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-rw-r--r--dexie.js4473
-rw-r--r--index.html45
-rw-r--r--main.js268
-rw-r--r--markup.js115
-rw-r--r--style.css260
5 files changed, 5161 insertions, 0 deletions
diff --git a/dexie.js b/dexie.js
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--- /dev/null
+++ b/dexie.js
@@ -0,0 +1,4473 @@
+/*
+ * Dexie.js - a minimalistic wrapper for IndexedDB
+ * ===============================================
+ *
+ * By David Fahlander, [email protected]
+ *
+ * Version 2.0.4, Fri May 25 2018
+ *
+ * http://dexie.org
+ *
+ * Apache License Version 2.0, January 2004, http://www.apache.org/licenses/
+ */
+
+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+ typeof define === 'function' && define.amd ? define(factory) :
+ (global.Dexie = factory());
+}(this, (function () { 'use strict';
+
+var keys = Object.keys;
+var isArray = Array.isArray;
+var _global = typeof self !== 'undefined' ? self :
+ typeof window !== 'undefined' ? window :
+ global;
+function extend(obj, extension) {
+ if (typeof extension !== 'object')
+ return obj;
+ keys(extension).forEach(function (key) {
+ obj[key] = extension[key];
+ });
+ return obj;
+}
+var getProto = Object.getPrototypeOf;
+var _hasOwn = {}.hasOwnProperty;
+function hasOwn(obj, prop) {
+ return _hasOwn.call(obj, prop);
+}
+function props(proto, extension) {
+ if (typeof extension === 'function')
+ extension = extension(getProto(proto));
+ keys(extension).forEach(function (key) {
+ setProp(proto, key, extension[key]);
+ });
+}
+var defineProperty = Object.defineProperty;
+function setProp(obj, prop, functionOrGetSet, options) {
+ defineProperty(obj, prop, extend(functionOrGetSet && hasOwn(functionOrGetSet, "get") && typeof functionOrGetSet.get === 'function' ?
+ { get: functionOrGetSet.get, set: functionOrGetSet.set, configurable: true } :
+ { value: functionOrGetSet, configurable: true, writable: true }, options));
+}
+function derive(Child) {
+ return {
+ from: function (Parent) {
+ Child.prototype = Object.create(Parent.prototype);
+ setProp(Child.prototype, "constructor", Child);
+ return {
+ extend: props.bind(null, Child.prototype)
+ };
+ }
+ };
+}
+var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
+function getPropertyDescriptor(obj, prop) {
+ var pd = getOwnPropertyDescriptor(obj, prop), proto;
+ return pd || (proto = getProto(obj)) && getPropertyDescriptor(proto, prop);
+}
+var _slice = [].slice;
+function slice(args, start, end) {
+ return _slice.call(args, start, end);
+}
+function override(origFunc, overridedFactory) {
+ return overridedFactory(origFunc);
+}
+function assert(b) {
+ if (!b)
+ throw new Error("Assertion Failed");
+}
+function asap(fn) {
+ if (_global.setImmediate)
+ setImmediate(fn);
+ else
+ setTimeout(fn, 0);
+}
+
+/** Generate an object (hash map) based on given array.
+ * @param extractor Function taking an array item and its index and returning an array of 2 items ([key, value]) to
+ * instert on the resulting object for each item in the array. If this function returns a falsy value, the
+ * current item wont affect the resulting object.
+ */
+function arrayToObject(array, extractor) {
+ return array.reduce(function (result, item, i) {
+ var nameAndValue = extractor(item, i);
+ if (nameAndValue)
+ result[nameAndValue[0]] = nameAndValue[1];
+ return result;
+ }, {});
+}
+function trycatcher(fn, reject) {
+ return function () {
+ try {
+ fn.apply(this, arguments);
+ }
+ catch (e) {
+ reject(e);
+ }
+ };
+}
+function tryCatch(fn, onerror, args) {
+ try {
+ fn.apply(null, args);
+ }
+ catch (ex) {
+ onerror && onerror(ex);
+ }
+}
+function getByKeyPath(obj, keyPath) {
+ // http://www.w3.org/TR/IndexedDB/#steps-for-extracting-a-key-from-a-value-using-a-key-path
+ if (hasOwn(obj, keyPath))
+ return obj[keyPath]; // This line is moved from last to first for optimization purpose.
+ if (!keyPath)
+ return obj;
+ if (typeof keyPath !== 'string') {
+ var rv = [];
+ for (var i = 0, l = keyPath.length; i < l; ++i) {
+ var val = getByKeyPath(obj, keyPath[i]);
+ rv.push(val);
+ }
+ return rv;
+ }
+ var period = keyPath.indexOf('.');
+ if (period !== -1) {
+ var innerObj = obj[keyPath.substr(0, period)];
+ return innerObj === undefined ? undefined : getByKeyPath(innerObj, keyPath.substr(period + 1));
+ }
+ return undefined;
+}
+function setByKeyPath(obj, keyPath, value) {
+ if (!obj || keyPath === undefined)
+ return;
+ if ('isFrozen' in Object && Object.isFrozen(obj))
+ return;
+ if (typeof keyPath !== 'string' && 'length' in keyPath) {
+ assert(typeof value !== 'string' && 'length' in value);
+ for (var i = 0, l = keyPath.length; i < l; ++i) {
+ setByKeyPath(obj, keyPath[i], value[i]);
+ }
+ }
+ else {
+ var period = keyPath.indexOf('.');
+ if (period !== -1) {
+ var currentKeyPath = keyPath.substr(0, period);
+ var remainingKeyPath = keyPath.substr(period + 1);
+ if (remainingKeyPath === "")
+ if (value === undefined)
+ delete obj[currentKeyPath];
+ else
+ obj[currentKeyPath] = value;
+ else {
+ var innerObj = obj[currentKeyPath];
+ if (!innerObj)
+ innerObj = (obj[currentKeyPath] = {});
+ setByKeyPath(innerObj, remainingKeyPath, value);
+ }
+ }
+ else {
+ if (value === undefined)
+ delete obj[keyPath];
+ else
+ obj[keyPath] = value;
+ }
+ }
+}
+function delByKeyPath(obj, keyPath) {
+ if (typeof keyPath === 'string')
+ setByKeyPath(obj, keyPath, undefined);
+ else if ('length' in keyPath)
+ [].map.call(keyPath, function (kp) {
+ setByKeyPath(obj, kp, undefined);
+ });
+}
+function shallowClone(obj) {
+ var rv = {};
+ for (var m in obj) {
+ if (hasOwn(obj, m))
+ rv[m] = obj[m];
+ }
+ return rv;
+}
+var concat = [].concat;
+function flatten(a) {
+ return concat.apply([], a);
+}
+//https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm
+var intrinsicTypes = "Boolean,String,Date,RegExp,Blob,File,FileList,ArrayBuffer,DataView,Uint8ClampedArray,ImageData,Map,Set"
+ .split(',').concat(flatten([8, 16, 32, 64].map(function (num) { return ["Int", "Uint", "Float"].map(function (t) { return t + num + "Array"; }); }))).filter(function (t) { return _global[t]; }).map(function (t) { return _global[t]; });
+function deepClone(any) {
+ if (!any || typeof any !== 'object')
+ return any;
+ var rv;
+ if (isArray(any)) {
+ rv = [];
+ for (var i = 0, l = any.length; i < l; ++i) {
+ rv.push(deepClone(any[i]));
+ }
+ }
+ else if (intrinsicTypes.indexOf(any.constructor) >= 0) {
+ rv = any;
+ }
+ else {
+ rv = any.constructor ? Object.create(any.constructor.prototype) : {};
+ for (var prop in any) {
+ if (hasOwn(any, prop)) {
+ rv[prop] = deepClone(any[prop]);
+ }
+ }
+ }
+ return rv;
+}
+function getObjectDiff(a, b, rv, prfx) {
+ // Compares objects a and b and produces a diff object.
+ rv = rv || {};
+ prfx = prfx || '';
+ keys(a).forEach(function (prop) {
+ if (!hasOwn(b, prop))
+ rv[prfx + prop] = undefined; // Property removed
+ else {
+ var ap = a[prop], bp = b[prop];
+ if (typeof ap === 'object' && typeof bp === 'object' &&
+ ap && bp &&
+ // Now compare constructors are same (not equal because wont work in Safari)
+ ('' + ap.constructor) === ('' + bp.constructor))
+ // Same type of object but its properties may have changed
+ getObjectDiff(ap, bp, rv, prfx + prop + ".");
+ else if (ap !== bp)
+ rv[prfx + prop] = b[prop]; // Primitive value changed
+ }
+ });
+ keys(b).forEach(function (prop) {
+ if (!hasOwn(a, prop)) {
+ rv[prfx + prop] = b[prop]; // Property added
+ }
+ });
+ return rv;
+}
+// If first argument is iterable or array-like, return it as an array
+var iteratorSymbol = typeof Symbol !== 'undefined' && Symbol.iterator;
+var getIteratorOf = iteratorSymbol ? function (x) {
+ var i;
+ return x != null && (i = x[iteratorSymbol]) && i.apply(x);
+} : function () { return null; };
+var NO_CHAR_ARRAY = {};
+// Takes one or several arguments and returns an array based on the following criteras:
+// * If several arguments provided, return arguments converted to an array in a way that
+// still allows javascript engine to optimize the code.
+// * If single argument is an array, return a clone of it.
+// * If this-pointer equals NO_CHAR_ARRAY, don't accept strings as valid iterables as a special
+// case to the two bullets below.
+// * If single argument is an iterable, convert it to an array and return the resulting array.
+// * If single argument is array-like (has length of type number), convert it to an array.
+function getArrayOf(arrayLike) {
+ var i, a, x, it;
+ if (arguments.length === 1) {
+ if (isArray(arrayLike))
+ return arrayLike.slice();
+ if (this === NO_CHAR_ARRAY && typeof arrayLike === 'string')
+ return [arrayLike];
+ if ((it = getIteratorOf(arrayLike))) {
+ a = [];
+ while ((x = it.next()), !x.done)
+ a.push(x.value);
+ return a;
+ }
+ if (arrayLike == null)
+ return [arrayLike];
+ i = arrayLike.length;
+ if (typeof i === 'number') {
+ a = new Array(i);
+ while (i--)
+ a[i] = arrayLike[i];
+ return a;
+ }
+ return [arrayLike];
+ }
+ i = arguments.length;
+ a = new Array(i);
+ while (i--)
+ a[i] = arguments[i];
+ return a;
+}
+
+// By default, debug will be true only if platform is a web platform and its page is served from localhost.
+// When debug = true, error's stacks will contain asyncronic long stacks.
+var debug = typeof location !== 'undefined' &&
+ // By default, use debug mode if served from localhost.
+ /^(http|https):\/\/(localhost|127\.0\.0\.1)/.test(location.href);
+function setDebug(value, filter) {
+ debug = value;
+ libraryFilter = filter;
+}
+var libraryFilter = function () { return true; };
+var NEEDS_THROW_FOR_STACK = !new Error("").stack;
+function getErrorWithStack() {
+ "use strict";
+ if (NEEDS_THROW_FOR_STACK)
+ try {
+ // Doing something naughty in strict mode here to trigger a specific error
+ // that can be explicitely ignored in debugger's exception settings.
+ // If we'd just throw new Error() here, IE's debugger's exception settings
+ // will just consider it as "exception thrown by javascript code" which is
+ // something you wouldn't want it to ignore.
+ getErrorWithStack.arguments;
+ throw new Error(); // Fallback if above line don't throw.
+ }
+ catch (e) {
+ return e;
+ }
+ return new Error();
+}
+function prettyStack(exception, numIgnoredFrames) {
+ var stack = exception.stack;
+ if (!stack)
+ return "";
+ numIgnoredFrames = (numIgnoredFrames || 0);
+ if (stack.indexOf(exception.name) === 0)
+ numIgnoredFrames += (exception.name + exception.message).split('\n').length;
+ return stack.split('\n')
+ .slice(numIgnoredFrames)
+ .filter(libraryFilter)
+ .map(function (frame) { return "\n" + frame; })
+ .join('');
+}
+function deprecated(what, fn) {
+ return function () {
+ console.warn(what + " is deprecated. See https://github.com/dfahlander/Dexie.js/wiki/Deprecations. " + prettyStack(getErrorWithStack(), 1));
+ return fn.apply(this, arguments);
+ };
+}
+
+var dexieErrorNames = [
+ 'Modify',
+ 'Bulk',
+ 'OpenFailed',
+ 'VersionChange',
+ 'Schema',
+ 'Upgrade',
+ 'InvalidTable',
+ 'MissingAPI',
+ 'NoSuchDatabase',
+ 'InvalidArgument',
+ 'SubTransaction',
+ 'Unsupported',
+ 'Internal',
+ 'DatabaseClosed',
+ 'PrematureCommit',
+ 'ForeignAwait'
+];
+var idbDomErrorNames = [
+ 'Unknown',
+ 'Constraint',
+ 'Data',
+ 'TransactionInactive',
+ 'ReadOnly',
+ 'Version',
+ 'NotFound',
+ 'InvalidState',
+ 'InvalidAccess',
+ 'Abort',
+ 'Timeout',
+ 'QuotaExceeded',
+ 'Syntax',
+ 'DataClone'
+];
+var errorList = dexieErrorNames.concat(idbDomErrorNames);
+var defaultTexts = {
+ VersionChanged: "Database version changed by other database connection",
+ DatabaseClosed: "Database has been closed",
+ Abort: "Transaction aborted",
+ TransactionInactive: "Transaction has already completed or failed"
+};
+//
+// DexieError - base class of all out exceptions.
+//
+function DexieError(name, msg) {
+ // Reason we don't use ES6 classes is because:
+ // 1. It bloats transpiled code and increases size of minified code.
+ // 2. It doesn't give us much in this case.
+ // 3. It would require sub classes to call super(), which
+ // is not needed when deriving from Error.
+ this._e = getErrorWithStack();
+ this.name = name;
+ this.message = msg;
+}
+derive(DexieError).from(Error).extend({
+ stack: {
+ get: function () {
+ return this._stack ||
+ (this._stack = this.name + ": " + this.message + prettyStack(this._e, 2));
+ }
+ },
+ toString: function () { return this.name + ": " + this.message; }
+});
+function getMultiErrorMessage(msg, failures) {
+ return msg + ". Errors: " + failures
+ .map(function (f) { return f.toString(); })
+ .filter(function (v, i, s) { return s.indexOf(v) === i; }) // Only unique error strings
+ .join('\n');
+}
+//
+// ModifyError - thrown in Collection.modify()
+// Specific constructor because it contains members failures and failedKeys.
+//
+function ModifyError(msg, failures, successCount, failedKeys) {
+ this._e = getErrorWithStack();
+ this.failures = failures;
+ this.failedKeys = failedKeys;
+ this.successCount = successCount;
+}
+derive(ModifyError).from(DexieError);
+function BulkError(msg, failures) {
+ this._e = getErrorWithStack();
+ this.name = "BulkError";
+ this.failures = failures;
+ this.message = getMultiErrorMessage(msg, failures);
+}
+derive(BulkError).from(DexieError);
+//
+//
+// Dynamically generate error names and exception classes based
+// on the names in errorList.
+//
+//
+// Map of {ErrorName -> ErrorName + "Error"}
+var errnames = errorList.reduce(function (obj, name) { return (obj[name] = name + "Error", obj); }, {});
+// Need an alias for DexieError because we're gonna create subclasses with the same name.
+var BaseException = DexieError;
+// Map of {ErrorName -> exception constructor}
+var exceptions = errorList.reduce(function (obj, name) {
+ // Let the name be "DexieError" because this name may
+ // be shown in call stack and when debugging. DexieError is
+ // the most true name because it derives from DexieError,
+ // and we cannot change Function.name programatically without
+ // dynamically create a Function object, which would be considered
+ // 'eval-evil'.
+ var fullName = name + "Error";
+ function DexieError(msgOrInner, inner) {
+ this._e = getErrorWithStack();
+ this.name = fullName;
+ if (!msgOrInner) {
+ this.message = defaultTexts[name] || fullName;
+ this.inner = null;
+ }
+ else if (typeof msgOrInner === 'string') {
+ this.message = msgOrInner;
+ this.inner = inner || null;
+ }
+ else if (typeof msgOrInner === 'object') {
+ this.message = msgOrInner.name + " " + msgOrInner.message;
+ this.inner = msgOrInner;
+ }
+ }
+ derive(DexieError).from(BaseException);
+ obj[name] = DexieError;
+ return obj;
+}, {});
+// Use ECMASCRIPT standard exceptions where applicable:
+exceptions.Syntax = SyntaxError;
+exceptions.Type = TypeError;
+exceptions.Range = RangeError;
+var exceptionMap = idbDomErrorNames.reduce(function (obj, name) {
+ obj[name + "Error"] = exceptions[name];
+ return obj;
+}, {});
+function mapError(domError, message) {
+ if (!domError || domError instanceof DexieError || domError instanceof TypeError || domError instanceof SyntaxError || !domError.name || !exceptionMap[domError.name])
+ return domError;
+ var rv = new exceptionMap[domError.name](message || domError.message, domError);
+ if ("stack" in domError) {
+ // Derive stack from inner exception if it has a stack
+ setProp(rv, "stack", { get: function () {
+ return this.inner.stack;
+ } });
+ }
+ return rv;
+}
+var fullNameExceptions = errorList.reduce(function (obj, name) {
+ if (["Syntax", "Type", "Range"].indexOf(name) === -1)
+ obj[name + "Error"] = exceptions[name];
+ return obj;
+}, {});
+fullNameExceptions.ModifyError = ModifyError;
+fullNameExceptions.DexieError = DexieError;
+fullNameExceptions.BulkError = BulkError;
+
+function nop() { }
+function mirror(val) { return val; }
+function pureFunctionChain(f1, f2) {
+ // Enables chained events that takes ONE argument and returns it to the next function in chain.
+ // This pattern is used in the hook("reading") event.
+ if (f1 == null || f1 === mirror)
+ return f2;
+ return function (val) {
+ return f2(f1(val));
+ };
+}
+function callBoth(on1, on2) {
+ return function () {
+ on1.apply(this, arguments);
+ on2.apply(this, arguments);
+ };
+}
+function hookCreatingChain(f1, f2) {
+ // Enables chained events that takes several arguments and may modify first argument by making a modification and then returning the same instance.
+ // This pattern is used in the hook("creating") event.
+ if (f1 === nop)
+ return f2;
+ return function () {
+ var res = f1.apply(this, arguments);
+ if (res !== undefined)
+ arguments[0] = res;
+ var onsuccess = this.onsuccess, // In case event listener has set this.onsuccess
+ onerror = this.onerror; // In case event listener has set this.onerror
+ this.onsuccess = null;
+ this.onerror = null;
+ var res2 = f2.apply(this, arguments);
+ if (onsuccess)
+ this.onsuccess = this.onsuccess ? callBoth(onsuccess, this.onsuccess) : onsuccess;
+ if (onerror)
+ this.onerror = this.onerror ? callBoth(onerror, this.onerror) : onerror;
+ return res2 !== undefined ? res2 : res;
+ };
+}
+function hookDeletingChain(f1, f2) {
+ if (f1 === nop)
+ return f2;
+ return function () {
+ f1.apply(this, arguments);
+ var onsuccess = this.onsuccess, // In case event listener has set this.onsuccess
+ onerror = this.onerror; // In case event listener has set this.onerror
+ this.onsuccess = this.onerror = null;
+ f2.apply(this, arguments);
+ if (onsuccess)
+ this.onsuccess = this.onsuccess ? callBoth(onsuccess, this.onsuccess) : onsuccess;
+ if (onerror)
+ this.onerror = this.onerror ? callBoth(onerror, this.onerror) : onerror;
+ };
+}
+function hookUpdatingChain(f1, f2) {
+ if (f1 === nop)
+ return f2;
+ return function (modifications) {
+ var res = f1.apply(this, arguments);
+ extend(modifications, res); // If f1 returns new modifications, extend caller's modifications with the result before calling next in chain.
+ var onsuccess = this.onsuccess, // In case event listener has set this.onsuccess
+ onerror = this.onerror; // In case event listener has set this.onerror
+ this.onsuccess = null;
+ this.onerror = null;
+ var res2 = f2.apply(this, arguments);
+ if (onsuccess)
+ this.onsuccess = this.onsuccess ? callBoth(onsuccess, this.onsuccess) : onsuccess;
+ if (onerror)
+ this.onerror = this.onerror ? callBoth(onerror, this.onerror) : onerror;
+ return res === undefined ?
+ (res2 === undefined ? undefined : res2) :
+ (extend(res, res2));
+ };
+}
+function reverseStoppableEventChain(f1, f2) {
+ if (f1 === nop)
+ return f2;
+ return function () {
+ if (f2.apply(this, arguments) === false)
+ return false;
+ return f1.apply(this, arguments);
+ };
+}
+
+function promisableChain(f1, f2) {
+ if (f1 === nop)
+ return f2;
+ return function () {
+ var res = f1.apply(this, arguments);
+ if (res && typeof res.then === 'function') {
+ var thiz = this, i = arguments.length, args = new Array(i);
+ while (i--)
+ args[i] = arguments[i];
+ return res.then(function () {
+ return f2.apply(thiz, args);
+ });
+ }
+ return f2.apply(this, arguments);
+ };
+}
+
+/*
+ * Copyright (c) 2014-2017 David Fahlander
+ * Apache License Version 2.0, January 2004, http://www.apache.org/licenses/LICENSE-2.0
+ */
+//
+// Promise and Zone (PSD) for Dexie library
+//
+// I started out writing this Promise class by copying promise-light (https://github.com/taylorhakes/promise-light) by
+// https://github.com/taylorhakes - an A+ and ECMASCRIPT 6 compliant Promise implementation.
+//
+// In previous versions this was fixed by not calling setTimeout when knowing that the resolve() or reject() came from another
+// tick. In Dexie v1.4.0, I've rewritten the Promise class entirely. Just some fragments of promise-light is left. I use
+// another strategy now that simplifies everything a lot: to always execute callbacks in a new micro-task, but have an own micro-task
+// engine that is indexedDB compliant across all browsers.
+// Promise class has also been optimized a lot with inspiration from bluebird - to avoid closures as much as possible.
+// Also with inspiration from bluebird, asyncronic stacks in debug mode.
+//
+// Specific non-standard features of this Promise class:
+// * Custom zone support (a.k.a. PSD) with ability to keep zones also when using native promises as well as
+// native async / await.
+// * Promise.follow() method built upon the custom zone engine, that allows user to track all promises created from current stack frame
+// and below + all promises that those promises creates or awaits.
+// * Detect any unhandled promise in a PSD-scope (PSD.onunhandled).
+//
+// David Fahlander, https://github.com/dfahlander
+//
+// Just a pointer that only this module knows about.
+// Used in Promise constructor to emulate a private constructor.
+var INTERNAL = {};
+// Async stacks (long stacks) must not grow infinitely.
+var LONG_STACKS_CLIP_LIMIT = 100;
+var MAX_LONG_STACKS = 20;
+var ZONE_ECHO_LIMIT = 7;
+var nativePromiseInstanceAndProto = (function () {
+ try {
+ // Be able to patch native async functions
+ return new Function("let F=async ()=>{},p=F();return [p,Object.getPrototypeOf(p),Promise.resolve(),F.constructor];")();
+ }
+ catch (e) {
+ var P = _global.Promise;
+ return P ?
+ [P.resolve(), P.prototype, P.resolve()] :
+ [];
+ }
+})();
+var resolvedNativePromise = nativePromiseInstanceAndProto[0];
+var nativePromiseProto = nativePromiseInstanceAndProto[1];
+var resolvedGlobalPromise = nativePromiseInstanceAndProto[2];
+var nativePromiseThen = nativePromiseProto && nativePromiseProto.then;
+var NativePromise = resolvedNativePromise && resolvedNativePromise.constructor;
+var AsyncFunction = nativePromiseInstanceAndProto[3];
+var patchGlobalPromise = !!resolvedGlobalPromise;
+var stack_being_generated = false;
+/* The default function used only for the very first promise in a promise chain.
+ As soon as then promise is resolved or rejected, all next tasks will be executed in micro ticks
+ emulated in this module. For indexedDB compatibility, this means that every method needs to
+ execute at least one promise before doing an indexedDB operation. Dexie will always call
+ db.ready().then() for every operation to make sure the indexedDB event is started in an
+ indexedDB-compatible emulated micro task loop.
+*/
+var schedulePhysicalTick = resolvedGlobalPromise ?
+ function () { resolvedGlobalPromise.then(physicalTick); }
+ :
+ _global.setImmediate ?
+ // setImmediate supported. Those modern platforms also supports Function.bind().
+ setImmediate.bind(null, physicalTick) :
+ _global.MutationObserver ?
+ // MutationObserver supported
+ function () {
+ var hiddenDiv = document.createElement("div");
+ (new MutationObserver(function () {
+ physicalTick();
+ hiddenDiv = null;
+ })).observe(hiddenDiv, { attributes: true });
+ hiddenDiv.setAttribute('i', '1');
+ } :
+ // No support for setImmediate or MutationObserver. No worry, setTimeout is only called
+ // once time. Every tick that follows will be our emulated micro tick.
+ // Could have uses setTimeout.bind(null, 0, physicalTick) if it wasnt for that FF13 and below has a bug
+ function () { setTimeout(physicalTick, 0); };
+// Configurable through Promise.scheduler.
+// Don't export because it would be unsafe to let unknown
+// code call it unless they do try..catch within their callback.
+// This function can be retrieved through getter of Promise.scheduler though,
+// but users must not do Promise.scheduler = myFuncThatThrowsException
+var asap$1 = function (callback, args) {
+ microtickQueue.push([callback, args]);
+ if (needsNewPhysicalTick) {
+ schedulePhysicalTick();
+ needsNewPhysicalTick = false;
+ }
+};
+var isOutsideMicroTick = true;
+var needsNewPhysicalTick = true;
+var unhandledErrors = [];
+var rejectingErrors = [];
+var currentFulfiller = null;
+var rejectionMapper = mirror; // Remove in next major when removing error mapping of DOMErrors and DOMExceptions
+var globalPSD = {
+ id: 'global',
+ global: true,
+ ref: 0,
+ unhandleds: [],
+ onunhandled: globalError,
+ pgp: false,
+ env: {},
+ finalize: function () {
+ this.unhandleds.forEach(function (uh) {
+ try {
+ globalError(uh[0], uh[1]);
+ }
+ catch (e) { }
+ });
+ }
+};
+var PSD = globalPSD;
+var microtickQueue = []; // Callbacks to call in this or next physical tick.
+var numScheduledCalls = 0; // Number of listener-calls left to do in this physical tick.
+var tickFinalizers = []; // Finalizers to call when there are no more async calls scheduled within current physical tick.
+function Promise(fn) {
+ if (typeof this !== 'object')
+ throw new TypeError('Promises must be constructed via new');
+ this._listeners = [];
+ this.onuncatched = nop; // Deprecate in next major. Not needed. Better to use global error handler.
+ // A library may set `promise._lib = true;` after promise is created to make resolve() or reject()
+ // execute the microtask engine implicitely within the call to resolve() or reject().
+ // To remain A+ compliant, a library must only set `_lib=true` if it can guarantee that the stack
+ // only contains library code when calling resolve() or reject().
+ // RULE OF THUMB: ONLY set _lib = true for promises explicitely resolving/rejecting directly from
+ // global scope (event handler, timer etc)!
+ this._lib = false;
+ // Current async scope
+ var psd = (this._PSD = PSD);
+ if (debug) {
+ this._stackHolder = getErrorWithStack();
+ this._prev = null;
+ this._numPrev = 0; // Number of previous promises (for long stacks)
+ }
+ if (typeof fn !== 'function') {
+ if (fn !== INTERNAL)
+ throw new TypeError('Not a function');
+ // Private constructor (INTERNAL, state, value).
+ // Used internally by Promise.resolve() and Promise.reject().
+ this._state = arguments[1];
+ this._value = arguments[2];
+ if (this._state === false)
+ handleRejection(this, this._value); // Map error, set stack and addPossiblyUnhandledError().
+ return;
+ }
+ this._state = null; // null (=pending), false (=rejected) or true (=resolved)
+ this._value = null; // error or result
+ ++psd.ref; // Refcounting current scope
+ executePromiseTask(this, fn);
+}
+// Prepare a property descriptor to put onto Promise.prototype.then
+var thenProp = {
+ get: function () {
+ var psd = PSD, microTaskId = totalEchoes;
+ function then(onFulfilled, onRejected) {
+ var _this = this;
+ var possibleAwait = !psd.global && (psd !== PSD || microTaskId !== totalEchoes);
+ if (possibleAwait)
+ decrementExpectedAwaits();
+ var rv = new Promise(function (resolve, reject) {
+ propagateToListener(_this, new Listener(nativeAwaitCompatibleWrap(onFulfilled, psd, possibleAwait), nativeAwaitCompatibleWrap(onRejected, psd, possibleAwait), resolve, reject, psd));
+ });
+ debug && linkToPreviousPromise(rv, this);
+ return rv;
+ }
+ then.prototype = INTERNAL; // For idempotense, see setter below.
+ return then;
+ },
+ // Be idempotent and allow another framework (such as zone.js or another instance of a Dexie.Promise module) to replace Promise.prototype.then
+ // and when that framework wants to restore the original property, we must identify that and restore the original property descriptor.
+ set: function (value) {
+ setProp(this, 'then', value && value.prototype === INTERNAL ?
+ thenProp : // Restore to original property descriptor.
+ {
+ get: function () {
+ return value; // Getter returning provided value (behaves like value is just changed)
+ },
+ set: thenProp.set // Keep a setter that is prepared to restore original.
+ });
+ }
+};
+props(Promise.prototype, {
+ then: thenProp,
+ _then: function (onFulfilled, onRejected) {
+ // A little tinier version of then() that don't have to create a resulting promise.
+ propagateToListener(this, new Listener(null, null, onFulfilled, onRejected, PSD));
+ },
+ catch: function (onRejected) {
+ if (arguments.length === 1)
+ return this.then(null, onRejected);
+ // First argument is the Error type to catch
+ var type = arguments[0], handler = arguments[1];
+ return typeof type === 'function' ? this.then(null, function (err) {
+ // Catching errors by its constructor type (similar to java / c++ / c#)
+ // Sample: promise.catch(TypeError, function (e) { ... });
+ return err instanceof type ? handler(err) : PromiseReject(err);
+ })
+ : this.then(null, function (err) {
+ // Catching errors by the error.name property. Makes sense for indexedDB where error type
+ // is always DOMError but where e.name tells the actual error type.
+ // Sample: promise.catch('ConstraintError', function (e) { ... });
+ return err && err.name === type ? handler(err) : PromiseReject(err);
+ });
+ },
+ finally: function (onFinally) {
+ return this.then(function (value) {
+ onFinally();
+ return value;
+ }, function (err) {
+ onFinally();
+ return PromiseReject(err);
+ });
+ },
+ stack: {
+ get: function () {
+ if (this._stack)
+ return this._stack;
+ try {
+ stack_being_generated = true;
+ var stacks = getStack(this, [], MAX_LONG_STACKS);
+ var stack = stacks.join("\nFrom previous: ");
+ if (this._state !== null)
+ this._stack = stack; // Stack may be updated on reject.
+ return stack;
+ }
+ finally {
+ stack_being_generated = false;
+ }
+ }
+ },
+ timeout: function (ms, msg) {
+ var _this = this;
+ return ms < Infinity ?
+ new Promise(function (resolve, reject) {
+ var handle = setTimeout(function () { return reject(new exceptions.Timeout(msg)); }, ms);
+ _this.then(resolve, reject).finally(clearTimeout.bind(null, handle));
+ }) : this;
+ }
+});
+if (typeof Symbol !== 'undefined' && Symbol.toStringTag)
+ setProp(Promise.prototype, Symbol.toStringTag, 'Promise');
+// Now that Promise.prototype is defined, we have all it takes to set globalPSD.env.
+// Environment globals snapshotted on leaving global zone
+globalPSD.env = snapShot();
+function Listener(onFulfilled, onRejected, resolve, reject, zone) {
+ this.onFulfilled = typeof onFulfilled === 'function' ? onFulfilled : null;
+ this.onRejected = typeof onRejected === 'function' ? onRejected : null;
+ this.resolve = resolve;
+ this.reject = reject;
+ this.psd = zone;
+}
+// Promise Static Properties
+props(Promise, {
+ all: function () {
+ var values = getArrayOf.apply(null, arguments) // Supports iterables, implicit arguments and array-like.
+ .map(onPossibleParallellAsync); // Handle parallell async/awaits
+ return new Promise(function (resolve, reject) {
+ if (values.length === 0)
+ resolve([]);
+ var remaining = values.length;
+ values.forEach(function (a, i) { return Promise.resolve(a).then(function (x) {
+ values[i] = x;
+ if (!--remaining)
+ resolve(values);
+ }, reject); });
+ });
+ },
+ resolve: function (value) {
+ if (value instanceof Promise)
+ return value;
+ if (value && typeof value.then === 'function')
+ return new Promise(function (resolve, reject) {
+ value.then(resolve, reject);
+ });
+ var rv = new Promise(INTERNAL, true, value);
+ linkToPreviousPromise(rv, currentFulfiller);
+ return rv;
+ },
+ reject: PromiseReject,
+ race: function () {
+ var values = getArrayOf.apply(null, arguments).map(onPossibleParallellAsync);
+ return new Promise(function (resolve, reject) {
+ values.map(function (value) { return Promise.resolve(value).then(resolve, reject); });
+ });
+ },
+ PSD: {
+ get: function () { return PSD; },
+ set: function (value) { return PSD = value; }
+ },
+ //totalEchoes: {get: ()=>totalEchoes},
+ //task: {get: ()=>task},
+ newPSD: newScope,
+ usePSD: usePSD,
+ scheduler: {
+ get: function () { return asap$1; },
+ set: function (value) { asap$1 = value; }
+ },
+ rejectionMapper: {
+ get: function () { return rejectionMapper; },
+ set: function (value) { rejectionMapper = value; } // Map reject failures
+ },
+ follow: function (fn, zoneProps) {
+ return new Promise(function (resolve, reject) {
+ return newScope(function (resolve, reject) {
+ var psd = PSD;
+ psd.unhandleds = []; // For unhandled standard- or 3rd party Promises. Checked at psd.finalize()
+ psd.onunhandled = reject; // Triggered directly on unhandled promises of this library.
+ psd.finalize = callBoth(function () {
+ var _this = this;
+ // Unhandled standard or 3rd part promises are put in PSD.unhandleds and
+ // examined upon scope completion while unhandled rejections in this Promise
+ // will trigger directly through psd.onunhandled
+ run_at_end_of_this_or_next_physical_tick(function () {
+ _this.unhandleds.length === 0 ? resolve() : reject(_this.unhandleds[0]);
+ });
+ }, psd.finalize);
+ fn();
+ }, zoneProps, resolve, reject);
+ });
+ }
+});
+/**
+* Take a potentially misbehaving resolver function and make sure
+* onFulfilled and onRejected are only called once.
+*
+* Makes no guarantees about asynchrony.
+*/
+function executePromiseTask(promise, fn) {
+ // Promise Resolution Procedure:
+ // https://github.com/promises-aplus/promises-spec#the-promise-resolution-procedure
+ try {
+ fn(function (value) {
+ if (promise._state !== null)
+ return; // Already settled
+ if (value === promise)
+ throw new TypeError('A promise cannot be resolved with itself.');
+ var shouldExecuteTick = promise._lib && beginMicroTickScope();
+ if (value && typeof value.then === 'function') {
+ executePromiseTask(promise, function (resolve, reject) {
+ value instanceof Promise ?
+ value._then(resolve, reject) :
+ value.then(resolve, reject);
+ });
+ }
+ else {
+ promise._state = true;
+ promise._value = value;
+ propagateAllListeners(promise);
+ }
+ if (shouldExecuteTick)
+ endMicroTickScope();
+ }, handleRejection.bind(null, promise)); // If Function.bind is not supported. Exception is handled in catch below
+ }
+ catch (ex) {
+ handleRejection(promise, ex);
+ }
+}
+function handleRejection(promise, reason) {
+ rejectingErrors.push(reason);
+ if (promise._state !== null)
+ return;
+ var shouldExecuteTick = promise._lib && beginMicroTickScope();
+ reason = rejectionMapper(reason);
+ promise._state = false;
+ promise._value = reason;
+ debug && reason !== null && typeof reason === 'object' && !reason._promise && tryCatch(function () {
+ var origProp = getPropertyDescriptor(reason, "stack");
+ reason._promise = promise;
+ setProp(reason, "stack", {
+ get: function () {
+ return stack_being_generated ?
+ origProp && (origProp.get ?
+ origProp.get.apply(reason) :
+ origProp.value) :
+ promise.stack;
+ }
+ });
+ });
+ // Add the failure to a list of possibly uncaught errors
+ addPossiblyUnhandledError(promise);
+ propagateAllListeners(promise);
+ if (shouldExecuteTick)
+ endMicroTickScope();
+}
+function propagateAllListeners(promise) {
+ //debug && linkToPreviousPromise(promise);
+ var listeners = promise._listeners;
+ promise._listeners = [];
+ for (var i = 0, len = listeners.length; i < len; ++i) {
+ propagateToListener(promise, listeners[i]);
+ }
+ var psd = promise._PSD;
+ --psd.ref || psd.finalize(); // if psd.ref reaches zero, call psd.finalize();
+ if (numScheduledCalls === 0) {
+ // If numScheduledCalls is 0, it means that our stack is not in a callback of a scheduled call,
+ // and that no deferreds where listening to this rejection or success.
+ // Since there is a risk that our stack can contain application code that may
+ // do stuff after this code is finished that may generate new calls, we cannot
+ // call finalizers here.
+ ++numScheduledCalls;
+ asap$1(function () {
+ if (--numScheduledCalls === 0)
+ finalizePhysicalTick(); // Will detect unhandled errors
+ }, []);
+ }
+}
+function propagateToListener(promise, listener) {
+ if (promise._state === null) {
+ promise._listeners.push(listener);
+ return;
+ }
+ var cb = promise._state ? listener.onFulfilled : listener.onRejected;
+ if (cb === null) {
+ // This Listener doesnt have a listener for the event being triggered (onFulfilled or onReject) so lets forward the event to any eventual listeners on the Promise instance returned by then() or catch()
+ return (promise._state ? listener.resolve : listener.reject)(promise._value);
+ }
+ ++listener.psd.ref;
+ ++numScheduledCalls;
+ asap$1(callListener, [cb, promise, listener]);
+}
+function callListener(cb, promise, listener) {
+ try {
+ // Set static variable currentFulfiller to the promise that is being fullfilled,
+ // so that we connect the chain of promises (for long stacks support)
+ currentFulfiller = promise;
+ // Call callback and resolve our listener with it's return value.
+ var ret, value = promise._value;
+ if (promise._state) {
+ // cb is onResolved
+ ret = cb(value);
+ }
+ else {
+ // cb is onRejected
+ if (rejectingErrors.length)
+ rejectingErrors = [];
+ ret = cb(value);
+ if (rejectingErrors.indexOf(value) === -1)
+ markErrorAsHandled(promise); // Callback didnt do Promise.reject(err) nor reject(err) onto another promise.
+ }
+ listener.resolve(ret);
+ }
+ catch (e) {
+ // Exception thrown in callback. Reject our listener.
+ listener.reject(e);
+ }
+ finally {
+ // Restore env and currentFulfiller.
+ currentFulfiller = null;
+ if (--numScheduledCalls === 0)
+ finalizePhysicalTick();
+ --listener.psd.ref || listener.psd.finalize();
+ }
+}
+function getStack(promise, stacks, limit) {
+ if (stacks.length === limit)
+ return stacks;
+ var stack = "";
+ if (promise._state === false) {
+ var failure = promise._value, errorName, message;
+ if (failure != null) {
+ errorName = failure.name || "Error";
+ message = failure.message || failure;
+ stack = prettyStack(failure, 0);
+ }
+ else {
+ errorName = failure; // If error is undefined or null, show that.
+ message = "";
+ }
+ stacks.push(errorName + (message ? ": " + message : "") + stack);
+ }
+ if (debug) {
+ stack = prettyStack(promise._stackHolder, 2);
+ if (stack && stacks.indexOf(stack) === -1)
+ stacks.push(stack);
+ if (promise._prev)
+ getStack(promise._prev, stacks, limit);
+ }
+ return stacks;
+}
+function linkToPreviousPromise(promise, prev) {
+ // Support long stacks by linking to previous completed promise.
+ var numPrev = prev ? prev._numPrev + 1 : 0;
+ if (numPrev < LONG_STACKS_CLIP_LIMIT) {
+ promise._prev = prev;
+ promise._numPrev = numPrev;
+ }
+}
+/* The callback to schedule with setImmediate() or setTimeout().
+ It runs a virtual microtick and executes any callback registered in microtickQueue.
+ */
+function physicalTick() {
+ beginMicroTickScope() && endMicroTickScope();
+}
+function beginMicroTickScope() {
+ var wasRootExec = isOutsideMicroTick;
+ isOutsideMicroTick = false;
+ needsNewPhysicalTick = false;
+ return wasRootExec;
+}
+/* Executes micro-ticks without doing try..catch.
+ This can be possible because we only use this internally and
+ the registered functions are exception-safe (they do try..catch
+ internally before calling any external method). If registering
+ functions in the microtickQueue that are not exception-safe, this
+ would destroy the framework and make it instable. So we don't export
+ our asap method.
+*/
+function endMicroTickScope() {
+ var callbacks, i, l;
+ do {
+ while (microtickQueue.length > 0) {
+ callbacks = microtickQueue;
+ microtickQueue = [];
+ l = callbacks.length;
+ for (i = 0; i < l; ++i) {
+ var item = callbacks[i];
+ item[0].apply(null, item[1]);
+ }
+ }
+ } while (microtickQueue.length > 0);
+ isOutsideMicroTick = true;
+ needsNewPhysicalTick = true;
+}
+function finalizePhysicalTick() {
+ var unhandledErrs = unhandledErrors;
+ unhandledErrors = [];
+ unhandledErrs.forEach(function (p) {
+ p._PSD.onunhandled.call(null, p._value, p);
+ });
+ var finalizers = tickFinalizers.slice(0); // Clone first because finalizer may remove itself from list.
+ var i = finalizers.length;
+ while (i)
+ finalizers[--i]();
+}
+function run_at_end_of_this_or_next_physical_tick(fn) {
+ function finalizer() {
+ fn();
+ tickFinalizers.splice(tickFinalizers.indexOf(finalizer), 1);
+ }
+ tickFinalizers.push(finalizer);
+ ++numScheduledCalls;
+ asap$1(function () {
+ if (--numScheduledCalls === 0)
+ finalizePhysicalTick();
+ }, []);
+}
+function addPossiblyUnhandledError(promise) {
+ // Only add to unhandledErrors if not already there. The first one to add to this list
+ // will be upon the first rejection so that the root cause (first promise in the
+ // rejection chain) is the one listed.
+ if (!unhandledErrors.some(function (p) { return p._value === promise._value; }))
+ unhandledErrors.push(promise);
+}
+function markErrorAsHandled(promise) {
+ // Called when a reject handled is actually being called.
+ // Search in unhandledErrors for any promise whos _value is this promise_value (list
+ // contains only rejected promises, and only one item per error)
+ var i = unhandledErrors.length;
+ while (i)
+ if (unhandledErrors[--i]._value === promise._value) {
+ // Found a promise that failed with this same error object pointer,
+ // Remove that since there is a listener that actually takes care of it.
+ unhandledErrors.splice(i, 1);
+ return;
+ }
+}
+function PromiseReject(reason) {
+ return new Promise(INTERNAL, false, reason);
+}
+function wrap(fn, errorCatcher) {
+ var psd = PSD;
+ return function () {
+ var wasRootExec = beginMicroTickScope(), outerScope = PSD;
+ try {
+ switchToZone(psd, true);
+ return fn.apply(this, arguments);
+ }
+ catch (e) {
+ errorCatcher && errorCatcher(e);
+ }
+ finally {
+ switchToZone(outerScope, false);
+ if (wasRootExec)
+ endMicroTickScope();
+ }
+ };
+}
+//
+// variables used for native await support
+//
+var task = { awaits: 0, echoes: 0, id: 0 }; // The ongoing macro-task when using zone-echoing.
+var taskCounter = 0; // ID counter for macro tasks.
+var zoneStack = []; // Stack of left zones to restore asynchronically.
+var zoneEchoes = 0; // zoneEchoes is a must in order to persist zones between native await expressions.
+var totalEchoes = 0; // ID counter for micro-tasks. Used to detect possible native await in our Promise.prototype.then.
+var zone_id_counter = 0;
+function newScope(fn, props$$1, a1, a2) {
+ var parent = PSD, psd = Object.create(parent);
+ psd.parent = parent;
+ psd.ref = 0;
+ psd.global = false;
+ psd.id = ++zone_id_counter;
+ // Prepare for promise patching (done in usePSD):
+ var globalEnv = globalPSD.env;
+ psd.env = patchGlobalPromise ? {
+ Promise: Promise,
+ PromiseProp: { value: Promise, configurable: true, writable: true },
+ all: Promise.all,
+ race: Promise.race,
+ resolve: Promise.resolve,
+ reject: Promise.reject,
+ nthen: getPatchedPromiseThen(globalEnv.nthen, psd),
+ gthen: getPatchedPromiseThen(globalEnv.gthen, psd) // global then
+ } : {};
+ if (props$$1)
+ extend(psd, props$$1);
+ // unhandleds and onunhandled should not be specifically set here.
+ // Leave them on parent prototype.
+ // unhandleds.push(err) will push to parent's prototype
+ // onunhandled() will call parents onunhandled (with this scope's this-pointer though!)
+ ++parent.ref;
+ psd.finalize = function () {
+ --this.parent.ref || this.parent.finalize();
+ };
+ var rv = usePSD(psd, fn, a1, a2);
+ if (psd.ref === 0)
+ psd.finalize();
+ return rv;
+}
+// Function to call if scopeFunc returns NativePromise
+// Also for each NativePromise in the arguments to Promise.all()
+function incrementExpectedAwaits() {
+ if (!task.id)
+ task.id = ++taskCounter;
+ ++task.awaits;
+ task.echoes += ZONE_ECHO_LIMIT;
+ return task.id;
+}
+// Function to call when 'then' calls back on a native promise where onAwaitExpected() had been called.
+// Also call this when a native await calls then method on a promise. In that case, don't supply
+// sourceTaskId because we already know it refers to current task.
+function decrementExpectedAwaits(sourceTaskId) {
+ if (!task.awaits || (sourceTaskId && sourceTaskId !== task.id))
+ return;
+ if (--task.awaits === 0)
+ task.id = 0;
+ task.echoes = task.awaits * ZONE_ECHO_LIMIT; // Will reset echoes to 0 if awaits is 0.
+}
+// Call from Promise.all() and Promise.race()
+function onPossibleParallellAsync(possiblePromise) {
+ if (task.echoes && possiblePromise && possiblePromise.constructor === NativePromise) {
+ incrementExpectedAwaits();
+ return possiblePromise.then(function (x) {
+ decrementExpectedAwaits();
+ return x;
+ }, function (e) {
+ decrementExpectedAwaits();
+ return rejection(e);
+ });
+ }
+ return possiblePromise;
+}
+function zoneEnterEcho(targetZone) {
+ ++totalEchoes;
+ if (!task.echoes || --task.echoes === 0) {
+ task.echoes = task.id = 0; // Cancel zone echoing.
+ }
+ zoneStack.push(PSD);
+ switchToZone(targetZone, true);
+}
+function zoneLeaveEcho() {
+ var zone = zoneStack[zoneStack.length - 1];
+ zoneStack.pop();
+ switchToZone(zone, false);
+}
+function switchToZone(targetZone, bEnteringZone) {
+ var currentZone = PSD;
+ if (bEnteringZone ? task.echoes && (!zoneEchoes++ || targetZone !== PSD) : zoneEchoes && (!--zoneEchoes || targetZone !== PSD)) {
+ // Enter or leave zone asynchronically as well, so that tasks initiated during current tick
+ // will be surrounded by the zone when they are invoked.
+ enqueueNativeMicroTask(bEnteringZone ? zoneEnterEcho.bind(null, targetZone) : zoneLeaveEcho);
+ }
+ if (targetZone === PSD)
+ return;
+ PSD = targetZone; // The actual zone switch occurs at this line.
+ // Snapshot on every leave from global zone.
+ if (currentZone === globalPSD)
+ globalPSD.env = snapShot();
+ if (patchGlobalPromise) {
+ // Let's patch the global and native Promises (may be same or may be different)
+ var GlobalPromise = globalPSD.env.Promise;
+ // Swich environments (may be PSD-zone or the global zone. Both apply.)
+ var targetEnv = targetZone.env;
+ // Change Promise.prototype.then for native and global Promise (they MAY differ on polyfilled environments, but both can be accessed)
+ // Must be done on each zone change because the patched method contains targetZone in its closure.
+ nativePromiseProto.then = targetEnv.nthen;
+ GlobalPromise.prototype.then = targetEnv.gthen;
+ if (currentZone.global || targetZone.global) {
+ // Leaving or entering global zone. It's time to patch / restore global Promise.
+ // Set this Promise to window.Promise so that transiled async functions will work on Firefox, Safari and IE, as well as with Zonejs and angular.
+ Object.defineProperty(_global, 'Promise', targetEnv.PromiseProp);
+ // Support Promise.all() etc to work indexedDB-safe also when people are including es6-promise as a module (they might
+ // not be accessing global.Promise but a local reference to it)
+ GlobalPromise.all = targetEnv.all;
+ GlobalPromise.race = targetEnv.race;
+ GlobalPromise.resolve = targetEnv.resolve;
+ GlobalPromise.reject = targetEnv.reject;
+ }
+ }
+}
+function snapShot() {
+ var GlobalPromise = _global.Promise;
+ return patchGlobalPromise ? {
+ Promise: GlobalPromise,
+ PromiseProp: Object.getOwnPropertyDescriptor(_global, "Promise"),
+ all: GlobalPromise.all,
+ race: GlobalPromise.race,
+ resolve: GlobalPromise.resolve,
+ reject: GlobalPromise.reject,
+ nthen: nativePromiseProto.then,
+ gthen: GlobalPromise.prototype.then
+ } : {};
+}
+function usePSD(psd, fn, a1, a2, a3) {
+ var outerScope = PSD;
+ try {
+ switchToZone(psd, true);
+ return fn(a1, a2, a3);
+ }
+ finally {
+ switchToZone(outerScope, false);
+ }
+}
+function enqueueNativeMicroTask(job) {
+ //
+ // Precondition: nativePromiseThen !== undefined
+ //
+ nativePromiseThen.call(resolvedNativePromise, job);
+}
+function nativeAwaitCompatibleWrap(fn, zone, possibleAwait) {
+ return typeof fn !== 'function' ? fn : function () {
+ var outerZone = PSD;
+ if (possibleAwait)
+ incrementExpectedAwaits();
+ switchToZone(zone, true);
+ try {
+ return fn.apply(this, arguments);
+ }
+ finally {
+ switchToZone(outerZone, false);
+ }
+ };
+}
+function getPatchedPromiseThen(origThen, zone) {
+ return function (onResolved, onRejected) {
+ return origThen.call(this, nativeAwaitCompatibleWrap(onResolved, zone, false), nativeAwaitCompatibleWrap(onRejected, zone, false));
+ };
+}
+var UNHANDLEDREJECTION = "unhandledrejection";
+function globalError(err, promise) {
+ var rv;
+ try {
+ rv = promise.onuncatched(err);
+ }
+ catch (e) { }
+ if (rv !== false)
+ try {
+ var event, eventData = { promise: promise, reason: err };
+ if (_global.document && document.createEvent) {
+ event = document.createEvent('Event');
+ event.initEvent(UNHANDLEDREJECTION, true, true);
+ extend(event, eventData);
+ }
+ else if (_global.CustomEvent) {
+ event = new CustomEvent(UNHANDLEDREJECTION, { detail: eventData });
+ extend(event, eventData);
+ }
+ if (event && _global.dispatchEvent) {
+ dispatchEvent(event);
+ if (!_global.PromiseRejectionEvent && _global.onunhandledrejection)
+ // No native support for PromiseRejectionEvent but user has set window.onunhandledrejection. Manually call it.
+ try {
+ _global.onunhandledrejection(event);
+ }
+ catch (_) { }
+ }
+ if (!event.defaultPrevented) {
+ console.warn("Unhandled rejection: " + (err.stack || err));
+ }
+ }
+ catch (e) { }
+}
+var rejection = Promise.reject;
+
+function Events(ctx) {
+ var evs = {};
+ var rv = function (eventName, subscriber) {
+ if (subscriber) {
+ // Subscribe. If additional arguments than just the subscriber was provided, forward them as well.
+ var i = arguments.length, args = new Array(i - 1);
+ while (--i)
+ args[i - 1] = arguments[i];
+ evs[eventName].subscribe.apply(null, args);
+ return ctx;
+ }
+ else if (typeof (eventName) === 'string') {
+ // Return interface allowing to fire or unsubscribe from event
+ return evs[eventName];
+ }
+ };
+ rv.addEventType = add;
+ for (var i = 1, l = arguments.length; i < l; ++i) {
+ add(arguments[i]);
+ }
+ return rv;
+ function add(eventName, chainFunction, defaultFunction) {
+ if (typeof eventName === 'object')
+ return addConfiguredEvents(eventName);
+ if (!chainFunction)
+ chainFunction = reverseStoppableEventChain;
+ if (!defaultFunction)
+ defaultFunction = nop;
+ var context = {
+ subscribers: [],
+ fire: defaultFunction,
+ subscribe: function (cb) {
+ if (context.subscribers.indexOf(cb) === -1) {
+ context.subscribers.push(cb);
+ context.fire = chainFunction(context.fire, cb);
+ }
+ },
+ unsubscribe: function (cb) {
+ context.subscribers = context.subscribers.filter(function (fn) { return fn !== cb; });
+ context.fire = context.subscribers.reduce(chainFunction, defaultFunction);
+ }
+ };
+ evs[eventName] = rv[eventName] = context;
+ return context;
+ }
+ function addConfiguredEvents(cfg) {
+ // events(this, {reading: [functionChain, nop]});
+ keys(cfg).forEach(function (eventName) {
+ var args = cfg[eventName];
+ if (isArray(args)) {
+ add(eventName, cfg[eventName][0], cfg[eventName][1]);
+ }
+ else if (args === 'asap') {
+ // Rather than approaching event subscription using a functional approach, we here do it in a for-loop where subscriber is executed in its own stack
+ // enabling that any exception that occur wont disturb the initiator and also not nescessary be catched and forgotten.
+ var context = add(eventName, mirror, function fire() {
+ // Optimazation-safe cloning of arguments into args.
+ var i = arguments.length, args = new Array(i);
+ while (i--)
+ args[i] = arguments[i];
+ // All each subscriber:
+ context.subscribers.forEach(function (fn) {
+ asap(function fireEvent() {
+ fn.apply(null, args);
+ });
+ });
+ });
+ }
+ else
+ throw new exceptions.InvalidArgument("Invalid event config");
+ });
+ }
+}
+
+/*
+ * Dexie.js - a minimalistic wrapper for IndexedDB
+ * ===============================================
+ *
+ * Copyright (c) 2014-2017 David Fahlander
+ *
+ * Version 2.0.4, Fri May 25 2018
+ *
+ * http://dexie.org
+ *
+ * Apache License Version 2.0, January 2004, http://www.apache.org/licenses/LICENSE-2.0
+ *
+ */
+var DEXIE_VERSION = '2.0.4';
+var maxString = String.fromCharCode(65535);
+var maxKey = (function () { try {
+ IDBKeyRange.only([[]]);
+ return [[]];
+}
+catch (e) {
+ return maxString;
+} })();
+var minKey = -Infinity;
+var INVALID_KEY_ARGUMENT = "Invalid key provided. Keys must be of type string, number, Date or Array<string | number | Date>.";
+var STRING_EXPECTED = "String expected.";
+var connections = [];
+var isIEOrEdge = typeof navigator !== 'undefined' && /(MSIE|Trident|Edge)/.test(navigator.userAgent);
+var hasIEDeleteObjectStoreBug = isIEOrEdge;
+var hangsOnDeleteLargeKeyRange = isIEOrEdge;
+var dexieStackFrameFilter = function (frame) { return !/(dexie\.js|dexie\.min\.js)/.test(frame); };
+var dbNamesDB; // Global database for backing Dexie.getDatabaseNames() on browser without indexedDB.webkitGetDatabaseNames()
+// Init debug
+setDebug(debug, dexieStackFrameFilter);
+function Dexie(dbName, options) {
+ /// <param name="options" type="Object" optional="true">Specify only if you wich to control which addons that should run on this instance</param>
+ var deps = Dexie.dependencies;
+ var opts = extend({
+ // Default Options
+ addons: Dexie.addons,
+ autoOpen: true,
+ indexedDB: deps.indexedDB,
+ IDBKeyRange: deps.IDBKeyRange // Backend IDBKeyRange api. Default to browser env.
+ }, options);
+ var addons = opts.addons, autoOpen = opts.autoOpen, indexedDB = opts.indexedDB, IDBKeyRange = opts.IDBKeyRange;
+ var globalSchema = this._dbSchema = {};
+ var versions = [];
+ var dbStoreNames = [];
+ var allTables = {};
+ ///<var type="IDBDatabase" />
+ var idbdb = null; // Instance of IDBDatabase
+ var dbOpenError = null;
+ var isBeingOpened = false;
+ var onReadyBeingFired = null;
+ var openComplete = false;
+ var READONLY = "readonly", READWRITE = "readwrite";
+ var db = this;
+ var dbReadyResolve, dbReadyPromise = new Promise(function (resolve) {
+ dbReadyResolve = resolve;
+ }), cancelOpen, openCanceller = new Promise(function (_, reject) {
+ cancelOpen = reject;
+ });
+ var autoSchema = true;
+ var hasNativeGetDatabaseNames = !!getNativeGetDatabaseNamesFn(indexedDB), hasGetAll;
+ function init() {
+ // Default subscribers to "versionchange" and "blocked".
+ // Can be overridden by custom handlers. If custom handlers return false, these default
+ // behaviours will be prevented.
+ db.on("versionchange", function (ev) {
+ // Default behavior for versionchange event is to close database connection.
+ // Caller can override this behavior by doing db.on("versionchange", function(){ return false; });
+ // Let's not block the other window from making it's delete() or open() call.
+ // NOTE! This event is never fired in IE,Edge or Safari.
+ if (ev.newVersion > 0)
+ console.warn("Another connection wants to upgrade database '" + db.name + "'. Closing db now to resume the upgrade.");
+ else
+ console.warn("Another connection wants to delete database '" + db.name + "'. Closing db now to resume the delete request.");
+ db.close();
+ // In many web applications, it would be recommended to force window.reload()
+ // when this event occurs. To do that, subscribe to the versionchange event
+ // and call window.location.reload(true) if ev.newVersion > 0 (not a deletion)
+ // The reason for this is that your current web app obviously has old schema code that needs
+ // to be updated. Another window got a newer version of the app and needs to upgrade DB but
+ // your window is blocking it unless we close it here.
+ });
+ db.on("blocked", function (ev) {
+ if (!ev.newVersion || ev.newVersion < ev.oldVersion)
+ console.warn("Dexie.delete('" + db.name + "') was blocked");
+ else
+ console.warn("Upgrade '" + db.name + "' blocked by other connection holding version " + ev.oldVersion / 10);
+ });
+ }
+ //
+ //
+ //
+ // ------------------------- Versioning Framework---------------------------
+ //
+ //
+ //
+ this.version = function (versionNumber) {
+ /// <param name="versionNumber" type="Number"></param>
+ /// <returns type="Version"></returns>
+ if (idbdb || isBeingOpened)
+ throw new exceptions.Schema("Cannot add version when database is open");
+ this.verno = Math.max(this.verno, versionNumber);
+ var versionInstance = versions.filter(function (v) { return v._cfg.version === versionNumber; })[0];
+ if (versionInstance)
+ return versionInstance;
+ versionInstance = new Version(versionNumber);
+ versions.push(versionInstance);
+ versions.sort(lowerVersionFirst);
+ // Disable autoschema mode, as at least one version is specified.
+ autoSchema = false;
+ return versionInstance;
+ };
+ function Version(versionNumber) {
+ this._cfg = {
+ version: versionNumber,
+ storesSource: null,
+ dbschema: {},
+ tables: {},
+ contentUpgrade: null
+ };
+ this.stores({}); // Derive earlier schemas by default.
+ }
+ extend(Version.prototype, {
+ stores: function (stores) {
+ /// <summary>
+ /// Defines the schema for a particular version
+ /// </summary>
+ /// <param name="stores" type="Object">
+ /// Example: <br/>
+ /// {users: "id++,first,last,&amp;username,*email", <br/>
+ /// passwords: "id++,&amp;username"}<br/>
+ /// <br/>
+ /// Syntax: {Table: "[primaryKey][++],[&amp;][*]index1,[&amp;][*]index2,..."}<br/><br/>
+ /// Special characters:<br/>
+ /// "&amp;" means unique key, <br/>
+ /// "*" means value is multiEntry, <br/>
+ /// "++" means auto-increment and only applicable for primary key <br/>
+ /// </param>
+ this._cfg.storesSource = this._cfg.storesSource ? extend(this._cfg.storesSource, stores) : stores;
+ // Derive stores from earlier versions if they are not explicitely specified as null or a new syntax.
+ var storesSpec = {};
+ versions.forEach(function (version) {
+ extend(storesSpec, version._cfg.storesSource);
+ });
+ var dbschema = (this._cfg.dbschema = {});
+ this._parseStoresSpec(storesSpec, dbschema);
+ // Update the latest schema to this version
+ // Update API
+ globalSchema = db._dbSchema = dbschema;
+ removeTablesApi([allTables, db, Transaction.prototype]); // Keep Transaction.prototype even though it should be depr.
+ setApiOnPlace([allTables, db, Transaction.prototype, this._cfg.tables], keys(dbschema), dbschema);
+ dbStoreNames = keys(dbschema);
+ return this;
+ },
+ upgrade: function (upgradeFunction) {
+ this._cfg.contentUpgrade = upgradeFunction;
+ return this;
+ },
+ _parseStoresSpec: function (stores, outSchema) {
+ keys(stores).forEach(function (tableName) {
+ if (stores[tableName] !== null) {
+ var instanceTemplate = {};
+ var indexes = parseIndexSyntax(stores[tableName]);
+ var primKey = indexes.shift();
+ if (primKey.multi)
+ throw new exceptions.Schema("Primary key cannot be multi-valued");
+ if (primKey.keyPath)
+ setByKeyPath(instanceTemplate, primKey.keyPath, primKey.auto ? 0 : primKey.keyPath);
+ indexes.forEach(function (idx) {
+ if (idx.auto)
+ throw new exceptions.Schema("Only primary key can be marked as autoIncrement (++)");
+ if (!idx.keyPath)
+ throw new exceptions.Schema("Index must have a name and cannot be an empty string");
+ setByKeyPath(instanceTemplate, idx.keyPath, idx.compound ? idx.keyPath.map(function () { return ""; }) : "");
+ });
+ outSchema[tableName] = new TableSchema(tableName, primKey, indexes, instanceTemplate);
+ }
+ });
+ }
+ });
+ function runUpgraders(oldVersion, idbtrans, reject) {
+ var trans = db._createTransaction(READWRITE, dbStoreNames, globalSchema);
+ trans.create(idbtrans);
+ trans._completion.catch(reject);
+ var rejectTransaction = trans._reject.bind(trans);
+ newScope(function () {
+ PSD.trans = trans;
+ if (oldVersion === 0) {
+ // Create tables:
+ keys(globalSchema).forEach(function (tableName) {
+ createTable(idbtrans, tableName, globalSchema[tableName].primKey, globalSchema[tableName].indexes);
+ });
+ Promise.follow(function () { return db.on.populate.fire(trans); }).catch(rejectTransaction);
+ }
+ else
+ updateTablesAndIndexes(oldVersion, trans, idbtrans).catch(rejectTransaction);
+ });
+ }
+ function updateTablesAndIndexes(oldVersion, trans, idbtrans) {
+ // Upgrade version to version, step-by-step from oldest to newest version.
+ // Each transaction object will contain the table set that was current in that version (but also not-yet-deleted tables from its previous version)
+ var queue = [];
+ var oldVersionStruct = versions.filter(function (version) { return version._cfg.version === oldVersion; })[0];
+ if (!oldVersionStruct)
+ throw new exceptions.Upgrade("Dexie specification of currently installed DB version is missing");
+ globalSchema = db._dbSchema = oldVersionStruct._cfg.dbschema;
+ var anyContentUpgraderHasRun = false;
+ var versToRun = versions.filter(function (v) { return v._cfg.version > oldVersion; });
+ versToRun.forEach(function (version) {
+ /// <param name="version" type="Version"></param>
+ queue.push(function () {
+ var oldSchema = globalSchema;
+ var newSchema = version._cfg.dbschema;
+ adjustToExistingIndexNames(oldSchema, idbtrans);
+ adjustToExistingIndexNames(newSchema, idbtrans);
+ globalSchema = db._dbSchema = newSchema;
+ var diff = getSchemaDiff(oldSchema, newSchema);
+ // Add tables
+ diff.add.forEach(function (tuple) {
+ createTable(idbtrans, tuple[0], tuple[1].primKey, tuple[1].indexes);
+ });
+ // Change tables
+ diff.change.forEach(function (change) {
+ if (change.recreate) {
+ throw new exceptions.Upgrade("Not yet support for changing primary key");
+ }
+ else {
+ var store = idbtrans.objectStore(change.name);
+ // Add indexes
+ change.add.forEach(function (idx) {
+ addIndex(store, idx);
+ });
+ // Update indexes
+ change.change.forEach(function (idx) {
+ store.deleteIndex(idx.name);
+ addIndex(store, idx);
+ });
+ // Delete indexes
+ change.del.forEach(function (idxName) {
+ store.deleteIndex(idxName);
+ });
+ }
+ });
+ if (version._cfg.contentUpgrade) {
+ anyContentUpgraderHasRun = true;
+ return Promise.follow(function () {
+ version._cfg.contentUpgrade(trans);
+ });
+ }
+ });
+ queue.push(function (idbtrans) {
+ if (!anyContentUpgraderHasRun || !hasIEDeleteObjectStoreBug) {
+ var newSchema = version._cfg.dbschema;
+ // Delete old tables
+ deleteRemovedTables(newSchema, idbtrans);
+ }
+ });
+ });
+ // Now, create a queue execution engine
+ function runQueue() {
+ return queue.length ? Promise.resolve(queue.shift()(trans.idbtrans)).then(runQueue) :
+ Promise.resolve();
+ }
+ return runQueue().then(function () {
+ createMissingTables(globalSchema, idbtrans); // At last, make sure to create any missing tables. (Needed by addons that add stores to DB without specifying version)
+ });
+ }
+ function getSchemaDiff(oldSchema, newSchema) {
+ var diff = {
+ del: [],
+ add: [],
+ change: [] // Array of {name: tableName, recreate: newDefinition, del: delIndexNames, add: newIndexDefs, change: changedIndexDefs}
+ };
+ for (var table in oldSchema) {
+ if (!newSchema[table])
+ diff.del.push(table);
+ }
+ for (table in newSchema) {
+ var oldDef = oldSchema[table], newDef = newSchema[table];
+ if (!oldDef) {
+ diff.add.push([table, newDef]);
+ }
+ else {
+ var change = {
+ name: table,
+ def: newDef,
+ recreate: false,
+ del: [],
+ add: [],
+ change: []
+ };
+ if (oldDef.primKey.src !== newDef.primKey.src) {
+ // Primary key has changed. Remove and re-add table.
+ change.recreate = true;
+ diff.change.push(change);
+ }
+ else {
+ // Same primary key. Just find out what differs:
+ var oldIndexes = oldDef.idxByName;
+ var newIndexes = newDef.idxByName;
+ for (var idxName in oldIndexes) {
+ if (!newIndexes[idxName])
+ change.del.push(idxName);
+ }
+ for (idxName in newIndexes) {
+ var oldIdx = oldIndexes[idxName], newIdx = newIndexes[idxName];
+ if (!oldIdx)
+ change.add.push(newIdx);
+ else if (oldIdx.src !== newIdx.src)
+ change.change.push(newIdx);
+ }
+ if (change.del.length > 0 || change.add.length > 0 || change.change.length > 0) {
+ diff.change.push(change);
+ }
+ }
+ }
+ }
+ return diff;
+ }
+ function createTable(idbtrans, tableName, primKey, indexes) {
+ /// <param name="idbtrans" type="IDBTransaction"></param>
+ var store = idbtrans.db.createObjectStore(tableName, primKey.keyPath ? { keyPath: primKey.keyPath, autoIncrement: primKey.auto } : { autoIncrement: primKey.auto });
+ indexes.forEach(function (idx) { addIndex(store, idx); });
+ return store;
+ }
+ function createMissingTables(newSchema, idbtrans) {
+ keys(newSchema).forEach(function (tableName) {
+ if (!idbtrans.db.objectStoreNames.contains(tableName)) {
+ createTable(idbtrans, tableName, newSchema[tableName].primKey, newSchema[tableName].indexes);
+ }
+ });
+ }
+ function deleteRemovedTables(newSchema, idbtrans) {
+ for (var i = 0; i < idbtrans.db.objectStoreNames.length; ++i) {
+ var storeName = idbtrans.db.objectStoreNames[i];
+ if (newSchema[storeName] == null) {
+ idbtrans.db.deleteObjectStore(storeName);
+ }
+ }
+ }
+ function addIndex(store, idx) {
+ store.createIndex(idx.name, idx.keyPath, { unique: idx.unique, multiEntry: idx.multi });
+ }
+ //
+ //
+ // Dexie Protected API
+ //
+ //
+ this._allTables = allTables;
+ this._createTransaction = function (mode, storeNames, dbschema, parentTransaction) {
+ return new Transaction(mode, storeNames, dbschema, parentTransaction);
+ };
+ /* Generate a temporary transaction when db operations are done outside a transaction scope.
+ */
+ function tempTransaction(mode, storeNames, fn) {
+ if (!openComplete && (!PSD.letThrough)) {
+ if (!isBeingOpened) {
+ if (!autoOpen)
+ return rejection(new exceptions.DatabaseClosed());
+ db.open().catch(nop); // Open in background. If if fails, it will be catched by the final promise anyway.
+ }
+ return dbReadyPromise.then(function () { return tempTransaction(mode, storeNames, fn); });
+ }
+ else {
+ var trans = db._createTransaction(mode, storeNames, globalSchema);
+ try {
+ trans.create();
+ }
+ catch (ex) {
+ return rejection(ex);
+ }
+ return trans._promise(mode, function (resolve, reject) {
+ return newScope(function () {
+ PSD.trans = trans;
+ return fn(resolve, reject, trans);
+ });
+ }).then(function (result) {
+ // Instead of resolving value directly, wait with resolving it until transaction has completed.
+ // Otherwise the data would not be in the DB if requesting it in the then() operation.
+ // Specifically, to ensure that the following expression will work:
+ //
+ // db.friends.put({name: "Arne"}).then(function () {
+ // db.friends.where("name").equals("Arne").count(function(count) {
+ // assert (count === 1);
+ // });
+ // });
+ //
+ return trans._completion.then(function () { return result; });
+ }); /*.catch(err => { // Don't do this as of now. If would affect bulk- and modify methods in a way that could be more intuitive. But wait! Maybe change in next major.
+ trans._reject(err);
+ return rejection(err);
+ });*/
+ }
+ }
+ this._whenReady = function (fn) {
+ return openComplete || PSD.letThrough ? fn() : new Promise(function (resolve, reject) {
+ if (!isBeingOpened) {
+ if (!autoOpen) {
+ reject(new exceptions.DatabaseClosed());
+ return;
+ }
+ db.open().catch(nop); // Open in background. If if fails, it will be catched by the final promise anyway.
+ }
+ dbReadyPromise.then(resolve, reject);
+ }).then(fn);
+ };
+ //
+ //
+ //
+ //
+ // Dexie API
+ //
+ //
+ //
+ this.verno = 0;
+ this.open = function () {
+ if (isBeingOpened || idbdb)
+ return dbReadyPromise.then(function () { return dbOpenError ? rejection(dbOpenError) : db; });
+ debug && (openCanceller._stackHolder = getErrorWithStack()); // Let stacks point to when open() was called rather than where new Dexie() was called.
+ isBeingOpened = true;
+ dbOpenError = null;
+ openComplete = false;
+ // Function pointers to call when the core opening process completes.
+ var resolveDbReady = dbReadyResolve,
+ // upgradeTransaction to abort on failure.
+ upgradeTransaction = null;
+ return Promise.race([openCanceller, new Promise(function (resolve, reject) {
+ // Multiply db.verno with 10 will be needed to workaround upgrading bug in IE:
+ // IE fails when deleting objectStore after reading from it.
+ // A future version of Dexie.js will stopover an intermediate version to workaround this.
+ // At that point, we want to be backward compatible. Could have been multiplied with 2, but by using 10, it is easier to map the number to the real version number.
+ // If no API, throw!
+ if (!indexedDB)
+ throw new exceptions.MissingAPI("indexedDB API not found. If using IE10+, make sure to run your code on a server URL " +
+ "(not locally). If using old Safari versions, make sure to include indexedDB polyfill.");
+ var req = autoSchema ? indexedDB.open(dbName) : indexedDB.open(dbName, Math.round(db.verno * 10));
+ if (!req)
+ throw new exceptions.MissingAPI("IndexedDB API not available"); // May happen in Safari private mode, see https://github.com/dfahlander/Dexie.js/issues/134
+ req.onerror = eventRejectHandler(reject);
+ req.onblocked = wrap(fireOnBlocked);
+ req.onupgradeneeded = wrap(function (e) {
+ upgradeTransaction = req.transaction;
+ if (autoSchema && !db._allowEmptyDB) {
+ // Caller did not specify a version or schema. Doing that is only acceptable for opening alread existing databases.
+ // If onupgradeneeded is called it means database did not exist. Reject the open() promise and make sure that we
+ // do not create a new database by accident here.
+ req.onerror = preventDefault; // Prohibit onabort error from firing before we're done!
+ upgradeTransaction.abort(); // Abort transaction (would hope that this would make DB disappear but it doesnt.)
+ // Close database and delete it.
+ req.result.close();
+ var delreq = indexedDB.deleteDatabase(dbName); // The upgrade transaction is atomic, and javascript is single threaded - meaning that there is no risk that we delete someone elses database here!
+ delreq.onsuccess = delreq.onerror = wrap(function () {
+ reject(new exceptions.NoSuchDatabase("Database " + dbName + " doesnt exist"));
+ });
+ }
+ else {
+ upgradeTransaction.onerror = eventRejectHandler(reject);
+ var oldVer = e.oldVersion > Math.pow(2, 62) ? 0 : e.oldVersion; // Safari 8 fix.
+ runUpgraders(oldVer / 10, upgradeTransaction, reject, req);
+ }
+ }, reject);
+ req.onsuccess = wrap(function () {
+ // Core opening procedure complete. Now let's just record some stuff.
+ upgradeTransaction = null;
+ idbdb = req.result;
+ connections.push(db); // Used for emulating versionchange event on IE/Edge/Safari.
+ if (autoSchema)
+ readGlobalSchema();
+ else if (idbdb.objectStoreNames.length > 0) {
+ try {
+ adjustToExistingIndexNames(globalSchema, idbdb.transaction(safariMultiStoreFix(idbdb.objectStoreNames), READONLY));
+ }
+ catch (e) {
+ // Safari may bail out if > 1 store names. However, this shouldnt be a showstopper. Issue #120.
+ }
+ }
+ idbdb.onversionchange = wrap(function (ev) {
+ db._vcFired = true; // detect implementations that not support versionchange (IE/Edge/Safari)
+ db.on("versionchange").fire(ev);
+ });
+ if (!hasNativeGetDatabaseNames && dbName !== '__dbnames') {
+ dbNamesDB.dbnames.put({ name: dbName }).catch(nop);
+ }
+ resolve();
+ }, reject);
+ })]).then(function () {
+ // Before finally resolving the dbReadyPromise and this promise,
+ // call and await all on('ready') subscribers:
+ // Dexie.vip() makes subscribers able to use the database while being opened.
+ // This is a must since these subscribers take part of the opening procedure.
+ onReadyBeingFired = [];
+ return Promise.resolve(Dexie.vip(db.on.ready.fire)).then(function fireRemainders() {
+ if (onReadyBeingFired.length > 0) {
+ // In case additional subscribers to db.on('ready') were added during the time db.on.ready.fire was executed.
+ var remainders = onReadyBeingFired.reduce(promisableChain, nop);
+ onReadyBeingFired = [];
+ return Promise.resolve(Dexie.vip(remainders)).then(fireRemainders);
+ }
+ });
+ }).finally(function () {
+ onReadyBeingFired = null;
+ }).then(function () {
+ // Resolve the db.open() with the db instance.
+ isBeingOpened = false;
+ return db;
+ }).catch(function (err) {
+ try {
+ // Did we fail within onupgradeneeded? Make sure to abort the upgrade transaction so it doesnt commit.
+ upgradeTransaction && upgradeTransaction.abort();
+ }
+ catch (e) { }
+ isBeingOpened = false; // Set before calling db.close() so that it doesnt reject openCanceller again (leads to unhandled rejection event).
+ db.close(); // Closes and resets idbdb, removes connections, resets dbReadyPromise and openCanceller so that a later db.open() is fresh.
+ // A call to db.close() may have made on-ready subscribers fail. Use dbOpenError if set, since err could be a follow-up error on that.
+ dbOpenError = err; // Record the error. It will be used to reject further promises of db operations.
+ return rejection(dbOpenError);
+ }).finally(function () {
+ openComplete = true;
+ resolveDbReady(); // dbReadyPromise is resolved no matter if open() rejects or resolved. It's just to wake up waiters.
+ });
+ };
+ this.close = function () {
+ var idx = connections.indexOf(db);
+ if (idx >= 0)
+ connections.splice(idx, 1);
+ if (idbdb) {
+ try {
+ idbdb.close();
+ }
+ catch (e) { }
+ idbdb = null;
+ }
+ autoOpen = false;
+ dbOpenError = new exceptions.DatabaseClosed();
+ if (isBeingOpened)
+ cancelOpen(dbOpenError);
+ // Reset dbReadyPromise promise:
+ dbReadyPromise = new Promise(function (resolve) {
+ dbReadyResolve = resolve;
+ });
+ openCanceller = new Promise(function (_, reject) {
+ cancelOpen = reject;
+ });
+ };
+ this.delete = function () {
+ var hasArguments = arguments.length > 0;
+ return new Promise(function (resolve, reject) {
+ if (hasArguments)
+ throw new exceptions.InvalidArgument("Arguments not allowed in db.delete()");
+ if (isBeingOpened) {
+ dbReadyPromise.then(doDelete);
+ }
+ else {
+ doDelete();
+ }
+ function doDelete() {
+ db.close();
+ var req = indexedDB.deleteDatabase(dbName);
+ req.onsuccess = wrap(function () {
+ if (!hasNativeGetDatabaseNames) {
+ dbNamesDB.dbnames.delete(dbName).catch(nop);
+ }
+ resolve();
+ });
+ req.onerror = eventRejectHandler(reject);
+ req.onblocked = fireOnBlocked;
+ }
+ });
+ };
+ this.backendDB = function () {
+ return idbdb;
+ };
+ this.isOpen = function () {
+ return idbdb !== null;
+ };
+ this.hasBeenClosed = function () {
+ return dbOpenError && (dbOpenError instanceof exceptions.DatabaseClosed);
+ };
+ this.hasFailed = function () {
+ return dbOpenError !== null;
+ };
+ this.dynamicallyOpened = function () {
+ return autoSchema;
+ };
+ //
+ // Properties
+ //
+ this.name = dbName;
+ // db.tables - an array of all Table instances.
+ props(this, {
+ tables: {
+ get: function () {
+ /// <returns type="Array" elementType="Table" />
+ return keys(allTables).map(function (name) { return allTables[name]; });
+ }
+ }
+ });
+ //
+ // Events
+ //
+ this.on = Events(this, "populate", "blocked", "versionchange", { ready: [promisableChain, nop] });
+ this.on.ready.subscribe = override(this.on.ready.subscribe, function (subscribe) {
+ return function (subscriber, bSticky) {
+ Dexie.vip(function () {
+ if (openComplete) {
+ // Database already open. Call subscriber asap.
+ if (!dbOpenError)
+ Promise.resolve().then(subscriber);
+ // bSticky: Also subscribe to future open sucesses (after close / reopen)
+ if (bSticky)
+ subscribe(subscriber);
+ }
+ else if (onReadyBeingFired) {
+ // db.on('ready') subscribers are currently being executed and have not yet resolved or rejected
+ onReadyBeingFired.push(subscriber);
+ if (bSticky)
+ subscribe(subscriber);
+ }
+ else {
+ // Database not yet open. Subscribe to it.
+ subscribe(subscriber);
+ // If bSticky is falsy, make sure to unsubscribe subscriber when fired once.
+ if (!bSticky)
+ subscribe(function unsubscribe() {
+ db.on.ready.unsubscribe(subscriber);
+ db.on.ready.unsubscribe(unsubscribe);
+ });
+ }
+ });
+ };
+ });
+ this.transaction = function () {
+ /// <summary>
+ ///
+ /// </summary>
+ /// <param name="mode" type="String">"r" for readonly, or "rw" for readwrite</param>
+ /// <param name="tableInstances">Table instance, Array of Table instances, String or String Array of object stores to include in the transaction</param>
+ /// <param name="scopeFunc" type="Function">Function to execute with transaction</param>
+ var args = extractTransactionArgs.apply(this, arguments);
+ return this._transaction.apply(this, args);
+ };
+ function extractTransactionArgs(mode, _tableArgs_, scopeFunc) {
+ // Let table arguments be all arguments between mode and last argument.
+ var i = arguments.length;
+ if (i < 2)
+ throw new exceptions.InvalidArgument("Too few arguments");
+ // Prevent optimzation killer (https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#32-leaking-arguments)
+ // and clone arguments except the first one into local var 'args'.
+ var args = new Array(i - 1);
+ while (--i)
+ args[i - 1] = arguments[i];
+ // Let scopeFunc be the last argument and pop it so that args now only contain the table arguments.
+ scopeFunc = args.pop();
+ var tables = flatten(args); // Support using array as middle argument, or a mix of arrays and non-arrays.
+ return [mode, tables, scopeFunc];
+ }
+ this._transaction = function (mode, tables, scopeFunc) {
+ var parentTransaction = PSD.trans;
+ // Check if parent transactions is bound to this db instance, and if caller wants to reuse it
+ if (!parentTransaction || parentTransaction.db !== db || mode.indexOf('!') !== -1)
+ parentTransaction = null;
+ var onlyIfCompatible = mode.indexOf('?') !== -1;
+ mode = mode.replace('!', '').replace('?', ''); // Ok. Will change arguments[0] as well but we wont touch arguments henceforth.
+ try {
+ //
+ // Get storeNames from arguments. Either through given table instances, or through given table names.
+ //
+ var storeNames = tables.map(function (table) {
+ var storeName = table instanceof Table ? table.name : table;
+ if (typeof storeName !== 'string')
+ throw new TypeError("Invalid table argument to Dexie.transaction(). Only Table or String are allowed");
+ return storeName;
+ });
+ //
+ // Resolve mode. Allow shortcuts "r" and "rw".
+ //
+ if (mode == "r" || mode == READONLY)
+ mode = READONLY;
+ else if (mode == "rw" || mode == READWRITE)
+ mode = READWRITE;
+ else
+ throw new exceptions.InvalidArgument("Invalid transaction mode: " + mode);
+ if (parentTransaction) {
+ // Basic checks
+ if (parentTransaction.mode === READONLY && mode === READWRITE) {
+ if (onlyIfCompatible) {
+ // Spawn new transaction instead.
+ parentTransaction = null;
+ }
+ else
+ throw new exceptions.SubTransaction("Cannot enter a sub-transaction with READWRITE mode when parent transaction is READONLY");
+ }
+ if (parentTransaction) {
+ storeNames.forEach(function (storeName) {
+ if (parentTransaction && parentTransaction.storeNames.indexOf(storeName) === -1) {
+ if (onlyIfCompatible) {
+ // Spawn new transaction instead.
+ parentTransaction = null;
+ }
+ else
+ throw new exceptions.SubTransaction("Table " + storeName +
+ " not included in parent transaction.");
+ }
+ });
+ }
+ if (onlyIfCompatible && parentTransaction && !parentTransaction.active) {
+ // '?' mode should not keep using an inactive transaction.
+ parentTransaction = null;
+ }
+ }
+ }
+ catch (e) {
+ return parentTransaction ?
+ parentTransaction._promise(null, function (_, reject) { reject(e); }) :
+ rejection(e);
+ }
+ // If this is a sub-transaction, lock the parent and then launch the sub-transaction.
+ return (parentTransaction ?
+ parentTransaction._promise(mode, enterTransactionScope, "lock") :
+ PSD.trans ?
+ // no parent transaction despite PSD.trans exists. Make sure also
+ // that the zone we create is not a sub-zone of current, because
+ // Promise.follow() should not wait for it if so.
+ usePSD(PSD.transless, function () { return db._whenReady(enterTransactionScope); }) :
+ db._whenReady(enterTransactionScope));
+ function enterTransactionScope() {
+ return Promise.resolve().then(function () {
+ // Keep a pointer to last non-transactional PSD to use if someone calls Dexie.ignoreTransaction().
+ var transless = PSD.transless || PSD;
+ // Our transaction.
+ //return new Promise((resolve, reject) => {
+ var trans = db._createTransaction(mode, storeNames, globalSchema, parentTransaction);
+ // Let the transaction instance be part of a Promise-specific data (PSD) value.
+ var zoneProps = {
+ trans: trans,
+ transless: transless
+ };
+ if (parentTransaction) {
+ // Emulate transaction commit awareness for inner transaction (must 'commit' when the inner transaction has no more operations ongoing)
+ trans.idbtrans = parentTransaction.idbtrans;
+ }
+ else {
+ trans.create(); // Create the backend transaction so that complete() or error() will trigger even if no operation is made upon it.
+ }
+ // Support for native async await.
+ if (scopeFunc.constructor === AsyncFunction) {
+ incrementExpectedAwaits();
+ }
+ var returnValue;
+ var promiseFollowed = Promise.follow(function () {
+ // Finally, call the scope function with our table and transaction arguments.
+ returnValue = scopeFunc.call(trans, trans);
+ if (returnValue) {
+ if (returnValue.constructor === NativePromise) {
+ var decrementor = decrementExpectedAwaits.bind(null, null);
+ returnValue.then(decrementor, decrementor);
+ }
+ else if (typeof returnValue.next === 'function' && typeof returnValue.throw === 'function') {
+ // scopeFunc returned an iterator with throw-support. Handle yield as await.
+ returnValue = awaitIterator(returnValue);
+ }
+ }
+ }, zoneProps);
+ return (returnValue && typeof returnValue.then === 'function' ?
+ // Promise returned. User uses promise-style transactions.
+ Promise.resolve(returnValue).then(function (x) { return trans.active ?
+ x // Transaction still active. Continue.
+ : rejection(new exceptions.PrematureCommit("Transaction committed too early. See http://bit.ly/2kdckMn")); })
+ // No promise returned. Wait for all outstanding promises before continuing.
+ : promiseFollowed.then(function () { return returnValue; })).then(function (x) {
+ // sub transactions don't react to idbtrans.oncomplete. We must trigger a completion:
+ if (parentTransaction)
+ trans._resolve();
+ // wait for trans._completion
+ // (if root transaction, this means 'complete' event. If sub-transaction, we've just fired it ourselves)
+ return trans._completion.then(function () { return x; });
+ }).catch(function (e) {
+ trans._reject(e); // Yes, above then-handler were maybe not called because of an unhandled rejection in scopeFunc!
+ return rejection(e);
+ });
+ });
+ }
+ };
+ this.table = function (tableName) {
+ /// <returns type="Table"></returns>
+ if (!hasOwn(allTables, tableName)) {
+ throw new exceptions.InvalidTable("Table " + tableName + " does not exist");
+ }
+ return allTables[tableName];
+ };
+ //
+ //
+ //
+ // Table Class
+ //
+ //
+ //
+ function Table(name, tableSchema, optionalTrans) {
+ /// <param name="name" type="String"></param>
+ this.name = name;
+ this.schema = tableSchema;
+ this._tx = optionalTrans;
+ this.hook = allTables[name] ? allTables[name].hook : Events(null, {
+ "creating": [hookCreatingChain, nop],
+ "reading": [pureFunctionChain, mirror],
+ "updating": [hookUpdatingChain, nop],
+ "deleting": [hookDeletingChain, nop]
+ });
+ }
+ function BulkErrorHandlerCatchAll(errorList, done, supportHooks) {
+ return (supportHooks ? hookedEventRejectHandler : eventRejectHandler)(function (e) {
+ errorList.push(e);
+ done && done();
+ });
+ }
+ function bulkDelete(idbstore, trans, keysOrTuples, hasDeleteHook, deletingHook) {
+ // If hasDeleteHook, keysOrTuples must be an array of tuples: [[key1, value2],[key2,value2],...],
+ // else keysOrTuples must be just an array of keys: [key1, key2, ...].
+ return new Promise(function (resolve, reject) {
+ var len = keysOrTuples.length, lastItem = len - 1;
+ if (len === 0)
+ return resolve();
+ if (!hasDeleteHook) {
+ for (var i = 0; i < len; ++i) {
+ var req = idbstore.delete(keysOrTuples[i]);
+ req.onerror = eventRejectHandler(reject);
+ if (i === lastItem)
+ req.onsuccess = wrap(function () { return resolve(); });
+ }
+ }
+ else {
+ var hookCtx, errorHandler = hookedEventRejectHandler(reject), successHandler = hookedEventSuccessHandler(null);
+ tryCatch(function () {
+ for (var i = 0; i < len; ++i) {
+ hookCtx = { onsuccess: null, onerror: null };
+ var tuple = keysOrTuples[i];
+ deletingHook.call(hookCtx, tuple[0], tuple[1], trans);
+ var req = idbstore.delete(tuple[0]);
+ req._hookCtx = hookCtx;
+ req.onerror = errorHandler;
+ if (i === lastItem)
+ req.onsuccess = hookedEventSuccessHandler(resolve);
+ else
+ req.onsuccess = successHandler;
+ }
+ }, function (err) {
+ hookCtx.onerror && hookCtx.onerror(err);
+ throw err;
+ });
+ }
+ });
+ }
+ props(Table.prototype, {
+ //
+ // Table Protected Methods
+ //
+ _trans: function getTransaction(mode, fn, writeLocked) {
+ var trans = this._tx || PSD.trans;
+ return trans && trans.db === db ?
+ trans === PSD.trans ?
+ trans._promise(mode, fn, writeLocked) :
+ newScope(function () { return trans._promise(mode, fn, writeLocked); }, { trans: trans, transless: PSD.transless || PSD }) :
+ tempTransaction(mode, [this.name], fn);
+ },
+ _idbstore: function getIDBObjectStore(mode, fn, writeLocked) {
+ var tableName = this.name;
+ function supplyIdbStore(resolve, reject, trans) {
+ if (trans.storeNames.indexOf(tableName) === -1)
+ throw new exceptions.NotFound("Table" + tableName + " not part of transaction");
+ return fn(resolve, reject, trans.idbtrans.objectStore(tableName), trans);
+ }
+ return this._trans(mode, supplyIdbStore, writeLocked);
+ },
+ //
+ // Table Public Methods
+ //
+ get: function (keyOrCrit, cb) {
+ if (keyOrCrit && keyOrCrit.constructor === Object)
+ return this.where(keyOrCrit).first(cb);
+ var self = this;
+ return this._idbstore(READONLY, function (resolve, reject, idbstore) {
+ var req = idbstore.get(keyOrCrit);
+ req.onerror = eventRejectHandler(reject);
+ req.onsuccess = wrap(function () {
+ resolve(self.hook.reading.fire(req.result));
+ }, reject);
+ }).then(cb);
+ },
+ where: function (indexOrCrit) {
+ if (typeof indexOrCrit === 'string')
+ return new WhereClause(this, indexOrCrit);
+ if (isArray(indexOrCrit))
+ return new WhereClause(this, "[" + indexOrCrit.join('+') + "]");
+ // indexOrCrit is an object map of {[keyPath]:value}
+ var keyPaths = keys(indexOrCrit);
+ if (keyPaths.length === 1)
+ // Only one critera. This was the easy case:
+ return this
+ .where(keyPaths[0])
+ .equals(indexOrCrit[keyPaths[0]]);
+ // Multiple criterias.
+ // Let's try finding a compound index that matches all keyPaths in
+ // arbritary order:
+ var compoundIndex = this.schema.indexes.concat(this.schema.primKey).filter(function (ix) {
+ return ix.compound &&
+ keyPaths.every(function (keyPath) { return ix.keyPath.indexOf(keyPath) >= 0; }) &&
+ ix.keyPath.every(function (keyPath) { return keyPaths.indexOf(keyPath) >= 0; });
+ })[0];
+ if (compoundIndex && maxKey !== maxString)
+ // Cool! We found such compound index
+ // and this browser supports compound indexes (maxKey !== maxString)!
+ return this
+ .where(compoundIndex.name)
+ .equals(compoundIndex.keyPath.map(function (kp) { return indexOrCrit[kp]; }));
+ if (!compoundIndex)
+ console.warn("The query " + JSON.stringify(indexOrCrit) + " on " + this.name + " would benefit of a " +
+ ("compound index [" + keyPaths.join('+') + "]"));
+ // Ok, now let's fallback to finding at least one matching index
+ // and filter the rest.
+ var idxByName = this.schema.idxByName;
+ var simpleIndex = keyPaths.reduce(function (r, keyPath) { return [
+ r[0] || idxByName[keyPath],
+ r[0] || !idxByName[keyPath] ?
+ combine(r[1], function (x) { return '' + getByKeyPath(x, keyPath) ==
+ '' + indexOrCrit[keyPath]; })
+ : r[1]
+ ]; }, [null, null]);
+ var idx = simpleIndex[0];
+ return idx ?
+ this.where(idx.name).equals(indexOrCrit[idx.keyPath])
+ .filter(simpleIndex[1]) :
+ compoundIndex ?
+ this.filter(simpleIndex[1]) : // Has compound but browser bad. Allow filter.
+ this.where(keyPaths).equals(''); // No index at all. Fail lazily.
+ },
+ count: function (cb) {
+ return this.toCollection().count(cb);
+ },
+ offset: function (offset) {
+ return this.toCollection().offset(offset);
+ },
+ limit: function (numRows) {
+ return this.toCollection().limit(numRows);
+ },
+ reverse: function () {
+ return this.toCollection().reverse();
+ },
+ filter: function (filterFunction) {
+ return this.toCollection().and(filterFunction);
+ },
+ each: function (fn) {
+ return this.toCollection().each(fn);
+ },
+ toArray: function (cb) {
+ return this.toCollection().toArray(cb);
+ },
+ orderBy: function (index) {
+ return new Collection(new WhereClause(this, isArray(index) ?
+ "[" + index.join('+') + "]" :
+ index));
+ },
+ toCollection: function () {
+ return new Collection(new WhereClause(this));
+ },
+ mapToClass: function (constructor, structure) {
+ /// <summary>
+ /// Map table to a javascript constructor function. Objects returned from the database will be instances of this class, making
+ /// it possible to the instanceOf operator as well as extending the class using constructor.prototype.method = function(){...}.
+ /// </summary>
+ /// <param name="constructor">Constructor function representing the class.</param>
+ /// <param name="structure" optional="true">Helps IDE code completion by knowing the members that objects contain and not just the indexes. Also
+ /// know what type each member has. Example: {name: String, emailAddresses: [String], password}</param>
+ this.schema.mappedClass = constructor;
+ var instanceTemplate = Object.create(constructor.prototype);
+ if (structure) {
+ // structure and instanceTemplate is for IDE code competion only while constructor.prototype is for actual inheritance.
+ applyStructure(instanceTemplate, structure);
+ }
+ this.schema.instanceTemplate = instanceTemplate;
+ // Now, subscribe to the when("reading") event to make all objects that come out from this table inherit from given class
+ // no matter which method to use for reading (Table.get() or Table.where(...)... )
+ var readHook = function (obj) {
+ if (!obj)
+ return obj; // No valid object. (Value is null). Return as is.
+ // Create a new object that derives from constructor:
+ var res = Object.create(constructor.prototype);
+ // Clone members:
+ for (var m in obj)
+ if (hasOwn(obj, m))
+ try {
+ res[m] = obj[m];
+ }
+ catch (_) { }
+ return res;
+ };
+ if (this.schema.readHook) {
+ this.hook.reading.unsubscribe(this.schema.readHook);
+ }
+ this.schema.readHook = readHook;
+ this.hook("reading", readHook);
+ return constructor;
+ },
+ defineClass: function (structure) {
+ /// <summary>
+ /// Define all members of the class that represents the table. This will help code completion of when objects are read from the database
+ /// as well as making it possible to extend the prototype of the returned constructor function.
+ /// </summary>
+ /// <param name="structure">Helps IDE code completion by knowing the members that objects contain and not just the indexes. Also
+ /// know what type each member has. Example: {name: String, emailAddresses: [String], properties: {shoeSize: Number}}</param>
+ return this.mapToClass(Dexie.defineClass(structure), structure);
+ },
+ bulkDelete: function (keys$$1) {
+ if (this.hook.deleting.fire === nop) {
+ return this._idbstore(READWRITE, function (resolve, reject, idbstore, trans) {
+ resolve(bulkDelete(idbstore, trans, keys$$1, false, nop));
+ });
+ }
+ else {
+ return this
+ .where(':id')
+ .anyOf(keys$$1)
+ .delete()
+ .then(function () { }); // Resolve with undefined.
+ }
+ },
+ bulkPut: function (objects, keys$$1) {
+ var _this = this;
+ return this._idbstore(READWRITE, function (resolve, reject, idbstore) {
+ if (!idbstore.keyPath && !_this.schema.primKey.auto && !keys$$1)
+ throw new exceptions.InvalidArgument("bulkPut() with non-inbound keys requires keys array in second argument");
+ if (idbstore.keyPath && keys$$1)
+ throw new exceptions.InvalidArgument("bulkPut(): keys argument invalid on tables with inbound keys");
+ if (keys$$1 && keys$$1.length !== objects.length)
+ throw new exceptions.InvalidArgument("Arguments objects and keys must have the same length");
+ if (objects.length === 0)
+ return resolve(); // Caller provided empty list.
+ var done = function (result) {
+ if (errorList.length === 0)
+ resolve(result);
+ else
+ reject(new BulkError(_this.name + ".bulkPut(): " + errorList.length + " of " + numObjs + " operations failed", errorList));
+ };
+ var req, errorList = [], errorHandler, numObjs = objects.length, table = _this;
+ if (_this.hook.creating.fire === nop && _this.hook.updating.fire === nop) {
+ //
+ // Standard Bulk (no 'creating' or 'updating' hooks to care about)
+ //
+ errorHandler = BulkErrorHandlerCatchAll(errorList);
+ for (var i = 0, l = objects.length; i < l; ++i) {
+ req = keys$$1 ? idbstore.put(objects[i], keys$$1[i]) : idbstore.put(objects[i]);
+ req.onerror = errorHandler;
+ }
+ // Only need to catch success or error on the last operation
+ // according to the IDB spec.
+ req.onerror = BulkErrorHandlerCatchAll(errorList, done);
+ req.onsuccess = eventSuccessHandler(done);
+ }
+ else {
+ var effectiveKeys = keys$$1 || idbstore.keyPath && objects.map(function (o) { return getByKeyPath(o, idbstore.keyPath); });
+ // Generate map of {[key]: object}
+ var objectLookup = effectiveKeys && arrayToObject(effectiveKeys, function (key, i) { return key != null && [key, objects[i]]; });
+ var promise = !effectiveKeys ?
+ // Auto-incremented key-less objects only without any keys argument.
+ table.bulkAdd(objects) :
+ // Keys provided. Either as inbound in provided objects, or as a keys argument.
+ // Begin with updating those that exists in DB:
+ table.where(':id').anyOf(effectiveKeys.filter(function (key) { return key != null; })).modify(function () {
+ this.value = objectLookup[this.primKey];
+ objectLookup[this.primKey] = null; // Mark as "don't add this"
+ }).catch(ModifyError, function (e) {
+ errorList = e.failures; // No need to concat here. These are the first errors added.
+ }).then(function () {
+ // Now, let's examine which items didnt exist so we can add them:
+ var objsToAdd = [], keysToAdd = keys$$1 && [];
+ // Iterate backwards. Why? Because if same key was used twice, just add the last one.
+ for (var i = effectiveKeys.length - 1; i >= 0; --i) {
+ var key = effectiveKeys[i];
+ if (key == null || objectLookup[key]) {
+ objsToAdd.push(objects[i]);
+ keys$$1 && keysToAdd.push(key);
+ if (key != null)
+ objectLookup[key] = null; // Mark as "dont add again"
+ }
+ }
+ // The items are in reverse order so reverse them before adding.
+ // Could be important in order to get auto-incremented keys the way the caller
+ // would expect. Could have used unshift instead of push()/reverse(),
+ // but: http://jsperf.com/unshift-vs-reverse
+ objsToAdd.reverse();
+ keys$$1 && keysToAdd.reverse();
+ return table.bulkAdd(objsToAdd, keysToAdd);
+ }).then(function (lastAddedKey) {
+ // Resolve with key of the last object in given arguments to bulkPut():
+ var lastEffectiveKey = effectiveKeys[effectiveKeys.length - 1]; // Key was provided.
+ return lastEffectiveKey != null ? lastEffectiveKey : lastAddedKey;
+ });
+ promise.then(done).catch(BulkError, function (e) {
+ // Concat failure from ModifyError and reject using our 'done' method.
+ errorList = errorList.concat(e.failures);
+ done();
+ }).catch(reject);
+ }
+ }, "locked"); // If called from transaction scope, lock transaction til all steps are done.
+ },
+ bulkAdd: function (objects, keys$$1) {
+ var self = this, creatingHook = this.hook.creating.fire;
+ return this._idbstore(READWRITE, function (resolve, reject, idbstore, trans) {
+ if (!idbstore.keyPath && !self.schema.primKey.auto && !keys$$1)
+ throw new exceptions.InvalidArgument("bulkAdd() with non-inbound keys requires keys array in second argument");
+ if (idbstore.keyPath && keys$$1)
+ throw new exceptions.InvalidArgument("bulkAdd(): keys argument invalid on tables with inbound keys");
+ if (keys$$1 && keys$$1.length !== objects.length)
+ throw new exceptions.InvalidArgument("Arguments objects and keys must have the same length");
+ if (objects.length === 0)
+ return resolve(); // Caller provided empty list.
+ function done(result) {
+ if (errorList.length === 0)
+ resolve(result);
+ else
+ reject(new BulkError(self.name + ".bulkAdd(): " + errorList.length + " of " + numObjs + " operations failed", errorList));
+ }
+ var req, errorList = [], errorHandler, successHandler, numObjs = objects.length;
+ if (creatingHook !== nop) {
+ //
+ // There are subscribers to hook('creating')
+ // Must behave as documented.
+ //
+ var keyPath = idbstore.keyPath, hookCtx;
+ errorHandler = BulkErrorHandlerCatchAll(errorList, null, true);
+ successHandler = hookedEventSuccessHandler(null);
+ tryCatch(function () {
+ for (var i = 0, l = objects.length; i < l; ++i) {
+ hookCtx = { onerror: null, onsuccess: null };
+ var key = keys$$1 && keys$$1[i];
+ var obj = objects[i], effectiveKey = keys$$1 ? key : keyPath ? getByKeyPath(obj, keyPath) : undefined, keyToUse = creatingHook.call(hookCtx, effectiveKey, obj, trans);
+ if (effectiveKey == null && keyToUse != null) {
+ if (keyPath) {
+ obj = deepClone(obj);
+ setByKeyPath(obj, keyPath, keyToUse);
+ }
+ else {
+ key = keyToUse;
+ }
+ }
+ req = key != null ? idbstore.add(obj, key) : idbstore.add(obj);
+ req._hookCtx = hookCtx;
+ if (i < l - 1) {
+ req.onerror = errorHandler;
+ if (hookCtx.onsuccess)
+ req.onsuccess = successHandler;
+ }
+ }
+ }, function (err) {
+ hookCtx.onerror && hookCtx.onerror(err);
+ throw err;
+ });
+ req.onerror = BulkErrorHandlerCatchAll(errorList, done, true);
+ req.onsuccess = hookedEventSuccessHandler(done);
+ }
+ else {
+ //
+ // Standard Bulk (no 'creating' hook to care about)
+ //
+ errorHandler = BulkErrorHandlerCatchAll(errorList);
+ for (var i = 0, l = objects.length; i < l; ++i) {
+ req = keys$$1 ? idbstore.add(objects[i], keys$$1[i]) : idbstore.add(objects[i]);
+ req.onerror = errorHandler;
+ }
+ // Only need to catch success or error on the last operation
+ // according to the IDB spec.
+ req.onerror = BulkErrorHandlerCatchAll(errorList, done);
+ req.onsuccess = eventSuccessHandler(done);
+ }
+ });
+ },
+ add: function (obj, key) {
+ /// <summary>
+ /// Add an object to the database. In case an object with same primary key already exists, the object will not be added.
+ /// </summary>
+ /// <param name="obj" type="Object">A javascript object to insert</param>
+ /// <param name="key" optional="true">Primary key</param>
+ var creatingHook = this.hook.creating.fire;
+ return this._idbstore(READWRITE, function (resolve, reject, idbstore, trans) {
+ var hookCtx = { onsuccess: null, onerror: null };
+ if (creatingHook !== nop) {
+ var effectiveKey = (key != null) ? key : (idbstore.keyPath ? getByKeyPath(obj, idbstore.keyPath) : undefined);
+ var keyToUse = creatingHook.call(hookCtx, effectiveKey, obj, trans); // Allow subscribers to when("creating") to generate the key.
+ if (effectiveKey == null && keyToUse != null) {
+ if (idbstore.keyPath)
+ setByKeyPath(obj, idbstore.keyPath, keyToUse);
+ else
+ key = keyToUse;
+ }
+ }
+ try {
+ var req = key != null ? idbstore.add(obj, key) : idbstore.add(obj);
+ req._hookCtx = hookCtx;
+ req.onerror = hookedEventRejectHandler(reject);
+ req.onsuccess = hookedEventSuccessHandler(function (result) {
+ // TODO: Remove these two lines in next major release (2.0?)
+ // It's no good practice to have side effects on provided parameters
+ var keyPath = idbstore.keyPath;
+ if (keyPath)
+ setByKeyPath(obj, keyPath, result);
+ resolve(result);
+ });
+ }
+ catch (e) {
+ if (hookCtx.onerror)
+ hookCtx.onerror(e);
+ throw e;
+ }
+ });
+ },
+ put: function (obj, key) {
+ var _this = this;
+ /// <summary>
+ /// Add an object to the database but in case an object with same primary key alread exists, the existing one will get updated.
+ /// </summary>
+ /// <param name="obj" type="Object">A javascript object to insert or update</param>
+ /// <param name="key" optional="true">Primary key</param>
+ var creatingHook = this.hook.creating.fire, updatingHook = this.hook.updating.fire;
+ if (creatingHook !== nop || updatingHook !== nop) {
+ //
+ // People listens to when("creating") or when("updating") events!
+ // We must know whether the put operation results in an CREATE or UPDATE.
+ //
+ var keyPath = this.schema.primKey.keyPath;
+ var effectiveKey = (key !== undefined) ? key : (keyPath && getByKeyPath(obj, keyPath));
+ if (effectiveKey == null)
+ return this.add(obj);
+ // Since key is optional, make sure we get it from obj if not provided
+ // Primary key exist. Lock transaction and try modifying existing. If nothing modified, call add().
+ // clone obj before this async call. If caller modifies obj the line after put(), the IDB spec requires that it should not affect operation.
+ obj = deepClone(obj);
+ return this._trans(READWRITE, function () {
+ return _this.where(":id").equals(effectiveKey).modify(function () {
+ // Replace extisting value with our object
+ // CRUD event firing handled in Collection.modify()
+ this.value = obj;
+ }).then(function (count) { return count === 0 ? _this.add(obj, key) : effectiveKey; });
+ }, "locked"); // Lock needed because operation is splitted into modify() and add().
+ }
+ else {
+ // Use the standard IDB put() method.
+ return this._idbstore(READWRITE, function (resolve, reject, idbstore) {
+ var req = key !== undefined ? idbstore.put(obj, key) : idbstore.put(obj);
+ req.onerror = eventRejectHandler(reject);
+ req.onsuccess = wrap(function (ev) {
+ var keyPath = idbstore.keyPath;
+ if (keyPath)
+ setByKeyPath(obj, keyPath, ev.target.result);
+ resolve(req.result);
+ });
+ });
+ }
+ },
+ 'delete': function (key) {
+ /// <param name="key">Primary key of the object to delete</param>
+ if (this.hook.deleting.subscribers.length) {
+ // People listens to when("deleting") event. Must implement delete using Collection.delete() that will
+ // call the CRUD event. Only Collection.delete() will know whether an object was actually deleted.
+ return this.where(":id").equals(key).delete();
+ }
+ else {
+ // No one listens. Use standard IDB delete() method.
+ return this._idbstore(READWRITE, function (resolve, reject, idbstore) {
+ var req = idbstore.delete(key);
+ req.onerror = eventRejectHandler(reject);
+ req.onsuccess = wrap(function () {
+ resolve(req.result);
+ });
+ });
+ }
+ },
+ clear: function () {
+ if (this.hook.deleting.subscribers.length) {
+ // People listens to when("deleting") event. Must implement delete using Collection.delete() that will
+ // call the CRUD event. Only Collection.delete() will knows which objects that are actually deleted.
+ return this.toCollection().delete();
+ }
+ else {
+ return this._idbstore(READWRITE, function (resolve, reject, idbstore) {
+ var req = idbstore.clear();
+ req.onerror = eventRejectHandler(reject);
+ req.onsuccess = wrap(function () {
+ resolve(req.result);
+ });
+ });
+ }
+ },
+ update: function (keyOrObject, modifications) {
+ if (typeof modifications !== 'object' || isArray(modifications))
+ throw new exceptions.InvalidArgument("Modifications must be an object.");
+ if (typeof keyOrObject === 'object' && !isArray(keyOrObject)) {
+ // object to modify. Also modify given object with the modifications:
+ keys(modifications).forEach(function (keyPath) {
+ setByKeyPath(keyOrObject, keyPath, modifications[keyPath]);
+ });
+ var key = getByKeyPath(keyOrObject, this.schema.primKey.keyPath);
+ if (key === undefined)
+ return rejection(new exceptions.InvalidArgument("Given object does not contain its primary key"));
+ return this.where(":id").equals(key).modify(modifications);
+ }
+ else {
+ // key to modify
+ return this.where(":id").equals(keyOrObject).modify(modifications);
+ }
+ }
+ });
+ //
+ //
+ //
+ // Transaction Class
+ //
+ //
+ //
+ function Transaction(mode, storeNames, dbschema, parent) {
+ var _this = this;
+ /// <summary>
+ /// Transaction class. Represents a database transaction. All operations on db goes through a Transaction.
+ /// </summary>
+ /// <param name="mode" type="String">Any of "readwrite" or "readonly"</param>
+ /// <param name="storeNames" type="Array">Array of table names to operate on</param>
+ this.db = db;
+ this.mode = mode;
+ this.storeNames = storeNames;
+ this.idbtrans = null;
+ this.on = Events(this, "complete", "error", "abort");
+ this.parent = parent || null;
+ this.active = true;
+ this._reculock = 0;
+ this._blockedFuncs = [];
+ this._resolve = null;
+ this._reject = null;
+ this._waitingFor = null;
+ this._waitingQueue = null;
+ this._spinCount = 0; // Just for debugging waitFor()
+ this._completion = new Promise(function (resolve, reject) {
+ _this._resolve = resolve;
+ _this._reject = reject;
+ });
+ this._completion.then(function () {
+ _this.active = false;
+ _this.on.complete.fire();
+ }, function (e) {
+ var wasActive = _this.active;
+ _this.active = false;
+ _this.on.error.fire(e);
+ _this.parent ?
+ _this.parent._reject(e) :
+ wasActive && _this.idbtrans && _this.idbtrans.abort();
+ return rejection(e); // Indicate we actually DO NOT catch this error.
+ });
+ }
+ props(Transaction.prototype, {
+ //
+ // Transaction Protected Methods (not required by API users, but needed internally and eventually by dexie extensions)
+ //
+ _lock: function () {
+ assert(!PSD.global); // Locking and unlocking reuires to be within a PSD scope.
+ // Temporary set all requests into a pending queue if they are called before database is ready.
+ ++this._reculock; // Recursive read/write lock pattern using PSD (Promise Specific Data) instead of TLS (Thread Local Storage)
+ if (this._reculock === 1 && !PSD.global)
+ PSD.lockOwnerFor = this;
+ return this;
+ },
+ _unlock: function () {
+ assert(!PSD.global); // Locking and unlocking reuires to be within a PSD scope.
+ if (--this._reculock === 0) {
+ if (!PSD.global)
+ PSD.lockOwnerFor = null;
+ while (this._blockedFuncs.length > 0 && !this._locked()) {
+ var fnAndPSD = this._blockedFuncs.shift();
+ try {
+ usePSD(fnAndPSD[1], fnAndPSD[0]);
+ }
+ catch (e) { }
+ }
+ }
+ return this;
+ },
+ _locked: function () {
+ // Checks if any write-lock is applied on this transaction.
+ // To simplify the Dexie API for extension implementations, we support recursive locks.
+ // This is accomplished by using "Promise Specific Data" (PSD).
+ // PSD data is bound to a Promise and any child Promise emitted through then() or resolve( new Promise() ).
+ // PSD is local to code executing on top of the call stacks of any of any code executed by Promise():
+ // * callback given to the Promise() constructor (function (resolve, reject){...})
+ // * callbacks given to then()/catch()/finally() methods (function (value){...})
+ // If creating a new independant Promise instance from within a Promise call stack, the new Promise will derive the PSD from the call stack of the parent Promise.
+ // Derivation is done so that the inner PSD __proto__ points to the outer PSD.
+ // PSD.lockOwnerFor will point to current transaction object if the currently executing PSD scope owns the lock.
+ return this._reculock && PSD.lockOwnerFor !== this;
+ },
+ create: function (idbtrans) {
+ var _this = this;
+ if (!this.mode)
+ return this;
+ assert(!this.idbtrans);
+ if (!idbtrans && !idbdb) {
+ switch (dbOpenError && dbOpenError.name) {
+ case "DatabaseClosedError":
+ // Errors where it is no difference whether it was caused by the user operation or an earlier call to db.open()
+ throw new exceptions.DatabaseClosed(dbOpenError);
+ case "MissingAPIError":
+ // Errors where it is no difference whether it was caused by the user operation or an earlier call to db.open()
+ throw new exceptions.MissingAPI(dbOpenError.message, dbOpenError);
+ default:
+ // Make it clear that the user operation was not what caused the error - the error had occurred earlier on db.open()!
+ throw new exceptions.OpenFailed(dbOpenError);
+ }
+ }
+ if (!this.active)
+ throw new exceptions.TransactionInactive();
+ assert(this._completion._state === null);
+ idbtrans = this.idbtrans = idbtrans || idbdb.transaction(safariMultiStoreFix(this.storeNames), this.mode);
+ idbtrans.onerror = wrap(function (ev) {
+ preventDefault(ev); // Prohibit default bubbling to window.error
+ _this._reject(idbtrans.error);
+ });
+ idbtrans.onabort = wrap(function (ev) {
+ preventDefault(ev);
+ _this.active && _this._reject(new exceptions.Abort(idbtrans.error));
+ _this.active = false;
+ _this.on("abort").fire(ev);
+ });
+ idbtrans.oncomplete = wrap(function () {
+ _this.active = false;
+ _this._resolve();
+ });
+ return this;
+ },
+ _promise: function (mode, fn, bWriteLock) {
+ var _this = this;
+ if (mode === READWRITE && this.mode !== READWRITE)
+ return rejection(new exceptions.ReadOnly("Transaction is readonly"));
+ if (!this.active)
+ return rejection(new exceptions.TransactionInactive());
+ if (this._locked()) {
+ return new Promise(function (resolve, reject) {
+ _this._blockedFuncs.push([function () {
+ _this._promise(mode, fn, bWriteLock).then(resolve, reject);
+ }, PSD]);
+ });
+ }
+ else if (bWriteLock) {
+ return newScope(function () {
+ var p = new Promise(function (resolve, reject) {
+ _this._lock();
+ var rv = fn(resolve, reject, _this);
+ if (rv && rv.then)
+ rv.then(resolve, reject);
+ });
+ p.finally(function () { return _this._unlock(); });
+ p._lib = true;
+ return p;
+ });
+ }
+ else {
+ var p = new Promise(function (resolve, reject) {
+ var rv = fn(resolve, reject, _this);
+ if (rv && rv.then)
+ rv.then(resolve, reject);
+ });
+ p._lib = true;
+ return p;
+ }
+ },
+ _root: function () {
+ return this.parent ? this.parent._root() : this;
+ },
+ waitFor: function (promise) {
+ // Always operate on the root transaction (in case this is a sub stransaction)
+ var root = this._root();
+ // For stability reasons, convert parameter to promise no matter what type is passed to waitFor().
+ // (We must be able to call .then() on it.)
+ promise = Promise.resolve(promise);
+ if (root._waitingFor) {
+ // Already called waitFor(). Wait for both to complete.
+ root._waitingFor = root._waitingFor.then(function () { return promise; });
+ }
+ else {
+ // We're not in waiting state. Start waiting state.
+ root._waitingFor = promise;
+ root._waitingQueue = [];
+ // Start interacting with indexedDB until promise completes:
+ var store = root.idbtrans.objectStore(root.storeNames[0]);
+ (function spin() {
+ ++root._spinCount; // For debugging only
+ while (root._waitingQueue.length)
+ (root._waitingQueue.shift())();
+ if (root._waitingFor)
+ store.get(-Infinity).onsuccess = spin;
+ }());
+ }
+ var currentWaitPromise = root._waitingFor;
+ return new Promise(function (resolve, reject) {
+ promise.then(function (res) { return root._waitingQueue.push(wrap(resolve.bind(null, res))); }, function (err) { return root._waitingQueue.push(wrap(reject.bind(null, err))); }).finally(function () {
+ if (root._waitingFor === currentWaitPromise) {
+ // No one added a wait after us. Safe to stop the spinning.
+ root._waitingFor = null;
+ }
+ });
+ });
+ },
+ //
+ // Transaction Public Properties and Methods
+ //
+ abort: function () {
+ this.active && this._reject(new exceptions.Abort());
+ this.active = false;
+ },
+ tables: {
+ get: deprecated("Transaction.tables", function () { return allTables; })
+ },
+ table: function (name) {
+ var table = db.table(name); // Don't check that table is part of transaction. It must fail lazily!
+ return new Table(name, table.schema, this);
+ }
+ });
+ //
+ //
+ //
+ // WhereClause
+ //
+ //
+ //
+ function WhereClause(table, index, orCollection) {
+ /// <param name="table" type="Table"></param>
+ /// <param name="index" type="String" optional="true"></param>
+ /// <param name="orCollection" type="Collection" optional="true"></param>
+ this._ctx = {
+ table: table,
+ index: index === ":id" ? null : index,
+ or: orCollection
+ };
+ }
+ props(WhereClause.prototype, function () {
+ // WhereClause private methods
+ function fail(collectionOrWhereClause, err, T) {
+ var collection = collectionOrWhereClause instanceof WhereClause ?
+ new Collection(collectionOrWhereClause) :
+ collectionOrWhereClause;
+ collection._ctx.error = T ? new T(err) : new TypeError(err);
+ return collection;
+ }
+ function emptyCollection(whereClause) {
+ return new Collection(whereClause, function () { return IDBKeyRange.only(""); }).limit(0);
+ }
+ function upperFactory(dir) {
+ return dir === "next" ? function (s) { return s.toUpperCase(); } : function (s) { return s.toLowerCase(); };
+ }
+ function lowerFactory(dir) {
+ return dir === "next" ? function (s) { return s.toLowerCase(); } : function (s) { return s.toUpperCase(); };
+ }
+ function nextCasing(key, lowerKey, upperNeedle, lowerNeedle, cmp, dir) {
+ var length = Math.min(key.length, lowerNeedle.length);
+ var llp = -1;
+ for (var i = 0; i < length; ++i) {
+ var lwrKeyChar = lowerKey[i];
+ if (lwrKeyChar !== lowerNeedle[i]) {
+ if (cmp(key[i], upperNeedle[i]) < 0)
+ return key.substr(0, i) + upperNeedle[i] + upperNeedle.substr(i + 1);
+ if (cmp(key[i], lowerNeedle[i]) < 0)
+ return key.substr(0, i) + lowerNeedle[i] + upperNeedle.substr(i + 1);
+ if (llp >= 0)
+ return key.substr(0, llp) + lowerKey[llp] + upperNeedle.substr(llp + 1);
+ return null;
+ }
+ if (cmp(key[i], lwrKeyChar) < 0)
+ llp = i;
+ }
+ if (length < lowerNeedle.length && dir === "next")
+ return key + upperNeedle.substr(key.length);
+ if (length < key.length && dir === "prev")
+ return key.substr(0, upperNeedle.length);
+ return (llp < 0 ? null : key.substr(0, llp) + lowerNeedle[llp] + upperNeedle.substr(llp + 1));
+ }
+ function addIgnoreCaseAlgorithm(whereClause, match, needles, suffix) {
+ /// <param name="needles" type="Array" elementType="String"></param>
+ var upper, lower, compare, upperNeedles, lowerNeedles, direction, nextKeySuffix, needlesLen = needles.length;
+ if (!needles.every(function (s) { return typeof s === 'string'; })) {
+ return fail(whereClause, STRING_EXPECTED);
+ }
+ function initDirection(dir) {
+ upper = upperFactory(dir);
+ lower = lowerFactory(dir);
+ compare = (dir === "next" ? simpleCompare : simpleCompareReverse);
+ var needleBounds = needles.map(function (needle) {
+ return { lower: lower(needle), upper: upper(needle) };
+ }).sort(function (a, b) {
+ return compare(a.lower, b.lower);
+ });
+ upperNeedles = needleBounds.map(function (nb) { return nb.upper; });
+ lowerNeedles = needleBounds.map(function (nb) { return nb.lower; });
+ direction = dir;
+ nextKeySuffix = (dir === "next" ? "" : suffix);
+ }
+ initDirection("next");
+ var c = new Collection(whereClause, function () {
+ return IDBKeyRange.bound(upperNeedles[0], lowerNeedles[needlesLen - 1] + suffix);
+ });
+ c._ondirectionchange = function (direction) {
+ // This event onlys occur before filter is called the first time.
+ initDirection(direction);
+ };
+ var firstPossibleNeedle = 0;
+ c._addAlgorithm(function (cursor, advance, resolve) {
+ /// <param name="cursor" type="IDBCursor"></param>
+ /// <param name="advance" type="Function"></param>
+ /// <param name="resolve" type="Function"></param>
+ var key = cursor.key;
+ if (typeof key !== 'string')
+ return false;
+ var lowerKey = lower(key);
+ if (match(lowerKey, lowerNeedles, firstPossibleNeedle)) {
+ return true;
+ }
+ else {
+ var lowestPossibleCasing = null;
+ for (var i = firstPossibleNeedle; i < needlesLen; ++i) {
+ var casing = nextCasing(key, lowerKey, upperNeedles[i], lowerNeedles[i], compare, direction);
+ if (casing === null && lowestPossibleCasing === null)
+ firstPossibleNeedle = i + 1;
+ else if (lowestPossibleCasing === null || compare(lowestPossibleCasing, casing) > 0) {
+ lowestPossibleCasing = casing;
+ }
+ }
+ if (lowestPossibleCasing !== null) {
+ advance(function () { cursor.continue(lowestPossibleCasing + nextKeySuffix); });
+ }
+ else {
+ advance(resolve);
+ }
+ return false;
+ }
+ });
+ return c;
+ }
+ //
+ // WhereClause public methods
+ //
+ return {
+ between: function (lower, upper, includeLower, includeUpper) {
+ /// <summary>
+ /// Filter out records whose where-field lays between given lower and upper values. Applies to Strings, Numbers and Dates.
+ /// </summary>
+ /// <param name="lower"></param>
+ /// <param name="upper"></param>
+ /// <param name="includeLower" optional="true">Whether items that equals lower should be included. Default true.</param>
+ /// <param name="includeUpper" optional="true">Whether items that equals upper should be included. Default false.</param>
+ /// <returns type="Collection"></returns>
+ includeLower = includeLower !== false; // Default to true
+ includeUpper = includeUpper === true; // Default to false
+ try {
+ if ((cmp(lower, upper) > 0) ||
+ (cmp(lower, upper) === 0 && (includeLower || includeUpper) && !(includeLower && includeUpper)))
+ return emptyCollection(this); // Workaround for idiotic W3C Specification that DataError must be thrown if lower > upper. The natural result would be to return an empty collection.
+ return new Collection(this, function () { return IDBKeyRange.bound(lower, upper, !includeLower, !includeUpper); });
+ }
+ catch (e) {
+ return fail(this, INVALID_KEY_ARGUMENT);
+ }
+ },
+ equals: function (value) {
+ return new Collection(this, function () { return IDBKeyRange.only(value); });
+ },
+ above: function (value) {
+ return new Collection(this, function () { return IDBKeyRange.lowerBound(value, true); });
+ },
+ aboveOrEqual: function (value) {
+ return new Collection(this, function () { return IDBKeyRange.lowerBound(value); });
+ },
+ below: function (value) {
+ return new Collection(this, function () { return IDBKeyRange.upperBound(value, true); });
+ },
+ belowOrEqual: function (value) {
+ return new Collection(this, function () { return IDBKeyRange.upperBound(value); });
+ },
+ startsWith: function (str) {
+ /// <param name="str" type="String"></param>
+ if (typeof str !== 'string')
+ return fail(this, STRING_EXPECTED);
+ return this.between(str, str + maxString, true, true);
+ },
+ startsWithIgnoreCase: function (str) {
+ /// <param name="str" type="String"></param>
+ if (str === "")
+ return this.startsWith(str);
+ return addIgnoreCaseAlgorithm(this, function (x, a) { return x.indexOf(a[0]) === 0; }, [str], maxString);
+ },
+ equalsIgnoreCase: function (str) {
+ /// <param name="str" type="String"></param>
+ return addIgnoreCaseAlgorithm(this, function (x, a) { return x === a[0]; }, [str], "");
+ },
+ anyOfIgnoreCase: function () {
+ var set = getArrayOf.apply(NO_CHAR_ARRAY, arguments);
+ if (set.length === 0)
+ return emptyCollection(this);
+ return addIgnoreCaseAlgorithm(this, function (x, a) { return a.indexOf(x) !== -1; }, set, "");
+ },
+ startsWithAnyOfIgnoreCase: function () {
+ var set = getArrayOf.apply(NO_CHAR_ARRAY, arguments);
+ if (set.length === 0)
+ return emptyCollection(this);
+ return addIgnoreCaseAlgorithm(this, function (x, a) {
+ return a.some(function (n) {
+ return x.indexOf(n) === 0;
+ });
+ }, set, maxString);
+ },
+ anyOf: function () {
+ var set = getArrayOf.apply(NO_CHAR_ARRAY, arguments);
+ var compare = ascending;
+ try {
+ set.sort(compare);
+ }
+ catch (e) {
+ return fail(this, INVALID_KEY_ARGUMENT);
+ }
+ if (set.length === 0)
+ return emptyCollection(this);
+ var c = new Collection(this, function () { return IDBKeyRange.bound(set[0], set[set.length - 1]); });
+ c._ondirectionchange = function (direction) {
+ compare = (direction === "next" ? ascending : descending);
+ set.sort(compare);
+ };
+ var i = 0;
+ c._addAlgorithm(function (cursor, advance, resolve) {
+ var key = cursor.key;
+ while (compare(key, set[i]) > 0) {
+ // The cursor has passed beyond this key. Check next.
+ ++i;
+ if (i === set.length) {
+ // There is no next. Stop searching.
+ advance(resolve);
+ return false;
+ }
+ }
+ if (compare(key, set[i]) === 0) {
+ // The current cursor value should be included and we should continue a single step in case next item has the same key or possibly our next key in set.
+ return true;
+ }
+ else {
+ // cursor.key not yet at set[i]. Forward cursor to the next key to hunt for.
+ advance(function () { cursor.continue(set[i]); });
+ return false;
+ }
+ });
+ return c;
+ },
+ notEqual: function (value) {
+ return this.inAnyRange([[minKey, value], [value, maxKey]], { includeLowers: false, includeUppers: false });
+ },
+ noneOf: function () {
+ var set = getArrayOf.apply(NO_CHAR_ARRAY, arguments);
+ if (set.length === 0)
+ return new Collection(this); // Return entire collection.
+ try {
+ set.sort(ascending);
+ }
+ catch (e) {
+ return fail(this, INVALID_KEY_ARGUMENT);
+ }
+ // Transform ["a","b","c"] to a set of ranges for between/above/below: [[minKey,"a"], ["a","b"], ["b","c"], ["c",maxKey]]
+ var ranges = set.reduce(function (res, val) { return res ? res.concat([[res[res.length - 1][1], val]]) : [[minKey, val]]; }, null);
+ ranges.push([set[set.length - 1], maxKey]);
+ return this.inAnyRange(ranges, { includeLowers: false, includeUppers: false });
+ },
+ /** Filter out values withing given set of ranges.
+ * Example, give children and elders a rebate of 50%:
+ *
+ * db.friends.where('age').inAnyRange([[0,18],[65,Infinity]]).modify({Rebate: 1/2});
+ *
+ * @param {(string|number|Date|Array)[][]} ranges
+ * @param {{includeLowers: boolean, includeUppers: boolean}} options
+ */
+ inAnyRange: function (ranges, options) {
+ if (ranges.length === 0)
+ return emptyCollection(this);
+ if (!ranges.every(function (range) { return range[0] !== undefined && range[1] !== undefined && ascending(range[0], range[1]) <= 0; })) {
+ return fail(this, "First argument to inAnyRange() must be an Array of two-value Arrays [lower,upper] where upper must not be lower than lower", exceptions.InvalidArgument);
+ }
+ var includeLowers = !options || options.includeLowers !== false; // Default to true
+ var includeUppers = options && options.includeUppers === true; // Default to false
+ function addRange(ranges, newRange) {
+ for (var i = 0, l = ranges.length; i < l; ++i) {
+ var range = ranges[i];
+ if (cmp(newRange[0], range[1]) < 0 && cmp(newRange[1], range[0]) > 0) {
+ range[0] = min(range[0], newRange[0]);
+ range[1] = max(range[1], newRange[1]);
+ break;
+ }
+ }
+ if (i === l)
+ ranges.push(newRange);
+ return ranges;
+ }
+ var sortDirection = ascending;
+ function rangeSorter(a, b) { return sortDirection(a[0], b[0]); }
+ // Join overlapping ranges
+ var set;
+ try {
+ set = ranges.reduce(addRange, []);
+ set.sort(rangeSorter);
+ }
+ catch (ex) {
+ return fail(this, INVALID_KEY_ARGUMENT);
+ }
+ var i = 0;
+ var keyIsBeyondCurrentEntry = includeUppers ?
+ function (key) { return ascending(key, set[i][1]) > 0; } :
+ function (key) { return ascending(key, set[i][1]) >= 0; };
+ var keyIsBeforeCurrentEntry = includeLowers ?
+ function (key) { return descending(key, set[i][0]) > 0; } :
+ function (key) { return descending(key, set[i][0]) >= 0; };
+ function keyWithinCurrentRange(key) {
+ return !keyIsBeyondCurrentEntry(key) && !keyIsBeforeCurrentEntry(key);
+ }
+ var checkKey = keyIsBeyondCurrentEntry;
+ var c = new Collection(this, function () {
+ return IDBKeyRange.bound(set[0][0], set[set.length - 1][1], !includeLowers, !includeUppers);
+ });
+ c._ondirectionchange = function (direction) {
+ if (direction === "next") {
+ checkKey = keyIsBeyondCurrentEntry;
+ sortDirection = ascending;
+ }
+ else {
+ checkKey = keyIsBeforeCurrentEntry;
+ sortDirection = descending;
+ }
+ set.sort(rangeSorter);
+ };
+ c._addAlgorithm(function (cursor, advance, resolve) {
+ var key = cursor.key;
+ while (checkKey(key)) {
+ // The cursor has passed beyond this key. Check next.
+ ++i;
+ if (i === set.length) {
+ // There is no next. Stop searching.
+ advance(resolve);
+ return false;
+ }
+ }
+ if (keyWithinCurrentRange(key)) {
+ // The current cursor value should be included and we should continue a single step in case next item has the same key or possibly our next key in set.
+ return true;
+ }
+ else if (cmp(key, set[i][1]) === 0 || cmp(key, set[i][0]) === 0) {
+ // includeUpper or includeLower is false so keyWithinCurrentRange() returns false even though we are at range border.
+ // Continue to next key but don't include this one.
+ return false;
+ }
+ else {
+ // cursor.key not yet at set[i]. Forward cursor to the next key to hunt for.
+ advance(function () {
+ if (sortDirection === ascending)
+ cursor.continue(set[i][0]);
+ else
+ cursor.continue(set[i][1]);
+ });
+ return false;
+ }
+ });
+ return c;
+ },
+ startsWithAnyOf: function () {
+ var set = getArrayOf.apply(NO_CHAR_ARRAY, arguments);
+ if (!set.every(function (s) { return typeof s === 'string'; })) {
+ return fail(this, "startsWithAnyOf() only works with strings");
+ }
+ if (set.length === 0)
+ return emptyCollection(this);
+ return this.inAnyRange(set.map(function (str) {
+ return [str, str + maxString];
+ }));
+ }
+ };
+ });
+ //
+ //
+ //
+ // Collection Class
+ //
+ //
+ //
+ function Collection(whereClause, keyRangeGenerator) {
+ /// <summary>
+ ///
+ /// </summary>
+ /// <param name="whereClause" type="WhereClause">Where clause instance</param>
+ /// <param name="keyRangeGenerator" value="function(){ return IDBKeyRange.bound(0,1);}" optional="true"></param>
+ var keyRange = null, error = null;
+ if (keyRangeGenerator)
+ try {
+ keyRange = keyRangeGenerator();
+ }
+ catch (ex) {
+ error = ex;
+ }
+ var whereCtx = whereClause._ctx, table = whereCtx.table;
+ this._ctx = {
+ table: table,
+ index: whereCtx.index,
+ isPrimKey: (!whereCtx.index || (table.schema.primKey.keyPath && whereCtx.index === table.schema.primKey.name)),
+ range: keyRange,
+ keysOnly: false,
+ dir: "next",
+ unique: "",
+ algorithm: null,
+ filter: null,
+ replayFilter: null,
+ justLimit: true,
+ isMatch: null,
+ offset: 0,
+ limit: Infinity,
+ error: error,
+ or: whereCtx.or,
+ valueMapper: table.hook.reading.fire
+ };
+ }
+ function isPlainKeyRange(ctx, ignoreLimitFilter) {
+ return !(ctx.filter || ctx.algorithm || ctx.or) &&
+ (ignoreLimitFilter ? ctx.justLimit : !ctx.replayFilter);
+ }
+ props(Collection.prototype, function () {
+ //
+ // Collection Private Functions
+ //
+ function addFilter(ctx, fn) {
+ ctx.filter = combine(ctx.filter, fn);
+ }
+ function addReplayFilter(ctx, factory, isLimitFilter) {
+ var curr = ctx.replayFilter;
+ ctx.replayFilter = curr ? function () { return combine(curr(), factory()); } : factory;
+ ctx.justLimit = isLimitFilter && !curr;
+ }
+ function addMatchFilter(ctx, fn) {
+ ctx.isMatch = combine(ctx.isMatch, fn);
+ }
+ /** @param ctx {
+ * isPrimKey: boolean,
+ * table: Table,
+ * index: string
+ * }
+ * @param store IDBObjectStore
+ **/
+ function getIndexOrStore(ctx, store) {
+ if (ctx.isPrimKey)
+ return store;
+ var indexSpec = ctx.table.schema.idxByName[ctx.index];
+ if (!indexSpec)
+ throw new exceptions.Schema("KeyPath " + ctx.index + " on object store " + store.name + " is not indexed");
+ return store.index(indexSpec.name);
+ }
+ /** @param ctx {
+ * isPrimKey: boolean,
+ * table: Table,
+ * index: string,
+ * keysOnly: boolean,
+ * range?: IDBKeyRange,
+ * dir: "next" | "prev"
+ * }
+ */
+ function openCursor(ctx, store) {
+ var idxOrStore = getIndexOrStore(ctx, store);
+ return ctx.keysOnly && 'openKeyCursor' in idxOrStore ?
+ idxOrStore.openKeyCursor(ctx.range || null, ctx.dir + ctx.unique) :
+ idxOrStore.openCursor(ctx.range || null, ctx.dir + ctx.unique);
+ }
+ function iter(ctx, fn, resolve, reject, idbstore) {
+ var filter = ctx.replayFilter ? combine(ctx.filter, ctx.replayFilter()) : ctx.filter;
+ if (!ctx.or) {
+ iterate(openCursor(ctx, idbstore), combine(ctx.algorithm, filter), fn, resolve, reject, !ctx.keysOnly && ctx.valueMapper);
+ }
+ else
+ (function () {
+ var set = {};
+ var resolved = 0;
+ function resolveboth() {
+ if (++resolved === 2)
+ resolve(); // Seems like we just support or btwn max 2 expressions, but there are no limit because we do recursion.
+ }
+ function union(item, cursor, advance) {
+ if (!filter || filter(cursor, advance, resolveboth, reject)) {
+ var primaryKey = cursor.primaryKey;
+ var key = '' + primaryKey;
+ if (key === '[object ArrayBuffer]')
+ key = '' + new Uint8Array(primaryKey);
+ if (!hasOwn(set, key)) {
+ set[key] = true;
+ fn(item, cursor, advance);
+ }
+ }
+ }
+ ctx.or._iterate(union, resolveboth, reject, idbstore);
+ iterate(openCursor(ctx, idbstore), ctx.algorithm, union, resolveboth, reject, !ctx.keysOnly && ctx.valueMapper);
+ })();
+ }
+ return {
+ //
+ // Collection Protected Functions
+ //
+ _read: function (fn, cb) {
+ var ctx = this._ctx;
+ return ctx.error ?
+ ctx.table._trans(null, rejection.bind(null, ctx.error)) :
+ ctx.table._idbstore(READONLY, fn).then(cb);
+ },
+ _write: function (fn) {
+ var ctx = this._ctx;
+ return ctx.error ?
+ ctx.table._trans(null, rejection.bind(null, ctx.error)) :
+ ctx.table._idbstore(READWRITE, fn, "locked"); // When doing write operations on collections, always lock the operation so that upcoming operations gets queued.
+ },
+ _addAlgorithm: function (fn) {
+ var ctx = this._ctx;
+ ctx.algorithm = combine(ctx.algorithm, fn);
+ },
+ _iterate: function (fn, resolve, reject, idbstore) {
+ return iter(this._ctx, fn, resolve, reject, idbstore);
+ },
+ clone: function (props$$1) {
+ var rv = Object.create(this.constructor.prototype), ctx = Object.create(this._ctx);
+ if (props$$1)
+ extend(ctx, props$$1);
+ rv._ctx = ctx;
+ return rv;
+ },
+ raw: function () {
+ this._ctx.valueMapper = null;
+ return this;
+ },
+ //
+ // Collection Public methods
+ //
+ each: function (fn) {
+ var ctx = this._ctx;
+ return this._read(function (resolve, reject, idbstore) {
+ iter(ctx, fn, resolve, reject, idbstore);
+ });
+ },
+ count: function (cb) {
+ var ctx = this._ctx;
+ if (isPlainKeyRange(ctx, true)) {
+ // This is a plain key range. We can use the count() method if the index.
+ return this._read(function (resolve, reject, idbstore) {
+ var idx = getIndexOrStore(ctx, idbstore);
+ var req = (ctx.range ? idx.count(ctx.range) : idx.count());
+ req.onerror = eventRejectHandler(reject);
+ req.onsuccess = function (e) {
+ resolve(Math.min(e.target.result, ctx.limit));
+ };
+ }, cb);
+ }
+ else {
+ // Algorithms, filters or expressions are applied. Need to count manually.
+ var count = 0;
+ return this._read(function (resolve, reject, idbstore) {
+ iter(ctx, function () { ++count; return false; }, function () { resolve(count); }, reject, idbstore);
+ }, cb);
+ }
+ },
+ sortBy: function (keyPath, cb) {
+ /// <param name="keyPath" type="String"></param>
+ var parts = keyPath.split('.').reverse(), lastPart = parts[0], lastIndex = parts.length - 1;
+ function getval(obj, i) {
+ if (i)
+ return getval(obj[parts[i]], i - 1);
+ return obj[lastPart];
+ }
+ var order = this._ctx.dir === "next" ? 1 : -1;
+ function sorter(a, b) {
+ var aVal = getval(a, lastIndex), bVal = getval(b, lastIndex);
+ return aVal < bVal ? -order : aVal > bVal ? order : 0;
+ }
+ return this.toArray(function (a) {
+ return a.sort(sorter);
+ }).then(cb);
+ },
+ toArray: function (cb) {
+ var ctx = this._ctx;
+ return this._read(function (resolve, reject, idbstore) {
+ if (hasGetAll && ctx.dir === 'next' && isPlainKeyRange(ctx, true) && ctx.limit > 0) {
+ // Special optimation if we could use IDBObjectStore.getAll() or
+ // IDBKeyRange.getAll():
+ var readingHook = ctx.table.hook.reading.fire;
+ var idxOrStore = getIndexOrStore(ctx, idbstore);
+ var req = ctx.limit < Infinity ?
+ idxOrStore.getAll(ctx.range, ctx.limit) :
+ idxOrStore.getAll(ctx.range);
+ req.onerror = eventRejectHandler(reject);
+ req.onsuccess = readingHook === mirror ?
+ eventSuccessHandler(resolve) :
+ eventSuccessHandler(function (res) {
+ try {
+ resolve(res.map(readingHook));
+ }
+ catch (e) {
+ reject(e);
+ }
+ });
+ }
+ else {
+ // Getting array through a cursor.
+ var a = [];
+ iter(ctx, function (item) { a.push(item); }, function arrayComplete() {
+ resolve(a);
+ }, reject, idbstore);
+ }
+ }, cb);
+ },
+ offset: function (offset) {
+ var ctx = this._ctx;
+ if (offset <= 0)
+ return this;
+ ctx.offset += offset; // For count()
+ if (isPlainKeyRange(ctx)) {
+ addReplayFilter(ctx, function () {
+ var offsetLeft = offset;
+ return function (cursor, advance) {
+ if (offsetLeft === 0)
+ return true;
+ if (offsetLeft === 1) {
+ --offsetLeft;
+ return false;
+ }
+ advance(function () {
+ cursor.advance(offsetLeft);
+ offsetLeft = 0;
+ });
+ return false;
+ };
+ });
+ }
+ else {
+ addReplayFilter(ctx, function () {
+ var offsetLeft = offset;
+ return function () { return (--offsetLeft < 0); };
+ });
+ }
+ return this;
+ },
+ limit: function (numRows) {
+ this._ctx.limit = Math.min(this._ctx.limit, numRows); // For count()
+ addReplayFilter(this._ctx, function () {
+ var rowsLeft = numRows;
+ return function (cursor, advance, resolve) {
+ if (--rowsLeft <= 0)
+ advance(resolve); // Stop after this item has been included
+ return rowsLeft >= 0; // If numRows is already below 0, return false because then 0 was passed to numRows initially. Otherwise we wouldnt come here.
+ };
+ }, true);
+ return this;
+ },
+ until: function (filterFunction, bIncludeStopEntry) {
+ addFilter(this._ctx, function (cursor, advance, resolve) {
+ if (filterFunction(cursor.value)) {
+ advance(resolve);
+ return bIncludeStopEntry;
+ }
+ else {
+ return true;
+ }
+ });
+ return this;
+ },
+ first: function (cb) {
+ return this.limit(1).toArray(function (a) { return a[0]; }).then(cb);
+ },
+ last: function (cb) {
+ return this.reverse().first(cb);
+ },
+ filter: function (filterFunction) {
+ /// <param name="jsFunctionFilter" type="Function">function(val){return true/false}</param>
+ addFilter(this._ctx, function (cursor) {
+ return filterFunction(cursor.value);
+ });
+ // match filters not used in Dexie.js but can be used by 3rd part libraries to test a
+ // collection for a match without querying DB. Used by Dexie.Observable.
+ addMatchFilter(this._ctx, filterFunction);
+ return this;
+ },
+ and: function (filterFunction) {
+ return this.filter(filterFunction);
+ },
+ or: function (indexName) {
+ return new WhereClause(this._ctx.table, indexName, this);
+ },
+ reverse: function () {
+ this._ctx.dir = (this._ctx.dir === "prev" ? "next" : "prev");
+ if (this._ondirectionchange)
+ this._ondirectionchange(this._ctx.dir);
+ return this;
+ },
+ desc: function () {
+ return this.reverse();
+ },
+ eachKey: function (cb) {
+ var ctx = this._ctx;
+ ctx.keysOnly = !ctx.isMatch;
+ return this.each(function (val, cursor) { cb(cursor.key, cursor); });
+ },
+ eachUniqueKey: function (cb) {
+ this._ctx.unique = "unique";
+ return this.eachKey(cb);
+ },
+ eachPrimaryKey: function (cb) {
+ var ctx = this._ctx;
+ ctx.keysOnly = !ctx.isMatch;
+ return this.each(function (val, cursor) { cb(cursor.primaryKey, cursor); });
+ },
+ keys: function (cb) {
+ var ctx = this._ctx;
+ ctx.keysOnly = !ctx.isMatch;
+ var a = [];
+ return this.each(function (item, cursor) {
+ a.push(cursor.key);
+ }).then(function () {
+ return a;
+ }).then(cb);
+ },
+ primaryKeys: function (cb) {
+ var ctx = this._ctx;
+ if (hasGetAll && ctx.dir === 'next' && isPlainKeyRange(ctx, true) && ctx.limit > 0) {
+ // Special optimation if we could use IDBObjectStore.getAllKeys() or
+ // IDBKeyRange.getAllKeys():
+ return this._read(function (resolve, reject, idbstore) {
+ var idxOrStore = getIndexOrStore(ctx, idbstore);
+ var req = ctx.limit < Infinity ?
+ idxOrStore.getAllKeys(ctx.range, ctx.limit) :
+ idxOrStore.getAllKeys(ctx.range);
+ req.onerror = eventRejectHandler(reject);
+ req.onsuccess = eventSuccessHandler(resolve);
+ }).then(cb);
+ }
+ ctx.keysOnly = !ctx.isMatch;
+ var a = [];
+ return this.each(function (item, cursor) {
+ a.push(cursor.primaryKey);
+ }).then(function () {
+ return a;
+ }).then(cb);
+ },
+ uniqueKeys: function (cb) {
+ this._ctx.unique = "unique";
+ return this.keys(cb);
+ },
+ firstKey: function (cb) {
+ return this.limit(1).keys(function (a) { return a[0]; }).then(cb);
+ },
+ lastKey: function (cb) {
+ return this.reverse().firstKey(cb);
+ },
+ distinct: function () {
+ var ctx = this._ctx, idx = ctx.index && ctx.table.schema.idxByName[ctx.index];
+ if (!idx || !idx.multi)
+ return this; // distinct() only makes differencies on multiEntry indexes.
+ var set = {};
+ addFilter(this._ctx, function (cursor) {
+ var strKey = cursor.primaryKey.toString(); // Converts any Date to String, String to String, Number to String and Array to comma-separated string
+ var found = hasOwn(set, strKey);
+ set[strKey] = true;
+ return !found;
+ });
+ return this;
+ },
+ //
+ // Methods that mutate storage
+ //
+ modify: function (changes) {
+ var self = this, ctx = this._ctx, hook = ctx.table.hook, updatingHook = hook.updating.fire, deletingHook = hook.deleting.fire;
+ return this._write(function (resolve, reject, idbstore, trans) {
+ var modifyer;
+ if (typeof changes === 'function') {
+ // Changes is a function that may update, add or delete propterties or even require a deletion the object itself (delete this.item)
+ if (updatingHook === nop && deletingHook === nop) {
+ // Noone cares about what is being changed. Just let the modifier function be the given argument as is.
+ modifyer = changes;
+ }
+ else {
+ // People want to know exactly what is being modified or deleted.
+ // Let modifyer be a proxy function that finds out what changes the caller is actually doing
+ // and call the hooks accordingly!
+ modifyer = function (item) {
+ var origItem = deepClone(item); // Clone the item first so we can compare laters.
+ if (changes.call(this, item, this) === false)
+ return false; // Call the real modifyer function (If it returns false explicitely, it means it dont want to modify anyting on this object)
+ if (!hasOwn(this, "value")) {
+ // The real modifyer function requests a deletion of the object. Inform the deletingHook that a deletion is taking place.
+ deletingHook.call(this, this.primKey, item, trans);
+ }
+ else {
+ // No deletion. Check what was changed
+ var objectDiff = getObjectDiff(origItem, this.value);
+ var additionalChanges = updatingHook.call(this, objectDiff, this.primKey, origItem, trans);
+ if (additionalChanges) {
+ // Hook want to apply additional modifications. Make sure to fullfill the will of the hook.
+ item = this.value;
+ keys(additionalChanges).forEach(function (keyPath) {
+ setByKeyPath(item, keyPath, additionalChanges[keyPath]); // Adding {keyPath: undefined} means that the keyPath should be deleted. Handled by setByKeyPath
+ });
+ }
+ }
+ };
+ }
+ }
+ else if (updatingHook === nop) {
+ // changes is a set of {keyPath: value} and no one is listening to the updating hook.
+ var keyPaths = keys(changes);
+ var numKeys = keyPaths.length;
+ modifyer = function (item) {
+ var anythingModified = false;
+ for (var i = 0; i < numKeys; ++i) {
+ var keyPath = keyPaths[i], val = changes[keyPath];
+ if (getByKeyPath(item, keyPath) !== val) {
+ setByKeyPath(item, keyPath, val); // Adding {keyPath: undefined} means that the keyPath should be deleted. Handled by setByKeyPath
+ anythingModified = true;
+ }
+ }
+ return anythingModified;
+ };
+ }
+ else {
+ // changes is a set of {keyPath: value} and people are listening to the updating hook so we need to call it and
+ // allow it to add additional modifications to make.
+ var origChanges = changes;
+ changes = shallowClone(origChanges); // Let's work with a clone of the changes keyPath/value set so that we can restore it in case a hook extends it.
+ modifyer = function (item) {
+ var anythingModified = false;
+ var additionalChanges = updatingHook.call(this, changes, this.primKey, deepClone(item), trans);
+ if (additionalChanges)
+ extend(changes, additionalChanges);
+ keys(changes).forEach(function (keyPath) {
+ var val = changes[keyPath];
+ if (getByKeyPath(item, keyPath) !== val) {
+ setByKeyPath(item, keyPath, val);
+ anythingModified = true;
+ }
+ });
+ if (additionalChanges)
+ changes = shallowClone(origChanges); // Restore original changes for next iteration
+ return anythingModified;
+ };
+ }
+ var count = 0;
+ var successCount = 0;
+ var iterationComplete = false;
+ var failures = [];
+ var failKeys = [];
+ var currentKey = null;
+ function modifyItem(item, cursor) {
+ currentKey = cursor.primaryKey;
+ var thisContext = {
+ primKey: cursor.primaryKey,
+ value: item,
+ onsuccess: null,
+ onerror: null
+ };
+ function onerror(e) {
+ failures.push(e);
+ failKeys.push(thisContext.primKey);
+ checkFinished();
+ return true; // Catch these errors and let a final rejection decide whether or not to abort entire transaction
+ }
+ if (modifyer.call(thisContext, item, thisContext) !== false) {
+ var bDelete = !hasOwn(thisContext, "value");
+ ++count;
+ tryCatch(function () {
+ var req = (bDelete ? cursor.delete() : cursor.update(thisContext.value));
+ req._hookCtx = thisContext;
+ req.onerror = hookedEventRejectHandler(onerror);
+ req.onsuccess = hookedEventSuccessHandler(function () {
+ ++successCount;
+ checkFinished();
+ });
+ }, onerror);
+ }
+ else if (thisContext.onsuccess) {
+ // Hook will expect either onerror or onsuccess to always be called!
+ thisContext.onsuccess(thisContext.value);
+ }
+ }
+ function doReject(e) {
+ if (e) {
+ failures.push(e);
+ failKeys.push(currentKey);
+ }
+ return reject(new ModifyError("Error modifying one or more objects", failures, successCount, failKeys));
+ }
+ function checkFinished() {
+ if (iterationComplete && successCount + failures.length === count) {
+ if (failures.length > 0)
+ doReject();
+ else
+ resolve(successCount);
+ }
+ }
+ self.clone().raw()._iterate(modifyItem, function () {
+ iterationComplete = true;
+ checkFinished();
+ }, doReject, idbstore);
+ });
+ },
+ 'delete': function () {
+ var _this = this;
+ var ctx = this._ctx, range = ctx.range, deletingHook = ctx.table.hook.deleting.fire, hasDeleteHook = deletingHook !== nop;
+ if (!hasDeleteHook &&
+ isPlainKeyRange(ctx) &&
+ ((ctx.isPrimKey && !hangsOnDeleteLargeKeyRange) || !range)) {
+ // May use IDBObjectStore.delete(IDBKeyRange) in this case (Issue #208)
+ // For chromium, this is the way most optimized version.
+ // For IE/Edge, this could hang the indexedDB engine and make operating system instable
+ // (https://gist.github.com/dfahlander/5a39328f029de18222cf2125d56c38f7)
+ return this._write(function (resolve, reject, idbstore) {
+ // Our API contract is to return a count of deleted items, so we have to count() before delete().
+ var onerror = eventRejectHandler(reject), countReq = (range ? idbstore.count(range) : idbstore.count());
+ countReq.onerror = onerror;
+ countReq.onsuccess = function () {
+ var count = countReq.result;
+ tryCatch(function () {
+ var delReq = (range ? idbstore.delete(range) : idbstore.clear());
+ delReq.onerror = onerror;
+ delReq.onsuccess = function () { return resolve(count); };
+ }, function (err) { return reject(err); });
+ };
+ });
+ }
+ // Default version to use when collection is not a vanilla IDBKeyRange on the primary key.
+ // Divide into chunks to not starve RAM.
+ // If has delete hook, we will have to collect not just keys but also objects, so it will use
+ // more memory and need lower chunk size.
+ var CHUNKSIZE = hasDeleteHook ? 2000 : 10000;
+ return this._write(function (resolve, reject, idbstore, trans) {
+ var totalCount = 0;
+ // Clone collection and change its table and set a limit of CHUNKSIZE on the cloned Collection instance.
+ var collection = _this
+ .clone({
+ keysOnly: !ctx.isMatch && !hasDeleteHook
+ }) // load just keys (unless filter() or and() or deleteHook has subscribers)
+ .distinct() // In case multiEntry is used, never delete same key twice because resulting count
+ .limit(CHUNKSIZE)
+ .raw(); // Don't filter through reading-hooks (like mapped classes etc)
+ var keysOrTuples = [];
+ // We're gonna do things on as many chunks that are needed.
+ // Use recursion of nextChunk function:
+ var nextChunk = function () { return collection.each(hasDeleteHook ? function (val, cursor) {
+ // Somebody subscribes to hook('deleting'). Collect all primary keys and their values,
+ // so that the hook can be called with its values in bulkDelete().
+ keysOrTuples.push([cursor.primaryKey, cursor.value]);
+ } : function (val, cursor) {
+ // No one subscribes to hook('deleting'). Collect only primary keys:
+ keysOrTuples.push(cursor.primaryKey);
+ }).then(function () {
+ // Chromium deletes faster when doing it in sort order.
+ hasDeleteHook ?
+ keysOrTuples.sort(function (a, b) { return ascending(a[0], b[0]); }) :
+ keysOrTuples.sort(ascending);
+ return bulkDelete(idbstore, trans, keysOrTuples, hasDeleteHook, deletingHook);
+ }).then(function () {
+ var count = keysOrTuples.length;
+ totalCount += count;
+ keysOrTuples = [];
+ return count < CHUNKSIZE ? totalCount : nextChunk();
+ }); };
+ resolve(nextChunk());
+ });
+ }
+ };
+ });
+ //
+ //
+ //
+ // ------------------------- Help functions ---------------------------
+ //
+ //
+ //
+ function lowerVersionFirst(a, b) {
+ return a._cfg.version - b._cfg.version;
+ }
+ function setApiOnPlace(objs, tableNames, dbschema) {
+ tableNames.forEach(function (tableName) {
+ var schema = dbschema[tableName];
+ objs.forEach(function (obj) {
+ if (!(tableName in obj)) {
+ if (obj === Transaction.prototype || obj instanceof Transaction) {
+ // obj is a Transaction prototype (or prototype of a subclass to Transaction)
+ // Make the API a getter that returns this.table(tableName)
+ setProp(obj, tableName, { get: function () { return this.table(tableName); } });
+ }
+ else {
+ // Table will not be bound to a transaction (will use Dexie.currentTransaction)
+ obj[tableName] = new Table(tableName, schema);
+ }
+ }
+ });
+ });
+ }
+ function removeTablesApi(objs) {
+ objs.forEach(function (obj) {
+ for (var key in obj) {
+ if (obj[key] instanceof Table)
+ delete obj[key];
+ }
+ });
+ }
+ function iterate(req, filter, fn, resolve, reject, valueMapper) {
+ // Apply valueMapper (hook('reading') or mappped class)
+ var mappedFn = valueMapper ? function (x, c, a) { return fn(valueMapper(x), c, a); } : fn;
+ // Wrap fn with PSD and microtick stuff from Promise.
+ var wrappedFn = wrap(mappedFn, reject);
+ if (!req.onerror)
+ req.onerror = eventRejectHandler(reject);
+ if (filter) {
+ req.onsuccess = trycatcher(function filter_record() {
+ var cursor = req.result;
+ if (cursor) {
+ var c = function () { cursor.continue(); };
+ if (filter(cursor, function (advancer) { c = advancer; }, resolve, reject))
+ wrappedFn(cursor.value, cursor, function (advancer) { c = advancer; });
+ c();
+ }
+ else {
+ resolve();
+ }
+ }, reject);
+ }
+ else {
+ req.onsuccess = trycatcher(function filter_record() {
+ var cursor = req.result;
+ if (cursor) {
+ var c = function () { cursor.continue(); };
+ wrappedFn(cursor.value, cursor, function (advancer) { c = advancer; });
+ c();
+ }
+ else {
+ resolve();
+ }
+ }, reject);
+ }
+ }
+ function parseIndexSyntax(indexes) {
+ /// <param name="indexes" type="String"></param>
+ /// <returns type="Array" elementType="IndexSpec"></returns>
+ var rv = [];
+ indexes.split(',').forEach(function (index) {
+ index = index.trim();
+ var name = index.replace(/([&*]|\+\+)/g, ""); // Remove "&", "++" and "*"
+ // Let keyPath of "[a+b]" be ["a","b"]:
+ var keyPath = /^\[/.test(name) ? name.match(/^\[(.*)\]$/)[1].split('+') : name;
+ rv.push(new IndexSpec(name, keyPath || null, /\&/.test(index), /\*/.test(index), /\+\+/.test(index), isArray(keyPath), /\./.test(index)));
+ });
+ return rv;
+ }
+ function cmp(key1, key2) {
+ return indexedDB.cmp(key1, key2);
+ }
+ function min(a, b) {
+ return cmp(a, b) < 0 ? a : b;
+ }
+ function max(a, b) {
+ return cmp(a, b) > 0 ? a : b;
+ }
+ function ascending(a, b) {
+ return indexedDB.cmp(a, b);
+ }
+ function descending(a, b) {
+ return indexedDB.cmp(b, a);
+ }
+ function simpleCompare(a, b) {
+ return a < b ? -1 : a === b ? 0 : 1;
+ }
+ function simpleCompareReverse(a, b) {
+ return a > b ? -1 : a === b ? 0 : 1;
+ }
+ function combine(filter1, filter2) {
+ return filter1 ?
+ filter2 ?
+ function () { return filter1.apply(this, arguments) && filter2.apply(this, arguments); } :
+ filter1 :
+ filter2;
+ }
+ function readGlobalSchema() {
+ db.verno = idbdb.version / 10;
+ db._dbSchema = globalSchema = {};
+ dbStoreNames = slice(idbdb.objectStoreNames, 0);
+ if (dbStoreNames.length === 0)
+ return; // Database contains no stores.
+ var trans = idbdb.transaction(safariMultiStoreFix(dbStoreNames), 'readonly');
+ dbStoreNames.forEach(function (storeName) {
+ var store = trans.objectStore(storeName), keyPath = store.keyPath, dotted = keyPath && typeof keyPath === 'string' && keyPath.indexOf('.') !== -1;
+ var primKey = new IndexSpec(keyPath, keyPath || "", false, false, !!store.autoIncrement, keyPath && typeof keyPath !== 'string', dotted);
+ var indexes = [];
+ for (var j = 0; j < store.indexNames.length; ++j) {
+ var idbindex = store.index(store.indexNames[j]);
+ keyPath = idbindex.keyPath;
+ dotted = keyPath && typeof keyPath === 'string' && keyPath.indexOf('.') !== -1;
+ var index = new IndexSpec(idbindex.name, keyPath, !!idbindex.unique, !!idbindex.multiEntry, false, keyPath && typeof keyPath !== 'string', dotted);
+ indexes.push(index);
+ }
+ globalSchema[storeName] = new TableSchema(storeName, primKey, indexes, {});
+ });
+ setApiOnPlace([allTables], keys(globalSchema), globalSchema);
+ }
+ function adjustToExistingIndexNames(schema, idbtrans) {
+ /// <summary>
+ /// Issue #30 Problem with existing db - adjust to existing index names when migrating from non-dexie db
+ /// </summary>
+ /// <param name="schema" type="Object">Map between name and TableSchema</param>
+ /// <param name="idbtrans" type="IDBTransaction"></param>
+ var storeNames = idbtrans.db.objectStoreNames;
+ for (var i = 0; i < storeNames.length; ++i) {
+ var storeName = storeNames[i];
+ var store = idbtrans.objectStore(storeName);
+ hasGetAll = 'getAll' in store;
+ for (var j = 0; j < store.indexNames.length; ++j) {
+ var indexName = store.indexNames[j];
+ var keyPath = store.index(indexName).keyPath;
+ var dexieName = typeof keyPath === 'string' ? keyPath : "[" + slice(keyPath).join('+') + "]";
+ if (schema[storeName]) {
+ var indexSpec = schema[storeName].idxByName[dexieName];
+ if (indexSpec)
+ indexSpec.name = indexName;
+ }
+ }
+ }
+ // Bug with getAll() on Safari ver<604 on Workers only, see discussion following PR #579
+ if (/Safari/.test(navigator.userAgent) &&
+ !/(Chrome\/|Edge\/)/.test(navigator.userAgent) &&
+ _global.WorkerGlobalScope && _global instanceof _global.WorkerGlobalScope &&
+ [].concat(navigator.userAgent.match(/Safari\/(\d*)/))[1] < 604) {
+ hasGetAll = false;
+ }
+ }
+ function fireOnBlocked(ev) {
+ db.on("blocked").fire(ev);
+ // Workaround (not fully*) for missing "versionchange" event in IE,Edge and Safari:
+ connections
+ .filter(function (c) { return c.name === db.name && c !== db && !c._vcFired; })
+ .map(function (c) { return c.on("versionchange").fire(ev); });
+ }
+ extend(this, {
+ Collection: Collection,
+ Table: Table,
+ Transaction: Transaction,
+ Version: Version,
+ WhereClause: WhereClause
+ });
+ init();
+ addons.forEach(function (fn) {
+ fn(db);
+ });
+}
+function parseType(type) {
+ if (typeof type === 'function') {
+ return new type();
+ }
+ else if (isArray(type)) {
+ return [parseType(type[0])];
+ }
+ else if (type && typeof type === 'object') {
+ var rv = {};
+ applyStructure(rv, type);
+ return rv;
+ }
+ else {
+ return type;
+ }
+}
+function applyStructure(obj, structure) {
+ keys(structure).forEach(function (member) {
+ var value = parseType(structure[member]);
+ obj[member] = value;
+ });
+ return obj;
+}
+function hookedEventSuccessHandler(resolve) {
+ // wrap() is needed when calling hooks because the rare scenario of:
+ // * hook does a db operation that fails immediately (IDB throws exception)
+ // For calling db operations on correct transaction, wrap makes sure to set PSD correctly.
+ // wrap() will also execute in a virtual tick.
+ // * If not wrapped in a virtual tick, direct exception will launch a new physical tick.
+ // * If this was the last event in the bulk, the promise will resolve after a physical tick
+ // and the transaction will have committed already.
+ // If no hook, the virtual tick will be executed in the reject()/resolve of the final promise,
+ // because it is always marked with _lib = true when created using Transaction._promise().
+ return wrap(function (event) {
+ var req = event.target, ctx = req._hookCtx, // Contains the hook error handler. Put here instead of closure to boost performance.
+ result = ctx.value || req.result, // Pass the object value on updates. The result from IDB is the primary key.
+ hookSuccessHandler = ctx && ctx.onsuccess;
+ hookSuccessHandler && hookSuccessHandler(result);
+ resolve && resolve(result);
+ }, resolve);
+}
+function eventRejectHandler(reject) {
+ return wrap(function (event) {
+ preventDefault(event);
+ reject(event.target.error);
+ return false;
+ });
+}
+function eventSuccessHandler(resolve) {
+ return wrap(function (event) {
+ resolve(event.target.result);
+ });
+}
+function hookedEventRejectHandler(reject) {
+ return wrap(function (event) {
+ // See comment on hookedEventSuccessHandler() why wrap() is needed only when supporting hooks.
+ var req = event.target, err = req.error, ctx = req._hookCtx, // Contains the hook error handler. Put here instead of closure to boost performance.
+ hookErrorHandler = ctx && ctx.onerror;
+ hookErrorHandler && hookErrorHandler(err);
+ preventDefault(event);
+ reject(err);
+ return false;
+ });
+}
+function preventDefault(event) {
+ if (event.stopPropagation)
+ event.stopPropagation();
+ if (event.preventDefault)
+ event.preventDefault();
+}
+function awaitIterator(iterator) {
+ var callNext = function (result) { return iterator.next(result); }, doThrow = function (error) { return iterator.throw(error); }, onSuccess = step(callNext), onError = step(doThrow);
+ function step(getNext) {
+ return function (val) {
+ var next = getNext(val), value = next.value;
+ return next.done ? value :
+ (!value || typeof value.then !== 'function' ?
+ isArray(value) ? Promise.all(value).then(onSuccess, onError) : onSuccess(value) :
+ value.then(onSuccess, onError));
+ };
+ }
+ return step(callNext)();
+}
+//
+// IndexSpec struct
+//
+function IndexSpec(name, keyPath, unique, multi, auto, compound, dotted) {
+ /// <param name="name" type="String"></param>
+ /// <param name="keyPath" type="String"></param>
+ /// <param name="unique" type="Boolean"></param>
+ /// <param name="multi" type="Boolean"></param>
+ /// <param name="auto" type="Boolean"></param>
+ /// <param name="compound" type="Boolean"></param>
+ /// <param name="dotted" type="Boolean"></param>
+ this.name = name;
+ this.keyPath = keyPath;
+ this.unique = unique;
+ this.multi = multi;
+ this.auto = auto;
+ this.compound = compound;
+ this.dotted = dotted;
+ var keyPathSrc = typeof keyPath === 'string' ? keyPath : keyPath && ('[' + [].join.call(keyPath, '+') + ']');
+ this.src = (unique ? '&' : '') + (multi ? '*' : '') + (auto ? "++" : "") + keyPathSrc;
+}
+//
+// TableSchema struct
+//
+function TableSchema(name, primKey, indexes, instanceTemplate) {
+ /// <param name="name" type="String"></param>
+ /// <param name="primKey" type="IndexSpec"></param>
+ /// <param name="indexes" type="Array" elementType="IndexSpec"></param>
+ /// <param name="instanceTemplate" type="Object"></param>
+ this.name = name;
+ this.primKey = primKey || new IndexSpec();
+ this.indexes = indexes || [new IndexSpec()];
+ this.instanceTemplate = instanceTemplate;
+ this.mappedClass = null;
+ this.idxByName = arrayToObject(indexes, function (index) { return [index.name, index]; });
+}
+function safariMultiStoreFix(storeNames) {
+ return storeNames.length === 1 ? storeNames[0] : storeNames;
+}
+function getNativeGetDatabaseNamesFn(indexedDB) {
+ var fn = indexedDB && (indexedDB.getDatabaseNames || indexedDB.webkitGetDatabaseNames);
+ return fn && fn.bind(indexedDB);
+}
+// Export Error classes
+props(Dexie, fullNameExceptions); // Dexie.XXXError = class XXXError {...};
+//
+// Static methods and properties
+//
+props(Dexie, {
+ //
+ // Static delete() method.
+ //
+ delete: function (databaseName) {
+ var db = new Dexie(databaseName), promise = db.delete();
+ promise.onblocked = function (fn) {
+ db.on("blocked", fn);
+ return this;
+ };
+ return promise;
+ },
+ //
+ // Static exists() method.
+ //
+ exists: function (name) {
+ return new Dexie(name).open().then(function (db) {
+ db.close();
+ return true;
+ }).catch(Dexie.NoSuchDatabaseError, function () { return false; });
+ },
+ //
+ // Static method for retrieving a list of all existing databases at current host.
+ //
+ getDatabaseNames: function (cb) {
+ var getDatabaseNames = getNativeGetDatabaseNamesFn(Dexie.dependencies.indexedDB);
+ return getDatabaseNames ? new Promise(function (resolve, reject) {
+ var req = getDatabaseNames();
+ req.onsuccess = function (event) {
+ resolve(slice(event.target.result, 0)); // Converst DOMStringList to Array<String>
+ };
+ req.onerror = eventRejectHandler(reject);
+ }).then(cb) : dbNamesDB.dbnames.toCollection().primaryKeys(cb);
+ },
+ defineClass: function () {
+ // Default constructor able to copy given properties into this object.
+ function Class(properties) {
+ /// <param name="properties" type="Object" optional="true">Properties to initialize object with.
+ /// </param>
+ if (properties)
+ extend(this, properties);
+ }
+ return Class;
+ },
+ applyStructure: applyStructure,
+ ignoreTransaction: function (scopeFunc) {
+ // In case caller is within a transaction but needs to create a separate transaction.
+ // Example of usage:
+ //
+ // Let's say we have a logger function in our app. Other application-logic should be unaware of the
+ // logger function and not need to include the 'logentries' table in all transaction it performs.
+ // The logging should always be done in a separate transaction and not be dependant on the current
+ // running transaction context. Then you could use Dexie.ignoreTransaction() to run code that starts a new transaction.
+ //
+ // Dexie.ignoreTransaction(function() {
+ // db.logentries.add(newLogEntry);
+ // });
+ //
+ // Unless using Dexie.ignoreTransaction(), the above example would try to reuse the current transaction
+ // in current Promise-scope.
+ //
+ // An alternative to Dexie.ignoreTransaction() would be setImmediate() or setTimeout(). The reason we still provide an
+ // API for this because
+ // 1) The intention of writing the statement could be unclear if using setImmediate() or setTimeout().
+ // 2) setTimeout() would wait unnescessary until firing. This is however not the case with setImmediate().
+ // 3) setImmediate() is not supported in the ES standard.
+ // 4) You might want to keep other PSD state that was set in a parent PSD, such as PSD.letThrough.
+ return PSD.trans ?
+ usePSD(PSD.transless, scopeFunc) : // Use the closest parent that was non-transactional.
+ scopeFunc(); // No need to change scope because there is no ongoing transaction.
+ },
+ vip: function (fn) {
+ // To be used by subscribers to the on('ready') event.
+ // This will let caller through to access DB even when it is blocked while the db.ready() subscribers are firing.
+ // This would have worked automatically if we were certain that the Provider was using Dexie.Promise for all asyncronic operations. The promise PSD
+ // from the provider.connect() call would then be derived all the way to when provider would call localDatabase.applyChanges(). But since
+ // the provider more likely is using non-promise async APIs or other thenable implementations, we cannot assume that.
+ // Note that this method is only useful for on('ready') subscribers that is returning a Promise from the event. If not using vip()
+ // the database could deadlock since it wont open until the returned Promise is resolved, and any non-VIPed operation started by
+ // the caller will not resolve until database is opened.
+ return newScope(function () {
+ PSD.letThrough = true; // Make sure we are let through if still blocking db due to onready is firing.
+ return fn();
+ });
+ },
+ async: function (generatorFn) {
+ return function () {
+ try {
+ var rv = awaitIterator(generatorFn.apply(this, arguments));
+ if (!rv || typeof rv.then !== 'function')
+ return Promise.resolve(rv);
+ return rv;
+ }
+ catch (e) {
+ return rejection(e);
+ }
+ };
+ },
+ spawn: function (generatorFn, args, thiz) {
+ try {
+ var rv = awaitIterator(generatorFn.apply(thiz, args || []));
+ if (!rv || typeof rv.then !== 'function')
+ return Promise.resolve(rv);
+ return rv;
+ }
+ catch (e) {
+ return rejection(e);
+ }
+ },
+ // Dexie.currentTransaction property
+ currentTransaction: {
+ get: function () { return PSD.trans || null; }
+ },
+ waitFor: function (promiseOrFunction, optionalTimeout) {
+ // If a function is provided, invoke it and pass the returning value to Transaction.waitFor()
+ var promise = Promise.resolve(typeof promiseOrFunction === 'function' ? Dexie.ignoreTransaction(promiseOrFunction) : promiseOrFunction)
+ .timeout(optionalTimeout || 60000); // Default the timeout to one minute. Caller may specify Infinity if required.
+ // Run given promise on current transaction. If no current transaction, just return a Dexie promise based
+ // on given value.
+ return PSD.trans ? PSD.trans.waitFor(promise) : promise;
+ },
+ // Export our Promise implementation since it can be handy as a standalone Promise implementation
+ Promise: Promise,
+ // Dexie.debug proptery:
+ // Dexie.debug = false
+ // Dexie.debug = true
+ // Dexie.debug = "dexie" - don't hide dexie's stack frames.
+ debug: {
+ get: function () { return debug; },
+ set: function (value) {
+ setDebug(value, value === 'dexie' ? function () { return true; } : dexieStackFrameFilter);
+ }
+ },
+ // Export our derive/extend/override methodology
+ derive: derive,
+ extend: extend,
+ props: props,
+ override: override,
+ // Export our Events() function - can be handy as a toolkit
+ Events: Events,
+ // Utilities
+ getByKeyPath: getByKeyPath,
+ setByKeyPath: setByKeyPath,
+ delByKeyPath: delByKeyPath,
+ shallowClone: shallowClone,
+ deepClone: deepClone,
+ getObjectDiff: getObjectDiff,
+ asap: asap,
+ maxKey: maxKey,
+ minKey: minKey,
+ // Addon registry
+ addons: [],
+ // Global DB connection list
+ connections: connections,
+ MultiModifyError: exceptions.Modify,
+ errnames: errnames,
+ // Export other static classes
+ IndexSpec: IndexSpec,
+ TableSchema: TableSchema,
+ //
+ // Dependencies
+ //
+ // These will automatically work in browsers with indexedDB support, or where an indexedDB polyfill has been included.
+ //
+ // In node.js, however, these properties must be set "manually" before instansiating a new Dexie().
+ // For node.js, you need to require indexeddb-js or similar and then set these deps.
+ //
+ dependencies: (function () {
+ try {
+ return {
+ // Required:
+ indexedDB: _global.indexedDB || _global.mozIndexedDB || _global.webkitIndexedDB || _global.msIndexedDB,
+ IDBKeyRange: _global.IDBKeyRange || _global.webkitIDBKeyRange
+ };
+ }
+ catch (e) {
+ return {
+ indexedDB: null,
+ IDBKeyRange: null
+ };
+ }
+ })(),
+ // API Version Number: Type Number, make sure to always set a version number that can be comparable correctly. Example: 0.9, 0.91, 0.92, 1.0, 1.01, 1.1, 1.2, 1.21, etc.
+ semVer: DEXIE_VERSION,
+ version: DEXIE_VERSION.split('.')
+ .map(function (n) { return parseInt(n); })
+ .reduce(function (p, c, i) { return p + (c / Math.pow(10, i * 2)); }),
+ // https://github.com/dfahlander/Dexie.js/issues/186
+ // typescript compiler tsc in mode ts-->es5 & commonJS, will expect require() to return
+ // x.default. Workaround: Set Dexie.default = Dexie.
+ default: Dexie,
+ // Make it possible to import {Dexie} (non-default import)
+ // Reason 1: May switch to that in future.
+ // Reason 2: We declare it both default and named exported in d.ts to make it possible
+ // to let addons extend the Dexie interface with Typescript 2.1 (works only when explicitely
+ // exporting the symbol, not just default exporting)
+ Dexie: Dexie
+});
+// Map DOMErrors and DOMExceptions to corresponding Dexie errors. May change in Dexie v2.0.
+Promise.rejectionMapper = mapError;
+// Initialize dbNamesDB (won't ever be opened on chromium browsers')
+dbNamesDB = new Dexie('__dbnames');
+dbNamesDB.version(1).stores({ dbnames: 'name' });
+(function () {
+ // Migrate from Dexie 1.x database names stored in localStorage:
+ var DBNAMES = 'Dexie.DatabaseNames';
+ try {
+ if (typeof localStorage !== undefined && _global.document !== undefined) {
+ // Have localStorage and is not executing in a worker. Lets migrate from Dexie 1.x.
+ JSON.parse(localStorage.getItem(DBNAMES) || "[]")
+ .forEach(function (name) { return dbNamesDB.dbnames.put({ name: name }).catch(nop); });
+ localStorage.removeItem(DBNAMES);
+ }
+ }
+ catch (_e) { }
+})();
+
+return Dexie;
+
+})));
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..f6ce0ea
--- /dev/null
+++ b/index.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <title>Vanguard Editor</title>
+ <meta charset="UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+ <meta name="theme-color" content="#1D7BA3">
+ <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Merriweather:ital,wght@0,400;0,900;1,400;1,900&display=swap">
+ <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
+ <link rel="stylesheet" href="style.css">
+ </head>
+ <body>
+ <h1>Vanguard</h1>
+ <div id="toolbar">
+ <input type="file" id="open-file" accept=".json,application/json">
+ <div id="theme" class="material-icons">brightness_medium</div>
+ <label id="open" for="open-file" class="material-icons">folder_open</label>
+ <a id="save" class="material-icons">save_alt</a>
+ </div>
+ <div id="main"></div>
+ <div id="unreachable"></div>
+
+ <template id="view-entry">
+ <a class="edit-btn material-icons">edit</a>
+ <h2></h2>
+ </template>
+
+ <template id="edit-entry">
+ <a class="done-btn material-icons">done</a>
+ <h2></h2>
+ <textarea id="body" rows="1"></textarea>
+ <div class="choices"></div>
+ <div class="add-choice material-icons">add</div>
+ </template>
+
+ <template id="edit-choice">
+ <div class="choice-delete material-icons">clear</div>
+ <textarea rows="1"></textarea>
+ </template>
+
+ <script src="dexie.js"></script>
+ <script src="markup.js"></script>
+ <script src="main.js"></script>
+ </body>
+</html>
diff --git a/main.js b/main.js
new file mode 100644
index 0000000..8bc647f
--- /dev/null
+++ b/main.js
@@ -0,0 +1,268 @@
+document.addEventListener("DOMContentLoaded", () => {
+
+let data = { // Default
+ current: "",
+ pages: [
+ {body: "It was a dark and stormy night.\n\nAll was quiet.", choices: [[1,"Continue"]], paths: []},
+ {body: "Or was it...?", choices: [], paths: ["1"]}
+ ],
+ paths: {"":0, "1":1}
+};
+
+let state = {
+ editing: false,
+ saveinterval: 0,
+ addcount: 0,
+ path: ""
+};
+
+const db = new Dexie("vanguard-editor");
+db.version(1).stores({files:"name"});
+db.on("populate", () => db.files.add({name: "main", data}));
+db.files.get("main").then(d => { data = d.data;
+ location.hash = "#/"+data.current;
+ state.path = renderPath();
+ setTimeout(() => document.documentElement.scrollTop =
+ document.getElementById("main").lastChild.offsetTop);
+}).catch(e => console.error);
+
+function download(a, text, name, type) {
+ const file = new Blob([text], {type: type});
+ a.href = URL.createObjectURL(file);
+ a.download = name;
+}
+
+const prettyDate = d => d.getFullYear() +
+ (d.getMonth()+1).toString().padStart(2, "0") +
+ d.getDate().toString().padStart(2, "0") + "-" +
+ d.getHours().toString().padStart(2, "0") +
+ d.getMinutes().toString().padStart(2, "0") +
+ d.getSeconds().toString().padStart(2, "0");
+
+document.getElementById("save").addEventListener("mouseover", e => {
+ download(e.target, JSON.stringify(data),
+ `Vanguard-${prettyDate(new Date())}.json`,
+ "application/json");
+});
+
+document.getElementById("open-file").addEventListener("change", e => {
+ const r = new FileReader();
+ r.onload = () => { try {
+ data = JSON.parse(r.result);
+ db.files.put({name:"main",data});
+ location.hash = "#/"+data.current;
+ state.path = renderPath();
+ setTimeout(() => document.documentElement.scrollTop =
+ document.getElementById("main").lastChild.offsetTop);
+ } catch(e) { alert(e);
+ }}; r.readAsText(e.target.files[0]);
+});
+
+const viewtpl = document.getElementById("view-entry").content;
+const edittpl = document.getElementById("edit-entry").content;
+const choicetpl = document.getElementById("edit-choice").content;
+
+function renderView(path, choice) {
+ const pageid = data.paths[path];
+ const page = data.pages[pageid];
+ const e = document.createElement("section");
+ e.appendChild(viewtpl.cloneNode(true));
+
+ e.querySelector("a").href = path? `#/${path}/edit` : "#/edit";
+ e.querySelector("h2").innerHTML = path? (page.paths.length? `#${pageid} / ` +
+ page.paths.map(p => `<a href="#/${p}"${p==path?' class="active"':""}>${p}</a>`).join(" / ") : "UNREACHABLE") : "Start";
+ e.innerHTML += markup(page.body);
+ if (!page.choices.length) e.innerHTML += "<h3 id='the-end'></h3>";
+ else if (choice) e.innerHTML += `<a class="choice-made" href="#/${path}">${markup(page.choices[choice-1][1])}</a>`;
+ else e.innerHTML += page.choices.map((c,i) =>
+ `<a class="choice" href="#/${path}${path?"-":""}${i+1}">${markup(c[1])}</a>`).join("");
+
+ return e;
+}
+
+function renderEdit(path) {
+ const pageid = data.paths[path];
+ const page = data.pages[pageid];
+ const e = document.createElement("section");
+ e.appendChild(edittpl.cloneNode(true));
+
+ e.classList.add("editing");
+ e.querySelector("a").href = `#/${path}`;
+ e.querySelector("h2").innerHTML = path? (page.paths.length? `#${pageid} / ` +
+ page.paths.map(p => `<a href="#/${p}"${p==path?' class="active"':""}>${p}</a>`).join(" / ") : "UNREACHABLE") : "Start";
+ e.querySelector("textarea").value = page.body;
+
+ page.choices.forEach(c => {
+ const l = document.createElement("div");
+ l.appendChild(choicetpl.cloneNode(true));
+ l.classList.add("choice");
+ l.querySelector("textarea").value =
+ `#${c[0]}: ${c[1]}`;
+
+ l.querySelector(".choice-delete").addEventListener("click",
+ () => l.parentNode.removeChild(l));
+
+ e.querySelector(".choices").appendChild(l);
+ });
+
+ e.querySelector(".add-choice").addEventListener("click", () => {
+ const l = document.createElement("div");
+ l.appendChild(choicetpl.cloneNode(true));
+ l.classList.add("choice");
+
+ const t = l.querySelector("textarea");
+ t.value = `#${data.pages.length + (state.addcount++)}: Choice text...`;
+ window.addEventListener("resize", () => resizeTA(t));
+ t.addEventListener("input", () => resizeTA(t));
+ l.querySelector(".choice-delete").addEventListener("click",
+ () => l.parentNode.removeChild(l));
+
+ e.querySelector(".choices").appendChild(l);
+ resizeTA(t);
+ t.focus();
+ });
+
+ return e;
+};
+
+function resizeTA(e) {
+ const c = e.parentNode;
+ c.style.height = c.scrollHeight + "px";
+ e.style.height = "";
+ e.style.height = e.scrollHeight + "px";
+ c.style.height = "";
+}
+
+function renderPath() {
+ let path = location.hash.slice(2);
+ const main = document.getElementById("main");
+ const o = main.cloneNode(false);
+
+ state.addcount = 0;
+ state.editing = path.endsWith("edit");
+ if (state.editing) path = path.slice(0,-5);
+ if (!/[0-9]+(-[0-9]+)*/.test(path)) path = "";
+
+ const pieces = path.split("-");
+ if (pieces[0]) for (let i=0; i<pieces.length; i++) {
+ if (!data.paths.hasOwnProperty(pieces.slice(0,i+1).join("-"))) {
+ return location.hash = "#/"+pieces.slice(0,i).join("-"); }
+ o.appendChild(renderView(pieces.slice(0,i).join("-"), +pieces[i]))
+ }
+
+ if (state.editing) o.appendChild(renderEdit(path));
+ else o.appendChild(renderView(path));
+
+ main.parentNode.replaceChild(o, main);
+ data.current = path;
+ db.files.put({name:"main",data});
+
+ if (state.editing) {
+ [].forEach.call(document.querySelectorAll("textarea"), e => {
+ e.addEventListener("input", () => resizeTA(e));
+ window.addEventListener("resize", () => resizeTA(e));
+ resizeTA(e);
+ });
+
+ document.getElementById("body").focus();
+
+ state.saveinterval = setInterval(() => {
+ const path = state.path;
+ const pageid = data.paths[path];
+ const page = data.pages[pageid];
+ page.body = document.getElementById("body").value;
+ db.files.put({name:"main",data});
+ }, 15000);
+ }
+
+ const pageArr = new Array(data.pages.length).fill(0);
+ Object.values(data.paths).forEach(p => pageArr[p] = 1);
+ const unreach = pageArr.reduce((a,e,i) => { if (!e) a.push(i); return a; }, [])
+ if (unreach.length) { //console.error("Unreachable", unreach);
+ document.getElementById("unreachable").innerHTML = "Unreachable: " +
+ unreach.map(u => "#"+u).join(", ");
+ } else document.getElementById("unreachable").innerHTML = "";
+
+ return path;
+}
+
+window.addEventListener("hashchange", () => {
+ if (state.error) { delete state.error; return; }
+ clearInterval(state.saveinterval);
+ try {
+ if (state.editing) {
+ const path = state.path;
+ const pageid = data.paths[path];
+ const page = data.pages[pageid];
+ page.body = document.getElementById("body").value;
+
+ let newid = 0;
+ const newidmap = {};
+ page.choices = Array.from(document.querySelectorAll(".choice")).reduce((a,c,i) => {
+ const v = c.querySelector("textarea").value;
+ if (!/^#[0-9]+: /.test(v)) throw new Error("Invalid choice destination");
+
+ a.push([+v.slice(1, v.indexOf(":")), v.slice(v.indexOf(" ")+1)]);
+ return a;
+ }, []).map(c => { const id = c[0];
+ if (id < data.pages.length) return c;
+ if (newidmap[id]) return [newidmap[id], c[1]];
+ return [newidmap[id] = data.pages.length + newid++, c[1]];
+ });
+
+ const newpaths = {};
+ data.pages.forEach(p => p.paths = []);
+
+ page.choices.forEach((c,i) => {
+ const id = c[0];
+ if (id == data.pages.length) {
+ data.pages.push({body: "Page content...", choices: [], paths: []});
+ } else if (id > data.pages.length) throw new Error("ID Overflow");
+ });
+
+ function walkTree(id, path) {
+ const page = data.pages[id];
+ page.paths.forEach(p => {
+ if (path.startsWith(p))
+ throw new Error("Link loop detected"); });
+ page.paths.push(path);
+ page.choices.forEach((c,i) =>
+ walkTree(c[0], path+(path?"-":"")+(i+1)));
+ newpaths[path] = id;
+ } walkTree(0, "");
+
+ data.paths = newpaths;
+
+ db.files.put({name:"main",data});
+ }
+
+ const oldscroll = document.documentElement.scrollTop;
+ const oldoff = document.getElementById("main").lastChild.offsetTop;
+ const oldid = data.paths[state.path];
+ const newpath = renderPath();
+ const newid = data.paths[newpath];
+
+ if (newid == oldid) {
+ const newoff = document.getElementById("main").lastChild.offsetTop;
+ document.documentElement.scrollTop = newoff - (oldoff - oldscroll)
+ }
+
+ state.path = newpath;
+
+ } catch(e) {
+ state.error = 1;
+ console.error(e); alert(e);
+ location.hash = "#/"+state.path+(state.path?"/":"")+"edit";
+ }
+}, true);
+
+const invertCookie = encodeURIComponent("vanguard-invert");
+if (new RegExp("(?:^|;\\s*)"+invertCookie.replace(/[\-\.\+\*]/g,"\\$&")+"\\s*\\=").test(document.cookie))
+ document.documentElement.classList.add("invert");
+document.getElementById("theme").addEventListener("click", () =>
+ document.cookie = invertCookie +
+ (document.documentElement.classList.toggle("invert")?
+ "=1; expires=Fri, 31 Dec 9999 23:59:59 GMT" :
+ "=; expires=Thu, 01 Jan 1970 00:00:00 GMT"));
+
+});
diff --git a/markup.js b/markup.js
new file mode 100644
index 0000000..b39e0be
--- /dev/null
+++ b/markup.js
@@ -0,0 +1,115 @@
+// Tweaked from https://github.com/developit/snarkdown
+
+const markup = (() => {
+
+const TAGS = {
+ '' : ['<em>','</em>'],
+ _ : ['<strong>','</strong>'],
+ '~' : ['<s>','</s>'],
+ '\n' : ['</p><p>'],
+ ' ' : ['</p><p>'],
+ '-': ['<hr>']
+};
+
+const outdent = str =>
+ str.replace(RegExp('^'+(str.match(/^(\t| )+/) || '')[0], 'gm'), '');
+
+const encodeAttr = str =>
+ (str+'').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
+
+return (md, prevLinks) => {
+ let tokenizer = new RegExp(
+ "((?:^|\\n+)(?:\\n---+|\\* \\*(?: \\*)+)\\n)|" +
+ "(?:^``` *(\\w*)\\n([\\s\\S]*?)\\n```$)|" +
+ "((?:(?:^|\\n+)(?:\\t| {2,}).+)+\\n*)|" +
+ "((?:(?:^|\\n)([>*+-]|\\d+\\.)\\s+.*)+)|" +
+ "(?:\\!\\[([^\\]]*?)\\]\\(([^\\)]+?)\\))|" +
+ "(\\[)|" + "(\\](?:\\(([^\\)]+?)\\))?)|" +
+ "(?:(?:^|\\n+)([^\\s].*)\\n(\\-{3,}|={3,})(?:\\n+|$))|" +
+ "(?:(?:^|\\n+)(#{1,6})\\s*(.+)(?:\\n+|$))|" +
+ "(?:`([^`].*?)`)|( \\n\\n*|\\n{2,}|__|\\*\\*|[_*]|~~)", "gm"),
+ context = [],
+ out = '',
+ links = prevLinks || {},
+ last = 0,
+ chunk, prev, token, inner, t;
+
+ function tag(token) {
+ const desc = TAGS[token.replace(/\*/g,'_')[1] || ''],
+ end = context[context.length-1]==token;
+ if (!desc) return token;
+ if (!desc[1]) return desc[0];
+ context[end?'pop':'push'](token);
+ return desc[end|0];
+ }
+
+ function flush() {
+ let str = '';
+ while (context.length) str += tag(context[context.length-1]);
+ return str;
+ }
+
+ md = md.replace(/^\[(.+?)\]:\s*(.+)$/gm, (s, name, url) => {
+ links[name.toLowerCase()] = url;
+ return '';
+ }).replace(/^\n+|\n+$/g, '');
+
+ while ((token = tokenizer.exec(md))) {
+ prev = md.substring(last, token.index);
+ last = tokenizer.lastIndex;
+ chunk = token[0];
+ if (prev.match(/[^\\](\\\\)*\\$/)) {
+ // escaped
+ }
+ // Code/Indent blocks:
+ else if (token[3] || token[4]) {
+ chunk = '<pre class="code '+(token[4]?'poetry':token[2].toLowerCase())+'">'+
+ outdent(encodeAttr(token[3] || token[4]).replace(/^\n+|\n+$/g, ''))+'</pre>';
+ }
+ // > Quotes, -* lists:
+ else if (token[6]) {
+ t = token[6];
+ if (t.match(/\./)) {
+ token[5] = token[5].replace(/^\d+/gm, '');
+ }
+ inner = parse(outdent(token[5].replace(/^\s*[>*+.-]/gm, '')));
+ if (t==='>') t = 'blockquote';
+ else {
+ t = t.match(/\./) ? 'ol' : 'ul';
+ inner = inner.replace(/^(.*)(\n|$)/gm, '<li>$1</li>');
+ }
+ chunk = '<'+t+'>' + inner + '</'+t+'>';
+ }
+ // Images:
+ else if (token[8]) {
+ chunk = `<img src="${encodeAttr(token[8])}" alt="${encodeAttr(token[7])}">`;
+ }
+ // Links:
+ else if (token[10]) {
+ out = out.replace('<a>', `<a href="${encodeAttr(token[11] || links[prev.toLowerCase()])}">`);
+ chunk = flush() + '</a>';
+ }
+ else if (token[9]) {
+ chunk = '<a>';
+ }
+ // Headings:
+ else if (token[12] || token[14]) {
+ t = 'h' + (token[14] ? token[14].length : (token[13][0]==='='?1:2));
+ chunk = '<'+t+'>' + parse(token[12] || token[15], links) + '</'+t+'>';
+ }
+ // `code`:
+ else if (token[16]) {
+ chunk = '<code>'+encodeAttr(token[16])+'</code>';
+ }
+ // Inline formatting: *em*, **strong** & friends
+ else if (token[17] || token[1]) {
+ chunk = tag(token[17] || '--');
+ }
+ out += prev;
+ out += chunk;
+ }
+
+ return "<p>" + (out + md.substring(last) + flush()).trim() + "</p>";
+};
+
+})();
diff --git a/style.css b/style.css
new file mode 100644
index 0000000..7ad513f
--- /dev/null
+++ b/style.css
@@ -0,0 +1,260 @@
+* {
+ box-sizing: border-box;
+ margin: 0; padding: 0;
+ font-family: "Merriweather", serif;
+ transition-timing-function: ease-in-out;
+}
+
+:root {
+ --bg: #fff;
+ --selbg: #F2F2F2;
+ --border: rgba(0,0,0,.2);
+ --text: rgba(0,0,0,.87);
+ --off: rgba(0,0,0,.35);
+ --red: #EA6462;
+ --green: #58C478;
+ --blue: #1D7BA3;
+}
+
+html {
+ background-color: #fff;
+}
+
+html.invert {
+ background-color: #000;
+ --bg: #000;
+ --selbg: #0D0D0D;
+ --border: rgba(255,255,255,.2);
+ --text: rgba(255,255,255,.87);
+ --off: rgba(255,255,255,.35);
+ --red: #EA6462;
+ --green: #58C478;
+ --blue: #1D7BA3;
+}
+
+@media (prefers-color-scheme: dark) {
+ :root {
+ --bg: #000;
+ --selbg: #0D0D0D;
+ --border: rgba(255,255,255,.2);
+ --text: rgba(255,255,255,.87);
+ --off: rgba(255,255,255,.35);
+ --red: #EA6462;
+ --green: #58C478;
+ --blue: #1D7BA3;
+ }
+
+ html {
+ background-color: #000;
+ }
+
+ html.invert {
+ background-color: #fff;
+ --bg: #fff;
+ --selbg: #F2F2F2;
+ --border: rgba(0,0,0,.2);
+ --text: rgba(0,0,0,.87);
+ --off: rgba(0,0,0,.35);
+ --red: #EA6462;
+ --green: #58C478;
+ --blue: #1D7BA3;
+ }
+}
+
+body {
+ max-width: 620px;
+ margin: 0 auto;
+ padding: 48px;
+ color: var(--text);
+}
+
+div.material-icons {
+ display: block;
+}
+
+#toolbar {
+ position: fixed;
+ top: 0; right: 0;
+}
+
+#open-file {
+ display: none;
+}
+
+#toolbar div, #toolbar a, #toolbar label {
+ display: block;
+ height: 48px;
+ width: 48px;
+ text-align: center;
+ line-height: 48px;
+ text-decoration: none;
+ color: var(--off);
+ cursor: pointer;
+}
+
+#toolbar div:hover, #toolbar a:hover, #toolbar label:hover {
+ color: var(--text);
+}
+
+h1 {
+ margin-bottom: 12px;
+ font-size: 42px;
+ /*font-size: 26px;*/
+ font-weight: normal;
+}
+
+section {
+ position: relative;
+ padding: 20px 0 16px;
+ border-top: 1px solid var(--border);
+}
+
+.edit-btn, .done-btn {
+ position: absolute;
+ top: 12px; right: 0;
+ text-decoration: none;
+ color: var(--off);
+ cursor: pointer;
+}
+
+.edit-btn:hover {
+ color: var(--text);
+}
+
+.done-btn:hover {
+ color: var(--bg);
+ background-color: var(--green);
+}
+
+h2 {
+ font-size: 10px;
+ font-weight: normal;
+ color: var(--off);
+}
+
+h2 a {
+ color: var(--off);
+ text-decoration: none;
+}
+
+h2 a.active, h2 a:hover {
+ color: var(--text);
+}
+
+section:not(.editing) p {
+ margin: 22px 0;
+ font-size: 16px;
+ line-height: 1.4em;
+}
+
+strong {
+ font-weight: 900;
+}
+
+section:not(.editing) .choice {
+ display: block;
+ margin: 1em 0;
+ color: var(--blue);
+ text-decoration: none;
+}
+
+section:not(.editing) .choice:hover {
+ text-decoration: underline;
+}
+
+.choice-made {
+ position: relative;
+ display: block;
+ margin: 1em 0;
+ color: var(--text);
+ text-decoration: none;
+}
+
+.choice-made:hover {
+ color: var(--blue);
+ text-decoration: underline;
+}
+
+.choice-made::before {
+ content: "undo";
+ font-family: 'Material Icons';
+ font-size: 24px;
+ line-height: 1;
+ display: block;
+ white-space: nowrap;
+ color: var(--border);
+ position: absolute;
+ left: -32px;
+ -webkit-font-feature-settings: 'liga';
+ -webkit-font-smoothing: antialiased;
+}
+
+.choice-made:hover::before {
+ color: var(--blue);
+}
+
+section textarea {
+ display: block;
+ width: 100%;
+ margin: 22px 0;
+ padding: 0px 0;
+ resize: none;
+ border: 0;
+ outline: none;
+ font-size: 16px;
+ line-height: 1.4em;
+ color: var(--text);
+ background-color: transparent;
+}
+
+section textarea:focus {
+ box-shadow: -9px 0 0 var(--bg), -12px 0 0 var(--border);
+}
+
+.editing .choice textarea {
+ padding-right: 24px;
+ color: var(--blue);
+}
+
+.choice-delete {
+ position: absolute;
+ right: 0;
+ margin-top: 3px;
+ color: var(--off);
+ cursor: pointer;
+}
+
+.choice-delete:hover {
+ color: var(--bg);
+ background-color: var(--red);
+}
+
+.choice-delete:hover ~ textarea {
+ background: var(--selbg);
+ box-shadow: -2px 0 0 5px var(--selbg), 2px 0 0 5px var(--selbg);
+}
+
+.add-choice {
+ padding: 4px 0;
+ text-align: center;
+ cursor: pointer;
+}
+
+.add-choice:hover {
+ background-color: var(--selbg);
+}
+
+#the-end {
+ color: var(--red);
+ font-size: 24px;
+}
+
+#the-end::before {
+ content: "◈"; /* ◆ ◇ ◈ */
+}
+
+#unreachable {
+ font-size: 12px;
+ font-style: oblique;
+ color: var(--red);
+}