/** * @class Ext.util.AbstractMixedCollection * @private */Ext.define('Ext.util.AbstractMixedCollection', { requires: ['Ext.util.Filter'], mixins: { observable: 'Ext.util.Observable' }, /** * @property {Boolean} isMixedCollection * `true` in this class to identify an object as an instantiated MixedCollection, or subclass thereof. */ isMixedCollection: true, /** * Mutation counter which is incremented upon add and remove. * * @private */ generation: 0, /** * Mutation counter for the index map which is synchronized with the collection's mutation counter * when the index map is interrogated and found to be out of sync and needed a rebuild. * * @private */ indexGeneration: 0, constructor: function(allowFunctions, keyFn) { var me = this; // Modern constructor signature using a config object if (arguments.length === 1 && Ext.isObject(allowFunctions)) { me.initialConfig = allowFunctions; Ext.apply(me, allowFunctions); } // Old constructor signature else { me.allowFunctions = allowFunctions === true; if (keyFn) { me.getKey = keyFn; } me.initialConfig = { allowFunctions: me.allowFunctions, getKey: me.getKey }; } me.items = []; me.map = {}; me.keys = []; me.indexMap = {}; me.length = 0; /** * @event clear * Fires when the collection is cleared. * @since 1.1.0 */ /** * @event add * Fires when an item is added to the collection. * @param {Number} index The index at which the item was added. * @param {Object} o The item added. * @param {String} key The key associated with the added item. * @since 1.1.0 */ /** * @event replace * Fires when an item is replaced in the collection. * @param {String} key he key associated with the new added. * @param {Object} old The item being replaced. * @param {Object} new The new item. * @since 1.1.0 */ /** * @event remove * Fires when an item is removed from the collection. * @param {Object} o The item being removed. * @param {String} key The key associated with the removed item. * @since 1.1.0 */ me.mixins.observable.constructor.call(me); }, destroy: function() { var me = this; me.items = me.map = me.keys = me.indexMap = null; me.callParent(); }, /** * @cfg {Boolean} allowFunctions Specify <code>true</code> if the {@link #addAll} * function should add function references to the collection. Defaults to * <code>false</code>. * @since 3.4.0 */ allowFunctions : false, /** * Adds an item to the collection. Fires the {@link #event-add} event when complete. * * @param {String/Object} key The key to associate with the item, or the new item. * * If a {@link #getKey} implementation was specified for this MixedCollection, * or if the key of the stored items is in a property called `id`, * the MixedCollection will be able to *derive* the key for the new item. * In this case just pass the new item in this parameter. * * @param {Object} [obj] The item to add. * * Note that when adding a value that is iterable, it must be wrapped in brackets, i.e.: * * c.add([[1, 2]]); * * This will be needed for any value that is iterable, i.e., an array, arguments object, * HTML collections, etc. * * @return {Object} The item added. * @since 1.1.0 */ add : function(key, obj) { var len = this.length, out; if (arguments.length === 1) { out = this.insert(len, key); } else { out = this.insert(len, key, obj); } return out; }, /** * A function which will be called, passing a newly added object * when the object is added without a separate id. The function * should yield the key by which that object will be indexed. * * If no key is yielded, then the object will be added, but it * cannot be accessed or removed quickly. Finding it in this * collection for interrogation or removal will require a linear * scan of this collection's items. * * The default implementation simply returns `item.id` but you can * provide your own implementation to return a different value as * in the following examples: * * // normal way * var mc = new Ext.util.MixedCollection(); * mc.add(someEl.dom.id, someEl); * mc.add(otherEl.dom.id, otherEl); * //and so on * * // using getKey * var mc = new Ext.util.MixedCollection({ * getKey: function(el){ * return el.dom.id; * } * }); * mc.add(someEl); * mc.add(otherEl); * * @param {Object} item The item for which to find the key. * @return {Object} The key for the passed item. * @since 1.1.0 * @template */ getKey : function(item) { return item.id; }, /** * Replaces an item in the collection. Fires the {@link #event-replace} event when complete. * @param {String} key The key associated with the item to replace, or the replacement item. * * If you supplied a {@link #getKey} implementation for this MixedCollection, or if the key * of your stored items is in a property called *`id`*, then the MixedCollection * will be able to <i>derive</i> the key of the replacement item. If you want to replace an item * with one having the same key value, then just pass the replacement item in this parameter. * * @param o {Object} o (optional) If the first parameter passed was a key, the item to associate * with that key. * @return {Object} The new item. * @since 1.1.0 */ replace : function(key, o) { var me = this, old, index; if (arguments.length == 1) { o = arguments[0]; key = me.getKey(o); } old = me.map[key]; if (typeof key == 'undefined' || key === null || typeof old == 'undefined') { return me.add(key, o); } me.generation++; index = me.indexOfKey(key); me.items[index] = o; me.map[key] = o; if (me.hasListeners.replace) { me.fireEvent('replace', key, old, o); } return o; }, /** * Reorders each of the items based on a mapping from old index to new index. Internally this * just translates into a sort. The 'sort' event is fired whenever reordering has * occurred. * @param {Object} mapping Mapping from old item index to new item index * * // example of moving the last of 4 items to the front of the collection * // and moving each one before it forward one * collection.reorder({ * 0: 1, * 1: 2, * 2: 3, * 3: 0, * }); */ reorder: function(mapping) { var me = this, items = me.items, index = 0, length = items.length, order = [], remaining = [], oldIndex; me.suspendEvents(); //object of {oldPosition: newPosition} reversed to {newPosition: oldPosition} for (oldIndex in mapping) { order[mapping[oldIndex]] = items[oldIndex]; } for (index = 0; index < length; index++) { if (mapping[index] == undefined) { remaining.push(items[index]); } } for (index = 0; index < length; index++) { if (order[index] == undefined) { order[index] = remaining.shift(); } } me.clear(); me.addAll(order); me.resumeEvents(); }, /** * Change the key for an existing item in the collection. If the old key * does not exist this is a no-op. * @param {Object} oldKey The old key * @param {Object} newKey The new key */ updateKey: function(oldKey, newKey) { var me = this, map = me.map, index = me.indexOfKey(oldKey), // Important: Take reference to indexMap AFTER indexOf call which may rebuild it. indexMap = me.indexMap, item; if (index > -1) { item = map[oldKey]; delete map[oldKey]; delete indexMap[oldKey]; map[newKey] = item; indexMap[newKey] = index; me.keys[index] = newKey; // indexGeneration will be in sync since we called indexOfKey // And we kept it all in sync, so now generation changes we keep the indexGeneration matched me.indexGeneration = ++me.generation; } }, /** * Adds all elements of an Array or an Object to the collection. * @param {Object/Array} objs An Object containing properties which will be added * to the collection, or an Array of values, each of which are added to the collection. * Functions references will be added to the collection if `{@link #allowFunctions}` * has been set to `true`. * @since 1.1.0 */ addAll : function(objs) { var me = this, key; if (arguments.length > 1 || Ext.isArray(objs)) { me.insert(me.length, arguments.length > 1 ? arguments : objs); } else { for (key in objs) { if (objs.hasOwnProperty(key)) { if (me.allowFunctions || typeof objs[key] != 'function') { me.add(key, objs[key]); } } } } }, /** * Executes the specified function once for every item in the collection. * The function should return a boolean value. * Returning false from the function will stop the iteration. * * @param {Function} fn The function to execute for each item. * @param {Mixed} fn.item The collection item. * @param {Number} fn.index The index of item. * @param {Number} fn.len Total length of collection. * @param {Object} scope (optional) The scope (<code>this</code> reference) * in which the function is executed. Defaults to the current item in the iteration. * * @since 1.1.0 */ each : function(fn, scope){ var items = Ext.Array.push([], this.items), // each safe for removal i = 0, len = items.length, item; for (; i < len; i++) { item = items[i]; if (fn.call(scope || item, item, i, len) === false) { break; } } }, /** * Executes the specified function once for every key in the collection, passing each * key, and its associated item as the first two parameters. * @param {Function} fn The function to execute for each item. * @param {String} fn.key The key of collection item. * @param {Mixed} fn.item The collection item. * @param {Number} fn.index The index of item. * @param {Number} fn.len Total length of collection. * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the * function is executed. Defaults to the browser window. * * @since 1.1.0 */ eachKey : function(fn, scope){ var keys = this.keys, items = this.items, i = 0, len = keys.length; for (; i < len; i++) { fn.call(scope || window, keys[i], items[i], i, len); } }, /** * Returns the first item in the collection which elicits a true return value from the * passed selection function. * @param {Function} fn The selection function to execute for each item. * @param {Mixed} fn.item The collection item. * @param {String} fn.key The key of collection item. * @param {Object} scope (optional) The scope (<code>this</code> reference) in which the * function is executed. Defaults to the browser window. * @return {Object} The first item in the collection which returned true from the selection * function, or null if none was found. */ findBy : function(fn, scope) { var keys = this.keys, items = this.items, i = 0, len = items.length; for (; i < len; i++) { if (fn.call(scope || window, items[i], keys[i])) { return items[i]; } } return null; }, //<deprecated since="0.99"> /** * Returns the first item in the collection which elicits a true return value from the passed selection function. * @deprecated 4.0 Use {@link #findBy} instead. * @since 1.1.0 */ find : function() { if (Ext.isDefined(Ext.global.console)) { Ext.global.console.warn('Ext.util.MixedCollection: find has been deprecated. Use findBy instead.'); } return this.findBy.apply(this, arguments); }, //</deprecated> /** * Inserts an item at the specified index in the collection. Fires the {@link #event-add} event when complete. * @param {Number} index The index to insert the item at. * @param {String/Object/String[]/Object[]} key The key to associate with the new item, or the item itself. * May also be an array of either to insert multiple items at once. * @param {Object/Object[]} obj (optional) If the second parameter was a key, the new item. * May also be an array to insert multiple items at once. * @return {Object} The item inserted or an array of items inserted. * @since 1.1.0 */ insert : function(index, key, obj) { var out; if (Ext.isIterable(key)) { out = this.doInsert(index, key, obj); } else { if (arguments.length > 2) { out = this.doInsert(index, [key], [obj]); } else { out = this.doInsert(index, [key]); } out = out[0]; } return out; }, // Private multi insert implementation. doInsert : function(index, keys, objects) { var me = this, itemKey, removeIndex, i, len = keys.length, deDupedLen = len, fireAdd = me.hasListeners.add, syncIndices, newKeys = {}, passedDuplicates, oldKeys, oldObjects; // External key(s) passed. We cannot reliably find an object's index using the key extraction fn. // Set a flag for use by contains, indexOf and remove if (objects != null) { me.useLinearSearch = true; } // No external keys: calculate keys array if not passed else { objects = keys; keys = new Array(len); for (i = 0; i < len; i++) { keys[i] = this.getKey(objects[i]); } } // First, remove duplicates of the keys. If a removal point is less than insertion index, decr insertion index. me.suspendEvents(); for (i = 0; i < len; i++) { itemKey = keys[i]; // Must use indexOf - map might be out of sync removeIndex = me.indexOfKey(itemKey); if (removeIndex !== -1) { if (removeIndex < index) { index--; } me.removeAt(removeIndex); } if (itemKey != null) { // If a previous new item used this key, we will have to rebuild the input arrays from the newKeys map. if (newKeys[itemKey] != null) { passedDuplicates = true; deDupedLen--; } newKeys[itemKey] = i; } } me.resumeEvents(); // Duplicate keys were detected - rebuild the objects and keys arrays from the last values associated with each unique key if (passedDuplicates) { oldKeys = keys; oldObjects = objects; keys = new Array(deDupedLen); objects = new Array(deDupedLen); i = 0; // Loop through unique key hash, properties of which point to last encountered index for that key. // Rebuild deduped objects and keys arrays. for (itemKey in newKeys) { keys[i] = oldKeys[newKeys[itemKey]]; objects[i] = oldObjects[newKeys[itemKey]]; i++; } len = deDupedLen; } // If we are appending and the indices are in sync, its cheap to kep them that way syncIndices = index === me.length && me.indexGeneration === me.generation; // Insert the new items and new keys in at the insertion point Ext.Array.insert(me.items, index, objects); Ext.Array.insert(me.keys, index, keys); me.length += len; me.generation++; if (syncIndices) { me.indexGeneration = me.generation; } for (i = 0; i < len; i++, index++) { itemKey = keys[i]; if (itemKey != null) { me.map[itemKey] = objects[i]; // If the index is still in sync, keep it that way if (syncIndices) { me.indexMap[itemKey] = index; } } if (fireAdd) { me.fireEvent('add', index, objects[i], itemKey); } } return objects; }, /** * Remove an item from the collection. * @param {Object} o The item to remove. * @return {Object} The item removed or false if no item was removed. * @since 1.1.0 */ remove : function(o) { var me = this, removeKey, index; // If // We have not been forced into using linear lookup by a usage of the 2 arg form of add // and // The key extraction function yields a key // Then use indexOfKey. This will use the indexMap - rebuilding it if necessary. if (!me.useLinearSearch && (removeKey = me.getKey(o))) { index = me.indexOfKey(removeKey); } // Otherwise we have to do it the slow way with a linear search. else { index = Ext.Array.indexOf(me.items, o); } return (index === -1) ? false : me.removeAt(index); }, /** * Remove all items in the collection. Can also be used * to remove only the items in the passed array. * @param {Array} [items] An array of items to be removed. * @return {Ext.util.MixedCollection} this object */ removeAll : function(items) { var me = this, i; if (items || me.hasListeners.remove) { // Only perform expensive item-by-item removal if there's a listener or specific items if (items) { for (i = items.length - 1; i >= 0; --i) { me.remove(items[i]); } } else { while (me.length) { me.removeAt(0); } } } else { me.length = me.items.length = me.keys.length = 0; me.map = {}; me.indexMap = {}; me.generation++; me.indexGeneration = me.generation; } }, /** * Remove an item from a specified index in the collection. Fires the {@link #event-remove} event when complete. * @param {Number} index The index within the collection of the item to remove. * @return {Object} The item removed or false if no item was removed. * @since 1.1.0 */ removeAt : function(index) { var me = this, o, key; if (index < me.length && index >= 0) { me.length--; o = me.items[index]; Ext.Array.erase(me.items, index, 1); key = me.keys[index]; if (typeof key != 'undefined') { delete me.map[key]; } Ext.Array.erase(me.keys, index, 1); if (me.hasListeners.remove) { me.fireEvent('remove', o, key); } me.generation++; return o; } return false; }, /** * Remove a range of items starting at a specified index in the collection. * Does not fire the remove event. * @param {Number} index The index within the collection of the item to remove. * @param {Number} [removeCount=1] The nuber of items to remove beginning at the specified index. * @return {Object} The last item removed or false if no item was removed. */ removeRange : function(index, removeCount) { var me = this, o, key, i, limit, syncIndices, trimming; if (index < me.length && index >= 0) { if (!removeCount) { removeCount = 1; } limit = Math.min(index + removeCount, me.length); removeCount = limit - index; // If we are removing from end and the indices are in sync, its cheap to kep them that way trimming = limit === me.length; syncIndices = trimming && me.indexGeneration === me.generation; // Loop through the to remove indices deleting from the key hashes for (i = index; i < limit; i++) { key = me.keys[i]; if (key != null) { delete me.map[key]; if (syncIndices) { delete me.indexMap[key]; } } } // Last item encountered o = me.items[i - 1]; me.length -= removeCount; me.generation++; if (syncIndices) { me.indexGeneration = me.generation; } // Chop items and keys arrays. // If trimming the trailing end, we can just truncate the array. // We can use splice directly. The IE8 bug which Ext.Array works around only affects *insertion* // http://social.msdn.microsoft.com/Forums/en-US/iewebdevelopment/thread/6e946d03-e09f-4b22-a4dd-cd5e276bf05a/ if (trimming) { me.items.length = me.keys.length = me.length; } else { me.items.splice(index, removeCount); me.keys.splice(index, removeCount); } // Return last object removed return o; } return false; }, /** * Removes an item associated with the passed key fom the collection. * @param {String} key The key of the item to remove. If `null` is passed, * all objects which yielded no key from the configured {@link #getKey} function are removed. * @return {Object} Only returned if removing at a specified key. The item removed or false if no item was removed. */ removeAtKey : function(key) { var me = this, keys = me.keys, i; // Remove objects which yielded no key from our configured getKey function if (key == null) { for (i = keys.length - 1; i >=0; i--) { if (keys[i] == null) { me.removeAt(i); } } } // Remove object at the passed key else { return me.removeAt(me.indexOfKey(key)); } }, /** * Returns the number of items in the collection. * @return {Number} the number of items in the collection. * @since 1.1.0 */ getCount : function() { return this.length; }, /** * Returns index within the collection of the passed Object. * @param {Object} o The item to find the index of. * @return {Number} index of the item. Returns -1 if not found. * @since 1.1.0 */ indexOf : function(o) { var me = this, key; if (o != null) { // If // We have not been forced into using linear lookup by a usage of the 2 arg form of add // and // The key extraction function yields a key // Then use indexOfKey. This will use the indexMap - rebuilding it if necessary. if (!me.useLinearSearch && (key = me.getKey(o))) { return this.indexOfKey(key); } // Fallback: Use linear search return Ext.Array.indexOf(me.items, o); } // No object passed return -1; }, /** * Returns index within the collection of the passed key. * @param {String} key The key to find the index of. * @return {Number} index of the key. * @since 1.1.0 */ indexOfKey : function(key) { if (!this.map.hasOwnProperty(key)) { return -1; } if (this.indexGeneration !== this.generation) { this.rebuildIndexMap(); } return this.indexMap[key]; }, rebuildIndexMap: function() { var me = this, indexMap = me.indexMap = {}, keys = me.keys, len = keys.length, i; for (i = 0; i < len; i++) { indexMap[keys[i]] = i; } me.indexGeneration = me.generation; }, /** * Returns the item associated with the passed key OR index. * Key has priority over index. This is the equivalent * of calling {@link #getByKey} first, then if nothing matched calling {@link #getAt}. * @param {String/Number} key The key or index of the item. * @return {Object} If the item is found, returns the item. If the item was not found, returns <code>undefined</code>. * If an item was found, but is a Class, returns <code>null</code>. * @since 1.1.0 */ get : function(key) { var me = this, mk = me.map[key], item = mk !== undefined ? mk : (typeof key == 'number') ? me.items[key] : undefined; return typeof item != 'function' || me.allowFunctions ? item : null; // for prototype! }, /** * Returns the item at the specified index. * @param {Number} index The index of the item. * @return {Object} The item at the specified index. */ getAt : function(index) { return this.items[index]; }, /** * Returns the item associated with the passed key. * @param {String/Number} key The key of the item. * @return {Object} The item associated with the passed key. */ getByKey : function(key) { return this.map[key]; }, /** * Returns true if the collection contains the passed Object as an item. * @param {Object} o The Object to look for in the collection. * @return {Boolean} True if the collection contains the Object as an item. * @since 1.1.0 */ contains : function(o) { var me = this, key; if (o != null) { // If // We have not been forced into using linear lookup by a usage of the 2 arg form of add // and // The key extraction function yields a key // Then use the map to determine object presence. if (!me.useLinearSearch && (key = me.getKey(o))) { return this.map[key] != null; } // Fallback: Use linear search return Ext.Array.indexOf(this.items, o) !== -1; } return false; }, /** * Returns true if the collection contains the passed Object as a key. * @param {String} key The key to look for in the collection. * @return {Boolean} True if the collection contains the Object as a key. * @since 1.1.0 */ containsKey : function(key) { return this.map.hasOwnProperty(key); }, /** * Removes all items from the collection. Fires the {@link #event-clear} event when complete. * @since 1.1.0 */ clear : function() { var me = this; // Only clear if it has ever had any content if (me.generation) { me.length = 0; me.items = []; me.keys = []; me.map = {}; me.indexMap = {}; me.generation++; me.indexGeneration = me.generation; } if (me.hasListeners.clear) { me.fireEvent('clear'); } }, /** * Returns the first item in the collection. * @return {Object} the first item in the collection.. * @since 1.1.0 */ first : function() { return this.items[0]; }, /** * Returns the last item in the collection. * @return {Object} the last item in the collection.. * @since 1.1.0 */ last : function() { return this.items[this.length - 1]; }, /** * Collects all of the values of the given property and returns their sum * @param {String} property The property to sum by * @param {String} [root] 'root' property to extract the first argument from. This is used mainly when * summing fields in records, where the fields are all stored inside the 'data' object * @param {Number} [start=0] The record index to start at * @param {Number} [end=-1] The record index to end at * @return {Number} The total */ sum: function(property, root, start, end) { var values = this.extractValues(property, root), length = values.length, sum = 0, i; start = start || 0; end = (end || end === 0) ? end : length - 1; for (i = start; i <= end; i++) { sum += values[i]; } return sum; }, /** * Collects unique values of a particular property in this MixedCollection * @param {String} property The property to collect on * @param {String} root (optional) 'root' property to extract the first argument from. This is used mainly when * summing fields in records, where the fields are all stored inside the 'data' object * @param {Boolean} allowNull (optional) Pass true to allow null, undefined or empty string values * @return {Array} The unique values */ collect: function(property, root, allowNull) { var values = this.extractValues(property, root), length = values.length, hits = {}, unique = [], value, strValue, i; for (i = 0; i < length; i++) { value = values[i]; strValue = String(value); if ((allowNull || !Ext.isEmpty(value)) && !hits[strValue]) { hits[strValue] = true; unique.push(value); } } return unique; }, /** * @private * Extracts all of the given property values from the items in the MC. Mainly used as a supporting method for * functions like sum and collect. * @param {String} property The property to extract * @param {String} root (optional) 'root' property to extract the first argument from. This is used mainly when * extracting field data from Model instances, where the fields are stored inside the 'data' object * @return {Array} The extracted values */ extractValues: function(property, root) { var values = this.items; if (root) { values = Ext.Array.pluck(values, root); } return Ext.Array.pluck(values, property); }, /** * @private * For API parity with Store's PageMap class. Buffered rendering checks if the Store has the range * required to render. The Store delegates this question to its backing data object which may be an instance * of its private PageMap class, or a MixedCollection. */ hasRange: function(start, end) { return (end < this.length); }, /** * Returns a range of items in this collection * @param {Number} start (optional) The starting index. Defaults to 0. * @param {Number} end (optional) The ending index. Defaults to the last item. * @return {Array} An array of items * @since 1.1.0 */ getRange : function(start, end){ var me = this, items = me.items, range = [], len = items.length, tmp, reverse; if (len < 1) { return range; } if (start > end) { reverse = true; tmp = start; start = end; end = tmp; } if (start < 0) { start = 0; } if (end == null || end >= len) { end = len - 1; } range = items.slice(start, end + 1); if (reverse && range.length) { range.reverse(); } return range; }, /** * <p>Filters the objects in this collection by a set of {@link Ext.util.Filter Filter}s, or by a single * property/value pair with optional parameters for substring matching and case sensitivity. See * {@link Ext.util.Filter Filter} for an example of using Filter objects (preferred). Alternatively, * MixedCollection can be easily filtered by property like this:</p> * * //create a simple store with a few people defined * var people = new Ext.util.MixedCollection(); * people.addAll([ * {id: 1, age: 25, name: 'Ed'}, * {id: 2, age: 24, name: 'Tommy'}, * {id: 3, age: 24, name: 'Arne'}, * {id: 4, age: 26, name: 'Aaron'} * ]); * * //a new MixedCollection containing only the items where age == 24 * var middleAged = people.filter('age', 24); * * @param {Ext.util.Filter[]/String} property A property on your objects, or an array of {@link Ext.util.Filter Filter} objects * @param {String/RegExp} value Either string that the property values * should start with or a RegExp to test against the property * @param {Boolean} [anyMatch=false] True to match any part of the string, not just the beginning * @param {Boolean} [caseSensitive=false] True for case sensitive comparison. * @return {Ext.util.MixedCollection} The new filtered collection * @since 1.1.0 */ filter : function(property, value, anyMatch, caseSensitive) { var filters = []; //support for the simple case of filtering by property/value if (Ext.isString(property)) { filters.push(new Ext.util.Filter({ property : property, value : value, anyMatch : anyMatch, caseSensitive: caseSensitive })); } else if (Ext.isArray(property) || property instanceof Ext.util.Filter) { filters = filters.concat(property); } // At this point we have an array of zero or more Ext.util.Filter objects to filter with, // so here we construct a function that combines these filters by ANDing them together // and filter by that. return this.filterBy(Ext.util.Filter.createFilterFn(filters)); }, /** * Filter by a function. Returns a <i>new</i> collection that has been filtered. * The passed function will be called with each object in the collection. * If the function returns true, the value is included otherwise it is filtered. * @param {Function} fn The function to be called. * @param {Mixed} fn.item The collection item. * @param {String} fn.key The key of collection item. * @param {Object} scope (optional) The scope (<code>this</code> reference) in * which the function is executed. Defaults to this MixedCollection. * @return {Ext.util.MixedCollection} The new filtered collection * @since 1.1.0 */ filterBy : function(fn, scope) { var me = this, newMC = new me.self(me.initialConfig), keys = me.keys, items = me.items, length = items.length, i; newMC.getKey = me.getKey; for (i = 0; i < length; i++) { if (fn.call(scope || me, items[i], keys[i])) { newMC.add(keys[i], items[i]); } } // The add using an external key will make the newMC think that keys cannot be reliably extracted // from objects, so that an indexOf call will always have to do a linear search. // If the flag is not set in this object, we know that the clone will not need it either. newMC.useLinearSearch = me.useLinearSearch; return newMC; }, /** * Finds the index of the first matching object in this collection by a specific property/value. * @param {String} property The name of a property on your objects. * @param {String/RegExp} value A string that the property values * should start with or a RegExp to test against the property. * @param {Number} [start=0] The index to start searching at. * @param {Boolean} [anyMatch=false] True to match any part of the string, not just the beginning. * @param {Boolean} [caseSensitive=false] True for case sensitive comparison. * @return {Number} The matched index or -1 * @since 2.3.0 */ findIndex : function(property, value, start, anyMatch, caseSensitive){ if(Ext.isEmpty(value, false)){ return -1; } value = this.createValueMatcher(value, anyMatch, caseSensitive); return this.findIndexBy(function(o){ return o && value.test(o[property]); }, null, start); }, /** * Find the index of the first matching object in this collection by a function. * If the function returns <i>true</i> it is considered a match. * @param {Function} fn The function to be called. * @param {Mixed} fn.item The collection item. * @param {String} fn.key The key of collection item. * @param {Object} [scope] The scope (<code>this</code> reference) in which the function is executed. Defaults to this MixedCollection. * @param {Number} [start=0] The index to start searching at. * @return {Number} The matched index or -1 * @since 2.3.0 */ findIndexBy : function(fn, scope, start){ var me = this, keys = me.keys, items = me.items, i = start || 0, len = items.length; for (; i < len; i++) { if (fn.call(scope || me, items[i], keys[i])) { return i; } } return -1; }, /** * Returns a regular expression based on the given value and matching options. This is used internally for finding and filtering, * and by Ext.data.Store#filter * @private * @param {String} value The value to create the regex for. This is escaped using Ext.escapeRe * @param {Boolean} anyMatch True to allow any match - no regex start/end line anchors will be added. Defaults to false * @param {Boolean} caseSensitive True to make the regex case sensitive (adds 'i' switch to regex). Defaults to false. * @param {Boolean} exactMatch True to force exact match (^ and $ characters added to the regex). Defaults to false. Ignored if anyMatch is true. * @since 3.4.0 */ createValueMatcher : function(value, anyMatch, caseSensitive, exactMatch) { if (!value.exec) { // not a regex var er = Ext.String.escapeRegex; value = String(value); if (anyMatch === true) { value = er(value); } else { value = '^' + er(value); if (exactMatch === true) { value += '$'; } } value = new RegExp(value, caseSensitive ? '' : 'i'); } return value; }, /** * Creates a shallow copy of this collection * @return {Ext.util.MixedCollection} * @since 1.1.0 */ clone : function() { var me = this, copy = new me.self(me.initialConfig); copy.add(me.keys, me.items); // The add using external keys will make the clone think that keys cannot be reliably extracted // from objects, so that an indexOf call will always have to do a linear search. // If the flag is not set in this object, we know that the clone will not need it either. copy.useLinearSearch = me.useLinearSearch; return copy; }});