/**
- * @class Ext.util.MixedCollection
- * @extends Ext.util.Observable
- * A Collection class that maintains both numeric indexes and keys and exposes events.
- * @constructor
- * @param {Boolean} allowFunctions Specify true if the {@link #addAll}
- * function should add function references to the collection. Defaults to
- * false.
- * @param {Function} keyFn A function that can accept an item of the type(s) stored in this MixedCollection
- * and return the key value for that item. This is used when available to look up the key on items that
- * were passed without an explicit key parameter to a MixedCollection method. Passing this parameter is
- * equivalent to providing an implementation for the {@link #getKey} method.
- */
-Ext.util.MixedCollection = function(allowFunctions, keyFn){
- this.items = [];
- this.map = {};
- this.keys = [];
- this.length = 0;
- this.addEvents(
- /**
- * @event clear
- * Fires when the collection is cleared.
- */
- 'clear',
- /**
- * @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.
- */
- 'add',
- /**
- * @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.
- */
- 'replace',
- /**
- * @event remove
- * Fires when an item is removed from the collection.
- * @param {Object} o The item being removed.
- * @param {String} key (optional) The key associated with the removed item.
- */
- 'remove',
- 'sort'
- );
- this.allowFunctions = allowFunctions === true;
- if(keyFn){
- this.getKey = keyFn;
+
+
+
+
+ The source code
+
+
+
+
+
+
+ /**
+ * @class Ext.util.MixedCollection
+ * <p>
+ * Represents a collection of a set of key and value pairs. Each key in the MixedCollection
+ * must be unique, the same key cannot exist twice. This collection is ordered, items in the
+ * collection can be accessed by index or via the key. Newly added items are added to
+ * the end of the collection. This class is similar to {@link Ext.util.HashMap} however it
+ * is heavier and provides more functionality. Sample usage:
+ * <pre><code>
+var coll = new Ext.util.MixedCollection();
+coll.add('key1', 'val1');
+coll.add('key2', 'val2');
+coll.add('key3', 'val3');
+
+console.log(coll.get('key1')); // prints 'val1'
+console.log(coll.indexOfKey('key3')); // prints 2
+ * </code></pre>
+ *
+ * <p>
+ * The MixedCollection also has support for sorting and filtering of the values in the collection.
+ * <pre><code>
+var coll = new Ext.util.MixedCollection();
+coll.add('key1', 100);
+coll.add('key2', -100);
+coll.add('key3', 17);
+coll.add('key4', 0);
+var biggerThanZero = coll.filterBy(function(value){
+ return value > 0;
});
-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.
- */
- getKey : function(o){
- return o.id;
- },
-
- /**
- * Replaces an item in the collection. Fires the {@link #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 derive 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.
- */
- replace : function(key, o){
- if(arguments.length == 1){
- o = arguments[0];
- key = this.getKey(o);
- }
- var old = this.map[key];
- if(typeof key == 'undefined' || key === null || typeof old == 'undefined'){
- return this.add(key, o);
- }
- var index = this.indexOfKey(key);
- this.items[index] = o;
- this.map[key] = o;
- this.fireEvent('replace', key, old, o);
- return o;
- },
-
- /**
- * 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.
- */
- addAll : function(objs){
- if(arguments.length > 1 || Ext.isArray(objs)){
- var args = arguments.length > 1 ? arguments : objs;
- for(var i = 0, len = args.length; i < len; i++){
- this.add(args[i]);
- }
- }else{
- for(var key in objs){
- if(this.allowFunctions || typeof objs[key] != 'function'){
- this.add(key, objs[key]);
- }
- }
- }
- },
-
- /**
- * Executes the specified function once for every item in the collection, passing the following arguments:
- *
- * - item : Mixed
The collection item
- * - index : Number
The item's index
- * - length : Number
The total number of items 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 {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to the current item in the iteration.
- */
- each : function(fn, scope){
- var items = [].concat(this.items); // each safe for removal
- for(var i = 0, len = items.length; i < len; i++){
- if(fn.call(scope || items[i], items[i], 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 {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to the browser window.
- */
- eachKey : function(fn, scope){
- for(var i = 0, len = this.keys.length; i < len; i++){
- fn.call(scope || window, this.keys[i], this.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 {Object} scope (optional) The scope (this 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.
- */
- find : function(fn, scope){
- for(var i = 0, len = this.items.length; i < len; i++){
- if(fn.call(scope || window, this.items[i], this.keys[i])){
- return this.items[i];
- }
- }
- return null;
- },
-
- /**
- * Inserts an item at the specified index in the collection. Fires the {@link #add} event when complete.
- * @param {Number} index The index to insert the item at.
- * @param {String} key The key to associate with the new item, or the item itself.
- * @param {Object} o (optional) If the second parameter was a key, the new item.
- * @return {Object} The item inserted.
- */
- insert : function(index, key, o){
- if(arguments.length == 2){
- o = arguments[1];
- key = this.getKey(o);
- }
- if(this.containsKey(key)){
- this.suspendEvents();
- this.removeKey(key);
- this.resumeEvents();
- }
- if(index >= this.length){
- return this.add(key, o);
- }
- this.length++;
- this.items.splice(index, 0, o);
- if(typeof key != 'undefined' && key !== null){
- this.map[key] = o;
- }
- this.keys.splice(index, 0, key);
- this.fireEvent('add', index, o, key);
- return o;
- },
-
- /**
- * 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.
- */
- remove : function(o){
- return this.removeAt(this.indexOf(o));
- },
-
- /**
- * Remove an item from a specified index in the collection. Fires the {@link #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.
- */
- removeAt : function(index){
- if(index < this.length && index >= 0){
- this.length--;
- var o = this.items[index];
- this.items.splice(index, 1);
- var key = this.keys[index];
- if(typeof key != 'undefined'){
- delete this.map[key];
- }
- this.keys.splice(index, 1);
- this.fireEvent('remove', o, key);
- return o;
- }
- return false;
- },
-
- /**
- * Removed an item associated with the passed key fom the collection.
- * @param {String} key The key of the item to remove.
- * @return {Object} The item removed or false if no item was removed.
- */
- removeKey : function(key){
- return this.removeAt(this.indexOfKey(key));
- },
-
- /**
- * Returns the number of items in the collection.
- * @return {Number} the number of items in the collection.
- */
- 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.
- */
- indexOf : function(o){
- return this.items.indexOf(o);
- },
-
- /**
- * 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.
- */
- indexOfKey : function(key){
- return this.keys.indexOf(key);
- },
-
- /**
- * Returns the item associated with the passed key OR index.
- * Key has priority over index. This is the equivalent
- * of calling {@link #key} first, then if nothing matched calling {@link #itemAt}.
- * @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 undefined.
- * If an item was found, but is a Class, returns null.
- */
- item : function(key){
- var mk = this.map[key],
- item = mk !== undefined ? mk : (typeof key == 'number') ? this.items[key] : undefined;
- return !Ext.isFunction(item) || this.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.
- */
- itemAt : 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.
- */
- key : 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.
- */
- contains : function(o){
- return this.indexOf(o) != -1;
- },
-
- /**
- * 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.
- */
- containsKey : function(key){
- return typeof this.map[key] != 'undefined';
- },
-
- /**
- * Removes all items from the collection. Fires the {@link #clear} event when complete.
- */
- clear : function(){
- this.length = 0;
- this.items = [];
- this.keys = [];
- this.map = {};
- this.fireEvent('clear');
+console.log(biggerThanZero.getCount()); // prints 2
+ * </code></pre>
+ * </p>
+ */
+Ext.define('Ext.util.MixedCollection', {
+ extend: 'Ext.util.AbstractMixedCollection',
+ mixins: {
+ sortable: 'Ext.util.Sortable'
},
- /**
- * Returns the first item in the collection.
- * @return {Object} the first item in the collection..
+ /**
+ * Creates new MixedCollection.
+ * @param {Boolean} allowFunctions Specify <tt>true</tt> if the {@link #addAll}
+ * function should add function references to the collection. Defaults to
+ * <tt>false</tt>.
+ * @param {Function} keyFn A function that can accept an item of the type(s) stored in this MixedCollection
+ * and return the key value for that item. This is used when available to look up the key on items that
+ * were passed without an explicit key parameter to a MixedCollection method. Passing this parameter is
+ * equivalent to providing an implementation for the {@link #getKey} method.
*/
- first : function(){
- return this.items[0];
+ constructor: function() {
+ var me = this;
+ me.callParent(arguments);
+ me.addEvents('sort');
+ me.mixins.sortable.initSortable.call(me);
},
- /**
- * Returns the last item in the collection.
- * @return {Object} the last item in the collection..
- */
- last : function(){
- return this.items[this.length-1];
+ doSort: function(sorterFn) {
+ this.sortBy(sorterFn);
},
- /**
- * @private
+ /**
+ * @private
+ * Performs the actual sorting based on a direction and a sorting function. Internally,
+ * this creates a temporary array of all items in the MixedCollection, sorts it and then writes
+ * the sorted array data back into this.items and this.keys
* @param {String} property Property to sort by ('key', 'value', or 'index')
* @param {String} dir (optional) Direction to sort 'ASC' or 'DESC'. Defaults to 'ASC'.
* @param {Function} fn (optional) Comparison function that defines the sort order.
* Defaults to sorting by numeric value.
*/
_sort : function(property, dir, fn){
- var i,
- len,
- dsc = String(dir).toUpperCase() == 'DESC' ? -1 : 1,
- c = [], k = this.keys, items = this.items;
-
- fn = fn || function(a, b){
- return a-b;
+ var me = this,
+ i, len,
+ dsc = String(dir).toUpperCase() == 'DESC' ? -1 : 1,
+
+ //this is a temporary array used to apply the sorting function
+ c = [],
+ keys = me.keys,
+ items = me.items;
+
+ //default to a simple sorter function if one is not provided
+ fn = fn || function(a, b) {
+ return a - b;
};
- for(i = 0, len = items.length; i < len; i++){
- c[c.length] = {key: k[i], value: items[i], index: i};
+
+ //copy all the items into a temporary array, which we will sort
+ for(i = 0, len = items.length; i < len; i++){
+ c[c.length] = {
+ key : keys[i],
+ value: items[i],
+ index: i
+ };
}
- c.sort(function(a, b){
+
+ //sort the temporary array
+ Ext.Array.sort(c, function(a, b){
var v = fn(a[property], b[property]) * dsc;
if(v === 0){
- v = (a.index < b.index ? -1 : 1);
+ v = (a.index < b.index ? -1 : 1);
}
return v;
});
- for(i = 0, len = c.length; i < len; i++){
+
+ //copy the temporary array back into the main this.items and this.keys objects
+ for(i = 0, len = c.length; i < len; i++){
items[i] = c[i].value;
- k[i] = c[i].key;
+ keys[i] = c[i].key;
}
- this.fireEvent('sort', this);
- },
- /**
- * Sorts this collection by item value with the passed comparison function.
- * @param {String} direction (optional) 'ASC' or 'DESC'. Defaults to 'ASC'.
- * @param {Function} fn (optional) Comparison function that defines the sort order.
- * Defaults to sorting by numeric value.
- */
- sort : function(dir, fn){
- this._sort('value', dir, fn);
+ me.fireEvent('sort', me);
},
- /**
- * Sorts this collection by keys.
- * @param {String} direction (optional) 'ASC' or 'DESC'. Defaults to 'ASC'.
- * @param {Function} fn (optional) Comparison function that defines the sort order.
- * Defaults to sorting by case insensitive string.
+ /**
+ * Sorts the collection by a single sorter function
+ * @param {Function} sorterFn The function to sort by
*/
- keySort : function(dir, fn){
- this._sort('key', dir, fn || function(a, b){
- var v1 = String(a).toUpperCase(), v2 = String(b).toUpperCase();
- return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
- });
- },
+ sortBy: function(sorterFn) {
+ var me = this,
+ items = me.items,
+ keys = me.keys,
+ length = items.length,
+ temp = [],
+ i;
- /**
- * Returns a range of items in this collection
- * @param {Number} startIndex (optional) The starting index. Defaults to 0.
- * @param {Number} endIndex (optional) The ending index. Defaults to the last item.
- * @return {Array} An array of items
- */
- getRange : function(start, end){
- var items = this.items;
- if(items.length < 1){
- return [];
+ //first we create a copy of the items array so that we can sort it
+ for (i = 0; i < length; i++) {
+ temp[i] = {
+ key : keys[i],
+ value: items[i],
+ index: i
+ };
}
- start = start || 0;
- end = Math.min(typeof end == 'undefined' ? this.length-1 : end, this.length-1);
- var i, r = [];
- if(start <= end){
- for(i = start; i <= end; i++) {
- r[r.length] = items[i];
- }
- }else{
- for(i = start; i >= end; i--) {
- r[r.length] = items[i];
+
+ Ext.Array.sort(temp, function(a, b) {
+ var v = sorterFn(a.value, b.value);
+ if (v === 0) {
+ v = (a.index < b.index ? -1 : 1);
}
- }
- return r;
- },
- /**
- * Filter the objects in this collection by a specific property.
- * Returns a new collection that has been filtered.
- * @param {String} property A property on your 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 (optional) True to match any part of the string, not just the beginning
- * @param {Boolean} caseSensitive (optional) True for case sensitive comparison (defaults to False).
- * @return {MixedCollection} The new filtered collection
- */
- filter : function(property, value, anyMatch, caseSensitive){
- if(Ext.isEmpty(value, false)){
- return this.clone();
- }
- value = this.createValueMatcher(value, anyMatch, caseSensitive);
- return this.filterBy(function(o){
- return o && value.test(o[property]);
+ return v;
});
- },
- /**
- * Filter by a function. Returns a new 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, it will receive the args o (the object), k (the key)
- * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to this MixedCollection.
- * @return {MixedCollection} The new filtered collection
- */
- filterBy : function(fn, scope){
- var r = new Ext.util.MixedCollection();
- r.getKey = this.getKey;
- var k = this.keys, it = this.items;
- for(var i = 0, len = it.length; i < len; i++){
- if(fn.call(scope||this, it[i], k[i])){
- r.add(k[i], it[i]);
- }
+ //copy the temporary array back into the main this.items and this.keys objects
+ for (i = 0; i < length; i++) {
+ items[i] = temp[i].value;
+ keys[i] = temp[i].key;
}
- return r;
+
+ me.fireEvent('sort', me, items, keys);
},
- /**
- * 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 (optional) The index to start searching at (defaults to 0).
- * @param {Boolean} anyMatch (optional) True to match any part of the string, not just the beginning.
- * @param {Boolean} caseSensitive (optional) True for case sensitive comparison.
- * @return {Number} The matched index or -1
+ /**
+ * 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 occured.
+ * @param {Object} mapping Mapping from old item index to new item index
*/
- findIndex : function(property, value, start, anyMatch, caseSensitive){
- if(Ext.isEmpty(value, false)){
- return -1;
+ 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];
}
- 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 true it is considered a match.
- * @param {Function} fn The function to be called, it will receive the args o (the object), k (the key).
- * @param {Object} scope (optional) The scope (this reference) in which the function is executed. Defaults to this MixedCollection.
- * @param {Number} start (optional) The index to start searching at (defaults to 0).
- * @return {Number} The matched index or -1
- */
- findIndexBy : function(fn, scope, start){
- var k = this.keys, it = this.items;
- for(var i = (start||0), len = it.length; i < len; i++){
- if(fn.call(scope||this, it[i], k[i])){
- return i;
+ for (index = 0; index < length; index++) {
+ if (mapping[index] == undefined) {
+ remaining.push(items[index]);
}
}
- return -1;
- },
- // private
- createValueMatcher : function(value, anyMatch, caseSensitive, exactMatch) {
- if (!value.exec) { // not a regex
- var er = Ext.escapeRe;
- value = String(value);
- if (anyMatch === true) {
- value = er(value);
- } else {
- value = '^' + er(value);
- if (exactMatch === true) {
- value += '$';
- }
+ for (index = 0; index < length; index++) {
+ if (order[index] == undefined) {
+ order[index] = remaining.shift();
}
- value = new RegExp(value, caseSensitive ? '' : 'i');
- }
- return value;
+ }
+
+ me.clear();
+ me.addAll(order);
+
+ me.resumeEvents();
+ me.fireEvent('sort', me);
},
- /**
- * Creates a shallow copy of this collection
- * @return {MixedCollection}
+ /**
+ * Sorts this collection by <b>key</b>s.
+ * @param {String} direction (optional) 'ASC' or 'DESC'. Defaults to 'ASC'.
+ * @param {Function} fn (optional) Comparison function that defines the sort order.
+ * Defaults to sorting by case insensitive string.
*/
- clone : function(){
- var r = new Ext.util.MixedCollection();
- var k = this.keys, it = this.items;
- for(var i = 0, len = it.length; i < len; i++){
- r.add(k[i], it[i]);
- }
- r.getKey = this.getKey;
- return r;
+ sortByKey : function(dir, fn){
+ this._sort('key', dir, fn || function(a, b){
+ var v1 = String(a).toUpperCase(), v2 = String(b).toUpperCase();
+ return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);
+ });
}
});
-/**
- * This method calls {@link #item item()}.
- * Returns the item associated with the passed key OR index. Key has priority
- * over index. This is the equivalent of calling {@link #key} first, then if
- * nothing matched calling {@link #itemAt}.
- * @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 undefined. If an item was found, but is a Class,
- * returns null.
- */
-Ext.util.MixedCollection.prototype.get = Ext.util.MixedCollection.prototype.item;
-
-
\ No newline at end of file
+
+
+