* - {@link Ext#getClass Ext.getClass}
* - {@link Ext#getClassName Ext.getClassName}
*
+ * # Basic syntax:
+ *
+ * Ext.define(className, properties);
+ *
+ * in which `properties` is an object represent a collection of properties that apply to the class. See
+ * {@link Ext.ClassManager#create} for more detailed instructions.
+ *
+ * Ext.define('Person', {
+ * name: 'Unknown',
+ *
+ * constructor: function(name) {
+ * if (name) {
+ * this.name = name;
+ * }
+ *
+ * return this;
+ * },
+ *
+ * eat: function(foodType) {
+ * alert("I'm eating: " + foodType);
+ *
+ * return this;
+ * }
+ * });
+ *
+ * var aaron = new Person("Aaron");
+ * aaron.eat("Sandwich"); // alert("I'm eating: Sandwich");
+ *
+ * Ext.Class has a powerful set of extensible {@link Ext.Class#registerPreprocessor pre-processors} which takes care of
+ * everything related to class creation, including but not limited to inheritance, mixins, configuration, statics, etc.
+ *
+ * # Inheritance:
+ *
+ * Ext.define('Developer', {
+ * extend: 'Person',
+ *
+ * constructor: function(name, isGeek) {
+ * this.isGeek = isGeek;
+ *
+ * // Apply a method from the parent class' prototype
+ * this.callParent([name]);
+ *
+ * return this;
+ *
+ * },
+ *
+ * code: function(language) {
+ * alert("I'm coding in: " + language);
+ *
+ * this.eat("Bugs");
+ *
+ * return this;
+ * }
+ * });
+ *
+ * var jacky = new Developer("Jacky", true);
+ * jacky.code("JavaScript"); // alert("I'm coding in: JavaScript");
+ * // alert("I'm eating: Bugs");
+ *
+ * See {@link Ext.Base#callParent} for more details on calling superclass' methods
+ *
+ * # Mixins:
+ *
+ * Ext.define('CanPlayGuitar', {
+ * playGuitar: function() {
+ * alert("F#...G...D...A");
+ * }
+ * });
+ *
+ * Ext.define('CanComposeSongs', {
+ * composeSongs: function() { ... }
+ * });
+ *
+ * Ext.define('CanSing', {
+ * sing: function() {
+ * alert("I'm on the highway to hell...")
+ * }
+ * });
+ *
+ * Ext.define('Musician', {
+ * extend: 'Person',
+ *
+ * mixins: {
+ * canPlayGuitar: 'CanPlayGuitar',
+ * canComposeSongs: 'CanComposeSongs',
+ * canSing: 'CanSing'
+ * }
+ * })
+ *
+ * Ext.define('CoolPerson', {
+ * extend: 'Person',
+ *
+ * mixins: {
+ * canPlayGuitar: 'CanPlayGuitar',
+ * canSing: 'CanSing'
+ * },
+ *
+ * sing: function() {
+ * alert("Ahem....");
+ *
+ * this.mixins.canSing.sing.call(this);
+ *
+ * alert("[Playing guitar at the same time...]");
+ *
+ * this.playGuitar();
+ * }
+ * });
+ *
+ * var me = new CoolPerson("Jacky");
+ *
+ * me.sing(); // alert("Ahem...");
+ * // alert("I'm on the highway to hell...");
+ * // alert("[Playing guitar at the same time...]");
+ * // alert("F#...G...D...A");
+ *
+ * # Config:
+ *
+ * Ext.define('SmartPhone', {
+ * config: {
+ * hasTouchScreen: false,
+ * operatingSystem: 'Other',
+ * price: 500
+ * },
+ *
+ * isExpensive: false,
+ *
+ * constructor: function(config) {
+ * this.initConfig(config);
+ *
+ * return this;
+ * },
+ *
+ * applyPrice: function(price) {
+ * this.isExpensive = (price > 500);
+ *
+ * return price;
+ * },
+ *
+ * applyOperatingSystem: function(operatingSystem) {
+ * if (!(/^(iOS|Android|BlackBerry)$/i).test(operatingSystem)) {
+ * return 'Other';
+ * }
+ *
+ * return operatingSystem;
+ * }
+ * });
+ *
+ * var iPhone = new SmartPhone({
+ * hasTouchScreen: true,
+ * operatingSystem: 'iOS'
+ * });
+ *
+ * iPhone.getPrice(); // 500;
+ * iPhone.getOperatingSystem(); // 'iOS'
+ * iPhone.getHasTouchScreen(); // true;
+ * iPhone.hasTouchScreen(); // true
+ *
+ * iPhone.isExpensive; // false;
+ * iPhone.setPrice(600);
+ * iPhone.getPrice(); // 600
+ * iPhone.isExpensive; // true;
+ *
+ * iPhone.setOperatingSystem('AlienOS');
+ * iPhone.getOperatingSystem(); // 'Other'
+ *
+ * # Statics:
+ *
+ * Ext.define('Computer', {
+ * statics: {
+ * factory: function(brand) {
+ * // 'this' in static methods refer to the class itself
+ * return new this(brand);
+ * }
+ * },
+ *
+ * constructor: function() { ... }
+ * });
+ *
+ * var dellComputer = Computer.factory('Dell');
+ *
+ * Also see {@link Ext.Base#statics} and {@link Ext.Base#self} for more details on accessing
+ * static properties within class methods
+ *
* @singleton
*/
(function(Class, alias) {
* alert(MyCompany.pkg.Example === someObject); // alerts true
*
* @param {String} name
- * @param {Mixed} value
+ * @param {Object} value
*/
setNamespace: function(name, value) {
var root = Ext.global,
parts = this.parseNamespace(name),
- leaf = parts.pop(),
- i, ln, part;
+ ln = parts.length - 1,
+ leaf = parts[ln],
+ i, part;
- for (i = 0, ln = parts.length; i < ln; i++) {
+ for (i = 0; i < ln; i++) {
part = parts[i];
if (typeof part !== 'string') {
* Retrieve a class by its name.
*
* @param {String} name
- * @return {Class} class
+ * @return {Ext.Class} class
*/
get: function(name) {
if (this.classes.hasOwnProperty(name)) {
/**
* Register the alias for a class.
*
- * @param {Class/String} cls a reference to a class or a className
+ * @param {Ext.Class/String} cls a reference to a class or a className
* @param {String} alias Alias to use when referring to this class
*/
setAlias: function(cls, alias) {
* Get a reference to the class by its alias.
*
* @param {String} alias
- * @return {Class} class
+ * @return {Ext.Class} class
*/
getByAlias: function(alias) {
return this.get(this.getNameByAlias(alias));
* Get the aliases of a class by the class name
*
* @param {String} name
- * @return {Array} aliases
+ * @return {String[]} aliases
*/
getAliasesByName: function(name) {
return this.maps.nameToAliases[name] || [];
*
* {@link Ext#getClassName Ext.getClassName} is alias for {@link Ext.ClassManager#getName Ext.ClassManager.getName}.
*
- * @param {Class/Object} object
+ * @param {Ext.Class/Object} object
* @return {String} className
*/
getName: function(object) {
* {@link Ext#getClass Ext.getClass} is alias for {@link Ext.ClassManager#getClass Ext.ClassManager.getClass}.
*
* @param {Object} object
- * @return {Class} class
+ * @return {Ext.Class} class
*/
getClass: function(object) {
return object && object.self || null;
/**
* Defines a class.
*
- * Ext.ClassManager.create('My.awesome.Class', {
+ * {@link Ext#define Ext.define} and {@link Ext.ClassManager#create Ext.ClassManager.create} are almost aliases
+ * of each other, with the only exception that Ext.define allows definition of {@link Ext.Class#override overrides}.
+ * To avoid trouble, always use Ext.define.
+ *
+ * Ext.define('My.awesome.Class', {
* someProperty: 'something',
* someMethod: function() { ... }
* ...
* var myInstance = new this();
* });
*
- * {@link Ext#define Ext.define} is alias for {@link Ext.ClassManager#create Ext.ClassManager.create}.
- *
* @param {String} className The class name to create in string dot-namespaced format, for example:
- * 'My.very.awesome.Class', 'FeedViewer.plugin.CoolPager'
- * It is highly recommended to follow this simple convention:
+ * `My.very.awesome.Class`, `FeedViewer.plugin.CoolPager`. It is highly recommended to follow this simple convention:
*
* - The root and the class name are 'CamelCased'
* - Everything else is lower-cased
*
- * @param {Object} data The key - value pairs of properties to apply to this class. Property names can be of any valid
+ * @param {Object} data The key-value pairs of properties to apply to this class. Property names can be of any valid
* strings, except those in the reserved list below:
*
* - {@link Ext.Base#self self}
* - {@link Ext.Class#extend extend}
* - {@link Ext.Class#inheritableStatics inheritableStatics}
* - {@link Ext.Class#mixins mixins}
+ * - {@link Ext.Class#override override} (only when using {@link Ext#define Ext.define})
* - {@link Ext.Class#requires requires}
* - {@link Ext.Class#singleton singleton}
* - {@link Ext.Class#statics statics}
* - {@link Ext.Class#uses uses}
*
- * @param {Function} createdFn Optional callback to execute after the class is created, the execution scope of which
+ * @param {Function} [createdFn] callback to execute after the class is created, the execution scope of which
* (`this`) will be the newly created class itself.
+ *
* @return {Ext.Base}
*/
create: function(className, data, createdFn) {
registeredPostprocessors = manager.postprocessors,
index = 0,
postprocessors = [],
- postprocessor, postprocessors, process, i, ln;
+ postprocessor, process, i, ln;
delete data.postprocessors;
* {@link Ext#createByAlias Ext.createByAlias} is alias for {@link Ext.ClassManager#instantiateByAlias Ext.ClassManager.instantiateByAlias}.
*
* @param {String} alias
- * @param {Mixed} args,... Additional arguments after the alias will be passed to the
+ * @param {Object...} args Additional arguments after the alias will be passed to the
* class constructor.
* @return {Object} instance
*/
* {@link Ext#create Ext.create} is alias for {@link Ext.ClassManager#instantiate Ext.ClassManager.instantiate}.
*
* @param {String} name
- * @param {Mixed} args,... Additional arguments after the name will be passed to the class' constructor.
+ * @param {Object...} args Additional arguments after the name will be passed to the class' constructor.
* @return {Object} instance
*/
instantiate: function() {
/**
* Set the default post processors array stack which are applied to every class.
*
- * @param {String/Array} The name of a registered post processor or an array of registered names.
+ * @param {String/String[]} The name of a registered post processor or an array of registered names.
* @return {Ext.ClassManager} this
*/
setDefaultPostprocessors: function(postprocessors) {
* var allData = Ext.ClassManager.getNamesByExpression('Ext.data.*');
*
* @param {String} expression
- * @return {Array} classNames
- * @markdown
+ * @return {String[]} classNames
*/
getNamesByExpression: function(expression) {
var nameToAliasesMap = this.maps.nameToAliases,
}
};
+ var defaultPostprocessors = Manager.defaultPostprocessors;
+ //<feature classSystem.alias>
+
/**
- * @cfg {[String]} alias
+ * @cfg {String[]} alias
* @member Ext.Class
* List of short aliases for class names. Most useful for defining xtypes for widgets:
*
*/
Manager.registerPostprocessor('alias', function(name, cls, data) {
var aliases = data.alias,
- widgetPrefix = 'widget.',
- i, ln, alias;
+ i, ln;
- if (!(aliases instanceof Array)) {
- aliases = [aliases];
- }
+ delete data.alias;
for (i = 0, ln = aliases.length; i < ln; i++) {
alias = aliases[i];
- //<debug error>
- if (typeof alias !== 'string') {
- Ext.Error.raise({
- sourceClass: "Ext",
- sourceMethod: "define",
- msg: "Invalid alias of: '" + alias + "' for class: '" + name + "'; must be a valid string"
- });
- }
- //</debug>
-
this.setAlias(cls, alias);
}
-
- // This is ugly, will change to make use of parseNamespace for alias later on
- for (i = 0, ln = aliases.length; i < ln; i++) {
- alias = aliases[i];
-
- if (alias.substring(0, widgetPrefix.length) === widgetPrefix) {
- // Only the first alias with 'widget.' prefix will be used for xtype
- cls.xtype = cls.$xtype = alias.substring(widgetPrefix.length);
- break;
- }
- }
});
/**
* @cfg {Boolean} singleton
* @member Ext.Class
- * When set to true, the class will be instanciated as singleton. For example:
+ * When set to true, the class will be instantiated as singleton. For example:
*
* Ext.define('Logger', {
* singleton: true,
});
/**
- * @cfg {String/[String]} alternateClassName
+ * @cfg {String/String[]} alternateClassName
* @member Ext.Class
* Defines alternate names for this class. For example:
*
* @private
* API to be stablized
*
- * @param {Mixed} item
+ * @param {Object} item
* @param {String} namespace
*/
factory: function(item, namespace) {
* @method
* @member Ext
* @param {String} name xtype of the widget to create.
+ * @param {Object...} args arguments for the widget constructor.
* @return {Object} widget instance
*/
widget: function(name) {
*/
createByAlias: alias(Manager, 'instantiateByAlias'),
+ /**
+ * @cfg {String} override
+ * @member Ext.Class
+ *
+ * Defines an override applied to a class. Note that **overrides can only be created using
+ * {@link Ext#define}.** {@link Ext.ClassManager#create} only creates classes.
+ *
+ * To define an override, include the override property. The content of an override is
+ * aggregated with the specified class in order to extend or modify that class. This can be
+ * as simple as setting default property values or it can extend and/or replace methods.
+ * This can also extend the statics of the class.
+ *
+ * One use for an override is to break a large class into manageable pieces.
+ *
+ * // File: /src/app/Panel.js
+ *
+ * Ext.define('My.app.Panel', {
+ * extend: 'Ext.panel.Panel',
+ * requires: [
+ * 'My.app.PanelPart2',
+ * 'My.app.PanelPart3'
+ * ]
+ *
+ * constructor: function (config) {
+ * this.callSuper(arguments); // calls Ext.panel.Panel's constructor
+ * //...
+ * },
+ *
+ * statics: {
+ * method: function () {
+ * return 'abc';
+ * }
+ * }
+ * });
+ *
+ * // File: /src/app/PanelPart2.js
+ * Ext.define('My.app.PanelPart2', {
+ * override: 'My.app.Panel',
+ *
+ * constructor: function (config) {
+ * this.callSuper(arguments); // calls My.app.Panel's constructor
+ * //...
+ * }
+ * });
+ *
+ * Another use of overrides is to provide optional parts of classes that can be
+ * independently required. In this case, the class may even be unaware of the
+ * override altogether.
+ *
+ * Ext.define('My.ux.CoolTip', {
+ * override: 'Ext.tip.ToolTip',
+ *
+ * constructor: function (config) {
+ * this.callSuper(arguments); // calls Ext.tip.ToolTip's constructor
+ * //...
+ * }
+ * });
+ *
+ * The above override can now be required as normal.
+ *
+ * Ext.define('My.app.App', {
+ * requires: [
+ * 'My.ux.CoolTip'
+ * ]
+ * });
+ *
+ * Overrides can also contain statics:
+ *
+ * Ext.define('My.app.BarMod', {
+ * override: 'Ext.foo.Bar',
+ *
+ * statics: {
+ * method: function (x) {
+ * return this.callSuper([x * 2]); // call Ext.foo.Bar.method
+ * }
+ * }
+ * });
+ *
+ * IMPORTANT: An override is only included in a build if the class it overrides is
+ * required. Otherwise, the override, like the target class, is not included.
+ */
+
/**
* @method
+ *
* @member Ext
* @alias Ext.ClassManager#create
*/
- define: alias(Manager, 'create'),
+ define: function (className, data, createdFn) {
+ if (!data.override) {
+ return Manager.create.apply(Manager, arguments);
+ }
+
+ var requires = data.requires,
+ uses = data.uses,
+ overrideName = className;
+
+ className = data.override;
+
+ // hoist any 'requires' or 'uses' from the body onto the faux class:
+ data = Ext.apply({}, data);
+ delete data.requires;
+ delete data.uses;
+ delete data.override;
+
+ // make sure className is in the requires list:
+ if (typeof requires == 'string') {
+ requires = [ className, requires ];
+ } else if (requires) {
+ requires = requires.slice(0);
+ requires.unshift(className);
+ } else {
+ requires = [ className ];
+ }
+
+// TODO - we need to rework this to allow the override to not require the target class
+// and rather 'wait' for it in such a way that if the target class is not in the build,
+// neither are any of its overrides.
+//
+// Also, this should process the overrides for a class ASAP (ideally before any derived
+// classes) if the target class 'requires' the overrides. Without some special handling, the
+// overrides so required will be processed before the class and have to be bufferred even
+// in a build.
+//
+// TODO - we should probably support the "config" processor on an override (to config new
+// functionaliy like Aria) and maybe inheritableStatics (although static is now supported
+// by callSuper). If inheritableStatics causes those statics to be included on derived class
+// constructors, that probably means "no" to this since an override can come after other
+// classes extend the target.
+ return Manager.create(overrideName, {
+ requires: requires,
+ uses: uses,
+ isPartial: true,
+ constructor: function () {
+ //<debug error>
+ throw new Error("Cannot create override '" + overrideName + "'");
+ //</debug>
+ }
+ }, function () {
+ var cls = Manager.get(className);
+ if (cls.override) { // if (normal class)
+ cls.override(data);
+ } else { // else (singleton)
+ cls.self.override(data);
+ }
+
+ if (createdFn) {
+ // called once the override is applied and with the context of the
+ // overridden class (the override itself is a meaningless, name-only
+ // thing).
+ createdFn.call(cls);
+ }
+ });
+ },
/**
* @method
getClassName: alias(Manager, 'getName'),
/**
- *
- * @param {Mixed} object
+ * Returns the displayName property or className or object.
+ * When all else fails, returns "Anonymous".
+ * @param {Object} object
+ * @return {String}
*/
getDisplayName: function(object) {
if (object.displayName) {
Class.setDefaultPreprocessorPosition('className', 'first');
+ Class.registerPreprocessor('xtype', function(cls, data) {
+ var xtypes = Ext.Array.from(data.xtype),
+ widgetPrefix = 'widget.',
+ aliases = Ext.Array.from(data.alias),
+ i, ln, xtype;
+
+ data.xtype = xtypes[0];
+ data.xtypes = xtypes;
+
+ aliases = data.alias = Ext.Array.from(data.alias);
+
+ for (i = 0,ln = xtypes.length; i < ln; i++) {
+ xtype = xtypes[i];
+
+ //<debug error>
+ if (typeof xtype != 'string' || xtype.length < 1) {
+ throw new Error("[Ext.define] Invalid xtype of: '" + xtype + "' for class: '" + name + "'; must be a valid non-empty string");
+ }
+ //</debug>
+
+ aliases.push(widgetPrefix + xtype);
+ }
+
+ data.alias = aliases;
+ });
+
+ Class.setDefaultPreprocessorPosition('xtype', 'last');
+
+ Class.registerPreprocessor('alias', function(cls, data) {
+ var aliases = Ext.Array.from(data.alias),
+ xtypes = Ext.Array.from(data.xtypes),
+ widgetPrefix = 'widget.',
+ widgetPrefixLength = widgetPrefix.length,
+ i, ln, alias, xtype;
+
+ for (i = 0, ln = aliases.length; i < ln; i++) {
+ alias = aliases[i];
+
+ //<debug error>
+ if (typeof alias != 'string') {
+ throw new Error("[Ext.define] Invalid alias of: '" + alias + "' for class: '" + name + "'; must be a valid string");
+ }
+ //</debug>
+
+ if (alias.substring(0, widgetPrefixLength) === widgetPrefix) {
+ xtype = alias.substring(widgetPrefixLength);
+ Ext.Array.include(xtypes, xtype);
+
+ if (!cls.xtype) {
+ cls.xtype = data.xtype = xtype;
+ }
+ }
+ }
+
+ data.alias = aliases;
+ data.xtypes = xtypes;
+ });
+
+ Class.setDefaultPreprocessorPosition('alias', 'last');
+
})(Ext.Class, Ext.Function.alias);
git.ithinksw.org / extjs.git / blobdiff