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/*
* Ext JS Library 2.0.2
* Copyright(c) 2006-2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
/**
* @class Ext.Component
* @extends Ext.util.Observable
* <p>Base class for all Ext components. All subclasses of Component can automatically participate in the standard
* Ext component lifecycle of creation, rendering and destruction. They also have automatic support for basic hide/show
* and enable/disable behavior. Component allows any subclass to be lazy-rendered into any {@link Ext.Container} and
* to be automatically registered with the {@link Ext.ComponentMgr} so that it can be referenced at any time via
* {@link Ext#getCmp}. All visual widgets that require rendering into a layout should subclass Component (or
* {@link Ext.BoxComponent} if managed box model handling is required).</p>
* <p>Every component has a specific xtype, which is its Ext-specific type name, along with methods for checking the
* xtype like {@link #getXType} and {@link #isXType}. This is the list of all valid xtypes:</p>
* <pre>
xtype Class
------------- ------------------
box Ext.BoxComponent
button Ext.Button
colorpalette Ext.ColorPalette
component Ext.Component
container Ext.Container
cycle Ext.CycleButton
dataview Ext.DataView
datepicker Ext.DatePicker
editor Ext.Editor
editorgrid Ext.grid.EditorGridPanel
grid Ext.grid.GridPanel
paging Ext.PagingToolbar
panel Ext.Panel
progress Ext.ProgressBar
splitbutton Ext.SplitButton
tabpanel Ext.TabPanel
treepanel Ext.tree.TreePanel
viewport Ext.ViewPort
window Ext.Window
Toolbar components
---------------------------------------
toolbar Ext.Toolbar
tbbutton Ext.Toolbar.Button
tbfill Ext.Toolbar.Fill
tbitem Ext.Toolbar.Item
tbseparator Ext.Toolbar.Separator
tbspacer Ext.Toolbar.Spacer
tbsplit Ext.Toolbar.SplitButton
tbtext Ext.Toolbar.TextItem
Form components
---------------------------------------
form Ext.FormPanel
checkbox Ext.form.Checkbox
combo Ext.form.ComboBox
datefield Ext.form.DateField
field Ext.form.Field
fieldset Ext.form.FieldSet
hidden Ext.form.Hidden
htmleditor Ext.form.HtmlEditor
numberfield Ext.form.NumberField
radio Ext.form.Radio
textarea Ext.form.TextArea
textfield Ext.form.TextField
timefield Ext.form.TimeField
trigger Ext.form.TriggerField
</pre>
* @constructor
* @param {Ext.Element/String/Object} config The configuration options. If an element is passed, it is set as the internal
* element and its id used as the component id. If a string is passed, it is assumed to be the id of an existing element
* and is used as the component id. Otherwise, it is assumed to be a standard config object and is applied to the component.
*/
Ext.Component = function(config){
config = config || {};
if(config.initialConfig){
if(config.isAction){ // actions
this.baseAction = config;
}
config = config.initialConfig; // component cloning / action set up
}else if(config.tagName || config.dom || typeof config == "string"){ // element object
config = {applyTo: config, id: config.id || config};
}
/**
* This Component's initial configuration specification. Read-only.
* @type Object
* @property initialConfig
*/
this.initialConfig = config;
Ext.apply(this, config);
this.addEvents(
/**
* @event disable
* Fires after the component is disabled.
* @param {Ext.Component} this
*/
'disable',
/**
* @event enable
* Fires after the component is enabled.
* @param {Ext.Component} this
*/
'enable',
/**
* @event beforeshow
* Fires before the component is shown. Return false to stop the show.
* @param {Ext.Component} this
*/
'beforeshow',
/**
* @event show
* Fires after the component is shown.
* @param {Ext.Component} this
*/
'show',
/**
* @event beforehide
* Fires before the component is hidden. Return false to stop the hide.
* @param {Ext.Component} this
*/
'beforehide',
/**
* @event hide
* Fires after the component is hidden.
* @param {Ext.Component} this
*/
'hide',
/**
* @event beforerender
* Fires before the component is rendered. Return false to stop the render.
* @param {Ext.Component} this
*/
'beforerender',
/**
* @event render
* Fires after the component is rendered.
* @param {Ext.Component} this
*/
'render',
/**
* @event beforedestroy
* Fires before the component is destroyed. Return false to stop the destroy.
* @param {Ext.Component} this
*/
'beforedestroy',
/**
* @event destroy
* Fires after the component is destroyed.
* @param {Ext.Component} this
*/
'destroy',
/**
* @event beforestaterestore
* Fires before the state of the component is restored. Return false to stop the restore.
* @param {Ext.Component} this
* @param {Object} state The hash of state values
*/
'beforestaterestore',
/**
* @event staterestore
* Fires after the state of the component is restored.
* @param {Ext.Component} this
* @param {Object} state The hash of state values
*/
'staterestore',
/**
* @event beforestatesave
* Fires before the state of the component is saved to the configured state provider. Return false to stop the save.
* @param {Ext.Component} this
* @param {Object} state The hash of state values
*/
'beforestatesave',
/**
* @event statesave
* Fires after the state of the component is saved to the configured state provider.
* @param {Ext.Component} this
* @param {Object} state The hash of state values
*/
'statesave'
);
this.getId();
Ext.ComponentMgr.register(this);
Ext.Component.superclass.constructor.call(this);
if(this.baseAction){
this.baseAction.addComponent(this);
}
this.initComponent();
if(this.plugins){
if(Ext.isArray(this.plugins)){
for(var i = 0, len = this.plugins.length; i < len; i++){
this.plugins[i].init(this);
}
}else{
this.plugins.init(this);
}
}
if(this.stateful !== false){
this.initState(config);
}
if(this.applyTo){
this.applyToMarkup(this.applyTo);
delete this.applyTo;
}else if(this.renderTo){
this.render(this.renderTo);
delete this.renderTo;
}
};
// private
Ext.Component.AUTO_ID = 1000;
Ext.extend(Ext.Component, Ext.util.Observable, {
/**
* @cfg {String} id
* The unique id of this component (defaults to an auto-assigned id).
*/
/**
* @cfg {String/Object} autoEl
* A tag name or DomHelper spec to create an element with. This is intended to create shorthand
* utility components inline via JSON. It should not be used for higher level components which already create
* their own elements. Example usage:
* <pre><code>
{xtype:'box', autoEl: 'div', cls:'my-class'}
{xtype:'box', autoEl: {tag:'blockquote', html:'autoEl is cool!'}} // with DomHelper
</code></pre>
*/
/**
* @cfg {String} xtype
* The registered xtype to create. This config option is not used when passing
* a config object into a constructor. This config option is used only when
* lazy instantiation is being used, and a child item of a Container is being
* specified not as a fully instantiated Component, but as a <i>Component config
* object</i>. The xtype will be looked up at render time up to determine what
* type of child Component to create.<br><br>
* The predefined xtypes are listed {@link Ext.Component here}.
* <br><br>
* If you subclass Components to create your own Components, you may register
* them using {@link Ext.ComponentMgr#registerType} in order to be able to
* take advantage of lazy instantiation and rendering.
*/
/**
* @cfg {String} cls
* An optional extra CSS class that will be added to this component's Element (defaults to ''). This can be
* useful for adding customized styles to the component or any of its children using standard CSS rules.
*/
/**
* @cfg {String} style
* A custom style specification to be applied to this component's Element. Should be a valid argument to
* {@link Ext.Element#applyStyles}.
*/
/**
* @cfg {String} ctCls
* An optional extra CSS class that will be added to this component's container (defaults to ''). This can be
* useful for adding customized styles to the container or any of its children using standard CSS rules.
*/
/**
* @cfg {Object/Array} plugins
* An object or array of objects that will provide custom functionality for this component. The only
* requirement for a valid plugin is that it contain an init method that accepts a reference of type Ext.Component.
* When a component is created, if any plugins are available, the component will call the init method on each
* plugin, passing a reference to itself. Each plugin can then call methods or respond to events on the
* component as needed to provide its functionality.
*/
/**
* @cfg {Mixed} applyTo
* The id of the node, a DOM node or an existing Element corresponding to a DIV that is already present in
* the document that specifies some structural markup for this component. When applyTo is used, constituent parts of
* the component can also be specified by id or CSS class name within the main element, and the component being created
* may attempt to create its subcomponents from that markup if applicable. Using this config, a call to render() is
* not required. If applyTo is specified, any value passed for {@link #renderTo} will be ignored and the target
* element's parent node will automatically be used as the component's container.
*/
/**
* @cfg {Mixed} renderTo
* The id of the node, a DOM node or an existing Element that will be the container to render this component into.
* Using this config, a call to render() is not required.
*/
/**
* @cfg {Boolean} stateful
* A flag which causes the Component to attempt to restore the state of internal properties
* from a saved state on startup.<p>
* For state saving to work, the state manager's provider must have been set to an implementation
* of {@link Ext.state.Provider} which overrides the {@link Ext.state.Provider#set set}
* and {@link Ext.state.Provider#get get} methods to save and recall name/value pairs.
* A built-in implementation, {@link Ext.state.CookieProvider} is available.</p>
* <p>To set the state provider for the current page:</p>
* <pre><code>
Ext.state.Manager.setProvider(new Ext.state.CookieProvider());
</code></pre>
* <p>Components attempt to save state when one of the events listed in the {@link #stateEvents}
* configuration fires.</p>
* <p>You can perform extra processing on state save and restore by attaching handlers to the
* {@link #beforestaterestore}, {@link staterestore}, {@link beforestatesave} and {@link statesave} events</p>
*/
/**
* @cfg {String} stateId
* The unique id for this component to use for state management purposes (defaults to the component id).
* <p>See {@link #stateful} for an explanation of saving and restoring Component state.</p>
*/
/* //internal - to be set by subclasses
* @cfg {Array} stateEvents
* An array of events that, when fired, should trigger this component to save its state (defaults to none).
* These can be any types of events supported by this component, including browser or custom events (e.g.,
* ['click', 'customerchange']).
* <p>See {@link #stateful} for an explanation of saving and restoring Component state.</p>
*/
/**
* @cfg {String} disabledClass
* CSS class added to the component when it is disabled (defaults to "x-item-disabled").
*/
disabledClass : "x-item-disabled",
/**
* @cfg {Boolean} allowDomMove
* Whether the component can move the Dom node when rendering (defaults to true).
*/
allowDomMove : true,
/**
* @cfg {Boolean} autoShow
* True if the component should check for hidden classes (e.g. 'x-hidden' or 'x-hide-display') and remove
* them on render (defaults to false).
*/
autoShow : false,
/**
* @cfg {String} hideMode
* How this component should hidden. Supported values are "visibility" (css visibility), "offsets" (negative
* offset position) and "display" (css display) - defaults to "display".
*/
hideMode: 'display',
/**
* @cfg {Boolean} hideParent
* True to hide and show the component's container when hide/show is called on the component, false to hide
* and show the component itself (defaults to false). For example, this can be used as a shortcut for a hide
* button on a window by setting hide:true on the button when adding it to its parent container.
*/
hideParent: false,
/**
* The component's owner {@link Ext.Container} (defaults to undefined, and is set automatically when
* the component is added to a container). Read-only.
* @type Ext.Container
* @property ownerCt
*/
/**
* True if this component is hidden. Read-only.
* @type Boolean
* @property
*/
hidden : false,
/**
* True if this component is disabled. Read-only.
* @type Boolean
* @property
*/
disabled : false,
/**
* True if this component has been rendered. Read-only.
* @type Boolean
* @property
*/
rendered : false,
// private
ctype : "Ext.Component",
// private
actionMode : "el",
// private
getActionEl : function(){
return this[this.actionMode];
},
/* // protected
* Function to be implemented by Component subclasses to be part of standard component initialization flow (it is empty by default).
* <pre><code>
// Traditional constructor:
Ext.Foo = function(config){
// call superclass constructor:
Ext.Foo.superclass.constructor.call(this, config);
this.addEvents({
// add events
});
};
Ext.extend(Ext.Foo, Ext.Bar, {
// class body
}
// initComponent replaces the constructor:
Ext.Foo = Ext.extend(Ext.Bar, {
initComponent : function(){
// call superclass initComponent
Ext.Container.superclass.initComponent.call(this);
this.addEvents({
// add events
});
}
}
</code></pre>
*/
initComponent : Ext.emptyFn,
/**
* If this is a lazy rendering component, render it to its container element.
* @param {Mixed} container (optional) The element this component should be rendered into. If it is being
* applied to existing markup, this should be left off.
* @param {String/Number} position (optional) The element ID or DOM node index within the container <b>before</b>
* which this component will be inserted (defaults to appending to the end of the container)
*/
render : function(container, position){
if(!this.rendered && this.fireEvent("beforerender", this) !== false){
if(!container && this.el){
this.el = Ext.get(this.el);
container = this.el.dom.parentNode;
this.allowDomMove = false;
}
this.container = Ext.get(container);
if(this.ctCls){
this.container.addClass(this.ctCls);
}
this.rendered = true;
if(position !== undefined){
if(typeof position == 'number'){
position = this.container.dom.childNodes[position];
}else{
position = Ext.getDom(position);
}
}
this.onRender(this.container, position || null);
if(this.autoShow){
this.el.removeClass(['x-hidden','x-hide-' + this.hideMode]);
}
if(this.cls){
this.el.addClass(this.cls);
delete this.cls;
}
if(this.style){
this.el.applyStyles(this.style);
delete this.style;
}
this.fireEvent("render", this);
this.afterRender(this.container);
if(this.hidden){
this.hide();
}
if(this.disabled){
this.disable();
}
this.initStateEvents();
}
return this;
},
// private
initState : function(config){
if(Ext.state.Manager){
var state = Ext.state.Manager.get(this.stateId || this.id);
if(state){
if(this.fireEvent('beforestaterestore', this, state) !== false){
this.applyState(state);
this.fireEvent('staterestore', this, state);
}
}
}
},
// private
initStateEvents : function(){
if(this.stateEvents){
for(var i = 0, e; e = this.stateEvents[i]; i++){
this.on(e, this.saveState, this, {delay:100});
}
}
},
// private
applyState : function(state, config){
if(state){
Ext.apply(this, state);
}
},
// private
getState : function(){
return null;
},
// private
saveState : function(){
if(Ext.state.Manager){
var state = this.getState();
if(this.fireEvent('beforestatesave', this, state) !== false){
Ext.state.Manager.set(this.stateId || this.id, state);
this.fireEvent('statesave', this, state);
}
}
},
/**
* Apply this component to existing markup that is valid. With this function, no call to render() is required.
* @param {String/HTMLElement} el
*/
applyToMarkup : function(el){
this.allowDomMove = false;
this.el = Ext.get(el);
this.render(this.el.dom.parentNode);
},
/**
* Adds a CSS class to the component's underlying element.
* @param {string} cls The CSS class name to add
*/
addClass : function(cls){
if(this.el){
this.el.addClass(cls);
}else{
this.cls = this.cls ? this.cls + ' ' + cls : cls;
}
},
/**
* Removes a CSS class from the component's underlying element.
* @param {string} cls The CSS class name to remove
*/
removeClass : function(cls){
if(this.el){
this.el.removeClass(cls);
}else if(this.cls){
this.cls = this.cls.split(' ').remove(cls).join(' ');
}
},
// private
// default function is not really useful
onRender : function(ct, position){
if(this.autoEl){
if(typeof this.autoEl == 'string'){
this.el = document.createElement(this.autoEl);
}else{
var div = document.createElement('div');
Ext.DomHelper.overwrite(div, this.autoEl);
this.el = div.firstChild;
}
if (!this.el.id) {
this.el.id = this.getId();
}
}
if(this.el){
this.el = Ext.get(this.el);
if(this.allowDomMove !== false){
ct.dom.insertBefore(this.el.dom, position);
}
}
},
// private
getAutoCreate : function(){
var cfg = typeof this.autoCreate == "object" ?
this.autoCreate : Ext.apply({}, this.defaultAutoCreate);
if(this.id && !cfg.id){
cfg.id = this.id;
}
return cfg;
},
// private
afterRender : Ext.emptyFn,
/**
* Destroys this component by purging any event listeners, removing the component's element from the DOM,
* removing the component from its {@link Ext.Container} (if applicable) and unregistering it from
* {@link Ext.ComponentMgr}. Destruction is generally handled automatically by the framework and this method
* should usually not need to be called directly.
*/
destroy : function(){
if(this.fireEvent("beforedestroy", this) !== false){
this.beforeDestroy();
if(this.rendered){
this.el.removeAllListeners();
this.el.remove();
if(this.actionMode == "container"){
this.container.remove();
}
}
this.onDestroy();
Ext.ComponentMgr.unregister(this);
this.fireEvent("destroy", this);
this.purgeListeners();
}
},
// private
beforeDestroy : Ext.emptyFn,
// private
onDestroy : Ext.emptyFn,
/**
* Returns the underlying {@link Ext.Element}.
* @return {Ext.Element} The element
*/
getEl : function(){
return this.el;
},
/**
* Returns the id of this component.
* @return {String}
*/
getId : function(){
return this.id || (this.id = "ext-comp-" + (++Ext.Component.AUTO_ID));
},
/**
* Returns the item id of this component.
* @return {String}
*/
getItemId : function(){
return this.itemId || this.getId();
},
/**
* Try to focus this component.
* @param {Boolean} selectText (optional) If applicable, true to also select the text in this component
* @param {Boolean/Number} delay (optional) Delay the focus this number of milliseconds (true for 10 milliseconds)
* @return {Ext.Component} this
*/
focus : function(selectText, delay){
if(delay){
this.focus.defer(typeof delay == 'number' ? delay : 10, this, [selectText, false]);
return;
}
if(this.rendered){
this.el.focus();
if(selectText === true){
this.el.dom.select();
}
}
return this;
},
// private
blur : function(){
if(this.rendered){
this.el.blur();
}
return this;
},
/**
* Disable this component.
* @return {Ext.Component} this
*/
disable : function(){
if(this.rendered){
this.onDisable();
}
this.disabled = true;
this.fireEvent("disable", this);
return this;
},
// private
onDisable : function(){
this.getActionEl().addClass(this.disabledClass);
this.el.dom.disabled = true;
},
/**
* Enable this component.
* @return {Ext.Component} this
*/
enable : function(){
if(this.rendered){
this.onEnable();
}
this.disabled = false;
this.fireEvent("enable", this);
return this;
},
// private
onEnable : function(){
this.getActionEl().removeClass(this.disabledClass);
this.el.dom.disabled = false;
},
/**
* Convenience function for setting disabled/enabled by boolean.
* @param {Boolean} disabled
*/
setDisabled : function(disabled){
this[disabled ? "disable" : "enable"]();
},
/**
* Show this component.
* @return {Ext.Component} this
*/
show: function(){
if(this.fireEvent("beforeshow", this) !== false){
this.hidden = false;
if(this.autoRender){
this.render(typeof this.autoRender == 'boolean' ? Ext.getBody() : this.autoRender);
}
if(this.rendered){
this.onShow();
}
this.fireEvent("show", this);
}
return this;
},
// private
onShow : function(){
if(this.hideParent){
this.container.removeClass('x-hide-' + this.hideMode);
}else{
this.getActionEl().removeClass('x-hide-' + this.hideMode);
}
},
/**
* Hide this component.
* @return {Ext.Component} this
*/
hide: function(){
if(this.fireEvent("beforehide", this) !== false){
this.hidden = true;
if(this.rendered){
this.onHide();
}
this.fireEvent("hide", this);
}
return this;
},
// private
onHide : function(){
if(this.hideParent){
this.container.addClass('x-hide-' + this.hideMode);
}else{
this.getActionEl().addClass('x-hide-' + this.hideMode);
}
},
/**
* Convenience function to hide or show this component by boolean.
* @param {Boolean} visible True to show, false to hide
* @return {Ext.Component} this
*/
setVisible: function(visible){
if(visible) {
this.show();
}else{
this.hide();
}
return this;
},
/**
* Returns true if this component is visible.
*/
isVisible : function(){
return this.rendered && this.getActionEl().isVisible();
},
/**
* Clone the current component using the original config values passed into this instance by default.
* @param {Object} overrides A new config containing any properties to override in the cloned version.
* An id property can be passed on this object, otherwise one will be generated to avoid duplicates.
* @return {Ext.Component} clone The cloned copy of this component
*/
cloneConfig : function(overrides){
overrides = overrides || {};
var id = overrides.id || Ext.id();
var cfg = Ext.applyIf(overrides, this.initialConfig);
cfg.id = id; // prevent dup id
return new this.constructor(cfg);
},
/**
* Gets the xtype for this component as registered with {@link Ext.ComponentMgr}. For a list of all
* available xtypes, see the {@link Ext.Component} header. Example usage:
* <pre><code>
var t = new Ext.form.TextField();
alert(t.getXType()); // alerts 'textfield'
</code></pre>
* @return {String} The xtype
*/
getXType : function(){
return this.constructor.xtype;
},
/**
* Tests whether or not this component is of a specific xtype. This can test whether this component is descended
* from the xtype (default) or whether it is directly of the xtype specified (shallow = true). For a list of all
* available xtypes, see the {@link Ext.Component} header. Example usage:
* <pre><code>
var t = new Ext.form.TextField();
var isText = t.isXType('textfield'); // true
var isBoxSubclass = t.isXType('box'); // true, descended from BoxComponent
var isBoxInstance = t.isXType('box', true); // false, not a direct BoxComponent instance
</code></pre>
* @param {String} xtype The xtype to check for this component
* @param {Boolean} shallow (optional) False to check whether this component is descended from the xtype (this is
* the default), or true to check whether this component is directly of the specified xtype.
*/
isXType : function(xtype, shallow){
return !shallow ?
('/' + this.getXTypes() + '/').indexOf('/' + xtype + '/') != -1 :
this.constructor.xtype == xtype;
},
/**
* Returns this component's xtype hierarchy as a slash-delimited string. For a list of all
* available xtypes, see the {@link Ext.Component} header. Example usage:
* <pre><code>
var t = new Ext.form.TextField();
alert(t.getXTypes()); // alerts 'component/box/field/textfield'
</pre></code>
* @return {String} The xtype hierarchy string
*/
getXTypes : function(){
var tc = this.constructor;
if(!tc.xtypes){
var c = [], sc = this;
while(sc && sc.constructor.xtype){
c.unshift(sc.constructor.xtype);
sc = sc.constructor.superclass;
}
tc.xtypeChain = c;
tc.xtypes = c.join('/');
}
return tc.xtypes;
},
/**
* Find a container above this component at any level by a custom function. If the passed function returns
* true, the container will be returned. The passed function is called with the arguments (container, this component).
* @param {Function} fcn
* @param {Object} scope (optional)
* @return {Array} Array of Ext.Components
*/
findParentBy: function(fn) {
for (var p = this.ownerCt; (p != null) && !fn(p, this); p = p.ownerCt);
return p || null;
},
/**
* Find a container above this component at any level by xtype or class
* @param {String/Class} xtype The xtype string for a component, or the class of the component directly
* @return {Container} The found container
*/
findParentByType: function(xtype) {
return typeof xtype == 'function' ?
this.findParentBy(function(p){
return p.constructor === xtype;
}) :
this.findParentBy(function(p){
return p.constructor.xtype === xtype;
});
}
});
Ext.reg('component', Ext.Component);