Many classes have shortcut names used when creating (instantiating) a class with a
configuration object. The shortcut name is referred to as an alias (or xtype if the
class extends Ext.Component). The alias/xtype is listed next to the class name of
applicable classes for quick reference.
Framework classes or their members may be specified as private or protected. Else,
the class / member is public. Public, protected, and private are access
descriptors used to convey how and when the class or class member should be used.
Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass.
Protected class members are stable public members intended to be used by the
owning class or its subclasses. Protected members may safely be extended via a subclass.
Private classes and class members are used internally by the framework and are not intended to be used by application developers. Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic.
static label next to the
method name. *See Static below.Below is an example class member that we can disect to show the syntax of a class member (the lookupComponent method as viewed from the Ext.button.Button class in this case).
Let's look at each part of the member row:
lookupComponent in this example)( item ) in this example)Ext.Component in this case). This may be omitted for methods that do not
return anything other than undefined or may display as multiple possible values
separated by a forward slash / signifying that what is returned may depend on the
results of the method call (i.e. a method may return a Component if a get method calls is
successful or false if unsuccessful which would be displayed as
Ext.Component/Boolean).PROTECTED in
this example - see the Flags section below)Ext.container.Container in this example). The source
class will be displayed as a blue link if the member originates from the current class
and gray if it is inherited from an ancestor or mixed-in class.view source in the example)item : Object in the example).undefined a "Returns" section
will note the type of class or object returned and a description (Ext.Component in the
example)Available since 3.4.0 - not pictured in
the example) just after the member descriptionDefaults to: false)The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon.
classInstance.method1().method2().etc();false is returned from
an event handler- Indicates a framework class
- A singleton framework class. *See the singleton flag for more information
- A component-type framework class (any class within the Ext JS framework that extends Ext.Component)
- Indicates that the class, member, or guide is new in the currently viewed version
- Indicates a class member of type config
- Indicates a class member of type property
- Indicates a class member of type
method
- Indicates a class member of type event
- Indicates a class member of type
theme variable
- Indicates a class member of type
theme mixin
- Indicates that the class, member, or guide is new in the currently viewed version
Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type (this count is updated as filters are applied). Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation.
Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference.
Your page history is kept in localstorage and displayed (using the available real estate) just below the top title bar. By default, the only search results shown are the pages matching the product / version you're currently viewing. You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. This will show all recent pages in the history bar for all products / versions.
Within the history config menu you will also see a listing of your recent page visits. The results are filtered by the "Current Product / Version" and "All" radio options. Clicking on the button will clear the history bar as well as the history kept in local storage.
If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled. When checked, the product/version for each historic page will show alongside the page name in the history bar. Hovering the cursor over the page names in the history bar will also show the product/version as a tooltip.
Both API docs and guides can be searched for using the search field at the top of the page.
On API doc pages there is also a filter input field that filters the member rows using the filter string. In addition to filtering by string you can filter the class members by access level, inheritance, and read only. This is done using the checkboxes at the top of the page.
The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes.
Clicking on an empty search field will show your last 10 searches for quick navigation.
Each API doc page (with the exception of Javascript primitives pages) has a menu view of metadata relating to that class. This metadata view will have one or more of the following:
Ext.button.Button class has an alternate class name of Ext.Button). Alternate class
names are commonly maintained for backward compatibility.Runnable examples (Fiddles) are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block. You can also toggle the collapse state of all examples using the toggle button on the top-right of the page. The toggle-all state will be remembered between page loads.
Class members are collapsed on a page by default. You can expand and collapse members using the arrow icon on the left of the member row or globally using the expand / collapse all toggle button top-right.
Viewing the docs on narrower screens or browsers will result in a view optimized for a smaller form factor. The primary differences between the desktop and "mobile" view are:
The class source can be viewed by clicking on the class name at the top of an API doc page. The source for class members can be viewed by clicking on the "view source" link on the right-hand side of the member row.
This class encapsulates a collection of DOM elements, providing methods to filter members, or to perform collective actions upon the whole set.
Although they are not listed, this class supports all of the methods of Ext.dom.Element. The methods from these classes will be performed on all the elements in this collection.
All methods return this and can be chained.
Usage:
var els = Ext.select("#some-el div.some-class", true);
// or select directly from an existing element
var el = Ext.get('some-el');
el.select('div.some-class', true);
els.setWidth(100); // all elements become 100 width
els.hide(true); // all elements fade out and hide
// or
els.setWidth(100).hide(true);
The value true causes config values to be stored on instances using a
property name prefixed with an underscore ("_") character. A value of false
stores config values as properties using their exact name (no prefix).
Defaults to:
false
Available since: 5.0.0
The value true instructs the initConfig method to only honor values for
properties declared in the config block of a class. When false, properties
that are not declared in a config block will be placed on the instance.
Defaults to:
true
Available since: 5.0.0
A reference to the Component that owns this element. This is null if there
is no direct owner.
By default this method does nothing but return the position spec passed to it. In rtl mode it is overridden to convert "l" to "r" and vice versa when required.
Defaults to:
Ext.identityFn
The Array of DOM elements which this CompositeElement encapsulates.
This will not usually be accessed in developers' code, but developers wishing to augment the capabilities of the CompositeElementLite class may use it when adding methods to the class.
For example to add the nextAll method to the class to add all following siblings of selected elements,
the code would be
Ext.override(Ext.dom.CompositeElementLite, {
nextAll: function() {
var elements = this.elements, i, l = elements.length, n, r = [], ri = -1;
// Loop through all elements in this Composite, accumulating
// an Array of all siblings.
for (i = 0; i < l; i++) {
for (n = elements[i].nextSibling; n; n = n.nextSibling) {
r[++ri] = n;
}
}
// Add all found siblings to this Composite
return this.add(r);
}
});
This object holds a key for any event that has a listener. The listener may be set directly on the instance, or on its class or a super class or on the Ext.app.EventBus. The values of this object are truthy (a non-zero number) and falsy (0 or undefined). They do not represent an exact count of listeners. The value for an event is truthy if the event must be fired and is falsy if there is no need to fire the event.
The intended use of this property is to avoid the expense of fireEvent calls when there are no listeners. This can be particularly helpful when one would otherwise have to call fireEvent hundreds or thousands of times. It is used like this:
if (this.hasListeners.foo) {
this.fireEvent('foo', this, arg1);
}
true in this class to identify an object as an instantiated CompositeElement, or subclass thereof.
Defaults to:
true
This property is set to true during the call to initConfig.
Defaults to:
false
Available since: 5.0.0
This property is set to true if this instance is the first of its class.
Defaults to:
false
Available since: 5.0.0
This value is true and is used to identify plain objects from instances of
a defined class.
Defaults to:
true
Get the reference to the current class from which this object was instantiated. Unlike Ext.Base#statics,
this.self is scope-dependent and it's meant to be used for dynamic inheritance. See Ext.Base#statics
for a detailed comparison
Ext.define('My.Cat', {
statics: {
speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
},
constructor: function() {
alert(this.self.speciesName); // dependent on 'this'
},
clone: function() {
return new this.self();
}
});
Ext.define('My.SnowLeopard', {
extend: 'My.Cat',
statics: {
speciesName: 'Snow Leopard' // My.SnowLeopard.speciesName = 'Snow Leopard'
}
});
var cat = new My.Cat(); // alerts 'Cat'
var snowLeopard = new My.SnowLeopard(); // alerts 'Snow Leopard'
var clone = snowLeopard.clone();
alert(Ext.getClassName(clone)); // alerts 'My.SnowLeopard'
Defaults to:
Base
Visibility mode constant for use with Ext.dom.Element#setVisibilityMode. Use the CSS 'display' property to hide the element.
Defaults to:
2
Visibility mode constant for use with Ext.dom.Element#setVisibilityMode. Use CSS absolute positioning and top/left offsets to hide the element.
Defaults to:
3
True to globally disable the delegated event system. The results of setting this to false are unpredictable since the Gesture publisher relies on delegated events in order to work correctly. Disabling delegated events may cause Gestures to function incorrectly or to stop working completely. Use at your own risk!
Defaults to:
true
The list of valid nodeTypes that are allowed to be wrapped
Defaults to:
{
1: 1,
// ELEMENT_NODE
9: 1
}
Visibility mode constant for use with Ext.dom.Element#setVisibilityMode. Use the CSS 'visibility' property to hide the element.
Note that in this mode, isVisible may return true for an element even though it actually has a parent element that is hidden. For this reason, and in most cases, using the OFFSETS mode is a better choice.
Defaults to:
1
Adds elements to this Composite object.
els : HTMLElement[]/Ext.dom.CompositeElementLite
Either an Array of DOM elements to add, or another Composite object who's elements should be added.
root : HTMLElement/String (optional)
The root element of the query or id of the root.
This Composite object.
Appends an after-event handler.
Same as addListener with order set to 'after'.
eventName : String/String[]/Object
The name of the event to listen for.
fn : Function/String
The method the event invokes.
scope : Object (optional)
The scope for fn.
options : Object (optional)
An object containing handler configuration.
Appends a before-event handler. Returning false from the handler will stop the event.
Same as addListener with order set to 'before'.
eventName : String/String[]/Object
The name of the event to listen for.
fn : Function/String
The method the event invokes.
scope : Object (optional)
The scope for fn.
options : Object (optional)
An object containing handler configuration.
Adds the given CSS class(es) to this Element.
names : String/String[]
The CSS classes to add separated by space, or an array of classes
prefix : String (optional)
Prefix to prepend to each class.
suffix : String (optional)
Suffix to append to each class.
This method applies a versioned, deprecation declaration to this class. This
is typically called by the deprecated config.
deprecations : Object
Adds the specified events to the list of events which this Observable may fire.
eventNames : Object/String...
Either an object with event names as properties with a value of true
or the first event name string if multiple event names are being passed as separate parameters.
Deprecated since version 2.0
It's no longer needed to add events before firing.
Appends an event handler to this object. You can review the available handlers by looking at the 'events' section of the documentation for the component you are working with.
Using the options argument, it is possible to combine different types of listeners:
A delayed, one-time listener:
container.addListener('tap', this.handleTap, this, {
single: true,
delay: 100
});
The method also allows for a single argument to be passed which is a config object containing properties which specify multiple events. For example:
container.addListener({
tap : this.onTap,
swipe: this.onSwipe,
scope: this // Important. Ensure "this" is correct during handler execution
});
One can also specify options for each event handler separately:
container.addListener({
tap : { fn: this.onTap, scope: this, single: true },
swipe: { fn: button.onSwipe, scope: button }
});
See the Events Guide for more.
eventName : String/String[]/Object
The name of the event to listen for. May also be an object who's property names are event names.
fn : Function/String
The method the event invokes. Will be called with arguments given to
fireEvent plus the options parameter described below.
scope : Object (optional)
The scope (this reference) in which the handler function is executed. If
omitted, defaults to the object which fired the event.
options : Object (optional)
An object containing handler configuration.
This object may contain any of the following properties:
scope : Object (optional)
The scope (this reference) in which the handler function is executed. If omitted, defaults to the object
which fired the event.
delay : Number (optional)
The number of milliseconds to delay the invocation of the handler after the event fires.
single : Boolean (optional)
true to add a handler to handle just the next firing of the event, and then remove itself.
order : String (optional)
The order of when the listener should be added into the listener queue.
If you set an order of before and the event you are listening to is preventable, you can return false and it will stop the event.
Available options are before, current and after.
Defaults to:
current
buffer : Number (optional)
Causes the handler to be delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place.
element : String (optional)
If this observable is a Component, allows you to add a listener onto a element of the component using the element's reference.
Ext.create('Ext.Component', {
listeners: {
element: 'element',
tap: function() {
alert('element tap!');
}
}
});
In Sencha Touch, All components have the element reference, which is the outer
most element of the component. Ext.Container also has the innerElement
element which contains all children. In most cases element is adequate.
delegate : String (optional)
For Ext.dom.Element, a simple DOM selector to filter the target or look for a descendant of the target.
Sencha Touch Components can use Ext.ComponentQuery selectors to filter child Components.
// Create a container with a two children; a button and a toolbar
var container = Ext.create('Ext.Container', {
items: [
{
xtype: 'toolbar',
docked: 'top',
title: 'My Toolbar'
},
{
xtype: 'button',
text: 'My Button'
}
]
});
container.addListener({
// Ext.Buttons have an xtype of 'button', so we use that are a selector for our delegate
delegate: 'button',
tap: function() {
alert('Button tapped!');
}
});
capture : Boolean
true to initiate capture which will fire the
listeners on the target Element before any descendant Elements. Normal events
start with the target element and propagate upward to ancestor elements, whereas
captured events propagate from the top of the DOM downward to descendant elements.
This option achieves the same result as the useCapture parameter in the standard
JavaScript addEventListener method.
order : String (optional)
The order of when the listener should be added into the listener queue.
Possible values are before, current and after.
Defaults to: 'current'
Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.
object : Ext.mixin.Observable/HTMLElement
The item to which to add a listener/listeners.
eventName : Object/String
The event name, or an object containing event name properties.
fn : Function (optional)
If the eventName parameter was an event name, this is the handler function.
scope : Object (optional)
If the eventName parameter was an event name, this is the scope in which
the handler function is executed.
options : Object (optional)
If the eventName parameter was an event name, this is the
addListener options.
Deprecated since version 2.0
All listeners are now automatically managed where necessary. Simply use addListener.
Returns the fractional portion of this element's measurement in the given dimension. (IE9+ only)
dimension : Object
Aligns the element with another element relative to the specified anchor points. If the other element is the document it aligns it to the viewport. The position parameter is optional, and can be specified in any one of the following formats:
In addition to the anchor points, the position parameter also supports the "?" character. If "?" is passed at the end of the position string, the element will attempt to align as specified, but the position will be adjusted to constrain to the viewport if necessary. Note that the element being aligned might be swapped to align to a different position than that specified in order to enforce the viewport constraints. Following are all of the supported anchor positions:
Value Description ----- ----------------------------- tl The top left corner (default) t The center of the top edge tr The top right corner l The center of the left edge c In the center of the element r The center of the right edge bl The bottom left corner b The center of the bottom edge br The bottom right corner
Example Usage:
// align el to other-el using the default positioning
// ("tl-bl", non-constrained)
el.alignTo("other-el");
// align the top left corner of el with the top right corner of other-el
// (constrained to viewport)
el.alignTo("other-el", "tr?");
// align the bottom right corner of el with the center left edge of other-el
el.alignTo("other-el", "br-l?");
// align the center of el with the bottom left corner of other-el and
// adjust the x position by -6 pixels (and the y position by 0)
el.alignTo("other-el", "c-bl", [-6, 0]);
element : Ext.util.Positionable/HTMLElement/String
The Positionable, HTMLElement, or id of the element to align to.
position : String (optional)
The position to align to
Defaults to: "tl-bl?"
offsets : Number[] (optional)
Offset the positioning by [x, y] Element animation config object
this
Appends the passed element(s) to this element
el : String/HTMLElement/Ext.dom.Element/Object
The id or element to insert or a DomHelper config
returnDom : Boolean (optional)
True to return the raw DOM element instead of Ext.dom.Element
Defaults to: false
The inserted Element.
Appends this element to the passed element.
el : String/HTMLElement/Ext.dom.Element
The new parent element. The id of the node, a DOM Node or an existing Element.
This element.
More flexible version of setStyle for setting style properties.
styles : String/Object/Function
A style specification string, e.g. "width:100px", or object in the form {width:"100px"}, or
a function which returns such a specification.
this
Tries to blur the element. Any exceptions are caught and ignored.
this
Calculates x,y coordinates specified by the anchor position on the element, adding extraX and extraY values.
anchor : String (optional)
The specified anchor position. See alignTo for details on supported anchor positions.
Defaults to: 'tl'
extraX : Number (optional)
value to be added to the x coordinate
extraY : Number (optional)
value to be added to the y coordinate
size : Object (optional)
An object containing the size to use for calculating anchor position {width: (target width), height: (target height)} (defaults to the element's current size)
[x, y] An array containing the element's x and y coordinates
Calculates the new [x,y] position to move this Positionable into a constrain region.
By default, this Positionable is constrained to be within the container it was added to, or the element it was rendered to.
Priority is given to constraining the top and left within the constraint.
An alternative constraint may be passed.
constrainTo : String/HTMLElement/Ext.dom.Element/Ext.util.Region (optional)
The Element or Ext.util.Region into which this Component is to be constrained. Defaults to the element into which this Positionable was rendered, or this Component's {@link Ext.Component#constrainTo.
proposedPosition : Number[] (optional)
A proposed [X, Y] position to test for validity
and to coerce into constraints instead of using this Positionable's current position.
local : Boolean (optional)
The proposedPosition is local (relative to floatParent if a floating Component)
proposedSize : Number[] (optional)
A proposed [width, height] size to use when calculating
constraints instead of using this Positionable's current size.
If the element needs to be translated, the new [X, Y] position within
constraints if possible, giving priority to keeping the top and left edge in the constrain region.
Otherwise, false.
Call the "parent" method of the current method. That is the method previously overridden by derivation or by an override (see Ext#define).
Ext.define('My.Base', {
constructor: function (x) {
this.x = x;
},
statics: {
method: function (x) {
return x;
}
}
});
Ext.define('My.Derived', {
extend: 'My.Base',
constructor: function () {
this.callParent([21]);
}
});
var obj = new My.Derived();
alert(obj.x); // alerts 21
This can be used with an override as follows:
Ext.define('My.DerivedOverride', {
override: 'My.Derived',
constructor: function (x) {
this.callParent([x*2]); // calls original My.Derived constructor
}
});
var obj = new My.Derived();
alert(obj.x); // now alerts 42
This also works with static methods.
Ext.define('My.Derived2', {
extend: 'My.Base',
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Base.method
}
}
});
alert(My.Base.method(10)); // alerts 10
alert(My.Derived2.method(10)); // alerts 20
Lastly, it also works with overridden static methods.
Ext.define('My.Derived2Override', {
override: 'My.Derived2',
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Derived2.method
}
}
});
alert(My.Derived2.method(10); // now alerts 40
To override a method and replace it and also call the superclass method, use callSuper. This is often done to patch a method to fix a bug.
args : Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callParent(arguments)
Returns the result of calling the parent method
This method is used by an override to call the superclass method but bypass any overridden method. This is often done to "patch" a method that contains a bug but for whatever reason cannot be fixed directly.
Consider:
Ext.define('Ext.some.Class', {
method: function () {
console.log('Good');
}
});
Ext.define('Ext.some.DerivedClass', {
extend: 'Ext.some.Class',
method: function () {
console.log('Bad');
// ... logic but with a bug ...
this.callParent();
}
});
To patch the bug in Ext.some.DerivedClass.method, the typical solution is to create an
override:
Ext.define('App.patches.DerivedClass', {
override: 'Ext.some.DerivedClass',
method: function () {
console.log('Fixed');
// ... logic but with bug fixed ...
this.callSuper();
}
});
The patch method cannot use callParent to call the superclass method since
that would call the overridden method containing the bug. In other words, the
above patch would only produce "Fixed" then "Good" in the console log, whereas,
using callParent would produce "Fixed" then "Bad" then "Good".
args : Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callSuper(arguments)
Returns the result of calling the superclass method
Centers the Element in either the viewport, or another Element.
centerIn : String/HTMLElement/Ext.dom.Element
element in which to center the element.
actionFn : Object
eventName : Object
fn : Object
scope : Object
options : Object
order : Object
Selects a single direct child based on the passed CSS selector (the selector should not contain an id).
selector : String
The CSS selector.
returnDom : Boolean (optional)
true to return the DOM node instead of Ext.dom.Element.
Defaults to: false
The child Ext.dom.Element (or DOM node if returnDom is true)
Removes all elements from this Composite.
removeDom : Boolean (optional)
True to also remove the elements from the document.
Returns true if this composite contains the passed element
el : String/HTMLElement/Ext.dom.Element/Number
The id of an element, or an Ext.Element, or an HtmlElement to find within the composite collection.
Creates the passed DomHelper config and appends it to this element or optionally inserts it before the passed child element.
config : Object
DomHelper element config object. If no tag is specified (e.g., {tag:'input'}) then a div will be automatically generated with the specified attributes.
insertBefore : HTMLElement (optional)
a child element of this element
returnDom : Boolean (optional)
true to return the dom node instead of creating an Element
Defaults to: false
The new child element
Creates an event handling function which re-fires the event from this object as the passed event name.
newName : String
Creates an iframe shim for this element to keep windowed objects from showing through.
The new shim element
Translates an element using CSS 3 in 2D.
Deprecated
cssTranslate
This method has been REMOVED since 5.0.0
This method is called to cleanup an object and its resources. After calling this method, the object should not be used any further.
name : Object
fn : Object
scope : Object
options : Object
order : Object
Selects a single child at any depth below this element based on the passed CSS selector (the selector should not contain an id).
Use getById if you need to get a reference to a child element via id.
selector : String
The CSS selector
returnDom : Boolean (optional)
true to return the DOM node instead of Ext.dom.Element
Defaults to: false
The child Ext.dom.Element (or DOM node if returnDom is true)
Calls the passed function for each element in this composite.
fn : Function
The function to call.
el : Ext.dom.Element
The current Element in the iteration. This is the flyweight (shared) Ext.dom.Element instance, so if you require a a reference to the dom node, use el.dom.
c : Ext.dom.CompositeElementLite
This Composite object.
index : Number
The zero-based index in the iteration.
scope : Object (optional)
The scope (this reference) in which the function is executed. Defaults to the Element.
this
Enables events fired by this Observable to bubble up an owner hierarchy by calling this.getBubbleTarget() if
present. There is no implementation in the Observable base class.
events : String/String[]
The event name to bubble, or an Array of event names.
Clears this Composite and adds the elements passed.
els : HTMLElement[]/Ext.dom.CompositeElementLite
Either an array of DOM elements, or another Composite from which to fill this Composite.
this
Filters this composite to only elements that match the passed selector.
selector : String/Function
A string CSS selector or a comparison function. The comparison function will be called with the following arguments:
el : Ext.dom.Element
The current DOM element.
index : Number
The current index within the collection.
this
Looks at this node and then at parent nodes for a match of the passed simple selector.
selector : String
The simple selector to test. See Ext.dom.Query for information about simple selectors.
limit : Number/String/HTMLElement/Ext.dom.Element (optional)
The max depth to search as a number or an element which causes the upward traversal to stop and is not considered for inclusion as the result. (defaults to 50 || document.documentElement)
returnEl : Boolean (optional)
True to return a Ext.dom.Element object instead of DOM node
Defaults to: false
The matching DOM node (or null if no match was found)
Looks at parent nodes for a match of the passed simple selector.
selector : String
The simple selector to test. See Ext.dom.Query for information about simple selectors.
limit : Number/String/HTMLElement/Ext.dom.Element (optional)
The max depth to search as a number or an element which causes the upward traversal to stop and is not considered for inclusion as the result. (defaults to 50 || document.documentElement)
returnEl : Boolean (optional)
True to return a Ext.dom.Element object instead of DOM node
Defaults to: false
The matching DOM node (or null if no match was found)
Fires the specified event with the passed parameters and execute a function (action)
at the end if there are no listeners that return false.
eventName : String
The name of the event to fire.
args : Array
Arguments to pass to handers.
fn : Function
Action.
scope : Object
Scope of fn.
Fires the specified event with the passed parameters (minus the event name, plus the options object passed
to addListener).
The first argument is the name of the event. Every other argument passed will be available when you listen for the event.
Firstly, we set up a listener for our new event.
this.on('myevent', function(arg1, arg2, arg3, arg4, options, e) {
console.log(arg1); // true
console.log(arg2); // 2
console.log(arg3); // { test: 'foo' }
console.log(arg4); // 14
console.log(options); // the options added when adding the listener
console.log(e); // the event object with information about the event
});
And then we can fire off the event.
this.fireEvent('myevent', true, 2, { test: 'foo' }, 14);
An event may be set to bubble up an Observable parent hierarchy by calling enableBubble.
eventName : String
The name of the event to fire.
args : Object...
Variable number of parameters are passed to handlers.
Returns false if any of the handlers return false.
Fires the specified event with the passed parameter list.
An event may be set to bubble up an Observable parent hierarchy (See Ext.Component#getBubbleTarget) by calling enableBubble.
eventName : String
The name of the event to fire.
args : Object[]
An array of parameters which are passed to handlers.
returns false if any of the handlers return false otherwise it returns true.
Tries to focus the element. Any exceptions are caught and ignored.
defer : Number (optional)
Milliseconds to defer the focus
this
Gets the x,y coordinates to align this element with another element. See alignTo for more info on the supported position values.
element : Ext.util.Positionable/HTMLElement/String
The Positionable, HTMLElement, or id of the element to align to.
position : String (optional)
The position to align to
Defaults to: "tl-bl?"
offsets : Number[] (optional)
Offset the positioning by [x, y]
[x, y]
Gets the x,y coordinates of an element specified by the anchor position on the element.
el : Ext.dom.Element
The element
anchor : String (optional)
The specified anchor position. See alignTo for details on supported anchor positions.
Defaults to: 'tl'
local : Boolean (optional)
True to get the local (element top/left-relative) anchor position instead of page coordinates
size : Object (optional)
An object containing the size to use for calculating anchor position {width: (target width), height: (target height)} (defaults to the element's current size)
[x, y] An array containing the element's x and y coordinates
Gets the x,y coordinates specified by the anchor position on the element.
anchor : String (optional)
The specified anchor position. See alignTo for details on supported anchor positions.
Defaults to: 'tl'
local : Boolean (optional)
True to get the local (element top/left-relative) anchor position instead of page coordinates
size : Object (optional)
An object containing the size to use for calculating anchor position {width: (target width), height: (target height)} (defaults to the element's current size)
[x, y] An array containing the element's x and y coordinates
Returns the value of an attribute from the element's underlying DOM node.
name : String
The attribute name.
namespace : String (optional)
The namespace in which to look for the attribute.
The attribute value.
Returns the size of the element's borders and padding.
an object with the following numeric properties
Gets the width of the border(s) for the specified side(s)
side : String
Can be t, l, r, b or any combination of those to add
multiple values. For example, passing 'lr' would get the border left
width + the border right width.
The width of the sides passed added together
Gets the bottom Y coordinate of the element (element Y position + element height)
local : Boolean
True to get the local css position instead of page coordinate
Return an object defining the area of this Element which can be passed to setBox to set another Element's size/location to match this element.
contentBox : Boolean (optional)
If true a box for the content of the element is returned.
local : Boolean (optional)
If true the element's left and top relative to its
offsetParent are returned instead of page x/y.
An object in the format
Returns a child element of this element given its id.
id : String
The id of the desired child element.
asDom : Boolean (optional)
True to return the DOM element, false to return a wrapped Element object.
Defaults to: false
Returns a specified config property value. If the name parameter is not passed, all current configuration options will be returned as key value pairs.
name : String (optional)
The name of the config property to get.
peek : Boolean (optional)
true to peek at the raw value without calling the getter.
Defaults to: false
The config property value.
Returns the [X, Y] vector by which this Positionable's element must be translated to make a best
attempt to constrain within the passed constraint. Returns false if the element
does not need to be moved.
Priority is given to constraining the top and left within the constraint.
The constraint may either be an existing element into which the element is to be constrained, or a Ext.util.Region into which this element is to be constrained.
By default, any extra shadow around the element is not included in the constrain calculations - the edges
of the element are used as the element bounds. To constrain the shadow within the constrain region, set the
constrainShadow property on this element to true.
constrainTo : Ext.util.Positionable/HTMLElement/String/Ext.util.Region (optional)
The Positionable, HTMLElement, element id, or Region into which the element is to be constrained.
proposedPosition : Number[] (optional)
A proposed [X, Y] position to test for validity
and to produce a vector for instead of using the element's current position
proposedSize : Number[] (optional)
A proposed [width, height] size to constrain
instead of using the element's current size
If the element needs to be translated, an [X, Y]
vector by which this element must be translated. Otherwise, false.
Returns the innerHTML of an Element or an empty string if the element's
dom no longer exists.
Deprecated since version 5.0.0
Please use getHtml instead.
Returns the offset height of the element.
contentHeight : Boolean (optional)
true to get the height minus borders and padding.
The element's height.
Returns the innerHTML of an Element or an empty string if the element's
dom no longer exists.
Retrieves the id of this component. Will autogenerate an id if one has not already been set.
id
Returns the initial configuration passed to constructor when instantiating this class.
name : String (optional)
Name of the config option to return.
The full config object or a single config value
when name parameter specified.
Gets the left X coordinate
local : Boolean
True to get the local css position instead of page coordinate
Returns the x coordinate of this element reletive to its offsetParent.
The local x coordinate
Returns the x and y coordinates of this element relative to its offsetParent.
The local XY position of the element
Returns the y coordinate of this element reletive to its offsetParent.
The local y coordinate
Returns an object with properties top, left, right and bottom representing the margins of this element unless sides is passed, then it returns the calculated width of the sides (see getPadding).
sides : String (optional)
Any combination of 'l', 'r', 't', 'b' to get the sum of those sides.
Returns the offsets of this element from the passed element. The element must both be part of the DOM tree and not have display:none to have page coordinates.
offsetsTo : Ext.util.Positionable/HTMLElement/String
The Positionable, HTMLElement, or element id to get get the offsets from.
The XY page offsets (e.g. [100, -200])
Retrieves the height of the element account for the top and bottom margins.
Deprecated
getOuterHeight
This method has been REMOVED since 5.0.0
Retrieves the width of the element accounting for the left and right margins.
Deprecated
getOuterWidth
This method has been REMOVED since 5.0.0
Gets the width of the padding(s) for the specified side(s).
side : String
Can be t, l, r, b or any combination of those to add
multiple values. For example, passing 'lr' would get the padding left +
the padding right.
The padding of the sides passed added together.
Returns an object defining the area of this Element which can be passed to Ext.util.Positionable#setBox to set another Element's size/location to match this element.
asRegion : Boolean (optional)
If true an Ext.util.Region will be returned
box An object in the following format:
{
left: <Element's X position>,
top: <Element's Y position>,
width: <Element's width>,
height: <Element's height>,
bottom: <Element's lower bound>,
right: <Element's rightmost bound>
}
The returned object may also be addressed as an Array where index 0 contains the X position and index 1 contains the Y position. So the result may also be used for setXY
Deprecated since version 5.0.0
use Ext.util.Positionable#getBox to get a box object, and
Ext.util.Positionable#getRegion to get a Ext.util.Region.
Returns a region object that defines the area of this element.
A Region containing "top, left, bottom, right" properties.
Gets the right X coordinate of the element (element X position + element width)
local : Boolean
True to get the local css position instead of page coordinates
Gets the Scroller instance of the first parent that has one.
Deprecated
getScrollParent
This method has been REMOVED since 5.0.0
Returns the size of the element.
contentSize : Boolean (optional)
true to get the width/size minus borders and padding.
An object containing the element's size:
Returns a named style property based on computed/currentStyle (primary) and inline-style if primary is not available.
property : String/String[]
The style property (or multiple property names in an array) whose value is returned.
inline : Boolean (optional)
if true only inline styles will be returned.
Defaults to: false
The current value of the style property for this element (or a hash of named style values if multiple property arguments are requested).
Returns the width in pixels of the passed text, or the width of the text in this Element.
text : String
The text to measure. Defaults to the innerHTML of the element.
min : Number (optional)
The minumum value to return.
max : Number (optional)
The maximum value to return.
The text width in pixels.
Gets the top Y coordinate
local : Boolean
True to get the local css position instead of page coordinates
Returns the value of the value attribute.
asNumber : Boolean
true to parse the value as a number.
Returns the content region of this element. That is the region within the borders and padding.
A Region containing "top, left, bottom, right" member data.
Returns the dimensions of the element available to lay content out in. For most elements this is the clientHeight/clientWidth. If the element is the document/document.body the window's innerHeight/innerWidth is returned
If the element (or any ancestor element) has CSS style display: none, the
dimensions will be zero.
Object describing width and height.
Returns the offset width of the element.
contentWidth : Boolean (optional)
true to get the width minus borders and padding.
The element's width.
Checks if the specified CSS class exists on this element's DOM node.
name : String
The CSS class to check for.
true if the class exists, else false.
Checks to see if this object has any listeners for a specified event
eventName : String
The name of the event to check for
True if the event is being listened for, else false
Hide this element - Uses display mode to determine whether to use "display", "visibility", or "offsets". See setVisible.
this
Find the index of the passed element within the composite collection.
el : String/HTMLElement/Ext.dom.Element/Number
The id of an element, or an Ext.dom.Element, or an HtmlElement to find within the composite collection.
The index of the passed Ext.dom.Element in the composite collection, or -1 if not found.
Initialize configuration for this class. a typical example:
Ext.define('My.awesome.Class', {
// The default config
config: {
name: 'Awesome',
isAwesome: true
},
constructor: function(config) {
this.initConfig(config);
}
});
var awesome = new My.awesome.Class({
name: 'Super Awesome'
});
alert(awesome.getName()); // 'Super Awesome'
instanceConfig : Object
this
Inserts this element after the passed element in the DOM.
el : String/HTMLElement/Ext.dom.Element
The element to insert after.
The id of the node, a DOM Node or an existing Element.
This element.
Inserts this element before the passed element in the DOM.
el : String/HTMLElement/Ext.dom.Element
The element before which this element will be inserted. The id of the node, a DOM Node or an existing Element.
This element.
Inserts (or creates) an element as the first child of this element
el : String/HTMLElement/Ext.dom.Element/Object
The id or element to insert or a DomHelper config to create and insert
returnDom : Boolean (optional)
True to return the raw DOM element instead of Ext.dom.Element
Defaults to: false
The new child
Inserts an html fragment into this element
where : String
Where to insert the html in relation to this element - beforeBegin, afterBegin, beforeEnd, afterEnd. See Ext.dom.Helper#insertHtml for details.
html : String
The HTML fragment
returnEl : Boolean (optional)
True to return an Ext.dom.Element
Defaults to: false
The inserted node (or nearest related if more than 1 inserted)
Inserts (or creates) the passed element (or DomHelper config) as a sibling of this element
el : String/HTMLElement/Ext.dom.Element/Object/Array
The id, element to insert or a DomHelper config to create and insert or an array of any of those.
where : String (optional)
'before' or 'after'
Defaults to: 'before'
returnDom : Boolean (optional)
True to return the raw DOM element instead of Ext.dom.Element
Defaults to: false
The inserted Element. If an array is passed, the last inserted element is returned.
Returns true if this element matches the passed simple selector
(e.g. 'div.some-class' or 'span:first-child').
selector : String/Function
The simple selector to test or a function which is passed
candidate nodes, and should return true for nodes which match.
true if this element matches the selector, else false.
Returns true if this element is an ancestor of the passed element
el : String/HTMLElement/Ext.dom.Element
The element or id of the element to search for in this elements descendants.
Determines if this element is a descendant of the passed in Element.
Deprecated
isDescendent
This method has been REMOVED since 5.0.0
Checks if the current value of a style is equal to a given value.
style : String
property whose value is returned.
value : String
to check against.
true for when the current value equals the given value.
Checks if all events, or a specific event, is suspended.
eventName : String (optional)
The name of the specific event to check
true if events are suspended
Returns true if the value of the given property is visually transparent. This
may be due to a 'transparent' style value or an rgba value with 0 in the alpha
component.
prop : String
The style property whose value is to be tested.
true if the style property is visually transparent.
Checks whether the element is currently visible using both visibility and display properties.
deep : Boolean (optional)
True to walk the dom and see if parent elements are hidden.
If false, the function only checks the visibility of the element itself and it may return
true even though a parent is not visible.
Defaults to: false
true if the element is currently visible, else false
Returns a flyweight Element of the dom element object at the specified index.
index : Number
Adds a "destroyable" object to an internal list of objects that will be destroyed
when this instance is destroyed (via destroy).
name : String
value : Object
The value passed.
Alias for addManagedListener. Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.
object : Ext.mixin.Observable/HTMLElement
The item to which to add a listener/listeners.
eventName : Object/String
The event name, or an object containing event name properties.
fn : Function (optional)
If the eventName parameter was an event name, this is the handler function.
scope : Object (optional)
If the eventName parameter was an event name, this is the scope in which
the handler function is executed.
options : Object (optional)
If the eventName parameter was an event name, this is the
addListener options.
Deprecated since version 2.0.0
This is now done automatically
Move the element relative to its current position.
direction : String
Possible values are:
"l" (or "left")"r" (or "right")"t" (or "top", or "up")"b" (or "bottom", or "down")distance : Number
How far to move the element in pixels
Alias for removeManagedListener. Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.
object : Ext.mixin.Observable/HTMLElement
The item to which to add a listener/listeners.
eventName : Object/String
The event name, or an object containing event name properties.
fn : Function (optional)
If the eventName parameter was an event name, this is the handler function.
scope : Object (optional)
If the eventName parameter was an event name, this is the scope in which
the handler function is executed.
Deprecated since version 2.0.0
This is now done automatically
Gets the next sibling, skipping text nodes
selector : String (optional)
Find the next sibling that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.
returnDom : Boolean (optional)
true to return a raw dom node instead of an Ext.dom.Element
Defaults to: false
The next sibling or null
Alias for addListener. Appends an event handler to this object. You can review the available handlers by looking at the 'events' section of the documentation for the component you are working with.
Using the options argument, it is possible to combine different types of listeners:
A delayed, one-time listener:
container.addListener('tap', this.handleTap, this, {
single: true,
delay: 100
});
The method also allows for a single argument to be passed which is a config object containing properties which specify multiple events. For example:
container.addListener({
tap : this.onTap,
swipe: this.onSwipe,
scope: this // Important. Ensure "this" is correct during handler execution
});
One can also specify options for each event handler separately:
container.addListener({
tap : { fn: this.onTap, scope: this, single: true },
swipe: { fn: button.onSwipe, scope: button }
});
See the Events Guide for more.
eventName : String/String[]/Object
The name of the event to listen for. May also be an object who's property names are event names.
fn : Function/String
The method the event invokes. Will be called with arguments given to
fireEvent plus the options parameter described below.
scope : Object (optional)
The scope (this reference) in which the handler function is executed. If
omitted, defaults to the object which fired the event.
options : Object (optional)
An object containing handler configuration.
This object may contain any of the following properties:
scope : Object (optional)
The scope (this reference) in which the handler function is executed. If omitted, defaults to the object
which fired the event.
delay : Number (optional)
The number of milliseconds to delay the invocation of the handler after the event fires.
single : Boolean (optional)
true to add a handler to handle just the next firing of the event, and then remove itself.
order : String (optional)
The order of when the listener should be added into the listener queue.
If you set an order of before and the event you are listening to is preventable, you can return false and it will stop the event.
Available options are before, current and after.
Defaults to:
current
buffer : Number (optional)
Causes the handler to be delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place.
element : String (optional)
If this observable is a Component, allows you to add a listener onto a element of the component using the element's reference.
Ext.create('Ext.Component', {
listeners: {
element: 'element',
tap: function() {
alert('element tap!');
}
}
});
In Sencha Touch, All components have the element reference, which is the outer
most element of the component. Ext.Container also has the innerElement
element which contains all children. In most cases element is adequate.
delegate : String (optional)
For Ext.dom.Element, a simple DOM selector to filter the target or look for a descendant of the target.
Sencha Touch Components can use Ext.ComponentQuery selectors to filter child Components.
// Create a container with a two children; a button and a toolbar
var container = Ext.create('Ext.Container', {
items: [
{
xtype: 'toolbar',
docked: 'top',
title: 'My Toolbar'
},
{
xtype: 'button',
text: 'My Button'
}
]
});
container.addListener({
// Ext.Buttons have an xtype of 'button', so we use that are a selector for our delegate
delegate: 'button',
tap: function() {
alert('Button tapped!');
}
});
capture : Boolean
true to initiate capture which will fire the
listeners on the target Element before any descendant Elements. Normal events
start with the target element and propagate upward to ancestor elements, whereas
captured events propagate from the top of the DOM downward to descendant elements.
This option achieves the same result as the useCapture parameter in the standard
JavaScript addEventListener method.
order : String (optional)
The order of when the listener should be added into the listener queue.
Possible values are before, current and after.
Defaults to: 'current'
Alias for addAfterListener. Appends an after-event handler.
Same as addListener with order set to 'after'.
eventName : String/String[]/Object
The name of the event to listen for.
fn : Function/String
The method the event invokes.
scope : Object (optional)
The scope for fn.
options : Object (optional)
An object containing handler configuration.
Alias for addBeforeListener.
Appends a before-event handler. Returning false from the handler will stop the event.
Same as addListener with order set to 'before'.
eventName : String/String[]/Object
The name of the event to listen for.
fn : Function/String
The method the event invokes.
scope : Object (optional)
The scope for fn.
options : Object (optional)
An object containing handler configuration.
Gets the parent node for this element, optionally chaining up trying to match a selector
selector : String (optional)
Find a parent node that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.
returnDom : Boolean (optional)
True to return a raw dom node instead of an Ext.dom.Element
Defaults to: false
The parent node or null
Initializes positioning on this element. If a desired position is not passed, it will make the the element positioned relative IF it is not already positioned.
pos : String (optional)
Positioning to use "relative", "absolute" or "fixed"
zIndex : Number (optional)
The zIndex to apply
x : Number (optional)
Set the page X position
y : Number (optional)
Set the page Y position
Gets the previous sibling, skipping text nodes
selector : String (optional)
Find the previous sibling that matches the passed simple selector. See Ext.dom.Query for information about simple selectors.
returnDom : Boolean (optional)
true to return a raw DOM node instead of an Ext.dom.Element
Defaults to: false
The previous sibling or null
Removes all listeners for this object.
Deprecated since version 5.0.0
Please use clearListeners instead.
Selects child nodes based on the passed CSS selector. Delegates to document.querySelectorAll. More information can be found at http://www.w3.org/TR/css3-selectors/
All selectors, attribute filters and pseudos below can be combined infinitely
in any order. For example div.foo:nth-child(odd)[@foo=bar].bar:first would be
a perfectly valid selector.
The use of @ and quotes are optional. For example, div[@foo='bar'] is also a valid attribute selector.
selector : String
The CSS selector.
asDom : Boolean (optional)
false to return an array of Ext.dom.Element
Defaults to: true
An Array of elements that match the selector. If there are no matches, an empty Array is returned.
Adds one or more CSS classes to this element and removes the same class(es) from all siblings.
className : String/String[]
The CSS class to add, or an array of classes.
this
args : Object
fn : Object
scope : Object
options : Object
order : Object
Relays selected events from the specified Observable as if the events were fired by this.
object : Object
The Observable whose events this object is to relay.
events : String/Array/Object
Array of event names to relay.
Destroys this element by removing it from the cache, removing its DOM reference, and removing all of its event listeners.
Deprecated since version 5.0.0
Please use destroy instead.
Removes a before-event handler.
Same as removeListener with order set to 'after'.
eventName : String/String[]/Object
The name of the event the handler was associated with.
fn : Function/String
The handler to remove.
scope : Object (optional)
The scope originally specified for fn.
options : Object (optional)
Extra options object.
Removes all listeners for this object.
Deprecated since version 5.0.0
Please use clearListeners instead.
Removes a before-event handler.
Same as removeListener with order set to 'before'.
eventName : String/String[]/Object
The name of the event the handler was associated with.
fn : Function/String
The handler to remove.
scope : Object (optional)
The scope originally specified for fn.
options : Object (optional)
Extra options object.
Removes the given CSS class(es) from this Element.
names : String/String[]
The CSS classes to remove separated by space, or an array of classes
prefix : String (optional)
Prefix to prepend to each class to be removed.
Defaults to: ''
suffix : String (optional)
Suffix to append to each class to be removed.
Defaults to: ''
Removes the specified element(s).
el : String/HTMLElement/Ext.dom.Element/Number
The id of an element, the Element itself, the index of the element in this composite or an array of any of those.
removeDom : Boolean (optional)
true to also remove the element from the document
this
Removes an event handler.
eventName : String/String[]/Object
The type of event the handler was associated with.
fn : Function/String
The handler to remove. This must be a reference to the function passed into the addListener call.
scope : Object (optional)
The scope originally specified for the handler. It must be the same as the scope argument specified in the original call to addListener or the listener will not be removed.
options : Object (optional)
Extra options object. See addListener for details.
order : String (optional)
The order of the listener to remove.
Possible values are before, current and after.
Defaults to: 'current'
Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.
object : Ext.mixin.Observable/HTMLElement
The item to which to add a listener/listeners.
eventName : Object/String
The event name, or an object containing event name properties.
fn : Function (optional)
If the eventName parameter was an event name, this is the handler function.
scope : Object (optional)
If the eventName parameter was an event name, this is the scope in which
the handler function is executed.
Deprecated since version 2.0
All listeners are now automatically managed where necessary. Simply use removeListener.
Replaces the passed element with this element
el : String/HTMLElement/Ext.dom.Element
The element to replace. The id of the node, a DOM Node or an existing Element.
destroy : Boolean (optional)
false to prevent destruction of the replaced
element
Defaults to: true
This element
Replaces a CSS class on the element with another. If the old name does not exist, the new name will simply be added.
oldName : String
The CSS class to replace.
newName : String
The replacement CSS class.
prefix : String (optional)
Prefix to prepend to each class to be replaced.
Defaults to: ''
suffix : String (optional)
Suffix to append to each class to be replaced.
Defaults to: ''
this
Replaces the specified element with the passed element.
el : String/HTMLElement/Ext.dom.Element/Number
The id of an element, the Element itself, the index of the element in this composite to replace.
replacement : String/Ext.dom.Element
The id of an element or the Element itself.
domReplace : Boolean (optional)
true to remove and replace the element in the document too.
this
Replaces this element with the passed element
el : String/HTMLElement/Ext.dom.Element/Object
The new element (id of the node, a DOM Node or an existing Element) or a DomHelper config of an element to create
This element
This method determines the scope (the this pointer) of named listeners that have
not be given a specific scope. For example:
component.on({
click: 'onClick'
});
The default implementation of this method returns this object. Components and other observable objects that have natural hierarchies can override this method to pick the desired scope using other means.
Available since: 5.0.0
defaultScope : Object (optional)
The default scope to return if none is found.
Defaults to: this
The object on which non-scoped, named listeners should be fired.
Resumes firing of the named event(s).
After calling this method to resume events, the events will fire when requested to fire.
Note that if the suspendEvent method is called multiple times for a certain event, this converse method will have to be called the same number of times for it to resume firing.
eventName : String...
Multiple event names to resume.
Resumes firing events (see suspendEvents).
discardQueuedEvents : Boolean
Pass as true to discard any queued events.
Selects descendant elements of this element based on the passed CSS selector to enable Ext.dom.Element methods to be applied to many related elements in one statement through the returned Ext.dom.CompositeElementLite object.
selector : String/HTMLElement[]
The CSS selector or an array of elements
composite : Boolean
Return a CompositeElement as opposed to a CompositeElementLite. Defaults to false.
Selects a single descendant element of this element using a CSS selector (see query).
selector : String
The selector query
asDom : Boolean (optional)
false to return an array of Ext.dom.Element
Defaults to: true
The DOM element which matched the selector.
Sets the passed attributes as attributes of this element (a style attribute can be a string, object or function).
attributes : Object
The object with the attributes.
useSet : Boolean (optional)
false to override the default setAttribute to use expandos.
Defaults to: true
this
Sets the element's CSS bottom style.
bottom : Number/String
Number of pixels or CSS string value to set as the bottom CSS property value
this
Sets the element's box.
box : Object
The box to fill {x, y, width, height}
this
Sets the specified CSS class on this element's DOM node.
className : String/Array
The CSS class to set on this element.
Sets a single/multiple configuration options.
name : String/Object
The name of the property to set, or a set of key value pairs to set.
value : Object (optional)
The value to set for the name parameter.
this
Sets the innerHTML of this element.
html : String
The new HTML.
Deprecated since version 5.0.0
Please use setHtml instead.
Set the height of this Element.
height : Number/String
The new height.
this
Sets the element's left position directly using CSS style (instead of setX).
left : Number/String
Number of pixels or CSS string value to set as the left CSS property value
this
Sets the local x coordinate of this element using CSS style. When used on an absolute positioned element this method is symmetrical with getLocalX, but may not be symmetrical when used on a relatively positioned element.
x : Number
The x coordinate. A value of null sets the left style to 'auto'.
this
Sets the local x and y coordinates of this element using CSS style. When used on an absolute positioned element this method is symmetrical with getLocalXY, but may not be symmetrical when used on a relatively positioned element.
x : Number/Array
The x coordinate or an array containing [x, y]. A value of
null sets the left style to 'auto'
y : Number (optional)
The y coordinate, required if x is not an array. A value of
null sets the top style to 'auto'
this
Sets the local y coordinate of this element using CSS style. When used on an absolute positioned element this method is symmetrical with getLocalY, but may not be symmetrical when used on a relatively positioned element.
y : Number
The y coordinate. A value of null sets the top style to 'auto'.
this
Set the maximum height of this Element.
height : Number/String
The new maximum height.
this
Set the maximum width of this Element.
width : Number/String
The new maximum width.
this
Set the minimum height of this Element.
height : Number/String
The new minimum height.
this
Set the minimum width of this Element.
width : Number/String
The new minimum width.
this
Sets the element's CSS right style.
right : Number/String
Number of pixels or CSS string value to set as the right CSS property value
this
Set the size of this Element.
width : Number/String
The new width. This may be one of:
{width: widthValue, height: heightValue}.height : Number/String
The new height. This may be one of:
this
Wrapper for setting style properties, also takes single object parameter of multiple styles.
property : String/Object
The style property to be set, or an object of multiple styles.
value : String (optional)
The value to apply to the given property, or null if an object was passed.
this
Sets the element's top position directly using CSS style (instead of setY).
top : Number/String
Number of pixels or CSS string value to set as the top CSS property value
this
Sets the element's top and left positions directly using CSS style.
Deprecated
setTopLeft
This method has been REMOVED since 5.0.0
Use this to change the visibility mode between property-VISIBILITY, property-DISPLAY or property-OFFSETS.
mode : Object
Sets the visibility of the element based on the current visibility mode. Use setVisibilityMode to switch between the following visibility modes:
visible : Boolean
Whether the element is visible.
this
Set the width of this Element.
width : Number/String
The new width.
this
Sets this Element's page-level x coordinate
x : Number
this
Sets this Element's page-level x and y coordinates
xy : Number[]
this
Sets this Element's page-level y coordinate
y : Number
this
Show this element - Uses display mode to determine whether to use "display", "visibility", or "offsets". See setVisible.
this
Gets a range nodes.
start : Number (optional)
The index of the first node in the range
end : Number (optional)
The index of the last node in the range
An array of nodes
Get the reference to the class from which this object was instantiated. Note that unlike Ext.Base#self,
this.statics() is scope-independent and it always returns the class from which it was called, regardless of what
this points to during run-time
Ext.define('My.Cat', {
statics: {
totalCreated: 0,
speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
},
constructor: function() {
var statics = this.statics();
alert(statics.speciesName); // always equals to 'Cat' no matter what 'this' refers to
// equivalent to: My.Cat.speciesName
alert(this.self.speciesName); // dependent on 'this'
statics.totalCreated++;
},
clone: function() {
var cloned = new this.self(); // dependent on 'this'
cloned.groupName = this.statics().speciesName; // equivalent to: My.Cat.speciesName
return cloned;
}
});
Ext.define('My.SnowLeopard', {
extend: 'My.Cat',
statics: {
speciesName: 'Snow Leopard' // My.SnowLeopard.speciesName = 'Snow Leopard'
},
constructor: function() {
this.callParent();
}
});
var cat = new My.Cat(); // alerts 'Cat', then alerts 'Cat'
var snowLeopard = new My.SnowLeopard(); // alerts 'Cat', then alerts 'Snow Leopard'
var clone = snowLeopard.clone();
alert(Ext.getClassName(clone)); // alerts 'My.SnowLeopard'
alert(clone.groupName); // alerts 'Cat'
alert(My.Cat.totalCreated); // alerts 3
Suspends firing of the named event(s).
After calling this method to suspend events, the events will no longer fire when requested to fire.
Note that if this is called multiple times for a certain event, the converse method resumeEvent will have to be called the same number of times for it to resume firing.
eventName : String...
Multiple event names to suspend.
Suspends the firing of all events. (see resumeEvents)
queueSuspended : Boolean
true to queue up suspended events to be fired
after the resumeEvents call instead of discarding all suspended events.
firstClass : String
secondClass : String
flag : Boolean
prefix : String
Toggles the element's visibility, depending on visibility mode.
this
Toggles the specified CSS class on this element (removes it if it already exists, otherwise adds it).
className : String
The CSS class to toggle.
this
Translates the passed page coordinates into left/top css values for the element
x : Number/Array
The page x or an array containing [x, y]
y : Number (optional)
The page y, required if x is not an array
An object with left and top properties. e.g. {left: (value), top: (value)}
Translates the passed page coordinates into x and y css values for the element
x : Number/Array
The page x or an array containing [x, y]
y : Number (optional)
The page y, required if x is not an array
An object with x and y properties. e.g. {x: (value), y: (value)}
Alias for removeListener. Removes an event handler.
eventName : String/String[]/Object
The type of event the handler was associated with.
fn : Function/String
The handler to remove. This must be a reference to the function passed into the addListener call.
scope : Object (optional)
The scope originally specified for the handler. It must be the same as the scope argument specified in the original call to addListener or the listener will not be removed.
options : Object (optional)
Extra options object. See addListener for details.
order : String (optional)
The order of the listener to remove.
Possible values are before, current and after.
Defaults to: 'current'
Alias for removeAfterListener. Removes a before-event handler.
Same as removeListener with order set to 'after'.
eventName : String/String[]/Object
The name of the event the handler was associated with.
fn : Function/String
The handler to remove.
scope : Object (optional)
The scope originally specified for fn.
options : Object (optional)
Extra options object.
Alias for removeBeforeListener. Removes a before-event handler.
Same as removeListener with order set to 'before'.
eventName : String/String[]/Object
The name of the event the handler was associated with.
fn : Function/String
The handler to remove.
scope : Object (optional)
The scope originally specified for fn.
options : Object (optional)
Extra options object.
Destroys a given set of linked objects. This is only needed if
the linked object is being destroyed before this instance.
names : String[]
The names of the linked objects to destroy.
this
. Walks up the dom looking for a parent node that matches the passed simple selector (e.g. 'div.some-class' or 'span:first-child'). This is a shortcut for findParentNode() that always returns an Ext.dom.Element.
selector : String
The simple selector to test. See Ext.dom.Query for information about simple selectors.
limit : Number/String/HTMLElement/Ext.dom.Element (optional)
The max depth to search as a number or an element which causes the upward traversal to stop and is not considered for inclusion as the result. (defaults to 50 || document.documentElement)
returnDom : Boolean (optional)
True to return the DOM node instead of Ext.dom.Element
Defaults to: false
The matching DOM node (or null if no match was found)
Sets the innerHTML of this element.
html : String
The new HTML.
Deprecated since version 5.0.0
Please use setHtml instead.
Creates and wraps this element with another element
config : Object (optional)
DomHelper element config object for the wrapper element or null for an empty div
returnDom : Boolean (optional)
True to return the raw DOM element instead of Ext.dom.Element
Defaults to: false
selector : String (optional)
A CSS selector to select a descendant node within the created element to use as the wrapping element.
The newly created wrapper element
Adds new config properties to this class. This is called for classes when they are declared, then for any mixins that class may define and finally for any overrides defined that target the class.
config : Object
mixinClass : Class (optional)
The mixin class if the configs are from a mixin.
Add methods / properties to the prototype of this class.
Ext.define('My.awesome.Cat', {
constructor: function() {
...
}
});
My.awesome.Cat.addMembers({
meow: function() {
alert('Meowww...');
}
});
var kitty = new My.awesome.Cat();
kitty.meow();
members : Object
The members to add to this class.
isStatic : Boolean (optional)
Pass true if the members are static.
Defaults to: false
privacy : Boolean (optional)
Pass true if the members are private. This
only has meaning in debug mode and only for methods.
Defaults to: false
Add / override static properties of this class.
Ext.define('My.cool.Class', {
...
});
My.cool.Class.addStatics({
someProperty: 'someValue', // My.cool.Class.someProperty = 'someValue'
method1: function() { ... }, // My.cool.Class.method1 = function() { ... };
method2: function() { ... } // My.cool.Class.method2 = function() { ... };
});
members : Object
this
Test if size has a unit, otherwise appends the passed unit string, or the default for this Element.
size : Object
The size to set.
units : String
The units to append to a numeric size value.
Borrow another class' members to the prototype of this class.
Ext.define('Bank', {
money: '$$$',
printMoney: function() {
alert('$$$$$$$');
}
});
Ext.define('Thief', {
...
});
Thief.borrow(Bank, ['money', 'printMoney']);
var steve = new Thief();
alert(steve.money); // alerts '$$$'
steve.printMoney(); // alerts '$$$$$$$'
fromClass : Ext.Base
The class to borrow members from
members : Array/String
The names of the members to borrow
this
Create a new instance of this Class.
Ext.define('My.cool.Class', {
...
});
My.cool.Class.create({
someConfig: true
});
All parameters are passed to the constructor of the class.
the created instance.
Create aliases for existing prototype methods. Example:
Ext.define('My.cool.Class', {
method1: function() { ... },
method2: function() { ... }
});
var test = new My.cool.Class();
My.cool.Class.createAlias({
method3: 'method1',
method4: 'method2'
});
test.method3(); // test.method1()
My.cool.Class.createAlias('method5', 'method3');
test.method5(); // test.method3() -> test.method1()
alias : String/Object
The new method name, or an object to set multiple aliases. See flexSetter
origin : String/Object
The original method name
Gets the globally shared flyweight Element, with the passed node as the active element. Do not store a reference to this element - the dom node can be overwritten by other code. Ext#fly is alias for Ext.dom.Element#fly.
Use this to make one-time references to DOM elements which are not going to be accessed again either by application code, or by Ext's classes. If accessing an element which will be processed regularly, then Ext.get will be more appropriate to take advantage of the caching provided by the Ext.dom.Element class.
If this method is called with and id or element that has already been cached by a previous call to Ext.get() it will return the cached Element instead of the flyweight instance.
dom : String/HTMLElement
The DOM node or id.
named : Object
The shared Element object (or null if no matching
element was found).
Returns the top Element that is located at the passed coordinates
x : Number
The x coordinate
y : Number
The y coordinate
The found Element
Retrieves Ext.dom.Element objects. Ext#get is alias for Ext.dom.Element#get.
This method does not retrieve Ext.Components. This method retrieves Ext.dom.Element objects which encapsulate DOM elements. To retrieve a Component by its ID, use Ext.ComponentManager#get.
When passing an id, it should not include the # character that is used for a css selector.
// For an element with id 'foo'
Ext.get('foo'); // Correct
Ext.get('#foo'); // Incorrect
Uses simple caching to consistently return the same object. Automatically fixes if an object was recreated with the same id via AJAX or DOM.
element : String/HTMLElement/Ext.dom.Element
The id of the node, a DOM Node or an existing Element.
The Element object (or null if no matching element was found).
Returns the active element in the DOM. If the browser supports activeElement on the document, this is returned. If not, the focus is tracked and the active element is maintained internally.
The active (focused) element in the document.
Returns the Ext.Configurator for this class.
Get the current class' name in string format.
Ext.define('My.cool.Class', {
constructor: function() {
alert(this.self.getName()); // alerts 'My.cool.Class'
}
});
My.cool.Class.getName(); // 'My.cool.Class'
className
Retrieves the current orientation of the window. This is calculated by determining if the height is greater than the width.
Orientation of window: 'portrait' or 'landscape'
Retrieves the viewport height of the window.
viewportHeight
Retrieves the viewport size of the window.
object containing width and height properties
Used internally by the mixins pre-processor
name : Object
mixinClass : Object
Normalizes CSS property keys from dash delimited to camel case JavaScript Syntax. For example:
prop : String
The property to normalize
The normalized string
Override members of this class. Overridden methods can be invoked via callParent.
Ext.define('My.Cat', {
constructor: function() {
alert("I'm a cat!");
}
});
My.Cat.override({
constructor: function() {
alert("I'm going to be a cat!");
this.callParent(arguments);
alert("Meeeeoooowwww");
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
Direct use of this method should be rare. Use Ext.define instead:
Ext.define('My.CatOverride', {
override: 'My.Cat',
constructor: function() {
alert("I'm going to be a cat!");
this.callParent(arguments);
alert("Meeeeoooowwww");
}
});
The above accomplishes the same result but can be managed by the Ext.Loader which can properly order the override and its target class and the build process can determine whether the override is needed based on the required state of the target class (My.Cat).
members : Object
The properties to add to this class. This should be specified as an object literal containing one or more properties.
this class
Parses a number or string representing margin sizes into an object. Supports CSS-style margin declarations (e.g. 10, "10", "10 10", "10 10 10" and "10 10 10 10" are all valid options and would return the same result)
box : Number/String
The encoded margins
An object with margin sizes for top, right, bottom and left containing the unit
Converts a CSS string into an object with a property for each style.
The sample code below would return an object with 2 properties, one for background-color and one for color.
var css = 'background-color: red; color: blue;';
console.log(Ext.dom.Element.parseStyles(css));
styles : String
A CSS string
styles
Selects child nodes of a given root based on the passed CSS selector. For details on selectors see method-query.
selector : String
The CSS selector.
asDom : Boolean (optional)
false to return an array of Ext.dom.Element
Defaults to: true
root : HTMLElement/String (optional)
The root element of the query or id of the root
An Array of elements that match the selector. If there are no matches, an empty Array is returned.
Selects elements based on the passed CSS selector to enable Ext.dom.Element methods to be applied to many related elements in one statement through the returned Ext.dom.CompositeElementLite object.
selector : String/HTMLElement[]
The CSS selector or an array of elements
composite : Boolean (optional)
Return a CompositeElement as opposed to a CompositeElementLite. Defaults to false.
Defaults to: false
root : HTMLElement/String (optional)
The root element of the query or id of the root
Serializes a DOM form into a url encoded string
form : Object
The form
The url encoded form
Parses a number or string representing margin sizes into an object. Supports CSS-style margin declarations (e.g. 10, "10", "10 10", "10 10 10" and "10 10 10 10" are all valid options and would return the same result)
box : Number/String/Object
The encoded margins, or an object with top, right,
units : String
The type of units to add
An string with unitized (px if units is not specified) metrics for top, right, bottom and left
Fires when there is a double tap.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when you touch and hold still for more than 1 second.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever this Element actually becomes visible (painted) on the screen. This is useful when you need to perform 'read' operations on the DOM element, i.e: calculating natural sizes and positioning.
Note: This event is not available to be used with event delegation. Instead painted only fires if you explicitly
add at least one listener to it, for performance reasons.
this : Ext.dom.Element
The component instance.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires continuously when there is pinching (the touch must move for this to be fired).
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when a pinch has ended.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fired once when a pinch has started.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Important note: For the best performance on mobile devices, use this only when you absolutely need to monitor a Element's size.
Note: This event is not available to be used with event delegation. Instead resize only fires if you explicitly
add at least one listener to it, for performance reasons.
this : Ext.dom.Element
The component instance.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires continuously when there is rotation (the touch must move for this to be fired).
When listening to this, ensure you know about the Ext.event.Event#angle and Ext.event.Event#rotation
properties in the event object.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when a rotation event has ended.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fired once when a rotation has started.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when there is a single tap.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when there is a swipe
When listening to this, ensure you know about the Ext.event.Event#direction property in the event object.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when you touch and hold still for more than 1 second.
event : Ext.event.Event
The Ext.event.Event event encapsulating the DOM event.
node : HTMLElement
The target of the event.
options : Object
The options object passed to Ext.mixin.Observable.addListener.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
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