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 ComponentLayout handles docking for Panels. It takes care of panels that are part of a ContainerLayout that sets this Panel's size and Panels that are part of an AutoContainerLayout in which this panel get his height based of the CSS or its content.
An object that contains as keys the names of the properties that can be animated by child items as a consequence of a layout. This config is used internally by the Ext.layout.container.Accordion layout to cause the child panels to animate to their proper size and position after a collapse/expand event.
Available since: 4.1.0
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:
true
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
This object is indexed by a component's baseCls to yield another object which
is then indexed by the component's ui to produce an array of CSS class names.
This array is indexed in the same manner as the noBorderClassTable and indicates
the a particular edge of a docked item or the body element is actually "collapsed"
with the component's outer border.
Defaults to:
{}
Setting this property to false will prevent nulling object references
on a Class instance after destruction. Setting this to "async" will delay
the clearing for approx 50ms.
Defaults to:
true
Available since: 6.2.0
Setting this property to true will result in setting the object's
prototype to null after the destruction sequence is fully completed.
After that, most attempts at calling methods on the object instance
will result in "method not defined" exception. This can be very helpful
with tracking down otherwise hard to find bugs like runaway Ajax requests,
timed functions not cleared on destruction, etc.
Note that this option can only work in browsers that support Object.setPrototypeOf
method, and is only available in debugging mode.
Defaults to:
false
Available since: 6.2.0
This property is set to true after the destroy method is called.
Defaults to:
false
Used only during a layout run, this value indicates that a layout has finished its calculations. This flag is set to true prior to the call to calculate and should be set to false if this layout has more work to do.
If this property is specified by the target class of this mixin its properties are
used to configure the created Ext.Factory.
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
true in this class to identify an object as an instantiated Layout, or subclass thereof.
Defaults to:
true
true if this layout may need to incorporate the dimensions of individual child
items into its layout calculations. Layouts that handle the size of their children
as a group (autocontainer, form) can set this to false for an additional performance
optimization. When false the layout system will not recurse into the child
items if Ext.layout.container.Container#activeItemCount is 0, which will be the case if all child items
use "liquid" CSS layout, e.g. form fields. (See Ext.Component#liquidLayout)
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
true if this layout may set the size of its child items. Layouts that do not
set the size of their child items (autocontainer, form) can set this to false
for an additional performance optimization. When true the layout system will
not create a context item for children that use liquid layout, because there is
no need for a context item if item size is neither read nor set by the owning layout.
Defaults to:
true
This method applies a versioned, deprecation declaration to this class. This
is typically called by the deprecated config.
deprecations : Object
Called by an owning Panel after the Panel finishes its collapse process.
owner : Object
animated : Object
Called by an owning Panel after the Panel finishes its expand process.
owner : Object
animated : Object
Removes layout's itemCls and owning Container's itemCls. Clears the managed dimensions flags
item : Object
Called before any calculation cycles to prepare for layout.
This is a write phase and DOM reads should be strictly avoided when overridding this method.
ownerContext : Ext.layout.ContextItem
The context item for the layout's owner component.
Called before any calculation cycles to reset DOM values and prepare for calculation.
This is a write phase and DOM reads should be strictly avoided when overridding this method.
ownerContext : Ext.layout.ContextItem
The context item for the layout's owner component.
Called to perform the calculations for this layout. This method will be called at
least once and may be called repeatedly if the done property is cleared
before return to indicate that this layout is not yet done. The done property
is always set to true before entering this method.
This is a read phase and DOM writes should be strictly avoided in derived classes. Instead, DOM writes need to be written to Ext.layout.ContextItem objects to be flushed at the next opportunity.
ownerContext : Ext.layout.ContextItem
The context item for the layout's owner component.
Call the original method that was previously overridden with Ext.Base#override
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.callOverridden();
alert("Meeeeoooowwww");
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
args : Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callOverridden(arguments)
Returns the result of calling the overridden method
Deprecated since version 4.1.0
Use method-callParent instead.
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 and private methods.
Ext.define('My.Derived2', {
extend: 'My.Base',
// privates: {
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',
// privates: {
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 method-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 method-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
This method (if implemented) is called at the end of the cycle in which this layout
completes (by not setting done to false in calculate). It is
possible for the layout to complete and yet become invalid before the end of the cycle,
in which case, this method will not be called. It is also possible for this method to
be called and then later the layout becomes invalidated. This will result in
calculate being called again, followed by another call to this method.
This is a read phase and DOM writes should be strictly avoided in derived classes. Instead, DOM writes need to be written to Ext.layout.ContextItem objects to be flushed at the next opportunity.
This method need not be implemented by derived classes and, in fact, should only be implemented when needed.
ownerContext : Ext.layout.ContextItem
The context item for the layout's owner component.
We are overriding the Ext.layout.Layout configureItem method to also add a class that indicates the position of the docked item. We use the itemCls (x-docked) as a prefix. An example of a class added to a dock: right item is x-docked-right
item : Ext.Component
The item we are configuring
pos : Object
Creates an axis object given the particulars. The process starts by placing the dockedItems in an idealized box where this method is called once for each side. The ideal box is defined by the CSS3 border and padding values (which account for the influence of border-radius). The origin (the (0,0) point) of the ideal box is the top-left edge of the border or the border-box. Normal dockedItems are placed inside this box at an offset to clear the border and padding and sit properly in the panel next to the body.
The origin has to be started differently if the axis is in shrinkWrap mode. When shrink-wrapping an axis, the axis starts at the edge of the body and expands outwards as items are docked. This means the ideal (0,0) for shrinkWrap is on the top-left corner of the body.
The following diagram illustrates this using the vertical axis.
+---------------------------+ 10px (border)
| |
| xxxxxxxxxxxxxxxxxxxxxxx | 5px (padding) shrinkWrap other
| +=====================+ | -50 15
| | Header | | 30px
| | | |
| +=====================+ |
| +---------------------+ | -20 45
| | tbar | | 20 px
| +---------------------+ |
| +---------------------+ | 0 65
| | Body | | 100px
| | | |
| | | |
| +---------------------+ |
| +---------------------+ | 100 165
| | bbar | | 15px
| +---------------------+ |
| xxxxxxxxxxxxxxxxxxxxxxx | 5px
| |
+---------------------------+ 10px
These are sufficient to determine sizes of things, but to finalize this process and assign proper positions, the tentative coordinates have to be adjusted by an amount appropriate for the item. Because dockedItems are position:absolute, they sit inside the border and so must be adjusted for padding. The body is different because it is position:relative and so it naturally sits inside the padding and the padding must not be included in its position.
Headers and footers that use ignoreParentFrame interact with this process by
moving themselves outside the border and padding. So in the above diagram, the
Header would move up by 15px and everything else would move up by 10px. When
shrinkWrap is taking place, the 10px of border on the top is removed from the
height as well.
The bbar behaves slightly different when it is ignoreParentFrame. In shrinkWrap
mode, it alone would move down by the padding and the bottom border would not be
included in the height. Otherwise, the bbar would be moved down 15px (since the
edge is fixed) and the next dockedItem would be placed at, or the body would be
stretched down to, 5px (padding) pixels above the bbar.
ownerContext : Object
contentSize : Object
sizeModel : Object
axisProps : Object
collapsedAxis : Object
Destroys this layout. This method removes a targetCls from the target
element and calls onDestroy.
A derived class can override either this method or onDestroy but in all
cases must call the base class versions of these methods to allow the base class to
perform its cleanup.
This method (or onDestroy) are overridden by subclasses most often to purge
event handlers or remove unmanged DOM nodes.
Docks a child item on the specified axis. This boils down to determining if the item is docked at the "beginning" of the axis ("left" if horizontal, "top" if vertical), the "end" of the axis ("right" if horizontal, "bottom" if vertical) or stretches along the axis ("top" or "bottom" if horizontal, "left" or "right" if vertical). It also has to differentiate between fixed and shrinkWrap sized dimensions.
ownerContext : Object
axis : Object
backward : Object
forward : Object
Docks an item on a fixed-size axis at the "beginning". The "beginning" of the horizontal axis is "left" and the vertical is "top". For a fixed-size axis, the size works from the outer element (the panel) towards the body.
ownerContext : Object
itemContext : Object
item : Object
axis : Object
Docks an item on a fixed-size axis at the "end". The "end" of the horizontal axis is "right" and the vertical is "bottom".
ownerContext : Object
itemContext : Object
item : Object
axis : Object
Docks an item on a shrinkWrap axis at the "beginning". The "beginning" of the horizontal axis is "left" and the vertical is "top". For a shrinkWrap axis, the size works from the body outward to the outermost element (the panel).
During the docking process, coordinates are allowed to be negative. We start with the body at (0,0) so items docked "top" or "left" will simply be assigned negative x/y. In the finishPositions method these are corrected and framing is added. This way the correction is applied as a simple translation of delta x/y on all coordinates to bring the origin back to (0,0).
ownerContext : Object
itemContext : Object
item : Object
axis : Object
Docks an item on a shrinkWrap axis at the "end". The "end" of the horizontal axis is "right" and the vertical is "bottom".
ownerContext : Object
itemContext : Object
item : Object
axis : Object
Docks an item that might stretch across an axis. This is done for dock "top" and "bottom" items on the horizontal axis and dock "left" and "right" on the vertical.
ownerContext : Object
itemContext : Object
item : Object
axis : Object
This method (if implemented) is called after all layouts have completed. In most ways this is similar to completeLayout. This call can cause this (or any layout) to be become invalid (see Ext.layout.Context#invalidate), but this is best avoided. This method is intended to be where final reads are made and so it is best to avoid invalidating layouts at this point whenever possible. Even so, this method can be used to perform final checks that may require all other layouts to be complete and then invalidate some results.
This is a read phase and DOM writes should be strictly avoided in derived classes. Instead, DOM writes need to be written to Ext.layout.ContextItem objects to be flushed at the next opportunity.
This method need not be implemented by derived classes and, in fact, should only be implemented when needed.
ownerContext : Ext.layout.ContextItem
The context item for the layout's owner component.
Finishes the calculation of an axis by determining its size. In non-shrink-wrap cases, this is also where we set the body size.
ownerContext : Object
axis : Object
Finishes processing of each axis by applying the min/max size constraints.
ownerContext : Object
horz : Object
vert : Object
Finishes the calculation by setting positions on the body and all of the items.
ownerContext : Object
horz : Object
vert : Object
This method is called after all layouts are complete and their calculations flushed
to the DOM. No further layouts will be run and this method is only called once per
layout run. The base component layout caches lastComponentSize.
This is a write phase and DOM reads should be avoided if possible when overridding this method.
This method need not be implemented by derived classes and, in fact, should only be implemented when needed.
ownerContext : Ext.layout.ContextItem
The context item for the layout's owner component.
Returns the array of class names to add to a docked item or body element when for the edges that should collapse with the outer component border. Basically, the panel's outer border must look visually like a contiguous border but may need to be realized by using the border of docked items and/or the body. This class name allows the border color and width to be controlled accordingly and distinctly from the border of the docked item or body element when it is not having its border collapsed.
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.
Get's the css class name for a given dock position.
dock : String
top, right, bottom, or left
Retrieve an ordered and/or filtered array of all docked Components.
order : String (optional)
The desired ordering of the items ('render' or 'visual').
Defaults to: 'render'
beforeBody : Boolean (optional)
An optional flag to limit the set of items to only those before the body (true) or after the body (false). All components are returned by default.
An array of components.
Returns the initial configuration passed to the constructor when instantiating this class.
Given this example Ext.button.Button definition and instance:
Ext.define('MyApp.view.Button', {
extend: 'Ext.button.Button',
xtype: 'mybutton',
scale: 'large',
enableToggle: true
});
var btn = Ext.create({
xtype: 'mybutton',
renderTo: Ext.getBody(),
text: 'Test Button'
});
Calling btn.getInitialConfig() would return an object including the config
options passed to the create method:
xtype: 'mybutton',
renderTo: // The document body itself
text: 'Test Button'
Calling btn.getInitialConfig('text')returns 'Test Button'.
name : String (optional)
Name of the config option to return.
The full config object or a single config value
when name parameter specified.
For a given item, returns the element that participates in the childNodes array of the layout's target element. This is usually the component's "el", but can also be a wrapper
item : Ext.Component
Returns an object describing how this layout manages the size of the given component. This method must be implemented by any layout that manages components.
item : Ext.Component
An object describing the sizing done by the layout for this item.
Returns an array containing all the visible docked items inside this layout's owner Panel
An array containing all the visible docked items of the Panel
Returns the element into which rendering must take place. Defaults to the owner Component's encapsulating element.
May be overridden in Component layout managers which implement an inner element.
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
The default weighting of docked items produces this arrangement:
+--------------------------------------------+
| Top 1 |
+--------------------------------------------+
| Top 2 |
+-----+-----+--------------------+-----+-----+
| | | | | |
| | | | | |
| | | | R | R |
| L | L | | I | I |
| E | E | | G | G |
| F | F | | H | H |
| T | T | | T | T |
| | | | | |
| 2 | 1 | | 1 | 2 |
| | | | | |
| | | | | |
+-----+-----+--------------------+-----+-----+
| Bottom 1 |
+--------------------------------------------+
| Bottom 2 |
+--------------------------------------------+
So when we are shrinkWrapDock on the horizontal, the stretch size for top/bottom docked items is the final axis size. For the vertical axis, however, the stretch
ownerContext : Object
horz : Object
vert : Object
Validates item is in the proper place in the dom.
item : Object
target : Object
position : Object
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.
Moves Component to the provided target instead.
item : Object
target : Object
position : Object
This method (if implemented) is called after all layouts are finished, and all have
a lastComponentSize cached. No further layouts will be run and this method is only
called once per layout run. It is the bookend to beginLayout.
This is a write phase and DOM reads should be avoided if possible when overridding this method. This is the catch-all tail method to a layout and so the rules are more relaxed. Even so, for performance reasons, it is best to avoid reading the DOM. If a read is necessary, consider implementing a finalizeLayout method to do the required reads.
This method need not be implemented by derived classes and, in fact, should only be implemented when needed.
ownerContext : Ext.layout.ContextItem
The context item for the layout's owner component.
This method is called when a child item changes in some way. By default this calls Ext.Component#updateLayout on this layout's owner.
child : Ext.Component
The child item that has changed.
True if this layout has handled the content change.
Renders the given Component into the target Element.
item : Ext.Component
The Component to render
target : Ext.dom.Element
The target Element
position : Number
The position within the target to render the item to
Render the top and left docked items before any existing DOM nodes in our render target and then render the right and bottom docked items after. This is important, for such things as tab stops and ARIA readers, that the DOM nodes are in a meaningful order.
Our collection of docked items will already be ordered via Panel.getDockedItems().
items : Object
target : Object
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
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
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 : Ext.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
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
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
Used internally by the mixins pre-processor
name : Object
mixinClass : Object
Override members of this class. Overridden methods can be invoked via Ext.Base#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
Ext JS | Terms of Use