Docs Help

Terms, Icons, and Labels

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.

Access Levels

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.

Member Types

Member Syntax

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).

lookupComponent ( item ) : Ext.Component
protected

Called when a raw config object is added to this container either during initialization of the items config, or when new items are added), or {@link #insert inserted.

This method converts the passed object into an instanced child component.

This may be overridden in subclasses when special processing needs to be applied to child creation.

Parameters

item :  Object

The config object being added.

Returns
Ext.Component

The component to be added.

Let's look at each part of the member row:

Member Flags

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.

Class Icons

- 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

Member Icons

- 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

Class Member Quick-Nav Menu

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.

Getter and Setter Methods

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.

History Bar

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.

Search and Filters

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.

API Doc Class Metadata

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:

Expanding and Collapsing Examples and Class Members

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.

Desktop -vs- Mobile View

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:

Viewing the Class Source

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.

Ext JS 6.2.1 - Modern Toolkit


top

Hierarchy

Summary

A template class that supports advanced functionality like:

  • Auto-filling arrays using templates and sub-templates
  • Conditional processing with basic comparison operators
  • Basic math function support
  • Execute arbitrary inline code with special built-in template variables
  • Custom member functions
  • Many special tags and built-in operators that aren't defined as part of the API, but are supported in the templates that can be created

XTemplate provides the templating mechanism built into Ext.view.View.

The Ext.Template describes the acceptable parameters to pass to the constructor. The following examples demonstrate all of the supported features.

Sample Data

This is the data object used for reference in each code example:

var data = {
    name: 'Don Griffin',
    title: 'Senior Technomage',
    company: 'Sencha Inc.',
    drinks: ['Coffee', 'Water', 'More Coffee'],
    kids: [
        { name: 'Aubrey',  age: 17 },
        { name: 'Joshua',  age: 13 },
        { name: 'Cale',    age: 10 },
        { name: 'Nikol',   age: 5 },
        { name: 'Solomon', age: 0 }
    ]
};

Auto filling of arrays

The tpl tag and the for operator are used to process the provided data object:

  • If the value specified in for is an array, it will auto-fill, repeating the template block inside the tpl tag for each item in the array.
  • If for="." is specified, the data object provided is examined.
  • If between="..." is specified, the provided value will be inserted between the items. This is also supported in the "foreach" looping template.
  • While processing an array, the special variable {#} will provide the current array index + 1 (starts at 1, not 0).

Examples:

<tpl for=".">...</tpl>       // loop through array at root node
<tpl for="foo">...</tpl>     // loop through array at foo node
<tpl for="foo.bar">...</tpl> // loop through array at foo.bar node
<tpl for="." between=",">...</tpl> // loop through array at root node and insert ',' between each item

Using the sample data above:

var tpl = new Ext.XTemplate(
    '<p>Kids: ',
    '<tpl for=".">',       // process the data.kids node
        '<p>{#}. {name}</p>',  // use current array index to autonumber
    '</tpl></p>'
);
tpl.overwrite(panel.body, data.kids); // pass the kids property of the data object

An example illustrating how the for property can be leveraged to access specified members of the provided data object to populate the template:

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Title: {title}</p>',
    '<p>Company: {company}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',     // interrogate the kids property within the data
        '<p>{name}</p>',
    '</tpl></p>'
);
tpl.overwrite(panel.body, data);  // pass the root node of the data object

Flat arrays that contain values (and not objects) can be auto-rendered using the special {.} variable inside a loop. This variable will represent the value of the array at the current index:

var tpl = new Ext.XTemplate(
    '<p>{name}\'s favorite beverages:</p>',
    '<tpl for="drinks">',
        '<div> - {.}</div>',
    '</tpl>'
);
tpl.overwrite(panel.body, data);

When processing a sub-template, for example while looping through a child array, you can access the parent object's members via the parent object:

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '<tpl if="age &gt; 1">',
            '<p>{name}</p>',
            '<p>Dad: {parent.name}</p>',
        '</tpl>',
    '</tpl></p>'
);
tpl.overwrite(panel.body, data);

The foreach operator is used to loop over an object's properties. The following example demonstrates looping over the main data object's properties:

var tpl = new Ext.XTemplate(
    '<dl>',
        '<tpl foreach=".">',
            '<dt>{$}</dt>', // the special **`{$}`** variable contains the property name
            '<dd>{.}</dd>', // within the loop, the **`{.}`** variable is set to the property value
        '</tpl>',
    '</dl>'
);
tpl.overwrite(panel.body, data);

Conditional processing with basic comparison operators

The tpl tag and the if operator are used to provide conditional checks for deciding whether or not to render specific parts of the template.

Using the sample data above:

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '<tpl if="age &gt; 1">',
            '<p>{name}</p>',
        '</tpl>',
    '</tpl></p>'
);
tpl.overwrite(panel.body, data);

More advanced conditionals are also supported:

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '<p>{name} is a ',
        '<tpl if="age &gt;= 13">',
            '<p>teenager</p>',
        '<tpl elseif="age &gt;= 2">',
            '<p>kid</p>',
        '<tpl else>',
            '<p>baby</p>',
        '</tpl>',
    '</tpl></p>'
);

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '<p>{name} is a ',
        '<tpl switch="name">',
            '<tpl case="Aubrey" case="Nikol">',
                '<p>girl</p>',
            '<tpl default>',
                '<p>boy</p>',
        '</tpl>',
    '</tpl></p>'
);

A break is implied between each case and default, however, multiple cases can be listed in a single <tpl> tag.

Using double quotes

Examples:

var tpl = new Ext.XTemplate(
    "<tpl if='age &gt; 1 && age &lt; 10'>Child</tpl>",
    "<tpl if='age &gt;= 10 && age &lt; 18'>Teenager</tpl>",
    "<tpl if='this.isGirl(name)'>...</tpl>",
    '<tpl if="id == \'download\'">...</tpl>',
    "<tpl if='needsIcon'><img src='{icon}' class='{iconCls}'/></tpl>",
    "<tpl if='name == \"Don\"'>Hello</tpl>"
);

Basic math support

The following basic math operators may be applied directly on numeric data values:

+ - * /

For example:

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '<tpl if="age &gt; 1">',  // <-- Note that the > is encoded
            '<p>{#}: {name}</p>',  // <-- Auto-number each item
            '<p>In 5 Years: {age+5}</p>',  // <-- Basic math
            '<p>Dad: {parent.name}</p>',
        '</tpl>',
    '</tpl></p>'
);
tpl.overwrite(panel.body, data);

Execute arbitrary inline code with special built-in template variables

Anything between {[ ... ]} is considered code to be executed in the scope of the template. The expression is evaluated and the result is included in the generated result. There are some special variables available in that code:

  • out: The output array into which the template is being appended (using push to later join).
  • values: The values in the current scope. If you are using scope changing sub-templates, you can change what values is.
  • parent: The scope (values) of the ancestor template.
  • xindex: If you are in a "for" or "foreach" looping template, the index of the loop you are in (1-based).
  • xcount: If you are in a "for" looping template, the total length of the array you are looping.
  • xkey: If you are in a "foreach" looping template, the key of the current property being examined.

This example demonstrates basic row striping using an inline code block and the xindex variable:

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Company: {[values.company.toUpperCase() + ", " + values.title]}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '<div class="{[xindex % 2 === 0 ? "even" : "odd"]}">',
        '{name}',
        '</div>',
    '</tpl></p>'
 );

Any code contained in "verbatim" blocks (using "{% ... %}") will be inserted directly in the generated code for the template. These blocks are not included in the output. This can be used for simple things like break/continue in a loop, or control structures or method calls (when they don't produce output). The this references the template instance.

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Company: {[values.company.toUpperCase() + ", " + values.title]}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '{% if (xindex % 2 === 0) continue; %}',
        '{name}',
        '{% if (xindex > 100) break; %}',
        '</div>',
    '</tpl></p>'
 );

Template member functions

One or more member functions can be specified in a configuration object passed into the XTemplate constructor for more complex processing:

var tpl = new Ext.XTemplate(
    '<p>Name: {name}</p>',
    '<p>Kids: ',
    '<tpl for="kids">',
        '<tpl if="this.isGirl(name)">',
            '<p>Girl: {name} - {age}</p>',
        '<tpl else>',
            '<p>Boy: {name} - {age}</p>',
        '</tpl>',
        '<tpl if="this.isBaby(age)">',
            '<p>{name} is a baby!</p>',
        '</tpl>',
    '</tpl></p>',
    {
        // XTemplate configuration:
        disableFormats: true,
        // member functions:
        isGirl: function(name){
           return name == 'Aubrey' || name == 'Nikol';
        },
        isBaby: function(age){
           return age < 1;
        }
    }
);
tpl.overwrite(panel.body, data);
No members found using the current filters

configs

Optional Configs

definitions : String / Array

Optional. A statement, or array of statements which set up vars which may then be accessed within the scope of the generated function.

var data = {
    name: 'Don Griffin',
    isWizard: true,
    title: 'Senior Technomage',
    company: 'Sencha Inc.'
};

var tpl = new Ext.XTemplate('{[values.isWizard ? wizard : notSoWizard]}' +
    ' {name}', {
    definitions: 'var wizard = "Wizard", notSoWizard = "Townsperson";'
});

console.log(tpl.apply(data));
// LOGS: Wizard Don Griffin

disableFormats : Boolean

True to disable format functions in the template. If the template doesn't contain format functions, setting disableFormats to true will reduce apply time. Defaults to false.

Defaults to:

false

strict : Boolean

Expressions in templates that traverse "dot paths" and fail (due to null at some stage) have always been expanded as empty strings. This is convenient in most cases but doing so can also mask errors in the template. Setting this to true changes this default so that any expression errors will be thrown as exceptions.

Defaults to:

false

properties

Instance Properties

$className
private pri

Defaults to:

'Ext.Base'

$configPrefixed : Boolean
private pri

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

$configStrict : Boolean
private pri

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

clearPropertiesOnDestroy : Boolean / "async"
protected pro

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

clearPrototypeOnDestroy : Boolean
private pri

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

destroyed : Boolean
protected pro

This property is set to true after the destroy method is called.

Defaults to:

false

emptyObj
private pri

Defaults to:

{}

fn : Function
readonly ro private pri

The function that applies this template. This is created on first use of the template (calls to apply or applyOut).

Defaults to:

null

isConfiguring : Boolean
readonly ro protected pro

This property is set to true during the call to initConfig.

Defaults to:

false

Available since: 5.0.0

isFirstInstance : Boolean
readonly ro protected pro

This property is set to true if this instance is the first of its class.

Defaults to:

false

Available since: 5.0.0

isInstance : Boolean
readonly ro protected pro

This value is true and is used to identify plain objects from instances of a defined class.

Defaults to:

true

isTemplate : Boolean

true in this class to identify an object as an instantiated Template, or subclass thereof.

Defaults to:

true

re : RegExp
private pri

Regular expression used to extract tokens.

Finds the following expressions within a format string

                {AND?}
                /   \
              /       \
            /           \
          /               \
       OR                  AND?
      /  \                 / \
     /    \               /   \
    /      \             /     \

(\d+) ([a-z][\w-]*) / \ index name / \ / \ / \ \:([a-z.]) (?:((.?)?))? formatFn args

Numeric index or (name followed by optional formatting function and args)

Defaults to:

/\{(?:(?:(\d+)|([a-z_][\w\-]*))(?::([a-z_\.]+)(?:\(([^\)]*?)?\))?)?)\}/gi

self : Ext.Class
protected pro

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

Static Properties

$onExtended
static sta private pri

Defaults to:

[]

methods

Instance Methods

addDeprecations ( deprecations )
private pri

This method applies a versioned, deprecation declaration to this class. This is typically called by the deprecated config.

Parameters

deprecations :  Object

append ( el, values, [returnElement] ) : HTMLElement/Ext.dom.Element

Applies the supplied values to the template and appends the new node(s) to the specified el.

For example usage see Ext.Template.

Parameters

el :  String/HTMLElement/Ext.dom.Element

The context element

values :  Object/Array

The template values. See applyTemplate for details.

returnElement :  Boolean (optional)

true to return an Ext.Element.

Returns

:HTMLElement/Ext.dom.Element

The new node or Element

apply ( values ) : String

Returns an HTML fragment of this template with the specified values applied.

Parameters

values :  Object/Array

The template values. Can be an array if your params are numeric:

var tpl = new Ext.Template('Name: {0}, Age: {1}');
tpl.apply(['John', 25]);

or an object:

var tpl = new Ext.Template('Name: {name}, Age: {age}');
tpl.apply({name: 'John', age: 25});

Returns

:String

The HTML fragment

applyOut ( values, out ) : Array

Appends the result of this template to the provided output array.

Parameters

values :  Object/Array

The template values. See apply.

out :  Array

The array to which output is pushed.

Returns

:Array

The given out array.

applyTemplate ( values ) : String

Alias for apply. Returns an HTML fragment of this template with the specified values applied.

Parameters

values :  Object/Array

The template values. Can be an array if your params are numeric:

var tpl = new Ext.Template('Name: {0}, Age: {1}');
tpl.apply(['John', 25]);

or an object:

var tpl = new Ext.Template('Name: {name}, Age: {age}');
tpl.apply({name: 'John', age: 25});

Returns

:String

The HTML fragment

callOverridden ( args ) : Object
deprecated dep protected pro

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"

Parameters

args :  Array/Arguments

The arguments, either an array or the arguments object from the current method, for example: this.callOverridden(arguments)

Returns

:Object

Returns the result of calling the overridden method

Deprecated since version 4.1.0
Use method-callParent instead.

callParent ( args ) : Object
protected pro

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.

Parameters

args :  Array/Arguments

The arguments, either an array or the arguments object from the current method, for example: this.callParent(arguments)

Returns

:Object

Returns the result of calling the parent method

callSuper ( args ) : Object
protected pro

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".

Parameters

args :  Array/Arguments

The arguments, either an array or the arguments object from the current method, for example: this.callSuper(arguments)

Returns

:Object

Returns the result of calling the superclass method

compile Ext.XTemplate
chainable ch

Does nothing. XTemplates are compiled automatically, so this function simply returns this.

Returns

:Ext.XTemplate

this

constructor ( html, [config] )

Creates new template.

Parameters

html :  String...

List of strings to be concatenated into template. Alternatively an array of strings can be given, but then no config object may be passed.

config :  Object (optional)

Config object

destroy

This method is called to cleanup an object and its resources. After calling this method, the object should not be used any further in any way, including access to its methods and properties.

To prevent potential memory leaks, all object references will be nulled at the end of destruction sequence, unless clearPropertiesOnDestroy is set to false.

evalCompiled ( $ )
private pri

Parameters

$ :  Object

evaluate ( values )
private pri

Do not create the substitution closure on every apply call

Parameters

values :  Object

getConfig ( [name], [peek] ) : Object

Returns a specified config property value. If the name parameter is not passed, all current configuration options will be returned as key value pairs.

Parameters

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

Returns

:Object

The config property value.

getInitialConfig ( [name] ) : Object/Mixed

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'.

Parameters

name :  String (optional)

Name of the config option to return.

Returns

:Object/Mixed

The full config object or a single config value when name parameter specified.

hasConfig ( name )
private pri

Parameters

name :  String

initConfig ( instanceConfig ) : Ext.Base
chainable ch protected pro

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'

Parameters

instanceConfig :  Object

Returns

:Ext.Base

this

insertAfter ( el, values, [returnElement] ) : HTMLElement/Ext.dom.Element

Applies the supplied values to the template and inserts the new node(s) after el.

Parameters

el :  String/HTMLElement/Ext.dom.Element

The context element

values :  Object/Array

The template values. See applyTemplate for details.

returnElement :  Boolean (optional)

true to return a Ext.Element.

Returns

:HTMLElement/Ext.dom.Element

The new node or Element

insertBefore ( el, values, [returnElement] ) : HTMLElement/Ext.dom.Element

Applies the supplied values to the template and inserts the new node(s) before el.

Parameters

el :  String/HTMLElement/Ext.dom.Element

The context element

values :  Object/Array

The template values. See applyTemplate for details.

returnElement :  Boolean (optional)

true to return a Ext.Element.

Returns

:HTMLElement/Ext.dom.Element

The new node or Element

insertFirst ( el, values, [returnElement] ) : HTMLElement/Ext.dom.Element

Applies the supplied values to the template and inserts the new node(s) as the first child of el.

Parameters

el :  String/HTMLElement/Ext.dom.Element

The context element

values :  Object/Array

The template values. See applyTemplate for details.

returnElement :  Boolean (optional)

true to return a Ext.Element.

Returns

:HTMLElement/Ext.dom.Element

The new node or Element

overwrite ( el, values, [returnElement] ) : HTMLElement/Ext.dom.Element

Applies the supplied values to the template and overwrites the content of el with the new node(s).

Parameters

el :  String/HTMLElement/Ext.dom.Element

The context element

values :  Object/Array

The template values. See applyTemplate for details.

returnElement :  Boolean (optional)

true to return a Ext.Element.

Returns

:HTMLElement/Ext.dom.Element

The new node or Element

set ( html, [compile] ) : Ext.Template
chainable ch

Sets the HTML used as the template and optionally compiles it.

Parameters

html :  String

compile :  Boolean (optional)

True to compile the template.

Returns

:Ext.Template

this

setConfig ( name, [value] ) : Ext.Base
chainable ch

Sets a single/multiple configuration options.

Parameters

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.

Returns

:Ext.Base

this

statics Ext.Class
protected pro

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

Returns

:Ext.Class
Static Methods

addConfig ( config, [mixinClass] )
static sta private pri

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.

Parameters

config :  Object

mixinClass :  Ext.Class (optional)

The mixin class if the configs are from a mixin.

addInheritableStatics ( members ) :
chainable ch static sta private pri

Parameters

members :  Object

Returns

:

addMember ( name, member ) :
chainable ch static sta private pri

Parameters

name :  Object

member :  Object

Returns

:

addMembers ( members, [isStatic], [privacy] ) :
chainable ch static sta

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();

Parameters

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

Returns

:

addStatics ( members ) : Ext.Base
chainable ch static sta

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() { ... };
});

Parameters

members :  Object

Returns

:Ext.Base

this

borrow ( fromClass, members ) : Ext.Base
static sta private pri

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 '$$$'
steve.printMoney(); // alerts '$$$$$$$'

Parameters

fromClass :  Ext.Base

The class to borrow members from

members :  Array/String

The names of the members to borrow

Returns

:Ext.Base

this

callParent ( args )
static sta protected pro

Parameters

args :  Object

callSuper ( args )
static sta protected pro

Parameters

args :  Object

create Object
static sta

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.

Returns

:Object

the created instance.

createAlias ( alias, origin )
static sta

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()

Parameters

alias :  String/Object

The new method name, or an object to set multiple aliases. See flexSetter

origin :  String/Object

The original method name

extend ( parentClass )
static sta private pri

Parameters

parentClass :  Object

from ( el, [config] ) : Ext.Template
static sta

Creates a template from the passed element's value (display:none textarea, preferred) or innerHTML.

Parameters

el :  String/HTMLElement

A DOM element or its id

config :  Object (optional)

Config object

Returns

:Ext.Template

The created template

getConfigurator Ext.Configurator
static sta private pri

Returns the Ext.Configurator for this class.

Returns

:Ext.Configurator

getName String
static sta

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'

Returns

:String

className

getTpl ( instance, name ) : Ext.XTemplate
static sta protected pro

Gets an XTemplate from an object (an instance of an Ext#define'd class). Many times, templates are configured high in the class hierarchy and are to be shared by all classes that derive from that base. To further complicate matters, these templates are seldom actual instances but are rather configurations. For example:

 Ext.define('MyApp.Class', {
     extraCls: 'extra-class',

     someTpl: [
         '<div class="{%this.emitClass(out)%}"></div>',
     {
         // Member fn - outputs the owing class's extra CSS class
         emitClass: function(out) {
             out.push(this.owner.extraCls);
         }
     }]
 });

The goal being to share that template definition with all instances and even instances of derived classes, until someTpl is overridden. This method will "upgrade" these configurations to be real XTemplate instances in place (to avoid creating one instance per object).

The resulting XTemplate will have an owner reference injected which refers back to the owning object whether that is an object which has an own instance, or a class prototype. Through this link, XTemplate member functions will be able to access prototype properties of its owning class.

Parameters

instance :  Object

The object from which to get the XTemplate (must be an instance of an Ext#define'd class).

name :  String

The name of the property by which to get the XTemplate.

Returns

:Ext.XTemplate

The XTemplate instance or null if not found.

mixin ( name, mixinClass ) :
chainable ch static sta private pri

Used internally by the mixins pre-processor

Parameters

name :  Object

mixinClass :  Object

Returns

:

onExtended ( fn, scope ) :
chainable ch static sta private pri

Parameters

fn :  Object

scope :  Object

Returns

:

override ( members ) : Ext.Base
chainable ch static sta

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).

Parameters

members :  Object

The properties to add to this class. This should be specified as an object literal containing one or more properties.

Returns

:Ext.Base

this class

triggerExtended
static sta private pri

Ext JS 6.2.1 - Modern Toolkit