The documentation for the ExtReact product diverges somewhat from the
documentation of other Sencha products. The sections below describe
documentation for all products except where indicated as unique to
ExtReact.
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.
ExtReact component classes list the configurable name prominently at the top of the API class doc followed by the fully-qualified class name.
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.
ExtReact component classes display
configuration options as props
ExtReact component classes do not list
properties as a dedicated member type, but rather as
read only props
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.
All ExtReact props are bindable
unless decorated as immutable
Immutable ExtReact props may not be use as a configurable prop when instantiating a component
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
Or in the case of an ExtReact component class this
indicates a member of type prop
- 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.
ExtReact component classes do not hoist the getter /
setter methods into the prop. All methods will be described in the
Methods section
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.
Ext.Mixin
Ext.mixin.Accessible
Ext.mixin.Bindable
Ext.mixin.Bufferable
Ext.mixin.ComponentDelegation
Ext.mixin.ConfigProxy
Ext.mixin.Container
Ext.mixin.Factoryable
Ext.mixin.Focusable
Ext.mixin.FocusableContainer
Ext.mixin.Identifiable
Ext.mixin.Inheritable
Ext.mixin.ItemRippler
Ext.mixin.Keyboard
Ext.mixin.Observable
Ext.mixin.Pluggable
Ext.mixin.Queryable
List is a custom styled DataView which allows Grouping, Indexing, Icons, and a Disclosure.
A more advanced example showing a list of people grouped by last name:
If you want to dock items to the bottom or top of a List, you can use the scrollDock configuration on child items in this List. The following example adds a button to the bottom of the List.
Can be either a Store instance or a configuration object that will be turned into a Store. The Store is used to populate the set of items that will be rendered in the DataView. See the DataView intro documentation for more information about the relationship between Store and DataView.
DOM tabIndex attribute to set on the active Focusable child of this container when using the "Roaming tabindex" technique.
Defaults to:
0
The item from the cfg-items collection that will be active first. This is usually only meaningful in a Ext.layout.Card, where only one item can be active at a time. If passes a string, it will be assumed to be a Ext.ComponentQuery selector.
Defaults to:
0
Set this to true
to enable focusing disabled child items via keyboard.
Defaults to:
false
A flag indicating that this component should be above its floated siblings.
This may be a positive number to prioritize the ordering of multiple visible always on top components.
This may be set to a negative number to prioritize a component to the bottom of the z-index stack.
Defaults to:
false
Available since: 6.2.0
An object containing ARIA attributes to be set
on this Component's ARIA element. Use this to set the attributes that cannot be
determined by the Component's state, such as aria-live, aria-flowto, etc.
Note that this config is only meaningful at the Component rendering time, and setting it after that will do nothing.
DOM selector for a child element that is to be used
as description for this Component, set in aria-describedby attribute.
The selector works the same way as ariaLabelledBy.
ARIA label for this Component. It is best to use
ariaLabelledBy option instead, because screen readers prefer
aria-labelledby attribute to aria-label. ariaLabel and
ariaLabelledBy config options are mutually exclusive.
DOM selector for a child element that is to be used
as label for this Component, set in aria-labelledby attribute.
If the selector is by id, the label element can be any existing element,
not necessarily a child of the main Component element.
ariaLabelledBy and ariaLabel config options are
mutually exclusive, and ariaLabelledBy has the higher precedence.
Set this config to false to limit rendering data to just the record's data
or to an object to describe the desired associated data. This data is used to
satisfy the itemTpl. The default of true will gather all associated data
that is currently loaded. This can be expensive. If only a small amount of the
available data is needed, this config can speed up the rendering process.
For example, if an OrderItem needs the Item data but not its parent Order,
this config can be set like so:
associatedData: {
item: true
}
Given the above, only the item association (to the Item record) will be
gathered into the render data.
For more details, see getData.
Defaults to:
true
Available since: 6.5.0
If true, children will be destroyed as soon as they are removed
from this container.
Defaults to:
true
May be set to false for improved layout performance if auto-sizing is not required.
Some versions of Safari, both desktop and mobile, have very slow performance if the application has deeply nested containers due to the following WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=150445
Applications that experience performance issues in the affected versions of
Safari may need to turn off autoSizing globally for all Container instances
by placing the following override in the application's "overrides" directory:
Ext.define('MyApp.overrides.Container', {
override: 'Ext.Container',
config: {
autoSize: false
}
});
Once auto-sizing support has turned off by default, it can be selectively
turned back on only on those container instances that explicitly need auto-sizing
behavior by setting autoSize to true.
This option can also be used to allow children to be sized in percentage units as a workaround for the following browser bug: https://bugs.webkit.org/show_bug.cgi?id=137730
To illustrate, the following example should render a 200px by 200px green box
(the container) with a yellow box inside of it (the child item). The child
item's height and width are both set to '50%' so the child should render
exactly 100px by 100px in size.
<Container
height={200}
width={200}
style="background: green"
>
<Component
style="background: yellow"
height="50%"
width="50%"
/>
</Container>
All browsers except for Safari render the previous example correctly, but
Safari does not assign a height to the component. To make percentage-sized
children work in Safari, simply set autoSize to false on the container.
Since the underlying implementation works by absolutely positioning the container's
body element, this option can only be used when the container is not
"shrink wrapping" the content in either direction. When autoSize is
set to false, shrink wrapped dimension(s) will collapse to 0.
Defaults to:
true
If true, then, when showBy or alignTo fallback on
constraint violation only takes place along the major align axis.
That is, if alignment "l-r" is being used, and axisLock: true is used, then if constraints
fail, only fallback to "r-l" is considered.
Defaults to:
null
Enables or disables bordering on this component. The following values are accepted:
null or `true (default): Do nothing and allow the border to be specified by the theme.false: suppress the default border provided by the theme.Please note that enabling bordering via this config will not add a border-color
or border-style CSS property to the component; you provide the border-color
and border-style via CSS rule or style configuration
(if not already provide by the theme).
Defaults to:
null
The absolute bottom position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
Explicitly setting this value will make this Component become 'positioned', which means it will no
longer participate in the layout of the Container that it resides in.
Defaults to:
null
The amount of items we render additionally besides the ones currently visible. We try to prevent the rendering of items while scrolling until the next time you stop scrolling. If you scroll close to the end of the buffer, we start rendering individual items to always have the minimumBufferSize prepared.
Defaults to:
20
Configure this as true to have this Component centered within its Container.
Setting this value to true will make this Component become 'positioned', which means it will no
longer participate in the layout of the Container that it resides in.
Defaults to:
false
The CSS class to add to this widget's element, in addition to the baseCls. In many cases, this property will be specified by the derived widget class. See userCls for adding additional CSS classes to widget instances (such as items in a Container).
Defaults to:
null
A specification of the constraint to apply when showBy or alignTo is called to align a floated or positioned component.
Defaults to the parent container for positioned components (components which have their top, right, bottom or left set to move them out of their container's layout flow).
Defaults to the viewport for floated components.
May be a Ext.ComponentQuery selector to find an ancestor component to constrain within.
May be false to specify that constraining is not applied.
You may also specify an element, or a Ext.util.Region
This config is used to control the internal Container created to manage this list's items. One common use for this is to apply a userCls to the item container.
{
xtype: 'list',
container: {
userCls: 'mylist-cls'
},
...
}
Available since: 6.0.1
The configured element will automatically be added as the content of this component. When you pass a string, we expect it to be an element id. If the content element is hidden, we will automatically show it.
Defaults to:
null
The initial set of data to apply to the tpl to
update the content area of the Component.
Defaults to:
null
Specifies a child Component to receive focus when this Container's method-focus method is called. Should be a valid Ext.ComponentQuery selector.
Defaults to:
null
A set of default configurations to apply to all child Components in this Container.
It's often useful to specify defaults when creating more than one children with similar configurations. For example here we can specify that each child has a height of 20px and avoid repeating the declaration for each one:
<Container
fullscreen
defaults={{
height: 20
}}
>
<Panel>Panel 1</Panel>
<Panel>Panel 2</Panel>
</Container>
Defaults to:
null
Set to false to not defer emptyText being applied until the store's first
load.
Defaults to:
true
When set to true, tapping on the DataView's background (i.e. not on an item in the DataView) will deselect any currently selected items.
Defaults to:
true
Set to true to disable selection styling. This only affects the presentation
of the selection not the internal selection state.
Defaults to:
false
A property to check on each record to display the disclosure on a per record basis. This property must be false to prevent the disclosure from being displayed on the item.
Defaults to:
'disclosure'
Set to true to call show and false to call hide. Unlike the hidden
config, changing this config will potentially involve animations to show or
hide the component.
Defaults to:
null
Available since: 6.5.0
The dock position of this component in its container. Can be left, top, right or bottom.
Notes
You must use a HTML5 doctype for docked bottom to work. To do this, simply add the following code to the HTML file:
<!doctype html>
So your index.html file should look a little like this:
<!doctype html>
<html>
<head>
<title>MY application title</title>
...
Defaults to:
null
Configuration options to make this Component draggable
Defaults to:
null
The text to render when the rendering of the item via itemTpl produces no text.
Defaults to:
'\xA0'
The text to display in the view when there is no data to display.
Set this to true to display the default message.
This component config object is used to create the emptyText component.
Available since: 6.5.0
The config to set on the emptyText component to contain the desired text.
Defaults to:
"html"
Available since: 6.5.0
If this property is specified by the target class of this mixin its properties are
used to configure the created Ext.Factory.
The flex of this item if this item item is inside a Ext.layout.HBox or Ext.layout.VBox layout.
You can also update the flex of a component dynamically using the Ext.layout.FlexBox#setItemFlex method.
When supplied as a string or number this option supports the same syntax as CSS flex. For example:
flex: '1 2 auto'
sets flex-grow property to 0, flex-shrink to 2 and flex-basis to
'auto'.
The default flex-shrink value for box layout items is set to 0 in the
stylesheet, which is different from the browser's default flex-shrink value
of 1. This accommodates the majority use case for applications since where
non-flexed components are typically not expected to shrink smaller than their
default size.
For convenience when only a single number is supplied it is used as the value
for both flex-grow and flex-shrink, for example flex: 3 is the same as
flex: '3 3'
An object form is also accepted:
flex: {
grow: 1,
shrink: 2,
basis: 'auto'
}
When the object form is supplied shrink always defaults to 0 regardless
of the value of grow.
Although 'auto' is the default value for flex-basis, flex-basis defaults to 0%
when flex is supplied as a single numeric or string value (e.g. flex: 1). If
this behavior is not desired either explicitly set flex-basis to 'auto' or use
the object form to set only grow and/or shrink:
flex: {
grow: 2
}
A Component may be floated above all other components in the application. This means that the component is absolutely positioned, and will move to the front and occlude other sibling floated component if clicked.
A Floated component may have floated descendants. It will bring these decendants to the front with it when brought to the front of its sibling floated components.
By default, descendant floated components are all positioned using the viewport coordinate system. To make a floating
component a positioning parent for descendants, and have the ancestors positioned relatively, configure the parent
floated component with cfg-relative: true.
Defaults to:
false
Available since: 6.2.0
CSS class that will be added to focused component's focusClsEl, and removed when component blurs.
Defaults to:
'x-focused'
The element that will have the focusCls applied when component's focusEl is focused.
The element that will be focused when focus method is called on this component. Usually this is the same element that receives focus via mouse clicks, taps, and pressing Tab key.
Defaults to:
'el'
Enable or disable navigation with arrow keys for this FocusableContainer. This option may be useful with nested FocusableContainers, when only the root container should handle keyboard events.
Defaults to:
false
The name of the element that FocusableContainer should bind its keyboard handler to. Similar to ariaEl, this name is resolved to the Ext.dom.Element instance after rendering.
Defaults to:
"el"
Force the component to take up 100% width and height available, by adding it to Ext.Viewport.
A single string or an array of strings (optionally followed by an
object containing template methods) used to create an Ext.XTemplate, or an
Ext.XTemplate instance.
A single string:
groupHeaderTpl: 'Group: {name}'
Using a string array (followed by an options object):
groupHeaderTpl: [
'Group: ',
'<div>{name:this.formatName}</div>',
{
formatName: function(name) {
return Ext.String.trim(name);
}
}
]
The data object available to the template provides the following properties:
name The grouping string of the groupField
for the group header. This string is the string produced by grouper's
groupFn.value The value of the groupField
for the group header being rendered.columnName The column header associated with the field being grouped
by if there is a column for the field, falls back to the groupField.groupField The field name being grouped by.html The rendering of the value as handled by the cell (for a grid,
otherwise the same as name).children An array containing the child records for the group. This is not
available if the store is a Ext.data.BufferedStore.Available since: 6.5.0
Whether or not to group items in the provided Store with a header for each item.
Defaults to:
null
The height of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
By default, if this is not explicitly set, this Component's element will simply have its own natural size.
If set to auto, it will set the width to null meaning it will have its own natural size.
Defaults to:
null
Animation effect to apply when the Component is being hidden. Typically you want to use an outbound animation type such as 'fadeOut' or 'slideOut'. For more animations, check the Ext.fx.Animation#type config.
Defaults to:
null
A String which specifies how this component's DOM element will be hidden. The accepted values are any of these:
'clip' : Hide using clip.'display' : Hide using display.'offsets' : Hide using positioning offsets.'opacity' : Hide using opacity.'visibility' : Hide using visibility.Hiding using display results in having no dimensions as well as resetting
scroll positions to 0.
The other modes overcome this but may have different trade-offs in certain circumstances.
Defaults to:
'display'
Available since: 6.5.0
When using a modal Component, setting this to true
will hide the modal mask and the Container when the mask is tapped on.
Defaults to:
null
Optional HTML content to render inside this Component, or a reference to an existing element on the page.
Defaults to:
null
The unique id of this component instance.
It should not be necessary to use this configuration except for singleton objects in your application. Components created with an id may be accessed globally using Ext.getCmp.
Instead of using assigned ids, use the itemId config, and Ext.ComponentQuery which provides selector-based searching for Sencha Components analogous to DOM querying. The Container class contains shortcut methods to query its descendant Components by selector.
Note that this id will also be used as the element id for the containing HTML element that is rendered to the page for this component. This allows you to write id-based CSS rules to style the specific instance of this component uniquely, and also to select sub-elements using this component's id as the parent.
Note: to avoid complications imposed by a unique id also see itemId.
Defaults to an auto-assigned id.
DOM tabIndex attribute to set on inactive Focusable children of this container when using the "Roaming tabindex" technique. This value rarely needs to be changed from its default.
Defaults to:
-1
Set to true to render an alphabet IndexBar docked on the right. This can also
be a config object for the Ext.dataview.IndexBar component.
Defaults to:
false
Set this to false to render all items in this list, and render them relatively. Note that this configuration can not be dynamically changed after the list has instantiated.
Defaults to:
false
When set to true the items within the DataView will have their display set to
inline-block and be arranged horizontally. By default the items will wrap to
the width of the DataView. Passing an object with { wrap: false } will turn
off this wrapping behavior and overflowed items will need to be scrolled to
horizontally.
A string to add to the immediate parent element of the inner items of this
container. That is, items that are not docked, positioned or floated. In
some containers, positioned items may be in this same element.
Defaults to:
null
Available since: 6.5.0
true in this class to identify an object as an instantiated Container, or subclass thereof.
Defaults to:
true
true to identify an object as an instantiated DataView, or subclass thereof.
Defaults to:
true
true in this class to identify an object as an instantiated Observable, or subclass thereof.
Defaults to:
true
The object is used to configure the data items created by this data view. The
xtype property of this config overrides the container's defaultType.
A class to add to the element that immediate wraps the item content produced
by the itemTpl (the "inner-html" element).
Available since: 6.5.0
This object allows you to map Ext.data.Model fields to specific configs on component items.
The itemDataMap object's keys describe the target objects to receive data
from the associated record. These keys are either '#'
(for the item itself) or a reference to
a component contained in the item.
For each target listed in itemDataMap, the value is another map describing
the config name (in the key) and the data field name (as the value).
For example:
itemDataMap: {
'#': {
title: 'fullName'
},
text: {
html: 'name'
}
}
The above is equivalent to:
item.setTitle(item.getRecord().get('fullName'));
item.lookup('text').setHtml(item.getRecord().get('name'));
For more complex mapping of data to item, you should use the data binding as described in the class documentation.
Available since: 6.5.0
This allows you to set the default item height and is used to roughly calculate the amount of items needed to fill the list. By default items are around 50px high.
Defaults to:
null
An itemId can be used as an alternative way to get a reference to a component when no object reference is
available. Instead of using an id with Ext#getCmp, use itemId with
Ext.Container#getComponent which will retrieve itemId's or id's. Since itemId's are an
index to the container's internal MixedCollection, the itemId is scoped locally to the container - avoiding
potential conflicts with Ext.ComponentManager which requires a unique id.
Also see id, Ext.Container#query, Ext.Container#down and Ext.Container#child.
The tpl to use for each of the items displayed in this DataView. This template
produces HTML and can use the follow CSS class names to influence the response
to tapping/clicking child elements:
x-no-ripple - Disables itemRipple (primarily for theme-material)x-item-no-select - Disables item selectionx-item-no-tap - Disables all click or tap processingFor example:
itemTpl: '<div>' +
'...' +
'<div class="x-item-no-select x-fa fa-gear"></div>' +
'...' +
'</div>'
Because this template produces HTML from record data it can expose applications to security issues if user-provided data is not properly encoded. For example, in previous releases this template was:
itemTpl: '<div>{text}</div>'
If the 'text' field contained HTML scripts, these would be evaluated into
the application. The itemTpl in version 6.5 is now:
itemTpl: '<div>{text:htmlEncode}</div>'
Defaults to:
'<div>{text:htmlEncode}</div>
For use by subclasses, not applications.
By default the dataview items are focusable, and navigable using an Ext.dataview.NavigationModel.
Grid set this to false to make rows non-focusable in favour of cells.
Defaults to:
true
An object containing handlers for keyboard events. The property names of this object are the key name and any modifiers. The values of the properties are the descriptors of how to handle each event.
The handler descriptor can be simply the handler function (either the literal function or the method name), or it can be an object with these properties:
handler: The function or its name to call to handle the event.scope: The this pointer context (can be "this" or "controller").event: An optional override of the key event to which to listen.Important: Calls to setKeyMap do not replace the entire keyMap but
instead update the provided mappings. That is, unless null is passed as the
value of the keyMap which will clear the keyMap of all entries.
scope : String
The default scope to apply to key handlers
which do not specify a scope. This is processed the same way as the scope of
cfg-listeners. It defaults to the "controller", but using 'this'
means that an instance method will be used.
Enables or disables processing keys in the keyMap. This value starts as
null and if it is null when initKeyMap is called, it will automatically
be set to true. Since initKeyMap is called by Ext.Component at the
proper time, this is not something application code normally handles.
Defaults to:
null
Configuration for this Container's layout. Example:
<Container
layout={{
type: "hbox",
align: "middle"
}}
>
<Panel
html="hello"
flex={1}
bodyStyle={{
background: "#000",
color: "#fff"
}}
/>
<Panel
html="world"
flex={2}
bodyStyle={{
background: "#f00",
color: "#fff"
}}
/>
</Container>
Defaults to:
'auto'
The absolute left position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
Explicitly setting this value will make this Component become 'positioned', which means it will no
longer participate in the layout of the Container that it resides in.
Defaults to:
null
A config object containing one or more event handlers to be added to this object during initialization. This should be a valid listeners config object as specified in the addListener example for attaching multiple handlers at once.
DOM events from Ext JS Ext.Component
While some Ext JS Component classes export selected DOM events (e.g. "click", "mouseover" etc), this is usually
only done when extra value can be added. For example the DataView's itemclick event passing the node clicked on. To access DOM events directly from a
child element of a Component, we need to specify the element option to identify the Component property to add a
DOM listener to:
new Ext.panel.Panel({
width: 400,
height: 200,
dockedItems: [{
xtype: 'toolbar'
}],
listeners: {
click: {
element: 'el', //bind to the underlying el property on the panel
fn: function(){ console.log('click el'); }
},
dblclick: {
element: 'body', //bind to the underlying body property on the panel
fn: function(){ console.log('dblclick body'); }
}
}
});
If specified, gives an explicit height for a floated data view when it is showing the loadingText, if that is specified. This is useful to prevent the view's height from collapsing to zero when the loading mask is applied and there are no other contents in the data view.
A string to display during data load operations. This text will be displayed in a loading div and the view's contents will be cleared while loading, otherwise the view's contents will continue to display normally until the new data is loaded and the contents are replaced.
Defaults to:
'Loading...'
true to enable border management of docked items. When enabled, borders of docked
items will collapse where they meet to avoid duplicated borders.
Defaults to:
false
The margin to use on this Component. Can be specified as a number (in which case all edges get the same margin) or a CSS string like '5 10 10 10'
Defaults to:
null
A configuration to allow you to mask this container.
You can optionally pass an object block with and xtype of loadmask, and an optional message value to
display a loading mask. Please refer to the Ext.LoadMask component to see other configurations.
<Container
html="Hello World"
masked={{
xtype: "loadmask",
message: "My Message"
}}
/>
Alternatively, you can just call the setter at any time with true/false to show/hide the mask:
setMasked(true); //show the mask
setMasked(false); //hides the mask
There are also two convenient methods, mask and unmask, to allow you to mask and unmask this container at any time.
Defaults to:
null
The maximum height of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
If set to auto, it will set the width to null meaning it will have its own natural size.
Note that this config will not apply if the Component is 'positioned' (absolutely positioned or centered)
Defaults to:
null
The number of components to cache when no longer needed (as opposed to calling
destroy on them).
Defaults to:
20
The maximum width of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
If set to auto, it will set the width to null meaning it will have its own natural size.
Note that this config will not apply if the Component is 'positioned' (absolutely positioned or centered)
Defaults to:
null
The minimum height of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
If set to auto, it will set the width to null meaning it will have its own natural size.
Defaults to:
null
The minimum width of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
If set to auto, it will set the width to null meaning it will have its own natural size.
Defaults to:
null
true to make this Component modal. This will create a mask underneath the Component
that covers its parent and does not allow the user to interact with any other Components until this
Component is dismissed.
Defaults to:
null
This config enables binding to your Ext.data.Model#validators. This
is only processed by form fields (e.g., Ext.field.*) at present, however, this
setting is inherited and so can be set on a parent container.
When set to true by a component (or by an ancestor container), the validators
of for any {@Ext.data.Model record} fields will be used wherever the value is
bound to such data fields.
While this config can be set arbitrarily high in the component hierarchy, doing
so can create a lot overhead if most of your form fields do not actually rely on
validators in your data model.
Using this setting for a form that is bound to an Ext.data.Model might look
like this:
{
xtype: 'panel',
modelValidation: true,
items: [{
xtype: 'textfield',
bind: '{theUser.firstName}'
},{
xtype: 'textfield',
bind: '{theUser.lastName}'
},{
xtype: 'textfield',
bind: '{theUser.phoneNumber}'
},{
xtype: 'textfield',
bind: '{theUser.email}'
}]
}
Defaults to:
null
Available since: 6.5.0
When true child components are tracked by their name property and can be
retrieved using the lookupName method.
Defaults to:
false
true to display a disclosure icon on each list item.
The list will still fire the disclose event, and the event can be stopped before itemtap.
By setting this config to a function, the function passed will be called when the disclosure
is tapped.
Finally you can specify an object with a 'scope' and 'handler'
property defined. This will also be bound to the tap event listener
and is useful when you want to change the scope of the handler.
Defaults to:
null
The padding to use on this Component. Can be specified as a number (in which case all edges get the same padding) or a CSS string like '5 10 10 10'
Defaults to:
null
Whether or not to pin headers on top of item groups while scrolling for an iPhone native list experience.
Defaults to:
true
A config object for the pinned header. Only applicable when pinHeaders
is true.
An object or array of objects that will provide custom functionality for this
component. If a string is provided or a string is one of the elements of the
array, that string is treated as the type alias. For example, "listpaging"
is the type alias for Ext.plugin.ListPaging. The full alias includes the
"plugin." prefix (i.e., 'plugin.listpaging').
Plugins should derive from Ext.plugin.Abstract but this is not required. The
only requirement for a valid plugin is that it contain an init() method that
accepts a reference to the owning component.
When a component is created, if any plugins are available, the component will
call the init method on each plugin,
passing a reference to itself. Each plugin can then call methods or respond to
events on the component as needed to provide its functionality.
A plugin by alias:
var list = Ext.create({
xtype: 'list',
itemTpl: '<div class="item">{title}</div>',
store: 'Items',
plugins: 'listpaging'
});
Multiple plugins by alias:
var list = Ext.create({
xtype: 'list',
itemTpl: '<div class="item">{title}</div>',
store: 'Items',
plugins: ['listpaging', 'pullrefresh']
});
Single plugin by class name with config options:
var list = Ext.create({
xtype: 'list',
itemTpl: '<div class="item">{title}</div>',
store: 'Items',
plugins: {
type: 'listpaging',
autoPaging: true
}
});
Multiple plugins by type and class name with config options:
var list = Ext.create({
xtype: 'list',
itemTpl: '<div class="item">{title}</div>',
store: 'Items',
plugins: [{
xclass: 'Ext.plugin.PullRefresh',
pullRefreshText: 'Pull to refresh...'
}, {
type: 'listpaging',
autoPaging: true
}]
});
The amount of delay between the tapstart and adding the pressedCls.
Defaults to:
100
true to prevent the item selection when the user
taps a disclose icon.
Defaults to:
true
A model instance which updates the Component's html based on it's tpl. Similar to the data configuration, but tied to to a record to make allow dynamic updates. This must be a model instance and not a configuration of one.
Defaults to:
null
If true, this container will be marked as being a point in the hierarchy where
references to items with a specified reference config will be held. The container
will automatically become a referenceHolder if a controller is specified.
See the introductory docs for Ext.container.Container for more information about references & reference holders.
Defaults to:
false
Set this to false if you make many updates to your list (like in an interval), but updates won't affect the item's height. Doing this will increase the performance of these updates.
Defaults to:
true
Only valid when a component is cfg-floated
Configure this as true if you require descendant floated components to be positioned relative to this
component's coordinate space, not the viewport's coordinate space.
Note: The coordinate space is this Component's encapsulating element's area. Not that of the inner element in which static child items are rendered by the layout.
Defaults to:
false
Available since: 6.2.0
When true, FocusableContainer
will reset last focused position whenever focus leaves the container.
Subsequent tabbing into the container will always focus the first eligible
child item.
When false, subsequent tabbing into the container will focus the child
item that was last focused before.
Defaults to:
false
By default, using the TAB key to reenter a grid restores focus to the cell which was last focused.
Setting this to false means that TAB from above focuses the first rendered cell
and TAB from below focuses the last rendered cell.
Be aware that due to buffered rendering, the last row of a 1,000,000 row grid may not be available to receive immediate focus.
Defaults to:
true
The absolute right position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
Explicitly setting this value will make this Component become 'positioned', which means it will no
longer participate in the layout of the Container that it resides in.
Defaults to:
null
Set to truthy, Color or Object value for the ripple.
Available since: 6.5.0
color : String
The background color of the ripple.
position : Array
Position for the ripple to start at [x,y]. Determines if a Ripple effect should happen whenever this element is pressed.
For example: { ripple: true }
Or:
{
ripple: {
color: 'red'
}
}
For complex components, individual elements can suppress ripples by adding the
x-no-ripple class to disable rippling for a tree of elements.
Set this to false to suppress the borders in between the items in this list.
By default the presence of borders in between the items is determined by the stylesheet.
Defaults to:
null
The dock position of a list's child items relative to the list itself. Can be top or bottom.
Ext.create('Ext.List', {
fullscreen: true,
itemTpl: '{firstName}',
data: [
{ firstName: 'Peter'},
{ firstName: 'Raymond'},
{ firstName: 'Egon'},
{ firstName: 'Winston'}
],
items: [{
xtype: 'component',
html: 'Docked!',
docked: 'top'
},{
xtype: 'component',
html: 'Scroll Docked!',
scrollDock: 'top'
}]
});
Defaults to:
null
Scroll the DataView to the top when the DataView is refreshed.
Defaults to:
true
Configuration options to make this Component scrollable. Acceptable values are:
true to enable auto scrolling.false (or null) to disable scrolling - this is the default.x or horizontal to enable horizontal scrolling onlyy or vertical to enable vertical scrolling onlyAlso accepts a configuration object for a Ext.scroll.Scroller if
if advanced configuration is needed.
The getter for this config returns the Ext.scroll.Scroller instance. You can use the Scroller API to read or manipulate the scroll position:
// scrolls the component to 5 on the x axis and 10 on the y axis
component.getScrollable().scrollTo(5, 10);
Defaults to:
true
A configuration object which allows passing of configuration options to create or reconfigure a Ext.dataview.selection.Model.
May contain the following options:
- mode `'single'`, '`simple'` or `'multi'` Simple and Multi are similar in that
click toggle selection. Multi allows SHIFT+click and CTRL+click. Single simply
toggles an item between selected and unselected (unless `deselectable` is set to `false`)
- deselectable Configure as false to disallow deselecting down to zero selections.
Defaults to:
true
Configure as true for the component to have a drop shadow. 'false' will suppress any default shadow.
By default the theme will determine the presence of a shadow.
Available since: 6.2.0
Only valid when a component is cfg-floated
Configure as true for the component to use an <iframe> as an underlay to ensure certain non-standard
browser plugins are occluded by this component.
Defaults to:
false
Available since: 6.2.0
Animation effect to apply when the Component is being shown. Typically you want to use an inbound animation type such as 'fadeIn' or 'slideIn'. For more animations, check the Ext.fx.Animation#type config.
Defaults to:
null
Set this to true if you want the items in the list to be zebra striped, alternating their background color.
Defaults to:
false
Additional CSS styles that will be rendered into an inline style attribute when the widget is rendered.
You can pass either a string syntax:
style: 'background:red'
Or by using an object:
style: {
background: 'red'
}
When using the object syntax, you can define CSS Properties by using a string:
style: {
'border-left': '1px solid red'
}
Although the object syntax is much easier to read, we suggest you to use the string syntax for better performance.
Defaults to:
null
True to automatically call toFront when a cfg-floated Component is shown.
Defaults to:
true
The absolute top position of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
Explicitly setting this value will make this Component become 'positioned', which means it will no
longer participate in the layout of the Container that it resides in.
Defaults to:
null
Emulates the behavior of the CSS touch-action property in a cross-browser compatible manner.
Keys in this object are touch action names, and values are false to disable
a touch action or true to enable it. Accepted keys are:
panXpanYpinchZoomdoubleTapZoomAll touch actions are enabled (true) by default, so it is usually only necessary
to specify which touch actions to disable. For example, the following disables
only horizontal scrolling and pinch-to-zoom on the component's main element:
touchAction: {
panX: false,
pinchZoom: false
}
Touch actions can be specified on reference elements using the reference element name, for example:
// disables horizontal scrolling on the main element, and double-tap-zoom
// on the child element named "body"
touchAction: {
panY: false
body: {
doubleTapZoom: false
}
}
The primary motivation for setting the touch-action of an element is to prevent the browser's default handling of a gesture such as pinch-to-zoom, or drag-to-scroll, so that the application can implement its own handling of that gesture on the element. Suppose, for example, a component has a custom drag handler on its element and wishes to prevent horizontal scrolling of its container while it is being dragged:
Ext.create('Ext.Widget', {
touchAction: {
panX: false
},
listeners: {
drag: function(e) {
// implement drag logic
}
}
});
Defaults to:
true
A string, array of strings, or a function that returns JSX.
tpl = data =>
Note The data configuration must be set for any content to be shown in the component when using this configuration.
Defaults to:
null
The Ext.(X)Template method to use when updating the content area of the Component.
Valid modes are:
Defaults to:
'overwrite'
Determines what type of touch event is recognized as a touch on the container.
Defaults to:
tap
Determines what type of touch event causes an item to be selected.
Defaults to:
"childtap"
The ui or uis to be used on this Component
When a ui is configured, CSS class names are added to the element, created by appending the ui name(s) to each classCls and/or baseCls.
Defaults to:
true
Set this to true if you just want to have the list create simple items that use the itemTpl. These simple items still support headers, grouping and disclosure functionality but avoid container layouts and deeply nested markup. For many Lists using this configuration will drastically increase the scrolling and render performance.
Defaults to:
true
One or more CSS classes to add to the component's primary element. This config is intended solely for use by the component instantiator (the "user"), not by derived classes.
For example:
items: [{
xtype: 'button',
userCls: 'my-button'
...
}]
Defaults to:
true
Set to true to allow users to select text within this component.
Can also be any valid value for the CSS3 user-select property.
A value of true implies auto, while false implies none.
May also be an object keyed by child element name.
By default, the user cannot click+drag+select text/elements of the UI. Applications may want to enable user selection for specific DOM elements, such as the bodyElement of a component used as a tab panel. The tab and tab text would not be user selectable in this example, but the content area when the tab is selected would.
userSelectable: {
element: true, // optionally allow the element to be user selectable
bodyElement: true // optionally allow the component's body element to be user selectable
}
Defaults to:
false
Available since: 6.5.1
This value controls this item's order in a weighted Container (see parent).
Lower values gravitate towards the start of the container - the top in vertical layouts, the locale start side in horizontal layouts.
Defaults to:
0
The width of this Component; must be a valid CSS length value, e.g: 300, 100px, 30%, etc.
By default, if this is not explicitly set, this Component's element will simply have its own natural size.
If set to auto, it will set the width to null meaning it will have its own natural size.
Defaults to:
null
Only valid when a component is cfg-floated
The x position at which to position this component. This is usually viewport-relative. But if there is a
relative: true ancestor, it will be relative to that.
Defaults to:
0
The xtype configuration option can be used to optimize Component creation and rendering. It serves as a
shortcut to the full component name. For example, the component Ext.button.Button has an xtype of button.
You can define your own xtype on a custom Ext.Component by specifying the
alias config option with a prefix of widget. For example:
Ext.define('PressMeButton', {
extend: 'Ext.button.Button',
alias: 'widget.pressmebutton',
text: 'Press Me'
});
Any Component can be created implicitly as an object config with an xtype specified, allowing it to be declared and passed into the rendering pipeline without actually being instantiated as an object. Not only is rendering deferred, but the actual creation of the object itself is also deferred, saving memory and resources until they are actually needed. In complex, nested layouts containing many Components, this can make a noticeable improvement in performance.
Defaults to:
"component"
Only valid when a component is cfg-floated
The x position at which to position this component. This is usually viewport-relative. But if there is a
relative: true ancestor, it will be relative to that.
Defaults to:
0
The z-index to give this Component when it is rendered.
Not valid for cfg-floated Components. The Z ordering of cfg-floated Components is managed by ordering of the DOM elements.
Defaults to:
null
The on method is shorthand for addListener.
Appends an event handler to this object. For example:
myGridPanel.on("itemclick", this.onItemClick, this);
The method also allows for a single argument to be passed which is a config object containing properties which specify multiple events. For example:
myGridPanel.on({
cellclick: this.onCellClick,
select: this.onSelect,
viewready: this.onViewReady,
scope: this // Important. Ensure "this" is correct during handler execution
});
One can also specify options for each event handler separately:
myGridPanel.on({
cellclick: {fn: this.onCellClick, scope: this, single: true},
viewready: {fn: panel.onViewReady, scope: panel}
});
Names of methods in a specified scope may also be used:
myGridPanel.on({
cellclick: {fn: 'onCellClick', scope: this, single: true},
viewready: {fn: 'onViewReady', scope: panel}
});
eventName : 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 (optional)
The method the event invokes or the name of
the method within the specified scope. Will be called with arguments
given to Ext.util.Observable#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.
Note: The options object will also be passed as the last argument to every event handler.
This object may contain any of the following properties:
scope : Object
The scope (this reference) in which the handler function is executed. If omitted,
defaults to the object which fired the event.
delay : Number
The number of milliseconds to delay the invocation of the handler after the event fires.
single : Boolean
True to add a handler to handle just the next firing of the event, and then remove itself.
buffer : Number
Causes the handler to be scheduled to run in an Ext.util.DelayedTask 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.
onFrame : Number
Causes the handler to be scheduled to run at the next animation frame event. If the event fires again before that time, the handler is not rescheduled - the handler will only be called once when the next animation frame is fired, with the last set of arguments passed.
target : Ext.util.Observable
Only call the handler if the event was fired on the target Observable, not if the event was bubbled up from a child Observable.
element : String
This option is only valid for listeners bound to Ext.Component. The name of a Component property which references an Ext.dom.Element to add a listener to.
This option is useful during Component construction to add DOM event listeners to elements of Ext.Component which will exist only after the Component is rendered.
For example, to add a click listener to a Panel's body:
var panel = new Ext.panel.Panel({
title: 'The title',
listeners: {
click: this.handlePanelClick,
element: 'body'
}
});
In order to remove listeners attached using the element, you'll need to reference the element itself as seen below.
panel.body.un(...)
delegate : String (optional)
A simple selector to filter the event target or look for a descendant of the target.
The "delegate" option is only available on Ext.dom.Element instances (or when attaching a listener to a Ext.dom.Element via a Component using the element option).
See the delegate example below.
capture : Boolean (optional)
When set to true, the listener is fired in the capture phase of the event propagation
sequence, instead of the default bubble phase.
The capture option is only available on Ext.dom.Element instances (or
when attaching a listener to a Ext.dom.Element via a Component using the
element option).
stopPropagation : Boolean (optional)
This option is only valid for listeners bound to Ext.dom.Element.
true to call stopPropagation on the event object
before firing the handler.
preventDefault : Boolean (optional)
This option is only valid for listeners bound to Ext.dom.Element.
true to call preventDefault on the event object
before firing the handler.
stopEvent : Boolean (optional)
This option is only valid for listeners bound to Ext.dom.Element.
true to call stopEvent on the event object
before firing the handler.
args : Array (optional)
Optional arguments to pass to the handler function. Any additional arguments passed to fireEvent will be appended to these arguments.
destroyable : Boolean (optional)
When specified as true, the function returns a destroyable object. An object
which implements the destroy method which removes all listeners added in this call.
This syntax can be a helpful shortcut to using un; particularly when
removing multiple listeners. NOTE - not compatible when using the element
option. See un for the proper syntax for removing listeners added using the
element config.
Defaults to:
false
priority : Number (optional)
An optional numeric priority that determines the order in which event handlers are run. Event handlers with no priority will be run as if they had a priority of 0. Handlers with a higher priority will be prioritized to run sooner than those with a lower priority. Negative numbers can be used to set a priority lower than the default. Internally, the framework uses a range of 1000 or greater, and -1000 or lesser for handlers that are intended to run before or after all others, so it is recommended to stay within the range of -999 to 999 when setting the priority of event handlers in application-level code. A priority must be an integer to be valid. Fractional values are reserved for internal framework use.
order : String (optional)
A legacy option that is provided for backward compatibility.
It is recommended to use the priority option instead. Available options are:
'before': equal to a priority of 100'current': equal to a priority of 0 or default priority'after': equal to a priority of -100Defaults to:
'current'
order : String (optional)
A shortcut for the order event option. Provided for backward compatibility.
Please use the priority event option instead.
Combining Options
Using the options argument, it is possible to combine different types of listeners:
A delayed, one-time listener.
myPanel.on('hide', this.handleClick, this, {
single: true,
delay: 100
});
Attaching multiple handlers in 1 call
The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers and handler configs.
grid.on({
itemclick: 'onItemClick',
itemcontextmenu: grid.onItemContextmenu,
destroy: {
fn: function () {
// function called within the 'altCmp' scope instead of grid
},
scope: altCmp // unique scope for the destroy handler
},
scope: grid // default scope - provided for example clarity
});
Delegate
This is a configuration option that you can pass along when registering a handler for an event to assist with event delegation. By setting this configuration option to a simple selector, the target element will be filtered to look for a descendant of the target. For example:
var panel = Ext.create({
xtype: 'panel',
renderTo: document.body,
title: 'Delegate Handler Example',
frame: true,
height: 220,
width: 220,
html: '<h1 class="myTitle">BODY TITLE</h1>Body content'
});
// The click handler will only be called when the click occurs on the
// delegate: h1.myTitle ("h1" tag with class "myTitle")
panel.on({
click: function (e) {
console.log(e.getTarget().innerHTML);
},
element: 'body',
delegate: 'h1.myTitle'
});
Defaults to: 'current'
Only when the destroyable option is specified.
A Destroyable object. An object which implements the destroy method which removes
all listeners added in this call. For example:
this.btnListeners = = myButton.on({
destroyable: true
mouseover: function() { console.log('mouseover'); },
mouseout: function() { console.log('mouseout'); },
click: function() { console.log('click'); }
});
And when those listeners need to be removed:
Ext.destroy(this.btnListeners);
or
this.btnListeners.destroy();
The addManagedListener method is used when some object (call it "A") is listening to an event on another observable object ("B") and you want to remove that listener from "B" when "A" is destroyed. This is not an issue when "B" is destroyed because all of its listeners will be removed at that time.
Example:
Ext.define('Foo', {
extend: 'Ext.Component',
initComponent: function () {
this.addManagedListener(MyApp.SomeGlobalSharedMenu, 'show', this.doSomething);
this.callParent();
}
});
As you can see, when an instance of Foo is destroyed, it ensures that the 'show'
listener on the menu (MyApp.SomeGlobalSharedMenu) is also removed.
As of version 5.1 it is no longer necessary to use this method in most cases because
listeners are automatically managed if the scope object provided to
addListener is an Observable instance.
However, if the observable instance and scope are not the same object you
still need to use mon or addManagedListener if you want the listener to be
managed.
item : Ext.util.Observable/Ext.dom.Element
The item to which to add a listener/listeners.
ename : Object/String
The event name, or an object containing event name properties.
fn : Function/String (optional)
If the ename parameter was an event
name, this is the handler function or the name of a method on the specified
scope.
scope : Object (optional)
If the ename parameter was an event name, this is the scope (this reference)
in which the handler function is executed.
options : Object (optional)
If the ename parameter was an event name, this is the
addListener options.
Only when the destroyable option is specified.
A Destroyable object. An object which implements the destroy method which removes all listeners added in this call. For example:
this.btnListeners = myButton.mon({
destroyable: true
mouseover: function() { console.log('mouseover'); },
mouseout: function() { console.log('mouseout'); },
click: function() { console.log('click'); }
});
And when those listeners need to be removed:
Ext.destroy(this.btnListeners);
or
this.btnListeners.destroy();
Adds a plugin. For example:
list.addPlugin('pullrefresh');
Or:
list.addPlugin({
type: 'pullrefresh',
pullRefreshText: 'Pull to refresh...'
});
Available since: 6.2.0
plugin : Object/String/Ext.plugin.Abstract
The plugin or config object or alias to add.
Retrieves the first direct child of this container which matches the passed selector or component. The passed in selector must comply with an Ext.ComponentQuery selector, or it can be an actual Ext.Component.
selector : String/Ext.Component (optional)
An Ext.ComponentQuery selector. If no selector is specified, the first child will be returned.
The matching child Ext.Component (or null if no match was found).
Removes and destroys a plugin.
Note: Not all plugins are designed to be removable. Consult the documentation for the specific plugin in question to be sure.
Available since: 6.2.0
plugin : String/Ext.plugin.Abstract
The plugin or its id to remove.
plugin instance or null if not found.
Retrieves the first descendant of this container which matches the passed selector. The passed in selector must comply with an Ext.ComponentQuery selector, or it can be an actual Ext.Component.
selector : String/Ext.Component (optional)
An Ext.ComponentQuery selector or Ext.Component. If no selector is specified, the first child will be returned.
The matching descendant Ext.Component (or null if no match was found).
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.
This is commonly used by Ext.Components to bubble events to owner Containers. See Ext.Component#getBubbleTarget. The default implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to access the required target more quickly.
Example:
Ext.define('Ext.overrides.form.field.Base', {
override: 'Ext.form.field.Base',
// Add functionality to Field's initComponent to enable the change event to bubble
initComponent: function () {
this.callParent();
this.enableBubble('change');
}
});
var myForm = Ext.create('Ext.form.Panel', {
title: 'User Details',
items: [{
...
}],
listeners: {
change: function() {
// Title goes red if form has been modified.
myForm.header.setStyle('color', 'red');
}
}
});
eventNames : String/String[]
The event name to bubble, or an Array of event names.
Scrolls the specified record into view.
record : Number/Ext.data.Model (optional)
The record or the 0-based position
to which to scroll. If this parameter is not passed, the options argument must
be passed and contain either record or recordIndex.
options : Object (optional)
An object containing options to modify the operation.
animation : Boolean (optional)
Pass true to animate the row into view.
focus : Boolean (optional)
Pass as true to focus the specified row.
highlight : Boolean (optional)
Pass true to highlight the row with a glow
animation when it is in view.
record : Ext.data.Model (optional)
The record to which to scroll.
recordIndex : Number (optional)
The 0-based position to which to scroll.
select : Boolean (optional)
Pass as true to select the specified row.
Retrieves plugin by its type alias. For example:
var list = Ext.create({
xtype: 'list',
itemTpl: '<div class="item">{title}</div>',
store: 'Items',
plugins: ['listpaging', 'pullrefresh']
});
list.findPlugin('pullrefresh').setPullRefreshText('Pull to refresh...');
Note: See also getPlugin.
Available since: 6.2.0
type : String
The Plugin's type as specified by the class's
alias configuration.
plugin instance or null if not found.
Fires the specified event with the passed parameters (minus the event name, plus the options object passed
to addListener).
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...
Variable number of parameters are passed to handlers.
returns false if any of the handlers return false otherwise it returns true.
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.
Fires the specified event with the passed parameters and executes a function (action). Evented Actions will automatically dispatch a 'before' event passing. This event will be given a special controller that allows for pausing/resuming of the event flow.
By pausing the controller the updater and events will not run until resumed. Pausing, however, will not stop the processing of any other before events.
eventName : String
The name of the event to fire.
args : Array
Arguments to pass to handlers and to the action function.
fn : Function/String
The action function.
scope : Object (optional)
The scope (this reference) in which the handler function is
executed. If omitted, defaults to the object which fired the event.
fnArgs : Array/Boolean (optional)
Optional arguments for the action fn. If not
given, the normal args will be used to call fn. If false is passed, the
args are used but if the first argument is this instance it will be removed
from the args passed to the action function.
Try to focus this component.
If this component is disabled or otherwise not focusable, a close relation will be targeted for focus instead to keep focus localized for keyboard users.
selectText : Boolean/Number[] (optional)
If applicable, true to also select all the text
in this component, or an array consisting of start and end (defaults to start)
position of selection.
true if focus target was found and focusing was attempted,
false if no focusing attempt was made.
Retrieves the id of this component. Will autogenerate an id if one has not already been set.
id
This method returns an object containing the inherited properties for this instance.
Available since: 5.0.0
inner : Boolean (optional)
Pass true to return inheritedStateInner instead
of the normal inheritedState object. This is only needed internally and should
not be passed by user code.
Defaults to: false
The inheritedState object containing inherited properties.
This method returns the value of a config property that may be inherited from some ancestor.
In some cases, a config may be explicitly set on a component with the intent of
only being presented to its children while that component should act upon the
inherited value (see referenceHolder for example). In these cases the skipThis
parameter should be specified as true.
Available since: 5.0.0
property : String
The name of the config property to return.
skipThis : Boolean (optional)
Pass true if the property should be ignored if
found on this instance. In other words, true means the property must be inherited
and not explicitly set on this instance.
Defaults to: false
The value of the requested property.
Gets a list item by record.
record : Ext.data.Model
The record
The list item, if found.
null if no matching item exists.
Returns an item at the specified index.
index : Number
Index of the item.
item Item at the specified index.
Returns an index for the specified item.
item : Number
The item to locate.
Index for the specified item.
Returns an object holding the descendants of this container keyed by their
name. This object should not be held past the scope of the function calling this
method. It will not be valid if items are added or removed from this or any
sub-container.
The intended usage is shown here (assume there are 3 components with names of "foo", "bar" and "baz" at some level below this container):
onClick: function () {
var items = this.getNamedItems();
// using "items" we can access any descendant by its "name"
items.foo.getValue() + items.bar.getValue() + items.baz.getValue();
}
If this component has a name assigned to it, it is not included in this
object. That name is understood to belong to the ancestor container configured
as the nameHolder.
Available since: 6.5.0
An object with each named child. This will be null if this
container has no descendants with a name specified.
Retrieves a plugin by its id.
var list = Ext.create({
xtype: 'list',
itemTpl: '<div class="item">{title}</div>',
store: 'Items',
plugins: {
xclass: 'Ext.plugin.PullRefresh',
id: 'foo'
}
});
list.getPlugin('foo').setPullRefreshText('Pull to refresh...');
Note: See also findPlugin.
Available since: 6.2.0
id : String
The id of the plugin.
plugin instance or null if not found.
Returns an object holding the descendants of this view keyed by their
reference. This object should not be held
past the scope of the function calling this method. It will not be valid if items
are added or removed from this or any sub-container.
The intended usage is shown here (assume there are 3 components with reference values of "foo", "bar" and "baz" at some level below this container):
onClick: function () {
var refs = this.getReferences();
// using "refs" we can access any descendant by its "reference"
refs.foo.getValue() + refs.bar.getValue() + refs.baz.getValue();
}
If this component has a reference assigned
to it, that is not included in this object. That reference is understood to
belong to the ancestor container configured as the referenceHolder.
Available since: 5.0.0
An object with each child reference. This will be null if this
container has no descendants with a reference
specified.
Returns all the items that are docked in the scroller in this list.
An array of the scrollDock items
Return the actual tabIndex for this Focusable.
tabIndex attribute value
Returns an array of the current items in the DataView.
Array of Items.
Checks to see if this object has any listeners for a specified event, or whether the event bubbles. The answer indicates whether the event needs firing or not.
eventName : String
The name of the event to check for
true if the event is being listened for or bubbles, else false
Determines whether this Component is an ancestor of the passed Component.
This will return true if the passed Component is anywhere within the subtree
beneath this Component.
possibleDescendant : Ext.Component
The Component to test for presence within this Component's subtree.
Determines whether this component is the descendant of a passed component.
ancestor : Ext.Component
A Component which may contain this Component.
true if the component is the descendant of the passed component,
otherwise false.
Determine if this Focusable can receive focus at this time.
Note that Containers can be non-focusable themselves while delegating focus treatment to a child Component; see Container for more information.
deep : Boolean (optional)
Optionally determine if the container itself is focusable, or if container's focus is delegated to a child component and that child is focusable.
Defaults to: false
True if component is focusable, false if not.
Checks if all events, or a specific event, is suspended.
event : String (optional)
The name of the specific event to check
true if events are suspended
Gets a reference to the component with the specified reference value.
The method is a short-hand for the lookupReference method.
Available since: 6.0.1
ref : String
The value of the reference to lookup.
The referenced component or null if it is not found.
Gets a reference to the component with the specified name property.
Available since: 6.5.0
name : String
The name of the descendant to lookup.
The component or null if it is not found.
Gets a reference to the component with the specified reference value.
The lookup method is a short-hand version of this method.
Available since: 5.0
ref : String
The name of the reference to lookup.
The referenced component or null if it is not found.
Converts the given indexOrRecord to an "item".
An "item" can be either an Ext.dom.Element or an Ext.Component depending on the
type of dataview. For convenience the as parameter can be used to convert the
returned item to a common type such as Ext.dom.Element or HTMLElement.
Be aware that the Ext.List subclass can optionally render only some records, in
which case not all records will have an associated item in the view and this method
will return null.
An index value is a view index. These will only match the record's index in the
store when no extra items are added to this dataview (so called "non-record"
items). These are often unaligned in Ext.List due to group headers as well as
infinite mode where not all records are rendered into the view at one time.
Negative index values are treated as relative to the end such that -1 is the last
item, -2 is the next-to-last and so on.
For example:
// Add "foo" class to the last item in the view
view.mapToItem(-1, 'el').addCls('foo');
// Add "foo" class to the last data item in the view
view.mapToItem(view.getStore().last(), 'el').addCls('foo');
To handle a record's index in the store:
item = view.mapToItem(view.mapToViewIndex(storeIndex));
Available since: 6.5.0
value : Number/Ext.data.Model/Ext.event.Event
The event, view index or Ext.data.Model.
as : "dom"/"el" (optional)
Pass "dom" to always return an HTMLElement for the item.
For component dataviews this is the component's main element. Pass "el" to return
the Ext.dom.Element form of the item. For component dataviews this will be the
component's main element. For other dataviews the returned instance is produced by
Ext.fly() and should not be retained.
Converts the given parameter to a Ext.data.Model. Not all items
in a dataview correspond to records (such as group headers in Ext.List). In these
cases null is returned.
An "item" can be simply an element or a component depending on the type of dataview.
An index value is a view index. These will only match the record's index in the
store when no extra items are added to this dataview (so called "non-record"
items). These are often unaligned in Ext.List due to group headers as well as
infinite mode where not all records are rendered into the view at one time.
Negative index values are treated as relative to the end such that -1 is the last
item, -2 is the next-to-last and so on.
Available since: 6.5.0
value : Ext.event.Event/Number/HTMLElement/Ext.dom.Element/Ext.Component
The associated record or null if there is none.
Converts the given parameter to the record's index in the store. Not all items
in a dataview correspond to records (such as group headers in Ext.List). In these
cases -1 is returned.
An "item" can be simply an element or a component depending on the type of dataview.
An input index value is a view index. These will only match the record's index in
the store when no extra items are added to this dataview (so called "non-record"
items). These are often unaligned in Ext.List due to group headers as well as
infinite mode where not all records are rendered into the view at one time.
Negative index values are treated as relative to the end such that -1 is the last
item, -2 is the next-to-last and so on.
Available since: 6.5.0
value : Ext.event.Event/Number/HTMLElement/Ext.dom.Element/Ext.Component/Ext.data.Model
The record's index in the store or -1 if not found.
Converts the given parameter to the equivalent record index in the store.
In this method alone, the index parameter is a store index not a view index.
Be aware that the Ext.List subclass can optionally render only some records, in
which case not all records will have an associated item in the view and this method
will return -1.
Negative index values are treated as relative to the end such that -1 is the last
record, -2 is the next-to-last and so on.
An "item" can be simply an element or a component depending on the type of dataview.
The view index will only match the record's index in the store when no extra
items are added to this dataview (so called "non-record" items). These are often
unaligned in Ext.List due to group headers as well as infinite mode where not
all records are rendered into the view at one time.
Available since: 6.5.0
value : Ext.event.Event/Number/HTMLElement/Ext.dom.Element/Ext.Component/Ext.data.Model
The view index or -1 if not found.
Shorthand for addManagedListener. The addManagedListener method is used when some object (call it "A") is listening to an event on another observable object ("B") and you want to remove that listener from "B" when "A" is destroyed. This is not an issue when "B" is destroyed because all of its listeners will be removed at that time.
Example:
Ext.define('Foo', {
extend: 'Ext.Component',
initComponent: function () {
this.addManagedListener(MyApp.SomeGlobalSharedMenu, 'show', this.doSomething);
this.callParent();
}
});
As you can see, when an instance of Foo is destroyed, it ensures that the 'show'
listener on the menu (MyApp.SomeGlobalSharedMenu) is also removed.
As of version 5.1 it is no longer necessary to use this method in most cases because
listeners are automatically managed if the scope object provided to
addListener is an Observable instance.
However, if the observable instance and scope are not the same object you
still need to use mon or addManagedListener if you want the listener to be
managed.
item : Ext.util.Observable/Ext.dom.Element
The item to which to add a listener/listeners.
ename : Object/String
The event name, or an object containing event name properties.
fn : Function/String (optional)
If the ename parameter was an event
name, this is the handler function or the name of a method on the specified
scope.
scope : Object (optional)
If the ename parameter was an event name, this is the scope (this reference)
in which the handler function is executed.
options : Object (optional)
If the ename parameter was an event name, this is the
addListener options.
Only when the destroyable option is specified.
A Destroyable object. An object which implements the destroy method which removes all listeners added in this call. For example:
this.btnListeners = myButton.mon({
destroyable: true
mouseover: function() { console.log('mouseover'); },
mouseout: function() { console.log('mouseout'); },
click: function() { console.log('click'); }
});
And when those listeners need to be removed:
Ext.destroy(this.btnListeners);
or
this.btnListeners.destroy();
Shorthand for removeManagedListener. Removes listeners that were added by the mon method.
item : Ext.util.Observable/Ext.dom.Element
The item from which to remove a listener/listeners.
ename : Object/String
The event name, or an object containing event name properties.
fn : Function (optional)
If the ename parameter was an event name, this is the handler function.
scope : Object (optional)
If the ename parameter was an event name, this is the scope (this reference)
in which the handler function is executed.
Returns the item following the passed item in the view. For infinite lists, this
traversal can encounter unrendered records. In this case, the record index of the
unrendered record is returned.
If as is specified, the item is converted to the desired form, if possible. If
that conversion cannot be performed, null is returned.
item : Ext.dom.Element/Ext.Component
The item from which to navigate.
as : "cmp"/"dom"/"el" (optional)
Pass "dom" to always return an HTMLElement for
the item. For component dataviews this is the component's main element. Pass "el"
to return the Ext.dom.Element form of the item. For component dataviews this will
be the component's main element. For other dataviews the returned instance is
produced by Ext.fly() and should not be retained. Pass "cmp" to
return the Ext.Component reference for the item (if one exists).
The on method is shorthand for addListener.
Appends an event handler to this object. For example:
myGridPanel.on("itemclick", this.onItemClick, this);
The method also allows for a single argument to be passed which is a config object containing properties which specify multiple events. For example:
myGridPanel.on({
cellclick: this.onCellClick,
select: this.onSelect,
viewready: this.onViewReady,
scope: this // Important. Ensure "this" is correct during handler execution
});
One can also specify options for each event handler separately:
myGridPanel.on({
cellclick: {fn: this.onCellClick, scope: this, single: true},
viewready: {fn: panel.onViewReady, scope: panel}
});
Names of methods in a specified scope may also be used:
myGridPanel.on({
cellclick: {fn: 'onCellClick', scope: this, single: true},
viewready: {fn: 'onViewReady', scope: panel}
});
eventName : 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 (optional)
The method the event invokes or the name of
the method within the specified scope. Will be called with arguments
given to Ext.util.Observable#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.
Note: The options object will also be passed as the last argument to every event handler.
This object may contain any of the following properties:
scope : Object
The scope (this reference) in which the handler function is executed. If omitted,
defaults to the object which fired the event.
delay : Number
The number of milliseconds to delay the invocation of the handler after the event fires.
single : Boolean
True to add a handler to handle just the next firing of the event, and then remove itself.
buffer : Number
Causes the handler to be scheduled to run in an Ext.util.DelayedTask 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.
onFrame : Number
Causes the handler to be scheduled to run at the next animation frame event. If the event fires again before that time, the handler is not rescheduled - the handler will only be called once when the next animation frame is fired, with the last set of arguments passed.
target : Ext.util.Observable
Only call the handler if the event was fired on the target Observable, not if the event was bubbled up from a child Observable.
element : String
This option is only valid for listeners bound to Ext.Component. The name of a Component property which references an Ext.dom.Element to add a listener to.
This option is useful during Component construction to add DOM event listeners to elements of Ext.Component which will exist only after the Component is rendered.
For example, to add a click listener to a Panel's body:
var panel = new Ext.panel.Panel({
title: 'The title',
listeners: {
click: this.handlePanelClick,
element: 'body'
}
});
In order to remove listeners attached using the element, you'll need to reference the element itself as seen below.
panel.body.un(...)
delegate : String (optional)
A simple selector to filter the event target or look for a descendant of the target.
The "delegate" option is only available on Ext.dom.Element instances (or when attaching a listener to a Ext.dom.Element via a Component using the element option).
See the delegate example below.
capture : Boolean (optional)
When set to true, the listener is fired in the capture phase of the event propagation
sequence, instead of the default bubble phase.
The capture option is only available on Ext.dom.Element instances (or
when attaching a listener to a Ext.dom.Element via a Component using the
element option).
stopPropagation : Boolean (optional)
This option is only valid for listeners bound to Ext.dom.Element.
true to call stopPropagation on the event object
before firing the handler.
preventDefault : Boolean (optional)
This option is only valid for listeners bound to Ext.dom.Element.
true to call preventDefault on the event object
before firing the handler.
stopEvent : Boolean (optional)
This option is only valid for listeners bound to Ext.dom.Element.
true to call stopEvent on the event object
before firing the handler.
args : Array (optional)
Optional arguments to pass to the handler function. Any additional arguments passed to fireEvent will be appended to these arguments.
destroyable : Boolean (optional)
When specified as true, the function returns a destroyable object. An object
which implements the destroy method which removes all listeners added in this call.
This syntax can be a helpful shortcut to using un; particularly when
removing multiple listeners. NOTE - not compatible when using the element
option. See un for the proper syntax for removing listeners added using the
element config.
Defaults to:
false
priority : Number (optional)
An optional numeric priority that determines the order in which event handlers are run. Event handlers with no priority will be run as if they had a priority of 0. Handlers with a higher priority will be prioritized to run sooner than those with a lower priority. Negative numbers can be used to set a priority lower than the default. Internally, the framework uses a range of 1000 or greater, and -1000 or lesser for handlers that are intended to run before or after all others, so it is recommended to stay within the range of -999 to 999 when setting the priority of event handlers in application-level code. A priority must be an integer to be valid. Fractional values are reserved for internal framework use.
order : String (optional)
A legacy option that is provided for backward compatibility.
It is recommended to use the priority option instead. Available options are:
'before': equal to a priority of 100'current': equal to a priority of 0 or default priority'after': equal to a priority of -100Defaults to:
'current'
order : String (optional)
A shortcut for the order event option. Provided for backward compatibility.
Please use the priority event option instead.
Combining Options
Using the options argument, it is possible to combine different types of listeners:
A delayed, one-time listener.
myPanel.on('hide', this.handleClick, this, {
single: true,
delay: 100
});
Attaching multiple handlers in 1 call
The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers and handler configs.
grid.on({
itemclick: 'onItemClick',
itemcontextmenu: grid.onItemContextmenu,
destroy: {
fn: function () {
// function called within the 'altCmp' scope instead of grid
},
scope: altCmp // unique scope for the destroy handler
},
scope: grid // default scope - provided for example clarity
});
Delegate
This is a configuration option that you can pass along when registering a handler for an event to assist with event delegation. By setting this configuration option to a simple selector, the target element will be filtered to look for a descendant of the target. For example:
var panel = Ext.create({
xtype: 'panel',
renderTo: document.body,
title: 'Delegate Handler Example',
frame: true,
height: 220,
width: 220,
html: '<h1 class="myTitle">BODY TITLE</h1>Body content'
});
// The click handler will only be called when the click occurs on the
// delegate: h1.myTitle ("h1" tag with class "myTitle")
panel.on({
click: function (e) {
console.log(e.getTarget().innerHTML);
},
element: 'body',
delegate: 'h1.myTitle'
});
Defaults to: 'current'
Only when the destroyable option is specified.
A Destroyable object. An object which implements the destroy method which removes
all listeners added in this call. For example:
this.btnListeners = = myButton.on({
destroyable: true
mouseover: function() { console.log('mouseover'); },
mouseout: function() { console.log('mouseout'); },
click: function() { console.log('click'); }
});
And when those listeners need to be removed:
Ext.destroy(this.btnListeners);
or
this.btnListeners.destroy();
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.
Function which can be overridden to provide custom formatting for each Record that is used by this DataView's template to render each node.
data : Object/Object[]
The raw data object that was used to create the Record.
index : Number
the index number of the Record being prepared for rendering.
record : Ext.data.Model
The Record being prepared for rendering.
The formatted data in a format expected by the internal
template's overwrite() method.
(either an array if your params are numeric (i.e. {0}) or an object (i.e. {foo: 'bar'}))
Returns the item preceding the passed item in the view. For infinite lists, this
traversal can encounter unrendered records. In this case, the record index of the
unrendered record is returned.
If as is specified, the item is converted to the desired form, if possible. If
that conversion cannot be performed, null is returned.
item : Ext.dom.Element/Ext.Component
The item from which to navigate.
as : "cmp"/"dom"/"el" (optional)
Pass "dom" to always return an HTMLElement for
the item. For component dataviews this is the component's main element. Pass "el"
to return the Ext.dom.Element form of the item. For component dataviews this will
be the component's main element. For other dataviews the returned instance is
produced by Ext.fly() and should not be retained. Pass "cmp" to
return the Ext.Component reference for the item (if one exists).
Retrieves all descendant components which match the passed selector. Executes an Ext.ComponentQuery.query using this container as its root.
selector : String (optional)
Selector complying to an Ext.ComponentQuery selector. If no selector is specified all items will be returned.
Components which matched the selector
Retrieves all descendant components which match the passed function. The function should return false for components that are to be excluded from the selection.
fn : Function
The matcher function. It will be called with a single argument, the component being tested.
scope : Object (optional)
The scope in which to run the function. If not specified, it will default to the active component.
Components matched by the passed function
Finds a component at any level under this container matching the id/itemId. This is a shorthand for calling ct.down('#' + id);
id : String
The id to find
The matching id, null if not found
Relays selected events from the specified Observable as if the events were fired by this.
For example if you are extending Grid, you might decide to forward some events from store. So you can do this inside your initComponent:
this.relayEvents(this.getStore(), ['load']);
The grid instance will then have an observable 'load' event which will be passed the parameters of the store's load event and any function fired with the grid's load event would have access to the grid using the this keyword (unless the event is handled by a controller's control/listen event listener in which case 'this' will be the controller rather than the grid).
origin : Object
The Observable whose events this object is to relay.
events : String[]/Object
Array of event names to relay or an Object with key/value pairs translating to ActualEventName/NewEventName respectively. For example: this.relayEvents(this, {add:'push', remove:'pop'});
Would now redispatch the add event of this as a push event and the remove event as a pop event.
prefix : String (optional)
A common prefix to prepend to the event names. For example:
this.relayEvents(this.getStore(), ['load', 'clear'], 'store');
Now the grid will forward 'load' and 'clear' events of store as 'storeload' and 'storeclear'.
A Destroyable object. An object which implements the destroy method which, when destroyed, removes all relayers. For example:
this.storeRelayers = this.relayEvents(this.getStore(), ['load', 'clear'], 'store');
Can be undone by calling
Ext.destroy(this.storeRelayers);
or this.store.relayers.destroy();
Removes an event handler.
eventName : String
The type of event the handler was associated with.
fn : Function
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 Ext.util.Observable#addListener or the listener will not be removed.
Convenience Syntax
You can use the addListener
destroyable: true config option in place of calling un(). For example:
var listeners = cmp.on({
scope: cmp,
afterrender: cmp.onAfterrender,
beforehide: cmp.onBeforeHide,
destroyable: true
});
// Remove listeners
listeners.destroy();
// or
cmp.un(
scope: cmp,
afterrender: cmp.onAfterrender,
beforehide: cmp.onBeforeHide
);
Exception - DOM event handlers using the element config option
You must go directly through the element to detach an event handler attached using the addListener element option.
panel.on({
element: 'body',
click: 'onBodyCLick'
});
panel.body.un({
click: 'onBodyCLick'
});
Removes listeners that were added by the mon method.
item : Ext.util.Observable/Ext.dom.Element
The item from which to remove a listener/listeners.
ename : Object/String
The event name, or an object containing event name properties.
fn : Function (optional)
If the ename parameter was an event name, this is the handler function.
scope : Object (optional)
If the ename parameter was an event name, this is the scope (this reference)
in which the handler function is executed.
Removes and (optionally) destroys a plugin.
Note: Not all plugins are designed to be removable. Consult the documentation for the specific plugin in question to be sure.
Available since: 6.2.0
plugin : String/Ext.plugin.Abstract
The plugin or its id to remove.
destroy : Boolean (optional)
Pass true to not call destroy() on the plugin.
plugin instance or null if not found.
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).
If events were suspended using the queueSuspended parameter, then all events fired
during event suspension will be sent to any listeners now.
discardQueue : Boolean (optional)
true to prevent any previously queued events from firing
while we were suspended. See suspendEvents.
Scrolls the list so that the specified record is at the top. <-- NO. Scroll into view. === TODO: fix scrollTo API
record : Ext.data.Model
Record in the store to scroll to.
animate : Boolean (optional)
Determines if scrolling is animated.
Defaults to: false
overscroll : Boolean (optional)
Determines if list can be overscrolled.
Defaults to: true
An alias for addListener. In versions prior to 5.1, listeners had a generated setter which could be called to add listeners. In 5.1 the listeners config is not processed using the config system and has no generated setter, so this method is provided for backward compatibility. The preferred way of adding listeners is to use the on method.
listeners : Object
The listeners
Returns the value of preventSelectionOnDisclose
Set the tabIndex property for this Focusable. If the focusEl is available, set tabIndex attribute on it, too.
newTabIndex : Number
new tabIndex to set
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.
Shorthand for removeListener. Removes an event handler.
eventName : String
The type of event the handler was associated with.
fn : Function
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 Ext.util.Observable#addListener or the listener will not be removed.
Convenience Syntax
You can use the addListener
destroyable: true config option in place of calling un(). For example:
var listeners = cmp.on({
scope: cmp,
afterrender: cmp.onAfterrender,
beforehide: cmp.onBeforeHide,
destroyable: true
});
// Remove listeners
listeners.destroy();
// or
cmp.un(
scope: cmp,
afterrender: cmp.onAfterrender,
beforehide: cmp.onBeforeHide
);
Exception - DOM event handlers using the element config option
You must go directly through the element to detach an event handler attached using the addListener element option.
panel.on({
element: 'body',
click: 'onBodyCLick'
});
panel.body.un({
click: 'onBodyCLick'
});
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 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.
Walks up the ownership hierarchy looking for an ancestor Component which matches the passed simple selector.
Example:
var owningTabPanel = grid.up('tabpanel');
selector : String (optional)
The simple selector to test.
limit : String/Number/Ext.Component (optional)
This may be a selector upon which to stop the upward scan, or a limit of the number of steps, or Component reference to stop on.
The matching ancestor Container (or undefined if no match was found).
Traverses the tree rooted at this node in post-order mode, calling the passed function on the nodes at each level. That is the function is called upon each node after being called on its children).
This method is used at each level down the cascade. Currently Ext.Components and Ext.data.TreeModels are queryable.
If you have tree-structured data, you can make your nodes queryable, and use ComponentQuery on them.
selector : Object
A ComponentQuery selector used to filter candidate nodes before calling the function. An empty string matches any node.
fn : Function
The function to call. Return false to aborl the traverse.
node : Object
The node being visited.
scope : Object (optional)
The context (this reference) in which the function is executed.
extraArgs : Array (optional)
A set of arguments to be appended to the function's argument list to pass down extra data known to the caller after the node being visited.
Traverses the tree rooted at this node in pre-order mode, calling the passed function on the nodes at each level. That is the function is called upon each node before being called on its children).
This method is used at each level down the cascade. Currently Ext.Components and Ext.data.TreeModels are queryable.
If you have tree-structured data, you can make your nodes queryable, and use ComponentQuery on them.
selector : Object
A ComponentQuery selector used to filter candidate nodes before calling the function. An empty string matches any node.
fn : Function
The function to call. Return false to aborl the traverse.
node : Object
The node being visited.
scope : Object (optional)
The context (this reference) in which the function is executed.
extraArgs : Array (optional)
A set of arguments to be appended to the function's argument list to pass down extra data known to the caller after the node being visited.
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
Fires whenever item within the Container is activated.
newActiveItem : Object
The new active item within the container.
this : Ext.Container
The Container instance.
oldActiveItem : Object
The old active item within the container.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when activeItem changes.
sender : Ext.Container
The instance firing this event.
value : Object/String/Number
The current value of activeItem.
oldValue : Object/String/Number
The previous value of activeItem.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires after a Component had been added to a Container.
this : Ext.Component
container : Ext.Container
Parent Container
index : Number
The index of the item within the Container.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when activeItem changes.
sender : Ext.Container
The instance firing this event.
value : Object/String/Number
The current value of activeItem.
oldValue : Object/String/Number
The previous value of activeItem.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when bottom changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of bottom.
oldValue : Number/String
The previous value of bottom.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when centered changes.
sender : Ext.Component
The instance firing this event.
value : Boolean
The current value of centered.
oldValue : Boolean
The previous value of centered.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when disabled changes.
sender : Ext.Widget
The instance firing this event.
value : Boolean
The current value of disabled.
oldValue : Boolean
The previous value of disabled.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when docked changes.
sender : Ext.Component
The instance firing this event.
value : String
The current value of docked.
oldValue : String
The previous value of docked.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when flex changes.
sender : Ext.Widget
The instance firing this event.
value : Number/String/Object
The current value of flex.
oldValue : Number/String/Object
The previous value of flex.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when height changes.
sender : Ext.Widget
The instance firing this event.
value : Number/String
The current value of height.
oldValue : Number/String
The previous value of height.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when hidden changes.
sender : Ext.Widget
The instance firing this event.
value : Boolean
The current value of hidden.
oldValue : Boolean
The previous value of hidden.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
Fires before the Component is hidden. Hide may be vetoed by returning false from a handler.
this : Ext.Component
The component instance
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when left changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of left.
oldValue : Number/String
The previous value of left.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when maxHeight changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of maxHeight.
oldValue : Number/String
The previous value of maxHeight.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when maxWidth changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of maxWidth.
oldValue : Number/String
The previous value of maxWidth.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when minHeight changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of minHeight.
oldValue : Number/String
The previous value of minHeight.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when minWidth changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of minWidth.
oldValue : Number/String
The previous value of minWidth.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when right changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of right.
oldValue : Number/String
The previous value of right.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when scrollable changes.
sender : Ext.Component
The instance firing this event.
value : Boolean/String/Object
The current value of scrollable.
oldValue : Boolean/String/Object
The previous value of scrollable.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
Fires before the Component is shown. Show may be vetoed by returning false from a handler.
this : Ext.Component
The component instance
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when top changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of top.
oldValue : Number/String
The previous value of top.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
This event fires when width changes.
sender : Ext.Widget
The instance firing this event.
value : Number/String
The current value of width.
oldValue : Number/String
The previous value of width.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Return false to cancel the change.
Fires when this Component's focusEl loses focus.
this : Ext.Component
event : Ext.event.Event
The blur event.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when bottom changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of bottom.
oldValue : Number/String
The previous value of bottom.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when centered changes.
sender : Ext.Component
The instance firing this event.
value : Boolean
The current value of centered.
oldValue : Boolean
The previous value of centered.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever item within the Container is deactivated.
oldActiveItem : Object
The old active item within the container.
this : Ext.Container
The Container instance.
newActiveItem : Object
The new active item within the container.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever an item is deselected
this : Ext.dataview.DataView
records : Ext.data.Model[]
The records being deselected
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when disabled changes.
sender : Ext.Widget
The instance firing this event.
value : Boolean
The current value of disabled.
oldValue : Boolean
The previous value of disabled.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever a disclosure is handled
this : Ext.dataview.List
The List instance
record : Ext.data.Model
The record associated to the item
target : HTMLElement
The element disclosed
index : Number
The index of the item disclosed
e : Ext.EventObject
The event object
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This action following this event is preventable. When any of the listeners returns false, the action is cancelled.
This event fires when docked changes.
sender : Ext.Component
The instance firing this event.
value : String
The current value of docked.
oldValue : String
The previous value of docked.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when the component is no longer displayed in the DOM. Listening to this event will degrade performance not recommend for general use.
this : Ext.Component
The component instance
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when flex changes.
sender : Ext.Widget
The instance firing this event.
value : Number/String/Object
The current value of flex.
oldValue : Number/String/Object
The previous value of flex.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when this Component's focusEl receives focus.
this : Ext.Component/Ext.Widget
event : Ext.event.Event
The focus event.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when focus enters this Component's hierarchy.
this : Ext.Component
event : Ext.event.Event
The focusenter event.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when focus leaves this Component's hierarchy.
this : Ext.Component
event : Ext.event.Event
The focusleave event.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever a Component with the fullscreen config is instantiated
this : Ext.Component
The component instance
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when height changes.
sender : Ext.Widget
The instance firing this event.
value : Number/String
The current value of height.
oldValue : Number/String
The previous value of height.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when hidden changes.
sender : Ext.Widget
The instance firing this event.
value : Boolean
The current value of hidden.
oldValue : Boolean
The previous value of hidden.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever the Component is hidden
this : Ext.Component
The component instance
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when the component has been initialized
this : Ext.Component
The component instance
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever a swipe action has been triggered from a list item.
this : Ext.dataview.List
index : Number
The index of the swipped item.
record : Ext.data.Model
The record associated to the item.
action : String
The triggered action key.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when left changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of left.
oldValue : Number/String
The previous value of left.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when maxHeight changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of maxHeight.
oldValue : Number/String
The previous value of maxHeight.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when maxWidth changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of maxWidth.
oldValue : Number/String
The previous value of maxWidth.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when minHeight changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of minHeight.
oldValue : Number/String
The previous value of minHeight.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when minWidth changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of minWidth.
oldValue : Number/String
The previous value of minWidth.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires when a component si moved within its Container.
this : Ext.Component
container : Ext.Container
Container which holds the component
toIndex : Number
The new index of the item.
fromIndex : Number
The old index of the item.
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.
element : Ext.dom.Element
The component's outer element (this.element)
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever there is a change in the positioned status of a component
this : Ext.Component
The component instance
positioned : Boolean
The component's new positioned state. This becomes
true is a component is positioned using the cfg-top, cfg-right,
cfg-bottom or cfg-left configs.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever the DataView is refreshed
this : Ext.dataview.DataView
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This action following this event is preventable. When any of the listeners returns false, the action is cancelled.
Fires when a component is removed from a Container
this : Ext.Component
container : Ext.Container
Container which holds the component
index : Number
The index of the item that was removed.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires asynchronously after a browser layout caused by a component resize. This may be triggered for any or several of the following reasons:
component : Ext.Component
This Component.
width : String/Number
The new width.
height : String/Number
The new height.
oldWidth : String/Number
The previous width.
oldHeight : String/Number
The previous height.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when right changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of right.
oldValue : Number/String
The previous value of right.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when scrollable changes.
sender : Ext.Component
The instance firing this event.
value : Boolean/String/Object
The current value of scrollable.
oldValue : Boolean/String/Object
The previous value of scrollable.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever an item is selected
this : Ext.dataview.DataView
records : Ext.data.Model[]
The records being selected
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Fires whenever the Component is shown
this : Ext.Component
The component instance
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when top changes.
sender : Ext.Component
The instance firing this event.
value : Number/String
The current value of top.
oldValue : Number/String
The previous value of top.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
This event fires when width changes.
sender : Ext.Widget
The instance firing this event.
value : Number/String
The current value of width.
oldValue : Number/String
The previous value of width.
eOpts : Object
The options object passed to Ext.util.Observable.addListener.
Parameters for the "default" DataView UI.
Set to null to eliminate the UI from the CSS output.
background-color for striped DataView Items
Defaults to:
darken($dataitem-background-color, 2)
DataView Item background-color
Defaults to:
$background-color
DataView Item outline-color when focused
Defaults to:
$base-color
DataView Item outline-offset when focused
Defaults to:
-$dataview-item-focused-outline-width
DataView Item outline-style when focused
Defaults to:
solid
DataView Item outline-width when focused
Defaults to:
1px
DataView Item font-size in the big sizing scheme
Defaults to:
$font-size-big
DataView Item font-weight
Defaults to:
$font-weight-normal
DataView Item background-color when hovered
Defaults to:
mix(#fff, $base-light-color, 65%)
DataView Item border-color when hovered
Defaults to:
null
DataView Item line-height in the big sizing scheme
Defaults to:
18px
DataView Item padding in the big sizing scheme
Defaults to:
null
DataView Item background-color when pressed
Defaults to:
null
DataView Item border-color when pressed
Defaults to:
null
DataView Item background-color when selected
Defaults to:
mix(#fff, $base-light-color, 25%)
DataView Item border-color when selected
Defaults to:
null
Creates a visual theme for a DataView.
$ui : String
The name of the UI being created. Can not included spaces or special punctuation (used in CSS class names).
$xtype : String (optional)
The Ext.Class#xtype to use in CSS selectors. For use by UI mixins of derived classes.
Defaults to: dataview
$background-color : color
DataView background-color
$item-color : color
DataView Item text color
$item-hovered-color : color
DataView Item text color when hovered
$item-selected-color : color
DataView Item text color when selected
$item-pressed-color : color
DataView Item text color when pressed
$item-background-color : color
DataView Item background-color
$item-alt-background-color : color
background-color for striped DataView Items
$item-hovered-background-color : color
DataView Item background-color when hovered
$item-selected-background-color : color
DataView Item background-color when selected
$item-pressed-background-color : color
DataView Item background-color when pressed
$item-border-width : Number
DataView Item border-width
$item-border-style : String
DataView Item border-style
$item-border-color : color
DataView Item border-color
$item-hovered-border-color : color
DataView Item border-color when hovered
$item-selected-border-color : color
DataView Item border-color when selected
$item-pressed-border-color : color
DataView Item border-color when pressed
$item-focused-outline-width : Number
DataView outline-width when focused
$item-focused-outline-style : String
DataView outline-style when focused
$item-focused-outline-color : color
DataView outline-color when focused
$item-focused-outline-offset : Number
DataView outline-offset when focused
$item-font-weight : String/Number
DataView Item font-weight
$item-font-size : Number
DataView Item font-size
$item-font-size-big : Number
DataView Item font-size in the big sizing scheme
$item-line-height : Number
DataView Item line-height
$item-line-height-big : Number
DataView Item line-height in the big sizing scheme
$item-font-family : String
DataView Item font-family
$item-padding : Number/list
DataView Item padding
$item-padding-big : Number/list
DataView Item padding in the big sizing scheme
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