ExtReact Docs Help

Introduction

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.

Terms, Icons, and Labels

Many classes have shortcut names used when creating (instantiating) a class with a configuration object. The shortcut name is referred to as an alias (or xtype if the class extends Ext.Component). The alias/xtype is listed next to the class name of applicable classes for quick reference.

ExtReact component classes list the configurable name prominently at the top of the API class doc followed by the fully-qualified class name.

Access Levels

Framework classes or their members may be specified as private or protected. Else, the class / member is public. Public, protected, and private are access descriptors used to convey how and when the class or class member should be used.

Member Types

Member Syntax

Below is an example class member that we can disect to show the syntax of a class member (the lookupComponent method as viewed from the Ext.button.Button class in this case).

lookupComponent ( item ) : Ext.Component
protected

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

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

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

Parameters

item :  Object

The config object being added.

Returns
Ext.Component

The component to be added.

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

Member Flags

The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon.

Class Icons

- Indicates a framework class

- A singleton framework class. *See the singleton flag for more information

- A component-type framework class (any class within the Ext JS framework that extends Ext.Component)

- Indicates that the class, member, or guide is new in the currently viewed version

Member Icons

- Indicates a class member of type config

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

Class Member Quick-Nav Menu

Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type (this count is updated as filters are applied). Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation.

Getter and Setter Methods

Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference.

ExtReact component classes do not hoist the getter / setter methods into the prop. All methods will be described in the Methods section

History Bar

Your page history is kept in localstorage and displayed (using the available real estate) just below the top title bar. By default, the only search results shown are the pages matching the product / version you're currently viewing. You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. This will show all recent pages in the history bar for all products / versions.

Within the history config menu you will also see a listing of your recent page visits. The results are filtered by the "Current Product / Version" and "All" radio options. Clicking on the button will clear the history bar as well as the history kept in local storage.

If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled. When checked, the product/version for each historic page will show alongside the page name in the history bar. Hovering the cursor over the page names in the history bar will also show the product/version as a tooltip.

Search and Filters

Both API docs and guides can be searched for using the search field at the top of the page.

On API doc pages there is also a filter input field that filters the member rows using the filter string. In addition to filtering by string you can filter the class members by access level, inheritance, and read only. This is done using the checkboxes at the top of the page.

The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes.

Clicking on an empty search field will show your last 10 searches for quick navigation.

API Doc Class Metadata

Each API doc page (with the exception of Javascript primitives pages) has a menu view of metadata relating to that class. This metadata view will have one or more of the following:

Expanding and Collapsing Examples and Class Members

Runnable examples (Fiddles) are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block. You can also toggle the collapse state of all examples using the toggle button on the top-right of the page. The toggle-all state will be remembered between page loads.

Class members are collapsed on a page by default. You can expand and collapse members using the arrow icon on the left of the member row or globally using the expand / collapse all toggle button top-right.

Desktop -vs- Mobile View

Viewing the docs on narrower screens or browsers will result in a view optimized for a smaller form factor. The primary differences between the desktop and "mobile" view are:

Viewing the Class Source

The class source can be viewed by clicking on the class name at the top of an API doc page. The source for class members can be viewed by clicking on the "view source" link on the right-hand side of the member row.

ExtReact 6.7.0


top

listpaging Ext.dataview.plugin.ListPaging

NPM Package

@sencha/ext-react

Hierarchy

Summary

Adds a Load More button at the bottom of the list. When the user presses this button, the next page of data will be loaded into the store and appended to the List.

By specifying autoPaging: true, an 'infinite scroll' effect can be achieved, i.e., the next page of content will load automatically when the user scrolls near the bottom of the list.

Example

Ext.create('Ext.dataview.List', {

    store: Ext.create('TweetStore'),

    plugins: [
        {
            type: 'listpaging',
            autoPaging: true
        }
    ],

    itemTpl: [
        '<img src="{profile_image_url}" />',
        '<div class="tweet">{text}</div>'
    ]
});
No members found using the current filters

properties

Optional Properties

autoPaging : Boolean
immutable imm

True to automatically load the next page as soon as less than bufferZone items are available besides the ones currently visible.

Defaults to:

false

autoPaging : Boolean
immutable imm

True to automatically load the next page as soon as less than bufferZone items are available besides the ones currently visible.

Defaults to:

false

bufferZone : Number
immutable imm

Amount of items, besides the ones currently visible, that need to be available until the next page is loaded. If 0 (or null), the next page is loaded when the list is scrolled to the bottom. This config only applies if autoPaging is true.

Defaults to:

8

bufferZone : Number
immutable imm

Amount of items, besides the ones currently visible, that need to be available until the next page is loaded. If 0 (or null), the next page is loaded when the list is scrolled to the bottom. This config only applies if autoPaging is true.

Defaults to:

8

id : String
immutable imm

An identifier for the plugin that can be set at creation time to later retrieve the plugin using the getPlugin method. For example:

 var panel = Ext.create({
     xtype: 'panel',

     plugins: [{
         id: 'foo',
         ...
     }]
 });

 // later on:
 var plugin = panel.getPlugin('foo');

Available since: 6.2.0

loadMoreCmp : Object
immutable imm private pri

Defaults to:

{
    xtype: 'component',
    cls: Ext.baseCSSPrefix + 'listpaging',
    scrollDock: 'end',
    hidden: true,
    inheritUi: true
}

loadMoreText : String
immutable imm

The text used as the label of the Load More button.

Defaults to:

'Load More...'

loadMoreText : String
immutable imm

The text used as the label of the Load More button.

Defaults to:

'Load More...'

loading : Boolean
immutable imm private pri

True if the plugin has initiated a Store load that has not yet completed.

Defaults to:

false

noMoreRecordsText : String
immutable imm

The text used as the label of the Load More button when the Store's totalCount indicates that all of the records available on the server are already loaded

Defaults to:

'No More Records'

noMoreRecordsText : String
immutable imm

The text used as the label of the Load More button when the Store's totalCount indicates that all of the records available on the server are already loaded

Defaults to:

'No More Records'

methods

Instance Methods

addLoadMoreCmp
private pri

Because the attached List's inner list element is rendered after our init function is called, we need to dynamically add the loadMoreCmp later. This does this once and caches the result.

applyLoadMoreCmp ( config, instance )
private pri

Parameters

config :  Object

instance :  Object

bindStore ( store )
private pri

Parameters

store :  Object

clonePlugin ( [overrideCfg] )

Creates clone of the plugin.

Parameters

overrideCfg :  Object (optional)

Additional config for the derived plugin.

destroy

The destroy method is invoked by the owning Component at the time the Component is being destroyed.

detachCmp

Plugins that can be disconnected from their host component should implement this method.

Available since: 6.2.0

disableDataViewMask ( store )
private pri

Removes the List/DataView's loading mask because we show our own in the plugin. The logic here disables the loading mask immediately if the store is autoloading. If it's not autoloading, allow the mask to show the first time the Store loads, then disable it and use the plugin's loading spinner.

Parameters

store :  Ext.data.Store

The store that is bound to the DataView

getCmp Ext.Component

Returns the component to which this plugin is attached.

Returns

:Ext.Component

The owning host component.

getLoading : Boolean
private

Sets the value of loading

init ( list )
private pri

Sets up all of the references the plugin needs

Parameters

list :  Object

onScroll
private pri

If we're using autoPaging and detect that the user has scrolled to the bottom, kick off loading of the next page.

onStoreBeforeLoad ( store )
private pri

If the Store is just about to load but it's currently empty, we hide the load more button because this is usually an outcome of setting a new Store on the List so we don't want the load more button to flash while the new Store loads.

Parameters

store :  Object

onStoreChange ( list, store )
private pri

Parameters

list :  Object

store :  Object

setAutoPaging ( autoPaging )

Returns the value of autoPaging

setAutoPaging ( autoPaging )

Returns the value of autoPaging

setBufferZone ( bufferZone )

Returns the value of bufferZone

setBufferZone ( bufferZone )

Returns the value of bufferZone

setCmp ( host )

Sets the host component to which this plugin is attached. For a plugin to be removable without being destroyed, this method should be provided and be prepared to receive null for the component.

Parameters

host :  Ext.Component

The owning host component.

setLoadMoreCmp ( loadMoreCmp )
private

Returns the value of loadMoreCmp

setLoadMoreText ( loadMoreText )

Returns the value of loadMoreText

setLoadMoreText ( loadMoreText )

Returns the value of loadMoreText

setLoading ( loading )
private

Returns the value of loading

setNoMoreRecordsText ( noMoreRecordsText )

Returns the value of noMoreRecordsText

setNoMoreRecordsText ( noMoreRecordsText )

Returns the value of noMoreRecordsText

storeFullyLoaded Boolean
private pri

Returns true if the Store is detected as being fully loaded, or the server did not return a total count, which means we're in 'infinite' mode

Returns

:Boolean

updateLoading ( isLoading )
private pri

Makes sure we add/remove the loading CSS class while the Store is loading

Parameters

isLoading :  Object

Static Methods

override ( members ) : Ext.Base
static sta

Override members of this class. Overridden methods can be invoked via Ext.Base#callParent.

Ext.define('My.Cat', {
    constructor: function() {
        alert("I'm a cat!");
    }
});

My.Cat.override({
    constructor: function() {
        alert("I'm going to be a cat!");

        this.callParent(arguments);

        alert("Meeeeoooowwww");
    }
});

var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
                          // alerts "I'm a cat!"
                          // alerts "Meeeeoooowwww"

Direct use of this method should be rare. Use Ext.define instead:

Ext.define('My.CatOverride', {
    override: 'My.Cat',
    constructor: function() {
        alert("I'm going to be a cat!");

        this.callParent(arguments);

        alert("Meeeeoooowwww");
    }
});

The above accomplishes the same result but can be managed by the Ext.Loader which can properly order the override and its target class and the build process can determine whether the override is needed based on the required state of the target class (My.Cat).

Parameters

members :  Object

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

Returns

:Ext.Base

this class

ExtReact 6.7.0