JavaScript/jQuery Gallery API
The Gallery is a UI component that displays a collection of images in a carousel. The UI component is supplied with various navigation controls that allow a user to switch between images.
Configuration
| Name | Description |
|---|---|
| accessKey |
Specifies the shortcut key that sets focus on the UI component. |
| animationDuration |
The time, in milliseconds, spent on slide animation. |
| animationEnabled |
Specifies whether or not to animate the displayed item change. |
| dataSource |
Binds the UI component to data. |
| disabled |
Specifies whether the UI component responds to user interaction. |
| elementAttr |
Specifies the global attributes to be attached to the UI component's container element. |
| focusStateEnabled |
Specifies whether the UI component can be focused using keyboard navigation. |
| height |
Specifies the UI component's height. |
| hint |
Specifies text for a hint that appears when a user pauses on the UI component. |
| hoverStateEnabled |
Specifies whether the UI component changes its state when a user pauses on it. |
| indicatorEnabled |
A Boolean value specifying whether or not to allow users to switch between items by clicking an indicator. |
| initialItemWidth |
Specifies the width of an area used to display a single image. |
| itemComponent |
An alias for the itemTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information. |
| itemHoldTimeout |
The time period in milliseconds before the onItemHold event is raised. |
| itemRender |
An alias for the itemTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information. |
| items |
An array of items displayed by the UI component. |
| itemTemplate |
Specifies a custom template for items. |
| loop |
A Boolean value specifying whether or not to scroll back to the first item after the last item is swiped. |
| noDataText |
Specifies the text or HTML markup displayed by the UI component if the item collection is empty. |
| onContentReady |
A function that is executed when the UI component's content is ready and each time the content is changed. |
| onDisposing |
A function that is executed before the UI component is disposed of. |
| onInitialized |
A function used in JavaScript frameworks to save the UI component instance. |
| onItemClick |
A function that is executed when a collection item is clicked or tapped. |
| onItemContextMenu |
A function that is executed when a collection item is right-clicked or pressed. |
| onItemHold |
A function that is executed when a collection item has been held for a specified period. |
| onItemRendered |
A function that is executed after a collection item is rendered. |
| onOptionChanged |
A function that is executed after a UI component property is changed. |
| onSelectionChanged |
A function that is executed when a collection item is selected or selection is canceled. |
| rtlEnabled |
Switches the UI component to a right-to-left representation. |
| selectedIndex |
The index of the currently active gallery item. |
| selectedItem |
The selected item object. |
| showIndicator |
A Boolean value specifying whether or not to display an indicator that points to the selected gallery item. |
| showNavButtons |
A Boolean value that specifies the availability of the "Forward" and "Back" navigation buttons. |
| slideshowDelay |
The time interval in milliseconds, after which the gallery switches to the next item. |
| stretchImages |
Specifies if the UI component stretches images to fit the total gallery width. |
| swipeEnabled |
A Boolean value specifying whether or not to allow users to switch between items by swiping. |
| tabIndex |
Specifies the number of the element when the Tab key is used for navigating. |
| visible |
Specifies whether the UI component is visible. |
| width |
Specifies the UI component's width. |
| wrapAround |
Specifies whether or not to display parts of previous and next images along the sides of the current image. |
Methods
| Name | Description |
|---|---|
| beginUpdate() |
Prevents the UI component from refreshing until the endUpdate() method is called. |
| defaultOptions(rule) |
Specifies the device-dependent default configuration properties for this component. |
| dispose() |
Disposes of all the resources allocated to the Gallery instance. |
| element() |
Gets the root UI component element. |
| endUpdate() |
Refreshes the UI component after a call of the beginUpdate() method. |
| focus() |
Sets focus on the UI component. |
| getDataSource() |
Gets the DataSource instance. |
| getInstance(element) |
Gets the instance of a UI component found using its DOM node. |
| goToItem(itemIndex, animation) |
Shows a specific image. |
| instance() |
Gets the UI component's instance. Use it to access other methods of the UI component. |
| nextItem(animation) |
Shows the next image. |
| off(eventName) |
Detaches all event handlers from a single event. |
| off(eventName, eventHandler) |
Detaches a particular event handler from a single event. |
| on(eventName, eventHandler) |
Subscribes to an event. |
| on(events) |
Subscribes to events. |
| option() |
Gets all UI component properties. |
| option(optionName) |
Gets the value of a single property. |
| option(optionName, optionValue) |
Updates the value of a single property. |
| option(options) |
Updates the values of several properties. |
| prevItem(animation) |
Shows the previous image. |
| registerKeyHandler(key, handler) |
Registers a handler to be executed when a user presses a specific key. |
| repaint() |
Repaints the UI component without reloading data. Call it to update the UI component's markup. |
| resetOption(optionName) |
Resets a property to its default value. |
Events
| Name | Description |
|---|---|
| contentReady |
Raised when the UI component's content is ready. |
| disposing |
Raised before the UI component is disposed of. |
| initialized |
Raised only once, after the UI component is initialized. |
| itemClick |
Raised when a collection item is clicked or tapped. |
| itemContextMenu |
Raised when a collection item is right-clicked or pressed. |
| itemHold |
Raised when a collection item has been held for a specified period. |
| itemRendered |
Raised after a collection item is rendered. |
| optionChanged |
Raised after a UI component property is changed. |
| selectionChanged |
Raised when a collection item is selected or selection is canceled. |