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mwpopups.js
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/**
* The public facing MediaWiki Popups API.
*
* @module mw.popups
*/
import { previewTypes } from '../preview/model';
/**
* @private
* @param {string} type
* @return {boolean} whether the preview type supports being disabled/enabled.
*/
function canShowSettingForPreviewType( type ) {
return mw.message( `popups-settings-option-${ type }` ).exists();
}
/**
* This function provides a mw.popups object which can be used by 3rd party
* to interact with Popups.
*
* @ignore
* @param {Redux.Store} store Popups store
* @param {Function} registerModel allows extensions to register custom preview handlers.
* @param {Function} registerPreviewUI allows extensions to register custom preview renderers.
* @param {Function} registerGatewayForPreviewType allows extensions to register gateways for
* preview types.
* @param {Function} registerSetting
* @param {UserSettings} userSettings
* @return {Object} external Popups interface
*/
export default function createMwPopups( store, registerModel, registerPreviewUI,
registerGatewayForPreviewType, registerSetting, userSettings
) {
return {
/**
* @param {string} [type] type of preview, defaults to page if not provided.
* @return {boolean} If Page Previews are currently active
*/
isEnabled: function isEnabled( type ) {
return !!store.getState().preview.enabled[ type || previewTypes.TYPE_PAGE ];
},
/**
* @stable Do not remove properties in the type PopupModule without providing backwards
* compatibility and code that handles migrations.
*
* @typedef {Object} PopupSubtype
* @property {string} type A unique string for identifying the subtype of a page preview
* @property {function(ext.popups.PreviewModel): ext.popups.Preview}[renderFn] How the
* custom preview type will render the preview. If not provided default renderer is used.
*
* @typedef {Object} PopupModule
* @private
* @property {string} type A unique string for identifying the type of page preview
* @property {string} selector A CSS selector which identifies elements that will display
* this type of page preview
* @property {Gateway} gateway A Gateway for obtaining the preview data.
* @property {function(ext.popups.PreviewModel): ext.popups.Preview}[renderFn] How the
* custom preview type will render the preview.
* If not provided default renderer is used.
* @property {PopupSubtype[]} subTypes this is for registering types that are subsets of
* the current type e.g. share the same selector.
* @property {number} [delay] optional delay between hovering and displaying preview.
* If not defined, delay will be zero.
*/
/**
* Register a custom preview type.
*
* @internal for use inside Extension:Popups only. If you want to register a preview
* type, please define `attributes` key in Extension:Popups like so:
* ```
* "attributes": {
* "Popups": {
* "PluginModules": [
* "modulename"
* ]
* }
* ```
*
* @unstable
* @private
* @param {PopupModule} module
*/
register: function ( module ) {
const { type, selector, gateway, renderFn, subTypes, delay, init,
doNotRequireSummary } = module;
if ( !type || !selector || !gateway ) {
throw new Error(
`Registration of Popups custom preview type "${ type }" failed: You must specify a type, a selector, and a gateway.`
);
}
registerModel( type, selector, delay );
registerGatewayForPreviewType( type, gateway );
registerPreviewUI( type, renderFn, doNotRequireSummary );
// Only show if doesn't exist.
if ( canShowSettingForPreviewType( type ) ) {
registerSetting( type, userSettings.isPreviewTypeEnabled( type ) );
} else {
mw.log.warn(
`[Popups] No setting for ${ type } registered.
Please create message with key "popups-settings-option-${ type }" if this is a mistake.`
);
}
if ( subTypes ) {
subTypes.forEach( function ( subTypePreview ) {
registerPreviewUI(
subTypePreview.type,
subTypePreview.renderFn,
subTypePreview.doNotRequireSummary
);
} );
}
// Run initialization function if provided.
if ( typeof init === 'function' ) {
init();
}
}
};
}

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