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/*
* This file is part of the MediaWiki extension MediaViewer.
*
* MediaViewer is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* MediaViewer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MediaViewer. If not, see <http://www.gnu.org/licenses/>.
*/
const api = new mw.Api();
/**
* Contains/retrieves configuration/environment information for MediaViewer.
*/
class Config {
/**
* The media route prefix
*
* @return {string}
*/
static get ROUTE() {
return 'media';
}
/**
* RegExp representing the media route
*
* @return {RegExp}
*/
static get ROUTE_REGEXP() {
return /^\/media\/(.+)$/;
}
/**
* RegExp representing the media position as in "File:foo.jpg/3"
*
* @return {RegExp}
*/
static get POSITION_REGEXP() {
return /\/(\d+)$/;
}
/**
* Returns true if MediaViewer should handle thumbnail clicks.
*
* @return {boolean}
*/
static isMediaViewerEnabledOnClick() {
return mw.config.get( 'wgMediaViewer' ) && // global opt-out switch, can be set in user JS
mw.config.get( 'wgMediaViewerOnClick' ) && // thumbnail opt-out, can be set in preferences
( mw.user.isNamed() || !mw.storage.get( 'wgMediaViewerOnClick' ) || mw.storage.get( 'wgMediaViewerOnClick' ) === '1' ); // thumbnail opt-out for anons
}
/**
* Returns the location hash (route string) for the given file title.
*
* @param {string} imageFileTitle the file title
* @param {number} [position] the relative position of this image to others with same file
* @return {string} the location hash
* @member mw.mmv
*/
static getMediaHash( imageFileTitle, position ) {
return position > 1 ?
`#/${ this.ROUTE }/${ encodeURI( imageFileTitle ) }/${ position }` :
`#/${ this.ROUTE }/${ encodeURI( imageFileTitle ) }`;
}
/**
* (Semi-)permanently stores the setting whether MediaViewer should handle thumbnail clicks.
* - for logged-in users, we use preferences
* - for anons, we use localStorage
* - for anons with old browsers, we don't do anything
*
* @param {boolean} enabled
* @return {jQuery.Promise} a deferred which resolves/rejects on success/failure respectively
*/
static setMediaViewerEnabledOnClick( enabled ) {
const defaultPrefValue = mw.config.get( 'wgMediaViewerEnabledByDefault' );
let deferred;
let newPrefValue;
let success = true;
if ( !mw.user.isNamed() ) {
if ( !enabled ) {
success = mw.storage.set( 'wgMediaViewerOnClick', '0' ); // localStorage stringifies everything, best use strings in the first place
} else {
success = mw.storage.remove( 'wgMediaViewerOnClick' );
}
if ( success ) {
deferred = $.Deferred().resolve();
} else {
deferred = $.Deferred().reject();
}
} else {
// Simulate changing the option in Special:Preferences. Turns out this is quite hard (bug 69942):
// we need to delete the user_properties row if the new setting is the same as the default,
// otherwise set '1' for enabled, '' for disabled. In theory the pref API will delete the row
// if the new value equals the default, but this does not always work.
if ( defaultPrefValue === true ) {
newPrefValue = enabled ? '1' : '';
} else {
// undefined will cause the API call to omit the optionvalue parameter
// which in turn will cause the options API to delete the row and revert the pref to default
newPrefValue = enabled ? '1' : undefined;
}
deferred = api.saveOption( 'multimediaviewer-enable', newPrefValue );
}
return deferred.done( () => {
// make the change work without a reload
mw.config.set( 'wgMediaViewerOnClick', enabled );
if ( !enabled ) {
// set flag for showing a popup if this was a first-time disable
Config.maybeEnableStatusInfo();
}
} );
}
/**
* True if info about enable/disable status should be displayed (mingle #719).
*
* @return {boolean}
*/
static shouldShowStatusInfo() {
return !this.isMediaViewerEnabledOnClick() && mw.storage.get( 'mmv-showStatusInfo' ) === '1';
}
/**
* Called when MediaViewer is disabled. If status info was never displayed before, future
* shouldShowStatusInfo() calls will return true.
*
* @private
*/
static maybeEnableStatusInfo() {
const currentShowStatusInfo = mw.storage.get( 'mmv-showStatusInfo' );
if ( currentShowStatusInfo === null ) {
mw.storage.set( 'mmv-showStatusInfo', '1' );
}
}
/**
* Called when status info is displayed. Future shouldShowStatusInfo() calls will return false.
*/
static disableStatusInfo() {
mw.storage.set( 'mmv-showStatusInfo', '0' );
}
/**
* Returns UI language
*
* @return {string} Language code
*/
static language() {
return mw.config.get( 'wgUserLanguage', false ) || mw.config.get( 'wgContentLanguage', 'en' );
}
}
mw.mmv = Config;
module.exports = Config;