Files
mediawiki-extensions-Univer…/resources/js/ext.uls.displaysettings.js
Santhosh Thottingal a5d79594a3 Simplify the cancel logic for input and display settings
Restore the language(ui, content), font values, input method values.

Rest of the UI resetting will be done by redrawing the settings
area whenever the language settings is accessed again.

Change-Id: Ia1488d1501f9c9f61726cea3637624f22a7ba135
2013-08-26 14:56:38 +00:00

641 lines
20 KiB
JavaScript

/**
* ULS-based display settings panel
*
* Copyright (C) 2012 Alolita Sharma, Amir Aharoni, Arun Ganesh, Brandon Harris,
* Niklas Laxström, Pau Giner, Santhosh Thottingal, Siebrand Mazeland and other
* contributors. See CREDITS for a list.
*
* UniversalLanguageSelector is dual licensed GPLv2 or later and MIT. You don't
* have to do anything special to choose one license or the other and you don't
* have to notify anyone which license you are using. You are free to use
* UniversalLanguageSelector in commercial projects as long as the copyright
* header is left intact. See files GPL-LICENSE and MIT-LICENSE for details.
*
* @file
* @ingroup Extensions
* @licence GNU General Public Licence 2.0 or later
* @licence MIT License
*/
( function ( $, mw, undefined ) {
'use strict';
var template = '<div class="uls-display-settings">'
+ '<div class="row">' // Tab switcher buttons
+ '<div class="twelve columns uls-display-settings-tab-switcher">'
+ '<div class="uls-button-group">'
+ '<button id="uls-display-settings-language-tab" class="button down" data-i18n="ext-uls-display-settings-language-tab"></button>'
+ '<button id="uls-display-settings-fonts-tab" class="button" data-i18n="ext-uls-display-settings-fonts-tab"></button>'
+ '</div>'
+ '</div>'
+ '</div>'
+ '<div class="ext-uls-sub-panel uls-display-settings-language-tab">' // Begin display language sub-panel
// "Display language", title above the buttons row
+ '<div class="row">'
+ '<div class="eleven columns">'
+ '<h4 data-i18n="ext-uls-display-settings-ui-language"></h4>'
+ '</div>'
+ '</div>'
// UI languages buttons row
+ '<div class="row">'
+ '<div class="uls-ui-languages eleven columns">'
+ '<p data-i18n="ext-uls-language-buttons-help"></p>'
+ '</div>'
+ '</div>'
+ '</div>' // End display language section
+ '<div class="ext-uls-sub-panel uls-display-settings-fonts-tab hide">' // Begin font settings section, hidden by default
// "Font settings" title
+ '<div class="row">'
+ '<div class="twelve columns">'
+ '<h4 data-i18n="ext-uls-display-settings-font-settings"></h4>'
+ '</div>'
+ '</div>'
+ '<div id="uls-display-settings-font-selectors" class="uls-display-settings-font-selectors">'
// Menus font selection dropdown with label
+ '<div class="row uls-font-item uls-content-fonts">'
+ '<div class="six columns">'
+ '<label class="uls-font-label" id="content-font-selector-label"></label>'
+ '</div>'
+ '<select id="content-font-selector" class="four columns end uls-font-select"></select>'
+ '</div>'
// Content font selection dropdown with label
+ '<div class="row uls-font-item uls-ui-fonts">'
+ '<div class="six columns">'
+ '<label class="uls-font-label" id="ui-font-selector-label"></label>'
+ '</div>'
+ '<select id="ui-font-selector" class="four columns end uls-font-select"></select>'
+ '</div>'
+ '</div>' // End font selectors
+ '</div>' // End font settings section
// Separator
+ '<div class="row"></div>'
// Apply and Cancel buttons
+ '<div class="row language-settings-buttons">'
+ '<div class="eleven columns">'
+ '<button class="button uls-display-settings-cancel" data-i18n="ext-uls-language-settings-cancel"></button>'
+ '<button class="button active blue" id="uls-displaysettings-apply" data-i18n="ext-uls-language-settings-apply" disabled></button>'
+ '</div>'
+ '</div>'
+ '</div>';
function DisplaySettings( $parent ) {
this.name = $.i18n( 'ext-uls-display-settings-title-short' );
this.description = $.i18n( 'ext-uls-display-settings-desc' );
this.$template = $( template );
this.uiLanguage = this.getUILanguage();
this.contentLanguage = this.getContentLanguage();
this.$webfonts = null;
this.$parent = $parent;
}
DisplaySettings.prototype = {
constructor: DisplaySettings,
/**
* Render the module into a given target
*/
render: function () {
this.$parent.$settingsPanel.empty();
this.$webfonts = $( 'body' ).data( 'webfonts' );
this.$parent.$settingsPanel.append( this.$template );
this.disableApplyButton();
this.prepareLanguages();
this.prepareUIFonts();
this.prepareContentFonts();
$.i18n().locale = this.uiLanguage;
this.i18n();
this.$webfonts.refresh();
this.listen();
this.dirty = false;
this.savedRegistry = $.extend( true, {}, mw.webfonts.preferences );
},
/**
* Prepare the UI language selector
*/
prepareLanguages: function () {
var loginUri, $loginCta,
displaySettings = this,
SUGGESTED_LANGUAGES_NUMBER = 3,
anonsAllowed = mw.config.get( 'wgULSAnonCanChangeLanguage' ),
languagesForButtons, $languages, suggestedLanguages,
lang, i, language, $button;
// Don't let anonymous users change interface language
if ( !anonsAllowed && mw.user.isAnon() ) {
loginUri = new mw.Uri();
loginUri.query = {
title: 'Special:UserLogin'
};
$loginCta = $( '<p>' )
.attr( 'id', 'uls-display-settings-anon-log-in-cta' );
this.$template.find( '.uls-display-settings-language-tab' )
.empty()
.append(
$( '<p>' ).append(
$( '<span>' )
.addClass( 'uls-display-settings-anon-label' )
.html( $.i18n( 'ext-uls-display-settings-anon-label' ) + '&#160;' ),
$( '<span>' )
.text( $.i18n( 'ext-uls-display-settings-anon-same-as-content' ) )
),
$loginCta
);
new mw.Api().parse( $.i18n( 'ext-uls-display-settings-anon-log-in-cta' ) )
.done( function ( parsedCta ) {
var deferred = new $.Deferred();
$loginCta.html( parsedCta );
$loginCta.find( 'a' ).click( function ( event ) {
event.preventDefault();
// Because browsers navigate away when clicking a link,
// we are are overriding the normal click behavior to
// allow the event be logged first - currently there is no
// local queue for events. Since the hook system does not
// allow returning values, we have this ugly event logging
// specific hack to delay the page load if event logging
// is enabled. The promise is passed to the hook, so that
// if event logging is enabled, in can resole the promise
// immediately to avoid extra delays.
deferred.done( function () {
window.location.href = event.target.href;
} );
mw.hook( 'mw.uls.login.click' ).fire( deferred );
// Delay is zero if event logging is not enabled
window.setTimeout( function () {
deferred.resolve();
}, mw.config.get( 'wgULSEventLogging' ) * 500 );
} );
} );
return;
}
$languages = this.$template.find( 'div.uls-ui-languages' );
suggestedLanguages = this.frequentLanguageList()
// Common world languages, for the case that there are
// too few suggested languages
.concat( [ 'en', 'zh', 'fr' ] );
// Content language is always on the first button
languagesForButtons = [ this.contentLanguage ];
// This is needed when drawing the panel for the second time
// after selecting a different language
$languages.find( 'button' ).remove();
// UI language must always be present
if ( this.uiLanguage !== this.contentLanguage ) {
languagesForButtons.push( this.uiLanguage );
}
for ( lang in suggestedLanguages ) {
// Skip already found languages
if ( $.inArray( suggestedLanguages[lang], languagesForButtons ) > -1 ) {
continue;
}
languagesForButtons.push( suggestedLanguages[lang] );
// No need to add more languages than buttons
if ( languagesForButtons.length >= SUGGESTED_LANGUAGES_NUMBER ) {
break;
}
}
function buttonHandler( button ) {
return function () {
displaySettings.markDirty();
displaySettings.uiLanguage = button.data( 'language' ) || displaySettings.uiLanguage;
$( 'div.uls-ui-languages button.button' ).removeClass( 'down' );
button.addClass( 'down' );
displaySettings.prepareUIFonts();
// set the language for the settings panel so that webfonts
// are correctly applied.
displaySettings.$template.attr( 'lang', displaySettings.uiLanguage );
displaySettings.preview( displaySettings.uiLanguage );
};
}
// Add the buttons for the most likely languages
for ( i = 0; i < SUGGESTED_LANGUAGES_NUMBER; i++ ) {
language = languagesForButtons[i];
$button = $( '<button>' )
.addClass( 'button uls-language-button' )
.text( $.uls.data.getAutonym( language ) )
.prop( {
lang: language,
dir: $.uls.data.getDir( language )
} );
if ( language === this.uiLanguage ) {
$button.addClass( 'down' );
}
$button.data( 'language', language );
$languages.append( $button );
$button.on( 'click', buttonHandler( $button ) );
}
this.prepareMoreLanguages();
},
/**
* Prepare the more languages button. It is a ULS trigger
*/
prepareMoreLanguages: function () {
var displaySettings = this,
$languages, $moreLanguagesButton;
$languages = this.$template.find( 'div.uls-ui-languages' );
$moreLanguagesButton = $( '<button>' )
.prop( 'class', 'uls-more-languages' )
.addClass( 'button' ).text( '...' );
$languages.append( $moreLanguagesButton );
// Show the long language list to select a language for display settings
$moreLanguagesButton.uls( {
left: displaySettings.$parent.left,
top: displaySettings.$parent.top,
onReady: function () {
var uls = this,
$back = $( '<a>' )
.data( 'i18n', 'ext-uls-back-to-display-settings' )
.i18n();
$back.click( function () {
uls.hide();
displaySettings.$parent.show();
} );
uls.$menu.find( 'div.uls-title-region' ).append( $back );
uls.$menu.find( 'h1.uls-title' )
.data( 'i18n', 'ext-uls-display-settings-ui-language' )
.i18n();
uls.$menu.prepend(
$( '<span>' ).addClass( 'caret-before' ),
$( '<span>' ).addClass( 'caret-after' )
);
},
onVisible: function () {
var $parent;
mw.uls.addEventLoggingTriggers();
if ( !displaySettings.$parent.$window.hasClass( 'callout' ) ) {
// callout menus will have position rules. others use
// default position
return;
}
$parent = $( '#language-settings-dialog' );
// Re-position the element according to the window that called it
if ( parseInt( $parent.css( 'left' ), 10 ) ) {
this.$menu.css( 'left', $parent.css( 'left' ) );
}
if ( parseInt( $parent.css( 'top' ), 10 ) ) {
this.$menu.css( 'top', $parent.css( 'top' ) );
}
// If the ULS is shown in the the sidebar,
// add a caret pointing to the icon
if ( displaySettings.$parent.$window.hasClass( 'callout' ) ) {
this.$menu.addClass( 'callout' );
} else {
this.$menu.removeClass( 'callout' );
}
},
onSelect: function ( langCode ) {
displaySettings.markDirty();
displaySettings.uiLanguage = langCode;
displaySettings.$parent.show();
displaySettings.prepareUIFonts();
displaySettings.prepareLanguages();
// set the language for the settings panel so that webfonts
// are correctly applied.
displaySettings.$template.attr( 'lang', langCode );
displaySettings.preview( langCode );
},
quickList: function () {
return mw.uls.getFrequentLanguageList();
}
} );
$moreLanguagesButton.on( 'click', function () {
displaySettings.$parent.hide();
mw.hook( 'mw.uls.interface.morelanguages' ).fire();
} );
},
/**
* Preview the settings panel in the given language
* @param {String} language Language code
*/
preview: function ( language ) {
var displaySettings = this;
mw.uls.loadLocalization( language ).done( function () {
displaySettings.i18n();
} );
},
/**
* Get previous languages
* @returns {Array}
*/
frequentLanguageList: function () {
return mw.uls.getFrequentLanguageList();
},
/**
* Get the current user interface language.
* @returns String Current UI language
*/
getUILanguage: function () {
return mw.config.get( 'wgUserLanguage' );
},
/**
* Get the current content language.
* @returns String Current content language
*/
getContentLanguage: function () {
return mw.config.get( 'wgContentLanguage' );
},
/**
* Prepare a font selector section with a label and a selector element.
*
* @param target String 'ui' or 'content'
*/
prepareFontSelector: function ( target ) {
var language, fonts, $fontSelector, savedFont,
$systemFont, $fontLabel, $fontsSection;
// Get the language code from the right property -
// uiLanguage or contentLanguage
language = this[ target + 'Language' ];
fonts = this.$webfonts.list( language );
// Possible classes:
// uls-ui-fonts
// uls-content-fonts
$fontsSection = this.$template.find( 'div.uls-' + target + '-fonts' );
// The section may be visible from the previous time
// the user opened the dialog, so we need to hide it.
if ( fonts.length === 0 ) {
$fontsSection.hide();
return;
}
$fontsSection.show();
// Possible ids:
// uls-ui-font-selector
// uls-content-font-selector
$fontSelector = this.$template.find( '#' + target + '-font-selector' );
// Remove all current fonts
$fontSelector.find( 'option' ).remove();
// Get the saved font using the fontSelector defined in mw.webfonts.setup
savedFont = this.$webfonts.getFont( language );
$.each( fonts, function ( key, font ) {
var $fontOption;
if ( font !== 'system' ) {
$fontOption = $( '<option>' ).attr( 'value', font ).text( font );
$fontSelector.append( $fontOption );
$fontOption.attr( 'selected', savedFont === font );
}
} );
$systemFont = $( '<option>' ).val( 'system' ).text( $.i18n( 'ext-uls-webfonts-system-font' ) );
$fontSelector.append( $systemFont );
$systemFont.attr( 'selected', savedFont === 'system' || !savedFont );
// Possible ids:
// uls-ui-font-selector-label
// uls-content-font-selector-label
$fontLabel = this.$template.find( '#' + target + '-font-selector-label' );
$fontLabel.empty();
$fontLabel.append( $( '<strong>' ) );
// Possible messages:
// ext-uls-webfonts-select-for-ui-info
// ext-uls-webfonts-select-for-content-info
$fontLabel.append( $( '<div>' )
.attr( 'data-i18n', 'ext-uls-webfonts-select-for-' + target + '-info' ) );
},
/**
* i18n this settings panel
*/
i18n: function () {
this.$template.i18n();
this.$template.find( '#ui-font-selector-label strong' )
.text( $.i18n( 'ext-uls-webfonts-select-for', $.uls.data.getAutonym( this.uiLanguage ) ) );
this.$template.find( '#content-font-selector-label strong' )
.text( $.i18n( 'ext-uls-webfonts-select-for', $.uls.data.getAutonym( this.contentLanguage ) ) );
},
/**
* Prepare the font selector for UI language.
*/
prepareUIFonts: function () {
if ( this.uiLanguage === this.contentLanguage ) {
this.$template.find( 'div.uls-ui-fonts' ).hide();
return;
}
this.prepareFontSelector( 'ui' );
},
/**
* Prepare the font selector for UI language.
*/
prepareContentFonts: function () {
this.prepareFontSelector( 'content' );
},
/**
* Mark dirty, there are unsaved changes. Enable the apply button.
* Useful in many places when something changes.
*/
markDirty: function () {
this.dirty = true;
this.$template.find( '#uls-displaysettings-apply' ).removeAttr( 'disabled' );
},
disableApplyButton: function () {
this.$template.find( '#uls-displaysettings-apply' ).prop( 'disabled', true );
},
/**
* Register general event listeners
*/
listen: function () {
var displaySettings = this,
$contentFontSelector = this.$template.find( '#content-font-selector' ),
$uiFontSelector = this.$template.find( '#ui-font-selector' ),
$tabButtons = displaySettings.$template.find( '.uls-display-settings-tab-switcher button' );
// TODO all these repeated selectors can be placed in object constructor.
displaySettings.$template.find( '#uls-displaysettings-apply' ).on( 'click', function () {
displaySettings.apply();
} );
displaySettings.$template.find( 'button.uls-display-settings-cancel' ).on( 'click', function () {
displaySettings.cancel();
displaySettings.close();
} );
$uiFontSelector.on( 'change', function () {
displaySettings.markDirty();
mw.webfonts.preferences.setFont( displaySettings.uiLanguage,
$( this ).find( 'option:selected' ).val()
);
displaySettings.$webfonts.refresh();
} );
$contentFontSelector.on( 'change', function () {
displaySettings.markDirty();
mw.webfonts.preferences.setFont( displaySettings.contentLanguage,
$( this ).find( 'option:selected' ).val()
);
displaySettings.$webfonts.refresh();
} );
$tabButtons.on( 'click', function () {
var $button = $( this );
if ( $button.hasClass( 'down' ) ) {
return;
}
displaySettings.$template.find( '.ext-uls-sub-panel' ).each( function () {
var $subPanel = $( this );
if ( $subPanel.hasClass( $button.attr( 'id' ) ) ) {
$subPanel.removeClass( 'hide' );
} else {
$subPanel.addClass( 'hide' );
}
} );
displaySettings.$parent.position();
$tabButtons.filter( '.down' ).removeClass( 'down');
$button.addClass( 'down' );
} );
mw.hook( 'mw.uls.settings.cancel' ).add( $.proxy( this.cancel, this ) );
},
/**
* Hide this window.
* Used while navigating to language selector and need coming back
*/
hide: function () {
this.$parent.hide();
},
/**
* Close the language settings window.
* Depending on the context, actions vary.
*/
close: function () {
this.$parent.close();
},
/**
* Callback for save preferences
*/
onSave: function ( success ) {
if ( success ) {
if ( this.$webfonts !== undefined ) {
// Live font update
this.$webfonts.refresh();
}
this.$parent.hide();
// we delay change UI language to here, because it causes a page refresh
if ( this.uiLanguage !== this.getUILanguage() ) {
mw.uls.changeLanguage( this.uiLanguage );
}
} // @todo What to do in case of failure?
},
/**
* Handle the apply button press
*/
apply: function () {
var displaySettings = this;
// Save the preferences
mw.webfonts.preferences.save( function ( result ) {
var newFonts = mw.webfonts.preferences.registry.fonts || {},
oldFonts = displaySettings.savedRegistry.registry.fonts || {};
if ( newFonts[displaySettings.uiLanguage] !== oldFonts[displaySettings.uiLanguage] ) {
mw.hook( 'mw.uls.font.change' ).fire(
'interface', displaySettings.uiLanguage, newFonts[displaySettings.uiLanguage]
);
}
if ( newFonts[displaySettings.contentLanguage] !== oldFonts[displaySettings.contentLanguage] ) {
mw.hook( 'mw.uls.font.change' ).fire(
'content', displaySettings.contentLanguage, newFonts[displaySettings.contentLanguage]
);
}
// closure for not losing the scope
displaySettings.onSave( result );
displaySettings.dirty = false;
// Update the back-up preferences for the case of canceling
displaySettings.savedRegistry = $.extend( true, {}, mw.webfonts.preferences );
} );
},
/**
* Cancel the changes done by user for display settings
*/
cancel: function () {
if ( !this.dirty ) {
return;
}
// Reload preferences
mw.webfonts.preferences = $.extend( true, {}, this.savedRegistry );
// Restore content and UI language
this.uiLanguage = this.getUILanguage();
this.contentLanguage = this.getContentLanguage();
}
};
// Register this module to language settings modules
$.fn.languagesettings.modules = $.extend( $.fn.languagesettings.modules, {
display: DisplaySettings
} );
}( jQuery, mediaWiki ) );