User:PhiLiP/ToolsRedirect/tools-redirect.js

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// <nowiki>
/* vim:set noexpandtab ft=javascript ts=4 sw=4: */

( function ( $ ) {
	"use strict";

	var _TR,
		origPageName = mw.config.get( "wgPageName" ),
		scriptPath = mw.config.get( "wgScriptPath" ),
		nsNumber = mw.config.get( "wgNamespaceNumber" ),
		isCategory = nsNumber === 14,
		_findRedirectCallbacks = [],
		_pageWithRedirectTextSuffix = {},
		_redirectExcludes = {},
		SUFFIX_APPEND = 0,
		SUFFIX_REPLACE = 1,
		SUFFIX_SETDEFAULT = 2,
		_nsCanonPrefix = origPageName.split( ":" )[ 0 ] + ":",
		_nsPrefixPattern = $.map(
			mw.config.get( "wgNamespaceIds" ), function ( nsid, text ) {
				return nsid === nsNumber ? text : null;
			} ).join( "|" );
	_nsPrefixPattern = new RegExp( "^(" + _nsPrefixPattern + "):", "i" );

	if ( nsNumber === 0 ) { // articles
		_nsCanonPrefix = "";
		_nsPrefixPattern = /^/;
	}

	function fixNamespace( title ) {
		if ( nsNumber === 0 ) {
			// do nothing if it's articles
			return title;
		} else if ( _nsPrefixPattern.test( title ) ) {
			// canonize the namespace
			return title.replace( _nsPrefixPattern, _nsCanonPrefix );
		} else {
			// don't have a namespace
			return _nsCanonPrefix + title;
		}
	}

	mw.toolsRedirect = {

		SUFFIX_APPEND: SUFFIX_APPEND,
		SUFFIX_REPLACE: SUFFIX_REPLACE,
		SUFFIX_SETDEFAULT: SUFFIX_SETDEFAULT,

		findRedirectCallback: function ( callback ) {
			/* Add new custom callback for finding new
			 * potential redirect titles.
			 *
			 * @param {function} callback( pagename, $content, titles ) -> title list
			 */
			if ( arguments.length === 1 ) {
				_findRedirectCallbacks.push( callback );
			} else {
				$.merge( _findRedirectCallbacks, arguments );
			}
			return this;
		},

		findRedirectBySelector: function ( selector ) {
			/* A shortcut to add CSS selectors as rule to find new potential
			 * redirect titles.
			 *
			 * @param {string} selector
			 */
			_findRedirectCallbacks.push( function () {
				return $( selector ).map( function () {
					var title = $( this ).text();
					return title || null;
				} );
			} );
			return this;
		},

		setRedirectTextSuffix: function ( title, suffix, flag ) {
			var flag_set = false,
				flag_append = false;
			flag = flag || SUFFIX_APPEND; // default append
			flag_set = flag === SUFFIX_REPLACE;
			title = fixNamespace( title );
			if ( title in _pageWithRedirectTextSuffix ) {
				flag_append = flag === SUFFIX_APPEND;
			} else {
				// if not exist, every flag can set
				flag_set = true;
			}

			if ( flag_set ) {
				_pageWithRedirectTextSuffix[ title ] = suffix;
			} else if ( flag_append ) {
				_pageWithRedirectTextSuffix[ title ] =
					_pageWithRedirectTextSuffix[ title ] + suffix;
			}
		}

	};

	_TR = {
		msg: null,
		tabselem: null,
		tagselem: null,
		variants: [
			"zh-hans", "zh-hant", "zh-cn", "zh-hk",
			"zh-mo", "zh-sg", "zh-tw"
		],
		init: function () {
			if ( !this.msg ) {
				return;
			} // not setup correctly
			var self = this,
				btn = $(
					"<li id=\"ca-redirect\" class=\"collapsible\" style=\"cursor:pointer\"><span><a title=\"" + this.msg.btndesc + "\">" +
					this.msg.btntitle + "</a></span></li>" );
			btn.click( function ( evt ) {
				evt.preventDefault();
				self.dialog();
			} );
			$( "li#ca-history" ).after( btn );
		},
		dialog: function () {
			var dlg = $( "<div class=\"dialog-redirect\" title=\"" + this.msg.dlgtitle + "\">" )
				.dialog( {
					bgiframe: true, resizable: false, modal: true, width: 600 } );
			this.tabselem = $( "<div class=\"tab-redirect\">" ).appendTo( dlg );
			this.tagselem = $( "<ul>" ).appendTo( this.tabselem );
			this.addTabs();
			this.tabselem.tabs();
		},
		addTabs: function () {
			for ( var kname in this.tabs ) {
				if ( this.tabs[ kname ] === null ) {
					this.tabs[ kname ] = this[ "_initTab" + kname[ 0 ].charAt( 0 ).toUpperCase() + kname.slice( 1 ) ]();
				}
				var tab = this.tabs[ kname ];
				this.tagselem.append( tab.tag );
				this.tabselem.append( tab.cont );
			}
			// default tab, autoload when dialog initiate
			this.loadView();
		},
		createTab: function ( tabname, tabtitle, onClick ) {
			var self = this,
				tag = $( "<li><a href=\"#tab-" + tabname + "\">" + tabtitle + "</a></li>" ),
				cont = $( "<div id=\"tab-" + tabname + "\"/>" );
			$( "a", tag ).on( "click", function () {
				onClick.call( self );
			} );
			return { tag: tag, cont: cont, loaded: false };
		},
		_initTabView: function () {
			return this.createTab( "view", this.msg.tabviewtitle, this.loadView );
		},
		_initTabCreate: function () {
			return this.createTab( "create", this.msg.tabcreatetitle, this.loadCreate );
		},
		tabs: {
			view: null,
			create: null
		},
		fix: function ( pagenames ) {
			var self = this;
			$( "p.desc", this.tabs.view.cont ).text( this.msg.fixloading );
			$( "p[class!=desc]", this.tabs.view.cont ).remove();
			this.loading( this.tabs.view.cont );
			this
				.bulkEdit(
					pagenames,
					this.msg.fixtext.replace( "$1", origPageName ),
					this.msg.fixsummary
				)
				.done( function () {
				// delay load before the asynchronous tasks on server finished
					setTimeout( function () {
						self.loaded( self.tabs.view.cont );
						self.loadView( true );
					}, 3000 );
				} );
		},
		create: function ( pagenames ) {
			var self = this;
			$( "p.desc", this.tabs.create.cont ).text( this.msg.createloading );
			$( "p[class!=desc]", this.tabs.create.cont ).remove();
			this.loading( this.tabs.create.cont );
			this
				.bulkEdit(
					pagenames,
					this.msg.createtext.replace( "$1", origPageName ),
					this.msg.createsummary.replace( "$1", origPageName )
				)
				.done( function () {
				// delay load before the asynchronous tasks on server finished
					setTimeout( function () {
						self.loaded( self.tabs.create.cont );
						self.tabs.view.loaded = false;
						self.loadCreate( true );
					}, 500 );
				} );
		},
		addRedirectTextSuffix: function ( title, text ) {
			if ( title in _pageWithRedirectTextSuffix ) {
				text = text + _pageWithRedirectTextSuffix[ title ];
			}
			return text;
		},
		bulkEdit: function ( titles, text, summary ) {
			var self = this;
			titles = titles.filter( function ( v, i, arr ) {
				return arr.indexOf( v ) === i;
			} );
			titles = titles.join( "|" );

			return $.ajax( this.buildQuery(
				{ action: "query", prop: "info", titles: titles, meta: "tokens" } ) )
				.then( function ( data ) {
					var deferreds = [];
					$.each( data.query.pages, function ( idx, page ) {
						deferreds.push( $.ajax( self.buildQuery( {
							action: "edit",
							title: page.title,
							token: data.query.tokens.csrftoken,
							text: self.addRedirectTextSuffix( page.title, text ),
							summary: summary,
							tags: "ToolsRedirect"
						} ) ) );
					} );
					return $.when.apply( $, deferreds );
				} );
		},
		loadTabCont: function ( tabname, callback, reload ) {
			var self = this,
				tab = this.tabs[ tabname ];
			if ( reload ) {
				tab.loaded = false;
			}
			if ( !tab.loaded ) {
				tab.cont.html( "" );
				var $desc = $( "<p class=\"desc\"><span class=\"desc-text\">" +
					this.msg.rediloading + "</span></p>" ).appendTo( tab.cont ),
					$text = $desc.find( "> .desc-text" );
				callback.apply( this )
					.done( function () { $text.text( self.msg[ "tab" + tabname + "desc" ] ); } )
					.fail( function () { $text.text( self.msg[ "tab" + tabname + "notfound" ] ); } )
					.always( function () {
						self.addMethods( $desc, [ {
							href: "#refresh",
							title: self.msg.refresh,
							click: function ( evt ) {
								evt.preventDefault();
								self.loadTabCont( tabname, callback, true );
							}
						} ] );
					} );
				tab.loaded = true;
			}
		},
		loading: function ( container ) {
			if ( container.prop( "tagName" ).toLowerCase() === "span" ) {
				container.addClass( "mw-ajax-loader" );
			} else if ( $( "span.mw-ajax-loader", container ).length === 0 ) {
				$( "<span class=\"mw-ajax-loader\"></span>" ).appendTo( container );
			}
		},
		loaded: function ( container ) {
			if ( container.prop( "tagName" ).toLowerCase() === "span" ) {
				container.removeClass( "mw-ajax-loader" );
			} else {
				$( "span.mw-ajax-loader", container ).remove();
			}
		},
		selectAll: function ( cont ) {
			$( "input[type=checkbox]:not(:disabled)", cont )
				.prop( "checked", true );
		},
		selectInverse: function ( cont ) {
			$( "input[type=checkbox]:not(:disabled)", cont )
				.each( function () {
					var e = $( this );
					e.prop( "checked", !e.prop( "checked" ) );
				} );
		},
		selectAction: function ( cont, cb ) {
			var pagenames = [];
			$( "input[type=checkbox]:checked", cont )
				.each( function () {
					pagenames.push( $( this ).data( "page-title" ) );
				} );
			if ( pagenames.length ) {
				cb.call( this, pagenames );
			}
		},
		clickAction: function ( cont, cb ) {
			var pagename = $( "input[type=\"checkbox\"]", cont ).data( "page-title" );
			cb.call( this, [ pagename ] );
		},
		buildLink: function ( attr ) {
			var a = $(
				"<a href=\"" + attr.href + "\" title=\"" + attr.title +
				"\" target=\"blank\">" + attr.title + "</a>" );
			if ( attr.click ) {
				a.on( "click", attr.click );
			}
			if ( attr.classname ) {
				a.addClass( attr.classname );
			}
			return $( "<span class=\"tools-redirect_link\">" ).append( a );
		},
		addMethods: function ( $parent, methods ) {
			var self = this,
				$container = $parent.find( "> .tools-redirect_methods" );

			function methodExist( method ) {
				return $container.find(
					"a[href=" + JSON.stringify( method.href ) + "]" ).length > 0;
			}

			if ( $container.length === 0 ) {
				$container = $( "<span class=\"tools-redirect_methods\">" ).appendTo( $parent );
			}

			$.each( methods, function ( idx, method ) {
				if ( !methodExist( method ) ) {
					self.buildLink( method ).appendTo( $container );
				}
			} );
		},
		buildSelection: function ( main, metd, mt, dsab ) {
			var cont = $( "<span>" ),
				sele = $( "<input type=\"checkbox\"/>" ).appendTo( cont );
			this.buildLink( main ).appendTo( cont );
			this.addMethods( cont, metd );
			sele.data( "page-title", mt );
			if ( dsab ) {
				sele.attr( "disabled", true );
			}
			return cont;
		},
		loadView: function ( reload ) {
			var $container = this.tabs.view.cont;
			this.loadTabCont( "view", function () {
				return this.loadRedirect( origPageName, $container, 0 );
			}, reload );
		},
		loadCreate: function ( reload ) {
			this.loadTabCont( "create", function () {
				return this.findRedirect( origPageName );
			}, reload );
		},
		loadRedirect: function ( pagename, container, deep, loaded ) {
			this.loading( container );
			var self = this,
				deferObj = $.Deferred(),
				top = deep ? $( "<dl>" ).appendTo( container ) : container;

			if ( !loaded ) {
				loaded = {};
				loaded[ pagename ] = true;
			}

			function onClickFix( evt ) {
				/* jshint validthis: true */
				var entry = $( this ).parents( "dd, p" ).first();
				evt.preventDefault();
				self.clickAction( entry, self.fix );
			}

			$.ajax( this.buildQuery(
				{ action: "query", prop: "redirects", titles: pagename, rdlimit: "max" } ) )
				.done( function ( data ) {
					self.loaded( container );
					var has_redirect = false,
						desc = $( "p.desc", self.tabs.view.cont ),
						maximumRedirectDepth = mw.config.get( "toolsRedirectMaximumRedirectDepth", 10 );

					$.each( data.query.pages, function ( _, page ) {
						if ( !( "redirects" in page ) ) {
							return;
						}
						$.each( page.redirects, function ( _, rdpage ) {
							var $container,
								isCycleRedirect,
								rdtitle = rdpage.title,
								ultitle = rdtitle.replace( / /g, "_" ),
								baseuri = scriptPath + "/index.php?title=" + encodeURIComponent( ultitle ),
								entry = ( deep ? $( "<dd>" ) : $( "<p>" ) ).appendTo( top ),
								methods = [ {
									href: baseuri + "&action=edit",
									title: self.msg.rediedit
								} ];
							isCycleRedirect = rdtitle in loaded;
							loaded[ rdtitle ] = true;
							if ( !isCycleRedirect && deep ) {
								methods.push( {
									href: "#fix-redirect",
									title: self.msg.tabviewfix,
									click: onClickFix
								} );
							}
							$container = self.buildSelection(
								{ href: baseuri + "&redirect=no", title: rdtitle },
								methods, ultitle, !deep ).appendTo( entry );
							if ( isCycleRedirect ) {
								$container.append(
									"<span class=\"error\">" + self.msg.errcycleredirect + "</span>" );
							} else if ( deep < maximumRedirectDepth ) {
								deferObj.done( function () {
									return self.loadRedirect( rdtitle, entry, deep + 1, loaded );
								} );
							}
							has_redirect = true;
						} );
					} );

					if ( has_redirect && deep === 1 ) {
						self.addMethods( desc, [ {
							href: "#select-all",
							title: self.msg.selectall,
							click: function ( evt ) {
								evt.preventDefault();
								self.selectAll( self.tabs.view.cont );
							}
						}, {
							href: "#select-inverse",
							title: self.msg.selectinverse,
							click: function ( evt ) {
								evt.preventDefault();
								self.selectInverse( self.tabs.view.cont );
							}
						}, {
							href: "#fix-selected",
							title: self.msg.tabviewfix,
							click: function ( evt ) {
								evt.preventDefault();
								self.selectAction( self.tabs.view.cont, self.fix );
							}
						} ] );
					}

					if ( has_redirect ) {
						deferObj.resolveWith( self );
					} else {
						deferObj.rejectWith( self );
					}

				} );

			return deferObj.promise();
		},
		findVariants: function ( pagename, titles ) {
			var self = this,
				suffixReg = /^.+?( \(.+?\))$/,
				retTitles = [],
				deferreds = [],
				simpAndTrad = { "zh-hans": true, "zh-hant": true };
			$.each( this.variants, function ( _, variant ) {
				var xhr = $.ajax( self.buildQuery( {
					action: "parse",
					page: pagename,
					prop: "displaytitle",
					variant: variant
				} ) )
					.then( function ( data ) {
						var title = fixNamespace( data.parse.displaytitle );
						if ( variant in simpAndTrad ) {
							mw.toolsRedirect.setRedirectTextSuffix(
								title, "\n{{簡繁重定向}}", SUFFIX_APPEND );
						}
						return title;
					} );
				if ( isCategory ) {
					xhr = xhr.then( function ( origTitle ) {
						return $.ajax( self.buildQuery( {
							action: "parse",
							text: pagename,
							prop: "text",
							variant: variant
						} ) )
							.then( function ( data ) {
								var tmpTitle = $( data.parse.text[ "*" ] )
									.text().replace( /(^\s*|\s*$)/g, "" );
								// should not create redirect categories
								// if the conversion is already in global table,
								// or it will mess up a lot
								_redirectExcludes[ tmpTitle ] = true;
								return origTitle;
							} );
					} );
				}
				deferreds.push( xhr );
			} );
			return $.when.apply( $, deferreds )
				.then( function () {
					var suffixes = [];

					$.each( arguments, function () {
						var suffix,
							title = this;

						// find title suffix,
						// for example " (济南市)" to "市中区 (济南市)"
						suffix = suffixReg.exec( title );
						if ( suffix && suffix.length === 2 ) {
							suffix = suffix[ 1 ];
						} else {
							suffix = "";
						}

						retTitles.push( title );
						suffixes.push( suffix );

					} );

					// append suffixes
					$.each( $.uniqueSort( suffixes ), function ( _, suffix ) {
						$.merge( retTitles, $.map( titles, function ( title ) {
							title = fixNamespace( title );
							return suffixReg.test( title ) ? title : title + suffix;
						} ) );
					} );

					return self.findNotExists( $.uniqueSort( retTitles ) );
				} );
		},

		findNotExists: function ( titles ) {
			var self = this,
				deferreds = [],
				alltitles = [],
				excludes = [ "用字模式" ];
			titles = titles.join( "|" );

			$.each( [ "zh-hans", "zh-hant" ], function ( idx, variant ) {
				deferreds.push( $.ajax( self.buildQuery(
					{ action: "parse", text: titles, prop: "text", variant: variant } ) ) );
			} );

			return $.when.apply( $, deferreds )
				.then( function () {
					$.each( arguments, function () {
						alltitles = alltitles.concat(
							$( this[ 0 ].parse.text[ "*" ] )
								.text().replace( /(^\s*|\s*$)/g, "" ).split( "|" )
						);
					} );
					alltitles = alltitles.filter( function ( v, i, arr ) {
						return arr.indexOf( v ) === i;
					} );
					alltitles = alltitles.join( "|" );
					return $.ajax( self.buildQuery( {
						action: "query",
						prop: "info",
						titles: alltitles
					} ) )
						.then( function ( data ) {
							titles = [];
							$.each( data.query.pages, function ( pageid, page ) {
								var title = page.title;
								if ( pageid < 0 && excludes.indexOf( title ) === -1 ) {

									if ( title in _redirectExcludes ) {
										// exclude special titles
										return;
									}

									titles.push( title );

									if ( isCategory ) {
										var target = origPageName.replace( /^Category:/, "" );
										mw.toolsRedirect.setRedirectTextSuffix(
											title,
											"\n{{分类重定向|$1}}".replace( "$1", target )
										);
									}

									// only set default suffix
									mw.toolsRedirect.setRedirectTextSuffix(
										title, "\n{{別名重定向}}", SUFFIX_SETDEFAULT );
								}
							} );
							return titles;
						} );
				} );
		},

		findRedirect: function ( pagename ) {
			var self = this,
				titles = [],
				frcDeferreds = [],
				container = this.tabs.create.cont,
				$content = $( "#mw-content-text > div.mw-parser-output" ),
				deferObj = $.Deferred();
			this.loading( container );

			$.each( _findRedirectCallbacks, function ( _, callback ) {
				var ret = callback( pagename, $content, titles );
				if ( typeof ret === "string" ) {
					titles.push( ret );
				} else if ( "done" in ret ) {
					// is Deferred
					frcDeferreds.push( ret );
				} else {
					$.merge( titles, ret );
				}
			} );

			// remove all empty titles
			titles = $.map( titles, function ( title ) {
				return title || null;
			} );

			function onClickCreate( evt ) {
				/* jshint validthis: true */
				var entry = $( this ).parents( "p:first" );
				evt.preventDefault();
				self.clickAction( entry, self.create );
			}

			// handles the deferred callbacks
			$.when.apply( $, frcDeferreds )
				.then( function () {
					$.each( arguments, function ( _, ret ) {
						if ( typeof ret === "string" ) {
							titles.push( ret );
						} else {
							$.merge( titles, ret );
						}
					} );
					return self.findVariants( pagename, titles );
				} )
				.done( function ( titles ) {
				// build HTML
					self.loaded( container );
					$.each( titles, function ( _, title ) {
						var ultitle = title.replace( " ", "_" ),
							baseuri = scriptPath + "/index.php?title=" + encodeURIComponent( ultitle ),
							entry = $( "<p>" ).appendTo( container );
						self.buildSelection(
							{
								href: baseuri + "&action=edit&redlink=1",
								title: title,
								classname: "new"
							},
							[ {
								href: "#create-redirect",
								title: self.msg.tabcreatetitle,
								click: onClickCreate
							} ],
							ultitle, false
						).appendTo( entry );
					} );
					var desc = $( "p.desc", container );
					if ( titles.length > 0 ) {
						self
							.addMethods( desc, [ {
								href: "#select-all",
								title: self.msg.selectall,
								click: function ( evt ) {
									evt.preventDefault();
									self.selectAll( container );
								}
							}, {
								href: "#select-inverse",
								title: self.msg.selectinverse,
								click: function ( evt ) {
									evt.preventDefault();
									self.selectInverse( container );
								}
							}, {
								href: "#create-selected",
								title: self.msg.tabcreatetitle,
								click: function ( evt ) {
									evt.preventDefault();
									self.selectAction( container, self.create );
								}
							} ] );
						deferObj.resolveWith( self, [ titles ] );
					} else {
						deferObj.rejectWith( self, [ titles ] );
					}
				} );

			return deferObj.promise();
		},
		buildQuery: function ( data ) {
			var query = { url: scriptPath + "/api.php", dataType: "json", type: "POST" };
			query.data = data;
			query.data.format = "json";
			return query;
		}
	};

	$.when(
		mw.loader.getScript( "/w/index.php?title=MediaWiki:Gadget-ToolsRedirect-msg-" + wgUVS( "zh-hans", "zh-hant" ) + ".js&action=raw&ctype=text/javascript" ),
		$.ready
	).done( function () {
		_TR.msg = window.tools_redirect_msg;
		_TR.init();
	} );
}( jQuery ) );
// </nowiki>