User:Shizhao/tools-redirect.js

var TR = {
  msg: tools_redirect_msg,
  tabselem: null,
  tagselem: null,
  variants: ['zh-cn', 'zh-hk', 'zh-sg', 'zh-tw'],
  button: function( click ) {
    var btn = zh$j( '<li id="ca-redirect">' + '<a title="' + TR.msg.btndesc +
      '"><span>' + TR.msg.btntitle + '</span></a></li>' );
    btn.click( click );
    zh$j( 'li#ca-history' ).after( btn );
  },
  dialog: function() {
    var dlg = zh$j( '<div class="dialog-redirect" title="' + TR.msg.dlgtitle + '"></div>' ).dialog( {
      bgiframe: true, resizable: false, modal: true, width: 600 } );
    TR.tabselem = zh$j( '<div class="tab-redirect"></div>' ).appendTo( dlg );
    TR.tagselem = zh$j( '<ul/>' ).appendTo( TR.tabselem );
    TR.addTabs();
    TR.tabselem.tabs();
  },
  addTabs: function() {
    for ( var kname in TR.tabs ) {
      if ( typeof TR.tabs[kname] === 'function' ) {
        TR.tabs[kname] = TR.tabs[kname]();
      }
      var tab = TR.tabs[kname];
      TR.tagselem.append( tab.tag );
      TR.tabselem.append( tab.cont );
    }
    // default tab, autoload when dialog initiate
    TR.loadView();
  },
  createTab: function( tabname, tabtitle, callback ) {
    var tag = zh$j( '<li><a href="#tab-' + tabname + '">' + tabtitle + '</a></li>' );
    var cont = zh$j( '<div id="tab-' + tabname + '"/>' );
    zh$j( 'a', tag ).click(
      function() {
        TR.tabselem.tabs( 'select', '#tab-' + tabname );
        callback();
        return false;
      }
    );
    return { 'tag': tag, 'cont': cont, loaded: false };
  },
  tabs: {
    view: function() {
      return TR.createTab( 'view', TR.msg.tabviewtitle, TR.loadView );
    },
    create: function() {
      return TR.createTab( 'create', TR.msg.tabcreatetitle, TR.loadCreate );
    }
  },
  fix: function( pagenames ) {
    var desc = zh$j( 'p.desc', TR.tabs.view.cont ).text( TR.msg.fixloading );
    zh$j( 'p[class!=desc]', TR.tabs.view.cont ).remove();
    TR.loading( TR.tabs.view.cont );
    TR.bulkEdit( pagenames, TR.msg.fixtext.replace( '$1', wgPageName ),
      TR.msg.fixsummary, function() {
        TR.loaded( TR.tabs.view.cont );
        TR.loadView( true );
      }
    );
  },
  create: function( pagenames ) {
    var desc = zh$j( 'p.desc', TR.tabs.create.cont ).text( TR.msg.createloading );
    zh$j( 'p[class!=desc]', TR.tabs.create.cont ).remove();
    TR.loading( TR.tabs.create.cont );
    TR.bulkEdit( pagenames, TR.msg.createtext.replace( '$1', wgPageName ),
      TR.msg.createsummary, function() {
        TR.loaded( TR.tabs.create.cont );
        TR.tabs.view.loaded = false;
        TR.loadCreate( true );
      }
    );
  },
  bulkEdit: function( titles, text, summary, callback ) {
    titles = titles.join( '|' );
    zh$j.ajax( TR.buildQuery(
      { action: 'query', prop: 'info', 'titles': titles, intoken: 'edit' },
      null,
      function( data ) {
        var pages = data.query.pages;
        var l = 0; var f = 0;
        for( var pageid in pages ) {
          l ++;
        }
        for( var pageid in pages ) {
          page = pages[pageid];
          zh$j.ajax( TR.buildQuery(
            { action: 'edit', title: page.title, token: page.edittoken,
              'text': text, 'summary': summary }, null,
            function() {
              f ++;
              if ( l == f ) {
                callback();
              }
            }
          ) );
        }
      }
    ) );
  },
  reloadTabCont: function( tabname, callback ) {
    var tab = TR.tabs[tabname];
    tab.loaded = false;
    TR.loadTabCont( tabname, callback );
  },
  loadTabCont: function( tabname, callback, reload ) {
    var tab = TR.tabs[tabname];
    if ( reload ) tab.loaded = false;
    if ( !tab.loaded ) {
      tab.cont.html( '' );
      var desc = zh$j( '<p class="desc">' +
        TR.msg.rediloading + '</p>' ).appendTo( tab.cont );
      callback( function( success ) {
        if ( success ) desc.text( TR.msg['tab' + tabname + 'desc'] );
        else desc.text( TR.msg['tab' + tabname + 'notfound'] );
      } );
      tab.loaded = true;
    }
  },
  loading: function( container ) {
    if ( container.attr( 'tagName' ).toLowerCase() == 'span' ) {
      container.addClass( 'loading' );
    } else if ( zh$j( 'span.loading', container ).length == 0 ) {
      zh$j( '<span class="loading">&nbsp;</span>' ).appendTo( container );
    }
  },
  loaded: function( container ) {
    if ( container.attr( 'tagName' ).toLowerCase() == 'span' ) {
      container.removeClass( 'loading' );
    } else {
      zh$j( 'span.loading', container ).remove();
    }
  },
  selectAll: function( cont ) {
    zh$j( 'input[type=checkbox][disabled!=true]', cont )
      .prop('checked', true );
  },
  selectInverse: function( cont ) {
    zh$j( 'input[type=checkbox][disabled!=true]', cont )
      .each( function() {
        var e = zh$j( this );
        e.attr( 'checked', !e.attr( 'checked' ) );
      } ); 
  },
  selectAction: function( cont, cb ) {
    var pagenames = [];
    zh$j( 'input[type=checkbox][checked=true]', cont )
      .each( function() {
        pagenames.push( zh$j( '.meta-title', zh$j( this ).parent() ).text() );
      } );
    if ( pagenames.length )
      cb( pagenames );
  },
  clickAction: function( cont, cb ) {
    var pagename = zh$j( '.meta-title', cont ).text();
    cb( [pagename] );
  },
  buildLink: function( attr ) {
    var a = zh$j( '<a href="' + attr.href + '" title="' + attr.title +
      '" target="blank">' + attr.title + '</a>' );
    if ( attr.click )
      a.click( attr.click );
    if ( attr.classname )
      a.addClass( attr.classname );
    return a;
  },
  buildMethods: function( metd ) {
    var cont = zh$j( '<span/>' );
    var l = metd ? metd.length : 0;
    cont.append( l ? ' (' : '' );
    for ( var i = 0; i < l; i ++ ) {
      TR.buildLink( metd[i] ).appendTo( cont );
      if ( i + 1 < l )
        cont.append( '<span class="gap">|</span>' );
    }
    cont.append( l ? ')' : '' );
    return cont;    
  },
  buildSelection: function( main, metd, mt, dsab ) {
    var cont = zh$j( '<span/>' );
    var sele = zh$j( '<input type="checkbox"/>' ).appendTo( cont );
    TR.buildLink( main).appendTo( cont );
    TR.buildMethods( metd ).appendTo( cont );
    cont.append( '<span class="meta-title">' + mt + '</span>' );
    if ( dsab )
      sele.prop('disabled', true );
    return cont;
  },
  loadView: function( reload ) {
    TR.loadTabCont( 'view', function( after ) {
      TR.loadRedirect( wgPageName, TR.tabs.view.cont, 0, after );
    }, reload );
  },
  loadCreate: function( reload ) {
    TR.loadTabCont( 'create', function( after ) {
      TR.findRedirect( wgPageName, after );
    }, reload );
  },
  loadRedirect: function( pagename, container, deep, after ) {
    TR.loading( container );
    var top = deep ? zh$j( '<dl/>' ).appendTo( container ) : container;
    zh$j.ajax( TR.buildQuery(
      { action: 'query', list: 'backlinks', bltitle: pagename, blfilterredir: 'redirects' },
      null, function( data ) {
        TR.loaded( container );
        var l = data.query.backlinks.length;
        var desc = zh$j( 'p.desc', TR.tabs.view.cont );
        for ( var i = 0; i < l; i ++ ) {
          var link = data.query.backlinks[i];
          if ( link.title ) {
            var ultitle = link.title.replace( ' ', '_' );
            var baseuri = encodeURI( wgScriptPath + '/index.php?title=' + ultitle );
            var entry = ( deep ? zh$j( '<dd/>' ) : zh$j( '<p/>' ) ).appendTo( top );
            var methods = [ {href: baseuri + '&action=edit',
                             title: TR.msg.rediedit } ];
            if ( deep ) {
              methods.push(
                { href: '#',
                  title: TR.msg.tabviewfix,
                  click: function() {
                    TR.clickAction( entry, TR.fix );
                    return false; }
                } );
            }
            TR.buildSelection( { href: baseuri + '&redirect=no', title: link.title },
              methods, ultitle, !deep ).appendTo( entry );
            TR.loadRedirect( link.title, entry, deep + 1 );
          }
        }
        if ( after ) {
          after( l );
        } else if ( l && zh$j( 'a', desc ).length == 0 ) {
          TR.buildMethods(
            [ { href: '#',
                title: TR.msg.selectall,
                click: function() {
                  TR.selectAll( TR.tabs.view.cont );
                  return false; }
              },
              { href: '#',
                title: TR.msg.selectinverse,
                click: function() {
                  TR.selectInverse( TR.tabs.view.cont );
                  return false; }
              },
              { href: '#',
                title: TR.msg.tabviewfix,
                click: function() { 
                  TR.selectAction( TR.tabs.view.cont, TR.fix );
                  return false; }
              } ] ).appendTo( desc );
        }
      } ) );
  },
  findVariants: function( pagename, titles, callback ) {
    var pc = 0;
    var l = TR.variants.length;
    for ( var i = 0; i < l; i ++ ) {
      zh$j.ajax( TR.buildQuery( {action: 'parse', page: pagename, prop: 'displaytitle', variant: TR.variants[i] },
      null, function( data ) {
        titles.push( data.parse.displaytitle );
        pc ++;
        if ( pc == l ) {
          callback( titles );
        }
      } ) );
    }
  },
  findNotExists: function( titles, callback ) {
    var titles = titles.join('|');
    var alltitles = [];
    var v = ['zh-hans', 'zh-hant'];
    var t = 0;
    var excludes = [ '用字模式' ];
    for( var i = 0; i < 2; i ++ ) {
      zh$j.ajax( TR.buildQuery( { action: 'parse', text: titles, prop: 'text', variant: v[i] },
      null, function( data ) {
        alltitles = alltitles.concat( zh$j( data.parse.text['*'] ).text().split( '|' ) );
        t ++;
        if ( t == 2 ) {
          alltitles = alltitles.join( '|' );
          zh$j.ajax( TR.buildQuery( {action: 'query', prop: 'info', 'titles': alltitles }, null,
            function( data ) {
              titles = [];
              var pages = data.query.pages;
              for ( var pageid in pages ) {
                var title = pages[pageid].title;
                if ( pageid < 0 && zh$j.inArray( title, excludes ) == -1 ) {
                  titles.push( title );
                }
              }
              callback( titles );
            }
          ) );
        }
      } ) );
    }
  },
  findRedirect: function( pagename, after ) {
    var container = TR.tabs.create.cont;
    TR.loading( container );
    var titles = Array();
    zh$j( 'div#bodyContent p i' ).each( function() {
      titles.push( zh$j( this ).text() ); } );
    TR.findVariants( pagename, titles, function( tt ) {
      TR.findNotExists( tt, function( t ) {
        TR.loaded( container );
        l = t.length;
        for ( var i = 0; i < l; i ++ ) {
          var title = t[i];
          var ultitle = title.replace( ' ', '_' );
          var baseuri = encodeURI( wgScriptPath + '/index.php?title=' + ultitle );
          var entry = zh$j( '<p/>' ).appendTo( container );
          TR.buildSelection(
            { href: baseuri + '&action=edit&redlink=1',
              'title': title,
              classname: 'new' },
            [ { href: '#',
                title: TR.msg.tabcreatetitle,
                click: function() {
                    TR.clickAction( entry, TR.create );
                    return false; }
              } ],
            ultitle, false ).appendTo( entry );
        }
        var desc = zh$j( 'p.desc', container );
        if ( after )
          after( l );
        if ( l ) {
          TR.buildMethods( 
            [ { href: '#',
                title: TR.msg.selectall,
                click: function() {
                  TR.selectAll( container );
                  return false; }
              },
              { href: '#',
                title: TR.msg.selectinverse,
                click: function() {
                  TR.selectInverse( container );
                  return false; }
              },
              { href: '#',
                title: TR.msg.tabcreatetitle,
                click: function() { 
                  TR.selectAction( container, TR.create );
                  return false; }
              }
            ] ).appendTo( desc );
          }
      } );
    } );
  },
  buildQuery: function( data, before, after ) {
    var query = { url: wgScriptPath + '/api.php', dataType: 'json', type: 'POST' };
    query.data = data;
    query.data.format = 'json';
    if ( before ) query.beforeSend = before;
    if ( after ) query.success = after;
    return query;
  }
}

$( function() {
  TR.button( TR.dialog );
});