The Tor Browser / file revision

 /*

  * sidebar.js

  * ~~~~~~~~~~

  *

  * This script makes the Sphinx sidebar collapsible.

  *

  * .sphinxsidebar contains .sphinxsidebarwrapper.  This script adds

  * in .sphixsidebar, after .sphinxsidebarwrapper, the #sidebarbutton

  * used to collapse and expand the sidebar.

  *

  * When the sidebar is collapsed the .sphinxsidebarwrapper is hidden

  * and the width of the sidebar and the margin-left of the document

  * are decreased. When the sidebar is expanded the opposite happens.

  * This script saves a per-browser/per-session cookie used to

  * remember the position of the sidebar among the pages.

  * Once the browser is closed the cookie is deleted and the position

  * reset to the default (expanded).

  *

  * :copyright: Copyright 2007-2010 by the Sphinx team, see AUTHORS.

  * :license: BSD, see LICENSE for details.

  *

  */

 $(function() {

   // global elements used by the functions.

   // the 'sidebarbutton' element is defined as global after its

   // creation, in the add_sidebar_button function

   var bodywrapper = $('.bodywrapper');

   var sidebar = $('.sphinxsidebar');

   var sidebarwrapper = $('.sphinxsidebarwrapper');

   // original margin-left of the bodywrapper and width of the sidebar

   // with the sidebar expanded

   var bw_margin_expanded = bodywrapper.css('margin-left');

   var ssb_width_expanded = sidebar.width();

   // margin-left of the bodywrapper and width of the sidebar

   // with the sidebar collapsed

   var bw_margin_collapsed = '.8em';

   var ssb_width_collapsed = '.8em';

   // colors used by the current theme

   var dark_color = $('.related').css('background-color');

   var light_color = $('.document').css('background-color');

   function sidebar_is_collapsed() {

     return sidebarwrapper.is(':not(:visible)');

   }

   function toggle_sidebar() {

     if (sidebar_is_collapsed())

       expand_sidebar();

     else

       collapse_sidebar();

   }

   function collapse_sidebar() {

     sidebarwrapper.hide();

     sidebar.css('width', ssb_width_collapsed);

     bodywrapper.css('margin-left', bw_margin_collapsed);

     sidebarbutton.css({

         'margin-left': '0',

         'height': bodywrapper.height()

     });

     sidebarbutton.find('span').text('»');

     sidebarbutton.attr('title', _('Expand sidebar'));

     document.cookie = 'sidebar=collapsed';

   }

   function expand_sidebar() {

     bodywrapper.css('margin-left', bw_margin_expanded);

     sidebar.css('width', ssb_width_expanded);

     sidebarwrapper.show();

     sidebarbutton.css({

         'margin-left': ssb_width_expanded-12,

         'height': bodywrapper.height()

     });

     sidebarbutton.find('span').text('«');

     sidebarbutton.attr('title', _('Collapse sidebar'));

     document.cookie = 'sidebar=expanded';

   }

   function add_sidebar_button() {

     sidebarwrapper.css({

         'float': 'left',

         'margin-right': '0',

         'width': ssb_width_expanded - 28

     });

     // create the button

     sidebar.append(

         '<div id="sidebarbutton"><span>&laquo;</span></div>'

     );

     var sidebarbutton = $('#sidebarbutton');

     light_color = sidebarbutton.css('background-color');

     // find the height of the viewport to center the '<<' in the page

     var viewport_height;

     if (window.innerHeight)

  	  viewport_height = window.innerHeight;

     else

 	  viewport_height = $(window).height();

     sidebarbutton.find('span').css({

         'display': 'block',

         'margin-top': (viewport_height - sidebar.position().top - 20) / 2

     });

     sidebarbutton.click(toggle_sidebar);

     sidebarbutton.attr('title', _('Collapse sidebar'));

     sidebarbutton.css({

         'color': '#FFFFFF',

         'border-left': '1px solid ' + dark_color,

         'font-size': '1.2em',

         'cursor': 'pointer',

         'height': bodywrapper.height(),

         'padding-top': '1px',

         'margin-left': ssb_width_expanded - 12

     });

     sidebarbutton.hover(

       function () {

           $(this).css('background-color', dark_color);

       },

       function () {

           $(this).css('background-color', light_color);

       }

     );

   }

   function set_position_from_cookie() {

     if (!document.cookie)

       return;

     var items = document.cookie.split(';');

     for(var k=0; k<items.length; k++) {

       var key_val = items[k].split('=');

       var key = key_val[0];

       if (key == 'sidebar') {

         var value = key_val[1];

         if ((value == 'collapsed') && (!sidebar_is_collapsed()))

           collapse_sidebar();

         else if ((value == 'expanded') && (sidebar_is_collapsed()))

           expand_sidebar();

       }

     }

   }

   add_sidebar_button();

   var sidebarbutton = $('#sidebarbutton');

   set_position_from_cookie();

 });