adamstark@23: // Search script generated by doxygen
adamstark@23: // Copyright (C) 2009 by Dimitri van Heesch.
adamstark@23: 
adamstark@23: // The code in this file is loosly based on main.js, part of Natural Docs,
adamstark@23: // which is Copyright (C) 2003-2008 Greg Valure
adamstark@23: // Natural Docs is licensed under the GPL.
adamstark@23: 
adamstark@23: var indexSectionsWithContent =
adamstark@23: {
adamstark@28:   0: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011101101000001100101010000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
adamstark@23:   1: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
adamstark@23:   2: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
adamstark@28:   3: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011101101000001100101000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
adamstark@24:   4: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
adamstark@24:   5: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
adamstark@23: };
adamstark@23: 
adamstark@23: var indexSectionNames =
adamstark@23: {
adamstark@23:   0: "all",
adamstark@23:   1: "classes",
adamstark@23:   2: "files",
adamstark@23:   3: "functions",
adamstark@24:   4: "enums",
adamstark@24:   5: "pages"
adamstark@23: };
adamstark@23: 
adamstark@23: function convertToId(search)
adamstark@23: {
adamstark@23:   var result = '';
adamstark@23:   for (i=0;i<search.length;i++)
adamstark@23:   {
adamstark@23:     var c = search.charAt(i);
adamstark@23:     var cn = c.charCodeAt(0);
adamstark@23:     if (c.match(/[a-z0-9]/))
adamstark@23:     {
adamstark@23:       result+=c;
adamstark@23:     }
adamstark@23:     else if (cn<16) 
adamstark@23:     {
adamstark@23:       result+="_0"+cn.toString(16);
adamstark@23:     }
adamstark@23:     else 
adamstark@23:     {
adamstark@23:       result+="_"+cn.toString(16);
adamstark@23:     }
adamstark@23:   }
adamstark@23:   return result;
adamstark@23: }
adamstark@23: 
adamstark@23: function getXPos(item)
adamstark@23: {
adamstark@23:   var x = 0;
adamstark@23:   if (item.offsetWidth)
adamstark@23:   {
adamstark@23:     while (item && item!=document.body)
adamstark@23:     {
adamstark@23:       x   += item.offsetLeft;
adamstark@23:       item = item.offsetParent;
adamstark@23:     }
adamstark@23:   }
adamstark@23:   return x;
adamstark@23: }
adamstark@23: 
adamstark@23: function getYPos(item)
adamstark@23: {
adamstark@23:   var y = 0;
adamstark@23:   if (item.offsetWidth)
adamstark@23:   {
adamstark@23:      while (item && item!=document.body)
adamstark@23:      {
adamstark@23:        y   += item.offsetTop;
adamstark@23:        item = item.offsetParent;
adamstark@23:      }
adamstark@23:   }
adamstark@23:   return y;
adamstark@23: }
adamstark@23: 
adamstark@23: /* A class handling everything associated with the search panel.
adamstark@23: 
adamstark@23:    Parameters:
adamstark@23:    name - The name of the global variable that will be 
adamstark@23:           storing this instance.  Is needed to be able to set timeouts.
adamstark@23:    resultPath - path to use for external files
adamstark@23: */
adamstark@23: function SearchBox(name, resultsPath, inFrame, label)
adamstark@23: {
adamstark@23:   if (!name || !resultsPath) {  alert("Missing parameters to SearchBox."); }
adamstark@23:    
adamstark@23:   // ---------- Instance variables
adamstark@23:   this.name                  = name;
adamstark@23:   this.resultsPath           = resultsPath;
adamstark@23:   this.keyTimeout            = 0;
adamstark@23:   this.keyTimeoutLength      = 500;
adamstark@23:   this.closeSelectionTimeout = 300;
adamstark@23:   this.lastSearchValue       = "";
adamstark@23:   this.lastResultsPage       = "";
adamstark@23:   this.hideTimeout           = 0;
adamstark@23:   this.searchIndex           = 0;
adamstark@23:   this.searchActive          = false;
adamstark@23:   this.insideFrame           = inFrame;
adamstark@23:   this.searchLabel           = label;
adamstark@23: 
adamstark@23:   // ----------- DOM Elements
adamstark@23: 
adamstark@23:   this.DOMSearchField = function()
adamstark@23:   {  return document.getElementById("MSearchField");  }
adamstark@23: 
adamstark@23:   this.DOMSearchSelect = function()
adamstark@23:   {  return document.getElementById("MSearchSelect");  }
adamstark@23: 
adamstark@23:   this.DOMSearchSelectWindow = function()
adamstark@23:   {  return document.getElementById("MSearchSelectWindow");  }
adamstark@23: 
adamstark@23:   this.DOMPopupSearchResults = function()
adamstark@23:   {  return document.getElementById("MSearchResults");  }
adamstark@23: 
adamstark@23:   this.DOMPopupSearchResultsWindow = function()
adamstark@23:   {  return document.getElementById("MSearchResultsWindow");  }
adamstark@23: 
adamstark@23:   this.DOMSearchClose = function()
adamstark@23:   {  return document.getElementById("MSearchClose"); }
adamstark@23: 
adamstark@23:   this.DOMSearchBox = function()
adamstark@23:   {  return document.getElementById("MSearchBox");  }
adamstark@23: 
adamstark@23:   // ------------ Event Handlers
adamstark@23: 
adamstark@23:   // Called when focus is added or removed from the search field.
adamstark@23:   this.OnSearchFieldFocus = function(isActive)
adamstark@23:   {
adamstark@23:     this.Activate(isActive);
adamstark@23:   }
adamstark@23: 
adamstark@23:   this.OnSearchSelectShow = function()
adamstark@23:   {
adamstark@23:     var searchSelectWindow = this.DOMSearchSelectWindow();
adamstark@23:     var searchField        = this.DOMSearchSelect();
adamstark@23: 
adamstark@23:     if (this.insideFrame)
adamstark@23:     {
adamstark@23:       var left = getXPos(searchField);
adamstark@23:       var top  = getYPos(searchField);
adamstark@23:       left += searchField.offsetWidth + 6;
adamstark@23:       top += searchField.offsetHeight;
adamstark@23: 
adamstark@23:       // show search selection popup
adamstark@23:       searchSelectWindow.style.display='block';
adamstark@23:       left -= searchSelectWindow.offsetWidth;
adamstark@23:       searchSelectWindow.style.left =  left + 'px';
adamstark@23:       searchSelectWindow.style.top  =  top  + 'px';
adamstark@23:     }
adamstark@23:     else
adamstark@23:     {
adamstark@23:       var left = getXPos(searchField);
adamstark@23:       var top  = getYPos(searchField);
adamstark@23:       top += searchField.offsetHeight;
adamstark@23: 
adamstark@23:       // show search selection popup
adamstark@23:       searchSelectWindow.style.display='block';
adamstark@23:       searchSelectWindow.style.left =  left + 'px';
adamstark@23:       searchSelectWindow.style.top  =  top  + 'px';
adamstark@23:     }
adamstark@23: 
adamstark@23:     // stop selection hide timer
adamstark@23:     if (this.hideTimeout) 
adamstark@23:     {
adamstark@23:       clearTimeout(this.hideTimeout);
adamstark@23:       this.hideTimeout=0;
adamstark@23:     }
adamstark@23:     return false; // to avoid "image drag" default event
adamstark@23:   }
adamstark@23: 
adamstark@23:   this.OnSearchSelectHide = function()
adamstark@23:   {
adamstark@23:     this.hideTimeout = setTimeout(this.name +".CloseSelectionWindow()",
adamstark@23:                                   this.closeSelectionTimeout);
adamstark@23:   }
adamstark@23: 
adamstark@23:   // Called when the content of the search field is changed.
adamstark@23:   this.OnSearchFieldChange = function(evt)
adamstark@23:   {
adamstark@23:     if (this.keyTimeout) // kill running timer
adamstark@23:     {
adamstark@23:       clearTimeout(this.keyTimeout);
adamstark@23:       this.keyTimeout = 0;
adamstark@23:     }
adamstark@23: 
adamstark@23:     var e  = (evt) ? evt : window.event; // for IE
adamstark@23:     if (e.keyCode==40 || e.keyCode==13)
adamstark@23:     {
adamstark@23:       if (e.shiftKey==1)
adamstark@23:       {
adamstark@23:         this.OnSearchSelectShow();
adamstark@23:         var win=this.DOMSearchSelectWindow(); 
adamstark@23:         for (i=0;i<win.childNodes.length;i++)
adamstark@23:         {
adamstark@23:           var child = win.childNodes[i]; // get span within a
adamstark@23:           if (child.className=='SelectItem')
adamstark@23:           {
adamstark@23:             child.focus();
adamstark@23:             return;
adamstark@23:           }
adamstark@23:         }
adamstark@23:         return;
adamstark@23:       }
adamstark@23:       else if (window.frames.MSearchResults.searchResults)
adamstark@23:       {
adamstark@23:         var elem = window.frames.MSearchResults.searchResults.NavNext(0);
adamstark@23:         if (elem) elem.focus();
adamstark@23:       }
adamstark@23:     }
adamstark@23:     else if (e.keyCode==27) // Escape out of the search field
adamstark@23:     {
adamstark@23:       this.DOMSearchField().blur();
adamstark@23:       this.DOMPopupSearchResultsWindow().style.display = 'none';
adamstark@23:       this.DOMSearchClose().style.display = 'none';
adamstark@23:       this.lastSearchValue = '';
adamstark@23:       this.Activate(false);
adamstark@23:       return;
adamstark@23:     }
adamstark@23: 
adamstark@23:     // strip whitespaces
adamstark@23:     var searchValue = this.DOMSearchField().value.replace(/ +/g, "");
adamstark@23: 
adamstark@23:     if (searchValue != this.lastSearchValue) // search value has changed
adamstark@23:     {
adamstark@23:       if (searchValue != "") // non-empty search
adamstark@23:       {
adamstark@23:         // set timer for search update
adamstark@23:         this.keyTimeout = setTimeout(this.name + '.Search()',
adamstark@23:                                      this.keyTimeoutLength);
adamstark@23:       }
adamstark@23:       else // empty search field
adamstark@23:       {
adamstark@23:         this.DOMPopupSearchResultsWindow().style.display = 'none';
adamstark@23:         this.DOMSearchClose().style.display = 'none';
adamstark@23:         this.lastSearchValue = '';
adamstark@23:       }
adamstark@23:     }
adamstark@23:   }
adamstark@23: 
adamstark@23:   this.SelectItemCount = function(id)
adamstark@23:   {
adamstark@23:     var count=0;
adamstark@23:     var win=this.DOMSearchSelectWindow(); 
adamstark@23:     for (i=0;i<win.childNodes.length;i++)
adamstark@23:     {
adamstark@23:       var child = win.childNodes[i]; // get span within a
adamstark@23:       if (child.className=='SelectItem')
adamstark@23:       {
adamstark@23:         count++;
adamstark@23:       }
adamstark@23:     }
adamstark@23:     return count;
adamstark@23:   }
adamstark@23: 
adamstark@23:   this.SelectItemSet = function(id)
adamstark@23:   {
adamstark@23:     var i,j=0;
adamstark@23:     var win=this.DOMSearchSelectWindow(); 
adamstark@23:     for (i=0;i<win.childNodes.length;i++)
adamstark@23:     {
adamstark@23:       var child = win.childNodes[i]; // get span within a
adamstark@23:       if (child.className=='SelectItem')
adamstark@23:       {
adamstark@23:         var node = child.firstChild;
adamstark@23:         if (j==id)
adamstark@23:         {
adamstark@23:           node.innerHTML='&#8226;';
adamstark@23:         }
adamstark@23:         else
adamstark@23:         {
adamstark@23:           node.innerHTML='&#160;';
adamstark@23:         }
adamstark@23:         j++;
adamstark@23:       }
adamstark@23:     }
adamstark@23:   }
adamstark@23: 
adamstark@23:   // Called when an search filter selection is made.
adamstark@23:   // set item with index id as the active item
adamstark@23:   this.OnSelectItem = function(id)
adamstark@23:   {
adamstark@23:     this.searchIndex = id;
adamstark@23:     this.SelectItemSet(id);
adamstark@23:     var searchValue = this.DOMSearchField().value.replace(/ +/g, "");
adamstark@23:     if (searchValue!="" && this.searchActive) // something was found -> do a search
adamstark@23:     {
adamstark@23:       this.Search();
adamstark@23:     }
adamstark@23:   }
adamstark@23: 
adamstark@23:   this.OnSearchSelectKey = function(evt)
adamstark@23:   {
adamstark@23:     var e = (evt) ? evt : window.event; // for IE
adamstark@23:     if (e.keyCode==40 && this.searchIndex<this.SelectItemCount()) // Down
adamstark@23:     {
adamstark@23:       this.searchIndex++;
adamstark@23:       this.OnSelectItem(this.searchIndex);
adamstark@23:     }
adamstark@23:     else if (e.keyCode==38 && this.searchIndex>0) // Up
adamstark@23:     {
adamstark@23:       this.searchIndex--;
adamstark@23:       this.OnSelectItem(this.searchIndex);
adamstark@23:     }
adamstark@23:     else if (e.keyCode==13 || e.keyCode==27)
adamstark@23:     {
adamstark@23:       this.OnSelectItem(this.searchIndex);
adamstark@23:       this.CloseSelectionWindow();
adamstark@23:       this.DOMSearchField().focus();
adamstark@23:     }
adamstark@23:     return false;
adamstark@23:   }
adamstark@23: 
adamstark@23:   // --------- Actions
adamstark@23: 
adamstark@23:   // Closes the results window.
adamstark@23:   this.CloseResultsWindow = function()
adamstark@23:   {
adamstark@23:     this.DOMPopupSearchResultsWindow().style.display = 'none';
adamstark@23:     this.DOMSearchClose().style.display = 'none';
adamstark@23:     this.Activate(false);
adamstark@23:   }
adamstark@23: 
adamstark@23:   this.CloseSelectionWindow = function()
adamstark@23:   {
adamstark@23:     this.DOMSearchSelectWindow().style.display = 'none';
adamstark@23:   }
adamstark@23: 
adamstark@23:   // Performs a search.
adamstark@23:   this.Search = function()
adamstark@23:   {
adamstark@23:     this.keyTimeout = 0;
adamstark@23: 
adamstark@23:     // strip leading whitespace
adamstark@23:     var searchValue = this.DOMSearchField().value.replace(/^ +/, "");
adamstark@23: 
adamstark@23:     var code = searchValue.toLowerCase().charCodeAt(0);
adamstark@23:     var hexCode;
adamstark@23:     if (code<16) 
adamstark@23:     {
adamstark@23:       hexCode="0"+code.toString(16);
adamstark@23:     }
adamstark@23:     else 
adamstark@23:     {
adamstark@23:       hexCode=code.toString(16);
adamstark@23:     }
adamstark@23: 
adamstark@23:     var resultsPage;
adamstark@23:     var resultsPageWithSearch;
adamstark@23:     var hasResultsPage;
adamstark@23: 
adamstark@23:     if (indexSectionsWithContent[this.searchIndex].charAt(code) == '1')
adamstark@23:     {
adamstark@23:        resultsPage = this.resultsPath + '/' + indexSectionNames[this.searchIndex] + '_' + hexCode + '.html';
adamstark@23:        resultsPageWithSearch = resultsPage+'?'+escape(searchValue);
adamstark@23:        hasResultsPage = true;
adamstark@23:     }
adamstark@23:     else // nothing available for this search term
adamstark@23:     {
adamstark@23:        resultsPage = this.resultsPath + '/nomatches.html';
adamstark@23:        resultsPageWithSearch = resultsPage;
adamstark@23:        hasResultsPage = false;
adamstark@23:     }
adamstark@23: 
adamstark@23:     window.frames.MSearchResults.location = resultsPageWithSearch;  
adamstark@23:     var domPopupSearchResultsWindow = this.DOMPopupSearchResultsWindow();
adamstark@23: 
adamstark@23:     if (domPopupSearchResultsWindow.style.display!='block')
adamstark@23:     {
adamstark@23:        var domSearchBox = this.DOMSearchBox();
adamstark@23:        this.DOMSearchClose().style.display = 'inline';
adamstark@23:        if (this.insideFrame)
adamstark@23:        {
adamstark@23:          var domPopupSearchResults = this.DOMPopupSearchResults();
adamstark@23:          domPopupSearchResultsWindow.style.position = 'relative';
adamstark@23:          domPopupSearchResultsWindow.style.display  = 'block';
adamstark@23:          var width = document.body.clientWidth - 8; // the -8 is for IE :-(
adamstark@23:          domPopupSearchResultsWindow.style.width    = width + 'px';
adamstark@23:          domPopupSearchResults.style.width          = width + 'px';
adamstark@23:        }
adamstark@23:        else
adamstark@23:        {
adamstark@23:          var domPopupSearchResults = this.DOMPopupSearchResults();
adamstark@23:          var left = getXPos(domSearchBox) + 150; // domSearchBox.offsetWidth;
adamstark@23:          var top  = getYPos(domSearchBox) + 20;  // domSearchBox.offsetHeight + 1;
adamstark@23:          domPopupSearchResultsWindow.style.display = 'block';
adamstark@23:          left -= domPopupSearchResults.offsetWidth;
adamstark@23:          domPopupSearchResultsWindow.style.top     = top  + 'px';
adamstark@23:          domPopupSearchResultsWindow.style.left    = left + 'px';
adamstark@23:        }
adamstark@23:     }
adamstark@23: 
adamstark@23:     this.lastSearchValue = searchValue;
adamstark@23:     this.lastResultsPage = resultsPage;
adamstark@23:   }
adamstark@23: 
adamstark@23:   // -------- Activation Functions
adamstark@23: 
adamstark@23:   // Activates or deactivates the search panel, resetting things to 
adamstark@23:   // their default values if necessary. 
adamstark@23:   this.Activate = function(isActive)
adamstark@23:   {
adamstark@23:     if (isActive || // open it
adamstark@23:         this.DOMPopupSearchResultsWindow().style.display == 'block' 
adamstark@23:        )
adamstark@23:     {
adamstark@23:       this.DOMSearchBox().className = 'MSearchBoxActive';
adamstark@23: 
adamstark@23:       var searchField = this.DOMSearchField();
adamstark@23: 
adamstark@23:       if (searchField.value == this.searchLabel) // clear "Search" term upon entry
adamstark@23:       {  
adamstark@23:         searchField.value = '';  
adamstark@23:         this.searchActive = true;
adamstark@23:       }
adamstark@23:     }
adamstark@23:     else if (!isActive) // directly remove the panel
adamstark@23:     {
adamstark@23:       this.DOMSearchBox().className = 'MSearchBoxInactive';
adamstark@23:       this.DOMSearchField().value   = this.searchLabel;
adamstark@23:       this.searchActive             = false;
adamstark@23:       this.lastSearchValue          = ''
adamstark@23:       this.lastResultsPage          = '';
adamstark@23:     }
adamstark@23:   }
adamstark@23: }
adamstark@23: 
adamstark@23: // -----------------------------------------------------------------------
adamstark@23: 
adamstark@23: // The class that handles everything on the search results page.
adamstark@23: function SearchResults(name)
adamstark@23: {
adamstark@23:     // The number of matches from the last run of <Search()>.
adamstark@23:     this.lastMatchCount = 0;
adamstark@23:     this.lastKey = 0;
adamstark@23:     this.repeatOn = false;
adamstark@23: 
adamstark@23:     // Toggles the visibility of the passed element ID.
adamstark@23:     this.FindChildElement = function(id)
adamstark@23:     {
adamstark@23:       var parentElement = document.getElementById(id);
adamstark@23:       var element = parentElement.firstChild;
adamstark@23: 
adamstark@23:       while (element && element!=parentElement)
adamstark@23:       {
adamstark@23:         if (element.nodeName == 'DIV' && element.className == 'SRChildren')
adamstark@23:         {
adamstark@23:           return element;
adamstark@23:         }
adamstark@23: 
adamstark@23:         if (element.nodeName == 'DIV' && element.hasChildNodes())
adamstark@23:         {  
adamstark@23:            element = element.firstChild;  
adamstark@23:         }
adamstark@23:         else if (element.nextSibling)
adamstark@23:         {  
adamstark@23:            element = element.nextSibling;  
adamstark@23:         }
adamstark@23:         else
adamstark@23:         {
adamstark@23:           do
adamstark@23:           {
adamstark@23:             element = element.parentNode;
adamstark@23:           }
adamstark@23:           while (element && element!=parentElement && !element.nextSibling);
adamstark@23: 
adamstark@23:           if (element && element!=parentElement)
adamstark@23:           {  
adamstark@23:             element = element.nextSibling;  
adamstark@23:           }
adamstark@23:         }
adamstark@23:       }
adamstark@23:     }
adamstark@23: 
adamstark@23:     this.Toggle = function(id)
adamstark@23:     {
adamstark@23:       var element = this.FindChildElement(id);
adamstark@23:       if (element)
adamstark@23:       {
adamstark@23:         if (element.style.display == 'block')
adamstark@23:         {
adamstark@23:           element.style.display = 'none';
adamstark@23:         }
adamstark@23:         else
adamstark@23:         {
adamstark@23:           element.style.display = 'block';
adamstark@23:         }
adamstark@23:       }
adamstark@23:     }
adamstark@23: 
adamstark@23:     // Searches for the passed string.  If there is no parameter,
adamstark@23:     // it takes it from the URL query.
adamstark@23:     //
adamstark@23:     // Always returns true, since other documents may try to call it
adamstark@23:     // and that may or may not be possible.
adamstark@23:     this.Search = function(search)
adamstark@23:     {
adamstark@23:       if (!search) // get search word from URL
adamstark@23:       {
adamstark@23:         search = window.location.search;
adamstark@23:         search = search.substring(1);  // Remove the leading '?'
adamstark@23:         search = unescape(search);
adamstark@23:       }
adamstark@23: 
adamstark@23:       search = search.replace(/^ +/, ""); // strip leading spaces
adamstark@23:       search = search.replace(/ +$/, ""); // strip trailing spaces
adamstark@23:       search = search.toLowerCase();
adamstark@23:       search = convertToId(search);
adamstark@23: 
adamstark@23:       var resultRows = document.getElementsByTagName("div");
adamstark@23:       var matches = 0;
adamstark@23: 
adamstark@23:       var i = 0;
adamstark@23:       while (i < resultRows.length)
adamstark@23:       {
adamstark@23:         var row = resultRows.item(i);
adamstark@23:         if (row.className == "SRResult")
adamstark@23:         {
adamstark@23:           var rowMatchName = row.id.toLowerCase();
adamstark@23:           rowMatchName = rowMatchName.replace(/^sr\d*_/, ''); // strip 'sr123_'
adamstark@23: 
adamstark@23:           if (search.length<=rowMatchName.length && 
adamstark@23:              rowMatchName.substr(0, search.length)==search)
adamstark@23:           {
adamstark@23:             row.style.display = 'block';
adamstark@23:             matches++;
adamstark@23:           }
adamstark@23:           else
adamstark@23:           {
adamstark@23:             row.style.display = 'none';
adamstark@23:           }
adamstark@23:         }
adamstark@23:         i++;
adamstark@23:       }
adamstark@23:       document.getElementById("Searching").style.display='none';
adamstark@23:       if (matches == 0) // no results
adamstark@23:       {
adamstark@23:         document.getElementById("NoMatches").style.display='block';
adamstark@23:       }
adamstark@23:       else // at least one result
adamstark@23:       {
adamstark@23:         document.getElementById("NoMatches").style.display='none';
adamstark@23:       }
adamstark@23:       this.lastMatchCount = matches;
adamstark@23:       return true;
adamstark@23:     }
adamstark@23: 
adamstark@23:     // return the first item with index index or higher that is visible
adamstark@23:     this.NavNext = function(index)
adamstark@23:     {
adamstark@23:       var focusItem;
adamstark@23:       while (1)
adamstark@23:       {
adamstark@23:         var focusName = 'Item'+index;
adamstark@23:         focusItem = document.getElementById(focusName);
adamstark@23:         if (focusItem && focusItem.parentNode.parentNode.style.display=='block')
adamstark@23:         {
adamstark@23:           break;
adamstark@23:         }
adamstark@23:         else if (!focusItem) // last element
adamstark@23:         {
adamstark@23:           break;
adamstark@23:         }
adamstark@23:         focusItem=null;
adamstark@23:         index++;
adamstark@23:       }
adamstark@23:       return focusItem;
adamstark@23:     }
adamstark@23: 
adamstark@23:     this.NavPrev = function(index)
adamstark@23:     {
adamstark@23:       var focusItem;
adamstark@23:       while (1)
adamstark@23:       {
adamstark@23:         var focusName = 'Item'+index;
adamstark@23:         focusItem = document.getElementById(focusName);
adamstark@23:         if (focusItem && focusItem.parentNode.parentNode.style.display=='block')
adamstark@23:         {
adamstark@23:           break;
adamstark@23:         }
adamstark@23:         else if (!focusItem) // last element
adamstark@23:         {
adamstark@23:           break;
adamstark@23:         }
adamstark@23:         focusItem=null;
adamstark@23:         index--;
adamstark@23:       }
adamstark@23:       return focusItem;
adamstark@23:     }
adamstark@23: 
adamstark@23:     this.ProcessKeys = function(e)
adamstark@23:     {
adamstark@23:       if (e.type == "keydown") 
adamstark@23:       {
adamstark@23:         this.repeatOn = false;
adamstark@23:         this.lastKey = e.keyCode;
adamstark@23:       }
adamstark@23:       else if (e.type == "keypress")
adamstark@23:       {
adamstark@23:         if (!this.repeatOn)
adamstark@23:         {
adamstark@23:           if (this.lastKey) this.repeatOn = true;
adamstark@23:           return false; // ignore first keypress after keydown
adamstark@23:         }
adamstark@23:       }
adamstark@23:       else if (e.type == "keyup")
adamstark@23:       {
adamstark@23:         this.lastKey = 0;
adamstark@23:         this.repeatOn = false;
adamstark@23:       }
adamstark@23:       return this.lastKey!=0;
adamstark@23:     }
adamstark@23: 
adamstark@23:     this.Nav = function(evt,itemIndex) 
adamstark@23:     {
adamstark@23:       var e  = (evt) ? evt : window.event; // for IE
adamstark@23:       if (e.keyCode==13) return true;
adamstark@23:       if (!this.ProcessKeys(e)) return false;
adamstark@23: 
adamstark@23:       if (this.lastKey==38) // Up
adamstark@23:       {
adamstark@23:         var newIndex = itemIndex-1;
adamstark@23:         var focusItem = this.NavPrev(newIndex);
adamstark@23:         if (focusItem)
adamstark@23:         {
adamstark@23:           var child = this.FindChildElement(focusItem.parentNode.parentNode.id);
adamstark@23:           if (child && child.style.display == 'block') // children visible
adamstark@23:           { 
adamstark@23:             var n=0;
adamstark@23:             var tmpElem;
adamstark@23:             while (1) // search for last child
adamstark@23:             {
adamstark@23:               tmpElem = document.getElementById('Item'+newIndex+'_c'+n);
adamstark@23:               if (tmpElem)
adamstark@23:               {
adamstark@23:                 focusItem = tmpElem;
adamstark@23:               }
adamstark@23:               else // found it!
adamstark@23:               {
adamstark@23:                 break;
adamstark@23:               }
adamstark@23:               n++;
adamstark@23:             }
adamstark@23:           }
adamstark@23:         }
adamstark@23:         if (focusItem)
adamstark@23:         {
adamstark@23:           focusItem.focus();
adamstark@23:         }
adamstark@23:         else // return focus to search field
adamstark@23:         {
adamstark@23:            parent.document.getElementById("MSearchField").focus();
adamstark@23:         }
adamstark@23:       }
adamstark@23:       else if (this.lastKey==40) // Down
adamstark@23:       {
adamstark@23:         var newIndex = itemIndex+1;
adamstark@23:         var focusItem;
adamstark@23:         var item = document.getElementById('Item'+itemIndex);
adamstark@23:         var elem = this.FindChildElement(item.parentNode.parentNode.id);
adamstark@23:         if (elem && elem.style.display == 'block') // children visible
adamstark@23:         {
adamstark@23:           focusItem = document.getElementById('Item'+itemIndex+'_c0');
adamstark@23:         }
adamstark@23:         if (!focusItem) focusItem = this.NavNext(newIndex);
adamstark@23:         if (focusItem)  focusItem.focus();
adamstark@23:       }
adamstark@23:       else if (this.lastKey==39) // Right
adamstark@23:       {
adamstark@23:         var item = document.getElementById('Item'+itemIndex);
adamstark@23:         var elem = this.FindChildElement(item.parentNode.parentNode.id);
adamstark@23:         if (elem) elem.style.display = 'block';
adamstark@23:       }
adamstark@23:       else if (this.lastKey==37) // Left
adamstark@23:       {
adamstark@23:         var item = document.getElementById('Item'+itemIndex);
adamstark@23:         var elem = this.FindChildElement(item.parentNode.parentNode.id);
adamstark@23:         if (elem) elem.style.display = 'none';
adamstark@23:       }
adamstark@23:       else if (this.lastKey==27) // Escape
adamstark@23:       {
adamstark@23:         parent.searchBox.CloseResultsWindow();
adamstark@23:         parent.document.getElementById("MSearchField").focus();
adamstark@23:       }
adamstark@23:       else if (this.lastKey==13) // Enter
adamstark@23:       {
adamstark@23:         return true;
adamstark@23:       }
adamstark@23:       return false;
adamstark@23:     }
adamstark@23: 
adamstark@23:     this.NavChild = function(evt,itemIndex,childIndex)
adamstark@23:     {
adamstark@23:       var e  = (evt) ? evt : window.event; // for IE
adamstark@23:       if (e.keyCode==13) return true;
adamstark@23:       if (!this.ProcessKeys(e)) return false;
adamstark@23: 
adamstark@23:       if (this.lastKey==38) // Up
adamstark@23:       {
adamstark@23:         if (childIndex>0)
adamstark@23:         {
adamstark@23:           var newIndex = childIndex-1;
adamstark@23:           document.getElementById('Item'+itemIndex+'_c'+newIndex).focus();
adamstark@23:         }
adamstark@23:         else // already at first child, jump to parent
adamstark@23:         {
adamstark@23:           document.getElementById('Item'+itemIndex).focus();
adamstark@23:         }
adamstark@23:       }
adamstark@23:       else if (this.lastKey==40) // Down
adamstark@23:       {
adamstark@23:         var newIndex = childIndex+1;
adamstark@23:         var elem = document.getElementById('Item'+itemIndex+'_c'+newIndex);
adamstark@23:         if (!elem) // last child, jump to parent next parent
adamstark@23:         {
adamstark@23:           elem = this.NavNext(itemIndex+1);
adamstark@23:         }
adamstark@23:         if (elem)
adamstark@23:         {
adamstark@23:           elem.focus();
adamstark@23:         } 
adamstark@23:       }
adamstark@23:       else if (this.lastKey==27) // Escape
adamstark@23:       {
adamstark@23:         parent.searchBox.CloseResultsWindow();
adamstark@23:         parent.document.getElementById("MSearchField").focus();
adamstark@23:       }
adamstark@23:       else if (this.lastKey==13) // Enter
adamstark@23:       {
adamstark@23:         return true;
adamstark@23:       }
adamstark@23:       return false;
adamstark@23:     }
adamstark@23: }
adamstark@23: 
adamstark@23: function setKeyActions(elem,action)
adamstark@23: {
adamstark@23:   elem.setAttribute('onkeydown',action);
adamstark@23:   elem.setAttribute('onkeypress',action);
adamstark@23:   elem.setAttribute('onkeyup',action);
adamstark@23: }
adamstark@23: 
adamstark@23: function setClassAttr(elem,attr)
adamstark@23: {
adamstark@23:   elem.setAttribute('class',attr);
adamstark@23:   elem.setAttribute('className',attr);
adamstark@23: }
adamstark@23: 
adamstark@23: function createResults()
adamstark@23: {
adamstark@23:   var results = document.getElementById("SRResults");
adamstark@23:   for (var e=0; e<searchData.length; e++)
adamstark@23:   {
adamstark@23:     var id = searchData[e][0];
adamstark@23:     var srResult = document.createElement('div');
adamstark@23:     srResult.setAttribute('id','SR_'+id);
adamstark@23:     setClassAttr(srResult,'SRResult');
adamstark@23:     var srEntry = document.createElement('div');
adamstark@23:     setClassAttr(srEntry,'SREntry');
adamstark@23:     var srLink = document.createElement('a');
adamstark@23:     srLink.setAttribute('id','Item'+e);
adamstark@23:     setKeyActions(srLink,'return searchResults.Nav(event,'+e+')');
adamstark@23:     setClassAttr(srLink,'SRSymbol');
adamstark@23:     srLink.innerHTML = searchData[e][1][0];
adamstark@23:     srEntry.appendChild(srLink);
adamstark@23:     if (searchData[e][1].length==2) // single result
adamstark@23:     {
adamstark@23:       srLink.setAttribute('href',searchData[e][1][1][0]);
adamstark@23:       if (searchData[e][1][1][1])
adamstark@23:       {
adamstark@23:        srLink.setAttribute('target','_parent');
adamstark@23:       }
adamstark@23:       var srScope = document.createElement('span');
adamstark@23:       setClassAttr(srScope,'SRScope');
adamstark@23:       srScope.innerHTML = searchData[e][1][1][2];
adamstark@23:       srEntry.appendChild(srScope);
adamstark@23:     }
adamstark@23:     else // multiple results
adamstark@23:     {
adamstark@23:       srLink.setAttribute('href','javascript:searchResults.Toggle("SR_'+id+'")');
adamstark@23:       var srChildren = document.createElement('div');
adamstark@23:       setClassAttr(srChildren,'SRChildren');
adamstark@23:       for (var c=0; c<searchData[e][1].length-1; c++)
adamstark@23:       {
adamstark@23:         var srChild = document.createElement('a');
adamstark@23:         srChild.setAttribute('id','Item'+e+'_c'+c);
adamstark@23:         setKeyActions(srChild,'return searchResults.NavChild(event,'+e+','+c+')');
adamstark@23:         setClassAttr(srChild,'SRScope');
adamstark@23:         srChild.setAttribute('href',searchData[e][1][c+1][0]);
adamstark@23:         if (searchData[e][1][c+1][1])
adamstark@23:         {
adamstark@23:          srChild.setAttribute('target','_parent');
adamstark@23:         }
adamstark@23:         srChild.innerHTML = searchData[e][1][c+1][2];
adamstark@23:         srChildren.appendChild(srChild);
adamstark@23:       }
adamstark@23:       srEntry.appendChild(srChildren);
adamstark@23:     }
adamstark@23:     srResult.appendChild(srEntry);
adamstark@23:     results.appendChild(srResult);
adamstark@23:   }
adamstark@23: }
adamstark@23: