search.js

launchpad msp430官方示例

// Search script generated by doxygen
// Copyright (C) 2009 by Dimitri van Heesch.

// The code in this file is loosly based on main.js, part of Natural Docs,
// which is Copyright (C) 2003-2008 Greg Valure
// Natural Docs is licensed under the GPL.

var indexSectionsWithContent =
{
  0: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001100000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  1: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  2: "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"
};

var indexSectionNames =
{
  0: "all",
  1: "files",
  2: "functions"
};

function convertToId(search)
{
  var result = '';
  for (i=0;i<search.length;i++)
  {
    var c = search.charAt(i);
    var cn = c.charCodeAt(0);
    if (c.match(/[a-z0-9]/))
    {
      result+=c;
    }
    else if (cn<16) 
    {
      result+="_0"+cn.toString(16);
    }
    else 
    {
      result+="_"+cn.toString(16);
    }
  }
  return result;
}

function getXPos(item)
{
  var x = 0;
  if (item.offsetWidth)
  {
    while (item && item!=document.body)
    {
      x   += item.offsetLeft;
      item = item.offsetParent;
    }
  }
  return x;
}

function getYPos(item)
{
  var y = 0;
  if (item.offsetWidth)
  {
     while (item && item!=document.body)
     {
       y   += item.offsetTop;
       item = item.offsetParent;
     }
  }
  return y;
}

/* A class handling everything associated with the search panel.

   Parameters:
   name - The name of the global variable that will be 
          storing this instance.  Is needed to be able to set timeouts.
   resultPath - path to use for external files
*/
function SearchBox(name, resultsPath, inFrame, label)
{
  if (!name || !resultsPath) {  alert("Missing parameters to SearchBox."); }
   
  // ---------- Instance variables
  this.name                  = name;
  this.resultsPath           = resultsPath;
  this.keyTimeout            = 0;
  this.keyTimeoutLength      = 500;
  this.closeSelectionTimeout = 300;
  this.lastSearchValue       = "";
  this.lastResultsPage       = "";
  this.hideTimeout           = 0;
  this.searchIndex           = 0;
  this.searchActive          = false;
  this.insideFrame           = inFrame;
  this.searchLabel           = label;

  // ----------- DOM Elements

  this.DOMSearchField = function()
  {  return document.getElementById("MSearchField");  }

  this.DOMSearchSelect = function()
  {  return document.getElementById("MSearchSelect");  }

  this.DOMSearchSelectWindow = function()
  {  return document.getElementById("MSearchSelectWindow");  }

  this.DOMPopupSearchResults = function()
  {  return document.getElementById("MSearchResults");  }

  this.DOMPopupSearchResultsWindow = function()
  {  return document.getElementById("MSearchResultsWindow");  }

  this.DOMSearchClose = function()
  {  return document.getElementById("MSearchClose"); }

  this.DOMSearchBox = function()
  {  return document.getElementById("MSearchBox");  }

  // ------------ Event Handlers

  // Called when focus is added or removed from the search field.
  this.OnSearchFieldFocus = function(isActive)
  {
    this.Activate(isActive);
  }

  this.OnSearchSelectShow = function()
  {
    var searchSelectWindow = this.DOMSearchSelectWindow();
    var searchField        = this.DOMSearchSelect();

    if (this.insideFrame)
    {
      var left = getXPos(searchField);
      var top  = getYPos(searchField);
      left += searchField.offsetWidth + 6;
      top += searchField.offsetHeight;

      // show search selection popup
      searchSelectWindow.style.display='block';
      left -= searchSelectWindow.offsetWidth;
      searchSelectWindow.style.left =  left + 'px';
      searchSelectWindow.style.top  =  top  + 'px';
    }
    else
    {
      var left = getXPos(searchField);
      var top  = getYPos(searchField);
      top += searchField.offsetHeight;

      // show search selection popup
      searchSelectWindow.style.display='block';
      searchSelectWindow.style.left =  left + 'px';
      searchSelectWindow.style.top  =  top  + 'px';
    }

    // stop selection hide timer
    if (this.hideTimeout) 
    {
      clearTimeout(this.hideTimeout);
      this.hideTimeout=0;
    }
    return false; // to avoid "image drag" default event
  }

  this.OnSearchSelectHide = function()
  {
    this.hideTimeout = setTimeout(this.name +".CloseSelectionWindow()",
                                  this.closeSelectionTimeout);
  }

  // Called when the content of the search field is changed.
  this.OnSearchFieldChange = function(evt)
  {
    if (this.keyTimeout) // kill running timer
    {
      clearTimeout(this.keyTimeout);
      this.keyTimeout = 0;
    }

    var e  = (evt) ? evt : window.event; // for IE
    if (e.keyCode==40 || e.keyCode==13)
    {
      if (e.shiftKey==1)
      {
        this.OnSearchSelectShow();
        var win=this.DOMSearchSelectWindow(); 
        for (i=0;i<win.childNodes.length;i++)
        {
          var child = win.childNodes[i]; // get span within a
          if (child.className=='SelectItem')
          {
            child.focus();
            return;
          }
        }
        return;
      }
      else if (window.frames.MSearchResults.searchResults)
      {
        var elem = window.frames.MSearchResults.searchResults.NavNext(0);
        if (elem) elem.focus();
      }
    }
    else if (e.keyCode==27) // Escape out of the search field
    {
      this.DOMSearchField().blur();
      this.DOMPopupSearchResultsWindow().style.display = 'none';
      this.DOMSearchClose().style.display = 'none';
      this.lastSearchValue = '';
      this.Activate(false);
      return;
    }

    // strip whitespaces
    var searchValue = this.DOMSearchField().value.replace(/ +/g, "");

    if (searchValue != this.lastSearchValue) // search value has changed
    {
      if (searchValue != "") // non-empty search
      {
        // set timer for search update
        this.keyTimeout = setTimeout(this.name + '.Search()',
                                     this.keyTimeoutLength);
      }
      else // empty search field
      {
        this.DOMPopupSearchResultsWindow().style.display = 'none';
        this.DOMSearchClose().style.display = 'none';
        this.lastSearchValue = '';
      }
    }
  }

  this.SelectItemCount = function(id)
  {
    var count=0;
    var win=this.DOMSearchSelectWindow(); 
    for (i=0;i<win.childNodes.length;i++)
    {
      var child = win.childNodes[i]; // get span within a
      if (child.className=='SelectItem')
      {
        count++;
      }
    }
    return count;
  }

  this.SelectItemSet = function(id)
  {
    var i,j=0;
    var win=this.DOMSearchSelectWindow(); 
    for (i=0;i<win.childNodes.length;i++)
    {
      var child = win.childNodes[i]; // get span within a
      if (child.className=='SelectItem')
      {
        var node = child.firstChild;
        if (j==id)
        {
          node.innerHTML='&bull;';
        }
        else
        {
          node.innerHTML='&#160;';
        }
        j++;
      }
    }
  }

  // Called when an search filter selection is made.
  // set item with index id as the active item
  this.OnSelectItem = function(id)
  {
    this.searchIndex = id;
    this.SelectItemSet(id);
    var searchValue = this.DOMSearchField().value.replace(/ +/g, "");
    if (searchValue!="" && this.searchActive) // something was found -> do a search
    {
      this.Search();
    }
  }

  this.OnSearchSelectKey = function(evt)
  {
    var e = (evt) ? evt : window.event; // for IE
    if (e.keyCode==40 && this.searchIndex<this.SelectItemCount()) // Down
    {
      this.searchIndex++;
      this.OnSelectItem(this.searchIndex);
    }
    else if (e.keyCode==38 && this.searchIndex>0) // Up
    {
      this.searchIndex--;
      this.OnSelectItem(this.searchIndex);
    }
    else if (e.keyCode==13 || e.keyCode==27)
    {
      this.OnSelectItem(this.searchIndex);
      this.CloseSelectionWindow();
      this.DOMSearchField().focus();
    }
    return false;
  }

  // --------- Actions

  // Closes the results window.
  this.CloseResultsWindow = function()
  {
    this.DOMPopupSearchResultsWindow().style.display = 'none';
    this.DOMSearchClose().style.display = 'none';
    this.Activate(false);
  }

  this.CloseSelectionWindow = function()
  {
    this.DOMSearchSelectWindow().style.display = 'none';
  }

  // Performs a search.
  this.Search = function()
  {
    this.keyTimeout = 0;

    // strip leading whitespace
    var searchValue = this.DOMSearchField().value.replace(/^ +/, "");

    var code = searchValue.toLowerCase().charCodeAt(0);
    var hexCode;
    if (code<16) 
    {
      hexCode="0"+code.toString(16);
    }
    else 
    {
      hexCode=code.toString(16);
    }

    var resultsPage;
    var resultsPageWithSearch;
    var hasResultsPage;

    if (indexSectionsWithContent[this.searchIndex].charAt(code) == '1')
    {
       resultsPage = this.resultsPath + '/' + indexSectionNames[this.searchIndex] + '_' + hexCode + '.html';
       resultsPageWithSearch = resultsPage+'?'+escape(searchValue);
       hasResultsPage = true;
    }
    else // nothing available for this search term
    {
       resultsPage = this.resultsPath + '/nomatches.html';
       resultsPageWithSearch = resultsPage;
       hasResultsPage = false;
    }

    window.frames.MSearchResults.location.href = resultsPageWithSearch;  
    var domPopupSearchResultsWindow = this.DOMPopupSearchResultsWindow();

    if (domPopupSearchResultsWindow.style.display!='block')
    {
       var domSearchBox = this.DOMSearchBox();