js/tooltip.js

   1 /* vim: set expandtab sw=4 ts=4 sts=4: */
   2 /**
   3  * Displays the Tooltips (hints), if we have some
   4  * 2005-01-20 added by Michael Keck (mkkeck)
   5  *
   6  * @version $Id$
   7  */
   8
   9 /**
  10  *
  11  */
  12 var ttXpos = 0, ttYpos = 0;
  13 var ttXadd = 10, ttYadd = -10;
  14 var ttDisplay = 0, ttHoldIt = 0;
  15 // Check if browser does support dynamic content and dhtml
  16 var ttNS4 = (document.layers) ? 1 : 0;           // the old Netscape 4
  17 var ttIE4 = (document.all) ? 1 : 0;              // browser wich uses document.all
  18 var ttDOM = (document.getElementById) ? 1 : 0;   // DOM-compatible browsers
  19 if (ttDOM) { // if DOM-compatible, set the others to false
  20     ttNS4 = 0;
  21     ttIE4 = 0;
  22 }
  23
  24 var myTooltipContainer = null;
  25
  26 if ( (ttDOM) || (ttIE4) || (ttNS4) ) {
  27     // mouse-event
  28     if ( ttNS4 ) {
  29         document.captureEvents(Event.MOUSEMOVE);
  30     } else {
  31         document.onmousemove = mouseMove;
  32     }
  33 }
  34
  35 /**
  36  * init the tooltip and write the text into it
  37  *
  38  * @param string theText tooltip content
  39  */
  40 function textTooltip(theText) {
  41     if  (ttDOM || ttIE4) {                   // document.getEelementById || document.all
  42         myTooltipContainer.innerHTML = "";  // we should empty it first
  43         myTooltipContainer.innerHTML = theText;
  44     } else if (ttNS4) {                     // document.layers
  45         var layerNS4 = myTooltipContainer.document;
  46         layerNS4.write(theText);
  47         layerNS4.close();
  48     }
  49 }
  50
  51 /**
  52  * @var integer
  53  */
  54 var ttTimerID = 0;
  55
  56 /**
  57  * swap the Tooltip // show and hide
  58  *
  59  * @param boolean stat view status
  60  */
  61 function swapTooltip(stat) {
  62     if (ttHoldIt!=1) {
  63         if (stat!='default') {
  64             if (stat=='true')
  65                 showTooltip(true);
  66             else if (stat=='false')
  67                 showTooltip(false);
  68         } else {
  69             if (ttDisplay)
  70                 ttTimerID = setTimeout("showTooltip(false);",500);
  71             else
  72                 showTooltip(true);
  73         }
  74     } else {
  75         if (ttTimerID) {
  76            clearTimeout(ttTimerID);
  77            ttTimerID = 0;
  78         }
  79         showTooltip(true);
  80     }
  81 }
  82
  83 /**
  84  * show / hide the Tooltip
  85  *
  86  * @param boolean stat view status
  87  */
  88 function showTooltip(stat) {
  89     if (stat==false) {
  90         if (ttNS4)
  91             myTooltipContainer.visibility = "hide";
  92         else
  93             myTooltipContainer.style.visibility = "hidden";
  94         ttDisplay = 0;
  95     } else {
  96         if (ttNS4)
  97             myTooltipContainer.visibility = "show";
  98         else
  99             myTooltipContainer.style.visibility = "visible";
 100         ttDisplay = 1;
 101     }
 102 }
 103 /**
 104  * hold it, if we create or move the mouse over the tooltip
 105  */
 106 function holdTooltip() {
 107     ttHoldIt = 1;
 108     swapTooltip('true');
 109     ttHoldIt = 0;
 110 }
 111
 112 /**
 113  * move the tooltip to mouse position
 114  *
 115  * @param integer posX    horiz. position
 116  * @param integer posY    vert. position
 117  */
 118 function moveTooltip(posX, posY) {
 119     if (ttDOM || ttIE4) {
 120         myTooltipContainer.style.left   =       posX + "px";
 121         myTooltipContainer.style.top  = posY + "px";
 122     } else if (ttNS4) {
 123         myTooltipContainer.left = posX;
 124         myTooltipContainer.top  = posY;
 125     }
 126 }
 127
 128 /**
 129  * build the tooltip
 130  *
 131  * @param    string    theText    tooltip content
 132  */
 133 function pmaTooltip( theText ) {
 134     // reference to TooltipContainer
 135     if ( null == myTooltipContainer ) {
 136         if (ttNS4) {
 137             myTooltipContainer = document.TooltipContainer;
 138         } else if (ttIE4) {
 139             myTooltipContainer = document.all('TooltipContainer');
 140         } else if (ttDOM) {
 141             myTooltipContainer = document.getElementById('TooltipContainer');
 142         } else {
 143             return;
 144         }
 145
 146         if ( typeof( myTooltipContainer ) == 'undefined' ) {
 147             return;
 148         }
 149     }
 150
 151     var plusX=0, plusY=0, docX=0, docY=0;
 152     var divHeight = myTooltipContainer.clientHeight;
 153     var divWidth  = myTooltipContainer.clientWidth;
 154     if (navigator.appName.indexOf("Explorer")!=-1) {
 155         if (document.documentElement && document.documentElement.scrollTop) {
 156             plusX = document.documentElement.scrollLeft;
 157             plusY = document.documentElement.scrollTop;
 158             docX = document.documentElement.offsetWidth + plusX;
 159             docY = document.documentElement.offsetHeight + plusY;
 160         } else {
 161             plusX = document.body.scrollLeft;
 162             plusY = document.body.scrollTop;
 163             docX = document.body.offsetWidth + plusX;
 164             docY = document.body.offsetHeight + plusY;
 165         }
 166     } else {
 167         docX = document.body.clientWidth;
 168         docY = document.body.clientHeight;
 169     }
 170
 171     ttXpos = ttXpos + plusX;
 172     ttYpos = ttYpos + plusY;
 173
 174     if ((ttXpos + divWidth) > docX)
 175         ttXpos = ttXpos - (divWidth + (ttXadd * 2));
 176     if ((ttYpos + divHeight) > docY)
 177         ttYpos = ttYpos - (divHeight + (ttYadd * 2));
 178
 179     textTooltip(theText);
 180     moveTooltip((ttXpos + ttXadd), (ttYpos + ttYadd));
 181     holdTooltip();
 182 }
 183
 184 /**
 185  * register mouse moves
 186  *
 187  * @param    event    e
 188  */
 189 function mouseMove(e) {
 190     if ( typeof( event ) != 'undefined' ) {
 191         ttXpos = event.x;
 192         ttYpos = event.y;
 193     } else {
 194         ttXpos = e.pageX;
 195         ttYpos = e.pageY;
 196     }
 197 }