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/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Displays the Tooltips (hints), if we have some
* 2005-01-20 added by Michael Keck (mkkeck)
*
* @version $Id$
*/
/**
*
*/
var ttXpos = 0, ttYpos = 0;
var ttXadd = 10, ttYadd = -10;
var ttDisplay = 0, ttHoldIt = 0;
// Check if browser does support dynamic content and dhtml
if (document.getElementById) {
// DOM-compatible browsers
var ttDOM = 1;
} else {
// the old Netscape 4
var ttNS4 = (document.layers) ? 1 : 0;
// browser wich uses document.all
var ttIE4 = (document.all) ? 1 : 0;
}
var myTooltipContainer = null;
/**
* initialize tooltip
*/
function PMA_TT_init()
{
// get all 'light bubbles' on page
var tooltip_icons = window.parent.getElementsByClassName('footnotemarker', document, 'sup');
var tooltip_count = tooltip_icons.length;
if (tooltip_count < 1) {
// no 'bubbles' found
return;
}
// insert tooltip container
myTooltipContainer = document.createElement("div");
myTooltipContainer.id = 'TooltipContainer';
window.parent.addEvent(myTooltipContainer, 'mouseover', holdTooltip);
window.parent.addEvent(myTooltipContainer, 'mouseout', swapTooltip);
document.body.appendChild(myTooltipContainer);
// capture mouse-events
for (i = 0; i < tooltip_count; i++) {
window.parent.addEvent(tooltip_icons[i], 'mousemove', mouseMove);
window.parent.addEvent(tooltip_icons[i], 'mouseover', pmaTooltip);
window.parent.addEvent(tooltip_icons[i], 'mouseout', swapTooltip);
}
}
/**
* init the tooltip and write the text into it
*
* @param string theText tooltip content
*/
function PMA_TT_setText(theText)
{
if (ttDOM || ttIE4) { // document.getEelementById || document.all
myTooltipContainer.innerHTML = ""; // we should empty it first
myTooltipContainer.innerHTML = theText;
} else if (ttNS4) { // document.layers
var layerNS4 = myTooltipContainer.document;
layerNS4.write(theText);
layerNS4.close();
}
}
/**
* @var integer
*/
var ttTimerID = 0;
/**
* swap the Tooltip // show and hide
*
* @param boolean stat view status
*/
function swapTooltip(stat)
{
if (ttHoldIt != 1) {
if (stat == 'true') {
showTooltip(true);
} else if (ttDisplay) {
ttTimerID = setTimeout("showTooltip(false);", 500);
} else {
showTooltip(true);
}
} else {
if (ttTimerID) {
clearTimeout(ttTimerID);
ttTimerID = 0;
}
showTooltip(true);
}
}
/**
* show / hide the Tooltip
*
* @param boolean stat view status
*/
function showTooltip(stat)
{
if (stat == false) {
if (ttNS4)
myTooltipContainer.visibility = "hide";
else
myTooltipContainer.style.visibility = "hidden";
ttDisplay = 0;
} else {
if (ttNS4)
myTooltipContainer.visibility = "show";
else
myTooltipContainer.style.visibility = "visible";
ttDisplay = 1;
}
}
/**
* hold it, if we create or move the mouse over the tooltip
*/
function holdTooltip()
{
ttHoldIt = 1;
swapTooltip('true');
ttHoldIt = 0;
}
/**
* move the tooltip to mouse position
*
* @param integer posX horiz. position
* @param integer posY vert. position
*/
function moveTooltip(posX, posY)
{
if (ttDOM || ttIE4) {
myTooltipContainer.style.left = posX + "px";
myTooltipContainer.style.top = posY + "px";
} else if (ttNS4) {
myTooltipContainer.left = posX;
myTooltipContainer.top = posY;
}
}
/**
* build the tooltip
* usally called from eventhandler
*
* @param string theText tooltip content
*/
function pmaTooltip(e)
{
var theText = document.getElementById('footnote_' + this.innerHTML).innerHTML;
var plusX = 0, plusY = 0, docX = 0, docY = 0;
var divHeight = myTooltipContainer.clientHeight;
var divWidth = myTooltipContainer.clientWidth;
if (navigator.appName.indexOf("Explorer") != -1) {
// IE ...
if (document.documentElement && document.documentElement.scrollTop) {
plusX = document.documentElement.scrollLeft;
plusY = document.documentElement.scrollTop;
docX = document.documentElement.offsetWidth + plusX;
docY = document.documentElement.offsetHeight + plusY;
} else {
plusX = document.body.scrollLeft;
plusY = document.body.scrollTop;
docX = document.body.offsetWidth + plusX;
docY = document.body.offsetHeight + plusY;
}
} else {
docX = document.body.clientWidth;
docY = document.body.clientHeight;
}
ttXpos = ttXpos + plusX;
ttYpos = ttYpos + plusY;
if ((ttXpos + divWidth) > docX)
ttXpos = ttXpos - (divWidth + (ttXadd * 2));
if ((ttYpos + divHeight) > docY)
ttYpos = ttYpos - (divHeight + (ttYadd * 2));
PMA_TT_setText(theText);
moveTooltip((ttXpos + ttXadd), (ttYpos + ttYadd));
holdTooltip();
}
/**
* register mouse moves
*
* @param event e
*/
function mouseMove(e) {
if ( typeof( event ) != 'undefined' ) {
ttXpos = event.x;
ttYpos = event.y;
} else {
ttXpos = e.pageX;
ttYpos = e.pageY;
}
moveTooltip((ttXpos + ttXadd), (ttYpos + ttYadd));
}
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