107 lines
3.3 KiB
JavaScript
107 lines
3.3 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Bugzilla Bug Tracking System.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Gervase Markham <gerv@gerv.net>
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*
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* ***** END LICENSE BLOCK ***** */
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var g_helpTexts = new Object();
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var g_helpIframe;
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var g_helpDiv;
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/**
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* Generate help controls during page construction.
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*
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* @return Boolean; true if controls were created and false if not.
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*/
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function generateHelp()
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{
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// Only enable help if controls can be hidden
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if (!document.body.style)
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return false;
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// Create help controls (a div to hold help text and an iframe
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// to mask any and all controls under the popup)
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document.write('<div id="helpDiv" style="display: none;"><\/div>');
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document.write('<iframe id="helpIframe" src="about:blank" frameborder="0" scrolling="no"><\/iframe>');
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return true;
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}
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/**
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* Enable help popups for all form elements after the page has finished loading.
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*
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* @return Boolean; true if help was enabled and false if not.
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*/
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function enableHelp()
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{
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g_helpIframe = document.getElementById('helpIframe');
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g_helpDiv = document.getElementById('helpDiv');
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if (!g_helpIframe || !g_helpDiv) // Disabled if no controls found
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return false;
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// MS decided to add fieldsets to the elements array; and
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// Mozilla decided to copy this brokenness. Grr.
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for (var i = 0; i < document.forms.length; i++)
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for (var j = 0; j < document.forms[i].elements.length; j++)
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if (document.forms[i].elements[j].tagName != 'FIELDSET')
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document.forms[i].elements[j].onmouseover = showHelp;
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document.body.onclick = hideHelp;
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return true;
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}
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/**
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* Show the help popup for a form element.
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*/
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function showHelp()
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{
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if (!g_helpIframe || !g_helpDiv || !g_helpTexts[this.name])
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return;
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// Get the position and size of the form element in the document
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var elemPos = findPos(this);
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var elemX = elemPos[0];
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var elemY = elemPos[1];
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var elemH = this.offsetHeight;
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// Update help text displayed in the div
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g_helpDiv.innerHTML = ''; // Helps IE 5 Mac
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g_helpDiv.innerHTML = g_helpTexts[this.name];
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// Position and display the help popup
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g_helpIframe.style.top = g_helpDiv.style.top = elemY + elemH + 5 + "px";
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g_helpIframe.style.left = g_helpDiv.style.left = elemX + "px";
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g_helpIframe.style.display = g_helpDiv.style.display = '';
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g_helpIframe.style.width = g_helpDiv.offsetWidth + "px";
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g_helpIframe.style.height = g_helpDiv.offsetHeight + "px";
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}
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/**
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* Hide the help popup.
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*/
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function hideHelp()
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{
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if (!g_helpIframe || !g_helpDiv)
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return;
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g_helpIframe.style.display = g_helpDiv.style.display = 'none';
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}
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