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//=============================================================================
// System : Color Syntax Highlighter
// File : Highlight.js
// Author : Eric Woodruff (Eric@EWoodruff.us)
// Updated : 11/13/2007
// Note : Copyright 2006, Eric Woodruff, All rights reserved
//
// This contains the script to expand and collapse the regions in the
// syntax highlighted code.
//
//=============================================================================
// Expand/collapse a region
function HighlightExpandCollapse(showId, hideId)
{
var showSpan = document.getElementById(showId),
hideSpan = document.getElementById(hideId);
showSpan.style.display = "inline";
hideSpan.style.display = "none";
}
// Copy the code if Enter or Space is hit with the image focused
function CopyColorizedCodeCheckKey(titleDiv, eventObj)
{
if(eventObj != undefined && (eventObj.keyCode == 13 ||
eventObj.keyCode == 32))
CopyColorizedCode(titleDiv);
}
// Change the icon as the mouse moves in and out of the Copy Code link
// There should be an image with the same name but an "_h" suffix just
// before the extension.
function CopyCodeChangeIcon(linkSpan)
{
var image = linkSpan.firstChild.src;
var pos = image.lastIndexOf(".");
if(linkSpan.className == "highlight-copycode")
{
linkSpan.className = "highlight-copycode_h";
linkSpan.firstChild.src = image.substr(0, pos) + "_h" +
image.substr(pos);
}
else
{
linkSpan.className = "highlight-copycode";
linkSpan.firstChild.src = image.substr(0, pos - 2) + image.substr(pos);
}
}
// Copy the code from a colorized code block to the clipboard.
function CopyColorizedCode(titleDiv)
{
var preTag, idx, line, block, htmlLines, lines, codeText, hasLineNos,
hasRegions, clip, trans, copyObject, clipID;
var reLineNo = /^\s*\d{1,4}/;
var reRegion = /^\s*\d{1,4}\+.*?\d{1,4}-/;
var reRegionText = /^\+.*?\-/;
// Find the <pre> tag containing the code. It should be in the next
// element or one of its children.
block = titleDiv.nextSibling;
while(block.nodeName == "#text")
block = block.nextSibling;
while(block.tagName != "PRE")
{
block = block.firstChild;
while(block.nodeName == "#text")
block = block.nextSibling;
}
if(block.innerText != undefined)
codeText = block.innerText;
else
codeText = block.textContent;
hasLineNos = block.innerHTML.indexOf("highlight-lineno");
hasRegions = block.innerHTML.indexOf("highlight-collapsebox");
htmlLines = block.innerHTML.split("\n");
lines = codeText.split("\n");
// Remove the line numbering and collapsible regions if present
if(hasLineNos != -1 || hasRegions != -1)
{
codeText = "";
for(idx = 0; idx < lines.length; idx++)
{
line = lines[idx];
if(hasRegions && reRegion.test(line))
line = line.replace(reRegion, "");
else
{
line = line.replace(reLineNo, "");
// Lines in expanded blocks have an extra space
if(htmlLines[idx].indexOf("highlight-expanded") != -1 ||
htmlLines[idx].indexOf("highlight-endblock") != -1)
line = line.substr(1);
}
if(hasRegions && reRegionText.test(line))
line = line.replace(reRegionText, "");
codeText += line;
// Not all browsers keep the line feed when split
if(line[line.length - 1] != "\n")
codeText += "\n";
}
}
// IE or FireFox/Netscape?
if(window.clipboardData)
window.clipboardData.setData("Text", codeText);
else
if(window.netscape)
{
// Give unrestricted access to browser APIs using XPConnect
try
{
netscape.security.PrivilegeManager.enablePrivilege(
"UniversalXPConnect");
}
catch(e)
{
alert("Universal Connect was refused, cannot copy to " +
"clipboard. Go to about:config and set " +
"signed.applets.codebase_principal_support to true to " +
"enable clipboard support.");
return;
}
// Creates an instance of nsIClipboard
clip = Components.classes[
"@mozilla.org/widget/clipboard;1"].createInstance(
Components.interfaces.nsIClipboard);
// Creates an instance of nsITransferable
if(clip)
trans = Components.classes[
"@mozilla.org/widget/transferable;1"].createInstance(
Components.interfaces.nsITransferable);
if(!trans)
{
alert("Copy to Clipboard is not supported by this browser");
return;
}
// Register the data flavor
trans.addDataFlavor("text/unicode");
// Create object to hold the data
copyObject = new Object();
// Creates an instance of nsISupportsString
copyObject = Components.classes[
"@mozilla.org/supports-string;1"].createInstance(
Components.interfaces.nsISupportsString);
// Assign the data to be copied
copyObject.data = codeText;
// Add data objects to transferable
trans.setTransferData("text/unicode", copyObject,
codeText.length * 2);
clipID = Components.interfaces.nsIClipboard;
if(!clipID)
{
alert("Copy to Clipboard is not supported by this browser");
return;
}
// Transfer the data to the clipboard
clip.setData(trans, null, clipID.kGlobalClipboard);
}
else
alert("Copy to Clipboard is not supported by this browser");
}
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