Populated release branch

1 files changed, 162 insertions, 0 deletions

diff --git a/itjs/boot.js b/itjs/boot.js
new file mode 100644
index 0000000..aaa0321
--- /dev/null
+++ b/itjs/boot.js
@@ -0,0 +1,162 @@
+// $Id$
+
+var it_boot_status = "boot";
+var it_panictimer = window.setTimeout("it_panic(it_boot_status)", 31337), it_domtimer;
+var it_catcherrstart = new Date().getTime();
+
+function it_catcherr(msg, url, line)
+{
+	var stacktrace = "";
+
+	for (var c = it_catcherr.caller; c != null; c = c.caller)
+	{
+		var funcname = c.toString().match(/function (\w*)/)[1];
+		stacktrace += (funcname ? funcname : "anon") + "/";
+
+		if (c.caller == c)	// Break simple recursion
+		{
+			stacktrace += "*";
+			break;
+		}
+	}
+
+	if (typeof it_boot.sequence != 'undefined')
+		stacktrace += "it_boot=" + it_boot.sequence + ";";
+	if (typeof window.it_loader != 'undefined' && it_loader.sequence)
+		stacktrace += "it_loader=" + it_loader.sequence + ";";
+
+	it_boot_report(msg, url, line, stacktrace);
+
+	return !window.env || !!window.env.is_live_server;	// No env or live server -> suppress error
+}
+
+window.onerror = it_catcherr;
+
+function it_boot_addparam(url, param)
+{
+	return url + (url.match(/\?/) ? "&" : "?") + param;
+}
+
+function it_panic(reason, msg)
+{
+	if (!document.location.href.match(/[?&]static=/))	// Avoid loop
+		window.setTimeout("document.location.href = it_boot_addparam(document.location.href, 'static=" + reason + "')", 500);
+
+	return it_boot_report('panic ' + reason, '-', -1, (msg ? msg : ''));
+}
+
+function it_boot_report(msg, file, line, more)
+{
+	window.clearTimeout(window.it_domtimer);
+	window.clearTimeout(window.it_panictimer);
+
+	new Image().src = "/itjs/error.gif/" + escape(msg) + "|" + escape(file) + "|" + line + "|" + (new Date().getTime() - it_catcherrstart) + "|" + escape(more);
+}
+
+function it_boot_checkcss(style, key, value)
+{
+	return navigator.userAgent.match(/konqueror/i) || (style && style.getPropertyValue && (style.getPropertyValue(key) == value));
+}
+
+function it_boot_init()
+{
+	window.it_domtimer = null;
+	var konqueror = navigator.userAgent.match(/konqueror/i);
+	var doc = document;
+	var dom = doc && (dom = doc.getElementById('it_boot_dom'));	// HTML has been rendered
+	var view = dom && doc.defaultView;	// We can check if stylesheet is active
+	var style = view && view.getComputedStyle && view.getComputedStyle(dom, '');
+	var css = window.it_boot_checkcss(style, "visibility", "hidden"); // CSS active (inline style on tag)
+	var stylesheet = window.it_boot_checkcss(style, "display", "none");	// External stylesheet loaded
+
+	if (!(doc || !(it_boot_status = "doc")) || !(dom || !(it_boot_status = "dom")) || (style && !(stylesheet || !(it_boot_status = "stylesheet"))))
+	{
+		window.it_domtimer = window.setTimeout("it_boot_init()" , 42);
+
+		if (style && !css)
+			it_panic("css");
+
+		return;
+	}
+
+	it_boot.sequence += "i";
+	window.clearTimeout(window.it_panictimer); 
+	window.it_boot_start();
+	it_boot.sequence = "";
+}
+
+function it_boot(file, isretry)
+{
+	it_boot.file = file;
+	it_boot.sequence = isretry ? "r" : "b";
+
+	try
+	{
+		var loader = new XMLHttpRequest();
+	}
+	catch (e)
+	{
+		var classnames = [ 'MSXML2.XMLHTTP', 'Microsoft.XMLHTTP' ];
+
+		for (var i in classnames)
+			try { loader = new ActiveXObject(classnames[i]); break; } catch (e) {}
+	}
+
+	if (loader)
+	{
+		it_boot.sequence += "l";
+		loader.open("GET", it_boot_addparam(file, "boot=1" + (isretry ? "&retry=1" : "")));
+		loader.onreadystatechange = function()
+		{
+			var error = "";
+
+			if (loader.readyState == 4)
+			{
+				if (loader.status < 400)	// Opera gives back 304 if from cache
+				{
+					// check length cookie
+					var ln = String(loader.responseText).substr(-16).match(/\*sln:\s*([0-9]+)\*/);
+					if (ln && ln[1]-0 == loader.responseText.length)
+					{
+						it_boot.sequence += "e";
+						var code = "try {" + loader.responseText + "} catch (e) { it_catcherr(e.message, it_boot.file, -1); }";	// Wrapped in try/catch as Konqueror does not support window.onerror
+						if (window.execScript)
+							window.execScript(code, "javascript");	// IE work-around to get script executed in global scope
+						else
+							window.setTimeout(code, 0);	// Standard compliant version
+					}
+					else
+						error = (ln ? "length mismatch: "+ln[1]+" != "+loader.responseText.length : "no length cookie");
+				}
+				else
+					error = loader.statusText;
+
+				if (error)
+				{
+					if (isretry)
+						it_panic('load', error);
+					else
+						it_boot(file, true);
+				}
+			}
+		}
+		loader.send(null);
+	}
+	else
+	{
+		var doc = document;
+		var dom = doc && (dom = doc.getElementById('it_boot_dom'));	// HTML has been rendered
+		it_boot.sequence += "n";
+
+		if (window.opera || (document.all && navigator.platform.indexOf("Mac") >= 0))
+			document.write('<sc'+'ript type="text/javascript" src="'+it_boot_addparam(file, 'boot=1')+'"><\/sc'+'ript>');
+		else if (dom)
+		{
+			var tag = doc.createElement("script");
+			tag.src = it_boot_addparam(file, 'boot=1&retry=1');
+			dom.appendChild(tag);
+		}
+		else
+			window.it_domtimer = window.setTimeout("it_boot('" + file + "')" , 42);
+	}
+}