From dea1eff3d9e9781e5b92a326ad7df17d3ba8ba11 Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Thu, 15 Jul 2010 19:39:44 +0200
Subject: Initial sync with ikiwiki 3.20100704.

---
 ikiwiki/ikiwiki.js      | 54 +++++++++++++++++++++++++++++++++++
 ikiwiki/relativedate.js | 75 +++++++++++++++++++++++++++++++++++++++++++++++++
 ikiwiki/toggle.js       | 29 +++++++++++++++++++
 3 files changed, 158 insertions(+)
 create mode 100644 ikiwiki/ikiwiki.js
 create mode 100644 ikiwiki/relativedate.js
 create mode 100644 ikiwiki/toggle.js

diff --git a/ikiwiki/ikiwiki.js b/ikiwiki/ikiwiki.js
new file mode 100644
index 0000000..aebc5cf
--- /dev/null
+++ b/ikiwiki/ikiwiki.js
@@ -0,0 +1,54 @@
+// ikiwiki's javascript utility function library
+
+var hooks;
+
+// Run onload as soon as the DOM is ready, if possible.
+// gecko, opera 9
+if (document.addEventListener) {
+	document.addEventListener("DOMContentLoaded", run_hooks_onload, false);
+}
+// other browsers
+window.onload = run_hooks_onload;
+
+var onload_done = 0;
+
+function run_hooks_onload() {
+	// avoid firing twice
+	if (onload_done)
+		return;
+	onload_done = true;
+
+	run_hooks("onload");
+}
+
+function run_hooks(name) {
+	if (typeof(hooks) != "undefined") {
+		for (var i = 0; i < hooks.length; i++) {
+			if (hooks[i].name == name) {
+				hooks[i].call();
+			}
+		}
+	}
+}
+
+function hook(name, call) {
+	if (typeof(hooks) == "undefined")
+		hooks = new Array;
+	hooks.push({name: name, call: call});
+}
+
+function getElementsByClass(cls, node, tag) {
+        if (document.getElementsByClass)
+                return document.getElementsByClass(cls, node, tag);
+        if (! node) node = document;
+        if (! tag) tag = '*';
+        var ret = new Array();
+        var pattern = new RegExp("(^|\\s)"+cls+"(\\s|$)");
+        var els = node.getElementsByTagName(tag);
+        for (i = 0; i < els.length; i++) {
+                if ( pattern.test(els[i].className) ) {
+                        ret.push(els[i]);
+                }
+        }
+        return ret;
+}
diff --git a/ikiwiki/relativedate.js b/ikiwiki/relativedate.js
new file mode 100644
index 0000000..2a270d6
--- /dev/null
+++ b/ikiwiki/relativedate.js
@@ -0,0 +1,75 @@
+// Causes html elements in the 'relativedate' class to be displayed
+// as relative dates. The date is parsed from the title attribute, or from
+// the element content.
+
+var dateElements;
+
+hook("onload", getDates);
+
+function getDates() {
+	dateElements = getElementsByClass('relativedate');
+	for (var i = 0; i < dateElements.length; i++) {
+		var elt = dateElements[i];
+		var title = elt.attributes.title;
+		var d = new Date(title ? title.value : elt.innerHTML);
+		if (! isNaN(d)) {
+			dateElements[i].date=d;
+			elt.title=elt.innerHTML;
+		}
+	}
+
+	showDates();
+}
+
+function showDates() {
+	for (var i = 0; i < dateElements.length; i++) {
+		var elt = dateElements[i];
+		var d = elt.date;
+		if (! isNaN(d)) {
+			elt.innerHTML=relativeDate(d);
+		}
+	}
+	setTimeout(showDates,30000); // keep updating every 30s
+}
+
+var timeUnits = [
+	{ unit: 'year',		seconds: 60 * 60 * 24 * 364 },
+	{ unit: 'month',	seconds: 60 * 60 * 24 * 30 },
+	{ unit: 'day',		seconds: 60 * 60 * 24 },
+	{ unit: 'hour',		seconds: 60 * 60 },
+	{ unit: 'minute',	seconds: 60 },
+];
+
+function relativeDate(date) {
+	var now = new Date();
+	var offset = date.getTime() - now.getTime();
+	var seconds = Math.round(Math.abs(offset) / 1000);
+
+	// hack to avoid reading just in the future if there is a minor
+	// amount of clock slip
+	if (offset >= 0 && seconds < 30 * 60 * 60) {
+		return "just now";
+	}
+
+	var ret = "";
+	var shown = 0;
+	for (i = 0; i < timeUnits.length; i++) {
+		if (seconds >= timeUnits[i].seconds) {
+			var num = Math.floor(seconds / timeUnits[i].seconds);
+			seconds -= num * timeUnits[i].seconds;
+			if (ret)
+				ret += "and ";
+			ret += num + " " + timeUnits[i].unit + (num > 1 ? "s" : "") + " ";
+
+			if (++shown == 2)
+				break;
+		}
+		else if (shown)
+			break;
+	}
+
+	if (! ret)
+		ret = "less than a minute "
+
+	return ret + (offset < 0 ? "ago" : "from now");
+}
diff --git a/ikiwiki/toggle.js b/ikiwiki/toggle.js
new file mode 100644
index 0000000..d190b73
--- /dev/null
+++ b/ikiwiki/toggle.js
@@ -0,0 +1,29 @@
+// Uses CSS to hide toggleables, to avoid any flashing on page load. The
+// CSS is only emitted after it tests that it's going to be able
+// to show the toggleables.
+if (document.getElementById && document.getElementsByTagName && document.createTextNode) {
+	document.write('<style type="text/css">div.toggleable { display: none; }</style>');
+	hook("onload", inittoggle);
+}
+
+function inittoggle() {
+	var as = getElementsByClass('toggle');
+	for (var i = 0; i < as.length; i++) {
+		var id = as[i].href.match(/#(\w.+)/)[1];
+		if (document.getElementById(id).className == "toggleable")
+			document.getElementById(id).style.display="none";
+		as[i].onclick = function() {
+			toggle(this);
+			return false;
+		}
+	}
+}
+
+function toggle(s) {
+	var id = s.href.match(/#(\w.+)/)[1];
+	style = document.getElementById(id).style;
+	if (style.display == "none")
+		style.display = "block";
+	else
+		style.display = "none";
+}
-- 
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