Initial implementation of javascript drilldown tree
[gitphp.git] / js / tree.js
blob:a/js/tree.js -> blob:b/js/tree.js
--- a/js/tree.js
+++ b/js/tree.js
@@ -9,12 +9,29 @@
  * @subpackage Javascript
  */
 
+function expanderLink(href, text) {
+	var a = jQuery(document.createElement('a'));
+	a.attr('href', href);
+	a.text(text);
+	a.addClass('jsTree');
+	a.addClass('expander');
+	return a;
+};
+
 function initTree() {
-	var project = window.location.href.match(/p=([^&]+)/);
-	if (!project) {
+	var url = window.location.href.match(/^([^\?]+\/)/);
+	if (!url) {
 		return;
 	}
-	project = unescape(project[1]);
+	url = url[1];
+
+	var collapsed = '[+]';
+	var expanded = '[–]';
+	var indent = '—';
+
+	$('a.treeLink').each(function() {
+		$(this).parent().parent().find('td.expander').append(expanderLink($(this).attr('href'), collapsed));
+	});
 
 	$('a.jsTree').live('click', function() {
 		var treeHash = $(this).attr('href').match(/h=([0-9a-fA-F]{40}|HEAD)/);
@@ -24,43 +41,82 @@
 
 		treeHash = treeHash[1];
 
-		var treeTable = $('table#' + treeHash);
-		if (treeTable && treeTable.size() > 0) {
-			if (treeTable.is(':visible'))
-				treeTable.slideUp('fast');
-			else
-				treeTable.slideDown('fast');
+		var cell = $(this).parent();
+		var row = cell.parent();
+
+		var treeRows = $('.' + treeHash);
+		if (treeRows && treeRows.size() > 0) {
+			if (treeRows.is(':visible')) {
+				treeRows.hide();
+				treeRows.each(function() {
+					if ($(this).data('parent') == treeHash) {
+						$(this).data('expanded', false);
+					}
+				});
+				row.find('a.expander').text(collapsed);
+			} else {
+				treeRows.each(function() {
+					if (($(this).data('parent') == treeHash) || ($(this).data('expanded') == true)) {
+						$(this).show();
+						$(this).data('expanded', true);
+					}
+				});
+				row.find('a.expander').text(expanded);
+			}
 		} else {
-			var row = jQuery(document.createElement('tr'));
+			var depth = row.data('depth');
+			if (depth == null)
+				depth = 0;
+			depth++;
 
-			var cell = jQuery(document.createElement('td'));
-			cell.attr('colspan', '4');
-			cell.attr('id', 'td' + treeHash);
-			cell.addClass('subTree');
-			cell.appendTo(row);
-
-			$(this).parent().parent().after(row);
-
-			var par = $(this).parent();
-			var htm = par.html();
-			var indent = par.html().match(/^(—+)/);
-			if (indent)
-				indent = indent[1];
-			else
-				indent = '';
-			indent += '—';
+			var img = jQuery(document.createElement('img'));
+			img.attr('src', url + "images/tree-loader.gif");
+			img.attr('alt', GITPHP_RES_LOADING);
+			img.addClass('treeSpinner');
+			row.find('a.treeLink').after(img);
 
 			$.get($(this).attr('href'), { o: 'js' },
 			function(data) {
-				var subTable = jQuery(data);
-				subTable.find('td.fileName').prepend(indent);
-				$('#td' + treeHash).html(subTable);
+				var subRows = jQuery(data);
+
+				subRows.addClass(treeHash);
+
+				var classList = row.attr('class').split(/\s+/);
+				$.each(classList, function(index, item) {
+					if (item.match(/[0-9a-fA-F]{40}/)) {
+						subRows.addClass(item);
+					}
+				});
+
+				subRows.each(function() {
+
+					$(this).data('parent', treeHash);
+					$(this).data('expanded', true);
+					$(this).data('depth', depth);
+
+					var fileCell = $(this).find('td.fileName');
+					var treeLink = $(this).find('a.treeLink');
+					if (treeLink && (treeLink.size() > 0)) {
+						fileCell.prepend(expanderLink(treeLink.attr('href'), collapsed));
+					} else {
+						fileCell.prepend(indent);
+					}
+
+					for (var i = 1; i < depth; i++) {
+						fileCell.prepend(indent);
+					}
+				});
+
+				row.after(subRows);
+
+				row.find('a.expander').text(expanded);
+				row.find('img.treeSpinner').remove();
 			});
 		}
 
 		return false;
 	});
-}
+};
 
 $(document).ready(function() {
 	initTree();

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