Adds buttons to scroll the tabs when they overflow.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3174 e93f8b46-1217-0410-a6f0-8f06a7374b81

1 files changed, 49 insertions, 0 deletions

diff --git a/public/javascripts/application.js b/public/javascripts/application.js
index cc75c8180..1a5e0c04f 100644
--- a/public/javascripts/application.js
+++ b/public/javascripts/application.js
@@ -73,6 +73,55 @@ function showTab(name) {
 	return false;
 }
 
+function moveTabRight(el) {
+	var lis = Element.up(el, 'div.tabs').down('ul').childElements();
+	var tabsWidth = 0;
+	var i;
+	for (i=0; i<lis.length; i++) {
+		if (lis[i].visible()) {
+			tabsWidth += lis[i].getWidth() + 6;
+		}
+	}
+	if (tabsWidth < Element.up(el, 'div.tabs').getWidth() - 60) {
+		return;
+	}
+	i=0;
+	while (i<lis.length && !lis[i].visible()) {
+		i++;
+	}
+	lis[i].hide();
+}
+
+function moveTabLeft(el) {
+	var lis = Element.up(el, 'div.tabs').down('ul').childElements();
+	var i = 0;
+	while (i<lis.length && !lis[i].visible()) {
+		i++;
+	}
+	if (i>0) {
+		lis[i-1].show();
+	}
+}
+
+function displayTabsButtons() {
+	var lis;
+	var tabsWidth = 0;
+	var i;
+	$$('div.tabs').each(function(el) {
+		lis = el.down('ul').childElements();
+		for (i=0; i<lis.length; i++) {
+			if (lis[i].visible()) {
+				tabsWidth += lis[i].getWidth() + 6;
+			}
+		}
+		if (tabsWidth < el.getWidth() - 60) {
+			el.down('div.tabs-buttons').hide();
+		} else {
+			el.down('div.tabs-buttons').show();
+		}
+	});
+}
+
 function setPredecessorFieldsVisibility() {
     relationType = $('relation_relation_type');
     if (relationType && relationType.value == "precedes") {