From 0a7c4e83e823e2a8d74c7ac352ae69bfbecfe434 Mon Sep 17 00:00:00 2001
From: Martin Markech <martin.markech@matho.sk>
Date: Thu, 27 Sep 2012 18:22:25 +0200
Subject: add page tree + jquery tristate checkbox plugin

---
 app/assets/javascripts/banners/jquery.tristate.js | 94 +++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 app/assets/javascripts/banners/jquery.tristate.js

(limited to 'app/assets/javascripts/banners/jquery.tristate.js')

diff --git a/app/assets/javascripts/banners/jquery.tristate.js b/app/assets/javascripts/banners/jquery.tristate.js
new file mode 100644
index 0000000..2d2903d
--- /dev/null
+++ b/app/assets/javascripts/banners/jquery.tristate.js
@@ -0,0 +1,94 @@
+/**********************************************************************************
+ **
+ **              jQuery Tristate Checkbox Plugin
+ **              version: 1.0
+ **
+ **              Dual licensed under the MIT and GPL licenses:
+ **              http://www.opensource.org/licenses/mit-license.php
+ **              http://www.gnu.org/licenses/gpl.html
+ **
+ **              author: Jeff Leombruno
+ **              creation date: 09.20.2011
+ **              dependencies: jQuery v1.6 or higher
+ **
+ **              This file contains the functionality for implementing 3 state checkboxes.
+ **              Inspired by:
+ **                   http://code.google.com/p/jquery-tristate-checkbox/
+ **                   http://css-tricks.com/13467-indeterminate-checkboxes/
+ **
+ **********************************************************************************/
+
+(function($){
+    $.fn.tristate = function(options){
+
+        var config = {
+            selector: $(this).selector,
+            checked: null,
+            container: null,
+            siblings: null
+        };
+        var opts = $.extend(config, options);
+
+        return this.each(function(){
+            var obj = $(this);
+
+            var triState = function() {
+
+                var pub = {};
+
+                pub.init = function(){
+                    $('input[type="checkbox"]', obj).change(function(e) {
+                        config.checked = $(this).prop("checked")
+                        config.container = $(this).parent()
+                        config.siblings = config.container.siblings();
+
+                        config.container.find('input[type="checkbox"]').prop({
+                            indeterminate: false,
+                            checked: config.checked
+                        });
+
+                        pub.checkSiblings(config.container);
+                    });
+                    // run checkSiblings for every checked checkbox when the page loads
+                    $('input[type=checkbox]:checked', obj).each( function() {
+                        pub.checkSiblings($(this).parent());
+                    });
+                };
+
+                pub.checkSiblings = function(el) {
+                    var parent = el.parent().parent();
+                    var all = true;
+
+                    el.siblings().each(function() {
+                        return all = ($(this).children('input[type="checkbox"]').prop("checked") === config.checked);
+                    });
+
+                    if (all && config.checked) {
+                        parent.children('input[type="checkbox"]').prop({
+                            indeterminate: false,
+                            checked: config.checked
+                        });
+                        pub.checkSiblings(parent);
+                    } else if (all && !config.checked) {
+                        parent.children('input[type="checkbox"]').prop("checked", config.checked);
+                        parent.children('input[type="checkbox"]').prop("indeterminate", (parent.find('input[type="checkbox"]:checked').length > 0));
+                        pub.checkSiblings(parent);
+                    } else {
+                        el.parents("li").children('input[type="checkbox"]').prop({
+                            indeterminate: true,
+                            checked: false
+                        });
+                    }
+                };
+
+                return pub;
+
+            }();
+
+            triState.init();
+            triState.checkSiblings(obj);
+
+
+        });
+    };
+})(jQuery);
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