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From 58688bde6d1ceaa4d78e416e0701ba39701e1b39 Mon Sep 17 00:00:00 2001
From: Nuno Santos <nuno.martins.santos@xpand-it.com>
Date: Thu, 26 Jul 2018 13:47:30 +0100
Subject: [PATCH 1/2] Don't create an item if some condition is not satified

---
 jquery.contextmenu.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/jquery.contextmenu.js b/jquery.contextmenu.js
index 3d5419b..96f2e30 100644
--- a/jquery.contextmenu.js
+++ b/jquery.contextmenu.js
@@ -12,6 +12,7 @@
  *       {label:'Item #2', icon:'/some/icon2.png', action:function() { alert('yo'); }},
  *       null, // divider
  *       {label:'Blahhhh', icon:'/some/icon3.png', action:function() { alert('bye'); }, isEnabled: function() { return false; }},
+ *       {label:'Another Item', icon:'/some/icon4.png', action:function() { alert('hello'); }, isActive: function() { return isItemActive() }},
  *     ]
  *   });
  *
@@ -44,6 +45,9 @@ jQuery.fn.contextPopup = function(menuData) {
     if (settings.title) {
       $('<li class="' + settings.headerClass + '"></li>').text(settings.title).appendTo(menu);
     }
+      if (item.isActive && !item.isActive()) {
+          return;
+      }
     settings.items.forEach(function(item) {
       if (item) {
         var rowCode = '<li><a href="#" class="'+settings.linkClickerClass+'"><span class="itemTitle"></span></a></li>';

From fd519863ae5d17bd86068cb641a5ba96ce5457cb Mon Sep 17 00:00:00 2001
From: Nuno Santos <nuno.martins.santos@xpand-it.com>
Date: Thu, 26 Jul 2018 13:58:54 +0100
Subject: [PATCH 2/2] Don't create item if that particular item shouldn't be
 active;  Only trigger the menu on an element which is part of a particular
 class;  Remove menu if there are no active items

Don't create item if that particular item shouldn't be active;

Only trigger the menu on an element which is part of a particular class;

Remove menu if there are no active items
---
 jquery.contextmenu.js | 178 ++++++++++++++++++++++--------------------
 1 file changed, 95 insertions(+), 83 deletions(-)

diff --git a/jquery.contextmenu.js b/jquery.contextmenu.js
index 96f2e30..71258ed 100644
--- a/jquery.contextmenu.js
+++ b/jquery.contextmenu.js
@@ -12,109 +12,121 @@
  *       {label:'Item #2', icon:'/some/icon2.png', action:function() { alert('yo'); }},
  *       null, // divider
  *       {label:'Blahhhh', icon:'/some/icon3.png', action:function() { alert('bye'); }, isEnabled: function() { return false; }},
- *       {label:'Another Item', icon:'/some/icon4.png', action:function() { alert('hello'); }, isActive: function() { return isItemActive() }},
  *     ]
  *   });
  *
- * Icon needs to be 16x16. I recommend the Fugue icon set from: http://p.yusukekamiyamane.com/ 
+ * Icon needs to be 16x16. I recommend the Fugue icon set from: http://p.yusukekamiyamane.com/
  *
  * - Joe Walnes, 2011 http://joewalnes.com/
  *   https://github.com/joewalnes/jquery-simple-context-menu
  *
  * MIT License: https://github.com/joewalnes/jquery-simple-context-menu/blob/master/LICENSE.txt
  */
-jQuery.fn.contextPopup = function(menuData) {
-	// Define default settings
-	var settings = {
-		contextMenuClass: 'contextMenuPlugin',
+jQuery.fn.contextPopup = function (menuData) {
+    // Define default settings
+    var settings = {
+        contextMenuClass: 'contextMenuPlugin',
         linkClickerClass: 'contextMenuLink',
-		gutterLineClass: 'gutterLine',
-		headerClass: 'header',
-		seperatorClass: 'divider',
-		title: '',
-		items: []
-	};
-	
-	// merge them
-	$.extend(settings, menuData);
+        gutterLineClass: 'gutterLine',
+        headerClass: 'header',
+        seperatorClass: 'divider',
+        title: '',
+        items: []
+        mandatoryClass: ''
+    };
 
-  // Build popup menu HTML
-  function createMenu(e) {
-    var menu = $('<ul class="' + settings.contextMenuClass + '"><div class="' + settings.gutterLineClass + '"></div></ul>')
-      .appendTo(document.body);
-    if (settings.title) {
-      $('<li class="' + settings.headerClass + '"></li>').text(settings.title).appendTo(menu);
+    // merge them
+    $.extend(settings, menuData);
+
+    // Build popup menu HTML
+    function createMenu(e) {
+        var menu = $('<ul class="' + settings.contextMenuClass + '"><div class="' + settings.gutterLineClass + '"></div></ul>')
+            .appendTo(document.body);
+        if (settings.title) {
+            $('<li class="' + settings.headerClass + '"></li>').text(settings.title).appendTo(menu);
+        }
+        var activeItems = 0;
+        settings.items.forEach(function (item) {
+            if (item.isActive && !item.isActive()) {
+                return;
+            }
+            if (item) {
+                var rowCode = '<li><a href="#" class="' + settings.linkClickerClass + '"><span class="itemTitle"></span></a></li>';
+
+                var row = $(rowCode).appendTo(menu);
+                if (item.icon) {
+                    var icon = $('<img>');
+                    icon.attr('src', item.icon);
+                    icon.insertBefore(row.find('.itemTitle'));
+                }
+                row.find('.itemTitle').text(item.label);
+
+                if (item.isEnabled != undefined && !item.isEnabled()) {
+                    row.addClass('disabled');
+                } else if (item.action) {
+                    row.find('.' + settings.linkClickerClass).click(function () {
+                        item.action(e);
+                    });
+                }
+                activeItems++;
+            } else {
+                $('<li class="' + settings.seperatorClass + '"></li>').appendTo(menu);
+            }
+        });
+
+        if (activeItems === 0) {
+            menu.remove();
+            return;
+        }
+
+        menu.find('.' + settings.headerClass).text(settings.title);
+        return menu;
     }
-      if (item.isActive && !item.isActive()) {
-          return;
-      }
-    settings.items.forEach(function(item) {
-      if (item) {
-        var rowCode = '<li><a href="#" class="'+settings.linkClickerClass+'"><span class="itemTitle"></span></a></li>';
-        // if(item.icon)
-        //   rowCode += '<img>';
-        // rowCode +=  '<span></span></a></li>';
-        var row = $(rowCode).appendTo(menu);
-        if(item.icon){
-          var icon = $('<img>');
-          icon.attr('src', item.icon);
-          icon.insertBefore(row.find('.itemTitle'));
+
+    // On contextmenu event (right click)
+    this.on('contextmenu', function (e) {
+        if (settings.mandatoryClass && $(e.target).closest('.' + settings.mandatoryClass).length <= 0) {
+            return;
         }
-        row.find('.itemTitle').text(item.label);
-          
-        if (item.isEnabled != undefined && !item.isEnabled()) {
-            row.addClass('disabled');
-        } else if (item.action) {
-            row.find('.'+settings.linkClickerClass).click(function () { item.action(e); });
+        var menu = createMenu(e)
+            .show();
+
+        var left = e.pageX + 5, /* nudge to the right, so the pointer is covering the title */
+            top = e.pageY;
+        if (top + menu.height() >= $(window).height()) {
+            top -= menu.height();
+        }
+        if (left + menu.width() >= $(window).width()) {
+            left -= menu.width();
         }
 
-      } else {
-        $('<li class="' + settings.seperatorClass + '"></li>').appendTo(menu);
-      }
-    });
-    menu.find('.' + settings.headerClass ).text(settings.title);
-    return menu;
-  }
+        // Create and show menu
+        menu.css({zIndex: 1000001, left: left, top: top})
+            .on('contextmenu', function () {
+                return false;
+            });
 
-  // On contextmenu event (right click)
-  this.on('contextmenu', function(e) {
-    var menu = createMenu(e)
-      .show();
-    
-    var left = e.pageX + 5, /* nudge to the right, so the pointer is covering the title */
-        top = e.pageY;
-    if (top + menu.height() >= $(window).height()) {
-        top -= menu.height();
-    }
-    if (left + menu.width() >= $(window).width()) {
-        left -= menu.width();
-    }
+        // Cover rest of page with invisible div that when clicked will cancel the popup.
+        var bg = $('<div></div>')
+            .css({left: 0, top: 0, width: '100%', height: '100%', position: 'absolute', zIndex: 1000000})
+            .appendTo(document.body)
+            .on('contextmenu click', function () {
+                // If click or right click anywhere else on page: remove clean up.
+                bg.remove();
+                menu.remove();
+                return false;
+            });
 
-    // Create and show menu
-    menu.css({zIndex:1000001, left:left, top:top})
-      .on('contextmenu', function() { return false; });
+        // When clicking on a link in menu: clean up (in addition to handlers on link already)
+        menu.find('a').click(function () {
+            bg.remove();
+            menu.remove();
+        });
 
-    // Cover rest of page with invisible div that when clicked will cancel the popup.
-    var bg = $('<div></div>')
-      .css({left:0, top:0, width:'100%', height:'100%', position:'absolute', zIndex:1000000})
-      .appendTo(document.body)
-      .on('contextmenu click', function() {
-        // If click or right click anywhere else on page: remove clean up.
-        bg.remove();
-        menu.remove();
+        // Cancel event, so real browser popup doesn't appear.
         return false;
-      });
-
-    // When clicking on a link in menu: clean up (in addition to handlers on link already)
-    menu.find('a').click(function() {
-      bg.remove();
-      menu.remove();
     });
 
-    // Cancel event, so real browser popup doesn't appear.
-    return false;
-  });
-
-  return this;
+    return this;
 };
 
