[gnome-shell] messageTray: Allow to make notification buttons insensitive

[Florian MÃllner <fmuellner src gnome org>]

commit 6190d6c962ca4df2675789e29672e74e5c55fa32
Author: Florian MÃllner <fmuellner gnome org>
Date:   Thu May 17 21:05:36 2012 +0200

    messageTray: Allow to make notification buttons insensitive
    
    The availability of a notification action may depend on conditions,
    so add a method to control the sensitivity of buttons which have
    been added with addButton().
    
    https://bugzilla.gnome.org/show_bug.cgi?id=651251

 data/theme/gnome-shell.css |    5 +++++
 js/ui/messageTray.js       |   26 ++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 0 deletions(-)
---
diff --git a/data/theme/gnome-shell.css b/data/theme/gnome-shell.css
index 259be26..a229653 100644
--- a/data/theme/gnome-shell.css
+++ b/data/theme/gnome-shell.css
@@ -328,6 +328,11 @@ StScrollBar StButton#vhandle:hover
     background-gradient-end: rgba(255, 255, 255, 0.2);
 }
 
+.notification-icon-button:insensitive,
+.notification-button:insensitive {
+    color: #9f9f9f;
+}
+
 /* Panel */
 
 #panel {
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index c7e3410..a5bd472 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -746,6 +746,7 @@ const Notification = new Lang.Class({
         }
 
         let button = new St.Button({ can_focus: true });
+        button._actionId = id;
 
         if (this._useActionIcons && Gtk.IconTheme.get_default().has_icon(id)) {
             button.add_style_class_name('notification-icon-button');
@@ -765,6 +766,31 @@ const Notification = new Lang.Class({
         this.updated();
     },
 
+    // setButtonSensitive:
+    // @id: the action ID
+    // @sensitive: whether the button should be sensitive
+    //
+    // If the notification contains a button with action ID @id,
+    // its sensitivity will be set to @sensitive. Insensitive
+    // buttons cannot be clicked.
+    setButtonSensitive: function(id, sensitive) {
+        if (!this._buttonBox)
+            return;
+
+        let button = this._buttonBox.get_children().filter(function(b) {
+            return b._actionId == id;
+        })[0];
+
+        if (!button || button.reactive == sensitive)
+            return;
+
+        button.reactive = sensitive;
+        if (sensitive)
+            button.remove_style_pseudo_class('insensitive');
+        else
+            button.add_style_pseudo_class('insensitive');
+    },
+
     setUrgency: function(urgency) {
         this.urgency = urgency;
     },