[gnome-shell] mount-operation: implement show-unmount-progress

[Cosimo Cecchi <cosimoc src gnome org>]

commit 168e0b5a42ecb4a4d622e0d5d7b3f0eac973a361
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Mon Jul 9 21:58:12 2012 -0400

    mount-operation: implement show-unmount-progress
    
    Show a notification when we receive a show-unmount-progress signal on
    the mount operation we use for unmounting.
    The notification will either turn fade out automatically with a
    completion message when the unmount successfully completes, or will
    disappear in case the operation is aborted underway (for example because
    the device has been unplugged in the meantime).
    
    https://bugzilla.gnome.org/show_bug.cgi?id=676125

 js/ui/shellMountOperation.js |   57 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 57 insertions(+), 0 deletions(-)
---
diff --git a/js/ui/shellMountOperation.js b/js/ui/shellMountOperation.js
index 465891a..f65b74e 100644
--- a/js/ui/shellMountOperation.js
+++ b/js/ui/shellMountOperation.js
@@ -117,6 +117,8 @@ const ShellMountOperation = new Lang.Class({
                              Lang.bind(this, this._onShowProcesses2));
         this.mountOp.connect('aborted',
                              Lang.bind(this, this.close));
+        this.mountOp.connect('show-unmount-progress',
+                             Lang.bind(this, this._onShowUnmountProgress));
 
         this._gicon = source.get_icon();
     },
@@ -178,6 +180,11 @@ const ShellMountOperation = new Lang.Class({
             this._dialog.close();
             this._dialog = null;
         }
+
+        if (this._notifier) {
+            this._notifier.done();
+            this._notifier = null;
+        }
     },
 
     _onShowProcesses2: function(op) {
@@ -208,6 +215,16 @@ const ShellMountOperation = new Lang.Class({
         this._processesDialog.update(message, processes, choices);
     },
 
+    _onShowUnmountProgress: function(op, message, timeLeft, bytesLeft) {
+        if (!this._notifier)
+            this._notifier = new ShellUnmountNotifier();
+            
+        if (bytesLeft == 0)
+            this._notifier.done(message);
+        else
+            this._notifier.show(message);
+    },
+
     borrowDialog: function() {
         if (this._dialogId != 0) {
             this._dialog.disconnect(this._dialogId);
@@ -218,6 +235,46 @@ const ShellMountOperation = new Lang.Class({
     }
 });
 
+const ShellUnmountNotifier = new Lang.Class({
+    Name: 'ShellUnmountNotifier',
+    Extends: MessageTray.Source,
+
+    _init: function() {
+        this.parent('', 'media-removable', St.IconType.FULLCOLOR);
+
+        this._notification = null;
+        Main.messageTray.add(this);
+    },
+
+    show: function(message) {
+        let [header, text] = message.split('\n', 2);
+
+        if (!this._notification) {
+            this._notification = new MessageTray.Notification(this, header, text);
+            this._notification.setTransient(true);
+            this._notification.setUrgency(MessageTray.Urgency.CRITICAL);
+        } else {
+            this._notification.update(header, text);
+        }
+
+        this.notify(this._notification);
+    },
+
+    done: function(message) {
+        if (this._notification) {
+            this._notification.destroy();
+            this._notification = null;
+        }
+
+        if (message) {
+            let notification = new MessageTray.Notification(this, message, null);
+            notification.setTransient(true);
+
+            this.notify(notification);
+        }
+    }
+});
+
 const ShellMountQuestionDialog = new Lang.Class({
     Name: 'ShellMountQuestionDialog',
     Extends: ModalDialog.ModalDialog,