[telepathy] [Bug 333829] New: Chat window (ktp-text-ui) hangs when "Application Menu in Window Decoration" is enabled

[Alvaro Manuel Recio Perez]

https://bugs.kde.org/show_bug.cgi?id=333829

            Bug ID: 333829
           Summary: Chat window (ktp-text-ui) hangs when "Application Menu
                    in Window Decoration" is enabled
    Classification: Unclassified
           Product: telepathy
           Version: 0.8.0
          Platform: Kubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: text-ui
          Assignee: kde-telepathy-bugs at kde.org
          Reporter: amrecio at gmail.com

I'm a user of the "Application Menu in Window Decoration" feature as described
by Martin Gräßlin here:
http://blog.martin-graesslin.com/blog/2013/01/4-10-feature-presentation-application-menu-in-window-decoration/.

I recently updated Kubuntu from version 13.10 (Saucy Salamander) to 14.04
(Trusty Tahr), which in turn updated KDE Telepathy to version 0.8.0. From that
moment onwards, whenever I try to open a chat window it "freezes". That is, the
window appears, the toolbar is visible but the contents remain "empty". After a
while, the following error appears:

"org.freedesktop.Telepathy.Error.NotAvailable: Handler no longer available."

After that, the window contents are visible but the window remains "frozen".
Typing is not possible.

I may be wrong but other "requests" seem to be blocked until the error message
appear. For example, trying to close the KDE session or trying to capture a
screnshot by pressing the corresponding hotkey while the chat window is
unresponsive does nothing but the request seems postponed. Once the error
message appear, those requests happen at once.

Reproducible: Always

Steps to Reproduce:
1. Ensure the "Application Menu in Window Decoration" feature is enabled in
System Settings.
2. Open a chat window by double-clicking a contact in KDE Telepathy.
Actual Results:  
An unresponsive chat window is shown.

Expected Results:  
A chat window which actually works should be shown.

The symptons seems identical to those described in Bug #332099
(https://bugs.kde.org/show_bug.cgi?id=332099). The screenshot of the chat
window seems identical to the ones I'm getting.

I've successfully reproduced the bug in a guest session in Kubuntu. As far as I
know, guest sessions use the default configuration so I believe it has nothing
to do with my particular configuration other than the application menu in
window decoration.

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