Bug#569143: libwebkit-1.0-2: dragging images sometimes grabs the mouse cursor forever

Timo Juhani Lindfors timo.lindfors at iki.fi
Wed Feb 10 10:51:15 UTC 2010 

Package: libwebkit-1.0-2
Version: 1.1.20-1
Severity: important

[ Severity set to important since this makes webkit based browsers
unusable on embedded devices that only have touschreen. On the
openmoko freerunner I am forced to remove the battery if I
accidentally drag an image the wrong way and my mouse cursor gets
grabbed. On devices that have a keyboard a user is able to close the
program if he or she is aware of keyboard shortcuts. ]

Steps to reproduce:
1) /usr/lib/webkit-1.0-2/libexec/GtkLauncher http://www.debian.org/logos/openlogo-nd-50.png
2) drag the image around randomly

Expected results:
2) mouse cursor can be used after this experiment

Actual results:
2) Cursor looks like
   ____________
  |
  |     +
  |     +
  | +++++++++
  |     +
  |     +

and other windows do not seem to react to mouse clicks anymore. Also
clicking location bar does not focus the location bar and clicking the
close button in the top right corner has no effect.

The back and forward buttons highlight themselves briefly if clicked
but nothing else happens.

More info:
1) I started xev and it too was unable to receive any mouse events.
2) GtkLauncher prints

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): Gdk-CRITICAL **: gdk_window_get_events: assertion `GDK_IS_WINDOW (window)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(GtkLauncher:4470): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed




-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-trunk-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=fi_FI (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash

Versions of packages libwebkit-1.0-2 depends on:
ii  libatk1.0-0              1.28.0-1        The ATK accessibility toolkit
ii  libc6                    2.10.2-6        Embedded GNU C Library: Shared lib
ii  libcairo2                1.8.8-2         The Cairo 2D vector graphics libra
ii  libenchant1c2a           1.4.2-3.6       a wrapper library for various spel
ii  libfontconfig1           2.8.0-2         generic font configuration library
ii  libfreetype6             2.3.11-1        FreeType 2 font engine, shared lib
ii  libgail18                2.18.6-1        GNOME Accessibility Implementation
ii  libglib2.0-0             2.22.4-1        The GLib library of C routines
ii  libgstreamer-plugins-bas 0.10.25-7       GStreamer libraries from the "base
ii  libgstreamer0.10-0       0.10.25-4+b1    Core GStreamer libraries and eleme
ii  libgtk2.0-0              2.18.6-1        The GTK+ graphical user interface 
ii  libicu42                 4.2.1-3         International Components for Unico
ii  libjpeg62                6b-16           The Independent JPEG Group's JPEG 
ii  libpango1.0-0            1.26.2-1        Layout and rendering of internatio
ii  libpng12-0               1.2.42-1        PNG library - runtime
ii  libsoup2.4-1             2.29.90-1       an HTTP library implementation in 
ii  libsqlite3-0             3.6.22-1        SQLite 3 shared library
ii  libstdc++6               4.4.3-2         The GNU Standard C++ Library v3
ii  libwebkit-1.0-common     1.1.20-1        Web content engine library for Gtk
ii  libxml2                  2.7.6.dfsg-2+b1 GNOME XML library
ii  libxslt1.1               1.1.26-1+b1     XSLT processing library - runtime 
ii  libxt6                   1:1.0.7-1       X11 toolkit intrinsics library

libwebkit-1.0-2 recommends no packages.

libwebkit-1.0-2 suggests no packages.

-- no debconf information

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