Crash when hiding dock with two files open

[Toby Cubitt]

Inkscape version 0.91 compiiled from source with dbus, lcms, nls and openmp support.

OS/platform: Linux/Gentoo

Steps to reproduce:

1. At command line:
$ inkscape file1.svg file2.svg &
-> Inkscape opens but dock is only displayed in one of the two windows
(Note that the bug is NOT triggered if a second file is opened from within Inkscape, only if two files are opened simultaneously from the command line.)

2. Click "iconify dock" button
-> Inkscape crashes with following output:

** (inkscape:32326): WARNING **: master 0xcfc3fa0: unable to add object 0xd8ded30[DialogAlignDistribute] to the hash. There already is an item with that name (0xd231240).

** (inkscape:32326): WARNING **: master 0xcfc3fa0: unable to add object 0xd919b48[DialogExport] to the hash. There already is an item with that name (0xd512730).

** (inkscape:32326): WARNING **: master 0xcfc3fa0: unable to add object 0xd937ee0[DialogFillStroke] to the hash. There already is an item with that name (0xd540d40).

** (inkscape:32326): WARNING **: master 0xcfc3fa0: unable to add object 0xda16558[DialogTransform] to the hash. There already is an item with that name (0xd89ab88).

(inkscape:32326): Gtk-CRITICAL **: IA__gtk_widget_is_toplevel: assertion 'GTK_IS_WIDGET (widget)' failed

(inkscape:32326): Gtk-CRITICAL **: _gtk_container_queue_resize: assertion 'GTK_IS_CONTAINER (container)' failed

(inkscape:32326): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion 'G_IS_OBJECT (object)' failed

(inkscape:32326): Gtk-CRITICAL **: IA__gtk_widget_is_sensitive: assertion 'GTK_IS_WIDGET (widget)' failed

Emergency save activated!
Emergency save completed. Inkscape will close now.
If you can reproduce this crash, please file a bug at www.inkscape.org
with a detailed description of the steps leading to the crash, so we can fix it.

[su_v (suv-lp)]

Please add information about OS/platform to the bug description, thank you.

Could you please attach Inkscape's preferences file to allow further investigation?
Location on Linux/OS X: ~/.config/inkscape/preferences.xml

[Toby Cubitt (tsc25)]

Inkscape preferences.xml attachment.

[su_v (suv-lp)]

Reproduced with Inkscape 0.91 r13725 and 0.91+devel r14275 (on OS X
10.7.5, using GTK+/X11), if one of the SVG documents defines a custom
window size, and does not open maximized (inkscape:window-maximized="0").

Prepare inkscape config:
1) reset Inkscape's prefs to default (rename existing prefs file)
2) launch inkscape once, open a dialog (e.g. 'Layers'), quit

A -- Steps to reproduce:
4) open 'default-1-demaxed.svg' twice via command line:
$ inkscape default-1-demaxed.svg \
           default-1-demaxed.svg

B -- Steps to _not_ reproduce:
3) open 'default-1-demaxed-maxed_again.svg' twice via command line:
$ inkscape default-1-demaxed-maxed_again.svg \
           default-1-demaxed-maxed_again.svg

Diff between the two files:

$ diff -u default-1-demaxed{,-maxed_again}.svg
--- default-1-demaxed.svg 2015-08-05 15:23:31.000000000 +0200
+++ default-1-demaxed-maxed_again.svg 2015-08-05 15:25:07.000000000 +0200
@@ -15,7 +15,7 @@
    version="1.1"
    id="svg8"
    inkscape:version="0.91+devel r14275"
- sodipodi:docname="default-1-demaxed.svg">
+ sodipodi:docname="default-1-demaxed-maxed_again.svg">
   <defs
      id="defs2" />
   <sodipodi:namedview
@@ -35,7 +35,7 @@
      inkscape:window-height="442"
      inkscape:window-x="0"
      inkscape:window-y="0"
- inkscape:window-maximized="0" />
+ inkscape:window-maximized="1" />
   <metadata
      id="metadata5">
     <rdf:RDF>
$

[su_v (suv-lp)]

Full backtrace (debug build r14275, OS X 10.7.5)

[su_v (suv-lp)]

Related later reports (likely duplicates):
* Bug #1499980 “Tool dialogs end up all in one window when opening multiple documents”
  https://bugs.launchpad.net/inkscape/+bug/1499980
* Bug #1540968 “Buggy export png dialog when opening multiple files”
  https://bugs.launchpad.net/inkscape/+bug/1540968