This lets us do fallback in case an image format is not
supported, and also lets us provide solid-color images.
We don't support image fragment notations.
See ttps://www.w3.org/TR/css3-images/#image-notation
https://bugzilla.gnome.org/show_bug.cgi?id=761318
Instead of spamming stderr with g_warning, use the new
emit_error method of the GtkStyleProviderPrivate interface
to emit an error if loading an image fails.
Currently, GtkCssProvider can emit ::parsing-error only during
the actual parsing, although the documentation hints that it might
happen at other times.
This commit adds a emit_error method to the GtkStyleProviderPrivate
interface that will let us emit errors from the compute() implementations
as well, which can be useful (e.g. if an image fails to load).
In some situations (no header bar, save mode), hitting Escape
would not do anything because the entry ate the key event.
Fix this by telling the entry to only handle Escape when there
is something to do, such as switching back to the path bar.
https://bugzilla.gnome.org/show_bug.cgi?id=761026
We should not hardcode a scale of 1, this leads to
pixellated upscaled images at scale=2, even if the source
is an svg. By passing the proper scale, we can load the
svg at the correct size.
When creating icon info objects for unthemed files, we don't
really have a nominal size, so we pass 0 to mean 'load at
original size'. However, this is not what was happening.
To make this possible, add variants of some pixbuf loading
functions that take a scale factor instead of a desired size,
and use those when we don't have a nominal size.
Eventually, we should probably remove the examples that rely
on geometry support, since they probably don't work correctly
anymore. For now, just disable the warnings.
Grabbing must stay a bit longer until all other backends than x11/wayland
catch up with GDK DnD, so ignore deprecation flags are used on those. The
uses of GdkDeviceManager can be entirely avoided though.
People might put all sorts of gunk in their .XCompose file, in
the hope that XLib makes sense of it. Even if we don't make sense
of it, we shouldn't abort, but instead ignore the lines we can't
understand. Pointed out in
https://bugzilla.redhat.com/show_bug.cgi?id=1301254
We connect to the titlebar widgets change notification regardless
whether it is internally created or not, so don't make the signal
handler disconnection conditional on that either.
We need to unset the titlebar manually before chaining up
in destroy, otherwise we trigger the template invariant
checking - GtkWindow would eventually unset it, but too late
for the invariants checking code in gtk_widget_destroy.
Presently, Gtk will only send a startup notification completion message
for the first window that is shown. This is not good for the case of
GtkApplication, where we are expected to participate in
startup-notification for all windows.
We have avoided this problem by manually emitting the startup complete
message from after_emit in GtkApplication.
Unfortunately, this causes problems for windows that are shown with a
delay. It is also a dirty hack.
The reason for the original behaviour is simple: there is a static
boolean in gtkwindow.c which controls it. We remove this.
Instead, clear the startup notification ID stored in GDK when sending
the completion message. GtkApplication will re-set this the next time
an event comes in which needs startup-notification handling. In the
non-GtkApplication case, newly shown windows will still not send the
message, since the cookie will have been cleared.
Finally, we remove the hack from GtkApplication's after_emit.
This will probably cause some regressions in terms of lingering startup
notification messages. The correct solution here is to always use
gtk_window_present(), including when merely opening a new document (with
a new tab, for example).
https://bugzilla.gnome.org/show_bug.cgi?id=690791
