In gtk_container_real_set_focus_child(), we try to scroll to the
position of the new :focus-child if we have h or v adjustments.
gtk_widget_translate_coordinates() returns FALSE if neither widget is
realized or in other situations that cause output parameters x and y not
to be set. Thus, if the caller did not initialise x/y and uses them even
if the function returns FALSE, they are using uninitialised variables.
In gtk_container_real_set_focus_child(), we did not check the return
value but merrily went ahead and used x and y regardless. This is UB, as
caught by Valgrind, as well as being pointless.
The trivial fix is to exit early if (!gtk_widget_translate_coordinates).
https://bugzilla.gnome.org/show_bug.cgi?id=776909
This fixes a fallout from 8a7d0ab481 where the error wasn't being
set when a display couldn't be opened right after parsing the
commandline.
It also fixes an older bug where the error would be left unset if the
commandline had already been parsed before (ie. when gtk_initialized
is TRUE).
https://bugzilla.gnome.org/show_bug.cgi?id=771959
The existing documentation seems to suggest that gtk_init_check will
ignore any failure to parse the commandline arguments, and that its
return value only depends on its ability to initialize the windowing
system. That's not true.
Be more explicit to avoid misunderstandings.
https://bugzilla.gnome.org/show_bug.cgi?id=771959
process-stop-symbolic is unintuitive if represented as a stop sign as in
Adwaita, and completely ambiguous if represented as a cross like the
window close button in other icon themes.
Instead, use application-x-executable, which is already used elsewhere
as a fallback if no specific icon can be found for the application.
https://bugzilla.gnome.org/show_bug.cgi?id=784624
Don't beep when modifiers are released in entries.
This was an inadvertent change that snuck in with
the emoji support.
Also, don't beep while entering an emoji name.
There is entirely too much beeping here.
In GTK+ 2, the ch < 0x80 was ORd with klass->latin1_to_char, and that
was unconditionally set to TRUE in the class init function, so
effectively the ch < 0x80 never mattered before or served any purpose.
When klass->latin1_to_char was deleted from the class in commit
f760538f17, this check’s sense changed.
The resuls was that accel keyvals with gunichar value >= 0x80 stopped
being rendered as symbols, instead falling back to their keysym name.
Instead of recognisable symbols for these, we get raw, often obscure,
and untranslatable keysym names. This breaks accessibility as well as
client users who may be parsing such accels and migrating from GTK+ 2.
So, remove the < 0x80 to restore the behaviour from before said commit.
https://bugzilla.gnome.org/show_bug.cgi?id=783906
This commit adds some basic support for entering emoji by name
to GtkIMContextSimple. To begin an emoji sequence, use Ctrl-Shift-e
instead of Ctrl-Shift-u that is used for hex input. Otherwise, the
behavior is the same: you can can let go of the modifier keys and
end the sequence with space or enter, or hold on to the modifier
keys and end the sequence by releasing them.
Only a limited, fixed set of names is supported at this time, see
the GtkIMContextSimple docs for a full list.
• Add GtkLayout as a @See_also since it includes fixed-pos functionality
• Drop mention of the long-gone Linux framebuffer port
• Explain how to work around the problems with RTL text
Being addable to a ScrolledWindow is not interesting; now that SW
auto-adds a Viewport if needed, so can DrawingArea and any other widget.
Mention GtkFixed in case the reader just wants that bit of functionality
This adds support for the shortcut inhibitor protocol in gdk/wayland
backend.
A shortcut inhibitor request is issued from the gdk wayland backend for
both the older, deprecated API gdk_device_grab() and the new gdk seat
API gdk_seat_grab(), but only if the requested capability is for the
keyboard only.
https://bugzilla.gnome.org/show_bug.cgi?id=783343
If query.return_type is not one we want, binding_compose_params() is
not called, and so params remains a NULL pointer. However, the code was
then unconditionally iterating it regardless. Don't if it is still NULL.
CID 1452218 (#1 of 1): Explicit null dereferenced (FORWARD_NULL)
15. var_deref_op: Dereferencing null pointer params.
This would only happen if the last element was deprecated, but it should
be avoided anyway.
CID 1388852 (#1 of 1): Out-of-bounds read (OVERRUN)
12. overrun-local: Overrunning array pseudo_classes of 16 32-byte
elements at element index 16 (byte offset 512) using index i + 1U (which
evaluates to 16).
This function clearly assumes the parameter children cannot be NULL, and
the call sites seem to perform enough checks to confirm this.
CID 1388869 (#1 of 1): Dereference before null check (REVERSE_INULL)
check_after_deref: Null-checking children suggests that it may be null,
but it has already been dereferenced on all paths leading to the check.
CID 1432024 (#1 of 1): Uninitialized scalar variable (UNINIT)
2. uninit_use_in_call: Using uninitialized value rect.x when calling
calendar_arrow_rectangle.
Add a default case to the switch which will bail out with
g_assert_not_reached(), which should reassure Coverity that the method
is always called with a valid value that is handled in the switch.
If value->values[i] is NULL, then values[i] was left uninitialised.
The code then reads each element of values[].
CID 1432029 (#1 of 1): Uninitialized pointer read (UNINIT)
11. uninit_use: Using uninitialized value values[i].
Our ::query-tooltip handler first checks whether the pointer is over any
of the icons, returning their tooltip if so, and if not chains up to
Widget::query-tooltip in order to show the text for the widget overall.
But ensure_has_tooltip(), which exists to update :has-tooltip based on
whether ::query-tooltip is needed, only set :has-tooltip to TRUE if any
icon had a tooltip, without caring whether the widget as a whole does.
That is asymmetrical and meant that if the Entry had a tooltip, but
subsequently all icons had their tooltips unset, :has-tooltip would be
set to FALSE, and hence the tooltip for the widget would become lost.
The fix is to set :has-tooltip to TRUE if the widget has a tooltip of
its own, and we only need to check the icons if that is not the case.
https://bugzilla.gnome.org/show_bug.cgi?id=785672
This was comparing the input position, which is documented as being
relative to the top-left of the Entry allocation, to icon allocations
that were not adjusted accordingly. This could result in tooltips for
icons not being shown in various conditions, since the ::query-tooltip
handler uses get_icon_at_pos() to check whether to show an icon tooltip.
The fix is to compare to the icon border box, not border allocation, as
CssGadget::get_border_box() adjusts relative to the widget. Better yet:
we can just make CssGadget::border_box_contains_point() compare for us.
Delegating to Entry::get_icon_area(), which manually reimplements
CssGadget::get_border_box(), would also work, but this is simpler.
https://bugzilla.gnome.org/show_bug.cgi?id=780938
Just to test tooltips in all cases; what was already here
should have been sufficient, but this doesn't hurt.
While here, also add some instructive placeholder text.
https://bugzilla.gnome.org/show_bug.cgi?id=780938
We can e.g. get the entry dispose()d and a focus_out event after that
(because the toplevel unsets the focus which previously was the entry).
We then later use priv->current_pos in a call to pango API which makes
sure the given index is valid for the given layout. Since we lazily
create a GtkEntryBuffer in get_buffer() and a PangoLayout lazily in
gtk_entry_create_layout, these 2 are always valid but don't match
priv->current_pos in this situation.
Fix this by resetting priv->current-pos in dispose().
https://bugzilla.gnome.org/show_bug.cgi?id=785255
There's GDK grab situations (eg. pointer motion outside the grab window
in combination with a GTK+ grab) where a gesture may receive events from
windows that are not the widget's.
The _update_widget_coordinates() still does work for those situations, so
just let these events go through instead of ignoring them.
https://bugzilla.gnome.org/show_bug.cgi?id=782870
Refactor the code updating the active link under the current coordinates
into a separate function, and call it on GtkGestureMultiPress::pressed
so the link is updated on GDK_TOUCH_BEGIN. Based on a patch by
Jan-Michael Brummer <jan.brummer@tabos.org>.
https://bugzilla.gnome.org/show_bug.cgi?id=776903
Setting the cursor on the widget window (i.e. the parent widget's) is
finicky because the cursor needs to be updated on crossing events, and
will yield the wrong result for other master devices that happen to be
in other areas of the same parent widget's window.
Just set it always on the event window created by the GtkButton parent
class. That window was causing the crossing events, so the rectangle
that gets the hand cursor set will be the same size, and we don't need
to track pointer crossing state that way.
https://bugzilla.gnome.org/show_bug.cgi?id=785375
