Don't add the container border to the title request size; it
is only used for the child widget.
Don't call gtk_widget_get_preferred_width_for_height() for
the title bar with an unrelated height and subtract the title
bar height before querying the child widget width.
Guard against negative size requests after substracting the
borders/shadows and the title bar.
https://bugzilla.gnome.org/show_bug.cgi?id=751341
In the non-CSD case we checked for 0x0 window size requisition
and replaced it with 200x200 so the window was still visible.
This no longer works in case of CSD as the shadow and title bar
are always added to the requisition resulting in a titlebar/shadow
only window in case there is no child widget (this is currently
visible under wayland or when setting GTK_CSD=1).
Instead of special casing the final window size, special case
the child requisition paths instead. This gives us the same
requisition in both, CSD and non-CSD cases (the header bar
has a too large minimum width atm so the resulting window is
still not the same)
https://bugzilla.gnome.org/show_bug.cgi?id=751341
This error resulted in warnings like
"pixman_region32_init_rect: Invalid rectangle passed"
In case the window is smaller than handle_size * 2 the resulting
edge window got a negative size. Prevent that by limiting the
handle size to half the respective edge length. This also
prevents the corner windows from overlapping in case the window
is too small.
The old should_use_csd() function would return FALSE if the GTK_CSD
environment variable is unset; the change in commit c5e5ee6749
made it return TRUE if GTK_CSD is unset. This has a cascade effect
on the window size, which causes invalid rectangles to bubble down
to Pixman.
https://bugzilla.gnome.org/show_bug.cgi?id=751140
This will be the widget that the popover relates to (::pointing-to in
GtkPopover, ::parent in GtkTextHandle).
Additional API to check the popover/parent relationship between widgets
has been added, which will be useful wherever this is necessary in a
generic manner.
https://bugzilla.gnome.org/show_bug.cgi?id=750993
The change in 03213b9509 changed the rules
as to when CSD can be enabled, but it also unconditionally enables CSD
with the implicit assumption that client-side shadows were the real
issue, and that we could work around that by drawing our own borders.
This also means that setting a titlebar for a GtkWindow will enable CSD
unconditionally.
In reality, some window managers (like Matchbox) *only* support
server-side decorations, and will ignore all hints to the contrary, to
the point of drawing decorations at random locations on top of the
window.
Since CSD are enabled unconditionally, the GTK_CSD environment variable
is also not a suitable escape hatch.
In the grand tradition of asking ourselves if we should do something
just because we can, we should split the environment checks from the
checks on what the user requested; by doing that, we can also check
when enabling client-side decorations, and ideally bail out if needed.
https://bugzilla.gnome.org/show_bug.cgi?id=750343
Even if a window doesn't support client side shadow
(gtk_window_supports_client_shadow returns FALSE), don't assume the
shadow width is zero, as CSD may have been enabled anyway (meaning
priv->client_decorated is TRUE). In that case we still need to report
the correct width.
https://bugzilla.gnome.org/show_bug.cgi?id=749451
If CSD is enabled with shadow even though it "shouldn't"*, the width
should still be calculated correctly. This fixes a regression caused by
b1e5ad469c.
* gtk_window_should_use_csd () returns false
https://bugzilla.gnome.org/show_bug.cgi?id=748615
The window state 'client_decorated' will only be set the window is being
realized. If anyone tries to get the shadow size before that it'd get
the with as if there always was no shadow.
This avoids negative sized opaque regions caused by the allocation being
smaller than shadow.
https://bugzilla.gnome.org/show_bug.cgi?id=748615
Requires Vista and newer.
* Create surfaces with cairo_win32_surface_create_with_format
* Provide an rgba visual that can be distinguished from the system visual
* Make rgba visual the best available visual
* Enable alpha-transparency for all windows that we control
* Check for appropriate cairo capabilities at configure time
(W32 - 1.14.3 newer than 2015-04-14; others - 1.14.0)
* Check for composition support before enabling CSDs
* Re-enable transparency on WM_DWMCOMPOSITIONCHANGED
Windows that were created while composition was enabled and that were CSDed
as a result and will look ugly (thick black borders or no borders at all) once
composition is disabled.
If composition is enabled afterwards, they will return back to normal.
This happens, for example, when RDP session is opened to a desktop where a GTK
application is running. For W7/Vista windows will only re-gain transparency after
the RDP session is closed. For W8 transparency will only be gone momentarily.
Windows that were created while composition was disabled will not be CSDed
automatically and will use SSD (WM decorations), while windows that are CSDed
manually will get a thin square border.
If composition is enabled afterwards, these windows will not change.
This is most noticeable for system menus (popup menus are often generated
on the fly, system menus are created once) and some dialogues (About dialogue,
for example).
https://bugzilla.gnome.org/show_bug.cgi?id=727316
Instead of issuing g_warning, fill the provided GError.
This lets us test this error handling, and is the right
thing to do. Use the new GtkBuilder helpers and
g_markup_collect_attributes to do so.
To calculate the shadow width, we look at the value of priv->fullscreen
and priv->maximized.
Those fields will have the actual value only after GTK receives back a
window state event though, so they will be wrong in _realize(). Look at
priv->fullscreen_initially and priv->maximize_initially too, to avoid
the size changing right after realize, which would make the window
flicker if maximized at startup.
https://bugzilla.gnome.org/show_bug.cgi?id=747808
It turned out that using mwm hints to instruct wms to
create border-only decorations is not really working
universally. So, instead of doing this, render a solid
frame without shadow on the client-side to handle this
case.
https://bugzilla.gnome.org/show_bug.cgi?id=746222
Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
On popover_unmap(), perform the gtk_widget_unmap() call last, so the
GtkWindowPopover data is ensured to be alive throughout the function
if the popover widget is destroyed right on ::unmap.
https://bugzilla.gnome.org/show_bug.cgi?id=745829
Now that this is split in two separate gestures, both must be reset
when the WM grabs the pointer. Also, do on resize drags like on move
drags, and claim the gesture before resetting, so the ownership is
properly transferred across any other widgets.
https://bugzilla.gnome.org/show_bug.cgi?id=745969
This reverts commit fb9a6bb6d8.
In a recent test, I've found that Xfce and Mate now support
this, so they will not be affected by this requirement. And
adding the check back will solve the 'client-side shadow'
problem in KDE.
Postpone until the last moment whether the target widget still
potentially uses updates from this sequence, or window dragging
actually applies because all gestures on the target went to denied
state.
This fixes window dragging on empty space in a headerbar that is
contained in a paned (as in e.g. gedit).
https://bugzilla.gnome.org/show_bug.cgi?id=745562
The gesture is hooked to the capture phase, so it works for buttons in
header bars and whatnot. In order to be friendly to the widget it is
capturing events from, an ugly hack is in place to avoid capturing
events when the target widget has a gesture that would consume motion
events.
is_visible() wasn't the right check to perform here before unmapping,
and gtk_widget_unmap() already avoids being doubly called by checking
gtk_widget_get_mapped() anyway.
If the grab belongs elsewhere, the window won't claim the sequence right
away. The sequence may still be claimed afterwards when window dragging
starts, but simple clicks won't be consumed this way.
This makes it possible to close popovers when clicking on the title region,
while still permitting touch/button 1 interaction for every other purpose.
https://bugzilla.gnome.org/show_bug.cgi?id=743257
On the wayland backend, set up GDK_WINDOW_SUBSURFACE windows
for popovers. In the popover code, the popover-relative-to-parent
calculation had to be tweaked, and it's been made to always prefer
the given popover position, since there's no sizing limitations.
https://bugzilla.gnome.org/show_bug.cgi?id=738891
Currently we only take into account the window GActionGroup for
activating the accels.
However, the application could have some custom GActionGroup in the
chain of focused widgets that could want to activate some action if
some accel is activated while that widget is focused.
To allow applications to set accels on widgets that use custom
GActionGroups, simply use the muxer of the focused widget, which
already contains the actions of the parents.
https://bugzilla.gnome.org/show_bug.cgi?id=740682
This event might not have an action yet, but certainly accounts, and
should be triggering recognition.
This fixes a crash when attempting to drag CSD windows through touch. As
since cfaec2d2f5, gtk_gesture_single_get_current_sequence() would
rightfully return NULL if the gesture didn't enter recognition, making
event lookup fail.
Under wayland, the compositor doesn't have a 'overall window alpha'
knob, we just need to add the alpha to the buffers we send.
Client-side alpha, if you want to call it that.
Implement this by reusing the existing alpha support for non-toplevel
widgets. As a side-effect of the implementation, windows with RGBA
visual under X will now also use per-pixel alpha, instead of
overall alpha.
When the window is on a non-default screen, popover_realize
ended up passing a visual and a parent_window from different
screens into gdk_window_new, which doesn't work. Fix it by
using the visual of the parent window.
When a new screen is set on a window, we unrealize it, to
recreate all the resources. But we don't reset the client_decorated
flag, so realize() doesn't call create_decoration() - which makes
sense, since the decoration already exists. But the side-effect
of create_decoration() is to select the rgba visual, and visuals
are per-screen.
Fix this by looking for the rgba visual in set_screen(), and
replacing it with the rgba visual for the new screen, if necessary.
When gtk_window_set_titlebar (win, NULL) is called, we were taking
an early exit and forgot to re-map the window. This does not normally
happen in practice, but glade is about to get a 'csd' switch which
lets one toggle back and forth between titlebar and no titlebar.
If the menubar has an app-menu popover, and it is shown at the time of
disposing the window, it will attempt to transfer focus back to the
previous focus widget when undoing modality, even though the dispose()
code already did set_focus(NULL) previously.
At the time the popover is removed, there aren't many hints as to whether
the toplevel or the focus widget are being destroyed (ie. not still under
in_destruction), so just swap the order of these two calls.
For every other popover, this would all happen within dispose/destroy,
which is handled better.
Binding signals can return a boolean indicating whether they
handled the event. Use that here and return FALSE if the
inspector keybinding is disabled.
Instead of hardcoding these actions, consult the settings.
Note that not all of the actions supported by gnome-shell are
implemented here, only maximize, minimize, lower, and menu.
https://bugzilla.gnome.org/show_bug.cgi?id=729782
This gives an opportunity for implementations to handle these events
differently, instead of hardcoding the WM-triggering behavior.
gtk_window_event() only forwards events for WM management if the event
widget is not the window (ie. caught when bubbling), so is safe to be
called here without triggering gtk_window_handle_wm_event() twice.
This commit is an adaption to master of
https://bugzilla.gnome.org/show_bug.cgi?id=736702#c1 by Cosimo Cecchi.
Otherwise, they might not be properly set before the window is mapped.
For the opaque region and border window, it means that they won't get
set before the next size allocation, which tends to not be a bit deal.
For the shadow width, though, _GTK_FRAME_EXTENTS has a different meaning
when it's set before the window is mapped, so we need to make sure that
it's properly set when the window is mapped.
When GtkApplicationWindow has a menubar, we don't chain up
to the GtkWindow size_allocate, which used to position the
popovers. Move that to _gtk_window_set_allocation() which
is always called by GtkApplicationWindow.
https://bugzilla.gnome.org/show_bug.cgi?id=736205
This must be called while the window is not realized yet, and sets the
GdkWindow that will be used for the next GtkWindow's realize/unrealize
cycle. The GtkWindow takes ownership on the GdkWindow, and as such it
will be destroyed when the widget is unrealized.
https://bugzilla.gnome.org/show_bug.cgi?id=697855
This is a rather hackish way to let GTK+ widgets declare popup windows
as subsurfaces, so they may work on wayland without the need of xdg_popup,
and without many changes yet on the GTK+ side.
https://bugzilla.gnome.org/show_bug.cgi?id=695504
Popovers may get relocations optimized away if only x/y changed
in the GtkAllocation. So make sure the toplevel updates popover
positions on all situations.
https://bugzilla.gnome.org/show_bug.cgi?id=729140
If the same position is requested on a popover, it should at least ensure
the window is realized and raised, even if no resizes are queued on the
content. Otherwise other widgets being mapped might raise the windows over
the popover's if its original position is unchanged.
https://bugzilla.gnome.org/show_bug.cgi?id=734129
So far, gtk_window_set_focus just did not work when called on
a hidden window. Change it to record the desired focus widget
for hidden windows, and apply it when the window gets shown.
This is similar to how we tread other window properties that
can't be set before the window is realized, like maximized
or fullscreen.
This is related to
https://bugzilla.gnome.org/show_bug.cgi?id=734033
Don't shadow existing variables. Instead of sharing the allocation and
then overwriting the width/height when convenient, declare it in the
block we use it in, as, really, the three different paths are all
extremely different, and there's no sense in sharing the variable.
It's hard to figure out what the "expected_reply" means except under
close examination -- it's actually talking about whether this was a
reply to a ConfigureRequest or not. The inversion in the check doesn't
help either.
Make the code cleaner by moving it above the freeze/thaw case, and
making the check more explicit and without a confusing variable. If we
haven't sent any ConfigureRequests out, then it must be a gratuitous
ConfigureNotify.
Keep Ctrol-Shift-D as a straight toggle-the-inspector keybinding,
but make Ctrl-Shift-I always bring up the inspector, and point
it at the widget under the pointer.
Resize grips were introduced for GNOME 3.0, before we had any of the
"new GNOME app" features like invisible borders and CSD. With OS X 10.6
and 10.7, Apple has replaced the classic grips in their applications
with invisible borders as well.
New GNOME app designs don't use resize grips anymore and the new
default theme for GTK+, Adwaita, disables them entirely by forcing their
width and height to 0.
They're past their time. Remove the code to support them. This can
always be reverted if some app relies on them.
When showing and hiding the inspector window repeatedly without
dismissing the dialog, we were hiding the inspector, but not
the dialog, leading to a confusing user experience.
https://bugzilla.gnome.org/show_bug.cgi?id=732443
Since we have a paint clock, we shouldn't be sending out EXPOSE events
for OR windows inside the ALLOCATE cycle. The idea here was that we
would have to wait for a map to get an OR window to paint to, but since
then this has been abstracted away inside GDK and the paint clock.
We already update the grip position in _gtk_window_set_allocation, which
is done through the size_allocate above. Receiving a ConfigureNotify
also won't ever change a grip's visibility, so there's no point in
refreshing it.
This way plain clicks can be handled in gtkmain through the usual delivery mechanism,
and get possibly handled too by widgets holding a GTK+ grab. If window dragging is to
be started, the sequence will be claimed (and a grab will happen afterwards), notifying
properly the grabbing widget that event delivery was interrupted.
This makes it possible to dismiss popovers by clicking on window headerbars, while
still making it possible to drag the window with the popover opened.
For csd override-redirect windows, we don't set up resize handles,
but we were not ignoring the margin in all places, causing some
size calculations to go wrong.
This commit makes it possible to use client-side decorations for
override-redirect windows by calling _gtk_window_request_csd()
before realizing the window. Since the wm won't do interactive
resizing for us in this case anyway, don't bother creating
the border windows we use for this purpose on regular toplevels.
To make this accessible to themes, we set a "csd" style class
on client-side decorated windows. With this, .window-frame.csd.menu
can be used to define the shadow for csd menus, and .menu can be
used to define a border for menus under non-composited wms.
https://bugzilla.gnome.org/show_bug.cgi?id=731187
Every button press/release event reaching the the multipress gesture in GtkWindow
and happening in the "title" region must be handled, regardless of the event widget.
Children there wanting the event(s) for themselves are (and were always) expected
to stop event propagation.
So the only place to check for the event widget's "window-dragging" style property
is the "content" region, which matches the pre-gestures behavior.
This fixes some issues with sequences being mistakenly claimed (and events not
propagated further) on situations it shouldn't.
The multipress gesture must react to either direct events on the
GtkWindow (special cased through _gtk_widget_check_handle_wm_event),
or bubbled events from child widgets. Ensure bubbled events go
through the gesture, those are fed manually to make sure events are
only handled once, in either one or other place. The implicit grab
will ensure that doesn't change mid-action.
The events to those are fed outside the regular event propagation scheme,
through _gtk_window_check_handle_wm_event(), so set the controller to
GTK_PHASE_NONE so events aren't processed first manually, and then
automatically.
Event controllers now auto-attach, and the GtkCapturePhase only determines
when are events dispatched, but all controllers are managed by the widget wrt
grabs.
All callers have been updated.
The propagation phase property/methods in GtkEventController are gone,
This is now set directly on the GtkWidget add/remove controller API,
which has been made private.
The only public bit now are the new functions gtk_gesture_attach() and
gtk_gesture_detach() that will use the private API underneath.
All callers have been updated.
A multipress gesture is used to control all this, replacing
single/double click custom code, and triggering window dragging
when the multipress is stopped, yet active (ie. the sequence remains
pressed).
This avoids a bunch of policy problems with deciding how to lay
out the window menu under different WMs.
For now, we use the special event _GTK_SHOW_WINDOW_MENU, but we
hope to have this standardized in wm-spec quite soon, as KDE wants
it as well.
With the keybinding, it is possible that users may trigger the
inspector unintentionally. Show a dialog that informs them about
whats going on and gives them a chance to back out.
The warning dialog can be bypassed with the
org.gtk.Settings.Debug inspector-warning setting.
Moving the inspector into libgtk lets use reuse internals without
having to add public API for everything or inventing awkward private
call conventions.
https://bugzilla.gnome.org/show_bug.cgi?id=730095
We are keeping references on the widget we are handling as we
are iterating up, but that doesn't protect us against the entire
tree being axed from inside gtk_widget_handle_event.
https://bugzilla.gnome.org/show_bug.cgi?id=727644
We are getting bug reports from people who are irritated that
dialogs now have 'double headers' under any wm but gnome-shell.
As an example, xfwm4 seems to do ok with csd windows, and
on balance it seems better to have some invisible border issues
than to have double headers.
https://bugzilla.gnome.org/show_bug.cgi?id=727414
Setting windows undecorated was broken by some of the recent
shadow width changes. We need to ensure that shadow width is
zero for undecorated windows, then things work again.
If the delete event ends up destroying the widget, unsetting
priv->delete_event_handler will happen on invalid memory, so
unset it before the widget is possibly destroyed.
https://bugzilla.gnome.org/show_bug.cgi?id=726825
We did not set an input shape on the window, so the region outside
the invisible border where we draw the outer edges of the shadow
were still part of the window, as far as clicks and cursors were
concerned. Fix this by setting an input shape that makes all clicks
outside of the resize borders go through to the underlying window.
https://bugzilla.gnome.org/show_bug.cgi?id=726125
As those are internal children, there's no signal that GtkWindowAccessible
could catch when those are added or removed, so make GtkWindow use the private
GtkContainerAccessible methods to add/remove the child accessible when that
happens.
https://bugzilla.gnome.org/show_bug.cgi?id=725864
As discussed on desktop-devel-list [1], "There should be an intuitive,
consistent, immediate way to jump to the widgets that live in the
header bar." F10 has been suggested for this as it is already used to
active menubars.
F10 will focus the custom titlebar widget if the window has one and it
isn't already focused. If the titlebar widget doesn't exist or is
already focused then F10 focuses the menubar if there is one.
[1] https://mail.gnome.org/archives/desktop-devel-list/2014-February/msg00176.htmlhttps://bugzilla.gnome.org/show_bug.cgi?id=725141
It turns out popovers are already smart enough to cope with this
situation, so let popovers be internal children so things that rely
on gtk_container_forall(), like DnD, work without modifications.
https://bugzilla.gnome.org/show_bug.cgi?id=725727
c287845240 was trying to fix
the memory leak caused by popovers begin destroyed in
gtk_window_destroy before chaining up to gtk_widget_destroy,
which unrealizes the window, and would clean up the popover
windows if the popovers were still around.
Fix this in a better way by moving the popover destruction
after the chaining up, so we unrealize first, and then
destroy the popovers.
Also, make _gtk_window_remove_popover unrealize the popover,
for symmetry with _gtk_window_add_popover.
This should fix
https://bugzilla.gnome.org/show_bug.cgi?id=724921
Dragging windows was not working on widgets in the titlebar
region unless they had the window-dragging style property
set. Fix this by looking at the region for motion notify
events as well as for buton press events.
Try to do a better job of keeping example content
from being too wide. It is often rendered as <pre>
text so the only time we can wrap it is in the source.
It is best to full break lines at all punctuation and
to try to keep the width under 70 chars or so.
Heavy duty can prevent this idle function from being called before
the window is destroyed, so make sure that the source is removed
when the window is finalized.
https://bugzilla.gnome.org/show_bug.cgi?id=723771
Since realize does a lot of the heavy lifting of setting up
csd, we have to re-realize the window if we go from no-custom
titlebar to a custom titlebar or vice versa.
https://bugzilla.gnome.org/show_bug.cgi?id=722919
When gtk_window_set_titlebar is called, we need to set up
client-side decorations properly, and the easiest way to do
so is to realize the window again. Really, you should call
set_titlebar before the window is realized.
https://bugzilla.gnome.org/show_bug.cgi?id=722919
GtkWindow has 4 (!) APIs for setting window icons, and we
have to try them all in the right order to find the right
icon. This commit makes it so, and keeps the icon list
manipulation inside gtkwindow.c by adding a private API
for getting a single icon at the right size.
https://bugzilla.gnome.org/show_bug.cgi?id=722515
When all popovers are removed on destroy(), if a popover is nested into
(eg. with relative_to within) another popover, the removal of one can
lead to the other being removed while the hashtable is being iterated,
which would lead to undefined behavior in further iterations.
Then, use a GList to store popovers, iterating can be made more resilient
on these situations, and unless on pathological cases there's not going
to be as many of those popovers as to cause performance decreases at the
times those are iterated.
The popovers may return keyboard grabs to previous widgets, so if
called after unsetting the focus, the window may be left with a
dangling GtkWidget that would cause crash at later dispose() calls.
Popovers are strange in the sense that they aren't attached to a
parent directly, they rely on the relative_to widget so the toplevel
is shared, and when they have a parent, it is the toplevel itself,
not relative_to. This also means that there are conditions where the
popover loses it's parent, so they must survive unparenting.
The previous code would be floating the last reference as soon as the
parent is gone, but it was non-obvious who'd own that reference. So
fix this situation by granting the ownership of popovers to their
relative_to widget, an extra reference may be held by the toplevel
when the popover has a parent, but the popover object will be
guaranteed to be alive as long as the parent lives.
This way, memory management of popovers is as hidden from the user
as regular widgets within containers are, users are free to call
gtk_widget_destroy() on a popover, but it'd eventually become
destructed when relative_to is.
This makes it possible to move/resize client-side decorated windows that are
otherwise obscured by a GTK+ grab somewhere else, either a popover within the
window itself or a modal dialog above the window.
Popovers are transient floating widgets that are confined to the
window space. These have their own GdkWindow that is set on top
of the regular window contents, so they can be used for popup menu
alike UIs with custom popup/popdown/grabs behavior.
With proper notifications, plus an accessor method for that state. This
allows client to just listen to notify::is-maximized instead of tracking
window-state-event.
https://bugzilla.gnome.org/show_bug.cgi?id=698786
