Instead of queueing a new idle handler every time we call
gtk_window_update_debugging(), only queue one if none is queued that.
Saves a lot of work, in particular when templates create context menus
for every row in a large listbox as in the gtk-demo listbox example.
This ensures that windows appear in the inspectors tree when
they are created, and it prevents GTK_DEBUG=interactive from
coming up with an empty object tree.
https://bugzilla.gnome.org/show_bug.cgi?id=752664
The previous fix was falling into the crack between
realized and mapped - we would apply the state when a window
is just realized, then unset the _initially flag, and then
when the window gets mapped, we'd undo the state. To fix
this, go back to the way things were when these flags were
first introduced.
https://bugzilla.gnome.org/show_bug.cgi?id=752765
Go back to use these variables only for pre-mapped state changes.
Their use got muddied over the years, and it was hard to keep track
of what is acutal state, and what just a queued request.
1. This confuses the code as it's using the old type hint with the new
type hint on GDK window creation
2. It only existed as a workaround for old code that directly accessed
window->type_hint which hasn't been possible since 3.0.
This behavior has been made optional on add_popover() time, text handles
will keep being able to overflow the window, in order to allow text
selection on views too close to the window edge.
Regular GtkPopovers are reinstaurated to the previous size positioning
logic though, that is, limited by the visible area of the window.
Under Wayland, fullscreen/maximized windows may not cover the entire
area when a size increment is specified.
Ignore size increments for fullscreen/maximized windows just like most
window managers do under X11 so that windows with size increments can
still be fullscreen or fully maximized under Wayland as well.
https://bugzilla.gnome.org/show_bug.cgi?id=751368
Since 740bcf5, we use these properties to properly compute shadow widths
for unmapped windows. If a client calls gtk_window_maximize and a window
manager unmaximizes a window, we should draw borders, so we need to
reset these when we get the property notification.
This queues an unnecessary resize on the toplevel, and is not needed
anymore, now that GtkWidget does not call
gtk_style_context_set_background() on the window's GdkWindow anymore.
The WM isn't aware of O-R (popup) or offscreen windows. If somebody
maps an offscreen or a popup GTK+ window before the main window, we'll
complete the sequence before a "real" window is mapped. Make sure to
ignore these for startup notifies.
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
