The previous tiling state of a grabbed window should be restored
if the drag operation is cancelled (by hitting the Escape key).
This might involve to meta_window_tile(), so export the function
in window-private.h.
https://bugzilla.gnome.org/show_bug.cgi?id=639988
GtkStyle has been deprecated in favor of GtkStyleContext. A full
port would involve replacing GdkColor with GdkRGBA - leave this
out for the time being.
Bump the required version of GTK+.
https://bugzilla.gnome.org/show_bug.cgi?id=637761
We want switching between the windows of an application to be an easily
accessible operation. The convenient and memorable keybinding is the
key above the tab key - but the keysym for that key isn't consistent
across different keyboard layouts.
Add code that figures out the key from the XKB geometry and a magic
keysym name "Above_Tab" that refers to this key and switch
the default binding for cycle_group to <Alt>Above_Tab. (This will
have no effect for the normal case of getting the key binding from
GConf until this patch is applied to Metacity as well.)
https://bugzilla.gnome.org/show_bug.cgi?id=635569
It may be desirable for theme authors to treat side-by-side tiled
windows differently, for instance to give the edge-touching border
a width of 0, so add additional frame states for tiled windows.
https://bugzilla.gnome.org/show_bug.cgi?id=637330
With the existing background functions, single buttons can not be
styled separately - on the left side, the style of the left button
is picked, and the right button's style on the right side.
As theme authors may want to add rounded corners to button groups
as a whole, it makes sense to treat the case of a single button in
a group differently.
https://bugzilla.gnome.org/show_bug.cgi?id=635683
When validating button functions and frame styles, the required
format version of the features used in the theme was compared to
the major version number of the supported format, limiting additions
to major theme format bumps.
Use peek_required_version() instead, so the minor version number
of the supported theme format is taken into account.
https://bugzilla.gnome.org/show_bug.cgi?id=635683
While the configured layout is taken into account for positioning
the buttons, the mapping from button function states to button
position states just assumed the default button layout in LTR
locales.
Do a proper mapping depending on the actual layout instead.
https://bugzilla.gnome.org/show_bug.cgi?id=635686
This patch removes the ability to disable compositing in mutter. As
clutter compositing was the reason for the fork from metacity, turning
compositing off does not make sense.
https://bugzilla.gnome.org/show_bug.cgi?id=626875
To deal with reentrancy from compositor plugins doing things like
moving windows between workspaces in an effect callback, update
the visible_to_compositor flag before calling into the compositor.
https://bugzilla.gnome.org/show_bug.cgi?id=613124
When a compositor is present, we keep the visibility state of the
compositor windows in sync with window->visible_to_compositor. We need
to do the same when enabling the compositor.
https://bugzilla.gnome.org/show_bug.cgi?id=613124
* GL_TEXTURE_RECTANGLE_ARB not avaliable
* clutter_glx_texture_pixmap_using_extension / CLUTTER_GLX_TEXTURE_PIXMAP not avaliable
Signed-off-by: Andreas Mueller <schnitzeltony@gmx.de>
Commit 2c8c1c6df49 in gtk+ removed gdk_display_get_core_pointer().
The equivalent functionality can be achieved by using the
GdkDeviceManager to retrieve the client pointer device.
Maximized tiled windows end up with an inconsistent tile mode when
unmaximized by other means than dragging the window free (e.g.
using the unmaximize button or double clicking the title bar), so
reset the tile mode when unmaximizing.
This is not a problem for side-by-side tiling, as there are no
alternatives to dragging the window free.
When a tiled window is maximized (e.g. by clicking the title bar
button), unmaximizing the window restores the tiled state. While
this is reasonable for side-by-side tiling, it is confusing for
"maximize" tiled windows, as unmaximization has no visible effect.
Change unmaximize to only restore the tiled state of side-by-side
tiled windows.
The original patch triggered "maximize" when the window was dragged
to the top, so that the pointer was below or on the monitor edge and
above the work area's top.
If there's no chrome at the top of the monitor, so that monitor edge
and work area top fall together, the pointer cannot be moved above
the work area's top, so tiling was not triggered.
GTK is about to clean up its code and remove duplicate macros and
GdkDrawable usage. To prepare for that landing, we use the future-safe
versions of the same calls.
https://bugzilla.gnome.org/show_bug.cgi?id=636302
The old behavior of being able to shake loose a maximized window
overlaps with and is for the most part superceded by top edge tiling.
This commit changes the code to only enable shake loose behavior
when edge tiling is disabled.
https://bugzilla.gnome.org/show_bug.cgi?id=630548
In addition to the existing side-by-side tiling modes, this commit
adds a new "maximize" tiling mode. It allows the user to maximize
their windows (in other words, tile with the edge panels) by dragging
their window to the top edge of the monitor.
https://bugzilla.gnome.org/show_bug.cgi?id=630548
The meta_window_handle_mouse_grab_op_event function ensures
the tile_mode variable is in a consistent state after a drag
op is finished.
The way this is current done is:
if (!window->maximized_vertically &&
window->tile_mode != META_TILE_NONE)
window->tile_mode = META_TILE_NONE;
While valid, it doesn't "read" as well as using the
META_WINDOW_TILED_SIDE_BY_SIDE macro, since the macro is specifically
about side-by-side tiling.
This commit just changes things to use the macro and to not bother
checking the tile mode (since if we just reset it anyway, then it doesn't
matter if the value is right or wrong to begin with).
https://bugzilla.gnome.org/show_bug.cgi?id=630548
Currently, the new tiling feature, supports side-by-side, horizontal
tiling when dragging windows to one of the vertical edges of a monitor.
Other types of tiling (on other monitor edges) are potentially useful,
though.
This commit renames the preference from side_by_side_tiling to
edge_tiling.
https://bugzilla.gnome.org/show_bug.cgi?id=630548
A direction parameter is passed to meta_compositor_switch_workspace(),
to indicate the direction of the switch depending on the workspace
layout.
In contrast to the switcher popup, this parameter does not take the
text direction of the locale into account. Change this, so that the
workspace switching animations move in the correct direction.
https://bugzilla.gnome.org/show_bug.cgi?id=636083
overlay_key_combo needs the same treatment as other keycodes on a
change - we should always recompute it if we have a keysym not
a keycode, and not only if the keycode hasn't already been
computed.
Simplify the keymap loading logic by unifying the different
branches; in the reorganization this patch fixes a bug where when
we got a MappingKeyboard event we wouldn't update virtual modifiers
correctly.
Based on a patch by Thomas Thurman <tthurman@gnome.org>
https://bugzilla.gnome.org/show_bug.cgi?id=565540
* Select for XKB keyboard notification events explicitly; since GTK+
has selected for XKB events, delivery of old-school MappingNotify
events is disabled.
* Fix a bug where once a keycode was loaded for a key binding,
it would never be reassigned; we want to laod new keycodes for
all bindings that have a key symbol rather than a fixed
keycode.
[ With fixes from Owen W. Taylor <otaylor@fishsoup.net> ]
https://bugzilla.gnome.org/show_bug.cgi?id=565540
Protect against shape_region or bounding_region being NULL in check_needs_shadow.
This can happen for short lived windows and result into a crash.
https://bugzilla.gnome.org/show_bug.cgi?id=635421
Since we aren't depending on Clutter 1.5 or using the new
CoglPipeline name elsewhere, we need to stick to the old
COGL_MATERIAL_WRAP_MODE_* names, which are provided with
compatibility defines in Clutter 1.4.
Pointed out by Rico Tzschichholz
If we have repeats on for a full-sized image, then if the background
is displayed scaled (for example, in a desktop preview mode) then we
can get artifacts along the edge of the background where the repeat
of the opposite edge is blended in by bilinear scaling. So turn off
repeats when the screen and background image sizes match.
https://bugzilla.gnome.org/show_bug.cgi?id=634833
Add code to track and draw the root window background. The advantage of doing
it here as compared to in a plugin is that we can use the visiblity smarts
of MetaWindowGroup to optimize out drawing the background when obscured.
If handling other than tracking the _XROOTPMAP_ID property is desired in the
future, more functionality like setting the background from a file or doing
cross-fades can be added.
The new background actor is exposed to plugins via meta_plugin_get_background_actor()
similar to other exposed actors to allow cloning the background for use in
other displays. The actual class is not installed for public consumption at
the moment since it has no useful methods.
https://bugzilla.gnome.org/show_bug.cgi?id=634833
Create new cogl-utils.[ch] and move a helper function from
MetaShadowFactory there as meta_create_texture_material(); this
allows us to create single-layer materials from different parts of
Mutter and have them share the same template material.
Also expose a function for creating a 1x1 texture of a given
color meta_create_color_texture_4ub().
https://bugzilla.gnome.org/show_bug.cgi?id=634833
When in a partial stage paint, we can combine that with the visibility
information in MetaWindowGroup to further eliminate unneeded drawing.
Since there is no current Clutter API to access the current clip,
drop to using GL directly.
https://bugzilla.gnome.org/show_bug.cgi?id=634779
This is just a microptimization, as we pretty much always use
TFP (and do the check every time we set a pixmap),
we can let gcc generate better code here.
https://bugzilla.gnome.org/show_bug.cgi?id=633002
For various reasons (mostly the stack tracker correctly predicting the
stacking order before getting events, but also because of the processing
that the compositor does to get the actor stacking order) the compositor
can be told to sync the stack when it has nothing to do. Detect this
at the last moment before actually telling Clutter to restack to avoid
triggering unnecessary redraws.
https://bugzilla.gnome.org/show_bug.cgi?id=634771
Since we can't distinguish a ConfigureEvent that indicates a raise
from a ConfigureEvent that indicates a move, we get lots of
STACK_OP_RAISE_ABOVE events for windows that are already in the
right place in the stacking order. Avoid queueing a restack in that
case.
https://bugzilla.gnome.org/show_bug.cgi?id=634771
Fullscreen and maximized windows never have visible shadows - the only
case where we would ever see them is if they bleed onto an adjacent
monitor and that looks bad.
It's small performance win to avoid computing them, and this also avoids
painting the top shadow for all maximized windows in GNOME Shell - since
the top panel isn't a X window, it doesn't factor into the computation
of what parts of windows are visible and maximized windows are computed
as having a top shadow.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
These functions duplicate existing properties; they are added for
convenience and to avoid the GObject property code on some
performance critical painting paths.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
Instead of making optimizing obscured shadows an all-or-none operation,
pass the clip region to meta_shadow_paint() and only paint the 9-slices
that are at least partially visible.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
Instead of setting shadow parameters on individual windows, add the
idea of a "shadow class". Windows have default shadow classes based
on their frame and window type, which can be overriden by setting
the shadow-class property.
Each shadow class has separably configurable parameters for the
focused and unfocused state. New shadow classes can be defined with
arbitrary names.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
Frame types will form the bases of shadow classes, which are strings,
so export the to-string function so that we can do the conversion
uniformly.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
The basic MetaShadowFactory type is moved to a public header, while
the functions to fetch and paint shadows are kept private.
The public object will be used for configuration of shadows by
plugins.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
For attached modal dialogs, we want the shadow to fade out at the top
as if the window was glued to the parent at the top. Add a
shadow-top-fade property to MetaWindowActor and the corresponding
parameter to meta_shadow_factory_get_shadow().
The internal implementation of MetaShadow is adjusted to work
in terms of an "inner border" and "outer border" instead of doing
the calculations in terms of an aggregate border and the spread
of the shadow. The old way of doing things gets clumsy when the
top_fade distance is added in as well.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
Add a new frame type META_FRAME_TYPE_ATTACHED which is used for
attached modal dialogs.
The theme format version is bumped to 3.2, and attached windows
can have borders defined in a metacity-theme-3.xml as:
<window version=">= 3.2" type="attached" style_set="[name]"/>
If no style is defined for "attached", drawing will fall back
to the "border" type.
https://bugzilla.gnome.org/show_bug.cgi?id=592382
The current shadow code just uses a single fixed texture (the Gaussian
blur of a rectangle with a fixed blur radius) for drawing all window
shadows. This patch adds the ability
* Implement efficient blurring of arbitrary regions by approximating
a Gaussian blur with multiple box blurs.
* Detect when multiple windows can use the same shadow texture by
converting their shape into a size-invariant MetaWindowShape.
* Add properties shadow-radius, shadow-x-offset, shadow-y-offset,
shadow-opacity to allow the shadow for a window to be configured.
* Add meta_window_actor_paint() and draw the shadow directly
from there rather than using a child actor.
* Remove TidyTextureFrame, which is no longer used
https://bugzilla.gnome.org/show_bug.cgi?id=592382
The size_request vfunc is going to be dropped in GTK3; replace
the usage in MetaAccelLabel and MetaPreview with
get_preferred_width/get_preferred_height vfuncs.
https://bugzilla.gnome.org/show_bug.cgi?id=633352
In GTK+ 3, it's mandatory to have a GdkDevice in a synthesized event,
so fill in the pointer device for the events we synthesize and forward
to GTK+. Since gdk_event_set_device() only works for allocated events,
we need to switch to gdk_event_new() rather than using stack allocated
events.
https://bugzilla.gnome.org/show_bug.cgi?id=633401
Now that we create MetaWindow objects for override-redirect windows, we need
to check all key press events to see if they are on GTK+ widgets, not just
events that don't match a MetaWindow. This fixes a problem with alt-Tab stealing
grabs away from the window menu.
https://bugzilla.gnome.org/show_bug.cgi?id=633398
With client side windows, mixing GDK event delivery with explicit calls
to XUngrabPointer() can result in GDK losing button release events
it expects to get. This means that GDK thinks there is an implicit
grab in effect when there is none and send events to the wrong window.
Avoid this by bypassing GDK's event handling for most mouse events.
We do a simplified conversion of the X event into a GdkEvent and send
it to directly to libgtk for delivery.
We make an exception when a GDK grab is already in effect - this is
needed for the correct operation of menus.
http://bugzilla.gnome.org/show_bug.cgi?id=599181
While the Meego developers agreed to switching mutter to GTK+-3.0
unconditionally a while ago, Canonical used a GTK+-2.0 build for their
Unity project. As Canonical now announced a switch to compiz as their
window manager, there is no longer a reason to maintain GTK+-2.0
compatibility.
https://bugzilla.gnome.org/show_bug.cgi?id=633133
meta_display_process_key_event() always looks up events based on the
"default" keysym for the keycode, so we should do the same here. This
fixes, eg, the lookup of Shift-Alt-Tab (which would otherwise be
unrecognized because the keysym would be XK_ISO_Left_Tab rather than
XK_Tab).
https://bugzilla.gnome.org/show_bug.cgi?id=632155
In ui/fixedtip.c, use g_signal_connect instead of g_signal_connect_swapped
since we're not using the data pointer (and for clarity).
At the same time, ensure that both the GTK2 and the GTK3 code paths
have the correct signature for the handler.
https://bugzilla.gnome.org/show_bug.cgi?id=633051
The code for defining a color as a constant had broken logic: it
would try to parse the color first as an double, then as an integer;
the second attempt would produce an error about overwriting the
already-set-GError. Then it would clear the error and store the constant
as a color.
Use the fact that colors have to start with a letter or #, divide the
space of constants into:
- Integers
- Doubles
- Colors
so we get good error messages. Based on a patch by
William Jon McCann <jmccann@redhat.com>.
Note that this breaks the ability to specify an integer constant as
identical to another integer constant (the same didn't work for doubles.)
I think this was an accidental side effect of the code and not something
that was intentional or people were relying on
https://bugzilla.gnome.org/show_bug.cgi?id=632116
Remove --allow-unprefixed option to the scanner, and fix resulting
problems:
* theme.h and boxes.h are split into a main -header and a private
header that includes stuff that is not generally useful and
hard to introspect. Merge theme-parser.h into theme.h.
* meta_display_get_atom() and meta_window_get_window_type_atom()
are marked as (skip)
* Fix annotation: (element-type Strut) => (element-type Meta.Strut)
https://bugzilla.gnome.org/show_bug.cgi?id=632494
Move all objects and functions namespaced with Mutter into the Meta namespace
to get a single consistent namespace. Changes that aren't simply changing mutter
to meta:
MutterWindow => MetaWindowActor
mutter_get_windows => meta_get_window_actors
mutter_plugin_get_windows => meta_plugin_get_window_actors
https://bugzilla.gnome.org/show_bug.cgi?id=628520
In many places, MetaRegion was being used entirely internally, rather
than for gtk2/gtk3 compatibility. In these cases, it's simpler to just
depend on cairo-1.10 (for both gtk2 and gtk3) and use cairo_region_t.
The few places where we did need GDK compatibility (GdkEvent.region and
gdk_window_shape_combine_mask) are replaced with a combination of
converting GdkRegion to cairo_region_t and conditional code.
https://bugzilla.gnome.org/show_bug.cgi?id=632474
Simplify the code by noting that when we have square end-caps, the
results of generic line path give the right pixel-aligned rectangle
for horizontal/vertical lines.
Add comments and remove some extra braces.
https://bugzilla.gnome.org/show_bug.cgi?id=630426
Currently mutter-window has its own type field, even though the same
information is already present in meta_window.
And while at it get rid of MetaCompWindowType, it is equally redundant.
https://bugzilla.gnome.org/show_bug.cgi?id=630363
Commit aa65f94c67 that started passing
cairo_t around broke offsets. Since passing cairo_t makes them
unnecessary, this patches removes them rather than fixing them.
This patch changes API.
https://bugzilla.gnome.org/show_bug.cgi?id=630203
With the newest changes to GTK3, some things were changed. This patch
now uses the features introduced in gtk3-compat.h in previous patches.
This patch also introduces a macro named USE_GTK3 that is used to
differentiate between GTK3 and GTK2. Its main use is differenting
between expose and draw handlers for GtkWidget subclasses.
The draw vs expose handlers question is usually handled by using ifdefs
at the beginning and end to set up/tear down a cairo_t and then use it.
However, when the function is too different and too many ifdefs would be
necessary, two versions of the function are written. This is currently
the case for:
- MetaAccelLabel
- MetaFrames
https://bugzilla.gnome.org/show_bug.cgi?id=630203
Similar to the region compatibility shim, we will soon need a
compatibility shim around GdkPixmap/cairo_surface_t. For now, the patch
just introduces the compatibility layer.
This patch also does not include the function
meta_gdk_pixbuf_get_from_pixmap() as that function will need special
treatment in GTK3 anyway.
https://bugzilla.gnome.org/show_bug.cgi?id=630203
Rename meta_frames_paint_to_drawable() to meta_frames_paint() and make
it take a cairo_t as an argument instead of creating the cairo_t itself.
This patch refactors code for GTK3 changes where code needs to handle
cairo_t and not GdkDrawable arguments.
https://bugzilla.gnome.org/show_bug.cgi?id=630203
This commit is in preparation for the work happening in GTK3, which will
use Cairo for drawing exclusively. So it is necessary to move all
drawing code to Cairo. In this commit the "gtk2" code is used for both
gtk2 and gtk3; compatibility with newer versions of gtk3 where different
code is needed will be added subsequently.
For compatibility with older GTK versions, the file gdk2-drawing-utils.h
provides a compatibility layer.
The commit changes the API of libmutter-private.
https://bugzilla.gnome.org/show_bug.cgi?id=630203
For functions (but not callback types), '(closure)' is used on the
callback parameter, and takes the name of the parameter which is
the closure/user data.
A maximized window can't be resized from the screen edges (preserves
Fitts law goodness for the application), but it's still possible
to start a resize drag with alt-middle-button. Currently we just
don't let the user resize the window, while showing drag feedback;
it's more useful to let the user "break" out from the resize.
This provides a fast way to get a window partially aligned with
the screen edges - maximize, then alt-drag it out from one edge.
Behavior choices in this patch:
- You can drag out a window out of maximization in both directions -
smaller and larger. This can be potentilaly useful in multihead.
- Dragging a window in only one direction unmaximizes the window
fully, rather than leaving it in a horizontally/vertically
maximized state. This is done because the horizontally/vertically
maximzed states don't have clear visual representation and can
be confusing to the user.
- If you drag back to the maximized state after breaking out,
maximization is restored, but you can't maximize a window by
dragging to the full size if it didn't start out that way.
A new internal function meta_window_unmaximize_with_gravity() is
added for implementing this; it's a hybrid of
meta_window_unmaximize() and meta_window_resize_with_gravity().
Port of the metacity patch from Owen Taylor in bug 622517.
https://bugzilla.gnome.org/show_bug.cgi?id=629931
The widget needs to be visible and mapped for GTK3 to deliver expose
events to the widget. This is achieved by making the map function a
no-op and calling gtk_widget_show() instead of just calling
gtk_widget_realize().
Apart from making GTK think the widget is drawable, the effect is the
same.
https://bugzilla.gnome.org/show_bug.cgi?id=630203
This way, we can remove the special casing in
meta_frames_paint_to_drawable().
Since the setup in meta_frames_paint_to_drawable() is relatively cheap,
doing it once per rectangle in the expose area should be fine.
https://bugzilla.gnome.org/show_bug.cgi?id=630203
gtk_rc_get_style_by_paths() returns NULL if no matching style was
found and the default style should be used. Actually use the default
style in this case.
https://bugzilla.gnome.org/show_bug.cgi?id=630003
The hacks we were playing by calling gdk_error_trap_push() and then
resetting the error handler are incompatible with the rewrite of
GDK error traps.
Since the new error code has some features that simplify what we
are doing (like automatically figuring out whether a XSync() is needed)
and because our custom error handler didn't have a lot of a point,
use a separate code path for GTK+ 3.0 builds that just uses the
GDK error traps straight-up without a custom error handler.
https://bugzilla.gnome.org/show_bug.cgi?id=630195
Wine sets _NET_WM_USER_TIME_WINDOW to point to an unmapped toplevel;
this was causing much confusion because both the real window and
the unmapped window were in the window stack and mapped back to the
same MetaWindow.
Debugged by Alban Browaeys
https://bugzilla.gnome.org/show_bug.cgi?id=593887
When dragging a window over a screen edge and dropping it there,
maximize it vertically and scale it horizontally to cover the
corresponding half of the current monitor.
Whenever a "hot area" which triggers this behavior is entered, an
indication of window's target size is displayed after a short delay
to avoid distraction when moving a window between monitors.
https://bugzilla.gnome.org/show_bug.cgi?id=606260
Add a preference /apps/mutter/general/attach_modal_dialogs. When true, instead
of having independent titlebars, modal dialogs appear attached to the titlebar
of the parent window and are moved together with the parent window.
https://bugzilla.gnome.org/show_bug.cgi?id=612726
Cleanly build with --warn-fatal. Implementation:
* Liberally apply (skip) where the API is clearly C only, e.g. uses
XLib. The theming code and MutterPlugin are skipped too.
* Add missing (transfer) and (element-type) annotations
For a few functions that had a comment, I turned it into gtk-doc, but
I didn't (with a few exceptions) try to write new documentation in
this pass.
Libmutter-private's preview-widget.h depends on region.h, so that one
needs to be installed as well in order to keep dependees build.
Signed-off-by: Tomas Frydrych <tf@linux.intel.com>
XDamageSubstract can create a BadDamage
(when the window goes away before XDamageSubstract is called)
and thus resulting into a crash.
Fix it by protecting the call with an error trap.
https://bugzilla.gnome.org/show_bug.cgi?id=623235
The gdk_window_get_background_pattern() function copied from GDK and
introduced in commit 0839c10 has a small syntax error and uses a private
API (_gdk_drawable_ref_cairo_surface()). This patch imports the missing
API and fixes the syntax error.
https://bugzilla.gnome.org/show_bug.cgi?id=626583
If the user just presses a modifier (e.g., shift) during Alt+Tab grab, we need
to keep the grab in place to allow the custom Alt+Tab handler to deal with what
might simply be a change of tabbing direction.
https://bugzilla.gnome.org/show_bug.cgi?id=613126
We don't get correct notifications for the ::cogl-texture property of
ClutterTexture in the case when we are unsetting the pixmap before calling
XFreePixmap. (This is because ClutterX11TexturePixmap is a hack on top
of ClutterTexture and we're a hack on top of that.) So we need to manually
clear everything out.
For consistency we also make sure that we drop all references to dead
textures:
- When the shape changes
- If the window pixmap texture changes without first being cleared
(this is not expected to happen)
https://bugzilla.gnome.org/show_bug.cgi?id=627210
This patch adds a check in event_callback () to check whether the
window is override-redirect or not, and avoids unnecessarily calling
meta_window_set_user_time () if it is.
https://bugzilla.gnome.org/show_bug.cgi?id=606158
Rather than trying to find out from Clutter whether mipmap generation
can be used together with texture_from_pixmap, just always assume
it can't and use the MutterTextureTower emulation code.
This fixes a problem with our previous hack for doing the query
no longer working. In the rare cases where mipmap generation
is supported, it is unlikely to produce significantly more efficient
or better looking results than the emulation. (In terms of efficiency,
we have better knowledge of when we need to update the lower mipmaps
and when we don't than CoglTexturePixmapX11.)
Some care is taken so mutter_shaped_texture_set_create_mipmaps() works
when changed on the fly and properly discards the old mipmap levels.
This isn't necesary currently, since it can only be controlled via
envvar, but is easier than future-proofing through documentation.
https://bugzilla.gnome.org/show_bug.cgi?id=627087
At least with the Mesa/DRI implementation of GLX, calling XFreePixmap()
on a pixmap before glxDestroyPixmap() on the corresponding GLX pixmap
causes an X error. To avoid triggering this with the new
ClutterTexturePixmapX11 code, we need to move our XFreePixmap after
unsetting the pixmap from the actor.
https://bugzilla.gnome.org/show_bug.cgi?id=627210
gdk_window_get_back_pixmap() and gdk_window_get_background() have
been removed/deprecated. Use gdk_window_get_background_pattern()
as replacement.
https://bugzilla.gnome.org/show_bug.cgi?id=626583
When we do pseudo-management on an override-redirect window, we have to be
careful to augment the existing event mask, not replace it, or
delivery of pointer events will be disrupted.
When we unmanage a window, we shouldn't try to unselect events at all,
since that will interfere with event selection done by GDK.
http://bugzilla.gnome.org/show_bug.cgi?id=597763
Starting with clutter 1.4 clutter / cogl only knows whether TFP is in use after
setting the pixmap, so doing the check before setting the pixmap will just
lead to a wrong message.
https://bugzilla.gnome.org/show_bug.cgi?id=624757
g-ir-scanner is currently buggy and confuses the Gdk.Rectangle alias
with MetaRectangle. Since this is moderately hard to fix in
gobject-introspection and the fix would conflict with in-progress
changes, work around by doing a 'sed job' on the generated Meta.gir.
https://bugzilla.gnome.org/show_bug.cgi?id=623639
Export a boxed type for MetaRectangle; this is mostly of interest
because GdkRectangle has been turned into a typedef for
cairo_rectangle_int_t which causes massive problems for using it from
gobject-introspection based language bindings.
https://bugzilla.gnome.org/show_bug.cgi?id=623335
In order to replace calls to deprecated GDK code, the current
development version of GTK+ is required. Add some basic compatibility
code to allow building mutter with GTK+ 2.18.
https://bugzilla.gnome.org/show_bug.cgi?id=587991
The current effect API passes an unnecessary list of windows to
switch_workspace() and forces a window to be passed in when killing
the switch_workspace() effect.
We can simplify the interface to correspond more closely to how
it is actually used and fix these problems:
Remove the actors parameter to plugin->switch_workspace
Remove the events parameter to plugin->kill_effect and rename it to kill_window_effects
Add plugin->kill_switch_workspace
Remove mutter_plugin_manager_kill_effect
Add mutter_plugin_manager_kill_window_effects
Add mutter_plugin_manager_kill_switch_workspace
Remove mutter_plugin_effect_completed
Add mutter_plugin_[minimize/map/destroy/maximize/unmaximize]_completed
https://bugzilla.gnome.org/show_bug.cgi?id=621082
A mismerge of the Metacity commit "4943d79 Prevent window self-maximisation"
caused the window's user set size and position to be saved *before*
actually resizing the window to the unmaximized position rather than after.
This meant that after unmaximization the window was in an inconsistent
state and anything that caused a resize to be queued (like a change in
window properties by the application) would cause it to pop back to
the maximized size and position.
https://bugzilla.gnome.org/show_bug.cgi?id=621413
It's useful for plugins to be able to easily detect whether
or not a window is from a remote host. Also, make use of this
in the window delete codepath, instead of looking up the hostname
each time.
https://bugzilla.gnome.org/show_bug.cgi?id=620585
While debugging a focus problem, I noticed that Mutter had exactly
the debug statements I wanted under the META_DEBUG_FOCUS topic.
However, calling meta_set_verbose (true) results in enormous amounts
of other messages, and it's inconvenient to filter after having
started mutter.
This patch allows one to call Meta.add_debug_topic(Meta.DebugTopic.FOCUS)
from a console, and get just what one wants.
https://bugzilla.gnome.org/show_bug.cgi?id=620359
In commit d34ae764769 I switched mutter-window to ask for Raw rectangles
from the X server. This avoided 2 non synchronous and 2 synchronous X
requests per window with damage, per frame; 2 (non-sync) to
create/destroy a temporary region to copy the damage region into, 1 to
request the server to copy the damage region into a our given region and
another to fetch that region back into the client. The problem with raw
events though is that it's possible to DOS the compositor with them.
Instead of receiving an event for every bit of damage this patch instead
asks the server to only report BoundingBox changes to the damage region.
https://bugzilla.gnome.org/show_bug.cgi?id=611838
This function returns xid of the WM leader window (as defined by the
_NET_SUPPORTING_WM_CHECK mechanism of EWMH). For use by plugins that wish to
attach custom properties to this window.
https://bugzilla.gnome.org/show_bug.cgi?id=613125
Changing the number of workspaces via an external pager relies on the gconf
key; if a plugin adds or removes workspaces on the fly, we can get into a
situation when the stale number stored by the preferences matches the new
number requested by the pager, in which case the pager request becomes a nop.
This commit ensures that when the meta_screen_append_new_workspace() or
meta_screen_remove_workspace() functions are called, the stored value is
updated accordingly.
https://bugzilla.gnome.org/show_bug.cgi?id=613127
A per-window _MUTTER_HINTS property allowing plugins to use custom hints. The
property holds a colon separated list of key=value pairs; plugin-specific keys
must be suitably namespaced, while 'mutter-' prefix is reserved for internal
Mutter use only.
This commit adds MetaWindow::mutter-hints property, and
meta_window_get_mutter_hints() accessor, as well as the internal machinery for
reading and updating of the hints.
https://bugzilla.gnome.org/show_bug.cgi?id=613123
To replace all calls to deprecated code, GTK+ 2.20 is required - add
some basic compatibility code, so that it is still possible to build
mutter with GTK+ 2.18 when not using -DGSEAL_ENABLE.
https://bugzilla.gnome.org/show_bug.cgi?id=595496
COGL bug http://bugzilla.openedhand.com/show_bug.cgi?id=2110 results
in pending drawing at the time of cogl_offscreen_new_to_texture() going
to the newly created framebuffer rather than the stage.
This would result in most windows being missing for the first frame
when a new window is mapped.
Work around this by calling cogl_flush() before
cogl_offscreen_new_to_texture().
https://bugzilla.gnome.org/show_bug.cgi?id=618138
The beginning maximization/unmaximization don't go through
start_effect_simple(), so we need to freeze the window
separately.
Change MutterWindow.freeze_count to a signed integer for
consistency with other counts, and so the logic for
checking for errors works properly.
https://bugzilla.gnome.org/show_bug.cgi?id=616546
This changes the way we handle Damage events so instead of getting an
event when the damage region of a pixmap becomes non-empty we now get
sent all damage rectangles and stream those all though to
ClutterX11TexturePixmap using clutter_x11_texture_pixmap_update_area()
For Clutter 1.2, ClutterGLXTexturePixmap was updated so that calls to
clutter_x11_texture_pixmap_update_area are now cheap (glXBindTexImageEXT
calls are now deferred until just before painting) and since
ClutterGLXTexturePixmap is now capable of queueing clipped redraws that
can result in only updating a sub-region of the stage during a repaint
cycle (and using glXCopySubBufferMESA to present the sub-region redraw
to the front buffer) this should improve performance and reduced power
consumption for a range of use cases. (For example viewing a website
that has animated adverts doesn't force the whole screen to be redrawn
for each frame of the advert)
Besides being able to take advantage of glXCopySubBuffer to only update
a small region of the stage the fact that this patch makes Mutter now
request RawRectangles from the X server means we no longer do a
synchronous X request for a complete Damage Region for every window
damaged each frame. This should also improve performance.
CLUTTER_PAINT=redraws can be used to visualize what parts of the stage
are redrawn and with this patch applied I can open a terminal and as I
type I see that only the damaged areas of the terminal are being
redrawn.
In the case where a mutter window is created for an X Window that is
already mapped then we weren't calling mutter_window_mark_for_repair and
so we weren't calling XCompositeNameWindowPixmap e.g. for menu windows.
This doesn't get noticed because as soon as some damage gets delivered
for such windows the pixmap will be named anyway, but if we were to
change how damage is handled this would result in broken menus.
We now call mutter_window_mark_for_repair in mutter_window_new when the
given Window is already mapped.
It's nice to indicate when a title is truncated with an ellipsis.
Because themes may draw a title multiple times to draw a shadow, or
may include the window icon within the title area, we can't determine
the proper ellipsization width automatically, so add an optional
attribute to the <title/> element "ellipsize_width" which, if set,
is the width to ellipsize at.
This is only enabled if a theme version of 3.1 is required.
When it's not set, we keep the old behavior of just letting the
title be clipped with a hard edge.
https://bugzilla.gnome.org/show_bug.cgi?id=591842
Sometimes you want to position something (usually the title) to be centered
with respect to the entire frame instead of centered with respect to the
individual piece currently being drawn.
This patch adds frame_x_center and frame_y_center variables that represent
the X/Y centers of the frame in the coordinate system of the piece being
drawn.
The theme version is bumped from 3.0 to 3.1 (3.0 is just the new version
system, 3.1 will have all the features we add for Mutter-2.28.)
position expressions
https://bugzilla.gnome.org/show_bug.cgi?id=591842
Although multi-screen support has not been tested and probably
doesn't fully work, the basic setup for multi-screen is that
we have the same list of plugins for all screens, but a different
instance of the plugins for each screen.
To allow plugins to do setup that is screen independent and needs
to occur early in the setup process, we identify a "default plugin
manager" and load (but not start) that plugin manager's plugins
immediately after we know our list of plugins.
That plugin manager is then reused for the first screen we open
and the plugins are started at that time. Separate plugin managers
are loaded and started for any other screens we open.
(A plugin could keep track of whether the screen-independent
setup has been done in a static variable, or it could do everything
in a way that is safe to do repeatedly.)
https://bugzilla.gnome.org/show_bug.cgi?id=615586
Allow a plugin to redirect preferences from one GConf location
to another GConf location. This is useful for keys that need to be
set differently in a plugin-managed environment (like GNOME Shell)
as compared to in standalone Metacity.
Overriding is implemented by overwriting the keys in the arrays
of preferences; a list of the current overrides is stored to allow
proper memory management when an override is itself overriden.
(we need to know whether to free the old keys or not)
This patch cleans up the comments in prefs.c a bit as well; some ideas
about less-exciting potential improvements were removed to make the
comments explaining the structure easier to figure out.
https://bugzilla.gnome.org/show_bug.cgi?id=615586
Rather than using the plugin objects constructed() method for doing
setup that requires the MetaScreen, add an explicit start() method
that is called after the screen is set.
The reason for this is that this allows plugin objects to be created
early before the bulk of Metacity setup, which then allows plugins
to affect how the setup happens. (For example, to change the way
that preferences are loaded.)
This is an incompatible change, since 'screen' is now not set in the
constructed method, so the plugin API version is bumped.
https://bugzilla.gnome.org/show_bug.cgi?id=615586
The current mechanism of metacity-theme-1.xml and metacity-theme-2.xml
is not flexible for allowing small-scale additions. With this patch
we bump the major version version once more to metacity-theme-3.xml
and add a single feature:
Any element in the DTD can have an attribute:
version="[<|<=|=>|>] MAJOR.MINOR"
And it will be ignored unless the predicate is met. (< and > should
be to be entity escaped as < and >)
This allows having alternate sections of the theme file for older and
newer version.
* Required GLib version is bumped to 2.14 so we can parse versions
with a regular expression.
* We switch internal version numbers to be "1000 * major + minor"
* We keep a stack of the maximum required version for the current portion
the XML tree so that the "cannot use versions you don't require" stricture
of the old code can be made local to a subpart of the tree.
* A version on the top metacity_theme element causes the entire file to
be ignored; this allows having one metacity-theme-3.xml for version 3.2
and newer (say) and a metacity-1.xml for everything old.
Actual new features will be added starting with 3.1 - 3.0 is just the
version="" feature.
http://bugzilla.gnome.org/show_bug.cgi?id=592503
Simplify code to find the right theme to load and loading it by moving
all the loading code into a load_theme() helper function, and making
meta_load_theme() use that as it searches through the directories.
Look for old-version themes even when loading relative to the working
in debug mode.
Don't unnecessarily duplicate and then free info->theme_file and
info->theme_dir.
http://bugzilla.gnome.org/show_bug.cgi?id=592503
The change to using gconf_client_all_entries() in commit 2d57b1b4
meant that workspaces without a GConf key for their name were not
getting a name at all. Fix this by doing a post-processing loop
to set workspace names that were not otherwise set.
Alternate to patch from Tomas Frydrych
https://bugzilla.gnome.org/show_bug.cgi?id=613136
Since all windows are now MetaWindows as well as compositor
windows, there's no reason to keep a compositor-specific hash table
mapping from XID to MutterWindow.
This reduces complexity and removes a call to XQueryTree that could
potentially produce a BadWindow error if not error-trapped.
https://bugzilla.gnome.org/show_bug.cgi?id=613398
meta_compositor_process_event uses meta_error_trap_push/pop for
every event processed by meta_compositor_process_event which isn't needed
and can cause performance problems.
https://bugzilla.gnome.org/show_bug.cgi?id=613398
- Specify a minimum version of Clutter-1.2.0
- Remove conditionalizatin and always use Clutter-1.1 framebuffer
API rather than raw GL fbos
- Replace deprecated cogl_material/texture_unref() with
cogl_handle_unref()
https://bugzilla.gnome.org/show_bug.cgi?id=610862
The change to reduce GConf trips by using
gconf_client_all_entries() broke the fallback to builtin values
because update_binding() was no longer called for bindings not
found in GConf. Fix this by keeping track of the bindings we
find from GConf in a hash table, then looping through and setting
all the bindings at the end.
This also improves efficiency by avoiding a linear scan for each
binding in GConf.
https://bugzilla.gnome.org/show_bug.cgi?id=609710
When we are reading bindings initially, update_list_binding() needs
to be passed the correct "string list type" since we are calling
it with a list of strings instead of a list of GConfValue.
https://bugzilla.gnome.org/show_bug.cgi?id=609101
The older code relied on Clutter providing default texture coords for any
layers for which texture coords were not specified, which does not work as
of Clutter 1.1.6 (due to commit 8b950bdc87).
https://bugzilla.gnome.org/show_bug.cgi?id=609657
Treat the empty string the same as "disabled" for GConf keybinding
keys. gnome-keybinding-properties was changed to write disabled
keys as the empty string a year or so ago.
https://bugzilla.gnome.org/show_bug.cgi?id=559816
Whether Metacity honors a raise request from an application should
not be affected by the raise_on_click setting; remove a check that
seems to have been added in error.
https://bugzilla.gnome.org/show_bug.cgi?id=445447
When we are moving a window with a modal dialog to a different
workspace, meta_workspace_focus_default_window() can be called
with 'not_this_one' being the focused modal dialog.
Since the ancestor of that window is also being moved, we must
not focus it as an alternative to the current window; this will
cause windows to be moved back and Metacity to get into an
inconsistent confused state.
https://bugzilla.redhat.com/show_bug.cgi?id=237158https://bugzilla.gnome.org/show_bug.cgi?id=598995
We currently allow XRaiseWindow when the same application (defined
by the window group) is focused, but the kind of old applications
that XRaiseWindow are frequently not setting the window group.
Expand the check to allow the same X client (defined by the looking
at client ID) to raise windows above the focus window.
https://bugzilla.gnome.org/show_bug.cgi?id=567528
When started without session related command line parameters (e.g. from
gnome-session), metacity picks up client_id from the DESKTOP_AUTOSTART_ID
environment variable. Unfortunately, there is no way to distinguish if this was
passed from a config file, representing old saved session, or generated by
gnome-session, therefore load_state is attempted in each case. If the client_id
is generated, there will be no session file, and metacity will report a
warning.
Just remove the warning so that users won't always find a warning at the
start of their .xsession-errors.
https://bugzilla.gnome.org/show_bug.cgi?id=577576
The atk-bridge GTK+ module opens its own display; if we get an
XIOError on that display, we shouldn't abort with a meta_bug()
but just exit normally. Also fix a segfault if we got an XError
for that display.
https://bugzilla.gnome.org/show_bug.cgi?id=604319
Add a configure switch:
--with-libcanberra=[yes/no/auto]
(defaulting to auto); if libcanberra is not found or explicitly
disabled, then the default system bell will be used for the bell
sound and no switch workspace sound is played.
https://bugzilla.gnome.org/show_bug.cgi?id=609585
These sounds are good candidates for caching in the sound server, to
save a bit of CPU and make reaction faster. Hence, tell libcanberra to
cache them.
https://bugzilla.gnome.org/show_bug.cgi?id=609585
libcanberra generates specific tooltip popup sounds and for that
recognizes the tooltip windows by the GtkWindowTypeHint set for them.
This trivial patch simply sets the hint for the self-drawn tooltips
metacity uses.
https://bugzilla.gnome.org/show_bug.cgi?id=609585
Right now metacity issues only 1 bell event per second. This is
feels buggy when triggering multiple alarm sounds in a terminal.
This patch simple increases the limit to 1/100ms. 100ms is probably a
good choice since the HIG recommends that all user reaction should
happen within 100ms. With this applied pressing 'Left' in gnome-terminal
feels much more responsive.
https://bugzilla.redhat.com/show_bug.cgi?id=498608https://bugzilla.gnome.org/show_bug.cgi?id=609585
* src/core/bell.c: Don't force CA_PROP_CANBERRA_ENABLE to 1.
That was a misunderstanding on my part, and makes it impossible
to get rid of the bell.
svn path=/trunk/; revision=4165
https://bugzilla.gnome.org/show_bug.cgi?id=609585
* src/core/bell.c (meta_bell_set_audible): Now that we are
using libcanberra, don't tell the X server to play the system
bell internally.
svn path=/trunk/; revision=4141
https://bugzilla.gnome.org/show_bug.cgi?id=609585
metacity tries to do the right thing, by preloading all the relevant
directories before getting the keys one-by-one, but GConfClient isn't actually
smart enough to avoid server roundtrips in this case. That should certainly be
fixed in GConf.
In the meantime, here is a patch that reworks the metacity prefs initialization
to avoid roundtrips for individual keys anyway, by using
gconf_client_all_keys().
https://bugzilla.gnome.org/show_bug.cgi?id=574121https://bugzilla.gnome.org/show_bug.cgi?id=607746
The ICE connection is opened by libSM; we can't just close it when
we get an IOError on the ICE connection; instead call SmcCloseConnection()
and mark the connection as closed. This will prevent a segfault if we
exit out of the metacity main loop and get to meta_finalize().
https://bugzilla.gnome.org/show_bug.cgi?id=604867
It makes more sense because the grave key is close
to the tab and escape keys which the other cycle
keybindings use.
This always works better for gnome-shell, which
switchings between applications by default with alt-tab.
The user can now alt-tab to the application they want,
and then move their finger to the grave key to select
the window they want.
Windows demanding attention should never appear in the alt-tab list
unless they're of a type which might have appeared there anyway. This
solves a problem under AWN where docks which were marked as demanding
attention appeared in all alt-tab lists; they were irrelevant and it
was impossible to remove them from the lists.
svn path=/trunk/; revision=4123
Lines where x1==x2 or y1==y2 may have the second element null. Lines
where both are null, and the width is zero, are points. This speeds
things up surprisingly much.
svn path=/trunk/; revision=4119
(This is inspired by Metacity commit 45cbaa2 by Thomas Thurman, but
much simpler - the use of g_date_strftime("%Y") ended up being just
%d for all 90+ current translations)
meta_workspace_set_builtin_struts() is slightly expensive; it involves
discarding all our cached computed information about the layout of the
workspace. So catch calls to set_builtin_struts() that don't change
anything.
https://bugzilla.gnome.org/show_bug.cgi?id=609546
Since meta_workspace_invalidate_work_area() frees the edges
workspace->screen_edges and workspace->monitor_edges, we must clean up
our cached edge resistance data when the invalidate_work_area() is
called on the active workspace, or when the workspace changes.
Make the computation of the edge resistance data lazy so that it
will be recomputed the next time we try to access it.
meta_display_compute_resistance_and_snapping_edges() is made
private to edge-resistance.c
Invaliding the data when active workspace changes also will improve
correctness for edge resistance when the current workspace changes
during a grab operation. (Even with this fix we still don't try to
handle window positions changing during a grab operation; that can't
cause a crash since, unlike screen and monitor edges, the window edges
are freshly allocated, it will just cause slight oddness in that
corner case.)
Root cause tracked down due to much effort by Jon Nettleton.
https://bugzilla.gnome.org/show_bug.cgi?id=608800
When putting 32-bit properties into longs on 64-bit architectures,
XGetWindowProperty assumes the values are supposed to be signed, and
so it sign-extends values greater than 0x7fffffff. So if they *aren't*
supposed to be signed, we need to chop off the high bits ourselves.
(Most CARDINAL-valued properties only end up using small values
anyway, so it doesn't matter, but _NET_WM_WINDOW_OPACITY uses the full
range, and so was previously failing on 64-bit machines.)
https://bugzilla.gnome.org/show_bug.cgi?id=605678
The CGL_* defines in COGL were always meant to be private and should
have never been exposed in the first place. The API in COGL has been
updated to never require them starting from 1.1, but using the original
GL symbols has always been the intent of the API.
This commit removes the CGL_TEXTURE_RECTANGLE_ARB usage in favour of the
ARB-sanctioned GL_TEXTURE_RECTANGLE_ARB enumeration value.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=607398
PFNGLACTIVETEXTUREPROC (a GL-1.2 addition) was inadvertently missing
from some recent versions of Mesa (like that in Fedora 11.) Use
the identical PFNGLACTIVETEXTUREARBPROC instead.
the mutlitexture and texture_rectangle extensions have recently
been incorporated into the GL core; fixes needed to work with
libGL that proceeds that:
GL_TEXTURE_RECTANGLE_ARB - use _ARB name
glActiveTextureARB() - use get_proc_address
https://bugzilla.gnome.org/show_bug.cgi?id=602870
Add MutterTextureTower, an abstraction for getting a image with
the right level of detail for rendering at a particular scale,
by manually scaling down by powers of two.
This results in much better looking scaled window images when
mipmaps can't be used with texture_from_pixmap (which is the
typical case for current GL drivers.)
When framebuffer objects are available, they are used to do
the scaledown using the GPU without having to pull the data
back from video memory. A software codepath is also available
for the case when FBO's are not present, though performance
will suffer
https://bugzilla.gnome.org/show_bug.cgi?id=601032
The commit that removed metacity-dialog added a global SIGCHLD handler
that caused problems by (a) calling waitpid(-1) and thus breaking
g_child_watch for everyone else, and (b) doing too much from a signal
handler and sometimes causing deadlocks (bug 596200).
This removes the global handler and has each zenity user create its
own child watch to watch for exit. (It also fixes the window class of
the zenity dialogs, so that meta_window_present_delete_dialog() will
work again.)
Having a MetaDisplay::window-demands-attention signal allows to deal with
windows demanding attention in a cetralized fashion.
The signal is emitted when a window is created with initial demands-attention
state and/or when the state changes later on.
Based on original patch by Jon Nettleton.
https://bugzilla.gnome.org/show_bug.cgi?id=597052
With the change from bug 582639, we no longer call the reload
functions for properties that are not initially set, so the
initialization of fields in window.c has to match what
window-props.c would set for a missing property.
There was only one discrepancy, window->input, which needs
to be set to TRUE by default (or a window missing a WM_HINTS
property won't get focus); we also add explicit initializers
for a couple of fields that were getting 0-initialized
to the correct default value of FALSE for consistency with
the explicit intialization of the rest of the fields.
Bug reported by Dominique Leuenberger
https://bugzilla.gnome.org/show_bug.cgi?id=601228
For some consumers it's significantly more convenient to be able
to directly connect to a signal on the Window to know when
Mutter is done with it, rather than having to connect to each
Workspace object (and handle workspace additions, etc.).
Similarly, add window-created which acts globally.
https://bugzilla.gnome.org/show_bug.cgi?id=598289
When we focus a window on a different desktop, and the calc_showing
idle that hides/shows the windows gets run before we get focus events
back from X, we think that we are hiding the window with the focus
so we focus a "random" window to avoid leaving the user with no focus.
Work around this temporarily by checking display->expected_focus_window;
this isn't a perfect fix because there are cases where
display->expected_focus_window corresponds to a window we tried to
focus in the past but failed, but it makes things work fairly well.
https://bugzilla.gnome.org/show_bug.cgi?id=597352
When we create the timeline dummy timeline to ensure that our later
functions that should be run during repaint get called called, pass in
G_MAXUINT to make the duration very long, not 0. (It will get reset
whenever there is no repaint later to run, so the fact that G_MAXUINT
is only ~40 days isn't a problem.)
This fixes a warning from Clutter, but also a real problem.
There was a problem where if, for example, a restack was triggered
out of a clutter event handler, then after Clutter processed the
events, it would proceed immmediately on to repaint the stage without
ever returning control to the GLib main loop. So even though we
had an idle handler installed with a higher priority than the
Clutter stage repainting the clutter stage repainting would happen
first and we'd get a wrong frame.
Fix this by introducing the idea of "later functions", which abstract
the idea of "doing something later" away from g_idle_add() and use
a combination of GLib idle functions and Clutter "repaint functions"
to get our callbacks triggered at the right time, even when they
are installed from a clutter event handler.
https://bugzilla.gnome.org/show_bug.cgi?id=596334
This also resolve a FIXME where MUTTER_PRIORITY_BEFORE_REDRAW
could starve stage repainting.
The return value of XGrabKeyboard() wasn't actually being assigned
to the 'result' variable so we didn't notice when grabbing the
keyboard failed.
https://bugzilla.gnome.org/show_bug.cgi?id=596343
We need a way to indicate to gnome-control-center that we want the
keybindings capplet to show the Window Manager keybindings for Metacity;
do this through a _GNOME_WM_KEYBINDING property we put on the
_NET_SUPPORTING_WM_CHECK window and set to Mutter,Metacity.
See http://bugzilla.gnome.org/show_bug.cgi?id=594066 for the
gnome-control-center part of this.
http://bugzilla.gnome.org/show_bug.cgi?id=594067
It seems a bit cleaner to make the MUTTER_DEBUG_XINERAMA variable
that sets up fake Xinerama take effect even if Xinerama is active;
this means we don't count on Xinerama (or Xrandr if we switch tot
that) special casing the case of one monitor.
http://bugzilla.gnome.org/show_bug.cgi?id=593404
Unminimize minimized windows passed to meta_workspace_activate_with_focus()
by calling meta_window_activate() on them instead of meta_window_focus()
and meta_window_raise(). This fix makes sense because for the existing
usage inside Mutter meta_workspace_activate_with_focus() is never called
on a minimized window and for calls from outside Mutter there is no
point in focusing a minimized window without unminimizing it first.
Add a doc comment to meta_workspace_activate_with_focus().
http://bugzilla.gnome.org/show_bug.cgi?id=592393
The changes to enforce single handling of all key events were breaking
custom-alt-tab keypress handlers, since that code was assuming that
key event would get to process_tab_grab(), and then maybe to
process_event() and then to the plugin's xevent_filter to detect a
key release.
We centeralize all of this handling into process_tab_grab() and either
- Invoke a custom handler for the key press
- Select the current window on modifier release by calling a new
pseudo-binding "tab_popup_select"
- Cancel the grab on an unbound key by calling a new pseudo-binding
"tab_popup_cancel"
http://bugzilla.gnome.org/show_bug.cgi?id=590754
mutter_plugin_begin_modal() and mutter_plugin_begin_modal() allow putting
a plugin into a "modal" state. This means:
- The plugin has the keyboard and mouse grabbed
- All keyboard and mouse events go exclusively to the plugin
mutter-plugin.[ch]: Add public API
compositor.c compositor-private.h: Implement the API
mutter-plugin-manager.c: When reloading plugins, make sure none of them
are modal at that moment, and if so force-unmodal them.
common.h: Add META_GRAB_OP_COMPOSITOR
display: When display->grab_op is META_GRAB_OP_COMPOSITOR forward relevant
events exclusively to the compositor.
http://bugzilla.gnome.org/show_bug.cgi?id=590754
Only process each key event once. If all keys are grabbed, then
don't also look for handlers for a key shortcut after processing
the grab op. If all keys are grabbed or we find a key shortcut,
don't pass the event on to the compositing mananger.
http://bugzilla.gnome.org/show_bug.cgi?id=590754
The previous notification code was attempting to use the "modified"
boolean returned from set_title_text, but "that boolean doesn't mean
what you think it means". It actually means "I truncated the title".
Just always notify, it's far simpler than trying to compute
when we don't need to, and callers can compress if they really need
to.
mutter-window.c originally grew an #include "window-private.h" for
window->override_redirect, but that was just fixed. However since
then it also ended up relying on a few other minor private bits.
To fix that, add meta_window_is_mapped, promote meta_window_toplevel_is_mapped
to public, and use the public MetaDisplay accessor.
The functionality to propagate errors for other displays to other
a "foreign error handler" was Soeren's compositor and is no longer
being used. Remove it.
(Now that error.h is being installed and scanned, we need to either
do this or add XErrorEvent to xlib-2.0.gir and rename ErrorHandler
to MetaErrorHandler. This way is a bit simpler.)
When we first start up, we do not want to run effects on any pre-exising
windows (this is either the case we are starting up and there are no windows,
or we are replacing an exisint window manager, or worse, we crashed, and we
just want to get to the desired desktop as quick as possible).
Dithered about where to place the check; putting into the plugin manager
reduces the number of places (and files) in which it needs to be done.
It's useful for plugins to be able to get access to the
startup-notification data that Mutter already has. Add
an accessor and change signal when recieve an event.
When window initially maps, use the more recent of NET_WM_USER_TIME and
startup notification timestamps to compare against last known user action to
decide whether to focus the window or not. Once we show the window, clear
the initial_timestamp_set flag, so the startup notification timestamp is not
taken into account again.
Based on patch for metacity by Alexander Larsson
http://bugzilla.gnome.org/show_bug.cgi?id=573922
We store a pointer to the texture independently of the ClutterContainer
internals, and rely on the pointer remaining valid until we run dispose.
Since we also provide public API to access this pointer, we should not
rely on the reference ClutterContainer holds to ensure that texture will
not be destroyed (e.g., some nasty developer could reparent the texture).
We were freeing the description string in dispose and not setting it to NULL,
thus leaving around a dangling pointer for the duration of the disposal.
This commit moves the free into the finalize vfuction, where it belongs.
Many override-redirect windows (including the Metacity UI windows!)
will have NET_WM_WINDOW_TYPE_NORMAL set on them because of shared
code paths with normal windows in toolkits.
Some current Compositor plugins (default plugin and gnome-shell)
check type == NORMAL to determine if to run effects. While fixing
such plugins to also check if the window is override-redirect is
posisble, it seems cleanest to simply not allow any of the decorated
window types to be set on an override-redirect window and to force
these types to META_WINDOW_OVERRIDE_OTHER. This will prevent other
similar problems from showing up in the future.
http://bugzilla.gnome.org/show_bug.cgi?id=590971
When calculating maximum permissible size of our frame window, we need to
avoid an overflow if the application set its max size hint to INT_MAX.
http://bugzilla.gnome.org/show_bug.cgi?id=590627
As a sideffect of commit a576f7a1ea, override
redirect windows of type _NET_WM_WINDOW_TYPE_NORMAL do not have their
features recalculated during MetaWindow construction (same as regular
windows of type _NET_WM_WINDOW_TYPE_NORMAL), so we need to set the initial
values accordingly.
Although the spec designates some window types as typically used for
override redirect windows, it does not prohibit the use of these with
managed windows, so we should not abort if we encounter one of these.
http://bugzilla.gnome.org/show_bug.cgi?id=583870
As with other events, we want to pass through scroll events (button 4/5 presses)
to the compositor, whether or not they are associated with a particular MetaWindow;
do this by simply falling through to the normal code path instead of
separately delivering the events to the compositor.
http://bugzilla.gnome.org/show_bug.cgi?id=588232
Setting the size of the texture causes the minimum and preferred width and
height values to be fixed at the set value. The normal requisition functions
of ClutterTexture will already report the size of the texture pixmap as the
natural size, but also allow scaling down as needed if less space is
available. We don't need that here, but we want to allow someone to make
a ClutterClone of the texture actor.
With recent changes, Clutter no longer sets up the viewport correctly,
unless it receives ConfigureNotify events. If there is a plugin with
an xevent_filter function, then it's that plugins responsibility to pass
the event to Clutter if it doesn't want it. If there is no plugin,
or the plugin doesn't have an xevent_filter function, then we should
call clutter_x11_handle_event() ourselves.
http://bugzilla.gnome.org/show_bug.cgi?id=589419
When a windows contents or shape changes, we schedule a redraw
with clutter_actor_queue_redraw(); we need to queue the redraw
on the shaped texture rather than on the window actor to support
cloning of just the shaped texture without the shadow: that
is, the shaped is what is really changing and it may be
visible via a clone even if the MutterWindow itself is not
visible.
http://bugzilla.gnome.org/show_bug.cgi?id=589429
MetaPreview is only built into libmutter-private, and not included in
the mutter executable. Linking mutter against libmutter-private was
inadvertently added when the introspection build process was set up,
but isn't actually needed, and if -Wl,-as-needed is added during the
build process, then the libmutter-private dependency will be skipped.
* Don't link mutter (or the test programs) against libmutter-private
* Exclude meta-preview.h from the set of headers we feed into the
introspection build process
Reported by Patryk Zawadzki
http://bugzilla.gnome.org/show_bug.cgi?id=587975
* Make generation of the .gir file work for srcdir != builddir
* Add files to CLEANFILES as needed
* Don't distribute the generated file mutter.schemas
When we are painting a stack of 5-10 maximized windows, the
standard bottom-to-top method of drawing every actor results
in a tremendous amount of overdraw and can easily max out
the available memory bandwidth on a low-end* graphics chipset.
It's even worse if window textures are being accessed over
the AGP bus.
When we have opaque windows, we can go ahead and compute visibility
ourselves (in classic X-server fashion) and use that information to
restrict drawing obscured actors.
* Add MutterWindowGroup - a ClutterGroup subclass with logic
for figuring out obscured regions.
* Add mutter_window_get_obscured_region() to get the region
obscured by that window.
* Add mutter_shaped_texture_set_clip_region() to hint
a clip region to the painting code; this is set based on
the computed visible region of MutterWindowGroup.
* Add tidy_texture_frame_set_needs_paint() to hint that the
paint can be skipped entirely; this is used when we detect
that the window shadow is entirely obscured.
http://bugzilla.gnome.org/show_bug.cgi?id=587344
If we are starting on something other than the first workspace,
meta_compositor_switch_workspace() will be called before
meta_compositor_manage_screen(); guard against that.
Previously, changes to the visibility of a window could be indicated
by meta_compositor_map_window(), meta_compositor_unminimize_window(),
meta_compositor_set_window_hidden(), etc, with the exact behavior
depending on the 'live_hidden_windows' preference.
Simplify this so that visibility is controlled by:
meta_compositor_show_window()
meta_compositor_hide_window()
With an 'effect' parameter provided to indicate the appropriate
effect (CREATE/UNMINIMIZE/MINIMIZE/DESTROY/NONE.)
The map state of the window is signalled separately by:
meta_compositor_map_window()
meta_compositor_unmap_window()
And is used only to control resource handling.
Other changes:
* The desired effect on show/hide is explicitly stored in
MetaWindow, avoiding the need for the was_minimized flag.
At idle, once we calculate the window state, we pass the
effect to the compositor if it matches the new window
state, and then clear the effect to start over for future
map state changes.
* meta_compositor_switch_workspace() is called before any windows
are hidden or shown, allowing the compositor to avoid hiding
or showing an effect for windows involved in the switch.
http://bugzilla.gnome.org/show_bug.cgi?id=582341
* Handling of post-effect cleanups for MutterWindow are
simplified - instead of trying to do different things based
on the individual needs of different effects, we just wait until
all effects complete and sync the window state to what it
should be.
* On unmap, once we destroy the pixmap, we tell ClutterX11Pixmap
that we've done so, so it can clean up and unbind. (The
unbinding doesn't seem to be working properly because of
ClutterGLXPixmap or video driver issues.)
http://bugzilla.gnome.org/show_bug.cgi?id=587251
Clean up mutter_window_effect_in_progress() by removing the
include_destroy parameter which was used only in one place that
could be easily done otherwise. (There was another use in
mutter_window_sync_actor_position() that had no point and looked
unintended.)
http://bugzilla.gnome.org/show_bug.cgi?id=587251
Add a paint function that checks all windows for repair and
shape updates; this:
- simplifies the logic for when a window needs to be repaired
- avoids duplicate work when we get multiple damage effects
- avoids the need to look ahead in the event queue
Instead of relying on repair to implicitly resize the
MutterWindow actor, set the size explicitly when the core
code updates the geometry. (This is needed because we haven't
repaired yet when we start an animation, and the animation
may depend on the size to, e.g., rescale from the center.)
Because the core geometry update happens before we start
maximize/unmaximize effects we need to work around this by
passing both the old and new geometry to the compositor.
http://bugzilla.gnome.org/show_bug.cgi?id=587251
Putting hidden windows in the desktop layer is pointless - in
the desktop layer isn't necessary below all visible windows,
and we are hiding the windows by other means. And the movement
isn't reliable because nothing sets stack->needs_relayer, so
windows can get stuck in the desktop layer after being
rehidden.
http://bugzilla.gnome.org/show_bug.cgi?id=587251
compositor.c: Move MutterWindow code to mutter-window.c;
rename map_win() to mutter_window_map(), etc.
mutter-window-private.h: New private header file for
MutterWindow functions used internally to the compositor.
compositor-mutter.h: Move MutterWindow declarations to
mutter-window.h; move a couple of private functions to
compositor-private.h
compositor-private.h: Move MetaCompScreen declaration to here:
Conceptually it's private to compositor.c, but MutterWindow
manipulates some of the lists directly for now.
mutter-plugin.c compositor.c: Don't call mutter_window_effect_completed()
for MUTTER_PLUGIN_SWITCH_WORKSPACE, but use a new
mutter_switch_workspace_completed(), since the window is
just used to identify a screen.
http://bugzilla.gnome.org/show_bug.cgi?id=587251
Separate code related to creating the gaussian-blurred shadow texture
into a separate file.
Move the definition of MetaCompositor into a compositor-private.h
so that the shadow code can cache the source in the compositor
structure.
http://bugzilla.gnome.org/show_bug.cgi?id=587251
The patch adds GLib marshalling code to Mutter, since it's required for the "workspace-switched" signal.
The definition of MetaMotionDirection enum is moved to common.h since it's now used in workspace.c.
A little cleaning is done in workspace.c:meta_workspace_activate_with_focus(), where compositor-specific code is merged with the rest of the function (required to emit signal), removing #ifdefs.
Remove a number of functions that were either entirely unimplemented
or had empty implementations for the Clutter-compositor.
meta_compositor_begin_move()
meta_compositor_update_move()
meta_compositor_end_move()
meta_compositor_set_active_window()
meta_compositor_free_window()
http://bugzilla.gnome.org/show_bug.cgi?id=581813
Now that we only have one compositor, there's no reason to access the
compositor functions through a vtable. Remove the MetaCompositor virtualization
and make the clutter code implement the meta_compositor_* functions
directly.
Move the checks for the compositor being NULL from the vtable wrappers
to the calling code (most of them were already there, so just a few
needed to be added)
Note: the compositor is actually hard-coded on at the moment and the plan
is to remove the non-composited code entirely, so the checks are
added only to keep things neat: they have no practical effect.
http://bugzilla.gnome.org/show_bug.cgi?id=581813
Mutter is a Clutter-based compositing manager. So, remove the code for
the XRender-based compositor, and make it mandatory to have XComposite,
XRender and Clutter.
Run-time support for non-composited operation is left for now.
* src/compositor/mutter/: Move files from this subdirectory into
the main compositor/ directory.
* compositor/compositor-xrender.ccompositor/compositor-xrender.h:
Remove
* include/compositor-clutter.h: Remove this stray file, it had been
replaced with compositor-mutter.h some time back.
http://bugzilla.gnome.org/show_bug.cgi?id=581813
Since the stack passed to the compositor now accurately reflects
the X stacking order, we need to treat hidden windows (which are
at the bottom of the X stacking order) specially - when the
compositor stacking order is synced, try to keep animating hidden
actors in their old positions in the stack.
http://bugzilla.gnome.org/show_bug.cgi?id=585984
With MetaStackTracker, it's no longer necessary to XQueryTree to
get a reasonably-up-to-date view of the server stacking order.
Add some comments explaining unclear aspects of
raise_window_relative_to_managed_windows() and with future possible
improvements.
http://bugzilla.gnome.org/show_bug.cgi?id=585984
Don't add override-redirect windows to MetaStack; we shouldn't
be restacking them.
Since we *aren't* stacking the override-redirect windows, we need to
be careful that to ignore them when looking for the top managed
window.
http://bugzilla.gnome.org/show_bug.cgi?id=585984
In order to properly track the stacking order for override-redirect
windows, move meta_compositor_sync_stack() call into MetaStackTracker.
In the new location, we sync the stack as a before-redraw idle function,
rather then using the freeze-thaw facilities of MetaStack. This is
simpler, and also properly compresses multiple stack changes on
notifications received from the X server.
http://bugzilla.gnome.org/show_bug.cgi?id=585984
Wedging override-redirect windows into the constraint code in stack.c
results in Mutter getting confused about the stacking order of
these windows with respect to other windows, and may also in some
cases cause Mutter to restack override-redirect windows.
core/stack-tracker.c core/stack-tracker.h: MetaStackTracker - combine
events received from the X server with local changes we have made
to come up with the best possible idea of what the stacking order
is at any one point in time.
core/screen.c core/screen-private.h: Create a MetaStackTracker for
the screen.
core/display.c: Feed relevant events to MetaStackTracker
core/frame.c core/screen.c core/stack.c: When we make changes to the
stacking order or add windows, record those changes immediatley
in MetaStackTracker so we have the information without waiting
for a round-trip.
include/ui.h ui/ui.c: meta_ui_create_frame_window add a return value
for the X request serial used to create the window.
http://bugzilla.gnome.org/show_bug.cgi?id=585984
Override-redirect windows should not be moved or resized by the
window manager.
- Mark override-redirect windows as already placed to avoid
placing them when first shown.
- Don't move-resize newly created override-redirect MetaWindow
- Don't queue a resize on override-redirect windows when reading
their WM_TRANSIENT_FOR hint.
- Add g_return_if_fail (!window->override_redirect) to catch
unexpected code paths that might result in override-redirect
windows being moved or resized.
http://bugzilla.gnome.org/show_bug.cgi?id=582639
Normally a window that is "on all workspaces", is also on a particular
workspace (to deal with being unstuck.) This is pointless for
override-redirect windows.
http://bugzilla.gnome.org/show_bug.cgi?id=582639
Don't include override-redirect windows when iterating the windows
in the screen. We don't need them for any of the current uses:
- Queueing redraws and resizes on managed windows
- Checking which windows should be added to a new workspace
http://bugzilla.gnome.org/show_bug.cgi?id=582639
Don't include override-redirect windows in the list return by
meta_display_list_windows(), since we almost never want to handle
them when considering "all window" for the display. Add a separate
meta_display_list_all_windows() that includes override-redirect
windows.
http://bugzilla.gnome.org/show_bug.cgi?id=582639
Skipping handling of properties for override redirect windows has
two advantages: first it reduces the amount of work needed to get
an override-redirect window (menu, tooltip, drag icon) onto the
screen. But more importantly, it reduces the number of code-paths
for an override-redirect to get into some code portion where it
isn't expected.
* Integrate the list of properties we load initially with the
list of property hooks; this avoids having two separate lists
that we have to keep in sync.
* Add a flag to MetaWindowPropHooks to indicate whether the
property should be handled for override-redirect windows;
currently we load a) properties that identify the window -
useful for debugging purposes b) WM_TRANSIENT_FOR (could be
used to associate menus with toplevels.)
* For properties that aren't always loaded through window-props.c,
add !window->override checks to places that trigger loading,
and add g_return_if_fail(!window->override) to the load
functions as a double-check.
http://bugzilla.gnome.org/show_bug.cgi?id=582639
Add g_return_if_fail() to check that window-management functions like
meta_window_maximize() aren't called on override-redirect windows.
This reveals that were were "unminimizing" override-redirect windows
when adding them; avoid doing that.
http://bugzilla.gnome.org/show_bug.cgi?id=582639
If a property has a reload function, but the standard property-fetching
mechanism isn't used (hooks->type == META_PROP_VALUE_INVALID), then the
a logic error (introduced in January) caused the hook to never be run.
This meant that changes to struts and icons weren't noticed.
Same as: http://bugzilla.gnome.org/show_bug.cgi?id=572573
The fix here is different in detail from that applied to Metacity, but
similar in spirit.
http://bugzilla.gnome.org/show_bug.cgi?id=585980
On subsequent changes, if there is a NET_WM_USER_TIME_WINDOW, then
read the property from that rather than from the main window.
(Fix an accidental regression: the right Window was being computed
but no longer passed in.)
http://bugzilla.gnome.org/show_bug.cgi?id=585979
This reverts commit 16d49695ad.
If we want an actor to go away deterministically, we should call
clutter_actor_destroy(); using unparent instead a) may result
leaks through cyclic ref counts, and b) will delay the deallocation
of the window texture in a garbage collected environment until
the next garbage collection, causing much greater transient use
of memory.
http://bugzilla.gnome.org/show_bug.cgi?id=580520
info->pending_input_region needed to be destroyed in
mutter_set_stage_input_region() before it was set to something
else or before it was reset to be full screen (region == None).
Set the initial input area to an empty region by
setting info->pending_input_region to an empty region by default
and setting it to None or a new region if a new input region is
specified.
Remove show_overlay_window() function that was used to set an empty
input region on start-up, and uses a call to do_set_stage_input_region()
with info->pending_input_region as an argument instead.
When we add a window and it gets hidden as the first thing, we need
to show not just the frame window, but also the window itself.
Otherwise when the window subsequently becomes visible, it will
just be an empty frame.
Add helper functions to reduce current code duplication and avoid
adding more.
http://bugzilla.gnome.org/show_bug.cgi?id=586309
Code:
All references in the code not related to themes, keybindings, or
GConf were changed from 'metacity' to 'mutter'. This includes, among other
things, strings, comments, the atoms used in the message protocol, and
the envvars used for debugging. The GConf schema file was reduced to
the 3 settings new to mutter.
The overall version was brought up to 2.27 to match current gnome.
Structure:
All files named '*metacity*' were renamed '*mutter*' with appropriate
changes in the automake system. Files removed are
doc/creating_themes, src/themes, doc/metacity-theme.dtd,
metacity.doap. These files will eventually end up in an external
gnome-wm-data module.
Installation location:
On the filesystem the mutter-plugindir was change from
$(libdir)/metacity/plugins/clutter to just $(libdir)/mutter/plugins.
The mutter-plugins.pc.in reflects these changes.
Note:
mutter.desktop.in and mutter-wm.desktop both continue to have
X-GNOME-WMSettingsModule=metacity set. This allows
gnome-control-center to continue using libmetacity.so for
configuration. This is fine since most the general keybindings and wm
settings are being read from /apps/metacity/* in gconf.
Change #define _XOPEN_SOURCE 500 to 600 in compositor-xrender.c to
avoid a bad interaction with -xc99 on Solaris.
Remove unneeded #define in compositor-mutter.c.
Based on a patch by Brian Cameron
http://bugzilla.gnome.org/show_bug.cgi?id=580662
Cogl's default blend function has been switched to expect premultiplied
alpha. Change the combine function and the colors we use to
modulate alpha to match.
http://bugzilla.gnome.org/show_bug.cgi?id=585480
It doesn't make sense to allow the window texture to be sliced,
but not allow the mask texture to be sliced. So, we should either
set 'disable-slicing' for the texture actor or not pass NO_SLICING when
creating the mask texture.
While slicing currently results in only the first layer being shown,
disabling slicing entirely would break windows larger than the texture
size limit. It would be straightforward to support multitexturing of
sliced textures in Cogl when all the textures are identically sized
and sliced identically, if it became a priority.
http://bugzilla.gnome.org/show_bug.cgi?id=585151
- Use float instead of ClutterUnit
- clutter_actor_get_size/position() return floats (remove some
stray usage of these functions in the default plugin as well.)
- Adapt to cogl_texture_new_from_data() changes
- Use blend strings to set up multitexturing
- Remove CLUTTER_UNITS_TO_FLOAT() usage
http://bugzilla.gnome.org/show_bug.cgi?id=585016
If the input region has been shaped, then clutter needs to
receive EnterNotify/LeaveNotify events in order to properly
send enter and leave events to actors when the pointer crosses
the boundary of the stage.
http://bugzilla.gnome.org/show_bug.cgi?id=578250
Also, use MetaWindows as the tab_popup keys rather than using (X) Windows
and then having to map back and forth everywhere, which is silly since
we never actually want the X Window.
http://bugzilla.gnome.org/show_bug.cgi?id=580917
Rather than trying to reverse-engineer what kind of tab/workspace
popup to create from within meta_display_begin_grab_op(), just create
the popup directly from do_choose_window()/handle_workspace_switch()
after completing the grab, since they already know which kind they
want.
Also add meta_screen_destroy_tab_popup()/_destroy_workspace_popup()
rather than having meta_display_end_grab_op() poke into MetaScreen's
internals itself.
http://bugzilla.gnome.org/show_bug.cgi?id=580917
