display.c is getting a bit crowded. Move most of the handling
out to another file, events.c.
The long-term goal is to have generic event handling here, with
backend-specific handling for the types of windows and such.
If we have a CLICKING grab op we still need to send events to xwayland
so that we get them back for gtk+ to process thus we can't steer
wayland input focus away from it.
https://bugzilla.gnome.org/show_bug.cgi?id=726123
This ensures that we send the proper leave and enter events to wayland
clients.
Particularly, this solves a bug in SSD xwayland windows where clicking
and dragging on the title bar to move the window only works on the odd
turn (unless the pointer moves away from the title bar between
tries). This happens because xwayland gets a button press but doesn't
see the release so when it gets the next button press it discards it
because its pointer button tracking logic says that the button is
already pressed. Sending the proper wayland pointer leave event fixes
it since wayland clients must forget about button state at that point.
https://bugzilla.gnome.org/show_bug.cgi?id=726123
At one point, it was supported to run mutter without a compositor,
but we don't allow that any longer. A lot of code already assumes
display->compositor exists and doesn't check for a NULL pointer,
so just kill the rest of the checks.
This is specifically about managing X11 windows, not necessarily
running as an X11 compositor. By that I mean that this code is
still used for XWayland windows, and event handling is still and
modesetting / monitor management is still in core/.
This is also a fairly conservative move. We don't move anything
like screen.c or bell.c in here, even though those are really
only for X11 clients.
This is fairly simple and basic for now, with just skip_taskbar /
skip_pager, but eventually a lot of "WM policy" like this, including
move-resize, will be in subclasses for each individual surface.
We try to exempt CSD windows from being forced fullscreen if they are
undecorated and the size of the screen; however, we also catch almost
all windows that *do* need to be forced fullscreen in this check, since
they also have decorations turned off.
Identify actual CSD windows by checking whether _GTK_FRAME_EXTENTS is set -
GTK+ will always set this on CSD windows even if they have no invisible
borders or shadows at the current time.
We explicitly turn off the legacy-fullscreen check for native wayland windows
so we don't start legacy-fullscreening them if the new
meta_window_is_client_decorated() is later made more accurate.
https://bugzilla.gnome.org/show_bug.cgi?id=723029
The user_rect represents the unconstrainted window size, and lots
of code in mutter assumes it can resize to the user_rect at any
time. If we wait for an attach to ACK and save the user rect, we'll
see lots of flickering as code is resizing to the old user_rect
at any time.
Make it a compile-time flag rather than a run-time flag, because
practically any time you're going to be debugging event spewing,
you're going to have to recompile anyway. Remove the WITH_VERBOSE_MODE
checks, too.
Which is used for Wayland popup grabs.
The issue here is that we don't want the code that raises or focuses
windows based on mouse ops to run while a client has a grab.
We still keep the "old" grab infrastructure in place for now, but
ideally we'd replace it eventually with a better grab-op infrastructure.
Clutter's input device initial position defaults to (-1, -1) on most
backends but for the evdev backend we changed it to be inside the
stage to prevent the pointer from wandering outside the stage until it
first enters, after which our constraining callback won't let it go
out.
This makes us be in sync with the real position from the start.
_SVID_SOURCE has been deprecated in newer versions of glibc breaking
-WError; the recommended replacement of _DEFAULT_SOURCE is fairly
new, so switch to _XOPEN_SOURCE instead.
The "original coordinates" passed into meta_window_place() were the
coordinates of the client rectangle not the frame rectangle. When
meta_window_place() didn't place because the window was manually
positioned (e.g., 'xterm -geometry +x+y') that resulted in a window
being offset by the frame dimensions.
https://bugzilla.gnome.org/show_bug.cgi?id=724049
We need to resolve the keycode from the keysym again since the keycode
might have changed if there was a keymap switch between the grab and
the ungrab.
Before starting to use display_get_keybinding() we could compare
MetaKeyBinding.modifiers with MetaKeyCombo.modifiers directly. Now, we
need to resolve the virtual modifiers to match with the mask.
This allows us to look for a match with an O(1) search instead of O(n)
which is nice, particularly when running as a wayland compositor in
which case we have to do this search for every key press event (as
opposed to only when our passive grab triggers in the X compositor
case).
We actually need two hash tables. On one we keep all the keybindings
themselves which allows us to add external grabs without constantly
re-allocating the array we were using previously.
The other hash table is an index of the keybindings in the first table
by their keycodes and mask which is how we actually match the key
press events. This second table thus needs to be rebuilt when the
keymap changes since keycodes have to be resolved then but since we're
only keeping pointers to the first table it's a fast operation.
https://bugzilla.gnome.org/show_bug.cgi?id=725588
Instead of looping over an array of keybindings to find the correct
binding, just use display_get_keybinding().
In the next commit, we'll change the array to be a hash map, so this
helps the patch be cleaner.
https://bugzilla.gnome.org/show_bug.cgi?id=725588
We don't want to match the keysym so that e.g. an accelerator
specified as "<Super>a" works if the current keymap has a keysym other
than 'a' for that keycode which means that the accelerator would
become inaccessible in a non-latin keymap.
This is inconvenient for users that often switch keyboard layouts, or
even have different layouts in different windows, since they expect
system-level keybindings to not be affected by the current layout.
https://bugzilla.gnome.org/show_bug.cgi?id=678001
The only events we handle as XIEvents are FocusIn/Out, Enter and
Leave. Motion, ButtonPress/Release, KeyPress/Release are handled
through clutter instead.
Among other things, this means we don't need to fake motion compression
by peeking over gdk event queue...
Mouse event handling was duplicated, resulting in weird interactions
if clutter was allowed to see certain events (for example under
wayland, where it gets all events). Because now clutter sees all
X events, even when running as an x11 compositor, we can handle
everything using the clutter variants.
At the same time, rewrite a little the passive button grab code,
to make it clear what is being matched on what and why.
We must spoof events to clutter even if they are associated
with a MetaWindow, because keyboard events are always associated
with one (the focus window), and we must process keybindings
for window togheter with the global ones if they include Super,
because we're not going to see them again.
... and individually. It turns out that updating the opaque region
was causing the shape region to be updated, which was causing a new
shape mask to be generated and uploaded to the GPU. Considering
GTK+ regenerates the opaque region on pretty much any focus change,
this is not good.
The handler pointer is dangling in MetaKeyBinding until
rebuild_key_binding_table() is run, so we can't dereference it.
Because we only need the flags at ungrab time, store a copy
in the MetaKeyBinding structure.
https://bugzilla.gnome.org/show_bug.cgi?id=724402
For decorated windows, we don't want to apply any input
shape, because the frame is always rectangular and eats
all the input.
The real check is in meta-window-actor, where we consider
if we need to apply the bounding shape and the input shape
(or the intersection of the two) to the surface-actor,
but as an optimization we avoid querying the server in
meta-window.
Additionally, for undecorated windows, the "has input shape"
check is wrong if the window has a bounding shape but not an
input shape.
