To make sure that they are still alive and detect hung clients.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

When xfwm4 needs to kill an unresponsive client, it will use the its PID
is known.

However, the _NET_WM_PID as defined in the extended window manager hint
mechanism is unreliable when the client runs within a sandbox, as it is
the client itself who sets that property using its own view of the PID.

The Xserver can provide a more accurate value of the client PID using
the XRes X11 extension, so use that protocol if available.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

The X-Resource extension client library (XRes) allows a client to query
the Xserver for various resources associated with an X11 client,
including its PID.

Add (optional) support for XRes in xfwm4 and use it for getting the
client's PID instead of relying on _NET_WM_PID.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

It's easier on the eyes...

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16713

If one of the required X11 extension is not available, the composiutor
cannot be used.

Yet xfwm4 would still try to enable the compositor for each screen,
which would not work and prevent xfwm4 from starting.

If we can't use the compositor, well, we'd better not use it...

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Clicking outside the tab-win would cancel the selection, make sure to
revert to the original first window of the list in that case, it feels
more natural and predictible.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16713

Without XRender, the mask would be misrendered and completely
transparent.

As a result, the entire pixmap would become totally transparent and all
window decorations become invisible.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16708

With Xi2, the clients needs to reset the valuators (for mouse wheel)
themselves, usually on focus events.

Qt instead does that on EnterNotify, but ignores the EnterNotify events
resulting from grabs first. This is a bug in Qt as that prevents the
valuators to be reset if the pointer enters the window while grabbed.

Precisely, xfwm4 would issue a pointer grab while cycling to prevent
from random button events, and would only ungrab after the client window
is raised and focused.

While this is a bug in Qt, we can still work around the issue in xfwm4
by not issuing a pointer grab and simply abort the window cycling when a
click occurs outside of the alt-tab window.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Update the Pango attributes whent he widget font factor is updated, then
repaint all frames.

With this, changing the scaling factor in the appearance settings
updates the title font dynamically as well.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16067

The font height is not used anymore, remove it.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16067

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16711

We need to keep the pango font attributes for the scale with HiDPI.

This reverts commit 34a31e27.

Bug: 16383

If the window has vanished, the XShape request will fail.

Make sure all XShape requests are protected by error traps.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

As we already do an error trap/push with X11 core devices, do the same
with Xi2 grabs and remove the check from the callers as it is not needed
anymore.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15891

When raising a transient window we would automatically raise its parent
windows.

However, if the transient and parent are not placed on the same layer,
we might raise the parent from a lower layer.

To avoid that issue, limit the scope of search to the same or higher
layers.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

When using automatic vblank mode, use a message instead of a warning.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

With vblank mode set to auto (default), use the GL renderer to select
XPresent on Intel and AMD if available.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

glEnable() is not once the texture type is chosen, no need to do that in
advance.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

An `else` statement was left after the recent code rework.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15852

Previous attempt to fix a crash with a screensize of 0, which can occur
without any output connected was incomplete (commit 3925109d) as a
client might still trigger a repaint by queuing up damages.

Make sure we take this case into account as well.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Simon Steinbeiss authored 5 years ago and Olivier Fourdan committed 5 years ago

Bug: #16382

After hovering the currently selected item the tabwin would be left
without a selected item. This patch makes sure that on the leave event
the selected item regains its selected style.

Also switch from GTK_STATE_FLAG_ACTIVE to GTK_STATE_FLAG_CHECKED.

Andre Miranda authored 5 years ago and Olivier Fourdan committed 5 years ago

Bug: 16644

GTimeVal is deprecated, use the GDK API du jour instead.

Bug: 16649

With Xi2 we need to use Xi2 routines.

But some client may issue standard X11 core protocol grabs the on the
client window.

Grabs from the standard core protocol and Xi2 grabs do not mix well.

So instead of ditching the Xi2 grabs, we issue the core protocol first,
check that it succeeds and only if that works we can issue the Xi2
grabs.

That keeps the Xi2 grabs logic while fixing the issue with X-AIR-Edit
which uses a passive grab on the pointer using core X11 protocol.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16649

This reverts commit aa3e3cac.

Bug: 16347

XInput2 passive button grab would not fail if the button is already
grabbed by the client.

X-AIR-Edit is such a client which issues a button grab on its own
window, meaning that with XI2 button it would not react to button events
anymore.

Revert to the standard grab button for the passive grabs so that such
apps can still work with xfwm4.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16348

When moving a maximized window, we would not restore the actual window
state.

With client-side decorations, that prevents shadows from being enabled.

Make sure to restore the actual client state when moving.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16067

The font height might be wrong, just get rid of it.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 16274

Blacklist the GL renderer "SVGA3D" to disable GL on Virtualbox.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Simon Steinbeiss authored 5 years ago and Olivier Fourdan committed 5 years ago

Bug: 16381

This can lead to misleading situations, e.g. if you have >1 display and
the edge of the next display is blurry/dark for no obvious reason.

Bug: 15984

When running remotely, the hostname would not show in the title initially.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15966

When using wireframe move/resize along with transparent window
decorations, the window would appear to move along with the frame.

This is because the move/resize operation updates the internal data
that the compositor uses for drawing the client decorations with a
different opacity.

To avoid the issue, just use the actual window positio nand size.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15974

Raise delay would be ignored, because on focus change, the newly
focused window would be raised as soon as it receives focus.

Use the raise delay timeout instead of raising the window immediately
so that the raise delay remains functional.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

The documentation for `EXT_texture_from_pixmap` states that a
compositor should bind and release the texture each time:

    [...]
    glXBindTexImageEXT()

    <Do rendering/compositing>

    glXReleaseTexImageEXT()
    [...]

Fix the compositor to adhere to the specification.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

If there is no primary monitor, i.e. because no monitor at all, there is
no point in updating the workarea.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15852

If no monitor is connected for a given screen, it's reported size will
be 0.

In that case, trying to repaint the screen using GLX for vsync will
crash.

Add a test to make sure the size of the screen is a thing, before
queuing up a repaint.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15884

That was inadvertently removed by commit 8a16ca2e - “menu: Remove
icons from window menu”.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 15709

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>
(cherry picked from commit 6caed779)

Bug: 15580

Following commit fa9517ea (“Raise all transients together”), xfwm4
would search for the deepest parent of a given transient and raise it to
bring all related windows together.

however, taking into account parents from the same group, it would raise
the lowest window while the others from the same group aren't raised
along with it, causing apparently random windows to be raised.

Make sure we pick only direct transients when walking down the windows
stack.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

Bug: 14959

Place dialogs without parent on the current monitor, i.e. the monitor
where the pointer currently resides.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>

This breaks zooming without GLX, reverting.

This reverts commit 18721a1a.

Signed-off-by: Olivier Fourdan <fourdan@xfce.org>