Applying the "dim window" effect to the MetaWindowActor has two avantages:
first it avoids triggering bugs where ClutterOffscreenEffect doesn't handle
clone paint correctly. Second, it avoids showing the window as dimmed in
alt-Tab and the overview, which is weird.
The small downside of this is that the shadow becomes slightly gray when
the window dimmed, which is wrong - if we switched from blending with gray
to a combination of desaturation and darkening, this problem wouldn't
happen.
Revert out the addition of startY to the shader, since we don't need it
and fix the application of alpha, since we need to handle alpha correctly
for the shadow.
https://bugzilla.gnome.org/show_bug.cgi?id=659634
Without this, the dim "fade" will start at the top of the untrimmed actor. With
a large enough draggable_border_width setting, this will show no fade at all.
https://bugzilla.gnome.org/show_bug.cgi?id=659302
The way the window dimmer shader is applied will cause rendering errors with
the rounded corners, invisible borders or shaped textures since it doesn't deal
well with the multitexturing used by the MetaShapedTexture. Use an off-screen
buffer to flatten the texture before being applied.
https://bugzilla.gnome.org/show_bug.cgi?id=659302
The shader currently forces GLSL 1.0 to avoid being incompatible with older hardware but is still using features not available in 1.0.
Strict compilers fail to compile the shader:
error C7506: OpenGL/ES does not define the global variable gl_TexCoord
As every hardware/driver that supports 1.0 also supports 1.10 bumping the version to fix it is safe.
https://bugzilla.gnome.org/show_bug.cgi?id=629343
Override the new mutter preference /apps/mutter/general/attach_modal_dialogs
to attach modal dialogs to their parent window. Animate the modal dialogs
expanding from the top of the parent window. Slowly dim the parent window
after the dialog comes up.
https://bugzilla.gnome.org/show_bug.cgi?id=612726
