mirror of
https://github.com/elementary/gala.git
synced 2024-08-17 11:00:28 +03:00
133 lines
3.5 KiB
Vala
133 lines
3.5 KiB
Vala
//
|
|
// Copyright (C) 2012 Tom Beckmann, Rico Tzschichholz
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
//
|
|
|
|
namespace Gala
|
|
{
|
|
/**
|
|
* Creates a new ClutterTexture with an icon for the window at the given size.
|
|
* This is recommended way to grab an icon for a window as this method will make
|
|
* sure the icon is updated if it becomes available at a later point.
|
|
*/
|
|
public class WindowIcon : Clutter.Texture
|
|
{
|
|
static Bamf.Matcher matcher;
|
|
|
|
static construct
|
|
{
|
|
matcher = Bamf.Matcher.get_default ();
|
|
}
|
|
|
|
public Meta.Window window { get; construct; }
|
|
public int icon_size { get; construct; }
|
|
public int scale { get; construct; }
|
|
|
|
/**
|
|
* If set to true, the SafeWindowClone will destroy itself when the connected
|
|
* window is unmanaged
|
|
*/
|
|
public bool destroy_on_unmanaged {
|
|
get {
|
|
return _destroy_on_unmanaged;
|
|
}
|
|
construct set {
|
|
if (_destroy_on_unmanaged == value)
|
|
return;
|
|
|
|
_destroy_on_unmanaged = value;
|
|
if (_destroy_on_unmanaged)
|
|
window.unmanaged.connect (unmanaged);
|
|
else
|
|
window.unmanaged.disconnect (unmanaged);
|
|
}
|
|
}
|
|
|
|
bool _destroy_on_unmanaged = false;
|
|
bool loaded = false;
|
|
uint32 xid;
|
|
|
|
/**
|
|
* Creates a new WindowIcon
|
|
*
|
|
* @param window The window for which to create the icon
|
|
* @param icon_size The size of the icon in pixels
|
|
* @param scale The desired scale of the icon
|
|
* @param destroy_on_unmanaged see destroy_on_unmanaged property
|
|
*/
|
|
public WindowIcon (Meta.Window window, int icon_size, int scale = 1, bool destroy_on_unmanaged = false)
|
|
{
|
|
Object (window: window,
|
|
icon_size: icon_size,
|
|
destroy_on_unmanaged: destroy_on_unmanaged,
|
|
scale: scale);
|
|
}
|
|
|
|
construct
|
|
{
|
|
width = icon_size * scale;
|
|
height = icon_size * scale;
|
|
xid = (uint32) window.get_xwindow ();
|
|
|
|
// new windows often reach mutter earlier than bamf, that's why
|
|
// we have to wait until the next window opens and hope that it's
|
|
// ours so we can get a proper icon instead of the default fallback.
|
|
var app = matcher.get_application_for_xid (xid);
|
|
if (app == null)
|
|
matcher.view_opened.connect (retry_load);
|
|
else
|
|
loaded = true;
|
|
|
|
update_texture (true);
|
|
}
|
|
|
|
~WindowIcon ()
|
|
{
|
|
if (!loaded)
|
|
matcher.view_opened.disconnect (retry_load);
|
|
}
|
|
|
|
void retry_load (Bamf.View view)
|
|
{
|
|
var app = matcher.get_application_for_xid (xid);
|
|
|
|
// retry only once
|
|
loaded = true;
|
|
matcher.view_opened.disconnect (retry_load);
|
|
|
|
if (app == null)
|
|
return;
|
|
|
|
update_texture (false);
|
|
}
|
|
|
|
void update_texture (bool initial)
|
|
{
|
|
var pixbuf = Gala.Utils.get_icon_for_xid (xid, icon_size, scale, !initial);
|
|
|
|
try {
|
|
set_from_rgb_data (pixbuf.get_pixels (), pixbuf.get_has_alpha (),
|
|
pixbuf.get_width (), pixbuf.get_height (),
|
|
pixbuf.get_rowstride (), (pixbuf.get_has_alpha () ? 4 : 3), 0);
|
|
} catch (Error e) {}
|
|
}
|
|
|
|
void unmanaged (Meta.Window window)
|
|
{
|
|
destroy ();
|
|
}
|
|
}
|
|
}
|