mirror of
https://github.com/elementary/gala.git
synced 2024-11-27 15:45:31 +03:00
269 lines
7.3 KiB
Vala
269 lines
7.3 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
|
|
{
|
|
public class Utils
|
|
{
|
|
// Cache xid:pixbuf and icon:pixbuf pairs to provide a faster way aquiring icons
|
|
static Gee.HashMap<string, Gdk.Pixbuf> xid_pixbuf_cache;
|
|
static Gee.HashMap<string, Gdk.Pixbuf> icon_pixbuf_cache;
|
|
static uint cache_clear_timeout = 0;
|
|
|
|
static construct
|
|
{
|
|
xid_pixbuf_cache = new Gee.HashMap<string, Gdk.Pixbuf> ();
|
|
icon_pixbuf_cache = new Gee.HashMap<string, Gdk.Pixbuf> ();
|
|
}
|
|
|
|
/**
|
|
* Clean icon caches
|
|
*/
|
|
static void clean_icon_cache (uint32[] xids)
|
|
{
|
|
var list = xid_pixbuf_cache.keys.to_array ();
|
|
var pixbuf_list = icon_pixbuf_cache.values.to_array ();
|
|
var icon_list = icon_pixbuf_cache.keys.to_array ();
|
|
|
|
foreach (var xid_key in list) {
|
|
var xid = (uint32)uint64.parse (xid_key.split ("::")[0]);
|
|
if (!(xid in xids)) {
|
|
var pixbuf = xid_pixbuf_cache.get (xid_key);
|
|
for (var j = 0; j < pixbuf_list.length; j++) {
|
|
if (pixbuf_list[j] == pixbuf) {
|
|
xid_pixbuf_cache.unset (icon_list[j]);
|
|
}
|
|
}
|
|
|
|
xid_pixbuf_cache.unset (xid_key);
|
|
}
|
|
}
|
|
}
|
|
|
|
public static void request_clean_icon_cache (uint32[] xids)
|
|
{
|
|
if (cache_clear_timeout > 0)
|
|
GLib.Source.remove (cache_clear_timeout);
|
|
|
|
cache_clear_timeout = Timeout.add_seconds (30, () => {
|
|
cache_clear_timeout = 0;
|
|
Idle.add (() => {
|
|
clean_icon_cache (xids);
|
|
return false;
|
|
});
|
|
return false;
|
|
});
|
|
}
|
|
|
|
/**
|
|
* returns a pixbuf for the application of this window or a default icon
|
|
**/
|
|
public static Gdk.Pixbuf get_icon_for_window (Meta.Window window, int size)
|
|
{
|
|
Gdk.Pixbuf? result = null;
|
|
|
|
var xid = (uint32)window.get_xwindow ();
|
|
var xid_key = "%u::%i".printf (xid, size);
|
|
|
|
if ((result = xid_pixbuf_cache.get (xid_key)) != null)
|
|
return result;
|
|
|
|
var app = Bamf.Matcher.get_default ().get_application_for_xid (xid);
|
|
result = get_icon_for_application (app, size);
|
|
|
|
xid_pixbuf_cache.set (xid_key, result);
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* returns a pixbuf for this application or a default icon
|
|
**/
|
|
public static Gdk.Pixbuf get_icon_for_application (Bamf.Application app, int size)
|
|
{
|
|
Gdk.Pixbuf? image = null;
|
|
bool not_cached = false;
|
|
|
|
string? icon = null;
|
|
string? icon_key = null;
|
|
|
|
if (app != null && app.get_desktop_file () != null) {
|
|
try {
|
|
var appinfo = new DesktopAppInfo.from_filename (app.get_desktop_file ());
|
|
if (appinfo != null) {
|
|
icon = Plank.Drawing.DrawingService.get_icon_from_gicon (appinfo.get_icon ());
|
|
icon_key = "%s::%i".printf (icon, size);
|
|
if ((image = icon_pixbuf_cache.get (icon_key)) == null) {
|
|
image = Plank.Drawing.DrawingService.load_icon (icon, size, size);
|
|
not_cached = true;
|
|
}
|
|
}
|
|
} catch (Error e) {
|
|
warning (e.message);
|
|
}
|
|
}
|
|
|
|
if (image == null) {
|
|
try {
|
|
unowned Gtk.IconTheme icon_theme = Gtk.IconTheme.get_default ();
|
|
icon = "application-default-icon";
|
|
icon_key = "%s::%i".printf (icon, size);
|
|
if ((image = icon_pixbuf_cache.get (icon_key)) == null) {
|
|
image = icon_theme.load_icon (icon, size, 0);
|
|
not_cached = true;
|
|
}
|
|
} catch (Error e) {
|
|
warning (e.message);
|
|
}
|
|
}
|
|
|
|
if (image == null) {
|
|
icon = "";
|
|
icon_key = "::%i".printf (size);
|
|
if ((image = icon_pixbuf_cache.get (icon_key)) == null) {
|
|
image = new Gdk.Pixbuf (Gdk.Colorspace.RGB, true, 8, size, size);
|
|
image.fill (0x00000000);
|
|
not_cached = true;
|
|
}
|
|
}
|
|
|
|
if (size != image.width || size != image.height)
|
|
image = Plank.Drawing.DrawingService.ar_scale (image, size, size);
|
|
|
|
if (not_cached)
|
|
icon_pixbuf_cache.set (icon_key, image);
|
|
|
|
return image;
|
|
}
|
|
|
|
/**
|
|
* get the next window that should be active on a workspace right now
|
|
**/
|
|
public static Meta.Window get_next_window (Meta.Workspace workspace, bool backward=false)
|
|
{
|
|
var screen = workspace.get_screen ();
|
|
var display = screen.get_display ();
|
|
|
|
var window = display.get_tab_next (Meta.TabList.NORMAL, screen,
|
|
screen.get_active_workspace (), null, backward);
|
|
|
|
if (window == null)
|
|
window = display.get_tab_current (Meta.TabList.NORMAL, screen, workspace);
|
|
|
|
return window;
|
|
}
|
|
|
|
/**
|
|
* get the number of toplevel windows on a workspace
|
|
**/
|
|
public static uint get_n_windows (Meta.Workspace workspace)
|
|
{
|
|
var n = 0;
|
|
foreach (var window in workspace.list_windows ()) {
|
|
if (window.is_on_all_workspaces ())
|
|
continue;
|
|
if (window.window_type == Meta.WindowType.NORMAL ||
|
|
window.window_type == Meta.WindowType.DIALOG ||
|
|
window.window_type == Meta.WindowType.MODAL_DIALOG)
|
|
n ++;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
static Gtk.CssProvider fallback_style = null;
|
|
|
|
public static Gtk.CssProvider get_default_style ()
|
|
{
|
|
if (fallback_style == null) {
|
|
fallback_style = new Gtk.CssProvider ();
|
|
try {
|
|
fallback_style.load_from_path (Config.PKGDATADIR + "/gala.css");
|
|
} catch (Error e) { warning (e.message); }
|
|
}
|
|
|
|
return fallback_style;
|
|
}
|
|
|
|
public static void get_window_frame_offset (Meta.Window window, out float x, out float y, out float width, out float height)
|
|
{
|
|
var actor = window.get_compositor_private () as Clutter.Actor;
|
|
var frame = window.get_outer_rect ();
|
|
x = actor.x - frame.x;
|
|
y = actor.y - frame.y;
|
|
width = actor.width - frame.width;
|
|
height = actor.height - frame.height;
|
|
}
|
|
|
|
public static void bell (Meta.Screen screen)
|
|
{
|
|
if (Meta.Prefs.bell_is_audible ())
|
|
Gdk.beep ();
|
|
else
|
|
screen.get_display ().get_compositor ().flash_screen (screen);
|
|
}
|
|
|
|
/**
|
|
* Plank DockTheme
|
|
*/
|
|
public class DockThemeManager : Object
|
|
{
|
|
Plank.DockPreferences? dock_settings = null;
|
|
Plank.Drawing.DockTheme? dock_theme = null;
|
|
|
|
public signal void dock_theme_changed (Plank.Drawing.DockTheme? old_theme,
|
|
Plank.Drawing.DockTheme new_theme);
|
|
|
|
DockThemeManager ()
|
|
{
|
|
dock_settings = new Plank.DockPreferences.with_filename (Environment.get_user_config_dir () + "/plank/dock1/settings");
|
|
dock_settings.notify["Theme"].connect (load_dock_theme);
|
|
}
|
|
|
|
public Plank.Drawing.DockTheme get_dock_theme ()
|
|
{
|
|
if (dock_theme == null)
|
|
load_dock_theme ();
|
|
|
|
return dock_theme;
|
|
}
|
|
|
|
public Plank.DockPreferences get_dock_settings ()
|
|
{
|
|
return dock_settings;
|
|
}
|
|
|
|
void load_dock_theme ()
|
|
{
|
|
var new_theme = new Plank.Drawing.DockTheme (dock_settings.Theme);
|
|
new_theme.load ("dock");
|
|
dock_theme_changed (dock_theme, new_theme);
|
|
dock_theme = new_theme;
|
|
}
|
|
|
|
static DockThemeManager? instance = null;
|
|
public static DockThemeManager get_default ()
|
|
{
|
|
if (instance == null)
|
|
instance = new DockThemeManager ();
|
|
|
|
return instance;
|
|
}
|
|
}
|
|
}
|
|
}
|