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Merge branch 'sessionmanagement' of https://github.com/buddiesofbudgi…
…e/budgie-desktop into sessionmanagement
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| * This file is part of budgie-desktop | ||
| * | ||
| * Copyright Budgie Desktop Developers | ||
| * | ||
| * 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 2 of the License, or | ||
| * (at your option) any later version. | ||
| */ | ||
|
|
||
| namespace Budgie { | ||
| public const string BACKGROUND_SCHEMA = "org.gnome.desktop.background"; | ||
| public const string ACCOUNTS_SCHEMA = "org.freedesktop.Accounts"; | ||
| public const string GNOME_COLOR_HACK = "budgie-control-center/pixmaps/noise-texture-light.png"; | ||
|
|
||
| public class Background { | ||
| private Settings? settings = null; | ||
|
|
||
| const int BACKGROUND_TIMEOUT = 850; | ||
|
|
||
| /* Ensure we're efficient with changed queries and dont update | ||
| * a bunch of times | ||
| */ | ||
| Gnome.BG? gnome_bg; | ||
| Subprocess? bg = null; | ||
|
|
||
| /** | ||
| * Determine if the wallpaper is a colour wallpaper or not | ||
| */ | ||
| private bool is_color_wallpaper(string bg_filename) { | ||
| if (gnome_bg.get_placement() == GDesktop.BackgroundStyle.NONE || bg_filename.has_suffix(GNOME_COLOR_HACK)) { | ||
| return true; | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| public Background() { | ||
| settings = new Settings(BACKGROUND_SCHEMA); | ||
| gnome_bg = new Gnome.BG(); | ||
|
|
||
| /* If the background keys change, proxy it to libgnomedesktop */ | ||
| settings.change_event.connect(() => { | ||
| gnome_bg.load_from_preferences(this.settings); | ||
| return false; | ||
| }); | ||
|
|
||
| gnome_bg.changed.connect(() => { | ||
| this.update(); | ||
| }); | ||
|
|
||
| /* Do the initial load */ | ||
| gnome_bg.load_from_preferences(this.settings); | ||
| } | ||
|
|
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| /** | ||
| * call accountsservice dbus with the background file name | ||
| * to update the greeter background if the display | ||
| * manager supports the dbus call. | ||
| */ | ||
| void set_accountsservice_user_bg(string background) { | ||
| DBusConnection bus; | ||
| Variant variant; | ||
|
|
||
| try { | ||
| bus = Bus.get_sync(BusType.SYSTEM); | ||
| } catch (IOError e) { | ||
| warning("Failed to get system bus: %s", e.message); | ||
| return; | ||
| } | ||
|
|
||
| try { | ||
| variant = bus.call_sync(ACCOUNTS_SCHEMA, "/org/freedesktop/Accounts", ACCOUNTS_SCHEMA, "FindUserByName", | ||
| new Variant("(s)", Environment.get_user_name()), new VariantType("(o)"), DBusCallFlags.NONE, -1, null); | ||
| } catch (Error e) { | ||
| warning("Could not contact accounts service to look up '%s': %s", Environment.get_user_name(), e.message); | ||
| return; | ||
| } | ||
|
|
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| string object_path = variant.get_child_value(0).get_string(); | ||
|
|
||
| try { | ||
| bus.call_sync(ACCOUNTS_SCHEMA, object_path, "org.freedesktop.DBus.Properties", "Set", | ||
| new Variant("(ssv)", "org.freedesktop.DisplayManager.AccountsService", "BackgroundFile", | ||
| new Variant.string(background) | ||
| ), new VariantType("()"), DBusCallFlags.NONE, -1, null); | ||
| } catch (Error e) { | ||
| warning("Failed to set the background '%s': %s", background, e.message); | ||
| } | ||
| } | ||
|
|
||
| void update() { | ||
| string? bg_filename = gnome_bg.get_filename();; | ||
| /* Set background image when appropriate, and for now dont parse .xml files */ | ||
| if (!this.is_color_wallpaper(bg_filename) && !bg_filename.has_suffix(".xml")) { | ||
| // we use swaybg to define the wallpaper - we need to keep track | ||
| // of what we create so that we kill it the next time a background is defined | ||
| string[] cmdline = { "swaybg", "-i", bg_filename }; | ||
| Subprocess new_bg; | ||
| try { | ||
| new_bg = new Subprocess.newv(cmdline, SubprocessFlags.NONE); | ||
| Timeout.add(BACKGROUND_TIMEOUT, () => { | ||
| // use a delay to allow process termination to complete | ||
| if (bg != null) { | ||
| bg.force_exit(); | ||
| } | ||
| bg = new_bg; | ||
| return false; | ||
| }); | ||
| } catch (Error e) { | ||
| warning("Error starting swaybg: %s", e.message); | ||
| } | ||
| set_accountsservice_user_bg(bg_filename); | ||
| } | ||
| } | ||
| } | ||
| } |
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