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BackgroundManager: Inline namespace (#1808)
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@ -1,169 +1,157 @@
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//
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// Copyright (C) 2014 Tom Beckmann
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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/*
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* SPDX-License-Identifier: GPL-3.0-or-later
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* SPDX-FileCopyrightText: 2023 elementary, Inc. (https://elementary.io)
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* 2014 Tom Beckmann
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*/
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namespace Gala {
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public class BackgroundManager : Meta.BackgroundGroup {
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private const double DIM_OPACITY = 0.55;
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private const int FADE_ANIMATION_TIME = 1000;
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public class Gala.BackgroundManager : Meta.BackgroundGroup {
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private const double DIM_OPACITY = 0.55;
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private const int FADE_ANIMATION_TIME = 1000;
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public signal void changed ();
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public signal void changed ();
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public WindowManager wm { get; construct; }
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public int monitor_index { get; construct; }
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public bool control_position { get; construct; }
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public WindowManager wm { get; construct; }
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public int monitor_index { get; construct; }
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public bool control_position { get; construct; }
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private BackgroundSource background_source;
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private Meta.BackgroundActor background_actor;
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private Meta.BackgroundActor? new_background_actor = null;
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private BackgroundSource background_source;
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private Meta.BackgroundActor background_actor;
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private Meta.BackgroundActor? new_background_actor = null;
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public BackgroundManager (WindowManager wm, int monitor_index, bool control_position = true) {
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Object (wm: wm, monitor_index: monitor_index, control_position: control_position);
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}
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public BackgroundManager (WindowManager wm, int monitor_index, bool control_position = true) {
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Object (wm: wm, monitor_index: monitor_index, control_position: control_position);
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}
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construct {
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background_source = BackgroundCache.get_default ().get_background_source (wm.get_display ());
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background_actor = create_background_actor ();
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construct {
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background_source = BackgroundCache.get_default ().get_background_source (wm.get_display ());
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background_actor = create_background_actor ();
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destroy.connect (on_destroy);
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}
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destroy.connect (on_destroy);
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}
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private void on_destroy () {
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BackgroundCache.get_default ().release_background_source ();
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background_source = null;
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private void on_destroy () {
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BackgroundCache.get_default ().release_background_source ();
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background_source = null;
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if (new_background_actor != null) {
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new_background_actor.destroy ();
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new_background_actor = null;
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}
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if (background_actor != null) {
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background_actor.destroy ();
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background_actor = null;
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}
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}
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private void swap_background_actor (bool animate) {
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return_if_fail (new_background_actor != null);
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var old_background_actor = background_actor;
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background_actor = new_background_actor;
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if (new_background_actor != null) {
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new_background_actor.destroy ();
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new_background_actor = null;
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if (old_background_actor == null)
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return;
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if (animate && wm.enable_animations) {
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var transition = new Clutter.PropertyTransition ("opacity");
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transition.set_from_value (255);
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transition.set_to_value (0);
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transition.duration = FADE_ANIMATION_TIME;
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transition.progress_mode = Clutter.AnimationMode.EASE_OUT_QUAD;
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transition.remove_on_complete = true;
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transition.completed.connect (() => {
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old_background_actor.destroy ();
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changed ();
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});
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old_background_actor.add_transition ("fade-out", transition);
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} else {
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old_background_actor.destroy ();
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changed ();
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}
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}
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private void update_background_actor (bool animate = true) {
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if (new_background_actor != null) {
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// Skip displaying existing background queued for load
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new_background_actor.destroy ();
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new_background_actor = null;
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}
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new_background_actor = create_background_actor ();
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var new_content = (Meta.BackgroundContent)new_background_actor.content;
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new_background_actor.visible = background_actor.visible;
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var background = new_content.background.get_data<unowned Background> ("delegate");
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if (background.is_loaded) {
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swap_background_actor (animate);
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return;
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}
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ulong handler = 0;
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handler = background.loaded.connect (() => {
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background.disconnect (handler);
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background.set_data<ulong> ("background-loaded-handler", 0);
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swap_background_actor (animate);
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});
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background.set_data<ulong> ("background-loaded-handler", handler);
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}
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public new void set_size (float width, float height) {
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if (width != background_actor.width || height != background_actor.height) {
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update_background_actor (false);
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}
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}
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private Meta.BackgroundActor create_background_actor () {
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unowned var display = wm.get_display ();
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var background = background_source.get_background (monitor_index);
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var background_actor = new Meta.BackgroundActor (display, monitor_index);
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unowned var content = (Meta.BackgroundContent) background_actor.content;
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content.background = background.background;
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if (background_source.should_dim) {
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content.vignette = true;
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content.brightness = DIM_OPACITY;
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}
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insert_child_below (background_actor, null);
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var monitor = display.get_monitor_geometry (monitor_index);
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background_actor.set_size (monitor.width, monitor.height);
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if (control_position) {
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background_actor.set_position (monitor.x, monitor.y);
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}
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ulong changed_handler = 0;
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changed_handler = background.changed.connect (() => {
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background.disconnect (changed_handler);
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changed_handler = 0;
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update_background_actor ();
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});
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background_actor.destroy.connect (() => {
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if (changed_handler != 0) {
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background.disconnect (changed_handler);
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changed_handler = 0;
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}
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var loaded_handler = background.get_data<ulong> ("background-loaded-handler");
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if (loaded_handler != 0) {
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background.disconnect (loaded_handler);
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background.set_data<ulong> ("background-loaded-handler", 0);
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}
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});
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return background_actor;
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if (background_actor != null) {
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background_actor.destroy ();
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background_actor = null;
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}
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}
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private void swap_background_actor (bool animate) {
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return_if_fail (new_background_actor != null);
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var old_background_actor = background_actor;
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background_actor = new_background_actor;
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new_background_actor = null;
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if (old_background_actor == null) {
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return;
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}
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if (animate && wm.enable_animations) {
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var transition = new Clutter.PropertyTransition ("opacity");
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transition.set_from_value (255);
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transition.set_to_value (0);
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transition.duration = FADE_ANIMATION_TIME;
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transition.progress_mode = Clutter.AnimationMode.EASE_OUT_QUAD;
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transition.remove_on_complete = true;
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transition.completed.connect (() => {
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old_background_actor.destroy ();
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changed ();
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});
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old_background_actor.add_transition ("fade-out", transition);
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} else {
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old_background_actor.destroy ();
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changed ();
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}
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}
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private void update_background_actor (bool animate = true) {
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if (new_background_actor != null) {
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// Skip displaying existing background queued for load
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new_background_actor.destroy ();
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new_background_actor = null;
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}
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new_background_actor = create_background_actor ();
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var new_content = (Meta.BackgroundContent)new_background_actor.content;
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new_background_actor.visible = background_actor.visible;
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var background = new_content.background.get_data<unowned Background> ("delegate");
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if (background.is_loaded) {
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swap_background_actor (animate);
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return;
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}
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ulong handler = 0;
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handler = background.loaded.connect (() => {
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background.disconnect (handler);
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background.set_data<ulong> ("background-loaded-handler", 0);
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swap_background_actor (animate);
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});
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background.set_data<ulong> ("background-loaded-handler", handler);
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}
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public new void set_size (float width, float height) {
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if (width != background_actor.width || height != background_actor.height) {
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update_background_actor (false);
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}
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}
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private Meta.BackgroundActor create_background_actor () {
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unowned var display = wm.get_display ();
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var background = background_source.get_background (monitor_index);
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var background_actor = new Meta.BackgroundActor (display, monitor_index);
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unowned var content = (Meta.BackgroundContent) background_actor.content;
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content.background = background.background;
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if (background_source.should_dim) {
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content.vignette = true;
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content.brightness = DIM_OPACITY;
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}
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insert_child_below (background_actor, null);
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var monitor = display.get_monitor_geometry (monitor_index);
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background_actor.set_size (monitor.width, monitor.height);
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if (control_position) {
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background_actor.set_position (monitor.x, monitor.y);
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}
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ulong changed_handler = 0;
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changed_handler = background.changed.connect (() => {
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background.disconnect (changed_handler);
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changed_handler = 0;
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update_background_actor ();
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});
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background_actor.destroy.connect (() => {
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if (changed_handler != 0) {
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background.disconnect (changed_handler);
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changed_handler = 0;
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}
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var loaded_handler = background.get_data<ulong> ("background-loaded-handler");
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if (loaded_handler != 0) {
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background.disconnect (loaded_handler);
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background.set_data<ulong> ("background-loaded-handler", 0);
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}
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});
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return background_actor;
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}
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}
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