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BackgroundManager: Inline namespace (#1808)
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| // | ||
| // Copyright (C) 2014 Tom Beckmann | ||
| // | ||
| // 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/>. | ||
| // | ||
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| namespace Gala { | ||
| public class BackgroundManager : Meta.BackgroundGroup { | ||
| private const double DIM_OPACITY = 0.55; | ||
| private const int FADE_ANIMATION_TIME = 1000; | ||
|
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| public signal void changed (); | ||
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| public WindowManager wm { get; construct; } | ||
| public int monitor_index { get; construct; } | ||
| public bool control_position { get; construct; } | ||
|
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| private BackgroundSource background_source; | ||
| private Meta.BackgroundActor background_actor; | ||
| private Meta.BackgroundActor? new_background_actor = null; | ||
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| public BackgroundManager (WindowManager wm, int monitor_index, bool control_position = true) { | ||
| Object (wm: wm, monitor_index: monitor_index, control_position: control_position); | ||
| } | ||
| /* | ||
| * SPDX-License-Identifier: GPL-3.0-or-later | ||
| * SPDX-FileCopyrightText: 2023 elementary, Inc. (https://elementary.io) | ||
| * 2014 Tom Beckmann | ||
| */ | ||
|
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| construct { | ||
| background_source = BackgroundCache.get_default ().get_background_source (wm.get_display ()); | ||
| background_actor = create_background_actor (); | ||
| public class Gala.BackgroundManager : Meta.BackgroundGroup { | ||
| private const double DIM_OPACITY = 0.55; | ||
| private const int FADE_ANIMATION_TIME = 1000; | ||
|
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| destroy.connect (on_destroy); | ||
| } | ||
| public signal void changed (); | ||
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| private void on_destroy () { | ||
| BackgroundCache.get_default ().release_background_source (); | ||
| background_source = null; | ||
| public WindowManager wm { get; construct; } | ||
| public int monitor_index { get; construct; } | ||
| public bool control_position { get; construct; } | ||
|
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| if (new_background_actor != null) { | ||
| new_background_actor.destroy (); | ||
| new_background_actor = null; | ||
| } | ||
| private BackgroundSource background_source; | ||
| private Meta.BackgroundActor background_actor; | ||
| private Meta.BackgroundActor? new_background_actor = null; | ||
|
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| if (background_actor != null) { | ||
| background_actor.destroy (); | ||
| background_actor = null; | ||
| } | ||
| } | ||
| public BackgroundManager (WindowManager wm, int monitor_index, bool control_position = true) { | ||
| Object (wm: wm, monitor_index: monitor_index, control_position: control_position); | ||
| } | ||
|
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| private void swap_background_actor (bool animate) { | ||
| return_if_fail (new_background_actor != null); | ||
| construct { | ||
| background_source = BackgroundCache.get_default ().get_background_source (wm.get_display ()); | ||
| background_actor = create_background_actor (); | ||
|
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| var old_background_actor = background_actor; | ||
| background_actor = new_background_actor; | ||
| destroy.connect (on_destroy); | ||
| } | ||
|
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| private void on_destroy () { | ||
| BackgroundCache.get_default ().release_background_source (); | ||
| background_source = null; | ||
|
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| if (new_background_actor != null) { | ||
| new_background_actor.destroy (); | ||
| new_background_actor = null; | ||
| } | ||
|
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| if (old_background_actor == null) | ||
| return; | ||
| if (background_actor != null) { | ||
| background_actor.destroy (); | ||
| background_actor = null; | ||
| } | ||
| } | ||
|
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| private void swap_background_actor (bool animate) { | ||
| return_if_fail (new_background_actor != null); | ||
|
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| if (animate && wm.enable_animations) { | ||
| var transition = new Clutter.PropertyTransition ("opacity"); | ||
| transition.set_from_value (255); | ||
| transition.set_to_value (0); | ||
| transition.duration = FADE_ANIMATION_TIME; | ||
| transition.progress_mode = Clutter.AnimationMode.EASE_OUT_QUAD; | ||
| transition.remove_on_complete = true; | ||
| transition.completed.connect (() => { | ||
| old_background_actor.destroy (); | ||
| var old_background_actor = background_actor; | ||
| background_actor = new_background_actor; | ||
| new_background_actor = null; | ||
|
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| changed (); | ||
| }); | ||
| if (old_background_actor == null) { | ||
| return; | ||
| } | ||
|
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| old_background_actor.add_transition ("fade-out", transition); | ||
| } else { | ||
| if (animate && wm.enable_animations) { | ||
| var transition = new Clutter.PropertyTransition ("opacity"); | ||
| transition.set_from_value (255); | ||
| transition.set_to_value (0); | ||
| transition.duration = FADE_ANIMATION_TIME; | ||
| transition.progress_mode = Clutter.AnimationMode.EASE_OUT_QUAD; | ||
| transition.remove_on_complete = true; | ||
| transition.completed.connect (() => { | ||
| old_background_actor.destroy (); | ||
|
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| changed (); | ||
| } | ||
| }); | ||
|
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| old_background_actor.add_transition ("fade-out", transition); | ||
| } else { | ||
| old_background_actor.destroy (); | ||
| changed (); | ||
| } | ||
| } | ||
|
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| private void update_background_actor (bool animate = true) { | ||
| if (new_background_actor != null) { | ||
| // Skip displaying existing background queued for load | ||
| new_background_actor.destroy (); | ||
| new_background_actor = null; | ||
| } | ||
| private void update_background_actor (bool animate = true) { | ||
| if (new_background_actor != null) { | ||
| // Skip displaying existing background queued for load | ||
| new_background_actor.destroy (); | ||
| new_background_actor = null; | ||
| } | ||
|
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| new_background_actor = create_background_actor (); | ||
| var new_content = (Meta.BackgroundContent)new_background_actor.content; | ||
| new_background_actor.visible = background_actor.visible; | ||
| new_background_actor = create_background_actor (); | ||
| var new_content = (Meta.BackgroundContent)new_background_actor.content; | ||
| new_background_actor.visible = background_actor.visible; | ||
|
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| var background = new_content.background.get_data<unowned Background> ("delegate"); | ||
| var background = new_content.background.get_data<unowned Background> ("delegate"); | ||
|
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| if (background.is_loaded) { | ||
| swap_background_actor (animate); | ||
| return; | ||
| } | ||
| if (background.is_loaded) { | ||
| swap_background_actor (animate); | ||
| return; | ||
| } | ||
|
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| ulong handler = 0; | ||
| handler = background.loaded.connect (() => { | ||
| background.disconnect (handler); | ||
| background.set_data<ulong> ("background-loaded-handler", 0); | ||
| ulong handler = 0; | ||
| handler = background.loaded.connect (() => { | ||
| background.disconnect (handler); | ||
| background.set_data<ulong> ("background-loaded-handler", 0); | ||
|
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| swap_background_actor (animate); | ||
| }); | ||
| background.set_data<ulong> ("background-loaded-handler", handler); | ||
| } | ||
| swap_background_actor (animate); | ||
| }); | ||
| background.set_data<ulong> ("background-loaded-handler", handler); | ||
| } | ||
|
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| public new void set_size (float width, float height) { | ||
| if (width != background_actor.width || height != background_actor.height) { | ||
| update_background_actor (false); | ||
| } | ||
| public new void set_size (float width, float height) { | ||
| if (width != background_actor.width || height != background_actor.height) { | ||
| update_background_actor (false); | ||
| } | ||
| } | ||
|
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| private Meta.BackgroundActor create_background_actor () { | ||
| unowned var display = wm.get_display (); | ||
| private Meta.BackgroundActor create_background_actor () { | ||
| unowned var display = wm.get_display (); | ||
|
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| var background = background_source.get_background (monitor_index); | ||
| var background_actor = new Meta.BackgroundActor (display, monitor_index); | ||
| var background = background_source.get_background (monitor_index); | ||
| var background_actor = new Meta.BackgroundActor (display, monitor_index); | ||
|
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| unowned var content = (Meta.BackgroundContent) background_actor.content; | ||
| content.background = background.background; | ||
| unowned var content = (Meta.BackgroundContent) background_actor.content; | ||
| content.background = background.background; | ||
|
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| if (background_source.should_dim) { | ||
| content.vignette = true; | ||
| content.brightness = DIM_OPACITY; | ||
| } | ||
| if (background_source.should_dim) { | ||
| content.vignette = true; | ||
| content.brightness = DIM_OPACITY; | ||
| } | ||
|
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| insert_child_below (background_actor, null); | ||
| insert_child_below (background_actor, null); | ||
|
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| var monitor = display.get_monitor_geometry (monitor_index); | ||
| background_actor.set_size (monitor.width, monitor.height); | ||
| var monitor = display.get_monitor_geometry (monitor_index); | ||
| background_actor.set_size (monitor.width, monitor.height); | ||
|
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| if (control_position) { | ||
| background_actor.set_position (monitor.x, monitor.y); | ||
| } | ||
| if (control_position) { | ||
| background_actor.set_position (monitor.x, monitor.y); | ||
| } | ||
|
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| ulong changed_handler = 0; | ||
| changed_handler = background.changed.connect (() => { | ||
| ulong changed_handler = 0; | ||
| changed_handler = background.changed.connect (() => { | ||
| background.disconnect (changed_handler); | ||
| changed_handler = 0; | ||
| update_background_actor (); | ||
| }); | ||
|
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| background_actor.destroy.connect (() => { | ||
| if (changed_handler != 0) { | ||
| background.disconnect (changed_handler); | ||
| changed_handler = 0; | ||
| update_background_actor (); | ||
| }); | ||
| } | ||
|
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| background_actor.destroy.connect (() => { | ||
| if (changed_handler != 0) { | ||
| background.disconnect (changed_handler); | ||
| changed_handler = 0; | ||
| } | ||
|
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| var loaded_handler = background.get_data<ulong> ("background-loaded-handler"); | ||
| if (loaded_handler != 0) { | ||
| background.disconnect (loaded_handler); | ||
| background.set_data<ulong> ("background-loaded-handler", 0); | ||
| } | ||
| }); | ||
| var loaded_handler = background.get_data<ulong> ("background-loaded-handler"); | ||
| if (loaded_handler != 0) { | ||
| background.disconnect (loaded_handler); | ||
| background.set_data<ulong> ("background-loaded-handler", 0); | ||
| } | ||
| }); | ||
|
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| return background_actor; | ||
| } | ||
| return background_actor; | ||
| } | ||
| } |