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06ed9866da
The close button would be beyond the clip region of the stack for the first notification so we have to move them down slightly in order to prevent it from getting cut off.
101 lines
2.7 KiB
Vala
101 lines
2.7 KiB
Vala
//
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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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using Clutter;
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using Meta;
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namespace Gala.Plugins.Notify
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{
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public class NotificationStack : Actor
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{
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// we need to keep a small offset to the top, because we clip the container to
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// its allocations and the close button would be off for the first notification
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const int TOP_OFFSET = 2;
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const int ADDITIONAL_MARGIN = 12;
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public signal void animations_changed (bool running);
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public Screen screen { get; construct; }
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int animation_counter = 0;
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public NotificationStack (Screen screen)
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{
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Object (screen: screen);
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}
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construct
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{
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width = Notification.WIDTH + 2 * Notification.MARGIN + ADDITIONAL_MARGIN;
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clip_to_allocation = true;
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}
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public void show_notification (Notification notification)
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{
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if (animation_counter == 0)
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animations_changed (true);
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// raise ourselves when we got something to show
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get_parent ().set_child_above_sibling (this, null);
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// we have a shoot-over on the start of the close animation, which gets clipped
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// unless we make our container a bit wider and move the notifications over
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notification.margin_left = ADDITIONAL_MARGIN;
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notification.destroy.connect (() => {
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update_positions ();
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});
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float height;
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notification.get_preferred_height (Notification.WIDTH, out height, null);
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update_positions (height);
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notification.y = TOP_OFFSET;
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insert_child_at_index (notification, 0);
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animation_counter++;
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notification.get_transition ("entry").completed.connect (() => {
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if (--animation_counter == 0)
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animations_changed (false);
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});
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}
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void update_positions (float add_y = 0.0f)
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{
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var y = add_y + TOP_OFFSET;
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var i = get_n_children ();
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var delay_step = i > 0 ? 150 / i : 0;
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foreach (var child in get_children ()) {
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if (((Notification) child).being_destroyed)
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continue;
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child.save_easing_state ();
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child.set_easing_mode (AnimationMode.EASE_OUT_BACK);
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child.set_easing_duration (200);
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child.set_easing_delay ((i--) * delay_step);
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child.y = y;
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child.restore_easing_state ();
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y += child.height;
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}
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}
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}
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}
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