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NotificationServer: Add a system service for desktop notifications

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This patch adds NotificationServer, which runs as the "notify" user
and provides an IPC API for desktop notifications.

LibGUI gains the GUI::Notification class for showing notifications.

NotificationServer is spawned on demand and will unspawn after
dimissing all visible notifications. :^)

Finally, this also comes with a small /bin/notify utility.
This commit is contained in:
Andreas Kling 2020-02-16 19:28:08 +01:00
parent a6e69bda71
commit 9f54ea9bcd
16 changed files with 486 additions and 1 deletions
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86
Servers/NotificationServer/NotificationWindow.cpp Normal file
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "NotificationWindow.h"
#include <AK/HashTable.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/Desktop.h>
#include <LibGUI/Label.h>
#include <LibGUI/Widget.h>
#include <LibGfx/Font.h>
namespace NotificationServer {
static HashTable<RefPtr<NotificationWindow>> s_windows;
NotificationWindow::NotificationWindow(const String& text, const String& title)
{
s_windows.set(this);
set_window_type(GUI::WindowType::Tooltip);
Gfx::Rect rect;
rect.set_width(200);
rect.set_height(40);
rect.set_location(GUI::Desktop::the().rect().top_right().translated(-rect.width() - 8, 26));
set_rect(rect);
auto widget = GUI::Widget::construct();
widget->set_fill_with_background_color(true);
widget->set_layout(make<GUI::HorizontalBoxLayout>());
widget->layout()->set_margins({ 4, 4, 4, 4 });
widget->layout()->set_spacing(4);
auto left_container = GUI::Widget::construct(widget.ptr());
left_container->set_layout(make<GUI::VerticalBoxLayout>());
auto title_label = GUI::Label::construct(title, left_container);
title_label->set_font(Gfx::Font::default_bold_font());
title_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
auto text_label = GUI::Label::construct(text, left_container);
text_label->set_text_alignment(Gfx::TextAlignment::CenterLeft);
auto right_container = GUI::Widget::construct(widget.ptr());
right_container->set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fill);
right_container->set_preferred_size(40, 0);
right_container->set_layout(make<GUI::HorizontalBoxLayout>());
auto button = GUI::Button::construct("Okay", right_container);
button->on_click = [this](auto&) {
s_windows.remove(this);
close();
};
set_main_widget(widget);
}
NotificationWindow::~NotificationWindow()
{
}
}