5d180d1f99
(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED) Since all of these checks are done in release builds as well, let's rename them to VERIFY to prevent confusion, as everyone is used to assertions being compiled out in release. We can introduce a new ASSERT macro that is specifically for debug checks, but I'm doing this wholesale conversion first since we've accumulated thousands of these already, and it's not immediately obvious which ones are suitable for ASSERT.
302 lines
11 KiB
C++
302 lines
11 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "TaskbarWindow.h"
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#include "TaskbarButton.h"
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#include <AK/Debug.h>
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#include <LibCore/ConfigFile.h>
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#include <LibCore/StandardPaths.h>
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#include <LibDesktop/AppFile.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Button.h>
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#include <LibGUI/Desktop.h>
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#include <LibGUI/Frame.h>
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#include <LibGUI/Icon.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Window.h>
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#include <LibGUI/WindowServerConnection.h>
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#include <LibGfx/Palette.h>
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#include <serenity.h>
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#include <stdio.h>
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class TaskbarWidget final : public GUI::Widget {
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C_OBJECT(TaskbarWidget);
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public:
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virtual ~TaskbarWidget() override { }
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private:
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TaskbarWidget() { }
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virtual void paint_event(GUI::PaintEvent& event) override
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{
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GUI::Painter painter(*this);
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painter.add_clip_rect(event.rect());
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painter.fill_rect(rect(), palette().button());
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painter.draw_line({ 0, 1 }, { width() - 1, 1 }, palette().threed_highlight());
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}
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virtual void did_layout() override
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{
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WindowList::the().for_each_window([&](auto& window) {
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if (auto* button = window.button())
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static_cast<TaskbarButton*>(button)->update_taskbar_rect();
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});
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}
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};
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TaskbarWindow::TaskbarWindow()
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{
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set_window_type(GUI::WindowType::Taskbar);
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set_title("Taskbar");
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on_screen_rect_change(GUI::Desktop::the().rect());
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GUI::Desktop::the().on_rect_change = [this](const Gfx::IntRect& rect) { on_screen_rect_change(rect); };
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auto& widget = set_main_widget<TaskbarWidget>();
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widget.set_layout<GUI::HorizontalBoxLayout>();
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widget.layout()->set_margins({ 3, 2, 3, 2 });
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widget.layout()->set_spacing(3);
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m_default_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window.png");
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create_quick_launch_bar();
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}
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TaskbarWindow::~TaskbarWindow()
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{
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}
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void TaskbarWindow::create_quick_launch_bar()
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{
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auto& quick_launch_bar = main_widget()->add<GUI::Frame>();
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quick_launch_bar.set_layout<GUI::HorizontalBoxLayout>();
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quick_launch_bar.layout()->set_spacing(0);
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quick_launch_bar.layout()->set_margins({ 3, 0, 3, 0 });
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quick_launch_bar.set_frame_thickness(0);
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int total_width = 6;
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bool first = true;
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auto config = Core::ConfigFile::get_for_app("Taskbar");
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constexpr const char* quick_launch = "QuickLaunch";
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// FIXME: Core::ConfigFile does not keep the order of the entries.
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for (auto& name : config->keys(quick_launch)) {
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auto af_name = config->read_entry(quick_launch, name);
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auto af_path = String::formatted("{}/{}", Desktop::AppFile::APP_FILES_DIRECTORY, af_name);
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auto af = Desktop::AppFile::open(af_path);
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if (!af->is_valid())
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continue;
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auto app_executable = af->executable();
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const int button_size = 24;
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auto& button = quick_launch_bar.add<GUI::Button>();
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button.set_fixed_size(button_size, button_size);
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button.set_button_style(Gfx::ButtonStyle::CoolBar);
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button.set_icon(af->icon().bitmap_for_size(16));
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button.set_tooltip(af->name());
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button.on_click = [app_executable](auto) {
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pid_t pid = fork();
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if (pid < 0) {
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perror("fork");
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} else if (pid == 0) {
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if (chdir(Core::StandardPaths::home_directory().characters()) < 0) {
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perror("chdir");
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exit(1);
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}
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execl(app_executable.characters(), app_executable.characters(), nullptr);
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perror("execl");
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VERIFY_NOT_REACHED();
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} else {
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if (disown(pid) < 0)
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perror("disown");
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}
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};
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if (!first)
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total_width += quick_launch_bar.layout()->spacing();
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first = false;
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total_width += button_size;
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}
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quick_launch_bar.set_fixed_size(total_width, 24);
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}
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void TaskbarWindow::on_screen_rect_change(const Gfx::IntRect& rect)
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{
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Gfx::IntRect new_rect { rect.x(), rect.bottom() - taskbar_height() + 1, rect.width(), taskbar_height() };
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set_rect(new_rect);
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}
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NonnullRefPtr<GUI::Button> TaskbarWindow::create_button(const WindowIdentifier& identifier)
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{
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auto& button = main_widget()->add<TaskbarButton>(identifier);
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button.set_min_size(20, 23);
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button.set_max_size(140, 23);
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button.set_text_alignment(Gfx::TextAlignment::CenterLeft);
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button.set_icon(*m_default_icon);
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return button;
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}
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void TaskbarWindow::add_window_button(::Window& window, const WindowIdentifier& identifier)
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{
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if (window.button())
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return;
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window.set_button(create_button(identifier));
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auto* button = window.button();
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button->on_click = [window = &window, identifier, button](auto) {
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// We need to look at the button's checked state here to figure
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// out if the application is active or not. That's because this
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// button's window may not actually be active when a modal window
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// is displayed, in which case window->is_active() would return
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// false because window is the modal window's owner (which is not
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// active)
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if (window->is_minimized() || !button->is_checked()) {
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GUI::WindowServerConnection::the().post_message(Messages::WindowServer::WM_SetActiveWindow(identifier.client_id(), identifier.window_id()));
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} else {
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GUI::WindowServerConnection::the().post_message(Messages::WindowServer::WM_SetWindowMinimized(identifier.client_id(), identifier.window_id(), true));
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}
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};
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}
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void TaskbarWindow::remove_window_button(::Window& window, bool was_removed)
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{
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auto* button = window.button();
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if (!button)
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return;
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if (!was_removed)
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static_cast<TaskbarButton*>(button)->clear_taskbar_rect();
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window.set_button(nullptr);
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button->remove_from_parent();
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}
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void TaskbarWindow::update_window_button(::Window& window, bool show_as_active)
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{
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auto* button = window.button();
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if (!button)
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return;
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button->set_text(window.title());
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button->set_checked(show_as_active);
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}
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::Window* TaskbarWindow::find_window_owner(::Window& window) const
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{
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if (!window.is_modal())
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return &window;
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::Window* parent = nullptr;
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auto* current_window = &window;
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while (current_window) {
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parent = WindowList::the().find_parent(*current_window);
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if (!parent || !parent->is_modal())
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break;
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current_window = parent;
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}
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return parent;
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}
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void TaskbarWindow::wm_event(GUI::WMEvent& event)
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{
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WindowIdentifier identifier { event.client_id(), event.window_id() };
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switch (event.type()) {
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case GUI::Event::WM_WindowRemoved: {
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#if EVENT_DEBUG
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auto& removed_event = static_cast<GUI::WMWindowRemovedEvent&>(event);
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dbgln("WM_WindowRemoved: client_id={}, window_id={}",
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removed_event.client_id(),
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removed_event.window_id());
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#endif
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if (auto* window = WindowList::the().window(identifier))
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remove_window_button(*window, true);
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WindowList::the().remove_window(identifier);
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update();
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break;
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}
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case GUI::Event::WM_WindowRectChanged: {
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#if EVENT_DEBUG
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auto& changed_event = static_cast<GUI::WMWindowRectChangedEvent&>(event);
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dbgln("WM_WindowRectChanged: client_id={}, window_id={}, rect={}",
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changed_event.client_id(),
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changed_event.window_id(),
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changed_event.rect());
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#endif
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break;
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}
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case GUI::Event::WM_WindowIconBitmapChanged: {
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auto& changed_event = static_cast<GUI::WMWindowIconBitmapChangedEvent&>(event);
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if (auto* window = WindowList::the().window(identifier)) {
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if (window->button())
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window->button()->set_icon(changed_event.bitmap());
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}
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break;
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}
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case GUI::Event::WM_WindowStateChanged: {
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auto& changed_event = static_cast<GUI::WMWindowStateChangedEvent&>(event);
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#if EVENT_DEBUG
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dbgln("WM_WindowStateChanged: client_id={}, window_id={}, title={}, rect={}, is_active={}, is_minimized={}",
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changed_event.client_id(),
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changed_event.window_id(),
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changed_event.title(),
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changed_event.rect(),
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changed_event.is_active(),
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changed_event.is_minimized());
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#endif
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if (changed_event.window_type() != GUI::WindowType::Normal || changed_event.is_frameless()) {
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if (auto* window = WindowList::the().window(identifier))
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remove_window_button(*window, false);
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break;
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}
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auto& window = WindowList::the().ensure_window(identifier);
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window.set_parent_identifier({ changed_event.parent_client_id(), changed_event.parent_window_id() });
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if (!window.is_modal())
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add_window_button(window, identifier);
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else
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remove_window_button(window, false);
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window.set_title(changed_event.title());
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window.set_rect(changed_event.rect());
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window.set_modal(changed_event.is_modal());
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window.set_active(changed_event.is_active());
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window.set_minimized(changed_event.is_minimized());
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window.set_progress(changed_event.progress());
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auto* window_owner = find_window_owner(window);
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if (window_owner == &window) {
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update_window_button(window, window.is_active());
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} else if (window_owner) {
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// check the window owner's button if the modal's window button
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// would have been checked
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VERIFY(window.is_modal());
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update_window_button(*window_owner, window.is_active());
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}
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break;
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}
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default:
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break;
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}
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}
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