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serenity/Servers/WindowServer/MenuManager.cpp
Sergey Bugaev 960df8a62a WindowServer: Don't try to load unspecified icons
Some apps (looking at you, VisualBuilder) don't specify an icon
in their .af file, so WindowServer was trying to open an empty path.
That made it print a perror message to the log each time. Let's not
do that ^)
2020-02-07 12:10:56 +01:00

545 lines
18 KiB
C++

/*
* Copyright (c) 2018-2020, 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 <AK/FileSystemPath.h>
#include <AK/QuickSort.h>
#include <LibCore/DirIterator.h>
#include <LibGfx/Font.h>
#include <LibGfx/Painter.h>
#include <WindowServer/MenuManager.h>
#include <WindowServer/Screen.h>
#include <WindowServer/WindowManager.h>
#include <unistd.h>
//#define DEBUG_MENUS
namespace WindowServer {
static MenuManager* s_the;
MenuManager& MenuManager::the()
{
ASSERT(s_the);
return *s_the;
}
MenuManager::MenuManager()
{
s_the = this;
m_username = getlogin();
m_needs_window_resize = true;
HashTable<String> seen_app_categories;
{
Core::DirIterator dt("/res/apps", Core::DirIterator::SkipDots);
while (dt.has_next()) {
auto af_name = dt.next_path();
auto af_path = String::format("/res/apps/%s", af_name.characters());
auto af = Core::ConfigFile::open(af_path);
if (!af->has_key("App", "Name") || !af->has_key("App", "Executable"))
continue;
auto app_name = af->read_entry("App", "Name");
auto app_executable = af->read_entry("App", "Executable");
auto app_category = af->read_entry("App", "Category");
auto app_icon_path = af->read_entry("Icons", "16x16");
m_apps.append({ app_executable, app_name, app_icon_path, app_category });
seen_app_categories.set(app_category);
}
}
Vector<String> sorted_app_categories;
for (auto& category : seen_app_categories)
sorted_app_categories.append(category);
quick_sort(sorted_app_categories.begin(), sorted_app_categories.end(), [](auto& a, auto& b) { return a < b; });
u8 system_menu_name[] = { 0xc3, 0xb8, 0 };
m_system_menu = Menu::construct(nullptr, -1, String((const char*)system_menu_name));
// First we construct all the necessary app category submenus.
for (const auto& category : sorted_app_categories) {
if (m_app_category_menus.contains(category))
continue;
auto category_menu = Menu::construct(nullptr, 5000 + m_app_category_menus.size(), category);
category_menu->on_item_activation = [this](auto& item) {
if (item.identifier() >= 1 && item.identifier() <= 1u + m_apps.size() - 1) {
if (fork() == 0) {
const auto& bin = m_apps[item.identifier() - 1].executable;
execl(bin.characters(), bin.characters(), nullptr);
ASSERT_NOT_REACHED();
}
}
};
auto item = make<MenuItem>(*m_system_menu, -1, category);
item->set_submenu_id(category_menu->menu_id());
m_system_menu->add_item(move(item));
m_app_category_menus.set(category, move(category_menu));
}
// Then we create and insert all the app menu items into the right place.
int app_identifier = 1;
for (const auto& app : m_apps) {
RefPtr<Gfx::Bitmap> icon;
if (!app.icon_path.is_empty())
icon = Gfx::Bitmap::load_from_file(app.icon_path);
auto parent_menu = m_app_category_menus.get(app.category).value_or(*m_system_menu);
parent_menu->add_item(make<MenuItem>(*m_system_menu, app_identifier++, app.name, String(), true, false, false, icon));
}
m_system_menu->add_item(make<MenuItem>(*m_system_menu, MenuItem::Separator));
m_themes_menu = Menu::construct(nullptr, 9000, "Themes");
auto themes_menu_item = make<MenuItem>(*m_system_menu, 100, "Themes");
themes_menu_item->set_submenu_id(m_themes_menu->menu_id());
m_system_menu->add_item(move(themes_menu_item));
{
Core::DirIterator dt("/res/themes", Core::DirIterator::SkipDots);
while (dt.has_next()) {
auto theme_name = dt.next_path();
auto theme_path = String::format("/res/themes/%s", theme_name.characters());
m_themes.append({ FileSystemPath(theme_name).title(), theme_path });
}
quick_sort(m_themes.begin(), m_themes.end(), [](auto& a, auto& b) { return a.name < b.name; });
}
{
int theme_identifier = 9000;
for (auto& theme : m_themes) {
m_themes_menu->add_item(make<MenuItem>(*m_themes_menu, theme_identifier++, theme.name));
}
}
m_themes_menu->on_item_activation = [this](MenuItem& item) {
auto& theme = m_themes[(int)item.identifier() - 9000];
WindowManager::the().update_theme(theme.path, theme.name);
++m_theme_index;
};
m_system_menu->add_item(make<MenuItem>(*m_system_menu, MenuItem::Separator));
m_system_menu->add_item(make<MenuItem>(*m_system_menu, 100, "Reload WM Config File"));
m_system_menu->add_item(make<MenuItem>(*m_system_menu, MenuItem::Separator));
m_system_menu->add_item(make<MenuItem>(*m_system_menu, 200, "About...", String(), true, false, false, Gfx::Bitmap::load_from_file("/res/icons/16x16/ladybug.png")));
m_system_menu->add_item(make<MenuItem>(*m_system_menu, MenuItem::Separator));
m_system_menu->add_item(make<MenuItem>(*m_system_menu, 300, "Shutdown..."));
m_system_menu->on_item_activation = [this](MenuItem& item) {
if (item.identifier() >= 1 && item.identifier() <= 1u + m_apps.size() - 1) {
if (fork() == 0) {
const auto& bin = m_apps[item.identifier() - 1].executable;
execl(bin.characters(), bin.characters(), nullptr);
ASSERT_NOT_REACHED();
}
}
switch (item.identifier()) {
case 100:
WindowManager::the().reload_config(true);
break;
case 200:
if (fork() == 0) {
execl("/bin/About", "/bin/About", nullptr);
ASSERT_NOT_REACHED();
}
return;
case 300:
if (fork() == 0) {
execl("/bin/SystemDialog", "/bin/SystemDialog", "--shutdown", nullptr);
ASSERT_NOT_REACHED();
}
return;
}
#ifdef DEBUG_MENUS
dbg() << "Menu 1 item activated: " << item.text();
#endif
};
// NOTE: This ensures that the system menu has the correct dimensions.
set_current_menubar(nullptr);
m_window = Window::construct(*this, WindowType::Menubar);
m_window->set_rect(menubar_rect());
}
MenuManager::~MenuManager()
{
}
bool MenuManager::is_open(const Menu& menu) const
{
for (int i = 0; i < m_open_menu_stack.size(); ++i) {
if (&menu == m_open_menu_stack[i].ptr())
return true;
}
return false;
}
void MenuManager::draw()
{
auto& wm = WindowManager::the();
auto palette = wm.palette();
auto menubar_rect = this->menubar_rect();
if (m_needs_window_resize) {
int username_width = Gfx::Font::default_bold_font().width(m_username);
m_username_rect = {
menubar_rect.right() - menubar_menu_margin() / 2 - Gfx::Font::default_bold_font().width(m_username),
menubar_rect.y(),
username_width,
menubar_rect.height()
};
int right_edge_x = m_username_rect.left() - 4;
for (auto& existing_applet : m_applets) {
if (!existing_applet)
continue;
Gfx::Rect new_applet_rect(right_edge_x - existing_applet->size().width(), 0, existing_applet->size().width(), existing_applet->size().height());
Gfx::Rect dummy_menubar_rect(0, 0, 0, 18);
new_applet_rect.center_vertically_within(dummy_menubar_rect);
existing_applet->set_rect_in_menubar(new_applet_rect);
right_edge_x = existing_applet->rect_in_menubar().x() - 4;
}
m_window->set_rect(menubar_rect);
m_needs_window_resize = false;
}
Gfx::Painter painter(*window().backing_store());
painter.fill_rect(menubar_rect, palette.window());
painter.draw_line({ 0, menubar_rect.bottom() }, { menubar_rect.right(), menubar_rect.bottom() }, palette.threed_shadow1());
int index = 0;
for_each_active_menubar_menu([&](Menu& menu) {
Color text_color = palette.window_text();
if (is_open(menu)) {
painter.fill_rect(menu.rect_in_menubar(), palette.menu_selection());
painter.draw_rect(menu.rect_in_menubar(), palette.menu_selection().darkened());
text_color = Color::White;
}
painter.draw_text(
menu.text_rect_in_menubar(),
menu.name(),
index == 1 ? wm.app_menu_font() : wm.menu_font(),
Gfx::TextAlignment::CenterLeft,
text_color);
++index;
return IterationDecision::Continue;
});
painter.draw_text(m_username_rect, m_username, Gfx::Font::default_bold_font(), Gfx::TextAlignment::CenterRight, palette.window_text());
for (auto& applet : m_applets) {
if (!applet)
continue;
draw_applet(*applet);
}
}
void MenuManager::tick_clock()
{
refresh();
}
void MenuManager::refresh()
{
if (!m_window)
return;
draw();
window().invalidate();
}
void MenuManager::event(Core::Event& event)
{
if (WindowManager::the().active_window_is_modal())
return Core::Object::event(event);
if (event.type() == Event::MouseMove || event.type() == Event::MouseUp || event.type() == Event::MouseDown || event.type() == Event::MouseWheel) {
auto& mouse_event = static_cast<MouseEvent&>(event);
for_each_active_menubar_menu([&](Menu& menu) {
if (menu.rect_in_menubar().contains(mouse_event.position())) {
handle_menu_mouse_event(menu, mouse_event);
return IterationDecision::Break;
}
return IterationDecision::Continue;
});
for (auto& applet : m_applets) {
if (!applet)
continue;
if (!applet->rect_in_menubar().contains(mouse_event.position()))
continue;
auto local_event = mouse_event.translated(-applet->rect_in_menubar().location());
applet->event(local_event);
}
}
if (static_cast<Event&>(event).is_key_event()) {
auto& key_event = static_cast<const KeyEvent&>(event);
if (key_event.type() == Event::KeyUp && key_event.key() == Key_Escape) {
close_everyone();
return;
}
if (event.type() == Event::KeyDown) {
for_each_active_menubar_menu([&](Menu& menu) {
if (is_open(menu))
menu.dispatch_event(event);
return IterationDecision::Continue;
});
}
}
return Core::Object::event(event);
}
void MenuManager::handle_menu_mouse_event(Menu& menu, const MouseEvent& event)
{
bool is_hover_with_any_menu_open = event.type() == MouseEvent::MouseMove
&& !m_open_menu_stack.is_empty()
&& (m_open_menu_stack.first()->menubar() || m_open_menu_stack.first() == m_system_menu.ptr());
bool is_mousedown_with_left_button = event.type() == MouseEvent::MouseDown && event.button() == MouseButton::Left;
bool should_open_menu = &menu != m_current_menu && (is_hover_with_any_menu_open || is_mousedown_with_left_button);
if (is_mousedown_with_left_button)
m_bar_open = !m_bar_open;
if (should_open_menu && m_bar_open) {
open_menu(menu);
return;
}
if (!m_bar_open)
close_everyone();
}
void MenuManager::set_needs_window_resize()
{
m_needs_window_resize = true;
}
void MenuManager::close_all_menus_from_client(Badge<ClientConnection>, ClientConnection& client)
{
if (m_open_menu_stack.is_empty())
return;
if (m_open_menu_stack.first()->client() != &client)
return;
close_everyone();
}
void MenuManager::close_everyone()
{
for (auto& menu : m_open_menu_stack) {
if (menu && menu->menu_window())
menu->menu_window()->set_visible(false);
menu->clear_hovered_item();
}
m_open_menu_stack.clear();
m_current_menu = nullptr;
refresh();
}
void MenuManager::close_everyone_not_in_lineage(Menu& menu)
{
Vector<Menu*> menus_to_close;
for (auto& open_menu : m_open_menu_stack) {
if (!open_menu)
continue;
if (&menu == open_menu.ptr() || open_menu->is_menu_ancestor_of(menu))
continue;
menus_to_close.append(open_menu);
}
close_menus(menus_to_close);
}
void MenuManager::close_menus(const Vector<Menu*>& menus)
{
for (auto& menu : menus) {
if (menu == m_current_menu)
m_current_menu = nullptr;
if (menu->menu_window())
menu->menu_window()->set_visible(false);
menu->clear_hovered_item();
m_open_menu_stack.remove_first_matching([&](auto& entry) {
return entry == menu;
});
}
refresh();
}
static void collect_menu_subtree(Menu& menu, Vector<Menu*>& menus)
{
menus.append(&menu);
for (int i = 0; i < menu.item_count(); ++i) {
auto& item = menu.item(i);
if (!item.is_submenu())
continue;
collect_menu_subtree(*const_cast<MenuItem&>(item).submenu(), menus);
}
}
void MenuManager::close_menu_and_descendants(Menu& menu)
{
Vector<Menu*> menus_to_close;
collect_menu_subtree(menu, menus_to_close);
close_menus(menus_to_close);
}
void MenuManager::toggle_menu(Menu& menu)
{
if (is_open(menu)) {
close_menu_and_descendants(menu);
return;
}
open_menu(menu);
}
void MenuManager::open_menu(Menu& menu)
{
if (is_open(menu))
return;
if (!menu.is_empty()) {
menu.redraw_if_theme_changed();
auto& menu_window = menu.ensure_menu_window();
menu_window.move_to({ menu.rect_in_menubar().x(), menu.rect_in_menubar().bottom() + 2 });
menu_window.set_visible(true);
}
set_current_menu(&menu);
refresh();
}
void MenuManager::set_current_menu(Menu* menu, bool is_submenu)
{
if (!is_submenu) {
if (menu)
close_everyone_not_in_lineage(*menu);
else
close_everyone();
}
if (!menu) {
m_current_menu = nullptr;
return;
}
m_open_menu_stack.append(menu->make_weak_ptr());
m_current_menu = menu->make_weak_ptr();
}
void MenuManager::close_bar()
{
close_everyone();
m_bar_open = false;
}
void MenuManager::add_applet(Window& applet)
{
int right_edge_x = m_username_rect.left() - 4;
for (auto& existing_applet : m_applets) {
if (existing_applet)
right_edge_x = existing_applet->rect_in_menubar().x() - 4;
}
Gfx::Rect new_applet_rect(right_edge_x - applet.size().width(), 0, applet.size().width(), applet.size().height());
Gfx::Rect dummy_menubar_rect(0, 0, 0, 18);
new_applet_rect.center_vertically_within(dummy_menubar_rect);
applet.set_rect_in_menubar(new_applet_rect);
m_applets.append(applet.make_weak_ptr());
}
void MenuManager::remove_applet(Window& applet)
{
m_applets.remove_first_matching([&](auto& entry) {
return &applet == entry.ptr();
});
}
void MenuManager::draw_applet(const Window& applet)
{
if (!applet.backing_store())
return;
Gfx::Painter painter(*window().backing_store());
painter.fill_rect(applet.rect_in_menubar(), WindowManager::the().palette().window());
painter.blit(applet.rect_in_menubar().location(), *applet.backing_store(), applet.backing_store()->rect());
}
void MenuManager::invalidate_applet(const Window& applet, const Gfx::Rect& rect)
{
draw_applet(applet);
window().invalidate(rect.translated(applet.rect_in_menubar().location()));
}
Gfx::Rect MenuManager::menubar_rect() const
{
return { 0, 0, Screen::the().rect().width(), 18 };
}
Menu* MenuManager::find_internal_menu_by_id(int menu_id)
{
if (m_themes_menu->menu_id() == menu_id)
return m_themes_menu.ptr();
for (auto& it : m_app_category_menus) {
if (menu_id == it.value->menu_id())
return it.value;
}
return nullptr;
}
void MenuManager::set_current_menubar(MenuBar* menubar)
{
if (menubar)
m_current_menubar = menubar->make_weak_ptr();
else
m_current_menubar = nullptr;
#ifdef DEBUG_MENUS
dbg() << "[WM] Current menubar is now " << menubar;
#endif
Gfx::Point next_menu_location { MenuManager::menubar_menu_margin() / 2, 0 };
int index = 0;
for_each_active_menubar_menu([&](Menu& menu) {
int text_width = index == 1 ? Gfx::Font::default_bold_font().width(menu.name()) : Gfx::Font::default_font().width(menu.name());
menu.set_rect_in_menubar({ next_menu_location.x() - MenuManager::menubar_menu_margin() / 2, 0, text_width + MenuManager::menubar_menu_margin(), menubar_rect().height() - 1 });
menu.set_text_rect_in_menubar({ next_menu_location, { text_width, menubar_rect().height() } });
next_menu_location.move_by(menu.rect_in_menubar().width(), 0);
++index;
return IterationDecision::Continue;
});
refresh();
}
void MenuManager::close_menubar(MenuBar& menubar)
{
if (current_menubar() == &menubar)
set_current_menubar(nullptr);
}
}