ladybird/Servers/WindowServer/WSMenuManager.cpp
Andreas Kling 44d5388e78 WindowServer: Add basic menu applet concept
It's now possible to create a little applet window that sits inside the
system's menubar. This is done using the new CreateMenuApplet IPC call.

So far, it's possible to assign a backing store ID, and to invalidate
rects for repaint. There is no way to get the events from inside the
applet just yet.

This will allow us to move the CPU graph and audio thingy to separate
applet processes. :^)
2019-12-05 19:36:01 +01:00

329 lines
9.8 KiB
C++

#include <LibAudio/AClientConnection.h>
#include <LibCore/CTimer.h>
#include <LibDraw/Font.h>
#include <LibDraw/Painter.h>
#include <WindowServer/WSMenuManager.h>
#include <WindowServer/WSWindowManager.h>
#include <time.h>
#include <unistd.h>
WSMenuManager::WSMenuManager()
{
m_audio_client = make<AClientConnection>();
m_audio_client->on_muted_state_change = [this](bool muted) {
if (m_audio_muted == muted)
return;
m_audio_muted = muted;
if (m_window) {
draw();
m_window->invalidate();
}
};
m_unmuted_bitmap = GraphicsBitmap::load_from_file("/res/icons/audio-unmuted.png");
m_muted_bitmap = GraphicsBitmap::load_from_file("/res/icons/audio-muted.png");
m_username = getlogin();
m_needs_window_resize = false;
m_timer = CTimer::construct(300, [this] {
static time_t last_update_time;
time_t now = time(nullptr);
if (now != last_update_time || m_cpu_monitor.is_dirty()) {
tick_clock();
last_update_time = now;
m_cpu_monitor.set_dirty(false);
}
});
}
WSMenuManager::~WSMenuManager()
{
}
void WSMenuManager::setup()
{
m_window = WSWindow::construct(*this, WSWindowType::Menubar);
m_window->set_rect(WSWindowManager::the().menubar_rect());
}
bool WSMenuManager::is_open(const WSMenu& 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 WSMenuManager::draw()
{
auto& wm = WSWindowManager::the();
auto menubar_rect = wm.menubar_rect();
if (m_needs_window_resize) {
m_window->set_rect(menubar_rect);
m_needs_window_resize = false;
}
Painter painter(*window().backing_store());
painter.fill_rect(menubar_rect, Color::WarmGray);
painter.draw_line({ 0, menubar_rect.bottom() }, { menubar_rect.right(), menubar_rect.bottom() }, Color::MidGray);
int index = 0;
wm.for_each_active_menubar_menu([&](WSMenu& menu) {
Color text_color = Color::Black;
if (is_open(menu)) {
painter.fill_rect(menu.rect_in_menubar(), Color::from_rgb(0xad714f));
painter.draw_rect(menu.rect_in_menubar(), Color::from_rgb(0x793016));
text_color = Color::White;
}
painter.draw_text(
menu.text_rect_in_menubar(),
menu.name(),
index == 1 ? wm.app_menu_font() : wm.menu_font(),
TextAlignment::CenterLeft,
text_color);
++index;
return true;
});
int username_width = Font::default_bold_font().width(m_username);
// FIXME: This rect should only be computed once.
Rect username_rect {
menubar_rect.right() - wm.menubar_menu_margin() / 2 - Font::default_bold_font().width(m_username),
menubar_rect.y(),
username_width,
menubar_rect.height()
};
painter.draw_text(username_rect, m_username, Font::default_bold_font(), TextAlignment::CenterRight, Color::Black);
time_t now = time(nullptr);
auto* tm = localtime(&now);
auto time_text = String::format("%4u-%02u-%02u %02u:%02u:%02u",
tm->tm_year + 1900,
tm->tm_mon + 1,
tm->tm_mday,
tm->tm_hour,
tm->tm_min,
tm->tm_sec);
int time_width = wm.font().width(time_text);
// FIXME: This rect should only be computed once.
Rect time_rect {
username_rect.left() - wm.menubar_menu_margin() / 2 - time_width,
menubar_rect.y(),
time_width,
menubar_rect.height()
};
painter.draw_text(time_rect, time_text, wm.font(), TextAlignment::CenterRight, Color::Black);
// FIXME: This rect should only be computed once.
Rect cpu_rect { time_rect.right() - wm.font().width(time_text) - m_cpu_monitor.capacity() - 10, time_rect.y() + 1, m_cpu_monitor.capacity(), time_rect.height() - 2 };
m_cpu_monitor.paint(painter, cpu_rect);
// FIXME: This rect should only be computed once.
m_audio_rect = { cpu_rect.left() - 20, cpu_rect.y(), 12, 16 };
auto& audio_bitmap = m_audio_muted ? *m_muted_bitmap : *m_unmuted_bitmap;
painter.blit(m_audio_rect.location(), audio_bitmap, audio_bitmap.rect());
for (auto& applet : m_applets) {
if (!applet)
continue;
draw_applet(*applet);
}
}
void WSMenuManager::tick_clock()
{
refresh();
}
void WSMenuManager::refresh()
{
if (!m_window)
return;
draw();
window().invalidate();
}
void WSMenuManager::event(CEvent& event)
{
if (WSWindowManager::the().active_window_is_modal())
return CObject::event(event);
if (event.type() == WSEvent::MouseMove || event.type() == WSEvent::MouseUp || event.type() == WSEvent::MouseDown || event.type() == WSEvent::MouseWheel) {
auto& mouse_event = static_cast<WSMouseEvent&>(event);
WSWindowManager::the().for_each_active_menubar_menu([&](WSMenu& menu) {
if (menu.rect_in_menubar().contains(mouse_event.position())) {
handle_menu_mouse_event(menu, mouse_event);
return false;
}
return true;
});
if (mouse_event.type() == WSEvent::MouseDown
&& mouse_event.button() == MouseButton::Left
&& m_audio_rect.contains(mouse_event.position())) {
m_audio_client->set_muted(!m_audio_muted);
draw();
m_window->invalidate();
}
}
return CObject::event(event);
}
void WSMenuManager::handle_menu_mouse_event(WSMenu& menu, const WSMouseEvent& event)
{
auto& wm = WSWindowManager::the();
bool is_hover_with_any_menu_open = event.type() == WSMouseEvent::MouseMove
&& !m_open_menu_stack.is_empty()
&& (m_open_menu_stack.first()->menubar() || m_open_menu_stack.first() == wm.system_menu());
bool is_mousedown_with_left_button = event.type() == WSMouseEvent::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) {
if (m_current_menu == &menu)
return;
close_everyone();
if (!menu.is_empty()) {
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();
return;
}
if (!m_bar_open)
close_everyone();
}
void WSMenuManager::set_needs_window_resize()
{
m_needs_window_resize = true;
}
void WSMenuManager::close_everyone()
{
for (auto& menu : m_open_menu_stack) {
if (menu && menu->menu_window())
menu->menu_window()->set_visible(false);
}
m_open_menu_stack.clear();
m_current_menu = nullptr;
refresh();
}
void WSMenuManager::close_everyone_not_in_lineage(WSMenu& menu)
{
Vector<WSMenu*> 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 WSMenuManager::close_menus(const Vector<WSMenu*>& menus)
{
for (auto& menu : menus) {
if (menu == m_current_menu)
m_current_menu = nullptr;
if (menu->menu_window())
menu->menu_window()->set_visible(false);
m_open_menu_stack.remove_first_matching([&](auto& entry) {
return entry == menu;
});
}
refresh();
}
static void collect_menu_subtree(WSMenu& menu, Vector<WSMenu*>& 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<WSMenuItem&>(item).submenu(), menus);
}
}
void WSMenuManager::close_menu_and_descendants(WSMenu& menu)
{
Vector<WSMenu*> menus_to_close;
collect_menu_subtree(menu, menus_to_close);
close_menus(menus_to_close);
}
void WSMenuManager::set_current_menu(WSMenu* menu, bool is_submenu)
{
if (!is_submenu && m_current_menu)
m_current_menu->close();
if (menu)
m_current_menu = menu->make_weak_ptr();
if (!is_submenu) {
close_everyone();
if (menu)
m_open_menu_stack.append(menu->make_weak_ptr());
} else {
m_open_menu_stack.append(menu->make_weak_ptr());
}
}
void WSMenuManager::close_bar()
{
close_everyone();
m_bar_open = false;
}
void WSMenuManager::add_applet(WSMenuApplet& applet)
{
int right_edge_x = m_audio_rect.x() - 4;
for (auto& existing_applet : m_applets) {
if (existing_applet)
right_edge_x = existing_applet->rect_in_menubar().x() - 4;
}
Rect new_applet_rect(right_edge_x - applet.size().width(), 0, applet.size().width(), applet.size().height());
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 WSMenuManager::remove_applet(WSMenuApplet& applet)
{
m_applets.remove_first_matching([&](auto& entry) {
return &applet == entry.ptr();
});
}
void WSMenuManager::draw_applet(const WSMenuApplet& applet)
{
if (!applet.bitmap())
return;
Painter painter(*window().backing_store());
painter.blit(applet.rect_in_menubar().location(), *applet.bitmap(), applet.bitmap()->rect());
}
void WSMenuManager::invalidate_applet(WSMenuApplet& applet, const Rect& rect)
{
// FIXME: This should only invalidate the applet's own rect, not the whole menubar.
(void)rect;
draw_applet(applet);
window().invalidate();
}