Taskbar: Integrate clock widget into taskbar window

Instead of running the clock widget as a separate menu applet,
let's just draw a clock here in the taskbar window.

6 files changed, 351 insertions, 12 deletions

diff --git a/Userland/Services/Taskbar/CMakeLists.txt b/Userland/Services/Taskbar/CMakeLists.txt
index 83de9ee9c8..3b0d10674e 100644
--- a/Userland/Services/Taskbar/CMakeLists.txt
+++ b/Userland/Services/Taskbar/CMakeLists.txt
@@ -1,5 +1,6 @@
 set(SOURCES
     main.cpp
+    ClockWidget.cpp
     TaskbarButton.cpp
     TaskbarWindow.cpp
     WindowList.cpp
diff --git a/Userland/Services/Taskbar/ClockWidget.cpp b/Userland/Services/Taskbar/ClockWidget.cpp
new file mode 100644
index 0000000000..f9b1de5987
--- /dev/null
+++ b/Userland/Services/Taskbar/ClockWidget.cpp
@@ -0,0 +1,258 @@
+/*
+ * Copyright (c) 2018-2021, 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 "ClockWidget.h"
+#include <LibGUI/Painter.h>
+#include <LibGUI/Window.h>
+#include <LibGfx/FontDatabase.h>
+#include <LibGfx/Palette.h>
+#include <serenity.h>
+#include <spawn.h>
+
+namespace Taskbar {
+
+ClockWidget::ClockWidget()
+{
+    set_frame_shape(Gfx::FrameShape::Box);
+    set_frame_shadow(Gfx::FrameShadow::Sunken);
+    set_frame_thickness(1);
+
+    m_time_width = font().width("2222-22-22 22:22:22");
+
+    set_fixed_size(m_time_width + 8, 22);
+
+    m_timer = add<Core::Timer>(1000, [this] {
+        static time_t last_update_time;
+        time_t now = time(nullptr);
+        if (now != last_update_time) {
+            tick_clock();
+            last_update_time = now;
+        }
+    });
+
+    m_calendar_window = add<GUI::Window>(window());
+    m_calendar_window->set_frameless(true);
+    m_calendar_window->set_resizable(false);
+    m_calendar_window->set_minimizable(false);
+    m_calendar_window->on_active_input_change = [this](bool is_active_input) {
+        if (!is_active_input)
+            close();
+    };
+
+    auto& root_container = m_calendar_window->set_main_widget<GUI::Label>();
+    root_container.set_fill_with_background_color(true);
+    root_container.set_layout<GUI::VerticalBoxLayout>();
+    root_container.layout()->set_margins({ 0, 2, 0, 2 });
+    root_container.layout()->set_spacing(0);
+    root_container.set_frame_thickness(2);
+    root_container.set_frame_shape(Gfx::FrameShape::Container);
+    root_container.set_frame_shadow(Gfx::FrameShadow::Raised);
+
+    auto& navigation_container = root_container.add<GUI::Widget>();
+    navigation_container.set_fixed_height(24);
+    navigation_container.set_layout<GUI::HorizontalBoxLayout>();
+    navigation_container.layout()->set_margins({ 2, 2, 3, 2 });
+
+    m_prev_date = navigation_container.add<GUI::Button>();
+    m_prev_date->set_button_style(Gfx::ButtonStyle::CoolBar);
+    m_prev_date->set_fixed_size(24, 24);
+    m_prev_date->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-back.png"));
+    m_prev_date->on_click = [&](auto) {
+        unsigned int target_month = m_calendar->selected_month();
+        unsigned int target_year = m_calendar->selected_year();
+
+        if (m_calendar->mode() == GUI::Calendar::Month) {
+            target_month--;
+            if (m_calendar->selected_month() <= 1) {
+                target_month = 12;
+                target_year--;
+            }
+        } else {
+            target_year--;
+        }
+
+        m_calendar->update_tiles(target_year, target_month);
+        m_selected_calendar_button->set_text(m_calendar->selected_calendar_text(GUI::Calendar::LongNames));
+    };
+
+    m_selected_calendar_button = navigation_container.add<GUI::Button>();
+    m_selected_calendar_button->set_button_style(Gfx::ButtonStyle::CoolBar);
+    m_selected_calendar_button->set_fixed_height(24);
+    m_selected_calendar_button->on_click = [&](auto) {
+        m_calendar->toggle_mode();
+        m_selected_calendar_button->set_text(m_calendar->selected_calendar_text(GUI::Calendar::LongNames));
+    };
+
+    m_next_date = navigation_container.add<GUI::Button>();
+    m_next_date->set_button_style(Gfx::ButtonStyle::CoolBar);
+    m_next_date->set_fixed_size(24, 24);
+    m_next_date->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png"));
+    m_next_date->on_click = [&](auto) {
+        unsigned int target_month = m_calendar->selected_month();
+        unsigned int target_year = m_calendar->selected_year();
+
+        if (m_calendar->mode() == GUI::Calendar::Month) {
+            target_month++;
+            if (m_calendar->selected_month() >= 12) {
+                target_month = 1;
+                target_year++;
+            }
+        } else {
+            target_year++;
+        }
+
+        m_calendar->update_tiles(target_year, target_month);
+        m_selected_calendar_button->set_text(m_calendar->selected_calendar_text(GUI::Calendar::LongNames));
+    };
+
+    auto& divider1_container = root_container.add<GUI::Widget>();
+    divider1_container.set_fixed_height(2);
+    divider1_container.set_layout<GUI::HorizontalBoxLayout>();
+    divider1_container.layout()->set_margins({ 2, 0, 3, 0 });
+
+    auto& divider1 = divider1_container.add<GUI::Frame>();
+    divider1.set_fixed_height(2);
+    divider1.set_frame_shape(Gfx::FrameShape::Panel);
+
+    auto& calendar_frame_container = root_container.add<GUI::Widget>();
+    calendar_frame_container.set_layout<GUI::HorizontalBoxLayout>();
+    calendar_frame_container.layout()->set_margins({ 4, 4, 5, 4 });
+
+    auto& calendar_frame = calendar_frame_container.add<GUI::Frame>();
+    calendar_frame.set_layout<GUI::VerticalBoxLayout>();
+    calendar_frame.layout()->set_margins({ 2, 2, 2, 2 });
+
+    m_calendar = calendar_frame.add<GUI::Calendar>(Core::DateTime::now());
+    m_selected_calendar_button->set_text(m_calendar->selected_calendar_text(GUI::Calendar::LongNames));
+
+    m_calendar->on_calendar_tile_click = [&] {
+        m_selected_calendar_button->set_text(m_calendar->selected_calendar_text(GUI::Calendar::LongNames));
+    };
+
+    m_calendar->on_month_tile_click = [&] {
+        m_selected_calendar_button->set_text(m_calendar->selected_calendar_text(GUI::Calendar::LongNames));
+    };
+
+    auto& divider2_container = root_container.add<GUI::Widget>();
+    divider2_container.set_fixed_height(2);
+    divider2_container.set_layout<GUI::HorizontalBoxLayout>();
+    divider2_container.layout()->set_margins({ 2, 0, 3, 0 });
+
+    auto& divider2 = divider2_container.add<GUI::Frame>();
+    divider2.set_fixed_height(2);
+    divider2.set_frame_shape(Gfx::FrameShape::Panel);
+
+    auto& settings_container = root_container.add<GUI::Widget>();
+    settings_container.set_fixed_height(24);
+    settings_container.set_layout<GUI::HorizontalBoxLayout>();
+    settings_container.layout()->set_margins({ 2, 2, 3, 2 });
+    settings_container.layout()->add_spacer();
+
+    m_jump_to_button = settings_container.add<GUI::Button>();
+    m_jump_to_button->set_button_style(Gfx::ButtonStyle::CoolBar);
+    m_jump_to_button->set_fixed_size(24, 24);
+    m_jump_to_button->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/calendar-date.png"));
+    m_jump_to_button->set_tooltip("Jump to today");
+    m_jump_to_button->on_click = [this](auto) {
+        jump_to_current_date();
+    };
+
+    m_calendar_launcher = settings_container.add<GUI::Button>();
+    m_calendar_launcher->set_button_style(Gfx::ButtonStyle::CoolBar);
+    m_calendar_launcher->set_fixed_size(24, 24);
+    m_calendar_launcher->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-calendar.png"));
+    m_calendar_launcher->set_tooltip("Calendar");
+    m_calendar_launcher->on_click = [](auto) {
+        pid_t pid;
+        const char* argv[] = { "Calendar", nullptr };
+        if ((errno = posix_spawn(&pid, "/bin/Calendar", nullptr, nullptr, const_cast<char**>(argv), environ))) {
+            perror("posix_spawn");
+        } else {
+            if (disown(pid) < 0)
+                perror("disown");
+        }
+    };
+}
+
+ClockWidget::~ClockWidget()
+{
+}
+
+void ClockWidget::paint_event(GUI::PaintEvent& event)
+{
+    GUI::Frame::paint_event(event);
+    auto time_text = Core::DateTime::now().to_string();
+    GUI::Painter painter(*this);
+    painter.add_clip_rect(frame_inner_rect());
+    painter.draw_text(event.rect(), time_text, Gfx::FontDatabase::default_font(), Gfx::TextAlignment::Center, palette().window_text());
+}
+
+void ClockWidget::mousedown_event(GUI::MouseEvent& event)
+{
+    if (event.button() != GUI::MouseButton::Left) {
+        return;
+    } else {
+        if (!m_calendar_window->is_visible())
+            open();
+        else
+            close();
+    }
+}
+
+void ClockWidget::open()
+{
+    jump_to_current_date();
+    // FIXME: We position the calendar twice since we don't know the final size the first time.
+    //        Find a way to not do this.
+    position_calendar_window();
+    m_calendar_window->show();
+    position_calendar_window();
+}
+
+void ClockWidget::close()
+{
+    m_calendar_window->hide();
+}
+
+void ClockWidget::position_calendar_window()
+{
+    m_calendar_window->set_rect(
+        screen_relative_rect().right() - m_calendar_window->width(),
+        screen_relative_rect().top() - m_calendar_window->height() - 2,
+        153,
+        180);
+}
+
+void ClockWidget::jump_to_current_date()
+{
+    if (m_calendar->mode() == GUI::Calendar::Year)
+        m_calendar->toggle_mode();
+    m_calendar->set_selected_date(Core::DateTime::now());
+    m_calendar->update_tiles(Core::DateTime::now().year(), Core::DateTime::now().month());
+    m_selected_calendar_button->set_text(m_calendar->selected_calendar_text(GUI::Calendar::LongNames));
+}
+
+}
diff --git a/Userland/Services/Taskbar/ClockWidget.h b/Userland/Services/Taskbar/ClockWidget.h
new file mode 100644
index 0000000000..99868bac2a
--- /dev/null
+++ b/Userland/Services/Taskbar/ClockWidget.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2018-2021, 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.
+ */
+
+#pragma once
+
+#include <LibCore/DateTime.h>
+#include <LibCore/Timer.h>
+#include <LibGUI/Application.h>
+#include <LibGUI/BoxLayout.h>
+#include <LibGUI/Button.h>
+#include <LibGUI/Calendar.h>
+#include <LibGUI/Frame.h>
+#include <LibGUI/Label.h>
+#include <time.h>
+
+namespace Taskbar {
+
+class ClockWidget final : public GUI::Frame {
+    C_OBJECT(ClockWidget);
+
+public:
+    virtual ~ClockWidget() override;
+
+private:
+    ClockWidget();
+
+    virtual void paint_event(GUI::PaintEvent&) override;
+    virtual void mousedown_event(GUI::MouseEvent&) override;
+
+    void tick_clock() { update(); }
+
+    void open();
+    void close();
+
+    void position_calendar_window();
+    void jump_to_current_date();
+
+    RefPtr<GUI::Window> m_calendar_window;
+    RefPtr<GUI::Calendar> m_calendar;
+    RefPtr<GUI::Button> m_next_date;
+    RefPtr<GUI::Button> m_prev_date;
+    RefPtr<GUI::Button> m_selected_calendar_button;
+    RefPtr<GUI::Button> m_jump_to_button;
+    RefPtr<GUI::Button> m_calendar_launcher;
+    RefPtr<Core::Timer> m_timer;
+    int m_time_width { 0 };
+};
+
+}
diff --git a/Userland/Services/Taskbar/TaskbarWindow.cpp b/Userland/Services/Taskbar/TaskbarWindow.cpp
index e1de201504..0f9d80ba32 100644
--- a/Userland/Services/Taskbar/TaskbarWindow.cpp
+++ b/Userland/Services/Taskbar/TaskbarWindow.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -25,6 +25,7 @@
  */
 
 #include "TaskbarWindow.h"
+#include "ClockWidget.h"
 #include "TaskbarButton.h"
 #include <AK/Debug.h>
 #include <LibCore/ConfigFile.h>
@@ -77,14 +78,19 @@ TaskbarWindow::TaskbarWindow()
 
     GUI::Desktop::the().on_rect_change = [this](const Gfx::IntRect& rect) { on_screen_rect_change(rect); };
 
-    auto& widget = set_main_widget<TaskbarWidget>();
-    widget.set_layout<GUI::HorizontalBoxLayout>();
-    widget.layout()->set_margins({ 3, 2, 3, 2 });
-    widget.layout()->set_spacing(3);
+    auto& main_widget = set_main_widget<TaskbarWidget>();
+    main_widget.set_layout<GUI::HorizontalBoxLayout>();
+    main_widget.layout()->set_margins({ 3, 2, 3, 2 });
+
+    create_quick_launch_bar();
+
+    m_task_button_container = main_widget.add<GUI::Widget>();
+    m_task_button_container->set_layout<GUI::HorizontalBoxLayout>();
+    m_task_button_container->layout()->set_spacing(3);
 
     m_default_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/window.png");
 
-    create_quick_launch_bar();
+    main_widget.add<Taskbar::ClockWidget>();
 }
 
 TaskbarWindow::~TaskbarWindow()
@@ -154,7 +160,7 @@ void TaskbarWindow::on_screen_rect_change(const Gfx::IntRect& rect)
 
 NonnullRefPtr<GUI::Button> TaskbarWindow::create_button(const WindowIdentifier& identifier)
 {
-    auto& button = main_widget()->add<TaskbarButton>(identifier);
+    auto& button = m_task_button_container->add<TaskbarButton>(identifier);
     button.set_min_size(20, 23);
     button.set_max_size(140, 23);
     button.set_text_alignment(Gfx::TextAlignment::CenterLeft);
diff --git a/Userland/Services/Taskbar/TaskbarWindow.h b/Userland/Services/Taskbar/TaskbarWindow.h
index be55a00daf..9e0e73878d 100644
--- a/Userland/Services/Taskbar/TaskbarWindow.h
+++ b/Userland/Services/Taskbar/TaskbarWindow.h
@@ -31,14 +31,15 @@
 #include <LibGUI/Window.h>
 
 class TaskbarWindow final : public GUI::Window {
-    C_OBJECT(TaskbarWindow)
+    C_OBJECT(TaskbarWindow);
+
 public:
-    TaskbarWindow();
     virtual ~TaskbarWindow() override;
 
-    int taskbar_height() const { return 28; }
+    static int taskbar_height() { return 28; }
 
 private:
+    TaskbarWindow();
     void create_quick_launch_bar();
     void on_screen_rect_change(const Gfx::IntRect&);
     NonnullRefPtr<GUI::Button> create_button(const WindowIdentifier&);
@@ -49,5 +50,6 @@ private:
 
     virtual void wm_event(GUI::WMEvent&) override;
 
+    RefPtr<GUI::Widget> m_task_button_container;
     RefPtr<Gfx::Bitmap> m_default_icon;
 };
diff --git a/Userland/Services/Taskbar/main.cpp b/Userland/Services/Taskbar/main.cpp
index f86c0a114b..02cc6a0af8 100644
--- a/Userland/Services/Taskbar/main.cpp
+++ b/Userland/Services/Taskbar/main.cpp
@@ -51,8 +51,8 @@ int main(int argc, char** argv)
         return 1;
     }
 
-    TaskbarWindow window;
-    window.show();
+    auto window = TaskbarWindow::construct();
+    window->show();
 
     return app->exec();
 }