Services: Move Taskbar and SystemMenu from Applications to Services

Services/Taskbar/WindowList.h

@@ -0,0 +1,96 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include "WindowIdentifier.h"
+#include <AK/String.h>
+#include <AK/HashMap.h>
+#include <LibGUI/Button.h>
+#include <LibGfx/Rect.h>
+
+class Window {
+public:
+    explicit Window(const WindowIdentifier& identifier)
+        : m_identifier(identifier)
+    {
+    }
+
+    ~Window()
+    {
+        if (m_button)
+            m_button->remove_from_parent();
+    }
+
+    WindowIdentifier identifier() const { return m_identifier; }
+
+    String title() const { return m_title; }
+    void set_title(const String& title) { m_title = title; }
+
+    Gfx::Rect rect() const { return m_rect; }
+    void set_rect(const Gfx::Rect& rect) { m_rect = rect; }
+
+    GUI::Button* button() { return m_button; }
+    void set_button(GUI::Button* button) { m_button = button; }
+
+    void set_active(bool active) { m_active = active; }
+    bool is_active() const { return m_active; }
+
+    void set_minimized(bool minimized) { m_minimized = minimized; }
+    bool is_minimized() const { return m_minimized; }
+
+    const Gfx::Bitmap* icon() const { return m_icon.ptr(); }
+
+private:
+    WindowIdentifier m_identifier;
+    String m_title;
+    Gfx::Rect m_rect;
+    RefPtr<GUI::Button> m_button;
+    RefPtr<Gfx::Bitmap> m_icon;
+    bool m_active { false };
+    bool m_minimized { false };
+};
+
+class WindowList {
+public:
+    static WindowList& the();
+
+    template<typename Callback>
+    void for_each_window(Callback callback)
+    {
+        for (auto& it : m_windows)
+            callback(*it.value);
+    }
+
+    Window* window(const WindowIdentifier&);
+    Window& ensure_window(const WindowIdentifier&);
+    void remove_window(const WindowIdentifier&);
+
+    Function<NonnullRefPtr<GUI::Button>(const WindowIdentifier&)> aid_create_button;
+
+private:
+    HashMap<WindowIdentifier, NonnullOwnPtr<Window>> m_windows;
+};