1 files changed, 82 insertions, 0 deletions
diff --git a/Servers/WindowServer/WindowSwitcher.h b/Servers/WindowServer/WindowSwitcher.h
new file mode 100644
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+++ b/Servers/WindowServer/WindowSwitcher.h
@@ -0,0 +1,82 @@
+/*
+ * 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 <AK/Vector.h>
+#include <AK/WeakPtr.h>
+#include <LibCore/Object.h>
+#include <LibGfx/Rect.h>
+
+namespace Gfx {
+class Painter;
+}
+
+namespace WindowServer {
+
+class KeyEvent;
+class Window;
+
+class WindowSwitcher : public Core::Object {
+    C_OBJECT(WindowSwitcher)
+public:
+    static WindowSwitcher& the();
+
+    WindowSwitcher();
+    virtual ~WindowSwitcher() override;
+
+    bool is_visible() const { return m_visible; }
+    void set_visible(bool);
+
+    void show() { set_visible(true); }
+    void hide() { set_visible(false); }
+
+    void on_key_event(const KeyEvent&);
+    void refresh();
+    void refresh_if_needed();
+
+    void draw();
+
+    int thumbnail_width() { return 40; }
+    int thumbnail_height() { return 40; }
+
+    int item_height() { return 10 + thumbnail_height(); }
+    int padding() { return 8; }
+    int item_padding() { return 8; }
+
+    Window* selected_window();
+
+    Window* switcher_window() { return m_switcher_window.ptr(); }
+
+private:
+    RefPtr<Window> m_switcher_window;
+    Gfx::Rect m_rect;
+    bool m_visible { false };
+    Vector<WeakPtr<Window>> m_windows;
+    int m_selected_index { 0 };
+};
+
+}