1 files changed, 123 insertions, 0 deletions
diff --git a/Userland/Services/WindowServer/MenuManager.h b/Userland/Services/WindowServer/MenuManager.h
new file mode 100644
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+++ b/Userland/Services/WindowServer/MenuManager.h
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+/*
+ * 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 "Menu.h"
+#include "MenuBar.h"
+#include "Window.h"
+#include <AK/HashMap.h>
+#include <AK/StringBuilder.h>
+#include <LibCore/Object.h>
+#include <LibCore/Timer.h>
+
+namespace WindowServer {
+
+class MenuManager final : public Core::Object {
+    C_OBJECT(MenuManager)
+public:
+    static MenuManager& the();
+
+    MenuManager();
+    virtual ~MenuManager() override;
+
+    void refresh();
+
+    bool is_open(const Menu&) const;
+    bool has_open_menu() const { return !m_open_menu_stack.is_empty(); }
+
+    Gfx::IntRect menubar_rect() const;
+    static int menubar_menu_margin() { return 16; }
+
+    void set_needs_window_resize();
+
+    Menu* current_menu() { return m_current_menu.ptr(); }
+    void set_current_menu(Menu*);
+    void clear_current_menu();
+    void open_menu(Menu&, bool as_current_menu = true);
+    void toggle_menu(Menu&);
+
+    MenuBar* current_menubar() { return m_current_menubar.ptr(); }
+    void set_current_menubar(MenuBar*);
+    void close_menubar(MenuBar&);
+
+    void close_bar();
+    void close_everyone();
+    void close_everyone_not_in_lineage(Menu&);
+    void close_menu_and_descendants(Menu&);
+
+    void close_all_menus_from_client(Badge<ClientConnection>, ClientConnection&);
+
+    Menu* system_menu() { return m_system_menu; }
+    void set_system_menu(Menu&);
+
+    int theme_index() const { return m_theme_index; }
+
+    Window& window() { return *m_window; }
+
+    template<typename Callback>
+    void for_each_active_menubar_menu(Callback callback)
+    {
+        if (system_menu()) {
+            if (callback(*system_menu()) == IterationDecision::Break)
+                return;
+        }
+        if (m_current_menubar)
+            m_current_menubar->for_each_menu(callback);
+    }
+
+    void did_change_theme();
+
+private:
+    void close_menus(const Vector<Menu*>&);
+
+    const Window& window() const { return *m_window; }
+
+    virtual void event(Core::Event&) override;
+    void handle_mouse_event(MouseEvent&);
+    void handle_menu_mouse_event(Menu&, const MouseEvent&);
+
+    void draw();
+
+    RefPtr<Window> m_window;
+
+    WeakPtr<Menu> m_current_menu;
+    WeakPtr<Window> m_previous_input_window;
+    Vector<WeakPtr<Menu>> m_open_menu_stack;
+
+    RefPtr<Core::Timer> m_search_timer;
+    StringBuilder m_current_search;
+    WeakPtr<Menu> m_system_menu;
+
+    bool m_needs_window_resize { false };
+    bool m_bar_open { false };
+
+    int m_theme_index { 0 };
+
+    WeakPtr<MenuBar> m_current_menubar;
+};
+
+}