1 files changed, 111 insertions, 0 deletions
diff --git a/src/gui/modalMenu.h b/src/gui/modalMenu.h
new file mode 100644
index 000000000..e37c41533
--- /dev/null
+++ b/src/gui/modalMenu.h
@@ -0,0 +1,111 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "irrlichttypes_extrabloated.h"
+#include "irr_ptr.h"
+#include "util/string.h"
+
+class GUIModalMenu;
+
+class IMenuManager
+{
+public:
+	// A GUIModalMenu calls these when this class is passed as a parameter
+	virtual void createdMenu(gui::IGUIElement *menu) = 0;
+	virtual void deletingMenu(gui::IGUIElement *menu) = 0;
+};
+
+// Remember to drop() the menu after creating, so that it can
+// remove itself when it wants to.
+
+class GUIModalMenu : public gui::IGUIElement
+{
+public:
+	GUIModalMenu(gui::IGUIEnvironment* env, gui::IGUIElement* parent, s32 id,
+		IMenuManager *menumgr, bool remap_dbl_click = true);
+	virtual ~GUIModalMenu();
+
+	void allowFocusRemoval(bool allow);
+	bool canTakeFocus(gui::IGUIElement *e);
+	void draw();
+	void quitMenu();
+
+	virtual void regenerateGui(v2u32 screensize) = 0;
+	virtual void drawMenu() = 0;
+	virtual bool preprocessEvent(const SEvent &event);
+	virtual bool OnEvent(const SEvent &event) { return false; };
+	virtual bool pausesGame() { return false; } // Used for pause menu
+#ifdef __ANDROID__
+	virtual bool getAndroidUIInput() { return false; }
+	bool hasAndroidUIInput();
+#endif
+
+protected:
+	virtual std::wstring getLabelByID(s32 id) = 0;
+	virtual std::string getNameByID(s32 id) = 0;
+
+	/**
+	 * check if event is part of a double click
+	 * @param event event to evaluate
+	 * @return true/false if a doubleclick was detected
+	 */
+	bool DoubleClickDetection(const SEvent &event);
+
+	v2s32 m_pointer;
+	v2s32 m_old_pointer;  // Mouse position after previous mouse event
+	v2u32 m_screensize_old;
+	float m_gui_scale;
+#ifdef __ANDROID__
+	std::string m_jni_field_name;
+#endif
+#ifdef HAVE_TOUCHSCREENGUI
+	v2s32 m_down_pos;
+	bool m_touchscreen_visible = true;
+#endif
+
+private:
+	struct clickpos
+	{
+		v2s32 pos;
+		s64 time;
+	};
+	clickpos m_doubleclickdetect[2];
+
+	IMenuManager *m_menumgr;
+	/* If true, remap a double-click (or double-tap) action to ESC. This is so
+	 * that, for example, Android users can double-tap to close a formspec.
+	*
+	 * This value can (currently) only be set by the class constructor
+	 * and the default value for the setting is true.
+	 */
+	bool m_remap_dbl_click;
+	// This might be necessary to expose to the implementation if it
+	// wants to launch other menus
+	bool m_allow_focus_removal = false;
+
+#ifdef HAVE_TOUCHSCREENGUI
+	irr_ptr<gui::IGUIElement> m_hovered;
+
+	bool simulateMouseEvent(gui::IGUIElement *target, ETOUCH_INPUT_EVENT touch_event);
+	void enter(gui::IGUIElement *element);
+	void leave();
+#endif
+};