/*************************************************************************/
/*  resource_preloader_editor_plugin.h                                   */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
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/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
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/*************************************************************************/

#ifndef RESOURCE_PRELOADER_EDITOR_PLUGIN_H
#define RESOURCE_PRELOADER_EDITOR_PLUGIN_H

#include "editor/editor_node.h"
#include "editor/editor_plugin.h"
#include "scene/gui/dialogs.h"
#include "scene/gui/file_dialog.h"
#include "scene/gui/tree.h"
#include "scene/main/resource_preloader.h"

class ResourcePreloaderEditor : public PanelContainer {

	GDCLASS(ResourcePreloaderEditor, PanelContainer);

	enum {
		BUTTON_OPEN_SCENE,
		BUTTON_EDIT_RESOURCE,
		BUTTON_REMOVE
	};

	Button *load;
	Button *paste;
	Tree *tree;
	bool loading_scene;

	EditorFileDialog *file;

	AcceptDialog *dialog;

	ResourcePreloader *preloader;

	void _load_pressed();
	void _load_scene_pressed();
	void _files_load_request(const Vector<String> &p_paths);
	void _paste_pressed();
	void _remove_resource(const String &p_to_remove);
	void _update_library();
	void _cell_button_pressed(Object *p_item, int p_column, int p_id);
	void _item_edited();

	UndoRedo *undo_redo;

	Variant get_drag_data_fw(const Point2 &p_point, Control *p_from);
	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);

protected:
	void _notification(int p_what);
	void _gui_input(Ref<InputEvent> p_event);
	static void _bind_methods();

public:
	void set_undo_redo(UndoRedo *p_undo_redo) { undo_redo = p_undo_redo; }

	void edit(ResourcePreloader *p_preloader);
	ResourcePreloaderEditor();
};

class ResourcePreloaderEditorPlugin : public EditorPlugin {

	GDCLASS(ResourcePreloaderEditorPlugin, EditorPlugin);

	ResourcePreloaderEditor *preloader_editor;
	EditorNode *editor;
	Button *button;

public:
	virtual String get_name() const { return "ResourcePreloader"; }
	bool has_main_screen() const { return false; }
	virtual void edit(Object *p_object);
	virtual bool handles(Object *p_object) const;
	virtual void make_visible(bool p_visible);

	ResourcePreloaderEditorPlugin(EditorNode *p_node);
	~ResourcePreloaderEditorPlugin();
};

#endif // RESOURCE_PRELOADER_EDITOR_PLUGIN_H