/*************************************************************************/
/*  editor_layouts_dialog.cpp                                            */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* "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 */
/* the following conditions:                                             */
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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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/*************************************************************************/

#include "editor_layouts_dialog.h"
#include "core/class_db.h"
#include "core/io/config_file.h"
#include "core/os/keyboard.h"
#include "editor/editor_settings.h"
#include "scene/gui/item_list.h"
#include "scene/gui/line_edit.h"

void EditorLayoutsDialog::_line_gui_input(const Ref<InputEvent> &p_event) {
	Ref<InputEventKey> k = p_event;

	if (k.is_valid()) {

		if (!k->is_pressed())
			return;

		switch (k->get_scancode()) {
			case KEY_KP_ENTER:
			case KEY_ENTER: {

				if (get_hide_on_ok())
					hide();
				ok_pressed();
				accept_event();
			} break;
			case KEY_ESCAPE: {

				hide();
				accept_event();
			} break;
		}
	}
}

void EditorLayoutsDialog::_bind_methods() {

	ADD_SIGNAL(MethodInfo("name_confirmed", PropertyInfo(Variant::STRING, "name")));
}

void EditorLayoutsDialog::ok_pressed() {

	if (layout_names->is_anything_selected()) {

		Vector<int> const selected_items = layout_names->get_selected_items();
		for (int i = 0; i < selected_items.size(); ++i) {

			emit_signal("name_confirmed", layout_names->get_item_text(selected_items[i]));
		}
	} else if (name->is_visible() && name->get_text() != "") {

		emit_signal("name_confirmed", name->get_text());
	}
}

void EditorLayoutsDialog::_post_popup() {

	ConfirmationDialog::_post_popup();
	name->clear();
	layout_names->clear();

	Ref<ConfigFile> config;
	config.instance();
	Error err = config->load(EditorSettings::get_singleton()->get_editor_layouts_config());
	if (err != OK) {

		return;
	}

	List<String> layouts;
	config.ptr()->get_sections(&layouts);

	for (List<String>::Element *E = layouts.front(); E; E = E->next()) {

		layout_names->add_item(**E);
	}
}

EditorLayoutsDialog::EditorLayoutsDialog() {

	makevb = memnew(VBoxContainer);
	add_child(makevb);
	makevb->set_anchor_and_margin(MARGIN_LEFT, ANCHOR_BEGIN, 5);
	makevb->set_anchor_and_margin(MARGIN_RIGHT, ANCHOR_END, -5);

	layout_names = memnew(ItemList);
	makevb->add_child(layout_names);
	layout_names->set_visible(true);
	layout_names->set_margin(MARGIN_TOP, 5);
	layout_names->set_anchor_and_margin(MARGIN_LEFT, ANCHOR_BEGIN, 5);
	layout_names->set_anchor_and_margin(MARGIN_RIGHT, ANCHOR_END, -5);
	layout_names->set_v_size_flags(Control::SIZE_EXPAND_FILL);
	layout_names->set_select_mode(ItemList::SELECT_MULTI);
	layout_names->set_allow_rmb_select(true);

	name = memnew(LineEdit);
	makevb->add_child(name);
	name->set_margin(MARGIN_TOP, 5);
	name->set_anchor_and_margin(MARGIN_LEFT, ANCHOR_BEGIN, 5);
	name->set_anchor_and_margin(MARGIN_RIGHT, ANCHOR_END, -5);
	name->connect("gui_input", callable_mp(this, &EditorLayoutsDialog::_line_gui_input));
	name->connect_compat("focus_entered", layout_names, "unselect_all");
}

void EditorLayoutsDialog::set_name_line_enabled(bool p_enabled) {

	name->set_visible(p_enabled);
}