godot/editor/plugins/script_editor_plugin.cpp

/*************************************************************************/
/*  script_editor_plugin.cpp                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2017 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 */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#include "script_editor_plugin.h"
#include "editor/editor_node.h"
#include "editor/editor_settings.h"
#include "editor/script_editor_debugger.h"
#include "globals.h"
#include "io/resource_loader.h"
#include "io/resource_saver.h"
#include "os/file_access.h"
#include "os/input.h"
#include "os/keyboard.h"
#include "os/os.h"
#include "scene/main/viewport.h"

/*** SCRIPT EDITOR ****/

static bool _can_open_in_editor(Script *p_script) {

	String path = p_script->get_path();

	if (path.find("::") != -1) {
		//refuse handling this if it can't be edited

		bool valid = false;
		for (int i = 0; i < EditorNode::get_singleton()->get_editor_data().get_edited_scene_count(); i++) {
			if (path.begins_with(EditorNode::get_singleton()->get_editor_data().get_scene_path(i))) {
				valid = true;
				break;
			}
		}

		return valid;
	}

	return true;
}

class EditorScriptCodeCompletionCache : public ScriptCodeCompletionCache {

	struct Cache {
		uint64_t time_loaded;
		RES cache;
	};

	Map<String, Cache> cached;

public:
	uint64_t max_time_cache;
	int max_cache_size;

	void cleanup() {

		List<Map<String, Cache>::Element *> to_clean;

		Map<String, Cache>::Element *I = cached.front();
		while (I) {
			if ((OS::get_singleton()->get_ticks_msec() - I->get().time_loaded) > max_time_cache) {
				to_clean.push_back(I);
			}
			I = I->next();
		}

		while (to_clean.front()) {
			cached.erase(to_clean.front()->get());
			to_clean.pop_front();
		}
	}

	RES get_cached_resource(const String &p_path) {

		Map<String, Cache>::Element *E = cached.find(p_path);
		if (!E) {

			Cache c;
			c.cache = ResourceLoader::load(p_path);
			E = cached.insert(p_path, c);
		}

		E->get().time_loaded = OS::get_singleton()->get_ticks_msec();

		if (cached.size() > max_cache_size) {
			uint64_t older;
			Map<String, Cache>::Element *O = cached.front();
			older = O->get().time_loaded;
			Map<String, Cache>::Element *I = O;
			while (I) {
				if (I->get().time_loaded < older) {
					older = I->get().time_loaded;
					O = I;
				}
				I = I->next();
			}

			if (O != E) { //should never heppane..
				cached.erase(O);
			}
		}

		return E->get().cache;
	}

	EditorScriptCodeCompletionCache() {

		max_cache_size = 128;
		max_time_cache = 5 * 60 * 1000; //minutes, five
	}
};

#define SORT_SCRIPT_LIST

void ScriptEditorQuickOpen::popup(const Vector<String> &p_functions, bool p_dontclear) {

	popup_centered_ratio(0.6);
	if (p_dontclear)
		search_box->select_all();
	else
		search_box->clear();
	search_box->grab_focus();
	functions = p_functions;
	_update_search();
}

void ScriptEditorQuickOpen::_text_changed(const String &p_newtext) {

	_update_search();
}

void ScriptEditorQuickOpen::_sbox_input(const InputEvent &p_ie) {

	if (p_ie.type == InputEvent::KEY && (p_ie.key.scancode == KEY_UP ||
												p_ie.key.scancode == KEY_DOWN ||
												p_ie.key.scancode == KEY_PAGEUP ||
												p_ie.key.scancode == KEY_PAGEDOWN)) {

		search_options->call("_input_event", p_ie);
		search_box->accept_event();
	}
}

void ScriptEditorQuickOpen::_update_search() {

	search_options->clear();
	TreeItem *root = search_options->create_item();

	for (int i = 0; i < functions.size(); i++) {

		String file = functions[i];
		if ((search_box->get_text() == "" || file.findn(search_box->get_text()) != -1)) {

			TreeItem *ti = search_options->create_item(root);
			ti->set_text(0, file);
			if (root->get_children() == ti)
				ti->select(0);
		}
	}

	get_ok()->set_disabled(root->get_children() == NULL);
}

void ScriptEditorQuickOpen::_confirmed() {

	TreeItem *ti = search_options->get_selected();
	if (!ti)
		return;
	int line = ti->get_text(0).get_slice(":", 1).to_int();

	emit_signal("goto_line", line - 1);
	hide();
}

void ScriptEditorQuickOpen::_notification(int p_what) {

	if (p_what == NOTIFICATION_ENTER_TREE) {

		connect("confirmed", this, "_confirmed");
	}
}

void ScriptEditorQuickOpen::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("_text_changed"), &ScriptEditorQuickOpen::_text_changed);
	ObjectTypeDB::bind_method(_MD("_confirmed"), &ScriptEditorQuickOpen::_confirmed);
	ObjectTypeDB::bind_method(_MD("_sbox_input"), &ScriptEditorQuickOpen::_sbox_input);

	ADD_SIGNAL(MethodInfo("goto_line", PropertyInfo(Variant::INT, "line")));
}

ScriptEditorQuickOpen::ScriptEditorQuickOpen() {

	VBoxContainer *vbc = memnew(VBoxContainer);
	add_child(vbc);
	set_child_rect(vbc);
	search_box = memnew(LineEdit);
	vbc->add_margin_child(TTR("Search:"), search_box);
	search_box->connect("text_changed", this, "_text_changed");
	search_box->connect("input_event", this, "_sbox_input");
	search_options = memnew(Tree);
	vbc->add_margin_child(TTR("Matches:"), search_options, true);
	get_ok()->set_text(TTR("Open"));
	get_ok()->set_disabled(true);
	register_text_enter(search_box);
	set_hide_on_ok(false);
	search_options->connect("item_activated", this, "_confirmed");
	search_options->set_hide_root(true);
}

/////////////////////////////////

ScriptEditor *ScriptEditor::script_editor = NULL;

Vector<String> ScriptTextEditor::get_functions() {

	String errortxt;
	int line = -1, col;
	TextEdit *te = get_text_edit();
	String text = te->get_text();
	List<String> fnc;

	if (script->get_language()->validate(text, line, col, errortxt, script->get_path(), &fnc)) {

		//if valid rewrite functions to latest
		functions.clear();
		for (List<String>::Element *E = fnc.front(); E; E = E->next()) {

			functions.push_back(E->get());
		}
	}

	return functions;
}

void ScriptTextEditor::apply_code() {

	if (script.is_null())
		return;
	//	print_line("applying code");
	script->set_source_code(get_text_edit()->get_text());
	script->update_exports();
}

Ref<Script> ScriptTextEditor::get_edited_script() const {

	return script;
}

void ScriptTextEditor::_load_theme_settings() {

	get_text_edit()->clear_colors();

	/* keyword color */

	get_text_edit()->set_custom_bg_color(EDITOR_DEF("text_editor/background_color", Color(0, 0, 0, 0)));
	get_text_edit()->add_color_override("completion_background_color", EDITOR_DEF("text_editor/completion_background_color", Color(0, 0, 0, 0)));
	get_text_edit()->add_color_override("completion_selected_color", EDITOR_DEF("text_editor/completion_selected_color", Color::html("434244")));
	get_text_edit()->add_color_override("completion_existing_color", EDITOR_DEF("text_editor/completion_existing_color", Color::html("21dfdfdf")));
	get_text_edit()->add_color_override("completion_scroll_color", EDITOR_DEF("text_editor/completion_scroll_color", Color::html("ffffff")));
	get_text_edit()->add_color_override("completion_font_color", EDITOR_DEF("text_editor/completion_font_color", Color::html("aaaaaa")));
	get_text_edit()->add_color_override("font_color", EDITOR_DEF("text_editor/text_color", Color(0, 0, 0)));
	get_text_edit()->add_color_override("line_number_color", EDITOR_DEF("text_editor/line_number_color", Color(0, 0, 0)));
	get_text_edit()->add_color_override("caret_color", EDITOR_DEF("text_editor/caret_color", Color(0, 0, 0)));
	get_text_edit()->add_color_override("caret_background_color", EDITOR_DEF("text_editor/caret_background_color", Color(0, 0, 0)));
	get_text_edit()->add_color_override("font_selected_color", EDITOR_DEF("text_editor/text_selected_color", Color(1, 1, 1)));
	get_text_edit()->add_color_override("selection_color", EDITOR_DEF("text_editor/selection_color", Color(0.2, 0.2, 1)));
	get_text_edit()->add_color_override("brace_mismatch_color", EDITOR_DEF("text_editor/brace_mismatch_color", Color(1, 0.2, 0.2)));
	get_text_edit()->add_color_override("current_line_color", EDITOR_DEF("text_editor/current_line_color", Color(0.3, 0.5, 0.8, 0.15)));
	get_text_edit()->add_color_override("word_highlighted_color", EDITOR_DEF("text_editor/word_highlighted_color", Color(0.8, 0.9, 0.9, 0.15)));
	get_text_edit()->add_color_override("number_color", EDITOR_DEF("text_editor/number_color", Color(0.9, 0.6, 0.0, 2)));
	get_text_edit()->add_color_override("function_color", EDITOR_DEF("text_editor/function_color", Color(0.4, 0.6, 0.8)));
	get_text_edit()->add_color_override("member_variable_color", EDITOR_DEF("text_editor/member_variable_color", Color(0.9, 0.3, 0.3)));
	get_text_edit()->add_color_override("mark_color", EDITOR_DEF("text_editor/mark_color", Color(1.0, 0.4, 0.4, 0.4)));
	get_text_edit()->add_color_override("breakpoint_color", EDITOR_DEF("text_editor/breakpoint_color", Color(0.8, 0.8, 0.4, 0.2)));
	get_text_edit()->add_color_override("search_result_color", EDITOR_DEF("text_editor/search_result_color", Color(0.05, 0.25, 0.05, 1)));
	get_text_edit()->add_color_override("search_result_border_color", EDITOR_DEF("text_editor/search_result_border_color", Color(0.1, 0.45, 0.1, 1)));
	get_text_edit()->add_constant_override("line_spacing", EDITOR_DEF("text_editor/line_spacing", 4));

	Color keyword_color = EDITOR_DEF("text_editor/keyword_color", Color(0.5, 0.0, 0.2));

	List<String> keywords;
	script->get_language()->get_reserved_words(&keywords);
	for (List<String>::Element *E = keywords.front(); E; E = E->next()) {

		get_text_edit()->add_keyword_color(E->get(), keyword_color);
	}

	//colorize core types
	Color basetype_color = EDITOR_DEF("text_editor/base_type_color", Color(0.3, 0.3, 0.0));

	get_text_edit()->add_keyword_color("Vector2", basetype_color);
	get_text_edit()->add_keyword_color("Vector3", basetype_color);
	get_text_edit()->add_keyword_color("Plane", basetype_color);
	get_text_edit()->add_keyword_color("Quat", basetype_color);
	get_text_edit()->add_keyword_color("AABB", basetype_color);
	get_text_edit()->add_keyword_color("Matrix3", basetype_color);
	get_text_edit()->add_keyword_color("Transform", basetype_color);
	get_text_edit()->add_keyword_color("Color", basetype_color);
	get_text_edit()->add_keyword_color("Image", basetype_color);
	get_text_edit()->add_keyword_color("InputEvent", basetype_color);
	get_text_edit()->add_keyword_color("Rect2", basetype_color);
	get_text_edit()->add_keyword_color("NodePath", basetype_color);

	//colorize engine types
	Color type_color = EDITOR_DEF("text_editor/engine_type_color", Color(0.0, 0.2, 0.4));

	List<StringName> types;
	ObjectTypeDB::get_type_list(&types);

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

		String n = E->get();
		if (n.begins_with("_"))
			n = n.substr(1, n.length());

		get_text_edit()->add_keyword_color(n, type_color);
	}

	//colorize comments
	Color comment_color = EDITOR_DEF("text_editor/comment_color", Color::hex(0x797e7eff));
	List<String> comments;
	script->get_language()->get_comment_delimiters(&comments);

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

		String comment = E->get();
		String beg = comment.get_slice(" ", 0);
		String end = comment.get_slice_count(" ") > 1 ? comment.get_slice(" ", 1) : String();

		get_text_edit()->add_color_region(beg, end, comment_color, end == "");
	}

	//colorize strings
	Color string_color = EDITOR_DEF("text_editor/string_color", Color::hex(0x6b6f00ff));
	List<String> strings;
	script->get_language()->get_string_delimiters(&strings);

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

		String string = E->get();
		String beg = string.get_slice(" ", 0);
		String end = string.get_slice_count(" ") > 1 ? string.get_slice(" ", 1) : String();
		get_text_edit()->add_color_region(beg, end, string_color, end == "");
	}

	//colorize symbols
	Color symbol_color = EDITOR_DEF("text_editor/symbol_color", Color::hex(0x005291ff));
	get_text_edit()->set_symbol_color(symbol_color);
}

void ScriptTextEditor::reload_text() {

	ERR_FAIL_COND(script.is_null());

	TextEdit *te = get_text_edit();
	int column = te->cursor_get_column();
	int row = te->cursor_get_line();
	int h = te->get_h_scroll();
	int v = te->get_v_scroll();

	te->set_text(script->get_source_code());
	te->clear_undo_history();
	te->cursor_set_line(row);
	te->cursor_set_column(column);
	te->set_h_scroll(h);
	te->set_v_scroll(v);

	te->tag_saved_version();

	_line_col_changed();
}

void ScriptTextEditor::_notification(int p_what) {

	if (p_what == NOTIFICATION_READY) {

		//emit_signal("name_changed");
	}
}

bool ScriptTextEditor::is_unsaved() {

	return get_text_edit()->get_version() != get_text_edit()->get_saved_version();
}

String ScriptTextEditor::get_name() {
	String name;

	if (script->get_path().find("local://") == -1 && script->get_path().find("::") == -1) {
		name = script->get_path().get_file();
		if (get_text_edit()->get_version() != get_text_edit()->get_saved_version()) {
			name += "(*)";
		}
	} else if (script->get_name() != "")
		name = script->get_name();
	else
		name = script->get_type() + "(" + itos(script->get_instance_ID()) + ")";

	return name;
}

Ref<Texture> ScriptTextEditor::get_icon() {

	if (get_parent_control() && get_parent_control()->has_icon(script->get_type(), "EditorIcons")) {
		return get_parent_control()->get_icon(script->get_type(), "EditorIcons");
	}

	return Ref<Texture>();
}

void ScriptTextEditor::set_edited_script(const Ref<Script> &p_script) {

	ERR_FAIL_COND(!script.is_null());

	script = p_script;

	_load_theme_settings();

	get_text_edit()->set_text(script->get_source_code());
	get_text_edit()->clear_undo_history();
	get_text_edit()->tag_saved_version();

	emit_signal("name_changed");
	_line_col_changed();
}

void ScriptTextEditor::_validate_script() {

	String errortxt;
	int line = -1, col;
	TextEdit *te = get_text_edit();

	String text = te->get_text();
	List<String> fnc;

	if (!script->get_language()->validate(text, line, col, errortxt, script->get_path(), &fnc)) {
		String error_text = "error(" + itos(line) + "," + itos(col) + "): " + errortxt;
		set_error(error_text);
	} else {
		set_error("");
		line = -1;
		if (!script->is_tool()) {
			script->set_source_code(text);
			script->update_exports();
			//script->reload(); //will update all the variables in property editors
		}

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

			functions.push_back(E->get());
		}
	}

	line--;
	for (int i = 0; i < te->get_line_count(); i++) {
		te->set_line_as_marked(i, line == i);
	}

	emit_signal("name_changed");
}

static Node *_find_node_for_script(Node *p_base, Node *p_current, const Ref<Script> &p_script) {

	if (p_current->get_owner() != p_base && p_base != p_current)
		return NULL;
	Ref<Script> c = p_current->get_script();
	if (c == p_script)
		return p_current;
	for (int i = 0; i < p_current->get_child_count(); i++) {
		Node *found = _find_node_for_script(p_base, p_current->get_child(i), p_script);
		if (found)
			return found;
	}

	return NULL;
}

static void _find_changed_scripts_for_external_editor(Node *p_base, Node *p_current, Set<Ref<Script> > &r_scripts) {

	if (p_current->get_owner() != p_base && p_base != p_current)
		return;
	Ref<Script> c = p_current->get_script();

	if (c.is_valid())
		r_scripts.insert(c);

	for (int i = 0; i < p_current->get_child_count(); i++) {
		_find_changed_scripts_for_external_editor(p_base, p_current->get_child(i), r_scripts);
	}
}

void ScriptEditor::_update_modified_scripts_for_external_editor(Ref<Script> p_for_script) {

	if (!bool(EditorSettings::get_singleton()->get("external_editor/use_external_editor")))
		return;

	Set<Ref<Script> > scripts;

	Node *base = get_tree()->get_edited_scene_root();
	if (base) {
		_find_changed_scripts_for_external_editor(base, base, scripts);
	}

	for (Set<Ref<Script> >::Element *E = scripts.front(); E; E = E->next()) {

		Ref<Script> script = E->get();

		if (p_for_script.is_valid() && p_for_script != script)
			continue;

		if (script->get_path() == "" || script->get_path().find("local://") != -1 || script->get_path().find("::") != -1) {

			continue; //internal script, who cares, though weird
		}

		uint64_t last_date = script->get_last_modified_time();
		uint64_t date = FileAccess::get_modified_time(script->get_path());

		if (last_date != date) {

			Ref<Script> rel_script = ResourceLoader::load(script->get_path(), script->get_type(), true);
			ERR_CONTINUE(!rel_script.is_valid());
			script->set_source_code(rel_script->get_source_code());
			script->set_last_modified_time(rel_script->get_last_modified_time());
			script->update_exports();
		}
	}
}

void ScriptTextEditor::_code_complete_script(const String &p_code, List<String> *r_options) {

	Node *base = get_tree()->get_edited_scene_root();
	if (base) {
		base = _find_node_for_script(base, base, script);
	}
	String hint;
	Error err = script->get_language()->complete_code(p_code, script->get_path().get_base_dir(), base, r_options, hint);
	if (hint != "") {
		get_text_edit()->set_code_hint(hint);
	}
}
void ScriptTextEditor::_bind_methods() {

	ADD_SIGNAL(MethodInfo("name_changed"));
}

ScriptTextEditor::ScriptTextEditor() {
}

/*** SCRIPT EDITOR ******/

String ScriptEditor::_get_debug_tooltip(const String &p_text, Node *_ste) {

	ScriptTextEditor *ste = _ste->cast_to<ScriptTextEditor>();

	String val = debugger->get_var_value(p_text);
	if (val != String()) {
		return p_text + ": " + val;
	} else {

		return String();
	}
}

void ScriptEditor::_breaked(bool p_breaked, bool p_can_debug) {

	if (bool(EditorSettings::get_singleton()->get("text_editor/external/use_external_editor"))) {
		return;
	}

	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_NEXT), !(p_breaked && p_can_debug));
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_STEP), !(p_breaked && p_can_debug));
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_BREAK), p_breaked);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_CONTINUE), !p_breaked);
}

void ScriptEditor::_show_debugger(bool p_show) {

	//	debug_menu->get_popup()->set_item_checked( debug_menu->get_popup()->get_item_index(DEBUG_SHOW), p_show);
}

void ScriptEditor::_script_created(Ref<Script> p_script) {
	editor->push_item(p_script.operator->());
}

void ScriptEditor::_trim_trailing_whitespace(TextEdit *tx) {

	bool trimed_whitespace = false;
	for (int i = 0; i < tx->get_line_count(); i++) {
		String line = tx->get_line(i);
		if (line.ends_with(" ") || line.ends_with("\t")) {

			if (!trimed_whitespace) {
				tx->begin_complex_operation();
				trimed_whitespace = true;
			}

			int end = 0;
			for (int j = line.length() - 1; j > -1; j--) {
				if (line[j] != ' ' && line[j] != '\t') {
					end = j + 1;
					break;
				}
			}
			tx->set_line(i, line.substr(0, end));
		}
	}
	if (trimed_whitespace) {
		tx->end_complex_operation();
		tx->update();
	}
}

void ScriptEditor::_goto_script_line2(int p_line) {

	int selected = tab_container->get_current_tab();
	if (selected < 0 || selected >= tab_container->get_child_count())
		return;

	ScriptTextEditor *current = tab_container->get_child(selected)->cast_to<ScriptTextEditor>();
	if (!current)
		return;

	current->get_text_edit()->cursor_set_line(p_line);
}

void ScriptEditor::_goto_script_line(REF p_script, int p_line) {

	editor->push_item(p_script.ptr());
	_goto_script_line2(p_line);
}

void ScriptEditor::_update_history_arrows() {

	script_back->set_disabled(history_pos <= 0);
	script_forward->set_disabled(history_pos >= history.size() - 1);
}

void ScriptEditor::_go_to_tab(int p_idx) {

	Node *cn = tab_container->get_child(p_idx);
	if (!cn)
		return;
	Control *c = cn->cast_to<Control>();
	if (!c)
		return;

	if (history_pos >= 0 && history_pos < history.size() && history[history_pos].control == tab_container->get_current_tab_control()) {

		Node *n = tab_container->get_current_tab_control();

		if (n->cast_to<ScriptTextEditor>()) {

			history[history_pos].scroll_pos = n->cast_to<ScriptTextEditor>()->get_text_edit()->get_v_scroll();
			history[history_pos].cursor_column = n->cast_to<ScriptTextEditor>()->get_text_edit()->cursor_get_column();
			history[history_pos].cursor_row = n->cast_to<ScriptTextEditor>()->get_text_edit()->cursor_get_line();
		}
		if (n->cast_to<EditorHelp>()) {

			history[history_pos].scroll_pos = n->cast_to<EditorHelp>()->get_scroll();
		}
	}

	history.resize(history_pos + 1);
	ScriptHistory sh;
	sh.control = c;
	sh.scroll_pos = 0;

	history.push_back(sh);
	history_pos++;

	tab_container->set_current_tab(p_idx);

	c = tab_container->get_current_tab_control();

	if (c->cast_to<ScriptTextEditor>()) {

		script_name_label->set_text(c->cast_to<ScriptTextEditor>()->get_name());
		script_icon->set_texture(c->cast_to<ScriptTextEditor>()->get_icon());
		if (is_visible())
			c->cast_to<ScriptTextEditor>()->get_text_edit()->grab_focus();
	}
	if (c->cast_to<EditorHelp>()) {

		script_name_label->set_text(c->cast_to<EditorHelp>()->get_class_name());
		script_icon->set_texture(get_icon("Help", "EditorIcons"));
		if (is_visible())
			c->cast_to<EditorHelp>()->set_focused();
	}

	c->set_meta("__editor_pass", ++edit_pass);
	_update_history_arrows();
	_update_script_colors();
	_update_members_overview();
	_update_members_overview_visibility();
}

void ScriptEditor::_close_tab(int p_idx) {

	int selected = p_idx;
	if (selected < 0 || selected >= tab_container->get_child_count())
		return;

	Node *tselected = tab_container->get_child(selected);
	ScriptTextEditor *current = tab_container->get_child(selected)->cast_to<ScriptTextEditor>();
	if (current) {
		apply_scripts();
	}

	// roll back to previous tab
	_history_back();

	//remove from history
	history.resize(history_pos + 1);

	for (int i = 0; i < history.size(); i++) {
		if (history[i].control == tselected) {
			history.remove(i);
			i--;
			history_pos--;
		}
	}

	if (history_pos >= history.size()) {
		history_pos = history.size() - 1;
	}

	int idx = tab_container->get_current_tab();
	memdelete(tselected);
	if (idx >= tab_container->get_child_count())
		idx = tab_container->get_child_count() - 1;
	if (idx >= 0) {

		if (history_pos >= 0) {
			idx = history[history_pos].control->get_index();
		}
		tab_container->set_current_tab(idx);

		//script_list->select(idx);
	}

	_update_history_arrows();

	_update_script_names();
	_update_members_overview_visibility();
	_save_layout();
}

void ScriptEditor::_close_current_tab() {

	_close_tab(tab_container->get_current_tab());
}

void ScriptEditor::_close_docs_tab() {

	int child_count = tab_container->get_child_count();
	for (int i = child_count - 1; i >= 0; i--) {

		EditorHelp *ste = tab_container->get_child(i)->cast_to<EditorHelp>();

		if (ste) {
			_close_tab(i);
		}
	}
}

void ScriptEditor::_resave_scripts(const String &p_str) {

	apply_scripts();

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;

		Ref<Script> script = ste->get_edited_script();

		if (script->get_path() == "" || script->get_path().find("local://") != -1 || script->get_path().find("::") != -1)
			continue; //internal script, who cares

		if (trim_trailing_whitespace_on_save) {
			_trim_trailing_whitespace(ste->get_text_edit());
		}
		editor->save_resource(script);
		ste->get_text_edit()->tag_saved_version();
	}

	disk_changed->hide();
}

void ScriptEditor::_reload_scripts() {

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste) {

			continue;
		}

		Ref<Script> script = ste->get_edited_script();

		if (script->get_path() == "" || script->get_path().find("local://") != -1 || script->get_path().find("::") != -1) {

			continue; //internal script, who cares
		}

		uint64_t last_date = script->get_last_modified_time();
		uint64_t date = FileAccess::get_modified_time(script->get_path());

		//printf("last date: %lli vs date: %lli\n",last_date,date);
		if (last_date == date) {
			continue;
		}

		Ref<Script> rel_script = ResourceLoader::load(script->get_path(), script->get_type(), true);
		ERR_CONTINUE(!rel_script.is_valid());
		script->set_source_code(rel_script->get_source_code());
		script->set_last_modified_time(rel_script->get_last_modified_time());
		script->reload();
		ste->reload_text();
	}

	disk_changed->hide();
	_update_script_names();
}

void ScriptEditor::_res_saved_callback(const Ref<Resource> &p_res) {

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste) {

			continue;
		}

		Ref<Script> script = ste->get_edited_script();

		if (script->get_path() == "" || script->get_path().find("local://") != -1 || script->get_path().find("::") != -1) {
			continue; //internal script, who cares
		}

		if (script == p_res) {

			ste->get_text_edit()->tag_saved_version();
		}
	}

	_update_script_names();

	if (!pending_auto_reload && auto_reload_running_scripts) {
		call_deferred("_live_auto_reload_running_scripts");
		pending_auto_reload = true;
	}
}

void ScriptEditor::_live_auto_reload_running_scripts() {
	pending_auto_reload = false;
	debugger->reload_scripts();
}

bool ScriptEditor::_test_script_times_on_disk(Ref<Script> p_for_script) {

	disk_changed_list->clear();
	TreeItem *r = disk_changed_list->create_item();
	disk_changed_list->set_hide_root(true);

	bool need_ask = false;
	bool need_reload = false;
	bool use_autoreload = bool(EDITOR_DEF("text_editor/auto_reload_scripts_on_external_change", false));

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (ste) {

			Ref<Script> script = ste->get_edited_script();

			if (p_for_script.is_valid() && p_for_script != script)
				continue;

			if (script->get_path() == "" || script->get_path().find("local://") != -1 || script->get_path().find("::") != -1)
				continue; //internal script, who cares

			uint64_t last_date = script->get_last_modified_time();
			uint64_t date = FileAccess::get_modified_time(script->get_path());

			//printf("last date: %lli vs date: %lli\n",last_date,date);
			if (last_date != date) {

				TreeItem *ti = disk_changed_list->create_item(r);
				ti->set_text(0, script->get_path().get_file());

				if (!use_autoreload || ste->is_unsaved()) {
					need_ask = true;
				}
				need_reload = true;
				//r->set_metadata(0,);
			}
		}
	}

	if (need_reload) {
		if (!need_ask) {
			script_editor->_reload_scripts();
			need_reload = false;
		} else {
			disk_changed->call_deferred("popup_centered_ratio", 0.5);
		}
	}

	return need_reload;
}

void ScriptEditor::swap_lines(TextEdit *tx, int line1, int line2) {
	String tmp = tx->get_line(line1);
	String tmp2 = tx->get_line(line2);
	tx->set_line(line2, tmp);
	tx->set_line(line1, tmp2);

	tx->cursor_set_line(line2);
}

void ScriptEditor::_breakpoint_toggled(const int p_row) {
	int selected = tab_container->get_current_tab();
	if (selected < 0 || selected >= tab_container->get_child_count()) {
		return;
	}

	ScriptTextEditor *current = tab_container->get_child(selected)->cast_to<ScriptTextEditor>();
	if (current) {
		get_debugger()->set_breakpoint(current->get_edited_script()->get_path(), p_row + 1, current->get_text_edit()->is_line_set_as_breakpoint(p_row));
	}
}

void ScriptEditor::_file_dialog_action(String p_file) {

	switch (file_dialog_option) {
		case FILE_SAVE_THEME_AS: {
			if (!EditorSettings::get_singleton()->save_text_editor_theme_as(p_file)) {
				editor->show_warning(TTR("Error while saving theme"), TTR("Error saving"));
			}
		} break;
		case FILE_IMPORT_THEME: {
			if (!EditorSettings::get_singleton()->import_text_editor_theme(p_file)) {
				editor->show_warning(TTR("Error importing theme"), TTR("Error importing"));
			}
		} break;
	}
	file_dialog_option = -1;
}

void ScriptEditor::_menu_option(int p_option) {

	switch (p_option) {
		case FILE_NEW: {
			script_create_dialog->config("Node", ".gd");
			script_create_dialog->popup_centered(Size2(300, 300) * EDSCALE);
		} break;
		case FILE_OPEN: {

			editor->open_resource("Script");
			return;
		} break;
		case FILE_SAVE_ALL: {

			if (!_test_script_times_on_disk())
				return;

			save_all_scripts();

#if 0
			for(int i=0;i<tab_container->get_child_count();i++) {

				ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
				if (!ste)
					continue;


				Ref<Script> script = ste->get_edited_script();

				if (script->get_path()=="" || script->get_path().find("local://")!=-1 || script->get_path().find("::")!=-1)
					continue; //internal script, who cares


				editor->save_resource( script );
			}

#endif
		} break;
		case FILE_IMPORT_THEME: {
			file_dialog->set_mode(EditorFileDialog::MODE_OPEN_FILE);
			file_dialog->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
			file_dialog_option = FILE_IMPORT_THEME;
			file_dialog->clear_filters();
			file_dialog->add_filter("*.tet");
			file_dialog->popup_centered_ratio();
			file_dialog->set_title(TTR("Import Theme"));
		} break;
		case FILE_RELOAD_THEME: {
			EditorSettings::get_singleton()->load_text_editor_theme();
		} break;
		case FILE_SAVE_THEME: {
			if (!EditorSettings::get_singleton()->save_text_editor_theme()) {
				editor->show_warning(TTR("Error while saving theme"), TTR("Error saving"));
			}
		} break;
		case FILE_SAVE_THEME_AS: {
			file_dialog->set_mode(EditorFileDialog::MODE_SAVE_FILE);
			file_dialog->set_access(EditorFileDialog::ACCESS_FILESYSTEM);
			file_dialog_option = FILE_SAVE_THEME_AS;
			file_dialog->clear_filters();
			file_dialog->add_filter("*.tet");
			file_dialog->set_current_path(EditorSettings::get_singleton()->get_settings_path() + "/text_editor_themes/" + EditorSettings::get_singleton()->get("text_editor/color_theme"));
			file_dialog->popup_centered_ratio();
			file_dialog->set_title(TTR("Save Theme As.."));
		} break;
		case SEARCH_HELP: {

			help_search_dialog->popup();
		} break;
		case SEARCH_CLASSES: {

			String current;

			if (tab_container->get_tab_count() > 0) {
				EditorHelp *eh = tab_container->get_child(tab_container->get_current_tab())->cast_to<EditorHelp>();
				if (eh) {
					current = eh->get_class_name();
				}
			}

			help_index->popup();

			if (current != "") {
				help_index->call_deferred("select_class", current);
			}
		} break;
		case SEARCH_WEBSITE: {

			OS::get_singleton()->shell_open("http://docs.godotengine.org/");
		} break;

		case WINDOW_NEXT: {

			_history_forward();
		} break;
		case WINDOW_PREV: {
			_history_back();
		} break;
		case DEBUG_SHOW: {
			if (debugger) {
				bool visible = debug_menu->get_popup()->is_item_checked(debug_menu->get_popup()->get_item_index(DEBUG_SHOW));
				debug_menu->get_popup()->set_item_checked(debug_menu->get_popup()->get_item_index(DEBUG_SHOW), !visible);
				if (visible)
					debugger->hide();
				else
					debugger->show();
			}
		} break;
		case DEBUG_SHOW_KEEP_OPEN: {
			bool visible = debug_menu->get_popup()->is_item_checked(debug_menu->get_popup()->get_item_index(DEBUG_SHOW_KEEP_OPEN));
			if (debugger)
				debugger->set_hide_on_stop(visible);
			debug_menu->get_popup()->set_item_checked(debug_menu->get_popup()->get_item_index(DEBUG_SHOW_KEEP_OPEN), !visible);
		} break;
	}

	int selected = tab_container->get_current_tab();
	if (selected < 0 || selected >= tab_container->get_child_count())
		return;

	ScriptTextEditor *current = tab_container->get_child(selected)->cast_to<ScriptTextEditor>();
	if (current) {

		switch (p_option) {
			case FILE_NEW: {
				script_create_dialog->config("Node", ".gd");
				script_create_dialog->popup_centered(Size2(300, 300) * EDSCALE);
			} break;
			case FILE_SAVE: {

				if (_test_script_times_on_disk())
					return;

				if (trim_trailing_whitespace_on_save) {
					_trim_trailing_whitespace(current->get_text_edit());
				}
				editor->save_resource(current->get_edited_script());

			} break;
			case FILE_SAVE_AS: {

				if (trim_trailing_whitespace_on_save) {
					_trim_trailing_whitespace(current->get_text_edit());
				}
				editor->push_item(current->get_edited_script()->cast_to<Object>());
				editor->save_resource_as(current->get_edited_script());

			} break;
			case EDIT_UNDO: {
				current->get_text_edit()->undo();
				current->get_text_edit()->call_deferred("grab_focus");
			} break;
			case EDIT_REDO: {
				current->get_text_edit()->redo();
				current->get_text_edit()->call_deferred("grab_focus");
			} break;
			case EDIT_CUT: {

				current->get_text_edit()->cut();
				current->get_text_edit()->call_deferred("grab_focus");
			} break;
			case EDIT_COPY: {
				current->get_text_edit()->copy();
				current->get_text_edit()->call_deferred("grab_focus");

			} break;
			case EDIT_PASTE: {
				current->get_text_edit()->paste();
				current->get_text_edit()->call_deferred("grab_focus");

			} break;
			case EDIT_SELECT_ALL: {

				current->get_text_edit()->select_all();
				current->get_text_edit()->call_deferred("grab_focus");

			} break;
			case EDIT_MOVE_LINE_UP: {

				TextEdit *tx = current->get_text_edit();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;

				tx->begin_complex_operation();
				if (tx->is_selection_active()) {
					int from_line = tx->get_selection_from_line();
					int from_col = tx->get_selection_from_column();
					int to_line = tx->get_selection_to_line();
					int to_column = tx->get_selection_to_column();

					for (int i = from_line; i <= to_line; i++) {
						int line_id = i;
						int next_id = i - 1;

						if (line_id == 0 || next_id < 0)
							return;

						swap_lines(tx, line_id, next_id);
					}
					int from_line_up = from_line > 0 ? from_line - 1 : from_line;
					int to_line_up = to_line > 0 ? to_line - 1 : to_line;
					tx->select(from_line_up, from_col, to_line_up, to_column);
				} else {
					int line_id = tx->cursor_get_line();
					int next_id = line_id - 1;

					if (line_id == 0 || next_id < 0)
						return;

					swap_lines(tx, line_id, next_id);
				}
				tx->end_complex_operation();
				tx->update();

			} break;
			case EDIT_MOVE_LINE_DOWN: {

				TextEdit *tx = current->get_text_edit();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;

				tx->begin_complex_operation();
				if (tx->is_selection_active()) {
					int from_line = tx->get_selection_from_line();
					int from_col = tx->get_selection_from_column();
					int to_line = tx->get_selection_to_line();
					int to_column = tx->get_selection_to_column();

					for (int i = to_line; i >= from_line; i--) {
						int line_id = i;
						int next_id = i + 1;

						if (line_id == tx->get_line_count() - 1 || next_id > tx->get_line_count())
							return;

						swap_lines(tx, line_id, next_id);
					}
					int from_line_down = from_line < tx->get_line_count() ? from_line + 1 : from_line;
					int to_line_down = to_line < tx->get_line_count() ? to_line + 1 : to_line;
					tx->select(from_line_down, from_col, to_line_down, to_column);
				} else {
					int line_id = tx->cursor_get_line();
					int next_id = line_id + 1;

					if (line_id == tx->get_line_count() - 1 || next_id > tx->get_line_count())
						return;

					swap_lines(tx, line_id, next_id);
				}
				tx->end_complex_operation();
				tx->update();

			} break;
			case EDIT_INDENT_LEFT: {

				TextEdit *tx = current->get_text_edit();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;

				tx->begin_complex_operation();
				if (tx->is_selection_active()) {
					tx->indent_selection_left();
				} else {
					int begin = tx->cursor_get_line();
					String line_text = tx->get_line(begin);
					// begins with tab
					if (line_text.begins_with("\t")) {
						line_text = line_text.substr(1, line_text.length());
						tx->set_line(begin, line_text);
					}
					// begins with 4 spaces
					else if (line_text.begins_with("    ")) {
						line_text = line_text.substr(4, line_text.length());
						tx->set_line(begin, line_text);
					}
				}
				tx->end_complex_operation();
				tx->update();
				//tx->deselect();

			} break;
			case EDIT_INDENT_RIGHT: {

				TextEdit *tx = current->get_text_edit();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;

				tx->begin_complex_operation();
				if (tx->is_selection_active()) {
					tx->indent_selection_right();
				} else {
					int begin = tx->cursor_get_line();
					String line_text = tx->get_line(begin);
					line_text = '\t' + line_text;
					tx->set_line(begin, line_text);
				}
				tx->end_complex_operation();
				tx->update();
				//tx->deselect();

			} break;
			case EDIT_CLONE_DOWN: {

				TextEdit *tx = current->get_text_edit();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;

				int from_line = tx->cursor_get_line();
				int to_line = tx->cursor_get_line();
				int column = tx->cursor_get_column();

				if (tx->is_selection_active()) {
					from_line = tx->get_selection_from_line();
					to_line = tx->get_selection_to_line();
					column = tx->cursor_get_column();
				}
				int next_line = to_line + 1;

				tx->begin_complex_operation();
				for (int i = from_line; i <= to_line; i++) {

					if (i >= tx->get_line_count() - 1) {
						tx->set_line(i, tx->get_line(i) + "\n");
					}
					String line_clone = tx->get_line(i);
					tx->insert_at(line_clone, next_line);
					next_line++;
				}

				tx->cursor_set_column(column);
				if (tx->is_selection_active()) {
					tx->select(to_line + 1, tx->get_selection_from_column(), next_line - 1, tx->get_selection_to_column());
				}

				tx->end_complex_operation();
				tx->update();

			} break;
			case EDIT_TOGGLE_COMMENT: {

				TextEdit *tx = current->get_text_edit();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;

				tx->begin_complex_operation();
				if (tx->is_selection_active()) {
					int begin = tx->get_selection_from_line();
					int end = tx->get_selection_to_line();

					// End of selection ends on the first column of the last line, ignore it.
					if (tx->get_selection_to_column() == 0)
						end -= 1;

					for (int i = begin; i <= end; i++) {
						String line_text = tx->get_line(i);

						if (line_text.begins_with("#"))
							line_text = line_text.substr(1, line_text.length());
						else
							line_text = "#" + line_text;
						tx->set_line(i, line_text);
					}
				} else {
					int begin = tx->cursor_get_line();
					String line_text = tx->get_line(begin);

					if (line_text.begins_with("#"))
						line_text = line_text.substr(1, line_text.length());
					else
						line_text = "#" + line_text;
					tx->set_line(begin, line_text);
				}
				tx->end_complex_operation();
				tx->update();
				//tx->deselect();

			} break;
			case EDIT_COMPLETE: {

				current->get_text_edit()->query_code_comple();

			} break;
			case EDIT_AUTO_INDENT: {

				TextEdit *te = current->get_text_edit();
				String text = te->get_text();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;
				int begin, end;
				if (te->is_selection_active()) {
					begin = te->get_selection_from_line();
					end = te->get_selection_to_line();
				} else {
					begin = 0;
					end = te->get_line_count() - 1;
				}
				scr->get_language()->auto_indent_code(text, begin, end);
				te->set_text(text);

			} break;
			case FILE_TOOL_RELOAD:
			case FILE_TOOL_RELOAD_SOFT: {

				TextEdit *te = current->get_text_edit();
				Ref<Script> scr = current->get_edited_script();
				if (scr.is_null())
					return;
				scr->set_source_code(te->get_text());
				bool soft = p_option == FILE_TOOL_RELOAD_SOFT || scr->get_instance_base_type() == "EditorPlugin"; //always soft-reload editor plugins

				scr->get_language()->reload_tool_script(scr, soft);
			} break;
			case EDIT_TRIM_TRAILING_WHITESAPCE: {
				_trim_trailing_whitespace(current->get_text_edit());
			} break;
			case SEARCH_FIND: {

				current->get_find_replace_bar()->popup_search();
			} break;
			case SEARCH_FIND_NEXT: {

				current->get_find_replace_bar()->search_next();
			} break;
			case SEARCH_FIND_PREV: {

				current->get_find_replace_bar()->search_prev();
			} break;
			case SEARCH_REPLACE: {

				current->get_find_replace_bar()->popup_replace();
			} break;
			case SEARCH_LOCATE_FUNCTION: {

				if (!current)
					return;
				quick_open->popup(current->get_functions());
			} break;
			case SEARCH_GOTO_LINE: {

				goto_line_dialog->popup_find_line(current->get_text_edit());
			} break;
			case DEBUG_TOGGLE_BREAKPOINT: {
				int line = current->get_text_edit()->cursor_get_line();
				bool dobreak = !current->get_text_edit()->is_line_set_as_breakpoint(line);
				current->get_text_edit()->set_line_as_breakpoint(line, dobreak);
				get_debugger()->set_breakpoint(current->get_edited_script()->get_path(), line + 1, dobreak);
			} break;
			case DEBUG_REMOVE_ALL_BREAKPOINTS: {
				List<int> bpoints;
				current->get_text_edit()->get_breakpoints(&bpoints);

				for (List<int>::Element *E = bpoints.front(); E; E = E->next()) {
					int line = E->get();
					bool dobreak = !current->get_text_edit()->is_line_set_as_breakpoint(line);
					current->get_text_edit()->set_line_as_breakpoint(line, dobreak);
					get_debugger()->set_breakpoint(current->get_edited_script()->get_path(), line + 1, dobreak);
				}
			}
			case DEBUG_GOTO_NEXT_BREAKPOINT: {
				List<int> bpoints;
				current->get_text_edit()->get_breakpoints(&bpoints);
				if (bpoints.size() <= 0) {
					return;
				}

				int line = current->get_text_edit()->cursor_get_line();
				// wrap around
				if (line >= bpoints[bpoints.size() - 1]) {
					current->get_text_edit()->cursor_set_line(bpoints[0]);
				} else {
					for (List<int>::Element *E = bpoints.front(); E; E = E->next()) {
						int bline = E->get();
						if (bline > line) {
							current->get_text_edit()->cursor_set_line(bline);
							return;
						}
					}
				}

			} break;
			case DEBUG_GOTO_PREV_BREAKPOINT: {
				List<int> bpoints;
				current->get_text_edit()->get_breakpoints(&bpoints);
				if (bpoints.size() <= 0) {
					return;
				}

				int line = current->get_text_edit()->cursor_get_line();
				// wrap around
				if (line <= bpoints[0]) {
					current->get_text_edit()->cursor_set_line(bpoints[bpoints.size() - 1]);
				} else {
					for (List<int>::Element *E = bpoints.back(); E; E = E->prev()) {
						int bline = E->get();
						if (bline < line) {
							current->get_text_edit()->cursor_set_line(bline);
							return;
						}
					}
				}

			} break;
			case DEBUG_NEXT: {

				if (debugger)
					debugger->debug_next();
			} break;
			case DEBUG_STEP: {

				if (debugger)
					debugger->debug_step();

			} break;
			case DEBUG_BREAK: {

				if (debugger)
					debugger->debug_break();

			} break;
			case DEBUG_CONTINUE: {

				if (debugger)
					debugger->debug_continue();

			} break;
			case HELP_CONTEXTUAL: {
				String text = current->get_text_edit()->get_selection_text();
				if (text == "")
					text = current->get_text_edit()->get_word_under_cursor();
				if (text != "")
					help_search_dialog->popup(text);
			} break;
			case FILE_CLOSE: {
				if (current->get_text_edit()->get_version() != current->get_text_edit()->get_saved_version()) {
					erase_tab_confirm->set_text("Close and save changes?\n\"" + current->get_name() + "\"");
					erase_tab_confirm->popup_centered_minsize();
				} else {
					_close_current_tab();
				}
			} break;
			case CLOSE_DOCS: {
				_close_docs_tab();
			} break;
			case WINDOW_MOVE_LEFT: {

				if (tab_container->get_current_tab() > 0) {
					tab_container->call_deferred("set_current_tab", tab_container->get_current_tab() - 1);
					script_list->call_deferred("select", tab_container->get_current_tab() - 1);
					tab_container->move_child(current, tab_container->get_current_tab() - 1);
					_update_script_names();
				}
			} break;
			case WINDOW_MOVE_RIGHT: {

				if (tab_container->get_current_tab() < tab_container->get_child_count() - 1) {
					tab_container->call_deferred("set_current_tab", tab_container->get_current_tab() + 1);
					script_list->call_deferred("select", tab_container->get_current_tab() + 1);
					tab_container->move_child(current, tab_container->get_current_tab() + 1);
					_update_script_names();
				}

			} break;

			default: {

				if (p_option >= WINDOW_SELECT_BASE) {

					tab_container->set_current_tab(p_option - WINDOW_SELECT_BASE);
					script_list->select(p_option - WINDOW_SELECT_BASE);
				}
			}
		}
	} else {

		EditorHelp *help = tab_container->get_current_tab_control()->cast_to<EditorHelp>();
		if (help) {

			switch (p_option) {

				case SEARCH_FIND: {
					help->popup_search();
				} break;
				case SEARCH_FIND_NEXT: {
					help->search_again();
				} break;
				case FILE_CLOSE: {
					_close_current_tab();
				} break;
				case CLOSE_DOCS: {
					_close_docs_tab();
				} break;
			}
		}
	}
}

void ScriptEditor::_tab_changed(int p_which) {

	ensure_select_current();
}

void ScriptEditor::_notification(int p_what) {

	if (p_what == NOTIFICATION_ENTER_TREE) {

		editor->connect("play_pressed", this, "_editor_play");
		editor->connect("pause_pressed", this, "_editor_pause");
		editor->connect("stop_pressed", this, "_editor_stop");
		editor->connect("script_add_function_request", this, "_add_callback");
		editor->connect("resource_saved", this, "_res_saved_callback");
		script_list->connect("item_selected", this, "_script_selected");
		members_overview->connect("item_selected", this, "_members_overview_selected");
		script_split->connect("dragged", this, "_script_split_dragged");
		autosave_timer->connect("timeout", this, "_autosave_scripts");
		{
			float autosave_time = EditorSettings::get_singleton()->get("text_editor/autosave_interval_secs");
			if (autosave_time > 0) {
				autosave_timer->set_wait_time(autosave_time);
				autosave_timer->start();
			} else {
				autosave_timer->stop();
			}
		}

		EditorSettings::get_singleton()->connect("settings_changed", this, "_editor_settings_changed");
		help_search->set_icon(get_icon("Help", "EditorIcons"));
		site_search->set_icon(get_icon("Godot", "EditorIcons"));
		class_search->set_icon(get_icon("ClassList", "EditorIcons"));

		script_forward->set_icon(get_icon("Forward", "EditorIcons"));
		script_back->set_icon(get_icon("Back", "EditorIcons"));
	}

	if (p_what == NOTIFICATION_READY) {

		get_tree()->connect("tree_changed", this, "_tree_changed");
		editor->connect("request_help", this, "_request_help");
		editor->connect("request_help_search", this, "_help_search");
	}

	if (p_what == NOTIFICATION_EXIT_TREE) {

		editor->disconnect("play_pressed", this, "_editor_play");
		editor->disconnect("pause_pressed", this, "_editor_pause");
		editor->disconnect("stop_pressed", this, "_editor_stop");
	}

	if (p_what == MainLoop::NOTIFICATION_WM_FOCUS_IN) {

		_test_script_times_on_disk();
		_update_modified_scripts_for_external_editor();
	}

	if (p_what == NOTIFICATION_PROCESS) {
	}
}

void ScriptEditor::close_builtin_scripts_from_scene(const String &p_scene) {

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();

		if (ste) {

			Ref<Script> script = ste->get_edited_script();
			if (!script.is_valid())
				continue;

			if (script->get_path().find("::") != -1 && script->get_path().begins_with(p_scene)) { //is an internal script and belongs to scene being closed
				_close_tab(i);
				i--;
			}
		}
	}
}

void ScriptEditor::edited_scene_changed() {

	_update_modified_scripts_for_external_editor();
}

static const Node *_find_node_with_script(const Node *p_node, const RefPtr &p_script) {

	if (p_node->get_script() == p_script)
		return p_node;

	for (int i = 0; i < p_node->get_child_count(); i++) {

		const Node *result = _find_node_with_script(p_node->get_child(i), p_script);
		if (result)
			return result;
	}

	return NULL;
}

Dictionary ScriptEditor::get_state() const {

	//	apply_scripts();

	Dictionary state;
#if 0
	Array paths;
	int open=-1;

	for(int i=0;i<tab_container->get_child_count();i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;


		Ref<Script> script = ste->get_edited_script();
		if (script->get_path()!="" && script->get_path().find("local://")==-1 && script->get_path().find("::")==-1) {

			paths.push_back(script->get_path());
		} else {


			const Node *owner = _find_node_with_script(get_tree()->get_root(),script.get_ref_ptr());
			if (owner)
				paths.push_back(owner->get_path());

		}

		if (i==tab_container->get_current_tab())
			open=i;
	}

	if (paths.size())
		state["sources"]=paths;
	if (open!=-1)
		state["current"]=open;

#endif
	return state;
}
void ScriptEditor::set_state(const Dictionary &p_state) {

#if 0
	print_line("attempt set state: "+String(Variant(p_state)));

	if (!p_state.has("sources"))
		return; //bleh

	Array sources = p_state["sources"];
	for(int i=0;i<sources.size();i++) {

		Variant source=sources[i];

		Ref<Script> script;

		if (source.get_type()==Variant::NODE_PATH) {


			Node *owner=get_tree()->get_root()->get_node(source);
			if (!owner)
				continue;

			script = owner->get_script();
		} else if (source.get_type()==Variant::STRING) {


			script = ResourceLoader::load(source,"Script");
		}


		if (script.is_null()) //ah well..
			continue;

		editor->call("_resource_selected",script);
	}

	if (p_state.has("current")) {
		tab_container->set_current_tab(p_state["current"]);
	}
#endif
}
void ScriptEditor::clear() {
#if 0
	List<ScriptTextEditor*> stes;
	for(int i=0;i<tab_container->get_child_count();i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;
		stes.push_back(ste);

	}

	while(stes.size()) {

		memdelete(stes.front()->get());
		stes.pop_front();
	}

	int idx = tab_container->get_current_tab();
	if (idx>=tab_container->get_child_count())
		idx=tab_container->get_child_count()-1;
	if (idx>=0) {
		tab_container->set_current_tab(idx);
		script_list->select( script_list->find_metadata(idx) );
	}

#endif
}

void ScriptEditor::get_breakpoints(List<String> *p_breakpoints) {

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;

		List<int> bpoints;
		ste->get_text_edit()->get_breakpoints(&bpoints);

		Ref<Script> script = ste->get_edited_script();
		String base = script->get_path();
		ERR_CONTINUE(base.begins_with("local://") || base == "");

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

			p_breakpoints->push_back(base + ":" + itos(E->get() + 1));
		}
	}
}

void ScriptEditor::ensure_focus_current() {

	if (!is_inside_tree())
		return;

	int cidx = tab_container->get_current_tab();
	if (cidx < 0 || cidx >= tab_container->get_tab_count())
		;
	Control *c = tab_container->get_child(cidx)->cast_to<Control>();
	if (!c)
		return;
	ScriptTextEditor *ste = c->cast_to<ScriptTextEditor>();
	if (!ste)
		return;
	ste->get_text_edit()->grab_focus();
}

void ScriptEditor::_members_overview_selected(int p_idx) {
	int line = members_overview->get_item_metadata(p_idx);

	_goto_script_line2(line);

	Node *current = tab_container->get_child(tab_container->get_current_tab());
	ScriptTextEditor *ste = current->cast_to<ScriptTextEditor>();
	if (ste) {
		ste->get_text_edit()->set_v_scroll(line);
	}
	ensure_focus_current();
}

void ScriptEditor::_script_selected(int p_idx) {

	grab_focus_block = !Input::get_singleton()->is_mouse_button_pressed(1); //amazing hack, simply amazing

	_go_to_tab(script_list->get_item_metadata(p_idx));
	grab_focus_block = false;
}

void ScriptEditor::ensure_select_current() {

	if (tab_container->get_child_count() && tab_container->get_current_tab() >= 0) {

		Node *current = tab_container->get_child(tab_container->get_current_tab());

		ScriptTextEditor *ste = current->cast_to<ScriptTextEditor>();
		if (ste) {

			Ref<Script> script = ste->get_edited_script();

			if (!grab_focus_block && is_visible())
				ste->get_text_edit()->grab_focus();

			edit_menu->show();
			search_menu->show();
			script_search_menu->hide();
		}

		EditorHelp *eh = current->cast_to<EditorHelp>();

		if (eh) {
			edit_menu->hide();
			search_menu->hide();
			script_search_menu->show();
		}
	}
}

void ScriptEditor::_find_scripts(Node *p_base, Node *p_current, Set<Ref<Script> > &used) {
	if (p_current != p_base && p_current->get_owner() != p_base)
		return;

	if (p_current->get_script_instance()) {
		Ref<Script> scr = p_current->get_script();
		if (scr.is_valid())
			used.insert(scr);
	}

	for (int i = 0; i < p_current->get_child_count(); i++) {
		_find_scripts(p_base, p_current->get_child(i), used);
	}
}

struct _ScriptEditorItemData {

	String name;
	String sort_key;
	Ref<Texture> icon;
	int index;
	String tooltip;
	bool used;
	int category;

	bool operator<(const _ScriptEditorItemData &id) const {

		return category == id.category ? sort_key < id.sort_key : category < id.category;
	}
};

void ScriptEditor::_update_members_overview_visibility() {
	if (members_overview_enabled) {
		members_overview->set_hidden(false);
	} else {
		members_overview->set_hidden(true);
	}
}

void ScriptEditor::_update_members_overview() {
	members_overview->clear();

	Node *current = tab_container->get_child(tab_container->get_current_tab());
	ScriptTextEditor *ste = tab_container->get_child(tab_container->get_current_tab())->cast_to<ScriptTextEditor>();
	if (!ste) {
		return;
	}

	Vector<String> functions = ste->get_functions();
	for (int i = 0; i < functions.size(); i++) {
		members_overview->add_item(functions[i].get_slice(":", 0));
		members_overview->set_item_metadata(i, functions[i].get_slice(":", 1).to_int() - 1);
	}
}

void ScriptEditor::_update_script_colors() {

	bool script_temperature_enabled = EditorSettings::get_singleton()->get("text_editor/script_temperature_enabled");
	bool highlight_current = EditorSettings::get_singleton()->get("text_editor/highlight_current_script");

	int hist_size = EditorSettings::get_singleton()->get("text_editor/script_temperature_history_size");
	Color hot_color = EditorSettings::get_singleton()->get("text_editor/script_temperature_hot_color");
	Color cold_color = EditorSettings::get_singleton()->get("text_editor/script_temperature_cold_color");

	for (int i = 0; i < script_list->get_item_count(); i++) {

		int c = script_list->get_item_metadata(i);
		Node *n = tab_container->get_child(c);
		if (!n)
			continue;

		script_list->set_item_custom_bg_color(i, Color(0, 0, 0, 0));

		bool current = tab_container->get_current_tab() == c;
		if (current && highlight_current) {
			script_list->set_item_custom_bg_color(i, EditorSettings::get_singleton()->get("text_editor/current_script_background_color"));

		} else if (script_temperature_enabled) {

			if (!n->has_meta("__editor_pass")) {
				continue;
			}

			int pass = n->get_meta("__editor_pass");
			int h = edit_pass - pass;
			if (h > hist_size) {
				continue;
			}
			int non_zero_hist_size = (hist_size == 0) ? 1 : hist_size;
			float v = Math::ease((edit_pass - pass) / float(non_zero_hist_size), 0.4);

			script_list->set_item_custom_bg_color(i, hot_color.linear_interpolate(cold_color, v));
		}
	}
}

void ScriptEditor::_update_script_names() {

	if (restoring_layout)
		return;

	waiting_update_names = false;
	Set<Ref<Script> > used;
	Node *edited = EditorNode::get_singleton()->get_edited_scene();
	if (edited) {
		_find_scripts(edited, edited, used);
	}

	script_list->clear();
	bool split_script_help = EditorSettings::get_singleton()->get("text_editor/group_help_pages");
	ScriptSortBy sort_by = (ScriptSortBy)(int)EditorSettings::get_singleton()->get("text_editor/sort_scripts_by");
	ScriptListName display_as = (ScriptListName)(int)EditorSettings::get_singleton()->get("text_editor/list_script_names_as");

	Vector<_ScriptEditorItemData> sedata;

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (ste) {

			String name = ste->get_name();
			Ref<Texture> icon = ste->get_icon();
			String path = ste->get_edited_script()->get_path();

			_ScriptEditorItemData sd;
			sd.icon = icon;
			sd.name = name;
			sd.tooltip = path;
			sd.index = i;
			sd.used = used.has(ste->get_edited_script());
			sd.category = 0;

			switch (sort_by) {
				case SORT_BY_NAME: {
					sd.sort_key = name.to_lower();
				} break;
				case SORT_BY_PATH: {
					sd.sort_key = path;
				} break;
			}

			switch (display_as) {
				case DISPLAY_NAME: {
					sd.name = name;
				} break;
				case DISPLAY_DIR_AND_NAME: {
					if (!path.get_base_dir().get_file().empty()) {
						sd.name = path.get_base_dir().get_file() + "/" + name;
					} else {
						sd.name = name;
					}
				} break;
				case DISPLAY_FULL_PATH: {
					sd.name = path;
				} break;
			}

			sedata.push_back(sd);
		}

		EditorHelp *eh = tab_container->get_child(i)->cast_to<EditorHelp>();
		if (eh) {

			String name = eh->get_class_name();
			Ref<Texture> icon = get_icon("Help", "EditorIcons");
			String tooltip = name + " Class Reference";

			_ScriptEditorItemData sd;
			sd.icon = icon;
			sd.name = name;
			sd.sort_key = name;
			sd.tooltip = tooltip;
			sd.index = i;
			sd.used = false;
			sd.category = split_script_help ? 1 : 0;
			sedata.push_back(sd);
		}
	}

	sedata.sort();

	for (int i = 0; i < sedata.size(); i++) {

		script_list->add_item(sedata[i].name, sedata[i].icon);
		int index = script_list->get_item_count() - 1;
		script_list->set_item_tooltip(index, sedata[i].tooltip);
		script_list->set_item_metadata(index, sedata[i].index);
		if (sedata[i].used) {

			script_list->set_item_custom_bg_color(index, Color(88 / 255.0, 88 / 255.0, 60 / 255.0));
		}
		if (tab_container->get_current_tab() == sedata[i].index) {
			script_list->select(index);
			script_name_label->set_text(sedata[i].name);
			script_icon->set_texture(sedata[i].icon);
		}
	}

	_update_members_overview();
	_update_script_colors();
}

void ScriptEditor::edit(const Ref<Script> &p_script) {

	if (p_script.is_null())
		return;

	// refuse to open built-in if scene is not loaded

	// see if already has it

	bool open_dominant = EditorSettings::get_singleton()->get("text_editor/open_dominant_script_on_scene_change");

	if (p_script->get_path().is_resource_file() && bool(EditorSettings::get_singleton()->get("external_editor/use_external_editor"))) {

		String path = EditorSettings::get_singleton()->get("external_editor/exec_path");
		String flags = EditorSettings::get_singleton()->get("external_editor/exec_flags");
		List<String> args;
		flags = flags.strip_edges();
		if (flags != String()) {
			Vector<String> flagss = flags.split(" ", false);
			for (int i = 0; i < flagss.size(); i++)
				args.push_back(flagss[i]);
		}

		args.push_back(Globals::get_singleton()->globalize_path(p_script->get_path()));
		Error err = OS::get_singleton()->execute(path, args, false);
		if (err == OK)
			return;
		WARN_PRINT("Couldn't open external text editor, using internal");
	}

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;

		if (ste->get_edited_script() == p_script) {

			if (open_dominant || !EditorNode::get_singleton()->is_changing_scene()) {
				if (tab_container->get_current_tab() != i) {
					_go_to_tab(i);
					script_list->select(script_list->find_metadata(i));
				}
				if (is_visible())
					ste->get_text_edit()->grab_focus();
			}
			return;
		}
	}

	// doesn't have it, make a new one

	ScriptTextEditor *ste = memnew(ScriptTextEditor);
	ste->update_editor_settings();
	ste->set_edited_script(p_script);
	ste->get_text_edit()->set_tooltip_request_func(this, "_get_debug_tooltip", ste);
	ste->get_text_edit()->set_callhint_settings(
			EditorSettings::get_singleton()->get("text_editor/put_callhint_tooltip_below_current_line"),
			EditorSettings::get_singleton()->get("text_editor/callhint_tooltip_offset"));
	ste->get_text_edit()->connect("breakpoint_toggled", this, "_breakpoint_toggled");
	tab_container->add_child(ste);
	_go_to_tab(tab_container->get_tab_count() - 1);

	_update_script_names();
	_save_layout();
	ste->connect("name_changed", this, "_update_script_names");

	//test for modification, maybe the script was not edited but was loaded

	_test_script_times_on_disk(p_script);
	_update_modified_scripts_for_external_editor(p_script);
}

void ScriptEditor::save_all_scripts() {

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;

		if (trim_trailing_whitespace_on_save) {
			_trim_trailing_whitespace(ste->get_text_edit());
		}
		if (ste->get_text_edit()->get_version() == ste->get_text_edit()->get_saved_version())
			continue;

		Ref<Script> script = ste->get_edited_script();
		if (script.is_valid())
			ste->apply_code();

		if (script->get_path() != "" && script->get_path().find("local://") == -1 && script->get_path().find("::") == -1) {
			//external script, save it

			editor->save_resource(script);
			//ResourceSaver::save(script->get_path(),script);
		}
	}
}

void ScriptEditor::apply_scripts() const {

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;
		ste->apply_code();
	}
}

void ScriptEditor::_editor_play() {

	debugger->start();
	debug_menu->get_popup()->grab_focus();
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_NEXT), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_STEP), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_BREAK), false);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_CONTINUE), true);
}

void ScriptEditor::_editor_pause() {
}
void ScriptEditor::_editor_stop() {

	debugger->stop();
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_NEXT), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_STEP), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_BREAK), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_CONTINUE), true);
}

void ScriptEditor::_add_callback(Object *p_obj, const String &p_function, const StringArray &p_args) {

	//print_line("add callback! hohoho"); kinda sad to remove this
	ERR_FAIL_COND(!p_obj);
	Ref<Script> script = p_obj->get_script();
	ERR_FAIL_COND(!script.is_valid());

	editor->push_item(script.ptr());

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;
		if (ste->get_edited_script() != script)
			continue;

		String code = ste->get_text_edit()->get_text();
		int pos = script->get_language()->find_function(p_function, code);
		if (pos == -1) {
			//does not exist
			ste->get_text_edit()->deselect();
			pos = ste->get_text_edit()->get_line_count() + 2;
			String func = script->get_language()->make_function("", p_function, p_args);
			//code=code+func;
			ste->get_text_edit()->cursor_set_line(pos + 1);
			ste->get_text_edit()->cursor_set_column(1000000); //none shall be that big
			ste->get_text_edit()->insert_text_at_cursor("\n\n" + func);
		}

		_go_to_tab(i);
		ste->get_text_edit()->cursor_set_line(pos);
		ste->get_text_edit()->cursor_set_column(1);

		script_list->select(script_list->find_metadata(i));

		break;
	}
}

void ScriptEditor::_save_layout() {

	if (restoring_layout) {
		return;
	}

	editor->save_layout();
}

void ScriptEditor::_editor_settings_changed() {

	trim_trailing_whitespace_on_save = EditorSettings::get_singleton()->get("text_editor/trim_trailing_whitespace_on_save");

	members_overview_enabled = EditorSettings::get_singleton()->get("text_editor/show_members_overview");
	_update_members_overview_visibility();

	float autosave_time = EditorSettings::get_singleton()->get("text_editor/autosave_interval_secs");
	if (autosave_time > 0) {
		autosave_timer->set_wait_time(autosave_time);
		autosave_timer->start();
	} else {
		autosave_timer->stop();
	}

	if (current_theme == "") {
		current_theme = EditorSettings::get_singleton()->get("text_editor/color_theme");
	} else if (current_theme != EditorSettings::get_singleton()->get("text_editor/color_theme")) {
		current_theme = EditorSettings::get_singleton()->get("text_editor/color_theme");
		EditorSettings::get_singleton()->load_text_editor_theme();
	}

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!ste)
			continue;

		ste->update_editor_settings();
	}
	_update_script_colors();
	_update_script_names();

	ScriptServer::set_reload_scripts_on_save(EDITOR_DEF("text_editor/auto_reload_and_parse_scripts_on_save", true));
}

void ScriptEditor::_autosave_scripts() {

	save_all_scripts();
}

void ScriptEditor::_tree_changed() {

	if (waiting_update_names)
		return;

	waiting_update_names = true;
	call_deferred("_update_script_names");
}

void ScriptEditor::_script_split_dragged(float) {

	_save_layout();
}

void ScriptEditor::_unhandled_input(const InputEvent &p_event) {
	if (p_event.key.pressed || !is_visible()) return;
	if (ED_IS_SHORTCUT("script_editor/next_script", p_event)) {
		int next_tab = script_list->get_current() + 1;
		next_tab %= script_list->get_item_count();
		_go_to_tab(script_list->get_item_metadata(next_tab));
		_update_script_names();
	}
	if (ED_IS_SHORTCUT("script_editor/prev_script", p_event)) {
		int next_tab = script_list->get_current() - 1;
		next_tab = next_tab >= 0 ? next_tab : script_list->get_item_count() - 1;
		_go_to_tab(script_list->get_item_metadata(next_tab));
		_update_script_names();
	}
}

void ScriptEditor::set_window_layout(Ref<ConfigFile> p_layout) {

	if (!bool(EDITOR_DEF("text_editor/restore_scripts_on_load", true))) {
		return;
	}

	if (!p_layout->has_section_key("ScriptEditor", "open_scripts") && !p_layout->has_section_key("ScriptEditor", "open_help"))
		return;

	Array scripts = p_layout->get_value("ScriptEditor", "open_scripts");
	Array helps;
	if (p_layout->has_section_key("ScriptEditor", "open_help"))
		helps = p_layout->get_value("ScriptEditor", "open_help");

	restoring_layout = true;

	for (int i = 0; i < scripts.size(); i++) {

		String path = scripts[i];
		if (!FileAccess::exists(path))
			continue;
		Ref<Script> scr = ResourceLoader::load(path);
		if (scr.is_valid()) {
			edit(scr);
		}
	}

	for (int i = 0; i < helps.size(); i++) {

		String path = helps[i];
		if (path == "") { // invalid, skip
			continue;
		}
		_help_class_open(path);
	}

	for (int i = 0; i < tab_container->get_child_count(); i++) {
		tab_container->get_child(i)->set_meta("__editor_pass", Variant());
	}

	if (p_layout->has_section_key("ScriptEditor", "split_offset")) {
		script_split->set_split_offset(p_layout->get_value("ScriptEditor", "split_offset"));
	}

	restoring_layout = false;

	_update_script_names();
}

void ScriptEditor::get_window_layout(Ref<ConfigFile> p_layout) {

	Array scripts;
	Array helps;

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		ScriptTextEditor *ste = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (ste) {

			String path = ste->get_edited_script()->get_path();
			if (!path.is_resource_file())
				continue;

			scripts.push_back(path);
		}

		EditorHelp *eh = tab_container->get_child(i)->cast_to<EditorHelp>();

		if (eh) {

			helps.push_back(eh->get_class_name());
		}
	}

	p_layout->set_value("ScriptEditor", "open_scripts", scripts);
	p_layout->set_value("ScriptEditor", "open_help", helps);
	p_layout->set_value("ScriptEditor", "split_offset", script_split->get_split_offset());
}

void ScriptEditor::_help_class_open(const String &p_class) {

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		EditorHelp *eh = tab_container->get_child(i)->cast_to<EditorHelp>();

		if (eh && eh->get_class_name() == p_class) {

			_go_to_tab(i);
			_update_script_names();
			return;
		}
	}

	EditorHelp *eh = memnew(EditorHelp);

	eh->set_name(p_class);
	tab_container->add_child(eh);
	_go_to_tab(tab_container->get_tab_count() - 1);
	eh->go_to_class(p_class, 0);
	eh->connect("go_to_help", this, "_help_class_goto");
	_update_script_names();
	_save_layout();
}

void ScriptEditor::_help_class_goto(const String &p_desc) {

	String cname = p_desc.get_slice(":", 1);

	for (int i = 0; i < tab_container->get_child_count(); i++) {

		EditorHelp *eh = tab_container->get_child(i)->cast_to<EditorHelp>();

		if (eh && eh->get_class_name() == cname) {

			_go_to_tab(i);
			eh->go_to_help(p_desc);
			_update_script_names();
			return;
		}
	}

	EditorHelp *eh = memnew(EditorHelp);

	eh->set_name(cname);
	tab_container->add_child(eh);
	_go_to_tab(tab_container->get_tab_count() - 1);
	eh->go_to_help(p_desc);
	eh->connect("go_to_help", this, "_help_class_goto");
	_update_script_names();
	_save_layout();
}

void ScriptEditor::_update_history_pos(int p_new_pos) {

	Node *n = tab_container->get_current_tab_control();

	if (n->cast_to<ScriptTextEditor>()) {

		history[history_pos].scroll_pos = n->cast_to<ScriptTextEditor>()->get_text_edit()->get_v_scroll();
		history[history_pos].cursor_column = n->cast_to<ScriptTextEditor>()->get_text_edit()->cursor_get_column();
		history[history_pos].cursor_row = n->cast_to<ScriptTextEditor>()->get_text_edit()->cursor_get_line();
	}
	if (n->cast_to<EditorHelp>()) {

		history[history_pos].scroll_pos = n->cast_to<EditorHelp>()->get_scroll();
	}

	history_pos = p_new_pos;
	tab_container->set_current_tab(history[history_pos].control->get_index());

	n = history[history_pos].control;

	if (n->cast_to<ScriptTextEditor>()) {

		n->cast_to<ScriptTextEditor>()->get_text_edit()->set_v_scroll(history[history_pos].scroll_pos);
		n->cast_to<ScriptTextEditor>()->get_text_edit()->cursor_set_column(history[history_pos].cursor_column);
		n->cast_to<ScriptTextEditor>()->get_text_edit()->cursor_set_line(history[history_pos].cursor_row);
		n->cast_to<ScriptTextEditor>()->get_text_edit()->grab_focus();
	}

	if (n->cast_to<EditorHelp>()) {

		n->cast_to<EditorHelp>()->set_scroll(history[history_pos].scroll_pos);
		n->cast_to<EditorHelp>()->set_focused();
	}

	n->set_meta("__editor_pass", ++edit_pass);
	_update_script_names();
	_update_history_arrows();
}

void ScriptEditor::_history_forward() {

	if (history_pos < history.size() - 1) {
		_update_history_pos(history_pos + 1);
	}
}

void ScriptEditor::_history_back() {

	if (history_pos > 0) {
		_update_history_pos(history_pos - 1);
	}
}
void ScriptEditor::set_scene_root_script(Ref<Script> p_script) {

	bool open_dominant = EditorSettings::get_singleton()->get("text_editor/open_dominant_script_on_scene_change");

	if (bool(EditorSettings::get_singleton()->get("external_editor/use_external_editor")))
		return;

	if (open_dominant && p_script.is_valid() && _can_open_in_editor(p_script.ptr())) {
		edit(p_script);
	}
}

bool ScriptEditor::script_go_to_method(Ref<Script> p_script, const String &p_method) {

	Vector<String> functions;
	bool found = false;

	for (int i = 0; i < tab_container->get_child_count(); i++) {
		ScriptTextEditor *current = tab_container->get_child(i)->cast_to<ScriptTextEditor>();

		if (current && current->get_edited_script() == p_script) {
			functions = current->get_functions();
			found = true;
			break;
		}
	}

	if (!found) {
		String errortxt;
		int line = -1, col;
		String text = p_script->get_source_code();
		List<String> fnc;

		if (p_script->get_language()->validate(text, line, col, errortxt, p_script->get_path(), &fnc)) {

			for (List<String>::Element *E = fnc.front(); E; E = E->next())
				functions.push_back(E->get());
		}
	}

	String method_search = p_method + ":";

	for (int i = 0; i < functions.size(); i++) {
		String function = functions[i];

		if (function.begins_with(method_search)) {

			edit(p_script);
			int line = function.get_slice(":", 1).to_int();
			_goto_script_line2(line - 1);
			return true;
		}
	}

	return false;
}

void ScriptEditor::set_live_auto_reload_running_scripts(bool p_enabled) {

	auto_reload_running_scripts = p_enabled;
}

void ScriptEditor::_bind_methods() {

	ObjectTypeDB::bind_method("_file_dialog_action", &ScriptEditor::_file_dialog_action);
	ObjectTypeDB::bind_method("_tab_changed", &ScriptEditor::_tab_changed);
	ObjectTypeDB::bind_method("_menu_option", &ScriptEditor::_menu_option);
	ObjectTypeDB::bind_method("_close_current_tab", &ScriptEditor::_close_current_tab);
	ObjectTypeDB::bind_method("_close_docs_tab", &ScriptEditor::_close_docs_tab);
	ObjectTypeDB::bind_method("_editor_play", &ScriptEditor::_editor_play);
	ObjectTypeDB::bind_method("_editor_pause", &ScriptEditor::_editor_pause);
	ObjectTypeDB::bind_method("_editor_stop", &ScriptEditor::_editor_stop);
	ObjectTypeDB::bind_method("_add_callback", &ScriptEditor::_add_callback);
	ObjectTypeDB::bind_method("_reload_scripts", &ScriptEditor::_reload_scripts);
	ObjectTypeDB::bind_method("_resave_scripts", &ScriptEditor::_resave_scripts);
	ObjectTypeDB::bind_method("_res_saved_callback", &ScriptEditor::_res_saved_callback);
	ObjectTypeDB::bind_method("_goto_script_line", &ScriptEditor::_goto_script_line);
	ObjectTypeDB::bind_method("_goto_script_line2", &ScriptEditor::_goto_script_line2);
	ObjectTypeDB::bind_method("_breakpoint_toggled", &ScriptEditor::_breakpoint_toggled);
	ObjectTypeDB::bind_method("_breaked", &ScriptEditor::_breaked);
	ObjectTypeDB::bind_method("_show_debugger", &ScriptEditor::_show_debugger);
	ObjectTypeDB::bind_method("_get_debug_tooltip", &ScriptEditor::_get_debug_tooltip);
	ObjectTypeDB::bind_method("_autosave_scripts", &ScriptEditor::_autosave_scripts);
	ObjectTypeDB::bind_method("_editor_settings_changed", &ScriptEditor::_editor_settings_changed);
	ObjectTypeDB::bind_method("_update_script_names", &ScriptEditor::_update_script_names);
	ObjectTypeDB::bind_method("_tree_changed", &ScriptEditor::_tree_changed);
	ObjectTypeDB::bind_method("_members_overview_selected", &ScriptEditor::_members_overview_selected);
	ObjectTypeDB::bind_method("_script_selected", &ScriptEditor::_script_selected);
	ObjectTypeDB::bind_method("_script_created", &ScriptEditor::_script_created);
	ObjectTypeDB::bind_method("_script_split_dragged", &ScriptEditor::_script_split_dragged);
	ObjectTypeDB::bind_method("_help_class_open", &ScriptEditor::_help_class_open);
	ObjectTypeDB::bind_method("_help_class_goto", &ScriptEditor::_help_class_goto);
	ObjectTypeDB::bind_method("_request_help", &ScriptEditor::_help_class_open);
	ObjectTypeDB::bind_method("_history_forward", &ScriptEditor::_history_forward);
	ObjectTypeDB::bind_method("_history_back", &ScriptEditor::_history_back);
	ObjectTypeDB::bind_method("_live_auto_reload_running_scripts", &ScriptEditor::_live_auto_reload_running_scripts);
	ObjectTypeDB::bind_method("_unhandled_input", &ScriptEditor::_unhandled_input);
}

ScriptEditor::ScriptEditor(EditorNode *p_editor) {

	current_theme = "";

	completion_cache = memnew(EditorScriptCodeCompletionCache);
	restoring_layout = false;
	waiting_update_names = false;
	pending_auto_reload = false;
	auto_reload_running_scripts = false;
	members_overview_enabled = true;
	editor = p_editor;

	menu_hb = memnew(HBoxContainer);
	add_child(menu_hb);

	script_split = memnew(HSplitContainer);
	add_child(script_split);
	script_split->set_v_size_flags(SIZE_EXPAND_FILL);

	list_split = memnew(VSplitContainer);
	script_split->add_child(list_split);
	list_split->set_v_size_flags(SIZE_EXPAND_FILL);

	script_list = memnew(ItemList);
	list_split->add_child(script_list);
	script_list->set_custom_minimum_size(Size2(0, 0));
	script_split->set_split_offset(140);
	list_split->set_split_offset(500);

	members_overview = memnew(ItemList);
	list_split->add_child(members_overview);
	members_overview->set_custom_minimum_size(Size2(0, 0));

	tab_container = memnew(TabContainer);
	tab_container->set_tabs_visible(false);
	script_split->add_child(tab_container);

	tab_container->set_h_size_flags(SIZE_EXPAND_FILL);

	ED_SHORTCUT("script_editor/next_script", TTR("Next script"), KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_GREATER);
	ED_SHORTCUT("script_editor/prev_script", TTR("Previous script"), KEY_MASK_CMD | KEY_LESS);
	set_process_unhandled_input(true);

	file_menu = memnew(MenuButton);
	menu_hb->add_child(file_menu);
	file_menu->set_text(TTR("File"));
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/new", TTR("New")), FILE_NEW);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/open", TTR("Open")), FILE_OPEN);
	file_menu->get_popup()->add_separator();
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/save", TTR("Save"), KEY_MASK_ALT | KEY_MASK_CMD | KEY_S), FILE_SAVE);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/save_as", TTR("Save As..")), FILE_SAVE_AS);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/save_all", TTR("Save All"), KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_MASK_ALT | KEY_S), FILE_SAVE_ALL);
	file_menu->get_popup()->add_separator();
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/history_previous", TTR("History Prev"), KEY_MASK_CTRL | KEY_MASK_ALT | KEY_LEFT), WINDOW_PREV);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/history_next", TTR("History Next"), KEY_MASK_CTRL | KEY_MASK_ALT | KEY_RIGHT), WINDOW_NEXT);
	file_menu->get_popup()->add_separator();
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/import_theme", TTR("Import Theme")), FILE_IMPORT_THEME);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/reload_theme", TTR("Reload Theme")), FILE_RELOAD_THEME);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/save_theme", TTR("Save Theme")), FILE_SAVE_THEME);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/save_theme_as", TTR("Save Theme As")), FILE_SAVE_THEME_AS);
	file_menu->get_popup()->add_separator();
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/close_docs", TTR("Close Docs")), CLOSE_DOCS);
	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/close_file", TTR("Close"), KEY_MASK_CMD | KEY_W), FILE_CLOSE);
	file_menu->get_popup()->connect("item_pressed", this, "_menu_option");

	edit_menu = memnew(MenuButton);
	menu_hb->add_child(edit_menu);
	edit_menu->set_text(TTR("Edit"));
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/undo", TTR("Undo"), KEY_MASK_CMD | KEY_Z), EDIT_UNDO);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/redo", TTR("Redo"), KEY_MASK_CMD | KEY_Y), EDIT_REDO);
	edit_menu->get_popup()->add_separator();
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/cut", TTR("Cut"), KEY_MASK_CMD | KEY_X), EDIT_CUT);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/copy", TTR("Copy"), KEY_MASK_CMD | KEY_C), EDIT_COPY);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/paste", TTR("Paste"), KEY_MASK_CMD | KEY_V), EDIT_PASTE);
	edit_menu->get_popup()->add_separator();
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/select_all", TTR("Select All"), KEY_MASK_CMD | KEY_A), EDIT_SELECT_ALL);
	edit_menu->get_popup()->add_separator();
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/move_up", TTR("Move Up"), KEY_MASK_ALT | KEY_UP), EDIT_MOVE_LINE_UP);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/move_down", TTR("Move Down"), KEY_MASK_ALT | KEY_DOWN), EDIT_MOVE_LINE_DOWN);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/indent_left", TTR("Indent Left"), KEY_MASK_ALT | KEY_LEFT), EDIT_INDENT_LEFT);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/indent_right", TTR("Indent Right"), KEY_MASK_ALT | KEY_RIGHT), EDIT_INDENT_RIGHT);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/toggle_comment", TTR("Toggle Comment"), KEY_MASK_CMD | KEY_K), EDIT_TOGGLE_COMMENT);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/clone_down", TTR("Clone Down"), KEY_MASK_CMD | KEY_B), EDIT_CLONE_DOWN);
	edit_menu->get_popup()->add_separator();
#ifdef OSX_ENABLED
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/complete_symbol", TTR("Complete Symbol"), KEY_MASK_CTRL | KEY_SPACE), EDIT_COMPLETE);
#else
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/complete_symbol", TTR("Complete Symbol"), KEY_MASK_CMD | KEY_SPACE), EDIT_COMPLETE);
#endif
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/trim_trailing_whitespace", TTR("Trim Trailing Whitespace"), KEY_MASK_CTRL | KEY_MASK_ALT | KEY_T), EDIT_TRIM_TRAILING_WHITESAPCE);
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/auto_indent", TTR("Auto Indent"), KEY_MASK_CMD | KEY_I), EDIT_AUTO_INDENT);
	edit_menu->get_popup()->connect("item_pressed", this, "_menu_option");
	edit_menu->get_popup()->add_separator();
	edit_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/reload_script_soft", TTR("Soft Reload Script"), KEY_MASK_CMD | KEY_MASK_SHIFT | KEY_R), FILE_TOOL_RELOAD_SOFT);

	search_menu = memnew(MenuButton);
	menu_hb->add_child(search_menu);
	search_menu->set_text(TTR("Search"));
	search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find", TTR("Find.."), KEY_MASK_CMD | KEY_F), SEARCH_FIND);
	search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_next", TTR("Find Next"), KEY_F3), SEARCH_FIND_NEXT);
	search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_previous", TTR("Find Previous"), KEY_MASK_SHIFT | KEY_F3), SEARCH_FIND_PREV);
	search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/replace", TTR("Replace.."), KEY_MASK_CMD | KEY_R), SEARCH_REPLACE);
	search_menu->get_popup()->add_separator();
	search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/goto_function", TTR("Goto Function.."), KEY_MASK_SHIFT | KEY_MASK_CMD | KEY_F), SEARCH_LOCATE_FUNCTION);
	search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/goto_line", TTR("Goto Line.."), KEY_MASK_CMD | KEY_L), SEARCH_GOTO_LINE);
	search_menu->get_popup()->connect("item_pressed", this, "_menu_option");

	script_search_menu = memnew(MenuButton);
	menu_hb->add_child(script_search_menu);
	script_search_menu->set_text(TTR("Search"));
	script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find", TTR("Find.."), KEY_MASK_CMD | KEY_F), SEARCH_FIND);
	script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_next", TTR("Find Next"), KEY_F3), SEARCH_FIND_NEXT);
	script_search_menu->get_popup()->connect("item_pressed", this, "_menu_option");
	script_search_menu->hide();

	debug_menu = memnew(MenuButton);
	menu_hb->add_child(debug_menu);
	debug_menu->set_text(TTR("Debug"));
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/toggle_breakpoint", TTR("Toggle Breakpoint"), KEY_F9), DEBUG_TOGGLE_BREAKPOINT);
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/remove_all_breakpoints", TTR("Remove All Breakpoints"), KEY_MASK_CTRL | KEY_MASK_SHIFT | KEY_F9), DEBUG_REMOVE_ALL_BREAKPOINTS);
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/goto_next_breakpoint", TTR("Goto Next Breakpoint"), KEY_MASK_CTRL | KEY_PERIOD), DEBUG_GOTO_NEXT_BREAKPOINT);
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/goto_previous_breakpoint", TTR("Goto Previous Breakpoint"), KEY_MASK_CTRL | KEY_COMMA), DEBUG_GOTO_PREV_BREAKPOINT);
	debug_menu->get_popup()->add_separator();
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("debugger/step_over", TTR("Step Over"), KEY_F10), DEBUG_NEXT);
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("debugger/step_into", TTR("Step Into"), KEY_F11), DEBUG_STEP);
	debug_menu->get_popup()->add_separator();
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("debugger/break", TTR("Break")), DEBUG_BREAK);
	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("debugger/continue", TTR("Continue")), DEBUG_CONTINUE);
	debug_menu->get_popup()->add_separator();
	//debug_menu->get_popup()->add_check_item("Show Debugger",DEBUG_SHOW);
	debug_menu->get_popup()->add_check_shortcut(ED_SHORTCUT("debugger/keep_debugger_open", TTR("Keep Debugger Open")), DEBUG_SHOW_KEEP_OPEN);
	debug_menu->get_popup()->connect("item_pressed", this, "_menu_option");

	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_NEXT), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_STEP), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_BREAK), true);
	debug_menu->get_popup()->set_item_disabled(debug_menu->get_popup()->get_item_index(DEBUG_CONTINUE), true);

#if 0
	window_menu = memnew( MenuButton );
	menu_hb->add_child(window_menu);
	window_menu->set_text(TTR("Window"));
	window_menu->get_popup()->add_item(TTR("Close"),WINDOW_CLOSE,KEY_MASK_CMD|KEY_W);
	window_menu->get_popup()->add_separator();
	window_menu->get_popup()->add_item(TTR("Move Left"),WINDOW_MOVE_LEFT,KEY_MASK_CMD|KEY_LEFT);
	window_menu->get_popup()->add_item(TTR("Move Right"),WINDOW_MOVE_RIGHT,KEY_MASK_CMD|KEY_RIGHT);
	window_menu->get_popup()->add_separator();
	window_menu->get_popup()->connect("item_pressed", this,"_menu_option");

#endif

	help_menu = memnew(MenuButton);
	menu_hb->add_child(help_menu);
	help_menu->set_text(TTR("Help"));
	help_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/Contextual", TTR("Contextual Help"), KEY_MASK_SHIFT | KEY_F1), HELP_CONTEXTUAL);
	help_menu->get_popup()->connect("item_pressed", this, "_menu_option");

	menu_hb->add_spacer();

	script_icon = memnew(TextureFrame);
	menu_hb->add_child(script_icon);
	script_name_label = memnew(Label);
	menu_hb->add_child(script_name_label);

	script_icon->hide();
	script_name_label->hide();

	menu_hb->add_spacer();

	site_search = memnew(ToolButton);
	site_search->set_text(TTR("Tutorials"));
	site_search->connect("pressed", this, "_menu_option", varray(SEARCH_WEBSITE));
	menu_hb->add_child(site_search);
	site_search->set_tooltip(TTR("Open https://godotengine.org at tutorials section."));

	class_search = memnew(ToolButton);
	class_search->set_text(TTR("Classes"));
	class_search->connect("pressed", this, "_menu_option", varray(SEARCH_CLASSES));
	menu_hb->add_child(class_search);
	class_search->set_tooltip(TTR("Search the class hierarchy."));

	help_search = memnew(ToolButton);
	help_search->set_text(TTR("Search Help"));
	help_search->connect("pressed", this, "_menu_option", varray(SEARCH_HELP));
	menu_hb->add_child(help_search);
	help_search->set_tooltip(TTR("Search the reference documentation."));

	menu_hb->add_child(memnew(VSeparator));

	script_back = memnew(ToolButton);
	script_back->connect("pressed", this, "_history_back");
	menu_hb->add_child(script_back);
	script_back->set_disabled(true);
	script_back->set_tooltip(TTR("Go to previous edited document."));

	script_forward = memnew(ToolButton);
	script_forward->connect("pressed", this, "_history_forward");
	menu_hb->add_child(script_forward);
	script_forward->set_disabled(true);
	script_forward->set_tooltip(TTR("Go to next edited document."));

	tab_container->connect("tab_changed", this, "_tab_changed");

	erase_tab_confirm = memnew(ConfirmationDialog);
	add_child(erase_tab_confirm);
	erase_tab_confirm->connect("confirmed", this, "_close_current_tab");

	script_create_dialog = memnew(ScriptCreateDialog);
	script_create_dialog->set_title(TTR("Create Script"));
	add_child(script_create_dialog);
	script_create_dialog->connect("script_created", this, "_script_created");

	file_dialog_option = -1;
	file_dialog = memnew(EditorFileDialog);
	add_child(file_dialog);
	file_dialog->connect("file_selected", this, "_file_dialog_action");

	goto_line_dialog = memnew(GotoLineDialog);
	add_child(goto_line_dialog);

	debugger = memnew(ScriptEditorDebugger(editor));
	debugger->connect("goto_script_line", this, "_goto_script_line");
	debugger->connect("show_debugger", this, "_show_debugger");

	disk_changed = memnew(ConfirmationDialog);
	{
		VBoxContainer *vbc = memnew(VBoxContainer);
		disk_changed->add_child(vbc);
		disk_changed->set_child_rect(vbc);

		Label *dl = memnew(Label);
		dl->set_text(TTR("The following files are newer on disk.\nWhat action should be taken?:"));
		vbc->add_child(dl);

		disk_changed_list = memnew(Tree);
		vbc->add_child(disk_changed_list);
		disk_changed_list->set_v_size_flags(SIZE_EXPAND_FILL);

		disk_changed->connect("confirmed", this, "_reload_scripts");
		disk_changed->get_ok()->set_text(TTR("Reload"));

		disk_changed->add_button(TTR("Resave"), !OS::get_singleton()->get_swap_ok_cancel(), "resave");
		disk_changed->connect("custom_action", this, "_resave_scripts");
	}

	add_child(disk_changed);

	script_editor = this;

	quick_open = memnew(ScriptEditorQuickOpen);
	add_child(quick_open);

	quick_open->connect("goto_line", this, "_goto_script_line2");

	Button *db = EditorNode::get_singleton()->add_bottom_panel_item(TTR("Debugger"), debugger);
	debugger->set_tool_button(db);

	debugger->connect("breaked", this, "_breaked");

	autosave_timer = memnew(Timer);
	autosave_timer->set_one_shot(false);
	add_child(autosave_timer);

	grab_focus_block = false;

	help_search_dialog = memnew(EditorHelpSearch);
	add_child(help_search_dialog);
	help_search_dialog->connect("go_to_help", this, "_help_class_goto");

	help_index = memnew(EditorHelpIndex);
	add_child(help_index);
	help_index->connect("open_class", this, "_help_class_open");

	history_pos = -1;
	//	debugger_gui->hide();

	edit_pass = 0;
	trim_trailing_whitespace_on_save = false;
}

ScriptEditor::~ScriptEditor() {

	memdelete(completion_cache);
}

void ScriptEditorPlugin::edit(Object *p_object) {

	if (!p_object->cast_to<Script>())
		return;

	script_editor->edit(p_object->cast_to<Script>());
}

bool ScriptEditorPlugin::handles(Object *p_object) const {

	if (p_object->cast_to<Script>()) {

		bool valid = _can_open_in_editor(p_object->cast_to<Script>());

		if (!valid) { //user tried to open it by clicking
			EditorNode::get_singleton()->show_warning(TTR("Built-in scripts can only be edited when the scene they belong to is loaded"));
		}
		return valid;
	}

	return p_object->is_type("Script");
}

void ScriptEditorPlugin::make_visible(bool p_visible) {

	if (p_visible) {
		script_editor->show();
		script_editor->set_process(true);
		script_editor->ensure_select_current();
	} else {

		script_editor->hide();
		script_editor->set_process(false);
	}
}

void ScriptEditorPlugin::selected_notify() {

	script_editor->ensure_select_current();
}

Dictionary ScriptEditorPlugin::get_state() const {

	return script_editor->get_state();
}

void ScriptEditorPlugin::set_state(const Dictionary &p_state) {

	script_editor->set_state(p_state);
}
void ScriptEditorPlugin::clear() {

	script_editor->clear();
}

void ScriptEditorPlugin::save_external_data() {

	script_editor->save_all_scripts();
}

void ScriptEditorPlugin::apply_changes() {

	script_editor->apply_scripts();
}

void ScriptEditorPlugin::restore_global_state() {
}

void ScriptEditorPlugin::save_global_state() {
}

void ScriptEditorPlugin::set_window_layout(Ref<ConfigFile> p_layout) {

	script_editor->set_window_layout(p_layout);
}

void ScriptEditorPlugin::get_window_layout(Ref<ConfigFile> p_layout) {

	script_editor->get_window_layout(p_layout);
}

void ScriptEditorPlugin::get_breakpoints(List<String> *p_breakpoints) {

	return script_editor->get_breakpoints(p_breakpoints);
}

void ScriptEditorPlugin::edited_scene_changed() {

	script_editor->edited_scene_changed();
}

ScriptEditorPlugin::ScriptEditorPlugin(EditorNode *p_node) {

	editor = p_node;
	script_editor = memnew(ScriptEditor(p_node));
	editor->get_viewport()->add_child(script_editor);
	script_editor->set_v_size_flags(Control::SIZE_EXPAND_FILL);

	script_editor->hide();

	EDITOR_DEF("text_editor/auto_reload_scripts_on_external_change", true);
	ScriptServer::set_reload_scripts_on_save(EDITOR_DEF("text_editor/auto_reload_and_parse_scripts_on_save", true));
	EDITOR_DEF("text_editor/open_dominant_script_on_scene_change", true);
	EDITOR_DEF("external_editor/use_external_editor", false);
	EDITOR_DEF("external_editor/exec_path", "");
	EDITOR_DEF("text_editor/script_temperature_enabled", true);
	EDITOR_DEF("text_editor/highlight_current_script", true);
	EDITOR_DEF("text_editor/script_temperature_history_size", 15);
	EDITOR_DEF("text_editor/script_temperature_hot_color", Color(1, 0, 0, 0.3));
	EDITOR_DEF("text_editor/script_temperature_cold_color", Color(0, 0, 1, 0.3));
	EDITOR_DEF("text_editor/current_script_background_color", Color(0.81, 0.81, 0.14, 0.63));
	EDITOR_DEF("text_editor/group_help_pages", true);
	EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::INT, "text_editor/sort_scripts_by", PROPERTY_HINT_ENUM, "Name,Path"));
	EDITOR_DEF("text_editor/sort_scripts_by", 0);
	EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::INT, "text_editor/list_script_names_as", PROPERTY_HINT_ENUM, "Name,Parent Directory And Name,Full Path"));
	EDITOR_DEF("text_editor/list_script_names_as", 0);
	EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::STRING, "external_editor/exec_path", PROPERTY_HINT_GLOBAL_FILE));
	EDITOR_DEF("external_editor/exec_flags", "");
}

ScriptEditorPlugin::~ScriptEditorPlugin() {
}