/*************************************************************************/
/*  script_editor_plugin.cpp                                             */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* 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 "tools/editor/editor_settings.h"
#include "io/resource_loader.h"
#include "io/resource_saver.h"
#include "os/keyboard.h"
#include "os/os.h"
#include "tools/editor/editor_node.h"
#include "tools/editor/script_editor_debugger.h"
#include "globals.h"
#include "os/file_access.h"
#include "scene/main/viewport.h"
#include "os/keyboard.h"
#include "os/input.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;

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

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

//	ScriptEditorBase *se=_se->cast_to<ScriptEditorBase>();

	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) {

	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::_goto_script_line2(int p_line) {

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

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

	current->goto_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<ScriptEditorBase>()) {

			history[history_pos].state=n->cast_to<ScriptEditorBase>()->get_edit_state();
		}
		if (n->cast_to<EditorHelp>()) {

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

	history.resize(history_pos+1);
	ScriptHistory sh;
	sh.control=c;
	sh.state=Variant();

	history.push_back(sh);
	history_pos++;


	tab_container->set_current_tab(p_idx);

	c = tab_container->get_current_tab_control();

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

		script_name_label->set_text(c->cast_to<ScriptEditorBase>()->get_name());
		script_icon->set_texture(c->cast_to<ScriptEditorBase>()->get_icon());
		if (is_visible())
			c->cast_to<ScriptEditorBase>()->ensure_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_selected_editor_menu();
}

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);
	ScriptEditorBase *current = tab_container->get_child(selected)->cast_to<ScriptEditorBase>();
	if (current) {
		apply_scripts();
		if (current->get_edit_menu()) {
			memdelete(current->get_edit_menu());
		}
	}

	//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();
	_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 *se = tab_container->get_child(i)->cast_to<EditorHelp>();

		if (se) {
			_close_tab(i);
		}

	}

}



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

	apply_scripts();

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

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (!se)
			continue;


		Ref<Script> script = se->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) {
			se->trim_trailing_whitespace();
		}
		editor->save_resource(script);
		se->tag_saved_version();
	}

	disk_changed->hide();

}

void ScriptEditor::_reload_scripts(){



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

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (!se) {

			continue;
		}


		Ref<Script> script = se->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();
		se->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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (!se) {

			continue;
		}


		Ref<Script> script = se->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) {

			se->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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (se) {

			Ref<Script> script = se->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 || se->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::_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 *se = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
				if (!se)
					continue;


				Ref<Script> script = se->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;

	ScriptEditorBase *current = tab_container->get_child(selected)->cast_to<ScriptEditorBase>();
	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)
					current->trim_trailing_whitespace();
				editor->save_resource( current->get_edited_script() );

			} break;
			case FILE_SAVE_AS: {

				current->trim_trailing_whitespace();
				editor->push_item(current->get_edited_script()->cast_to<Object>());
				editor->save_resource_as( current->get_edited_script() );

			} break;

			case FILE_TOOL_RELOAD:
			case FILE_TOOL_RELOAD_SOFT: {

				current->reload(p_option==FILE_TOOL_RELOAD_SOFT);

			} break;

			case FILE_CLOSE: {
				if (current->is_unsaved()) {
					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 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 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);

				}
			}
		}
	}

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

		switch(p_option) {

			case HELP_SEARCH_FIND: {
				help->popup_search();
			} break;
			case HELP_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");
		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");
	}

	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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();

		if (se) {

			Ref<Script> script = se->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 *se = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!se)
			continue;


		Ref<Script> script = se->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 *se = tab_container->get_child(i)->cast_to<ScriptTextEditor>();
		if (!se)
			continue;
		stes.push_back(se);

	}

	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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (!se)
			continue;

		List<int> bpoints;
		se->get_breakpoints(&bpoints);
		Ref<Script> script = se->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;
	ScriptEditorBase *se = c->cast_to<ScriptEditorBase>();
	if (!se)
		return;
	se->ensure_focus();
}

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());


		ScriptEditorBase *se = current->cast_to<ScriptEditorBase>();
		if (se) {

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

			if (!grab_focus_block && is_visible())
				se->ensure_focus();


			//edit_menu->show();
			//search_menu->show();


		}

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

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

		}
	}

	_update_selected_editor_menu();



}

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


	bool operator<(const _ScriptEditorItemData& id) const {

		return category==id.category?name.nocasecmp_to(id.name)<0:category<id.category;
	}

};


void ScriptEditor::_update_script_colors() {

	bool enabled = EditorSettings::get_singleton()->get("text_editor/script_temperature_enabled");
	if (!enabled)
		return;

	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));
		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");

	Vector<_ScriptEditorItemData> sedata;

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


		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (se) {

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

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

			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.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_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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (!se)
			continue;

		if (se->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())
					se->ensure_focus();
			}
			return;
		}
	}

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

	ScriptEditorBase *se;

	for(int i=script_editor_func_count-1;i>=0;i--) {
		se = script_editor_funcs[i](p_script);
		if (se)
			break;
	}
	ERR_FAIL_COND(!se);
	tab_container->add_child(se);
	se->set_edited_script(p_script);
	se->set_tooltip_request_func("_get_debug_tooltip",this);
	if (se->get_edit_menu()) {
		se->get_edit_menu()->hide();
		menu_hb->add_child(se->get_edit_menu());
		menu_hb->move_child(se->get_edit_menu(),1);
	}


	_go_to_tab(tab_container->get_tab_count()-1);





	_update_script_names();
	_save_layout();
	se->connect("name_changed",this,"_update_script_names");
	se->connect("request_help_search",this,"_help_search");


	//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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (!se)
			continue;


		if (!se->is_unsaved())
			continue;

		if (trim_trailing_whitespace_on_save) {
			se->trim_trailing_whitespace();
		}

		Ref<Script> script = se->get_edited_script();
		if (script.is_valid())
			se->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++) {

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

}

void ScriptEditor::_editor_play() {

	debugger->start();
	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 );

    //debugger_gui->start_listening(Globals::get_singleton()->get("debug/debug_port"));
}

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++) {

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

		se->add_callback(p_function,p_args);

		_go_to_tab(i);

		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");
	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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (!se)
			continue;

		se->update_settings();
	}

	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];
		_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++) {

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (se) {

			String path = se->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_selected_editor_menu() {

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

		bool current = tab_container->get_current_tab() == i;

		ScriptEditorBase *se = tab_container->get_child(i)->cast_to<ScriptEditorBase>();
		if (se && se->get_edit_menu()) {

			if (current)
				se->get_edit_menu()->show();
			else
				se->get_edit_menu()->hide();
		}

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

		if (eh) {

			if (current)
				script_search_menu->show();
			else
				script_search_menu->hide();
		}


	}

}

void ScriptEditor::_update_history_pos(int p_new_pos) {

	Node *n = tab_container->get_current_tab_control();

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

		history[history_pos].state=n->cast_to<ScriptEditorBase>()->get_edit_state();
	}
	if (n->cast_to<EditorHelp>()) {

		history[history_pos].state=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<ScriptEditorBase>()) {

		n->cast_to<ScriptEditorBase>()->set_edit_state(history[history_pos].state);
		n->cast_to<ScriptEditorBase>()->ensure_focus();
	}

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

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

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

}

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) {


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

		if (current && current->get_edited_script()==p_script) {
			if (current->goto_method(p_method)) {
				edit(p_script);
				return true;
			}
			break;
		}
	}
	return false;
}

void ScriptEditor::set_live_auto_reload_running_scripts(bool p_enabled) {

	auto_reload_running_scripts=p_enabled;
}

void ScriptEditor::_help_search(String p_text) {
	help_search_dialog->popup(p_text);
}


int ScriptEditor::script_editor_func_count=0;
CreateScriptEditorFunc ScriptEditor::script_editor_funcs[ScriptEditor::SCRIPT_EDITOR_FUNC_MAX];

void ScriptEditor::register_create_script_editor_function(CreateScriptEditorFunc p_func) {

	ERR_FAIL_COND(script_editor_func_count==SCRIPT_EDITOR_FUNC_MAX);
	script_editor_funcs[script_editor_func_count++]=p_func;
}

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("_help_search",&ScriptEditor::_help_search);


	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("_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;
	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);

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

	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/reload_script_soft", TTR("Soft Reload Script"), KEY_MASK_CMD|KEY_MASK_SHIFT|KEY_R), FILE_TOOL_RELOAD_SOFT);
	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");



	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), HELP_SEARCH_FIND);
	script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_next", TTR("Find Next"), KEY_F3), HELP_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_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


	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");


	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;


	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/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/group_help_pages",true);
	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()
{
}