Merge pull request #40277 from hinlopen/refactor-project-settings

Extract remaining tabs from the ProjectSettingsEditor

editor/input_map_editor.cpp

@@ -0,0 +1,1048 @@
+/*************************************************************************/
+/*  input_map_editor.cpp                                                 */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 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 "input_map_editor.h"
+
+#include "core/input/input_map.h"
+#include "core/os/keyboard.h"
+#include "editor/editor_node.h"
+#include "editor/editor_scale.h"
+
+static const char *_button_descriptions[JOY_SDL_BUTTONS] = {
+	"Face Bottom, DualShock Cross, Xbox A, Nintendo B",
+	"Face Right, DualShock Circle, Xbox B, Nintendo A",
+	"Face Left, DualShock Square, Xbox X, Nintendo Y",
+	"Face Top, DualShock Triangle, Xbox Y, Nintendo X",
+	"DualShock Select, Xbox Back, Nintendo -",
+	"Home, DualShock PS, Guide",
+	"Start, Nintendo +",
+	"Left Stick, DualShock L3, Xbox L/LS",
+	"Right Stick, DualShock R3, Xbox R/RS",
+	"Left Shoulder, DualShock L1, Xbox LB",
+	"Right Shoulder, DualShock R1, Xbox RB",
+	"D-Pad Up",
+	"D-Pad Down",
+	"D-Pad Left",
+	"D-Pad Right"
+};
+
+static const char *_axis_descriptions[JOY_AXIS_MAX * 2] = {
+	"Left Stick Left",
+	"Left Stick Right",
+	"Left Stick Up",
+	"Left Stick Down",
+	"Right Stick Left",
+	"Right Stick Right",
+	"Right Stick Up",
+	"Right Stick Down",
+	"Joystick 2 Left",
+	"Joystick 2 Right, Left Trigger, L2, LT",
+	"Joystick 2 Up",
+	"Joystick 2 Down, Right Trigger, R2, RT",
+	"Joystick 3 Left",
+	"Joystick 3 Right",
+	"Joystick 3 Up",
+	"Joystick 3 Down",
+	"Joystick 4 Left",
+	"Joystick 4 Right",
+	"Joystick 4 Up",
+	"Joystick 4 Down",
+};
+
+void InputMapEditor::_notification(int p_what) {
+	switch (p_what) {
+		case NOTIFICATION_ENTER_TREE: {
+			action_add_error->add_theme_color_override("font_color", input_editor->get_theme_color("error_color", "Editor"));
+			popup_add->add_icon_item(input_editor->get_theme_icon("Keyboard", "EditorIcons"), TTR("Key"), INPUT_KEY);
+			popup_add->add_icon_item(input_editor->get_theme_icon("KeyboardPhysical", "EditorIcons"), TTR("Physical Key"), INPUT_KEY_PHYSICAL);
+			popup_add->add_icon_item(input_editor->get_theme_icon("JoyButton", "EditorIcons"), TTR("Joy Button"), INPUT_JOY_BUTTON);
+			popup_add->add_icon_item(input_editor->get_theme_icon("JoyAxis", "EditorIcons"), TTR("Joy Axis"), INPUT_JOY_MOTION);
+			popup_add->add_icon_item(input_editor->get_theme_icon("Mouse", "EditorIcons"), TTR("Mouse Button"), INPUT_MOUSE_BUTTON);
+			_update_actions();
+		} break;
+		case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
+			action_add_error->add_theme_color_override("font_color", input_editor->get_theme_color("error_color", "Editor"));
+			popup_add->set_item_icon(popup_add->get_item_index(INPUT_KEY), input_editor->get_theme_icon("Keyboard", "EditorIcons"));
+			popup_add->set_item_icon(popup_add->get_item_index(INPUT_KEY_PHYSICAL), input_editor->get_theme_icon("KeyboardPhysical", "EditorIcons"));
+			popup_add->set_item_icon(popup_add->get_item_index(INPUT_JOY_BUTTON), input_editor->get_theme_icon("JoyButton", "EditorIcons"));
+			popup_add->set_item_icon(popup_add->get_item_index(INPUT_JOY_MOTION), input_editor->get_theme_icon("JoyAxis", "EditorIcons"));
+			popup_add->set_item_icon(popup_add->get_item_index(INPUT_MOUSE_BUTTON), input_editor->get_theme_icon("Mouse", "EditorIcons"));
+			_update_actions();
+		} break;
+	}
+}
+
+static bool _validate_action_name(const String &p_name) {
+	const CharType *cstr = p_name.c_str();
+	for (int i = 0; cstr[i]; i++) {
+		if (cstr[i] == '/' || cstr[i] == ':' || cstr[i] == '"' ||
+				cstr[i] == '=' || cstr[i] == '\\' || cstr[i] < 32) {
+			return false;
+		}
+	}
+	return true;
+}
+
+void InputMapEditor::_action_selected() {
+	TreeItem *ti = input_editor->get_selected();
+	if (!ti || !ti->is_editable(0)) {
+		return;
+	}
+
+	add_at = "input/" + ti->get_text(0);
+	edit_idx = -1;
+}
+
+void InputMapEditor::_action_edited() {
+	TreeItem *ti = input_editor->get_selected();
+	if (!ti) {
+		return;
+	}
+
+	if (input_editor->get_selected_column() == 0) {
+		String new_name = ti->get_text(0);
+		String old_name = add_at.substr(add_at.find("/") + 1, add_at.length());
+
+		if (new_name == old_name) {
+			return;
+		}
+
+		if (new_name == "" || !_validate_action_name(new_name)) {
+			ti->set_text(0, old_name);
+			add_at = "input/" + old_name;
+
+			message->set_text(TTR("Invalid action name. it cannot be empty nor contain '/', ':', '=', '\\' or '\"'"));
+			message->popup_centered(Size2(300, 100) * EDSCALE);
+			return;
+		}
+
+		String action_prop = "input/" + new_name;
+
+		if (ProjectSettings::get_singleton()->has_setting(action_prop)) {
+			ti->set_text(0, old_name);
+			add_at = "input/" + old_name;
+
+			message->set_text(vformat(TTR("An action with the name '%s' already exists."), new_name));
+			message->popup_centered(Size2(300, 100) * EDSCALE);
+			return;
+		}
+
+		int order = ProjectSettings::get_singleton()->get_order(add_at);
+		Dictionary action = ProjectSettings::get_singleton()->get(add_at);
+
+		setting = true;
+		undo_redo->create_action(TTR("Rename Input Action Event"));
+		undo_redo->add_do_method(ProjectSettings::get_singleton(), "clear", add_at);
+		undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", action_prop, action);
+		undo_redo->add_do_method(ProjectSettings::get_singleton(), "set_order", action_prop, order);
+		undo_redo->add_undo_method(ProjectSettings::get_singleton(), "clear", action_prop);
+		undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", add_at, action);
+		undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set_order", add_at, order);
+		undo_redo->add_do_method(this, "_update_actions");
+		undo_redo->add_undo_method(this, "_update_actions");
+		undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+		undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+		undo_redo->commit_action();
+		setting = false;
+
+		add_at = action_prop;
+	} else if (input_editor->get_selected_column() == 1) {
+		String name = "input/" + ti->get_text(0);
+		Dictionary old_action = ProjectSettings::get_singleton()->get(name);
+		Dictionary new_action = old_action.duplicate();
+		new_action["deadzone"] = ti->get_range(1);
+
+		undo_redo->create_action(TTR("Change Action deadzone"));
+		undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, new_action);
+		undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+		undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_action);
+		undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+		undo_redo->commit_action();
+	}
+}
+
+void InputMapEditor::_device_input_add() {
+	Ref<InputEvent> ie;
+	String name = add_at;
+	int idx = edit_idx;
+	Dictionary old_val = ProjectSettings::get_singleton()->get(name);
+	Dictionary action = old_val.duplicate();
+	Array events = action["events"];
+
+	switch (add_type) {
+		case INPUT_MOUSE_BUTTON: {
+			Ref<InputEventMouseButton> mb;
+			mb.instance();
+			mb->set_button_index(device_index->get_selected() + 1);
+			mb->set_device(_get_current_device());
+
+			for (int i = 0; i < events.size(); i++) {
+				Ref<InputEventMouseButton> aie = events[i];
+				if (aie.is_null()) {
+					continue;
+				}
+				if (aie->get_device() == mb->get_device() && aie->get_button_index() == mb->get_button_index()) {
+					return;
+				}
+			}
+
+			ie = mb;
+
+		} break;
+		case INPUT_JOY_MOTION: {
+			Ref<InputEventJoypadMotion> jm;
+			jm.instance();
+			jm->set_axis(device_index->get_selected() >> 1);
+			jm->set_axis_value((device_index->get_selected() & 1) ? 1 : -1);
+			jm->set_device(_get_current_device());
+
+			for (int i = 0; i < events.size(); i++) {
+				Ref<InputEventJoypadMotion> aie = events[i];
+				if (aie.is_null()) {
+					continue;
+				}
+
+				if (aie->get_device() == jm->get_device() && aie->get_axis() == jm->get_axis() && aie->get_axis_value() == jm->get_axis_value()) {
+					return;
+				}
+			}
+
+			ie = jm;
+
+		} break;
+		case INPUT_JOY_BUTTON: {
+			Ref<InputEventJoypadButton> jb;
+			jb.instance();
+
+			jb->set_button_index(device_index->get_selected());
+			jb->set_device(_get_current_device());
+
+			for (int i = 0; i < events.size(); i++) {
+				Ref<InputEventJoypadButton> aie = events[i];
+				if (aie.is_null()) {
+					continue;
+				}
+				if (aie->get_device() == jb->get_device() && aie->get_button_index() == jb->get_button_index()) {
+					return;
+				}
+			}
+			ie = jb;
+
+		} break;
+		default: {
+		}
+	}
+
+	if (idx < 0 || idx >= events.size()) {
+		events.push_back(ie);
+	} else {
+		events[idx] = ie;
+	}
+	action["events"] = events;
+
+	undo_redo->create_action(TTR("Add Input Action Event"));
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
+	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_val);
+	undo_redo->add_do_method(this, "_update_actions");
+	undo_redo->add_undo_method(this, "_update_actions");
+	undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+	undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+	undo_redo->commit_action();
+
+	_show_last_added(ie, name);
+}
+
+void InputMapEditor::_set_current_device(int i_device) {
+	device_id->select(i_device + 1);
+}
+
+int InputMapEditor::_get_current_device() {
+	return device_id->get_selected() - 1;
+}
+
+String InputMapEditor::_get_device_string(int i_device) {
+	if (i_device == InputMap::ALL_DEVICES) {
+		return TTR("All Devices");
+	}
+	return TTR("Device") + " " + itos(i_device);
+}
+
+void InputMapEditor::_press_a_key_confirm() {
+	if (last_wait_for_key.is_null()) {
+		return;
+	}
+
+	Ref<InputEventKey> ie;
+	ie.instance();
+	if (press_a_key_physical) {
+		ie->set_physical_keycode(last_wait_for_key->get_physical_keycode());
+		ie->set_keycode(0);
+	} else {
+		ie->set_physical_keycode(0);
+		ie->set_keycode(last_wait_for_key->get_keycode());
+	}
+	ie->set_shift(last_wait_for_key->get_shift());
+	ie->set_alt(last_wait_for_key->get_alt());
+	ie->set_control(last_wait_for_key->get_control());
+	ie->set_metakey(last_wait_for_key->get_metakey());
+
+	String name = add_at;
+	int idx = edit_idx;
+
+	Dictionary old_val = ProjectSettings::get_singleton()->get(name);
+	Dictionary action = old_val.duplicate();
+	Array events = action["events"];
+
+	for (int i = 0; i < events.size(); i++) {
+		Ref<InputEventKey> aie = events[i];
+		if (aie.is_null()) {
+			continue;
+		}
+		if (!press_a_key_physical) {
+			if (aie->get_keycode_with_modifiers() == ie->get_keycode_with_modifiers()) {
+				return;
+			}
+		} else {
+			if (aie->get_physical_keycode_with_modifiers() == ie->get_physical_keycode_with_modifiers()) {
+				return;
+			}
+		}
+	}
+
+	if (idx < 0 || idx >= events.size()) {
+		events.push_back(ie);
+	} else {
+		events[idx] = ie;
+	}
+	action["events"] = events;
+
+	undo_redo->create_action(TTR("Add Input Action Event"));
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
+	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_val);
+	undo_redo->add_do_method(this, "_update_actions");
+	undo_redo->add_undo_method(this, "_update_actions");
+	undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+	undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+	undo_redo->commit_action();
+
+	_show_last_added(ie, name);
+}
+
+void InputMapEditor::_show_last_added(const Ref<InputEvent> &p_event, const String &p_name) {
+	TreeItem *r = input_editor->get_root();
+
+	String name = p_name;
+	name.erase(0, 6);
+	if (!r) {
+		return;
+	}
+	r = r->get_children();
+	if (!r) {
+		return;
+	}
+	bool found = false;
+	while (r) {
+		if (r->get_text(0) != name) {
+			r = r->get_next();
+			continue;
+		}
+		TreeItem *child = r->get_children();
+		while (child) {
+			Variant input = child->get_meta("__input");
+			if (p_event == input) {
+				r->set_collapsed(false);
+				child->select(0);
+				found = true;
+				break;
+			}
+			child = child->get_next();
+		}
+		if (found) {
+			break;
+		}
+		r = r->get_next();
+	}
+
+	if (found) {
+		input_editor->ensure_cursor_is_visible();
+	}
+}
+
+void InputMapEditor::_wait_for_key(const Ref<InputEvent> &p_event) {
+	Ref<InputEventKey> k = p_event;
+
+	if (k.is_valid() && k->is_pressed() && k->get_keycode() != 0) {
+		last_wait_for_key = p_event;
+		const String str = (press_a_key_physical) ? keycode_get_string(k->get_physical_keycode_with_modifiers()) + TTR(" (Physical)") : keycode_get_string(k->get_keycode_with_modifiers());
+
+		press_a_key_label->set_text(str);
+		press_a_key->get_ok()->set_disabled(false);
+		press_a_key->set_input_as_handled();
+	}
+}
+
+void InputMapEditor::_edit_item(Ref<InputEvent> p_exiting_event) {
+	InputType ie_type;
+
+	if ((Ref<InputEventKey>(p_exiting_event)).is_valid()) {
+		if ((Ref<InputEventKey>(p_exiting_event))->get_keycode() != 0) {
+			ie_type = INPUT_KEY;
+		} else {
+			ie_type = INPUT_KEY_PHYSICAL;
+		}
+	} else if ((Ref<InputEventJoypadButton>(p_exiting_event)).is_valid()) {
+		ie_type = INPUT_JOY_BUTTON;
+	} else if ((Ref<InputEventMouseButton>(p_exiting_event)).is_valid()) {
+		ie_type = INPUT_MOUSE_BUTTON;
+	} else if ((Ref<InputEventJoypadMotion>(p_exiting_event)).is_valid()) {
+		ie_type = INPUT_JOY_MOTION;
+	} else {
+		return;
+	}
+
+	_add_item(ie_type, p_exiting_event);
+}
+
+void InputMapEditor::_add_item(int p_item, Ref<InputEvent> p_exiting_event) {
+	add_type = InputType(p_item);
+
+	switch (add_type) {
+		case INPUT_KEY: {
+			press_a_key_physical = false;
+			press_a_key_label->set_text(TTR("Press a Key..."));
+			press_a_key->get_ok()->set_disabled(true);
+			last_wait_for_key = Ref<InputEvent>();
+			press_a_key->popup_centered(Size2(250, 80) * EDSCALE);
+			//press_a_key->grab_focus();
+
+		} break;
+		case INPUT_KEY_PHYSICAL: {
+			press_a_key_physical = true;
+			press_a_key_label->set_text(TTR("Press a Key..."));
+
+			last_wait_for_key = Ref<InputEvent>();
+			press_a_key->popup_centered(Size2(250, 80) * EDSCALE);
+			press_a_key->grab_focus();
+
+		} break;
+		case INPUT_MOUSE_BUTTON: {
+			device_index_label->set_text(TTR("Mouse Button Index:"));
+			device_index->clear();
+			device_index->add_item(TTR("Left Button"));
+			device_index->add_item(TTR("Right Button"));
+			device_index->add_item(TTR("Middle Button"));
+			device_index->add_item(TTR("Wheel Up Button"));
+			device_index->add_item(TTR("Wheel Down Button"));
+			device_index->add_item(TTR("Wheel Left Button"));
+			device_index->add_item(TTR("Wheel Right Button"));
+			device_index->add_item(TTR("X Button 1"));
+			device_index->add_item(TTR("X Button 2"));
+			device_input->popup_centered(Size2(350, 95) * EDSCALE);
+
+			Ref<InputEventMouseButton> mb = p_exiting_event;
+			if (mb.is_valid()) {
+				device_index->select(mb->get_button_index() - 1);
+				_set_current_device(mb->get_device());
+				device_input->get_ok()->set_text(TTR("Change"));
+			} else {
+				_set_current_device(0);
+				device_input->get_ok()->set_text(TTR("Add"));
+			}
+
+		} break;
+		case INPUT_JOY_MOTION: {
+			device_index_label->set_text(TTR("Joypad Axis Index:"));
+			device_index->clear();
+			for (int i = 0; i < JOY_AXIS_MAX * 2; i++) {
+				String desc = TTR("Axis") + " " + itos(i / 2) + " " + ((i & 1) ? "+" : "-") +
+							  " (" + TTR(_axis_descriptions[i]) + ")";
+				device_index->add_item(desc);
+			}
+			device_input->popup_centered(Size2(350, 95) * EDSCALE);
+
+			Ref<InputEventJoypadMotion> jm = p_exiting_event;
+			if (jm.is_valid()) {
+				device_index->select(jm->get_axis() * 2 + (jm->get_axis_value() > 0 ? 1 : 0));
+				_set_current_device(jm->get_device());
+				device_input->get_ok()->set_text(TTR("Change"));
+			} else {
+				_set_current_device(0);
+				device_input->get_ok()->set_text(TTR("Add"));
+			}
+
+		} break;
+		case INPUT_JOY_BUTTON: {
+			device_index_label->set_text(TTR("Joypad Button Index:"));
+			device_index->clear();
+			for (int i = 0; i < JOY_BUTTON_MAX; i++) {
+				String desc = TTR("Button") + " " + itos(i);
+				if (i < JOY_SDL_BUTTONS) {
+					desc += " (" + TTR(_button_descriptions[i]) + ")";
+				}
+				device_index->add_item(desc);
+			}
+			device_input->popup_centered(Size2(350, 95) * EDSCALE);
+
+			Ref<InputEventJoypadButton> jb = p_exiting_event;
+			if (jb.is_valid()) {
+				device_index->select(jb->get_button_index());
+				_set_current_device(jb->get_device());
+				device_input->get_ok()->set_text(TTR("Change"));
+			} else {
+				_set_current_device(0);
+				device_input->get_ok()->set_text(TTR("Add"));
+			}
+
+		} break;
+		default: {
+		}
+	}
+}
+
+void InputMapEditor::_action_activated() {
+	TreeItem *ti = input_editor->get_selected();
+
+	if (!ti || ti->get_parent() == input_editor->get_root()) {
+		return;
+	}
+
+	String name = "input/" + ti->get_parent()->get_text(0);
+	Dictionary action = ProjectSettings::get_singleton()->get(name);
+	Array events = action["events"];
+	int idx = ti->get_metadata(0);
+
+	ERR_FAIL_INDEX(idx, events.size());
+	Ref<InputEvent> event = events[idx];
+	if (event.is_null()) {
+		return;
+	}
+
+	add_at = name;
+	edit_idx = idx;
+	_edit_item(event);
+}
+
+void InputMapEditor::_action_button_pressed(Object *p_obj, int p_column, int p_id) {
+	TreeItem *ti = Object::cast_to<TreeItem>(p_obj);
+
+	ERR_FAIL_COND(!ti);
+
+	if (p_id == 1) {
+		// Add action event
+		Point2 ofs = input_editor->get_global_position();
+		Rect2 ir = input_editor->get_item_rect(ti);
+		ir.position.y -= input_editor->get_scroll().y;
+		ofs += ir.position + ir.size;
+		ofs.x -= 100;
+		popup_add->set_position(ofs);
+		popup_add->popup();
+		add_at = "input/" + ti->get_text(0);
+		edit_idx = -1;
+
+	} else if (p_id == 2) {
+		// Remove
+
+		if (ti->get_parent() == input_editor->get_root()) {
+			// Remove action
+			String name = "input/" + ti->get_text(0);
+			Dictionary old_val = ProjectSettings::get_singleton()->get(name);
+			int order = ProjectSettings::get_singleton()->get_order(name);
+
+			undo_redo->create_action(TTR("Erase Input Action"));
+			undo_redo->add_do_method(ProjectSettings::get_singleton(), "clear", name);
+			undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_val);
+			undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set_order", name, order);
+			undo_redo->add_do_method(this, "_update_actions");
+			undo_redo->add_undo_method(this, "_update_actions");
+			undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+			undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+			undo_redo->commit_action();
+
+		} else {
+			// Remove action event
+			String name = "input/" + ti->get_parent()->get_text(0);
+			Dictionary old_val = ProjectSettings::get_singleton()->get(name);
+			Dictionary action = old_val.duplicate();
+			int idx = ti->get_metadata(0);
+
+			Array events = action["events"];
+			ERR_FAIL_INDEX(idx, events.size());
+			events.remove(idx);
+			action["events"] = events;
+
+			undo_redo->create_action(TTR("Erase Input Action Event"));
+			undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
+			undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_val);
+			undo_redo->add_do_method(this, "_update_actions");
+			undo_redo->add_undo_method(this, "_update_actions");
+			undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+			undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+			undo_redo->commit_action();
+		}
+	} else if (p_id == 3) {
+		// Edit
+
+		if (ti->get_parent() == input_editor->get_root()) {
+			// Edit action name
+			ti->set_as_cursor(0);
+			input_editor->edit_selected();
+
+		} else {
+			// Edit action event
+			String name = "input/" + ti->get_parent()->get_text(0);
+			int idx = ti->get_metadata(0);
+			Dictionary action = ProjectSettings::get_singleton()->get(name);
+
+			Array events = action["events"];
+			ERR_FAIL_INDEX(idx, events.size());
+
+			Ref<InputEvent> event = events[idx];
+
+			if (event.is_null()) {
+				return;
+			}
+
+			ti->set_as_cursor(0);
+			add_at = name;
+			edit_idx = idx;
+			_edit_item(event);
+		}
+	}
+}
+
+void InputMapEditor::_update_actions() {
+	if (setting) {
+		return;
+	}
+
+	Map<String, bool> collapsed;
+
+	if (input_editor->get_root() && input_editor->get_root()->get_children()) {
+		for (TreeItem *item = input_editor->get_root()->get_children(); item; item = item->get_next()) {
+			collapsed[item->get_text(0)] = item->is_collapsed();
+		}
+	}
+
+	input_editor->clear();
+	TreeItem *root = input_editor->create_item();
+	input_editor->set_hide_root(true);
+
+	List<PropertyInfo> props;
+	ProjectSettings::get_singleton()->get_property_list(&props);
+	for (List<PropertyInfo>::Element *E = props.front(); E; E = E->next()) {
+		const String property_name = E->get().name;
+
+		if (!property_name.begins_with("input/")) {
+			continue;
+		}
+
+		const String name = property_name.get_slice("/", 1);
+
+		TreeItem *item = input_editor->create_item(root);
+		item->set_text(0, name);
+		item->set_custom_bg_color(0, input_editor->get_theme_color("prop_subsection", "Editor"));
+		if (collapsed.has(name)) {
+			item->set_collapsed(collapsed[name]);
+		}
+
+		item->set_editable(1, true);
+		item->set_cell_mode(1, TreeItem::CELL_MODE_RANGE);
+		item->set_range_config(1, 0.0, 1.0, 0.01);
+
+		item->set_custom_bg_color(1, input_editor->get_theme_color("prop_subsection", "Editor"));
+
+		const bool is_builtin_input = ProjectSettings::get_singleton()->get_input_presets().find(property_name) != nullptr;
+		const String tooltip_remove = is_builtin_input ? TTR("Built-in actions can't be removed as they're used for UI navigation.") : TTR("Remove");
+		item->add_button(2, input_editor->get_theme_icon("Add", "EditorIcons"), 1, false, TTR("Add Event"));
+		item->add_button(2, input_editor->get_theme_icon("Remove", "EditorIcons"), 2, false, tooltip_remove);
+
+		if (is_builtin_input) {
+			item->set_button_disabled(2, 1, true);
+		} else {
+			item->set_editable(0, true);
+		}
+
+		Dictionary action = ProjectSettings::get_singleton()->get(property_name);
+		Array events = action["events"];
+		item->set_range(1, action["deadzone"]);
+
+		for (int i = 0; i < events.size(); i++) {
+			Ref<InputEvent> event = events[i];
+			if (event.is_null()) {
+				continue;
+			}
+
+			TreeItem *action2 = input_editor->create_item(item);
+
+			Ref<InputEventKey> k = event;
+			if (k.is_valid()) {
+				if (k->get_keycode() != 0) {
+					action2->set_text(0, keycode_get_string(k->get_keycode_with_modifiers()));
+					action2->set_icon(0, input_editor->get_theme_icon("Keyboard", "EditorIcons"));
+				} else {
+					action2->set_text(0, keycode_get_string(k->get_physical_keycode_with_modifiers()) + TTR(" (Physical)"));
+					action2->set_icon(0, input_editor->get_theme_icon("KeyboardPhysical", "EditorIcons"));
+				}
+			}
+
+			Ref<InputEventJoypadButton> jb = event;
+			if (jb.is_valid()) {
+				const int idx = jb->get_button_index();
+				String str = _get_device_string(jb->get_device()) + ", " +
+							 TTR("Button") + " " + itos(idx);
+				if (idx >= 0 && idx < JOY_SDL_BUTTONS) {
+					str += String() + " (" + TTR(_button_descriptions[jb->get_button_index()]) + ")";
+				}
+
+				action2->set_text(0, str);
+				action2->set_icon(0, input_editor->get_theme_icon("JoyButton", "EditorIcons"));
+			}
+
+			Ref<InputEventMouseButton> mb = event;
+			if (mb.is_valid()) {
+				String str = _get_device_string(mb->get_device()) + ", ";
+				switch (mb->get_button_index()) {
+					case BUTTON_LEFT:
+						str += TTR("Left Button");
+						break;
+					case BUTTON_RIGHT:
+						str += TTR("Right Button");
+						break;
+					case BUTTON_MIDDLE:
+						str += TTR("Middle Button");
+						break;
+					case BUTTON_WHEEL_UP:
+						str += TTR("Wheel Up");
+						break;
+					case BUTTON_WHEEL_DOWN:
+						str += TTR("Wheel Down");
+						break;
+					default:
+						str += vformat(TTR("%d Button"), mb->get_button_index());
+				}
+
+				action2->set_text(0, str);
+				action2->set_icon(0, input_editor->get_theme_icon("Mouse", "EditorIcons"));
+			}
+
+			Ref<InputEventJoypadMotion> jm = event;
+			if (jm.is_valid()) {
+				int ax = jm->get_axis();
+				int n = 2 * ax + (jm->get_axis_value() < 0 ? 0 : 1);
+				String str = _get_device_string(jm->get_device()) + ", " +
+							 TTR("Axis") + " " + itos(ax) + " " + (jm->get_axis_value() < 0 ? "-" : "+") +
+							 " (" + _axis_descriptions[n] + ")";
+				action2->set_text(0, str);
+				action2->set_icon(0, input_editor->get_theme_icon("JoyAxis", "EditorIcons"));
+			}
+			action2->set_metadata(0, i);
+			action2->set_meta("__input", event);
+
+			action2->add_button(2, input_editor->get_theme_icon("Edit", "EditorIcons"), 3, false, TTR("Edit"));
+			action2->add_button(2, input_editor->get_theme_icon("Remove", "EditorIcons"), 2, false, TTR("Remove"));
+			// Fade out the individual event buttons slightly to make the
+			// Add/Remove buttons stand out more.
+			action2->set_button_color(2, 0, Color(1, 1, 1, 0.75));
+			action2->set_button_color(2, 1, Color(1, 1, 1, 0.75));
+		}
+	}
+
+	_action_check(action_name->get_text());
+}
+
+void InputMapEditor::_action_check(String p_action) {
+	if (p_action == "") {
+		action_add->set_disabled(true);
+	} else {
+		if (!_validate_action_name(p_action)) {
+			action_add_error->set_text(TTR("Invalid action name. It cannot be empty nor contain '/', ':', '=', '\\' or '\"'."));
+			action_add_error->show();
+			action_add->set_disabled(true);
+			return;
+		}
+		if (ProjectSettings::get_singleton()->has_setting("input/" + p_action)) {
+			action_add_error->set_text(vformat(TTR("An action with the name '%s' already exists."), p_action));
+			action_add_error->show();
+			action_add->set_disabled(true);
+			return;
+		}
+
+		action_add->set_disabled(false);
+	}
+
+	action_add_error->hide();
+}
+
+void InputMapEditor::_action_adds(String) {
+	if (!action_add->is_disabled()) {
+		_action_add();
+	}
+}
+
+void InputMapEditor::_action_add() {
+	Dictionary action;
+	action["events"] = Array();
+	action["deadzone"] = 0.5f;
+	String name = "input/" + action_name->get_text();
+	undo_redo->create_action(TTR("Add Input Action"));
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
+	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "clear", name);
+	undo_redo->add_do_method(this, "_update_actions");
+	undo_redo->add_undo_method(this, "_update_actions");
+	undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+	undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+	undo_redo->commit_action();
+
+	TreeItem *r = input_editor->get_root();
+
+	if (!r) {
+		return;
+	}
+	r = r->get_children();
+	if (!r) {
+		return;
+	}
+	while (r->get_next()) {
+		r = r->get_next();
+	}
+
+	r->select(0);
+	input_editor->ensure_cursor_is_visible();
+	action_add_error->hide();
+	action_name->clear();
+}
+
+Variant InputMapEditor::get_drag_data_fw(const Point2 &p_point, Control *p_from) {
+	TreeItem *selected = input_editor->get_selected();
+	if (!selected || selected->get_parent() != input_editor->get_root()) {
+		return Variant();
+	}
+
+	String name = selected->get_text(0);
+	VBoxContainer *vb = memnew(VBoxContainer);
+	HBoxContainer *hb = memnew(HBoxContainer);
+	Label *label = memnew(Label(name));
+	hb->set_modulate(Color(1, 1, 1, 1.0f));
+	hb->add_child(label);
+	vb->add_child(hb);
+	input_editor->set_drag_preview(vb);
+
+	Dictionary drag_data;
+	drag_data["type"] = "nodes";
+
+	input_editor->set_drop_mode_flags(Tree::DROP_MODE_INBETWEEN);
+
+	return drag_data;
+}
+
+bool InputMapEditor::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {
+	Dictionary d = p_data;
+	if (!d.has("type") || d["type"] != "nodes") {
+		return false;
+	}
+
+	TreeItem *selected = input_editor->get_selected();
+	TreeItem *item = input_editor->get_item_at_position(p_point);
+	if (!selected || !item || item == selected || item->get_parent() == selected) {
+		return false;
+	}
+
+	return true;
+}
+
+void InputMapEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {
+	if (!can_drop_data_fw(p_point, p_data, p_from)) {
+		return;
+	}
+
+	TreeItem *selected = input_editor->get_selected();
+	TreeItem *item = input_editor->get_item_at_position(p_point);
+	if (!item) {
+		return;
+	}
+	TreeItem *target = item->get_parent() == input_editor->get_root() ? item : item->get_parent();
+
+	String selected_name = "input/" + selected->get_text(0);
+	int old_order = ProjectSettings::get_singleton()->get_order(selected_name);
+	String target_name = "input/" + target->get_text(0);
+	int target_order = ProjectSettings::get_singleton()->get_order(target_name);
+
+	int order = old_order;
+	bool is_below = target_order > old_order;
+	TreeItem *iterator = is_below ? selected->get_next() : selected->get_prev();
+
+	undo_redo->create_action(TTR("Moved Input Action Event"));
+	while (iterator != target) {
+		String iterator_name = "input/" + iterator->get_text(0);
+		int iterator_order = ProjectSettings::get_singleton()->get_order(iterator_name);
+		undo_redo->add_do_method(ProjectSettings::get_singleton(), "set_order", iterator_name, order);
+		undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set_order", iterator_name, iterator_order);
+		order = iterator_order;
+		iterator = is_below ? iterator->get_next() : iterator->get_prev();
+	}
+
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set_order", target_name, order);
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set_order", selected_name, target_order);
+	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set_order", target_name, target_order);
+	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set_order", selected_name, old_order);
+
+	undo_redo->add_do_method(this, "_update_actions");
+	undo_redo->add_undo_method(this, "_update_actions");
+	undo_redo->add_do_method(this, "emit_signal", inputmap_changed);
+	undo_redo->add_undo_method(this, "emit_signal", inputmap_changed);
+	undo_redo->commit_action();
+}
+
+void InputMapEditor::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("_update_actions"), &InputMapEditor::_update_actions);
+
+	ClassDB::bind_method(D_METHOD("get_drag_data_fw"), &InputMapEditor::get_drag_data_fw);
+	ClassDB::bind_method(D_METHOD("can_drop_data_fw"), &InputMapEditor::can_drop_data_fw);
+	ClassDB::bind_method(D_METHOD("drop_data_fw"), &InputMapEditor::drop_data_fw);
+
+	ADD_SIGNAL(MethodInfo("inputmap_changed"));
+}
+
+InputMapEditor::InputMapEditor() {
+	undo_redo = EditorNode::get_undo_redo();
+	press_a_key_physical = false;
+	inputmap_changed = "inputmap_changed";
+
+	VBoxContainer *vbc = memnew(VBoxContainer);
+	vbc->set_anchor_and_margin(MARGIN_TOP, Control::ANCHOR_BEGIN, 0);
+	vbc->set_anchor_and_margin(MARGIN_BOTTOM, Control::ANCHOR_END, 0);
+	vbc->set_anchor_and_margin(MARGIN_LEFT, Control::ANCHOR_BEGIN, 0);
+	vbc->set_anchor_and_margin(MARGIN_RIGHT, Control::ANCHOR_END, 0);
+	add_child(vbc);
+
+	HBoxContainer *hbc = memnew(HBoxContainer);
+	vbc->add_child(hbc);
+
+	Label *l = memnew(Label);
+	l->set_text(TTR("Action:"));
+	hbc->add_child(l);
+
+	action_name = memnew(LineEdit);
+	action_name->set_h_size_flags(Control::SIZE_EXPAND_FILL);
+	action_name->connect("text_entered", callable_mp(this, &InputMapEditor::_action_adds));
+	action_name->connect("text_changed", callable_mp(this, &InputMapEditor::_action_check));
+	hbc->add_child(action_name);
+
+	action_add_error = memnew(Label);
+	action_add_error->hide();
+	hbc->add_child(action_add_error);
+
+	Button *add = memnew(Button);
+	add->set_text(TTR("Add"));
+	add->set_disabled(true);
+	add->connect("pressed", callable_mp(this, &InputMapEditor::_action_add));
+	hbc->add_child(add);
+	action_add = add;
+
+	input_editor = memnew(Tree);
+	input_editor->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+	input_editor->set_columns(3);
+	input_editor->set_column_titles_visible(true);
+	input_editor->set_column_title(0, TTR("Action"));
+	input_editor->set_column_title(1, TTR("Deadzone"));
+	input_editor->set_column_expand(1, false);
+	input_editor->set_column_min_width(1, 80 * EDSCALE);
+	input_editor->set_column_expand(2, false);
+	input_editor->set_column_min_width(2, 50 * EDSCALE);
+	input_editor->connect("item_edited", callable_mp(this, &InputMapEditor::_action_edited));
+	input_editor->connect("item_activated", callable_mp(this, &InputMapEditor::_action_activated));
+	input_editor->connect("cell_selected", callable_mp(this, &InputMapEditor::_action_selected));
+	input_editor->connect("button_pressed", callable_mp(this, &InputMapEditor::_action_button_pressed));
+#ifndef _MSC_VER
+#warning need to make drag data forwarding to non controls happen
+#endif
+	//input_editor->set_drag_forwarding(this);
+	vbc->add_child(input_editor);
+
+	// Popups
+
+	popup_add = memnew(PopupMenu);
+	popup_add->connect("id_pressed", callable_mp(this, &InputMapEditor::_add_item), make_binds(Ref<InputEvent>()));
+	add_child(popup_add);
+
+	press_a_key = memnew(ConfirmationDialog);
+	press_a_key->get_ok()->set_disabled(true);
+	//press_a_key->set_focus_mode(Control::FOCUS_ALL);
+	press_a_key->connect("window_input", callable_mp(this, &InputMapEditor::_wait_for_key));
+	press_a_key->connect("confirmed", callable_mp(this, &InputMapEditor::_press_a_key_confirm));
+	add_child(press_a_key);
+
+	l = memnew(Label);
+	l->set_text(TTR("Press a Key..."));
+	l->set_anchors_and_margins_preset(Control::PRESET_WIDE);
+	l->set_align(Label::ALIGN_CENTER);
+	l->set_margin(MARGIN_TOP, 20);
+	l->set_anchor_and_margin(MARGIN_BOTTOM, Control::ANCHOR_BEGIN, 30);
+	press_a_key->add_child(l);
+	press_a_key_label = l;
+
+	device_input = memnew(ConfirmationDialog);
+	device_input->get_ok()->set_text(TTR("Add"));
+	device_input->connect("confirmed", callable_mp(this, &InputMapEditor::_device_input_add));
+	add_child(device_input);
+
+	hbc = memnew(HBoxContainer);
+	device_input->add_child(hbc);
+
+	VBoxContainer *vbc_left = memnew(VBoxContainer);
+	hbc->add_child(vbc_left);
+
+	l = memnew(Label);
+	l->set_text(TTR("Device:"));
+	vbc_left->add_child(l);
+
+	device_id = memnew(OptionButton);
+	for (int i = -1; i < 8; i++) {
+		device_id->add_item(_get_device_string(i));
+	}
+	_set_current_device(0);
+	vbc_left->add_child(device_id);
+
+	VBoxContainer *vbc_right = memnew(VBoxContainer);
+	vbc_right->set_h_size_flags(Control::SIZE_EXPAND_FILL);
+	hbc->add_child(vbc_right);
+
+	l = memnew(Label);
+	l->set_text(TTR("Index:"));
+	vbc_right->add_child(l);
+
+	device_index_label = l;
+	device_index = memnew(OptionButton);
+	device_index->set_clip_text(true);
+	vbc_right->add_child(device_index);
+
+	message = memnew(AcceptDialog);
+	add_child(message);
+}

editor/input_map_editor.h

@@ -0,0 +1,107 @@
+/*************************************************************************/
+/*  input_map_editor.h                                                   */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 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.                */
+/*************************************************************************/
+
+#ifndef INPUT_MAP_EDITOR_H
+#define INPUT_MAP_EDITOR_H
+
+#include "core/undo_redo.h"
+#include "editor/editor_data.h"
+
+class InputMapEditor : public Control {
+	GDCLASS(InputMapEditor, Control);
+
+	enum InputType {
+		INPUT_KEY,
+		INPUT_KEY_PHYSICAL,
+		INPUT_JOY_BUTTON,
+		INPUT_JOY_MOTION,
+		INPUT_MOUSE_BUTTON
+	};
+
+	Tree *input_editor;
+	LineEdit *action_name;
+	Button *action_add;
+	Label *action_add_error;
+
+	InputType add_type;
+	String add_at;
+	int edit_idx;
+
+	PopupMenu *popup_add;
+	ConfirmationDialog *press_a_key;
+	bool press_a_key_physical;
+	Label *press_a_key_label;
+	ConfirmationDialog *device_input;
+	OptionButton *device_id;
+	OptionButton *device_index;
+	Label *device_index_label;
+	MenuButton *popup_copy_to_feature;
+
+	Ref<InputEventKey> last_wait_for_key;
+
+	AcceptDialog *message;
+	UndoRedo *undo_redo;
+	String inputmap_changed;
+	bool setting;
+
+	void _update_actions();
+	void _add_item(int p_item, Ref<InputEvent> p_exiting_event = Ref<InputEvent>());
+	void _edit_item(Ref<InputEvent> p_exiting_event);
+
+	void _action_check(String p_action);
+	void _action_adds(String);
+	void _action_add();
+	void _device_input_add();
+
+	void _action_selected();
+	void _action_edited();
+	void _action_activated();
+	void _action_button_pressed(Object *p_obj, int p_column, int p_id);
+	void _wait_for_key(const Ref<InputEvent> &p_event);
+	void _press_a_key_confirm();
+	void _show_last_added(const Ref<InputEvent> &p_event, const String &p_name);
+
+	Variant get_drag_data_fw(const Point2 &p_point, Control *p_from);
+	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
+	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
+
+protected:
+	int _get_current_device();
+	void _set_current_device(int i_device);
+	String _get_device_string(int i_device);
+
+	void _notification(int p_what);
+	static void _bind_methods();
+
+public:
+	InputMapEditor();
+};
+
+#endif // INPUT_MAP_EDITOR_H

editor/localization_editor.cpp

@@ -0,0 +1,794 @@
+/*************************************************************************/
+/*  localization_editor.cpp                                              */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 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 "localization_editor.h"
+
+#include "core/translation.h"
+#include "editor_node.h"
+#include "editor_translation_parser.h"
+#include "pot_generator.h"
+#include "scene/gui/control.h"
+
+void LocalizationEditor::_notification(int p_what) {
+	if (p_what == NOTIFICATION_ENTER_TREE) {
+		translation_list->connect("button_pressed", callable_mp(this, &LocalizationEditor::_translation_delete));
+		translation_pot_list->connect("button_pressed", callable_mp(this, &LocalizationEditor::_pot_delete));
+
+		List<String> tfn;
+		ResourceLoader::get_recognized_extensions_for_type("Translation", &tfn);
+		for (List<String>::Element *E = tfn.front(); E; E = E->next()) {
+			translation_file_open->add_filter("*." + E->get());
+		}
+
+		List<String> rfn;
+		ResourceLoader::get_recognized_extensions_for_type("Resource", &rfn);
+		for (List<String>::Element *E = rfn.front(); E; E = E->next()) {
+			translation_res_file_open_dialog->add_filter("*." + E->get());
+			translation_res_option_file_open_dialog->add_filter("*." + E->get());
+		}
+
+		_update_pot_file_extensions();
+		pot_generate_dialog->add_filter("*.pot");
+	}
+}
+
+void LocalizationEditor::add_translation(const String &p_translation) {
+	_translation_add(p_translation);
+}
+
+void LocalizationEditor::_translation_add(const String &p_path) {
+	PackedStringArray translations = ProjectSettings::get_singleton()->get("locale/translations");
+	if (translations.has(p_path)) {
+		return;
+	}
+
+	translations.push_back(p_path);
+
+	undo_redo->create_action(TTR("Add Translation"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translations", translations);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translations", ProjectSettings::get_singleton()->get("locale/translations"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_translation_file_open() {
+	translation_file_open->popup_centered_ratio();
+}
+
+void LocalizationEditor::_translation_delete(Object *p_item, int p_column, int p_button) {
+	TreeItem *ti = Object::cast_to<TreeItem>(p_item);
+	ERR_FAIL_COND(!ti);
+
+	int idx = ti->get_metadata(0);
+
+	PackedStringArray translations = ProjectSettings::get_singleton()->get("locale/translations");
+
+	ERR_FAIL_INDEX(idx, translations.size());
+
+	translations.remove(idx);
+
+	undo_redo->create_action(TTR("Remove Translation"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translations", translations);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translations", ProjectSettings::get_singleton()->get("locale/translations"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_translation_res_file_open() {
+	translation_res_file_open_dialog->popup_centered_ratio();
+}
+
+void LocalizationEditor::_translation_res_add(const String &p_path) {
+	Variant prev;
+	Dictionary remaps;
+
+	if (ProjectSettings::get_singleton()->has_setting("locale/translation_remaps")) {
+		remaps = ProjectSettings::get_singleton()->get("locale/translation_remaps");
+		prev = remaps;
+	}
+
+	if (remaps.has(p_path)) {
+		return; //pointless already has it
+	}
+
+	remaps[p_path] = PackedStringArray();
+
+	undo_redo->create_action(TTR("Add Remapped Path"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translation_remaps", remaps);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translation_remaps", prev);
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_translation_res_option_file_open() {
+	translation_res_option_file_open_dialog->popup_centered_ratio();
+}
+
+void LocalizationEditor::_translation_res_option_add(const String &p_path) {
+	ERR_FAIL_COND(!ProjectSettings::get_singleton()->has_setting("locale/translation_remaps"));
+
+	Dictionary remaps = ProjectSettings::get_singleton()->get("locale/translation_remaps");
+
+	TreeItem *k = translation_remap->get_selected();
+	ERR_FAIL_COND(!k);
+
+	String key = k->get_metadata(0);
+
+	ERR_FAIL_COND(!remaps.has(key));
+	PackedStringArray r = remaps[key];
+	r.push_back(p_path + ":" + "en");
+	remaps[key] = r;
+
+	undo_redo->create_action(TTR("Resource Remap Add Remap"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translation_remaps", remaps);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translation_remaps", ProjectSettings::get_singleton()->get("locale/translation_remaps"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_translation_res_select() {
+	if (updating_translations) {
+		return;
+	}
+
+	call_deferred("update_translations");
+}
+
+void LocalizationEditor::_translation_res_option_changed() {
+	if (updating_translations) {
+		return;
+	}
+
+	if (!ProjectSettings::get_singleton()->has_setting("locale/translation_remaps")) {
+		return;
+	}
+
+	Dictionary remaps = ProjectSettings::get_singleton()->get("locale/translation_remaps");
+
+	TreeItem *k = translation_remap->get_selected();
+	ERR_FAIL_COND(!k);
+	TreeItem *ed = translation_remap_options->get_edited();
+	ERR_FAIL_COND(!ed);
+
+	String key = k->get_metadata(0);
+	int idx = ed->get_metadata(0);
+	String path = ed->get_metadata(1);
+	int which = ed->get_range(1);
+
+	Vector<String> langs = TranslationServer::get_all_locales();
+
+	ERR_FAIL_INDEX(which, langs.size());
+
+	ERR_FAIL_COND(!remaps.has(key));
+	PackedStringArray r = remaps[key];
+	ERR_FAIL_INDEX(idx, r.size());
+	if (translation_locales_idxs_remap.size() > which) {
+		r.set(idx, path + ":" + langs[translation_locales_idxs_remap[which]]);
+	} else {
+		r.set(idx, path + ":" + langs[which]);
+	}
+	remaps[key] = r;
+
+	updating_translations = true;
+	undo_redo->create_action(TTR("Change Resource Remap Language"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translation_remaps", remaps);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translation_remaps", ProjectSettings::get_singleton()->get("locale/translation_remaps"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+	updating_translations = false;
+}
+
+void LocalizationEditor::_translation_res_delete(Object *p_item, int p_column, int p_button) {
+	if (updating_translations) {
+		return;
+	}
+
+	if (!ProjectSettings::get_singleton()->has_setting("locale/translation_remaps")) {
+		return;
+	}
+
+	Dictionary remaps = ProjectSettings::get_singleton()->get("locale/translation_remaps");
+
+	TreeItem *k = Object::cast_to<TreeItem>(p_item);
+
+	String key = k->get_metadata(0);
+	ERR_FAIL_COND(!remaps.has(key));
+
+	remaps.erase(key);
+
+	undo_redo->create_action(TTR("Remove Resource Remap"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translation_remaps", remaps);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translation_remaps", ProjectSettings::get_singleton()->get("locale/translation_remaps"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_translation_res_option_delete(Object *p_item, int p_column, int p_button) {
+	if (updating_translations) {
+		return;
+	}
+
+	if (!ProjectSettings::get_singleton()->has_setting("locale/translation_remaps")) {
+		return;
+	}
+
+	Dictionary remaps = ProjectSettings::get_singleton()->get("locale/translation_remaps");
+
+	TreeItem *k = translation_remap->get_selected();
+	ERR_FAIL_COND(!k);
+	TreeItem *ed = Object::cast_to<TreeItem>(p_item);
+	ERR_FAIL_COND(!ed);
+
+	String key = k->get_metadata(0);
+	int idx = ed->get_metadata(0);
+
+	ERR_FAIL_COND(!remaps.has(key));
+	PackedStringArray r = remaps[key];
+	ERR_FAIL_INDEX(idx, r.size());
+	r.remove(idx);
+	remaps[key] = r;
+
+	undo_redo->create_action(TTR("Remove Resource Remap Option"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translation_remaps", remaps);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translation_remaps", ProjectSettings::get_singleton()->get("locale/translation_remaps"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_translation_filter_option_changed() {
+	int sel_id = translation_locale_filter_mode->get_selected_id();
+	TreeItem *t = translation_filter->get_edited();
+	String locale = t->get_tooltip(0);
+	bool checked = t->is_checked(0);
+
+	Variant prev;
+	Array f_locales_all;
+
+	if (ProjectSettings::get_singleton()->has_setting("locale/locale_filter")) {
+		f_locales_all = ProjectSettings::get_singleton()->get("locale/locale_filter");
+		prev = f_locales_all;
+
+		if (f_locales_all.size() != 2) {
+			f_locales_all.clear();
+			f_locales_all.append(sel_id);
+			f_locales_all.append(Array());
+		}
+	} else {
+		f_locales_all.append(sel_id);
+		f_locales_all.append(Array());
+	}
+
+	Array f_locales = f_locales_all[1];
+	int l_idx = f_locales.find(locale);
+
+	if (checked) {
+		if (l_idx == -1) {
+			f_locales.append(locale);
+		}
+	} else {
+		if (l_idx != -1) {
+			f_locales.remove(l_idx);
+		}
+	}
+
+	f_locales = f_locales.sort();
+
+	undo_redo->create_action(TTR("Changed Locale Filter"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/locale_filter", f_locales_all);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/locale_filter", prev);
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_translation_filter_mode_changed(int p_mode) {
+	int sel_id = translation_locale_filter_mode->get_selected_id();
+
+	Variant prev;
+	Array f_locales_all;
+
+	if (ProjectSettings::get_singleton()->has_setting("locale/locale_filter")) {
+		f_locales_all = ProjectSettings::get_singleton()->get("locale/locale_filter");
+		prev = f_locales_all;
+
+		if (f_locales_all.size() != 2) {
+			f_locales_all.clear();
+			f_locales_all.append(sel_id);
+			f_locales_all.append(Array());
+		} else {
+			f_locales_all[0] = sel_id;
+		}
+	} else {
+		f_locales_all.append(sel_id);
+		f_locales_all.append(Array());
+	}
+
+	undo_redo->create_action(TTR("Changed Locale Filter Mode"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/locale_filter", f_locales_all);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/locale_filter", prev);
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_pot_add(const String &p_path) {
+	PackedStringArray pot_translations = ProjectSettings::get_singleton()->get("locale/translations_pot_files");
+
+	for (int i = 0; i < pot_translations.size(); i++) {
+		if (pot_translations[i] == p_path) {
+			return; //exists
+		}
+	}
+
+	pot_translations.push_back(p_path);
+	undo_redo->create_action(TTR("Add files for POT generation"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translations_pot_files", pot_translations);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translations_pot_files", ProjectSettings::get_singleton()->get("locale/translations_pot_files"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_pot_delete(Object *p_item, int p_column, int p_button) {
+	TreeItem *ti = Object::cast_to<TreeItem>(p_item);
+	ERR_FAIL_COND(!ti);
+
+	int idx = ti->get_metadata(0);
+
+	PackedStringArray pot_translations = ProjectSettings::get_singleton()->get("locale/translations_pot_files");
+
+	ERR_FAIL_INDEX(idx, pot_translations.size());
+
+	pot_translations.remove(idx);
+
+	undo_redo->create_action(TTR("Remove file from POT generation"));
+	undo_redo->add_do_property(ProjectSettings::get_singleton(), "locale/translations_pot_files", pot_translations);
+	undo_redo->add_undo_property(ProjectSettings::get_singleton(), "locale/translations_pot_files", ProjectSettings::get_singleton()->get("locale/translations_pot_files"));
+	undo_redo->add_do_method(this, "update_translations");
+	undo_redo->add_undo_method(this, "update_translations");
+	undo_redo->add_do_method(this, "emit_signal", localization_changed);
+	undo_redo->add_undo_method(this, "emit_signal", localization_changed);
+	undo_redo->commit_action();
+}
+
+void LocalizationEditor::_pot_file_open() {
+	pot_file_open_dialog->popup_centered_ratio();
+}
+
+void LocalizationEditor::_pot_generate_open() {
+	pot_generate_dialog->popup_centered_ratio();
+}
+
+void LocalizationEditor::_pot_generate(const String &p_file) {
+	POTGenerator::get_singleton()->generate_pot(p_file);
+}
+
+void LocalizationEditor::_update_pot_file_extensions() {
+	pot_file_open_dialog->clear_filters();
+	List<String> translation_parse_file_extensions;
+	EditorTranslationParser::get_singleton()->get_recognized_extensions(&translation_parse_file_extensions);
+	for (List<String>::Element *E = translation_parse_file_extensions.front(); E; E = E->next()) {
+		pot_file_open_dialog->add_filter("*." + E->get());
+	}
+}
+
+void LocalizationEditor::update_translations() {
+	if (updating_translations) {
+		return;
+	}
+
+	updating_translations = true;
+
+	translation_list->clear();
+	TreeItem *root = translation_list->create_item(nullptr);
+	translation_list->set_hide_root(true);
+	if (ProjectSettings::get_singleton()->has_setting("locale/translations")) {
+		PackedStringArray translations = ProjectSettings::get_singleton()->get("locale/translations");
+		for (int i = 0; i < translations.size(); i++) {
+			TreeItem *t = translation_list->create_item(root);
+			t->set_editable(0, false);
+			t->set_text(0, translations[i].replace_first("res://", ""));
+			t->set_tooltip(0, translations[i]);
+			t->set_metadata(0, i);
+			t->add_button(0, get_theme_icon("Remove", "EditorIcons"), 0, false, TTR("Remove"));
+		}
+	}
+
+	Vector<String> langs = TranslationServer::get_all_locales();
+	Vector<String> names = TranslationServer::get_all_locale_names();
+
+	// Update filter tab
+	Array l_filter_all;
+
+	bool is_arr_empty = true;
+	if (ProjectSettings::get_singleton()->has_setting("locale/locale_filter")) {
+		l_filter_all = ProjectSettings::get_singleton()->get("locale/locale_filter");
+
+		if (l_filter_all.size() == 2) {
+			translation_locale_filter_mode->select(l_filter_all[0]);
+			is_arr_empty = false;
+		}
+	}
+	if (is_arr_empty) {
+		l_filter_all.append(0);
+		l_filter_all.append(Array());
+		translation_locale_filter_mode->select(0);
+	}
+
+	int filter_mode = l_filter_all[0];
+	Array l_filter = l_filter_all[1];
+
+	int s = names.size();
+	bool is_short_list_when_show_all_selected = filter_mode == SHOW_ALL_LOCALES && translation_filter_treeitems.size() < s;
+	bool is_full_list_when_show_only_selected = filter_mode == SHOW_ONLY_SELECTED_LOCALES && translation_filter_treeitems.size() == s;
+	bool should_recreate_locales_list = is_short_list_when_show_all_selected || is_full_list_when_show_only_selected;
+
+	if (!translation_locales_list_created || should_recreate_locales_list) {
+		translation_locales_list_created = true;
+		translation_filter->clear();
+		root = translation_filter->create_item(nullptr);
+		translation_filter->set_hide_root(true);
+		translation_filter_treeitems.clear();
+		for (int i = 0; i < s; i++) {
+			String n = names[i];
+			String l = langs[i];
+			bool is_checked = l_filter.has(l);
+			if (filter_mode == SHOW_ONLY_SELECTED_LOCALES && !is_checked) {
+				continue;
+			}
+
+			TreeItem *t = translation_filter->create_item(root);
+			t->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
+			t->set_text(0, n);
+			t->set_editable(0, true);
+			t->set_tooltip(0, l);
+			t->set_checked(0, is_checked);
+			translation_filter_treeitems.push_back(t);
+		}
+	} else {
+		for (int i = 0; i < translation_filter_treeitems.size(); i++) {
+			TreeItem *t = translation_filter_treeitems[i];
+			t->set_checked(0, l_filter.has(t->get_tooltip(0)));
+		}
+	}
+
+	// Update translation remaps.
+	String remap_selected;
+	if (translation_remap->get_selected()) {
+		remap_selected = translation_remap->get_selected()->get_metadata(0);
+	}
+
+	translation_remap->clear();
+	translation_remap_options->clear();
+	root = translation_remap->create_item(nullptr);
+	TreeItem *root2 = translation_remap_options->create_item(nullptr);
+	translation_remap->set_hide_root(true);
+	translation_remap_options->set_hide_root(true);
+	translation_res_option_add_button->set_disabled(true);
+
+	translation_locales_idxs_remap.clear();
+	translation_locales_idxs_remap.resize(l_filter.size());
+	int fl_idx_count = translation_locales_idxs_remap.size();
+
+	String langnames = "";
+	int l_idx = 0;
+	for (int i = 0; i < names.size(); i++) {
+		if (filter_mode == SHOW_ONLY_SELECTED_LOCALES && fl_idx_count != 0) {
+			if (l_filter.size() > 0) {
+				if (l_filter.find(langs[i]) != -1) {
+					if (langnames.length() > 0) {
+						langnames += ",";
+					}
+					langnames += names[i];
+					translation_locales_idxs_remap.write[l_idx] = i;
+					l_idx++;
+				}
+			}
+		} else {
+			if (i > 0) {
+				langnames += ",";
+			}
+			langnames += names[i];
+		}
+	}
+
+	if (ProjectSettings::get_singleton()->has_setting("locale/translation_remaps")) {
+		Dictionary remaps = ProjectSettings::get_singleton()->get("locale/translation_remaps");
+		List<Variant> rk;
+		remaps.get_key_list(&rk);
+		Vector<String> keys;
+		for (List<Variant>::Element *E = rk.front(); E; E = E->next()) {
+			keys.push_back(E->get());
+		}
+		keys.sort();
+
+		for (int i = 0; i < keys.size(); i++) {
+			TreeItem *t = translation_remap->create_item(root);
+			t->set_editable(0, false);
+			t->set_text(0, keys[i].replace_first("res://", ""));
+			t->set_tooltip(0, keys[i]);
+			t->set_metadata(0, keys[i]);
+			t->add_button(0, get_theme_icon("Remove", "EditorIcons"), 0, false, TTR("Remove"));
+			if (keys[i] == remap_selected) {
+				t->select(0);
+				translation_res_option_add_button->set_disabled(false);
+
+				PackedStringArray selected = remaps[keys[i]];
+				for (int j = 0; j < selected.size(); j++) {
+					String s2 = selected[j];
+					int qp = s2.rfind(":");
+					String path = s2.substr(0, qp);
+					String locale = s2.substr(qp + 1, s2.length());
+
+					TreeItem *t2 = translation_remap_options->create_item(root2);
+					t2->set_editable(0, false);
+					t2->set_text(0, path.replace_first("res://", ""));
+					t2->set_tooltip(0, path);
+					t2->set_metadata(0, j);
+					t2->add_button(0, get_theme_icon("Remove", "EditorIcons"), 0, false, TTR("Remove"));
+					t2->set_cell_mode(1, TreeItem::CELL_MODE_RANGE);
+					t2->set_text(1, langnames);
+					t2->set_editable(1, true);
+					t2->set_metadata(1, path);
+					int idx = langs.find(locale);
+					if (idx < 0) {
+						idx = 0;
+					}
+
+					int f_idx = translation_locales_idxs_remap.find(idx);
+					if (f_idx != -1 && fl_idx_count > 0 && filter_mode == SHOW_ONLY_SELECTED_LOCALES) {
+						t2->set_range(1, f_idx);
+					} else {
+						t2->set_range(1, idx);
+					}
+				}
+			}
+		}
+	}
+
+	// Update translation POT files.
+	translation_pot_list->clear();
+	root = translation_pot_list->create_item(nullptr);
+	translation_pot_list->set_hide_root(true);
+	if (ProjectSettings::get_singleton()->has_setting("locale/translations_pot_files")) {
+		PackedStringArray pot_translations = ProjectSettings::get_singleton()->get("locale/translations_pot_files");
+		for (int i = 0; i < pot_translations.size(); i++) {
+			TreeItem *t = translation_pot_list->create_item(root);
+			t->set_editable(0, false);
+			t->set_text(0, pot_translations[i].replace_first("res://", ""));
+			t->set_tooltip(0, pot_translations[i]);
+			t->set_metadata(0, i);
+			t->add_button(0, get_theme_icon("Remove", "EditorIcons"), 0, false, TTR("Remove"));
+		}
+	}
+
+	// New translation parser plugin might extend possible file extensions in POT generation.
+	_update_pot_file_extensions();
+
+	updating_translations = false;
+}
+
+void LocalizationEditor::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("update_translations"), &LocalizationEditor::update_translations);
+
+	ADD_SIGNAL(MethodInfo("localization_changed"));
+}
+
+LocalizationEditor::LocalizationEditor() {
+	undo_redo = EditorNode::get_undo_redo();
+	updating_translations = false;
+	localization_changed = "localization_changed";
+
+	translation_locales_idxs_remap = Vector<int>();
+	translation_locales_list_created = false;
+
+	TabContainer *translations = memnew(TabContainer);
+	translations->set_tab_align(TabContainer::ALIGN_LEFT);
+	translations->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+	add_child(translations);
+
+	{
+		VBoxContainer *tvb = memnew(VBoxContainer);
+		tvb->set_name(TTR("Translations"));
+		translations->add_child(tvb);
+
+		HBoxContainer *thb = memnew(HBoxContainer);
+		thb->add_spacer();
+		thb->add_child(memnew(Label(TTR("Translations:"))));
+		tvb->add_child(thb);
+
+		Button *addtr = memnew(Button(TTR("Add...")));
+		addtr->connect("pressed", callable_mp(this, &LocalizationEditor::_translation_file_open));
+		thb->add_child(addtr);
+
+		VBoxContainer *tmc = memnew(VBoxContainer);
+		tmc->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		tvb->add_child(tmc);
+
+		translation_list = memnew(Tree);
+		translation_list->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		tmc->add_child(translation_list);
+
+		translation_file_open = memnew(EditorFileDialog);
+		translation_file_open->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
+		translation_file_open->connect("file_selected", callable_mp(this, &LocalizationEditor::_translation_add));
+		add_child(translation_file_open);
+	}
+
+	{
+		VBoxContainer *tvb = memnew(VBoxContainer);
+		tvb->set_name(TTR("Remaps"));
+		translations->add_child(tvb);
+
+		HBoxContainer *thb = memnew(HBoxContainer);
+		thb->add_child(memnew(Label(TTR("Resources:"))));
+		thb->add_spacer();
+		tvb->add_child(thb);
+
+		Button *addtr = memnew(Button(TTR("Add...")));
+		addtr->connect("pressed", callable_mp(this, &LocalizationEditor::_translation_res_file_open));
+		thb->add_child(addtr);
+
+		VBoxContainer *tmc = memnew(VBoxContainer);
+		tmc->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		tvb->add_child(tmc);
+
+		translation_remap = memnew(Tree);
+		translation_remap->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		translation_remap->connect("cell_selected", callable_mp(this, &LocalizationEditor::_translation_res_select));
+		translation_remap->connect("button_pressed", callable_mp(this, &LocalizationEditor::_translation_res_delete));
+		tmc->add_child(translation_remap);
+
+		translation_res_file_open_dialog = memnew(EditorFileDialog);
+		translation_res_file_open_dialog->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
+		translation_res_file_open_dialog->connect("file_selected", callable_mp(this, &LocalizationEditor::_translation_res_add));
+		add_child(translation_res_file_open_dialog);
+
+		thb = memnew(HBoxContainer);
+		thb->add_child(memnew(Label(TTR("Remaps by Locale:"))));
+		thb->add_spacer();
+		tvb->add_child(thb);
+
+		addtr = memnew(Button(TTR("Add...")));
+		addtr->connect("pressed", callable_mp(this, &LocalizationEditor::_translation_res_option_file_open));
+		translation_res_option_add_button = addtr;
+		thb->add_child(addtr);
+
+		tmc = memnew(VBoxContainer);
+		tmc->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		tvb->add_child(tmc);
+
+		translation_remap_options = memnew(Tree);
+		translation_remap_options->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		translation_remap_options->set_columns(2);
+		translation_remap_options->set_column_title(0, TTR("Path"));
+		translation_remap_options->set_column_title(1, TTR("Locale"));
+		translation_remap_options->set_column_titles_visible(true);
+		translation_remap_options->set_column_expand(0, true);
+		translation_remap_options->set_column_expand(1, false);
+		translation_remap_options->set_column_min_width(1, 200);
+		translation_remap_options->connect("item_edited", callable_mp(this, &LocalizationEditor::_translation_res_option_changed));
+		translation_remap_options->connect("button_pressed", callable_mp(this, &LocalizationEditor::_translation_res_option_delete));
+		tmc->add_child(translation_remap_options);
+
+		translation_res_option_file_open_dialog = memnew(EditorFileDialog);
+		translation_res_option_file_open_dialog->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
+		translation_res_option_file_open_dialog->connect("file_selected", callable_mp(this, &LocalizationEditor::_translation_res_option_add));
+		add_child(translation_res_option_file_open_dialog);
+	}
+
+	{
+		VBoxContainer *tvb = memnew(VBoxContainer);
+		tvb->set_name(TTR("Locales Filter"));
+		translations->add_child(tvb);
+
+		VBoxContainer *tmc = memnew(VBoxContainer);
+		tmc->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		tvb->add_child(tmc);
+
+		translation_locale_filter_mode = memnew(OptionButton);
+		translation_locale_filter_mode->add_item(TTR("Show All Locales"), SHOW_ALL_LOCALES);
+		translation_locale_filter_mode->add_item(TTR("Show Selected Locales Only"), SHOW_ONLY_SELECTED_LOCALES);
+		translation_locale_filter_mode->select(0);
+		translation_locale_filter_mode->connect("item_selected", callable_mp(this, &LocalizationEditor::_translation_filter_mode_changed));
+		tmc->add_margin_child(TTR("Filter mode:"), translation_locale_filter_mode);
+
+		tmc->add_child(memnew(Label(TTR("Locales:"))));
+		translation_filter = memnew(Tree);
+		translation_filter->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		translation_filter->set_columns(1);
+		translation_filter->connect("item_edited", callable_mp(this, &LocalizationEditor::_translation_filter_option_changed));
+		tmc->add_child(translation_filter);
+	}
+
+	{
+		VBoxContainer *tvb = memnew(VBoxContainer);
+		tvb->set_name(TTR("POT Generation"));
+		translations->add_child(tvb);
+
+		HBoxContainer *thb = memnew(HBoxContainer);
+		thb->add_child(memnew(Label(TTR("Files with translation strings:"))));
+		thb->add_spacer();
+		tvb->add_child(thb);
+
+		Button *addtr = memnew(Button(TTR("Add...")));
+		addtr->connect("pressed", callable_mp(this, &LocalizationEditor::_pot_file_open));
+		thb->add_child(addtr);
+
+		Button *generate = memnew(Button(TTR("Generate POT")));
+		generate->connect("pressed", callable_mp(this, &LocalizationEditor::_pot_generate_open));
+		thb->add_child(generate);
+
+		VBoxContainer *tmc = memnew(VBoxContainer);
+		tmc->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		tvb->add_child(tmc);
+
+		translation_pot_list = memnew(Tree);
+		translation_pot_list->set_v_size_flags(Control::SIZE_EXPAND_FILL);
+		tmc->add_child(translation_pot_list);
+
+		pot_generate_dialog = memnew(EditorFileDialog);
+		pot_generate_dialog->set_file_mode(EditorFileDialog::FILE_MODE_SAVE_FILE);
+		pot_generate_dialog->connect("file_selected", callable_mp(this, &LocalizationEditor::_pot_generate));
+		add_child(pot_generate_dialog);
+
+		pot_file_open_dialog = memnew(EditorFileDialog);
+		pot_file_open_dialog->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
+		pot_file_open_dialog->connect("file_selected", callable_mp(this, &LocalizationEditor::_pot_add));
+		add_child(pot_file_open_dialog);
+	}
+}

editor/localization_editor.h

@@ -0,0 +1,103 @@
+/*************************************************************************/
+/*  localization_editor.h                                                */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 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.                */
+/*************************************************************************/
+
+#ifndef LOCALIZATION_EDITOR_H
+#define LOCALIZATION_EDITOR_H
+
+#include "core/undo_redo.h"
+#include "editor_file_dialog.h"
+#include "scene/gui/tree.h"
+
+class LocalizationEditor : public VBoxContainer {
+	GDCLASS(LocalizationEditor, VBoxContainer);
+
+	enum LocaleFilter {
+		SHOW_ALL_LOCALES,
+		SHOW_ONLY_SELECTED_LOCALES,
+	};
+
+	Tree *translation_list;
+
+	EditorFileDialog *translation_file_open;
+
+	Button *translation_res_option_add_button;
+	EditorFileDialog *translation_res_file_open_dialog;
+	EditorFileDialog *translation_res_option_file_open_dialog;
+	Tree *translation_remap;
+	Tree *translation_remap_options;
+	Tree *translation_filter;
+	bool translation_locales_list_created;
+	OptionButton *translation_locale_filter_mode;
+	Vector<TreeItem *> translation_filter_treeitems;
+	Vector<int> translation_locales_idxs_remap;
+
+	Tree *translation_pot_list;
+	EditorFileDialog *pot_file_open_dialog;
+	EditorFileDialog *pot_generate_dialog;
+
+	UndoRedo *undo_redo;
+	bool updating_translations;
+	String localization_changed;
+
+	void _translation_file_open();
+	void _translation_add(const String &p_path);
+	void _translation_delete(Object *p_item, int p_column, int p_button);
+
+	void _translation_res_file_open();
+	void _translation_res_add(const String &p_path);
+	void _translation_res_delete(Object *p_item, int p_column, int p_button);
+	void _translation_res_select();
+	void _translation_res_option_file_open();
+	void _translation_res_option_add(const String &p_path);
+	void _translation_res_option_changed();
+	void _translation_res_option_delete(Object *p_item, int p_column, int p_button);
+
+	void _translation_filter_option_changed();
+	void _translation_filter_mode_changed(int p_mode);
+
+	void _pot_add(const String &p_path);
+	void _pot_delete(Object *p_item, int p_column, int p_button);
+	void _pot_file_open();
+	void _pot_generate_open();
+	void _pot_generate(const String &p_file);
+	void _update_pot_file_extensions();
+
+protected:
+	void _notification(int p_what);
+	static void _bind_methods();
+
+public:
+	void add_translation(const String &p_translation);
+	void update_translations();
+
+	LocalizationEditor();
+};
+
+#endif // LOCALIZATION_EDITOR_H

editor/project_settings_editor.h

@@ -32,13 +32,15 @@
 #define PROJECT_SETTINGS_EDITOR_H
 
 #include "core/undo_redo.h"
-#include "editor/editor_autoload_settings.h"
 #include "editor/editor_data.h"
 #include "editor/editor_plugin_settings.h"
 #include "editor/editor_sectioned_inspector.h"
-#include "editor/shader_globals_editor.h"
+#include "editor_autoload_settings.h"
+#include "input_map_editor.h"
+#include "localization_editor.h"
 #include "scene/gui/dialogs.h"
 #include "scene/gui/tab_container.h"
+#include "shader_globals_editor.h"
 
 class ProjectSettingsEditor : public AcceptDialog {
 	GDCLASS(ProjectSettingsEditor, AcceptDialog);
@@ -51,142 +53,54 @@ class ProjectSettingsEditor : public AcceptDialog {
 		INPUT_MOUSE_BUTTON
 	};
 
-	enum LocaleFilter {
-		SHOW_ALL_LOCALES,
-		SHOW_ONLY_SELECTED_LOCALES,
-	};
-
 	TabContainer *tab_container;
-
+	AcceptDialog *message;
 	Timer *timer;
-	InputType add_type;
-	String add_at;
-	int edit_idx;
-
-	EditorData *data;
-	UndoRedo *undo_redo;
-	SectionedInspector *globals_editor;
 
 	HBoxContainer *search_bar;
 	Button *search_button;
 	LineEdit *search_box;
-
 	HBoxContainer *add_prop_bar;
-	AcceptDialog *message;
 	LineEdit *category;
 	LineEdit *property;
 	OptionButton *type;
-	PopupMenu *popup_add;
-	ConfirmationDialog *press_a_key;
-	bool press_a_key_physical;
-	Label *press_a_key_label;
-	ConfirmationDialog *device_input;
-	OptionButton *device_id;
-	OptionButton *device_index;
-	Label *device_index_label;
-	MenuButton *popup_copy_to_feature;
-	ShaderGlobalsEditor *shaders_global_variables_editor;
 
-	LineEdit *action_name;
-	Button *action_add;
-	Label *action_add_error;
-	Tree *input_editor;
-	bool setting;
-	bool updating_translations;
-
-	Ref<InputEventKey> last_wait_for_key;
-
-	EditorFileDialog *translation_file_open;
-	Tree *translation_list;
-
-	Button *translation_res_option_add_button;
-	EditorFileDialog *translation_res_file_open;
-	EditorFileDialog *translation_res_option_file_open;
-	Tree *translation_remap;
-	Tree *translation_remap_options;
-	Tree *translation_filter;
-	bool translation_locales_list_created;
-	OptionButton *translation_locale_filter_mode;
-	Vector<TreeItem *> translation_filter_treeitems;
-	Vector<int> translation_locales_idxs_remap;
-
-	Tree *translation_pot_list;
-	EditorFileDialog *translation_pot_file_open;
-	EditorFileDialog *translation_pot_generate;
+	SectionedInspector *globals_editor;
 
-	EditorAutoloadSettings *autoload_settings;
+	MenuButton *popup_copy_to_feature;
 
+	InputMapEditor *inputmap_editor;
+	LocalizationEditor *localization_editor;
+	EditorAutoloadSettings *autoload_settings;
+	ShaderGlobalsEditor *shaders_global_variables_editor;
 	EditorPluginSettings *plugin_settings;
 
+	Label *restart_label;
+	TextureRect *restart_icon;
+	PanelContainer *restart_container;
+	Button *restart_close_button;
+
+	EditorData *data;
+	UndoRedo *undo_redo;
+
 	void _item_selected(const String &);
 	void _item_adds(String);
 	void _item_add();
 	void _item_del();
-	void _update_actions();
 	void _save();
-	void _add_item(int p_item, Ref<InputEvent> p_exiting_event = Ref<InputEvent>());
-	void _edit_item(Ref<InputEvent> p_exiting_event);
-
-	void _action_check(String p_action);
-	void _action_adds(String);
-	void _action_add();
-	void _device_input_add();
-
-	void _item_checked(const String &p_item, bool p_check);
-	void _action_selected();
-	void _action_edited();
-	void _action_activated();
-	void _action_button_pressed(Object *p_obj, int p_column, int p_id);
-	void _wait_for_key(const Ref<InputEvent> &p_event);
-	void _press_a_key_confirm();
-	void _show_last_added(const Ref<InputEvent> &p_event, const String &p_name);
 
 	void _settings_prop_edited(const String &p_name);
 	void _settings_changed();
 
 	void _copy_to_platform(int p_which);
-
-	void _translation_file_open();
-	void _translation_add(const String &p_path);
-	void _translation_delete(Object *p_item, int p_column, int p_button);
-	void _update_translations();
-
-	void _translation_res_file_open();
-	void _translation_res_add(const String &p_path);
-	void _translation_res_delete(Object *p_item, int p_column, int p_button);
-	void _translation_res_select();
-	void _translation_res_option_file_open();
-	void _translation_res_option_add(const String &p_path);
-	void _translation_res_option_changed();
-	void _translation_res_option_delete(Object *p_item, int p_column, int p_button);
-
-	void _translation_filter_option_changed();
-	void _translation_filter_mode_changed(int p_mode);
-
-	void _translation_pot_add(const String &p_path);
-	void _translation_pot_delete(Object *p_item, int p_column, int p_button);
-	void _translation_pot_file_open();
-	void _translation_pot_generate_open();
-	void _translation_pot_generate(const String &p_file);
-	void _update_translation_pot_file_extensions();
+	void _copy_to_platform_about_to_show();
 
 	void _toggle_search_bar(bool p_pressed);
 
-	Variant get_drag_data_fw(const Point2 &p_point, Control *p_from);
-	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
-	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
-
-	void _copy_to_platform_about_to_show();
-
 	ProjectSettingsEditor();
 
 	static ProjectSettingsEditor *singleton;
 
-	Label *restart_label;
-	TextureRect *restart_icon;
-	PanelContainer *restart_container;
-	Button *restart_close_button;
-
 	void _editor_restart_request();
 	void _editor_restart();
 	void _editor_restart_close();
@@ -196,12 +110,7 @@ protected:
 	void _notification(int p_what);
 	static void _bind_methods();
 
-	int _get_current_device();
-	void _set_current_device(int i_device);
-	String _get_device_string(int i_device);
-
 public:
-	void add_translation(const String &p_translation);
 	static ProjectSettingsEditor *get_singleton() { return singleton; }
 	void popup_project_settings();
 	void set_plugins_page();