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+/*************************************************************************/
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+/* listener_2d.cpp */
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+/*************************************************************************/
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+/* This file is part of: */
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+/* GODOT ENGINE */
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+/* https://godotengine.org */
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+/*************************************************************************/
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+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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+/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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+/* */
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+/* Permission is hereby granted, free of charge, to any person obtaining */
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+/* a copy of this software and associated documentation files (the */
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+/* "Software"), to deal in the Software without restriction, including */
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+/* without limitation the rights to use, copy, modify, merge, publish, */
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+/* distribute, sublicense, and/or sell copies of the Software, and to */
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+/* permit persons to whom the Software is furnished to do so, subject to */
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+/* the following conditions: */
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+/* */
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+/* The above copyright notice and this permission notice shall be */
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+/* included in all copies or substantial portions of the Software. */
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+/* */
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+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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+/*************************************************************************/
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+
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+#include "listener_2d.h"
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+
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+bool Listener2D::_set(const StringName &p_name, const Variant &p_value) {
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+ if (p_name == "current") {
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+ if (p_value.operator bool()) {
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+ make_current();
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+ } else {
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+ clear_current();
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+ }
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+ } else {
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+ return false;
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+ }
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+ return true;
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+}
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+
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+bool Listener2D::_get(const StringName &p_name, Variant &r_ret) const {
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+ if (p_name == "current") {
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+ if (is_inside_tree() && get_tree()->is_node_being_edited(this)) {
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+ r_ret = current;
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+ } else {
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+ r_ret = is_current();
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+ }
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+ } else {
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+ return false;
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+ }
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+ return true;
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+}
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+
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+void Listener2D::_get_property_list(List<PropertyInfo> *p_list) const {
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+ p_list->push_back(PropertyInfo(Variant::BOOL, "current"));
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+}
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+
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+void Listener2D::_notification(int p_what) {
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+ switch (p_what) {
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+ case NOTIFICATION_ENTER_TREE: {
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+ if (!get_tree()->is_node_being_edited(this) && current) {
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+ make_current();
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+ }
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+ } break;
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+ case NOTIFICATION_EXIT_TREE: {
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+ if (!get_tree()->is_node_being_edited(this)) {
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+ if (is_current()) {
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+ clear_current();
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+ current = true; // Keep it true.
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+ } else {
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+ current = false;
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+ }
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+ }
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+ } break;
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+ }
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+}
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+
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+void Listener2D::make_current() {
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+ current = true;
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+ if (!is_inside_tree()) {
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+ return;
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+ }
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+ get_viewport()->_listener_2d_set(this);
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+}
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+
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+void Listener2D::clear_current() {
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+ current = false;
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+ if (!is_inside_tree()) {
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+ return;
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+ }
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+ get_viewport()->_listener_2d_remove(this);
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+}
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+
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+bool Listener2D::is_current() const {
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+ if (is_inside_tree() && !get_tree()->is_node_being_edited(this)) {
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+ return get_viewport()->get_listener_2d() == this;
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+ } else {
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+ return current;
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+ }
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+ return false;
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+}
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+
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+void Listener2D::_bind_methods() {
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+ ClassDB::bind_method(D_METHOD("make_current"), &Listener2D::make_current);
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+ ClassDB::bind_method(D_METHOD("clear_current"), &Listener2D::clear_current);
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+ ClassDB::bind_method(D_METHOD("is_current"), &Listener2D::is_current);
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+}
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kobewi
