651 lines
21 KiB
JavaScript
651 lines
21 KiB
JavaScript
/*************************************************************************/
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/* library_godot_display.js */
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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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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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const GodotDisplayVK = {
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$GodotDisplayVK__deps: ['$GodotRuntime', '$GodotConfig', '$GodotEventListeners'],
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$GodotDisplayVK__postset: 'GodotOS.atexit(function(resolve, reject) { GodotDisplayVK.clear(); resolve(); });',
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$GodotDisplayVK: {
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textinput: null,
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textarea: null,
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available: function () {
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return GodotConfig.virtual_keyboard && 'ontouchstart' in window;
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},
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init: function (input_cb) {
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function create(what) {
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const elem = document.createElement(what);
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elem.style.display = 'none';
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elem.style.position = 'absolute';
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elem.style.zIndex = '-1';
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elem.style.background = 'transparent';
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elem.style.padding = '0px';
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elem.style.margin = '0px';
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elem.style.overflow = 'hidden';
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elem.style.width = '0px';
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elem.style.height = '0px';
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elem.style.border = '0px';
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elem.style.outline = 'none';
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elem.readonly = true;
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elem.disabled = true;
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GodotEventListeners.add(elem, 'input', function (evt) {
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const c_str = GodotRuntime.allocString(elem.value);
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input_cb(c_str, elem.selectionEnd);
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GodotRuntime.free(c_str);
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}, false);
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GodotEventListeners.add(elem, 'blur', function (evt) {
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elem.style.display = 'none';
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elem.readonly = true;
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elem.disabled = true;
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}, false);
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GodotConfig.canvas.insertAdjacentElement('beforebegin', elem);
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return elem;
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}
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GodotDisplayVK.textinput = create('input');
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GodotDisplayVK.textarea = create('textarea');
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GodotDisplayVK.updateSize();
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},
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show: function (text, multiline, start, end) {
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if (!GodotDisplayVK.textinput || !GodotDisplayVK.textarea) {
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return;
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}
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if (GodotDisplayVK.textinput.style.display !== '' || GodotDisplayVK.textarea.style.display !== '') {
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GodotDisplayVK.hide();
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}
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GodotDisplayVK.updateSize();
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const elem = multiline ? GodotDisplayVK.textarea : GodotDisplayVK.textinput;
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elem.readonly = false;
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elem.disabled = false;
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elem.value = text;
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elem.style.display = 'block';
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elem.focus();
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elem.setSelectionRange(start, end);
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},
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hide: function () {
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if (!GodotDisplayVK.textinput || !GodotDisplayVK.textarea) {
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return;
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}
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[GodotDisplayVK.textinput, GodotDisplayVK.textarea].forEach(function (elem) {
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elem.blur();
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elem.style.display = 'none';
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elem.value = '';
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});
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},
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updateSize: function () {
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if (!GodotDisplayVK.textinput || !GodotDisplayVK.textarea) {
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return;
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}
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const rect = GodotConfig.canvas.getBoundingClientRect();
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function update(elem) {
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elem.style.left = `${rect.left}px`;
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elem.style.top = `${rect.top}px`;
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elem.style.width = `${rect.width}px`;
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elem.style.height = `${rect.height}px`;
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}
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update(GodotDisplayVK.textinput);
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update(GodotDisplayVK.textarea);
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},
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clear: function () {
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if (GodotDisplayVK.textinput) {
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GodotDisplayVK.textinput.remove();
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GodotDisplayVK.textinput = null;
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}
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if (GodotDisplayVK.textarea) {
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GodotDisplayVK.textarea.remove();
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GodotDisplayVK.textarea = null;
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}
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},
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},
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};
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mergeInto(LibraryManager.library, GodotDisplayVK);
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/*
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* Display server cursor helper.
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* Keeps track of cursor status and custom shapes.
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*/
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const GodotDisplayCursor = {
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$GodotDisplayCursor__deps: ['$GodotOS', '$GodotConfig'],
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$GodotDisplayCursor__postset: 'GodotOS.atexit(function(resolve, reject) { GodotDisplayCursor.clear(); resolve(); });',
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$GodotDisplayCursor: {
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shape: 'auto',
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visible: true,
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cursors: {},
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set_style: function (style) {
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GodotConfig.canvas.style.cursor = style;
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},
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set_shape: function (shape) {
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GodotDisplayCursor.shape = shape;
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let css = shape;
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if (shape in GodotDisplayCursor.cursors) {
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const c = GodotDisplayCursor.cursors[shape];
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css = `url("${c.url}") ${c.x} ${c.y}, auto`;
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}
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if (GodotDisplayCursor.visible) {
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GodotDisplayCursor.set_style(css);
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}
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},
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clear: function () {
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GodotDisplayCursor.set_style('');
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GodotDisplayCursor.shape = 'auto';
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GodotDisplayCursor.visible = true;
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Object.keys(GodotDisplayCursor.cursors).forEach(function (key) {
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URL.revokeObjectURL(GodotDisplayCursor.cursors[key]);
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delete GodotDisplayCursor.cursors[key];
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});
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},
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lockPointer: function () {
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const canvas = GodotConfig.canvas;
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if (canvas.requestPointerLock) {
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canvas.requestPointerLock();
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}
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},
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releasePointer: function () {
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if (document.exitPointerLock) {
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document.exitPointerLock();
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}
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},
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isPointerLocked: function () {
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return document.pointerLockElement === GodotConfig.canvas;
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},
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},
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};
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mergeInto(LibraryManager.library, GodotDisplayCursor);
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const GodotDisplayScreen = {
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$GodotDisplayScreen__deps: ['$GodotConfig', '$GodotOS', '$GL', 'emscripten_webgl_get_current_context'],
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$GodotDisplayScreen: {
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desired_size: [0, 0],
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hidpi: true,
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getPixelRatio: function () {
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return GodotDisplayScreen.hidpi ? window.devicePixelRatio || 1 : 1;
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},
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isFullscreen: function () {
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const elem = document.fullscreenElement || document.mozFullscreenElement
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|| document.webkitFullscreenElement || document.msFullscreenElement;
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if (elem) {
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return elem === GodotConfig.canvas;
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}
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// But maybe knowing the element is not supported.
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return document.fullscreen || document.mozFullScreen
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|| document.webkitIsFullscreen;
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},
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hasFullscreen: function () {
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return document.fullscreenEnabled || document.mozFullScreenEnabled
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|| document.webkitFullscreenEnabled;
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},
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requestFullscreen: function () {
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if (!GodotDisplayScreen.hasFullscreen()) {
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return 1;
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}
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const canvas = GodotConfig.canvas;
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try {
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const promise = (canvas.requestFullscreen || canvas.msRequestFullscreen
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|| canvas.mozRequestFullScreen || canvas.mozRequestFullscreen
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|| canvas.webkitRequestFullscreen
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).call(canvas);
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// Some browsers (Safari) return undefined.
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// For the standard ones, we need to catch it.
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if (promise) {
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promise.catch(function () {
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// nothing to do.
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});
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}
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} catch (e) {
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return 1;
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}
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return 0;
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},
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exitFullscreen: function () {
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if (!GodotDisplayScreen.isFullscreen()) {
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return 0;
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}
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try {
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const promise = document.exitFullscreen();
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if (promise) {
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promise.catch(function () {
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// nothing to do.
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});
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}
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} catch (e) {
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return 1;
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}
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return 0;
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},
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_updateGL: function () {
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const gl_context_handle = _emscripten_webgl_get_current_context(); // eslint-disable-line no-undef
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const gl = GL.getContext(gl_context_handle);
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if (gl) {
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GL.resizeOffscreenFramebuffer(gl);
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}
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},
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updateSize: function () {
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const isFullscreen = GodotDisplayScreen.isFullscreen();
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const wantsFullWindow = GodotConfig.canvas_resize_policy === 2;
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const noResize = GodotConfig.canvas_resize_policy === 0;
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const wwidth = GodotDisplayScreen.desired_size[0];
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const wheight = GodotDisplayScreen.desired_size[1];
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const canvas = GodotConfig.canvas;
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let width = wwidth;
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let height = wheight;
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if (noResize) {
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// Don't resize canvas, just update GL if needed.
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if (canvas.width !== width || canvas.height !== height) {
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GodotDisplayScreen.desired_size = [canvas.width, canvas.height];
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GodotDisplayScreen._updateGL();
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return 1;
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}
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return 0;
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}
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const scale = GodotDisplayScreen.getPixelRatio();
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if (isFullscreen || wantsFullWindow) {
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// We need to match screen size.
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width = window.innerWidth * scale;
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height = window.innerHeight * scale;
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}
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const csw = `${width / scale}px`;
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const csh = `${height / scale}px`;
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if (canvas.style.width !== csw || canvas.style.height !== csh || canvas.width !== width || canvas.height !== height) {
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// Size doesn't match.
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// Resize canvas, set correct CSS pixel size, update GL.
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canvas.width = width;
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canvas.height = height;
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canvas.style.width = csw;
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canvas.style.height = csh;
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GodotDisplayScreen._updateGL();
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return 1;
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}
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return 0;
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},
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},
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};
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mergeInto(LibraryManager.library, GodotDisplayScreen);
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/**
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* Display server interface.
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*
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* Exposes all the functions needed by DisplayServer implementation.
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*/
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const GodotDisplay = {
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$GodotDisplay__deps: ['$GodotConfig', '$GodotRuntime', '$GodotDisplayCursor', '$GodotEventListeners', '$GodotDisplayScreen', '$GodotDisplayVK'],
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$GodotDisplay: {
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window_icon: '',
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findDPI: function () {
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function testDPI(dpi) {
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return window.matchMedia(`(max-resolution: ${dpi}dpi)`).matches;
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}
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function bisect(low, high, func) {
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const mid = parseInt(((high - low) / 2) + low, 10);
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if (high - low <= 1) {
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return func(high) ? high : low;
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}
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if (func(mid)) {
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return bisect(low, mid, func);
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}
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return bisect(mid, high, func);
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}
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try {
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const dpi = bisect(0, 800, testDPI);
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return dpi >= 96 ? dpi : 96;
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} catch (e) {
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return 96;
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}
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},
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},
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// This is implemented as "glGetBufferSubData" in new emscripten versions.
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// Since we have to support older (pre 2.0.17) emscripten versions, we add this wrapper function instead.
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godot_js_display_glGetBufferSubData__sig: 'viiii',
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godot_js_display_glGetBufferSubData__deps: ['$GL', 'emscripten_webgl_get_current_context'],
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godot_js_display_glGetBufferSubData: function (target, offset, size, data) {
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const gl_context_handle = _emscripten_webgl_get_current_context(); // eslint-disable-line no-undef
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const gl = GL.getContext(gl_context_handle);
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if (gl) {
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gl.GLctx['getBufferSubData'](target, offset, HEAPU8, data, size);
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}
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},
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godot_js_display_is_swap_ok_cancel__sig: 'i',
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godot_js_display_is_swap_ok_cancel: function () {
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const win = (['Windows', 'Win64', 'Win32', 'WinCE']);
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const plat = navigator.platform || '';
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if (win.indexOf(plat) !== -1) {
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return 1;
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}
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return 0;
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},
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godot_js_display_alert__sig: 'vi',
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godot_js_display_alert: function (p_text) {
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window.alert(GodotRuntime.parseString(p_text)); // eslint-disable-line no-alert
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},
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godot_js_display_screen_dpi_get__sig: 'i',
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godot_js_display_screen_dpi_get: function () {
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return GodotDisplay.findDPI();
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},
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godot_js_display_pixel_ratio_get__sig: 'f',
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godot_js_display_pixel_ratio_get: function () {
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return GodotDisplayScreen.getPixelRatio();
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},
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godot_js_display_fullscreen_request__sig: 'i',
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godot_js_display_fullscreen_request: function () {
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return GodotDisplayScreen.requestFullscreen();
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},
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godot_js_display_fullscreen_exit__sig: 'i',
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godot_js_display_fullscreen_exit: function () {
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return GodotDisplayScreen.exitFullscreen();
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},
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godot_js_display_desired_size_set__sig: 'vii',
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godot_js_display_desired_size_set: function (width, height) {
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GodotDisplayScreen.desired_size = [width, height];
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GodotDisplayScreen.updateSize();
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},
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godot_js_display_size_update__sig: 'i',
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godot_js_display_size_update: function () {
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const updated = GodotDisplayScreen.updateSize();
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if (updated) {
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GodotDisplayVK.updateSize();
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}
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return updated;
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},
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godot_js_display_screen_size_get__sig: 'vii',
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godot_js_display_screen_size_get: function (width, height) {
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const scale = GodotDisplayScreen.getPixelRatio();
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GodotRuntime.setHeapValue(width, window.screen.width * scale, 'i32');
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GodotRuntime.setHeapValue(height, window.screen.height * scale, 'i32');
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},
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godot_js_display_window_size_get: function (p_width, p_height) {
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GodotRuntime.setHeapValue(p_width, GodotConfig.canvas.width, 'i32');
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GodotRuntime.setHeapValue(p_height, GodotConfig.canvas.height, 'i32');
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},
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godot_js_display_has_webgl__sig: 'ii',
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godot_js_display_has_webgl: function (p_version) {
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if (p_version !== 1 && p_version !== 2) {
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return false;
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}
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try {
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return !!document.createElement('canvas').getContext(p_version === 2 ? 'webgl2' : 'webgl');
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} catch (e) { /* Not available */ }
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return false;
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},
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/*
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* Canvas
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*/
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godot_js_display_canvas_focus__sig: 'v',
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godot_js_display_canvas_focus: function () {
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GodotConfig.canvas.focus();
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},
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godot_js_display_canvas_is_focused__sig: 'i',
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godot_js_display_canvas_is_focused: function () {
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return document.activeElement === GodotConfig.canvas;
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},
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/*
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* Touchscreen
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*/
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godot_js_display_touchscreen_is_available__sig: 'i',
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godot_js_display_touchscreen_is_available: function () {
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return 'ontouchstart' in window;
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},
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/*
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* Clipboard
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*/
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godot_js_display_clipboard_set__sig: 'ii',
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godot_js_display_clipboard_set: function (p_text) {
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const text = GodotRuntime.parseString(p_text);
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if (!navigator.clipboard || !navigator.clipboard.writeText) {
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return 1;
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}
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navigator.clipboard.writeText(text).catch(function (e) {
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// Setting OS clipboard is only possible from an input callback.
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GodotRuntime.error('Setting OS clipboard is only possible from an input callback for the HTML5 plafrom. Exception:', e);
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});
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return 0;
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},
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godot_js_display_clipboard_get__sig: 'ii',
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godot_js_display_clipboard_get: function (callback) {
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const func = GodotRuntime.get_func(callback);
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try {
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navigator.clipboard.readText().then(function (result) {
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const ptr = GodotRuntime.allocString(result);
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func(ptr);
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GodotRuntime.free(ptr);
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}).catch(function (e) {
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// Fail graciously.
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});
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} catch (e) {
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// Fail graciously.
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}
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},
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/*
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* Window
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*/
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godot_js_display_window_title_set__sig: 'vi',
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godot_js_display_window_title_set: function (p_data) {
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document.title = GodotRuntime.parseString(p_data);
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},
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godot_js_display_window_icon_set__sig: 'vii',
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godot_js_display_window_icon_set: function (p_ptr, p_len) {
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let link = document.getElementById('-gd-engine-icon');
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if (link === null) {
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link = document.createElement('link');
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link.rel = 'icon';
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link.id = '-gd-engine-icon';
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document.head.appendChild(link);
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}
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const old_icon = GodotDisplay.window_icon;
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const png = new Blob([GodotRuntime.heapSlice(HEAPU8, p_ptr, p_len)], { type: 'image/png' });
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GodotDisplay.window_icon = URL.createObjectURL(png);
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link.href = GodotDisplay.window_icon;
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if (old_icon) {
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URL.revokeObjectURL(old_icon);
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}
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},
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/*
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* Cursor
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*/
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godot_js_display_cursor_set_visible__sig: 'vi',
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godot_js_display_cursor_set_visible: function (p_visible) {
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const visible = p_visible !== 0;
|
|
if (visible === GodotDisplayCursor.visible) {
|
|
return;
|
|
}
|
|
GodotDisplayCursor.visible = visible;
|
|
if (visible) {
|
|
GodotDisplayCursor.set_shape(GodotDisplayCursor.shape);
|
|
} else {
|
|
GodotDisplayCursor.set_style('none');
|
|
}
|
|
},
|
|
|
|
godot_js_display_cursor_is_hidden__sig: 'i',
|
|
godot_js_display_cursor_is_hidden: function () {
|
|
return !GodotDisplayCursor.visible;
|
|
},
|
|
|
|
godot_js_display_cursor_set_shape__sig: 'vi',
|
|
godot_js_display_cursor_set_shape: function (p_string) {
|
|
GodotDisplayCursor.set_shape(GodotRuntime.parseString(p_string));
|
|
},
|
|
|
|
godot_js_display_cursor_set_custom_shape__sig: 'viiiii',
|
|
godot_js_display_cursor_set_custom_shape: function (p_shape, p_ptr, p_len, p_hotspot_x, p_hotspot_y) {
|
|
const shape = GodotRuntime.parseString(p_shape);
|
|
const old_shape = GodotDisplayCursor.cursors[shape];
|
|
if (p_len > 0) {
|
|
const png = new Blob([GodotRuntime.heapSlice(HEAPU8, p_ptr, p_len)], { type: 'image/png' });
|
|
const url = URL.createObjectURL(png);
|
|
GodotDisplayCursor.cursors[shape] = {
|
|
url: url,
|
|
x: p_hotspot_x,
|
|
y: p_hotspot_y,
|
|
};
|
|
} else {
|
|
delete GodotDisplayCursor.cursors[shape];
|
|
}
|
|
if (shape === GodotDisplayCursor.shape) {
|
|
GodotDisplayCursor.set_shape(GodotDisplayCursor.shape);
|
|
}
|
|
if (old_shape) {
|
|
URL.revokeObjectURL(old_shape.url);
|
|
}
|
|
},
|
|
|
|
godot_js_display_cursor_lock_set__sig: 'vi',
|
|
godot_js_display_cursor_lock_set: function (p_lock) {
|
|
if (p_lock) {
|
|
GodotDisplayCursor.lockPointer();
|
|
} else {
|
|
GodotDisplayCursor.releasePointer();
|
|
}
|
|
},
|
|
|
|
godot_js_display_cursor_is_locked__sig: 'i',
|
|
godot_js_display_cursor_is_locked: function () {
|
|
return GodotDisplayCursor.isPointerLocked() ? 1 : 0;
|
|
},
|
|
|
|
/*
|
|
* Listeners
|
|
*/
|
|
godot_js_display_fullscreen_cb__sig: 'vi',
|
|
godot_js_display_fullscreen_cb: function (callback) {
|
|
const canvas = GodotConfig.canvas;
|
|
const func = GodotRuntime.get_func(callback);
|
|
function change_cb(evt) {
|
|
if (evt.target === canvas) {
|
|
func(GodotDisplayScreen.isFullscreen());
|
|
}
|
|
}
|
|
GodotEventListeners.add(document, 'fullscreenchange', change_cb, false);
|
|
GodotEventListeners.add(document, 'mozfullscreenchange', change_cb, false);
|
|
GodotEventListeners.add(document, 'webkitfullscreenchange', change_cb, false);
|
|
},
|
|
|
|
godot_js_display_window_blur_cb__sig: 'vi',
|
|
godot_js_display_window_blur_cb: function (callback) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
GodotEventListeners.add(window, 'blur', function () {
|
|
func();
|
|
}, false);
|
|
},
|
|
|
|
godot_js_display_notification_cb__sig: 'viiiii',
|
|
godot_js_display_notification_cb: function (callback, p_enter, p_exit, p_in, p_out) {
|
|
const canvas = GodotConfig.canvas;
|
|
const func = GodotRuntime.get_func(callback);
|
|
const notif = [p_enter, p_exit, p_in, p_out];
|
|
['mouseover', 'mouseleave', 'focus', 'blur'].forEach(function (evt_name, idx) {
|
|
GodotEventListeners.add(canvas, evt_name, function () {
|
|
func(notif[idx]);
|
|
}, true);
|
|
});
|
|
},
|
|
|
|
godot_js_display_setup_canvas__sig: 'viiii',
|
|
godot_js_display_setup_canvas: function (p_width, p_height, p_fullscreen, p_hidpi) {
|
|
const canvas = GodotConfig.canvas;
|
|
GodotEventListeners.add(canvas, 'contextmenu', function (ev) {
|
|
ev.preventDefault();
|
|
}, false);
|
|
GodotEventListeners.add(canvas, 'webglcontextlost', function (ev) {
|
|
alert('WebGL context lost, please reload the page'); // eslint-disable-line no-alert
|
|
ev.preventDefault();
|
|
}, false);
|
|
GodotDisplayScreen.hidpi = !!p_hidpi;
|
|
switch (GodotConfig.canvas_resize_policy) {
|
|
case 0: // None
|
|
GodotDisplayScreen.desired_size = [canvas.width, canvas.height];
|
|
break;
|
|
case 1: // Project
|
|
GodotDisplayScreen.desired_size = [p_width, p_height];
|
|
break;
|
|
default: // Full window
|
|
// Ensure we display in the right place, the size will be handled by updateSize
|
|
canvas.style.position = 'absolute';
|
|
canvas.style.top = 0;
|
|
canvas.style.left = 0;
|
|
break;
|
|
}
|
|
GodotDisplayScreen.updateSize();
|
|
if (p_fullscreen) {
|
|
GodotDisplayScreen.requestFullscreen();
|
|
}
|
|
},
|
|
|
|
/*
|
|
* Virtual Keyboard
|
|
*/
|
|
godot_js_display_vk_show__sig: 'viiii',
|
|
godot_js_display_vk_show: function (p_text, p_multiline, p_start, p_end) {
|
|
const text = GodotRuntime.parseString(p_text);
|
|
const start = p_start > 0 ? p_start : 0;
|
|
const end = p_end > 0 ? p_end : start;
|
|
GodotDisplayVK.show(text, p_multiline, start, end);
|
|
},
|
|
|
|
godot_js_display_vk_hide__sig: 'v',
|
|
godot_js_display_vk_hide: function () {
|
|
GodotDisplayVK.hide();
|
|
},
|
|
|
|
godot_js_display_vk_available__sig: 'i',
|
|
godot_js_display_vk_available: function () {
|
|
return GodotDisplayVK.available();
|
|
},
|
|
|
|
godot_js_display_vk_cb__sig: 'vi',
|
|
godot_js_display_vk_cb: function (p_input_cb) {
|
|
const input_cb = GodotRuntime.get_func(p_input_cb);
|
|
if (GodotDisplayVK.available()) {
|
|
GodotDisplayVK.init(input_cb);
|
|
}
|
|
},
|
|
};
|
|
|
|
autoAddDeps(GodotDisplay, '$GodotDisplay');
|
|
mergeInto(LibraryManager.library, GodotDisplay);
|