HTML5 start-up overhaul

- Implement promise-based JS interface for custom HTML page integration - Add download progress callback - Add progress bar and indeterminate spinner to default HTML page - Try downloading files multiple times when failing - Get rid of godotfs.js - Separate steps for engine initialization, game initialization and game start - Allow multiple games on one HTML page - Substitution placeholders only used in .html file - Placeholders renamed: $GODOT_BASE => $GODOT_BASENAME, $GODOT_TMEM -> $GODOT_TOTAL_MEMORY - Emscripten Module is now Engine.RuntimeEnvironment (no longer a global)
author: Leon Krause <lk@leonkrause.com> 2017-08-13 13:10:04 +0200
committer: Leon Krause <lk@leonkrause.com> 2017-09-11 20:56:29 +0200
commit: 4db801aaeac130a74197ab43e531ce2533414eb9 (patch)
tree: 65cb628baaea9b9c680557b41f603bba276306bf /misc/dist/html
parent: b4ad899ef64df6e341a4cbe52a15109cd3d6b2eb (diff)
1 files changed, 386 insertions, 0 deletions
diff --git a/misc/dist/html/default.html b/misc/dist/html/default.html
new file mode 100644
index 0000000000..9fae34f97e
--- /dev/null
+++ b/misc/dist/html/default.html
@@ -0,0 +1,386 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml" lang="" xml:lang="">
+<head>
+	<meta charset="utf-8" />
+	<title></title>
+	<style type="text/css">
+
+		body {
+			margin: 0;
+			border: 0 none;
+			padding: 0;
+			text-align: center;
+			background-color: #222226;
+			font-family: 'Noto Sans', Arial, sans-serif;
+		}
+
+
+		/* Godot Engine default theme style
+		 * ================================ */
+
+		.godot {
+			color: #e0e0e0;
+			background-color: #3b3943;
+			background-image: linear-gradient(to bottom, #403e48, #35333c);
+			border: 1px solid #45434e;
+			box-shadow: 0 0 1px 1px #2f2d35;
+		}
+
+		button.godot {
+			font-family: 'Droid Sans', Arial, sans-serif; /* override user agent style */
+			padding: 1px 5px;
+			background-color: #37353f;
+			background-image: linear-gradient(to bottom, #413e49, #3a3842);
+			border: 1px solid #514f5d;
+			border-radius: 1px;
+			box-shadow: 0 0 1px 1px #2a2930;
+		}
+
+		button.godot:hover {
+			color: #f0f0f0;
+			background-color: #44414e;
+			background-image: linear-gradient(to bottom, #494652, #423f4c);
+			border: 1px solid #5a5667;
+			box-shadow: 0 0 1px 1px #26252b;
+		}
+
+		button.godot:active {
+			color: #fff;
+			background-color: #3e3b46;
+			background-image: linear-gradient(to bottom, #36343d, #413e49);
+			border: 1px solid #4f4c59;
+			box-shadow: 0 0 1px 1px #26252b;
+		}
+
+		button.godot:disabled {
+			color: rgba(230, 230, 230, 0.2);
+			background-color: #3d3d3d;
+			background-image: linear-gradient(to bottom, #434343, #393939);
+			border: 1px solid #474747;
+			box-shadow: 0 0 1px 1px #2d2b33;
+		}
+
+
+		/* Canvas / wrapper
+		 * ================ */
+
+		#container {
+			display: inline-block; /* scale with canvas */
+			vertical-align: top; /* prevent extra height */
+			position: relative; /* root for absolutely positioned overlay */
+			margin: 0;
+			border: 0 none;
+			padding: 0;
+			background-color: #0c0c0c;
+		}
+
+		#canvas {
+			display: block;
+			margin: 0 auto;
+			color: white;
+		}
+
+		#canvas:focus {
+			outline: none;
+		}
+
+
+		/* Status display
+		 * ============== */
+
+		#status {
+			position: absolute;
+			left: 0;
+			top: 0;
+			right: 0;
+			bottom: 0;
+			display: flex;
+			justify-content: center;
+			align-items: center;
+			/* don't consume click events - make children visible explicitly */
+			visibility: hidden;
+		}
+
+		#status-progress {
+			width: 244px;
+			height: 7px;
+			background-color: #38363A;
+			border: 1px solid #444246;
+			padding: 1px;
+			box-shadow: 0 0 2px 1px #1B1C22;
+			border-radius: 2px;
+			visibility: visible;
+		}
+
+		#status-progress-inner {
+			height: 100%;
+			width: 0;
+			box-sizing: border-box;
+			transition: width 0.5s linear;
+			background-color: #202020;
+			border: 1px solid #222223;
+			box-shadow: 0 0 1px 1px #27282E;
+			border-radius: 3px;
+		}
+
+		#status-indeterminate {
+			visibility: visible;
+			position: relative;
+		}
+
+		#status-indeterminate > div {
+			width: 3px;
+			height: 0;
+			border-style: solid;
+			border-width: 6px 2px 0 2px;
+			border-color: #2b2b2b transparent transparent transparent;
+			transform-origin: center 14px;
+			position: absolute;
+		}
+
+		#status-indeterminate > div:nth-child(1) { transform: rotate( 22.5deg); }
+		#status-indeterminate > div:nth-child(2) { transform: rotate( 67.5deg); }
+		#status-indeterminate > div:nth-child(3) { transform: rotate(112.5deg); }
+		#status-indeterminate > div:nth-child(4) { transform: rotate(157.5deg); }
+		#status-indeterminate > div:nth-child(5) { transform: rotate(202.5deg); }
+		#status-indeterminate > div:nth-child(6) { transform: rotate(247.5deg); }
+		#status-indeterminate > div:nth-child(7) { transform: rotate(292.5deg); }
+		#status-indeterminate > div:nth-child(8) { transform: rotate(337.5deg); }
+
+		#status-notice {
+			margin: 0 100px;
+			line-height: 1.3;
+			visibility: visible;
+			padding: 4px 6px;
+			visibility: visible;
+		}
+
+
+		/* Debug output
+		 * ============ */
+
+		#output-panel {
+			display: none;
+			max-width: 700px;
+			font-size: small;
+			margin: 6px auto 0;
+			padding: 0 4px 4px;
+			text-align: left;
+			line-height: 2.2;
+		}
+
+		#output-header {
+			display: flex;
+			justify-content: space-between;
+			align-items: center;
+		}
+
+		#output-container {
+			padding: 6px;
+			background-color: #2c2a32;
+			box-shadow: inset 0 0 1px 1px #232127;
+			color: #bbb;
+		}
+
+		#output-scroll {
+			line-height: 1;
+			height: 12em;
+			overflow-y: scroll;
+			white-space: pre-wrap;
+			font-size: small;
+			font-family: "Lucida Console", Monaco, monospace;
+		}
+	</style>
+$GODOT_HEAD_INCLUDE
+</head>
+<body>
+	<div id="container">
+		<canvas id="canvas" oncontextmenu="event.preventDefault();" width="640" height="480">
+			HTML5 canvas appears to be unsupported in the current browser.<br />
+			Please try updating or use a different browser.
+		</canvas>
+		<div id="status">
+			<div id='status-progress' style='display: none;' oncontextmenu="event.preventDefault();"><div id ='status-progress-inner'></div></div>
+			<div id='status-indeterminate' style='display: none;' oncontextmenu="event.preventDefault();">
+				<div></div>
+				<div></div>
+				<div></div>
+				<div></div>
+				<div></div>
+				<div></div>
+				<div></div>
+				<div></div>
+			</div>
+			<div id="status-notice" class="godot" style='display: none;'></div>
+		</div>
+	</div>
+	<div id="output-panel" class="godot">
+		<div id="output-header">
+			Output:
+			<button id='output-clear' class='godot' type='button' autocomplete='off'>Clear</button>
+		</div>
+		<div id="output-container"><div id="output-scroll"></div></div>
+	</div>
+
+	<script type="text/javascript" src="$GODOT_BASENAME.js"></script>
+	<script type="text/javascript">//<![CDATA[
+
+		var game = new Engine;
+
+		(function() {
+
+			const BASENAME = '$GODOT_BASENAME';
+			const MEMORY_SIZE = $GODOT_TOTAL_MEMORY;
+			const DEBUG_ENABLED = $GODOT_DEBUG_ENABLED;
+			const INDETERMINATE_STATUS_STEP_MS = 100;
+
+			var container = document.getElementById('container');
+			var canvas = document.getElementById('canvas');
+			var statusProgress = document.getElementById('status-progress');
+			var statusProgressInner = document.getElementById('status-progress-inner');
+			var statusIndeterminate = document.getElementById('status-indeterminate');
+			var statusNotice = document.getElementById('status-notice');
+
+			var initializing = true;
+			var statusMode = 'hidden';
+			var indeterminiateStatusAnimationId = 0;
+
+			setStatusMode('indeterminate');
+			game.setCanvas(canvas);
+			game.setAsmjsMemorySize(MEMORY_SIZE);
+
+			function setStatusMode(mode) {
+
+				if (statusMode === mode || !initializing)
+					return;
+				[statusProgress, statusIndeterminate, statusNotice].forEach(elem => {
+					elem.style.display = 'none';
+				});
+				if (indeterminiateStatusAnimationId !== 0) {
+					cancelAnimationFrame(indeterminiateStatusAnimationId);
+					indeterminiateStatusAnimationId = 0;
+				}
+				switch (mode) {
+					case 'progress':
+						statusProgress.style.display = 'block';
+						break;
+					case 'indeterminate':
+						statusIndeterminate.style.display = 'block';
+						indeterminiateStatusAnimationId = requestAnimationFrame(animateStatusIndeterminate);
+						break;
+					case 'notice':
+						statusNotice.style.display = 'block';
+						break;
+					case 'hidden':
+						break;
+					default:
+						throw new Error("Invalid status mode");
+				}
+				statusMode = mode;
+			}
+
+			function animateStatusIndeterminate(ms) {
+				var i = Math.floor(ms / INDETERMINATE_STATUS_STEP_MS % 8);
+				if (statusIndeterminate.children[i].style.borderTopColor == '') {
+					Array.prototype.slice.call(statusIndeterminate.children).forEach(child => {
+						child.style.borderTopColor = '';
+					});
+					statusIndeterminate.children[i].style.borderTopColor = '#dfdfdf';
+				}
+				requestAnimationFrame(animateStatusIndeterminate);
+			}
+
+			function setStatusNotice(text) {
+
+				while (statusNotice.lastChild) {
+					statusNotice.removeChild(statusNotice.lastChild);
+				}
+				var lines = text.split('\n');
+				lines.forEach((line, index) => {
+					statusNotice.appendChild(document.createTextNode(line));
+					statusNotice.appendChild(document.createElement('br'));
+				});
+			};
+
+			game.setProgressFunc((current, total) => {
+
+				if (total > 0) {
+					statusProgressInner.style.width = current/total * 100 + '%';
+					setStatusMode('progress');
+					if (current === total) {
+						// wait for progress bar animation
+						setTimeout(() => {
+							setStatusMode('indeterminate');
+						}, 500);
+					}
+				} else {
+					setStatusMode('indeterminate');
+				}
+			});
+
+			if (DEBUG_ENABLED) {
+				var outputRoot = document.getElementById("output-panel");
+				var outputScroll = document.getElementById("output-scroll");
+				var OUTPUT_MSG_COUNT_MAX = 400;
+
+				document.getElementById('output-clear').addEventListener('click', () => {
+					while (outputScroll.firstChild) {
+						outputScroll.firstChild.remove();
+					}
+				});
+
+				outputRoot.style.display = 'block';
+
+				function print(text) {
+					if (arguments.length > 1) {
+						text = Array.prototype.slice.call(arguments).join(" ");
+					}
+					if (text.length <= 0) return;
+					while (outputScroll.childElementCount >= OUTPUT_MSG_COUNT_MAX) {
+						outputScroll.firstChild.remove();
+					}
+					var msg = document.createElement("div");
+					if (String.prototype.trim.call(text).startsWith("**ERROR**")) {
+						msg.style.color = "#d44";
+					} else if (String.prototype.trim.call(text).startsWith("**WARNING**")) {
+						msg.style.color = "#ccc000";
+					} else if (String.prototype.trim.call(text).startsWith("**SCRIPT ERROR**")) {
+						msg.style.color = "#c6d";
+					}
+					msg.textContent = text;
+					var scrollToBottom = outputScroll.scrollHeight - (outputScroll.clientHeight + outputScroll.scrollTop) < 10;
+					outputScroll.appendChild(msg);
+					if (scrollToBottom) {
+						outputScroll.scrollTop = outputScroll.scrollHeight;
+					}
+				};
+
+				function printError(text) {
+					print('**ERROR**' + ":", text);
+				}
+
+				game.setStdoutFunc(text => {
+					print(text);
+					console.log(text);
+				});
+
+				game.setStderrFunc(text => {
+					printError(text);
+					console.warn(text);
+				});
+			}
+
+			game.start(BASENAME + '.pck').then(() => {
+				setStatusMode('hidden');
+				initializing = false;
+			}, err => {
+				if (DEBUG_ENABLED)
+					printError(err.message);
+				setStatusNotice(err.message);
+				setStatusMode('notice');
+				initializing = false;
+			});
+		})();
+	//]]></script>
+</body>
+</html>
author	Leon Krause <lk@leonkrause.com>	2017-08-13 13:10:04 +0200
committer	Leon Krause <lk@leonkrause.com>	2017-09-11 20:56:29 +0200
commit	4db801aaeac130a74197ab43e531ce2533414eb9 (patch)
tree	65cb628baaea9b9c680557b41f603bba276306bf /misc/dist/html
parent	b4ad899ef64df6e341a4cbe52a15109cd3d6b2eb (diff)