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web-example.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>WASM test</title>
</head>
<body>
<h1>Test</h1>
<div style="width: 800px">
<label for="fit">Fit:</label>
<select id="fit">
<option value="1" selected>Contain</option>
<option value="2">Fill</option>
<option value="3">Cover</option>
<option value="4">FitWidth</option>
<option value="5">FitHeight</option>
<option value="6">None</option>
</select>
<label for="align">Align:</label>
<select id="align">
<option value="0,0">top-left</option>
<option value="0.5,0">top-center</option>
<option value="1,0">top-right</option>
<option value="0,0.5">center-left</option>
<option value="0.5,0.5" selected>center</option>
<option value="1,0.5">center-right</option>
<option value="0,1">bottom-left</option>
<option value="0.5,1">bottom-center</option>
<option value="1,1">bottom-right</option>
</select>
<canvas
style="width: 100%; height: 100%; border: 1px solid black"
></canvas>
<button id="play">play</button>
<button id="pause">pause</button>
<button id="resize">resize</button>
<select id="theme-select">
<option value="">None</option>
<option value="theme">Theme</option>
</select>
<input
id="progress-bar"
type="range"
min="0"
max="100"
defaultValue="0"
step="0.01"
/>
<select id="mode">
<option value="1">Forward</option>
<option value="2">Reverse</option>
<option value="3">Bounce</option>
<option value="4">ReverseBounce</option>
</select>
</div>
<button id="jump">Jump</button>
<button id="speed-up">speed +</button>
<button id="speed-down">speed -</button>
<button id="loop">loopToggle</button>
<button id="next">Next</button>
<input id="bg-color" type="color" />
<div>
<label for="width">Rendering Area Width:</label>
<input id="width" type="range" min="0" max="1" step="0.01" value="1" />
<label for="height">Rendering Area Height:</label>
<input id="height" type="range" min="0" max="1" step="0.01" value="1" />
</div>
<script type="module">
import createDotLottiePlayerModule from "./release/wasm/DotLottiePlayer.mjs";
const playBtn = document.querySelector("#play");
const pauseBtn = document.querySelector("#pause");
const resizeBtn = document.querySelector("#resize");
const progressBar = document.querySelector("#progress-bar");
const jumpBtn = document.querySelector("#jump");
const modeSelect = document.querySelector("#mode");
const speedUpBtn = document.querySelector("#speed-up");
const speedDownBtn = document.querySelector("#speed-down");
const loopToggle = document.querySelector("#loop");
const nextBtn = document.querySelector("#next");
const bgColorInput = document.querySelector("#bg-color");
const fitSelect = document.querySelector("#fit");
const alignSelect = document.querySelector("#align");
const themeSelect = document.querySelector("#theme-select");
const renderAreaWidthInput = document.querySelector("#width");
const renderAreaHeightInput = document.querySelector("#height");
const Module = await createDotLottiePlayerModule({
locateFile: (path, prefix) => {
if (path.endsWith(".wasm")) {
return `release/wasm/${path}`;
}
return `${prefix}${path}`;
},
});
function createSegment(startFrame, endFrame) {
const vector = new Module.VectorFloat();
if (typeof startFrame === "number" && typeof endFrame === "number") {
vector.push_back(startFrame);
vector.push_back(endFrame);
}
return vector;
}
function createAlign(x, y) {
const vector = new Module.VectorFloat();
if (typeof x === "number" && typeof y === "number") {
vector.push_back(x);
vector.push_back(y);
}
return vector;
}
const dotLottiePlayer = new Module.DotLottiePlayer({
...Module.createDefaultConfig(),
autoplay: true,
loopAnimation: true,
mode: Module.Mode.values[3],
segment: createSegment(0, 40),
marker: "feather",
});
// const data = await fetch("./demo-player/src/markers.json").then((res) =>
// res.text()
// );
const data = await fetch(
// "https://lottie.host/5c89381e-0d1a-4422-8247-f5b7e4b3c4e2/mqs5juC4PW.lottie"
"./examples/demo-player/src/theming_example.lottie"
// "https://lottie.host/294b684d-d6b4-4116-ab35-85ef566d4379/VkGHcqcMUI.lottie",
// "https://lottie.host/edff17eb-9a84-41f7-810a-22b94fbf9143/uYveqJ1Kqn.lottie"
).then((res) => res.arrayBuffer());
const canvas = document.querySelector("canvas");
// const loaded = dotLottiePlayer.loadAnimationData(
// data,
// canvas.width,
// canvas.height
// );
const loaded = dotLottiePlayer.loadDotLottieData(
data,
canvas.width,
canvas.height
);
if (loaded) {
console.log({
width: dotLottiePlayer.animationSize().get(0),
height: dotLottiePlayer.animationSize().get(1),
});
resize();
}
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
mode: Module.Mode.values[1],
segment: createSegment(),
});
console.log(dotLottiePlayer.markers());
console.log("Loaded: ", loaded);
const ctx = canvas.getContext("2d");
let animationFrameId = null;
function animationLoop() {
const nextFrameNumber = dotLottiePlayer.requestFrame();
const updated = dotLottiePlayer.setFrame(nextFrameNumber);
if (updated) {
progressBar.value =
(dotLottiePlayer.currentFrame() / dotLottiePlayer.totalFrames()) *
100;
render();
if (dotLottiePlayer.isComplete()) {
if (dotLottiePlayer.config().loopAnimation) {
console.log("Loop Completed", dotLottiePlayer.loopCount());
} else {
console.log("Completed");
}
}
}
animationFrameId = requestAnimationFrame(animationLoop);
}
animationFrameId = requestAnimationFrame(animationLoop);
playBtn.addEventListener("click", () => {
dotLottiePlayer.play();
});
pauseBtn.addEventListener("click", () => {
dotLottiePlayer.pause();
});
jumpBtn.addEventListener("click", () => {
dotLottiePlayer.seek(44);
});
resizeBtn.addEventListener("click", () => {
resize();
});
progressBar.addEventListener("mousedown", () => {
cancelAnimationFrame(animationFrameId);
});
progressBar.addEventListener("mouseup", () => {
animationFrameId = requestAnimationFrame(animationLoop);
});
progressBar.addEventListener("input", (event) => {
const newFrame =
(event.target.value / 100) * dotLottiePlayer.totalFrames();
if (dotLottiePlayer.seek(newFrame)) {
render();
}
});
function resize() {
const { width: clientWidth, height: clientHeight } =
canvas.getBoundingClientRect();
const width = clientWidth * (window.devicePixelRatio || 1);
const height = clientHeight * (window.devicePixelRatio || 1);
canvas.width = width;
canvas.height = height;
dotLottiePlayer.resize(width, height);
}
function setViewport() {
const width = Number(renderAreaWidthInput.value) * canvas.width;
const height = Number(renderAreaHeightInput.value) * canvas.height;
dotLottiePlayer.setViewport(0, 0, width, height);
}
function render() {
setViewport();
const rendered = dotLottiePlayer.render();
if (rendered) {
const frameBuffer = dotLottiePlayer.buffer();
const imageData = ctx.createImageData(canvas.width, canvas.height);
imageData.data.set(frameBuffer);
ctx.putImageData(imageData, 0, 0);
}
}
modeSelect.addEventListener("change", (event) => {
const mode = Module.Mode.values[event.target.value];
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
mode,
});
});
speedUpBtn.addEventListener("click", () => {
const speed = dotLottiePlayer.config().speed + 0.1;
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
speed,
});
});
speedDownBtn.addEventListener("click", () => {
const speed = dotLottiePlayer.config().speed - 0.1;
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
speed: speed <= 0 ? 0.001 : speed,
});
});
loopToggle.addEventListener("click", () => {
const loopAnimation = !dotLottiePlayer.config().loopAnimation;
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
loopAnimation,
});
});
let i = 0;
nextBtn.addEventListener("click", () => {
const manifest = dotLottiePlayer.manifestString();
if (manifest) {
const animations = JSON.parse(manifest).animations;
if (i < animations.length) {
const animation = animations[i];
dotLottiePlayer.loadAnimation(
animation.id,
canvas.width,
canvas.height
);
i++;
} else {
i = 0;
}
}
});
bgColorInput.addEventListener("input", (event) => {
const color = parseInt(event.target.value.slice(1) + "ff", 16);
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
// the expected color is in the format of 0xRRGGBBAA and the alpha component is not provided by the input element
backgroundColor: (color << 8) | 0xff,
});
});
fitSelect.addEventListener("change", (event) => {
const fit = Module.Fit.values[event.target.value];
const layout = dotLottiePlayer.config().layout;
layout.fit = fit;
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
layout,
});
});
alignSelect.addEventListener("change", (event) => {
const [x, y] = event.target.value.split(",").map(Number);
const layout = dotLottiePlayer.config().layout;
layout.align = createAlign(x, y);
dotLottiePlayer.setConfig({
...dotLottiePlayer.config(),
layout,
});
});
themeSelect.addEventListener("change", (event) => {
const theme = event.target.value;
if (theme) {
dotLottiePlayer.loadTheme(theme);
} else {
dotLottiePlayer.loadTheme("");
}
});
</script>
</body>
</html>