mdx-m3-viewer
Version:
A browser WebGL model viewer. Mainly focused on models of the games Warcraft 3 and Starcraft 2.
65 lines • 2.04 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.fetchDataType = void 0;
/**
* Returns a promise that will resolve with the data from the given path.
*
* The data type determines the returned object:
*
* "image" => Image
* "text" => string
* "arrayBuffer" => ArrayBuffer
* "bytes" => Uint8Array
* "blob" => Blob
*/
async function fetchDataType(path, dataType) {
if (dataType === 'image') {
// Promise wrapper for an image load.
return new Promise((resolve) => {
const image = new Image();
image.onload = () => {
resolve({ ok: true, data: image });
};
image.onerror = (e) => {
resolve({ ok: false, error: 'Image Error', data: e });
};
image.src = path;
});
}
else {
let response;
// Fetch.
try {
response = await fetch(path);
}
catch (e) {
return { ok: false, error: 'Network Error', data: e };
}
// Fetch went ok?
if (!response.ok) {
return { ok: false, error: 'Http Error', data: response };
}
// Try to get the requested data type.
try {
let data = null;
if (dataType === 'text') {
data = await response.text();
}
else if (dataType === 'arrayBuffer' || dataType === 'bytes') {
data = await response.arrayBuffer();
}
else if (dataType === 'blob') {
data = await response.blob();
}
if (dataType === 'bytes') {
data = new Uint8Array(data);
}
return { ok: true, data };
}
catch (e) {
return { ok: false, error: 'Data Error', data: e };
}
}
}
exports.fetchDataType = fetchDataType;
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