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File size: 2,842 Bytes
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/**
* @param {ArrayBuffer} buffer
* @param {string} name
* @returns {FileList}
*/
const toFileList = (buffer, name) => {
if (!name) {
// This name should not be changed.
name = 'Untitled';
}
const file = new File([buffer], name);
const dataTransfer = new DataTransfer();
dataTransfer.items.add(file);
return dataTransfer.files;
};
const importFromParent = ({
origin,
onStartImporting,
onFinishImporting,
onCancelImporting
}) => {
if (!origin.startsWith('http:') && !origin.startsWith('https:')) {
console.warn('Import ignored: invalid origin');
return;
}
const opener = window.opener || window.parent;
if (!opener || opener === window) {
console.warn('Import ignored: cannot find parent window or opener');
return;
}
const postToParent = (data) => {
// postMessage could throw if origin is invalid
try {
opener.postMessage({
p4: data
}, origin);
} catch (e) {
console.warn('Cannot post message', e);
}
};
let hasStarted = false;
let hasFinishedOrCancelled = false;
const onMessage = (e) => {
if (e.origin !== origin) {
return;
}
const data = e.data && e.data.p4;
if (!data) {
return;
}
if (!hasStarted) {
if (data.type === 'start-import') {
hasStarted = true;
onStartImporting();
}
} else if (!hasFinishedOrCancelled) {
if (data.type === 'finish-import') {
cleanup();
onFinishImporting(toFileList(data.data, data.name));
} else if (data.type === 'cancel-import') {
cleanup();
onCancelImporting();
}
}
};
window.addEventListener('message', onMessage);
const cleanup = () => {
hasFinishedOrCancelled = true;
window.removeEventListener('message', onMessage);
};
postToParent({
type: 'ready-for-import'
});
};
const importFromAPI = async ({
onStartImporting,
onFinishImporting,
onCancelImporting
}) => {
try {
onStartImporting();
const {data, name} = await GlobalPackagerImporter();
onFinishImporting(toFileList(data, name));
} catch (e) {
onCancelImporting();
}
};
const importProject = ({
onStartImporting,
onFinishImporting,
onCancelImporting
}) => {
if (typeof GlobalPackagerImporter === 'function') {
importFromAPI({
onStartImporting,
onFinishImporting,
onCancelImporting
});
return;
}
const searchParams = new URLSearchParams(location.search);
if (searchParams.has('import_from')) {
importFromParent({
origin: searchParams.get('import_from'),
onStartImporting,
onFinishImporting,
onCancelImporting
});
}
};
export default importProject;
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