77 lines
1.9 KiB
JavaScript
77 lines
1.9 KiB
JavaScript
// @flow
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import { Change } from 'slate';
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import uuid from 'uuid';
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import EditList from './plugins/EditList';
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import uploadFile from 'utils/uploadFile';
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const { changes } = EditList;
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type Options = {
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type: string | Object,
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wrapper?: string | Object,
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};
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export function splitAndInsertBlock(change: Change, options: Options) {
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const { type, wrapper } = options;
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const parent = change.value.document.getParent(change.value.startBlock.key);
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// lists get some special treatment
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if (parent && parent.type === 'list-item') {
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change
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.collapseToStart()
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.call(changes.splitListItem)
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.collapseToEndOfPreviousBlock()
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.call(changes.unwrapList);
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}
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change.insertBlock(type);
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if (wrapper) change.wrapBlock(wrapper);
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return change;
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}
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export async function insertImageFile(
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change: Change,
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file: window.File,
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onImageUploadStart: () => void,
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onImageUploadStop: () => void
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) {
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onImageUploadStart();
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try {
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// load the file as a data URL
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const id = uuid.v4();
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const alt = '';
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const reader = new FileReader();
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reader.addEventListener('load', () => {
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const src = reader.result;
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// insert into document as uploading placeholder
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change.insertBlock({
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type: 'image',
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isVoid: true,
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data: { src, id, alt, loading: true },
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});
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});
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reader.readAsDataURL(file);
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// now we have a placeholder, start the upload
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const asset = await uploadFile(file);
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const src = asset.url;
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// we dont use the original change provided to the callback here
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// as the state may have changed significantly in the time it took to
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// upload the file.
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const placeholder = change.value.document.findDescendant(
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node => node.data && node.data.get('id') === id
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);
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return change.setNodeByKey(placeholder.key, {
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data: { src, alt, loading: false },
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});
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} catch (err) {
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throw err;
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} finally {
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onImageUploadStop();
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}
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}
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