kopia lustrzana https://github.com/Tldraw/Tldraw
54 wiersze
1.9 KiB
JavaScript
54 wiersze
1.9 KiB
JavaScript
/**
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* Copyright 2020 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// @license © 2020 Google LLC. Licensed under the Apache License, Version 2.0.
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/**
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* Opens a file from disk using the legacy `<input type="file">` method.
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* @type { typeof import("../../index").fileOpen }
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*/
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export default async (options = [{}]) => {
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if (!Array.isArray(options)) {
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options = [options]
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}
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return new Promise((resolve, reject) => {
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const input = document.createElement('input')
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input.type = 'file'
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const accept = [
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...options.map((option) => option.mimeTypes || []).join(),
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options.map((option) => option.extensions || []).join(),
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].join()
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input.multiple = options[0].multiple || false
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// Empty string allows everything.
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input.accept = accept || ''
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const _reject = () => cleanupListenersAndMaybeReject(reject)
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const _resolve = (value) => {
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if (typeof cleanupListenersAndMaybeReject === 'function') {
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cleanupListenersAndMaybeReject()
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}
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resolve(value)
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}
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// ToDo: Remove this workaround once
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// https://github.com/whatwg/html/issues/6376 is specified and supported.
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const cleanupListenersAndMaybeReject =
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options[0].legacySetup && options[0].legacySetup(_resolve, _reject, input)
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input.addEventListener('change', () => {
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_resolve(input.multiple ? Array.from(input.files) : input.files[0])
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})
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input.click()
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})
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}
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