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57 lines
1.2 KiB
57 lines
1.2 KiB
export function toArray(item) {
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if (Array.isArray(item)) {
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return item;
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}
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return [item];
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}
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export function readFile(file, resultType) {
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return new Promise(function (resolve) {
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if (resultType === 'file') {
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resolve();
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return;
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}
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var reader = new FileReader();
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reader.onload = function (event) {
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resolve(event.target.result);
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};
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if (resultType === 'dataUrl') {
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reader.readAsDataURL(file);
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} else if (resultType === 'text') {
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reader.readAsText(file);
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}
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});
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}
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export function isOversize(files, maxSize) {
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return toArray(files).some(function (file) {
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return file.size > maxSize;
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});
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}
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var IMAGE_REGEXP = /\.(jpeg|jpg|gif|png|svg|webp|jfif|bmp|dpg)/i;
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export function isImageUrl(url) {
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return IMAGE_REGEXP.test(url);
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}
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export function isImageFile(item) {
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// some special urls cannot be recognized
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// user can add `isImage` flag to mark it as an image url
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if (item.isImage) {
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return true;
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}
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if (item.file && item.file.type) {
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return item.file.type.indexOf('image') === 0;
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}
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if (item.url) {
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return isImageUrl(item.url);
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}
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if (item.content) {
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return item.content.indexOf('data:image') === 0;
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}
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return false;
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} |