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fix(Uploader): preview is slow when sum of images size be bigger(#7307) (#9953)

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* fix(Uploader): preview is slow when sum of images size be bigger(#7307)

* Update index.js

Co-authored-by: neverland <chenjiahan@buaa.edu.cn>
This commit is contained in:
chenjiangui 2021-11-29 20:50:33 +08:00 committed by GitHub
parent b59f58e951
commit 3e71c4a224
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1 changed files with 15 additions and 1 deletions
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16
src/uploader/index.js
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@ -93,6 +93,14 @@ export default createComponent({
}, },
}, },
created() {
this.urls = [];
},
beforeDestroy() {
this.urls.forEach((url) => URL.revokeObjectURL(url));
},
methods: { methods: {
getDetail(index = this.fileList.length) { getDetail(index = this.fileList.length) {
return { return {
@ -259,7 +267,13 @@ export default createComponent({
} }
const imageFiles = this.fileList.filter((item) => isImageFile(item)); const imageFiles = this.fileList.filter((item) => isImageFile(item));
const imageContents = imageFiles.map((item) => item.content || item.url); const imageContents = imageFiles.map((item) => {
if (item.file && !item.url) {
item.url = URL.createObjectURL(item.file);
this.urls.push(item.url);
}
return item.url;
});
this.imagePreview = ImagePreview({ this.imagePreview = ImagePreview({
images: imageContents, images: imageContents,