barkey/packages/frontend/src/components/MkCropperDialog.vue

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<!--
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SPDX-FileCopyrightText: syuilo and misskey-project
SPDX-License-Identifier: AGPL-3.0-only
-->
<template>
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<MkModalWindow
ref="dialogEl"
:width="800"
:height="500"
:scroll="false"
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:withOkButton="true"
@close="cancel()"
@ok="ok()"
@closed="$emit('closed')"
>
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<template #header>{{ i18n.ts.cropImage }}</template>
<template #default="{ width, height }">
<div class="mk-cropper-dialog" :style="`--vw: ${width}px; --vh: ${height}px;`">
<Transition name="fade">
<div v-if="loading" class="loading">
<MkLoading/>
</div>
</Transition>
<div class="container">
<img ref="imgEl" :src="imgUrl" style="display: none;" @load="onImageLoad">
</div>
</div>
</template>
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</MkModalWindow>
</template>
<script lang="ts" setup>
import { onMounted, shallowRef, ref } from 'vue';
import * as Misskey from 'misskey-js';
import Cropper from 'cropperjs';
import tinycolor from 'tinycolor2';
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import MkModalWindow from '@/components/MkModalWindow.vue';
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import * as os from '@/os.js';
import { $i } from '@/account.js';
import { defaultStore } from '@/store.js';
import { apiUrl } from '@/config.js';
import { i18n } from '@/i18n.js';
import { getProxiedImageUrl } from '@/scripts/media-proxy.js';
const emit = defineEmits<{
(ev: 'ok', cropped: Misskey.entities.DriveFile): void;
(ev: 'cancel'): void;
(ev: 'closed'): void;
}>();
const props = defineProps<{
file: Misskey.entities.DriveFile;
aspectRatio: number;
uploadFolder?: string | null;
}>();
const imgUrl = getProxiedImageUrl(props.file.url, undefined, true);
const dialogEl = shallowRef<InstanceType<typeof MkModalWindow>>();
const imgEl = shallowRef<HTMLImageElement>();
let cropper: Cropper | null = null;
const loading = ref(true);
const ok = async () => {
const promise = new Promise<Misskey.entities.DriveFile>(async (res) => {
const croppedImage = await cropper?.getCropperImage();
const croppedSection = await cropper?.getCropperSelection();
// 拡大率を計算し、(ほぼ)元の大きさに戻す
const zoomedRate = croppedImage.getBoundingClientRect().width / croppedImage.clientWidth;
const widthToRender = croppedSection.getBoundingClientRect().width / zoomedRate;
const croppedCanvas = await croppedSection?.$toCanvas({ width: widthToRender });
croppedCanvas?.toBlob(blob => {
if (!blob) return;
const formData = new FormData();
formData.append('file', blob);
formData.append('name', `cropped_${props.file.name}`);
formData.append('isSensitive', props.file.isSensitive ? 'true' : 'false');
if (props.file.comment) { formData.append('comment', props.file.comment);}
formData.append('i', $i!.token);
if (props.uploadFolder) {
formData.append('folderId', props.uploadFolder);
} else if (props.uploadFolder !== null && defaultStore.state.uploadFolder) {
formData.append('folderId', defaultStore.state.uploadFolder);
}
window.fetch(apiUrl + '/drive/files/create', {
method: 'POST',
body: formData,
})
.then(response => response.json())
.then(f => {
res(f);
});
});
});
os.promiseDialog(promise);
const f = await promise;
emit('ok', f);
dialogEl.value!.close();
};
const cancel = () => {
emit('cancel');
dialogEl.value!.close();
};
const onImageLoad = () => {
loading.value = false;
if (cropper) {
cropper.getCropperImage()!.$center('contain');
cropper.getCropperSelection()!.$center();
}
};
onMounted(() => {
cropper = new Cropper(imgEl.value!, {
});
const computedStyle = getComputedStyle(document.documentElement);
const selection = cropper.getCropperSelection()!;
selection.themeColor = tinycolor(computedStyle.getPropertyValue('--accent')).toHexString();
selection.aspectRatio = props.aspectRatio;
selection.initialAspectRatio = props.aspectRatio;
selection.outlined = true;
window.setTimeout(() => {
cropper!.getCropperImage()!.$center('contain');
selection.$center();
}, 100);
// モーダルオープンアニメーションが終わったあとで再度調整
window.setTimeout(() => {
cropper!.getCropperImage()!.$center('contain');
selection.$center();
}, 500);
});
</script>
<style lang="scss" scoped>
.fade-enter-active,
.fade-leave-active {
transition: opacity 0.5s ease 0.5s;
}
.fade-enter-from,
.fade-leave-to {
opacity: 0;
}
.mk-cropper-dialog {
display: flex;
flex-direction: column;
width: var(--vw);
height: var(--vh);
position: relative;
> .loading {
position: absolute;
z-index: 10;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: flex;
align-items: center;
justify-content: center;
-webkit-backdrop-filter: var(--blur, blur(10px));
backdrop-filter: var(--blur, blur(10px));
background: rgba(0, 0, 0, 0.5);
}
> .container {
flex: 1;
width: 100%;
height: 100%;
> ::v-deep(cropper-canvas) {
width: 100%;
height: 100%;
> cropper-selection > cropper-handle[action="move"] {
background: transparent;
}
}
}
}
</style>