<template>
	<div>
		<el-dialog title="更换头像" v-model="state.isShowDialog" width="769px">
			<div class="cropper-warp">
				<div class="cropper-warp-left">
					<img :src="state.cropperImg" class="cropper-warp-left-img" />
				</div>
				<div class="cropper-warp-right">
					<div class="cropper-warp-right-title">预览</div>
					<div class="cropper-warp-right-item">
						<div class="cropper-warp-right-value">
							<img :src="state.cropperImgBase64" class="cropper-warp-right-value-img" />
						</div>
						<div class="cropper-warp-right-label">100 x 100</div>
					</div>
					<div class="cropper-warp-right-item">
						<div class="cropper-warp-right-value">
							<img :src="state.cropperImgBase64" class="cropper-warp-right-value-img cropper-size" />
						</div>
						<div class="cropper-warp-right-label">50 x 50</div>
					</div>
				</div>
			</div>
			<template #footer>
				<span class="dialog-footer">
					<el-button @click="onCancel" size="default">取 消</el-button>
					<el-button type="primary" @click="onSubmit" size="default">更 换</el-button>
				</span>
			</template>
		</el-dialog>
	</div>
</template>

<script setup lang="ts" name="cropper">
import { reactive, nextTick } from 'vue';
import Cropper from 'cropperjs';
import 'cropperjs/dist/cropper.css';

// 定义变量内容
const state = reactive({
	isShowDialog: false,
	cropperImg: '',
	cropperImgBase64: '',
	cropper: '' as RefType,
});

// 打开弹窗
const openDialog = (imgs: string) => {
	state.cropperImg = imgs;
	state.isShowDialog = true;
	nextTick(() => {
		initCropper();
	});
};
// 关闭弹窗
const closeDialog = () => {
	state.isShowDialog = false;
};
// 取消
const onCancel = () => {
	closeDialog();
};
// 更换
const onSubmit = () => {
	// state.cropperImgBase64 = state.cropper.getCroppedCanvas().toDataURL('image/jpeg');
};
// 初始化cropperjs图片裁剪
const initCropper = () => {
	const letImg = <HTMLImageElement>document.querySelector('.cropper-warp-left-img');
	state.cropper = new Cropper(letImg, {
		viewMode: 1,
		dragMode: 'none',
		initialAspectRatio: 1,
		aspectRatio: 1,
		preview: '.before',
		background: false,
		autoCropArea: 0.6,
		zoomOnWheel: false,
		crop: () => {
			state.cropperImgBase64 = state.cropper.getCroppedCanvas().toDataURL('image/jpeg');
		},
	});
};

// 暴露变量
defineExpose({
	openDialog,
});
</script>

<style scoped lang="scss">
.cropper-warp {
	display: flex;
	.cropper-warp-left {
		position: relative;
		display: inline-block;
		height: 350px;
		flex: 1;
		border: 1px solid var(--el-border-color);
		background: var(--el-color-white);
		overflow: hidden;
		background-repeat: no-repeat;
		cursor: move;
		border-radius: var(--el-border-radius-base);
		.cropper-warp-left-img {
			width: 100%;
			height: 100%;
		}
	}
	.cropper-warp-right {
		width: 150px;
		height: 350px;
		.cropper-warp-right-title {
			text-align: center;
			height: 20px;
			line-height: 20px;
		}
		.cropper-warp-right-item {
			margin: 15px 0;
			.cropper-warp-right-value {
				display: flex;
				.cropper-warp-right-value-img {
					width: 100px;
					height: 100px;
					border-radius: var(--el-border-radius-circle);
					margin: auto;
				}
				.cropper-size {
					width: 50px;
					height: 50px;
				}
			}
			.cropper-warp-right-label {
				text-align: center;
				font-size: 12px;
				color: var(--el-text-color-primary);
				height: 30px;
				line-height: 30px;
			}
		}
	}
}
</style>