94 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Vue
		
	
	
			
		
		
	
	
			94 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Vue
		
	
	
| <docs>
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| ---
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| order: 13
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| title:
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|   zh-CN: 自定义渲染对话框
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|   en-US: Custom modal content render
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| ---
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| 
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| ## zh-CN
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| 
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| 自定义渲染对话框, 可通过 `vueuse` 来实现拖拽。
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| 
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| ## en-US
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| 
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| Custom modal content render. use `vueuse` implements draggable.
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| 
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| </docs>
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| <template>
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|   <div>
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|     <a-button type="primary" @click="showModal">Open Modal</a-button>
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|     <a-modal ref="modalRef" v-model:open="open" :wrap-style="{ overflow: 'hidden' }" @ok="handleOk">
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|       <p>Some contents...</p>
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|       <p>Some contents...</p>
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|       <p>Some contents...</p>
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|       <template #title>
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|         <div ref="modalTitleRef" style="width: 100%; cursor: move">Draggable Modal</div>
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|       </template>
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|       <template #modalRender="{ originVNode }">
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|         <div :style="transformStyle">
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|           <component :is="originVNode" />
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|         </div>
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|       </template>
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|     </a-modal>
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|   </div>
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| </template>
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| <script lang="ts" setup>
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| import { ref, computed, CSSProperties, watch, watchEffect } from 'vue';
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| import { useDraggable } from '@vueuse/core';
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| const open = ref<boolean>(false);
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| const modalTitleRef = ref<HTMLElement>(null);
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| const showModal = () => {
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|   open.value = true;
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| };
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| const { x, y, isDragging } = useDraggable(modalTitleRef);
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| const handleOk = (e: MouseEvent) => {
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|   console.log(e);
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|   open.value = false;
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| };
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| const startX = ref<number>(0);
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| const startY = ref<number>(0);
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| const startedDrag = ref(false);
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| const transformX = ref(0);
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| const transformY = ref(0);
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| const preTransformX = ref(0);
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| const preTransformY = ref(0);
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| const dragRect = ref({ left: 0, right: 0, top: 0, bottom: 0 });
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| watch([x, y], () => {
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|   if (!startedDrag.value) {
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|     startX.value = x.value;
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|     startY.value = y.value;
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|     const bodyRect = document.body.getBoundingClientRect();
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|     const titleRect = modalTitleRef.value.getBoundingClientRect();
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|     dragRect.value.right = bodyRect.width - titleRect.width;
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|     dragRect.value.bottom = bodyRect.height - titleRect.height;
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|     preTransformX.value = transformX.value;
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|     preTransformY.value = transformY.value;
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|   }
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|   startedDrag.value = true;
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| });
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| watch(isDragging, () => {
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|   if (!isDragging) {
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|     startedDrag.value = false;
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|   }
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| });
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| 
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| watchEffect(() => {
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|   if (startedDrag.value) {
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|     transformX.value =
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|       preTransformX.value +
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|       Math.min(Math.max(dragRect.value.left, x.value), dragRect.value.right) -
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|       startX.value;
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|     transformY.value =
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|       preTransformY.value +
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|       Math.min(Math.max(dragRect.value.top, y.value), dragRect.value.bottom) -
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|       startY.value;
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|   }
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| });
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| const transformStyle = computed<CSSProperties>(() => {
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|   return {
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|     transform: `translate(${transformX.value}px, ${transformY.value}px)`,
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|   };
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| });
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| </script>
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