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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| <script setup> | ||
| import Example from './draggable-items.vue' | ||
| </script> | ||
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| # Draggable Items | ||
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| <Example/> | ||
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| ## Code | ||
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| <<< ./draggable-items.vue{vue} |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| <script setup lang="ts"> | ||
| import { ref } from 'vue'; | ||
| const items = ref([ | ||
| { id: 1, group: 1, type: 'range', cssVariables: { '--item-background': 'var(--color-2)' }, start: 1000000, end: 4500000 }, | ||
| { id: 2, group: 2, type: 'range', cssVariables: { '--item-background': 'var(--color-4)' }, start: 4500000, end: 6000000 }, | ||
| { id: 3, group: 3, type: 'range', start: 6000000, end: 8000000 }, | ||
| ]); | ||
| let previousDragTimePos = 0; | ||
| let currentDragAction: 'resize-start' | 'resize-both' | 'resize-end' | undefined; | ||
| let currentDragItemId = null; | ||
| function handleItemDrag ({ time, event, item }) { | ||
| if (event.type === 'pointerdown') { | ||
| if (!event.target.dataset.action) { | ||
| return; | ||
| } | ||
| currentDragAction = event.target.dataset.action as typeof currentDragAction; | ||
| currentDragItemId = item.id; | ||
| previousDragTimePos = time; | ||
| } | ||
| else if (event.type === 'pointermove') { | ||
| if (!currentDragAction) { | ||
| return; | ||
| } | ||
| const foundItem = items.value.find(i => i.id === currentDragItemId)!; | ||
| const delta = time - previousDragTimePos; | ||
| if (currentDragAction === 'resize-start' || currentDragAction === 'resize-both') { | ||
| foundItem.start += delta; | ||
| } | ||
| if (currentDragAction === 'resize-end' || currentDragAction === 'resize-both') { | ||
| foundItem.end += delta; | ||
| } | ||
| previousDragTimePos = time; | ||
| } | ||
| } | ||
| window.addEventListener('pointerup', () => { | ||
| currentDragAction = undefined; | ||
| }, { capture: true }); | ||
| </script> | ||
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| <template> | ||
| <Timeline | ||
| :items="items" | ||
| :groups="[{id: 1}, {id: 2}, {id: 3}]" | ||
| :viewportMin="0" | ||
| :viewportMax="8000000" | ||
| :initialViewportStart="0" | ||
| :initialViewportEnd="8000000" | ||
| @changeViewport="viewport = $event" | ||
| @pointermove="handleItemDrag" | ||
| @pointerdown="handleItemDrag" | ||
| > | ||
| <template #item> | ||
| <div class="draggable" data-action="resize-both"> | ||
| <div class="draggable-handle" data-action="resize-start"></div> | ||
| <div class="draggable-handle" data-action="resize-end"></div> | ||
| </div> | ||
| </template> | ||
| </Timeline> | ||
| </template> | ||
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| <style lang="scss" scoped> | ||
| .draggable { | ||
| position: absolute; | ||
| inset: 0; | ||
| display: flex; | ||
| justify-content: space-between; | ||
| cursor: move; | ||
| .draggable-handle { | ||
| position: relative; | ||
| width: 1.2rem; | ||
| height: 100%; | ||
| cursor: ew-resize; | ||
| opacity: .6; | ||
| &::before { | ||
| content: ''; | ||
| border-inline: 1px solid white; | ||
| width: 4px; | ||
| height: 40%; | ||
| left: 50%; | ||
| top: 50%; | ||
| transform: translate(-50%, -50%); | ||
| position: absolute; | ||
| } | ||
| &:hover { | ||
| opacity: 1; | ||
| } | ||
| } | ||
| } | ||
| </style> |
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