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feat: support resizable to designerProps
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| import { Engine, CursorType } from '../models' | ||
| import { DragStartEvent, DragMoveEvent, DragStopEvent } from '../events' | ||
| import { TreeNode } from '../models' | ||
| import { Point } from '@designable/shared' | ||
|
|
||
| type ResizeData = { | ||
| element?: Element | ||
| node?: TreeNode | ||
| axis?: 'x' | 'y' | (string & {}) | ||
| type?: 'x-start' | 'x-end' | 'y-start' | 'y-end' | (string & {}) | ||
| start?: Point | ||
| point?: Point | ||
| xIndex?: number | ||
| yIndex?: number | ||
| } | ||
|
|
||
| type ResizeStore = { | ||
| value?: ResizeData | ||
| } | ||
|
|
||
| export const useResizeEffect = (engine: Engine) => { | ||
| const findStartNodeHandler = (target: HTMLElement): ResizeData => { | ||
| const handler = target?.closest( | ||
| `*[${engine.props.nodeResizeHandlerAttrName}]` | ||
| ) | ||
| if (handler) { | ||
| const type = handler.getAttribute(engine.props.nodeResizeHandlerAttrName) | ||
| if (type) { | ||
| const element = handler.closest( | ||
| `*[${engine.props.nodeSelectionIdAttrName}]` | ||
| ) | ||
| if (element) { | ||
| const nodeId = element.getAttribute( | ||
| engine.props.nodeSelectionIdAttrName | ||
| ) | ||
| if (nodeId) { | ||
| const node = engine.findNodeById(nodeId) | ||
| if (node) { | ||
| const axis = type.includes('x') ? 'x' : 'y' | ||
| return { axis, type, node, element, xIndex: 0, yIndex: 0 } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return | ||
| } | ||
|
|
||
| const store: ResizeStore = {} | ||
|
|
||
| engine.subscribeTo(DragStartEvent, (event) => { | ||
| if (engine.cursor.type !== CursorType.Move) return | ||
| const target = event.data.target as HTMLElement | ||
| const data = findStartNodeHandler(target) | ||
| if (data) { | ||
| const start = new Point(event.data.clientX, event.data.clientY) | ||
| store.value = { | ||
| ...data, | ||
| start, | ||
| point: start, | ||
| } | ||
| if (data.axis === 'x') { | ||
| engine.cursor.setStyle('ew-resize') | ||
| } else if (data.axis === 'y') { | ||
| engine.cursor.setStyle('ns-resize') | ||
| } | ||
| } | ||
| }) | ||
|
|
||
| engine.subscribeTo(DragMoveEvent, (event) => { | ||
| if (engine.cursor.type !== CursorType.Move) return | ||
| if (store.value) { | ||
| const { axis, type, node, element, point, start } = store.value | ||
| const allowResize = node.allowResize() | ||
| if (!allowResize) return | ||
| const resizable = node.designerProps.resizable | ||
| const step = resizable.step ?? 1 | ||
| const current = new Point(event.data.clientX, event.data.clientY) | ||
| const xIndex = Math.floor((current.x - start.x) / step) | ||
| const yIndex = Math.floor((current.x - start.x) / step) | ||
| const plusX = type === 'x-end' ? current.x > point.x : current.x < point.x | ||
| const plusY = type === 'y-end' ? current.y > point.y : current.y < point.y | ||
| const allowX = allowResize.includes('x') | ||
| const allowY = allowResize.includes('y') | ||
| const width = resizable.width?.(node, element) | ||
| const height = resizable.height?.(node, element) | ||
| if (axis === 'x') { | ||
| if (xIndex === store.value.xIndex) return | ||
| if (allowX) { | ||
| if (plusX) { | ||
| width.plus() | ||
| } else { | ||
| width.minus() | ||
| } | ||
| } | ||
| } else if (axis === 'y') { | ||
| if (yIndex === store.value.yIndex) return | ||
| if (allowY) { | ||
| if (plusY) { | ||
| height.plus() | ||
| } else { | ||
| height.minus() | ||
| } | ||
| } | ||
| } | ||
| store.value.point = current | ||
| store.value.xIndex = xIndex | ||
| store.value.yIndex = yIndex | ||
| } | ||
| }) | ||
|
|
||
| engine.subscribeTo(DragStopEvent, () => { | ||
| if (engine.cursor.type !== CursorType.Move) return | ||
| if (store.value) { | ||
| store.value = null | ||
| engine.cursor.setStyle('') | ||
| } | ||
| }) | ||
| } |
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