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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| import { useDraw } from '@/composables/useDraw' | ||
| import { randomId } from '@/utils/randomId' | ||
| import type { DrawEvent, ImageHistory, Settings, Shape, Tool } from '../types' | ||
| import { computed, ref, type ComponentPublicInstance, type Ref } from 'vue' | ||
|
|
||
| export interface UseEditorOptions { | ||
| vpImage: Ref<ComponentPublicInstance> | ||
| tools: Tool<any>[] | ||
| history: Ref<ImageHistory<Tool<any>[]>> | ||
| settings: Ref<Settings> | ||
| width: number | ||
| height: number | ||
| emit?: Function | ||
| } | ||
|
|
||
| export function useEditor({ vpImage, tools, history, settings, width, height, emit }: UseEditorOptions) { | ||
|
|
||
| const redoHistory = ref<Shape[]>([]) | ||
| const activeShape = ref<Shape | undefined>() | ||
| const temporaryTool = ref<string>() | ||
|
|
||
| function getActiveTool() { | ||
| return tools?.find((tool) => tool.type === (temporaryTool.value ?? settings.value.tool)) | ||
| } | ||
|
|
||
| const drawEvent = computed<DrawEvent>(() => ({ | ||
| settings: settings.value, | ||
| activeShape: activeShape.value, | ||
| id: activeShape.value?.id ?? randomId(), | ||
| isDrawing: isDrawing.value, | ||
| tools, | ||
| posStart, | ||
| posEnd, | ||
| left: left.value, | ||
| right: right.value, | ||
| top: top.value, | ||
| bottom: bottom.value, | ||
| width, | ||
| height, | ||
| x: x.value, | ||
| y: y.value, | ||
| minX: minX.value, | ||
| maxX: maxX.value, | ||
| minY: minY.value, | ||
| maxY: maxY.value, | ||
| absoluteX: absoluteX.value, | ||
| absoluteY: absoluteY.value | ||
| })) | ||
|
|
||
| const { | ||
| x, | ||
| y, | ||
| minX, | ||
| minY, | ||
| maxX, | ||
| maxY, | ||
| top, | ||
| left, | ||
| bottom, | ||
| right, | ||
| posStart, | ||
| posEnd, | ||
| isDrawing, | ||
| absoluteX, | ||
| absoluteY | ||
| } = useDraw({ | ||
| target: vpImage, | ||
| width, | ||
| height, | ||
| onDrawStart() { | ||
| temporaryTool.value = document.elementsFromPoint(absoluteX.value, absoluteY.value)?.[0] | ||
| ?.getAttribute('class')?.split(' ') | ||
| .find(c => c.startsWith('use-tool-')) | ||
| ?.substring(9) | ||
| activeShape.value = getActiveTool()?.onDrawStart?.(drawEvent.value) ?? activeShape.value | ||
| emit?.('drawStart', drawEvent.value) | ||
| }, | ||
| onDraw() { | ||
| activeShape.value = getActiveTool()?.onDraw?.(drawEvent.value) ?? activeShape.value | ||
| emit?.('draw', drawEvent.value) | ||
| }, | ||
| async onDrawEnd() { | ||
| activeShape.value = getActiveTool()?.onDrawEnd | ||
| ? await getActiveTool()?.onDrawEnd?.(drawEvent.value) | ||
| : activeShape.value | ||
| temporaryTool.value = undefined | ||
| emit?.('drawEnd', drawEvent.value) | ||
| if (activeShape.value) { | ||
| history.value.push(activeShape.value) | ||
| redoHistory.value = [] | ||
| activeShape.value = undefined | ||
| } | ||
| } | ||
| }) | ||
| function undo() { | ||
| if (history.value.length) { | ||
| redoHistory.value.push(...history.value.slice(-1)) | ||
| history.value = history.value.slice(0, -1) | ||
| } | ||
| } | ||
|
|
||
| function redo() { | ||
| if (redoHistory.value.length) { | ||
| history.value.push(...redoHistory.value.slice(-1)) | ||
| redoHistory.value = redoHistory.value.slice(0, -1) | ||
| } | ||
| } | ||
|
|
||
| function save() { | ||
| const svg = vpImage.value.$refs.svg | ||
| if (!svg) { | ||
| throw new Error("Couldn't find the svg") | ||
| } | ||
| emit?.('save', { svg, tools, history: history.value }) | ||
| } | ||
|
|
||
| async function reset() { | ||
| redoHistory.value = history.value.reverse() | ||
| history.value = [] | ||
| const shapes = await Promise.all( | ||
| tools | ||
| .filter((tool) => 'onInitialize' in tool) | ||
| .flatMap(async (tool) => await tool.onInitialize?.({ tools, settings, history })) | ||
| ) | ||
| history.value = [...shapes.filter(Boolean), ...history.value] | ||
| emit?.('reset') | ||
| } | ||
|
|
||
| return { | ||
| settings, | ||
| activeShape, | ||
| undo, | ||
| redo, | ||
| save, | ||
| reset, | ||
| x, | ||
| y, | ||
| minX, | ||
| minY, | ||
| maxX, | ||
| maxY, | ||
| top, | ||
| left, | ||
| bottom, | ||
| right, | ||
| posStart, | ||
| posEnd, | ||
| isDrawing, | ||
| absoluteX, | ||
| absoluteY | ||
| } | ||
| } |
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