57 lines
1.5 KiB
TypeScript
57 lines
1.5 KiB
TypeScript
import Command from './command'
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import history from '../history'
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import { Data } from 'types'
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import { current } from 'immer'
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import storage from 'state/storage'
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export default function deletePage(data: Data, pageId: string): void {
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const snapshot = getSnapshot(data, pageId)
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history.execute(
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data,
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new Command({
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name: 'delete_page',
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category: 'canvas',
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do(data) {
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data.currentPageId = snapshot.nextPageId
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delete data.document.pages[pageId]
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delete data.pageStates[pageId]
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storage.loadPage(data, snapshot.nextPageId)
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},
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undo(data) {
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data.currentPageId = snapshot.currentPageId
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data.document.pages[pageId] = snapshot.page
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data.pageStates[pageId] = snapshot.pageState
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storage.loadPage(data, snapshot.currentPageId)
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},
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})
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)
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}
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function getSnapshot(data: Data, pageId: string) {
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const cData = current(data)
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const { currentPageId, document } = cData
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const page = document.pages[pageId]
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const pageState = cData.pageStates[pageId]
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const isCurrent = currentPageId === pageId
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// const nextIndex = isCurrent
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// ? page.childIndex === 0
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// ? 1
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// : page.childIndex - 1
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// : document.pages[currentPageId].childIndex
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const nextPageId = isCurrent
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? Object.values(document.pages).filter((page) => page.id !== pageId)[0]?.id // TODO: should be at nextIndex
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: cData.currentPageId
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return {
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nextPageId,
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isCurrent,
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currentPageId,
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page,
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pageState,
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}
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}
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