overleaf/services/web/frontend/js/ide/outline/OutlineManager.js

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2.9 KiB
JavaScript
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import './controllers/OutlineController'
import './components/OutlinePane'
import './components/OutlineRoot'
import './components/OutlineList'
import './components/OutlineItem'
import { matchOutline, nestOutline } from './OutlineParser'
import isValidTeXFile from '../../main/is-valid-tex-file'
class OutlineManager {
constructor(ide, scope) {
this.ide = ide
this.scope = scope
this.shareJsDoc = null
this.isTexFile = false
this.flatOutline = []
this.outline = []
this.highlightedLine = null
this.ignoreNextScroll = false
this.ignoreNextCursorUpdate = false
scope.$on('doc:after-opened', () => {
this.ignoreNextScroll = true
this.ignoreNextCursorUpdate = true
this.shareJsDoc = scope.editor.sharejs_doc
this.isTexFile = isValidTeXFile(scope.editor.open_doc_name)
this.updateOutline()
this.broadcastChangeEvent()
})
scope.$watch('openFile.name', openFileName => {
this.isTexFile = isValidTeXFile(openFileName)
this.updateOutline()
this.broadcastChangeEvent()
})
scope.$on('doc:changed', () => {
this.updateOutline()
this.broadcastChangeEvent()
})
scope.$on('cursor:editor:update', (event, cursorPosition) => {
if (this.ignoreNextCursorUpdate) {
this.ignoreNextCursorUpdate = false
return
}
this.updateHighlightedLine(cursorPosition.row + 1)
this.broadcastChangeEvent()
})
scope.$on('scroll:editor:update', (event, middleVisibleRow) => {
if (this.ignoreNextScroll) {
this.ignoreNextScroll = false
return
}
this.updateHighlightedLine(middleVisibleRow + 1)
})
scope.$watch('editor.showRichText', () => {
this.ignoreNextScroll = true
this.ignoreNextCursorUpdate = true
})
}
updateOutline() {
this.outline = []
if (this.isTexFile) {
const content = this.ide.editorManager.getCurrentDocValue()
if (content) {
this.flatOutline = matchOutline(content)
this.outline = nestOutline(this.flatOutline)
}
}
}
// set highlightedLine to the closest outline line above the editorLine
updateHighlightedLine(editorLine) {
let closestOutlineLine = null
for (let lineId = 0; lineId < this.flatOutline.length; lineId++) {
const outline = this.flatOutline[lineId]
if (editorLine < outline.line) break // editorLine is above
closestOutlineLine = outline.line
}
if (closestOutlineLine === this.highlightedLine) return
this.highlightedLine = closestOutlineLine
this.broadcastChangeEvent()
}
jumpToLine(line) {
this.ignoreNextScroll = true
this.ide.editorManager.jumpToLine({ gotoLine: line })
}
broadcastChangeEvent() {
this.scope.$broadcast('outline-manager:outline-changed', {
isTexFile: this.isTexFile,
outline: this.outline,
highlightedLine: this.highlightedLine
})
}
}
export default OutlineManager