344 lines
13 KiB
TypeScript
344 lines
13 KiB
TypeScript
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'use strict'
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import { Neovim } from '@chemzqm/neovim'
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import { CodeActionKind, Disposable, DocumentSymbol, Position, Range, SymbolKind, SymbolTag } from 'vscode-languageserver-protocol'
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import events from '../../events'
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import languages from '../../languages'
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import BufferSync from '../../model/bufferSync'
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import BasicDataProvider, { TreeNode } from '../../tree/BasicDataProvider'
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import BasicTreeView from '../../tree/TreeView'
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import { ConfigurationChangeEvent, HandlerDelegate } from '../../types'
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import { disposeAll } from '../../util'
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import { comparePosition, positionInRange } from '../../util/position'
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import window from '../../window'
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import workspace from '../../workspace'
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import SymbolsBuffer from './buffer'
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const logger = require('../../util/logger')('symbols-outline')
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// Support expand level.
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interface OutlineNode extends TreeNode {
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kind: SymbolKind
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range: Range
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selectRange: Range
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}
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interface OutlineConfig {
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splitCommand: string
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switchSortKey: string
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followCursor: boolean
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keepWindow: boolean
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expandLevel: number
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checkBufferSwitch: boolean
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showLineNumber: boolean
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autoWidth: boolean
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detailAsDescription: boolean
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codeActionKinds: CodeActionKind[]
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sortBy: 'position' | 'name' | 'category'
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}
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/**
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* Manage TreeViews and Providers of outline.
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*/
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export default class SymbolsOutline {
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private treeViewList: BasicTreeView<OutlineNode>[] = []
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private providersMap: Map<number, BasicDataProvider<OutlineNode>> = new Map()
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private sortByMap: Map<number, string> = new Map()
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private config: OutlineConfig
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private disposables: Disposable[] = []
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constructor(
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private nvim: Neovim,
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private buffers: BufferSync<SymbolsBuffer>,
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private handler: HandlerDelegate
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) {
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this.loadConfiguration()
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workspace.onDidChangeConfiguration(this.loadConfiguration, this, this.disposables)
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workspace.onDidCloseTextDocument(async e => {
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let { bufnr } = e
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let provider = this.providersMap.get(bufnr)
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if (!provider) return
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let loaded = await nvim.call('bufloaded', [bufnr]) as number
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// reload detected
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if (loaded) return
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this.providersMap.delete(bufnr)
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provider.dispose()
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}, null, this.disposables)
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window.onDidChangeActiveTextEditor(async editor => {
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if (!this.config.checkBufferSwitch) return
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let view = this.treeViewList.find(v => v.visible && v.targetTabnr == editor.tabpagenr)
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if (view) {
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await this.showOutline(editor.document.bufnr, editor.tabpagenr)
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await nvim.command(`noa call win_gotoid(${editor.winid})`)
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}
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}, null, this.disposables)
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events.on('CursorHold', async bufnr => {
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if (!this.config.followCursor) return
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let provider = this.providersMap.get(bufnr)
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if (!provider) return
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let tabnr = await nvim.call('tabpagenr')
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let view = this.treeViewList.find(o => o.visible && o.targetBufnr == bufnr && o.targetTabnr == tabnr)
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if (!view) return
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let pos = await window.getCursorPosition()
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await this.revealPosition(view, pos)
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}, null, this.disposables)
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}
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private async revealPosition(treeView: BasicTreeView<OutlineNode>, position: Position): Promise<void> {
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let curr: OutlineNode
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let checkNode = (node: OutlineNode): boolean => {
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if (positionInRange(position, node.range) != 0) return false
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curr = node
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if (Array.isArray(node.children)) {
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for (let n of node.children) {
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if (n.kind === SymbolKind.Variable) continue
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if (checkNode(n)) break
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}
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}
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return true
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}
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let provider = this.providersMap.get(treeView.targetBufnr)
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if (!provider) return
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let nodes = await Promise.resolve(provider.getChildren())
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for (let n of nodes) {
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if (checkNode(n)) break
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}
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if (curr) await treeView.reveal(curr)
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}
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private loadConfiguration(e?: ConfigurationChangeEvent): void {
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if (!e || e.affectsConfiguration('outline')) {
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let c = workspace.getConfiguration('outline')
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this.config = {
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splitCommand: c.get<string>('splitCommand'),
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switchSortKey: c.get<string>('switchSortKey'),
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followCursor: c.get<boolean>('followCursor'),
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keepWindow: c.get<boolean>('keepWindow'),
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expandLevel: c.get<number>('expandLevel'),
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autoWidth: c.get<boolean>('autoWidth'),
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checkBufferSwitch: c.get<boolean>('checkBufferSwitch'),
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detailAsDescription: c.get<boolean>('detailAsDescription'),
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sortBy: c.get<'position' | 'name' | 'category'>('sortBy'),
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showLineNumber: c.get<boolean>('showLineNumber'),
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codeActionKinds: c.get<string[]>('codeActionKinds')
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}
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}
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}
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private convertSymbolToNode(documentSymbol: DocumentSymbol, sortFn: (a: OutlineNode, b: OutlineNode) => number): OutlineNode {
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let descs = []
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let { detailAsDescription, showLineNumber } = this.config
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if (detailAsDescription && documentSymbol.detail) descs.push(documentSymbol.detail)
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if (showLineNumber) descs.push(`${documentSymbol.selectionRange.start.line + 1}`)
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return {
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label: documentSymbol.name,
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tooltip: detailAsDescription ? undefined : documentSymbol.detail,
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description: descs.join(' '),
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icon: this.handler.getIcon(documentSymbol.kind),
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deprecated: documentSymbol.tags?.includes(SymbolTag.Deprecated),
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kind: documentSymbol.kind,
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range: documentSymbol.range,
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selectRange: documentSymbol.selectionRange,
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children: Array.isArray(documentSymbol.children) ? documentSymbol.children.map(o => {
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return this.convertSymbolToNode(o, sortFn)
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}).sort(sortFn) : undefined
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}
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}
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private setMessage(bufnr: number, msg: string | undefined): void {
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let views = this.treeViewList.filter(v => v.valid && v.targetBufnr == bufnr)
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if (views) {
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views.forEach(view => {
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view.message = msg
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})
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}
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}
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private convertSymbols(bufnr: number, symbols: DocumentSymbol[]): OutlineNode[] {
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let sortBy = this.getSortBy(bufnr)
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let sortFn = (a: OutlineNode, b: OutlineNode): number => {
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if (sortBy === 'name') {
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return a.label < b.label ? -1 : 1
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}
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if (sortBy === 'category') {
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if (a.kind == b.kind) return a.label < b.label ? -1 : 1
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return a.kind - b.kind
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}
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return comparePosition(a.selectRange.start, b.selectRange.start)
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}
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return symbols.map(s => this.convertSymbolToNode(s, sortFn)).sort(sortFn)
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}
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public onSymbolsUpdate(bufnr: number, symbols: DocumentSymbol[]): void {
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let provider = this.providersMap.get(bufnr)
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if (provider) provider.update(this.convertSymbols(bufnr, symbols))
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}
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private createProvider(bufnr: number): BasicDataProvider<OutlineNode> {
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let { nvim } = this
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let disposable: Disposable
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let provider = new BasicDataProvider({
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expandLevel: this.config.expandLevel,
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provideData: async () => {
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let buf = this.buffers.getItem(bufnr)
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if (!buf) throw new Error('Document not attached')
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let doc = workspace.getDocument(bufnr)
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if (!languages.hasProvider('documentSymbol', doc.textDocument)) {
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throw new Error('Document symbol provider not found')
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}
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let meta = languages.getDocumentSymbolMetadata(doc.textDocument)
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if (meta && meta.label) {
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let views = this.treeViewList.filter(v => v.valid && v.targetBufnr == bufnr)
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views.forEach(view => view.description = meta.label)
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}
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this.setMessage(bufnr, 'Loading document symbols')
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let arr = await buf.getSymbols()
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if (!arr || arr.length == 0) {
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// server may return empty symbols on buffer initialize, throw error to force reload.
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throw new Error('Empty symbols returned from language server. ')
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}
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this.setMessage(bufnr, undefined)
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return this.convertSymbols(bufnr, arr)
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},
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handleClick: async item => {
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let winnr = await nvim.call('bufwinnr', [bufnr])
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if (winnr == -1) return
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nvim.pauseNotification()
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nvim.command(`${winnr}wincmd w`, true)
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let pos = item.selectRange.start
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nvim.call('coc#cursor#move_to', [pos.line, pos.character], true)
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nvim.command(`normal! zz`, true)
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let buf = nvim.createBuffer(bufnr)
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buf.highlightRanges('outline-hover', 'CocHoverRange', [item.selectRange])
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nvim.command('redraw', true)
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await nvim.resumeNotification()
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setTimeout(() => {
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buf.clearNamespace('outline-hover')
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nvim.command('redraw', true)
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}, global.hasOwnProperty('__TEST__') ? 10 : 300)
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},
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resolveActions: async (_, element) => {
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let winnr = await nvim.call('bufwinnr', [bufnr])
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if (winnr == -1) return
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let doc = workspace.getDocument(bufnr)
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let actions = await this.handler.getCodeActions(doc, element.range, this.config.codeActionKinds)
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let arr = actions.map(o => {
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return {
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title: o.title,
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handler: async () => {
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let position = element.range.start
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await nvim.command(`${winnr}wincmd w`)
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await this.nvim.call('coc#cursor#move_to', [position.line, position.character])
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await this.handler.applyCodeAction(o)
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}
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}
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})
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return [...arr, {
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title: 'Visual Select',
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handler: async item => {
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await nvim.command(`${winnr}wincmd w`)
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await window.selectRange(item.range)
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}
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}]
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},
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onDispose: () => {
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if (disposable) disposable.dispose()
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for (let view of this.treeViewList) {
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if (view.provider === provider) view.dispose()
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}
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}
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})
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return provider
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}
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private getSortBy(bufnr: number): string {
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return this.sortByMap.get(bufnr) ?? this.config.sortBy
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}
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private async showOutline(bufnr: number, tabnr: number): Promise<BasicTreeView<OutlineNode>> {
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if (!this.providersMap.has(bufnr)) {
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this.providersMap.set(bufnr, this.createProvider(bufnr))
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}
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let treeView = this.treeViewList.find(v => v.valid && v.targetBufnr == bufnr && v.targetTabnr == tabnr)
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if (!treeView) {
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treeView = new BasicTreeView('OUTLINE', {
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autoWidth: this.config.autoWidth,
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bufhidden: 'hide',
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enableFilter: true,
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treeDataProvider: this.providersMap.get(bufnr),
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})
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let sortBy = this.getSortBy(bufnr)
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treeView.description = `${sortBy[0].toUpperCase()}${sortBy.slice(1)}`
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this.treeViewList.push(treeView)
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treeView.onDispose(() => {
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let idx = this.treeViewList.findIndex(v => v === treeView)
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if (idx !== -1) this.treeViewList.splice(idx, 1)
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})
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}
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let shown = await treeView.show(this.config.splitCommand)
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if (shown) {
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treeView.registerLocalKeymap('n', this.config.switchSortKey, async () => {
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let arr = ['category', 'name', 'position']
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let curr = this.getSortBy(bufnr)
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let items = arr.map(s => {
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return { text: s, disabled: s === curr }
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})
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let res = await window.showMenuPicker(items, { title: 'Choose sort method' })
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if (res < 0) return
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let sortBy = arr[res]
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this.sortByMap.set(bufnr, sortBy)
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let views = this.treeViewList.filter(o => o.targetBufnr == bufnr)
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views.forEach(view => {
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view.description = `${sortBy[0].toUpperCase()}${sortBy.slice(1)}`
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})
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let item = this.buffers.getItem(bufnr)
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if (item && item.symbols) this.onSymbolsUpdate(bufnr, item.symbols)
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})
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}
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return treeView
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}
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/**
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* Create outline view.
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*/
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public async show(keep?: number): Promise<void> {
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let [filetype, bufnr, tabnr, winid] = await this.nvim.eval('[&filetype,bufnr("%"),tabpagenr(),win_getid()]') as [string, number, number, number]
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if (filetype === 'coctree') return
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let position = await window.getCursorPosition()
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let treeView = await this.showOutline(bufnr, tabnr)
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if (keep == 1 || (keep === undefined && this.config.keepWindow)) {
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await this.nvim.command(`noa call win_gotoid(${winid})`)
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} else if (this.config.followCursor) {
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let disposable = treeView.onDidRefrash(async () => {
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disposable.dispose()
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let filetype = await this.nvim.eval('&filetype')
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if (filetype == 'coctree' && treeView.visible) {
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await this.revealPosition(treeView, position)
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}
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})
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}
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}
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public has(bufnr: number): boolean {
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return this.providersMap.has(bufnr)
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}
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/**
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* Hide outline of current tab.
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*/
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public async hide(): Promise<void> {
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let winid = await this.nvim.call('coc#window#find', ['cocViewId', 'OUTLINE']) as number
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if (winid == -1) return
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await this.nvim.call('coc#window#close', [winid])
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}
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public dispose(): void {
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for (let view of this.treeViewList) {
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view.dispose()
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}
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this.treeViewList = []
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for (let provider of this.providersMap.values()) {
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provider.dispose()
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}
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this.providersMap.clear()
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disposeAll(this.disposables)
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}
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}
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