85 lines
3.1 KiB
TypeScript
85 lines
3.1 KiB
TypeScript
'use strict'
|
|
import { Neovim } from '@chemzqm/neovim'
|
|
import { Position, Range, SelectionRange } from 'vscode-languageserver-protocol'
|
|
import languages from '../languages'
|
|
import { HandlerDelegate } from '../types'
|
|
import { equals } from '../util/object'
|
|
import { positionInRange } from '../util/position'
|
|
import window from '../window'
|
|
import workspace from '../workspace'
|
|
|
|
export default class SelectionRangeHandler {
|
|
private selectionRange: SelectionRange = null
|
|
constructor(private nvim: Neovim, private handler: HandlerDelegate) {
|
|
}
|
|
|
|
public async getSelectionRanges(): Promise<SelectionRange[] | null> {
|
|
let { doc, position } = await this.handler.getCurrentState()
|
|
this.handler.checkProvier('selectionRange', doc.textDocument)
|
|
await doc.synchronize()
|
|
let selectionRanges: SelectionRange[] = await this.handler.withRequestToken('selection ranges', token => {
|
|
return languages.getSelectionRanges(doc.textDocument, [position], token)
|
|
})
|
|
return selectionRanges
|
|
}
|
|
|
|
public async selectRange(visualmode: string, forward: boolean): Promise<void> {
|
|
let { nvim } = this
|
|
let { doc } = await this.handler.getCurrentState()
|
|
this.handler.checkProvier('selectionRange', doc.textDocument)
|
|
let positions: Position[] = []
|
|
if (!forward && (!this.selectionRange || !visualmode)) return
|
|
if (visualmode) {
|
|
let range = await window.getSelectedRange(visualmode)
|
|
positions.push(range.start, range.end)
|
|
} else {
|
|
let position = await window.getCursorPosition()
|
|
positions.push(position)
|
|
}
|
|
if (!forward) {
|
|
let curr = Range.create(positions[0], positions[1])
|
|
let { selectionRange } = this
|
|
while (selectionRange && selectionRange.parent) {
|
|
if (equals(selectionRange.parent.range, curr)) {
|
|
break
|
|
}
|
|
selectionRange = selectionRange.parent
|
|
}
|
|
if (selectionRange && selectionRange.parent) {
|
|
await window.selectRange(selectionRange.range)
|
|
}
|
|
return
|
|
}
|
|
await doc.synchronize()
|
|
let selectionRanges: SelectionRange[] = await this.handler.withRequestToken('selection ranges', token => {
|
|
return languages.getSelectionRanges(doc.textDocument, positions, token)
|
|
})
|
|
if (!selectionRanges || selectionRanges.length == 0) return
|
|
let mode = await nvim.eval('mode()')
|
|
if (mode != 'n') await nvim.eval(`feedkeys("\\<Esc>", 'in')`)
|
|
let selectionRange: SelectionRange
|
|
if (selectionRanges.length == 1) {
|
|
selectionRange = selectionRanges[0]
|
|
} else {
|
|
let end = positions[1] || positions[0]
|
|
let r = Range.create(positions[0], end)
|
|
selectionRange = selectionRanges[0]
|
|
while (selectionRange) {
|
|
if (equals(r, selectionRange.range)) {
|
|
selectionRange = selectionRange.parent
|
|
continue
|
|
}
|
|
if (
|
|
positionInRange(positions[0], selectionRange.range) == 0 &&
|
|
positionInRange(end, selectionRange.range) == 0) {
|
|
break
|
|
}
|
|
selectionRange = selectionRange.parent
|
|
}
|
|
}
|
|
if (!selectionRange) return
|
|
this.selectionRange = selectionRanges[0]
|
|
await window.selectRange(selectionRange.range)
|
|
}
|
|
}
|