105 lines
2.7 KiB
TypeScript
105 lines
2.7 KiB
TypeScript
'use strict'
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import { Neovim } from '@chemzqm/neovim'
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const isVim = process.env.VIM_NODE_RPC == '1'
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/**
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* More methods for float window/popup
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*/
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export default class Popup {
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constructor(
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private nvim: Neovim,
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public readonly winid,
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public readonly bufnr,
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public linecount: number,
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private _currIndex = 0
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) {
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}
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public get currIndex(): number {
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return this._currIndex
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}
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public get valid(): Promise<boolean> {
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return this.nvim.call('coc#float#valid', [this.winid]).then(res => {
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return !!res
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})
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}
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public close(): void {
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this.nvim.call('coc#float#close', [this.winid], true)
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}
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public refreshScrollbar(): void {
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if (!isVim) this.nvim.call('coc#float#nvim_scrollbar', [this.winid], true)
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}
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public execute(cmd: string): void {
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this.nvim.call('coc#compat#execute', [this.winid, cmd], true)
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}
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/**
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* Simple scroll method, not consider wrapped lines.
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*/
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public async scrollForward(): Promise<void> {
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let { nvim, bufnr, winid } = this
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let buf = nvim.createBuffer(bufnr)
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let total = await buf.length
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let botline: number
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if (!isVim) {
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let infos = await nvim.call('getwininfo', [winid])
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if (!infos || !infos.length) return
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botline = infos[0].botline
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} else {
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botline = await nvim.eval(`get(popup_getpos(${winid}), 'lastline', 0)`) as number
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}
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if (botline >= total || botline == 0) return
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nvim.pauseNotification()
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this.setCursor(botline - 1)
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this.execute(`silent! noa setl scrolloff=0`)
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this.execute(`normal! ${botline}Gzt`)
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this.refreshScrollbar()
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nvim.command('redraw', true)
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nvim.resumeNotification(false, true)
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}
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/**
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* Simple scroll method, not consider wrapped lines.
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*/
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public async scrollBackward(): Promise<void> {
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let { nvim, winid } = this
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let topline: number
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if (!isVim) {
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let infos = await nvim.call('getwininfo', [winid])
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if (!infos || !infos.length) return
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topline = infos[0].topline
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} else {
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topline = await nvim.eval(`get(popup_getpos(${winid}), 'firstline', 0)`) as number
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}
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if (topline == 1) return
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nvim.pauseNotification()
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this.setCursor(topline - 1)
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this.execute(`normal! ${topline}Gzb`)
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this.refreshScrollbar()
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nvim.command('redraw', true)
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nvim.resumeNotification(false, true)
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}
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/**
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* Move cursor and highlight.
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*/
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public setCursor(index: number, redraw = false): void {
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let { nvim, bufnr, winid, linecount } = this
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if (index < 0) {
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index = 0
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} else if (index > linecount - 1) {
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index = linecount - 1
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}
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this._currIndex = index
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nvim.call('coc#dialog#set_cursor', [winid, bufnr, index + 1], true)
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if (redraw) {
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this.refreshScrollbar()
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nvim.command('redraw', true)
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}
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}
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}
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