autocomplete.go

// mauIRC - The original mauIRC web frontend
// Copyright (C) 2016 Tulir Asokan

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

// Package ui contains UI-related functions
package ui

import (
	"fmt"
	"maunium.net/go/mauirc/data"
	"strings"
)

var commands = []string{"/me", "/topic", "/nick", "/msg", "/query", "/join", "/part", "/exit"}

// Autocomplete things
func Autocomplete() {
	msgbox := jq("#message-text")
	text := msgbox.Val()
	caretPos := msgbox.Underlying().Index(0).Get("selectionStart").Int()

	spIndex := strings.LastIndex(text[:caretPos], " ")
	if spIndex == caretPos-1 {
		return
	}

	word := text[spIndex+1 : caretPos]

	var acList []string
	fmtStart := "%s %s"
	fmtMid := "%s %s%s"
	if word[0] == '/' {
		acList = commands
	} else {
		fmtStart = "%s: %s"
		acList = data.MustGetChannel(GetActiveNetwork(), GetActiveChannel()).UserlistPlain
	}

	for _, ac := range acList {
		if strings.HasPrefix(strings.ToLower(ac), word) {
			if spIndex == -1 {
				msgbox.SetVal(fmt.Sprintf(fmtStart, ac, text[caretPos:]))
			} else {
				msgbox.SetVal(fmt.Sprintf(fmtMid, text[:spIndex], ac, text[caretPos:]))
			}
			return
		}
	}
}