gomuks/ui/fuzzy-search-modal.go
2019-01-23 00:26:51 +02:00

138 lines
3.8 KiB
Go

// gomuks - A terminal Matrix client written in Go.
// Copyright (C) 2019 Tulir Asokan
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package ui
import (
"fmt"
"sort"
"strconv"
"github.com/lithammer/fuzzysearch/fuzzy"
"maunium.net/go/tcell"
"maunium.net/go/tview"
"maunium.net/go/gomuks/debug"
"maunium.net/go/gomuks/matrix/rooms"
"maunium.net/go/gomuks/ui/widget"
)
type FuzzySearchModal struct {
tview.Primitive
search *tview.InputField
results *tview.TextView
matches fuzzy.Ranks
selected int
roomList []*rooms.Room
roomTitles []string
parent *GomuksUI
mainView *MainView
}
func NewFuzzySearchModal(mainView *MainView, width int, height int) *FuzzySearchModal {
fs := &FuzzySearchModal{
parent: mainView.parent,
mainView: mainView,
}
fs.InitList(mainView.rooms)
fs.search = tview.NewInputField().
SetLabel("Room: ")
fs.search.
SetChangedFunc(fs.changeHandler).
SetInputCapture(fs.keyHandler)
fs.results = tview.NewTextView().
SetRegions(true)
fs.results.SetBorderPadding(1, 0, 0, 0)
// Flex widget containing input box and results
container := tview.NewFlex().
SetDirection(tview.FlexRow).
AddItem(fs.search, 1, 0, true).
AddItem(fs.results, 0, 1, false)
container.
SetBorder(true).
SetBorderPadding(1, 1, 1, 1).
SetTitle("Quick Room Switcher")
fs.Primitive = widget.TransparentCenter(width, height, container)
return fs
}
func (fs *FuzzySearchModal) InitList(rooms map[string]*RoomView) {
for _, room := range rooms {
fs.roomList = append(fs.roomList, room.Room)
fs.roomTitles = append(fs.roomTitles, room.Room.GetTitle())
}
}
func (fs *FuzzySearchModal) changeHandler(str string) {
// Get matches and display in result box
fs.matches = fuzzy.RankFindFold(str, fs.roomTitles)
if len(str) > 0 && len(fs.matches) > 0 {
sort.Sort(fs.matches)
fs.results.Clear()
for _, match := range fs.matches {
fmt.Fprintf(fs.results, `["%d"]%s[""]%s`, match.OriginalIndex, match.Target, "\n")
}
fs.parent.Render()
fs.results.Highlight(strconv.Itoa(fs.matches[0].OriginalIndex))
fs.results.ScrollToBeginning()
} else {
fs.results.Clear()
fs.results.Highlight()
}
}
func (fs *FuzzySearchModal) keyHandler(event *tcell.EventKey) *tcell.EventKey {
highlights := fs.results.GetHighlights()
switch event.Key() {
case tcell.KeyEsc:
// Close room finder
fs.parent.views.RemovePage("fuzzy-search-modal")
fs.parent.app.SetFocus(fs.parent.views)
return nil
case tcell.KeyTab:
// Cycle highlighted area to next match
if len(highlights) > 0 {
fs.selected = (fs.selected + 1) % len(fs.matches)
fs.results.Highlight(strconv.Itoa(fs.matches[fs.selected].OriginalIndex))
fs.results.ScrollToHighlight()
}
return nil
case tcell.KeyEnter:
// Switch room to currently selected room
if len(highlights) > 0 {
debug.Print("Fuzzy Selected Room:", fs.roomList[fs.matches[fs.selected].OriginalIndex].GetTitle())
fs.mainView.SwitchRoom(fs.roomList[fs.matches[fs.selected].OriginalIndex].Tags()[0].Tag, fs.roomList[fs.matches[fs.selected].OriginalIndex])
}
fs.parent.views.RemovePage("fuzzy-search-modal")
fs.parent.app.SetFocus(fs.parent.views)
fs.results.Clear()
fs.search.SetText("")
return nil
}
return event
}