From cce79ab7d8481a06054166049876c8a2cbb3418f Mon Sep 17 00:00:00 2001
From: Tulir Asokan <tulir@maunium.net>
Date: Tue, 22 May 2018 17:23:54 +0300
Subject: Clean up code

---
 ui/fuzzy-search-modal.go | 136 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 ui/fuzzy-search-modal.go

(limited to 'ui/fuzzy-search-modal.go')

diff --git a/ui/fuzzy-search-modal.go b/ui/fuzzy-search-modal.go
new file mode 100644
index 0000000..4b77ca8
--- /dev/null
+++ b/ui/fuzzy-search-modal.go
@@ -0,0 +1,136 @@
+// gomuks - A terminal Matrix client written in Go.
+// Copyright (C) 2018 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
+
+import (
+	"fmt"
+	"sort"
+	"strconv"
+
+	"github.com/evidlo/fuzzysearch/fuzzy"
+	"maunium.net/go/gomuks/matrix/rooms"
+	"maunium.net/go/gomuks/ui/widget"
+	"maunium.net/go/tview"
+	"maunium.net/go/tcell"
+	"maunium.net/go/gomuks/debug"
+)
+
+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().
+		SetDynamicColors(true).
+		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[""]\n`, match.Index, match.Target)
+		}
+		fs.parent.Render()
+		fs.results.Highlight(strconv.Itoa(fs.matches[0].Index))
+		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].Index))
+			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].Index].GetTitle())
+			fs.mainView.SwitchRoom(fs.roomList[fs.matches[fs.selected].Index].Tags()[0].Tag, fs.roomList[fs.matches[fs.selected].Index])
+		}
+		fs.parent.views.RemovePage("fuzzy-search-modal")
+		fs.parent.app.SetFocus(fs.parent.views)
+		fs.results.Clear()
+		fs.search.SetText("")
+		return nil
+	}
+	return event
+}
-- 
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