From 98d8dc62f9459db0b770e5b675fa28714d80f153 Mon Sep 17 00:00:00 2001
From: Bradley Cicenas <bradley@vektor.nyc>
Date: Tue, 7 Mar 2017 01:47:07 +0000
Subject: [PATCH] add stream to input widget, realtime filtering updates

---
 grid.go          |  1 -
 menus.go         | 14 ++++++++++++++
 widgets/input.go |  8 ++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/grid.go b/grid.go
index a4a426f..c53cff4 100644
--- a/grid.go
+++ b/grid.go
@@ -141,7 +141,6 @@ func Display() bool {
 
 	ui.Loop()
 	if menu != nil {
-		ui.Clear()
 		menu()
 		return false
 	}
diff --git a/menus.go b/menus.go
index 3d06865..13b03fe 100644
--- a/menus.go
+++ b/menus.go
@@ -18,6 +18,7 @@ var helpDialog = []menu.Item{
 }
 
 func HelpMenu() {
+	ui.Clear()
 	ui.DefaultEvtStream.ResetHandlers()
 	defer ui.DefaultEvtStream.ResetHandlers()
 
@@ -43,6 +44,18 @@ func FilterMenu() {
 	i.BorderFg = ui.ColorCyan
 	i.SetY(ui.TermHeight() - i.Height)
 	ui.Render(i)
+
+	// refresh container rows on input
+	stream := i.Stream()
+	go func() {
+		for s := range stream {
+			config.Update("filterStr", s)
+			cursor.RefreshContainers()
+			RedrawRows()
+			ui.Render(i)
+		}
+	}()
+
 	i.InputHandlers()
 	ui.Handle("/sys/kbd/<enter>", func(ui.Event) {
 		config.Update("filterStr", i.Data)
@@ -52,6 +65,7 @@ func FilterMenu() {
 }
 
 func SortMenu() {
+	ui.Clear()
 	ui.DefaultEvtStream.ResetHandlers()
 	defer ui.DefaultEvtStream.ResetHandlers()
 
diff --git a/widgets/input.go b/widgets/input.go
index 4061d28..2a8f76b 100644
--- a/widgets/input.go
+++ b/widgets/input.go
@@ -19,6 +19,7 @@ type Input struct {
 	MaxLen      int
 	TextFgColor ui.Attribute
 	TextBgColor ui.Attribute
+	stream      chan string // stream text as it changes
 	padding     Padding
 }
 
@@ -55,12 +56,18 @@ func (i *Input) Buffer() ui.Buffer {
 	return buf
 }
 
+func (i *Input) Stream() chan string {
+	i.stream = make(chan string)
+	return i.stream
+}
+
 func (i *Input) KeyPress(e ui.Event) {
 	ch := strings.Replace(e.Path, "/sys/kbd/", "", -1)
 	if ch == "C-8" {
 		idx := len(i.Data) - 1
 		if idx > -1 {
 			i.Data = i.Data[0:idx]
+			i.stream <- i.Data
 		}
 		ui.Render(i)
 		return
@@ -70,6 +77,7 @@ func (i *Input) KeyPress(e ui.Event) {
 	}
 	if strings.Index(input_chars, ch) > -1 {
 		i.Data += ch
+		i.stream <- i.Data
 		ui.Render(i)
 	}
 }