From 55e84533022c1f9bf9fd9e2cd2db930394b590b8 Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Wed, 10 Jan 2018 22:54:55 -0500
Subject: Improve invalidation logic

---
 ui/account.go | 13 +++++----
 ui/render.go  | 80 -----------------------------------------------------
 ui/types.go   | 11 +++++---
 ui/ui.go      | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 103 insertions(+), 89 deletions(-)
 delete mode 100644 ui/render.go
 create mode 100644 ui/ui.go

diff --git a/ui/account.go b/ui/account.go
index 0949e52..9c16cc5 100644
--- a/ui/account.go
+++ b/ui/account.go
@@ -11,6 +11,8 @@ type AccountTab struct {
 	Config *config.AccountConfig
 	Worker *worker.Worker
 	Parent *UIState
+
+	counter int
 }
 
 func NewAccountTab(conf *config.AccountConfig, work *worker.Worker) *AccountTab {
@@ -24,10 +26,6 @@ func (acc *AccountTab) Name() string {
 	return acc.Config.Name
 }
 
-func (acc *AccountTab) Invalid() bool {
-	return false
-}
-
 func (acc *AccountTab) SetParent(parent *UIState) {
 	acc.Parent = parent
 }
@@ -37,5 +35,10 @@ func (acc *AccountTab) Render(at Geometry) {
 		Fg: tb.ColorDefault,
 		Bg: tb.ColorDefault,
 	}
-	TPrintf(&at, cell, "%s", acc.Name())
+	TPrintf(&at, cell, "%s %d", acc.Name(), acc.counter)
+	acc.counter++
+	if acc.counter%10000 == 0 {
+		acc.counter = 0
+	}
+	acc.Parent.InvalidateFrom(acc)
 }
diff --git a/ui/render.go b/ui/render.go
deleted file mode 100644
index 4fedc2c..0000000
--- a/ui/render.go
+++ /dev/null
@@ -1,80 +0,0 @@
-package ui
-
-import (
-	tb "github.com/nsf/termbox-go"
-
-	"git.sr.ht/~sircmpwn/aerc2/config"
-)
-
-func Initialize(conf *config.AercConfig) (*UIState, error) {
-	state := UIState{
-		Config:       conf,
-		InvalidPanes: InvalidateAll,
-
-		tbEvents: make(chan tb.Event, 10),
-	}
-	if err := tb.Init(); err != nil {
-		return nil, err
-	}
-	tb.SetInputMode(tb.InputEsc | tb.InputMouse)
-	tb.SetOutputMode(tb.Output256)
-	go (func() {
-		for !state.Exit {
-			state.tbEvents <- tb.PollEvent()
-		}
-	})()
-	return &state, nil
-}
-
-func (state *UIState) Close() {
-	tb.Close()
-}
-
-func (state *UIState) AddTab(tab AercTab) {
-	state.Tabs = append(state.Tabs, tab)
-}
-
-func (state *UIState) Invalidate(what uint) {
-	state.InvalidPanes |= what
-}
-
-func (state *UIState) calcGeometries() {
-	width, height := tb.Size()
-	// TODO: more
-	state.Panes.TabView = Geometry{
-		Row:    0,
-		Col:    0,
-		Width:  width,
-		Height: height,
-	}
-}
-
-func (state *UIState) Tick() bool {
-	select {
-	case event := <-state.tbEvents:
-		switch event.Type {
-		case tb.EventKey:
-			if event.Key == tb.KeyEsc {
-				state.Exit = true
-			}
-		case tb.EventResize:
-			state.Invalidate(InvalidateAll)
-		}
-	default:
-		// no-op
-		break
-	}
-	if state.InvalidPanes != 0 {
-		if state.InvalidPanes&InvalidateAll == InvalidateAll {
-			tb.Clear(tb.ColorDefault, tb.ColorDefault)
-			state.calcGeometries()
-		}
-		if state.InvalidPanes&InvalidateTabs != 0 {
-			tab := state.Tabs[state.SelectedTab]
-			tab.Render(state.Panes.TabView)
-		}
-		tb.Flush()
-		state.InvalidPanes = 0
-	}
-	return true
-}
diff --git a/ui/types.go b/ui/types.go
index 588c3b3..14a91c3 100644
--- a/ui/types.go
+++ b/ui/types.go
@@ -7,14 +7,18 @@ import (
 )
 
 const (
-	Valid          = 0
-	InvalidateTabs = 1 << iota
+	Valid             = 0
+	InvalidateTabList = 1 << iota
+	InvalidateTabView
 	InvalidateSidebar
 	InvalidateStatusBar
 )
 
 const (
-	InvalidateAll = InvalidateTabs | InvalidateSidebar | InvalidateStatusBar
+	InvalidateAll = InvalidateTabList |
+		InvalidateTabView |
+		InvalidateSidebar |
+		InvalidateStatusBar
 )
 
 type Geometry struct {
@@ -26,7 +30,6 @@ type Geometry struct {
 
 type AercTab interface {
 	Name() string
-	Invalid() bool
 	Render(at Geometry)
 	SetParent(parent *UIState)
 }
diff --git a/ui/ui.go b/ui/ui.go
new file mode 100644
index 0000000..f01af08
--- /dev/null
+++ b/ui/ui.go
@@ -0,0 +1,88 @@
+package ui
+
+import (
+	tb "github.com/nsf/termbox-go"
+
+	"git.sr.ht/~sircmpwn/aerc2/config"
+)
+
+func Initialize(conf *config.AercConfig) (*UIState, error) {
+	state := UIState{
+		Config:       conf,
+		InvalidPanes: InvalidateAll,
+
+		tbEvents: make(chan tb.Event, 10),
+	}
+	if err := tb.Init(); err != nil {
+		return nil, err
+	}
+	tb.SetInputMode(tb.InputEsc | tb.InputMouse)
+	tb.SetOutputMode(tb.Output256)
+	go (func() {
+		for !state.Exit {
+			state.tbEvents <- tb.PollEvent()
+		}
+	})()
+	return &state, nil
+}
+
+func (state *UIState) Close() {
+	tb.Close()
+}
+
+func (state *UIState) AddTab(tab AercTab) {
+	tab.SetParent(state)
+	state.Tabs = append(state.Tabs, tab)
+}
+
+func (state *UIState) Invalidate(what uint) {
+	state.InvalidPanes |= what
+}
+
+func (state *UIState) InvalidateFrom(tab AercTab) {
+	if state.Tabs[state.SelectedTab] == tab {
+		state.Invalidate(InvalidateTabView)
+	}
+}
+
+func (state *UIState) calcGeometries() {
+	width, height := tb.Size()
+	// TODO: more
+	state.Panes.TabView = Geometry{
+		Row:    0,
+		Col:    0,
+		Width:  width,
+		Height: height,
+	}
+}
+
+func (state *UIState) Tick() bool {
+	select {
+	case event := <-state.tbEvents:
+		switch event.Type {
+		case tb.EventKey:
+			if event.Key == tb.KeyEsc {
+				state.Exit = true
+			}
+		case tb.EventResize:
+			state.Invalidate(InvalidateAll)
+		}
+	default:
+		// no-op
+		break
+	}
+	if state.InvalidPanes != 0 {
+		invalid := state.InvalidPanes
+		state.InvalidPanes = 0
+		if invalid&InvalidateAll == InvalidateAll {
+			tb.Clear(tb.ColorDefault, tb.ColorDefault)
+			state.calcGeometries()
+		}
+		if invalid&InvalidateTabView != 0 {
+			tab := state.Tabs[state.SelectedTab]
+			tab.Render(state.Panes.TabView)
+		}
+		tb.Flush()
+	}
+	return true
+}
-- 
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