From 30d8edcb20c7d57bba42b1dde454a55b2ddd1f8c Mon Sep 17 00:00:00 2001
From: Vladimir Markelov <vladimir.markelov@nexenta.com>
Date: Wed, 21 Oct 2015 09:38:43 -0700
Subject: [PATCH] closes #8 - modality

---
 composer.go  | 10 ++++++++--
 consts.go    |  2 ++
 interface.go |  2 ++
 window.go    | 10 ++++++++++
 4 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/composer.go b/composer.go
index 171853e..c46bd9f 100644
--- a/composer.go
+++ b/composer.go
@@ -157,6 +157,10 @@ func (c *Composer) moveActiveWindowToBottom() bool {
 		return false
 	}
 
+	if c.topView().Modal() {
+		return false
+	}
+
 	event := Event{Type: EventActivate, X: 0} // send deactivated
 	c.sendEventToActiveView(event)
 
@@ -313,8 +317,7 @@ func (c *Composer) processKeySeq(ev term.Event) bool {
 	if c.ctrlKey == term.KeyCtrlW {
 		switch ev.Key {
 		case term.KeyCtrlH:
-			c.moveActiveWindowToBottom()
-			return true
+			return c.moveActiveWindowToBottom()
 		default:
 			return false
 		}
@@ -361,6 +364,9 @@ func (c *Composer) processMouseClick(ev term.Event) {
 	}
 
 	if c.topView() != view {
+		if c.topView().Modal() {
+			return
+		}
 		event := Event{Type: EventActivate, X: 0} // send 'deactivated'
 		c.sendEventToActiveView(event)
 		c.activateView(view)
diff --git a/consts.go b/consts.go
index 158b51a..95a68c2 100644
--- a/consts.go
+++ b/consts.go
@@ -208,6 +208,8 @@ const (
 	EventChanged
 	// Button event - button was clicked
 	EventClicked
+	// dialog closed
+	EventDialogClose
 	// Close application
 	EventQuit
 )
diff --git a/interface.go b/interface.go
index c31b298..75a1c88 100644
--- a/interface.go
+++ b/interface.go
@@ -53,6 +53,8 @@ type View interface {
 	Screen() Screen
 	Parent() Control
 	HitTest(int, int) HitResult
+	SetModal(bool)
+	Modal() bool
 
 	Paddings() (int, int, int, int)
 	SetPaddings(int, int, int, int)
diff --git a/window.go b/window.go
index 1df75b4..264551c 100644
--- a/window.go
+++ b/window.go
@@ -14,6 +14,8 @@ type Window struct {
 	pack     PackType
 	children []Control
 	controls []Control
+	// dialog support
+	modal bool
 }
 
 func NewWindow(parent Screen, x, y, w, h int, title string) *Window {
@@ -460,3 +462,11 @@ func (w *Window) HitTest(x, y int) HitResult {
 
 	return HitInside
 }
+
+func (w *Window) SetModal(modal bool) {
+	w.modal = modal
+}
+
+func (w *Window) Modal() bool {
+	return w.modal
+}