From 3c3bdfe1a8b47ffbad3360c090e28de1325d9fd3 Mon Sep 17 00:00:00 2001
From: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@linphone.org>
Date: Fri, 13 Jan 2012 12:17:57 +0100
Subject: [PATCH] iPad: disable video preview on main screen when 'Enable
 video' setting is off

---
 Classes/MainScreenWithVideoPreview.m   | 49 +++++++++++++++++---------
 Classes/MainScreenWithVideoPreview.xib |  5 ++-
 2 files changed, 37 insertions(+), 17 deletions(-)

diff --git a/Classes/MainScreenWithVideoPreview.m b/Classes/MainScreenWithVideoPreview.m
index 5c7d962b0..39764b38d 100644
--- a/Classes/MainScreenWithVideoPreview.m
+++ b/Classes/MainScreenWithVideoPreview.m
@@ -39,19 +39,11 @@
 }
 */
 
-// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
-- (void)viewDidLoad
-{
-    [super viewDidLoad];
-                        
+-(void) initVideoPreview {
     session = [[AVCaptureSession alloc] init];
     
-   
-    
     currentCamera = 0;
     
-
-    
     AVCaptureVideoPreviewLayer* previewLayer = [AVCaptureVideoPreviewLayer layerWithSession:session];
     
     previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;
@@ -62,7 +54,19 @@
     [session setSessionPreset:AVCaptureSessionPresetHigh];
     [session commitConfiguration];
     
-    [self useCameraAtIndex:0 startSession:NO];
+    [self useCameraAtIndex:0 startSession:NO];    
+}
+
+// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
+- (void)viewDidLoad
+{
+    [super viewDidLoad];
+                        
+    bool enableVideo = [[NSUserDefaults standardUserDefaults] boolForKey:@"enable_video_preference"];
+    
+    if (enableVideo) {
+        [self initVideoPreview ];
+    }
 }
 
 -(void) switchCameraPressed {
@@ -94,18 +98,31 @@
 
 
 -(void) showPreview:(BOOL) show {
-    if (show && !session.running) {
-        [window addSubview:self.view];
-        [window sendSubviewToBack:self.view];
-        [session startRunning];
-    } else if (!show && session.running) {
+    bool enableVideo = [[NSUserDefaults standardUserDefaults] boolForKey:@"enable_video_preference"];
+    
+    if (enableVideo) {
+        if (session == nil) {
+            [self initVideoPreview];
+        }
+        
+        if (show && !session.running) {
+            [window addSubview:self.view];
+            [window sendSubviewToBack:self.view];
+            [session startRunning];
+        } else if (!show && session.running) {
+            [self.view removeFromSuperview];
+            [session stopRunning];
+        }
+    } else {
+        if (session != nil)
+            [session stopRunning];
         [self.view removeFromSuperview];
-        [session stopRunning];
     }
 }
 
 -(void) viewDidAppear:(BOOL)animated {
     [phoneMainView.switchCamera addTarget:self action:@selector(switchCameraPressed) forControlEvents:UIControlEventTouchUpInside];
+    
 }
 
 -(void) viewDidDisappear:(BOOL)animated {
diff --git a/Classes/MainScreenWithVideoPreview.xib b/Classes/MainScreenWithVideoPreview.xib
index 7efd70f0a..2a0b84cae 100644
--- a/Classes/MainScreenWithVideoPreview.xib
+++ b/Classes/MainScreenWithVideoPreview.xib
@@ -44,10 +44,11 @@
 				<int key="NSvFlags">292</int>
 				<string key="NSFrameSize">{768, 1024}</string>
 				<reference key="NSSuperview"/>
+				<reference key="NSNextKeyView"/>
 				<string key="NSReuseIdentifierKey">_NS:196</string>
 				<object class="NSColor" key="IBUIBackgroundColor">
 					<int key="NSColorSpace">3</int>
-					<bytes key="NSWhite">MQA</bytes>
+					<bytes key="NSWhite">MC42NjY2NjY2NjY3AA</bytes>
 				</object>
 				<bool key="IBUIOpaque">NO</bool>
 				<bool key="IBUIClearsContextBeforeDrawing">NO</bool>
@@ -142,6 +143,7 @@
 					<int key="NSvFlags">266</int>
 					<string key="NSFrame">{{0, 975}, {768, 49}}</string>
 					<reference key="NSSuperview"/>
+					<reference key="NSNextKeyView"/>
 					<object class="NSColor" key="IBUIBackgroundColor">
 						<int key="NSColorSpace">3</int>
 						<bytes key="NSWhite">MCAwAA</bytes>
@@ -156,6 +158,7 @@
 					<int key="NSvFlags">274</int>
 					<string key="NSFrame">{{0, 20}, {768, 1004}}</string>
 					<reference key="NSSuperview"/>
+					<reference key="NSNextKeyView"/>
 					<string key="NSReuseIdentifierKey">_NS:212</string>
 					<object class="NSColor" key="IBUIBackgroundColor">
 						<int key="NSColorSpace">1</int>