call: fix progress animation

El Capitan handles animations differently and optimizes out
animations on off screen views. Progress animation was started when
Ring was launched, and the CurrentCall view is hidden at first,
therefore progress animation was never started.

This patch also simplifies layer handling.

Change-Id: I33f1b42ca3e813d780868a81f4e391138e4751a2
Tuleap: #269

src/CurrentCallVC.mm

@@ -89,9 +89,7 @@
 
 // Video
 @property (unsafe_unretained) IBOutlet CallView *videoView;
-@property CALayer* videoLayer;
 @property (unsafe_unretained) IBOutlet NSView *previewView;
-@property CALayer* previewLayer;
 
 @property RendererConnectionsHolder* previewHolder;
 @property RendererConnectionsHolder* videoHolder;
@@ -106,7 +104,7 @@
 @synthesize personLabel, actionHash, stateLabel, holdOnOffButton, hangUpButton,
             recordOnOffButton, pickUpButton, chatButton, transferButton, addParticipantButton, timeSpentLabel,
             muteVideoButton, muteAudioButton, controlsPanel, headerContainer, videoView,
-            videoLayer, previewLayer, previewView, splitView, loadingIndicator;
+            previewView, splitView, loadingIndicator;
 
 @synthesize previewHolder;
 @synthesize videoHolder;
@@ -149,20 +147,17 @@
 
     // Default values for this views
     [loadingIndicator setHidden:YES];
+
     [videoView setShouldAcceptInteractions:NO];
 
     [self.controlsPanel setHidden:current->hasParentCall()];
     [self.joinPanel setHidden:!current->hasParentCall()];
 
     switch (state) {
-        case Call::State::DIALING:
-            [loadingIndicator setHidden:NO];
-            break;
         case Call::State::NEW:
             break;
+        case Call::State::DIALING:
         case Call::State::INITIALIZATION:
-            [loadingIndicator setHidden:NO];
-            break;
         case Call::State::CONNECTED:
             [loadingIndicator setHidden:NO];
             break;
@@ -197,7 +192,6 @@
 {
     NSLog(@"INIT CurrentCall VC");
     [self.view setWantsLayer:YES];
-    [self.view setLayer:[CALayer layer]];
 
     actionHash[ (int)UserActionModel::Action::ACCEPT] = pickUpButton;
     actionHash[ (int)UserActionModel::Action::HOLD  ] = holdOnOffButton;
@@ -206,22 +200,17 @@
     actionHash[ (int)UserActionModel::Action::MUTE_AUDIO] = muteAudioButton;
     actionHash[ (int)UserActionModel::Action::MUTE_VIDEO] = muteVideoButton;
 
-    videoLayer = [CALayer layer];
     [videoView setWantsLayer:YES];
-    [videoView setLayer:videoLayer];
     [videoView.layer setBackgroundColor:[NSColor blackColor].CGColor];
     [videoView.layer setFrame:videoView.frame];
     [videoView.layer setContentsGravity:kCAGravityResizeAspect];
 
-    previewLayer = [CALayer layer];
     [previewView setWantsLayer:YES];
-    [previewView setLayer:previewLayer];
-    [previewLayer setBackgroundColor:[NSColor blackColor].CGColor];
-    [previewLayer setContentsGravity:kCAGravityResizeAspectFill];
-    [previewLayer setFrame:previewView.frame];
+    [previewView.layer setBackgroundColor:[NSColor blackColor].CGColor];
+    [previewView.layer setContentsGravity:kCAGravityResizeAspectFill];
+    [previewView.layer setFrame:previewView.frame];
 
     [controlsPanel setWantsLayer:YES];
-    [controlsPanel setLayer:[CALayer layer]];
     [controlsPanel.layer setBackgroundColor:[NSColor clearColor].CGColor];
     [controlsPanel.layer setFrame:controlsPanel.frame];
 
@@ -451,7 +440,7 @@
     [animation setFromValue:[NSValue valueWithPoint:frame.origin]];
     [animation setToValue:[NSValue valueWithPoint:self.view.superview.bounds.origin]];
     [animation setDuration:0.2f];
-    [animation setTimingFunction:[CAMediaTimingFunction functionWithControlPoints:.7 :0.9 :1 :1]];
+    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]];
     [CATransaction setCompletionBlock:^{
 
         // when call comes in we want to show the controls/header
@@ -462,6 +451,7 @@
         if(!CallModel::instance().selectedCall())
             return;
 
+        [loadingIndicator setAnimates:YES];
         [self updateCall];
 
         if (CallModel::instance().selectedCall()->hasMedia(Media::Media::Type::TEXT, Media::Media::Direction::IN)) {
@@ -516,9 +506,7 @@
 
 -(void) animateOut
 {
-    NSLog(@"animateOut");
     if(self.view.frame.origin.x < 0) {
-        NSLog(@"Already hidden");
         return;
     }
 
@@ -528,7 +516,7 @@
     [animation setFromValue:[NSValue valueWithPoint:self.view.frame.origin]];
     [animation setToValue:[NSValue valueWithPoint:frame.origin]];
     [animation setDuration:0.2f];
-    [animation setTimingFunction:[CAMediaTimingFunction functionWithControlPoints:.7 :0.9 :1 :1]];
+    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut]];
 
     [CATransaction setCompletionBlock:^{
         [self.view setHidden:YES];