call UI: highlight selected video input

Change-Id: I443f661028675c99ebdb180e1cf2254533a580b4

src/CurrentCallVC.mm

@@ -994,6 +994,18 @@ CVPixelBufferRef pixelBufferPreview;
     return mediaModel->getDevices();
 }
 
+-(NSString*) getDefaultDeviceName {
+    auto type = mediaModel->getCurrentRenderedDevice(callUid_).type;
+    switch (type) {
+        case lrc::api::video::DeviceType::CAMERA:
+            return @(mediaModel->getCurrentRenderedDevice(callUid_).name.c_str());
+        case lrc::api::video::DeviceType::DISPLAY:
+            return NSLocalizedString(@"Share screen", @"Contextual menu entry");
+        default:
+            return @"";
+    }
+}
+
 -(void) switchToFile:(std::string)uri {
     mediaModel->setInputFile(QUrl::fromLocalFile(uri.c_str()).toLocalFile().toStdString());
 }

src/views/CallView.h

@@ -30,6 +30,7 @@
 -(void) switchToDevice:(int)deviceID;
 -(void) switchToFile:(std::string)uri;
 -(std::vector<std::string>) getDeviceList;
+-(NSString *) getDefaultDeviceName;
 
 @end
 

src/views/CallView.mm

@@ -29,6 +29,8 @@
 @end
 
 @implementation CallView
+
+NSString *currentDevice;
 @synthesize contextualMenu;
 @synthesize shouldAcceptInteractions;
 
@@ -174,6 +176,8 @@
 
     auto devices = [self.callDelegate getDeviceList];
     
+    currentDevice = [self.callDelegate getDefaultDeviceName];
+
     for(int i = 0 ; i < devices.size() ; ++i) {
         std::string device = devices[i];
         [contextualMenu insertItemWithTitle:@(device.c_str()) action:@selector(switchInput:) keyEquivalent:@"" atIndex:i];
@@ -191,6 +195,10 @@
                                 atIndex:contextualMenu.itemArray.count];
 #endif
 
+    auto menuItem = [contextualMenu itemWithTitle:currentDevice];
+    if(menuItem) {
+        [menuItem setState: NSControlStateValueOn];
+    }
     [NSMenu popUpContextMenu:contextualMenu withEvent:theEvent forView:self];
 }
 
@@ -224,17 +232,26 @@
 
 - (void) switchInput:(NSMenuItem*) sender
 {
+    if([sender.title isEqualToString:currentDevice]) {
+        return;
+    }
     int index = [contextualMenu indexOfItem:sender];
     [self.callDelegate switchToDevice: index];
 }
 
 - (void) captureScreen:(NSMenuItem*) sender
 {
+    if([sender.title isEqualToString:currentDevice]) {
+        return;
+    }
     [self.callDelegate screenShare];
 }
 
 - (void) chooseFile:(NSMenuItem*) sender
 {
+    if([sender.title isEqualToString:currentDevice]) {
+        return;
+    }
     NSOpenPanel *browsePanel = [[NSOpenPanel alloc] init];
     [browsePanel setDirectoryURL:[NSURL URLWithString:NSHomeDirectory()]];
     [browsePanel setCanChooseFiles:YES];