Provide HostView with data required for creating a new and session, and render for CRD iOS.

remoting/client/ios/app/host_view_controller.mm

Index: remoting/client/ios/app/host_view_controller.mm
diff --git a/remoting/client/ios/app/host_view_controller.mm b/remoting/client/ios/app/host_view_controller.mm
index ad6041a2dedc21218ea31ee8aa2a7d527521d375..17e1a45f1e61c6a886a9abbbcde7ab6325c1e602 100644
--- a/remoting/client/ios/app/host_view_controller.mm
+++ b/remoting/client/ios/app/host_view_controller.mm
@@ -9,30 +9,21 @@
 #import "remoting/client/ios/app/host_view_controller.h"
 
 #import "ios/third_party/material_components_ios/src/components/Buttons/src/MaterialButtons.h"
-#import "remoting/client/display/sys_opengl.h"
-#import "remoting/client/ios/display/gl_display_handler.h"
-#import "remoting/client/ios/facade/remoting_service.h"
+#import "remoting/client/ios/session/remoting_client.h"
 
-#include "remoting/client/chromoting_client_runtime.h"
-#include "remoting/client/software_video_renderer.h"
-
-static const CGFloat kFabInset = 45.f;
+static const CGFloat kFabInset = 15.f;
 
 @interface HostViewController () {
-  EAGLContext* _context;
-  GlDisplayHandler* _display_handler;
-  remoting::SoftwareVideoRenderer* _video_renderer;
+  RemotingClient* _client;
 }
 @end
 
 @implementation HostViewController
 
-- (id)init {
+- (id)initWithClient:(RemotingClient*)client {
   self = [super init];
   if (self) {
-    // TODO(nicholss): For prod code, make sure to check for ES3 support and
-    // fall back to ES2 if needed.
-    _context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
+    _client = client;
   }
   return self;
 }
@@ -41,39 +32,28 @@ static const CGFloat kFabInset = 45.f;
 
 - (void)viewDidLoad {
   [super viewDidLoad];
-  // TODO(nicholss): Take a look at the following:
-  // components/Snackbar/examples/SnackbarOverlayViewExample.m
-  // to add the toast overlay.
-  MDCFloatingButton* floatingButton = [MDCFloatingButton new];
+  MDCFloatingButton* floatingButton =
+      [MDCFloatingButton floatingButtonWithShape:MDCFloatingButtonShapeMini];
   [floatingButton setTitle:@"+" forState:UIControlStateNormal];
-  [floatingButton sizeToFit];
   [floatingButton addTarget:self
                      action:@selector(didTap:)
            forControlEvents:UIControlEventTouchUpInside];
 
   UIImage* settingsImage = [UIImage imageNamed:@"Settings"];
   [floatingButton setImage:settingsImage forState:UIControlStateNormal];
-
-  floatingButton.frame = CGRectMake(
-      self.view.frame.size.width - floatingButton.frame.size.width - kFabInset,
-      self.view.frame.size.height - floatingButton.frame.size.height -
-          kFabInset,
-      floatingButton.frame.size.width, floatingButton.frame.size.height);
+  [floatingButton sizeToFit];
+  CGSize btnSize = floatingButton.frame.size;
+  floatingButton.frame =
+      CGRectMake(self.view.frame.size.width - btnSize.width - kFabInset,
+                 self.view.frame.size.height - btnSize.height - kFabInset,
+                 btnSize.width, btnSize.height);
 
   [self.view addSubview:floatingButton];
-
-  static_cast<GLKView*>(self.view).context = _context;
-  [self setupGL];
 }
 
 - (void)viewDidUnload {
   [super viewDidUnload];
-  [self tearDownGL];
-
-  if ([EAGLContext currentContext] == _context) {
-    [EAGLContext setCurrentContext:nil];
-  }
-  _context = nil;
+  // TODO(nicholss): There needs to be a hook to tell the client we are done.
 }
 
 - (BOOL)prefersStatusBarHidden {
@@ -81,44 +61,27 @@ static const CGFloat kFabInset = 45.f;
 }
 
 - (void)viewDidAppear:(BOOL)animated {
-  _video_renderer =
-      (remoting::SoftwareVideoRenderer*)[_display_handler CreateVideoRenderer]
-          .get();
+  [super viewDidAppear:animated];
+  GLKView* view = (GLKView*)self.view;
+  view.context = [_client.displayHandler GetEAGLContext];
 }
 
 - (void)viewWillDisappear:(BOOL)animated {
-  [super viewWillDisappear:NO];
+  [super viewWillDisappear:animated];
 }
 
 #pragma mark - GLKViewDelegate
 
-// In general, avoid expensive work in this function to maximize frame rate.
 - (void)glkView:(GLKView*)view drawInRect:(CGRect)rect {
-  if (_display_handler) {
-    [_display_handler glkView:view drawInRect:rect];
-  }
+  // Nothing to do that is synchronous yet.
 }
 
 #pragma mark - Private
 
-- (void)setupGL {
-  _display_handler = [[GlDisplayHandler alloc]
-      initWithRuntime:[[RemotingService SharedInstance] runtime]];
-  [_display_handler created];
-}
-
-- (void)tearDownGL {
-  // TODO(nicholss): Implement tearDownGL for the real application.
-  [_display_handler stop];
-  _display_handler = nil;
-  _video_renderer = nil;
-}
-
 - (void)didTap:(id)sender {
   // TODO(nicholss): The FAB is being used to close the window at the moment
   // just as a demo  as the integration continues. This will not be the case
   // in the final app.
-  [self tearDownGL];
   [self dismissViewControllerAnimated:YES completion:nil];
 }