iOS Chromoting Client

remoting/ios/utility.mm

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+#import "Utility.h"
+
+@implementation Utility
+
++ (BOOL)isPad {
+  return (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad);
+}
+
++ (BOOL)isInLandscapeMode {
+  UIInterfaceOrientation orientation =
+      [UIApplication sharedApplication].statusBarOrientation;
+
+  if ((orientation == UIInterfaceOrientationLandscapeLeft) ||
+      (orientation == UIInterfaceOrientationLandscapeRight)) {
+    return YES;
+  }
+  return NO;
+}
+
++ (CGSize)getOrientatedSize:(CGSize)size
+    shouldWidthBeLongestSide:(BOOL)shouldWidthBeLongestSide {
+  if (shouldWidthBeLongestSide && (size.height > size.width)) {
+    return CGSizeMake(size.height, size.width);
+  }
+  return size;
+}
+
++ (void)showAlert:(NSString*)title message:(NSString*)message {
+  UIAlertView* alert;
+  alert = [[UIAlertView alloc] init];
+  alert.title = title;
+  alert.message = message;
+  alert.delegate = nil;
+  [alert addButtonWithTitle:@"OK"];
+  [alert show];
+}
+
++ (NSString*)appVersionNumberDisplayString {
+  NSDictionary* infoDictionary = [[NSBundle mainBundle] infoDictionary];
+
+  NSString* majorVersion =
+      [infoDictionary objectForKey:@"CFBundleShortVersionString"];
+  NSString* minorVersion = [infoDictionary objectForKey:@"CFBundleVersion"];
+
+  return [NSString
+      stringWithFormat:@"Version %@ (%@)", majorVersion, minorVersion];
+}
+
++ (void)bindTextureForIOS:(GLuint)glName {
+  glBindTexture(GL_TEXTURE_2D, glName);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+}
+
++ (void)logGLErrorCode:(NSString*)funcName {
+  GLenum errorCode = 1;
+
+  while (errorCode != 0) {
+    errorCode = glGetError();  // I don't know why this is returning an error
+                               // on the first call to this function, but if I
+                               // don't read it, then stuff doesn't work...
+#if DEBUG
+    if (errorCode != 0) {
+      NSLog(@"glerror in %@: %X", funcName, errorCode);
+    }
+#endif  // DEBUG
+  }
+}
+
++ (void)drawSubRectToGLFromRectOfSize:(const webrtc::DesktopSize&)rectSize
+                              subRect:(const webrtc::DesktopRect&)subRect
+                                 data:(const uint8_t*)data {
+  DCHECK(rectSize.width() >= subRect.width());
+  DCHECK(rectSize.height() >= subRect.height());
+  DCHECK(rectSize.width() >= (subRect.left() + subRect.width()));
+  DCHECK(rectSize.height() >= (subRect.top() + subRect.height()));
+  DCHECK(data);
+
+  glTexSubImage2D(GL_TEXTURE_2D,
+                  0,
+                  subRect.left(),
+                  subRect.top(),
+                  subRect.width(),
+                  subRect.height(),
+                  GL_RGBA,
+                  GL_UNSIGNED_BYTE,
+                  data);
+}
+
++ (void)moveMouse:(HostProxy*)controller
+               at:(const webrtc::DesktopVector&)point {
+  [controller mouseAction:point
+               wheelDelta:webrtc::DesktopVector(0, 0)
+              whichButton:0
+               buttonDown:NO];
+}
+
++ (void)leftClickOn:(HostProxy*)controller
+                 at:(const webrtc::DesktopVector&)point {
+  [controller mouseAction:point
+               wheelDelta:webrtc::DesktopVector(0, 0)
+              whichButton:1
+               buttonDown:YES];
+  [controller mouseAction:point
+               wheelDelta:webrtc::DesktopVector(0, 0)
+              whichButton:1
+               buttonDown:NO];
+}
+
++ (void)middleClickOn:(HostProxy*)controller
+                   at:(const webrtc::DesktopVector&)point {
+  [controller mouseAction:point
+               wheelDelta:webrtc::DesktopVector(0, 0)
+              whichButton:2
+               buttonDown:YES];
+  [controller mouseAction:point
+               wheelDelta:webrtc::DesktopVector(0, 0)
+              whichButton:2
+               buttonDown:NO];
+}
+
++ (void)rightClickOn:(HostProxy*)controller
+                  at:(const webrtc::DesktopVector&)point {
+  [controller mouseAction:point
+               wheelDelta:webrtc::DesktopVector(0, 0)
+              whichButton:3
+               buttonDown:YES];
+  [controller mouseAction:point
+               wheelDelta:webrtc::DesktopVector(0, 0)
+              whichButton:3
+               buttonDown:NO];
+}
+
++ (void)mouseScroll:(HostProxy*)controller
+                 at:(const webrtc::DesktopVector&)point
+              delta:(const webrtc::DesktopVector&)delta {
+  [controller mouseAction:point wheelDelta:delta whichButton:0 buttonDown:NO];
+}
+
+@end