Index: ui/base/cocoa/remote_layer_api.h |
diff --git a/ui/base/cocoa/remote_layer_api.h b/ui/base/cocoa/remote_layer_api.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8d704af3d2f0a50d2fe570891041c700dd26e115 |
--- /dev/null |
+++ b/ui/base/cocoa/remote_layer_api.h |
@@ -0,0 +1,59 @@ |
+// 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. |
+ |
+#ifndef UI_BASE_COCOA_REMOTE_LAYER_API_H_ |
+#define UI_BASE_COCOA_REMOTE_LAYER_API_H_ |
+ |
+#if defined(__OBJC__) |
+#import <Cocoa/Cocoa.h> |
+#endif // __OBJC__ |
+ |
+#include "ui/base/ui_base_export.h" |
+ |
+// The CGSConnectionID is used to create the CAContext in the process that is |
+// going to share the CALayers that it is rendering to another process to |
+// display. |
+extern "C" { |
+typedef uint32_t CGSConnectionID; |
+CGSConnectionID CGSMainConnectionID(void); |
Ken Russell (switch to Gerrit)
2014/06/20 18:37:40
Does it really work on systems which don't support
Avi (use Gerrit)
2014/06/20 18:42:18
CGSMainConnectionID() has been around forever. You
ccameron
2014/06/20 18:44:15
Cause it's not documented, I'm not sure when it wa
|
+}; |
+ |
+// The CAContextID type identifies a CAContext across processes. This is the |
+// token that is passed from the process that is sharing the CALayer that it is |
+// rendering to the process that will be displaying that CALayer. |
+typedef uint32_t CAContextID; |
+ |
+#if defined(__OBJC__) |
+ |
+// The CAContext has a static CAContextID which can be sent to another process. |
+// When a CALayerHost is created using that CAContextID in another process, the |
+// content displayed by that CALayerHost will be the content of the CALayer |
+// that is set as the |layer| property on the CAContext. |
+@interface CAContext : NSObject |
++ (id)contextWithCGSConnection:(CAContextID)contextId |
+ options:(NSDictionary*)optionsDict; |
+@property(readonly) CAContextID contextId; |
+@property(retain) CALayer *layer; |
+@end |
+ |
+// The CALayerHost is created in the process that will display the content |
+// being rendered by another process. Setting the |contextId| property on |
+// an object of this class will make this layer display the content of the |
+// CALayer that is set to the CAContext with that CAContextID in the layer |
+// sharing process. |
+@interface CALayerHost : CALayer |
+@property CAContextID contextId; |
+@end |
+ |
+#endif // __OBJC__ |
+ |
+namespace ui { |
+ |
+// This function will check if all of the interfaces listed above are supported |
+// on the system, and return true if they are. |
+bool UI_BASE_EXPORT RemoteLayerAPISupported(); |
+ |
+} // namespace ui |
+ |
+#endif // UI_BASE_COCOA_REMOTE_LAYER_API_H_ |