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Move message routing from CefBrowser to CefFrame (see issue #2498).

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This change moves the SendProcessMessage method from CefBrowser to CefFrame and
adds CefBrowser parameters to OnProcessMessageReceived and
OnDraggableRegionsChanged.

The internal implementation has changed as follows:
- Frame IDs are now a 64-bit combination of the 32-bit render_process_id and
  render_routing_id values that uniquely identify a RenderFrameHost (RFH).
- CefFrameHostImpl objects are now managed by CefBrowserInfo with life span tied
  to RFH expectations. Specifically, a CefFrameHostImpl object representing a
  sub-frame will be created when a RenderFrame is created in the renderer
  process and detached when the associated RenderFrame is deleted or the
  renderer process in which it runs has died.
- The CefFrameHostImpl object representing the main frame will always be valid
  but the underlying RFH (and associated frame ID) may change over time as a
  result of cross-origin navigations. Despite these changes calling LoadURL on
  the main frame object in the browser process will always navigate as expected.
- Speculative RFHs, which may be created as a result of a cross-origin
  navigation and discarded if that navigation is not committed, are now handled
  correctly (e.g. ignored in most cases until they're committed).
- It is less likely, but still possible, to receive a CefFrame object with an
  invalid frame ID (ID < 0). This can happen in cases where a RFH has not yet
  been created for a sub-frame. For example, when OnBeforeBrowse is called
  before initiating navigation in a previously nonexisting sub-frame.

To test: All tests pass with NetworkService enabled and disabled.
This commit is contained in:
Marshall Greenblatt
2019-05-24 23:23:43 +03:00
parent 35295d2e27
commit 241941a44a
80 changed files with 2382 additions and 2378 deletions
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25
libcef_dll/cpptoc/frame_cpptoc.cc
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@ -9,11 +9,12 @@
// implementations. See the translator.README.txt file in the tools directory
// for more information.
//
// $hash=eaff0c45fa3549df59bb9e64d5ac189205136ed3$
// $hash=49a9d7412f4d9b8d5d7e15ce9f6f62e1b03ea248$
//
#include "libcef_dll/cpptoc/frame_cpptoc.h"
#include "libcef_dll/cpptoc/browser_cpptoc.h"
#include "libcef_dll/cpptoc/process_message_cpptoc.h"
#include "libcef_dll/cpptoc/request_cpptoc.h"
#include "libcef_dll/cpptoc/urlrequest_cpptoc.h"
#include "libcef_dll/cpptoc/v8context_cpptoc.h"
@ -440,6 +441,27 @@ frame_create_urlrequest(struct _cef_frame_t* self,
return CefURLRequestCppToC::Wrap(_retval);
}
void CEF_CALLBACK
frame_send_process_message(struct _cef_frame_t* self,
cef_process_id_t target_process,
struct _cef_process_message_t* message) {
shutdown_checker::AssertNotShutdown();
// AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
DCHECK(self);
if (!self)
return;
// Verify param: message; type: refptr_same
DCHECK(message);
if (!message)
return;
// Execute
CefFrameCppToC::Get(self)->SendProcessMessage(
target_process, CefProcessMessageCppToC::Unwrap(message));
}
} // namespace
// CONSTRUCTOR - Do not edit by hand.
@ -470,6 +492,7 @@ CefFrameCppToC::CefFrameCppToC() {
GetStruct()->get_v8context = frame_get_v8context;
GetStruct()->visit_dom = frame_visit_dom;
GetStruct()->create_urlrequest = frame_create_urlrequest;
GetStruct()->send_process_message = frame_send_process_message;
}
// DESTRUCTOR - Do not edit by hand.