cef/tests/ceftests/routing_test_handler.h
Marshall Greenblatt 241941a44a Move message routing from CefBrowser to CefFrame (see issue #2498).
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.
2019-05-29 17:44:56 +03:00

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// Copyright (c) 2014 The Chromium Embedded Framework 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 CEF_TESTS_UNITTESTS_ROUTING_TEST_HANDLER_H_
#define CEF_TESTS_UNITTESTS_ROUTING_TEST_HANDLER_H_
#pragma once
#include "include/wrapper/cef_message_router.h"
#include "tests/ceftests/test_handler.h"
// Extends TestHandler to provide message routing functionality. The
// RoutingTestHandler implementation must be called from subclass
// overrides unless otherwise indicated.
class RoutingTestHandler : public TestHandler,
public CefMessageRouterBrowserSide::Handler {
public:
RoutingTestHandler();
void OnAfterCreated(CefRefPtr<CefBrowser> browser) override;
void OnBeforeClose(CefRefPtr<CefBrowser> browser) override;
void OnRenderProcessTerminated(CefRefPtr<CefBrowser> browser,
TerminationStatus status) override;
// Only call this method if the navigation isn't canceled.
bool OnBeforeBrowse(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
CefRefPtr<CefRequest> request,
bool user_gesture,
bool is_redirect) override;
// Returns true if the router handled the navigation.
bool OnProcessMessageReceived(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
CefProcessId source_process,
CefRefPtr<CefProcessMessage> message) override;
private:
CefRefPtr<CefMessageRouterBrowserSide> message_router_;
};
#endif // CEF_TESTS_UNITTESTS_ROUTING_TEST_HANDLER_H_