cef/include/capi/cef_render_process_handler_capi.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

179 lines
6.9 KiB
C

// Copyright (c) 2019 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//
// $hash=6c6efd722dda7480a5449ef31f1d6d9a16fd3465$
//
#ifndef CEF_INCLUDE_CAPI_CEF_RENDER_PROCESS_HANDLER_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_RENDER_PROCESS_HANDLER_CAPI_H_
#pragma once
#include "include/capi/cef_base_capi.h"
#include "include/capi/cef_browser_capi.h"
#include "include/capi/cef_dom_capi.h"
#include "include/capi/cef_frame_capi.h"
#include "include/capi/cef_load_handler_capi.h"
#include "include/capi/cef_process_message_capi.h"
#include "include/capi/cef_v8_capi.h"
#include "include/capi/cef_values_capi.h"
#ifdef __cplusplus
extern "C" {
#endif
///
// Structure used to implement render process callbacks. The functions of this
// structure will be called on the render process main thread (TID_RENDERER)
// unless otherwise indicated.
///
typedef struct _cef_render_process_handler_t {
///
// Base structure.
///
cef_base_ref_counted_t base;
///
// Called after the render process main thread has been created. |extra_info|
// is a read-only value originating from
// cef_browser_process_handler_t::on_render_process_thread_created(). Do not
// keep a reference to |extra_info| outside of this function.
///
void(CEF_CALLBACK* on_render_thread_created)(
struct _cef_render_process_handler_t* self,
struct _cef_list_value_t* extra_info);
///
// Called after WebKit has been initialized.
///
void(CEF_CALLBACK* on_web_kit_initialized)(
struct _cef_render_process_handler_t* self);
///
// Called after a browser has been created. When browsing cross-origin a new
// browser will be created before the old browser with the same identifier is
// destroyed. |extra_info| is a read-only value originating from
// cef_browser_host_t::cef_browser_host_create_browser(),
// cef_browser_host_t::cef_browser_host_create_browser_sync(),
// cef_life_span_handler_t::on_before_popup() or
// cef_browser_view_t::cef_browser_view_create().
///
void(CEF_CALLBACK* on_browser_created)(
struct _cef_render_process_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_dictionary_value_t* extra_info);
///
// Called before a browser is destroyed.
///
void(CEF_CALLBACK* on_browser_destroyed)(
struct _cef_render_process_handler_t* self,
struct _cef_browser_t* browser);
///
// Return the handler for browser load status events.
///
struct _cef_load_handler_t*(CEF_CALLBACK* get_load_handler)(
struct _cef_render_process_handler_t* self);
///
// Called immediately after the V8 context for a frame has been created. To
// retrieve the JavaScript 'window' object use the
// cef_v8context_t::get_global() function. V8 handles can only be accessed
// from the thread on which they are created. A task runner for posting tasks
// on the associated thread can be retrieved via the
// cef_v8context_t::get_task_runner() function.
///
void(CEF_CALLBACK* on_context_created)(
struct _cef_render_process_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame,
struct _cef_v8context_t* context);
///
// Called immediately before the V8 context for a frame is released. No
// references to the context should be kept after this function is called.
///
void(CEF_CALLBACK* on_context_released)(
struct _cef_render_process_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame,
struct _cef_v8context_t* context);
///
// Called for global uncaught exceptions in a frame. Execution of this
// callback is disabled by default. To enable set
// CefSettings.uncaught_exception_stack_size > 0.
///
void(CEF_CALLBACK* on_uncaught_exception)(
struct _cef_render_process_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame,
struct _cef_v8context_t* context,
struct _cef_v8exception_t* exception,
struct _cef_v8stack_trace_t* stackTrace);
///
// Called when a new node in the the browser gets focus. The |node| value may
// be NULL if no specific node has gained focus. The node object passed to
// this function represents a snapshot of the DOM at the time this function is
// executed. DOM objects are only valid for the scope of this function. Do not
// keep references to or attempt to access any DOM objects outside the scope
// of this function.
///
void(CEF_CALLBACK* on_focused_node_changed)(
struct _cef_render_process_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame,
struct _cef_domnode_t* node);
///
// Called when a new message is received from a different process. Return true
// (1) if the message was handled or false (0) otherwise. Do not keep a
// reference to or attempt to access the message outside of this callback.
///
int(CEF_CALLBACK* on_process_message_received)(
struct _cef_render_process_handler_t* self,
struct _cef_browser_t* browser,
struct _cef_frame_t* frame,
cef_process_id_t source_process,
struct _cef_process_message_t* message);
} cef_render_process_handler_t;
#ifdef __cplusplus
}
#endif
#endif // CEF_INCLUDE_CAPI_CEF_RENDER_PROCESS_HANDLER_CAPI_H_