Add support for direct DevTools protocol messaging (fixes issue #2961).

This change allows the client to directly send and receive DevTools protocol messages (send method calls, and receive method results and events) without requiring a DevTools front-end or remote-debugging session. This change includes additional supporting changes: - Add a new CefRequestHandler::OnDocumentAvailableInMainFrame callback (see issue #1454). - Add a CefParseJSON variant that accepts a UTF8-encoded buffer. - Add a `--devtools-protocol-log-file=<path>` command-line flag for logging protocol messages sent to/from the DevTools front-end while it is displayed. This is useful for understanding existing DevTools protocol usage. - Add a new "libcef_static_unittests" executable target to support light-weight unit tests of libcef_static internals (e.g. without requiring exposure via the CEF API). Files to be unittested are placed in the new "libcef_static_unittested" source_set which is then included by both the existing libcef_static library and the new unittests executable target. - Linux: Remove use_bundled_fontconfig=false, which is no longer required and causes unittest build errors (see issue #2424). This change also adds a cefclient demo for configuring offline mode using the DevTools protocol (fixes issue #245). This is controlled by the "Offline mode" context menu option and the `--offline` command-line switch which will launch cefclient in offline mode. When cefclient is offline all network requests will fail with ERR_INTERNET_DISCONNECTED and navigator.onLine will return false when called from JavaScript in any frame. This mode is per-browser so newly created browser windows will have the default mode. Note that configuring offline mode in this way will not update the Network tab UI ("Throtting" option) in a displayed DevTools front-end instance.
2025-06-05 21:39:12 +02:00 · 2020-06-12 20:54:08 -04:00
parent a9aef28966
commit 39aed35644
46 changed files with 2824 additions and 146 deletions
--- a/libcef_dll/cpptoc/dev_tools_message_observer_cpptoc.cc
+++ b/libcef_dll/cpptoc/dev_tools_message_observer_cpptoc.cc
@ -0,0 +1,184 @@
+// Copyright (c) 2020 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.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+// $hash=c4a7b4d679f1f2ed47fc31df3e2099962d5cb9d6$
+//
+
+#include "libcef_dll/cpptoc/dev_tools_message_observer_cpptoc.h"
+#include "libcef_dll/ctocpp/browser_ctocpp.h"
+#include "libcef_dll/shutdown_checker.h"
+
+namespace {
+
+// MEMBER FUNCTIONS - Body may be edited by hand.
+
+int CEF_CALLBACK dev_tools_message_observer_on_dev_tools_message(
+    struct _cef_dev_tools_message_observer_t* self,
+    cef_browser_t* browser,
+    const void* message,
+    size_t message_size) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return 0;
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser);
+  if (!browser)
+    return 0;
+  // Verify param: message; type: simple_byaddr
+  DCHECK(message);
+  if (!message)
+    return 0;
+
+  // Execute
+  bool _retval = CefDevToolsMessageObserverCppToC::Get(self)->OnDevToolsMessage(
+      CefBrowserCToCpp::Wrap(browser), message, message_size);
+
+  // Return type: bool
+  return _retval;
+}
+
+void CEF_CALLBACK dev_tools_message_observer_on_dev_tools_method_result(
+    struct _cef_dev_tools_message_observer_t* self,
+    cef_browser_t* browser,
+    int message_id,
+    int success,
+    const void* result,
+    size_t result_size) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser);
+  if (!browser)
+    return;
+  // Unverified params: result
+
+  // Execute
+  CefDevToolsMessageObserverCppToC::Get(self)->OnDevToolsMethodResult(
+      CefBrowserCToCpp::Wrap(browser), message_id, success ? true : false,
+      result, result_size);
+}
+
+void CEF_CALLBACK dev_tools_message_observer_on_dev_tools_event(
+    struct _cef_dev_tools_message_observer_t* self,
+    cef_browser_t* browser,
+    const cef_string_t* method,
+    const void* params,
+    size_t params_size) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser);
+  if (!browser)
+    return;
+  // Verify param: method; type: string_byref_const
+  DCHECK(method);
+  if (!method)
+    return;
+  // Unverified params: params
+
+  // Execute
+  CefDevToolsMessageObserverCppToC::Get(self)->OnDevToolsEvent(
+      CefBrowserCToCpp::Wrap(browser), CefString(method), params, params_size);
+}
+
+void CEF_CALLBACK dev_tools_message_observer_on_dev_tools_agent_attached(
+    struct _cef_dev_tools_message_observer_t* self,
+    cef_browser_t* browser) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser);
+  if (!browser)
+    return;
+
+  // Execute
+  CefDevToolsMessageObserverCppToC::Get(self)->OnDevToolsAgentAttached(
+      CefBrowserCToCpp::Wrap(browser));
+}
+
+void CEF_CALLBACK dev_tools_message_observer_on_dev_tools_agent_detached(
+    struct _cef_dev_tools_message_observer_t* self,
+    cef_browser_t* browser) {
+  shutdown_checker::AssertNotShutdown();
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser);
+  if (!browser)
+    return;
+
+  // Execute
+  CefDevToolsMessageObserverCppToC::Get(self)->OnDevToolsAgentDetached(
+      CefBrowserCToCpp::Wrap(browser));
+}
+
+}  // namespace
+
+// CONSTRUCTOR - Do not edit by hand.
+
+CefDevToolsMessageObserverCppToC::CefDevToolsMessageObserverCppToC() {
+  GetStruct()->on_dev_tools_message =
+      dev_tools_message_observer_on_dev_tools_message;
+  GetStruct()->on_dev_tools_method_result =
+      dev_tools_message_observer_on_dev_tools_method_result;
+  GetStruct()->on_dev_tools_event =
+      dev_tools_message_observer_on_dev_tools_event;
+  GetStruct()->on_dev_tools_agent_attached =
+      dev_tools_message_observer_on_dev_tools_agent_attached;
+  GetStruct()->on_dev_tools_agent_detached =
+      dev_tools_message_observer_on_dev_tools_agent_detached;
+}
+
+// DESTRUCTOR - Do not edit by hand.
+
+CefDevToolsMessageObserverCppToC::~CefDevToolsMessageObserverCppToC() {
+  shutdown_checker::AssertNotShutdown();
+}
+
+template <>
+CefRefPtr<CefDevToolsMessageObserver>
+CefCppToCRefCounted<CefDevToolsMessageObserverCppToC,
+                    CefDevToolsMessageObserver,
+                    cef_dev_tools_message_observer_t>::
+    UnwrapDerived(CefWrapperType type, cef_dev_tools_message_observer_t* s) {
+  NOTREACHED() << "Unexpected class type: " << type;
+  return nullptr;
+}
+
+template <>
+CefWrapperType
+    CefCppToCRefCounted<CefDevToolsMessageObserverCppToC,
+                        CefDevToolsMessageObserver,
+                        cef_dev_tools_message_observer_t>::kWrapperType =
+        WT_DEV_TOOLS_MESSAGE_OBSERVER;