blob: 416221c9b970546b964267db1a32be7b28c3b826 [file] [log] [blame]
// Copyright 2013 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.
#include "content/browser/frame_host/render_frame_host_impl.h"
#include <utility>
#include "base/bind.h"
#include "base/containers/hash_tables.h"
#include "base/lazy_instance.h"
#include "base/metrics/histogram.h"
#include "base/process/kill.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "content/browser/accessibility/accessibility_mode_helper.h"
#include "content/browser/accessibility/ax_tree_id_registry.h"
#include "content/browser/accessibility/browser_accessibility_manager.h"
#include "content/browser/accessibility/browser_accessibility_state_impl.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "content/browser/devtools/render_frame_devtools_agent_host.h"
#include "content/browser/download/mhtml_generation_manager.h"
#include "content/browser/frame_host/cross_process_frame_connector.h"
#include "content/browser/frame_host/cross_site_transferring_request.h"
#include "content/browser/frame_host/frame_mojo_shell.h"
#include "content/browser/frame_host/frame_tree.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/frame_host/navigation_handle_impl.h"
#include "content/browser/frame_host/navigation_request.h"
#include "content/browser/frame_host/navigator.h"
#include "content/browser/frame_host/navigator_impl.h"
#include "content/browser/frame_host/render_frame_host_delegate.h"
#include "content/browser/frame_host/render_frame_proxy_host.h"
#include "content/browser/frame_host/render_widget_host_view_child_frame.h"
#include "content/browser/geolocation/geolocation_service_context.h"
#include "content/browser/loader/resource_dispatcher_host_impl.h"
#include "content/browser/permissions/permission_service_context.h"
#include "content/browser/permissions/permission_service_impl.h"
#include "content/browser/presentation/presentation_service_impl.h"
#include "content/browser/renderer_host/input/input_router_impl.h"
#include "content/browser/renderer_host/input/timeout_monitor.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/renderer_host/render_view_host_delegate.h"
#include "content/browser/renderer_host/render_view_host_delegate_view.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "content/browser/wake_lock/wake_lock_service_context.h"
#include "content/browser/webui/web_ui_controller_factory_registry.h"
#include "content/common/accessibility_messages.h"
#include "content/common/frame_messages.h"
#include "content/common/input_messages.h"
#include "content/common/inter_process_time_ticks_converter.h"
#include "content/common/navigation_params.h"
#include "content/common/render_frame_setup.mojom.h"
#include "content/common/site_isolation_policy.h"
#include "content/common/swapped_out_messages.h"
#include "content/public/browser/ax_event_notification_details.h"
#include "content/public/browser/browser_accessibility_state.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_plugin_guest_manager.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/permission_manager.h"
#include "content/public/browser/permission_type.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/stream_handle.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/common/browser_side_navigation_policy.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/isolated_world_ids.h"
#include "content/public/common/url_constants.h"
#include "content/public/common/url_utils.h"
#include "ui/accessibility/ax_tree.h"
#include "ui/accessibility/ax_tree_update.h"
#include "url/gurl.h"
#if defined(OS_ANDROID)
#include "content/browser/mojo/service_registrar_android.h"
#endif
#if defined(OS_MACOSX)
#include "content/browser/frame_host/popup_menu_helper_mac.h"
#endif
#if defined(ENABLE_WEBVR)
#include "base/command_line.h"
#include "content/browser/vr/vr_device_manager.h"
#include "content/public/common/content_switches.h"
#endif
using base::TimeDelta;
namespace content {
namespace {
// The next value to use for the accessibility reset token.
int g_next_accessibility_reset_token = 1;
// The next value to use for the javascript callback id.
int g_next_javascript_callback_id = 1;
// Whether to allow injecting javascript into any kind of frame (for Android
// WebView).
bool g_allow_injecting_javascript = false;
// The (process id, routing id) pair that identifies one RenderFrame.
typedef std::pair<int32_t, int32_t> RenderFrameHostID;
typedef base::hash_map<RenderFrameHostID, RenderFrameHostImpl*>
RoutingIDFrameMap;
base::LazyInstance<RoutingIDFrameMap> g_routing_id_frame_map =
LAZY_INSTANCE_INITIALIZER;
// Translate a WebKit text direction into a base::i18n one.
base::i18n::TextDirection WebTextDirectionToChromeTextDirection(
blink::WebTextDirection dir) {
switch (dir) {
case blink::WebTextDirectionLeftToRight:
return base::i18n::LEFT_TO_RIGHT;
case blink::WebTextDirectionRightToLeft:
return base::i18n::RIGHT_TO_LEFT;
default:
NOTREACHED();
return base::i18n::UNKNOWN_DIRECTION;
}
}
} // namespace
// static
bool RenderFrameHostImpl::IsRFHStateActive(RenderFrameHostImplState rfh_state) {
return rfh_state == STATE_DEFAULT;
}
// static
RenderFrameHost* RenderFrameHost::FromID(int render_process_id,
int render_frame_id) {
return RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
}
#if defined(OS_ANDROID)
// static
void RenderFrameHost::AllowInjectingJavaScriptForAndroidWebView() {
g_allow_injecting_javascript = true;
}
#endif
// static
RenderFrameHostImpl* RenderFrameHostImpl::FromID(int process_id,
int routing_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
RoutingIDFrameMap* frames = g_routing_id_frame_map.Pointer();
RoutingIDFrameMap::iterator it = frames->find(
RenderFrameHostID(process_id, routing_id));
return it == frames->end() ? NULL : it->second;
}
// static
RenderFrameHost* RenderFrameHost::FromAXTreeID(
int ax_tree_id) {
return RenderFrameHostImpl::FromAXTreeID(ax_tree_id);
}
// static
RenderFrameHostImpl* RenderFrameHostImpl::FromAXTreeID(
AXTreeIDRegistry::AXTreeID ax_tree_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
AXTreeIDRegistry::FrameID frame_id =
AXTreeIDRegistry::GetInstance()->GetFrameID(ax_tree_id);
return RenderFrameHostImpl::FromID(frame_id.first, frame_id.second);
}
RenderFrameHostImpl::RenderFrameHostImpl(SiteInstance* site_instance,
RenderViewHostImpl* render_view_host,
RenderFrameHostDelegate* delegate,
RenderWidgetHostDelegate* rwh_delegate,
FrameTree* frame_tree,
FrameTreeNode* frame_tree_node,
int32_t routing_id,
int32_t widget_routing_id,
int flags)
: render_view_host_(render_view_host),
delegate_(delegate),
site_instance_(static_cast<SiteInstanceImpl*>(site_instance)),
process_(site_instance->GetProcess()),
cross_process_frame_connector_(NULL),
render_frame_proxy_host_(NULL),
frame_tree_(frame_tree),
frame_tree_node_(frame_tree_node),
render_widget_host_(nullptr),
routing_id_(routing_id),
render_frame_created_(false),
navigations_suspended_(false),
is_waiting_for_beforeunload_ack_(false),
unload_ack_is_for_navigation_(false),
is_loading_(false),
pending_commit_(false),
nav_entry_id_(0),
accessibility_reset_token_(0),
accessibility_reset_count_(0),
no_create_browser_accessibility_manager_for_testing_(false),
web_ui_type_(WebUI::kNoWebUI),
pending_web_ui_type_(WebUI::kNoWebUI),
should_reuse_web_ui_(false),
weak_ptr_factory_(this) {
bool is_swapped_out = !!(flags & CREATE_RF_SWAPPED_OUT);
bool hidden = !!(flags & CREATE_RF_HIDDEN);
frame_tree_->AddRenderViewHostRef(render_view_host_);
GetProcess()->AddRoute(routing_id_, this);
g_routing_id_frame_map.Get().insert(std::make_pair(
RenderFrameHostID(GetProcess()->GetID(), routing_id_),
this));
if (is_swapped_out) {
rfh_state_ = STATE_SWAPPED_OUT;
} else {
rfh_state_ = STATE_DEFAULT;
GetSiteInstance()->IncrementActiveFrameCount();
}
// New child frames should inherit the nav_entry_id of their parent.
if (frame_tree_node_->parent()) {
set_nav_entry_id(
frame_tree_node_->parent()->current_frame_host()->nav_entry_id());
}
SetUpMojoIfNeeded();
swapout_event_monitor_timeout_.reset(new TimeoutMonitor(base::Bind(
&RenderFrameHostImpl::OnSwappedOut, weak_ptr_factory_.GetWeakPtr())));
if (widget_routing_id != MSG_ROUTING_NONE) {
// TODO(avi): Once RenderViewHostImpl has-a RenderWidgetHostImpl, the main
// render frame should probably start owning the RenderWidgetHostImpl,
// so this logic checking for an already existing RWHI should be removed.
// https://crbug.com/545684
render_widget_host_ =
RenderWidgetHostImpl::FromID(GetProcess()->GetID(), widget_routing_id);
if (!render_widget_host_) {
DCHECK(frame_tree_node->parent());
render_widget_host_ = new RenderWidgetHostImpl(rwh_delegate, GetProcess(),
widget_routing_id, hidden);
render_widget_host_->set_owned_by_render_frame_host(true);
} else {
DCHECK(!render_widget_host_->owned_by_render_frame_host());
}
InputRouterImpl* ir =
static_cast<InputRouterImpl*>(render_widget_host_->input_router());
ir->SetFrameTreeNodeId(frame_tree_node_->frame_tree_node_id());
}
}
RenderFrameHostImpl::~RenderFrameHostImpl() {
// Release the WebUI instances before all else as the WebUI may accesses the
// RenderFrameHost during cleanup.
ClearAllWebUI();
GetProcess()->RemoveRoute(routing_id_);
g_routing_id_frame_map.Get().erase(
RenderFrameHostID(GetProcess()->GetID(), routing_id_));
if (delegate_ && render_frame_created_)
delegate_->RenderFrameDeleted(this);
bool is_active = IsRFHStateActive(rfh_state_);
// If this RenderFrameHost is swapped out, it already decremented the active
// frame count of the SiteInstance it belongs to.
if (is_active)
GetSiteInstance()->DecrementActiveFrameCount();
// If this RenderFrameHost is swapping with a RenderFrameProxyHost, the
// RenderFrame will already be deleted in the renderer process. Main frame
// RenderFrames will be cleaned up as part of deleting its RenderView. In all
// other cases, the RenderFrame should be cleaned up (if it exists).
if (is_active && !frame_tree_node_->IsMainFrame() && render_frame_created_)
Send(new FrameMsg_Delete(routing_id_));
// NULL out the swapout timer; in crash dumps this member will be null only if
// the dtor has run.
swapout_event_monitor_timeout_.reset();
for (const auto& iter: visual_state_callbacks_) {
iter.second.Run(false);
}
if (render_widget_host_ &&
render_widget_host_->owned_by_render_frame_host()) {
// Shutdown causes the RenderWidgetHost to delete itself.
render_widget_host_->ShutdownAndDestroyWidget(true);
}
// Notify the FrameTree that this RFH is going away, allowing it to shut down
// the corresponding RenderViewHost if it is no longer needed.
frame_tree_->ReleaseRenderViewHostRef(render_view_host_);
}
int RenderFrameHostImpl::GetRoutingID() {
return routing_id_;
}
AXTreeIDRegistry::AXTreeID RenderFrameHostImpl::GetAXTreeID() {
return AXTreeIDRegistry::GetInstance()->GetOrCreateAXTreeID(
GetProcess()->GetID(), routing_id_);
}
SiteInstanceImpl* RenderFrameHostImpl::GetSiteInstance() {
return site_instance_.get();
}
RenderProcessHost* RenderFrameHostImpl::GetProcess() {
return process_;
}
RenderFrameHost* RenderFrameHostImpl::GetParent() {
FrameTreeNode* parent_node = frame_tree_node_->parent();
if (!parent_node)
return NULL;
return parent_node->current_frame_host();
}
int RenderFrameHostImpl::GetFrameTreeNodeId() {
return frame_tree_node_->frame_tree_node_id();
}
const std::string& RenderFrameHostImpl::GetFrameName() {
return frame_tree_node_->frame_name();
}
bool RenderFrameHostImpl::IsCrossProcessSubframe() {
FrameTreeNode* parent_node = frame_tree_node_->parent();
if (!parent_node)
return false;
return GetSiteInstance() !=
parent_node->current_frame_host()->GetSiteInstance();
}
GURL RenderFrameHostImpl::GetLastCommittedURL() {
return frame_tree_node_->current_url();
}
url::Origin RenderFrameHostImpl::GetLastCommittedOrigin() {
// Origin is stored per-FTN, so it's incorrect to call for a non-current RFH.
CHECK(this == frame_tree_node_->current_frame_host());
return frame_tree_node_->current_origin();
}
gfx::NativeView RenderFrameHostImpl::GetNativeView() {
RenderWidgetHostView* view = render_view_host_->GetWidget()->GetView();
if (!view)
return NULL;
return view->GetNativeView();
}
void RenderFrameHostImpl::AddMessageToConsole(ConsoleMessageLevel level,
const std::string& message) {
Send(new FrameMsg_AddMessageToConsole(routing_id_, level, message));
}
void RenderFrameHostImpl::ExecuteJavaScript(
const base::string16& javascript) {
CHECK(CanExecuteJavaScript());
Send(new FrameMsg_JavaScriptExecuteRequest(routing_id_,
javascript,
0, false));
}
void RenderFrameHostImpl::ExecuteJavaScript(
const base::string16& javascript,
const JavaScriptResultCallback& callback) {
CHECK(CanExecuteJavaScript());
int key = g_next_javascript_callback_id++;
Send(new FrameMsg_JavaScriptExecuteRequest(routing_id_,
javascript,
key, true));
javascript_callbacks_.insert(std::make_pair(key, callback));
}
void RenderFrameHostImpl::ExecuteJavaScriptForTests(
const base::string16& javascript) {
Send(new FrameMsg_JavaScriptExecuteRequestForTests(routing_id_,
javascript,
0, false, false));
}
void RenderFrameHostImpl::ExecuteJavaScriptForTests(
const base::string16& javascript,
const JavaScriptResultCallback& callback) {
int key = g_next_javascript_callback_id++;
Send(new FrameMsg_JavaScriptExecuteRequestForTests(routing_id_, javascript,
key, true, false));
javascript_callbacks_.insert(std::make_pair(key, callback));
}
void RenderFrameHostImpl::ExecuteJavaScriptWithUserGestureForTests(
const base::string16& javascript) {
Send(new FrameMsg_JavaScriptExecuteRequestForTests(routing_id_,
javascript,
0, false, true));
}
void RenderFrameHostImpl::ExecuteJavaScriptInIsolatedWorld(
const base::string16& javascript,
const JavaScriptResultCallback& callback,
int world_id) {
if (world_id <= ISOLATED_WORLD_ID_GLOBAL ||
world_id > ISOLATED_WORLD_ID_MAX) {
// Return if the world_id is not valid.
NOTREACHED();
return;
}
int key = 0;
bool request_reply = false;
if (!callback.is_null()) {
request_reply = true;
key = g_next_javascript_callback_id++;
javascript_callbacks_.insert(std::make_pair(key, callback));
}
Send(new FrameMsg_JavaScriptExecuteRequestInIsolatedWorld(
routing_id_, javascript, key, request_reply, world_id));
}
RenderViewHost* RenderFrameHostImpl::GetRenderViewHost() {
return render_view_host_;
}
ServiceRegistry* RenderFrameHostImpl::GetServiceRegistry() {
return service_registry_.get();
}
blink::WebPageVisibilityState RenderFrameHostImpl::GetVisibilityState() {
// Works around the crashes seen in https://crbug.com/501863, where the
// active WebContents from a browser iterator may contain a render frame
// detached from the frame tree.
RenderWidgetHostView* view = RenderFrameHostImpl::GetView();
if (!view || !view->GetRenderWidgetHost())
return blink::WebPageVisibilityStateHidden;
// TODO(mlamouri,kenrb): call GetRenderWidgetHost() directly when it stops
// returning nullptr in some cases. See https://crbug.com/455245.
blink::WebPageVisibilityState visibility_state =
RenderWidgetHostImpl::From(view->GetRenderWidgetHost())->is_hidden()
? blink::WebPageVisibilityStateHidden
: blink::WebPageVisibilityStateVisible;
GetContentClient()->browser()->OverridePageVisibilityState(this,
&visibility_state);
return visibility_state;
}
bool RenderFrameHostImpl::Send(IPC::Message* message) {
if (IPC_MESSAGE_ID_CLASS(message->type()) == InputMsgStart) {
return render_view_host_->GetWidget()->input_router()->SendInput(
make_scoped_ptr(message));
}
return GetProcess()->Send(message);
}
bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
// Only process messages if the RenderFrame is alive.
if (!render_frame_created_)
return false;
// Filter out most IPC messages if this frame is swapped out.
// We still want to handle certain ACKs to keep our state consistent.
if (is_swapped_out()) {
if (!SwappedOutMessages::CanHandleWhileSwappedOut(msg)) {
// If this is a synchronous message and we decided not to handle it,
// we must send an error reply, or else the renderer will be stuck
// and won't respond to future requests.
if (msg.is_sync()) {
IPC::Message* reply = IPC::SyncMessage::GenerateReply(&msg);
reply->set_reply_error();
Send(reply);
}
// Don't continue looking for someone to handle it.
return true;
}
}
// This message map is for handling internal IPC messages which should not
// be dispatched to other objects.
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(RenderFrameHostImpl, msg)
// This message is synthetic and doesn't come from RenderFrame, but from
// RenderProcessHost.
IPC_MESSAGE_HANDLER(FrameHostMsg_RenderProcessGone, OnRenderProcessGone)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
// Internal IPCs should not be leaked outside of this object, so return
// early.
if (handled)
return true;
if (delegate_->OnMessageReceived(this, msg))
return true;
RenderFrameProxyHost* proxy =
frame_tree_node_->render_manager()->GetProxyToParent();
if (proxy && proxy->cross_process_frame_connector() &&
proxy->cross_process_frame_connector()->OnMessageReceived(msg))
return true;
handled = true;
IPC_BEGIN_MESSAGE_MAP(RenderFrameHostImpl, msg)
IPC_MESSAGE_HANDLER(FrameHostMsg_AddMessageToConsole, OnAddMessageToConsole)
IPC_MESSAGE_HANDLER(FrameHostMsg_Detach, OnDetach)
IPC_MESSAGE_HANDLER(FrameHostMsg_FrameFocused, OnFrameFocused)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartProvisionalLoad,
OnDidStartProvisionalLoad)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailProvisionalLoadWithError,
OnDidFailProvisionalLoadWithError)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailLoadWithError,
OnDidFailLoadWithError)
IPC_MESSAGE_HANDLER_GENERIC(FrameHostMsg_DidCommitProvisionalLoad,
OnDidCommitProvisionalLoad(msg))
IPC_MESSAGE_HANDLER(FrameHostMsg_DidDropNavigation, OnDidDropNavigation)
IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateState, OnUpdateState)
IPC_MESSAGE_HANDLER(FrameHostMsg_OpenURL, OnOpenURL)
IPC_MESSAGE_HANDLER(FrameHostMsg_DocumentOnLoadCompleted,
OnDocumentOnLoadCompleted)
IPC_MESSAGE_HANDLER(FrameHostMsg_BeforeUnload_ACK, OnBeforeUnloadACK)
IPC_MESSAGE_HANDLER(FrameHostMsg_SwapOut_ACK, OnSwapOutACK)
IPC_MESSAGE_HANDLER(FrameHostMsg_ContextMenu, OnContextMenu)
IPC_MESSAGE_HANDLER(FrameHostMsg_JavaScriptExecuteResponse,
OnJavaScriptExecuteResponse)
IPC_MESSAGE_HANDLER(FrameHostMsg_VisualStateResponse,
OnVisualStateResponse)
IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunJavaScriptMessage,
OnRunJavaScriptMessage)
IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunBeforeUnloadConfirm,
OnRunBeforeUnloadConfirm)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidAccessInitialDocument,
OnDidAccessInitialDocument)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeOpener, OnDidChangeOpener)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeName, OnDidChangeName)
IPC_MESSAGE_HANDLER(FrameHostMsg_EnforceStrictMixedContentChecking,
OnEnforceStrictMixedContentChecking)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidAssignPageId, OnDidAssignPageId)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeSandboxFlags,
OnDidChangeSandboxFlags)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeFrameOwnerProperties,
OnDidChangeFrameOwnerProperties)
IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateTitle, OnUpdateTitle)
IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateEncoding, OnUpdateEncoding)
IPC_MESSAGE_HANDLER(FrameHostMsg_BeginNavigation,
OnBeginNavigation)
IPC_MESSAGE_HANDLER(FrameHostMsg_DispatchLoad, OnDispatchLoad)
IPC_MESSAGE_HANDLER(FrameHostMsg_TextSurroundingSelectionResponse,
OnTextSurroundingSelectionResponse)
IPC_MESSAGE_HANDLER(AccessibilityHostMsg_Events, OnAccessibilityEvents)
IPC_MESSAGE_HANDLER(AccessibilityHostMsg_LocationChanges,
OnAccessibilityLocationChanges)
IPC_MESSAGE_HANDLER(AccessibilityHostMsg_FindInPageResult,
OnAccessibilityFindInPageResult)
IPC_MESSAGE_HANDLER(AccessibilityHostMsg_SnapshotResponse,
OnAccessibilitySnapshotResponse)
IPC_MESSAGE_HANDLER(FrameHostMsg_ToggleFullscreen, OnToggleFullscreen)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartLoading, OnDidStartLoading)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidStopLoading, OnDidStopLoading)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeLoadProgress,
OnDidChangeLoadProgress)
IPC_MESSAGE_HANDLER(FrameHostMsg_SerializeAsMHTMLResponse,
OnSerializeAsMHTMLResponse)
#if defined(OS_MACOSX) || defined(OS_ANDROID)
IPC_MESSAGE_HANDLER(FrameHostMsg_ShowPopup, OnShowPopup)
IPC_MESSAGE_HANDLER(FrameHostMsg_HidePopup, OnHidePopup)
#endif
IPC_END_MESSAGE_MAP()
// No further actions here, since we may have been deleted.
return handled;
}
void RenderFrameHostImpl::AccessibilitySetFocus(int object_id) {
Send(new AccessibilityMsg_SetFocus(routing_id_, object_id));
}
void RenderFrameHostImpl::AccessibilityDoDefaultAction(int object_id) {
Send(new AccessibilityMsg_DoDefaultAction(routing_id_, object_id));
}
void RenderFrameHostImpl::AccessibilityShowContextMenu(int acc_obj_id) {
Send(new AccessibilityMsg_ShowContextMenu(routing_id_, acc_obj_id));
}
void RenderFrameHostImpl::AccessibilityScrollToMakeVisible(
int acc_obj_id, const gfx::Rect& subfocus) {
Send(new AccessibilityMsg_ScrollToMakeVisible(
routing_id_, acc_obj_id, subfocus));
}
void RenderFrameHostImpl::AccessibilityScrollToPoint(
int acc_obj_id, const gfx::Point& point) {
Send(new AccessibilityMsg_ScrollToPoint(
routing_id_, acc_obj_id, point));
}
void RenderFrameHostImpl::AccessibilitySetScrollOffset(
int acc_obj_id, const gfx::Point& offset) {
Send(new AccessibilityMsg_SetScrollOffset(
routing_id_, acc_obj_id, offset));
}
void RenderFrameHostImpl::AccessibilitySetSelection(int anchor_object_id,
int anchor_offset,
int focus_object_id,
int focus_offset) {
Send(new AccessibilityMsg_SetSelection(routing_id_,
focus_object_id,
anchor_offset,
focus_object_id,
focus_offset));
}
void RenderFrameHostImpl::AccessibilitySetValue(
int object_id, const base::string16& value) {
Send(new AccessibilityMsg_SetValue(routing_id_, object_id, value));
}
bool RenderFrameHostImpl::AccessibilityViewHasFocus() const {
RenderWidgetHostView* view = render_view_host_->GetWidget()->GetView();
if (view)
return view->HasFocus();
return false;
}
gfx::Rect RenderFrameHostImpl::AccessibilityGetViewBounds() const {
RenderWidgetHostView* view = render_view_host_->GetWidget()->GetView();
if (view)
return view->GetViewBounds();
return gfx::Rect();
}
gfx::Point RenderFrameHostImpl::AccessibilityOriginInScreen(
const gfx::Rect& bounds) const {
RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
render_view_host_->GetWidget()->GetView());
if (view)
return view->AccessibilityOriginInScreen(bounds);
return gfx::Point();
}
void RenderFrameHostImpl::AccessibilityHitTest(const gfx::Point& point) {
Send(new AccessibilityMsg_HitTest(routing_id_, point));
}
void RenderFrameHostImpl::AccessibilitySetAccessibilityFocus(int acc_obj_id) {
Send(new AccessibilityMsg_SetAccessibilityFocus(routing_id_, acc_obj_id));
}
void RenderFrameHostImpl::AccessibilityReset() {
accessibility_reset_token_ = g_next_accessibility_reset_token++;
Send(new AccessibilityMsg_Reset(routing_id_, accessibility_reset_token_));
}
void RenderFrameHostImpl::AccessibilityFatalError() {
browser_accessibility_manager_.reset(NULL);
if (accessibility_reset_token_)
return;
accessibility_reset_count_++;
if (accessibility_reset_count_ >= kMaxAccessibilityResets) {
Send(new AccessibilityMsg_FatalError(routing_id_));
} else {
accessibility_reset_token_ = g_next_accessibility_reset_token++;
UMA_HISTOGRAM_COUNTS("Accessibility.FrameResetCount", 1);
Send(new AccessibilityMsg_Reset(routing_id_, accessibility_reset_token_));
}
}
gfx::AcceleratedWidget
RenderFrameHostImpl::AccessibilityGetAcceleratedWidget() {
RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
render_view_host_->GetWidget()->GetView());
if (view)
return view->AccessibilityGetAcceleratedWidget();
return gfx::kNullAcceleratedWidget;
}
gfx::NativeViewAccessible
RenderFrameHostImpl::AccessibilityGetNativeViewAccessible() {
RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
render_view_host_->GetWidget()->GetView());
if (view)
return view->AccessibilityGetNativeViewAccessible();
return NULL;
}
bool RenderFrameHostImpl::CreateRenderFrame(int proxy_routing_id,
int opener_routing_id,
int parent_routing_id,
int previous_sibling_routing_id) {
TRACE_EVENT0("navigation", "RenderFrameHostImpl::CreateRenderFrame");
DCHECK(!IsRenderFrameLive()) << "Creating frame twice";
// The process may (if we're sharing a process with another host that already
// initialized it) or may not (we have our own process or the old process
// crashed) have been initialized. Calling Init multiple times will be
// ignored, so this is safe.
if (!GetProcess()->Init())
return false;
DCHECK(GetProcess()->HasConnection());
FrameMsg_NewFrame_Params params;
params.routing_id = routing_id_;
params.proxy_routing_id = proxy_routing_id;
params.opener_routing_id = opener_routing_id;
params.parent_routing_id = parent_routing_id;
params.previous_sibling_routing_id = previous_sibling_routing_id;
params.replication_state = frame_tree_node()->current_replication_state();
// Normally, the replication state contains effective sandbox flags,
// excluding flags that were updated but have not taken effect. However, a
// new RenderFrame should use the pending sandbox flags, since it is being
// created as part of the navigation that will commit these flags. (I.e., the
// RenderFrame needs to know the flags to use when initializing the new
// document once it commits).
params.replication_state.sandbox_flags =
frame_tree_node()->pending_sandbox_flags();
params.frame_owner_properties = frame_tree_node()->frame_owner_properties();
if (render_widget_host_) {
params.widget_params.routing_id = render_widget_host_->GetRoutingID();
params.widget_params.hidden = render_widget_host_->is_hidden();
} else {
// MSG_ROUTING_NONE will prevent a new RenderWidget from being created in
// the renderer process.
params.widget_params.routing_id = MSG_ROUTING_NONE;
params.widget_params.hidden = true;
}
Send(new FrameMsg_NewFrame(params));
// The RenderWidgetHost takes ownership of its view. It is tied to the
// lifetime of the current RenderProcessHost for this RenderFrameHost.
// TODO(avi): This will need to change to initialize a
// RenderWidgetHostViewAura for the main frame once RenderViewHostImpl has-a
// RenderWidgetHostImpl. https://crbug.com/545684
if (parent_routing_id != MSG_ROUTING_NONE && render_widget_host_) {
RenderWidgetHostView* rwhv =
new RenderWidgetHostViewChildFrame(render_widget_host_);
rwhv->Hide();
}
if (proxy_routing_id != MSG_ROUTING_NONE) {
RenderFrameProxyHost* proxy = RenderFrameProxyHost::FromID(
GetProcess()->GetID(), proxy_routing_id);
// We have also created a RenderFrameProxy in FrameMsg_NewFrame above, so
// remember that.
proxy->set_render_frame_proxy_created(true);
}
// The renderer now has a RenderFrame for this RenderFrameHost. Note that
// this path is only used for out-of-process iframes. Main frame RenderFrames
// are created with their RenderView, and same-site iframes are created at the
// time of OnCreateChildFrame.
SetRenderFrameCreated(true);
return true;
}
void RenderFrameHostImpl::SetRenderFrameCreated(bool created) {
bool was_created = render_frame_created_;
render_frame_created_ = created;
// If the current status is different than the new status, the delegate
// needs to be notified.
if (delegate_ && (created != was_created)) {
if (created)
delegate_->RenderFrameCreated(this);
else
delegate_->RenderFrameDeleted(this);
}
if (created && render_widget_host_)
render_widget_host_->InitForFrame();
}
void RenderFrameHostImpl::Init() {
ResourceDispatcherHost::ResumeBlockedRequestsForFrameFromUI(this);
}
void RenderFrameHostImpl::OnAddMessageToConsole(
int32_t level,
const base::string16& message,
int32_t line_no,
const base::string16& source_id) {
if (delegate_->AddMessageToConsole(level, message, line_no, source_id))
return;
// Pass through log level only on WebUI pages to limit console spew.
const bool is_web_ui =
HasWebUIScheme(delegate_->GetMainFrameLastCommittedURL());
const int32_t resolved_level = is_web_ui ? level : ::logging::LOG_INFO;
// LogMessages can be persisted so this shouldn't be logged in incognito mode.
// This rule is not applied to WebUI pages, because source code of WebUI is a
// part of Chrome source code, and we want to treat messages from WebUI the
// same way as we treat log messages from native code.
if (::logging::GetMinLogLevel() <= resolved_level &&
(is_web_ui ||
!GetSiteInstance()->GetBrowserContext()->IsOffTheRecord())) {
logging::LogMessage("CONSOLE", line_no, resolved_level).stream()
<< "\"" << message << "\", source: " << source_id << " (" << line_no
<< ")";
}
}
void RenderFrameHostImpl::OnCreateChildFrame(
int new_routing_id,
blink::WebTreeScopeType scope,
const std::string& frame_name,
blink::WebSandboxFlags sandbox_flags,
const blink::WebFrameOwnerProperties& frame_owner_properties) {
// It is possible that while a new RenderFrameHost was committed, the
// RenderFrame corresponding to this host sent an IPC message to create a
// frame and it is delivered after this host is swapped out.
// Ignore such messages, as we know this RenderFrameHost is going away.
if (rfh_state_ != RenderFrameHostImpl::STATE_DEFAULT ||
frame_tree_node_->current_frame_host() != this)
return;
frame_tree_->AddFrame(frame_tree_node_, GetProcess()->GetID(), new_routing_id,
scope, frame_name, sandbox_flags,
frame_owner_properties);
}
void RenderFrameHostImpl::OnDetach() {
frame_tree_->RemoveFrame(frame_tree_node_);
}
void RenderFrameHostImpl::OnFrameFocused() {
frame_tree_->SetFocusedFrame(frame_tree_node_, GetSiteInstance());
}
void RenderFrameHostImpl::OnOpenURL(const FrameHostMsg_OpenURL_Params& params) {
if (params.is_history_navigation_in_new_child) {
DCHECK(SiteIsolationPolicy::UseSubframeNavigationEntries());
// Try to find a FrameNavigationEntry that matches this frame instead, based
// on the frame's unique name. If this can't be found, fall back to the
// default params using OpenURL below.
if (frame_tree_node_->navigator()->NavigateNewChildFrame(
this, params.frame_unique_name))
return;
}
OpenURL(params, GetSiteInstance());
}
void RenderFrameHostImpl::OnDocumentOnLoadCompleted(
FrameMsg_UILoadMetricsReportType::Value report_type,
base::TimeTicks ui_timestamp) {
if (report_type == FrameMsg_UILoadMetricsReportType::REPORT_LINK) {
UMA_HISTOGRAM_CUSTOM_TIMES("Navigation.UI_OnLoadComplete.Link",
base::TimeTicks::Now() - ui_timestamp,
base::TimeDelta::FromMilliseconds(10),
base::TimeDelta::FromMinutes(10), 100);
} else if (report_type == FrameMsg_UILoadMetricsReportType::REPORT_INTENT) {
UMA_HISTOGRAM_CUSTOM_TIMES("Navigation.UI_OnLoadComplete.Intent",
base::TimeTicks::Now() - ui_timestamp,
base::TimeDelta::FromMilliseconds(10),
base::TimeDelta::FromMinutes(10), 100);
}
// This message is only sent for top-level frames. TODO(avi): when frame tree
// mirroring works correctly, add a check here to enforce it.
delegate_->DocumentOnLoadCompleted(this);
}
void RenderFrameHostImpl::OnDidStartProvisionalLoad(
const GURL& url,
const base::TimeTicks& navigation_start) {
frame_tree_node_->navigator()->DidStartProvisionalLoad(this, url,
navigation_start);
}
void RenderFrameHostImpl::OnDidFailProvisionalLoadWithError(
const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params) {
if (!IsBrowserSideNavigationEnabled() && navigation_handle_) {
navigation_handle_->set_net_error_code(
static_cast<net::Error>(params.error_code));
}
frame_tree_node_->navigator()->DidFailProvisionalLoadWithError(this, params);
}
void RenderFrameHostImpl::OnDidFailLoadWithError(
const GURL& url,
int error_code,
const base::string16& error_description,
bool was_ignored_by_handler) {
GURL validated_url(url);
GetProcess()->FilterURL(false, &validated_url);
frame_tree_node_->navigator()->DidFailLoadWithError(
this, validated_url, error_code, error_description,
was_ignored_by_handler);
}
// Called when the renderer navigates. For every frame loaded, we'll get this
// notification containing parameters identifying the navigation.
//
// Subframes are identified by the page transition type. For subframes loaded
// as part of a wider page load, the page_id will be the same as for the top
// level frame. If the user explicitly requests a subframe navigation, we will
// get a new page_id because we need to create a new navigation entry for that
// action.
void RenderFrameHostImpl::OnDidCommitProvisionalLoad(const IPC::Message& msg) {
RenderProcessHost* process = GetProcess();
// Read the parameters out of the IPC message directly to avoid making another
// copy when we filter the URLs.
base::PickleIterator iter(msg);
FrameHostMsg_DidCommitProvisionalLoad_Params validated_params;
if (!IPC::ParamTraits<FrameHostMsg_DidCommitProvisionalLoad_Params>::
Read(&msg, &iter, &validated_params)) {
bad_message::ReceivedBadMessage(
process, bad_message::RFH_COMMIT_DESERIALIZATION_FAILED);
return;
}
TRACE_EVENT1("navigation", "RenderFrameHostImpl::OnDidCommitProvisionalLoad",
"url", validated_params.url.possibly_invalid_spec());
// Sanity-check the page transition for frame type.
DCHECK_EQ(ui::PageTransitionIsMainFrame(validated_params.transition),
!GetParent());
// If we're waiting for a cross-site beforeunload ack from this renderer and
// we receive a Navigate message from the main frame, then the renderer was
// navigating already and sent it before hearing the FrameMsg_Stop message.
// Treat this as an implicit beforeunload ack to allow the pending navigation
// to continue.
if (is_waiting_for_beforeunload_ack_ &&
unload_ack_is_for_navigation_ &&
!GetParent()) {
base::TimeTicks approx_renderer_start_time = send_before_unload_start_time_;
OnBeforeUnloadACK(true, approx_renderer_start_time, base::TimeTicks::Now());
}
// If we're waiting for an unload ack from this renderer and we receive a
// Navigate message, then the renderer was navigating before it received the
// unload request. It will either respond to the unload request soon or our
// timer will expire. Either way, we should ignore this message, because we
// have already committed to closing this renderer.
if (IsWaitingForUnloadACK())
return;
if (validated_params.report_type ==
FrameMsg_UILoadMetricsReportType::REPORT_LINK) {
UMA_HISTOGRAM_CUSTOM_TIMES(
"Navigation.UI_OnCommitProvisionalLoad.Link",
base::TimeTicks::Now() - validated_params.ui_timestamp,
base::TimeDelta::FromMilliseconds(10), base::TimeDelta::FromMinutes(10),
100);
} else if (validated_params.report_type ==
FrameMsg_UILoadMetricsReportType::REPORT_INTENT) {
UMA_HISTOGRAM_CUSTOM_TIMES(
"Navigation.UI_OnCommitProvisionalLoad.Intent",
base::TimeTicks::Now() - validated_params.ui_timestamp,
base::TimeDelta::FromMilliseconds(10), base::TimeDelta::FromMinutes(10),
100);
}
// Attempts to commit certain off-limits URL should be caught more strictly
// than our FilterURL checks below. If a renderer violates this policy, it
// should be killed.
if (!CanCommitURL(validated_params.url)) {
VLOG(1) << "Blocked URL " << validated_params.url.spec();
validated_params.url = GURL(url::kAboutBlankURL);
// Kills the process.
bad_message::ReceivedBadMessage(process,
bad_message::RFH_CAN_COMMIT_URL_BLOCKED);
}
// Without this check, an evil renderer can trick the browser into creating
// a navigation entry for a banned URL. If the user clicks the back button
// followed by the forward button (or clicks reload, or round-trips through
// session restore, etc), we'll think that the browser commanded the
// renderer to load the URL and grant the renderer the privileges to request
// the URL. To prevent this attack, we block the renderer from inserting
// banned URLs into the navigation controller in the first place.
process->FilterURL(false, &validated_params.url);
process->FilterURL(true, &validated_params.referrer.url);
for (std::vector<GURL>::iterator it(validated_params.redirects.begin());
it != validated_params.redirects.end(); ++it) {
process->FilterURL(false, &(*it));
}
process->FilterURL(true, &validated_params.searchable_form_url);
// Without this check, the renderer can trick the browser into using
// filenames it can't access in a future session restore.
if (!render_view_host_->CanAccessFilesOfPageState(
validated_params.page_state)) {
bad_message::ReceivedBadMessage(
GetProcess(), bad_message::RFH_CAN_ACCESS_FILES_OF_PAGE_STATE);
return;
}
// If the URL does not match what the NavigationHandle expects, treat the
// commit as a new navigation. This can happen if an ongoing slow
// same-process navigation is interrupted by a synchronous renderer-initiated
// navigation.
if (navigation_handle_ &&
navigation_handle_->GetURL() != validated_params.url) {
navigation_handle_.reset();
}
// Synchronous renderer-initiated navigations will send a
// DidCommitProvisionalLoad IPC without a prior DidStartProvisionalLoad
// message.
if (!navigation_handle_) {
navigation_handle_ =
NavigationHandleImpl::Create(validated_params.url, frame_tree_node_,
true, // is_synchronous
validated_params.is_srcdoc,
base::TimeTicks::Now());
}
accessibility_reset_count_ = 0;
frame_tree_node()->navigator()->DidNavigate(this, validated_params);
// For a top-level frame, there are potential security concerns associated
// with displaying graphics from a previously loaded page after the URL in
// the omnibar has been changed. It is unappealing to clear the page
// immediately, but if the renderer is taking a long time to issue any
// compositor output (possibly because of script deliberately creating this
// situation) then we clear it after a while anyway.
// See https://crbug.com/497588.
if (frame_tree_node_->IsMainFrame() && GetView() &&
!validated_params.was_within_same_page) {
RenderWidgetHostImpl::From(GetView()->GetRenderWidgetHost())
->StartNewContentRenderingTimeout();
}
// PlzNavigate
if (IsBrowserSideNavigationEnabled())
pending_commit_ = false;
}
void RenderFrameHostImpl::OnDidDropNavigation() {
// At the end of Navigate(), the FrameTreeNode's DidStartLoading is called to
// force the spinner to start, even if the renderer didn't yet begin the load.
// If it turns out that the renderer dropped the navigation, the spinner needs
// to be turned off.
frame_tree_node_->DidStopLoading();
navigation_handle_.reset();
}
void RenderFrameHostImpl::OnUpdateState(const PageState& state) {
// TODO(creis): Verify the state's ISN matches the last committed FNE.
// Without this check, the renderer can trick the browser into using
// filenames it can't access in a future session restore.
// TODO(creis): Move CanAccessFilesOfPageState to RenderFrameHostImpl.
if (!render_view_host_->CanAccessFilesOfPageState(state)) {
bad_message::ReceivedBadMessage(
GetProcess(), bad_message::RFH_CAN_ACCESS_FILES_OF_PAGE_STATE);
return;
}
delegate_->UpdateStateForFrame(this, state);
}
RenderWidgetHostImpl* RenderFrameHostImpl::GetRenderWidgetHost() {
return render_widget_host_;
}
RenderWidgetHostView* RenderFrameHostImpl::GetView() {
RenderFrameHostImpl* frame = this;
while (frame) {
if (frame->render_widget_host_)
return frame->render_widget_host_->GetView();
frame = static_cast<RenderFrameHostImpl*>(frame->GetParent());
}
NOTREACHED();
return nullptr;
}
GlobalFrameRoutingId RenderFrameHostImpl::GetGlobalFrameRoutingId() {
return GlobalFrameRoutingId(GetProcess()->GetID(), GetRoutingID());
}
int RenderFrameHostImpl::GetEnabledBindings() {
return render_view_host_->GetEnabledBindings();
}
void RenderFrameHostImpl::SetNavigationHandle(
scoped_ptr<NavigationHandleImpl> navigation_handle) {
navigation_handle_ = std::move(navigation_handle);
if (navigation_handle_)
navigation_handle_->set_render_frame_host(this);
}
scoped_ptr<NavigationHandleImpl>
RenderFrameHostImpl::PassNavigationHandleOwnership() {
DCHECK(!IsBrowserSideNavigationEnabled());
navigation_handle_->set_is_transferring(true);
return std::move(navigation_handle_);
}
void RenderFrameHostImpl::OnCrossSiteResponse(
const GlobalRequestID& global_request_id,
scoped_ptr<CrossSiteTransferringRequest> cross_site_transferring_request,
const std::vector<GURL>& transfer_url_chain,
const Referrer& referrer,
ui::PageTransition page_transition,
bool should_replace_current_entry) {
frame_tree_node_->render_manager()->OnCrossSiteResponse(
this, global_request_id, std::move(cross_site_transferring_request),
transfer_url_chain, referrer, page_transition,
should_replace_current_entry);
}
void RenderFrameHostImpl::SwapOut(
RenderFrameProxyHost* proxy,
bool is_loading) {
// The end of this event is in OnSwapOutACK when the RenderFrame has completed
// the operation and sends back an IPC message.
// The trace event may not end properly if the ACK times out. We expect this
// to be fixed when RenderViewHostImpl::OnSwapOut moves to RenderFrameHost.
TRACE_EVENT_ASYNC_BEGIN0("navigation", "RenderFrameHostImpl::SwapOut", this);
// If this RenderFrameHost is not in the default state, it must have already
// gone through this, therefore just return.
if (rfh_state_ != RenderFrameHostImpl::STATE_DEFAULT) {
NOTREACHED() << "RFH should be in default state when calling SwapOut.";
return;
}
swapout_event_monitor_timeout_->Start(
base::TimeDelta::FromMilliseconds(RenderViewHostImpl::kUnloadTimeoutMS));
// There may be no proxy if there are no active views in the process.
int proxy_routing_id = MSG_ROUTING_NONE;
FrameReplicationState replication_state;
if (proxy) {
set_render_frame_proxy_host(proxy);
proxy_routing_id = proxy->GetRoutingID();
replication_state = proxy->frame_tree_node()->current_replication_state();
}
if (IsRenderFrameLive()) {
Send(new FrameMsg_SwapOut(routing_id_, proxy_routing_id, is_loading,
replication_state));
}
// If this is the last active frame in the SiteInstance, the SetState call
// below will trigger the deletion of the SiteInstance's proxies.
SetState(RenderFrameHostImpl::STATE_PENDING_SWAP_OUT);
if (!GetParent())
delegate_->SwappedOut(this);
}
void RenderFrameHostImpl::OnBeforeUnloadACK(
bool proceed,
const base::TimeTicks& renderer_before_unload_start_time,
const base::TimeTicks& renderer_before_unload_end_time) {
TRACE_EVENT_ASYNC_END1("navigation", "RenderFrameHostImpl BeforeUnload", this,
"FrameTreeNode id",
frame_tree_node_->frame_tree_node_id());
DCHECK(!GetParent());
// If this renderer navigated while the beforeunload request was in flight, we
// may have cleared this state in OnDidCommitProvisionalLoad, in which case we
// can ignore this message.
// However renderer might also be swapped out but we still want to proceed
// with navigation, otherwise it would block future navigations. This can
// happen when pending cross-site navigation is canceled by a second one just
// before OnDidCommitProvisionalLoad while current RVH is waiting for commit
// but second navigation is started from the beginning.
if (!is_waiting_for_beforeunload_ack_) {
return;
}
DCHECK(!send_before_unload_start_time_.is_null());
// Sets a default value for before_unload_end_time so that the browser
// survives a hacked renderer.
base::TimeTicks before_unload_end_time = renderer_before_unload_end_time;
if (!renderer_before_unload_start_time.is_null() &&
!renderer_before_unload_end_time.is_null()) {
// When passing TimeTicks across process boundaries, we need to compensate
// for any skew between the processes. Here we are converting the
// renderer's notion of before_unload_end_time to TimeTicks in the browser
// process. See comments in inter_process_time_ticks_converter.h for more.
base::TimeTicks receive_before_unload_ack_time = base::TimeTicks::Now();
InterProcessTimeTicksConverter converter(
LocalTimeTicks::FromTimeTicks(send_before_unload_start_time_),
LocalTimeTicks::FromTimeTicks(receive_before_unload_ack_time),
RemoteTimeTicks::FromTimeTicks(renderer_before_unload_start_time),
RemoteTimeTicks::FromTimeTicks(renderer_before_unload_end_time));
LocalTimeTicks browser_before_unload_end_time =
converter.ToLocalTimeTicks(
RemoteTimeTicks::FromTimeTicks(renderer_before_unload_end_time));
before_unload_end_time = browser_before_unload_end_time.ToTimeTicks();
// Collect UMA on the inter-process skew.
bool is_skew_additive = false;
if (converter.IsSkewAdditiveForMetrics()) {
is_skew_additive = true;
base::TimeDelta skew = converter.GetSkewForMetrics();
if (skew >= base::TimeDelta()) {
UMA_HISTOGRAM_TIMES(
"InterProcessTimeTicks.BrowserBehind_RendererToBrowser", skew);
} else {
UMA_HISTOGRAM_TIMES(
"InterProcessTimeTicks.BrowserAhead_RendererToBrowser", -skew);
}
}
UMA_HISTOGRAM_BOOLEAN(
"InterProcessTimeTicks.IsSkewAdditive_RendererToBrowser",
is_skew_additive);
base::TimeDelta on_before_unload_overhead_time =
(receive_before_unload_ack_time - send_before_unload_start_time_) -
(renderer_before_unload_end_time - renderer_before_unload_start_time);
UMA_HISTOGRAM_TIMES("Navigation.OnBeforeUnloadOverheadTime",
on_before_unload_overhead_time);
frame_tree_node_->navigator()->LogBeforeUnloadTime(
renderer_before_unload_start_time, renderer_before_unload_end_time);
}
// Resets beforeunload waiting state.
is_waiting_for_beforeunload_ack_ = false;
render_view_host_->GetWidget()->decrement_in_flight_event_count();
render_view_host_->GetWidget()->StopHangMonitorTimeout();
send_before_unload_start_time_ = base::TimeTicks();
// PlzNavigate: if the ACK is for a navigation, send it to the Navigator to
// have the current navigation stop/proceed. Otherwise, send it to the
// RenderFrameHostManager which handles closing.
if (IsBrowserSideNavigationEnabled() && unload_ack_is_for_navigation_) {
// TODO(clamy): see if before_unload_end_time should be transmitted to the
// Navigator.
frame_tree_node_->navigator()->OnBeforeUnloadACK(
frame_tree_node_, proceed);
} else {
frame_tree_node_->render_manager()->OnBeforeUnloadACK(
unload_ack_is_for_navigation_, proceed,
before_unload_end_time);
}
// If canceled, notify the delegate to cancel its pending navigation entry.
if (!proceed)
render_view_host_->GetDelegate()->DidCancelLoading();
}
bool RenderFrameHostImpl::IsWaitingForUnloadACK() const {
return render_view_host_->is_waiting_for_close_ack_ ||
rfh_state_ == STATE_PENDING_SWAP_OUT;
}
void RenderFrameHostImpl::OnSwapOutACK() {
OnSwappedOut();
}
void RenderFrameHostImpl::OnRenderProcessGone(int status, int exit_code) {
if (frame_tree_node_->IsMainFrame()) {
// Keep the termination status so we can get at it later when we
// need to know why it died.
render_view_host_->render_view_termination_status_ =
static_cast<base::TerminationStatus>(status);
}
// Reset frame tree state associated with this process. This must happen
// before RenderViewTerminated because observers expect the subframes of any
// affected frames to be cleared first.
// Note: When a RenderFrameHost is swapped out there is a different one
// which is the current host. In this case, the FrameTreeNode state must
// not be reset.
if (!is_swapped_out())
frame_tree_node_->ResetForNewProcess();
// Reset state for the current RenderFrameHost once the FrameTreeNode has been
// reset.
SetRenderFrameCreated(false);
InvalidateMojoConnection();
// Execute any pending AX tree snapshot callbacks with an empty response,
// since we're never going to get a response from this renderer.
for (const auto& iter : ax_tree_snapshot_callbacks_)
iter.second.Run(ui::AXTreeUpdate());
ax_tree_snapshot_callbacks_.clear();
// Note: don't add any more code at this point in the function because
// |this| may be deleted. Any additional cleanup should happen before
// the last block of code here.
}
void RenderFrameHostImpl::OnSwappedOut() {
// Ignore spurious swap out ack.
if (rfh_state_ != STATE_PENDING_SWAP_OUT)
return;
TRACE_EVENT_ASYNC_END0("navigation", "RenderFrameHostImpl::SwapOut", this);
swapout_event_monitor_timeout_->Stop();
ClearAllWebUI();
// If this is a main frame RFH that's about to be deleted, update its RVH's
// swapped-out state here, since SetState won't be called once this RFH is
// deleted below. https://crbug.com/505887
if (frame_tree_node_->IsMainFrame() &&
frame_tree_node_->render_manager()->IsPendingDeletion(this)) {
render_view_host_->set_is_active(false);
render_view_host_->set_is_swapped_out(true);
}
if (frame_tree_node_->render_manager()->DeleteFromPendingList(this)) {
// We are now deleted.
return;
}
// If this RFH wasn't pending deletion, then it is now swapped out.
SetState(RenderFrameHostImpl::STATE_SWAPPED_OUT);
}
void RenderFrameHostImpl::OnContextMenu(const ContextMenuParams& params) {
// Validate the URLs in |params|. If the renderer can't request the URLs
// directly, don't show them in the context menu.
ContextMenuParams validated_params(params);
RenderProcessHost* process = GetProcess();
// We don't validate |unfiltered_link_url| so that this field can be used
// when users want to copy the original link URL.
process->FilterURL(true, &validated_params.link_url);
process->FilterURL(true, &validated_params.src_url);
process->FilterURL(false, &validated_params.page_url);
process->FilterURL(true, &validated_params.frame_url);
// It is necessary to transform the coordinates to account for nested
// RenderWidgetHosts, such as with out-of-process iframes.
gfx::Point original_point(validated_params.x, validated_params.y);
gfx::Point transformed_point =
static_cast<RenderWidgetHostViewBase*>(GetView())
->TransformPointToRootCoordSpace(original_point);
validated_params.x = transformed_point.x();
validated_params.y = transformed_point.y();
delegate_->ShowContextMenu(this, validated_params);
}
void RenderFrameHostImpl::OnJavaScriptExecuteResponse(
int id, const base::ListValue& result) {
const base::Value* result_value;
if (!result.Get(0, &result_value)) {
// Programming error or rogue renderer.
NOTREACHED() << "Got bad arguments for OnJavaScriptExecuteResponse";
return;
}
std::map<int, JavaScriptResultCallback>::iterator it =
javascript_callbacks_.find(id);
if (it != javascript_callbacks_.end()) {
it->second.Run(result_value);
javascript_callbacks_.erase(it);
} else {
NOTREACHED() << "Received script response for unknown request";
}
}
void RenderFrameHostImpl::OnVisualStateResponse(uint64_t id) {
auto it = visual_state_callbacks_.find(id);
if (it != visual_state_callbacks_.end()) {
it->second.Run(true);
visual_state_callbacks_.erase(it);
} else {
NOTREACHED() << "Received script response for unknown request";
}
}
void RenderFrameHostImpl::OnRunJavaScriptMessage(
const base::string16& message,
const base::string16& default_prompt,
const GURL& frame_url,
JavaScriptMessageType type,
IPC::Message* reply_msg) {
// While a JS message dialog is showing, tabs in the same process shouldn't
// process input events.
GetProcess()->SetIgnoreInputEvents(true);
render_view_host_->GetWidget()->StopHangMonitorTimeout();
delegate_->RunJavaScriptMessage(this, message, default_prompt,
frame_url, type, reply_msg);
}
void RenderFrameHostImpl::OnRunBeforeUnloadConfirm(
const GURL& frame_url,
const base::string16& message,
bool is_reload,
IPC::Message* reply_msg) {
// While a JS beforeunload dialog is showing, tabs in the same process
// shouldn't process input events.
GetProcess()->SetIgnoreInputEvents(true);
render_view_host_->GetWidget()->StopHangMonitorTimeout();
delegate_->RunBeforeUnloadConfirm(this, message, is_reload, reply_msg);
}
void RenderFrameHostImpl::OnTextSurroundingSelectionResponse(
const base::string16& content,
uint32_t start_offset,
uint32_t end_offset) {
render_view_host_->OnTextSurroundingSelectionResponse(
content, start_offset, end_offset);
}
void RenderFrameHostImpl::OnDidAccessInitialDocument() {
delegate_->DidAccessInitialDocument();
}
void RenderFrameHostImpl::OnDidChangeOpener(int32_t opener_routing_id) {
frame_tree_node_->render_manager()->DidChangeOpener(opener_routing_id,
GetSiteInstance());
}
void RenderFrameHostImpl::OnDidChangeName(const std::string& name) {
std::string old_name = frame_tree_node()->frame_name();
frame_tree_node()->SetFrameName(name);
if (old_name.empty() && !name.empty())
frame_tree_node_->render_manager()->CreateProxiesForNewNamedFrame();
delegate_->DidChangeName(this, name);
}
void RenderFrameHostImpl::OnEnforceStrictMixedContentChecking() {
frame_tree_node()->SetEnforceStrictMixedContentChecking(true);
}
void RenderFrameHostImpl::OnDidAssignPageId(int32_t page_id) {
// Update the RVH's current page ID so that future IPCs from the renderer
// correspond to the new page.
render_view_host_->page_id_ = page_id;
}
FrameTreeNode* RenderFrameHostImpl::FindAndVerifyChild(
int32_t child_frame_routing_id,
bad_message::BadMessageReason reason) {
FrameTreeNode* child = frame_tree_node()->frame_tree()->FindByRoutingID(
GetProcess()->GetID(), child_frame_routing_id);
// A race can result in |child| to be nullptr. Avoid killing the renderer in
// that case.
if (child && child->parent() != frame_tree_node()) {
bad_message::ReceivedBadMessage(GetProcess(), reason);
return nullptr;
}
return child;
}
void RenderFrameHostImpl::OnDidChangeSandboxFlags(
int32_t frame_routing_id,
blink::WebSandboxFlags flags) {
// Ensure that a frame can only update sandbox flags for its immediate
// children. If this is not the case, the renderer is considered malicious
// and is killed.
FrameTreeNode* child = FindAndVerifyChild(
frame_routing_id, bad_message::RFH_SANDBOX_FLAGS);
if (!child)
return;
child->SetPendingSandboxFlags(flags);
// Notify the RenderFrame if it lives in a different process from its
// parent. The frame's proxies in other processes also need to learn about
// the updated sandbox flags, but these notifications are sent later in
// RenderFrameHostManager::CommitPendingSandboxFlags(), when the frame
// navigates and the new sandbox flags take effect.
RenderFrameHost* child_rfh = child->current_frame_host();
if (child_rfh->GetSiteInstance() != GetSiteInstance()) {
child_rfh->Send(
new FrameMsg_DidUpdateSandboxFlags(child_rfh->GetRoutingID(), flags));
}
}
void RenderFrameHostImpl::OnDidChangeFrameOwnerProperties(
int32_t frame_routing_id,
const blink::WebFrameOwnerProperties& frame_owner_properties) {
FrameTreeNode* child = FindAndVerifyChild(
frame_routing_id, bad_message::RFH_OWNER_PROPERTY);
if (!child)
return;
child->set_frame_owner_properties(frame_owner_properties);
// Notify the RenderFrame if it lives in a different process from its parent.
// These properties only affect the RenderFrame and live in its parent
// (HTMLFrameOwnerElement). Therefore, we do not need to notify this frame's
// proxies.
RenderFrameHost* child_rfh = child->current_frame_host();
if (child_rfh->GetSiteInstance() != GetSiteInstance()) {
child_rfh->Send(new FrameMsg_SetFrameOwnerProperties(
child_rfh->GetRoutingID(), frame_owner_properties));
}
}
void RenderFrameHostImpl::OnUpdateTitle(
const base::string16& title,
blink::WebTextDirection title_direction) {
// This message should only be sent for top-level frames.
if (frame_tree_node_->parent())
return;
if (title.length() > kMaxTitleChars) {
NOTREACHED() << "Renderer sent too many characters in title.";
return;
}
delegate_->UpdateTitle(this, render_view_host_->page_id_, title,
WebTextDirectionToChromeTextDirection(
title_direction));
}
void RenderFrameHostImpl::OnUpdateEncoding(const std::string& encoding_name) {
// This message is only sent for top-level frames. TODO(avi): when frame tree
// mirroring works correctly, add a check here to enforce it.
delegate_->UpdateEncoding(this, encoding_name);
}
void RenderFrameHostImpl::OnBeginNavigation(
const CommonNavigationParams& common_params,
const BeginNavigationParams& begin_params,
scoped_refptr<ResourceRequestBody> body) {
CHECK(IsBrowserSideNavigationEnabled());
CommonNavigationParams validated_params = common_params;
GetProcess()->FilterURL(false, &validated_params.url);
frame_tree_node()->navigator()->OnBeginNavigation(
frame_tree_node(), validated_params, begin_params, body);
}
void RenderFrameHostImpl::OnDispatchLoad() {
CHECK(SiteIsolationPolicy::AreCrossProcessFramesPossible());
// Only frames with an out-of-process parent frame should be sending this
// message.
RenderFrameProxyHost* proxy =
frame_tree_node()->render_manager()->GetProxyToParent();
if (!proxy) {
bad_message::ReceivedBadMessage(GetProcess(),
bad_message::RFH_NO_PROXY_TO_PARENT);
return;
}
proxy->Send(new FrameMsg_DispatchLoad(proxy->GetRoutingID()));
}
RenderWidgetHostViewBase* RenderFrameHostImpl::GetViewForAccessibility() {
return static_cast<RenderWidgetHostViewBase*>(
frame_tree_node_->IsMainFrame()
? render_view_host_->GetWidget()->GetView()
: frame_tree_node_->frame_tree()
->GetMainFrame()
->render_view_host_->GetWidget()
->GetView());
}
void RenderFrameHostImpl::OnAccessibilityEvents(
const std::vector<AccessibilityHostMsg_EventParams>& params,
int reset_token) {
// Don't process this IPC if either we're waiting on a reset and this
// IPC doesn't have the matching token ID, or if we're not waiting on a
// reset but this message includes a reset token.
if (accessibility_reset_token_ != reset_token) {
Send(new AccessibilityMsg_Events_ACK(routing_id_));
return;
}
accessibility_reset_token_ = 0;
RenderWidgetHostViewBase* view = GetViewForAccessibility();
AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
if ((accessibility_mode != AccessibilityModeOff) && view &&
RenderFrameHostImpl::IsRFHStateActive(rfh_state())) {
if (accessibility_mode & AccessibilityModeFlagPlatform)
GetOrCreateBrowserAccessibilityManager();
std::vector<AXEventNotificationDetails> details;
details.reserve(params.size());
for (size_t i = 0; i < params.size(); ++i) {
const AccessibilityHostMsg_EventParams& param = params[i];
AXEventNotificationDetails detail;
detail.event_type = param.event_type;
detail.id = param.id;
detail.ax_tree_id = GetAXTreeID();
if (param.update.has_tree_data) {
detail.update.has_tree_data = true;
AXContentTreeDataToAXTreeData(param.update.tree_data,
&detail.update.tree_data);
}
detail.update.node_id_to_clear = param.update.node_id_to_clear;
detail.update.nodes.resize(param.update.nodes.size());
for (size_t i = 0; i < param.update.nodes.size(); ++i) {
AXContentNodeDataToAXNodeData(param.update.nodes[i],
&detail.update.nodes[i]);
}
details.push_back(detail);
}
if (accessibility_mode & AccessibilityModeFlagPlatform) {
if (browser_accessibility_manager_)
browser_accessibility_manager_->OnAccessibilityEvents(details);
}
// Send the updates to the automation extension API.
delegate_->AccessibilityEventReceived(details);
// For testing only.
if (!accessibility_testing_callback_.is_null()) {
for (size_t i = 0; i < details.size(); i++) {
const AXEventNotificationDetails& detail = details[i];
if (static_cast<int>(detail.event_type) < 0)
continue;
if (!ax_tree_for_testing_) {
if (browser_accessibility_manager_) {
ax_tree_for_testing_.reset(new ui::AXTree(
browser_accessibility_manager_->SnapshotAXTreeForTesting()));
} else {
ax_tree_for_testing_.reset(new ui::AXTree());
CHECK(ax_tree_for_testing_->Unserialize(detail.update))
<< ax_tree_for_testing_->error();
}
} else {
CHECK(ax_tree_for_testing_->Unserialize(detail.update))
<< ax_tree_for_testing_->error();
}
accessibility_testing_callback_.Run(detail.event_type, detail.id);
}
}
}
// Always send an ACK or the renderer can be in a bad state.
Send(new AccessibilityMsg_Events_ACK(routing_id_));
}
void RenderFrameHostImpl::OnAccessibilityLocationChanges(
const std::vector<AccessibilityHostMsg_LocationChangeParams>& params) {
if (accessibility_reset_token_)
return;
RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
render_view_host_->GetWidget()->GetView());
if (view && RenderFrameHostImpl::IsRFHStateActive(rfh_state())) {
AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
if (accessibility_mode & AccessibilityModeFlagPlatform) {
BrowserAccessibilityManager* manager =
GetOrCreateBrowserAccessibilityManager();
if (manager)
manager->OnLocationChanges(params);
}
// TODO(aboxhall): send location change events to web contents observers too
}
}
void RenderFrameHostImpl::OnAccessibilityFindInPageResult(
const AccessibilityHostMsg_FindInPageResultParams& params) {
AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
if (accessibility_mode & AccessibilityModeFlagPlatform) {
BrowserAccessibilityManager* manager =
GetOrCreateBrowserAccessibilityManager();
if (manager) {
manager->OnFindInPageResult(
params.request_id, params.match_index, params.start_id,
params.start_offset, params.end_id, params.end_offset);
}
}
}
void RenderFrameHostImpl::OnAccessibilitySnapshotResponse(
int callback_id,
const AXContentTreeUpdate& snapshot) {
const auto& it = ax_tree_snapshot_callbacks_.find(callback_id);
if (it != ax_tree_snapshot_callbacks_.end()) {
ui::AXTreeUpdate dst_snapshot;
dst_snapshot.nodes.resize(snapshot.nodes.size());
for (size_t i = 0; i < snapshot.nodes.size(); ++i) {
AXContentNodeDataToAXNodeData(snapshot.nodes[i],
&dst_snapshot.nodes[i]);
}
if (snapshot.has_tree_data) {
AXContentTreeDataToAXTreeData(snapshot.tree_data,
&dst_snapshot.tree_data);
dst_snapshot.has_tree_data = true;
}
it->second.Run(dst_snapshot);
ax_tree_snapshot_callbacks_.erase(it);
} else {
NOTREACHED() << "Received AX tree snapshot response for unknown id";
}
}
void RenderFrameHostImpl::OnToggleFullscreen(bool enter_fullscreen) {
if (enter_fullscreen)
delegate_->EnterFullscreenMode(GetLastCommittedURL().GetOrigin());
else
delegate_->ExitFullscreenMode(/* will_cause_resize */ true);
// The previous call might change the fullscreen state. We need to make sure
// the renderer is aware of that, which is done via the resize message.
render_view_host_->GetWidget()->WasResized();
}
void RenderFrameHostImpl::OnDidStartLoading(bool to_different_document) {
// Any main frame load to a new document should reset the load since it will
// replace the current page and any frames.
if (to_different_document && !GetParent())
is_loading_ = false;
// This method should never be called when the frame is loading.
// Unfortunately, it can happen if a history navigation happens during a
// BeforeUnload or Unload event.
// TODO(fdegans): Change this to a DCHECK after LoadEventProgress has been
// refactored in Blink. See crbug.com/466089
if (is_loading_) {
LOG(WARNING) << "OnDidStartLoading was called twice.";
return;
}
frame_tree_node_->DidStartLoading(to_different_document);
is_loading_ = true;
}
void RenderFrameHostImpl::OnDidStopLoading() {
// This method should never be called when the frame is not loading.
// Unfortunately, it can happen if a history navigation happens during a
// BeforeUnload or Unload event.
// TODO(fdegans): Change this to a DCHECK after LoadEventProgress has been
// refactored in Blink. See crbug.com/466089
if (!is_loading_) {
LOG(WARNING) << "OnDidStopLoading was called twice.";
return;
}
is_loading_ = false;
frame_tree_node_->DidStopLoading();
navigation_handle_.reset();
}
void RenderFrameHostImpl::OnDidChangeLoadProgress(double load_progress) {
frame_tree_node_->DidChangeLoadProgress(load_progress);
}
void RenderFrameHostImpl::OnSerializeAsMHTMLResponse(
int job_id,
bool success,
const std::set<std::string>& digests_of_uris_of_serialized_resources) {
MHTMLGenerationManager::GetInstance()->OnSerializeAsMHTMLResponse(
this, job_id, success, digests_of_uris_of_serialized_resources);
}
#if defined(OS_MACOSX) || defined(OS_ANDROID)
void RenderFrameHostImpl::OnShowPopup(
const FrameHostMsg_ShowPopup_Params& params) {
RenderViewHostDelegateView* view =
render_view_host_->delegate_->GetDelegateView();
if (view) {
view->ShowPopupMenu(this,
params.bounds,
params.item_height,
params.item_font_size,
params.selected_item,
params.popup_items,
params.right_aligned,
params.allow_multiple_selection);
}
}
void RenderFrameHostImpl::OnHidePopup() {
RenderViewHostDelegateView* view =
render_view_host_->delegate_->GetDelegateView();
if (view)
view->HidePopupMenu();
}
#endif
void RenderFrameHostImpl::RegisterMojoServices() {
GeolocationServiceContext* geolocation_service_context =
delegate_ ? delegate_->GetGeolocationServiceContext() : NULL;
if (geolocation_service_context) {
// TODO(creis): Bind process ID here so that GeolocationServiceImpl
// can perform permissions checks once site isolation is complete.
// crbug.com/426384
GetServiceRegistry()->AddService<GeolocationService>(
base::Bind(&GeolocationServiceContext::CreateService,
base::Unretained(geolocation_service_context),
base::Bind(&RenderFrameHostImpl::DidUseGeolocationPermission,
base::Unretained(this))));
}
WakeLockServiceContext* wake_lock_service_context =
delegate_ ? delegate_->GetWakeLockServiceContext() : nullptr;
if (wake_lock_service_context) {
// WakeLockServiceContext is owned by WebContentsImpl so it will outlive
// this RenderFrameHostImpl, hence a raw pointer can be bound to service
// factory callback.
GetServiceRegistry()->AddService<WakeLockService>(
base::Bind(&WakeLockServiceContext::CreateService,
base::Unretained(wake_lock_service_context),
GetProcess()->GetID(), GetRoutingID()));
}
if (!permission_service_context_)
permission_service_context_.reset(new PermissionServiceContext(this));
GetServiceRegistry()->AddService<PermissionService>(
base::Bind(&PermissionServiceContext::CreateService,
base::Unretained(permission_service_context_.get())));
GetServiceRegistry()->AddService<presentation::PresentationService>(
base::Bind(&PresentationServiceImpl::CreateMojoService,
base::Unretained(this)));
if (!frame_mojo_shell_)
frame_mojo_shell_.reset(new FrameMojoShell(this));
GetServiceRegistry()->AddService<mojo::shell::mojom::Shell>(base::Bind(
&FrameMojoShell::BindRequest, base::Unretained(frame_mojo_shell_.get())));
#if defined(ENABLE_WEBVR)
const base::CommandLine& browser_command_line =
*base::CommandLine::ForCurrentProcess();
if (browser_command_line.HasSwitch(switches::kEnableWebVR)) {
GetServiceRegistry()->AddService<VRService>(
base::Bind(&VRDeviceManager::BindRequest));
}
#endif
GetContentClient()->browser()->RegisterRenderFrameMojoServices(
GetServiceRegistry(), this);
}
void RenderFrameHostImpl::SetState(RenderFrameHostImplState rfh_state) {
// Only main frames should be swapped out and retained inside a proxy host.
if (rfh_state == STATE_SWAPPED_OUT)
CHECK(!GetParent());
// We update the number of RenderFrameHosts in a SiteInstance when the swapped
// out status of a RenderFrameHost gets flipped to/from active.
if (!IsRFHStateActive(rfh_state_) && IsRFHStateActive(rfh_state))
GetSiteInstance()->IncrementActiveFrameCount();
else if (IsRFHStateActive(rfh_state_) && !IsRFHStateActive(rfh_state))
GetSiteInstance()->DecrementActiveFrameCount();
// The active and swapped out state of the RVH is determined by its main
// frame, since subframes should have their own widgets.
if (frame_tree_node_->IsMainFrame()) {
render_view_host_->set_is_active(IsRFHStateActive(rfh_state));
render_view_host_->set_is_swapped_out(rfh_state == STATE_SWAPPED_OUT);
}
// Whenever we change the RFH state to and from active or swapped out state,
// we should not be waiting for beforeunload or close acks. We clear them
// here to be safe, since they can cause navigations to be ignored in
// OnDidCommitProvisionalLoad.
// TODO(creis): Move is_waiting_for_beforeunload_ack_ into the state machine.
if (rfh_state == STATE_DEFAULT ||
rfh_state == STATE_SWAPPED_OUT ||
rfh_state_ == STATE_DEFAULT ||
rfh_state_ == STATE_SWAPPED_OUT) {
if (is_waiting_for_beforeunload_ack_) {
is_waiting_for_beforeunload_ack_ = false;
render_view_host_->GetWidget()->decrement_in_flight_event_count();
render_view_host_->GetWidget()->StopHangMonitorTimeout();
}
send_before_unload_start_time_ = base::TimeTicks();
render_view_host_->is_waiting_for_close_ack_ = false;
}
rfh_state_ = rfh_state;
}
bool RenderFrameHostImpl::CanCommitURL(const GURL& url) {
// TODO(creis): We should also check for WebUI pages here. Also, when the
// out-of-process iframes implementation is ready, we should check for
// cross-site URLs that are not allowed to commit in this process.
// Give the client a chance to disallow URLs from committing.
return GetContentClient()->browser()->CanCommitURL(GetProcess(), url);
}
void RenderFrameHostImpl::Navigate(
const CommonNavigationParams& common_params,
const StartNavigationParams& start_params,
const RequestNavigationParams& request_params) {
TRACE_EVENT0("navigation", "RenderFrameHostImpl::Navigate");
DCHECK(!IsBrowserSideNavigationEnabled());
UpdatePermissionsForNavigation(common_params, request_params);
// Only send the message if we aren't suspended at the start of a cross-site
// request.
if (navigations_suspended_) {
// This may replace an existing set of params, if this is a pending RFH that
// is navigated twice consecutively.
suspended_nav_params_.reset(
new NavigationParams(common_params, start_params, request_params));
} else {
// Get back to a clean state, in case we start a new navigation without
// completing a RFH swap or unload handler.
SetState(RenderFrameHostImpl::STATE_DEFAULT);
SendNavigateMessage(common_params, start_params, request_params);
}
// Force the throbber to start. This is done because Blink's "started loading"
// message will be received asynchronously from the UI of the browser. But the
// throbber needs to be kept in sync with what's happening in the UI. For
// example, the throbber will start immediately when the user navigates even
// if the renderer is delayed. There is also an issue with the throbber
// starting because the WebUI (which controls whether the favicon is
// displayed) happens synchronously. If the start loading messages was
// asynchronous, then the default favicon would flash in.
//
// Blink doesn't send throb notifications for JavaScript URLs, so it is not
// done here either.
if (!common_params.url.SchemeIs(url::kJavaScriptScheme))
frame_tree_node_->DidStartLoading(true);
}
void RenderFrameHostImpl::NavigateToInterstitialURL(const GURL& data_url) {
DCHECK(data_url.SchemeIs(url::kDataScheme));
CommonNavigationParams common_params(
data_url, Referrer(), ui::PAGE_TRANSITION_LINK,
FrameMsg_Navigate_Type::NORMAL, false, false, base::TimeTicks::Now(),
FrameMsg_UILoadMetricsReportType::NO_REPORT, GURL(), GURL(), LOFI_OFF,
base::TimeTicks::Now());
if (IsBrowserSideNavigationEnabled()) {
CommitNavigation(nullptr, nullptr, common_params,
RequestNavigationParams());
} else {
Navigate(common_params, StartNavigationParams(), RequestNavigationParams());
}
}
void RenderFrameHostImpl::OpenURL(const FrameHostMsg_OpenURL_Params& params,
SiteInstance* source_site_instance) {
GURL validated_url(params.url);
GetProcess()->FilterURL(false, &validated_url);
TRACE_EVENT1("navigation", "RenderFrameHostImpl::OpenURL", "url",
validated_url.possibly_invalid_spec());
frame_tree_node_->navigator()->RequestOpenURL(
this, validated_url, source_site_instance, params.referrer,
params.disposition, params.should_replace_current_entry,
params.user_gesture);
}
void RenderFrameHostImpl::Stop() {
Send(new FrameMsg_Stop(routing_id_));
}
void RenderFrameHostImpl::DispatchBeforeUnload(bool for_navigation) {
// TODO(creis): Support beforeunload on subframes. For now just pretend that
// the handler ran and allowed the navigation to proceed.
if (!ShouldDispatchBeforeUnload()) {
DCHECK(!(IsBrowserSideNavigationEnabled() && for_navigation));
frame_tree_node_->render_manager()->OnBeforeUnloadACK(
for_navigation, true, base::TimeTicks::Now());
return;
}
TRACE_EVENT_ASYNC_BEGIN1("navigation", "RenderFrameHostImpl BeforeUnload",
this, "&RenderFrameHostImpl", (void*)this);
// This may be called more than once (if the user clicks the tab close button
// several times, or if she clicks the tab close button then the browser close
// button), and we only send the message once.
if (is_waiting_for_beforeunload_ack_) {
// Some of our close messages could be for the tab, others for cross-site
// transitions. We always want to think it's for closing the tab if any
// of the messages were, since otherwise it might be impossible to close
// (if there was a cross-site "close" request pending when the user clicked
// the close button). We want to keep the "for cross site" flag only if
// both the old and the new ones are also for cross site.
unload_ack_is_for_navigation_ =
unload_ack_is_for_navigation_ && for_navigation;
} else {
// Start the hang monitor in case the renderer hangs in the beforeunload
// handler.
is_waiting_for_beforeunload_ack_ = true;
unload_ack_is_for_navigation_ = for_navigation;
// Increment the in-flight event count, to ensure that input events won't
// cancel the timeout timer.
render_view_host_->GetWidget()->increment_in_flight_event_count();
render_view_host_->GetWidget()->StartHangMonitorTimeout(
TimeDelta::FromMilliseconds(RenderViewHostImpl::kUnloadTimeoutMS));
send_before_unload_start_time_ = base::TimeTicks::Now();
Send(new FrameMsg_BeforeUnload(routing_id_));
}
}
bool RenderFrameHostImpl::ShouldDispatchBeforeUnload() {
// TODO(creis): Support beforeunload on subframes.
return !GetParent() && IsRenderFrameLive();
}
void RenderFrameHostImpl::UpdateOpener() {
// This frame (the frame whose opener is being updated) might not have had
// proxies for the new opener chain in its SiteInstance. Make sure they
// exist.
if (frame_tree_node_->opener()) {
frame_tree_node_->opener()->render_manager()->CreateOpenerProxies(
GetSiteInstance(), frame_tree_node_);
}
int opener_routing_id =
frame_tree_node_->render_manager()->GetOpenerRoutingID(GetSiteInstance());
Send(new FrameMsg_UpdateOpener(GetRoutingID(), opener_routing_id));
}
void RenderFrameHostImpl::SetFocusedFrame() {
Send(new FrameMsg_SetFocusedFrame(routing_id_));
}
void RenderFrameHostImpl::ExtendSelectionAndDelete(size_t before,
size_t after) {
Send(new InputMsg_ExtendSelectionAndDelete(routing_id_, before, after));
}
void RenderFrameHostImpl::JavaScriptDialogClosed(
IPC::Message* reply_msg,
bool success,
const base::string16& user_input,
bool dialog_was_suppressed) {
GetProcess()->SetIgnoreInputEvents(false);
bool is_waiting = is_waiting_for_beforeunload_ack_ || IsWaitingForUnloadACK();
// If we are executing as part of (before)unload event handling, we don't
// want to use the regular hung_renderer_delay_ms_ if the user has agreed to
// leave the current page. In this case, use the regular timeout value used
// during the (before)unload handling.
if (is_waiting) {
render_view_host_->GetWidget()->StartHangMonitorTimeout(
success
? TimeDelta::FromMilliseconds(RenderViewHostImpl::kUnloadTimeoutMS)
: render_view_host_->GetWidget()->hung_renderer_delay());
}
FrameHostMsg_RunJavaScriptMessage::WriteReplyParams(reply_msg,
success, user_input);
Send(reply_msg);
// If we are waiting for an unload or beforeunload ack and the user has
// suppressed messages, kill the tab immediately; a page that's spamming
// alerts in onbeforeunload is presumably malicious, so there's no point in
// continuing to run its script and dragging out the process.
// This must be done after sending the reply since RenderView can't close
// correctly while waiting for a response.
if (is_waiting && dialog_was_suppressed) {
render_view_host_->GetWidget()->delegate()->RendererUnresponsive(
render_view_host_->GetWidget());
}
}
// PlzNavigate
void RenderFrameHostImpl::CommitNavigation(
ResourceResponse* response,
scoped_ptr<StreamHandle> body,
const CommonNavigationParams& common_params,
const RequestNavigationParams& request_params) {
DCHECK((response && body.get()) ||
!ShouldMakeNetworkRequestForURL(common_params.url));
UpdatePermissionsForNavigation(common_params, request_params);
// Get back to a clean state, in case we start a new navigation without
// completing a RFH swap or unload handler.
SetState(RenderFrameHostImpl::STATE_DEFAULT);
const GURL body_url = body.get() ? body->GetURL() : GURL();
const ResourceResponseHead head = response ?
response->head : ResourceResponseHead();
Send(new FrameMsg_CommitNavigation(routing_id_, head, body_url, common_params,
request_params));
// TODO(clamy): Release the stream handle once the renderer has finished
// reading it.
stream_handle_ = std::move(body);
// When navigating to a Javascript url, no commit is expected from the
// RenderFrameHost, nor should the throbber start.
if (!common_params.url.SchemeIs(url::kJavaScriptScheme)) {
pending_commit_ = true;
is_loading_ = true;
}
frame_tree_node_->ResetNavigationRequest(true);
}
void RenderFrameHostImpl::FailedNavigation(
const CommonNavigationParams& common_params,
const RequestNavigationParams& request_params,
bool has_stale_copy_in_cache,
int error_code) {
// Get back to a clean state, in case a new navigation started without
// completing a RFH swap or unload handler.
SetState(RenderFrameHostImpl::STATE_DEFAULT);
Send(new FrameMsg_FailedNavigation(routing_id_, common_params, request_params,
has_stale_copy_in_cache, error_code));
// An error page is expected to commit, hence why is_loading_ is set to true.
is_loading_ = true;
frame_tree_node_->ResetNavigationRequest(true);
}
void RenderFrameHostImpl::SetUpMojoIfNeeded() {
if (service_registry_.get())
return;
service_registry_.reset(new ServiceRegistryImpl());
if (!GetProcess()->GetServiceRegistry())
return;
RegisterMojoServices();
RenderFrameSetupPtr setup;
GetProcess()->GetServiceRegistry()->ConnectToRemoteService(
mojo::GetProxy(&setup));
mojo::shell::mojom::InterfaceProviderPtr exposed_services;
service_registry_->Bind(GetProxy(&exposed_services));
mojo::shell::mojom::InterfaceProviderPtr services;
setup->ExchangeInterfaceProviders(routing_id_, GetProxy(&services),
std::move(exposed_services));
service_registry_->BindRemoteServiceProvider(std::move(services));
#if defined(OS_ANDROID)
service_registry_android_.reset(
new ServiceRegistryAndroid(service_registry_.get()));
ServiceRegistrarAndroid::RegisterFrameHostServices(
service_registry_android_.get());
#endif
}
void RenderFrameHostImpl::InvalidateMojoConnection() {
#if defined(OS_ANDROID)
// The Android-specific service registry has a reference to
// |service_registry_| and thus must be torn down first.
service_registry_android_.reset();
#endif
service_registry_.reset();
// Disconnect with ImageDownloader Mojo service in RenderFrame.
mojo_image_downloader_.reset();
}
bool RenderFrameHostImpl::IsFocused() {
// TODO(mlamouri,kenrb): call GetRenderWidgetHost() directly when it stops
// returning nullptr in some cases. See https://crbug.com/455245.
return RenderWidgetHostImpl::From(
GetView()->GetRenderWidgetHost())->is_focused() &&
frame_tree_->GetFocusedFrame() &&
(frame_tree_->GetFocusedFrame() == frame_tree_node() ||
frame_tree_->GetFocusedFrame()->IsDescendantOf(frame_tree_node()));
}
bool RenderFrameHostImpl::UpdatePendingWebUI(const GURL& dest_url,
int entry_bindings) {
WebUI::TypeID new_web_ui_type =
WebUIControllerFactoryRegistry::GetInstance()->GetWebUIType(
GetSiteInstance()->GetBrowserContext(), dest_url);
// If the required WebUI matches the pending WebUI or if it matches the
// to-be-reused active WebUI, then leave everything as is.
if (new_web_ui_type == pending_web_ui_type_ ||
(should_reuse_web_ui_ && new_web_ui_type == web_ui_type_)) {
return false;
}
// Reset the pending WebUI as from this point it will certainly not be reused.
ClearPendingWebUI();
// If this navigation is not to a WebUI, skip directly to bindings work.
if (new_web_ui_type != WebUI::kNoWebUI) {
if (new_web_ui_type == web_ui_type_) {
// The active WebUI should be reused when dest_url requires a WebUI and
// its type matches the current.
DCHECK(web_ui_);
should_reuse_web_ui_ = true;
} else {
// Otherwise create a new pending WebUI.
pending_web_ui_ = delegate_->CreateWebUIForRenderFrameHost(dest_url);
DCHECK(pending_web_ui_);
pending_web_ui_type_ = new_web_ui_type;
// If we have assigned (zero or more) bindings to the NavigationEntry in
// the past, make sure we're not granting it different bindings than it
// had before. If so, note it and don't give it any bindings, to avoid a
// potential privilege escalation.
if (entry_bindings != NavigationEntryImpl::kInvalidBindings &&
pending_web_ui_->GetBindings() != entry_bindings) {
RecordAction(
base::UserMetricsAction("ProcessSwapBindingsMismatch_RVHM"));
ClearPendingWebUI();
}
}
}
DCHECK_EQ(!pending_web_ui_, pending_web_ui_type_ == WebUI::kNoWebUI);
// Either grant or check the RenderViewHost with/for proper bindings.
if (pending_web_ui_ && !render_view_host_->GetProcess()->IsForGuestsOnly()) {
// If a WebUI was created for the URL and the RenderView is not in a guest
// process, then enable missing bindings with the RenderViewHost.
int new_bindings = pending_web_ui_->GetBindings();
if ((render_view_host_->GetEnabledBindings() & new_bindings) !=
new_bindings) {
render_view_host_->AllowBindings(new_bindings);
}
} else if (render_view_host_->is_active()) {
// If the ongoing navigation is not to a WebUI or the RenderView is in a
// guest process, ensure that we don't create an unprivileged RenderView in
// a WebUI-enabled process unless it's swapped out.
bool url_acceptable_for_webui =
WebUIControllerFactoryRegistry::GetInstance()->IsURLAcceptableForWebUI(
GetSiteInstance()->GetBrowserContext(), dest_url);
if (!url_acceptable_for_webui) {
CHECK(!ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
GetProcess()->GetID()));
}
}
return true;
}
void RenderFrameHostImpl::CommitPendingWebUI() {
if (should_reuse_web_ui_) {
should_reuse_web_ui_ = false;
} else {
web_ui_ = std::move(pending_web_ui_);
web_ui_type_ = pending_web_ui_type_;
pending_web_ui_type_ = WebUI::kNoWebUI;
}
DCHECK(!pending_web_ui_ && pending_web_ui_type_ == WebUI::kNoWebUI &&
!should_reuse_web_ui_);
}
void RenderFrameHostImpl::ClearPendingWebUI() {
pending_web_ui_.reset();
pending_web_ui_type_ = WebUI::kNoWebUI;
should_reuse_web_ui_ = false;
}
void RenderFrameHostImpl::ClearAllWebUI() {
ClearPendingWebUI();
web_ui_type_ = WebUI::kNoWebUI;
web_ui_.reset();
}
const image_downloader::ImageDownloaderPtr&
RenderFrameHostImpl::GetMojoImageDownloader() {
if (!mojo_image_downloader_.get() && GetServiceRegistry()) {
GetServiceRegistry()->ConnectToRemoteService(
mojo::GetProxy(&mojo_image_downloader_));
}
return mojo_image_downloader_;
}
bool RenderFrameHostImpl::IsSameSiteInstance(
RenderFrameHostImpl* other_render_frame_host) {
// As a sanity check, make sure the frame belongs to the same BrowserContext.
CHECK_EQ(GetSiteInstance()->GetBrowserContext(),
other_render_frame_host->GetSiteInstance()->GetBrowserContext());
return GetSiteInstance() == other_render_frame_host->GetSiteInstance();
}
void RenderFrameHostImpl::SetAccessibilityMode(AccessibilityMode mode) {
Send(new FrameMsg_SetAccessibilityMode(routing_id_, mode));
}
void RenderFrameHostImpl::RequestAXTreeSnapshot(
AXTreeSnapshotCallback callback) {
static int next_id = 1;
int callback_id = next_id++;
Send(new AccessibilityMsg_SnapshotTree(routing_id_, callback_id));
ax_tree_snapshot_callbacks_.insert(std::make_pair(callback_id, callback));
}
void RenderFrameHostImpl::SetAccessibilityCallbackForTesting(
const base::Callback<void(ui::AXEvent, int)>& callback) {
accessibility_testing_callback_ = callback;
}
void RenderFrameHostImpl::SetTextTrackSettings(
const FrameMsg_TextTrackSettings_Params& params) {
DCHECK(!GetParent());
Send(new FrameMsg_SetTextTrackSettings(routing_id_, params));
}
const ui::AXTree* RenderFrameHostImpl::GetAXTreeForTesting() {
return ax_tree_for_testing_.get();
}
BrowserAccessibilityManager*
RenderFrameHostImpl::GetOrCreateBrowserAccessibilityManager() {
RenderWidgetHostViewBase* view = GetViewForAccessibility();
if (view &&
!browser_accessibility_manager_ &&
!no_create_browser_accessibility_manager_for_testing_) {
browser_accessibility_manager_.reset(
view->CreateBrowserAccessibilityManager(this));
if (browser_accessibility_manager_)
UMA_HISTOGRAM_COUNTS("Accessibility.FrameEnabledCount", 1);
else
UMA_HISTOGRAM_COUNTS("Accessibility.FrameDidNotEnableCount", 1);
}
return browser_accessibility_manager_.get();
}
void RenderFrameHostImpl::ActivateFindInPageResultForAccessibility(
int request_id) {
AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
if (accessibility_mode & AccessibilityModeFlagPlatform) {
BrowserAccessibilityManager* manager =
GetOrCreateBrowserAccessibilityManager();
if (manager)
manager->ActivateFindInPageResult(request_id);
}
}
void RenderFrameHostImpl::InsertVisualStateCallback(
const VisualStateCallback& callback) {
static uint64_t next_id = 1;
uint64_t key = next_id++;
Send(new FrameMsg_VisualStateRequest(routing_id_, key));
visual_state_callbacks_.insert(std::make_pair(key, callback));
}
bool RenderFrameHostImpl::IsRenderFrameLive() {
bool is_live = GetProcess()->HasConnection() && render_frame_created_;
// Sanity check: the RenderView should always be live if the RenderFrame is.
DCHECK(!is_live || render_view_host_->IsRenderViewLive());
return is_live;
}
int RenderFrameHostImpl::GetProxyCount() {
if (this != frame_tree_node_->current_frame_host())
return 0;
return frame_tree_node_->render_manager()->GetProxyCount();
}
#if defined(OS_WIN)
void RenderFrameHostImpl::SetParentNativeViewAccessible(
gfx::NativeViewAccessible accessible_parent) {
RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
render_view_host_->GetWidget()->GetView());
if (view)
view->SetParentNativeViewAccessible(accessible_parent);
}
gfx::NativeViewAccessible
RenderFrameHostImpl::GetParentNativeViewAccessible() const {
return delegate_->GetParentNativeViewAccessible();
}
#elif defined(OS_MACOSX)
void RenderFrameHostImpl::DidSelectPopupMenuItem(int selected_index) {
Send(new FrameMsg_SelectPopupMenuItem(routing_id_, selected_index));
}
void RenderFrameHostImpl::DidCancelPopupMenu() {
Send(new FrameMsg_SelectPopupMenuItem(routing_id_, -1));
}
#elif defined(OS_ANDROID)
void RenderFrameHostImpl::ActivateNearestFindResult(int request_id,
float x,
float y) {
Send(
new InputMsg_ActivateNearestFindResult(GetRoutingID(), request_id, x, y));
}
void RenderFrameHostImpl::RequestFindMatchRects(int current_version) {
Send(new FrameMsg_FindMatchRects(GetRoutingID(), current_version));
}
void RenderFrameHostImpl::DidSelectPopupMenuItems(
const std::vector<int>& selected_indices) {
Send(new FrameMsg_SelectPopupMenuItems(routing_id_, false, selected_indices));
}
void RenderFrameHostImpl::DidCancelPopupMenu() {
Send(new FrameMsg_SelectPopupMenuItems(
routing_id_, true, std::vector<int>()));
}
#endif
void RenderFrameHostImpl::SetNavigationsSuspended(
bool suspend,
const base::TimeTicks& proceed_time) {
// This should only be called to toggle the state.
DCHECK(navigations_suspended_ != suspend);
navigations_suspended_ = suspend;
if (navigations_suspended_) {
TRACE_EVENT_ASYNC_BEGIN0("navigation",
"RenderFrameHostImpl navigation suspended", this);
} else {
TRACE_EVENT_ASYNC_END0("navigation",
"RenderFrameHostImpl navigation suspended", this);
}
if (!suspend && suspended_nav_params_) {
// There's navigation message params waiting to be sent. Now that we're not
// suspended anymore, resume navigation by sending them. If we were swapped
// out, we should also stop filtering out the IPC messages now.
SetState(RenderFrameHostImpl::STATE_DEFAULT);
DCHECK(!proceed_time.is_null());
// TODO(csharrison): Make sure that PlzNavigate and the current architecture
// measure navigation start in the same way in the presence of the
// BeforeUnload event.
suspended_nav_params_->common_params.navigation_start = proceed_time;
SendNavigateMessage(suspended_nav_params_->common_params,
suspended_nav_params_->start_params,
suspended_nav_params_->request_params);
suspended_nav_params_.reset();
}
}
void RenderFrameHostImpl::CancelSuspendedNavigations() {
// Clear any state if a pending navigation is canceled or preempted.
if (suspended_nav_params_)
suspended_nav_params_.reset();
TRACE_EVENT_ASYNC_END0("navigation",
"RenderFrameHostImpl navigation suspended", this);
navigations_suspended_ = false;
}
void RenderFrameHostImpl::SendNavigateMessage(
const CommonNavigationParams& common_params,
const StartNavigationParams& start_params,
const RequestNavigationParams& request_params) {
RenderFrameDevToolsAgentHost::OnBeforeNavigation(
frame_tree_node_->current_frame_host(), this);
Send(new FrameMsg_Navigate(
routing_id_, common_params, start_params, request_params));
}
void RenderFrameHostImpl::DidUseGeolocationPermission() {
PermissionManager* permission_manager =
GetSiteInstance()->GetBrowserContext()->GetPermissionManager();
if (!permission_manager)
return;
permission_manager->RegisterPermissionUsage(
PermissionType::GEOLOCATION,
GetLastCommittedURL().GetOrigin(),
frame_tree_node()->frame_tree()->GetMainFrame()
->GetLastCommittedURL().GetOrigin());
}
void RenderFrameHostImpl::UpdatePermissionsForNavigation(
const CommonNavigationParams& common_params,
const RequestNavigationParams& request_params) {
// Browser plugin guests are not allowed to navigate outside web-safe schemes,
// so do not grant them the ability to request additional URLs.
if (!GetProcess()->IsForGuestsOnly()) {
ChildProcessSecurityPolicyImpl::GetInstance()->GrantRequestURL(
GetProcess()->GetID(), common_params.url);
if (common_params.url.SchemeIs(url::kDataScheme) &&
common_params.base_url_for_data_url.SchemeIs(url::kFileScheme)) {
// If 'data:' is used, and we have a 'file:' base url, grant access to
// local files.
ChildProcessSecurityPolicyImpl::GetInstance()->GrantRequestURL(
GetProcess()->GetID(), common_params.base_url_for_data_url);
}
}
// We may be returning to an existing NavigationEntry that had been granted
// file access. If this is a different process, we will need to grant the
// access again. The files listed in the page state are validated when they
// are received from the renderer to prevent abuse.
if (request_params.page_state.IsValid()) {
render_view_host_->GrantFileAccessFromPageState(request_params.page_state);
}
}
bool RenderFrameHostImpl::CanExecuteJavaScript() {
return g_allow_injecting_javascript ||
!frame_tree_node_->current_url().is_valid() ||
frame_tree_node_->current_url().SchemeIs(kChromeDevToolsScheme) ||
ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
GetProcess()->GetID()) ||
// It's possible to load about:blank in a Web UI renderer.
// See http://crbug.com/42547
(frame_tree_node_->current_url().spec() == url::kAboutBlankURL) ||
// InterstitialPageImpl should be the only case matching this.
(delegate_->GetAsWebContents() == nullptr);
}
AXTreeIDRegistry::AXTreeID RenderFrameHostImpl::RoutingIDToAXTreeID(
int routing_id) {
RenderFrameHostImpl* rfh = nullptr;
RenderFrameProxyHost* rfph = RenderFrameProxyHost::FromID(
GetProcess()->GetID(), routing_id);
if (rfph) {
FrameTree* frame_tree = frame_tree_node()->frame_tree();
FrameTreeNode* frame_tree_node = frame_tree->FindByRoutingID(
GetProcess()->GetID(), routing_id);
rfh = frame_tree_node->render_manager()->current_frame_host();
} else {
rfh = RenderFrameHostImpl::FromID(GetProcess()->GetID(), routing_id);
}
if (!rfh)
return AXTreeIDRegistry::kNoAXTreeID;
// As a sanity check, make sure we're within the same frame tree and
// crash the renderer if not.
if (rfh->frame_tree_node()->frame_tree() != frame_tree_node()->frame_tree()) {
AccessibilityFatalError();
return AXTreeIDRegistry::kNoAXTreeID;
}
return rfh->GetAXTreeID();
}
AXTreeIDRegistry::AXTreeID
RenderFrameHostImpl::BrowserPluginInstanceIDToAXTreeID(
int instance_id) {
RenderFrameHost* guest = delegate()->GetGuestByInstanceID(
this, instance_id);
if (!guest)
return AXTreeIDRegistry::kNoAXTreeID;
return guest->GetAXTreeID();
}
void RenderFrameHostImpl::AXContentNodeDataToAXNodeData(
const AXContentNodeData& src,
ui::AXNodeData* dst) {
// Copy the common fields.
*dst = src;
// Map content-specific attributes based on routing IDs or browser plugin
// instance IDs to generic attributes with global AXTreeIDs.
for (auto iter : src.content_int_attributes) {
AXContentIntAttribute attr = iter.first;
int32_t value = iter.second;
switch (attr) {
case AX_CONTENT_ATTR_CHILD_ROUTING_ID:
dst->int_attributes.push_back(std::make_pair(
ui::AX_ATTR_CHILD_TREE_ID, RoutingIDToAXTreeID(value)));
break;
case AX_CONTENT_ATTR_CHILD_BROWSER_PLUGIN_INSTANCE_ID:
dst->int_attributes.push_back(std::make_pair(
ui::AX_ATTR_CHILD_TREE_ID,
BrowserPluginInstanceIDToAXTreeID(value)));
break;
case AX_CONTENT_INT_ATTRIBUTE_LAST:
NOTREACHED();
break;
}
}
}
void RenderFrameHostImpl::AXContentTreeDataToAXTreeData(
const AXContentTreeData& src,
ui::AXTreeData* dst) {
// Copy the common fields.
*dst = src;
if (src.routing_id != -1)
dst->tree_id = RoutingIDToAXTreeID(src.routing_id);
if (src.parent_routing_id != -1)
dst->parent_tree_id = RoutingIDToAXTreeID(src.parent_routing_id);
}
} // namespace content