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browser_plugin_guest.cc
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// Copyright (c) 2012 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/browser_plugin/browser_plugin_guest.h"
#include <stddef.h>
#include <algorithm>
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/message_loop/message_loop.h"
#include "base/metrics/user_metrics.h"
#include "base/pickle.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "components/viz/common/surfaces/surface_info.h"
#include "components/viz/service/frame_sinks/frame_sink_manager_impl.h"
#include "components/viz/service/surfaces/surface.h"
#include "content/browser/browser_plugin/browser_plugin_embedder.h"
#include "content/browser/browser_thread_impl.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "content/browser/compositor/surface_utils.h"
#include "content/browser/frame_host/render_frame_host_impl.h"
#include "content/browser/frame_host/render_frame_proxy_host.h"
#include "content/browser/frame_host/render_widget_host_view_guest.h"
#include "content/browser/loader/resource_dispatcher_host_impl.h"
#include "content/browser/renderer_host/render_view_host_impl.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/renderer_host/render_widget_host_view_child_frame.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/browser/web_contents/web_contents_view_guest.h"
#include "content/common/browser_plugin/browser_plugin_constants.h"
#include "content/common/browser_plugin/browser_plugin_messages.h"
#include "content/common/content_constants_internal.h"
#include "content/common/drag_messages.h"
#include "content/common/input/ime_text_span_conversions.h"
#include "content/common/input_messages.h"
#include "content/common/site_isolation_policy.h"
#include "content/common/text_input_state.h"
#include "content/common/view_messages.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_plugin_guest_manager.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/guest_host.h"
#include "content/public/browser/guest_mode.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/common/drop_data.h"
#include "ui/events/blink/web_input_event_traits.h"
#include "ui/gfx/geometry/size_conversions.h"
#if defined(OS_MACOSX)
#include "content/browser/browser_plugin/browser_plugin_popup_menu_helper_mac.h"
#include "content/common/frame_messages.h"
#endif
namespace content {
namespace {
std::vector<ui::ImeTextSpan> ConvertToUiImeTextSpan(
const std::vector<blink::WebImeTextSpan>& ime_text_spans) {
std::vector<ui::ImeTextSpan> ui_ime_text_spans;
for (const auto& ime_text_span : ime_text_spans) {
ui_ime_text_spans.emplace_back(ui::ImeTextSpan(
ConvertWebImeTextSpanTypeToUiType(ime_text_span.type),
ime_text_span.start_offset, ime_text_span.end_offset,
ime_text_span.underline_color, ime_text_span.thick,
ime_text_span.background_color,
ime_text_span.suggestion_highlight_color, ime_text_span.suggestions));
}
return ui_ime_text_spans;
}
}; // namespace
class BrowserPluginGuest::EmbedderVisibilityObserver
: public WebContentsObserver {
public:
explicit EmbedderVisibilityObserver(BrowserPluginGuest* guest)
: WebContentsObserver(guest->embedder_web_contents()),
browser_plugin_guest_(guest) {
}
~EmbedderVisibilityObserver() override {}
// WebContentsObserver implementation.
void WasShown() override {
browser_plugin_guest_->EmbedderVisibilityChanged(true);
}
void WasHidden() override {
browser_plugin_guest_->EmbedderVisibilityChanged(false);
}
private:
BrowserPluginGuest* browser_plugin_guest_;
DISALLOW_COPY_AND_ASSIGN(EmbedderVisibilityObserver);
};
BrowserPluginGuest::BrowserPluginGuest(bool has_render_view,
WebContentsImpl* web_contents,
BrowserPluginGuestDelegate* delegate)
: WebContentsObserver(web_contents),
owner_web_contents_(nullptr),
attached_(false),
has_attached_since_surface_set_(false),
browser_plugin_instance_id_(browser_plugin::kInstanceIDNone),
focused_(false),
mouse_locked_(false),
pending_lock_request_(false),
guest_visible_(false),
embedder_visible_(true),
is_full_page_plugin_(false),
has_render_view_(has_render_view),
is_in_destruction_(false),
initialized_(false),
guest_proxy_routing_id_(MSG_ROUTING_NONE),
last_drag_status_(blink::kWebDragStatusUnknown),
seen_embedder_system_drag_ended_(false),
seen_embedder_drag_source_ended_at_(false),
ignore_dragged_url_(true),
delegate_(delegate),
can_use_cross_process_frames_(delegate->CanUseCrossProcessFrames()),
weak_ptr_factory_(this) {
DCHECK(web_contents);
DCHECK(delegate);
RecordAction(base::UserMetricsAction("BrowserPlugin.Guest.Create"));
web_contents->SetBrowserPluginGuest(this);
delegate->SetGuestHost(this);
}
int BrowserPluginGuest::GetGuestProxyRoutingID() {
if (GuestMode::IsCrossProcessFrameGuest(GetWebContents())) {
// We don't use the proxy to send postMessage in --site-per-process, since
// we use the contentWindow directly from the frame element instead.
return MSG_ROUTING_NONE;
}
if (guest_proxy_routing_id_ != MSG_ROUTING_NONE)
return guest_proxy_routing_id_;
// In order to enable the embedder to post messages to the
// guest, we need to create a RenderFrameProxyHost in root node of guest
// WebContents' frame tree (i.e., create a RenderFrameProxy in the embedder
// process which can be used by the embedder to post messages to the guest).
// The creation of RFPH for the reverse path, which enables the guest to post
// messages to the embedder, will be postponed to when the embedder posts its
// first message to the guest.
//
// TODO(fsamuel): Make sure this works for transferring guests across
// owners in different processes. We probably need to clear the
// |guest_proxy_routing_id_| and perform any necessary cleanup on Detach
// to enable this.
//
// TODO(ekaramad): If the guest is embedded inside a cross-process <iframe>
// (e.g., <embed>-ed PDF), the reverse proxy will not be created and the
// posted message's source attribute will be null which in turn breaks the
// two-way messaging between the guest and the embedder. We should either
// create a RenderFrameProxyHost for the reverse path, or implement
// MimeHandlerViewGuest using OOPIF (https://crbug.com/659750).
SiteInstance* owner_site_instance = delegate_->GetOwnerSiteInstance();
if (!owner_site_instance)
return MSG_ROUTING_NONE;
int proxy_routing_id = GetWebContents()
->GetFrameTree()
->root()
->render_manager()
->CreateRenderFrameProxy(owner_site_instance);
guest_proxy_routing_id_ = RenderFrameProxyHost::FromID(
owner_site_instance->GetProcess()->GetID(), proxy_routing_id)
->GetRenderViewHost()->GetRoutingID();
return guest_proxy_routing_id_;
}
int BrowserPluginGuest::LoadURLWithParams(
const NavigationController::LoadURLParams& load_params) {
GetWebContents()->GetController().LoadURLWithParams(load_params);
return GetGuestProxyRoutingID();
}
void BrowserPluginGuest::GuestResizeDueToAutoResize(const gfx::Size& new_size) {
if (last_seen_view_size_ != new_size) {
delegate_->GuestSizeChanged(new_size);
last_seen_view_size_ = new_size;
}
}
void BrowserPluginGuest::SizeContents(const gfx::Size& new_size) {
GetWebContents()->GetView()->SizeContents(new_size);
}
void BrowserPluginGuest::WillDestroy() {
is_in_destruction_ = true;
// It is important that the WebContents is notified before detaching.
GetWebContents()->BrowserPluginGuestWillDetach();
attached_ = false;
owner_web_contents_ = nullptr;
}
RenderWidgetHostImpl* BrowserPluginGuest::GetOwnerRenderWidgetHost() const {
return static_cast<RenderWidgetHostImpl*>(
delegate_->GetOwnerRenderWidgetHost());
}
void BrowserPluginGuest::Init() {
if (initialized_)
return;
initialized_ = true;
WebContentsImpl* owner_web_contents = static_cast<WebContentsImpl*>(
delegate_->GetOwnerWebContents());
owner_web_contents->CreateBrowserPluginEmbedderIfNecessary();
InitInternal(BrowserPluginHostMsg_Attach_Params(), owner_web_contents);
}
base::WeakPtr<BrowserPluginGuest> BrowserPluginGuest::AsWeakPtr() {
return weak_ptr_factory_.GetWeakPtr();
}
void BrowserPluginGuest::SetFocus(RenderWidgetHost* rwh,
bool focused,
blink::WebFocusType focus_type) {
focused_ = focused;
if (!rwh)
return;
if ((focus_type == blink::kWebFocusTypeForward) ||
(focus_type == blink::kWebFocusTypeBackward)) {
static_cast<RenderViewHostImpl*>(RenderViewHost::From(rwh))
->SetInitialFocus(focus_type == blink::kWebFocusTypeBackward);
}
RenderWidgetHostImpl::From(rwh)->GetWidgetInputHandler()->SetFocus(focused);
if (!focused && mouse_locked_)
OnUnlockMouse();
// Restore the last seen state of text input to the view.
RenderWidgetHostViewBase* rwhv = static_cast<RenderWidgetHostViewBase*>(
rwh->GetView());
SendTextInputTypeChangedToView(rwhv);
}
void BrowserPluginGuest::SetTooltipText(const base::string16& tooltip_text) {
if (tooltip_text == current_tooltip_text_)
return;
current_tooltip_text_ = tooltip_text;
SendMessageToEmbedder(base::MakeUnique<BrowserPluginMsg_SetTooltipText>(
browser_plugin_instance_id_, tooltip_text));
}
bool BrowserPluginGuest::LockMouse(bool allowed) {
if (!attached() || (mouse_locked_ == allowed))
return false;
return embedder_web_contents()->GotResponseToLockMouseRequest(allowed);
}
WebContentsImpl* BrowserPluginGuest::CreateNewGuestWindow(
const WebContents::CreateParams& params) {
WebContentsImpl* new_contents =
static_cast<WebContentsImpl*>(delegate_->CreateNewGuestWindow(params));
DCHECK(new_contents);
return new_contents;
}
bool BrowserPluginGuest::OnMessageReceivedFromEmbedder(
const IPC::Message& message) {
RenderWidgetHostViewGuest* rwhv = static_cast<RenderWidgetHostViewGuest*>(
web_contents()->GetRenderWidgetHostView());
// Until the guest is attached, it should not be handling input events.
if (attached() && rwhv &&
rwhv->OnMessageReceivedFromEmbedder(message,
GetOwnerRenderWidgetHost())) {
return true;
}
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(BrowserPluginGuest, message)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_Detach, OnDetach)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_DragStatusUpdate,
OnDragStatusUpdate)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ExecuteEditCommand,
OnExecuteEditCommand)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ExtendSelectionAndDelete,
OnExtendSelectionAndDelete)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ImeCommitText, OnImeCommitText)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ImeFinishComposingText,
OnImeFinishComposingText)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ImeSetComposition,
OnImeSetComposition)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_LockMouse_ACK, OnLockMouseAck)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_SetEditCommandsForNextKeyEvent,
OnSetEditCommandsForNextKeyEvent)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_SetFocus, OnSetFocus)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_SetVisibility, OnSetVisibility)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_UnlockMouse_ACK, OnUnlockMouseAck)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_UpdateGeometry, OnUpdateGeometry)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_SatisfySequence, OnSatisfySequence)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_RequireSequence, OnRequireSequence)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void BrowserPluginGuest::InitInternal(
const BrowserPluginHostMsg_Attach_Params& params,
WebContentsImpl* owner_web_contents) {
focused_ = params.focused;
OnSetFocus(browser_plugin::kInstanceIDNone, focused_,
blink::kWebFocusTypeNone);
guest_visible_ = params.visible;
UpdateVisibility();
is_full_page_plugin_ = params.is_full_page_plugin;
guest_window_rect_ = params.view_rect;
if (owner_web_contents_ != owner_web_contents) {
WebContentsViewGuest* new_view = nullptr;
if (!GuestMode::IsCrossProcessFrameGuest(GetWebContents())) {
new_view =
static_cast<WebContentsViewGuest*>(GetWebContents()->GetView());
}
if (owner_web_contents_ && new_view)
new_view->OnGuestDetached(owner_web_contents_->GetView());
// Once a BrowserPluginGuest has an embedder WebContents, it's considered to
// be attached.
owner_web_contents_ = owner_web_contents;
if (new_view)
new_view->OnGuestAttached(owner_web_contents_->GetView());
}
RendererPreferences* renderer_prefs =
GetWebContents()->GetMutableRendererPrefs();
std::string guest_user_agent_override = renderer_prefs->user_agent_override;
// Copy renderer preferences (and nothing else) from the embedder's
// WebContents to the guest.
//
// For GTK and Aura this is necessary to get proper renderer configuration
// values for caret blinking interval, colors related to selection and
// focus.
*renderer_prefs = *owner_web_contents_->GetMutableRendererPrefs();
renderer_prefs->user_agent_override = guest_user_agent_override;
// Navigation is disabled in Chrome Apps. We want to make sure guest-initiated
// navigations still continue to function inside the app.
renderer_prefs->browser_handles_all_top_level_requests = false;
// Disable "client blocked" error page for browser plugin.
renderer_prefs->disable_client_blocked_error_page = true;
embedder_visibility_observer_.reset(new EmbedderVisibilityObserver(this));
DCHECK(GetWebContents()->GetRenderViewHost());
// Initialize the device scale factor by calling |NotifyScreenInfoChanged|.
auto* render_widget_host = RenderWidgetHostImpl::From(
GetWebContents()->GetRenderViewHost()->GetWidget());
render_widget_host->NotifyScreenInfoChanged();
// TODO(chrishtr): this code is wrong. The navigate_on_drag_drop field will
// be reset again the next time preferences are updated.
WebPreferences prefs =
GetWebContents()->GetRenderViewHost()->GetWebkitPreferences();
prefs.navigate_on_drag_drop = false;
GetWebContents()->GetRenderViewHost()->UpdateWebkitPreferences(prefs);
}
BrowserPluginGuest::~BrowserPluginGuest() {
}
// static
BrowserPluginGuest* BrowserPluginGuest::Create(
WebContentsImpl* web_contents,
BrowserPluginGuestDelegate* delegate) {
return new BrowserPluginGuest(
web_contents->HasOpener(), web_contents, delegate);
}
// static
bool BrowserPluginGuest::IsGuest(WebContentsImpl* web_contents) {
return web_contents && web_contents->GetBrowserPluginGuest();
}
// static
bool BrowserPluginGuest::IsGuest(RenderViewHostImpl* render_view_host) {
return render_view_host && IsGuest(
static_cast<WebContentsImpl*>(WebContents::FromRenderViewHost(
render_view_host)));
}
RenderWidgetHostView* BrowserPluginGuest::GetOwnerRenderWidgetHostView() {
if (RenderWidgetHostImpl* owner = GetOwnerRenderWidgetHost())
return owner->GetView();
return nullptr;
}
void BrowserPluginGuest::UpdateVisibility() {
OnSetVisibility(browser_plugin_instance_id(), visible());
}
BrowserPluginGuestManager*
BrowserPluginGuest::GetBrowserPluginGuestManager() const {
return GetWebContents()->GetBrowserContext()->GetGuestManager();
}
void BrowserPluginGuest::EmbedderVisibilityChanged(bool visible) {
embedder_visible_ = visible;
UpdateVisibility();
}
void BrowserPluginGuest::PointerLockPermissionResponse(bool allow) {
SendMessageToEmbedder(base::MakeUnique<BrowserPluginMsg_SetMouseLock>(
browser_plugin_instance_id(), allow));
}
void BrowserPluginGuest::SetChildFrameSurface(
const viz::SurfaceInfo& surface_info,
const viz::SurfaceSequence& sequence) {
has_attached_since_surface_set_ = false;
SendMessageToEmbedder(base::MakeUnique<BrowserPluginMsg_SetChildFrameSurface>(
browser_plugin_instance_id(), surface_info, sequence));
}
void BrowserPluginGuest::OnSatisfySequence(
int instance_id,
const viz::SurfaceSequence& sequence) {
GetFrameSinkManager()->surface_manager()->SatisfySequence(sequence);
}
void BrowserPluginGuest::OnRequireSequence(
int instance_id,
const viz::SurfaceId& id,
const viz::SurfaceSequence& sequence) {
GetFrameSinkManager()->surface_manager()->RequireSequence(id, sequence);
}
void BrowserPluginGuest::ResendEventToEmbedder(
const blink::WebInputEvent& event) {
if (!attached() || !owner_web_contents_)
return;
DCHECK(browser_plugin_instance_id_);
RenderWidgetHostViewBase* view =
static_cast<RenderWidgetHostViewBase*>(GetOwnerRenderWidgetHostView());
gfx::Vector2d offset_from_embedder = guest_window_rect_.OffsetFromOrigin();
if (event.GetType() == blink::WebInputEvent::kGestureScrollUpdate) {
blink::WebGestureEvent resent_gesture_event;
memcpy(&resent_gesture_event, &event, sizeof(blink::WebGestureEvent));
resent_gesture_event.x += offset_from_embedder.x();
resent_gesture_event.y += offset_from_embedder.y();
// Mark the resend source with the browser plugin's instance id, so the
// correct browser_plugin will know to ignore the event.
resent_gesture_event.resending_plugin_id = browser_plugin_instance_id_;
ui::LatencyInfo latency_info =
ui::WebInputEventTraits::CreateLatencyInfoForWebGestureEvent(
resent_gesture_event);
view->ProcessGestureEvent(resent_gesture_event, latency_info);
} else if (event.GetType() == blink::WebInputEvent::kMouseWheel) {
blink::WebMouseWheelEvent resent_wheel_event;
memcpy(&resent_wheel_event, &event, sizeof(blink::WebMouseWheelEvent));
resent_wheel_event.SetPositionInWidget(
resent_wheel_event.PositionInWidget().x + offset_from_embedder.x(),
resent_wheel_event.PositionInWidget().y + offset_from_embedder.y());
resent_wheel_event.resending_plugin_id = browser_plugin_instance_id_;
// TODO(wjmaclean): Initialize latency info correctly for OOPIFs.
// https://crbug.com/613628
ui::LatencyInfo latency_info(ui::SourceEventType::WHEEL);
view->ProcessMouseWheelEvent(resent_wheel_event, latency_info);
} else {
NOTIMPLEMENTED();
}
}
gfx::Point BrowserPluginGuest::GetCoordinatesInEmbedderWebContents(
const gfx::Point& relative_point) {
RenderWidgetHostView* owner_rwhv = GetOwnerRenderWidgetHostView();
if (!owner_rwhv)
return relative_point;
gfx::Point point(relative_point);
// Add the offset form the embedder web contents view.
point +=
owner_rwhv->TransformPointToRootCoordSpace(guest_window_rect_.origin())
.OffsetFromOrigin();
if (embedder_web_contents()->GetBrowserPluginGuest()) {
// |point| is currently with respect to the top-most view (outermost
// WebContents). We should subtract a displacement to find the point with
// resepct to embedder's WebContents.
point -= owner_rwhv->TransformPointToRootCoordSpace(gfx::Point())
.OffsetFromOrigin();
}
return point;
}
WebContentsImpl* BrowserPluginGuest::GetWebContents() const {
return static_cast<WebContentsImpl*>(web_contents());
}
gfx::Point BrowserPluginGuest::GetScreenCoordinates(
const gfx::Point& relative_position) const {
if (!attached())
return relative_position;
gfx::Point screen_pos(relative_position);
screen_pos += guest_window_rect_.OffsetFromOrigin();
return screen_pos;
}
void BrowserPluginGuest::SendMessageToEmbedder(
std::unique_ptr<IPC::Message> msg) {
// During tests, attache() may be true when there is no owner_web_contents_;
// in this case just queue any messages we receive.
if (!attached() || !owner_web_contents_) {
// Some pages such as data URLs, javascript URLs, and about:blank
// do not load external resources and so they load prior to attachment.
// As a result, we must save all these IPCs until attachment and then
// forward them so that the embedder gets a chance to see and process
// the load events.
pending_messages_.push_back(std::move(msg));
return;
}
// If the guest is inside a cross-process frame, it is possible to get here
// after the owner frame is detached. Then, the owner RenderWidgetHost will
// be null and the message is dropped.
if (auto* rwh = GetOwnerRenderWidgetHost())
rwh->Send(msg.release());
}
void BrowserPluginGuest::DragSourceEndedAt(int client_x,
int client_y,
int screen_x,
int screen_y,
blink::WebDragOperation operation) {
web_contents()->GetRenderViewHost()->GetWidget()->DragSourceEndedAt(
gfx::Point(client_x, client_y),
gfx::Point(screen_x, screen_y),
operation);
seen_embedder_drag_source_ended_at_ = true;
EndSystemDragIfApplicable();
}
void BrowserPluginGuest::EndSystemDragIfApplicable() {
// Ideally we'd want either WebDragStatusDrop or WebDragStatusLeave...
// Call guest RVH->DragSourceSystemDragEnded() correctly on the guest where
// the drag was initiated. Calling DragSourceSystemDragEnded() correctly
// means we call it in all cases and also make sure we only call it once.
// This ensures that the input state of the guest stays correct, otherwise
// it will go stale and won't accept any further input events.
//
// The strategy used here to call DragSourceSystemDragEnded() on the RVH
// is when the following conditions are met:
// a. Embedder has seen SystemDragEnded()
// b. Embedder has seen DragSourceEndedAt()
// c. The guest has seen some drag status update other than
// WebDragStatusUnknown. Note that this step should ideally be done
// differently: The guest has seen at least one of
// {WebDragStatusOver, WebDragStatusDrop}. However, if a user drags
// a source quickly outside of <webview> bounds, then the
// BrowserPluginGuest never sees any of these drag status updates,
// there we just check whether we've seen any drag status update or
// not.
if (last_drag_status_ != blink::kWebDragStatusOver &&
seen_embedder_drag_source_ended_at_ && seen_embedder_system_drag_ended_) {
RenderViewHostImpl* guest_rvh = static_cast<RenderViewHostImpl*>(
GetWebContents()->GetRenderViewHost());
guest_rvh->GetWidget()->DragSourceSystemDragEnded();
last_drag_status_ = blink::kWebDragStatusUnknown;
seen_embedder_system_drag_ended_ = false;
seen_embedder_drag_source_ended_at_ = false;
ignore_dragged_url_ = true;
}
}
void BrowserPluginGuest::EmbedderSystemDragEnded() {
seen_embedder_system_drag_ended_ = true;
EndSystemDragIfApplicable();
}
// TODO(wjmaclean): Replace this approach with ones based on std::function
// as in https://codereview.chromium.org/1404353004/ once all Chrome platforms
// support this. https://crbug.com/544212
std::unique_ptr<IPC::Message> BrowserPluginGuest::UpdateInstanceIdIfNecessary(
std::unique_ptr<IPC::Message> msg) const {
DCHECK(msg.get());
int msg_browser_plugin_instance_id = browser_plugin::kInstanceIDNone;
base::PickleIterator iter(*msg.get());
if (!iter.ReadInt(&msg_browser_plugin_instance_id) ||
msg_browser_plugin_instance_id != browser_plugin::kInstanceIDNone) {
return msg;
}
// This method may be called with no browser_plugin_instance_id in tests.
if (!browser_plugin_instance_id())
return msg;
std::unique_ptr<IPC::Message> new_msg(
new IPC::Message(msg->routing_id(), msg->type(), msg->priority()));
new_msg->WriteInt(browser_plugin_instance_id());
// Copy remaining payload from original message.
// TODO(wjmaclean): it would be nice if IPC::PickleIterator had a method
// like 'RemainingBytes()' so that we don't have to include implementation-
// specific details like sizeof() in the next line.
DCHECK(msg->payload_size() > sizeof(int));
size_t remaining_bytes = msg->payload_size() - sizeof(int);
const char* data = nullptr;
bool read_success = iter.ReadBytes(&data, remaining_bytes);
CHECK(read_success)
<< "Unexpected failure reading remaining IPC::Message payload.";
bool write_success = new_msg->WriteBytes(data, remaining_bytes);
CHECK(write_success)
<< "Unexpected failure writing remaining IPC::Message payload.";
return new_msg;
}
void BrowserPluginGuest::SendQueuedMessages() {
if (!attached())
return;
while (!pending_messages_.empty()) {
std::unique_ptr<IPC::Message> message_ptr =
std::move(pending_messages_.front());
pending_messages_.pop_front();
SendMessageToEmbedder(UpdateInstanceIdIfNecessary(std::move(message_ptr)));
}
}
void BrowserPluginGuest::SendTextInputTypeChangedToView(
RenderWidgetHostViewBase* guest_rwhv) {
if (!guest_rwhv)
return;
if (!owner_web_contents_) {
// If we were showing an interstitial, then we can end up here during
// embedder shutdown or when the embedder navigates to a different page.
// The call stack is roughly:
// BrowserPluginGuest::SetFocus()
// content::InterstitialPageImpl::Hide()
// content::InterstitialPageImpl::DontProceed().
//
// TODO(lazyboy): Write a WebUI test once http://crbug.com/463674 is fixed.
return;
}
if (last_text_input_state_.get()) {
guest_rwhv->TextInputStateChanged(*last_text_input_state_);
if (auto* rwh =
RenderWidgetHostImpl::From(guest_rwhv->GetRenderWidgetHost())) {
// We need composition range information for some IMEs. To get the
// updates, we need to explicitly ask the renderer to monitor and send the
// composition information changes. RenderWidgetHostView of the page will
// send the request to its process but the machinery for forwarding it to
// BrowserPlugin is not there. Therefore, we send a direct request to the
// guest process to start monitoring the state (see
// https://crbug.com/714771).
rwh->RequestCompositionUpdates(
false, last_text_input_state_->type != ui::TEXT_INPUT_TYPE_NONE);
}
}
}
void BrowserPluginGuest::DidFinishNavigation(
NavigationHandle* navigation_handle) {
if (navigation_handle->HasCommitted())
RecordAction(base::UserMetricsAction("BrowserPlugin.Guest.DidNavigate"));
}
void BrowserPluginGuest::RenderViewReady() {
if (GuestMode::IsCrossProcessFrameGuest(GetWebContents()))
return;
RenderViewHost* rvh = GetWebContents()->GetRenderViewHost();
// TODO(fsamuel): Investigate whether it's possible to update state earlier
// here (see http://crbug.com/158151).
RenderWidgetHostImpl::From(rvh->GetWidget())
->GetWidgetInputHandler()
->SetFocus(focused_);
UpdateVisibility();
// In case we've created a new guest render process after a crash, let the
// associated BrowserPlugin know. We only need to send this if we're attached,
// as guest_crashed_ is cleared automatically on attach anyways.
if (attached()) {
RenderWidgetHostViewGuest* rwhv = static_cast<RenderWidgetHostViewGuest*>(
web_contents()->GetRenderWidgetHostView());
SendMessageToEmbedder(base::MakeUnique<BrowserPluginMsg_GuestReady>(
browser_plugin_instance_id(), rwhv->GetFrameSinkId()));
}
RenderWidgetHostImpl::From(rvh->GetWidget())
->set_hung_renderer_delay(
base::TimeDelta::FromMilliseconds(kHungRendererDelayMs));
}
void BrowserPluginGuest::RenderProcessGone(base::TerminationStatus status) {
SendMessageToEmbedder(base::MakeUnique<BrowserPluginMsg_GuestGone>(
browser_plugin_instance_id()));
switch (status) {
#if defined(OS_CHROMEOS)
case base::TERMINATION_STATUS_PROCESS_WAS_KILLED_BY_OOM:
#endif
case base::TERMINATION_STATUS_PROCESS_WAS_KILLED:
RecordAction(base::UserMetricsAction("BrowserPlugin.Guest.Killed"));
break;
case base::TERMINATION_STATUS_PROCESS_CRASHED:
RecordAction(base::UserMetricsAction("BrowserPlugin.Guest.Crashed"));
break;
case base::TERMINATION_STATUS_ABNORMAL_TERMINATION:
RecordAction(
base::UserMetricsAction("BrowserPlugin.Guest.AbnormalDeath"));
break;
case base::TERMINATION_STATUS_LAUNCH_FAILED:
RecordAction(base::UserMetricsAction("BrowserPlugin.Guest.LaunchFailed"));
break;
default:
break;
}
}
// static
bool BrowserPluginGuest::ShouldForwardToBrowserPluginGuest(
const IPC::Message& message) {
return (message.type() != BrowserPluginHostMsg_Attach::ID) &&
(IPC_MESSAGE_CLASS(message) == BrowserPluginMsgStart);
}
bool BrowserPluginGuest::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
// In --site-per-process, we do not need most of BrowserPluginGuest to drive
// inner WebContents.
// Right now InputHostMsg_ImeCompositionRangeChanged hits NOTREACHED() in
// RWHVChildFrame, so we're disabling message handling entirely here.
// TODO(lazyboy): Fix this as part of http://crbug.com/330264. The required
// parts of code from this class should be extracted to a separate class for
// --site-per-process.
if (GuestMode::IsCrossProcessFrameGuest(GetWebContents()))
return false;
IPC_BEGIN_MESSAGE_MAP(BrowserPluginGuest, message)
IPC_MESSAGE_HANDLER(InputHostMsg_ImeCancelComposition,
OnImeCancelComposition)
#if defined(OS_MACOSX) || defined(USE_AURA)
IPC_MESSAGE_HANDLER(InputHostMsg_ImeCompositionRangeChanged,
OnImeCompositionRangeChanged)
#endif
IPC_MESSAGE_HANDLER(ViewHostMsg_HasTouchEventHandlers,
OnHasTouchEventHandlers)
IPC_MESSAGE_HANDLER(ViewHostMsg_LockMouse, OnLockMouse)
IPC_MESSAGE_HANDLER(ViewHostMsg_ShowWidget, OnShowWidget)
IPC_MESSAGE_HANDLER(ViewHostMsg_TakeFocus, OnTakeFocus)
IPC_MESSAGE_HANDLER(ViewHostMsg_TextInputStateChanged,
OnTextInputStateChanged)
IPC_MESSAGE_HANDLER(ViewHostMsg_UnlockMouse, OnUnlockMouse)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
bool BrowserPluginGuest::OnMessageReceived(const IPC::Message& message,
RenderFrameHost* render_frame_host) {
// This will eventually be the home for more IPC handlers that depend on
// RenderFrameHost. Until more are moved here, though, the IPC_* macros won't
// compile if there are no handlers for a platform. So we have both #if guards
// around the whole thing (unfortunate but temporary), and #if guards where
// they belong, only around the one IPC handler. TODO(avi): Move more of the
// frame-based handlers to this function and remove the outer #if layer.
#if defined(OS_MACOSX)
bool handled = true;
IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(BrowserPluginGuest, message,
render_frame_host)
#if defined(OS_MACOSX)
// MacOS X creates and populates platform-specific select drop-down menus
// whereas other platforms merely create a popup window that the guest
// renderer process paints inside.
IPC_MESSAGE_HANDLER(FrameHostMsg_ShowPopup, OnShowPopup)
#endif
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
#else
return false;
#endif
}
void BrowserPluginGuest::Attach(
int browser_plugin_instance_id,
WebContentsImpl* embedder_web_contents,
const BrowserPluginHostMsg_Attach_Params& params) {
browser_plugin_instance_id_ = browser_plugin_instance_id;
// The guest is owned by the embedder. Attach is queued up so we cannot
// change embedders before attach completes. If the embedder goes away,
// so does the guest and so we will never call WillAttachComplete because
// we have a weak ptr.
delegate_->WillAttach(embedder_web_contents, browser_plugin_instance_id,
params.is_full_page_plugin,
base::Bind(&BrowserPluginGuest::OnWillAttachComplete,
weak_ptr_factory_.GetWeakPtr(),
embedder_web_contents, params));
}
void BrowserPluginGuest::OnWillAttachComplete(
WebContentsImpl* embedder_web_contents,
const BrowserPluginHostMsg_Attach_Params& params) {
// If a RenderView has already been created for this new window, then we need
// to initialize the browser-side state now so that the RenderFrameHostManager
// does not create a new RenderView on navigation.
if (has_render_view_) {
// This will trigger a callback to RenderViewReady after a round-trip IPC.
static_cast<RenderViewHostImpl*>(GetWebContents()->GetRenderViewHost())
->GetWidget()
->Init();
GetWebContents()->GetMainFrame()->Init();
WebContentsViewGuest* web_contents_view =
static_cast<WebContentsViewGuest*>(GetWebContents()->GetView());
if (!web_contents()->GetRenderViewHost()->GetWidget()->GetView()) {
web_contents_view->CreateViewForWidget(
web_contents()->GetRenderViewHost()->GetWidget(), true);
}
}
InitInternal(params, embedder_web_contents);
attached_ = true;
has_attached_since_surface_set_ = true;
SendQueuedMessages();
delegate_->DidAttach(GetGuestProxyRoutingID());
RenderWidgetHostViewGuest* rwhv = static_cast<RenderWidgetHostViewGuest*>(
web_contents()->GetRenderWidgetHostView());
if (rwhv)
rwhv->RegisterFrameSinkId();
has_render_view_ = true;
RecordAction(base::UserMetricsAction("BrowserPlugin.Guest.Attached"));
}
void BrowserPluginGuest::OnDetach(int browser_plugin_instance_id) {
if (!attached())
return;
// It is important that the WebContents is notified before detaching.
GetWebContents()->BrowserPluginGuestWillDetach();
// This tells BrowserPluginGuest to queue up all IPCs to BrowserPlugin until
// it's attached again.
attached_ = false;
RenderWidgetHostViewChildFrame* rwhv =
static_cast<RenderWidgetHostViewChildFrame*>(
web_contents()->GetRenderWidgetHostView());
// If the guest is terminated, our host may already be gone.
if (rwhv)
rwhv->UnregisterFrameSinkId();
delegate_->DidDetach();
}
void BrowserPluginGuest::OnDragStatusUpdate(int browser_plugin_instance_id,
blink::WebDragStatus drag_status,
const DropData& drop_data,
blink::WebDragOperationsMask mask,
const gfx::Point& location) {
RenderViewHost* host = GetWebContents()->GetRenderViewHost();
auto* embedder = owner_web_contents_->GetBrowserPluginEmbedder();
DropData filtered_data(drop_data);
// TODO(paulmeyer): This will need to target the correct specific
// RenderWidgetHost to work with OOPIFs. See crbug.com/647249.
RenderWidgetHost* widget = host->GetWidget();
widget->FilterDropData(&filtered_data);
switch (drag_status) {
case blink::kWebDragStatusEnter:
widget->DragTargetDragEnter(filtered_data, location, location, mask,
drop_data.key_modifiers);
// Only track the URL being dragged over the guest if the link isn't
// coming from the guest.
if (!embedder->DragEnteredGuest(this))
ignore_dragged_url_ = false;
break;
case blink::kWebDragStatusOver:
widget->DragTargetDragOver(location, location, mask,
drop_data.key_modifiers);
break;
case blink::kWebDragStatusLeave:
embedder->DragLeftGuest(this);
widget->DragTargetDragLeave(gfx::Point(), gfx::Point());
ignore_dragged_url_ = true;
break;
case blink::kWebDragStatusDrop:
widget->DragTargetDrop(filtered_data, location, location,
drop_data.key_modifiers);
if (!ignore_dragged_url_ && filtered_data.url.is_valid())
delegate_->DidDropLink(filtered_data.url);
ignore_dragged_url_ = true;
break;
case blink::kWebDragStatusUnknown:
ignore_dragged_url_ = true;
NOTREACHED();
}
last_drag_status_ = drag_status;
EndSystemDragIfApplicable();
}
void BrowserPluginGuest::OnExecuteEditCommand(int browser_plugin_instance_id,
const std::string& name) {
RenderFrameHostImpl* focused_frame =
static_cast<RenderFrameHostImpl*>(web_contents()->GetFocusedFrame());
if (!focused_frame)
return;
focused_frame->GetFrameInputHandler()->ExecuteEditCommand(name,
base::nullopt);
}
void BrowserPluginGuest::OnImeSetComposition(
int browser_plugin_instance_id,
const BrowserPluginHostMsg_SetComposition_Params& params) {
std::vector<ui::ImeTextSpan> ui_ime_text_spans =
ConvertToUiImeTextSpan(params.ime_text_spans);
GetWebContents()
->GetRenderViewHost()
->GetWidget()
->GetWidgetInputHandler()
->ImeSetComposition(params.text, ui_ime_text_spans,
params.replacement_range, params.selection_start,
params.selection_end);
}
void BrowserPluginGuest::OnImeCommitText(
int browser_plugin_instance_id,
const base::string16& text,
const std::vector<blink::WebImeTextSpan>& ime_text_spans,
const gfx::Range& replacement_range,
int relative_cursor_pos) {
std::vector<ui::ImeTextSpan> ui_ime_text_spans =
ConvertToUiImeTextSpan(ime_text_spans);
GetWebContents()
->GetRenderViewHost()
->GetWidget()
->GetWidgetInputHandler()
->ImeCommitText(text, ui_ime_text_spans, replacement_range,
relative_cursor_pos);
}
void BrowserPluginGuest::OnImeFinishComposingText(
int browser_plugin_instance_id,
bool keep_selection) {
DCHECK_EQ(browser_plugin_instance_id_, browser_plugin_instance_id);
GetWebContents()
->GetRenderViewHost()
->GetWidget()
->GetWidgetInputHandler()
->ImeFinishComposingText(keep_selection);
}
void BrowserPluginGuest::OnExtendSelectionAndDelete(
int browser_plugin_instance_id,
int before,
int after) {
RenderFrameHostImpl* rfh = static_cast<RenderFrameHostImpl*>(
web_contents()->GetFocusedFrame());
if (rfh)
rfh->GetFrameInputHandler()->ExtendSelectionAndDelete(before, after);
}
void BrowserPluginGuest::OnLockMouse(bool user_gesture,
bool privileged) {
if (pending_lock_request_) {
// Immediately reject the lock because only one pointerLock may be active
// at a time.
RenderWidgetHost* widget_host =
web_contents()->GetRenderViewHost()->GetWidget();
widget_host->Send(
new ViewMsg_LockMouse_ACK(widget_host->GetRoutingID(), false));
return;
}
pending_lock_request_ = true;