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chromium / chromium / src / lkgr-ios-internal / . / content / browser / renderer_host / render_widget_host_impl.cc
blob: 7aaea0969a47e0e34e529863867e0a0a7b586692 [file] [log] [blame]
// 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/renderer_host/render_widget_host_impl.h"
#include <math.h>
#include <algorithm>
#include <set>
#include <tuple>
#include <unordered_map>
#include <utility>
#include <vector>
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/check.h"
#include "base/command_line.h"
#include "base/debug/alias.h"
#include "base/debug/dump_without_crashing.h"
#include "base/files/file_path.h"
#include "base/hash/hash.h"
#include "base/i18n/rtl.h"
#include "base/lazy_instance.h"
#include "base/location.h"
#include "base/macros.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram_macros.h"
#include "base/optional.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/current_thread.h"
#include "base/task/post_task.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/default_tick_clock.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "cc/base/switches.h"
#include "cc/trees/browser_controls_params.h"
#include "cc/trees/render_frame_metadata.h"
#include "components/power_scheduler/power_mode.h"
#include "components/power_scheduler/power_mode_arbiter.h"
#include "components/power_scheduler/power_mode_voter.h"
#include "components/viz/common/features.h"
#include "components/viz/host/host_frame_sink_manager.h"
#include "content/browser/accessibility/browser_accessibility_manager.h"
#include "content/browser/accessibility/browser_accessibility_state_impl.h"
#include "content/browser/bad_message.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "content/browser/compositor/surface_utils.h"
#include "content/browser/devtools/devtools_instrumentation.h"
#include "content/browser/file_system/browser_file_system_helper.h"
#include "content/browser/file_system_access/file_system_access_manager_impl.h"
#include "content/browser/gpu/compositor_util.h"
#include "content/browser/renderer_host/agent_scheduling_group_host.h"
#include "content/browser/renderer_host/data_transfer_util.h"
#include "content/browser/renderer_host/dip_util.h"
#include "content/browser/renderer_host/display_feature.h"
#include "content/browser/renderer_host/display_util.h"
#include "content/browser/renderer_host/frame_token_message_queue.h"
#include "content/browser/renderer_host/frame_tree.h"
#include "content/browser/renderer_host/input/fling_scheduler.h"
#include "content/browser/renderer_host/input/input_router_config_helper.h"
#include "content/browser/renderer_host/input/input_router_impl.h"
#include "content/browser/renderer_host/input/synthetic_gesture.h"
#include "content/browser/renderer_host/input/synthetic_gesture_controller.h"
#include "content/browser/renderer_host/input/synthetic_gesture_target.h"
#include "content/browser/renderer_host/input/timeout_monitor.h"
#include "content/browser/renderer_host/input/touch_emulator.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_helper.h"
#include "content/browser/renderer_host/render_widget_host_input_event_router.h"
#include "content/browser/renderer_host/render_widget_host_owner_delegate.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/storage_partition_impl.h"
#include "content/common/content_constants_internal.h"
#include "content/common/cursors/webcursor.h"
#include "content/common/frame_messages.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/device_service.h"
#include "content/public/browser/keyboard_event_processing_result.h"
#include "content/public/browser/native_web_keyboard_event.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/peak_gpu_memory_tracker.h"
#include "content/public/browser/render_frame_metadata_provider.h"
#include "content/public/browser/render_widget_host_iterator.h"
#include "content/public/browser/render_widget_host_observer.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/drop_data.h"
#include "content/public/common/result_codes.h"
#include "content/public/common/use_zoom_for_dsf_policy.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/service/gpu_switches.h"
#include "gpu/ipc/common/gpu_messages.h"
#include "mojo/public/cpp/bindings/callback_helpers.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/system/platform_handle.h"
#include "net/base/filename_util.h"
#include "services/network/public/mojom/referrer_policy.mojom-shared.h"
#include "skia/ext/image_operations.h"
#include "skia/ext/platform_canvas.h"
#include "skia/ext/skia_utils_base.h"
#include "storage/browser/file_system/isolated_context.h"
#include "third_party/blink/public/common/input/synthetic_web_input_event_builders.h"
#include "third_party/blink/public/common/web_preferences/web_preferences.h"
#include "third_party/blink/public/common/widget/visual_properties.h"
#include "third_party/blink/public/mojom/input/touch_event.mojom.h"
#include "third_party/blink/public/mojom/page/drag.mojom.h"
#include "ui/base/clipboard/clipboard_constants.h"
#include "ui/base/dragdrop/mojom/drag_drop_types.mojom.h"
#include "ui/base/ui_base_switches.h"
#include "ui/display/display_switches.h"
#include "ui/display/screen.h"
#include "ui/events/blink/web_input_event_traits.h"
#include "ui/events/event.h"
#include "ui/events/keycodes/dom/dom_code.h"
#include "ui/gfx/color_space.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/geometry/vector2d_conversions.h"
#include "ui/gfx/geometry/vector2d_f.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/skbitmap_operations.h"
#include "ui/snapshot/snapshot.h"
#if defined(OS_ANDROID)
#include "content/browser/renderer_host/input/fling_scheduler_android.h"
#include "ui/android/view_android.h"
#endif
#if defined(OS_MAC)
#include "content/browser/renderer_host/input/fling_scheduler_mac.h"
#include "services/device/public/mojom/wake_lock_provider.mojom.h"
#include "ui/accelerated_widget_mac/window_resize_helper_mac.h"
#endif
using blink::DragOperationsMask;
using blink::WebGestureEvent;
using blink::WebInputEvent;
using blink::WebKeyboardEvent;
using blink::WebMouseEvent;
using blink::WebMouseWheelEvent;
namespace content {
namespace {
// How long to wait for newly loaded content to send a compositor frame
// before clearing previously displayed graphics.
constexpr base::TimeDelta kNewContentRenderingDelay =
base::TimeDelta::FromSeconds(4);
bool g_check_for_pending_visual_properties_ack = true;
bool ShouldDisableHangMonitor() {
return base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableHangMonitor);
}
// <process id, routing id>
using RenderWidgetHostID = std::pair<int32_t, int32_t>;
using RoutingIDWidgetMap =
std::unordered_map<RenderWidgetHostID,
RenderWidgetHostImpl*,
base::IntPairHash<RenderWidgetHostID>>;
base::LazyInstance<RoutingIDWidgetMap>::DestructorAtExit
g_routing_id_widget_map = LAZY_INSTANCE_INITIALIZER;
// Implements the RenderWidgetHostIterator interface. It keeps a list of
// RenderWidgetHosts, and makes sure it returns a live RenderWidgetHost at each
// iteration (or NULL if there isn't any left).
class RenderWidgetHostIteratorImpl : public RenderWidgetHostIterator {
public:
RenderWidgetHostIteratorImpl() = default;
~RenderWidgetHostIteratorImpl() override = default;
void Add(RenderWidgetHost* host) {
hosts_.emplace_back(host->GetProcess()->GetID(), host->GetRoutingID());
}
// RenderWidgetHostIterator:
RenderWidgetHost* GetNextHost() override {
RenderWidgetHost* host = nullptr;
while (current_index_ < hosts_.size() && !host) {
RenderWidgetHostID id = hosts_[current_index_];
host = RenderWidgetHost::FromID(id.first, id.second);
++current_index_;
}
return host;
}
private:
std::vector<RenderWidgetHostID> hosts_;
size_t current_index_ = 0;
DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostIteratorImpl);
};
std::vector<DropData::Metadata> DropDataToMetaData(const DropData& drop_data) {
std::vector<DropData::Metadata> metadata;
if (drop_data.text) {
metadata.push_back(DropData::Metadata::CreateForMimeType(
DropData::Kind::STRING, base::ASCIIToUTF16(ui::kMimeTypeText)));
}
if (drop_data.url.is_valid()) {
metadata.push_back(DropData::Metadata::CreateForMimeType(
DropData::Kind::STRING, base::ASCIIToUTF16(ui::kMimeTypeURIList)));
}
if (drop_data.html) {
metadata.push_back(DropData::Metadata::CreateForMimeType(
DropData::Kind::STRING, base::ASCIIToUTF16(ui::kMimeTypeHTML)));
}
// On Aura, filenames are available before drop.
for (const auto& file_info : drop_data.filenames) {
if (!file_info.path.empty()) {
metadata.push_back(DropData::Metadata::CreateForFilePath(file_info.path));
}
}
// On Android, only files' mime types are available before drop.
for (const auto& mime_type : drop_data.file_mime_types) {
if (!mime_type.empty()) {
metadata.push_back(DropData::Metadata::CreateForMimeType(
DropData::Kind::FILENAME, mime_type));
}
}
for (const auto& file_system_file : drop_data.file_system_files) {
if (!file_system_file.url.is_empty()) {
metadata.push_back(
DropData::Metadata::CreateForFileSystemUrl(file_system_file.url));
}
}
for (const auto& custom_data_item : drop_data.custom_data) {
metadata.push_back(DropData::Metadata::CreateForMimeType(
DropData::Kind::STRING, custom_data_item.first));
}
return metadata;
}
class UnboundWidgetInputHandler : public blink::mojom::WidgetInputHandler {
public:
void SetFocus(bool focused) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void MouseCaptureLost() override {
DLOG(WARNING) << "Input request on unbound interface";
}
void SetEditCommandsForNextKeyEvent(
std::vector<blink::mojom::EditCommandPtr> commands) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void CursorVisibilityChanged(bool visible) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void ImeSetComposition(const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& range,
int32_t start,
int32_t end) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void ImeCommitText(const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& range,
int32_t relative_cursor_position,
ImeCommitTextCallback callback) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void ImeFinishComposingText(bool keep_selection) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void RequestTextInputStateUpdate() override {
DLOG(WARNING) << "Input request on unbound interface";
}
void RequestCompositionUpdates(bool immediate_request,
bool monitor_request) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void DispatchEvent(std::unique_ptr<blink::WebCoalescedInputEvent> event,
DispatchEventCallback callback) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void DispatchNonBlockingEvent(
std::unique_ptr<blink::WebCoalescedInputEvent> event) override {
DLOG(WARNING) << "Input request on unbound interface";
}
void WaitForInputProcessed(WaitForInputProcessedCallback callback) override {
DLOG(WARNING) << "Input request on unbound interface";
}
#if defined(OS_ANDROID)
void AttachSynchronousCompositor(
mojo::PendingRemote<blink::mojom::SynchronousCompositorControlHost>
control_host,
mojo::PendingAssociatedRemote<blink::mojom::SynchronousCompositorHost>
host,
mojo::PendingAssociatedReceiver<blink::mojom::SynchronousCompositor>
compositor_request) override {
NOTREACHED() << "Input request on unbound interface";
}
#endif
void GetFrameWidgetInputHandler(
mojo::PendingAssociatedReceiver<blink::mojom::FrameWidgetInputHandler>
request) override {
NOTREACHED() << "Input request on unbound interface";
}
};
base::LazyInstance<UnboundWidgetInputHandler>::Leaky g_unbound_input_handler =
LAZY_INSTANCE_INITIALIZER;
} // namespace
///////////////////////////////////////////////////////////////////////////////
// RenderWidgetHostImpl
// static
std::unique_ptr<RenderWidgetHostImpl> RenderWidgetHostImpl::Create(
FrameTree* frame_tree,
RenderWidgetHostDelegate* delegate,
AgentSchedulingGroupHost& agent_scheduling_host,
int32_t routing_id,
bool hidden,
bool renderer_initiated_creation,
std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue) {
return base::WrapUnique(new RenderWidgetHostImpl(
frame_tree,
/*self_owned=*/false, delegate, agent_scheduling_host, routing_id, hidden,
renderer_initiated_creation, std::move(frame_token_message_queue)));
}
// static
RenderWidgetHostImpl* RenderWidgetHostImpl::CreateSelfOwned(
FrameTree* frame_tree,
RenderWidgetHostDelegate* delegate,
AgentSchedulingGroupHost& agent_scheduling_host,
int32_t routing_id,
bool hidden,
std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue) {
return new RenderWidgetHostImpl(frame_tree, /*self_owned=*/true, delegate,
agent_scheduling_host, routing_id, hidden,
/*renderer_initiated_creation=*/true,
std::move(frame_token_message_queue));
}
RenderWidgetHostImpl::RenderWidgetHostImpl(
FrameTree* frame_tree,
bool self_owned,
RenderWidgetHostDelegate* delegate,
AgentSchedulingGroupHost& agent_scheduling_group,
int32_t routing_id,
bool hidden,
bool renderer_initiated_creation,
std::unique_ptr<FrameTokenMessageQueue> frame_token_message_queue)
: frame_tree_(frame_tree),
self_owned_(self_owned),
waiting_for_init_(renderer_initiated_creation),
delegate_(delegate),
agent_scheduling_group_(agent_scheduling_group),
routing_id_(routing_id),
clock_(base::DefaultTickClock::GetInstance()),
is_hidden_(hidden),
latency_tracker_(delegate_),
hung_renderer_delay_(kHungRendererDelay),
new_content_rendering_delay_(kNewContentRenderingDelay),
frame_token_message_queue_(std::move(frame_token_message_queue)),
render_frame_metadata_provider_(
#if defined(OS_MAC)
ui::WindowResizeHelperMac::Get()->task_runner(),
#else
base::ThreadTaskRunnerHandle::Get(),
#endif
frame_token_message_queue_.get()),
frame_sink_id_(base::checked_cast<uint32_t>(
agent_scheduling_group.GetProcess()->GetID()),
base::checked_cast<uint32_t>(routing_id_)),
power_mode_input_voter_(
power_scheduler::PowerModeArbiter::GetInstance()->NewVoter(
"PowerModeVoter.Input")),
power_mode_loading_voter_(
power_scheduler::PowerModeArbiter::GetInstance()->NewVoter(
"PowerModeVoter.Loading")) {
DCHECK(frame_token_message_queue_);
frame_token_message_queue_->Init(this);
#if defined(OS_MAC)
fling_scheduler_ = std::make_unique<FlingSchedulerMac>(this);
#elif defined(OS_ANDROID)
fling_scheduler_ = std::make_unique<FlingSchedulerAndroid>(this);
#else
fling_scheduler_ = std::make_unique<FlingScheduler>(this);
#endif
CHECK(delegate_);
CHECK_NE(MSG_ROUTING_NONE, routing_id_);
DCHECK(base::ThreadPoolInstance::Get())
<< "Ref. Prerequisite section of post_task.h";
std::pair<RoutingIDWidgetMap::iterator, bool> result =
g_routing_id_widget_map.Get().insert(std::make_pair(
RenderWidgetHostID(agent_scheduling_group.GetProcess()->GetID(),
routing_id_),
this));
CHECK(result.second) << "Inserting a duplicate item!";
// Self-owned RenderWidgetHost lifetime is managed by the renderer process.
// To avoid leaking any instance. They self-delete when their renderer process
// is gone.
if (self_owned_)
agent_scheduling_group.GetProcess()->AddObserver(this);
render_process_blocked_state_changed_subscription_ =
agent_scheduling_group.GetProcess()->RegisterBlockStateChangedCallback(
base::BindRepeating(
&RenderWidgetHostImpl::RenderProcessBlockedStateChanged,
base::Unretained(this)));
agent_scheduling_group.GetProcess()->AddPriorityClient(this);
SetupInputRouter();
const auto* command_line = base::CommandLine::ForCurrentProcess();
if (!command_line->HasSwitch(switches::kDisableNewContentRenderingTimeout)) {
new_content_rendering_timeout_ = std::make_unique<TimeoutMonitor>(
base::BindRepeating(&RenderWidgetHostImpl::ClearDisplayedGraphics,
weak_factory_.GetWeakPtr()));
}
delegate_->RenderWidgetCreated(this);
render_frame_metadata_provider_.AddObserver(this);
}
RenderWidgetHostImpl::~RenderWidgetHostImpl() {
CHECK(!self_owned_);
render_frame_metadata_provider_.RemoveObserver(this);
if (!destroyed_)
Destroy(false);
}
// static
RenderWidgetHost* RenderWidgetHost::FromID(
int32_t process_id,
int32_t routing_id) {
return RenderWidgetHostImpl::FromID(process_id, routing_id);
}
// static
RenderWidgetHostImpl* RenderWidgetHostImpl::FromID(
int32_t process_id,
int32_t routing_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
RoutingIDWidgetMap* widgets = g_routing_id_widget_map.Pointer();
auto it = widgets->find(RenderWidgetHostID(process_id, routing_id));
return it != widgets->end() ? it->second : nullptr;
}
// static
std::unique_ptr<RenderWidgetHostIterator>
RenderWidgetHost::GetRenderWidgetHosts() {
auto hosts = std::make_unique<RenderWidgetHostIteratorImpl>();
for (auto& it : g_routing_id_widget_map.Get()) {
RenderWidgetHostImpl* widget = it.second;
RenderWidgetHostOwnerDelegate* owner_delegate = widget->owner_delegate();
// If the widget is not for a main frame, add to |hosts|.
if (!owner_delegate) {
hosts->Add(widget);
continue;
}
// If the widget is for a main frame, only add if there is a RenderWidget in
// the renderer process. When this is false, there is no main RenderFrame
// and so no RenderWidget for this RenderWidgetHost.
if (owner_delegate->IsMainFrameActive())
hosts->Add(widget);
}
return std::move(hosts);
}
// static
std::unique_ptr<RenderWidgetHostIterator>
RenderWidgetHostImpl::GetAllRenderWidgetHosts() {
auto hosts = std::make_unique<RenderWidgetHostIteratorImpl>();
for (auto& it : g_routing_id_widget_map.Get())
hosts->Add(it.second);
return std::move(hosts);
}
// static
RenderWidgetHostImpl* RenderWidgetHostImpl::From(RenderWidgetHost* rwh) {
return static_cast<RenderWidgetHostImpl*>(rwh);
}
void RenderWidgetHostImpl::SetView(RenderWidgetHostViewBase* view) {
synthetic_gesture_controller_.reset();
if (view) {
view_ = view->GetWeakPtr();
if (!create_frame_sink_callback_.is_null())
std::move(create_frame_sink_callback_).Run(view_->GetFrameSinkId());
// SendScreenRects() and SynchronizeVisualProperties() delay until a view
// is set, however we come here with a newly created `view` that is not
// initialized and ready to be used.
// The portal codepath comes here because it replaces the view while the
// renderer-side widget is already created. In that case the renderer will
// hear about geometry changes from the view being moved/resized as a result
// of the change.
// Speculative RenderViews also end up setting a `view` after creating the
// renderer-side widget, as per https://crbug.com/1161585. That path must
// be responsible for updating the renderer geometry itself, which it does
// because it will start hidden, and will send them when shown.
// TODO(crbug.com/1161585): Once RendererWidgetCreated() is always called
// with a non-null `view` then this comment can go away. :)
} else {
view_.reset();
}
}
// static
const base::TimeDelta RenderWidgetHostImpl::kActivationNotificationExpireTime =
base::TimeDelta::FromMilliseconds(300);
RenderProcessHost* RenderWidgetHostImpl::GetProcess() {
return agent_scheduling_group_.GetProcess();
}
int RenderWidgetHostImpl::GetRoutingID() {
return routing_id_;
}
RenderWidgetHostViewBase* RenderWidgetHostImpl::GetView() {
return view_.get();
}
const viz::FrameSinkId& RenderWidgetHostImpl::GetFrameSinkId() {
return frame_sink_id_;
}
void RenderWidgetHostImpl::SendScreenRects() {
// Sending screen rects are deferred until we have a connection to a
// renderer-side Widget to send them to. Further, if we're waiting for the
// renderer to show (aka Init()) the widget then we defer sending updates
// until the renderer is ready.
if (!renderer_widget_created_ || waiting_for_init_)
return;
// TODO(danakj): The `renderer_widget_created_` flag is set to true for
// widgets owned by inactive RenderViewHosts, even though there is no widget
// created. In that case the `view_` will not be created.
if (!view_)
return;
// Throttle to one update at a time.
if (waiting_for_screen_rects_ack_)
return;
if (is_hidden_) {
// On GTK, this comes in for backgrounded tabs. Ignore, to match what
// happens on Win & Mac, and when the view is shown it'll call this again.
return;
}
last_view_screen_rect_ = view_->GetViewBounds();
last_window_screen_rect_ = view_->GetBoundsInRootWindow();
blink_widget_->UpdateScreenRects(
last_view_screen_rect_, last_window_screen_rect_,
base::BindOnce(&RenderWidgetHostImpl::OnUpdateScreenRectsAck,
weak_factory_.GetWeakPtr()));
waiting_for_screen_rects_ack_ = true;
}
void RenderWidgetHostImpl::SetFrameDepth(unsigned int depth) {
if (frame_depth_ == depth)
return;
frame_depth_ = depth;
UpdatePriority();
}
void RenderWidgetHostImpl::SetIntersectsViewport(bool intersects) {
if (intersects_viewport_ == intersects)
return;
intersects_viewport_ = intersects;
UpdatePriority();
}
void RenderWidgetHostImpl::UpdatePriority() {
if (!destroyed_)
GetProcess()->UpdateClientPriority(this);
}
void RenderWidgetHostImpl::BindWidgetInterfaces(
mojo::PendingAssociatedReceiver<blink::mojom::WidgetHost> widget_host,
mojo::PendingAssociatedRemote<blink::mojom::Widget> widget) {
// This API may get called on a RenderWidgetHostImpl from a
// reused RenderViewHostImpl so we need to ensure old channels are dropped.
// TODO(dcheng): Rather than resetting here, reset when the process goes away.
blink_widget_host_receiver_.reset();
blink_widget_.reset();
widget_input_handler_.reset();
blink_widget_host_receiver_.Bind(std::move(widget_host));
blink_widget_.Bind(std::move(widget));
}
void RenderWidgetHostImpl::BindPopupWidgetInterface(
mojo::PendingAssociatedReceiver<blink::mojom::PopupWidgetHost>
popup_widget_host) {
blink_popup_widget_host_receiver_.reset();
blink_popup_widget_host_receiver_.Bind(std::move(popup_widget_host));
}
void RenderWidgetHostImpl::BindFrameWidgetInterfaces(
mojo::PendingAssociatedReceiver<blink::mojom::FrameWidgetHost>
frame_widget_host,
mojo::PendingAssociatedRemote<blink::mojom::FrameWidget> frame_widget) {
// This API may get called on a RenderWidgetHostImpl from a
// reused RenderViewHostImpl so we need to ensure old channels are dropped.
// TODO(dcheng): Rather than resetting here, reset when the process goes away.
blink_frame_widget_host_receiver_.reset();
blink_frame_widget_.reset();
frame_widget_input_handler_.reset();
input_target_client_.reset();
widget_compositor_.reset();
blink_frame_widget_host_receiver_.Bind(std::move(frame_widget_host));
blink_frame_widget_.Bind(std::move(frame_widget));
}
void RenderWidgetHostImpl::RendererWidgetCreated(bool for_frame_widget) {
DCHECK(GetProcess()->IsInitializedAndNotDead());
renderer_widget_created_ = true;
blink_widget_->GetWidgetInputHandler(
widget_input_handler_.BindNewPipeAndPassReceiver(),
input_router_->BindNewHost());
if (for_frame_widget) {
widget_input_handler_->GetFrameWidgetInputHandler(
frame_widget_input_handler_.BindNewEndpointAndPassReceiver());
blink_frame_widget_->BindInputTargetClient(
input_target_client_.BindNewPipeAndPassReceiver());
}
// TODO(crbug.com/1161585): The `view_` can be null. :( Speculative
// RenderViews along with the main frame and its widget before the
// RenderWidgetHostView is created. Normally the RenderWidgetHostView should
// come first. Historically, unit tests also set things up in the wrong order
// and could get here with a null, but that is no longer the case (hopefully
// that remains true).
if (view_)
view_->OnRendererWidgetCreated();
// These two methods avoid running until `renderer_widget_created_` is true,
// so we run them here after we set it.
SendScreenRects();
SynchronizeVisualProperties();
}
void RenderWidgetHostImpl::Init() {
DCHECK(renderer_widget_created_);
DCHECK(waiting_for_init_);
waiting_for_init_ = false;
// These two methods avoid running while we are `waiting_for_init_`, so we
// run them here after we clear it.
SendScreenRects();
SynchronizeVisualProperties();
// Show/Hide state is not given to the renderer while we are
// `waiting_for_init_`, but Init() signals that the renderer is ready to
// receive them. This closure will inform the renderer that the widget is
// shown.
if (pending_show_closure_)
std::move(pending_show_closure_).Run();
}
bool RenderWidgetHostImpl::ShouldShowStaleContentOnEviction() {
return delegate_ && delegate_->ShouldShowStaleContentOnEviction();
}
void RenderWidgetHostImpl::ShutdownAndDestroyWidget(bool also_delete) {
CancelKeyboardLock();
RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult::kElementDestroyed);
Destroy(also_delete);
}
void RenderWidgetHostImpl::SetIsLoading(bool is_loading) {
is_loading_ = is_loading;
power_mode_loading_voter_->VoteFor(is_loading_
? power_scheduler::PowerMode::kLoading
: power_scheduler::PowerMode::kIdle);
if (view_)
view_->SetIsLoading(is_loading);
}
void RenderWidgetHostImpl::WasHidden() {
if (is_hidden_)
return;
RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult::kWrongDocument);
TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::WasHidden");
is_hidden_ = true;
// Unthrottle SynchronizeVisualProperties IPCs so that the first call after
// show goes through immediately.
visual_properties_ack_pending_ = false;
// Don't bother reporting hung state when we aren't active.
StopInputEventAckTimeout();
// Show/Hide state is not sent to the renderer when it has requested for us to
// wait until it requests them via Init().
if (pending_show_closure_) {
pending_show_closure_.Reset();
} else {
// Widgets start out hidden, so we must have previously been shown to get
// here, and we'd have a `pending_show_closure_` if we are
// `waiting_for_init_`.
DCHECK(!waiting_for_init_);
blink_widget_->WasHidden();
}
// Tell the RenderProcessHost we were hidden.
GetProcess()->UpdateClientPriority(this);
bool is_visible = false;
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
Source<RenderWidgetHost>(this), Details<bool>(&is_visible));
for (auto& observer : observers_)
observer.RenderWidgetHostVisibilityChanged(this, false);
}
void RenderWidgetHostImpl::WasShown(
blink::mojom::RecordContentToVisibleTimeRequestPtr
record_tab_switch_time_request) {
if (!is_hidden_)
return;
TRACE_EVENT_WITH_FLOW0("renderer_host", "RenderWidgetHostImpl::WasShown",
routing_id_, TRACE_EVENT_FLAG_FLOW_OUT);
is_hidden_ = false;
// If we navigated in background, clear the displayed graphics of the
// previous page before going visible.
ForceFirstFrameAfterNavigationTimeout();
RestartInputEventAckTimeoutIfNecessary();
// This methods avoids running when the widget is hidden, so we run it here
// once it is no longer hidden.
SendScreenRects();
// SendScreenRects() and SynchronizeVisualProperties() should happen
// together as one message, but we send them back-to-back for now so that
// all state gets to the renderer as close together as possible.
SynchronizeVisualProperties();
auto show_request_timestamp = record_tab_switch_time_request
? base::TimeTicks::Now()
: base::TimeTicks();
if (!waiting_for_init_) {
blink_widget_->WasShown(show_request_timestamp, view_->is_evicted(),
std::move(record_tab_switch_time_request));
} else {
pending_show_closure_ = base::BindOnce(
&RenderWidgetHostImpl::RunPendingWasShown, base::Unretained(this),
show_request_timestamp, view_->is_evicted(),
std::move(record_tab_switch_time_request));
}
view_->reset_is_evicted();
GetProcess()->UpdateClientPriority(this);
bool is_visible = true;
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_VISIBILITY_CHANGED,
Source<RenderWidgetHost>(this), Details<bool>(&is_visible));
for (auto& observer : observers_)
observer.RenderWidgetHostVisibilityChanged(this, true);
// It's possible for our size to be out of sync with the renderer. The
// following is one case that leads to this:
// 1. SynchronizeVisualProperties -> Send
// WidgetMsg_SynchronizeVisualProperties
// to render.
// 2. SynchronizeVisualProperties -> do nothing as
// sync_visual_props_ack_pending_ is true
// 3. WasHidden
// By invoking SynchronizeVisualProperties the renderer is updated as
// necessary. SynchronizeVisualProperties does nothing if the sizes are
// already in sync.
//
// TODO: ideally blink::mojom::Widget's WasShown would take a size. This way,
// the renderer could handle both the restore and resize at once. This isn't
// that big a deal as RenderWidget::WasShown delays updating, so that the
// resize from SynchronizeVisualProperties is usually processed before the
// renderer is painted.
SynchronizeVisualProperties();
}
void RenderWidgetHostImpl::RunPendingWasShown(
base::TimeTicks show_request_timestamp,
bool is_evicted,
blink::mojom::RecordContentToVisibleTimeRequestPtr
record_tab_switch_time_request) {
DCHECK(blink_widget_.is_bound());
blink_widget_->WasShown(show_request_timestamp, is_evicted,
std::move(record_tab_switch_time_request));
}
#if defined(OS_ANDROID)
void RenderWidgetHostImpl::SetImportance(ChildProcessImportance importance) {
if (importance_ == importance)
return;
importance_ = importance;
GetProcess()->UpdateClientPriority(this);
}
void RenderWidgetHostImpl::AddImeInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) {
if (!ime_input_event_observers_.HasObserver(observer)) {
ime_input_event_observers_.AddObserver(observer);
}
}
void RenderWidgetHostImpl::RemoveImeInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) {
ime_input_event_observers_.RemoveObserver(observer);
}
#endif
blink::VisualProperties RenderWidgetHostImpl::GetInitialVisualProperties() {
blink::VisualProperties initial_props = GetVisualProperties();
// A RenderWidget being created in the renderer means the browser should
// reset any state that may be set for the previous RenderWidget but which
// will be incorrect with a fresh RenderWidget.
ResetStateForCreatedRenderWidget(initial_props);
return initial_props;
}
blink::VisualProperties RenderWidgetHostImpl::GetVisualProperties() {
// This is only called while the RenderWidgetHost is attached to a delegate
// still.
DCHECK(delegate_);
// When the renderer process is gone, there's no need for VisualProperties
// which are to be sent to the renderer process.
DCHECK(view_);
// Differentiate between widgets for frames vs widgets for popups/pepper.
// Historically this was done by finding the RenderViewHost for the widget,
// but a child local root would not convert to a RenderViewHost but is for a
// frame.
const bool is_frame_widget = !self_owned_;
blink::VisualProperties visual_properties;
// Note: Later in this method, ScreenInfo rects might be overridden!
visual_properties.screen_infos = GetScreenInfos();
auto& current_screen_info = visual_properties.screen_infos.mutable_current();
visual_properties.is_fullscreen_granted = delegate_->IsFullscreen();
if (is_frame_widget)
visual_properties.display_mode = delegate_->GetDisplayMode();
else
visual_properties.display_mode = blink::mojom::DisplayMode::kBrowser;
visual_properties.zoom_level = delegate_->GetPendingPageZoomLevel();
RenderViewHostDelegateView* rvh_delegate_view = delegate_->GetDelegateView();
DCHECK(rvh_delegate_view);
visual_properties.browser_controls_params.browser_controls_shrink_blink_size =
rvh_delegate_view->DoBrowserControlsShrinkRendererSize();
visual_properties.browser_controls_params
.animate_browser_controls_height_changes =
rvh_delegate_view->ShouldAnimateBrowserControlsHeightChanges();
visual_properties.browser_controls_params
.only_expand_top_controls_at_page_top =
rvh_delegate_view->OnlyExpandTopControlsAtPageTop();
float top_controls_height = rvh_delegate_view->GetTopControlsHeight();
float top_controls_min_height = rvh_delegate_view->GetTopControlsMinHeight();
float bottom_controls_height = rvh_delegate_view->GetBottomControlsHeight();
float bottom_controls_min_height =
rvh_delegate_view->GetBottomControlsMinHeight();
float browser_controls_dsf_multiplier = 1.f;
// The top and bottom control sizes are physical pixels but the IPC wants
// DIPs *when not using page zoom for DSF* because blink layout is working
// in DIPs then.
if (!IsUseZoomForDSFEnabled())
browser_controls_dsf_multiplier = current_screen_info.device_scale_factor;
visual_properties.browser_controls_params.top_controls_height =
top_controls_height / browser_controls_dsf_multiplier;
visual_properties.browser_controls_params.top_controls_min_height =
top_controls_min_height / browser_controls_dsf_multiplier;
visual_properties.browser_controls_params.bottom_controls_height =
bottom_controls_height / browser_controls_dsf_multiplier;
visual_properties.browser_controls_params.bottom_controls_min_height =
bottom_controls_min_height / browser_controls_dsf_multiplier;
visual_properties.auto_resize_enabled = auto_resize_enabled_;
visual_properties.min_size_for_auto_resize = min_size_for_auto_resize_;
visual_properties.max_size_for_auto_resize = max_size_for_auto_resize_;
visual_properties.new_size = view_->GetRequestedRendererSize();
// While in fullscreen mode, set the ScreenInfo rects to match the view size.
// This is needed because web authors often assume screen.width/height are
// identical to window.innerWidth/innerHeight while a page is in fullscreen,
// and this is not always true for some browser UI features.
// https://crbug.com/1060795
if (visual_properties.is_fullscreen_granted) {
current_screen_info.rect.set_size(visual_properties.new_size);
current_screen_info.available_rect.set_size(visual_properties.new_size);
}
// This widget is for a frame that is the main frame of the outermost frame
// tree. That makes it the top-most frame. OR this is a non-frame widget.
const bool is_top_most_widget = !view_->IsRenderWidgetHostViewChildFrame();
// This widget is for a frame, but not the main frame of its frame tree.
const bool is_child_frame_widget =
view_->IsRenderWidgetHostViewChildFrame() && !owner_delegate_;
// These properties come from the main frame RenderWidget and flow down the
// tree of RenderWidgets. Some properties are global across all nested
// WebContents/frame trees. Some properties are global only within their
// WebContents/frame tree.
//
// Each child frame RenderWidgetHost that inherits values gets them from their
// parent RenderWidget in the renderer process. It then passes them along to
// its own RenderWidget, and the process repeats down the tree.
//
// The plumbing goes:
// 1. Browser: parent RenderWidgetHost
// 2. IPC -> blink::mojom::Widget::UpdateVisualProperties
// 3. Renderer A: parent RenderWidget
// (sometimes blink involved)
// 4. Renderer A: child RenderFrameProxy
// 5. IPC -> FrameHostMsg_SynchronizeVisualProperties
// 6. Browser: child CrossProcessFrameConnector
// 7. Browser: parent RenderWidgetHost (We're here if |is_child_frame|.)
// 8. IPC -> blink::mojom::Widget::UpdateVisualProperties
// 9. Renderer B: child RenderWidget
// This property comes from the top-level main frame.
if (is_top_most_widget) {
visual_properties.compositor_viewport_pixel_rect =
gfx::Rect(view_->GetCompositorViewportPixelSize());
} else {
visual_properties.compositor_viewport_pixel_rect =
properties_from_parent_local_root_.compositor_viewport;
if (!IsUseZoomForDSFEnabled()) {
// If UseZoomForDSF is not used, the coordinates were not scaled by DSF
// when coming from the renderer.
visual_properties.compositor_viewport_pixel_rect =
gfx::ScaleToEnclosingRect(
visual_properties.compositor_viewport_pixel_rect,
current_screen_info.device_scale_factor);
}
}
// These properties come from the top-level main frame's renderer. The
// top-level main frame in the browser doesn't specify a value.
if (!is_top_most_widget) {
visual_properties.page_scale_factor =
properties_from_parent_local_root_.page_scale_factor;
visual_properties.is_pinch_gesture_active =
properties_from_parent_local_root_.is_pinch_gesture_active;
}
visual_properties.compositing_scale_factor =
properties_from_parent_local_root_.compositing_scale_factor;
// The |visible_viewport_size| is affected by auto-resize which is magical and
// tricky.
//
// For the top-level main frame, auto resize ends up asynchronously resizing
// the widget's RenderWidgetHostView and the size will show up there, so
// nothing needs to be written in here.
//
// For nested main frames, auto resize happens in the renderer so we need to
// store the size on this class and use that. When auto-resize is not enabled
// we use the size of the nested main frame's RenderWidgetHostView.
//
// For child frames, we always use the value provided from the parent.
//
// For non-frame widgets, there is no auto-resize and we behave like the top-
// level main frame.
gfx::Size viewport;
if (is_child_frame_widget)
viewport = properties_from_parent_local_root_.visible_viewport_size;
else
viewport = view_->GetVisibleViewportSize();
visual_properties.visible_viewport_size = viewport;
// The root widget's window segments are computed here - child frames just
// use the value provided from the parent.
if (is_top_most_widget) {
base::Optional<DisplayFeature> display_feature = view_->GetDisplayFeature();
if (display_feature) {
visual_properties.root_widget_window_segments =
display_feature->ComputeWindowSegments(
visual_properties.visible_viewport_size);
} else {
visual_properties.root_widget_window_segments = {
gfx::Rect(visual_properties.visible_viewport_size)};
}
} else {
visual_properties.root_widget_window_segments =
properties_from_parent_local_root_.root_widget_window_segments;
}
visual_properties.capture_sequence_number = view_->GetCaptureSequenceNumber();
// TODO(ccameron): GetLocalSurfaceId is not synchronized with the device
// scale factor of the surface. Fix this.
viz::LocalSurfaceId local_surface_id = view_->GetLocalSurfaceId();
if (local_surface_id.is_valid()) {
visual_properties.local_surface_id = local_surface_id;
}
if (screen_orientation_type_for_testing_) {
current_screen_info.orientation_type =
*screen_orientation_type_for_testing_;
}
if (screen_orientation_angle_for_testing_) {
current_screen_info.orientation_angle =
*screen_orientation_angle_for_testing_;
}
return visual_properties;
}
bool RenderWidgetHostImpl::UpdateVisualProperties(bool propagate) {
return SynchronizeVisualProperties(false, propagate);
}
bool RenderWidgetHostImpl::SynchronizeVisualProperties() {
return SynchronizeVisualProperties(false, true);
}
bool RenderWidgetHostImpl::SynchronizeVisualPropertiesIgnoringPendingAck() {
visual_properties_ack_pending_ = false;
return SynchronizeVisualProperties();
}
bool RenderWidgetHostImpl::SynchronizeVisualProperties(
bool scroll_focused_node_into_view,
bool propagate) {
// If the RenderViewHost is inactive, then there is no RenderWidget that can
// receive visual properties yet, even though we are setting them on the
// browser side. Wait until there is a local main frame with a RenderWidget
// to receive these before sending the visual properties.
//
// When the RenderViewHost becomes active, a SynchronizeVisualProperties()
// call does not explicitly get made. That is because RenderWidgets for frames
// are created and initialized with a valid VisualProperties already, and once
// their initial navigation completes (and they are in the foreground) the
// RenderWidget will be shown, which means a VisualProperties update happens
// at the time where compositing begins.
//
// Note that this drops |scroll_focused_node_into_view| but this value does
// not make sense for an inactive RenderViewHost's top level RenderWidgetHost,
// because there is no frames associated with the RenderWidget when it is
// inactive, so there is no focused node, or anything to scroll and display.
if (owner_delegate_ && !owner_delegate_->IsMainFrameActive())
return false;
// Sending VisualProperties are deferred until we have a connection to a
// renderer-side Widget to send them to. Further, if we're waiting for the
// renderer to show (aka Init()) the widget then we defer sending updates
// until the renderer is ready.
if (!renderer_widget_created_ || waiting_for_init_)
return false;
// TODO(danakj): The `renderer_widget_created_` flag is set to true for
// widgets owned by inactive RenderViewHosts, even though there is no widget
// created. In that case the `view_` will not be created.
if (!view_)
return false;
// Throttle to one update at a time.
if (visual_properties_ack_pending_)
return false;
// Skip if the |delegate_| has already been detached because it's web contents
// is being deleted, or if LocalSurfaceId is suppressed, as we are
// first updating our internal state from a child's request, before
// subsequently merging ids to send.
if (!GetProcess()->IsInitializedAndNotDead() || !view_->HasSize() ||
!delegate_ || surface_id_allocation_suppressed_ ||
!view_->CanSynchronizeVisualProperties()) {
return false;
}
auto visual_properties = std::make_unique<blink::VisualProperties>();
*visual_properties = GetVisualProperties();
if (!StoredVisualPropertiesNeedsUpdate(old_visual_properties_,
*visual_properties))
return false;
visual_properties->scroll_focused_node_into_view =
scroll_focused_node_into_view;
if (propagate)
blink_widget_->UpdateVisualProperties(*visual_properties);
bool width_changed =
!old_visual_properties_ || old_visual_properties_->new_size.width() !=
visual_properties->new_size.width();
// WidgetBase::UpdateSurfaceAndScreenInfo uses similar logic to detect
// orientation changes on the display currently showing the widget.
// TODO(lanwei): clean the duplicate code.
if (visual_properties && old_visual_properties_) {
const auto& old_screen_info =
old_visual_properties_->screen_infos.current();
const auto& screen_info = visual_properties->screen_infos.current();
bool orientation_changed =
old_screen_info.orientation_angle != screen_info.orientation_angle ||
old_screen_info.orientation_type != screen_info.orientation_type;
if (orientation_changed)
delegate_->DidChangeScreenOrientation();
}
// If we do not have a valid viz::LocalSurfaceId then we are a child frame
// waiting on the id to be propagated from our parent. We cannot create a hash
// for tracing of an invalid id.
//
// TODO(jonross): Untangle startup so that we don't have this invalid partial
// state. (https://crbug.com/1185286) (https://crbug.com/419087)
if (visual_properties->local_surface_id.has_value()) {
TRACE_EVENT_WITH_FLOW2(
TRACE_DISABLED_BY_DEFAULT("viz.surface_id_flow"),
"RenderWidgetHostImpl::SynchronizeVisualProperties send message",
visual_properties->local_surface_id->submission_trace_id(),
TRACE_EVENT_FLAG_FLOW_OUT, "message",
"WidgetMsg_SynchronizeVisualProperties", "local_surface_id",
visual_properties->local_surface_id->ToString());
}
visual_properties_ack_pending_ =
DoesVisualPropertiesNeedAck(old_visual_properties_, *visual_properties);
old_visual_properties_ = std::move(visual_properties);
// Warning: |visual_properties| invalid after this point.
if (delegate_) {
delegate_->RenderWidgetWasResized(this, width_changed);
}
return true;
}
void RenderWidgetHostImpl::GotFocus() {
Focus();
if (owner_delegate_)
owner_delegate_->RenderWidgetGotFocus();
}
void RenderWidgetHostImpl::LostFocus() {
Blur();
if (owner_delegate_)
owner_delegate_->RenderWidgetLostFocus();
}
void RenderWidgetHostImpl::Focus() {
// TODO(crbug.com/689777): This sends it to the main frame RenderWidgetHost
// should it be going to the local root instead?
RenderWidgetHostImpl* focused_widget =
delegate_ ? delegate_->GetRenderWidgetHostWithPageFocus() : nullptr;
if (!focused_widget)
focused_widget = this;
focused_widget->SetPageFocus(true);
}
void RenderWidgetHostImpl::Blur() {
// TODO(crbug.com/689777): This sends it to the main frame RenderWidgetHost
// should it be going to the local root instead?
RenderWidgetHostImpl* focused_widget =
delegate_ ? delegate_->GetRenderWidgetHostWithPageFocus() : nullptr;
if (!focused_widget)
focused_widget = this;
focused_widget->SetPageFocus(false);
}
void RenderWidgetHostImpl::FlushForTesting() {
if (widget_input_handler_)
return widget_input_handler_.FlushForTesting();
}
void RenderWidgetHostImpl::SetPageFocus(bool focused) {
is_focused_ = focused;
// Portals should never get page focus.
DCHECK(!delegate_ || !delegate_->IsPortal() || !focused);
if (!focused) {
// If there is a pending mouse lock request, we don't want to reject it at
// this point. The user can switch focus back to this view and approve the
// request later.
if (IsMouseLocked())
view_->UnlockMouse();
if (IsKeyboardLocked())
UnlockKeyboard();
if (auto* touch_emulator = GetExistingTouchEmulator())
touch_emulator->CancelTouch();
} else if (keyboard_lock_allowed_) {
LockKeyboard();
}
GetWidgetInputHandler()->SetFocus(focused);
// Also send page-level focus state to other SiteInstances involved in
// rendering the current FrameTree, if this widget is for a main frame.
// TODO(crbug.com/689777): We should be telling the delegate which
// RenderWidgetHost was focused (if we send it to the focused one instead
// of the main frame in order to order it correctly with other input events),
// so that the delegate can propagate it to all other WebViews based on
// where this RenderWidgetHost lives.
if (owner_delegate_ && delegate_)
delegate_->ReplicatePageFocus(focused);
}
void RenderWidgetHostImpl::LostCapture() {
if (auto* touch_emulator = GetExistingTouchEmulator())
touch_emulator->CancelTouch();
GetWidgetInputHandler()->MouseCaptureLost();
if (delegate_)
delegate_->LostCapture(this);
}
void RenderWidgetHostImpl::SetActive(bool active) {
const bool is_frame_widget = owner_delegate_;
if (is_frame_widget)
blink_frame_widget_->SetActive(active);
}
void RenderWidgetHostImpl::LostMouseLock() {
if (delegate_)
delegate_->LostMouseLock(this);
}
void RenderWidgetHostImpl::SendMouseLockLost() {
mouse_lock_context_.reset();
}
void RenderWidgetHostImpl::ViewDestroyed() {
CancelKeyboardLock();
RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult::kElementDestroyed);
// TODO(evanm): tracking this may no longer be necessary;
// eliminate this function if so.
SetView(nullptr);
}
bool RenderWidgetHostImpl::RequestRepaintForTesting() {
if (!view_)
return false;
return view_->RequestRepaintForTesting();
}
void RenderWidgetHostImpl::RenderProcessBlockedStateChanged(bool blocked) {
if (blocked)
StopInputEventAckTimeout();
else
RestartInputEventAckTimeoutIfNecessary();
}
void RenderWidgetHostImpl::StartInputEventAckTimeout() {
if (ShouldDisableHangMonitor())
return;
if (!input_event_ack_timeout_.IsRunning()) {
input_event_ack_timeout_.Start(
FROM_HERE, hung_renderer_delay_,
base::BindOnce(&RenderWidgetHostImpl::OnInputEventAckTimeout,
weak_factory_.GetWeakPtr()));
}
}
void RenderWidgetHostImpl::RestartInputEventAckTimeoutIfNecessary() {
if (!GetProcess()->IsBlocked() && !ShouldDisableHangMonitor() &&
in_flight_event_count_ > 0 && !is_hidden_) {
input_event_ack_timeout_.Start(
FROM_HERE, hung_renderer_delay_,
base::BindOnce(&RenderWidgetHostImpl::OnInputEventAckTimeout,
weak_factory_.GetWeakPtr()));
}
}
bool RenderWidgetHostImpl::IsCurrentlyUnresponsive() {
return is_unresponsive_;
}
void RenderWidgetHostImpl::StopInputEventAckTimeout() {
input_event_ack_timeout_.Stop();
RendererIsResponsive();
}
void RenderWidgetHostImpl::DidNavigate() {
// Stop the flinging after navigating to a new page.
StopFling();
// Resize messages before navigation are not acked, so reset
// |visual_properties_ack_pending_| and make sure the next resize will be
// acked if the last resize before navigation was supposed to be acked.
visual_properties_ack_pending_ = false;
if (view_)
view_->DidNavigate();
if (!new_content_rendering_timeout_)
return;
new_content_rendering_timeout_->Start(new_content_rendering_delay_);
ClearPendingUserActivation();
}
void RenderWidgetHostImpl::ForwardMouseEvent(const WebMouseEvent& mouse_event) {
// VrController moves the pointer during the scrolling and fling. To ensure
// that scroll performance is not affected we drop mouse events during
// scroll/fling.
if (GetView()->IsInVR() && (is_in_gesture_scroll_[static_cast<int>(
blink::WebGestureDevice::kTouchpad)] ||
is_in_touchpad_gesture_fling_)) {
return;
}
ForwardMouseEventWithLatencyInfo(mouse_event,
ui::LatencyInfo(ui::SourceEventType::MOUSE));
if (owner_delegate_)
owner_delegate_->RenderWidgetDidForwardMouseEvent(mouse_event);
}
void RenderWidgetHostImpl::ForwardMouseEventWithLatencyInfo(
const blink::WebMouseEvent& mouse_event,
const ui::LatencyInfo& latency) {
TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardMouseEvent", "x",
mouse_event.PositionInWidget().x(), "y",
mouse_event.PositionInWidget().y());
DCHECK_GE(mouse_event.GetType(), blink::WebInputEvent::Type::kMouseTypeFirst);
DCHECK_LE(mouse_event.GetType(), blink::WebInputEvent::Type::kMouseTypeLast);
// This is used to auto-disable accessibility if we detect user input
// but no accessibility API usage.
if (mouse_event.GetType() == blink::WebInputEvent::Type::kMouseDown)
BrowserAccessibilityStateImpl::GetInstance()->OnUserInputEvent();
for (auto& mouse_event_callback : mouse_event_callbacks_) {
if (mouse_event_callback.Run(mouse_event))
return;
}
if (IsIgnoringInputEvents())
return;
// Delegate must be non-null, due to |IsIgnoringInputEvents()| test.
if (delegate_->PreHandleMouseEvent(mouse_event))
return;
auto* touch_emulator = GetExistingTouchEmulator();
if (touch_emulator &&
touch_emulator->HandleMouseEvent(mouse_event, GetView())) {
return;
}
MouseEventWithLatencyInfo mouse_with_latency(mouse_event, latency);
DispatchInputEventWithLatencyInfo(mouse_event, &mouse_with_latency.latency);
input_router_->SendMouseEvent(
mouse_with_latency, base::BindOnce(&RenderWidgetHostImpl::OnMouseEventAck,
weak_factory_.GetWeakPtr()));
}
void RenderWidgetHostImpl::ForwardWheelEvent(
const WebMouseWheelEvent& wheel_event) {
ForwardWheelEventWithLatencyInfo(wheel_event,
ui::LatencyInfo(ui::SourceEventType::WHEEL));
}
void RenderWidgetHostImpl::ForwardWheelEventWithLatencyInfo(
const blink::WebMouseWheelEvent& wheel_event,
const ui::LatencyInfo& latency) {
TRACE_EVENT2("input", "RenderWidgetHostImpl::ForwardWheelEvent", "dx",
wheel_event.delta_x, "dy", wheel_event.delta_y);
if (IsIgnoringInputEvents())
return;
auto* touch_emulator = GetExistingTouchEmulator();
if (touch_emulator && touch_emulator->HandleMouseWheelEvent(wheel_event))
return;
MouseWheelEventWithLatencyInfo wheel_with_latency(wheel_event, latency);
DispatchInputEventWithLatencyInfo(wheel_event, &wheel_with_latency.latency);
input_router_->SendWheelEvent(wheel_with_latency);
}
void RenderWidgetHostImpl::WaitForInputProcessed(
SyntheticGestureParams::GestureType type,
content::mojom::GestureSourceType source,
base::OnceClosure callback) {
// TODO(bokan): Input can be queued and delayed in InputRouterImpl based on
// the kind of events we're getting. To be truly robust, we should wait until
// those queues are flushed before issuing this message. This will be done in
// a follow-up and is the reason for the currently unused type and source
// params. https://crbug.com/902446.
WaitForInputProcessed(std::move(callback));
}
void RenderWidgetHostImpl::WaitForInputProcessed(base::OnceClosure callback) {
// TODO(bokan): The RequestPresentationCallback mechanism doesn't seem to
// work in OOPIFs. For now, just callback immediately. Remove when fixed.
// https://crbug.com/924646.
if (GetView()->IsRenderWidgetHostViewChildFrame()) {
std::move(callback).Run();
return;
}
input_router_->WaitForInputProcessed(std::move(callback));
}
void RenderWidgetHostImpl::ForwardGestureEvent(
const blink::WebGestureEvent& gesture_event) {
ForwardGestureEventWithLatencyInfo(
gesture_event,
ui::WebInputEventTraits::CreateLatencyInfoForWebGestureEvent(
gesture_event));
}
void RenderWidgetHostImpl::ForwardGestureEventWithLatencyInfo(
const blink::WebGestureEvent& gesture_event,
const ui::LatencyInfo& latency) {
TRACE_EVENT1("input", "RenderWidgetHostImpl::ForwardGestureEvent", "type",
WebInputEvent::GetName(gesture_event.GetType()));
// This is used to auto-disable accessibility if we detect user input
// but no accessibility API usage.
if (gesture_event.GetType() == blink::WebInputEvent::Type::kGestureTapDown)
BrowserAccessibilityStateImpl::GetInstance()->OnUserInputEvent();
// Early out if necessary, prior to performing latency logic.
if (IsIgnoringInputEvents())
return;
// The gesture events must have a known source.
DCHECK_NE(gesture_event.SourceDevice(),
blink::WebGestureDevice::kUninitialized);
if (gesture_event.GetType() ==
blink::WebInputEvent::Type::kGestureScrollBegin) {
DCHECK(
!is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())]);
is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())] =
true;
scroll_peak_gpu_mem_tracker_ =
PeakGpuMemoryTracker::Create(PeakGpuMemoryTracker::Usage::SCROLL);
} else if (gesture_event.GetType() ==
blink::WebInputEvent::Type::kGestureScrollEnd) {
DCHECK(
is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())]);
is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())] =
false;
is_in_touchpad_gesture_fling_ = false;
if (view_) {
if (scroll_peak_gpu_mem_tracker_ &&
!view_->is_currently_scrolling_viewport()) {
// We start tracking peak gpu-memory usage when the initial scroll-begin
// is dispatched. However, it is possible that the scroll-begin did not
// trigger any scrolls (e.g. the page is not scrollable). In such cases,
// we do not want to report the peak-memory usage metric. So it is
// canceled here.
scroll_peak_gpu_mem_tracker_->Cancel();
}
view_->set_is_currently_scrolling_viewport(false);
}
scroll_peak_gpu_mem_tracker_ = nullptr;
} else if (gesture_event.GetType() ==
blink::WebInputEvent::Type::kGestureFlingStart) {
if (gesture_event.SourceDevice() == blink::WebGestureDevice::kTouchpad) {
// TODO(crbug.com/797322): Remove the VR specific case when motion events
// are used for Android VR event processing and VR touchpad scrolling is
// handled by sending wheel events rather than directly injecting Gesture
// Scroll Events.
if (GetView()->IsInVR()) {
// Regardless of the state of the wheel scroll latching
// WebContentsEventForwarder doesn't inject any GSE events before GFS.
DCHECK(is_in_gesture_scroll_[static_cast<int>(
gesture_event.SourceDevice())]);
// Reset the is_in_gesture_scroll since while scrolling in Android VR
// the first wheel event sent by the FlingController will cause a GSB
// generation in MouseWheelEventQueue. This is because GSU events before
// the GFS are directly injected to RWHI rather than being generated
// from wheel events in MouseWheelEventQueue.
is_in_gesture_scroll_[static_cast<int>(gesture_event.SourceDevice())] =
false;
}
// a GSB event is generated from the first wheel event in a sequence after
// the event is acked as not consumed by the renderer. Sometimes when the
// main thread is busy/slow (e.g ChromeOS debug builds) a GFS arrives
// before the first wheel is acked. In these cases no GSB will arrive
// before the GFS. With browser side fling the out of order GFS arrival
// does not need a DCHECK since the fling controller will process the GFS
// and start queuing wheel events which will follow the one currently
// awaiting ACK and the renderer receives the events in order.
is_in_touchpad_gesture_fling_ = true;
} else {
DCHECK(is_in_gesture_scroll_[static_cast<int>(
gesture_event.SourceDevice())]);
// The FlingController handles GFS with touchscreen source and sends GSU
// events with inertial state to the renderer to progress the fling.
// is_in_gesture_scroll must stay true till the fling progress is
// finished. Then the FlingController will generate and send a GSE which
// shows the end of a scroll sequence and resets is_in_gesture_scroll_.
}
}
// Delegate must be non-null, due to |IsIgnoringInputEvents()| test.
if (delegate_->PreHandleGestureEvent(gesture_event))
return;
GestureEventWithLatencyInfo gesture_with_latency(gesture_event, latency);
DispatchInputEventWithLatencyInfo(gesture_event,
&gesture_with_latency.latency);
input_router_->SendGestureEvent(gesture_with_latency);
}
void RenderWidgetHostImpl::ForwardTouchEventWithLatencyInfo(
const blink::WebTouchEvent& touch_event,
const ui::LatencyInfo& latency) {
TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardTouchEvent");
// This is used to auto-disable accessibility if we detect user input
// but no accessibility API usage.
if (touch_event.GetType() == blink::WebInputEvent::Type::kTouchStart)
BrowserAccessibilityStateImpl::GetInstance()->OnUserInputEvent();
// Always forward TouchEvents for touch stream consistency. They will be
// ignored if appropriate in FilterInputEvent().
TouchEventWithLatencyInfo touch_with_latency(touch_event, latency);
DispatchInputEventWithLatencyInfo(touch_event, &touch_with_latency.latency);
input_router_->SendTouchEvent(touch_with_latency);
}
void RenderWidgetHostImpl::ForwardKeyboardEvent(
const NativeWebKeyboardEvent& key_event) {
ui::LatencyInfo latency_info;
if (key_event.GetType() == WebInputEvent::Type::kRawKeyDown ||
key_event.GetType() == WebInputEvent::Type::kChar) {
latency_info.set_source_event_type(ui::SourceEventType::KEY_PRESS);
}
ForwardKeyboardEventWithLatencyInfo(key_event, latency_info);
}
void RenderWidgetHostImpl::ForwardKeyboardEventWithLatencyInfo(
const NativeWebKeyboardEvent& key_event,
const ui::LatencyInfo& latency) {
ForwardKeyboardEventWithCommands(
key_event, latency, std::vector<blink::mojom::EditCommandPtr>(), nullptr);
}
void RenderWidgetHostImpl::ForwardKeyboardEventWithCommands(
const NativeWebKeyboardEvent& key_event,
const ui::LatencyInfo& latency,
std::vector<blink::mojom::EditCommandPtr> commands,
bool* update_event) {
DCHECK(WebInputEvent::IsKeyboardEventType(key_event.GetType()));
// This is used to auto-disable accessibility if we detect user input
// but no accessibility API usage.
if (key_event.GetType() == blink::WebInputEvent::Type::kRawKeyDown ||
key_event.GetType() == blink::WebInputEvent::Type::kKeyDown) {
BrowserAccessibilityStateImpl::GetInstance()->OnUserInputEvent();
}
TRACE_EVENT0("input", "RenderWidgetHostImpl::ForwardKeyboardEvent");
if (owner_delegate_ &&
!owner_delegate_->MayRenderWidgetForwardKeyboardEvent(key_event)) {
return;
}
if (IsIgnoringInputEvents())
return;
if (!GetProcess()->IsInitializedAndNotDead())
return;
// First, let keypress listeners take a shot at handling the event. If a
// listener handles the event, it should not be propagated to the renderer.
if (KeyPressListenersHandleEvent(key_event)) {
// Some keypresses that are accepted by the listener may be followed by Char
// and KeyUp events, which should be ignored.
if (key_event.GetType() == WebKeyboardEvent::Type::kRawKeyDown)
suppress_events_until_keydown_ = true;
return;
}
if (suppress_events_until_keydown_) {
// If the preceding RawKeyDown event was handled by the browser, then we
// need to suppress all events generated by it until the next RawKeyDown or
// KeyDown event.
if (key_event.GetType() == WebKeyboardEvent::Type::kKeyUp ||
key_event.GetType() == WebKeyboardEvent::Type::kChar)
return;
DCHECK(key_event.GetType() == WebKeyboardEvent::Type::kRawKeyDown ||
key_event.GetType() == WebKeyboardEvent::Type::kKeyDown);
suppress_events_until_keydown_ = false;
}
bool is_shortcut = false;
// Only pre-handle the key event if it's not handled by the input method.
if (delegate_ && !key_event.skip_in_browser) {
// We need to set |suppress_events_until_keydown_| to true if
// PreHandleKeyboardEvent() handles the event, but |this| may already be
// destroyed at that time. So set |suppress_events_until_keydown_| true
// here, then revert it afterwards when necessary.
if (key_event.GetType() == WebKeyboardEvent::Type::kRawKeyDown)
suppress_events_until_keydown_ = true;
// Tab switching/closing accelerators aren't sent to the renderer to avoid
// a hung/malicious renderer from interfering.
switch (delegate_->PreHandleKeyboardEvent(key_event)) {
case KeyboardEventProcessingResult::HANDLED:
return;
#if defined(USE_AURA)
case KeyboardEventProcessingResult::HANDLED_DONT_UPDATE_EVENT:
if (update_event)
*update_event = false;
return;
#endif
case KeyboardEventProcessingResult::NOT_HANDLED:
break;
case KeyboardEventProcessingResult::NOT_HANDLED_IS_SHORTCUT:
is_shortcut = true;
break;
}
if (key_event.GetType() == WebKeyboardEvent::Type::kRawKeyDown)
suppress_events_until_keydown_ = false;
}
auto* touch_emulator = GetExistingTouchEmulator();
if (touch_emulator && touch_emulator->HandleKeyboardEvent(key_event))
return;
NativeWebKeyboardEventWithLatencyInfo key_event_with_latency(key_event,
latency);
key_event_with_latency.event.is_browser_shortcut = is_shortcut;
DispatchInputEventWithLatencyInfo(key_event, &key_event_with_latency.latency);
// TODO(foolip): |InputRouter::SendKeyboardEvent()| may filter events, in
// which the commands will be treated as belonging to the next key event.
// WidgetInputHandler::SetEditCommandsForNextKeyEvent should only be sent if
// WidgetInputHandler::DispatchEvent is, but has to be sent first.
// https://crbug.com/684298
if (!commands.empty())
GetWidgetInputHandler()->SetEditCommandsForNextKeyEvent(
std::move(commands));
input_router_->SendKeyboardEvent(
key_event_with_latency,
base::BindOnce(&RenderWidgetHostImpl::OnKeyboardEventAck,
weak_factory_.GetWeakPtr()));
}
void RenderWidgetHostImpl::CreateSyntheticGestureControllerIfNecessary() {
if (!synthetic_gesture_controller_ && view_) {
synthetic_gesture_controller_ =
std::make_unique<SyntheticGestureController>(
this, view_->CreateSyntheticGestureTarget());
}
}
void RenderWidgetHostImpl::QueueSyntheticGesture(
std::unique_ptr<SyntheticGesture> synthetic_gesture,
base::OnceCallback<void(SyntheticGesture::Result)> on_complete) {
CreateSyntheticGestureControllerIfNecessary();
if (synthetic_gesture_controller_) {
synthetic_gesture_controller_->QueueSyntheticGesture(
std::move(synthetic_gesture), std::move(on_complete));
}
}
void RenderWidgetHostImpl::QueueSyntheticGestureCompleteImmediately(
std::unique_ptr<SyntheticGesture> synthetic_gesture) {
CreateSyntheticGestureControllerIfNecessary();
if (synthetic_gesture_controller_) {
synthetic_gesture_controller_->QueueSyntheticGestureCompleteImmediately(
std::move(synthetic_gesture));
}
}
void RenderWidgetHostImpl::EnsureReadyForSyntheticGestures(
base::OnceClosure on_ready) {
CreateSyntheticGestureControllerIfNecessary();
if (synthetic_gesture_controller_) {
synthetic_gesture_controller_->EnsureRendererInitialized(
std::move(on_ready));
} else {
// If we couldn't create a SyntheticGestureController then we won't ever be
// ready. Invoke the callback to unblock the calling code.
std::move(on_ready).Run();
}
}
void RenderWidgetHostImpl::TakeSyntheticGestureController(
RenderWidgetHostImpl* host) {
DCHECK(!synthetic_gesture_controller_);
if (host->synthetic_gesture_controller_) {
synthetic_gesture_controller_ =
std::move(host->synthetic_gesture_controller_);
synthetic_gesture_controller_->UpdateSyntheticGestureTarget(
view_->CreateSyntheticGestureTarget(), this);
}
}
void RenderWidgetHostImpl::OnCursorVisibilityStateChanged(bool is_visible) {
GetWidgetInputHandler()->CursorVisibilityChanged(is_visible);
}
// static
void RenderWidgetHostImpl::DisableResizeAckCheckForTesting() {
g_check_for_pending_visual_properties_ack = false;
}
void RenderWidgetHostImpl::AddKeyPressEventCallback(
const KeyPressEventCallback& callback) {
key_press_event_callbacks_.push_back(callback);
}
void RenderWidgetHostImpl::RemoveKeyPressEventCallback(
const KeyPressEventCallback& callback) {
for (size_t i = 0; i < key_press_event_callbacks_.size(); ++i) {
if (key_press_event_callbacks_[i] == callback) {
key_press_event_callbacks_.erase(
key_press_event_callbacks_.begin() + i);
return;
}
}
}
void RenderWidgetHostImpl::AddMouseEventCallback(
const MouseEventCallback& callback) {
mouse_event_callbacks_.push_back(callback);
}
void RenderWidgetHostImpl::RemoveMouseEventCallback(
const MouseEventCallback& callback) {
for (size_t i = 0; i < mouse_event_callbacks_.size(); ++i) {
if (mouse_event_callbacks_[i] == callback) {
mouse_event_callbacks_.erase(mouse_event_callbacks_.begin() + i);
return;
}
}
}
void RenderWidgetHostImpl::AddInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) {
if (!input_event_observers_.HasObserver(observer))
input_event_observers_.AddObserver(observer);
}
void RenderWidgetHostImpl::RemoveInputEventObserver(
RenderWidgetHost::InputEventObserver* observer) {
input_event_observers_.RemoveObserver(observer);
}
void RenderWidgetHostImpl::AddObserver(RenderWidgetHostObserver* observer) {
observers_.AddObserver(observer);
}
void RenderWidgetHostImpl::RemoveObserver(RenderWidgetHostObserver* observer) {
observers_.RemoveObserver(observer);
}
void RenderWidgetHostImpl::GetScreenInfo(blink::ScreenInfo* result) {
TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::GetScreenInfo");
if (view_)
view_->GetScreenInfo(result);
else
DisplayUtil::GetDefaultScreenInfo(result);
if (display::Display::HasForceRasterColorProfile()) {
result->display_color_spaces = gfx::DisplayColorSpaces(
display::Display::GetForcedRasterColorProfile());
}
// TODO(sievers): find a way to make this done another way so the method
// can be const.
if (IsUseZoomForDSFEnabled())
input_router_->SetDeviceScaleFactor(result->device_scale_factor);
}
float RenderWidgetHostImpl::GetDeviceScaleFactor() {
return GetScaleFactorForView(view_.get());
}
base::Optional<cc::TouchAction> RenderWidgetHostImpl::GetAllowedTouchAction() {
return input_router_->AllowedTouchAction();
}
void RenderWidgetHostImpl::WriteIntoTrace(perfetto::TracedValue context) {
auto dict = std::move(context).WriteDictionary();
dict.Add("routing_id", GetRoutingID());
}
void RenderWidgetHostImpl::DragTargetDragEnter(
const DropData& drop_data,
const gfx::PointF& client_pt,
const gfx::PointF& screen_pt,
DragOperationsMask operations_allowed,
int key_modifiers,
base::OnceCallback<void(::ui::mojom::DragOperation)> callback) {
DragTargetDragEnterWithMetaData(DropDataToMetaData(drop_data), client_pt,
screen_pt, operations_allowed, key_modifiers,
std::move(callback));
}
void RenderWidgetHostImpl::DragTargetDragEnterWithMetaData(
const std::vector<DropData::Metadata>& metadata,
const gfx::PointF& client_pt,
const gfx::PointF& screen_pt,
DragOperationsMask operations_allowed,
int key_modifiers,
base::OnceCallback<void(::ui::mojom::DragOperation)> callback) {
// TODO(https://crbug.com/1102769): Replace with a for_frame() check.
if (blink_frame_widget_) {
base::OnceCallback<void(::ui::mojom::DragOperation)> callback_wrapper =
base::BindOnce(&RenderWidgetHostImpl::OnUpdateDragCursor,
base::Unretained(this), std::move(callback));
blink_frame_widget_->DragTargetDragEnter(
DropMetaDataToDragData(metadata), client_pt, screen_pt,
operations_allowed, key_modifiers, std::move(callback_wrapper));
}
}
void RenderWidgetHostImpl::DragTargetDragOver(
const gfx::PointF& client_point,
const gfx::PointF& screen_point,
DragOperationsMask operations_allowed,
int key_modifiers,
base::OnceCallback<void(ui::mojom::DragOperation)> callback) {
// TODO(https://crbug.com/1102769): Replace with a for_frame() check.
if (blink_frame_widget_) {
blink_frame_widget_->DragTargetDragOver(
ConvertWindowPointToViewport(client_point), screen_point,
operations_allowed, key_modifiers,
base::BindOnce(&RenderWidgetHostImpl::OnUpdateDragCursor,
base::Unretained(this), std::move(callback)));
}
}
void RenderWidgetHostImpl::DragTargetDragLeave(
const gfx::PointF& client_point,
const gfx::PointF& screen_point) {
// TODO(https://crbug.com/1102769): Replace with a for_frame() check.
if (blink_frame_widget_) {
gfx::PointF viewport_point = client_point;
if (IsUseZoomForDSFEnabled())
viewport_point.Scale(GetScaleFactorForView(GetView()));
blink_frame_widget_->DragTargetDragLeave(viewport_point, screen_point);
}
}
void RenderWidgetHostImpl::DragTargetDrop(const DropData& drop_data,
const gfx::PointF& client_point,
const gfx::PointF& screen_point,
int key_modifiers,
base::OnceClosure callback) {
// TODO(https://crbug.com/1102769): Replace with a for_frame() check.
if (blink_frame_widget_) {
DropData drop_data_with_permissions(drop_data);
GrantFileAccessFromDropData(&drop_data_with_permissions);
StoragePartitionImpl* storage_partition =
static_cast<StoragePartitionImpl*>(GetProcess()->GetStoragePartition());
blink_frame_widget_->DragTargetDrop(
DropDataToDragData(drop_data_with_permissions,
storage_partition->GetFileSystemAccessManager(),
GetProcess()->GetID()),
ConvertWindowPointToViewport(client_point), screen_point, key_modifiers,
std::move(callback));
}
}
void RenderWidgetHostImpl::DragSourceEndedAt(const gfx::PointF& client_point,
const gfx::PointF& screen_point,
ui::mojom::DragOperation operation,
base::OnceClosure callback) {
// TODO(https://crbug.com/1102769): Replace with a for_frame() check.
if (blink_frame_widget_) {
blink_frame_widget_->DragSourceEndedAt(
ConvertWindowPointToViewport(client_point), screen_point, operation,
std::move(callback));
}
}
void RenderWidgetHostImpl::DragSourceSystemDragEnded() {
// TODO(https://crbug.com/1102769): Replace with a for_frame() check.
if (blink_frame_widget_)
blink_frame_widget_->DragSourceSystemDragEnded();
}
void RenderWidgetHostImpl::FilterDropData(DropData* drop_data) {
#if DCHECK_IS_ON()
drop_data->view_id = GetRoutingID();
#endif // DCHECK_IS_ON()
GetProcess()->FilterURL(true, &drop_data->url);
if (drop_data->did_originate_from_renderer) {
drop_data->filenames.clear();
}
}
void RenderWidgetHostImpl::SetCursor(const ui::Cursor& cursor) {
if (view_)
view_->UpdateCursor(WebCursor(cursor));
}
void RenderWidgetHostImpl::ShowContextMenuAtPoint(
const gfx::Point& point,
const ui::MenuSourceType source_type) {
if (blink_frame_widget_)
blink_frame_widget_->ShowContextMenu(source_type, point);
}
void RenderWidgetHostImpl::InsertVisualStateCallback(
VisualStateCallback callback) {
if (!blink_frame_widget_) {
std::move(callback).Run(false);
return;
}
if (!widget_compositor_) {
blink_frame_widget_->BindWidgetCompositor(
widget_compositor_.BindNewPipeAndPassReceiver());
}
widget_compositor_->VisualStateRequest(base::BindOnce(
[](VisualStateCallback callback) { std::move(callback).Run(true); },
mojo::WrapCallbackWithDefaultInvokeIfNotRun(std::move(callback), false)));
}
RenderProcessHost::Priority RenderWidgetHostImpl::GetPriority() {
RenderProcessHost::Priority priority = {
is_hidden_,
frame_depth_,
intersects_viewport_,
#if defined(OS_ANDROID)
importance_,
#endif
};
if (owner_delegate_ &&
!owner_delegate_->ShouldContributePriorityToProcess()) {
priority.is_hidden = true;
priority.frame_depth = RenderProcessHostImpl::kMaxFrameDepthForPriority;
#if defined(OS_ANDROID)
priority.importance = ChildProcessImportance::NORMAL;
#endif
}
return priority;
}
void RenderWidgetHostImpl::RenderProcessExited(
RenderProcessHost* host,
const ChildProcessTerminationInfo& info) {
CHECK(self_owned_);
Destroy(/*also_delete=*/true); // Delete |this|.
}
blink::mojom::WidgetInputHandler*
RenderWidgetHostImpl::GetWidgetInputHandler() {
if (widget_input_handler_)
return widget_input_handler_.get();
// TODO(dtapuska): Remove the need for the unbound interface. It is
// possible that a RVHI may make calls to a WidgetInputHandler when
// the main frame is remote. This is because of ordering issues during
// widget shutdown, so we present an UnboundWidgetInputHandler had
// DLOGS the message calls.
return g_unbound_input_handler.Pointer();
}
void RenderWidgetHostImpl::NotifyScreenInfoChanged() {
// The resize message (which may not happen immediately) will carry with it
// the screen info as well as the new size (if the screen has changed scale
// factor).
SynchronizeVisualProperties();
// The device scale factor will be same for all the views contained by the
// MainFrame, so just set it once.
if (delegate_ && !delegate_->IsWidgetForMainFrame(this))
return;
// The delegate may not have an input event router in tests.
if (auto* touch_emulator = GetExistingTouchEmulator())
touch_emulator->SetDeviceScaleFactor(GetScaleFactorForView(view_.get()));
}
blink::ScreenInfos RenderWidgetHostImpl::GetScreenInfos() {
TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::GetScreenInfos");
// Use GetScreenInfo here to retain legacy behavior for the current screen.
blink::ScreenInfo current_screen_info;
GetScreenInfo(&current_screen_info);
// TODO(enne): RenderWidgetHostViewMac caches the ScreenInfo and chooses
// not to change it during resizes. This means that the RWHV::GetScreenInfo
// returned might be stale wrt GetAllDisplays() below. Fix this.
// For now, just return the legacy screen info for mac.
#if defined(OS_MAC)
return blink::ScreenInfos(current_screen_info);
#else
// If this widget has not been connected to a view yet (or has been
// disconnected), the display code may be using a fake primary display.
// In these cases, temporarily return the legacy screen info until
// it is connected and visual properties updates this correctly.
if (!view_) {
return blink::ScreenInfos(current_screen_info);
}
// TODO(enne): add ScreenInfos to FrameVisualProperties and store these
// on CrossProcessFrameConnector. For now, only return the legacy
// screen info for any child widgets to avoid races between visual
// property propagation of legacy screen info vs GetAllDisplays.
// In the future, child frames should use screen_infos from the connector.
if (view_->IsRenderWidgetHostViewChildFrame()) {
return blink::ScreenInfos(current_screen_info);
}
display::Screen* screen = display::Screen::GetScreen();
if (!screen) {
return blink::ScreenInfos(current_screen_info);
}
const std::vector<display::Display>& displays = screen->GetAllDisplays();
// Just return the legacy singular ScreenInfo, if its id is invalid or if the
// display::Screen is not initialized; each of which occurs in various tests.
// When there are no valid displays, some platforms can also create a
// fake default Display as well (e.g. Display::GetDefaultDisplay).
if (current_screen_info.display_id == display::kInvalidDisplayId ||
current_screen_info.display_id == display::kDefaultDisplayId ||
displays.empty()) {
return blink::ScreenInfos(current_screen_info);
}
// If we get here, we are asserting that the current display as reported
// by the RenderWidgetHostView is inside of GetAllDisplays().
blink::ScreenInfos result;
bool current_display_added = false;
for (const auto& display : displays) {
if (display.id() == current_screen_info.display_id) {
DCHECK(!current_display_added);
result.screen_infos.push_back(current_screen_info);
result.current_display_id = current_screen_info.display_id;
current_display_added = true;
continue;
}
blink::ScreenInfo screen_info;
DisplayUtil::DisplayToScreenInfo(&screen_info, display);
if (display::Display::HasForceRasterColorProfile()) {
screen_info.display_color_spaces = gfx::DisplayColorSpaces(
display::Display::GetForcedRasterColorProfile());
}
result.screen_infos.push_back(screen_info);
}
if (current_display_added)
return result;
// TODO(enne): temporary debugging logic. GetScreens() is called during
// frequent visual property updates, and so will crash even when the
// multi-screen window placement api is not enabled. Instead of CHECK, do a
// dump here so we can check if this is happening without having a full-on
// browser crash.
static bool have_crash_dumped = false;
if (!have_crash_dumped) {
have_crash_dumped = true;
SCOPED_CRASH_KEY_NUMBER("GetScreenInfos", "display_id",
current_screen_info.display_id);
SCOPED_CRASH_KEY_NUMBER("GetScreenInfos", "num_displays", displays.size());
std::string display_ids;
for (const auto& display : displays) {
base::StringAppendF(&display_ids, "%" PRId64 ",", display.id());
}
SCOPED_CRASH_KEY_STRING256("GetScreenInfos", "displays", display_ids);
base::debug::DumpWithoutCrashing();
}
// Fall back to legacy screen info, if we are in a bad state.
return blink::ScreenInfos(current_screen_info);
#endif
}
void RenderWidgetHostImpl::GetSnapshotFromBrowser(
GetSnapshotFromBrowserCallback callback,
bool from_surface) {
int snapshot_id = next_browser_snapshot_id_++;
if (from_surface) {
pending_surface_browser_snapshots_.insert(
std::make_pair(snapshot_id, std::move(callback)));
RequestForceRedraw(snapshot_id);
return;
}
#if defined(OS_MAC)
// MacOS version of underlying GrabViewSnapshot() blocks while
// display/GPU are in a power-saving mode, so make sure display
// does not go to sleep for the duration of reading a snapshot.
if (pending_browser_snapshots_.empty())
GetWakeLock()->RequestWakeLock();
#endif
// TODO(nzolghadr): Remove the duplication here and the if block just above.
pending_browser_snapshots_.insert(
std::make_pair(snapshot_id, std::move(callback)));
RequestForceRedraw(snapshot_id);
}
void RenderWidgetHostImpl::SelectionChanged(const std::u16string& text,
uint32_t offset,
const gfx::Range& range) {
if (view_)
view_->SelectionChanged(text, static_cast<size_t>(offset), range);
}
void RenderWidgetHostImpl::SelectionBoundsChanged(
const gfx::Rect& anchor_rect,
base::i18n::TextDirection anchor_dir,
const gfx::Rect& focus_rect,
base::i18n::TextDirection focus_dir,
const gfx::Rect& bounding_box,
bool is_anchor_first) {
if (view_)
view_->SelectionBoundsChanged(anchor_rect, anchor_dir, focus_rect,
focus_dir, bounding_box, is_anchor_first);
}
void RenderWidgetHostImpl::OnUpdateDragCursor(
DragOperationCallback callback,
ui::mojom::DragOperation current_op) {
RenderViewHostDelegateView* view = delegate_->GetDelegateView();
if (view)
view->UpdateDragCursor(current_op);
std::move(callback).Run(current_op);
}
void RenderWidgetHostImpl::RendererExited() {
if (!renderer_widget_created_)
return;
// Clearing this flag causes us to re-create the renderer when recovering
// from a crashed renderer.
renderer_widget_created_ = false;
// This flag is set when creating the renderer widget.
waiting_for_init_ = false;
blink_widget_.reset();
// After the renderer crashes, the view is destroyed and so the
// RenderWidgetHost cannot track its visibility anymore. We assume such
// RenderWidgetHost to be invisible for the sake of internal accounting - be
// careful about changing this - see http://crbug.com/401859 and
// http://crbug.com/522795.
//
// We need to at least make sure that the RenderProcessHost is notified about
// the |is_hidden_| change, so that the renderer will have correct visibility
// set when respawned.
if (!is_hidden_) {
is_hidden_ = true;
if (!destroyed_)
GetProcess()->UpdateClientPriority(this);
}
if (view_) {
view_->RenderProcessGone();
SetView(nullptr); // The View should be deleted by RenderProcessGone.
}
}
void RenderWidgetHostImpl::ResetStateForCreatedRenderWidget(
const blink::VisualProperties& initial_props) {
// When the RenderWidget was destroyed, the ack may never come back. Don't
// let that prevent us from speaking to the next RenderWidget.
waiting_for_screen_rects_ack_ = false;
visual_properties_ack_pending_ =
DoesVisualPropertiesNeedAck(nullptr, initial_props);
old_visual_properties_ =
std::make_unique<blink::VisualProperties>(initial_props);
// Reconstruct the input router to ensure that it has fresh state for a new
// RenderWidget. Otherwise it may be stuck waiting for the old renderer to ack
// an event. (In particular, the above call to view_->RenderProcessGone() will
// destroy the aura window, which may dispatch a synthetic mouse move.)
//
// This also stops the event ack timeout to ensure the hung renderer mechanism
// is working properly.
SetupInputRouter();
frame_token_message_queue_->Reset();
}
void RenderWidgetHostImpl::UpdateTextDirection(
base::i18n::TextDirection direction) {
text_direction_updated_ = true;
text_direction_ = direction;
}
void RenderWidgetHostImpl::NotifyTextDirection() {
if (!text_direction_updated_)
return;
blink_frame_widget_->SetTextDirection(text_direction_);
text_direction_updated_ = false;
}
void RenderWidgetHostImpl::ImeSetComposition(
const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& replacement_range,
int selection_start,
int selection_end) {
GetWidgetInputHandler()->ImeSetComposition(
text, ime_text_spans, replacement_range, selection_start, selection_end);
#if defined(OS_ANDROID)
for (auto& observer : ime_input_event_observers_) {
observer.OnImeSetComposingTextEvent(text);
}
#endif
}
void RenderWidgetHostImpl::ImeCommitText(
const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& replacement_range,
int relative_cursor_pos) {
GetWidgetInputHandler()->ImeCommitText(text, ime_text_spans,
replacement_range, relative_cursor_pos,
base::OnceClosure());
#if defined(OS_ANDROID)
for (auto& observer : ime_input_event_observers_) {
observer.OnImeTextCommittedEvent(text);
}
#endif
}
void RenderWidgetHostImpl::ImeFinishComposingText(bool keep_selection) {
GetWidgetInputHandler()->ImeFinishComposingText(keep_selection);
#if defined(OS_ANDROID)
for (auto& observer : ime_input_event_observers_) {
observer.OnImeFinishComposingTextEvent();
}
#endif
}
void RenderWidgetHostImpl::ImeCancelComposition() {
GetWidgetInputHandler()->ImeSetComposition(std::u16string(),
std::vector<ui::ImeTextSpan>(),
gfx::Range::InvalidRange(), 0, 0);
}
void RenderWidgetHostImpl::RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult reason) {
DCHECK(!pending_mouse_lock_request_ || !IsMouseLocked());
DCHECK(reason != blink::mojom::PointerLockResult::kSuccess);
if (pending_mouse_lock_request_) {
DCHECK(request_mouse_callback_);
pending_mouse_lock_request_ = false;
mouse_lock_raw_movement_ = false;
std::move(request_mouse_callback_)
.Run(reason, /*context=*/mojo::NullRemote());
} else if (IsMouseLocked()) {
view_->UnlockMouse();
}
}
bool RenderWidgetHostImpl::IsKeyboardLocked() const {
return view_ ? view_->IsKeyboardLocked() : false;
}
void RenderWidgetHostImpl::GetContentRenderingTimeoutFrom(
RenderWidgetHostImpl* other) {
if (other->new_content_rendering_timeout_ &&
other->new_content_rendering_timeout_->IsRunning()) {
new_content_rendering_timeout_->Start(
other->new_content_rendering_timeout_->GetCurrentDelay());
}
}
void RenderWidgetHostImpl::OnMouseEventAck(
const MouseEventWithLatencyInfo& mouse_event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result) {
latency_tracker_.OnInputEventAck(mouse_event.event, &mouse_event.latency,
ack_result);
for (auto& input_event_observer : input_event_observers_)
input_event_observer.OnInputEventAck(ack_source, ack_result,
mouse_event.event);
// Give the delegate the ability to handle a mouse event that wasn't consumed
// by the renderer. eg. Back/Forward mouse buttons.
if (delegate_ &&
ack_result != blink::mojom::InputEventResultState::kConsumed &&
!is_hidden())
delegate_->HandleMouseEvent(mouse_event.event);
}
bool RenderWidgetHostImpl::IsMouseLocked() const {
return view_ ? view_->IsMouseLocked() : false;
}
void RenderWidgetHostImpl::SetVisualPropertiesFromParentFrame(
float page_scale_factor,
float compositing_scale_factor,
bool is_pinch_gesture_active,
const gfx::Size& visible_viewport_size,
const gfx::Rect& compositor_viewport,
std::vector<gfx::Rect> root_widget_window_segments) {
properties_from_parent_local_root_.page_scale_factor = page_scale_factor;
properties_from_parent_local_root_.compositing_scale_factor =
compositing_scale_factor;
properties_from_parent_local_root_.is_pinch_gesture_active =
is_pinch_gesture_active;
properties_from_parent_local_root_.visible_viewport_size =
visible_viewport_size;
properties_from_parent_local_root_.compositor_viewport = compositor_viewport;
properties_from_parent_local_root_.root_widget_window_segments =
std::move(root_widget_window_segments);
}
void RenderWidgetHostImpl::SetAutoResize(bool enable,
const gfx::Size& min_size,
const gfx::Size& max_size) {
auto_resize_enabled_ = enable;
min_size_for_auto_resize_ = min_size;
max_size_for_auto_resize_ = max_size;
}
void RenderWidgetHostImpl::Destroy(bool also_delete) {
DCHECK(!destroyed_);
destroyed_ = true;
for (auto& observer : observers_)
observer.RenderWidgetHostDestroyed(this);
// Tell the view to die.
// Note that in the process of the view shutting down, it can call a ton
// of other messages on us. So if you do any other deinitialization here,
// do it after this call to view_->Destroy().
if (view_) {
view_->Destroy();
view_.reset();
}
// Reset the popup host receiver, this will cause a disconnection notification
// on the renderer to delete Popup widgets.
blink_popup_widget_host_receiver_.reset();
render_process_blocked_state_changed_subscription_ = {};
GetProcess()->RemovePriorityClient(this);
GetProcess()->RemoveObserver(this);
g_routing_id_widget_map.Get().erase(
RenderWidgetHostID(GetProcess()->GetID(), routing_id_));
// The |delegate_| may have been destroyed (or is in the process of being
// destroyed) and detached first.
if (delegate_)
delegate_->RenderWidgetDeleted(this);
if (also_delete) {
CHECK(self_owned_);
// The destructor CHECKs self-owned RenderWidgetHostImpl aren't destroyed
// externally. This bit needs to be reset to allow internal deletion.
self_owned_ = false;
delete this;
}
}
void RenderWidgetHostImpl::OnInputEventAckTimeout() {
RendererIsUnresponsive(base::BindRepeating(
&RenderWidgetHostImpl::RestartInputEventAckTimeoutIfNecessary,
weak_factory_.GetWeakPtr()));
}
void RenderWidgetHostImpl::RendererIsUnresponsive(
base::RepeatingClosure restart_hang_monitor_timeout) {
NotificationService::current()->Notify(
NOTIFICATION_RENDER_WIDGET_HOST_HANG,
Source<RenderWidgetHost>(this),
NotificationService::NoDetails());
is_unresponsive_ = true;
if (delegate_) {
delegate_->RendererUnresponsive(this,
std::move(restart_hang_monitor_timeout));
}
// Do not add code after this since the Delegate may delete this
// RenderWidgetHostImpl in RendererUnresponsive.
}
void RenderWidgetHostImpl::RendererIsResponsive() {
if (is_unresponsive_) {
is_unresponsive_ = false;
if (delegate_)
delegate_->RendererResponsive(this);
}
}
void RenderWidgetHostImpl::ClearDisplayedGraphics() {
NotifyNewContentRenderingTimeoutForTesting();
if (view_)
view_->ResetFallbackToFirstNavigationSurface();
}
void RenderWidgetHostImpl::OnKeyboardEventAck(
const NativeWebKeyboardEventWithLatencyInfo& event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result) {
latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
for (auto& input_event_observer : input_event_observers_)
input_event_observer.OnInputEventAck(ack_source, ack_result, event.event);
bool processed =
(blink::mojom::InputEventResultState::kConsumed == ack_result);
// We only send unprocessed key event upwards if we are not hidden,
// because the user has moved away from us and no longer expect any effect
// of this key event.
if (delegate_ && !processed && !is_hidden() && !event.event.skip_in_browser)
delegate_->HandleKeyboardEvent(event.event);
// WARNING: This RenderWidgetHostImpl can be deallocated at this point
// (i.e. in the case of Ctrl+W, where the call to
// HandleKeyboardEvent destroys this RenderWidgetHostImpl).
}
void RenderWidgetHostImpl::RequestClosePopup() {
DCHECK(!owner_delegate_);
ShutdownAndDestroyWidget(true);
}
void RenderWidgetHostImpl::SetPopupBounds(const gfx::Rect& bounds,
SetPopupBoundsCallback callback) {
if (view_)
view_->SetBounds(bounds);
std::move(callback).Run();
}
void RenderWidgetHostImpl::ShowPopup(const gfx::Rect& initial_rect,
ShowPopupCallback callback) {
delegate_->ShowCreatedWidget(GetProcess()->GetID(), GetRoutingID(),
initial_rect);
std::move(callback).Run();
}
void RenderWidgetHostImpl::SetToolTipText(
const std::u16string& tooltip_text,
base::i18n::TextDirection text_direction_hint) {
if (!GetView())
return;
// First, add directionality marks around tooltip text if necessary.
// A naive solution would be to simply always wrap the text. However, on
// windows, Unicode directional embedding characters can't be displayed on
// systems that lack RTL fonts and are instead displayed as empty squares.
//
// To get around this we only wrap the string when we deem it necessary i.e.
// when the locale direction is different than the tooltip direction hint.
//
// Currently, we use element's directionality as the tooltip direction hint.
// An alternate solution would be to set the overall directionality based on
// trying to detect the directionality from the tooltip text rather than the
// element direction. One could argue that would be a preferable solution
// but we use the current approach to match Fx & IE's behavior.
std::u16string wrapped_tooltip_text = tooltip_text;
if (!tooltip_text.empty()) {
if (text_direction_hint == base::i18n::LEFT_TO_RIGHT) {
// Force the tooltip to have LTR directionality.
wrapped_tooltip_text =
base::i18n::GetDisplayStringInLTRDirectionality(wrapped_tooltip_text);
} else if (text_direction_hint == base::i18n::RIGHT_TO_LEFT &&
!base::i18n::IsRTL()) {
// Force the tooltip to have RTL directionality.
base::i18n::WrapStringWithRTLFormatting(&wrapped_tooltip_text);
}
}
view_->SetTooltipText(wrapped_tooltip_text);
}
void RenderWidgetHostImpl::OnUpdateScreenRectsAck() {
waiting_for_screen_rects_ack_ = false;
if (!view_)
return;
view_->SendInitialPropertiesIfNeeded();
if (view_->GetViewBounds() == last_view_screen_rect_ &&
view_->GetBoundsInRootWindow() == last_window_screen_rect_) {
return;
}
SendScreenRects();
}
void RenderWidgetHostImpl::OnLocalSurfaceIdChanged(
const cc::RenderFrameMetadata& metadata) {
TRACE_EVENT_WITH_FLOW1(
"renderer_host," TRACE_DISABLED_BY_DEFAULT("viz.surface_id_flow"),
"RenderWidgetHostImpl::OnLocalSurfaceIdChanged",
metadata.local_surface_id && metadata.local_surface_id->is_valid()
? metadata.local_surface_id->submission_trace_id() +
metadata.local_surface_id->embed_trace_id()
: 0,
TRACE_EVENT_FLAG_FLOW_IN, "local_surface_id",
metadata.local_surface_id ? metadata.local_surface_id->ToString()
: "null");
// Update our knowledge of the RenderWidget's size.
DCHECK(!metadata.viewport_size_in_pixels.IsEmpty());
visual_properties_ack_pending_ = false;
for (auto& observer : observers_)
observer.RenderWidgetHostDidUpdateVisualProperties(this);
if (!view_)
return;
viz::ScopedSurfaceIdAllocator scoped_allocator =
view_->DidUpdateVisualProperties(metadata);
base::AutoReset<bool> auto_reset(&surface_id_allocation_suppressed_, true);
if (auto_resize_enabled_ && delegate_) {
// TODO(fsamuel): The fact that we translate the viewport_size from pixels
// to DIP is concerning. This could result in invariants violations.
gfx::Size viewport_size_in_dip = gfx::ScaleToCeiledSize(
metadata.viewport_size_in_pixels, 1.f / metadata.device_scale_factor);
delegate_->ResizeDueToAutoResize(this, viewport_size_in_dip);
}
}
// static
bool RenderWidgetHostImpl::DidVisualPropertiesSizeChange(
const blink::VisualProperties& old_visual_properties,
const blink::VisualProperties& new_visual_properties) {
return old_visual_properties.auto_resize_enabled !=
new_visual_properties.auto_resize_enabled ||
(old_visual_properties.auto_resize_enabled &&
(old_visual_properties.min_size_for_auto_resize !=
new_visual_properties.min_size_for_auto_resize ||
old_visual_properties.max_size_for_auto_resize !=
new_visual_properties.max_size_for_auto_resize)) ||
(!old_visual_properties.auto_resize_enabled &&
(old_visual_properties.new_size != new_visual_properties.new_size ||
(old_visual_properties.compositor_viewport_pixel_rect.IsEmpty() &&
!new_visual_properties.compositor_viewport_pixel_rect.IsEmpty())));
}
// static
bool RenderWidgetHostImpl::DoesVisualPropertiesNeedAck(
const std::unique_ptr<blink::VisualProperties>& old_visual_properties,
const blink::VisualProperties& new_visual_properties) {
// We should throttle sending updated VisualProperties to the renderer to
// the rate of commit. This ensures we don't overwhelm the renderer with
// visual updates faster than it can keep up. |needs_ack| corresponds to
// cases where a commit is expected.
bool is_acking_applicable =
g_check_for_pending_visual_properties_ack &&
!new_visual_properties.auto_resize_enabled &&
!new_visual_properties.new_size.IsEmpty() &&
!new_visual_properties.compositor_viewport_pixel_rect.IsEmpty() &&
new_visual_properties.local_surface_id;
// If acking is applicable, then check if there has been an
// |old_visual_properties| stored which would indicate an update has been
// sent. If so, then acking is defined by size changing.
return is_acking_applicable &&
(!old_visual_properties ||
DidVisualPropertiesSizeChange(*old_visual_properties,
new_visual_properties));
}
// static
bool RenderWidgetHostImpl::StoredVisualPropertiesNeedsUpdate(
const std::unique_ptr<blink::VisualProperties>& old_visual_properties,
const blink::VisualProperties& new_visual_properties) {
if (!old_visual_properties)
return true;
const bool size_changed = DidVisualPropertiesSizeChange(
*old_visual_properties, new_visual_properties);
// Hold on the the LocalSurfaceId in a local variable otherwise the
// LocalSurfaceId may become invalid when used later.
const viz::LocalSurfaceId old_parent_local_surface_id =
old_visual_properties->local_surface_id.value_or(viz::LocalSurfaceId());
const viz::LocalSurfaceId new_parent_local_surface_id =
new_visual_properties.local_surface_id.value_or(viz::LocalSurfaceId());
const bool parent_local_surface_id_changed =
old_parent_local_surface_id.parent_sequence_number() !=
new_parent_local_surface_id.parent_sequence_number() ||
old_parent_local_surface_id.embed_token() !=
new_parent_local_surface_id.embed_token();
const bool zoom_changed =
old_visual_properties->zoom_level != new_visual_properties.zoom_level;
return zoom_changed || size_changed || parent_local_surface_id_changed ||
old_visual_properties->screen_infos !=
new_visual_properties.screen_infos ||
old_visual_properties->compositor_viewport_pixel_rect !=
new_visual_properties.compositor_viewport_pixel_rect ||
old_visual_properties->is_fullscreen_granted !=
new_visual_properties.is_fullscreen_granted ||
old_visual_properties->display_mode !=
new_visual_properties.display_mode ||
old_visual_properties->browser_controls_params !=
new_visual_properties.browser_controls_params ||
old_visual_properties->visible_viewport_size !=
new_visual_properties.visible_viewport_size ||
old_visual_properties->capture_sequence_number !=
new_visual_properties.capture_sequence_number ||
old_visual_properties->page_scale_factor !=
new_visual_properties.page_scale_factor ||
old_visual_properties->compositing_scale_factor !=
new_visual_properties.compositing_scale_factor ||
old_visual_properties->is_pinch_gesture_active !=
new_visual_properties.is_pinch_gesture_active ||
old_visual_properties->root_widget_window_segments !=
new_visual_properties.root_widget_window_segments;
}
void RenderWidgetHostImpl::AutoscrollStart(const gfx::PointF& position) {
GetView()->OnAutoscrollStart();
sent_autoscroll_scroll_begin_ = false;
autoscroll_in_progress_ = true;
delegate()->GetInputEventRouter()->SetAutoScrollInProgress(
autoscroll_in_progress_);
autoscroll_start_position_ = position;
}
void RenderWidgetHostImpl::AutoscrollFling(const gfx::Vector2dF& velocity) {
DCHECK(autoscroll_in_progress_);
if (!sent_autoscroll_scroll_begin_ && velocity != gfx::Vector2dF()) {
// Send a GSB event with valid delta hints.
WebGestureEvent scroll_begin =
blink::SyntheticWebGestureEventBuilder::Build(
WebInputEvent::Type::kGestureScrollBegin,
blink::WebGestureDevice::kSyntheticAutoscroll);
scroll_begin.SetPositionInWidget(autoscroll_start_position_);
scroll_begin.data.scroll_begin.delta_x_hint = velocity.x();
scroll_begin.data.scroll_begin.delta_y_hint = velocity.y();
ForwardGestureEventWithLatencyInfo(
scroll_begin, ui::LatencyInfo(ui::SourceEventType::OTHER));
sent_autoscroll_scroll_begin_ = true;
}
WebGestureEvent event = blink::SyntheticWebGestureEventBuilder::Build(
WebInputEvent::Type::kGestureFlingStart,
blink::WebGestureDevice::kSyntheticAutoscroll);
event.SetPositionInWidget(autoscroll_start_position_);
event.data.fling_start.velocity_x = velocity.x();
event.data.fling_start.velocity_y = velocity.y();
ForwardGestureEventWithLatencyInfo(
event, ui::LatencyInfo(ui::SourceEventType::OTHER));
}
void RenderWidgetHostImpl::AutoscrollEnd() {
autoscroll_in_progress_ = false;
delegate()->GetInputEventRouter()->SetAutoScrollInProgress(
autoscroll_in_progress_);
// Don't send a GFC if no GSB is sent.
if (!sent_autoscroll_scroll_begin_)
return;
sent_autoscroll_scroll_begin_ = false;
WebGestureEvent cancel_event = blink::SyntheticWebGestureEventBuilder::Build(
WebInputEvent::Type::kGestureFlingCancel,
blink::WebGestureDevice::kSyntheticAutoscroll);
cancel_event.data.fling_cancel.prevent_boosting = true;
cancel_event.SetPositionInWidget(autoscroll_start_position_);
ForwardGestureEventWithLatencyInfo(
cancel_event, ui::LatencyInfo(ui::SourceEventType::OTHER));
}
void RenderWidgetHostImpl::DidFirstVisuallyNonEmptyPaint() {
if (owner_delegate_)
owner_delegate_->RenderWidgetDidFirstVisuallyNonEmptyPaint();
}
void RenderWidgetHostImpl::StartDragging(
blink::mojom::DragDataPtr drag_data,
blink::DragOperationsMask drag_operations_mask,
const SkBitmap& bitmap,
const gfx::Vector2d& bitmap_offset_in_dip,
blink::mojom::DragEventSourceInfoPtr event_info) {
RenderViewHostDelegateView* view = delegate_->GetDelegateView();
if (!view || !GetView()) {
// Need to clear drag and drop state in blink.
DragSourceSystemDragEnded();
return;
}
DropData drop_data = DragDataToDropData(*drag_data);
if (frame_tree_) {
bool intercepted = false;
devtools_instrumentation::WillStartDragging(
frame_tree_->root(), std::move(drag_data), drag_operations_mask,
&intercepted);
if (intercepted)
return;
}
DropData filtered_data(drop_data);
RenderProcessHost* process = GetProcess();
ChildProcessSecurityPolicyImpl* policy =
ChildProcessSecurityPolicyImpl::GetInstance();
// Allow drag of Javascript URLs to enable bookmarklet drag to bookmark bar.
if (!filtered_data.url.SchemeIs(url::kJavaScriptScheme))
process->FilterURL(true, &filtered_data.url);
process->FilterURL(false, &filtered_data.html_base_url);
// Filter out any paths that the renderer didn't have access to. This prevents
// the following attack on a malicious renderer:
// 1. StartDragging IPC sent with renderer-specified filesystem paths that it
// doesn't have read permissions for.
// 2. We initiate a native DnD operation.
// 3. DnD operation immediately ends since mouse is not held down. DnD events
// still fire though, which causes read permissions to be granted to the
// renderer for any file paths in the drop.
filtered_data.filenames.clear();
for (const auto& file_info : drop_data.filenames) {
if (policy->CanReadFile(GetProcess()->GetID(), file_info.path))
filtered_data.filenames.push_back(file_info);
}
storage::FileSystemContext* file_system_context =
GetProcess()->GetStoragePartition()->GetFileSystemContext();
filtered_data.file_system_files.clear();
for (const auto& file_system_file : drop_data.file_system_files) {
storage::FileSystemURL file_system_url =
file_system_context->CrackURL(file_system_file.url);
if (policy->CanReadFileSystemFile(GetProcess()->GetID(), file_system_url))
filtered_data.file_system_files.push_back(file_system_file);
}
float scale = GetScaleFactorForView(GetView());
gfx::ImageSkia image = gfx::ImageSkia::CreateFromBitmap(bitmap, scale);
view->StartDragging(filtered_data, drag_operations_mask, image,
bitmap_offset_in_dip, *event_info, this);
}
bool RenderWidgetHostImpl::IsAutoscrollInProgress() {
return autoscroll_in_progress_;
}
TouchEmulator* RenderWidgetHostImpl::GetTouchEmulator() {
if (!delegate_ || !delegate_->GetInputEventRouter())
return nullptr;
return delegate_->GetInputEventRouter()->GetTouchEmulator();
}
TouchEmulator* RenderWidgetHostImpl::GetExistingTouchEmulator() {
if (!delegate_ || !delegate_->GetInputEventRouter() ||
!delegate_->GetInputEventRouter()->has_touch_emulator()) {
return nullptr;
}
return delegate_->GetInputEventRouter()->GetTouchEmulator();
}
void RenderWidgetHostImpl::TextInputStateChanged(
ui::mojom::TextInputStatePtr state) {
if (view_)
view_->TextInputStateChanged(*state);
}
void RenderWidgetHostImpl::OnImeCompositionRangeChanged(
const gfx::Range& range,
const std::vector<gfx::Rect>& character_bounds) {
if (view_)
view_->ImeCompositionRangeChanged(range, character_bounds);
}
void RenderWidgetHostImpl::OnImeCancelComposition() {
if (view_)
view_->ImeCancelComposition();
}
bool RenderWidgetHostImpl::IsWheelScrollInProgress() {
return is_in_gesture_scroll_[static_cast<int>(
blink::WebGestureDevice::kTouchpad)];
}
void RenderWidgetHostImpl::SetMouseCapture(bool capture) {
if (!delegate_ || !delegate_->GetInputEventRouter())
return;
delegate_->GetInputEventRouter()->SetMouseCaptureTarget(GetView(), capture);
}
void RenderWidgetHostImpl::RequestMouseLock(
bool from_user_gesture,
bool unadjusted_movement,
InputRouterImpl::RequestMouseLockCallback response) {
if (pending_mouse_lock_request_) {
std::move(response).Run(blink::mojom::PointerLockResult::kAlreadyLocked,
/*context=*/mojo::NullRemote());
return;
}
if (!view_ || !view_->HasFocus()) {
std::move(response).Run(blink::mojom::PointerLockResult::kWrongDocument,
/*context=*/mojo::NullRemote());
return;
}
request_mouse_callback_ = std::move(response);
pending_mouse_lock_request_ = true;
mouse_lock_raw_movement_ = unadjusted_movement;
if (!delegate_) {
// No delegate, reject message.
GotResponseToLockMouseRequest(
blink::mojom::PointerLockResult::kPermissionDenied);
return;
}
delegate_->RequestToLockMouse(this, from_user_gesture,
is_last_unlocked_by_target_, false);
// We need to reset |is_last_unlocked_by_target_| here as we don't know
// request source in |LostMouseLock()|.
is_last_unlocked_by_target_ = false;
}
void RenderWidgetHostImpl::RequestMouseLockChange(
bool unadjusted_movement,
PointerLockContext::RequestMouseLockChangeCallback response) {
if (pending_mouse_lock_request_) {
std::move(response).Run(blink::mojom::PointerLockResult::kAlreadyLocked);
return;
}
if (!view_ || !view_->HasFocus()) {
std::move(response).Run(blink::mojom::PointerLockResult::kWrongDocument);
return;
}
std::move(response).Run(view_->ChangeMouseLock(unadjusted_movement));
}
void RenderWidgetHostImpl::UnlockMouse() {
// Got unlock request from renderer. Will update |is_last_unlocked_by_target_|
// for silent re-lock.
const bool was_mouse_locked = !pending_mouse_lock_request_ && IsMouseLocked();
RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult::kUserRejected);
if (was_mouse_locked)
is_last_unlocked_by_target_ = true;
}
void RenderWidgetHostImpl::OnInvalidFrameToken(uint32_t frame_token) {
bad_message::ReceivedBadMessage(GetProcess(),
bad_message::RWH_INVALID_FRAME_TOKEN);
}
bool RenderWidgetHostImpl::RequestKeyboardLock(
base::Optional<base::flat_set<ui::DomCode>> codes) {
if (!delegate_) {
CancelKeyboardLock();
return false;
}
DCHECK(!codes.has_value() || !codes.value().empty());
keyboard_keys_to_lock_ = std::move(codes);
keyboard_lock_requested_ = true;
const bool esc_requested =
!keyboard_keys_to_lock_.has_value() ||
base::Contains(keyboard_keys_to_lock_.value(), ui::DomCode::ESCAPE);
if (!delegate_->RequestKeyboardLock(this, esc_requested)) {
CancelKeyboardLock();
return false;
}
return true;
}
void RenderWidgetHostImpl::CancelKeyboardLock() {
if (delegate_)
delegate_->CancelKeyboardLock(this);
UnlockKeyboard();
keyboard_lock_allowed_ = false;
keyboard_lock_requested_ = false;
keyboard_keys_to_lock_.reset();
}
base::flat_map<std::string, std::string>
RenderWidgetHostImpl::GetKeyboardLayoutMap() {
if (!view_)
return {};
return view_->GetKeyboardLayoutMap();
}
void RenderWidgetHostImpl::RequestForceRedraw(int snapshot_id) {
if (!blink_widget_)
return;
blink_widget_->ForceRedraw(
base::BindOnce(&RenderWidgetHostImpl::GotResponseToForceRedraw,
base::Unretained(this), snapshot_id));
}
bool RenderWidgetHostImpl::KeyPressListenersHandleEvent(
const NativeWebKeyboardEvent& event) {
if (event.skip_in_browser ||
event.GetType() != WebKeyboardEvent::Type::kRawKeyDown)
return false;
for (size_t i = 0; i < key_press_event_callbacks_.size(); i++) {
size_t original_size = key_press_event_callbacks_.size();
if (key_press_event_callbacks_[i].Run(event))
return true;
// Check whether the callback that just ran removed itself, in which case
// the iterator needs to be decremented to properly account for the removal.
size_t current_size = key_press_event_callbacks_.size();
if (current_size != original_size) {
DCHECK_EQ(original_size - 1, current_size);
--i;
}
}
return false;
}
blink::mojom::InputEventResultState RenderWidgetHostImpl::FilterInputEvent(
const blink::WebInputEvent& event,
const ui::LatencyInfo& latency_info) {
// Don't ignore touch cancel events, since they may be sent while input
// events are being ignored in order to keep the renderer from getting
// confused about how many touches are active.
if (IsIgnoringInputEvents() &&
event.GetType() != WebInputEvent::Type::kTouchCancel)
return blink::mojom::InputEventResultState::kNoConsumerExists;
if (!GetProcess()->IsInitializedAndNotDead())
return blink::mojom::InputEventResultState::kUnknown;
if (delegate_) {
if (event.GetType() == WebInputEvent::Type::kMouseDown ||
event.GetType() == WebInputEvent::Type::kTouchStart ||
event.GetType() == WebInputEvent::Type::kGestureTap) {
delegate_->FocusOwningWebContents(this);
}
delegate_->DidReceiveInputEvent(this, event);
}
return view_ ? view_->FilterInputEvent(event)
: blink::mojom::InputEventResultState::kNotConsumed;
}
void RenderWidgetHostImpl::IncrementInFlightEventCount() {
++in_flight_event_count_;
if (in_flight_event_count_ == 1)
power_mode_input_voter_->VoteFor(power_scheduler::PowerMode::kResponse);
if (!is_hidden_)
StartInputEventAckTimeout();
}
void RenderWidgetHostImpl::DecrementInFlightEventCount(
blink::mojom::InputEventResultSource ack_source) {
--in_flight_event_count_;
if (in_flight_event_count_ <= 0) {
// Cancel pending hung renderer checks since the renderer is responsive.
StopInputEventAckTimeout();
power_mode_input_voter_->ResetVoteAfterTimeout(
power_scheduler::PowerModeVoter::kResponseTimeout);
} else {
// Only restart the hang monitor timer if we got a response from the
// main thread.
if (ack_source == blink::mojom::InputEventResultSource::kMainThread)
RestartInputEventAckTimeoutIfNecessary();
}
}
void RenderWidgetHostImpl::DidOverscroll(
const ui::DidOverscrollParams& params) {
if (view_)
view_->DidOverscroll(params);
}
void RenderWidgetHostImpl::DidStopFlinging() {
is_in_touchpad_gesture_fling_ = false;
if (view_)
view_->DidStopFlinging();
}
void RenderWidgetHostImpl::DidStartScrollingViewport() {
if (view_)
view_->set_is_currently_scrolling_viewport(true);
}
void RenderWidgetHostImpl::OnInvalidInputEventSource() {
bad_message::ReceivedBadMessage(
GetProcess(), bad_message::INPUT_ROUTER_INVALID_EVENT_SOURCE);
}
void RenderWidgetHostImpl::AddPendingUserActivation(
const WebInputEvent& event) {
if ((base::FeatureList::IsEnabled(
features::kBrowserVerifiedUserActivationMouse) &&
event.GetType() == WebInputEvent::Type::kMouseDown) ||
(base::FeatureList::IsEnabled(
features::kBrowserVerifiedUserActivationKeyboard) &&
(event.GetType() == WebInputEvent::Type::kKeyDown ||
event.GetType() == WebInputEvent::Type::kRawKeyDown))) {
pending_user_activation_timer_.Start(
FROM_HERE, kActivationNotificationExpireTime,
base::BindOnce(&RenderWidgetHostImpl::ClearPendingUserActivation,
base::Unretained(this)));
pending_user_activation_counter_++;
}
}
void RenderWidgetHostImpl::ClearPendingUserActivation() {
pending_user_activation_counter_ = 0;
pending_user_activation_timer_.Stop();
}
bool RenderWidgetHostImpl::RemovePendingUserActivationIfAvailable() {
if (pending_user_activation_counter_ > 0) {
pending_user_activation_counter_--;
return true;
}
return false;
}
const mojo::AssociatedRemote<blink::mojom::FrameWidget>&
RenderWidgetHostImpl::GetAssociatedFrameWidget() {
return blink_frame_widget_;
}
blink::mojom::FrameWidgetInputHandler*
RenderWidgetHostImpl::GetFrameWidgetInputHandler() {
if (!frame_widget_input_handler_)
return nullptr;
return frame_widget_input_handler_.get();
}
base::Optional<blink::VisualProperties>
RenderWidgetHostImpl::LastComputedVisualProperties() const {
if (!old_visual_properties_)
return base::nullopt;
return *old_visual_properties_;
}
mojom::CreateFrameWidgetParamsPtr
RenderWidgetHostImpl::BindAndGenerateCreateFrameWidgetParams() {
auto params = mojom::CreateFrameWidgetParams::New();
params->routing_id = GetRoutingID();
mojo::PendingAssociatedRemote<blink::mojom::Widget> widget_remote;
params->widget = widget_remote.InitWithNewEndpointAndPassReceiver();
BindWidgetInterfaces(params->widget_host.InitWithNewEndpointAndPassReceiver(),
std::move(widget_remote));
mojo::PendingAssociatedRemote<blink::mojom::FrameWidget> frame_widget_remote;
params->frame_widget =
frame_widget_remote.InitWithNewEndpointAndPassReceiver();
BindFrameWidgetInterfaces(
params->frame_widget_host.InitWithNewEndpointAndPassReceiver(),
std::move(frame_widget_remote));
params->visual_properties = GetInitialVisualProperties();
return params;
}
mojom::CreateFrameWidgetParamsPtr
RenderWidgetHostImpl::BindAndGenerateCreateFrameWidgetParamsForNewWindow() {
auto params = mojom::CreateFrameWidgetParams::New();
params->routing_id = GetRoutingID();
mojo::PendingAssociatedRemote<blink::mojom::Widget> widget_remote;
params->widget = widget_remote.InitWithNewEndpointAndPassReceiver();
BindWidgetInterfaces(params->widget_host.InitWithNewEndpointAndPassReceiver(),
std::move(widget_remote));
mojo::PendingAssociatedRemote<blink::mojom::FrameWidget> frame_widget_remote;
params->frame_widget =
frame_widget_remote.InitWithNewEndpointAndPassReceiver();
BindFrameWidgetInterfaces(
params->frame_widget_host.InitWithNewEndpointAndPassReceiver(),
std::move(frame_widget_remote));
// TODO(danakj): For some reason, there is no RenderWidgetHostView here, but
// it seems like there should be one? In the meantime we send some nonsense
// with semi-valid but incorrect screen info (it needs a RenderWidgetHostView
// to be correct). An updated VisualProperties will get to the RenderWidget
// eventually.
params->visual_properties.screen_infos = GetScreenInfos();
return params;
}
void RenderWidgetHostImpl::DispatchInputEventWithLatencyInfo(
const blink::WebInputEvent& event,
ui::LatencyInfo* latency) {
latency_tracker_.OnInputEvent(event, latency);
AddPendingUserActivation(event);
for (auto& observer : input_event_observers_)
observer.OnInputEvent(event);
}
void RenderWidgetHostImpl::OnWheelEventAck(
const MouseWheelEventWithLatencyInfo& wheel_event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result) {
latency_tracker_.OnInputEventAck(wheel_event.event, &wheel_event.latency,
ack_result);
for (auto& input_event_observer : input_event_observers_)
input_event_observer.OnInputEventAck(ack_source, ack_result,
wheel_event.event);
if (!is_hidden() && view_) {
if (ack_result != blink::mojom::InputEventResultState::kConsumed &&
delegate_ && delegate_->HandleWheelEvent(wheel_event.event)) {
ack_result = blink::mojom::InputEventResultState::kConsumed;
}
view_->WheelEventAck(wheel_event.event, ack_result);
}
}
void RenderWidgetHostImpl::OnGestureEventAck(
const GestureEventWithLatencyInfo& event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result) {
latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
for (auto& input_event_observer : input_event_observers_)
input_event_observer.OnInputEventAck(ack_source, ack_result, event.event);
// If the TouchEmulator didn't exist when this GestureEvent was sent, we
// shouldn't create it here.
if (auto* touch_emulator = GetExistingTouchEmulator())
touch_emulator->OnGestureEventAck(event.event, GetView());
if (view_)
view_->GestureEventAck(event.event, ack_result);
}
void RenderWidgetHostImpl::OnTouchEventAck(
const TouchEventWithLatencyInfo& event,
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result) {
latency_tracker_.OnInputEventAck(event.event, &event.latency, ack_result);
for (auto& input_event_observer : input_event_observers_)
input_event_observer.OnInputEventAck(ack_source, ack_result, event.event);
auto* input_event_router =
delegate() ? delegate()->GetInputEventRouter() : nullptr;
// At present interstitial pages might not have an input event router, so we
// just have the view process the ack directly in that case; the view is
// guaranteed to be a top-level view with an appropriate implementation of
// ProcessAckedTouchEvent().
if (input_event_router)
input_event_router->ProcessAckedTouchEvent(event, ack_result, view_.get());
else if (view_)
view_->ProcessAckedTouchEvent(event, ack_result);
}
bool RenderWidgetHostImpl::IsIgnoringInputEvents() const {
return agent_scheduling_group_.GetProcess()->IsBlocked() || !delegate_ ||
delegate_->ShouldIgnoreInputEvents();
}
bool RenderWidgetHostImpl::GotResponseToLockMouseRequest(
blink::mojom::PointerLockResult response) {
if (response != blink::mojom::PointerLockResult::kSuccess) {
RejectMouseLockOrUnlockIfNecessary(response);
}
if (!pending_mouse_lock_request_) {
// This is possible, e.g., the plugin sends us an unlock request before
// the user allows to lock to mouse.
return false;
}
DCHECK(request_mouse_callback_);
pending_mouse_lock_request_ = false;
if (!view_ || !view_->HasFocus()) {
std::move(request_mouse_callback_)
.Run(blink::mojom::PointerLockResult::kWrongDocument,
/*context=*/mojo::NullRemote());
return false;
}
blink::mojom::PointerLockResult result =
view_->LockMouse(mouse_lock_raw_movement_);
if (result != blink::mojom::PointerLockResult::kSuccess) {
std::move(request_mouse_callback_)
.Run(result, /*context=*/mojo::NullRemote());
return false;
}
mojo::PendingRemote<blink::mojom::PointerLockContext> context =
mouse_lock_context_.BindNewPipeAndPassRemote();
std::move(request_mouse_callback_)
.Run(blink::mojom::PointerLockResult::kSuccess, std::move(context));
mouse_lock_context_.set_disconnect_handler(base::BindOnce(
&RenderWidgetHostImpl::UnlockMouse, weak_factory_.GetWeakPtr()));
return true;
}
void RenderWidgetHostImpl::GotResponseToKeyboardLockRequest(bool allowed) {
DCHECK(keyboard_lock_requested_);
keyboard_lock_allowed_ = allowed;
if (keyboard_lock_allowed_)
LockKeyboard();
else
UnlockKeyboard();
}
void RenderWidgetHostImpl::GotResponseToForceRedraw(int snapshot_id) {
// Snapshots from surface do not need to wait for the screen update.
if (!pending_surface_browser_snapshots_.empty()) {
GetView()->CopyFromSurface(
gfx::Rect(), gfx::Size(),
base::BindOnce(&RenderWidgetHostImpl::OnSnapshotFromSurfaceReceived,
weak_factory_.GetWeakPtr(), snapshot_id, 0));
}
if (pending_browser_snapshots_.empty())
return;
#if defined(OS_MAC) || defined(OS_WIN)
// On Mac, when using CoreAnimation, or Win32 when using GDI, there is a
// delay between when content is drawn to the screen, and when the
// snapshot will actually pick up that content. Insert a manual delay of
// 1/6th of a second (to simulate 10 frames at 60 fps) before actually
// taking the snapshot.
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&RenderWidgetHostImpl::WindowSnapshotReachedScreen,
weak_factory_.GetWeakPtr(), snapshot_id),
base::TimeDelta::FromSecondsD(1. / 6));
#else
WindowSnapshotReachedScreen(snapshot_id);
#endif
}
void RenderWidgetHostImpl::DetachDelegate() {
delegate_ = nullptr;
latency_tracker_.reset_delegate();
}
void RenderWidgetHostImpl::WindowSnapshotReachedScreen(int snapshot_id) {
DCHECK(base::CurrentUIThread::IsSet());
if (!pending_browser_snapshots_.empty()) {
#if defined(OS_ANDROID)
// On Android, call sites should pass in the bounds with correct offset
// to capture the intended content area.
gfx::Rect snapshot_bounds(GetView()->GetViewBounds());
snapshot_bounds.Offset(0, GetView()->GetNativeView()->content_offset());
#else
gfx::Rect snapshot_bounds(GetView()->GetViewBounds().size());
#endif
gfx::Image image;
if (ui::GrabViewSnapshot(GetView()->GetNativeView(), snapshot_bounds,
&image)) {
OnSnapshotReceived(snapshot_id, image);
return;
}
ui::GrabViewSnapshotAsync(
GetView()->GetNativeView(), snapshot_bounds,
base::BindOnce(&RenderWidgetHostImpl::OnSnapshotReceived,
weak_factory_.GetWeakPtr(), snapshot_id));
}
}
void RenderWidgetHostImpl::OnSnapshotFromSurfaceReceived(
int snapshot_id,
int retry_count,
const SkBitmap& bitmap) {
static constexpr int kMaxRetries = 5;
if (bitmap.drawsNothing() && retry_count < kMaxRetries) {
GetView()->CopyFromSurface(
gfx::Rect(), gfx::Size(),
base::BindOnce(&RenderWidgetHostImpl::OnSnapshotFromSurfaceReceived,
weak_factory_.GetWeakPtr(), snapshot_id,
retry_count + 1));
return;
}
// If all retries have failed, we return an empty image.
gfx::Image image;
if (!bitmap.drawsNothing())
image = gfx::Image::CreateFrom1xBitmap(bitmap);
// Any pending snapshots with a lower ID than the one received are considered
// to be implicitly complete, and returned the same snapshot data.
auto it = pending_surface_browser_snapshots_.begin();
while (it != pending_surface_browser_snapshots_.end()) {
if (it->first <= snapshot_id) {
std::move(it->second).Run(image);
pending_surface_browser_snapshots_.erase(it++);
} else {
++it;
}
}
}
void RenderWidgetHostImpl::OnSnapshotReceived(int snapshot_id,
gfx::Image image) {
// Any pending snapshots with a lower ID than the one received are considered
// to be implicitly complete, and returned the same snapshot data.
auto it = pending_browser_snapshots_.begin();
while (it != pending_browser_snapshots_.end()) {
if (it->first <= snapshot_id) {
std::move(it->second).Run(image);
pending_browser_snapshots_.erase(it++);
} else {
++it;
}
}
#if defined(OS_MAC)
if (pending_browser_snapshots_.empty())
GetWakeLock()->CancelWakeLock();
#endif
}
BrowserAccessibilityManager*
RenderWidgetHostImpl::GetRootBrowserAccessibilityManager() {
return delegate_ ? delegate_->GetRootBrowserAccessibilityManager() : nullptr;
}
BrowserAccessibilityManager*
RenderWidgetHostImpl::GetOrCreateRootBrowserAccessibilityManager() {
return delegate_ ? delegate_->GetOrCreateRootBrowserAccessibilityManager()
: nullptr;
}
void RenderWidgetHostImpl::GrantFileAccessFromDropData(DropData* drop_data) {
DCHECK_EQ(GetRoutingID(), drop_data->view_id);
RenderProcessHost* process = GetProcess();
PrepareDropDataForChildProcess(
drop_data, ChildProcessSecurityPolicyImpl::GetInstance(),
process->GetID(), process->GetStoragePartition()->GetFileSystemContext());
}
void RenderWidgetHostImpl::RequestCompositionUpdates(bool immediate_request,
bool monitor_updates) {
if (!immediate_request && monitor_updates == monitoring_composition_info_)
return;
monitoring_composition_info_ = monitor_updates;
GetWidgetInputHandler()->RequestCompositionUpdates(immediate_request,
monitor_updates);
}
void RenderWidgetHostImpl::CreateFrameSink(
mojo::PendingReceiver<viz::mojom::CompositorFrameSink>
compositor_frame_sink_receiver,
mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient>
compositor_frame_sink_client) {
// Connects the viz process end of CompositorFrameSink message pipes. The
// renderer compositor may request a new CompositorFrameSink on context
// loss, which will destroy the existing CompositorFrameSink.
auto callback = base::BindOnce(
[](mojo::PendingReceiver<viz::mojom::CompositorFrameSink> receiver,
mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient> client,
const viz::FrameSinkId& frame_sink_id) {
GetHostFrameSinkManager()->CreateCompositorFrameSink(
frame_sink_id, std::move(receiver), std::move(client));
},
std::move(compositor_frame_sink_receiver),
std::move(compositor_frame_sink_client));
if (view_)
std::move(callback).Run(view_->GetFrameSinkId());
else
create_frame_sink_callback_ = std::move(callback);
}
void RenderWidgetHostImpl::RegisterRenderFrameMetadataObserver(
mojo::PendingReceiver<cc::mojom::RenderFrameMetadataObserverClient>
render_frame_metadata_observer_client_receiver,
mojo::PendingRemote<cc::mojom::RenderFrameMetadataObserver>
render_frame_metadata_observer) {
render_frame_metadata_provider_.Bind(
std::move(render_frame_metadata_observer_client_receiver),
std::move(render_frame_metadata_observer));
}
bool RenderWidgetHostImpl::HasGestureStopped() {
if (delegate_ && delegate_->GetInputEventRouter() &&
delegate_->GetInputEventRouter()->HasEventsPendingDispatch()) {
return false;
}
if (input_router_->HasPendingEvents())
return false;
std::unique_ptr<RenderWidgetHostIterator> child_widgets(
GetEmbeddedRenderWidgetHosts());
while (RenderWidgetHost* child = child_widgets->GetNextHost()) {
auto* child_impl = static_cast<RenderWidgetHostImpl*>(child);
if (!child_impl->HasGestureStopped()) {
return false;
}
}
return true;
}
void RenderWidgetHostImpl::DidProcessFrame(uint32_t frame_token,
base::TimeTicks activation_time) {
frame_token_message_queue_->DidProcessFrame(frame_token, activation_time);
}
#if defined(OS_MAC)
device::mojom::WakeLock* RenderWidgetHostImpl::GetWakeLock() {
// Here is a lazy binding, and will not reconnect after connection error.
if (!wake_lock_) {
mojo::Remote<device::mojom::WakeLockProvider> wake_lock_provider;
GetDeviceService().BindWakeLockProvider(
wake_lock_provider.BindNewPipeAndPassReceiver());
wake_lock_provider->GetWakeLockWithoutContext(
device::mojom::WakeLockType::kPreventDisplaySleep,
device::mojom::WakeLockReason::kOther, "GetSnapshot",
wake_lock_.BindNewPipeAndPassReceiver());
}
return wake_lock_.get();
}
#endif
void RenderWidgetHostImpl::SetupInputRouter() {
in_flight_event_count_ = 0;
suppress_events_until_keydown_ = false;
monitoring_composition_info_ = false;
StopInputEventAckTimeout();
input_router_ = std::make_unique<InputRouterImpl>(
this, this, fling_scheduler_.get(), GetInputRouterConfigForPlatform());
// input_router_ recreated, need to update the force_enable_zoom_ state.
input_router_->SetForceEnableZoom(force_enable_zoom_);
if (IsUseZoomForDSFEnabled()) {
input_router_->SetDeviceScaleFactor(GetScaleFactorForView(view_.get()));
}
}
void RenderWidgetHostImpl::SetForceEnableZoom(bool enabled) {
force_enable_zoom_ = enabled;
input_router_->SetForceEnableZoom(enabled);
}
void RenderWidgetHostImpl::SetInputTargetClientForTesting(
mojo::Remote<viz::mojom::InputTargetClient> input_target_client) {
input_target_client_ = std::move(input_target_client);
}
void RenderWidgetHostImpl::ProgressFlingIfNeeded(base::TimeTicks current_time) {
fling_scheduler_->ProgressFlingOnBeginFrameIfneeded(current_time);
}
void RenderWidgetHostImpl::ForceFirstFrameAfterNavigationTimeout() {
if (!new_content_rendering_timeout_ ||
!new_content_rendering_timeout_->IsRunning()) {
return;
}
new_content_rendering_timeout_->Stop();
ClearDisplayedGraphics();
}
void RenderWidgetHostImpl::StopFling() {
input_router_->StopFling();
}
void RenderWidgetHostImpl::SetScreenOrientationForTesting(
uint16_t angle,
blink::mojom::ScreenOrientation type) {
screen_orientation_angle_for_testing_ = angle;
screen_orientation_type_for_testing_ = type;
SynchronizeVisualProperties();
}
bool RenderWidgetHostImpl::LockKeyboard() {
if (!keyboard_lock_allowed_ || !is_focused_ || !view_)
return false;
// KeyboardLock can be activated and deactivated several times per request,
// for example when a fullscreen tab loses and gains focus multiple times,
// so we need to retain a copy of the keys requested.
base::Optional<base::flat_set<ui::DomCode>> copy = keyboard_keys_to_lock_;
return view_->LockKeyboard(std::move(copy));
}
void RenderWidgetHostImpl::UnlockKeyboard() {
if (IsKeyboardLocked())
view_->UnlockKeyboard();
}
void RenderWidgetHostImpl::OnRenderFrameMetadataChangedBeforeActivation(
const cc::RenderFrameMetadata& metadata) {}
void RenderWidgetHostImpl::OnRenderFrameMetadataChangedAfterActivation(
base::TimeTicks activation_time) {
const auto& metadata =
render_frame_metadata_provider_.LastRenderFrameMetadata();
bool is_mobile_optimized = metadata.is_mobile_optimized;
input_router_->NotifySiteIsMobileOptimized(is_mobile_optimized);
if (auto* touch_emulator = GetExistingTouchEmulator())
touch_emulator->SetDoubleTapSupportForPageEnabled(!is_mobile_optimized);
// TODO(danakj): Can this method be called during WebContents destruction?
if (!delegate())
return;
// The root BrowserAccessibilityManager only is reachable if there's a
// delegate() still, ie we're not in shutdown. This can be null in tests.
BrowserAccessibilityManager* accessibility_manager =
GetRootBrowserAccessibilityManager();
if (accessibility_manager)
accessibility_manager->SetPageScaleFactor(metadata.page_scale_factor);
// The value |kNull| is only used to indicate an absence of vertical scroll
// direction and should therefore be ignored.
// Also, changes in vertical scroll direction are only propagated for main
// frames. If there is no |owner_delegate|, this is not a main frame.
if (metadata.new_vertical_scroll_direction !=
viz::VerticalScrollDirection::kNull &&
owner_delegate()) {
delegate()->OnVerticalScrollDirectionChanged(
metadata.new_vertical_scroll_direction);
}
}
std::vector<viz::SurfaceId>
RenderWidgetHostImpl::CollectSurfaceIdsForEviction() {
RenderViewHostImpl* rvh = RenderViewHostImpl::From(this);
// A corresponding RenderViewHostImpl may not exist in unit tests.
if (!rvh)
return {};
return rvh->CollectSurfaceIdsForEviction();
}
std::unique_ptr<RenderWidgetHostIterator>
RenderWidgetHostImpl::GetEmbeddedRenderWidgetHosts() {
// This iterates over all RenderWidgetHosts and returns those whose Views
// are children of this host's View.
auto hosts = std::make_unique<RenderWidgetHostIteratorImpl>();
auto* parent_view = static_cast<RenderWidgetHostViewBase*>(GetView());
for (auto& it : g_routing_id_widget_map.Get()) {
RenderWidgetHost* widget = it.second;
auto* view = static_cast<RenderWidgetHostViewBase*>(widget->GetView());
if (view && view->IsRenderWidgetHostViewChildFrame() &&
static_cast<RenderWidgetHostViewChildFrame*>(view)->GetParentView() ==
parent_view) {
hosts->Add(widget);
}
}
return std::move(hosts);
}
namespace {
bool TransformPointAndRectToRootView(RenderWidgetHostViewBase* view,
RenderWidgetHostViewBase* root_view,
gfx::Point* transformed_point,
gfx::Rect* transformed_rect) {
gfx::Transform transform_to_main_frame;
if (!view->GetTransformToViewCoordSpace(root_view, &transform_to_main_frame))
return false;
if (transformed_point)
transform_to_main_frame.TransformPoint(transformed_point);
if (transformed_rect) {
gfx::RectF transformed_rect_f(*transformed_rect);
transform_to_main_frame.TransformRect(&transformed_rect_f);
*transformed_rect = gfx::ToEnclosingRect(transformed_rect_f);
}
return true;
}
} // namespace
void RenderWidgetHostImpl::AnimateDoubleTapZoomInMainFrame(
const gfx::Point& point,
const gfx::Rect& rect_to_zoom) {
if (!view_)
return;
auto* root_view = view_->GetRootView();
gfx::Point transformed_point(point);
gfx::Rect transformed_rect_to_zoom(rect_to_zoom);
if (!TransformPointAndRectToRootView(view_.get(), root_view,
&transformed_point,
&transformed_rect_to_zoom)) {
return;
}
auto* root_rvhi = RenderViewHostImpl::From(root_view->GetRenderWidgetHost());
root_rvhi->AnimateDoubleTapZoom(transformed_point, transformed_rect_to_zoom);
}
void RenderWidgetHostImpl::ZoomToFindInPageRectInMainFrame(
const gfx::Rect& rect_to_zoom) {
if (!view_)
return;
auto* root_view = view_->GetRootView();
gfx::Rect transformed_rect_to_zoom(rect_to_zoom);
if (!TransformPointAndRectToRootView(view_.get(), root_view, nullptr,
&transformed_rect_to_zoom)) {
return;
}
auto* root_rvhi = RenderViewHostImpl::From(root_view->GetRenderWidgetHost());
root_rvhi->ZoomToFindInPageRect(transformed_rect_to_zoom);
}
void RenderWidgetHostImpl::SetHasTouchEventConsumers(
blink::mojom::TouchEventConsumersPtr consumers) {
input_router_->OnHasTouchEventConsumers(std::move(consumers));
}
void RenderWidgetHostImpl::IntrinsicSizingInfoChanged(
blink::mojom::IntrinsicSizingInfoPtr sizing_info) {
if (view_)
view_->UpdateIntrinsicSizingInfo(std::move(sizing_info));
}
gfx::Size RenderWidgetHostImpl::GetRootWidgetViewportSize() {
if (!view_)
return gfx::Size();
// if |view_| is RWHVCF and |frame_connector_| is destroyed, then call to
// GetRootView will return null pointer.
auto* root_view = view_->GetRootView();
if (!root_view)
return gfx::Size();
return root_view->GetVisibleViewportSize();
}
// This method was copied from RenderWidget::ConvertWindowToViewport() when
// porting drag-and-drop calls to Mojo, so that RenderWidgetHostImpl bypasses
// RenderWidget to talk the the WebFrameWidget and needs to perform the scale
// operation itself.
gfx::PointF RenderWidgetHostImpl::ConvertWindowPointToViewport(
const gfx::PointF& window_point) {
gfx::PointF viewport_point = window_point;
if (IsUseZoomForDSFEnabled())
viewport_point.Scale(GetScaleFactorForView(GetView()));
return viewport_point;
}
RenderWidgetHostImpl::MainFramePropagationProperties::
MainFramePropagationProperties() = default;
RenderWidgetHostImpl::MainFramePropagationProperties::
~MainFramePropagationProperties() = default;
} // namespace content