| // Copyright 2013 The Flutter 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 "flow/embedded_views.h" |
| #include "pointer_injector_delegate.h" |
| #define RAPIDJSON_HAS_STDSTRING 1 |
| |
| #include "platform_view.h" |
| |
| #include <algorithm> |
| #include <cstring> |
| #include <limits> |
| #include <sstream> |
| |
| #include "flutter/fml/logging.h" |
| #include "flutter/fml/make_copyable.h" |
| #include "flutter/lib/ui/window/pointer_data.h" |
| #include "flutter/lib/ui/window/window.h" |
| #include "flutter/shell/platform/common/client_wrapper/include/flutter/encodable_value.h" |
| #include "flutter/shell/platform/common/client_wrapper/include/flutter/standard_message_codec.h" |
| #include "third_party/rapidjson/include/rapidjson/document.h" |
| #include "third_party/rapidjson/include/rapidjson/stringbuffer.h" |
| #include "third_party/rapidjson/include/rapidjson/writer.h" |
| |
| #include "logging.h" |
| #include "runtime/dart/utils/inlines.h" |
| #include "text_delegate.h" |
| #include "vsync_waiter.h" |
| |
| namespace flutter_runner { |
| |
| static constexpr char kFlutterPlatformChannel[] = "flutter/platform"; |
| static constexpr char kAccessibilityChannel[] = "flutter/accessibility"; |
| static constexpr char kFlutterPlatformViewsChannel[] = "flutter/platform_views"; |
| static constexpr char kFuchsiaShaderWarmupChannel[] = "fuchsia/shader_warmup"; |
| |
| PlatformView::PlatformView( |
| bool is_flatland, |
| flutter::PlatformView::Delegate& delegate, |
| flutter::TaskRunners task_runners, |
| fuchsia::ui::views::ViewRef view_ref, |
| std::shared_ptr<flutter::ExternalViewEmbedder> external_view_embedder, |
| fuchsia::ui::input::ImeServiceHandle ime_service, |
| fuchsia::ui::input3::KeyboardHandle keyboard, |
| fuchsia::ui::pointer::TouchSourceHandle touch_source, |
| fuchsia::ui::pointer::MouseSourceHandle mouse_source, |
| fuchsia::ui::views::FocuserHandle focuser, |
| fuchsia::ui::views::ViewRefFocusedHandle view_ref_focused, |
| fuchsia::ui::pointerinjector::RegistryHandle pointerinjector_registry, |
| OnEnableWireframe wireframe_enabled_callback, |
| OnUpdateView on_update_view_callback, |
| OnCreateSurface on_create_surface_callback, |
| OnSemanticsNodeUpdate on_semantics_node_update_callback, |
| OnRequestAnnounce on_request_announce_callback, |
| OnShaderWarmup on_shader_warmup, |
| AwaitVsyncCallback await_vsync_callback, |
| AwaitVsyncForSecondaryCallbackCallback |
| await_vsync_for_secondary_callback_callback) |
| : flutter::PlatformView(delegate, std::move(task_runners)), |
| external_view_embedder_(external_view_embedder), |
| focus_delegate_( |
| std::make_shared<FocusDelegate>(std::move(view_ref_focused), |
| std::move(focuser))), |
| pointer_delegate_( |
| std::make_shared<PointerDelegate>(std::move(touch_source), |
| std::move(mouse_source))), |
| wireframe_enabled_callback_(std::move(wireframe_enabled_callback)), |
| on_update_view_callback_(std::move(on_update_view_callback)), |
| on_create_surface_callback_(std::move(on_create_surface_callback)), |
| on_semantics_node_update_callback_( |
| std::move(on_semantics_node_update_callback)), |
| on_request_announce_callback_(std::move(on_request_announce_callback)), |
| on_shader_warmup_(std::move(on_shader_warmup)), |
| await_vsync_callback_(await_vsync_callback), |
| await_vsync_for_secondary_callback_callback_( |
| await_vsync_for_secondary_callback_callback), |
| weak_factory_(this) { |
| fuchsia::ui::views::ViewRef view_ref_clone; |
| fidl::Clone(view_ref, &view_ref_clone); |
| |
| text_delegate_ = |
| std::make_unique<TextDelegate>( |
| std::move(view_ref), std::move(ime_service), std::move(keyboard), |
| [weak = weak_factory_.GetWeakPtr()]( |
| std::unique_ptr<flutter::PlatformMessage> message) { |
| if (!weak) { |
| FML_LOG(WARNING) |
| << "PlatformView use-after-free attempted. Ignoring."; |
| } |
| weak->delegate_.OnPlatformViewDispatchPlatformMessage( |
| std::move(message)); |
| }); |
| |
| // Begin watching for focus changes. |
| focus_delegate_->WatchLoop([weak = weak_factory_.GetWeakPtr()](bool focused) { |
| if (!weak) { |
| FML_LOG(WARNING) << "PlatformView use-after-free attempted. Ignoring."; |
| return; |
| } |
| |
| // Ensure last_text_state_ is set to make sure Flutter actually wants |
| // an IME. |
| if (focused && weak->text_delegate_->HasTextState()) { |
| weak->text_delegate_->ActivateIme(); |
| } else if (!focused) { |
| weak->text_delegate_->DeactivateIme(); |
| } |
| }); |
| |
| // Begin watching for pointer events. |
| if (is_flatland) { // TODO(fxbug.dev/85125): make unconditional |
| pointer_delegate_->WatchLoop([weak = weak_factory_.GetWeakPtr()]( |
| std::vector<flutter::PointerData> events) { |
| if (!weak) { |
| FML_LOG(WARNING) << "PlatformView use-after-free attempted. Ignoring."; |
| return; |
| } |
| |
| if (events.size() == 0) { |
| return; // No work, bounce out. |
| } |
| |
| // If pixel ratio hasn't been set, use a default value of 1. |
| const float pixel_ratio = weak->view_pixel_ratio_.value_or(1.f); |
| auto packet = std::make_unique<flutter::PointerDataPacket>(events.size()); |
| for (size_t i = 0; i < events.size(); ++i) { |
| auto& event = events[i]; |
| // Translate logical to physical coordinates, as per |
| // flutter::PointerData contract. Done here because pixel ratio comes |
| // from the graphics API. |
| event.physical_x = event.physical_x * pixel_ratio; |
| event.physical_y = event.physical_y * pixel_ratio; |
| packet->SetPointerData(i, event); |
| } |
| weak->DispatchPointerDataPacket(std::move(packet)); |
| }); |
| } |
| |
| // Configure the pointer injector delegate. |
| pointer_injector_delegate_ = std::make_unique<PointerInjectorDelegate>( |
| std::move(pointerinjector_registry), std::move(view_ref_clone), |
| is_flatland); |
| |
| // Finally! Register the native platform message handlers. |
| RegisterPlatformMessageHandlers(); |
| } |
| |
| PlatformView::~PlatformView() = default; |
| |
| void PlatformView::RegisterPlatformMessageHandlers() { |
| platform_message_handlers_[kFlutterPlatformChannel] = |
| std::bind(&PlatformView::HandleFlutterPlatformChannelPlatformMessage, |
| this, std::placeholders::_1); |
| platform_message_handlers_[kTextInputChannel] = |
| std::bind(&TextDelegate::HandleFlutterTextInputChannelPlatformMessage, |
| text_delegate_.get(), std::placeholders::_1); |
| platform_message_handlers_[kAccessibilityChannel] = |
| std::bind(&PlatformView::HandleAccessibilityChannelPlatformMessage, this, |
| std::placeholders::_1); |
| platform_message_handlers_[kFlutterPlatformViewsChannel] = |
| std::bind(&PlatformView::HandleFlutterPlatformViewsChannelPlatformMessage, |
| this, std::placeholders::_1); |
| platform_message_handlers_[kFuchsiaShaderWarmupChannel] = |
| std::bind(&HandleFuchsiaShaderWarmupChannelPlatformMessage, |
| on_shader_warmup_, std::placeholders::_1); |
| } |
| |
| static flutter::PointerData::Change GetChangeFromPointerEventPhase( |
| fuchsia::ui::input::PointerEventPhase phase) { |
| switch (phase) { |
| case fuchsia::ui::input::PointerEventPhase::ADD: |
| return flutter::PointerData::Change::kAdd; |
| case fuchsia::ui::input::PointerEventPhase::HOVER: |
| return flutter::PointerData::Change::kHover; |
| case fuchsia::ui::input::PointerEventPhase::DOWN: |
| return flutter::PointerData::Change::kDown; |
| case fuchsia::ui::input::PointerEventPhase::MOVE: |
| return flutter::PointerData::Change::kMove; |
| case fuchsia::ui::input::PointerEventPhase::UP: |
| return flutter::PointerData::Change::kUp; |
| case fuchsia::ui::input::PointerEventPhase::REMOVE: |
| return flutter::PointerData::Change::kRemove; |
| case fuchsia::ui::input::PointerEventPhase::CANCEL: |
| return flutter::PointerData::Change::kCancel; |
| default: |
| return flutter::PointerData::Change::kCancel; |
| } |
| } |
| |
| static flutter::PointerData::DeviceKind GetKindFromPointerType( |
| fuchsia::ui::input::PointerEventType type) { |
| switch (type) { |
| case fuchsia::ui::input::PointerEventType::TOUCH: |
| return flutter::PointerData::DeviceKind::kTouch; |
| case fuchsia::ui::input::PointerEventType::MOUSE: |
| return flutter::PointerData::DeviceKind::kMouse; |
| default: |
| return flutter::PointerData::DeviceKind::kTouch; |
| } |
| } |
| |
| // TODO(SCN-1278): Remove this. |
| // Turns two floats (high bits, low bits) into a 64-bit uint. |
| static trace_flow_id_t PointerTraceHACK(float fa, float fb) { |
| uint32_t ia, ib; |
| memcpy(&ia, &fa, sizeof(uint32_t)); |
| memcpy(&ib, &fb, sizeof(uint32_t)); |
| return (((uint64_t)ia) << 32) | ib; |
| } |
| |
| // For certain scenarios that must avoid floating-point drift, compute a |
| // coordinate that falls within the logical view bounding box. |
| std::array<float, 2> PlatformView::ClampToViewSpace(const float x, |
| const float y) const { |
| if (!view_logical_size_.has_value() || !view_logical_origin_.has_value()) { |
| return {x, y}; // If we can't do anything, return the original values. |
| } |
| |
| const auto origin = view_logical_origin_.value(); |
| const auto size = view_logical_size_.value(); |
| const float min_x = origin[0]; |
| const float max_x = origin[0] + size[0]; |
| const float min_y = origin[1]; |
| const float max_y = origin[1] + size[1]; |
| if (min_x <= x && x < max_x && min_y <= y && y < max_y) { |
| return {x, y}; // No clamping to perform. |
| } |
| |
| // View boundary is [min_x, max_x) x [min_y, max_y). Note that min is |
| // inclusive, but max is exclusive - so we subtract epsilon. |
| const float max_x_inclusive = max_x - std::numeric_limits<float>::epsilon(); |
| const float max_y_inclusive = max_y - std::numeric_limits<float>::epsilon(); |
| const float& clamped_x = std::clamp(x, min_x, max_x_inclusive); |
| const float& clamped_y = std::clamp(y, min_y, max_y_inclusive); |
| FML_LOG(INFO) << "Clamped (" << x << ", " << y << ") to (" << clamped_x |
| << ", " << clamped_y << ")."; |
| return {clamped_x, clamped_y}; |
| } |
| |
| bool PlatformView::OnHandlePointerEvent( |
| const fuchsia::ui::input::PointerEvent& pointer) { |
| TRACE_EVENT0("flutter", "PlatformView::OnHandlePointerEvent"); |
| |
| // TODO(SCN-1278): Use proper trace_id for tracing flow. |
| trace_flow_id_t trace_id = |
| PointerTraceHACK(pointer.radius_major, pointer.radius_minor); |
| TRACE_FLOW_END("input", "dispatch_event_to_client", trace_id); |
| |
| const float pixel_ratio = |
| view_pixel_ratio_.has_value() ? *view_pixel_ratio_ : 0.f; |
| |
| flutter::PointerData pointer_data; |
| pointer_data.Clear(); |
| pointer_data.time_stamp = pointer.event_time / 1000; |
| pointer_data.change = GetChangeFromPointerEventPhase(pointer.phase); |
| pointer_data.kind = GetKindFromPointerType(pointer.type); |
| pointer_data.device = pointer.pointer_id; |
| // Pointer events are in logical pixels, so scale to physical. |
| pointer_data.physical_x = pointer.x * pixel_ratio; |
| pointer_data.physical_y = pointer.y * pixel_ratio; |
| // Buttons are single bit values starting with kMousePrimaryButton = 1. |
| pointer_data.buttons = static_cast<uint64_t>(pointer.buttons); |
| |
| switch (pointer_data.change) { |
| case flutter::PointerData::Change::kDown: { |
| // Make the pointer start in the view space, despite numerical drift. |
| auto clamped_pointer = ClampToViewSpace(pointer.x, pointer.y); |
| pointer_data.physical_x = clamped_pointer[0] * pixel_ratio; |
| pointer_data.physical_y = clamped_pointer[1] * pixel_ratio; |
| |
| down_pointers_.insert(pointer_data.device); |
| break; |
| } |
| case flutter::PointerData::Change::kCancel: |
| case flutter::PointerData::Change::kUp: |
| down_pointers_.erase(pointer_data.device); |
| break; |
| case flutter::PointerData::Change::kMove: |
| if (down_pointers_.count(pointer_data.device) == 0) { |
| pointer_data.change = flutter::PointerData::Change::kHover; |
| } |
| break; |
| case flutter::PointerData::Change::kAdd: |
| if (down_pointers_.count(pointer_data.device) != 0) { |
| FML_LOG(ERROR) << "Received add event for down pointer."; |
| } |
| break; |
| case flutter::PointerData::Change::kRemove: |
| if (down_pointers_.count(pointer_data.device) != 0) { |
| FML_LOG(ERROR) << "Received remove event for down pointer."; |
| } |
| break; |
| case flutter::PointerData::Change::kHover: |
| if (down_pointers_.count(pointer_data.device) != 0) { |
| FML_LOG(ERROR) << "Received hover event for down pointer."; |
| } |
| break; |
| case flutter::PointerData::Change::kPanZoomStart: |
| case flutter::PointerData::Change::kPanZoomUpdate: |
| case flutter::PointerData::Change::kPanZoomEnd: |
| FML_DLOG(ERROR) << "Unexpectedly received pointer pan/zoom event"; |
| break; |
| } |
| |
| auto packet = std::make_unique<flutter::PointerDataPacket>(1); |
| packet->SetPointerData(0, pointer_data); |
| DispatchPointerDataPacket(std::move(packet)); |
| return true; |
| } |
| |
| // |flutter::PlatformView| |
| std::unique_ptr<flutter::VsyncWaiter> PlatformView::CreateVSyncWaiter() { |
| return std::make_unique<flutter_runner::VsyncWaiter>( |
| await_vsync_callback_, await_vsync_for_secondary_callback_callback_, |
| task_runners_); |
| } |
| |
| // |flutter::PlatformView| |
| std::unique_ptr<flutter::Surface> PlatformView::CreateRenderingSurface() { |
| return on_create_surface_callback_ ? on_create_surface_callback_() : nullptr; |
| } |
| |
| // |flutter::PlatformView| |
| std::shared_ptr<flutter::ExternalViewEmbedder> |
| PlatformView::CreateExternalViewEmbedder() { |
| return external_view_embedder_; |
| } |
| |
| // |flutter::PlatformView| |
| void PlatformView::HandlePlatformMessage( |
| std::unique_ptr<flutter::PlatformMessage> message) { |
| if (!message) { |
| return; |
| } |
| const std::string channel = message->channel(); |
| auto found = platform_message_handlers_.find(channel); |
| if (found == platform_message_handlers_.end()) { |
| const bool already_errored = unregistered_channels_.count(channel); |
| if (!already_errored) { |
| FML_LOG(INFO) |
| << "Platform view received message on channel '" << message->channel() |
| << "' with no registered handler. An empty response will be " |
| "generated. Please implement the native message handler. This " |
| "message will appear only once per channel."; |
| unregistered_channels_.insert(channel); |
| } |
| flutter::PlatformView::HandlePlatformMessage(std::move(message)); |
| return; |
| } |
| auto response = message->response(); |
| bool response_handled = found->second(std::move(message)); |
| |
| // Ensure all responses are completed. |
| if (response && !response_handled) { |
| // response_handled should be true if the response was completed. |
| FML_DCHECK(!response->is_complete()); |
| response->CompleteEmpty(); |
| } |
| } |
| |
| // |flutter::PlatformView| |
| void PlatformView::SetSemanticsEnabled(bool enabled) { |
| flutter::PlatformView::SetSemanticsEnabled(enabled); |
| if (enabled) { |
| SetAccessibilityFeatures(static_cast<int32_t>( |
| flutter::AccessibilityFeatureFlag::kAccessibleNavigation)); |
| } else { |
| SetAccessibilityFeatures(0); |
| } |
| } |
| |
| // |flutter::PlatformView| |
| void PlatformView::UpdateSemantics( |
| flutter::SemanticsNodeUpdates update, |
| flutter::CustomAccessibilityActionUpdates actions) { |
| const float pixel_ratio = |
| view_pixel_ratio_.has_value() ? *view_pixel_ratio_ : 0.f; |
| |
| on_semantics_node_update_callback_(update, pixel_ratio); |
| } |
| |
| // Channel handler for kAccessibilityChannel |
| bool PlatformView::HandleAccessibilityChannelPlatformMessage( |
| std::unique_ptr<flutter::PlatformMessage> message) { |
| FML_DCHECK(message->channel() == kAccessibilityChannel); |
| |
| const flutter::StandardMessageCodec& standard_message_codec = |
| flutter::StandardMessageCodec::GetInstance(nullptr); |
| std::unique_ptr<flutter::EncodableValue> decoded = |
| standard_message_codec.DecodeMessage(message->data().GetMapping(), |
| message->data().GetSize()); |
| |
| flutter::EncodableMap map = std::get<flutter::EncodableMap>(*decoded); |
| std::string type = |
| std::get<std::string>(map.at(flutter::EncodableValue("type"))); |
| if (type == "announce") { |
| flutter::EncodableMap data_map = std::get<flutter::EncodableMap>( |
| map.at(flutter::EncodableValue("data"))); |
| std::string text = |
| std::get<std::string>(data_map.at(flutter::EncodableValue("message"))); |
| |
| on_request_announce_callback_(text); |
| } |
| |
| // Complete with an empty response. |
| return false; |
| } |
| |
| // Channel handler for kFlutterPlatformChannel |
| bool PlatformView::HandleFlutterPlatformChannelPlatformMessage( |
| std::unique_ptr<flutter::PlatformMessage> message) { |
| FML_DCHECK(message->channel() == kFlutterPlatformChannel); |
| |
| // Fuchsia does not handle any platform messages at this time. |
| |
| // Complete with an empty response. |
| return false; |
| } |
| |
| bool PlatformView::HandleFlutterPlatformViewsChannelPlatformMessage( |
| std::unique_ptr<flutter::PlatformMessage> message) { |
| FML_DCHECK(message->channel() == kFlutterPlatformViewsChannel); |
| const auto& data = message->data(); |
| rapidjson::Document document; |
| document.Parse(reinterpret_cast<const char*>(data.GetMapping()), |
| data.GetSize()); |
| if (document.HasParseError() || !document.IsObject()) { |
| FML_LOG(ERROR) << "Could not parse document"; |
| return false; |
| } |
| auto root = document.GetObject(); |
| auto method_member = root.FindMember("method"); |
| if (method_member == root.MemberEnd() || !method_member->value.IsString()) { |
| return false; |
| } |
| std::string method(method_member->value.GetString()); |
| |
| if (method == "View.enableWireframe") { |
| auto args_it = root.FindMember("args"); |
| if (args_it == root.MemberEnd() || !args_it->value.IsObject()) { |
| FML_LOG(ERROR) << "No arguments found."; |
| return false; |
| } |
| const auto& args = args_it->value; |
| |
| auto enable = args.FindMember("enable"); |
| if (!enable->value.IsBool()) { |
| FML_LOG(ERROR) << "Argument 'enable' is not a bool"; |
| return false; |
| } |
| |
| wireframe_enabled_callback_(enable->value.GetBool()); |
| } else if (method == "View.create") { |
| auto args_it = root.FindMember("args"); |
| if (args_it == root.MemberEnd() || !args_it->value.IsObject()) { |
| FML_LOG(ERROR) << "No arguments found."; |
| return false; |
| } |
| const auto& args = args_it->value; |
| |
| auto view_id = args.FindMember("viewId"); |
| if (!view_id->value.IsUint64()) { |
| FML_LOG(ERROR) << "Argument 'viewId' is not a int64"; |
| return false; |
| } |
| |
| auto hit_testable = args.FindMember("hitTestable"); |
| if (!hit_testable->value.IsBool()) { |
| FML_LOG(ERROR) << "Argument 'hitTestable' is not a bool"; |
| return false; |
| } |
| |
| auto focusable = args.FindMember("focusable"); |
| if (!focusable->value.IsBool()) { |
| FML_LOG(ERROR) << "Argument 'focusable' is not a bool"; |
| return false; |
| } |
| |
| auto on_view_created = fml::MakeCopyable( |
| [platform_task_runner = task_runners_.GetPlatformTaskRunner(), |
| message = std::move(message)]() { |
| // The client is waiting for view creation. Send an empty response |
| // back to signal the view was created. |
| if (message->response()) { |
| message->response()->Complete(std::make_unique<fml::DataMapping>( |
| std::vector<uint8_t>({'[', '0', ']'}))); |
| } |
| }); |
| OnCreateView(std::move(on_view_created), view_id->value.GetUint64(), |
| hit_testable->value.GetBool(), focusable->value.GetBool()); |
| return true; |
| } else if (method == "View.update") { |
| auto args_it = root.FindMember("args"); |
| if (args_it == root.MemberEnd() || !args_it->value.IsObject()) { |
| FML_LOG(ERROR) << "No arguments found."; |
| return false; |
| } |
| const auto& args = args_it->value; |
| |
| auto view_id = args.FindMember("viewId"); |
| if (!view_id->value.IsUint64()) { |
| FML_LOG(ERROR) << "Argument 'viewId' is not a int64"; |
| return false; |
| } |
| |
| auto hit_testable = args.FindMember("hitTestable"); |
| if (!hit_testable->value.IsBool()) { |
| FML_LOG(ERROR) << "Argument 'hitTestable' is not a bool"; |
| return false; |
| } |
| |
| auto focusable = args.FindMember("focusable"); |
| if (!focusable->value.IsBool()) { |
| FML_LOG(ERROR) << "Argument 'focusable' is not a bool"; |
| return false; |
| } |
| |
| SkRect view_occlusion_hint_raw = SkRect::MakeEmpty(); |
| auto view_occlusion_hint = args.FindMember("viewOcclusionHintLTRB"); |
| if (view_occlusion_hint != args.MemberEnd()) { |
| if (view_occlusion_hint->value.IsArray()) { |
| const auto& view_occlusion_hint_array = |
| view_occlusion_hint->value.GetArray(); |
| if (view_occlusion_hint_array.Size() == 4) { |
| bool parse_error = false; |
| for (int i = 0; i < 4; i++) { |
| auto& array_val = view_occlusion_hint_array[i]; |
| if (!array_val.IsDouble()) { |
| FML_LOG(ERROR) << "Argument 'viewOcclusionHintLTRB' element " << i |
| << " is not a double"; |
| parse_error = true; |
| break; |
| } |
| } |
| |
| if (!parse_error) { |
| view_occlusion_hint_raw = |
| SkRect::MakeLTRB(view_occlusion_hint_array[0].GetDouble(), |
| view_occlusion_hint_array[1].GetDouble(), |
| view_occlusion_hint_array[2].GetDouble(), |
| view_occlusion_hint_array[3].GetDouble()); |
| } |
| } else { |
| FML_LOG(ERROR) |
| << "Argument 'viewOcclusionHintLTRB' expected size 4; got " |
| << view_occlusion_hint_array.Size(); |
| } |
| } else { |
| FML_LOG(ERROR) |
| << "Argument 'viewOcclusionHintLTRB' is not a double array"; |
| } |
| } else { |
| FML_LOG(WARNING) << "Argument 'viewOcclusionHintLTRB' is missing"; |
| } |
| |
| on_update_view_callback_( |
| view_id->value.GetUint64(), view_occlusion_hint_raw, |
| hit_testable->value.GetBool(), focusable->value.GetBool()); |
| if (message->response()) { |
| message->response()->Complete(std::make_unique<fml::DataMapping>( |
| std::vector<uint8_t>({'[', '0', ']'}))); |
| return true; |
| } |
| } else if (method == "View.dispose") { |
| auto args_it = root.FindMember("args"); |
| if (args_it == root.MemberEnd() || !args_it->value.IsObject()) { |
| FML_LOG(ERROR) << "No arguments found."; |
| return false; |
| } |
| const auto& args = args_it->value; |
| |
| auto view_id = args.FindMember("viewId"); |
| if (!view_id->value.IsUint64()) { |
| FML_LOG(ERROR) << "Argument 'viewId' is not a int64"; |
| return false; |
| } |
| |
| OnDisposeView(view_id->value.GetUint64()); |
| if (message->response()) { |
| message->response()->Complete(std::make_unique<fml::DataMapping>( |
| std::vector<uint8_t>({'[', '0', ']'}))); |
| return true; |
| } |
| } else if (method.rfind("View.focus", 0) == 0) { |
| return focus_delegate_->HandlePlatformMessage(root, message->response()); |
| } else if (method.rfind(PointerInjectorDelegate::kPointerInjectorMethodPrefix, |
| 0) == 0) { |
| return pointer_injector_delegate_->HandlePlatformMessage( |
| root, message->response()); |
| } else { |
| FML_LOG(ERROR) << "Unknown " << message->channel() << " method " << method; |
| } |
| // Complete with an empty response by default. |
| return false; |
| } |
| |
| bool PlatformView::HandleFuchsiaShaderWarmupChannelPlatformMessage( |
| OnShaderWarmup on_shader_warmup, |
| std::unique_ptr<flutter::PlatformMessage> message) { |
| FML_DCHECK(message->channel() == kFuchsiaShaderWarmupChannel); |
| |
| if (!on_shader_warmup) { |
| FML_LOG(ERROR) << "No shader warmup callback set!"; |
| std::string result = "[0]"; |
| message->response()->Complete( |
| std::make_unique<fml::DataMapping>(std::vector<uint8_t>( |
| (const uint8_t*)result.c_str(), |
| (const uint8_t*)result.c_str() + result.length()))); |
| return true; |
| } |
| |
| const auto& data = message->data(); |
| rapidjson::Document document; |
| document.Parse(reinterpret_cast<const char*>(data.GetMapping()), |
| data.GetSize()); |
| if (document.HasParseError() || !document.IsObject()) { |
| FML_LOG(ERROR) << "Could not parse document"; |
| return false; |
| } |
| auto root = document.GetObject(); |
| auto method = root.FindMember("method"); |
| if (method == root.MemberEnd() || !method->value.IsString() || |
| method->value != "WarmupSkps") { |
| FML_LOG(ERROR) << "Invalid method name"; |
| return false; |
| } |
| |
| auto args_it = root.FindMember("args"); |
| if (args_it == root.MemberEnd() || !args_it->value.IsObject()) { |
| FML_LOG(ERROR) << "No arguments found."; |
| return false; |
| } |
| |
| auto shaders_it = root["args"].FindMember("shaders"); |
| if (shaders_it == root["args"].MemberEnd() || !shaders_it->value.IsArray()) { |
| FML_LOG(ERROR) << "No shaders found."; |
| return false; |
| } |
| |
| auto width_it = root["args"].FindMember("width"); |
| auto height_it = root["args"].FindMember("height"); |
| if (width_it == root["args"].MemberEnd() || !width_it->value.IsNumber()) { |
| FML_LOG(ERROR) << "Invalid width"; |
| return false; |
| } |
| if (height_it == root["args"].MemberEnd() || !height_it->value.IsNumber()) { |
| FML_LOG(ERROR) << "Invalid height"; |
| return false; |
| } |
| auto width = width_it->value.GetUint64(); |
| auto height = height_it->value.GetUint64(); |
| |
| std::vector<std::string> skp_paths; |
| const auto& shaders = shaders_it->value; |
| for (rapidjson::Value::ConstValueIterator itr = shaders.Begin(); |
| itr != shaders.End(); ++itr) { |
| skp_paths.push_back((*itr).GetString()); |
| } |
| |
| auto completion_callback = [response = |
| message->response()](uint num_successes) { |
| std::ostringstream result_stream; |
| result_stream << "[" << num_successes << "]"; |
| |
| std::string result(result_stream.str()); |
| |
| response->Complete(std::make_unique<fml::DataMapping>(std::vector<uint8_t>( |
| (const uint8_t*)result.c_str(), |
| (const uint8_t*)result.c_str() + result.length()))); |
| }; |
| |
| on_shader_warmup(skp_paths, completion_callback, width, height); |
| // The response has already been completed by us. |
| return true; |
| } |
| |
| } // namespace flutter_runner |
