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0c03d1c560
This patch changes how we lookup native functions from Dart to be more extensible. This patch paves the way for removing the dart:ui_internals library.
122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "sky/shell/ui/internals.h"
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#include "base/threading/worker_pool.h"
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#include "mojo/public/cpp/application/connect.h"
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#include "mojo/public/cpp/bindings/array.h"
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#include "services/asset_bundle/asset_unpacker_impl.h"
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#include "sky/engine/tonic/dart_converter.h"
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#include "sky/engine/tonic/dart_error.h"
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#include "sky/engine/tonic/dart_library_natives.h"
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#include "sky/engine/tonic/dart_state.h"
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using namespace blink;
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namespace sky {
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namespace shell {
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namespace {
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int kInternalsKey = 0;
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Internals* GetInternals() {
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DartState* state = DartState::Current();
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return static_cast<Internals*>(state->GetUserData(&kInternalsKey));
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}
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void TakeRootBundleHandle(Dart_NativeArguments args) {
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Dart_SetIntegerReturnValue(
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args, GetInternals()->TakeRootBundleHandle().value());
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}
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void TakeShellProxyHandle(Dart_NativeArguments args) {
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Dart_SetIntegerReturnValue(args, 0);
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}
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void TakeServicesProvidedByEmbedder(Dart_NativeArguments args) {
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Dart_SetIntegerReturnValue(
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args, GetInternals()->TakeServicesProvidedByEmbedder().value());
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}
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void TakeServicesProvidedToEmbedder(Dart_NativeArguments args) {
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Dart_SetIntegerReturnValue(args, 0);
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}
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void TakeServiceRegistry(Dart_NativeArguments args) {
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Dart_SetIntegerReturnValue(args, 0);
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}
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static DartLibraryNatives* g_natives;
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void EnsureNatives() {
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if (g_natives)
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return;
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g_natives = new DartLibraryNatives();
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g_natives->Register({
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{"takeRootBundleHandle", TakeRootBundleHandle, 0, true},
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{"takeServiceRegistry", TakeServiceRegistry, 0, true},
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{"takeServicesProvidedByEmbedder", TakeServicesProvidedByEmbedder, 0, true},
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{"takeServicesProvidedToEmbedder", TakeServicesProvidedToEmbedder, 0, true},
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{"takeShellProxyHandle", TakeShellProxyHandle, 0, true},
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});
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}
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Dart_NativeFunction GetNativeFunction(Dart_Handle name,
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int argument_count,
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bool* auto_setup_scope) {
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return g_natives->GetNativeFunction(name, argument_count, auto_setup_scope);
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}
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const uint8_t* GetSymbol(Dart_NativeFunction native_function) {
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return g_natives->GetSymbol(native_function);
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}
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} // namespace
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void Internals::Create(Dart_Isolate isolate,
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mojo::ServiceProviderPtr service_provider,
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mojo::asset_bundle::AssetBundlePtr root_bundle) {
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EnsureNatives();
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DartState* state = DartState::From(isolate);
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state->SetUserData(&kInternalsKey, new Internals(service_provider.Pass(),
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root_bundle.Pass()));
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Dart_Handle library = Dart_LookupLibrary(ToDart("dart:ui_internals"));
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CHECK(!LogIfError(library));
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CHECK(!LogIfError(Dart_SetNativeResolver(
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library, GetNativeFunction, GetSymbol)));
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}
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Internals::Internals(mojo::ServiceProviderPtr platform_service_provider,
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mojo::asset_bundle::AssetBundlePtr root_bundle)
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: root_bundle_(root_bundle.Pass()),
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service_provider_impl_(GetProxy(&service_provider_)),
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platform_service_provider_(platform_service_provider.Pass()) {
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service_provider_impl_.set_fallback_service_provider(
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platform_service_provider_.get());
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service_provider_impl_.AddService<mojo::asset_bundle::AssetUnpacker>(this);
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}
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Internals::~Internals() {
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}
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void Internals::Create(
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mojo::ApplicationConnection* connection,
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mojo::InterfaceRequest<mojo::asset_bundle::AssetUnpacker> request) {
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new mojo::asset_bundle::AssetUnpackerImpl(
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request.Pass(), base::WorkerPool::GetTaskRunner(true));
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}
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mojo::Handle Internals::TakeServicesProvidedByEmbedder() {
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return service_provider_.PassInterface().PassHandle().release();
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}
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mojo::Handle Internals::TakeRootBundleHandle() {
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return root_bundle_.PassInterface().PassHandle().release();
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}
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} // namespace shell
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} // namespace sky
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