Pavel Beloborodov
5bc26e0b99
* Added nullptr check for render_frame(). * More accurate way to use RenderFrame in SpeedreaderJsHandler.
95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
/* Copyright (c) 2022 The Brave Authors. All rights reserved.
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "brave/components/speedreader/renderer/speedreader_js_handler.h"
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#include <utility>
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#include "brave/components/speedreader/common/constants.h"
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#include "brave/components/speedreader/common/speedreader.mojom.h"
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#include "brave/components/speedreader/renderer/speedreader_render_frame_observer.h"
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#include "content/public/renderer/render_frame.h"
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#include "gin/converter.h"
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#include "gin/handle.h"
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#include "gin/object_template_builder.h"
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#include "gin/wrappable.h"
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#include "mojo/public/cpp/bindings/associated_remote.h"
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#include "third_party/blink/public/common/associated_interfaces/associated_interface_provider.h"
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#include "third_party/blink/public/web/blink.h"
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#include "third_party/blink/public/web/web_local_frame.h"
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namespace {
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constexpr const char kSpeedreader[] = "speedreader";
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}
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namespace speedreader {
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gin::WrapperInfo SpeedreaderJSHandler::kWrapperInfo = {gin::kEmbedderNativeGin};
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SpeedreaderJSHandler::SpeedreaderJSHandler(
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base::WeakPtr<SpeedreaderRenderFrameObserver> owner)
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: owner_(std::move(owner)) {}
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SpeedreaderJSHandler::~SpeedreaderJSHandler() = default;
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// static
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void SpeedreaderJSHandler::Install(
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base::WeakPtr<SpeedreaderRenderFrameObserver> owner) {
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DCHECK(owner);
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v8::Isolate* isolate = blink::MainThreadIsolate();
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v8::HandleScope handle_scope(isolate);
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v8::Local<v8::Context> context =
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owner->render_frame()->GetWebFrame()->GetScriptContextFromWorldId(
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isolate, kIsolatedWorldId);
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if (context.IsEmpty())
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return;
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v8::Context::Scope context_scope(context);
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v8::Local<v8::Object> global = context->Global();
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// check object existence
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v8::Local<v8::Value> speedreader_value =
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global->Get(context, gin::StringToV8(isolate, kSpeedreader))
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.ToLocalChecked();
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if (!speedreader_value->IsUndefined())
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return;
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gin::Handle<SpeedreaderJSHandler> handler =
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gin::CreateHandle(isolate, new SpeedreaderJSHandler(std::move(owner)));
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if (handler.IsEmpty())
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return;
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v8::PropertyDescriptor desc(handler.ToV8(), false);
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desc.set_configurable(false);
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global
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->DefineProperty(isolate->GetCurrentContext(),
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gin::StringToV8(isolate, kSpeedreader), desc)
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.Check();
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}
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gin::ObjectTemplateBuilder SpeedreaderJSHandler::GetObjectTemplateBuilder(
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v8::Isolate* isolate) {
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return gin::Wrappable<SpeedreaderJSHandler>::GetObjectTemplateBuilder(isolate)
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.SetMethod("showOriginalPage", &SpeedreaderJSHandler::ShowOriginalPage);
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}
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void SpeedreaderJSHandler::ShowOriginalPage(v8::Isolate* isolate) {
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DCHECK(isolate);
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if (!owner_)
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return;
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mojo::AssociatedRemote<speedreader::mojom::SpeedreaderHost> speedreader_host;
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owner_->render_frame()->GetRemoteAssociatedInterfaces()->GetInterface(
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&speedreader_host);
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if (speedreader_host.is_bound()) {
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speedreader_host->OnShowOriginalPage();
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}
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}
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} // namespace speedreader
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