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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_DOM_DISTILLER_CONTENT_RENDERER_DISTILLER_NATIVE_JAVASCRIPT_H_
#define COMPONENTS_DOM_DISTILLER_CONTENT_RENDERER_DISTILLER_NATIVE_JAVASCRIPT_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/dom_distiller/content/common/mojom/distiller_javascript_service.mojom.h"
#include "content/public/renderer/render_frame.h"
#include "content/public/renderer/render_frame_observer.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "v8/include/v8.h"
namespace dom_distiller {
// This class is the primary interface for custom JavaScript introduced by the
// dom-distiller. Callbacks for JavaScript functionality and the communication
// channel to the browser process are maintained here.
class DistillerNativeJavaScript {
public:
explicit DistillerNativeJavaScript(content::RenderFrame* render_frame);
~DistillerNativeJavaScript();
// Add the "distiller" JavaScript object and its functions to the current
// |RenderFrame|.
void AddJavaScriptObjectToFrame(v8::Local<v8::Context> context);
private:
// Add a function to the provided object.
template <typename Sig>
void BindFunctionToObject(v8::Isolate* isolate,
v8::Local<v8::Object> javascript_object,
const std::string& name,
const base::RepeatingCallback<Sig>& callback);
// Make sure the mojo service is connected.
void EnsureServiceConnected();
// Wrappers to convert integer representations of the pref enums, then send
// the enum values to the browser process.
void StoreIntTheme(int theme);
void StoreIntFontFamily(int font_family);
void StoreFloatFontScaling(float font_scale);
raw_ptr<content::RenderFrame> render_frame_;
mojo::Remote<mojom::DistillerJavaScriptService> distiller_js_service_;
base::WeakPtrFactory<DistillerNativeJavaScript> weak_factory_{this};
};
// static
v8::Local<v8::Object> GetOrCreateDistillerObject(
v8::Isolate* isolate,
v8::Local<v8::Context> context);
} // namespace dom_distiller
#endif // COMPONENTS_DOM_DISTILLER_CONTENT_RENDERER_DISTILLER_NATIVE_JAVASCRIPT_H_
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