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// Copyright 2014 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 "components/html_viewer/test_html_viewer_impl.h"
#include "base/json/json_writer.h"
#include "base/stl_util.h"
#include "base/values.h"
#include "gin/converter.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebLocalFrame.h"
#include "third_party/WebKit/public/web/WebScriptExecutionCallback.h"
#include "third_party/WebKit/public/web/WebScriptSource.h"
using blink::WebDocument;
using blink::WebFrame;
namespace html_viewer {
namespace {
std::string V8ValueToJSONString(
blink::WebLocalFrame* local_frame,
const blink::WebVector<v8::Local<v8::Value>>& result) {
// TODO(sky): use V8ValueConverter when refactored to a common place.
DCHECK(!result.isEmpty());
base::ListValue list_value;
for (auto& value : result)
list_value.Append(new base::StringValue(gin::V8ToString(value)));
std::string json_string;
return base::JSONWriter::Write(list_value, &json_string) ? json_string
: std::string();
}
} // namespace
class TestHTMLViewerImpl::ExecutionCallbackImpl
: public blink::WebScriptExecutionCallback {
public:
ExecutionCallbackImpl(TestHTMLViewerImpl* host,
const mojo::Callback<void(mojo::String)>& callback)
: host_(host), callback_(callback) {}
virtual ~ExecutionCallbackImpl() {}
private:
// blink::WebScriptExecutionCallback:
virtual void completed(const blink::WebVector<v8::Local<v8::Value>>& result) {
mojo::String callback_result;
if (!result.isEmpty())
callback_result = V8ValueToJSONString(host_->web_frame_, result);
callback_.Run(callback_result);
host_->CallbackCompleted(this);
}
TestHTMLViewerImpl* host_;
const mojo::Callback<void(mojo::String)> callback_;
DISALLOW_COPY_AND_ASSIGN(ExecutionCallbackImpl);
};
TestHTMLViewerImpl::TestHTMLViewerImpl(
blink::WebLocalFrame* web_frame,
mojo::InterfaceRequest<TestHTMLViewer> request)
: web_frame_(web_frame), binding_(this, request.Pass()) {}
TestHTMLViewerImpl::~TestHTMLViewerImpl() {
STLDeleteElements(&callbacks_);
}
void TestHTMLViewerImpl::CallbackCompleted(
ExecutionCallbackImpl* callback_impl) {
scoped_ptr<ExecutionCallbackImpl> owned_callback_impl(callback_impl);
callbacks_.erase(callback_impl);
}
void TestHTMLViewerImpl::GetContentAsText(
const GetContentAsTextCallback& callback) {
callback.Run(web_frame_->document().contentAsTextForTesting().utf8());
}
void TestHTMLViewerImpl::ExecuteScript(const mojo::String& script,
const ExecuteScriptCallback& callback) {
ExecutionCallbackImpl* callback_impl =
new ExecutionCallbackImpl(this, callback);
callbacks_.insert(callback_impl);
web_frame_->requestExecuteScriptAndReturnValue(
blink::WebScriptSource(blink::WebString::fromUTF8(script)), false,
callback_impl);
}
} // namespace html_viewer
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