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// Copyright (c) 2012 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.
#ifndef CHROME_RENDERER_AUTOMATION_AUTOMATION_RENDERER_HELPER_H_
#define CHROME_RENDERER_AUTOMATION_AUTOMATION_RENDERER_HELPER_H_
#include <string>
#include <vector>
#include "base/memory/scoped_ptr.h"
#include "content/public/renderer/render_view_observer.h"
#include "content/public/renderer/render_view_observer_tracker.h"
namespace base {
class DictionaryValue;
}
namespace WebKit {
class WebFrame;
class WebURL;
class WebView;
}
struct AutomationMouseEvent;
struct ScriptEvaluationRequest;
// Filters automation/testing messages sent to a |RenderView| and sends
// automation/testing messages to the browser.
class AutomationRendererHelper : public content::RenderViewObserver {
public:
explicit AutomationRendererHelper(content::RenderView* render_view);
virtual ~AutomationRendererHelper();
// Takes a snapshot of the entire page without changing layout size.
bool SnapshotEntirePage(WebKit::WebView* view,
std::vector<unsigned char>* png_data,
std::string* error_msg);
// Evaluates a list of scripts. Each script must result in exactly
// one JavaScript object, which is passed to the next script as input.
// The final output is returned in |result|. If any JavaScript object
// contains an 'error' key, |error_msg| will be set to the corresponding
// value and the method will return false. If any script throws an exception,
// this method will return false with an appropriate error message.
// |script_chain| must not be empty.
bool EvaluateScriptChain(
const std::vector<ScriptEvaluationRequest>& script_chain,
scoped_ptr<base::DictionaryValue>* result,
std::string* error_msg);
// Processes the given event. On error, returns false and sets |error_msg|.
bool ProcessMouseEvent(const AutomationMouseEvent& event,
std::string* error_msg);
private:
void OnSnapshotEntirePage();
#if !defined(NO_TCMALLOC) && (defined(OS_LINUX) || defined(OS_CHROMEOS))
void OnHeapProfilerDump(const std::string& reason);
#endif
// RenderViewObserver implementation.
virtual bool OnMessageReceived(const IPC::Message& message);
virtual void WillPerformClientRedirect(
WebKit::WebFrame* frame, const WebKit::WebURL& from,
const WebKit::WebURL& to, double interval, double fire_time);
virtual void DidCancelClientRedirect(WebKit::WebFrame* frame);
virtual void DidCompleteClientRedirect(WebKit::WebFrame* frame,
const WebKit::WebURL& from);
virtual void OnProcessMouseEvent(const AutomationMouseEvent& event);
DISALLOW_COPY_AND_ASSIGN(AutomationRendererHelper);
};
#endif // CHROME_RENDERER_AUTOMATION_AUTOMATION_RENDERER_HELPER_H_
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