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// Copyright (c) 2010 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 PPAPI_CPP_DEV_ZOOM_DEV_H_
#define PPAPI_CPP_DEV_ZOOM_DEV_H_
#include <string>
#include "ppapi/c/dev/ppp_zoom_dev.h"
namespace pp {
class Instance;
// This class allows you to associate the PPP_Zoom_Dev and PPB_Zoom_Dev C-based
// interfaces with an object. It associates itself with the given instance, and
// registers as the global handler for handling the PPP_Zoom_Dev interface that
// the browser calls.
//
// You would typically use this either via inheritance on your instance:
// class MyInstance : public pp::Instance, public pp::Zoom_Dev {
// class MyInstance() : pp::Zoom_Dev(this) {
// }
// ...
// };
//
// or by composition:
// class MyZoom : public pp::Zoom_Dev {
// ...
// };
//
// class MyInstance : public pp::Instance {
// MyInstance() : zoom_(this) {
// }
//
// MyZoom zoom_;
// };
class Zoom_Dev {
public:
Zoom_Dev(Instance* instance);
virtual ~Zoom_Dev();
// PPP_Zoom_Dev functions exposed as virtual functions for you to
// override.
virtual void Zoom(double factor, bool text_only) = 0;
// PPB_Zoom_Def functions for you to call to report new zoom factor.
void ZoomChanged(double factor);
void ZoomLimitsChanged(double minimum_factor, double maximium_factor);
private:
Instance* associated_instance_;
};
} // namespace pp
#endif // PPAPI_CPP_DEV_ZOOM_DEV_H_
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