15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2010 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef PPAPI_CPP_DEV_ZOOM_DEV_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PPAPI_CPP_DEV_ZOOM_DEV_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/c/dev/ppp_zoom_dev.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/cpp/instance_handle.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace pp { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Instance; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This class allows you to associate the PPP_Zoom_Dev and PPB_Zoom_Dev C-based 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// interfaces with an object. It associates itself with the given instance, and 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// registers as the global handler for handling the PPP_Zoom_Dev interface that 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// the browser calls. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// You would typically use this either via inheritance on your instance: 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// class MyInstance : public pp::Instance, public pp::Zoom_Dev { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// class MyInstance() : pp::Zoom_Dev(this) { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// } 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ... 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// }; 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// or by composition: 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// class MyZoom : public pp::Zoom_Dev { 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ... 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// }; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// class MyInstance : public pp::Instance { 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// MyInstance() : zoom_(this) { 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// } 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// MyZoom zoom_; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// }; 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Zoom_Dev { 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit Zoom_Dev(Instance* instance); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~Zoom_Dev(); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // PPP_Zoom_Dev functions exposed as virtual functions for you to 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // override. 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void Zoom(double factor, bool text_only) = 0; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // PPB_Zoom_Def functions for you to call to report new zoom factor. 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void ZoomChanged(double factor); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void ZoomLimitsChanged(double minimum_factor, double maximium_factor); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) InstanceHandle associated_instance_; 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace pp 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // PPAPI_CPP_DEV_ZOOM_DEV_H_ 60