15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 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 CHROME_BROWSER_PRINTING_PRINT_PREVIEW_DATA_SERVICE_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CHROME_BROWSER_PRINTING_PRINT_PREVIEW_DATA_SERVICE_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <map> 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string> 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/ref_counted.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template<typename T> struct DefaultSingletonTraits; 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class PrintPreviewDataStore; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace base { 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class RefCountedBytes; 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// PrintPreviewDataService manages data stores for chrome://print requests. 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// It owns the data store object and is responsible for freeing it. 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class PrintPreviewDataService { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static PrintPreviewDataService* GetInstance(); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Get the data entry from PrintPreviewDataStore. |index| is zero-based or 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // |printing::COMPLETE_PREVIEW_DOCUMENT_INDEX| to represent complete preview 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // data. Use |index| to retrieve a specific preview page data. |data| is set 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to NULL if the requested page is not yet available. 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void GetDataEntry(int32 preview_ui_id, int index, 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<base::RefCountedBytes>* data); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set/Update the data entry in PrintPreviewDataStore. |index| is zero-based 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // or |printing::COMPLETE_PREVIEW_DOCUMENT_INDEX| to represent complete 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // preview data. Use |index| to set/update a specific preview page data. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // NOTE: PrintPreviewDataStore owns the data. Do not refcount |data| before 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // calling this function. It will be refcounted in PrintPreviewDataStore. 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void SetDataEntry(int32 preview_ui_id, int index, 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const base::RefCountedBytes* data); 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Remove the corresponding PrintPreviewUI entry from the map. 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void RemoveEntry(int32 preview_ui_id); 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns the available draft page count. 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int GetAvailableDraftPageCount(int32 preview_ui_id); 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) friend struct DefaultSingletonTraits<PrintPreviewDataService>; 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // 1:1 relationship between PrintPreviewUI and data store object. 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Key: PrintPreviewUI ID. 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Value: Print preview data store object. 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef std::map<int32, scoped_refptr<PrintPreviewDataStore> > 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PreviewDataStoreMap; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PrintPreviewDataService(); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~PrintPreviewDataService(); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PreviewDataStoreMap data_store_map_; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(PrintPreviewDataService); 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CHROME_BROWSER_PRINTING_PRINT_PREVIEW_DATA_SERVICE_H_ 66