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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef APP_OS_EXCHANGE_DATA_PROVIDER_GTK_H_ | |
| 6 #define APP_OS_EXCHANGE_DATA_PROVIDER_GTK_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include <gtk/gtk.h> | |
| 10 #include <map> | |
| 11 #include <set> | |
| 12 #include <string> | |
| 13 | |
| 14 #include "app/os_exchange_data.h" | |
| 15 #include "base/pickle.h" | |
| 16 #include "base/string16.h" | |
| 17 #include "gfx/point.h" | |
| 18 #include "googleurl/src/gurl.h" | |
| 19 | |
| 20 // OSExchangeData::Provider implementation for Gtk. OSExchangeDataProviderGtk | |
| 21 // is created with a set of known data types. In addition specific data | |
| 22 // types can be set on OSExchangeDataProviderGtk by way of the various setters. | |
| 23 // The various has methods return true if the format was supplied to the | |
| 24 // constructor, or explicitly set. | |
| 25 class OSExchangeDataProviderGtk : public OSExchangeData::Provider { | |
| 26 public: | |
| 27 OSExchangeDataProviderGtk(int known_formats, | |
| 28 const std::set<GdkAtom>& known_custom_formats_); | |
| 29 OSExchangeDataProviderGtk(); | |
| 30 | |
| 31 virtual ~OSExchangeDataProviderGtk(); | |
| 32 | |
| 33 int known_formats() const { return known_formats_; } | |
| 34 const std::set<GdkAtom>& known_custom_formats() const { | |
| 35 return known_custom_formats_; | |
| 36 } | |
| 37 | |
| 38 // Returns true if all the formats and custom formats identified by |formats| | |
| 39 // and |custom_formats| have been set in this provider. | |
| 40 // | |
| 41 // NOTE: this is NOT the same as whether a format may be provided (as is | |
| 42 // returned by the various HasXXX methods), but rather if the data for the | |
| 43 // formats has been set on this provider by way of the various Setter | |
| 44 // methods. | |
| 45 bool HasDataForAllFormats(int formats, | |
| 46 const std::set<GdkAtom>& custom_formats) const; | |
| 47 | |
| 48 // Returns the set of formats available as a GtkTargetList. It is up to the | |
| 49 // caller to free (gtk_target_list_unref) the returned list. | |
| 50 GtkTargetList* GetTargetList() const; | |
| 51 | |
| 52 // Writes the data to |selection|. |format| is any combination of | |
| 53 // OSExchangeData::Formats. | |
| 54 void WriteFormatToSelection(int format, | |
| 55 GtkSelectionData* selection) const; | |
| 56 | |
| 57 // Provider methods. | |
| 58 virtual void SetString(const std::wstring& data); | |
| 59 virtual void SetURL(const GURL& url, const std::wstring& title); | |
| 60 virtual void SetFilename(const std::wstring& full_path); | |
| 61 virtual void SetPickledData(OSExchangeData::CustomFormat format, | |
| 62 const Pickle& data); | |
| 63 virtual bool GetString(std::wstring* data) const; | |
| 64 virtual bool GetURLAndTitle(GURL* url, std::wstring* title) const; | |
| 65 virtual bool GetFilename(std::wstring* full_path) const; | |
| 66 virtual bool GetPickledData(OSExchangeData::CustomFormat format, | |
| 67 Pickle* data) const; | |
| 68 virtual bool HasString() const; | |
| 69 virtual bool HasURL() const; | |
| 70 virtual bool HasFile() const; | |
| 71 virtual bool HasCustomFormat(OSExchangeData::CustomFormat format) const; | |
| 72 | |
| 73 // Set the image and cursor offset data for this drag. Will | |
| 74 // increment the ref count of pixbuf. | |
| 75 void SetDragImage(GdkPixbuf* pixbuf, const gfx::Point& cursor_offset); | |
| 76 GdkPixbuf* drag_image() const { return drag_image_; } | |
| 77 gfx::Point cursor_offset() const { return cursor_offset_; } | |
| 78 | |
| 79 private: | |
| 80 typedef std::map<OSExchangeData::CustomFormat, Pickle> PickleData; | |
| 81 | |
| 82 // Returns true if |formats_| contains a string format and the string can be | |
| 83 // parsed as a URL. | |
| 84 bool GetPlainTextURL(GURL* url) const; | |
| 85 | |
| 86 // These are the possible formats the OSExchangeData may contain. Don't | |
| 87 // confuse this with the actual formats that have been set, which are | |
| 88 // |formats_| and |custom_formats_|. | |
| 89 const int known_formats_; | |
| 90 const std::set<GdkAtom> known_custom_formats_; | |
| 91 | |
| 92 // Actual formats that have been set. See comment above |known_formats_| | |
| 93 // for details. | |
| 94 int formats_; | |
| 95 | |
| 96 // String contents. | |
| 97 string16 string_; | |
| 98 | |
| 99 // URL contents. | |
| 100 GURL url_; | |
| 101 string16 title_; | |
| 102 | |
| 103 // File name. | |
| 104 std::string filename_; | |
| 105 | |
| 106 // PICKLED_DATA contents. | |
| 107 PickleData pickle_data_; | |
| 108 | |
| 109 // Drag image and offset data. | |
| 110 GdkPixbuf* drag_image_; | |
| 111 gfx::Point cursor_offset_; | |
| 112 | |
| 113 DISALLOW_COPY_AND_ASSIGN(OSExchangeDataProviderGtk); | |
| 114 }; | |
| 115 | |
| 116 #endif // APP_OS_EXCHANGE_DATA_PROVIDER_GTK_H_ | |
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