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comparison: widget/windows/nsDataObjCollection.h
widget/windows/nsDataObjCollection.h
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- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:0df4c137bc7e |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef _NSDATAOBJCOLLECTION_H_ | |
| 7 #define _NSDATAOBJCOLLECTION_H_ | |
| 8 | |
| 9 #include <oleidl.h> | |
| 10 | |
| 11 #include "nsString.h" | |
| 12 #include "nsTArray.h" | |
| 13 #include "nsAutoPtr.h" | |
| 14 #include "nsDataObj.h" | |
| 15 #include "mozilla/Attributes.h" | |
| 16 | |
| 17 class CEnumFormatEtc; | |
| 18 | |
| 19 #define MULTI_MIME "Mozilla/IDataObjectCollectionFormat" | |
| 20 | |
| 21 EXTERN_C const IID IID_IDataObjCollection; | |
| 22 | |
| 23 // An interface to make sure we have the right kind of object for D&D | |
| 24 // this way we can filter out collection objects that aren't ours | |
| 25 class nsIDataObjCollection : public IUnknown { | |
| 26 public: | |
| 27 | |
| 28 }; | |
| 29 | |
| 30 /* | |
| 31 * This ole registered class is used to facilitate drag-drop of objects which | |
| 32 * can be adapted by an object derived from CfDragDrop. The CfDragDrop is | |
| 33 * associated with instances via SetDragDrop(). | |
| 34 */ | |
| 35 | |
| 36 class nsDataObjCollection MOZ_FINAL : public nsIDataObjCollection, public nsDataObj | |
| 37 { | |
| 38 public: | |
| 39 nsDataObjCollection(); | |
| 40 ~nsDataObjCollection(); | |
| 41 | |
| 42 public: // IUnknown methods - see iunknown.h for documentation | |
| 43 STDMETHODIMP_(ULONG) AddRef (); | |
| 44 STDMETHODIMP QueryInterface(REFIID, void**); | |
| 45 STDMETHODIMP_(ULONG) Release (); | |
| 46 | |
| 47 public: // DataGet and DataSet helper methods | |
| 48 virtual HRESULT AddSetFormat(FORMATETC& FE); | |
| 49 virtual HRESULT AddGetFormat(FORMATETC& FE); | |
| 50 | |
| 51 virtual HRESULT GetFile(LPFORMATETC pFE, LPSTGMEDIUM pSTM); | |
| 52 virtual HRESULT GetText(LPFORMATETC pFE, LPSTGMEDIUM pSTM); | |
| 53 virtual HRESULT GetFileDescriptors(LPFORMATETC pFE, LPSTGMEDIUM pSTM); | |
| 54 virtual HRESULT GetFileContents(LPFORMATETC pFE, LPSTGMEDIUM pSTM); | |
| 55 virtual HRESULT GetFirstSupporting(LPFORMATETC pFE, LPSTGMEDIUM pSTM); | |
| 56 | |
| 57 // support for clipboard | |
| 58 void AddDataFlavor(const char * aDataFlavor, LPFORMATETC aFE); | |
| 59 | |
| 60 // from nsPIDataObjCollection | |
| 61 void AddDataObject(IDataObject * aDataObj); | |
| 62 int32_t GetNumDataObjects() { return mDataObjects.Length(); } | |
| 63 nsDataObj* GetDataObjectAt(uint32_t aItem) | |
| 64 { return mDataObjects.SafeElementAt(aItem, nsRefPtr<nsDataObj>()); } | |
| 65 | |
| 66 // Return the registered OLE class ID of this object's CfDataObj. | |
| 67 CLSID GetClassID() const; | |
| 68 | |
| 69 public: | |
| 70 // Store data in pSTM according to the format specified by pFE, if the | |
| 71 // format is supported (supported formats are specified in CfDragDrop:: | |
| 72 // GetFormats) and return NOERROR; otherwise return DATA_E_FORMATETC. It | |
| 73 // is the callers responsibility to free pSTM if NOERROR is returned. | |
| 74 STDMETHODIMP GetData (LPFORMATETC pFE, LPSTGMEDIUM pSTM); | |
| 75 | |
| 76 // Similar to GetData except that the caller allocates the structure | |
| 77 // referenced by pSTM. | |
| 78 STDMETHODIMP GetDataHere (LPFORMATETC pFE, LPSTGMEDIUM pSTM); | |
| 79 | |
| 80 // Returns S_TRUE if this object supports the format specified by pSTM, | |
| 81 // S_FALSE otherwise. | |
| 82 STDMETHODIMP QueryGetData (LPFORMATETC pFE); | |
| 83 | |
| 84 // Set pCanonFE to the canonical format of pFE if one exists and return | |
| 85 // NOERROR, otherwise return DATA_S_SAMEFORMATETC. A canonical format | |
| 86 // implies an identical rendering. | |
| 87 STDMETHODIMP GetCanonicalFormatEtc (LPFORMATETC pFE, LPFORMATETC pCanonFE); | |
| 88 | |
| 89 // Set this objects data according to the format specified by pFE and | |
| 90 // the storage medium specified by pSTM and return NOERROR, if the format | |
| 91 // is supported. If release is TRUE this object must release the storage | |
| 92 // associated with pSTM. | |
| 93 STDMETHODIMP SetData (LPFORMATETC pFE, LPSTGMEDIUM pSTM, BOOL release); | |
| 94 | |
| 95 // Set ppEnum to an IEnumFORMATETC object which will iterate all of the | |
| 96 // data formats that this object supports. direction is either DATADIR_GET | |
| 97 // or DATADIR_SET. | |
| 98 STDMETHODIMP EnumFormatEtc (DWORD direction, LPENUMFORMATETC* ppEnum); | |
| 99 | |
| 100 // Set up an advisory connection to this object based on the format specified | |
| 101 // by pFE, flags, and the pAdvise. Set pConn to the established advise | |
| 102 // connection. | |
| 103 STDMETHODIMP DAdvise (LPFORMATETC pFE, DWORD flags, LPADVISESINK pAdvise, | |
| 104 DWORD* pConn); | |
| 105 | |
| 106 // Turn off advising of a previous call to DAdvise which set pConn. | |
| 107 STDMETHODIMP DUnadvise (DWORD pConn); | |
| 108 | |
| 109 // Set ppEnum to an IEnumSTATDATA object which will iterate over the | |
| 110 // existing objects which have established advisory connections to this | |
| 111 // object. | |
| 112 STDMETHODIMP EnumDAdvise (LPENUMSTATDATA *ppEnum); | |
| 113 | |
| 114 public: | |
| 115 // Set the adapter to dragDrop | |
| 116 //void SetDragDrop(CfDragDrop& dragDrop); | |
| 117 | |
| 118 // Return the adapter | |
| 119 //CfDragDrop& GetDragDrop() const; | |
| 120 | |
| 121 protected: | |
| 122 BOOL FormatsMatch(const FORMATETC& source, const FORMATETC& target) const; | |
| 123 | |
| 124 ULONG m_cRef; // the reference count | |
| 125 | |
| 126 // nsDataObjCollection owns and ref counts CEnumFormatEtc | |
| 127 CEnumFormatEtc * m_enumFE; | |
| 128 | |
| 129 nsTArray<nsRefPtr<nsDataObj> > mDataObjects; | |
| 130 | |
| 131 BOOL mIsAsyncMode; | |
| 132 BOOL mIsInOperation; | |
| 133 }; | |
| 134 | |
| 135 #endif // |
