1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/windows/nsDataObjCollection.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,135 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef _NSDATAOBJCOLLECTION_H_
1.10 +#define _NSDATAOBJCOLLECTION_H_
1.11 +
1.12 +#include <oleidl.h>
1.13 +
1.14 +#include "nsString.h"
1.15 +#include "nsTArray.h"
1.16 +#include "nsAutoPtr.h"
1.17 +#include "nsDataObj.h"
1.18 +#include "mozilla/Attributes.h"
1.19 +
1.20 +class CEnumFormatEtc;
1.21 +
1.22 +#define MULTI_MIME "Mozilla/IDataObjectCollectionFormat"
1.23 +
1.24 +EXTERN_C const IID IID_IDataObjCollection;
1.25 +
1.26 +// An interface to make sure we have the right kind of object for D&D
1.27 +// this way we can filter out collection objects that aren't ours
1.28 +class nsIDataObjCollection : public IUnknown {
1.29 +public:
1.30 +
1.31 +};
1.32 +
1.33 +/*
1.34 + * This ole registered class is used to facilitate drag-drop of objects which
1.35 + * can be adapted by an object derived from CfDragDrop. The CfDragDrop is
1.36 + * associated with instances via SetDragDrop().
1.37 + */
1.38 +
1.39 +class nsDataObjCollection MOZ_FINAL : public nsIDataObjCollection, public nsDataObj
1.40 +{
1.41 + public:
1.42 + nsDataObjCollection();
1.43 + ~nsDataObjCollection();
1.44 +
1.45 + public: // IUnknown methods - see iunknown.h for documentation
1.46 + STDMETHODIMP_(ULONG) AddRef ();
1.47 + STDMETHODIMP QueryInterface(REFIID, void**);
1.48 + STDMETHODIMP_(ULONG) Release ();
1.49 +
1.50 + public: // DataGet and DataSet helper methods
1.51 + virtual HRESULT AddSetFormat(FORMATETC& FE);
1.52 + virtual HRESULT AddGetFormat(FORMATETC& FE);
1.53 +
1.54 + virtual HRESULT GetFile(LPFORMATETC pFE, LPSTGMEDIUM pSTM);
1.55 + virtual HRESULT GetText(LPFORMATETC pFE, LPSTGMEDIUM pSTM);
1.56 + virtual HRESULT GetFileDescriptors(LPFORMATETC pFE, LPSTGMEDIUM pSTM);
1.57 + virtual HRESULT GetFileContents(LPFORMATETC pFE, LPSTGMEDIUM pSTM);
1.58 + virtual HRESULT GetFirstSupporting(LPFORMATETC pFE, LPSTGMEDIUM pSTM);
1.59 +
1.60 + // support for clipboard
1.61 + void AddDataFlavor(const char * aDataFlavor, LPFORMATETC aFE);
1.62 +
1.63 + // from nsPIDataObjCollection
1.64 + void AddDataObject(IDataObject * aDataObj);
1.65 + int32_t GetNumDataObjects() { return mDataObjects.Length(); }
1.66 + nsDataObj* GetDataObjectAt(uint32_t aItem)
1.67 + { return mDataObjects.SafeElementAt(aItem, nsRefPtr<nsDataObj>()); }
1.68 +
1.69 + // Return the registered OLE class ID of this object's CfDataObj.
1.70 + CLSID GetClassID() const;
1.71 +
1.72 + public:
1.73 + // Store data in pSTM according to the format specified by pFE, if the
1.74 + // format is supported (supported formats are specified in CfDragDrop::
1.75 + // GetFormats) and return NOERROR; otherwise return DATA_E_FORMATETC. It
1.76 + // is the callers responsibility to free pSTM if NOERROR is returned.
1.77 + STDMETHODIMP GetData (LPFORMATETC pFE, LPSTGMEDIUM pSTM);
1.78 +
1.79 + // Similar to GetData except that the caller allocates the structure
1.80 + // referenced by pSTM.
1.81 + STDMETHODIMP GetDataHere (LPFORMATETC pFE, LPSTGMEDIUM pSTM);
1.82 +
1.83 + // Returns S_TRUE if this object supports the format specified by pSTM,
1.84 + // S_FALSE otherwise.
1.85 + STDMETHODIMP QueryGetData (LPFORMATETC pFE);
1.86 +
1.87 + // Set pCanonFE to the canonical format of pFE if one exists and return
1.88 + // NOERROR, otherwise return DATA_S_SAMEFORMATETC. A canonical format
1.89 + // implies an identical rendering.
1.90 + STDMETHODIMP GetCanonicalFormatEtc (LPFORMATETC pFE, LPFORMATETC pCanonFE);
1.91 +
1.92 + // Set this objects data according to the format specified by pFE and
1.93 + // the storage medium specified by pSTM and return NOERROR, if the format
1.94 + // is supported. If release is TRUE this object must release the storage
1.95 + // associated with pSTM.
1.96 + STDMETHODIMP SetData (LPFORMATETC pFE, LPSTGMEDIUM pSTM, BOOL release);
1.97 +
1.98 + // Set ppEnum to an IEnumFORMATETC object which will iterate all of the
1.99 + // data formats that this object supports. direction is either DATADIR_GET
1.100 + // or DATADIR_SET.
1.101 + STDMETHODIMP EnumFormatEtc (DWORD direction, LPENUMFORMATETC* ppEnum);
1.102 +
1.103 + // Set up an advisory connection to this object based on the format specified
1.104 + // by pFE, flags, and the pAdvise. Set pConn to the established advise
1.105 + // connection.
1.106 + STDMETHODIMP DAdvise (LPFORMATETC pFE, DWORD flags, LPADVISESINK pAdvise,
1.107 + DWORD* pConn);
1.108 +
1.109 + // Turn off advising of a previous call to DAdvise which set pConn.
1.110 + STDMETHODIMP DUnadvise (DWORD pConn);
1.111 +
1.112 + // Set ppEnum to an IEnumSTATDATA object which will iterate over the
1.113 + // existing objects which have established advisory connections to this
1.114 + // object.
1.115 + STDMETHODIMP EnumDAdvise (LPENUMSTATDATA *ppEnum);
1.116 +
1.117 + public:
1.118 + // Set the adapter to dragDrop
1.119 + //void SetDragDrop(CfDragDrop& dragDrop);
1.120 +
1.121 + // Return the adapter
1.122 + //CfDragDrop& GetDragDrop() const;
1.123 +
1.124 + protected:
1.125 + BOOL FormatsMatch(const FORMATETC& source, const FORMATETC& target) const;
1.126 +
1.127 + ULONG m_cRef; // the reference count
1.128 +
1.129 + // nsDataObjCollection owns and ref counts CEnumFormatEtc
1.130 + CEnumFormatEtc * m_enumFE;
1.131 +
1.132 + nsTArray<nsRefPtr<nsDataObj> > mDataObjects;
1.133 +
1.134 + BOOL mIsAsyncMode;
1.135 + BOOL mIsInOperation;
1.136 +};
1.137 +
1.138 +#endif //
