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Diffstat (limited to 'sc/inc/externalrefmgr.hxx')
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diff --git a/sc/inc/externalrefmgr.hxx b/sc/inc/externalrefmgr.hxx new file mode 100644 index 000000000..368ceb438 --- /dev/null +++ b/sc/inc/externalrefmgr.hxx @@ -0,0 +1,856 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef INCLUDED_SC_INC_EXTERNALREFMGR_HXX +#define INCLUDED_SC_INC_EXTERNALREFMGR_HXX + +#include "address.hxx" +#include "document.hxx" +#include <sfx2/objsh.hxx> +#include <sfx2/lnkbase.hxx> +#include <tools/time.hxx> +#include <vcl/timer.hxx> +#include <svl/zforlist.hxx> +#include <svl/lstner.hxx> +#include "types.hxx" +#include "rangelst.hxx" +#include <osl/mutex.hxx> +#include <formula/types.hxx> +#include <tools/solar.h> + +#include <memory> +#include <unordered_map> +#include <unordered_set> +#include <vector> +#include <set> +#include <o3tl/sorted_vector.hxx> +#include <formula/ExternalReferenceHelper.hxx> + +class ScTokenArray; +namespace weld { class Window; } + +class ScFormulaCell; + +namespace sc { + +class ColumnSpanSet; + +} + +class ScExternalRefLink final : public ::sfx2::SvBaseLink +{ +public: + ScExternalRefLink(ScDocument* pDoc, sal_uInt16 nFileId); + virtual ~ScExternalRefLink() override; + + virtual void Closed() override; + virtual ::sfx2::SvBaseLink::UpdateResult DataChanged( + const OUString& rMimeType, const css::uno::Any & rValue) override; + virtual void Edit(weld::Window* pParent, const Link<SvBaseLink&,void>& rEndEditHdl) override; + + void SetDoReferesh(bool b); + +private: + ScExternalRefLink() = delete; + ScExternalRefLink(const ScExternalRefLink&) = delete; + + sal_uInt16 mnFileId; + ScDocument* mpDoc; + bool mbDoRefresh; +}; + +/** + * Cache table for external reference data. + */ +class ScExternalRefCache +{ +public: + typedef ::formula::FormulaTokenRef TokenRef; + typedef std::shared_ptr<ScTokenArray> TokenArrayRef; + + struct TableName + { + OUString maUpperName; + OUString maRealName; + + explicit TableName(const OUString& rUppper, const OUString& rReal); + }; + + struct CellFormat + { + bool mbIsSet; + SvNumFormatType mnType; + sal_uLong mnIndex; + + explicit CellFormat(); + }; + +private: + /** individual cell within cached external ref table. */ + struct Cell + { + TokenRef mxToken; + sal_uLong mnFmtIndex; + }; + typedef std::unordered_map<SCCOL, Cell> RowDataType; + typedef std::unordered_map<SCROW, RowDataType> RowsDataType; + +public: + /** + * Represents a single cached table in an external document. It only + * stores non-empty cells; empty cells should never be stored in the data + * cache. Instead, cached ranges should be used to determine whether or + * not a cell is empty or needs fetching from the source document. If a + * cell's value is not stored but its address is within the cached ranges, + * that cell is already queried in the source document and we know it's + * empty. + */ + class Table + { + public: + + Table(); + ~Table(); + + void clear(); + + /** + * Add cell value to the cache. + * + * @param bSetCacheRange if true, mark this cell 'cached'. This is + * false _only when_ adding a range of cell + * values, for performance reasons. + */ + SC_DLLPUBLIC void setCell(SCCOL nCol, SCROW nRow, TokenRef const & pToken, sal_uLong nFmtIndex = 0, bool bSetCacheRange = true); + SC_DLLPUBLIC TokenRef getCell(SCCOL nCol, SCROW nRow, sal_uInt32* pnFmtIndex = nullptr) const; + bool hasRow( SCROW nRow ) const; + /** Set/clear referenced status flag only if current status is not + REFERENCED_PERMANENT. */ + void setReferenced( bool bReferenced ); + bool isReferenced() const; + /// Obtain a sorted vector of rows. + void getAllRows(::std::vector<SCROW>& rRows, SCROW nLow = 0, SCROW nHigh = MAXROW) const; + /// Returns the half-open range of used rows in this table. Returns [0,0) if table is empty. + SC_DLLPUBLIC ::std::pair< SCROW, SCROW > getRowRange() const; + /// Obtain a sorted vector of columns. + void getAllCols(SCROW nRow, ::std::vector<SCCOL>& rCols, SCCOL nLow = 0, SCCOL nHigh = MAXCOL) const; + /// Returns the half-open range of used columns in the specified row. Returns [0,0) if row is empty. + SC_DLLPUBLIC ::std::pair< SCCOL, SCCOL > getColRange( SCROW nRow ) const; + void getAllNumberFormats(::std::vector<sal_uInt32>& rNumFmts) const; + bool isRangeCached(SCCOL nCol1, SCROW nRow1, SCCOL nCol2, SCROW nRow2) const; + + void setCachedCell(SCCOL nCol, SCROW nRow); + void setCachedCellRange(SCCOL nCol1, SCROW nRow1, SCCOL nCol2, SCROW nRow2); + + /** + * Call this to mark the entire table "cached". This will prevent all + * future attempts to access the source document even when non-cached + * cells are queried. In such case, non-cached cells are treated as + * empty cells. Useful when loading a document with own external data + * cache. + */ + SC_DLLPUBLIC void setWholeTableCached(); + private: + bool isInCachedRanges(SCCOL nCol, SCROW nRow) const; + TokenRef getEmptyOrNullToken(SCCOL nCol, SCROW nRow) const; + + private: + /** Data cache */ + RowsDataType maRows; + /** Collection of individual cached ranges. The table ranges are + * not used & always zero. */ + ScRangeList maCachedRanges; + bool mbReferenced; + }; + + typedef std::shared_ptr<Table> TableTypeRef; + typedef std::unordered_map< OUString, size_t> + TableNameIndexMap; + + ScExternalRefCache(); + ~ScExternalRefCache(); + + const OUString* getRealTableName(sal_uInt16 nFileId, const OUString& rTabName) const; + const OUString* getRealRangeName(sal_uInt16 nFileId, const OUString& rRangeName) const; + + /** + * Get a cached cell data at specified cell location. + * + * @param nFileId file ID of an external document + * @param rTabName sheet name + * @param nCol + * @param nRow + * + * @return pointer to the token instance in the cache. + */ + ScExternalRefCache::TokenRef getCellData( + sal_uInt16 nFileId, const OUString& rTabName, SCCOL nCol, SCROW nRow, sal_uInt32* pnFmtIndex); + + /** + * Get a cached cell range data. + * + * @return a new token array instance. Note that <i>the caller must + * manage the life cycle of the returned instance</i>, which is + * guaranteed if the TokenArrayRef is properly used... + */ + ScExternalRefCache::TokenArrayRef getCellRangeData( + sal_uInt16 nFileId, const OUString& rTabName, const ScRange& rRange); + + ScExternalRefCache::TokenArrayRef getRangeNameTokens(sal_uInt16 nFileId, const OUString& rName); + void setRangeNameTokens(sal_uInt16 nFileId, const OUString& rName, TokenArrayRef pArray); + bool isValidRangeName(sal_uInt16 nFileId, const OUString& rName) const; + void setRangeName(sal_uInt16 nFileId, const OUString& rName); + + void setCellData(sal_uInt16 nFileId, const OUString& rTabName, + SCCOL nCol, SCROW nRow, TokenRef const & pToken, sal_uLong nFmtIndex); + + struct SingleRangeData + { + /** This name must be in upper-case. */ + OUString maTableName; + ScMatrixRef mpRangeData; + }; + void setCellRangeData(sal_uInt16 nFileId, const ScRange& rRange, const ::std::vector<SingleRangeData>& rData, + const TokenArrayRef& pArray); + + bool isDocInitialized(sal_uInt16 nFileId); + void initializeDoc(sal_uInt16 nFileId, const ::std::vector<OUString>& rTabNames, const OUString& rBaseName); + OUString getTableName(sal_uInt16 nFileId, size_t nCacheId) const; + void getAllTableNames(sal_uInt16 nFileId, ::std::vector<OUString>& rTabNames) const; + SCTAB getTabSpan( sal_uInt16 nFileId, const OUString& rStartTabName, const OUString& rEndTabName ) const; + void getAllNumberFormats(::std::vector<sal_uInt32>& rNumFmts) const; + + /** + * Set all tables of a document as referenced, used only during + * store-to-file. + * @returns <TRUE/> if ALL tables of ALL documents are marked. + */ + bool setCacheDocReferenced( sal_uInt16 nFileId ); + + /** + * Set a table as referenced, used only during store-to-file. + * @returns <TRUE/> if ALL tables of ALL documents are marked. + */ + bool setCacheTableReferenced( sal_uInt16 nFileId, const OUString& rTabName, size_t nSheets ); + void setAllCacheTableReferencedStati( bool bReferenced ); + bool areAllCacheTablesReferenced() const { return maReferenced.mbAllReferenced;} + + /** + * Collect all cached non-empty cell positions, inferred directly from the + * cached data, not the cached range metadata stored separately in the + * Table. + */ + void getAllCachedDataSpans( const ScDocument& rSrcDoc, sal_uInt16 nFileId, sc::ColumnSpanSet& rSet ) const; + + bool getSrcDocTable( const ScDocument& rSrcDoc, const OUString& rTabName, SCTAB& rTab, sal_uInt16 nFileId ) const; + +private: + struct ReferencedStatus + { + struct DocReferenced + { + ::std::vector<bool> maTables; + bool mbAllTablesReferenced; + // Initially, documents have no tables but all referenced. + DocReferenced() : mbAllTablesReferenced(true) {} + }; + typedef ::std::vector<DocReferenced> DocReferencedVec; + + DocReferencedVec maDocs; + bool mbAllReferenced; + + ReferencedStatus(); + void reset( size_t nDocs ); + void checkAllDocs(); + + } maReferenced; + void addCacheTableToReferenced( sal_uInt16 nFileId, size_t nIndex ); + void addCacheDocToReferenced( sal_uInt16 nFileId ); +public: + + ScExternalRefCache::TableTypeRef getCacheTable(sal_uInt16 nFileId, size_t nTabIndex) const; + ScExternalRefCache::TableTypeRef getCacheTable(sal_uInt16 nFileId, const OUString& rTabName, bool bCreateNew, + size_t* pnIndex, const OUString* pExtUrl); + + /** + * Clear all caches including the cache tables. + */ + void clearCache(sal_uInt16 nFileId); + + /** + * Clear all caches but keep the tables. All cache tables will be empty + * after the call, but the tables will not be removed. + */ + void clearCacheTables(sal_uInt16 nFileId); + + // Get the fake doc used to pass to methods that need an ScDocument in order to do row/col validation + const ScDocument* getFakeDoc() const { return mxFakeDoc.get(); } + +private: + struct RangeHash + { + size_t operator()(const ScRange& rRange) const + { + const ScAddress& s = rRange.aStart; + const ScAddress& e = rRange.aEnd; + size_t hash = 17; + hash = hash * 37 + s.Tab(); + hash = hash * 37 + s.Col(); + hash = hash * 37 + s.Row(); + hash = hash * 37 + e.Tab(); + hash = hash * 37 + e.Col(); + hash = hash * 37 + e.Row(); + return hash; + } + }; + + typedef std::unordered_map<OUString, TokenArrayRef> RangeNameMap; + typedef std::unordered_map<ScRange, TokenArrayRef, RangeHash> RangeArrayMap; + typedef std::unordered_map<OUString, OUString> NamePairMap; + + /** Represents data cached for a single external document. */ + struct DocItem + { + /** The raw cache tables. */ + ::std::vector<TableTypeRef> maTables; + /** Table name list in correct order, in both upper- and real-case. */ + ::std::vector<TableName> maTableNames; + /** Table name to index map. The names must be stored upper-case. */ + TableNameIndexMap maTableNameIndex; + /** Range name cache. */ + RangeNameMap maRangeNames; + /** Token array cache for cell ranges. */ + RangeArrayMap maRangeArrays; + /** Upper- to real-case mapping for range names. */ + NamePairMap maRealRangeNameMap; + + /** Either the base name that was stored as sheet name for CSV files if + sheet name is Sheet1, or Sheet1 name if sheet name is base name. + */ + OUString maSingleTableNameAlias; + + bool mbInitFromSource; + + DocItem() : mbInitFromSource(false) {} + + TableNameIndexMap::const_iterator findTableNameIndex( const OUString& rTabName ) const; + bool getTableDataIndex( const OUString& rTabName, size_t& rIndex ) const; + bool getSingleTableNameAlternative( OUString& rTabName ) const; + }; + typedef std::unordered_map<sal_uInt16, DocItem> DocDataType; + DocItem* getDocItem(sal_uInt16 nFileId) const; + +private: + mutable osl::Mutex maMtxDocs; + mutable DocDataType maDocs; + ScDocumentUniquePtr mxFakeDoc; // just to have something to pass to the methods that need to validate columns/rows +}; + +class SC_DLLPUBLIC ScExternalRefManager final : public formula::ExternalReferenceHelper, public SfxListener +{ +public: + + typedef std::set<ScFormulaCell*> RefCellSet; + typedef std::unordered_map<sal_uInt16, RefCellSet> RefCellMap; + + enum LinkUpdateType { LINK_MODIFIED, LINK_BROKEN }; + + /** + * Base class for objects that need to listen to link updates. When a + * link to a certain external file is updated, the notify() method gets + * called. + */ + class SAL_DLLPRIVATE LinkListener + { + public: + LinkListener(); + virtual ~LinkListener() COVERITY_NOEXCEPT_FALSE = 0; + virtual void notify(sal_uInt16 nFileId, LinkUpdateType eType) = 0; + }; + + /** + * Use this guard when performing something from the API that might query + * values from external references. Interpreting formula strings is one + * such example. + */ + class SC_DLLPUBLIC ApiGuard + { + public: + ApiGuard(const ScDocument* pDoc); + ~ApiGuard(); + private: + ScExternalRefManager* mpMgr; + bool mbOldInteractionEnabled; + }; + +private: + /** Shell instance for a source document. */ + struct SrcShell + { + SfxObjectShellRef maShell; + tools::Time maLastAccess; + + SrcShell() : maLastAccess( tools::Time::SYSTEM ) {} + }; + + typedef std::unordered_map<sal_uInt16, SrcShell> DocShellMap; + typedef std::unordered_map<sal_uInt16, bool> LinkedDocMap; + + typedef std::unordered_map<sal_uInt16, SvNumberFormatterMergeMap> NumFmtMap; + + typedef o3tl::sorted_vector<LinkListener*> LinkListeners; + typedef std::unordered_map<sal_uInt16, LinkListeners> LinkListenerMap; + +public: + /** Source document meta-data container. */ + struct SAL_DLLPRIVATE SrcFileData + { + OUString maFileName; /// original file name as loaded from the file. + OUString maRealFileName; /// file name created from the relative name. + OUString maRelativeName; + OUString maFilterName; + OUString maFilterOptions; + + void maybeCreateRealFileName(const OUString& rOwnDocName); + }; + +public: + explicit ScExternalRefManager(ScDocument* pDoc); + virtual ~ScExternalRefManager() override; + + virtual OUString getCacheTableName(sal_uInt16 nFileId, size_t nTabIndex) const override; + + /** + * Get a cache table instance for specified table and table index. Unlike + * the other method that takes a table name, this method does not create a + * new table when a table is not available for specified index. + * + * @param nFileId file ID + * @param nTabIndex cache table index + * + * @return shared_ptr to the cache table instance + */ + ScExternalRefCache::TableTypeRef getCacheTable(sal_uInt16 nFileId, size_t nTabIndex) const; + + /** + * Get a cache table instance for specified file and table name. If the + * table instance is not already present, it'll instantiate a new one and + * append it to the end of the table array. <I>It's important to be + * aware of this fact especially for multi-table ranges for which + * table orders are critical.</I> + * + * Excel filter calls this method to populate the cache table from the + * XCT/CRN records. ODF import calls it for cached tables for external + * references. + * + * @param nFileId file ID + * @param rTabName table name + * @param bCreateNew if true, create a new table instance if it's not + * already present. If false, it returns NULL if the + * specified table's cache doesn't exist. + * @param pnIndex if non-NULL pointer is passed, it stores the internal + * index of a cache table instance. + * @param pExtUrl if non-NULL and bCreateNew==true, the base name will be + * propagated as an alias for the first table (and removed + * later if further tables are created). + * + * @return shared_ptr to the cache table instance + */ + ScExternalRefCache::TableTypeRef getCacheTable(sal_uInt16 nFileId, const OUString& rTabName, bool bCreateNew, + size_t* pnIndex = nullptr, const OUString* pExtUrl = nullptr); + + /** Returns a vector containing all (real) table names and cache tables of + the specified file. + + The index in the returned vector corresponds to the table index used to + access the cache table, e.g. in getCacheTable(). + */ + void getAllCachedTableNames(sal_uInt16 nFileId, ::std::vector<OUString>& rTabNames) const; + + /** + * Get the span (distance+sign(distance)) of two sheets of a specified + * file. + * + * @param nFileId file ID + * @param rStartTabName name of first sheet (sheet1) + * @param rEndTabName name of second sheet (sheet2) + * + * @return span + * 1 if sheet2 == sheet1 + * > 1 if sheet2 > sheet1 + * < -1 if sheet2 < sheet1 + * -1 if nFileId or rStartTabName not found + * 0 if rEndTabName not found + */ + SCTAB getCachedTabSpan( + sal_uInt16 nFileId, const OUString& rStartTabName, const OUString& rEndTabName) const; + + /** + * Get all unique number format indices that are used in the cache tables. + * The retrieved indices are sorted in ascending order. + * + * @param rNumFmts (reference) all unique number format indices. + */ + void getAllCachedNumberFormats(::std::vector<sal_uInt32>& rNumFmts) const; + + sal_uInt16 getExternalFileCount() const; + + /** + * Mark all tables as referenced that are used by any LinkListener, used + * only during store-to-file. + */ + void markUsedByLinkListeners(); + + void markUsedExternalRefCells(); + + /** + * Set a table as referenced, used only during store-to-file. + * @returns <TRUE/> if ALL tables of ALL external documents are marked. + */ + bool setCacheTableReferenced( sal_uInt16 nFileId, const OUString& rTabName, size_t nSheets ); + void setAllCacheTableReferencedStati( bool bReferenced ); + + /** + * @returns <TRUE/> if setAllCacheTableReferencedStati(false) was called, + * <FALSE/> if setAllCacheTableReferencedStati(true) was called. + */ + bool isInReferenceMarking() const { return mbInReferenceMarking; } + + void storeRangeNameTokens(sal_uInt16 nFileId, const OUString& rName, const ScTokenArray& rArray); + + ScExternalRefCache::TokenRef getSingleRefToken( + sal_uInt16 nFileId, const OUString& rTabName, const ScAddress& rCell, + const ScAddress* pCurPos, SCTAB* pTab, ScExternalRefCache::CellFormat* pFmt = nullptr); + + /** + * Get an array of tokens that consist of the specified external cell + * range. + * + * @param nFileId file ID for an external document + * @param rTabName referenced sheet name + * @param rRange referenced cell range + * @param pCurPos current cursor position to keep track of cells that + * reference an external data. + * + * @return shared_ptr to a token array instance. <i>The caller must not + * delete the instance returned by this method.</i> + */ + ScExternalRefCache::TokenArrayRef getDoubleRefTokens( + sal_uInt16 nFileId, const OUString& rTabName, const ScRange& rRange, const ScAddress* pCurPos); + + /** + * Get an array of tokens corresponding with a specified name in a + * specified file. + * + * @param pCurPos current cell address where this name token is used. + * This is purely to keep track of all cells containing + * external names for refreshing purposes. If this is + * NULL, then the cell will not be added to the list. + * + * @return shared_ptr to array of tokens composing the name + */ + ScExternalRefCache::TokenArrayRef getRangeNameTokens( + sal_uInt16 nFileId, const OUString& rName, const ScAddress* pCurPos = nullptr); + + bool isValidRangeName(sal_uInt16 nFileId, const OUString& rName); + + OUString getOwnDocumentName() const; + bool isOwnDocument(const OUString& rFile) const; + + /** + * Takes a flat file name, and convert it to an absolute URL path. An + * absolute URL path begins with 'file:///. + * + * @param rFile file name to convert + */ + void convertToAbsName(OUString& rFile) const; + sal_uInt16 getExternalFileId(const OUString& rFile); + + /** + * It returns a pointer to the name of the URI associated with a given + * external file ID. In case the original document has moved, it returns + * a URI adjusted for the relocation. + * + * @param nFileId file ID for an external document + * @param bForceOriginal If true, it always returns the original document + * URI even if the referring document has relocated. + * If false, it returns a URI adjusted for + * relocated document. + * + * @return const OUString* external document URI. + */ + const OUString* getExternalFileName(sal_uInt16 nFileId, bool bForceOriginal = false); + + /** + * Get all cached external file names as an array. Array indices of the + * returned name array correspond with external file ID's. + */ + std::vector<OUString> getAllCachedExternalFileNames() const; + + bool hasExternalFile(sal_uInt16 nFileId) const; + bool hasExternalFile(const OUString& rFile) const; + const SrcFileData* getExternalFileData(sal_uInt16 nFileId) const; + + const OUString* getRealTableName(sal_uInt16 nFileId, const OUString& rTabName) const; + const OUString* getRealRangeName(sal_uInt16 nFileId, const OUString& rRangeName) const; + void clearCache(sal_uInt16 nFileId); + bool refreshSrcDocument(sal_uInt16 nFileId); + void breakLink(sal_uInt16 nFileId); + void switchSrcFile(sal_uInt16 nFileId, const OUString& rNewFile, const OUString& rNewFilter); + + /** + * Set a relative file path for the specified file ID. Note that the + * caller must ensure that the passed URL is a valid relative URL. + * + * @param nFileId file ID for an external document + * @param rRelUrl relative URL + */ + void setRelativeFileName(sal_uInt16 nFileId, const OUString& rRelUrl); + + /** + * Set the filter name and options if any for a given source document. + * These values get reset when the source document ever gets reloaded. + * + * @param nFileId + * @param rFilterName + * @param rOptions + */ + void setFilterData(sal_uInt16 nFileId, const OUString& rFilterName, const OUString& rOptions); + + void clear(); + + bool hasExternalData() const; + + /** + * Re-generates relative names for all stored source files. This is + * necessary when exporting to an ods document, to ensure that all source + * files have their respective relative names for xlink:href export. + * + * @param rBaseFileUrl Absolute URL of the content.xml fragment of the + * document being exported. + */ + void resetSrcFileData(const OUString& rBaseFileUrl); + + /** + * Replace the original URL with the real URL that was generated from the relative URL. + */ + void updateAbsAfterLoad(); + + /** + * Stop tracking a specific formula cell. + * + * @param pCell pointer to cell that formerly contained external + * reference. + */ + void removeRefCell(ScFormulaCell* pCell); + + /** + * Register a new link listener to a specified external document. Note + * that the caller is responsible for managing the life cycle of the + * listener object. + */ + void addLinkListener(sal_uInt16 nFileId, LinkListener* pListener); + + /** + * Remove an existing link listener. Note that removing a listener + * pointer here does not delete the listener object instance. + */ + void removeLinkListener(sal_uInt16 nFileId, LinkListener* pListener); + + void removeLinkListener(LinkListener* pListener); + + /** + * Notify all listeners that are listening to a specified external + * document. + * + * @param nFileId file ID for an external document. + */ + void notifyAllLinkListeners(sal_uInt16 nFileId, LinkUpdateType eType); + + /** + * Check if the file specified by the path is a legitimate file that + * exists & can be loaded. + */ + bool isFileLoadable(const OUString& rFile) const; + + virtual void Notify( SfxBroadcaster& rBC, const SfxHint& rHint ) override; + + /** + * If we still contain unsaved files we should warn the user before saving + * + * @return true if the document still contains references to an unsaved file + */ + bool containsUnsavedReferences() const { return !maUnsavedDocShells.empty(); } + + void insertRefCell(sal_uInt16 nFileId, const ScAddress& rCell); + /** + * Add a cell to reference the same files as the template cell. + */ + void insertRefCellFromTemplate( ScFormulaCell* pTemplateCell, ScFormulaCell* pCell ); + + bool hasCellExternalReference(const ScAddress& rCell); + + void enableDocTimer( bool bEnable ); + + /** Add all known external files to the LinkManager. */ + void addFilesToLinkManager(); + +private: + ScExternalRefManager(const ScExternalRefManager&) = delete; + + void refreshAllRefCells(sal_uInt16 nFileId); + + void fillCellFormat(sal_uLong nFmtIndex, ScExternalRefCache::CellFormat* pFmt) const; + + bool getSrcDocTable( const ScDocument& rSrcDoc, const OUString& rTabName, SCTAB& rTab, sal_uInt16 nFileId ) const; + + ScExternalRefCache::TokenRef getSingleRefTokenFromSrcDoc( + sal_uInt16 nFileId, ScDocument* pSrcDoc, const ScAddress& rPos, + ScExternalRefCache::CellFormat* pFmt); + + /** + * Retrieve a range token array from a source document instance. + * + * @param pSrcDoc pointer to the source document instance. + * @param rTabName name of the first table. + * @param rRange range specified. Upon successful retrieval, this range + * gets modified to contain the correct table IDs, and in + * case the range is larger than the data area of the source + * document, it gets reduced to the data area. + * @param rCacheData an array of structs, with each struct containing the + * table name and the data in the specified range. + * + * @return range token array + */ + ScExternalRefCache::TokenArrayRef getDoubleRefTokensFromSrcDoc( + const ScDocument* pSrcDoc, const OUString& rTabName, ScRange& rRange, + ::std::vector<ScExternalRefCache::SingleRangeData>& rCacheData); + + /** + * Retrieve range name token array from a source document instance. + * + * @param nFileId file ID of the source document. + * @param pSrcDoc pointer to the source document instance + * @param rName range name to retrieve. Note that the range name lookup + * is case <i>in</i>-sensitive, and upon successful retrieval + * of the range name array, this name gets updated to the + * actual range name with the correct casing. + * + * @return range name token array + */ + static ScExternalRefCache::TokenArrayRef getRangeNameTokensFromSrcDoc( + sal_uInt16 nFileId, const ScDocument* pSrcDoc, OUString& rName); + + ScDocument* getInMemorySrcDocument(sal_uInt16 nFileId); + ScDocument* getSrcDocument(sal_uInt16 nFileId); + SfxObjectShellRef loadSrcDocument(sal_uInt16 nFileId, OUString& rFilter); + + /** + * Caller must ensure that the passed shell is not already stored. + */ + ScDocument& cacheNewDocShell( sal_uInt16 nFileId, SrcShell& rSrcShell ); + + void maybeLinkExternalFile( sal_uInt16 nFileId, bool bDeferFilterDetection = false ); + + /** + * Try to create a "real" file name from the relative path. The original + * file name may not point to the real document when the referencing and + * referenced documents have been moved. + * + * For the real file name to be created, the relative name should not be + * empty before calling this method, or the real file name will not be + * created. + * + * @param nFileId file ID for an external document + */ + void maybeCreateRealFileName(sal_uInt16 nFileId); + + /** + * Purge those source document instances that have not been accessed for + * the specified duration. + * + * @param nTimeOut time out value in 100th of a second + */ + void purgeStaleSrcDocument(sal_Int32 nTimeOut); + + sal_uInt32 getMappedNumberFormat(sal_uInt16 nFileId, sal_uInt32 nNumFmt, const ScDocument* pSrcDoc); + + /** + * If in maUnsavedDocShells move it to maDocShells and create a correct + * external reference entry + * + * @param Pointer to the newly saved DocumentShell + */ + void transformUnsavedRefToSavedRef( SfxObjectShell* pShell ); + +private: + ScDocument* mpDoc; + + /** cache of referenced ranges and names from source documents. */ + ScExternalRefCache maRefCache; + + /** + * Source document cache. This stores the original source document shell + * instances. They get purged after a certain period of time. + */ + DocShellMap maDocShells; + + /** + * DocShells to unsaved but referenced documents. If not empty ask before saving! + * Move to maDocShells if document referenced here is saved + */ + DocShellMap maUnsavedDocShells; + + /** list of source documents that are managed by the link manager. */ + LinkedDocMap maLinkedDocs; + + /** + * List of referencing cells that may contain external names. There is + * one list per source document. + */ + RefCellMap maRefCells; + + LinkListenerMap maLinkListeners; + + NumFmtMap maNumFormatMap; + + /** + * List of external source document meta-data, used to keep track of + * external document identifiers. + */ + std::vector<SrcFileData> maSrcFiles; + + /** Status whether in reference marking state. See isInReferenceMarking(). */ + bool mbInReferenceMarking:1; + + /** + * Controls whether or not to allow user interaction. We don't want any + * user interaction when calling from the API. + */ + bool mbUserInteractionEnabled:1; + + bool mbDocTimerEnabled:1; + + AutoTimer maSrcDocTimer; + DECL_LINK(TimeOutHdl, Timer*, void); +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |