/* -*- 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_UNOTOOLS_MEDIADESCRIPTOR_HXX #define INCLUDED_UNOTOOLS_MEDIADESCRIPTOR_HXX #include #include #include #include #include #include namespace com { namespace sun { namespace star { namespace io { class XInputStream; } } } } namespace comphelper { class IDocPasswordVerifier; } namespace utl { /** @short can be used to work with a css::document::MediaDescriptor struct. @descr It wraps a unordered_map around the Sequence< css::beans::PropertyValue >, which represent the MediaDescriptor item. Further this helper defines often used functions (as e.g. open of the required streams, consistent checks etcpp.) and it defines all useable property names. @attention This class isn't threadsafe and must be guarded from outside! */ class UNOTOOLS_DLLPUBLIC MediaDescriptor : public comphelper::SequenceAsHashMap { public: /** @short these methods can be used to get the different property names as static const OUString values. @descr Because definition and declaration of static const class members does not work as expected under windows (under unix it works as well) these way must be used :-( */ static const OUString& PROP_ABORTED(); static const OUString& PROP_ASTEMPLATE(); static const OUString& PROP_COMPONENTDATA(); static const OUString& PROP_DOCUMENTSERVICE(); static const OUString& PROP_ENCRYPTIONDATA(); static const OUString& PROP_FILENAME(); static const OUString& PROP_FILTERNAME(); static const OUString& PROP_FILTERPROVIDER(); static const OUString& PROP_FILTEROPTIONS(); static const OUString& PROP_FRAME(); static const OUString& PROP_FRAMENAME(); static const OUString& PROP_HIDDEN(); static const OUString& PROP_INPUTSTREAM(); static const OUString& PROP_INTERACTIONHANDLER(); static const OUString& PROP_AUTHENTICATIONHANDLER(); static const OUString& PROP_JUMPMARK(); static const OUString& PROP_MACROEXECUTIONMODE(); static const OUString& PROP_MEDIATYPE(); static const OUString& PROP_MINIMIZED(); static const OUString& PROP_NOAUTOSAVE(); static const OUString& PROP_OPENNEWVIEW(); static const OUString& PROP_OUTPUTSTREAM(); static const OUString& PROP_PASSWORD(); static const OUString& PROP_POSTDATA(); static const OUString& PROP_PREVIEW(); static const OUString& PROP_READONLY(); static const OUString& PROP_REFERRER(); static const OUString& PROP_SALVAGEDFILE(); static const OUString& PROP_STATUSINDICATOR(); static const OUString& PROP_STREAM(); static const OUString& PROP_STREAMFOROUTPUT(); static const OUString& PROP_TEMPLATENAME(); static const OUString& PROP_TITLE(); static const OUString& PROP_TYPENAME(); static const OUString& PROP_UCBCONTENT(); static const OUString& PROP_UPDATEDOCMODE(); static const OUString& PROP_URL(); static const OUString& PROP_VERSION(); static const OUString& PROP_DOCUMENTTITLE(); static const OUString& PROP_MODEL(); static const OUString& PROP_VIEWONLY(); static const OUString& PROP_DOCUMENTBASEURL(); // interface public: /** @short these ctors do nothing - excepting that they forward the given parameters to the base class ctors. @descr The ctors must be overwritten to resolve conflicts with the default ctors of the compiler :-(. */ MediaDescriptor(); MediaDescriptor(const css::uno::Sequence< css::beans::PropertyValue >& lSource); /** @short it checks if the descriptor already has a valid InputStream item and creates a new one, if not. @descr This method uses the current items of this MediaDescriptor, to open the stream (as e.g. URL, ReadOnly, PostData etcpp.). It creates a seekable stream and put it into the descriptor. A might existing InteractionHandler will be used automatically, to solve problems! In case of local file the system file locking is used. @return TRUE, if the stream was already part of the descriptor or could be created as new item. FALSE otherwise. */ bool addInputStream(); /** @short it checks if the descriptor already has a valid InputStream item and creates a new one, if not. @descr This method uses the current items of this MediaDescriptor, to open the stream (as e.g. URL, ReadOnly, PostData etcpp.). It creates a seekable stream and put it into the descriptor. A might existing InteractionHandler will be used automatically, to solve problems! In case of local file the system file locking is used based on configuration settings. @return TRUE, if the stream was already part of the descriptor or could be created as new item. FALSE otherwise. */ bool addInputStreamOwnLock(); /** @short it checks if the descriptor describes a readonly stream. @descr The descriptor itself isn't changed doing so. It's only checked if the stream seems to be based of a real readonly file. @Attention We don't check the property "ReadOnly" here. Because this property can be set from outside and overwrites the readonly state of the stream. If e.g. the stream could be opened read/write ... but "ReadOnly" property is set to TRUE, this means: show a readonly UI on top of this read/write stream. @return TRUE, if the stream must be interpreted as readonly ... FALSE otherwise. */ bool isStreamReadOnly() const; /** Returns a value from the sequence contained in the property 'ComponentData' of this media descriptor. @descr The property 'ComponentData' should be empty, or should contain a value of type sequence or sequence. @return The value with the specified name, if existing in the sequence of the 'ComponentData' property, otherwise an empty Any. */ css::uno::Any getComponentDataEntry( const OUString& rName ) const; /** Inserts a value into the sequence contained in the property 'ComponentData' of the media descriptor. @descr The property 'ComponentData' should be empty, or should contain a value of type sequence or sequence. The passed value will be inserted into the sequence, or, if already existing, will be overwritten. @param rName The name of the value to be inserted into the sequence of the 'ComponentData' property. @param rValue The value to be inserted into the sequence of the 'ComponentData' property. */ void setComponentDataEntry( const OUString& rName, const css::uno::Any& rValue ); /** Removes a value from the sequence contained in the property 'ComponentData' of the media descriptor. @descr The property 'ComponentData' should be empty, or should contain a value of type sequence or sequence. The value with the passed name will be removed from the sequence, if existing. @param rName The name of the value to be removed from the sequence of the 'ComponentData' property. */ void clearComponentDataEntry( const OUString& rName ); /** This helper function tries to find a password for the document described by this media descriptor. First, the list of default passwords will be tried if provided. This is needed by import filters for external file formats that have to check a predefined password in some cases without asking the user for a password. Every password is checked using the passed password verifier. If not successful, this media descriptor is asked for a password, that has been set e.g. by an API call to load a document. If existing, the password is checked using the passed password verifier. If still not successful, the interaction handler contained in this media descriptor is used to request a password from the user. This will be repeated until the passed password verifier validates the entered password, or if the user chooses to cancel password input. If a valid password (that is not contained in the passed list of default passwords) was found, it will be inserted into the "Password" property of this descriptor. @param rVerifier The password verifier used to check every processed password. @param eRequestType The password request type that will be passed to the DocPasswordRequest object created internally. See docpasswordrequest.hxx for more details. @param pDefaultPasswords If not null, contains default passwords that will be tried before a password will be requested from the media descriptor or the user. @return If not empty, contains the password that has been validated by the passed password verifier. If empty, no valid password has been found, or the user has chossen to cancel password input. */ css::uno::Sequence< css::beans::NamedValue > requestAndVerifyDocPassword( comphelper::IDocPasswordVerifier& rVerifier, comphelper::DocPasswordRequestType eRequestType, const ::std::vector< OUString >* pDefaultPasswords = nullptr ); // helper private: /** @short tries to open a stream by using the given PostData stream. @descr The stream is used directly ... The MediaDescriptor itself is changed inside this method. Means: the stream is added internal and not returned by a value. @param _rxPostData the PostData stream. @return TRUE if the stream could be added successfully. Note: If FALSE is returned, the error was already handled inside! @throw [css::uno::RuntimeException] if the MediaDescriptor seems to be invalid! @throw [css::lang::IllegalArgumentException] if the given PostData stream is . */ SAL_DLLPRIVATE bool impl_openStreamWithPostData( const css::uno::Reference< css::io::XInputStream >& _rxPostData ) throw(css::uno::RuntimeException); /** @short tries to open a stream by using the given URL. @descr First it tries to open the content in r/w mode (if its allowed to do so). Only in case its not allowed or it failed the stream will be tried to open in readonly mode. The MediaDescriptor itself is changed inside this method. Means: the stream is added internal and not returned by a value. @param sURL the URL for open. @param bLockFile specifies whether the file should be locked @return TRUE if the stream could be added successfully. Note: If FALSE is returned, the error was already handled inside! @throw [css::uno::RuntimeException] if the MediaDescriptor seems to be invalid! */ SAL_DLLPRIVATE bool impl_openStreamWithURL( const OUString& sURL, bool bLockFile ) throw(css::uno::RuntimeException); /** @short it checks if the descriptor already has a valid InputStream item and creates a new one, if not. @descr This method uses the current items of this MediaDescriptor, to open the stream (as e.g. URL, ReadOnly, PostData etcpp.). It creates a seekable stream and put it into the descriptor. A might existing InteractionHandler will be used automatically, to solve problems! @param bLockFile specifies whether the file should be locked @return TRUE, if the stream was already part of the descriptor or could be created as new item. FALSE otherwise. */ SAL_DLLPRIVATE bool impl_addInputStream( bool bLockFile ); }; } #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab: */