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| -rw-r--r-- | include/sfx2/shell.hxx | 587 |
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diff --git a/include/sfx2/shell.hxx b/include/sfx2/shell.hxx new file mode 100644 index 000000000..2da1472a8 --- /dev/null +++ b/include/sfx2/shell.hxx @@ -0,0 +1,587 @@ +/* -*- 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_SFX2_SHELL_HXX +#define INCLUDED_SFX2_SHELL_HXX + +#include <memory> +#include <rtl/ustring.hxx> +#include <sal/config.h> +#include <sal/types.h> +#include <svl/typedwhich.hxx> +#include <sfx2/dllapi.h> +#include <svl/SfxBroadcaster.hxx> +#include <o3tl/typed_flags_set.hxx> +#include <o3tl/strong_int.hxx> +#include <optional> + +namespace com::sun::star::embed { struct VerbDescriptor; } +namespace com::sun::star::uno { template <class E> class Sequence; } + +class SfxItemPool; +class SfxPoolItem; +class SfxRequest; +class SfxItemSet; +class SfxInterface; +class SfxViewShell; +class SfxObjectShell; + +class SfxShell; +struct SfxShell_Impl; +class SfxDispatcher; +class SfxViewFrame; +class SfxSlot; +class SfxRepeatTarget; +class SfxBindings; +class SfxModule; +class SfxUndoManager; + +/** + Id for <SfxInterface>s, gives a quasi-static access to the interface + through an array to <SfxApplication>. +*/ +typedef o3tl::strong_int<sal_uInt16, struct SfxInterfaceIdTag> SfxInterfaceId; + +constexpr auto SFX_INTERFACE_NONE = SfxInterfaceId(0); +constexpr auto SFX_INTERFACE_SFXAPP = SfxInterfaceId(1); +constexpr auto SFX_INTERFACE_SFXDOCSH = SfxInterfaceId(2); +constexpr auto SFX_INTERFACE_SFXVIEWSH = SfxInterfaceId(3); +constexpr auto SFX_INTERFACE_SFXVIEWFRM = SfxInterfaceId(4); +constexpr auto SFX_INTERFACE_SFXMODULE = SfxInterfaceId(5); +constexpr auto SFX_INTERFACE_SC_START = SfxInterfaceId(150); +constexpr auto SFX_INTERFACE_SD_START = SfxInterfaceId(200); +constexpr auto SFX_INTERFACE_SW_START = SfxInterfaceId(250); +constexpr auto SFX_INTERFACE_SMA_START = SfxInterfaceId(340); +constexpr auto SFX_INTERFACE_IDE_START = SfxInterfaceId(400); +constexpr auto SFX_INTERFACE_IDE_END = SfxInterfaceId(409); + +enum class SfxShellFeature +{ + NONE = 0x0000, + // Writer only, class SwView + SwChildWindowLabel = 0x0001, + // Basic only, class Shell + BasicShowBrowser = 0x0004, + // Forms only, class FmFormShell + FormShowDatabaseBar = 0x0008, + FormShowField = 0x0010, + FormShowProperties = 0x0020, + FormShowExplorer = 0x0040, + FormShowFilterBar = 0x0080, + FormShowFilterNavigator = 0x0100, + FormShowTextControlBar = 0x0200, + FormTBControls = 0x0400, + FormTBDesign = 0x1000, + FormShowDataNavigator = 0x2000, + // masks to make sure modules don't use flags from another + SwMask = 0x0001, + BasicMask = 0x0004, + FormMask = 0x3ff8 +}; +namespace o3tl +{ + template<> struct typed_flags<SfxShellFeature> : is_typed_flags<SfxShellFeature, 0x37fd> {}; +} + +/* Flags that are being used in the slot definitions for the disable-features */ +enum class SfxDisableFlags { + NONE, + SwOnProtectedCursor = 0x0001, + SwOnMailboxEditor = 0x0002, +}; +namespace o3tl { + template<> struct typed_flags<SfxDisableFlags> : is_typed_flags<SfxDisableFlags, 0x0003> {}; +} + +typedef void (*SfxExecFunc)(SfxShell *, SfxRequest &rReq); +typedef void (*SfxStateFunc)(SfxShell *, SfxItemSet &rSet); + +/** + The class SfxShell is the base class for all classes, which provide + the functionality of the form <Slot>s. + + Each instance has a reference to an interface description, which is + obtainable through <SfxShell::GetInterface()const>. This interface + provides the connection to specific methods and contains some other + descriptive data for controllers like menus and toolboxes, but also + for the various APIs. The main part of the interface description is in + the form of a <Type-Library>, which is generated from an IDL-file by + the <SVIDL-Compiler>. For each SfxShell Subclass-File there is one + such IDL-file to write. +*/ +class SFX2_DLLPUBLIC SfxShell: public SfxBroadcaster +{ + friend class SfxObjectItem; + + std::unique_ptr< SfxShell_Impl > pImpl; + SfxItemPool* pPool; + SfxUndoManager* pUndoMgr; + +private: + SfxShell( const SfxShell & ) = delete; + SfxShell& operator = ( const SfxShell & ) = delete; + +protected: + /** + The constructor of the SfxShell class initializes only simple types, + the corresponding SbxObject is only created on-demand. Therefore, + the application of a SfxShell instance is very cheap. + */ + SfxShell(); + + /** + The constructor of the SfxShell class initializes only simple types, + the corresponding SbxObject is only created on-demand. Therefore, + the application of a SfxShell instance is very cheap. + */ + SfxShell( SfxViewShell *pViewSh ); + + void SetViewShell_Impl( SfxViewShell* pView ); + SAL_DLLPRIVATE void Invalidate_Impl( SfxBindings& rBindings, sal_uInt16 nId ); + static void HandleOpenXmlFilterSettings(SfxRequest &); + +public: + + /** + The connection to a possible corresponding SbxObject is dissolved. + The SbxObject may continue to exist, but can not any longer perform + any functions and can not provide any properties. + */ + virtual ~SfxShell() override; + + /** + With this virtual method, which is automatically overridden by each subclass + with its own slots through the macro <SFX_DECL_INTERFACE>, one can access + each of the <SfxInterface> instance belonging to the subclass. + + The class SfxShell itself has no own SfxInterface (no slots), therefore a + NULL-pointer is returned. + */ + virtual SfxInterface* GetInterface() const; + static SfxInterface* GetStaticInterface() { return nullptr; } + + /** + Sets the name of the Shell object. With this name, the SfxShell instance + of BASIC can be expressed. + */ + void SetName( const OUString &rName ); + + /** + Returns the name of the Shell object. With this name, the SfxShell instance + of BASIC can be expressed. + */ + const OUString& GetName() const; + + /** + Returns the SfxViewShell in which they are located in the subshells. + Otherwise, and if not specified by the App developer, this method + returns NULL. + */ + SfxViewShell* GetViewShell() const; + + static void EmptyExecStub(SfxShell *pShell, SfxRequest &); + static void EmptyStateStub(SfxShell *pShell, SfxItemSet &); + + /** + This method returns the status of the slot with the specified slot ID + on the specified interface. + + If the slot is disabled or in this SfxShell (and their parent shells) are + not known, a Null-pointer is returned. + + If the slot does not have a Status, a SfxVoidItem is returned. + + The status is set directly in this Set when pStateSet != 0 , so that + overridden Slots of the <SfxShell> Subclasses and also in the Status + method of the base implementation can be called. + + [Example] + + In a derived class of SfxViewShell the SID_PRINTDOCDIRECT will be + intercepted. Under certain circumstances a query should appear before + you print, and the request will be aborted if necessary. + + Also in the IDL of this subclass of the above slot is entered. The status + method will contain in outline: + + void SubViewShell::PrintState( SfxItemSet &rState ) + { + if ( rState.GetItemState( SID_PRINTDOCDIRECT ) != SfxItemState::UNKNOWN ) + GetSlotState( SID_PRINTDOCDIRECT, SfxViewShell::GetInterface(), + &rState ); + ... + } + + [Cross-reference] + + <SfxShell::ExecuteSlot(SfxRequest&)> + */ + const SfxPoolItem* GetSlotState( sal_uInt16 nSlotId, const SfxInterface *pIF = nullptr, SfxItemSet *pStateSet = nullptr ); + + /** + This method allows you to forward a <SfxRequest> to the specified + base <SfxShell>. + + [Example] + + In a derived class of SfxViewShell the SID_PRINTDOCDIRECT will be + intercepted. Under certain circumstances a query should appear before + you print, and the request will be aborted if necessary. + + Also in the IDL of this subclass of the above slot is entered. The status + method will contain in outline: + + void SubViewShell::Exec( SfxRequest &rReq ) + { + if ( rReq.GetSlot() == SID_PRINTDOCDIRECT ) + { + 'dialog' + if ( 'condition' ) + ExecuteSlot( rReq, SfxViewShell::GetInterface() ); + } + } + + It usually takes no rReq.Done() to be called as that is already completed + in implementation of the SfxViewShell, for instance it has been canceled. + + [Cross-reference] + + <SfxShell::GetSlotState(sal_uInt16,const SfxInterface*,SfxItemSet*)> + */ + const SfxPoolItem* ExecuteSlot( SfxRequest &rReq, const SfxInterface *pIF = nullptr ); + + /** + Asynchronous ExecuteSlot for the RELOAD + */ + void ExecuteSlot( SfxRequest &rReq, bool bAsync ); + + inline SfxItemPool& GetPool() const; + inline void SetPool( SfxItemPool *pNewPool ) ; + + /** + Each Subclass of SfxShell can have a <SfxUndoManager>. This can be set in + the derived class with <SfxShell:SetUndoManager()>. + + The class SfxShell itself does not have a SfxUndoManager, a NULL-pointer + is therefore returned. + */ + virtual SfxUndoManager* GetUndoManager(); + + /** + Sets a <SfxUndoManager> for this <SfxShell> Instance. For the undo + is only the undo-manager used for SfxShell at the top of the stack of each + <SfxDispatcher>. + + On the given <SfxUndoManager> is automatically the current + Max-Undo-Action-Count setting set from the options. + + 'pNewUndoMgr' must exist until the Destructor of SfxShell instance is called + or until the next 'SetUndoManager()'. + */ + void SetUndoManager( SfxUndoManager *pNewUndoMgr ); + + /** + Returns a pointer to the <SfxRepeatTarget> instance that is used in + SID_REPEAT as repeat target when it is addressed from the <SfxUndoManager> + supplied by this SfxShell. The return value can be NULL. + + [Note] + + A derivation of <SfxShell> or one of its subclasses of <SfxRepeatTarget> + is not recommended, as compiler errors are provoked. + (due to Call-to-Pointer-to-Member-Function to the subclass). + */ + SfxRepeatTarget* GetRepeatTarget() const; + + /** + Sets the <SfxRepeatTarget> instance that is used in SID_REPEAT as + RepeatTarget, when the current supplied by this <SfxUndoManager> is + addressed. By 'pTarget==0' the SID_REPEAT is disabled for this SfxShell. + The instance '*pTarget' must live as long as it is registered. + + [Note] + + A derivation of <SfxShell> or one of its subclasses of <SfxRepeatTarget> + is not recommended, as compiler errors are provoked. + (due to Call-to-Pointer-to-Member-Function to the subclass). + */ + void SetRepeatTarget( SfxRepeatTarget *pTarget ); + + /** + With this method can the slots of the subclasses be invalidated through the + slot Id or alternatively through the Which ID. Slot IDs, which are + inherited by the subclass are also invalidated. + + [Cross-reference] + + <SfxBindings::Invalidate(sal_uInt16)> + <SfxBindings::InvalidateAll(sal_Bool)> + */ + virtual void Invalidate(sal_uInt16 nId = 0); + + virtual bool IsDesignMode() const { return false; }; + + bool IsActive() const; + + /** + Virtual method that is called when enabling the SfxShell instance, + in order to give the Subclasses the opportunity to respond to the + to the enabling. + + [Cross-reference] + + StarView SystemWindow::Activate(bool) + */ + virtual void Activate(bool bMDI); + + /** + Virtual method that is called when disabling the SfxShell instance, + to give the Subclasses the opportunity to respond to the disabling. + + [Cross-reference] + + StarView SystemWindow::Deactivate(bool) + */ + virtual void Deactivate(bool bMDI); + + /** + This method returns a pointer to the <SfxDispatcher>, when the SfxShell + is currently <UI-active> or a NULL-pointer if it is not UI-active. + + The returned pointer is only valid in the immediate context of the method + call. + */ + SfxDispatcher* GetDispatcher() const; + + /** + This method returns a pointer to the <SfxViewFrame> to which this SfxShell + instance is associated or in which they currently is <UI-active>. + A NULL pointer is returned if this SfxShell instance is not UI-active at + the moment and also no SfxViewFrame is permanently assigned. + + The returned pointer is only valid in the immediate context of the method + call. + + [Note] + + Only instances of a subclass of SfxApplication and SfxObjectShell + should here provide a NULL-pointer. Otherwise, there is an error in the + application program (wrong constructor was called from SfxShell). + + [Cross-reference] + + <SfxViewShell::GetViewFrame()const> + */ + SfxViewFrame* GetFrame() const; + + virtual bool HasUIFeature(SfxShellFeature nFeature) const; + void UIFeatureChanged(); + + // Items + /** + With this method any objects of <SfxPoolItemu> subclasses can be accessed. + This exchange method is needed if, for example special <SfxToolBoxControl> + subclasses need access to certain data such as the <SfxObjectShell>. + + The returned instance belongs to the particular SfxShell and may be + used only in the immediate context of the method call. + + [Cross-reference] + + <SfxShell::PutItem(const SfxPoolItem&)> + <SfxShell::RemoveItem(sal_uInt16)> + */ + const SfxPoolItem* GetItem( sal_uInt16 nSlotId ) const; + template<class T> const T* GetItem( TypedWhichId<T> nWhich ) const + { + return static_cast<const T*>(GetItem(sal_uInt16(nWhich))); + } + + /** + With this method, any objects of subclasses of <SfxPoolItem> can be made + available. This exchange technology is needed if, for example, special + <SfxToolBoxControl> Subclasses need access to certain data such as the + <SfxObjectShell> + + If a SfxPoolItem exists with the same slot ID, it is deleted automatically. + + [Cross-reference] + + <SfxShell::RemoveItem(sal_uInt16)> + <SfxShell::GetItem(sal_uInt16)> + */ + void PutItem( const SfxPoolItem& rItem ); + + // TODO/CLEANUP: still needed?! + void SetVerbs(const css::uno::Sequence < css::embed::VerbDescriptor >& aVerbs); + const css::uno::Sequence < css::embed::VerbDescriptor >& GetVerbs() const; + void VerbExec (SfxRequest&); + static void VerbState (SfxItemSet&); + SAL_DLLPRIVATE const SfxSlot* GetVerbSlot_Impl(sal_uInt16 nId) const; + + virtual SfxObjectShell* GetObjectShell(); + void SetDisableFlags( SfxDisableFlags nFlags ); + SfxDisableFlags GetDisableFlags() const; + + virtual std::optional<SfxItemSet> CreateItemSet( sal_uInt16 nId ); + virtual void ApplyItemSet( sal_uInt16 nId, const SfxItemSet& rSet ); + + /** Set the name of the sidebar context that is broadcast on calls + to Activation(). + */ + void SetContextName (const OUString& rsContextName); + + /** Broadcast a sidebar context change. + This method is typically called from Activate() or + Deactivate(). + @param bIsActivated + When <TRUE/> then broadcast the context name that was + defined with an earlier call to SetContextName(). + When <FALSE/> then broadcast the 'default' context. + */ + void BroadcastContextForActivation (const bool bIsActivated); + + /** Enabled or disable the context broadcaster. Returns the old state. + */ + bool SetContextBroadcasterEnabled (const bool bIsEnabled); + + /** + + This method determines by calling the status function whether 'rSlot' + can be executed currently. + */ + SAL_DLLPRIVATE bool CanExecuteSlot_Impl( const SfxSlot &rSlot ); + + /** + + This method determines whether we need to execute without checking + the disabled state of the slot. This is used for dynamic conditions + while you can use SfxSlotMode::FASTCALL for a specific slotid in general. + */ + virtual bool IsConditionalFastCall( const SfxRequest &rReq ); + + /** + + This method controls the activation of SfxShell instance. First, by calling + the virtual method <SfxShell::Activate(sal_Bool)> which gives the subclass the + opportunity to respond to the event. + + When bMDI == TRUE, the associated SbxObject is being 'armed', so that + unqualified methods of the object (without the name of the object) + from BASIC are found. + */ + SAL_DLLPRIVATE void DoActivate_Impl( SfxViewFrame *pFrame, bool bMDI); + + /** + + This method controls the deactivation of the SfxShell instance. When + bMDI == TRUE the SbxObject is first set to a status that only qualified + BASIC methods can be called. + + Then the subclass gets the opportunity in every case to respond to the + event by calling the virtual method <SfxShell::Deactivate(sal_Bool)>. + */ + SAL_DLLPRIVATE void DoDeactivate_Impl( SfxViewFrame const *pFrame, bool bMDI); +}; + +/** + Each Subclass of SfxShell must reference a pool. This is partly set by + SFx's own set of subclasses (eg <SfxViewShell>). In particular however + this must be set directly from one derived SfxShell class and ny + derivatives of SfxObjectShell. + + The SfxShell class itself does not have any SfxItemPool, therefore a + null-pointer is returned. +*/ +SfxItemPool& SfxShell::GetPool() const +{ + assert(pPool && "no pool"); + return *pPool; +} + +/** + With this method, the subclasses register their special <SfxItemPool> + in the SfxShell. Each SfxShell instance must have access to a SfxItemPool. + Usually this is the SfxItemPool of the SfxDocumentShell. The SfxShell + subclass does not take ownership of the orphaned pool. Before it is + deleted it has to be deregistered with SetPool(0). +*/ +inline void SfxShell::SetPool +( + SfxItemPool* pNewPool // Pointer to the new Pool or null +) +{ + pPool = pNewPool; +} + +#define SFX_DECL_INTERFACE(nId) \ + static SfxInterface* s_pInterface; \ + static SfxInterface* GetStaticInterface(); \ + static SfxInterfaceId GetInterfaceId() {return nId;} \ + static void RegisterInterface(const SfxModule* pMod=nullptr); \ + virtual SfxInterface* GetInterface() const override; + +#define SFX_TMPL_INTERFACE(Class,SuperClass,Abstract) \ + \ + SfxInterface* Class::s_pInterface = nullptr; \ + SfxInterface* Class::GetStaticInterface() \ + { \ + if ( !s_pInterface ) \ + { \ + s_pInterface = \ + new SfxInterface( \ + #Class, Abstract, GetInterfaceId(), \ + SuperClass::GetStaticInterface(), \ + a##Class##Slots_Impl[0], \ + sal_uInt16(sizeof(a##Class##Slots_Impl) / sizeof(SfxSlot) ) ); \ + InitInterface_Impl(); \ + } \ + return s_pInterface; \ + } \ + \ + SfxInterface* Class::GetInterface() const \ + { \ + return GetStaticInterface(); \ + } \ + \ + void Class::RegisterInterface(const SfxModule* pMod) \ + { \ + GetStaticInterface()->Register(pMod); \ + } + +#define SFX_IMPL_INTERFACE(Class,SuperClass) \ +SFX_TMPL_INTERFACE(Class,SuperClass,false) \ + +#define SFX_IMPL_SUPERCLASS_INTERFACE(Class,SuperClass) \ +SFX_TMPL_INTERFACE(Class,SuperClass,true) \ + +enum class SfxVisibilityFlags { + Invisible = 0x0000, // Never visible + Viewer = 0x0040, + ReadonlyDoc = 0x0400, + Standard = 0x1000, + FullScreen = 0x2000, + Client = 0x4000, + Server = 0x8000, +}; +namespace o3tl { + template<> struct typed_flags<SfxVisibilityFlags> : is_typed_flags<SfxVisibilityFlags, 0xf440> {}; +} +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |