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+/* -*- 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 .
+ */
+
+#include <ViewShellManager.hxx>
+#include <ViewShell.hxx>
+#include <ViewShellBase.hxx>
+#include <Window.hxx>
+#include <DrawDocShell.hxx>
+
+#include <sal/log.hxx>
+#include <sfx2/dispatch.hxx>
+#include <sfx2/viewfrm.hxx>
+#include <svx/svxids.hrc>
+#include <svx/fmshell.hxx>
+#include <vcl/vclevent.hxx>
+#include <osl/diagnose.h>
+
+#include <iterator>
+#include <list>
+#include <unordered_map>
+
+namespace sd {
+
+namespace {
+
+/** The ShellDescriptor class is used to shells together with their ids and
+ the factory that was used to create the shell.
+
+ The shell pointer may be NULL. In that case the shell is created on
+ demand by a factory.
+
+ The factory pointer may be NULL. In that case the shell pointer is
+ given to the ViewShellManager.
+
+ Shell pointer and factory pointer can but should not be NULL at the same
+ time.
+*/
+class ShellDescriptor {
+public:
+ SfxShell* mpShell;
+ ShellId mnId;
+ ViewShellManager::SharedShellFactory mpFactory;
+ bool mbIsListenerAddedToWindow;
+
+ ShellDescriptor ();
+ explicit ShellDescriptor (ShellId nId);
+ vcl::Window* GetWindow() const;
+};
+
+/** This functor can be used to search for a shell in an STL container when the
+ shell pointer is given.
+*/
+class IsShell
+{
+public:
+ explicit IsShell (const SfxShell* pShell) : mpShell(pShell) {}
+ bool operator() (const ShellDescriptor& rDescriptor)
+ { return rDescriptor.mpShell == mpShell; }
+private:
+ const SfxShell* mpShell;
+};
+
+/** This functor can be used to search for a shell in an STL container when the
+ id of the shell is given.
+*/
+class IsId
+{
+public:
+ explicit IsId (ShellId nId) : mnId(nId) {}
+ bool operator() (const ShellDescriptor& rDescriptor)
+ { return rDescriptor.mnId == mnId; }
+private:
+ ShellId mnId;
+};
+
+} // end of anonymous namespace
+
+class ViewShellManager::Implementation
+{
+public:
+ Implementation (
+ ViewShellBase& rBase);
+ ~Implementation() COVERITY_NOEXCEPT_FALSE;
+
+ void AddShellFactory (
+ const SfxShell* pViewShell,
+ const SharedShellFactory& rpFactory);
+ void RemoveShellFactory (
+ const SfxShell* pViewShell,
+ const SharedShellFactory& rpFactory);
+ void ActivateViewShell (
+ ViewShell* pViewShell);
+ void DeactivateViewShell (const ViewShell& rShell);
+ void ActivateShell (SfxShell& rShell);
+ void DeactivateShell (const SfxShell& rShell);
+ void ActivateShell (const ShellDescriptor& rDescriptor);
+ void SetFormShell (const ViewShell* pViewShell, FmFormShell* pFormShell, bool bAbove);
+ void ActivateSubShell (const SfxShell& rParentShell, ShellId nId);
+ void DeactivateSubShell (const SfxShell& rParentShell, ShellId nId);
+ void MoveToTop (const SfxShell& rParentShell);
+ SfxShell* GetShell (ShellId nId) const;
+ SfxShell* GetTopShell() const;
+ SfxShell* GetTopViewShell() const;
+ void Shutdown();
+ void InvalidateAllSubShells (const SfxShell* pParentShell);
+
+ /** Remove all shells from the SFX stack above and including the given
+ shell.
+ */
+ void TakeShellsFromStack (const SfxShell* pShell);
+
+ class UpdateLock
+ {
+ public:
+ explicit UpdateLock (Implementation& rImpl) : mrImpl(rImpl) {mrImpl.LockUpdate();}
+ ~UpdateLock() COVERITY_NOEXCEPT_FALSE {mrImpl.UnlockUpdate();}
+ private:
+ Implementation& mrImpl;
+ };
+
+ /** Prevent updates of the shell stack. While the sub shell manager is
+ locked it will update its internal data structures but not alter the
+ shell stack. Use this method when there are several modifications
+ to the shell stack to prevent multiple rebuilds of the shell stack
+ and resulting broadcasts.
+ */
+ void LockUpdate();
+
+ /** Allow updates of the shell stack. This method has to be called the
+ same number of times as LockUpdate() to really allow a rebuild of
+ the shell stack.
+ */
+ void UnlockUpdate();
+
+private:
+ ViewShellBase& mrBase;
+ mutable ::osl::Mutex maMutex;
+
+ class ShellHash { public: size_t operator()(const SfxShell* p) const { return reinterpret_cast<size_t>(p);} };
+ typedef std::unordered_multimap<const SfxShell*,SharedShellFactory,ShellHash>
+ FactoryList;
+ FactoryList maShellFactories;
+
+ /** List of the active view shells. In order to create gather all shells
+ to put on the shell stack each view shell in this list is asked for
+ its sub-shells (typically toolbars).
+ */
+ typedef std::list<ShellDescriptor> ActiveShellList;
+ ActiveShellList maActiveViewShells;
+
+ typedef std::list<ShellDescriptor> SubShellSubList;
+ typedef std::unordered_map<const SfxShell*,SubShellSubList,ShellHash> SubShellList;
+ SubShellList maActiveSubShells;
+
+ /** In this member we remember what shells we have pushed on the shell
+ stack.
+ */
+ typedef ::std::vector<SfxShell*> ShellStack;
+
+ int mnUpdateLockCount;
+
+ /** The UpdateShellStack() method can be called recursively. This flag
+ is used to communicate between different levels of invocation: if
+ the stack has been updated in an inner call the outer call can (has
+ to) stop and return immediately.
+ */
+ bool mbShellStackIsUpToDate;
+
+ SfxShell* mpFormShell;
+ const ViewShell* mpFormShellParent;
+ bool mbFormShellAboveParent;
+
+ SfxShell* mpTopShell;
+ SfxShell* mpTopViewShell;
+
+
+ void UpdateShellStack();
+
+ void CreateShells();
+
+ /** This method rebuilds the stack of shells that are stacked upon the
+ view shell base.
+ */
+ void CreateTargetStack (ShellStack& rStack) const;
+
+ DECL_LINK(WindowEventHandler, VclWindowEvent&, void);
+
+#if OSL_DEBUG_LEVEL >= 2
+ void DumpShellStack (const ShellStack& rStack);
+ void DumpSfxShellStack();
+#endif
+
+ /** To be called before a shell is taken from the SFX shell stack. This
+ method deactivates an active text editing to avoid problems with
+ undo managers.
+ Afterwards the Deactivate() of the shell is called.
+ */
+ static void Deactivate (SfxShell* pShell);
+
+ ShellDescriptor CreateSubShell (
+ SfxShell const * pShell,
+ ShellId nShellId);
+ void DestroyViewShell (ShellDescriptor& rDescriptor);
+ static void DestroySubShell (const ShellDescriptor& rDescriptor);
+};
+
+//===== ViewShellManager ======================================================
+
+ViewShellManager::ViewShellManager (ViewShellBase& rBase)
+ : mpImpl(new Implementation(rBase)),
+ mbValid(true)
+{
+}
+
+ViewShellManager::~ViewShellManager()
+{
+}
+
+void ViewShellManager::AddSubShellFactory (
+ ViewShell const * pViewShell,
+ const SharedShellFactory& rpFactory)
+{
+ if (mbValid)
+ mpImpl->AddShellFactory(pViewShell, rpFactory);
+}
+
+void ViewShellManager::RemoveSubShellFactory (
+ ViewShell const * pViewShell,
+ const SharedShellFactory& rpFactory)
+{
+ if (mbValid)
+ mpImpl->RemoveShellFactory(pViewShell, rpFactory);
+}
+
+void ViewShellManager::ActivateViewShell (ViewShell* pViewShell)
+{
+ if (mbValid)
+ return mpImpl->ActivateViewShell(pViewShell);
+}
+
+void ViewShellManager::DeactivateViewShell (const ViewShell* pShell)
+{
+ if (mbValid && pShell!=nullptr)
+ mpImpl->DeactivateViewShell(*pShell);
+}
+
+void ViewShellManager::SetFormShell (
+ const ViewShell* pParentShell,
+ FmFormShell* pFormShell,
+ bool bAbove)
+{
+ if (mbValid)
+ mpImpl->SetFormShell(pParentShell,pFormShell,bAbove);
+}
+
+void ViewShellManager::ActivateSubShell (const ViewShell& rViewShell, ShellId nId)
+{
+ if (mbValid)
+ mpImpl->ActivateSubShell(rViewShell,nId);
+}
+
+void ViewShellManager::DeactivateSubShell (const ViewShell& rViewShell, ShellId nId)
+{
+ if (mbValid)
+ mpImpl->DeactivateSubShell(rViewShell,nId);
+}
+
+void ViewShellManager::InvalidateAllSubShells (ViewShell const * pViewShell)
+{
+ if (mbValid)
+ mpImpl->InvalidateAllSubShells(pViewShell);
+}
+
+void ViewShellManager::ActivateShell (SfxShell* pShell)
+{
+ if (mbValid && pShell!=nullptr)
+ mpImpl->ActivateShell(*pShell);
+}
+
+void ViewShellManager::DeactivateShell (const SfxShell* pShell)
+{
+ if (mbValid && pShell!=nullptr)
+ mpImpl->DeactivateShell(*pShell);
+}
+
+void ViewShellManager::MoveToTop (const ViewShell& rParentShell)
+{
+ if (mbValid)
+ mpImpl->MoveToTop(rParentShell);
+}
+
+SfxShell* ViewShellManager::GetShell (ShellId nId) const
+{
+ if (mbValid)
+ return mpImpl->GetShell(nId);
+ else
+ return nullptr;
+}
+
+SfxShell* ViewShellManager::GetTopShell() const
+{
+ if (mbValid)
+ return mpImpl->GetTopShell();
+ else
+ return nullptr;
+}
+
+SfxShell* ViewShellManager::GetTopViewShell() const
+{
+ if (mbValid)
+ return mpImpl->GetTopViewShell();
+ else
+ return nullptr;
+}
+
+void ViewShellManager::Shutdown()
+{
+ if (mbValid)
+ {
+ mpImpl->Shutdown();
+ mbValid = false;
+ }
+}
+
+void ViewShellManager::LockUpdate()
+{
+ mpImpl->LockUpdate();
+}
+
+void ViewShellManager::UnlockUpdate()
+{
+ mpImpl->UnlockUpdate();
+}
+
+//===== ViewShellManager::Implementation ======================================
+
+ViewShellManager::Implementation::Implementation (
+ ViewShellBase& rBase)
+ : mrBase(rBase),
+ mnUpdateLockCount(0),
+ mbShellStackIsUpToDate(true),
+ mpFormShell(nullptr),
+ mpFormShellParent(nullptr),
+ mbFormShellAboveParent(true),
+ mpTopShell(nullptr),
+ mpTopViewShell(nullptr)
+{}
+
+ViewShellManager::Implementation::~Implementation() COVERITY_NOEXCEPT_FALSE
+{
+ Shutdown();
+}
+
+void ViewShellManager::Implementation::AddShellFactory (
+ const SfxShell* pViewShell,
+ const SharedShellFactory& rpFactory)
+{
+ bool bAlreadyAdded (false);
+
+ // Check that the given factory has not already been added.
+ ::std::pair<FactoryList::iterator,FactoryList::iterator> aRange(
+ maShellFactories.equal_range(pViewShell));
+ for (FactoryList::const_iterator iFactory=aRange.first; iFactory!=aRange.second; ++iFactory)
+ if (iFactory->second == rpFactory)
+ {
+ bAlreadyAdded = true;
+ break;
+ }
+
+ // Add the factory if it is not already present.
+ if ( ! bAlreadyAdded)
+ maShellFactories.emplace(pViewShell, rpFactory);
+}
+
+void ViewShellManager::Implementation::RemoveShellFactory (
+ const SfxShell* pViewShell,
+ const SharedShellFactory& rpFactory)
+{
+ ::std::pair<FactoryList::iterator,FactoryList::iterator> aRange(
+ maShellFactories.equal_range(pViewShell));
+ for (FactoryList::iterator iFactory=aRange.first; iFactory!=aRange.second; ++iFactory)
+ if (iFactory->second == rpFactory)
+ {
+ maShellFactories.erase(iFactory);
+ break;
+ }
+}
+
+void ViewShellManager::Implementation::ActivateViewShell (ViewShell* pViewShell)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ ShellDescriptor aResult;
+ aResult.mpShell = pViewShell;
+
+ // Register as window listener so that the shells of the current
+ // window can be moved to the top of the shell stack.
+ if (aResult.mpShell != nullptr)
+ {
+ vcl::Window* pWindow = aResult.GetWindow();
+ if (pWindow != nullptr)
+ {
+ pWindow->AddEventListener(
+ LINK(this, ViewShellManager::Implementation, WindowEventHandler));
+ aResult.mbIsListenerAddedToWindow = true;
+ }
+ else
+ {
+ SAL_WARN("sd.view",
+ "ViewShellManager::ActivateViewShell: "
+ "new view shell has no active window");
+ }
+ }
+
+ ActivateShell(aResult);
+}
+
+void ViewShellManager::Implementation::DeactivateViewShell (const ViewShell& rShell)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ ActiveShellList::iterator iShell (::std::find_if (
+ maActiveViewShells.begin(),
+ maActiveViewShells.end(),
+ IsShell(&rShell)));
+ if (iShell == maActiveViewShells.end())
+ return;
+
+ UpdateLock aLocker (*this);
+
+ ShellDescriptor aDescriptor(*iShell);
+ mrBase.GetDocShell()->Disconnect(dynamic_cast<ViewShell*>(aDescriptor.mpShell));
+ maActiveViewShells.erase(iShell);
+ TakeShellsFromStack(aDescriptor.mpShell);
+
+ // Deactivate sub shells.
+ SubShellList::iterator iList (maActiveSubShells.find(&rShell));
+ if (iList != maActiveSubShells.end())
+ {
+ SubShellSubList& rList (iList->second);
+ while ( ! rList.empty())
+ DeactivateSubShell(rShell, rList.front().mnId);
+ }
+
+ DestroyViewShell(aDescriptor);
+}
+
+void ViewShellManager::Implementation::ActivateShell (SfxShell& rShell)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Create a new shell or recycle on in the cache.
+ ShellDescriptor aDescriptor;
+ aDescriptor.mpShell = &rShell;
+
+ ActivateShell(aDescriptor);
+}
+
+void ViewShellManager::Implementation::ActivateShell (const ShellDescriptor& rDescriptor)
+{
+ // Put shell on top of the active view shells.
+ if (rDescriptor.mpShell != nullptr)
+ {
+ maActiveViewShells.insert( maActiveViewShells.begin(), rDescriptor);
+ }
+}
+
+void ViewShellManager::Implementation::DeactivateShell (const SfxShell& rShell)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ ActiveShellList::iterator iShell (::std::find_if (
+ maActiveViewShells.begin(),
+ maActiveViewShells.end(),
+ IsShell(&rShell)));
+ if (iShell == maActiveViewShells.end())
+ return;
+
+ UpdateLock aLocker (*this);
+
+ ShellDescriptor aDescriptor(*iShell);
+ mrBase.GetDocShell()->Disconnect(dynamic_cast<ViewShell*>(aDescriptor.mpShell));
+ maActiveViewShells.erase(iShell);
+ TakeShellsFromStack(aDescriptor.mpShell);
+
+ // Deactivate sub shells.
+ SubShellList::iterator iList (maActiveSubShells.find(&rShell));
+ if (iList != maActiveSubShells.end())
+ {
+ SubShellSubList& rList (iList->second);
+ while ( ! rList.empty())
+ DeactivateSubShell(rShell, rList.front().mnId);
+ }
+
+ DestroyViewShell(aDescriptor);
+}
+
+void ViewShellManager::Implementation::ActivateSubShell (
+ const SfxShell& rParentShell,
+ ShellId nId)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Check that the given view shell is active.
+ if (std::none_of (maActiveViewShells.begin(), maActiveViewShells.end(), IsShell(&rParentShell)))
+ return;
+
+ // Create the sub shell list if it does not yet exist.
+ SubShellList::iterator iList (maActiveSubShells.find(&rParentShell));
+ if (iList == maActiveSubShells.end())
+ iList = maActiveSubShells.emplace(&rParentShell,SubShellSubList()).first;
+
+ // Do not activate an object bar that is already active. Requesting
+ // this is not exactly an error but may be an indication of one.
+ SubShellSubList& rList (iList->second);
+ if (std::any_of(rList.begin(),rList.end(), IsId(nId)))
+ return;
+
+ // Add just the id of the sub shell. The actual shell is created
+ // later in CreateShells().
+ UpdateLock aLock (*this);
+ rList.emplace_back(nId);
+}
+
+void ViewShellManager::Implementation::DeactivateSubShell (
+ const SfxShell& rParentShell,
+ ShellId nId)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Check that the given view shell is active.
+ SubShellList::iterator iList (maActiveSubShells.find(&rParentShell));
+ if (iList == maActiveSubShells.end())
+ return;
+
+ // Look up the sub shell.
+ SubShellSubList& rList (iList->second);
+ SubShellSubList::iterator iShell (
+ ::std::find_if(rList.begin(),rList.end(), IsId(nId)));
+ if (iShell == rList.end())
+ return;
+ SfxShell* pShell = iShell->mpShell;
+ if (pShell == nullptr)
+ return;
+
+ UpdateLock aLock (*this);
+
+ ShellDescriptor aDescriptor(*iShell);
+ // Remove the sub shell from both the internal structure as well as the
+ // SFX shell stack above and including the sub shell.
+ rList.erase(iShell);
+ TakeShellsFromStack(pShell);
+
+ DestroySubShell(aDescriptor);
+}
+
+void ViewShellManager::Implementation::MoveToTop (const SfxShell& rShell)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Check that we have access to a dispatcher. If not, then we are
+ // (probably) called while the view shell is still being created or
+ // initialized. Without dispatcher we can not rebuild the shell stack
+ // to move the requested shell to the top. So return right away instead
+ // of making a mess without being able to clean up afterwards.
+ if (mrBase.GetDispatcher() == nullptr)
+ return;
+
+ ActiveShellList::iterator iShell (::std::find_if (
+ maActiveViewShells.begin(),
+ maActiveViewShells.end(),
+ IsShell(&rShell)));
+ bool bMove = true;
+ if (iShell != maActiveViewShells.end())
+ {
+ // Is the shell already at the top of the stack? We have to keep
+ // the case in mind that mbKeepMainViewShellOnTop is true. Shells
+ // that are not the main view shell are placed on the second-to-top
+ // position in this case.
+ if (iShell == maActiveViewShells.begin())
+ {
+ // The shell is at the top position and is either a) the main
+ // view shell or b) another shell but the main view shell is not
+ // kept at the top position. We do not have to move the shell.
+ bMove = false;
+ }
+ }
+ else
+ {
+ // The shell is not on the stack. Therefore it can not be moved.
+ // We could insert it but we don't. Use ActivateViewShell() for
+ // that.
+ bMove = false;
+ }
+
+ // When the shell is not at the right position it is removed from the
+ // internal list of shells and inserted at the correct position.
+ if (bMove)
+ {
+ UpdateLock aLock (*this);
+
+ ShellDescriptor aDescriptor(*iShell);
+
+ TakeShellsFromStack(&rShell);
+ maActiveViewShells.erase(iShell);
+
+ maActiveViewShells.insert(maActiveViewShells.begin(), aDescriptor);
+ }
+}
+
+SfxShell* ViewShellManager::Implementation::GetShell (ShellId nId) const
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ SfxShell* pShell = nullptr;
+
+ // First search the active view shells.
+ ActiveShellList::const_iterator iShell (
+ ::std::find_if (
+ maActiveViewShells.begin(),
+ maActiveViewShells.end(),
+ IsId(nId)));
+ if (iShell != maActiveViewShells.end())
+ pShell = iShell->mpShell;
+ else
+ {
+ // Now search the active sub shells of every active view shell.
+ for (auto const& activeSubShell : maActiveSubShells)
+ {
+ const SubShellSubList& rList (activeSubShell.second);
+ SubShellSubList::const_iterator iSubShell(
+ ::std::find_if(rList.begin(),rList.end(), IsId(nId)));
+ if (iSubShell != rList.end())
+ {
+ pShell = iSubShell->mpShell;
+ break;
+ }
+ }
+ }
+
+ return pShell;
+}
+
+SfxShell* ViewShellManager::Implementation::GetTopShell() const
+{
+ OSL_ASSERT(mpTopShell == mrBase.GetSubShell(0));
+ return mpTopShell;
+}
+
+SfxShell* ViewShellManager::Implementation::GetTopViewShell() const
+{
+ return mpTopViewShell;
+}
+
+void ViewShellManager::Implementation::LockUpdate()
+{
+ mnUpdateLockCount++;
+}
+
+void ViewShellManager::Implementation::UnlockUpdate()
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ mnUpdateLockCount--;
+ if (mnUpdateLockCount < 0)
+ {
+ // This should not happen.
+ OSL_ASSERT (mnUpdateLockCount>=0);
+ mnUpdateLockCount = 0;
+ }
+ if (mnUpdateLockCount == 0)
+ UpdateShellStack();
+}
+
+/** Update the SFX shell stack (the portion that is visible to us) so that
+ it matches the internal shell stack. This is done in six steps:
+ 1. Create the missing view shells and sub shells.
+ 2. Set up the internal shell stack.
+ 3. Get the SFX shell stack.
+ 4. Find the lowest shell in which the two stacks differ.
+ 5. Remove all shells above and including that shell from the SFX stack.
+ 6. Push all shells of the internal stack on the SFX shell stack that are
+ not already present on the later.
+*/
+void ViewShellManager::Implementation::UpdateShellStack()
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Remember the undo manager from the top-most shell on the stack.
+ SfxShell* pTopMostShell = mrBase.GetSubShell(0);
+ SfxUndoManager* pUndoManager = (pTopMostShell!=nullptr)
+ ? pTopMostShell->GetUndoManager()
+ : nullptr;
+
+ // 1. Create the missing shells.
+ CreateShells();
+
+ // Update the pointer to the top-most active view shell.
+ mpTopViewShell = (maActiveViewShells.empty())
+ ? nullptr : maActiveViewShells.begin()->mpShell;
+
+
+ // 2. Create the internal target stack.
+ ShellStack aTargetStack;
+ CreateTargetStack(aTargetStack);
+
+ // 3. Get SFX shell stack.
+ ShellStack aSfxShellStack;
+ sal_uInt16 nIndex (0);
+ while (mrBase.GetSubShell(nIndex)!=nullptr)
+ ++nIndex;
+ aSfxShellStack.reserve(nIndex);
+ while (nIndex-- > 0)
+ aSfxShellStack.push_back(mrBase.GetSubShell(nIndex));
+
+#if OSL_DEBUG_LEVEL >= 2
+ SAL_INFO("sd.view", __func__ << ": Current SFX Stack");
+ DumpShellStack(aSfxShellStack);
+ SAL_INFO("sd.view", __func__ << ": Target Stack");
+ DumpShellStack(aTargetStack);
+#endif
+
+ // 4. Find the lowest shell in which the two stacks differ.
+ auto mismatchIters = std::mismatch(aSfxShellStack.begin(), aSfxShellStack.end(),
+ aTargetStack.begin(), aTargetStack.end());
+ ShellStack::iterator iSfxShell (mismatchIters.first);
+ ShellStack::iterator iTargetShell (mismatchIters.second);
+
+ // 5. Remove all shells above and including the differing shell from the
+ // SFX stack starting with the shell on top of the stack.
+ for (std::reverse_iterator<ShellStack::const_iterator> i(aSfxShellStack.end()), iLast(iSfxShell);
+ i != iLast; ++i)
+ {
+ SfxShell* const pShell = *i;
+ SAL_INFO("sd.view", __func__ << ": removing shell " << pShell << " from stack");
+ mrBase.RemoveSubShell(pShell);
+ }
+ aSfxShellStack.erase(iSfxShell, aSfxShellStack.end());
+
+ // 6. Push shells from the given stack onto the SFX stack.
+ mbShellStackIsUpToDate = false;
+ while (iTargetShell != aTargetStack.end())
+ {
+ SAL_INFO("sd.view", __func__ << ": pushing shell " << *iTargetShell << " on stack");
+ mrBase.AddSubShell(**iTargetShell);
+ ++iTargetShell;
+
+ // The pushing of the shell on to the shell stack may have lead to
+ // another invocation of this method. In this case we have to abort
+ // pushing shells on the stack and return immediately.
+ if (mbShellStackIsUpToDate)
+ break;
+ }
+ if (mrBase.GetDispatcher() != nullptr)
+ mrBase.GetDispatcher()->Flush();
+
+ // Update the pointer to the top-most shell and set its undo manager
+ // to the one of the previous top-most shell.
+ mpTopShell = mrBase.GetSubShell(0);
+ if (mpTopShell!=nullptr && pUndoManager!=nullptr && mpTopShell->GetUndoManager()==nullptr)
+ mpTopShell->SetUndoManager(pUndoManager);
+
+ // Finally tell an invocation of this method on a higher level that it can (has
+ // to) abort and return immediately.
+ mbShellStackIsUpToDate = true;
+
+#if OSL_DEBUG_LEVEL >= 2
+ SAL_INFO("sd.view", __func__ << ": New current stack");
+ DumpSfxShellStack();
+#endif
+}
+
+void ViewShellManager::Implementation::TakeShellsFromStack (const SfxShell* pShell)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Remember the undo manager from the top-most shell on the stack.
+ SfxShell* pTopMostShell = mrBase.GetSubShell(0);
+ SfxUndoManager* pUndoManager = (pTopMostShell!=nullptr)
+ ? pTopMostShell->GetUndoManager()
+ : nullptr;
+
+#if OSL_DEBUG_LEVEL >= 2
+ SAL_INFO("sd.view", __func__ << "TakeShellsFromStack( " << pShell << ")");
+ DumpSfxShellStack();
+#endif
+
+ // 0.Make sure that the given shell is on the stack. This is a
+ // preparation for the following assertion.
+ for (sal_uInt16 nIndex=0; true; nIndex++)
+ {
+ SfxShell* pShellOnStack = mrBase.GetSubShell(nIndex);
+ if (pShellOnStack == nullptr)
+ {
+ // Set pShell to NULL to indicate the following code that the
+ // shell is not on the stack.
+ pShell = nullptr;
+ break;
+ }
+ else if (pShellOnStack == pShell)
+ break;
+ }
+
+ if (pShell == nullptr)
+ return;
+
+ // 1. Deactivate our shells on the stack before they are removed so
+ // that during the Deactivation() calls the stack is still intact.
+ for (sal_uInt16 nIndex=0; true; nIndex++)
+ {
+ SfxShell* pShellOnStack = mrBase.GetSubShell(nIndex);
+ Deactivate(pShellOnStack);
+ if (pShellOnStack == pShell)
+ break;
+ }
+
+ // 2. Remove the shells from the stack.
+ while (true)
+ {
+ SfxShell* pShellOnStack = mrBase.GetSubShell(0);
+ SAL_INFO("sd.view", __func__ << "removing shell " << pShellOnStack << " from stack");
+ mrBase.RemoveSubShell(pShellOnStack);
+ if (pShellOnStack == pShell)
+ break;
+ }
+
+ // 3. Update the stack.
+ if (mrBase.GetDispatcher() != nullptr)
+ mrBase.GetDispatcher()->Flush();
+
+ // Update the pointer to the top-most shell and set its undo manager
+ // to the one of the previous top-most shell.
+ mpTopShell = mrBase.GetSubShell(0);
+ if (mpTopShell!=nullptr && pUndoManager!=nullptr && mpTopShell->GetUndoManager()==nullptr)
+ mpTopShell->SetUndoManager(pUndoManager);
+
+#if OSL_DEBUG_LEVEL >= 2
+ SAL_INFO("sd.view", __func__ << "Sfx shell stack is:");
+ DumpSfxShellStack();
+#endif
+}
+
+void ViewShellManager::Implementation::CreateShells()
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Iterate over all view shells.
+ ActiveShellList::reverse_iterator iShell;
+ for (iShell=maActiveViewShells.rbegin(); iShell!=maActiveViewShells.rend(); ++iShell)
+ {
+ // Get the list of associated sub shells.
+ SubShellList::iterator iList (maActiveSubShells.find(iShell->mpShell));
+ if (iList != maActiveSubShells.end())
+ {
+ SubShellSubList& rList (iList->second);
+
+ // Iterate over all sub shells of the current view shell.
+ for (auto & subShell : rList)
+ {
+ if (subShell.mpShell == nullptr)
+ {
+ subShell = CreateSubShell(iShell->mpShell,subShell.mnId);
+ }
+ }
+ }
+ }
+}
+
+void ViewShellManager::Implementation::CreateTargetStack (ShellStack& rStack) const
+{
+ // Create a local stack of the shells that are to push on the shell
+ // stack. We can thus safely create the required shells while still
+ // having a valid shell stack.
+ for (ActiveShellList::const_reverse_iterator iViewShell (maActiveViewShells.rbegin());
+ iViewShell != maActiveViewShells.rend();
+ ++iViewShell)
+ {
+ // Possibly place the form shell below the current view shell.
+ if ( ! mbFormShellAboveParent
+ && mpFormShell!=nullptr
+ && iViewShell->mpShell==mpFormShellParent)
+ {
+ rStack.push_back(mpFormShell);
+ }
+
+ // Put the view shell itself on the local stack.
+ rStack.push_back (iViewShell->mpShell);
+
+ // Possibly place the form shell above the current view shell.
+ if (mbFormShellAboveParent
+ && mpFormShell!=nullptr
+ && iViewShell->mpShell==mpFormShellParent)
+ {
+ rStack.push_back(mpFormShell);
+ }
+
+ // Add all other sub shells.
+ SubShellList::const_iterator iList (maActiveSubShells.find(iViewShell->mpShell));
+ if (iList != maActiveSubShells.end())
+ {
+ const SubShellSubList& rList (iList->second);
+ SubShellSubList::const_reverse_iterator iSubShell;
+ for (iSubShell=rList.rbegin(); iSubShell!=rList.rend(); ++iSubShell)
+ if (iSubShell->mpShell != mpFormShell)
+ rStack.push_back(iSubShell->mpShell);
+ }
+ }
+}
+
+IMPL_LINK(ViewShellManager::Implementation, WindowEventHandler, VclWindowEvent&, rEvent, void)
+{
+ vcl::Window* pEventWindow = rEvent.GetWindow();
+
+ switch (rEvent.GetId())
+ {
+ case VclEventId::WindowGetFocus:
+ {
+ for (auto const& activeShell : maActiveViewShells)
+ {
+ if (pEventWindow == activeShell.GetWindow())
+ {
+ MoveToTop(*activeShell.mpShell);
+ break;
+ }
+ }
+ }
+ break;
+
+ case VclEventId::WindowLoseFocus:
+ break;
+
+ case VclEventId::ObjectDying:
+ // Remember that we do not have to remove the window
+ // listener for this window.
+ for (auto & activeViewShell : maActiveViewShells)
+ {
+ if (activeViewShell.GetWindow() == pEventWindow)
+ {
+ activeViewShell.mbIsListenerAddedToWindow = false;
+ break;
+ }
+ }
+ break;
+
+ default: break;
+ }
+}
+
+ShellDescriptor ViewShellManager::Implementation::CreateSubShell (
+ SfxShell const * pParentShell,
+ ShellId nShellId)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+ ShellDescriptor aResult;
+
+ // Look up the factories for the parent shell.
+ ::std::pair<FactoryList::iterator,FactoryList::iterator> aRange(
+ maShellFactories.equal_range(pParentShell));
+
+ // Try all factories to create the shell.
+ for (FactoryList::const_iterator iFactory=aRange.first; iFactory!=aRange.second; ++iFactory)
+ {
+ SharedShellFactory pFactory = iFactory->second;
+ if (pFactory != nullptr)
+ aResult.mpShell = pFactory->CreateShell(nShellId);
+
+ // Exit the loop when the shell has been successfully created.
+ if (aResult.mpShell != nullptr)
+ {
+ aResult.mpFactory = pFactory;
+ aResult.mnId = nShellId;
+ break;
+ }
+ }
+
+ return aResult;
+}
+
+void ViewShellManager::Implementation::DestroyViewShell (
+ ShellDescriptor& rDescriptor)
+{
+ OSL_ASSERT(rDescriptor.mpShell != nullptr);
+
+ if (rDescriptor.mbIsListenerAddedToWindow)
+ {
+ rDescriptor.mbIsListenerAddedToWindow = false;
+ vcl::Window* pWindow = rDescriptor.GetWindow();
+ if (pWindow != nullptr)
+ {
+ pWindow->RemoveEventListener(
+ LINK(this, ViewShellManager::Implementation, WindowEventHandler));
+ }
+ }
+
+ // Destroy the sub shell factories.
+ ::std::pair<FactoryList::iterator,FactoryList::iterator> aRange(
+ maShellFactories.equal_range(rDescriptor.mpShell));
+ if (aRange.first != maShellFactories.end())
+ maShellFactories.erase(aRange.first, aRange.second);
+
+ // Release the shell.
+ if (rDescriptor.mpFactory)
+ rDescriptor.mpFactory->ReleaseShell(rDescriptor.mpShell);
+}
+
+void ViewShellManager::Implementation::DestroySubShell (
+ const ShellDescriptor& rDescriptor)
+{
+ OSL_ASSERT(rDescriptor.mpFactory);
+ rDescriptor.mpFactory->ReleaseShell(rDescriptor.mpShell);
+}
+
+void ViewShellManager::Implementation::InvalidateAllSubShells (const SfxShell* pParentShell)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ SubShellList::iterator iList (maActiveSubShells.find(pParentShell));
+ if (iList != maActiveSubShells.end())
+ {
+ SubShellSubList& rList (iList->second);
+ for (auto const& shell : rList)
+ if (shell.mpShell != nullptr)
+ shell.mpShell->Invalidate();
+ }
+}
+
+void ViewShellManager::Implementation::Shutdown()
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ // Take stacked shells from stack.
+ if ( ! maActiveViewShells.empty())
+ {
+ UpdateLock aLock (*this);
+
+ while ( ! maActiveViewShells.empty())
+ {
+ SfxShell* pShell = maActiveViewShells.front().mpShell;
+ if (pShell != nullptr)
+ {
+ ViewShell* pViewShell = dynamic_cast<ViewShell*>(pShell);
+ if (pViewShell != nullptr)
+ DeactivateViewShell(*pViewShell);
+ else
+ DeactivateShell(*pShell);
+ }
+ else
+ {
+ SAL_WARN("sd.view",
+ "ViewShellManager::Implementation::Shutdown(): empty active shell descriptor");
+ maActiveViewShells.pop_front();
+ }
+ }
+ }
+ mrBase.RemoveSubShell ();
+
+ maShellFactories.clear();
+}
+
+#if OSL_DEBUG_LEVEL >= 2
+void ViewShellManager::Implementation::DumpShellStack (const ShellStack& rStack)
+{
+ ShellStack::const_reverse_iterator iEntry;
+ for (iEntry=rStack.rbegin(); iEntry!=rStack.rend(); ++iEntry)
+ if (*iEntry != NULL)
+ SAL_INFO("sd.view", __func__ << ": " <<
+ *iEntry << " : " <<
+ (*iEntry)->GetName());
+ else
+ SAL_INFO("sd.view", __func__ << " null");
+}
+
+void ViewShellManager::Implementation::DumpSfxShellStack()
+{
+ ShellStack aSfxShellStack;
+ sal_uInt16 nIndex (0);
+ while (mrBase.GetSubShell(nIndex)!=NULL)
+ ++nIndex;
+ aSfxShellStack.reserve(nIndex);
+ while (nIndex-- > 0)
+ aSfxShellStack.push_back(mrBase.GetSubShell(nIndex));
+ DumpShellStack(aSfxShellStack);
+}
+#endif
+
+void ViewShellManager::Implementation::Deactivate (SfxShell* pShell)
+{
+ OSL_ASSERT(pShell!=nullptr);
+
+ // We have to end a text edit for view shells that are to be taken from
+ // the shell stack.
+ ViewShell* pViewShell = dynamic_cast<ViewShell*>(pShell);
+ if (pViewShell != nullptr)
+ {
+ sd::View* pView = pViewShell->GetView();
+ if (pView!=nullptr && pView->IsTextEdit())
+ {
+ pView->SdrEndTextEdit();
+ pView->UnmarkAll();
+ pViewShell->GetViewFrame()->GetDispatcher()->Execute(
+ SID_OBJECT_SELECT,
+ SfxCallMode::ASYNCHRON);
+ }
+ }
+
+ // Now we can deactivate the shell.
+ pShell->Deactivate(true);
+}
+
+void ViewShellManager::Implementation::SetFormShell (
+ const ViewShell* pFormShellParent,
+ FmFormShell* pFormShell,
+ bool bFormShellAboveParent)
+{
+ ::osl::MutexGuard aGuard (maMutex);
+
+ mpFormShellParent = pFormShellParent;
+ mpFormShell = pFormShell;
+ mbFormShellAboveParent = bFormShellAboveParent;
+}
+
+namespace {
+
+ShellDescriptor::ShellDescriptor()
+ : mpShell(nullptr),
+ mnId(ToolbarId::None),
+ mbIsListenerAddedToWindow(false)
+{
+}
+
+ShellDescriptor::ShellDescriptor (
+ ShellId nId)
+ : mpShell(nullptr),
+ mnId(nId),
+ mbIsListenerAddedToWindow(false)
+{
+}
+
+vcl::Window* ShellDescriptor::GetWindow() const
+{
+ ViewShell* pViewShell = dynamic_cast<ViewShell*>(mpShell);
+ if (pViewShell != nullptr)
+ return pViewShell->GetActiveWindow();
+ else
+ return nullptr;
+}
+
+} // end of anonymous namespace
+
+} // end of namespace sd
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */