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Diffstat (limited to 'sd/source/ui/framework/factories/ChildWindowPane.cxx')
-rw-r--r-- | sd/source/ui/framework/factories/ChildWindowPane.cxx | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/sd/source/ui/framework/factories/ChildWindowPane.cxx b/sd/source/ui/framework/factories/ChildWindowPane.cxx new file mode 100644 index 000000000..136f6fcb7 --- /dev/null +++ b/sd/source/ui/framework/factories/ChildWindowPane.cxx @@ -0,0 +1,219 @@ +/* -*- 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 <memory> +#include <sal/config.h> +#include <sal/log.hxx> + +#include <utility> + +#include "ChildWindowPane.hxx" + +#include <PaneDockingWindow.hxx> +#include <ViewShellBase.hxx> +#include <ViewShellManager.hxx> +#include <toolkit/helper/vclunohelper.hxx> +#include <sfx2/viewfrm.hxx> + +using namespace ::com::sun::star; +using namespace ::com::sun::star::uno; +using namespace ::com::sun::star::drawing::framework; + +namespace sd::framework { + +ChildWindowPane::ChildWindowPane ( + const Reference<XResourceId>& rxPaneId, + sal_uInt16 nChildWindowId, + ViewShellBase& rViewShellBase, + ::std::unique_ptr<SfxShell> && pShell) + : ChildWindowPaneInterfaceBase(rxPaneId,nullptr), + mnChildWindowId(nChildWindowId), + mrViewShellBase(rViewShellBase), + mpShell(std::move(pShell)), + mbHasBeenActivated(false) +{ + mrViewShellBase.GetViewShellManager()->ActivateShell(mpShell.get()); + + SfxViewFrame* pViewFrame = mrViewShellBase.GetViewFrame(); + if (pViewFrame == nullptr) + return; + + if (mrViewShellBase.IsActive()) + { + if (pViewFrame->KnowsChildWindow(mnChildWindowId)) + { + if (pViewFrame->HasChildWindow(mnChildWindowId)) + { + // The ViewShellBase has already been activated. Make + // the child window visible as soon as possible. + pViewFrame->SetChildWindow(mnChildWindowId, true); + } + else + { + // The window is created asynchronously. Rely on the + // ConfigurationUpdater to try another update, and with + // that another request for this window, in a short + // time. + } + } + else + { + SAL_WARN("sd", "ChildWindowPane:not known"); + } + } + else + { + // The ViewShellBase has not yet been activated. Hide the + // window and wait a little before it is made visible. See + // comments in the GetWindow() method for an explanation. + pViewFrame->SetChildWindow(mnChildWindowId, false); + } +} + +ChildWindowPane::~ChildWindowPane() +{ +} + +void ChildWindowPane::Hide() +{ + SfxViewFrame* pViewFrame = mrViewShellBase.GetViewFrame(); + if (pViewFrame != nullptr) + if (pViewFrame->KnowsChildWindow(mnChildWindowId)) + if (pViewFrame->HasChildWindow(mnChildWindowId)) + pViewFrame->SetChildWindow(mnChildWindowId, false); + + // Release the window because when the child window is shown again it + // may use a different window. + mxWindow = nullptr; +} + +void SAL_CALL ChildWindowPane::disposing() +{ + ::osl::MutexGuard aGuard (m_aMutex); + + mrViewShellBase.GetViewShellManager()->DeactivateShell(mpShell.get()); + mpShell.reset(); + + if (mxWindow.is()) + { + mxWindow->removeEventListener(this); + } + + Pane::disposing(); +} + +vcl::Window* ChildWindowPane::GetWindow() +{ + do + { + if (mxWindow.is()) + // Window already exists => nothing to do. + break; + + // When the window is not yet present then obtain it only when the + // shell has already been activated. The activation is not + // necessary for the code to work properly but is used to optimize + // the layouting and displaying of the window. When it is made + // visible too early then some layouting seems to be made twice or at + // an inconvenient time and the overall process of initializing the + // Impress takes longer. + if (!mbHasBeenActivated && mpShell != nullptr && !mpShell->IsActive()) + break; + + mbHasBeenActivated = true; + SfxViewFrame* pViewFrame = mrViewShellBase.GetViewFrame(); + if (pViewFrame == nullptr) + break; + // The view frame has to know the child window. This can be the + // case, when for example the document is in read-only mode: the + // task pane is then not available. + if ( ! pViewFrame->KnowsChildWindow(mnChildWindowId)) + break; + + pViewFrame->SetChildWindow(mnChildWindowId, true); + SfxChildWindow* pChildWindow = pViewFrame->GetChildWindow(mnChildWindowId); + if (pChildWindow == nullptr) + if (pViewFrame->HasChildWindow(mnChildWindowId)) + { + // The child window is not yet visible. Ask the view frame + // to show it and try again to get access to the child + // window. + pViewFrame->ShowChildWindow(mnChildWindowId); + pChildWindow = pViewFrame->GetChildWindow(mnChildWindowId); + } + + // When the child window is still not visible then we have to try later. + if (pChildWindow == nullptr) + break; + + // From the child window get the docking window and from that the + // content window that is the container for the actual content. + PaneDockingWindow* pDockingWindow = dynamic_cast<PaneDockingWindow*>( + pChildWindow->GetWindow()); + if (pDockingWindow == nullptr) + break; + + // At last, we have access to the window and its UNO wrapper. + mpWindow = &pDockingWindow->GetContentWindow(); + mxWindow = VCLUnoHelper::GetInterface(mpWindow); + + // Register as window listener to be informed when the child window + // is hidden. + if (mxWindow.is()) + mxWindow->addEventListener(this); + } + while (false); + + return mpWindow; +} + +Reference<awt::XWindow> SAL_CALL ChildWindowPane::getWindow() +{ + if (mpWindow == nullptr || ! mxWindow.is()) + GetWindow(); + return Pane::getWindow(); +} + +IMPLEMENT_FORWARD_XINTERFACE2( + ChildWindowPane, + ChildWindowPaneInterfaceBase, + Pane); +IMPLEMENT_FORWARD_XTYPEPROVIDER2( + ChildWindowPane, + ChildWindowPaneInterfaceBase, + Pane); + +//----- XEventListener -------------------------------------------------------- + +void SAL_CALL ChildWindowPane::disposing (const lang::EventObject& rEvent) +{ + ThrowIfDisposed(); + + if (rEvent.Source == mxWindow) + { + // The window is gone but the pane remains alive. The next call to + // GetWindow() may create the window anew. + mxWindow = nullptr; + mpWindow = nullptr; + } +} + +} // end of namespace sd::framework + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |