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319 | /* -*- 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 <FormShellManager.hxx>
#include <EventMultiplexer.hxx>
#include <ViewShell.hxx>
#include <ViewShellBase.hxx>
#include <ViewShellManager.hxx>
#include <Window.hxx>
#include <vcl/vclevent.hxx>
#include <svx/fmshell.hxx>
namespace sd {
namespace {
/** This factory is responsible for creating and deleting the FmFormShell.
*/
class FormShellManagerFactory
: public ::sd::ShellFactory<SfxShell>
{
public:
FormShellManagerFactory (ViewShell& rViewShell, FormShellManager& rManager);
virtual FmFormShell* CreateShell (ShellId nId) override;
virtual void ReleaseShell (SfxShell* pShell) override;
private:
::sd::ViewShell& mrViewShell;
FormShellManager& mrFormShellManager;
};
} // end of anonymous namespace
FormShellManager::FormShellManager (ViewShellBase& rBase)
: mrBase(rBase),
mpFormShell(nullptr),
mbFormShellAboveViewShell(false),
mpSubShellFactory(),
mbIsMainViewChangePending(false),
mpMainViewShellWindow(nullptr)
{
// Register at the EventMultiplexer to be informed about changes in the
// center pane.
Link<sd::tools::EventMultiplexerEvent&,void> aLink (LINK(this, FormShellManager, ConfigurationUpdateHandler));
mrBase.GetEventMultiplexer()->AddEventListener(aLink);
RegisterAtCenterPane();
}
FormShellManager::~FormShellManager()
{
SetFormShell(nullptr);
UnregisterAtCenterPane();
// Unregister from the EventMultiplexer.
Link<sd::tools::EventMultiplexerEvent&,void> aLink (LINK(this, FormShellManager, ConfigurationUpdateHandler));
mrBase.GetEventMultiplexer()->RemoveEventListener(aLink);
if (mpSubShellFactory)
{
ViewShell* pShell = mrBase.GetMainViewShell().get();
if (pShell != nullptr)
mrBase.GetViewShellManager()->RemoveSubShellFactory(pShell,mpSubShellFactory);
}
}
void FormShellManager::SetFormShell (FmFormShell* pFormShell)
{
if (mpFormShell == pFormShell)
return;
// Disconnect from the old form shell.
if (mpFormShell != nullptr)
{
mpFormShell->SetControlActivationHandler(Link<LinkParamNone*,void>());
EndListening(*mpFormShell);
mpFormShell->SetView(nullptr);
}
mpFormShell = pFormShell;
// Connect to the new form shell.
if (mpFormShell != nullptr)
{
mpFormShell->SetControlActivationHandler(
LINK(
this,
FormShellManager,
FormControlActivated));
StartListening(*mpFormShell);
ViewShell* pMainViewShell = mrBase.GetMainViewShell().get();
if (pMainViewShell != nullptr)
{
// Prevent setting the view twice at the FmFormShell.
FmFormView* pFormView = pMainViewShell->GetView();
if (mpFormShell->GetFormView() != pFormView)
mpFormShell->SetView(pFormView);
}
}
// Tell the ViewShellManager where on the stack to place the form shell.
mrBase.GetViewShellManager()->SetFormShell(
mrBase.GetMainViewShell().get(),
mpFormShell,
mbFormShellAboveViewShell);
}
void FormShellManager::RegisterAtCenterPane()
{
ViewShell* pShell = mrBase.GetMainViewShell().get();
if (pShell == nullptr)
return;
// No form shell for the slide sorter. Besides that it is not
// necessary, using both together results in crashes.
if (pShell->GetShellType() == ViewShell::ST_SLIDE_SORTER)
return;
mpMainViewShellWindow = pShell->GetActiveWindow();
if (mpMainViewShellWindow == nullptr)
return;
// Register at the window to get informed when to move the form
// shell to the bottom of the shell stack.
mpMainViewShellWindow->AddEventListener(
LINK(
this,
FormShellManager,
WindowEventHandler));
// Create a shell factory and with it activate the form shell.
OSL_ASSERT(!mpSubShellFactory);
mpSubShellFactory = std::make_shared<FormShellManagerFactory>(*pShell, *this);
mrBase.GetViewShellManager()->AddSubShellFactory(pShell,mpSubShellFactory);
mrBase.GetViewShellManager()->ActivateSubShell(*pShell, ToolbarId::FormLayer_Toolbox);
}
void FormShellManager::UnregisterAtCenterPane()
{
if (mpMainViewShellWindow != nullptr)
{
// Unregister from the window.
mpMainViewShellWindow->RemoveEventListener(
LINK(
this,
FormShellManager,
WindowEventHandler));
mpMainViewShellWindow = nullptr;
}
// Unregister form at the form shell.
SetFormShell(nullptr);
// Deactivate the form shell and destroy the shell factory.
ViewShell* pShell = mrBase.GetMainViewShell().get();
if (pShell != nullptr)
{
mrBase.GetViewShellManager()->DeactivateSubShell(*pShell, ToolbarId::FormLayer_Toolbox);
mrBase.GetViewShellManager()->RemoveSubShellFactory(pShell, mpSubShellFactory);
}
mpSubShellFactory.reset();
}
IMPL_LINK_NOARG(FormShellManager, FormControlActivated, LinkParamNone*, void)<--- syntax error
{
// The form shell has been activated. To give it priority in reacting to
// slot calls the form shell is moved to the top of the object bar shell
// stack.
ViewShell* pShell = mrBase.GetMainViewShell().get();
if (pShell!=nullptr && !mbFormShellAboveViewShell)
{
mbFormShellAboveViewShell = true;
ViewShellManager::UpdateLock aLock (mrBase.GetViewShellManager());
mrBase.GetViewShellManager()->SetFormShell(pShell,mpFormShell,mbFormShellAboveViewShell);
}
}
IMPL_LINK(FormShellManager, ConfigurationUpdateHandler, sd::tools::EventMultiplexerEvent&, rEvent, void)
{
switch (rEvent.meEventId)
{
case EventMultiplexerEventId::MainViewRemoved:
UnregisterAtCenterPane();
break;
case EventMultiplexerEventId::MainViewAdded:
mbIsMainViewChangePending = true;
break;
case EventMultiplexerEventId::ConfigurationUpdated:
if (mbIsMainViewChangePending)
{
mbIsMainViewChangePending = false;
RegisterAtCenterPane();
}
break;
default:
break;
}
}
IMPL_LINK(FormShellManager, WindowEventHandler, VclWindowEvent&, rEvent, void)
{
switch (rEvent.GetId())
{
case VclEventId::WindowGetFocus:
{
// The window of the center pane got the focus. Therefore
// the form shell is moved to the bottom of the object bar
// stack.
ViewShell* pShell = mrBase.GetMainViewShell().get();
if (pShell!=nullptr && mbFormShellAboveViewShell)
{
mbFormShellAboveViewShell = false;
ViewShellManager::UpdateLock aLock (mrBase.GetViewShellManager());
mrBase.GetViewShellManager()->SetFormShell(
pShell,
mpFormShell,
mbFormShellAboveViewShell);
}
}
break;
case VclEventId::WindowLoseFocus:
// We follow the sloppy focus policy. Losing the focus is
// ignored. We wait for the focus to be placed either in
// the window or the form shell. The later, however, is
// notified over the FormControlActivated handler, not this
// one.
break;
case VclEventId::ObjectDying:
mpMainViewShellWindow = nullptr;
break;
default: break;
}
}
void FormShellManager::Notify(SfxBroadcaster&, const SfxHint& rHint)
{
if (rHint.GetId()!=SfxHintId::Dying)
return;
// If all goes well this listener is called after the
// FormShellManager was notified about the dying form shell by the
// FormShellManagerFactory.
OSL_ASSERT(mpFormShell==nullptr);
if (mpFormShell != nullptr)
{
mpFormShell = nullptr;
mrBase.GetViewShellManager()->SetFormShell(
mrBase.GetMainViewShell().get(),
nullptr,
false);
}
}
//===== FormShellManagerFactory ===============================================
namespace {
FormShellManagerFactory::FormShellManagerFactory (
::sd::ViewShell& rViewShell,
FormShellManager& rManager)
: mrViewShell(rViewShell),
mrFormShellManager(rManager)
{
}
FmFormShell* FormShellManagerFactory::CreateShell( ::sd::ShellId nId )
{
FmFormShell* pShell = nullptr;
::sd::View* pView = mrViewShell.GetView();
if (nId == ToolbarId::FormLayer_Toolbox)
{
pShell = new FmFormShell(&mrViewShell.GetViewShellBase(), pView);
mrFormShellManager.SetFormShell(pShell);
}
return pShell;
}
void FormShellManagerFactory::ReleaseShell (SfxShell* pShell)
{
if (pShell != nullptr)
{
mrFormShellManager.SetFormShell(nullptr);
delete pShell;
}
}
} // end of anonymous namespace
} // end of namespace sd
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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