Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 228 insertions, 0 deletions

diff --git a/vcl/source/window/accmgr.cxx b/vcl/source/window/accmgr.cxx
new file mode 100644
index 000000000..26ea9846e
--- /dev/null
+++ b/vcl/source/window/accmgr.cxx
@@ -0,0 +1,228 @@
+/* -*- 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 <accel.hxx>
+#include <accmgr.hxx>
+
+#include <algorithm>
+
+ImplAccelManager::~ImplAccelManager()
+{
+}
+
+bool ImplAccelManager::InsertAccel( Accelerator* pAccel )
+{
+    if ( !mxAccelList ) {
+        mxAccelList.emplace();
+    } else {
+        for (Accelerator* i : *mxAccelList) {
+            if ( i == pAccel ) {
+                return false;
+            }
+        }
+    }
+
+    mxAccelList->insert( mxAccelList->begin(), pAccel );
+    return true;
+}
+
+void ImplAccelManager::RemoveAccel( Accelerator const * pAccel )
+{
+    // do we have a list ?
+    if ( !mxAccelList )
+        return;
+
+    //e.g. #i90599#. Someone starts typing a sequence in a dialog, but doesn't
+    //end it, and then closes the dialog, deleting the accelerators. So if
+    //we're removing an accelerator that a sub-accelerator which is in the
+    //sequence list, throw away the entire sequence
+    if ( mxSequenceList ) {
+        for (sal_uInt16 i = 0; i < pAccel->GetItemCount(); ++i) {
+            Accelerator* pSubAccel = pAccel->GetAccel( pAccel->GetItemId(i) );
+            for (Accelerator* j : *mxSequenceList) {
+                if ( j == pSubAccel ) {
+                    EndSequence();
+                    i = pAccel->GetItemCount();
+                    break;
+                }
+            }
+        }
+    }
+
+    // throw it away
+    auto it = std::find(mxAccelList->begin(), mxAccelList->end(), pAccel);
+    if (it != mxAccelList->end())
+        mxAccelList->erase( it );
+}
+
+void ImplAccelManager::EndSequence()
+{
+    // are we in a list ?
+    if ( !mxSequenceList )
+        return;
+
+    for (Accelerator* pTempAccel : *mxSequenceList)
+    {
+        pTempAccel->mpDel = nullptr;
+    }
+
+    // delete sequence-list
+    mxSequenceList.reset();
+}
+
+bool ImplAccelManager::IsAccelKey( const vcl::KeyCode& rKeyCode )
+{
+    Accelerator* pAccel;
+
+    // do we have accelerators ??
+    if ( !mxAccelList )
+        return false;
+    if ( mxAccelList->empty() )
+        return false;
+
+    // are we in a sequence ?
+    if ( mxSequenceList )
+    {
+        pAccel = mxSequenceList->empty() ? nullptr : (*mxSequenceList)[ 0 ];
+
+        // not found ?
+        if ( !pAccel )
+        {
+            // abort sequence
+            FlushAccel();
+            return false;
+        }
+
+        // can the entry be found ?
+        ImplAccelEntry* pEntry = pAccel->ImplGetAccelData( rKeyCode );
+        if ( pEntry )
+        {
+            Accelerator* pNextAccel = pEntry->mpAccel;
+
+            // is an accelerator coupled ?
+            if ( pNextAccel )
+            {
+
+                mxSequenceList->insert( mxSequenceList->begin(), pNextAccel );
+
+                // call Activate-Handler of the new one
+                pNextAccel->Activate();
+                return true;
+            }
+            else
+            {
+                // it is there already !
+                if ( pEntry->mbEnabled )
+                {
+                    // stop sequence (first call deactivate-handler)
+                    EndSequence();
+
+                    // set accelerator of the actual item
+                    // and call the handler
+                    bool bDel = false;
+                    pAccel->mnCurId         = pEntry->mnId;
+                    pAccel->mpDel           = &bDel;
+                    pAccel->Select();
+
+                    // did the accelerator survive the call
+                    if ( !bDel )
+                    {
+                        pAccel->mnCurId         = 0;
+                        pAccel->mpDel           = nullptr;
+                    }
+
+                    return true;
+                }
+                else
+                {
+                    // stop sequence as the accelerator was disabled
+                    // transfer the key (to the system)
+                    FlushAccel();
+                    return false;
+                }
+            }
+        }
+        else
+        {
+            // wrong key => stop sequence
+            FlushAccel();
+            return false;
+        }
+    }
+
+    // step through the list of accelerators
+    for (Accelerator* i : *mxAccelList)
+    {
+        pAccel = i;
+
+        // is the entry contained ?
+        ImplAccelEntry* pEntry = pAccel->ImplGetAccelData( rKeyCode );
+        if ( pEntry )
+        {
+            Accelerator* pNextAccel = pEntry->mpAccel;
+
+            // is an accelerator assigned ?
+            if ( pNextAccel )
+            {
+
+                // create sequence list
+                mxSequenceList.emplace();
+                mxSequenceList->insert( mxSequenceList->begin(), pAccel     );
+                mxSequenceList->insert( mxSequenceList->begin(), pNextAccel );
+
+                // call activate-Handler of the new one
+                pNextAccel->Activate();
+
+                return true;
+            }
+            else
+            {
+                // already assigned !
+                if ( pEntry->mbEnabled )
+                {
+                    // first call activate/deactivate-Handler
+                    pAccel->Activate();
+
+                    // define accelerator of the actual item
+                    // and call the handler
+                    bool bDel = false;
+                    pAccel->mnCurId         = pEntry->mnId;
+                    pAccel->mpDel           = &bDel;
+                    pAccel->Select();
+
+                    // if the accelerator did survive the call
+                    if ( !bDel )
+                    {
+                        pAccel->mnCurId         = 0;
+                        pAccel->mpDel           = nullptr;
+                    }
+
+                    return true;
+                }
+                else
+                    return false;
+            }
+        }
+    }
+
+    return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */