private void LoadState(object node)
{
UIElement uielement = node as UIElement;
if (uielement == null)
{
return;
}
int persistId = uielement.PersistId;
if (persistId != 0)
{
if (this.HasSubStreams(persistId))
{
ArrayList subStreams = this.GetSubStreams(persistId);
this.LoadSubStreams(uielement, subStreams);
}
if (this._customJournaledObjects != null && this._customJournaledObjects.Contains(persistId))
{
CustomJournalStateInternal state = (CustomJournalStateInternal)this._customJournaledObjects[persistId];
IJournalState journalState = node as IJournalState;
if (journalState != null)
{
journalState.RestoreJournalState(state);
}
}
}
}
// Token: 0x06007B5F RID: 31583 RVA: 0x0022B25C File Offset: 0x0022945C
internal void PrepareForSerialization()
{
if (this._customJournaledObjects != null)
{
foreach (object obj in this._customJournaledObjects)
{
CustomJournalStateInternal customJournalStateInternal = (CustomJournalStateInternal)((DictionaryEntry)obj).Value;
customJournalStateInternal.PrepareForSerialization();
}
}
}
internal void PrepareForSerialization()
{
if (_customJournaledObjects != null)
{
foreach (DictionaryEntry entry in _customJournaledObjects)
{
CustomJournalStateInternal cjs = (CustomJournalStateInternal)entry.Value;
cjs.PrepareForSerialization();
}
}
// Everything in _subStreams is already binary-serialized.
}
private void LoadState(object node)
{
UIElement element = node as UIElement;
if (element == null)
{
return;
}
#pragma warning disable 618
int persistId = element.PersistId;
#pragma warning restore 618
// Due to
if (persistId != 0)
{
if (this.HasSubStreams(persistId))
{
// Get the properties to restore
ArrayList properties = this.GetSubStreams(persistId);
LoadSubStreams(element, properties);
}
if (_customJournaledObjects != null && _customJournaledObjects.Contains(persistId))
{
CustomJournalStateInternal state =
(CustomJournalStateInternal)_customJournaledObjects[persistId];
Debug.Assert(state != null);
IJournalState customJournalingObject = node as IJournalState;
//
// For below two scenarios, JournalData cannot be restored successfully. For now, we just
// simply ignore it and don't throw exception.
//
// A. After the tree was created from xaml/baml stream, some elements might be replaced
// programatically with new elements which could be created from other xaml/baml by Parser.
//
// B. If the loose xaml file has been changed since the journal data was created
//
//
if (customJournalingObject != null)
{
customJournalingObject.RestoreJournalState(state);
}
}
}
}
void IJournalState.RestoreJournalState(CustomJournalStateInternal cjs)
{
FramePersistState state = (FramePersistState)cjs;
_navigationService.GuidId = state.NavSvcGuid;
// Because the JournalOwnershipProperty doesn't have the FrameworkPropertyMetadataOptions.Journal
// flag, the parser will always set the value specified in markup, which may be different from
// state.JournalOwnership. So, at this point JournalOwnership is not necessarily Automatic
// (the default).
JournalOwnership = state.JournalOwnership;
if(_journalOwnership == JournalOwnership.OwnsJournal)
{
Invariant.Assert(state.Journal != null);
_ownJournalScope.Journal = state.Journal;
}
if(state.JournalEntry != null)
{
state.JournalEntry.Navigate(this, NavigationMode.Back);
}
}
/// <summary>
/// <see cref="IJournalState.RestoreJournalState"/>
/// </summary>
void IJournalState.RestoreJournalState(CustomJournalStateInternal state)
{
JournalState viewerState = state as JournalState;
if (state != null)
{
SetCurrentValueInternal(ZoomProperty, viewerState.Zoom);
if (viewerState.ContentPosition != -1)
{
FlowDocument document = Document as FlowDocument;
if (document != null)
{
TextContainer textContainer = document.StructuralCache.TextContainer;
if (viewerState.ContentPosition <= textContainer.SymbolCount)
{
TextPointer contentPosition = textContainer.CreatePointerAtOffset(viewerState.ContentPosition, viewerState.ContentPositionDirection);
// This need be called because the UI may not be ready when Contentposition is set.
Dispatcher.BeginInvoke(DispatcherPriority.Input, new DispatcherOperationCallback(BringContentPositionIntoView), contentPosition);
}
}
}
}
}
private bool RestoreRootViewerState(CustomJournalStateInternal rvs)
{
Debug.Assert(!(_bp is Visual));
Visual v = _navigatorHostImpl.FindRootViewer();
if (v == null)
return false; // Template may not be applied yet.
IJournalState ijs = v as IJournalState;
if (ijs != null)
{
ijs.RestoreJournalState(rvs);
}
//else: maybe type of viewer changed. Still returning true so that restoring state
// is not reattempted in this case.
return true;
}
/// <summary>
/// <see cref="IJournalState.RestoreJournalState"/>
/// </summary>
void IJournalState.RestoreJournalState(CustomJournalStateInternal state)
{
JournalState viewerState = state as JournalState;
if (state != null)
{
SetCurrentValueInternal(ZoomProperty, viewerState.Zoom);
SetCurrentValueInternal(ViewingModeProperty, viewerState.ViewingMode);
if (viewerState.ContentPosition != -1)
{
IFlowDocumentViewer viewer = CurrentViewer;
FlowDocument document = Document;
if (viewer != null && document != null)
{
TextContainer textContainer = document.StructuralCache.TextContainer;
if (viewerState.ContentPosition <= textContainer.SymbolCount)
{
TextPointer contentPosition = textContainer.CreatePointerAtOffset(viewerState.ContentPosition, viewerState.ContentPositionDirection);
viewer.ContentPosition = contentPosition;
}
}
}
}
}
