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Imported Upstream version 4.8.0.309

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Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850
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Xamarin Public Jenkins (auto-signing)
2016-11-10 13:04:39 +00:00
parent ee1447783b
commit 94b2861243
4912 changed files with 390737 additions and 49310 deletions
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124
mcs/class/referencesource/System.Activities.Presentation/Microsoft.Tools.Common/Microsoft/Activities/Presentation/Xaml/ViewStateXamlHelper.cs
View File

@@ -7,6 +7,7 @@ namespace Microsoft.Activities.Presentation.Xaml
using System;
using System.Activities;
using System.Activities.Debugger;
using System.Activities.DynamicUpdate;
using System.Activities.Presentation.View;
using System.Activities.Presentation.ViewState;
using System.Collections.Generic;
@@ -30,6 +31,18 @@ namespace Microsoft.Activities.Presentation.Xaml
XamlDebuggerXmlReader.EndColumnName.MemberName
};
// These are used to discover that we have found a DynamicUpdateInfo.OriginalDefintion or OriginalActivityBuilder
// attached property member. We have "hardcoded" the *MemberName" here because DynamicUpdateInfo has the
// AttachableMemberIdentifier properties marked as private. But the DynamicUpdateInfo class itself is public,
// as are the Get and Set methods.
static readonly string DynamicUpdateOriginalDefinitionMemberName = "OriginalDefinition";
static readonly MethodInfo GetOriginalDefinition = typeof(DynamicUpdateInfo).GetMethod("GetOriginalDefinition");
static readonly MethodInfo SetOriginalDefinition = typeof(DynamicUpdateInfo).GetMethod("SetOriginalDefinition");
static readonly string DynamicUpdateOriginalActivityBuilderMemberName = "OriginalActivityBuilder";
static readonly MethodInfo GetOriginalActivityBuilder = typeof(DynamicUpdateInfo).GetMethod("GetOriginalActivityBuilder");
static readonly MethodInfo SetOriginalActivityBuilder = typeof(DynamicUpdateInfo).GetMethod("SetOriginalActivityBuilder");
// This method collects view state attached properties and generates a Xaml node stream
// with all view state information appearing within the ViewStateManager node.
// It is called when workflow definition is being serialized to string.
@@ -279,6 +292,22 @@ namespace Microsoft.Activities.Presentation.Xaml
// Xaml member definition for IdRef. Used to identify existing IdRef properties in the input nodestream.
XamlMember idRefMember = new XamlMember(IdRef, GetIdRef, SetIdRef, inputReader.SchemaContext);
// These are used to ignore the IdRef members that are inside a DynamicUpdateInfo.OriginalDefinition/OriginalActivityBuilder attached property.
// We need to ignore these because if we don't, the IdRef values for the objects in the actual workflow defintion will be ignored because of the
// duplicate IdRef value. This causes problems with activity designers that depend on the ViewStateManager data to correctly display the workflow
// on the WorkflowDesigner canvas.
XamlMember originalDefinitionMember = new XamlMember(DynamicUpdateOriginalDefinitionMemberName, GetOriginalDefinition, SetOriginalDefinition, inputReader.SchemaContext);
XamlMember originalActivityBuilderMember = new XamlMember(DynamicUpdateOriginalActivityBuilderMemberName, GetOriginalActivityBuilder, SetOriginalActivityBuilder, inputReader.SchemaContext);
// insideOriginalDefintion gets set to true when we find a "StartMember" node for either of the above two attached properties.
// originalDefintionMemberCount gets incremented if we find any "StartMember" and insideOriginalDefinition is true.
// originalDefintionMemberCount gets decremented if we find any "EndMember" and insideOriginalDefintion is true.
// insideOriginalDefintion gets set to false when we find an "EndMember" and originalDefinitionMemberCount gets decremented to 0.
// If insideOriginalDefintion is true when we find an "IdRef" member, we do NOT add that IdRef to the idRefsSeen HashSet to avoid
// duplicates being defined by the IdRefs inside of the OriginalDefinition attached properties.
bool insideOriginalDefinition = false;
int originalDefinitionMemberCount = 0;
// Dictionary containing Ids and corresponding viewstate related
// attached property nodes. Populated by StripViewStateElement method.
Dictionary<string, XamlNodeList> viewStateInfo = null;
@@ -323,9 +352,21 @@ namespace Microsoft.Activities.Presentation.Xaml
break;
case XamlNodeType.StartMember:
// If we find a StartMember for DynamicUpdateInfo.OriginalDefinition or OriginalActivityBuilder, remember that we are
// inside one of those. We don't want to "remember" IdRef values in the idRefsSeen HashSet while inside these attached properties.
if (workflowDefinition.Member.Equals(originalDefinitionMember) || workflowDefinition.Member.Equals(originalActivityBuilderMember))
{
insideOriginalDefinition = true;
}
if (insideOriginalDefinition)
{
originalDefinitionMemberCount++;
}
// Track when the reader enters IdRef. Skip writing the start
// node to the output nodelist until we check for duplicates.
if (workflowDefinition.Member.Equals(idRefMember))
else if (workflowDefinition.Member.Equals(idRefMember))
{
inIdRefMember = true;
skipWritingWorkflowDefinition = true;
@@ -341,38 +382,43 @@ namespace Microsoft.Activities.Presentation.Xaml
case XamlNodeType.Value:
if (inIdRefMember)
{
string idRef = workflowDefinition.Value as string;
if (!string.IsNullOrWhiteSpace(idRef))
// We don't want to deal with the IdRef if we are inside a DynamicUpdateInfo.OriginalDefinition/OriginalActivityBuilder
// attached property.
if (!insideOriginalDefinition)
{
// If IdRef value is a duplicate then do not associate it with
// the stack frame (top of stack == activity node with IdRef member on it).
if (idRefsSeen.Contains(idRef))
string idRef = workflowDefinition.Value as string;
if (!string.IsNullOrWhiteSpace(idRef))
{
stack.Peek().IdRef = null;
}
// If the IdRef value is unique then associate it with the
// stack frame and also write its value into the output nodestream.
else
{
stack.Peek().IdRef = idRef;
idManager.UpdateMap(idRef);
idRefsSeen.Add(idRef);
if (shouldPassLineInfo)
// If IdRef value is a duplicate then do not associate it with
// the stack frame (top of stack == activity node with IdRef member on it).
if (idRefsSeen.Contains(idRef))
{
lineInfoComsumer.SetLineInfo(idRefLineNumber, idRefLinePosition);
stack.Peek().IdRef = null;
}
mergedNodeWriter.WriteStartMember(idRefMember);
if (shouldPassLineInfo)
// If the IdRef value is unique then associate it with the
// stack frame and also write its value into the output nodestream.
else
{
lineInfoComsumer.SetLineInfo(lineInfo.LineNumber, lineInfo.LinePosition);
stack.Peek().IdRef = idRef;
idManager.UpdateMap(idRef);
idRefsSeen.Add(idRef);
if (shouldPassLineInfo)
{
lineInfoComsumer.SetLineInfo(idRefLineNumber, idRefLinePosition);
}
mergedNodeWriter.WriteStartMember(idRefMember);
if (shouldPassLineInfo)
{
lineInfoComsumer.SetLineInfo(lineInfo.LineNumber, lineInfo.LinePosition);
}
mergedNodeWriter.WriteValue(idRef);
shouldWriteIdRefEndMember = true;
}
mergedNodeWriter.WriteValue(idRef);
shouldWriteIdRefEndMember = true;
}
}
// Don't need to write IdRef value into the output
@@ -382,9 +428,21 @@ namespace Microsoft.Activities.Presentation.Xaml
break;
case XamlNodeType.EndMember:
// If we are inside an OriginalDefinition/OriginalActivityBuilder attached property,
// decrement the count and if it goes to zero, set insideOriginalDefintion to false
// because we just encountered the EndMember for it.
if (insideOriginalDefinition)
{
originalDefinitionMemberCount--;
if (originalDefinitionMemberCount == 0)
{
insideOriginalDefinition = false;
}
}
// Exit IdRef node. Skip writing the EndMember node, we would have done
// it as part of reading the IdRef value.
if (inIdRefMember)
if (inIdRefMember && !insideOriginalDefinition)
{
inIdRefMember = false;
skipWritingWorkflowDefinition = true;
@@ -401,6 +459,7 @@ namespace Microsoft.Activities.Presentation.Xaml
mergedNodeWriter.WriteEndMember();
}
}
break;
case XamlNodeType.EndObject:
@@ -592,6 +651,7 @@ namespace Microsoft.Activities.Presentation.Xaml
viewStateSourceLocationMap = null;
XamlNodeList strippedNodeList = new XamlNodeList(inputReader.SchemaContext);
XamlMember viewStateManager = new XamlMember(ViewStateManager, GetViewStateManager, SetViewStateManager, inputReader.SchemaContext);
using (XamlWriter strippedWriter = strippedNodeList.Writer)
{
IXamlLineInfo lineInfo = inputReader as IXamlLineInfo;
@@ -618,7 +678,7 @@ namespace Microsoft.Activities.Presentation.Xaml
return strippedNodeList.GetReader();
}
// This method reads ViewStateManager nodes from the xaml nodestream and outputs that in the
// viewStateInfo dictionary. The input reader is positioned on the ViewStateManagerNode in the nodestream.
static void ReadViewStateInfo(XamlReader inputReader, out Dictionary<string, XamlNodeList> viewStateInfo, out Dictionary<string, SourceLocation> viewStateSourceLocationMap)
@@ -700,7 +760,11 @@ namespace Microsoft.Activities.Presentation.Xaml
}
}
}
else if (globalMemberLevel == 1 && !IsAttachablePropertyForConvert(xamlReader))
// The xamlReader.ReadSubtree and subsequent while loop to get the Id member
// has moved the xamlReader forward to the next member. We need to check to see
// if it is an Attached Property that we care about. If it isn't then we need to
// skip it and not put it in the resulting XamlNodeList.
if (globalMemberLevel == 1 && !IsAttachablePropertyForConvert(xamlReader))
{
skippingUnexpectedAttachedProperty = true;
}