lcl/(Shell)TreeView: Add "FindOptions" so that FindNodeWithTextPath works in TShellTreeView even with collapsed nodes and in case-insensitive file systems.

lcl/comctrls.pp

@@ -3528,9 +3528,14 @@ type
     function AllowMultiSelectWithShift(AState: TShiftState): Boolean;
     procedure SetExpandSignSize(const AExpandSignSize: integer);
     procedure SetExpandSignWidth(const AValue: integer);
+  protected
+    type
+      TFindOption = (foFindIgnoresCase, foFindExpands);
+      TFindOptions = set of TFindOption;
   protected
     FChangeTimer: TTimer;
     FEditor: TEdit;
+    FFindOptions: TFindOptions;
     class procedure WSRegisterClass; override;
     class function GetControlClassDefaultSize: TSize; override;
     procedure Added(Node: TTreeNode); virtual;

lcl/include/treeview.inc

@@ -1406,8 +1406,15 @@ end;
 function TTreeNode.FindNode(const NodeText: string): TTreeNode;
 begin
   Result:=GetFirstChild;
-  while (Result<>nil) and (Result.Text<>NodeText) do
-    Result:=Result.GetNextSibling;
+  if (foFindIgnoresCase in FOwner.FOwner.FFindOptions) then
+  begin
+    while (Result <> nil) and not SameText(Result.Text, NodeText) do
+      Result := Result.GetNextSibling;
+  end else
+  begin
+    while (Result<>nil) and (Result.Text<>NodeText) do
+      Result:=Result.GetNextSibling;
+  end;
 end;
 
 function TTreeNode.GetTextPath: string;
@@ -2642,8 +2649,15 @@ end;
 function TTreeNodes.FindTopLvlNode(const NodeText: string): TTreeNode;
 begin
   Result := GetFirstNode;
-  while Assigned(Result) and (Result.Text <> NodeText) do
-    Result := Result.GetNextSibling;
+  if (foFindIgnoresCase in FOwner.FFindOptions) then
+  begin
+    while Assigned(Result) and not SameText(Result.Text, NodeText) do
+      Result := Result.GetNextSibling;
+  end else
+  begin
+    while Assigned(Result) and (Result.Text <> NodeText) do
+      Result := Result.GetNextSibling;
+  end;
 end;
 
 function TTreeNodes.FindNodeWithText(const NodeText: string): TTreeNode;
@@ -2655,10 +2669,21 @@ end;
 
 function TTreeNodes.FindNodeWithTextPath(TextPath: string): TTreeNode;
 var
-  p: SizeInt;
   CurText: String;
 begin
-  Result:=nil;
+  Result := nil;
+  for CurText in TextPath.Split(FOwner.FPathDelimiter) do
+  begin
+    if Result = nil then
+      Result := FindTopLvlNode(CurText)
+    else begin
+      if (foFindExpands in FOwner.FFindOptions) then
+        Result.Expanded := true;
+      Result := Result.FindNode(CurText);
+    end;
+  end;
+
+{
   repeat
     p:=System.Pos(FOwner.FPathDelimiter,TextPath);
     if p>0 then begin
@@ -2674,6 +2699,7 @@ begin
     else
       Result:=Result.FindNode(CurText);
   until (Result=nil) or (TextPath='');
+  }
 end;
 
 function TTreeNodes.FindNodeWithData(const NodeData: Pointer): TTreeNode;

lcl/shellctrls.pas

@@ -639,6 +639,11 @@ begin
   FInitialRoot := '';
   FUseBuiltinIcons := true;
   PathDelimiter := SysUtils.PathDelim;
+  {$IFDEF CaseInsensitiveFilenames}
+  FFindOptions := [foFindExpands, foFindIgnoresCase];
+  {$ELSE}
+  FFindOptions := [foFindExpands];
+  {$ENDIF}
 
   // Initial property values
   FObjectTypes:= [otFolders];