/// <summary>
/// To avoid changing the clipboard during a copy/cut and paste action.
/// One solution for this is to save clipboard into a temp slide and revert clipboard afterwards.
/// </summary>
public static TResult RestoreClipboardAfterAction <TResult>(System.Func <TResult> action, PowerPointPresentation pres, PowerPointSlide origSlide)
{
TResult result;
if (!IsClipboardEmpty())
{
// Save clipboard onto a temp slide
PowerPointSlide tempClipboardSlide = null;
ShapeRange tempClipboardShapes = null;
SlideRange tempPastedSlide = null;
Logger.Log("RestoreClipboardAfterAction: Trying to paste as slide.", ActionFramework.Common.Logger.LogType.Info);
tempPastedSlide = TryPastingAsSlide(pres, origSlide);
if (tempPastedSlide == null)
{
tempClipboardSlide = pres.AddSlide();
Logger.Log("RestoreClipboardAfterAction: Trying to paste as text.", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsText(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste as shape.", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsShape(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste as PNG picture", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsPNG(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste as bitmap picture", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsBitmap(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste onto view", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingOntoView(pres, tempClipboardSlide, origSlide);
}
result = action();
RestoreClipboard(tempClipboardShapes, tempPastedSlide);
if (tempClipboardSlide != null)
{
tempClipboardSlide.Delete();
}
}
else
{
// Clipboard is empty, we can just run the action function
result = action();
}
return(result);
}
/// <summary>
/// To avoid changing the clipboard during a copy/cut and paste action.
/// One solution for this is to save clipboard into a temp slide and revert clipboard afterwards.
/// </summary>
public static void RestoreClipboardAfterAction(System.Action action, PowerPointPresentation pres, PowerPointSlide origSlide)
{
if (!IsClipboardEmpty())
{
// Save clipboard onto a temp slide
PowerPointSlide tempClipboardSlide = null;
ShapeRange tempClipboardShapes = null;
SlideRange tempPastedSlide = null;
Shape tempClipboardShape = null;
Logger.Log("RestoreClipboardAfterAction: Trying to paste as slide.", ActionFramework.Common.Logger.LogType.Info);
tempPastedSlide = TryPastingAsSlide(pres, origSlide);
if (tempPastedSlide == null)
{
tempClipboardSlide = pres.AddSlide();
Logger.Log("RestoreClipboardAfterAction: Trying to paste as text.", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsText(tempClipboardSlide);
}
if (tempPastedSlide == null && (tempClipboardShapes == null || tempClipboardShapes.Count < 1))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste as shape.", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsShape(tempClipboardSlide);
}
if (tempPastedSlide == null && (tempClipboardShapes == null || tempClipboardShapes.Count < 1))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste onto current view of the document window.", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShape = TryPastingOntoView(pres, tempClipboardSlide, origSlide);
}
action();
RestoreClipboard(tempClipboardShape, tempClipboardShapes, tempPastedSlide);
if (tempClipboardSlide != null)
{
tempClipboardSlide.Delete();
}
}
else
{
// Clipboard is empty, we can just run the action function
action();
}
}
private static ClipboardUtilData SaveClipboardUnsafe(PowerPointPresentation pres, PowerPointSlide origSlide)
{
PowerPointSlide tempClipboardSlide = null;
ShapeRange tempClipboardShapes = null;
SlideRange tempPastedSlide = null;
tempPastedSlide = TryPastingAsSlide(pres, origSlide);
if (tempPastedSlide == null)
{
tempClipboardSlide = pres.AddSlide();
Logger.Log("RestoreClipboardAfterAction: Trying to paste as text.", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsText(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste as shape.", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsShape(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste as PNG picture", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsPNG(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste as bitmap picture", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingAsBitmap(tempClipboardSlide);
}
if (CheckIfPastingFailed(tempPastedSlide, tempClipboardShapes))
{
Logger.Log("RestoreClipboardAfterAction: Trying to paste onto view", ActionFramework.Common.Logger.LogType.Info);
tempClipboardShapes = TryPastingOntoView(pres, tempClipboardSlide, origSlide);
}
return(new ClipboardUtilData()
{
tempClipboardSlide = tempClipboardSlide,
tempClipboardShapes = tempClipboardShapes,
tempPastedSlide = tempPastedSlide
});
}
protected override ShapeRange ExecutePasteAction(string ribbonId, PowerPointPresentation presentation, PowerPointSlide slide,
ShapeRange selectedShapes, ShapeRange selectedChildShapes)
{
PowerPointSlide tempSlide = presentation.AddSlide(index: slide.Index);
ShapeRange tempPastingShapes = PasteShapesFromClipboard(tempSlide);
if (tempPastingShapes == null)
{
tempSlide.Delete();
return(PasteShapesFromClipboard(slide));
}
ShapeRange pastingShapes = slide.CopyShapesToSlide(tempPastingShapes);
tempSlide.Delete();
return(pastingShapes);
}
protected override ShapeRange ExecutePasteAction(string ribbonId, PowerPointPresentation presentation, PowerPointSlide slide,
ShapeRange selectedShapes, ShapeRange selectedChildShapes)
{
PowerPointSlide tempSlide = presentation.AddSlide(index: slide.Index);
ShapeRange tempPastingShapes = ClipboardUtil.PasteShapesFromClipboard(presentation, tempSlide);
if (tempPastingShapes == null)
{
tempSlide.Delete();
ShapeRange shapes = ClipboardUtil.PasteShapesFromClipboard(presentation, slide);
if (shapes == null)
{
Logger.Log("PasteLab: Could not paste clipboard contents.");
MessageBox.Show(PasteLabText.ErrorPaste, PasteLabText.ErrorDialogTitle);
}
return(shapes);
}
ShapeRange pastingShapes = slide.CopyShapesToSlide(tempPastingShapes);
tempSlide.Delete();
return(pastingShapes);
}
// Sealed method: Subclasses should override ExecutePasteAction instead
protected sealed override void ExecuteAction(string ribbonId)
{
this.StartNewUndoEntry();
PowerPointPresentation presentation = this.GetCurrentPresentation();
PowerPointSlide slide = this.GetCurrentSlide();
Selection selection = this.GetCurrentSelection();
if (ClipboardUtil.IsClipboardEmpty())
{
Logger.Log(ribbonId + " failed. Clipboard is empty.");
return;
}
ShapeRange passedSelectedShapes = null;
ShapeRange passedSelectedChildShapes = null;
if (ShapeUtil.IsSelectionShape(selection) && !IsSelectionIgnored(ribbonId))
{
// When pasting some objects, the selection may change to the pasted object (e.g. jpg from desktop).
// Therefore we must capture the selection first.
ShapeRange selectedShapes = selection.ShapeRange;
// Save clipboard onto a temp slide, because CorruptionCorrrection uses Copy-Paste
PowerPointSlide tempClipboardSlide = presentation.AddSlide(index: slide.Index);
ShapeRange tempClipboardShapes = ClipboardUtil.PasteShapesFromClipboard(tempClipboardSlide);
// Nothing is pasted, stop now
if (tempClipboardShapes == null)
{
tempClipboardSlide.Delete();
return;
}
// Preserve selection by tagging them
for (int i = 1; i <= selectedShapes.Count; i++)
{
selectedShapes[i].Tags.Add(SelectOrderTagName, i.ToString());
}
ShapeRange selectedChildShapes = null;
if (selection.HasChildShapeRange)
{
selectedChildShapes = selection.ChildShapeRange;
for (int i = 1; i <= selectedChildShapes.Count; i++)
{
selectedChildShapes[i].Tags.Add(SelectChildOrderTagName, i.ToString());
}
}
// Corruption correction
ShapeRange correctedShapes = ShapeUtil.CorruptionCorrection(selectedShapes, slide);
// Reselect the preserved selections
List <Shape> correctedShapeList = new List <Shape>();
List <Shape> correctedChildShapeList = new List <Shape>();
foreach (Shape shape in correctedShapes)
{
correctedShapeList.Add(shape);
correctedChildShapeList.AddRange(ShapeUtil.GetChildrenWithNonEmptyTag(shape, SelectChildOrderTagName));
}
correctedShapeList.Sort((sh1, sh2) => int.Parse(sh1.Tags[SelectOrderTagName]) - int.Parse(sh2.Tags[SelectOrderTagName]));
correctedChildShapeList.Sort((sh1, sh2) => int.Parse(sh1.Tags[SelectChildOrderTagName]) - int.Parse(sh2.Tags[SelectChildOrderTagName]));
passedSelectedShapes = slide.ToShapeRange(correctedShapeList);
passedSelectedChildShapes = slide.ToShapeRange(correctedChildShapeList);
// Remove shape tags after they have been used
ShapeUtil.DeleteTagFromShapes(passedSelectedShapes, SelectOrderTagName);
ShapeUtil.DeleteTagFromShapes(passedSelectedChildShapes, SelectChildOrderTagName);
// Revert clipboard
tempClipboardShapes.Copy();
tempClipboardSlide.Delete();
}
ShapeRange result = ExecutePasteAction(ribbonId, presentation, slide, passedSelectedShapes, passedSelectedChildShapes);
if (result != null)
{
result.Select();
}
}