src/contentcontrol.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * contentcontrol.cpp:
   4  *
   5  * Contact:
   6  *   Moonlight List (moonlight-list@lists.ximian.com)
   7  *
   8  * Copyright 2007-2009 Novell, Inc. (http://www.novell.com)
   9  *
  10  * See the LICENSE file included with the distribution for details.
  11  *
  12  */
  13
  14 #include <config.h>
  15
  16 #include "application.h"
  17 #include "contentcontrol.h"
  18 #include "managedtypeinfo.h"
  19
  20 ContentControl::ContentControl ()
  21 {
  22         ManagedTypeInfo *type_info = g_new (ManagedTypeInfo, 1);
  23         type_info->Initialize ("System.Windows", "System.Windows.Controls.ContentControl");
  24
  25         SetContentSetsParent (true);
  26         SetObjectType (Type::CONTENTCONTROL);
  27         SetDefaultStyleKey (type_info);
  28         ManagedTypeInfo::Free (type_info);
  29
  30 }
  31
  32 ContentControl::~ContentControl ()
  33 {
  34 }
  35
  36 UIElement *
  37 ContentControl::GetDefaultTemplate ()
  38 {
  39         Value *content = GetValue (ContentControl::ContentProperty);
  40         if (!content || content->GetIsNull ())
  41                 return NULL;
  42
  43         if (content->Is (GetDeployment (), Type::UIELEMENT))
  44                 return content->AsUIElement ();
  45
  46         return Control::GetDefaultTemplate ();
  47 }
  48
  49 void
  50 ContentControl::OnPropertyChanged (PropertyChangedEventArgs *args, MoonError *error)
  51 {
  52         bool clearTemplate = false;
  53         if (args->GetProperty ()->GetOwnerType () != Type::CONTENTCONTROL) {
  54                 Control::OnPropertyChanged (args, error);
  55                 return;
  56         }
  57
  58         if (args->GetId () == ContentControl::ContentProperty) {
  59                 if (args->GetOldValue() && args->GetOldValue()->Is(GetDeployment (), Type::FRAMEWORKELEMENT)) {
  60                         clearTemplate = true;
  61                         if (GetContentSetsParent ()) {
  62                                 args->GetOldValue()->AsFrameworkElement()->SetLogicalParent (NULL, error);
  63                                 if (error->number)
  64                                         return;
  65                         }
  66                 }
  67                 if (args->GetNewValue() && args->GetNewValue()->Is(GetDeployment (), Type::FRAMEWORKELEMENT)) {
  68                         clearTemplate = true;
  69                         if (GetContentSetsParent ()) {
  70                                 args->GetNewValue()->AsFrameworkElement()->SetLogicalParent (this, error);
  71                                 if (error->number)
  72                                         return;
  73                         }
  74                 }
  75                 // I'm not sure why this check is here, but it breaks some Silverlight Toolkit 2.0 (July edition)
  76                 //tests (databinding a SolidColourBrush from FrameworkElement.Background to ContentControl.Content) and
  77                 // nothing regresses when I comment this out.
  78                 //if (!GetContentSetsParent () && args->GetNewValue () && args->GetNewValue()->Is (GetDeployment (), Type::DEPENDENCY_OBJECT) && !args->GetNewValue ()->Is (GetDeployment (), Type::FRAMEWORKELEMENT)) {
  79                 //      MoonError::FillIn (error, MoonError::ARGUMENT, "");
  80                 //      return;
  81                 //}
  82
  83                 if (clearTemplate && GetSubtreeObject ())
  84                         ElementRemoved ((UIElement *) GetSubtreeObject ());
  85
  86                 Emit (ContentControl::ContentChangedEvent, new ContentChangedEventArgs (args->GetOldValue(), args->GetNewValue()));
  87                 InvalidateMeasure ();
  88         }
  89
  90         NotifyListenersOfPropertyChange (args, error);
  91 }
  92
  93 ContentChangedEventArgs::ContentChangedEventArgs (Value *old_content, Value *new_content)
  94 {
  95         SetObjectType (Type::CONTENTCHANGEDEVENTARGS);
  96
  97         this->old_content = old_content;
  98         this->new_content = new_content;
  99 }
 100
 101 ContentChangedEventArgs::~ContentChangedEventArgs ()
 102 {
 103 }
 104
 105 Value*
 106 ContentChangedEventArgs::GetOldContent ()
 107 {
 108         return old_content;
 109 }
 110
 111 Value*
 112 ContentChangedEventArgs::GetNewContent ()
 113 {
 114         return new_content;
 115 }