add more code to handle folder name change/delete + say no rom when t…

…rying to import from empty folder

Database/ROMDatabase.cpp

@@ -216,6 +216,16 @@ task<void> ROMDatabase::LoadSnapshotImage()
 			//load bitmap image for snapshot
 			entry->Snapshot = ref new BitmapImage();
 			return entry->Snapshot->SetSourceAsync(stream);
+		}).then([tasks](task<void> t)
+		{
+			try
+			{
+				t.get();
+			}
+			catch (Exception^ e)
+			{
+				// We'll handle the specific errors below.
+			}
 		}));
 	}
 

ExportPage.xaml

@@ -43,11 +43,11 @@
                            Margin="0,8,0,0"
                                   />
                 <TextBlock TextWrapping="Wrap"
-                           Text="If for any reason you cannot access the rom folder or the rom is copied to the app's private storage, use this option to export save files to OneDrive."                                
+                           Text="If for any reason you cannot access the rom folder, e.g., the rom is stored in the app's private storage, use this option to export save files to OneDrive."                                
                                  Margin=" 0, 4, 0, 4" />
 
                 <TextBlock TextWrapping="Wrap"
-                           Text="This option is only useful on Windows 10 Mobile, which is not released yet, so it will be added later."                                
+                           Text="This feature will be added in a future release."                                
                                  Margin=" 0, 4, 0, 4" />
 
             </StackPanel>

ImportPage.xaml

@@ -40,7 +40,7 @@
                            Margin="0,8,0,0"
                                   />
                 <TextBlock TextWrapping="Wrap"
-                           Text="Use this option to import a file already present on your phone or PC. Note: due to a bug in Windows 10, you won't be able to see the content of the folder you are browsing."                                
+                           Text="Use this option to import a file already present on your phone or PC. Note: due to a bug in Windows 10, you won't be able to see the content of the folder you are browsing. Just select the folder containing the rom and will be presented with a list of rom to import."                                
                                  Margin=" 0, 4, 0, 4" />
 
                 <StackPanel Orientation="Horizontal">
@@ -63,11 +63,11 @@
                            Margin="0,8,0,0"
                                   />
                 <TextBlock TextWrapping="Wrap"
-                           Text="Use this option to import rom through the OneDrive app. The rom will be copied to the app's private storage."                                
+                           Text="Use this option to import rom through OneDrive. The rom will be copied to the app's private storage."                                
                                  Margin=" 0, 4, 0, 4" />
 
                 <TextBlock TextWrapping="Wrap"
-                           Text="This function is really only useful on Windows 10 Mobile, which is not released yet, so it will be added later."                                
+                           Text="This function will be added in a future release. In the mean time, please store roms on your phone's SD Card or documents folder and use the Local Storage option."                                
                                  Margin=" 0, 4, 0, 4" />
 
             </StackPanel>

ImportPage.xaml.cpp

@@ -164,7 +164,7 @@ void ImportPage::chooseFolderbtn_Click(Platform::Object^ sender, Windows::UI::Xa
 				auto transform = ((UIElement^)titleBar)->TransformToVisual(nullptr);
 
 				Windows::Foundation::Point point = transform->TransformPoint(Windows::Foundation::Point());
-				statePopup->HorizontalOffset = point.X; //+ selectStateBtn->ActualWidth / 2.0f - pane->Width / 2.0f;
+				statePopup->HorizontalOffset = point.X + 1; //+ selectStateBtn->ActualWidth / 2.0f - pane->Width / 2.0f;
 				statePopup->VerticalOffset = point.Y + titleBar->ActualHeight;
 
 				statePopup->IsOpen = true;

SelectFilePane.xaml

@@ -28,6 +28,11 @@
                        />
         </StackPanel>
 
+        <TextBlock x:Name="txtNoFile" Grid.Row="1"
+                   Text="No supported file found!" 
+                   Foreground="Red"
+                   Margin="8,8,0,8"/>
+
         <ListBox Name="fileList" 
             Background="Transparent" 
             SelectionChanged="fileList_SelectionChanged"

SelectFilePane.xaml.cpp

@@ -28,12 +28,23 @@ SelectFilePane::SelectFilePane(IVectorView<StorageFile^>^ list):initdone(false)
 	InitializeComponent();
 	this->fileVector = ref new Vector<StorageFile^>();
 
+
 	for (int i = 0; i < list->Size; i++)
 		this->fileVector->Append(list->GetAt(i));
-	
+
 	this->FileListvs->Source = this->fileVector;
 	this->fileList->SelectedItem = nullptr;
 
+	if (list->Size > 0)
+	{
+		this->fileList->Visibility = Windows::UI::Xaml::Visibility::Visible;
+		this->txtNoFile->Visibility = Windows::UI::Xaml::Visibility::Collapsed;
+	}
+	else
+	{
+		this->fileList->Visibility = Windows::UI::Xaml::Visibility::Collapsed;
+		this->txtNoFile->Visibility = Windows::UI::Xaml::Visibility::Visible;
+	}
 	initdone = true;
 }
 

SelectROMPane.xaml.cpp

@@ -491,7 +491,7 @@ void SelectROMPane::selectStateBtn_Click(Platform::Object^ sender, Windows::UI::
 	auto transform = ((UIElement^)topbar)->TransformToVisual(nullptr);
 
 	Windows::Foundation::Point point = transform->TransformPoint(Windows::Foundation::Point());
-	statePopup->HorizontalOffset = point.X; //+ selectStateBtn->ActualWidth / 2.0f - pane->Width / 2.0f;
+	statePopup->HorizontalOffset = point.X + 1; //+ selectStateBtn->ActualWidth / 2.0f - pane->Width / 2.0f;
 	statePopup->VerticalOffset = point.Y + selectStateBtn->ActualHeight; 
 
 	//statePopup->Measure(Windows::Foundation::Size(Window::Current->Bounds.Width, Window::Current->Bounds.Height));

SelectStatePane.xaml

@@ -192,7 +192,6 @@
     <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
         <Border BorderThickness="2,2,2,2" BorderBrush="{ThemeResource ListBoxBorderThemeBrush}">
             <ListBox Name="savestateList" 
-                     Background="Transparent" 
                      SelectionChanged="savestateList_SelectionChanged"
                       >
                 <ListBox.ItemTemplate>