Allow opening files/projects by drag+drop onto the start page.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@3280 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/StartPage/Project/Src/StartPage.cs

@@ -5,6 +5,7 @@
 //     <version>$Revision$</version>
 // </file>
 
+using ICSharpCode.SharpDevelop;
 using System;
 using System.Windows.Forms;
 using ICSharpCode.Core;
@@ -45,6 +46,34 @@ namespace ICSharpCode.StartPage
 			if (btn != null) {
 				btn.Click += delegate {new ICSharpCode.SharpDevelop.Project.Commands.CreateNewSolution().Run();};
 			}
+			
+			pane.WebBrowser.Navigating += pane_WebBrowser_Navigating;
+			pane.WebBrowser.Navigated += pane_WebBrowser_Navigated;
+		}
+
+		void pane_WebBrowser_Navigated(object sender, WebBrowserNavigatedEventArgs e)
+		{
+			WebBrowser webBrowser = (WebBrowser)sender;
+			webBrowser.Navigating -= pane_WebBrowser_Navigating;
+			webBrowser.Navigated -= pane_WebBrowser_Navigated;
+		}
+
+		void pane_WebBrowser_Navigating(object sender, WebBrowserNavigatingEventArgs e)
+		{
+			try {
+				if (e.Url.IsFile) {
+					e.Cancel = true;
+					string file = e.Url.LocalPath;
+					IProjectLoader loader = ProjectService.GetProjectLoader(file);
+					if (loader != null) {
+						FileUtility.ObservedLoad(new NamedFileOperationDelegate(loader.Load), file);
+					} else {
+						FileService.OpenFile(file);
+					}
+				}
+			} catch (Exception ex) {
+				MessageService.ShowError(ex);
+			}
 		}
 		
 		public override void GoHome(HtmlViewPane pane)

src/Main/Base/Project/Src/Gui/Workbench/DefaultWorkbench.cs

@@ -639,6 +639,7 @@ namespace ICSharpCode.SharpDevelop.Gui
 		
 		protected override void OnDragEnter(DragEventArgs e)
 		{
+			try {
 				base.OnDragEnter(e);
 				if (e.Data != null && e.Data.GetDataPresent(DataFormats.FileDrop)) {
 					string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
@@ -650,10 +651,14 @@ namespace ICSharpCode.SharpDevelop.Gui
 					}
 				}
 				e.Effect = DragDropEffects.None;
+			} catch (Exception ex) {
+				MessageService.ShowError(ex);
+			}
 		}
 		
 		protected override void OnDragDrop(DragEventArgs e)
 		{
+			try {
 				base.OnDragDrop(e);
 				if (e.Data != null && e.Data.GetDataPresent(DataFormats.FileDrop)) {
 					string[] files = (string[])e.Data.GetData(DataFormats.FileDrop);
@@ -669,6 +674,9 @@ namespace ICSharpCode.SharpDevelop.Gui
 						}
 					}
 				}
+			} catch (Exception ex) {
+				MessageService.ShowError(ex);
+			}
 		}
 		
 		void OnViewOpened(ViewContentEventArgs e)