Manually removing downloads needs to trigger checking the button enabled status

in the download window.

git-svn-id: http://svn.haiku-os.org/webpositive/webkit/trunk@354 94f232f2-1747-11df-bad5-a5bfde151594

src/apps/webpositive/DownloadWindow.cpp

@@ -250,6 +250,7 @@ DownloadWindow::MessageReceived(BMessage* message)
 			_RemoveMissingDownloads();
 			break;
 		case SAVE_SETTINGS:
+			_ValidateButtonStatus();
 			_SaveSettings();
 			break;
 
@@ -390,6 +391,27 @@ DownloadWindow::_RemoveMissingDownloads()
 }
 
 
+void
+DownloadWindow::_ValidateButtonStatus()
+{
+	int32 finishedCount = 0;
+	int32 missingCount = 0;
+	for (int32 i = fDownloadViewsLayout->CountItems() - 1;
+			BLayoutItem* item = fDownloadViewsLayout->ItemAt(i); i--) {
+		DownloadProgressView* view = dynamic_cast<DownloadProgressView*>(
+			item->View());
+		if (!view)
+			continue;
+		if (view->IsFinished())
+			finishedCount++;
+		if (view->IsMissing())
+			missingCount++;
+	}
+	fRemoveFinishedButton->SetEnabled(finishedCount > 0);
+	fRemoveMissingButton->SetEnabled(missingCount > 0);
+}
+
+
 void
 DownloadWindow::_SaveSettings()
 {

src/apps/webpositive/DownloadWindow.h

@@ -52,6 +52,7 @@ private:
 			void				_DownloadFinished(BWebDownload* download);
 			void				_RemoveFinishedDownloads();
 			void				_RemoveMissingDownloads();
+			void				_ValidateButtonStatus();
 			void				_SaveSettings();
 			void				_LoadSettings();
 			bool				_OpenSettingsFile(BFile& file, uint32 mode);