Merge pull request #33 from Doflatango/fix/scrolling

调整滚动行为和滚动增量

common/webview_handler.cc

@@ -154,7 +154,17 @@ void WebviewHandler::sendScrollEvent(int x, int y, int deltaX, int deltaY) {
         CefMouseEvent ev;
         ev.x = x;
         ev.y = y;
+
+#ifndef __APPLE__
+        // The scrolling direction on Windows and Linux is different from MacOS
+        deltaY = -deltaY;
+        // Flutter scrolls too slowly, it looks more normal by 10x default speed.
+        (*it)->GetHost()->SendMouseWheelEvent(ev, deltaX * 10, deltaY * 10);
+#else
         (*it)->GetHost()->SendMouseWheelEvent(ev, deltaX, deltaY);
+#endif
+
+
     }
 }