When middle clicking a link in Linux, an onpaste event is fired. Prevent...

webkit/glue/webview_impl.cc

 // Copyright (c) 2007-2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "build/build_config.h"
 
 #include "base/compiler_specific.h"
 MSVC_PUSH_WARNING_LEVEL(0);
 #include "CSSStyleSelector.h"
@@ skipping 546 matching lines @@
   // crbug.com/14608. Pages can clear text boxes 'onclick' and, if we paste on
   // down then the text is pasted just before the onclick handler runs and
   // clears the text box. So it's important this happens after the
   // handleMouseReleaseEvent() earlier in this function
   if (event.button == WebMouseEvent::ButtonMiddle) {
     Frame* focused = GetFocusedWebCoreFrame();
     IntPoint click_point(last_mouse_down_point_.x, last_mouse_down_point_.y);
     HitTestResult hit_test_result =
       focused->eventHandler()->hitTestResultAtPoint(click_point, false, false,
                                                     ShouldHitTestScrollbars);
-    if (!hit_test_result.scrollbar() && focused) {
+    // We don't want to send a paste when middle clicking a scroll bar or a
+    // link (which will navigate later in the code).
+    if (!hit_test_result.scrollbar() && !hit_test_result.isLiveLink() &&
+        focused) {
       Editor* editor = focused->editor();
       Pasteboard* pasteboard = Pasteboard::generalPasteboard();
       bool oldSelectionMode = pasteboard->isSelectionMode();
       pasteboard->setSelectionMode(true);
       editor->command(AtomicString("Paste")).execute();
       pasteboard->setSelectionMode(oldSelectionMode);
     }
   }
 #endif
 
@@ skipping 1325 matching lines @@
   return spelling_panel_is_visible_;
 }
 
 void WebViewImpl::setTabsToLinks(bool enable) {
   tabs_to_links_ = enable;
 }
 
 bool WebViewImpl::tabsToLinks() const {
   return tabs_to_links_;
 }