Change the ChromiumPasteboard to have a notion of an alternate clipboard...

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 17 matching lines @@
 #include "HitTestResult.h"
 #include "Image.h"
 #include "InspectorController.h"
 #include "IntRect.h"
 #include "KeyboardCodes.h"
 #include "KeyboardEvent.h"
 #include "MIMETypeRegistry.h"
 #include "NodeRenderStyle.h"
 #include "Page.h"
 #include "PageGroup.h"
+#include "Pasteboard.h"
 #include "PlatformContextSkia.h"
 #include "PlatformKeyboardEvent.h"
 #include "PlatformMouseEvent.h"
 #include "PlatformWheelEvent.h"
 #include "PluginInfoStore.h"
 #include "PopupMenuChromium.h"
 #include "PopupMenuClient.h"
 #if defined(OS_WIN)
 #include "RenderThemeChromiumWin.h"
 #elif defined(OS_LINUX)
@@ skipping 509 matching lines @@
   // 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) {
       Editor* editor = focused->editor();
-      if (editor && editor->canEdit())
-        delegate_->PasteFromSelectionClipboard();
+      Pasteboard* pasteboard = Pasteboard::generalPasteboard();
+      bool oldSelectionMode = pasteboard->isSelectionMode();
+      pasteboard->setSelectionMode(true);
+      editor->command(AtomicString("Paste")).execute();
+      pasteboard->setSelectionMode(oldSelectionMode);
     }
   }
 #endif
 
   mouseCaptureLost();
   main_frame()->frame()->eventHandler()->handleMouseReleaseEvent(
       PlatformMouseEventBuilder(main_frame()->frameview(), event));
 
 #if defined(OS_WIN)
   // Dispatch the contextmenu event regardless of if the click was swallowed.
@@ skipping 1344 matching lines @@
 
   return document->focusedNode();
 }
 
 HitTestResult WebViewImpl::HitTestResultForWindowPos(const IntPoint& pos) {
   IntPoint doc_point(
       page_->mainFrame()->view()->windowToContents(pos));
   return page_->mainFrame()->eventHandler()->
       hitTestResultAtPoint(doc_point, false);
 }