Find should allow keyboard scrolling while Find bar has focus

webkit/glue/webview_impl.cc

 /*
 * Copyright 2007 Google Inc. All Rights Reserved.
 *
 * Portions Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
 *
 * ***** BEGIN LICENSE BLOCK *****
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
@@ skipping 1057 matching lines @@
 // TODO(darin): these navigation methods should be killed
 
 void WebViewImpl::StopLoading() {
   main_frame()->StopLoading();
 }
 
 void WebViewImpl::SetBackForwardListSize(int size) {
   page_->backForwardList()->setCapacity(size);
 }
 
+void WebViewImpl::ClearFocusedNode() {
+  // Get the last focused frame or the mainframe.
+  RefPtr<Frame> frame = last_focused_frame_;
+  if (!frame.get() && page_.get())
+    frame = page_->mainFrame();
+  if (!frame.get())
+    return;
+
+  RefPtr<Document> document = frame->document();
+  if (!document.get())
+    return;
+
+  RefPtr<Node> old_focused_node = document->focusedNode();
+
+  // Clear the focused node.
+  document->setFocusedNode(NULL);
+
+  if (!old_focused_node.get())
+    return;
+
+  // If a text field has focus, we need to make sure the selection controller
+  // knows to remove selection from it. Otherwise, the text field is still
+  // processing keyboard events even though focus has been moved to the page and
+  // keystrokes get eaten as a result.
+  if (old_focused_node->hasTagName(HTMLNames::textareaTag) ||
+      (old_focused_node->hasTagName(HTMLNames::inputTag) &&
+       static_cast<HTMLInputElement*>(old_focused_node.get())->isTextField())) {
+    // Clear the selection.
+    SelectionController* selection = frame->selection();
+    selection->clear();
+  }
+}
+
 void WebViewImpl::SetFocus(bool enable) {
   if (enable) {
     // Getting the focused frame will have the side-effect of setting the main
     // frame as the focused frame if it is not already focused.  Otherwise, if
     // there is already a focused frame, then this does nothing.
     GetFocusedFrame();
     if (page_.get() && page_->mainFrame()) {
       Frame* frame = page_->mainFrame();
       if (!frame->selection()->isFocusedAndActive()) {
         // No one has focus yet, try to restore focus.
@@ skipping 789 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);
 }