[Autofill] Send events to fields being autofilled.

third_party/WebKit/Source/web/WebFormControlElement.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 79 matching lines @@
 void WebFormControlElement::setValue(const WebString& value, bool sendEvents)
 {
     if (isHTMLInputElement(*m_private))
         unwrap<HTMLInputElement>()->setValue(value, sendEvents ? DispatchInputAndChangeEvent : DispatchNoEvent);
     else if (isHTMLTextAreaElement(*m_private))
         unwrap<HTMLTextAreaElement>()->setValue(value, sendEvents ? DispatchInputAndChangeEvent : DispatchNoEvent);
     else if (isHTMLSelectElement(*m_private))
         unwrap<HTMLSelectElement>()->setValue(value, sendEvents);
 }
 
+void WebFormControlElement::setAutofillValue(const WebString& value)
+{
+    // The input and change events will be sent in setValue.
+    if (isHTMLInputElement(*m_private)) {

[tkent, 2016/05/09 01:54:21]

- You can unify HTMLInputElement path and HTMLTextAreaElement path.
- dispatchFocusEvent and dispatchBlurEvent are public on Element

if (isHTMLTextFormControlElement(*m_private) {
    unwrap<Element>()->dispatchFocusEvent(...);
    dispatchKeyDownEvent();
    unwrap<HTMLTextFormControlElement>()->setValue(...);
    dispatchKeyUpEvent();
    unwrap<Element>()->dispatchBlurEvent(...);
} else if (isHTMLSelectElement(*m_private)) ...

[sebsg, 2016/05/09 22:19:11]

Nice! I merged the calls but kept the if more restrictive to only fill inputs
and textarea fields like before. Thanks!

+        unwrap<HTMLInputElement>()->dispatchFocusEvent(nullptr, WebFocusTypeForward, nullptr);
+        unwrap<HTMLInputElement>()->dispatchKeyDownEvent();
+        unwrap<HTMLInputElement>()->setValue(value, DispatchInputAndChangeEvent);
+        unwrap<HTMLInputElement>()->dispatchKeyUpEvent();
+        unwrap<HTMLInputElement>()->dispatchBlurEvent(nullptr, WebFocusTypeForward, nullptr);
+    } else if (isHTMLTextAreaElement(*m_private)) {
+        unwrap<HTMLTextAreaElement>()->dispatchFocusEvent(nullptr, WebFocusTypeForward, nullptr);
+        unwrap<HTMLTextAreaElement>()->dispatchKeyDownEvent();
+        unwrap<HTMLTextAreaElement>()->setValue(value, DispatchInputAndChangeEvent);
+        unwrap<HTMLTextAreaElement>()->dispatchKeyUpEvent();
+        unwrap<HTMLTextAreaElement>()->dispatchBlurEvent(nullptr, WebFocusTypeForward, nullptr);
+    } else if (isHTMLSelectElement(*m_private)) {
+        unwrap<HTMLSelectElement>()->dispatchFocusEvent(nullptr, WebFocusTypeForward, nullptr);
+        unwrap<HTMLSelectElement>()->setValue(value, true);
+        unwrap<HTMLSelectElement>()->dispatchBlurEvent(nullptr, WebFocusTypeForward, nullptr);
+    }
+}
+
 WebString WebFormControlElement::value() const
 {
     if (isHTMLInputElement(*m_private))
         return constUnwrap<HTMLInputElement>()->value();
     if (isHTMLTextAreaElement(*m_private))
         return constUnwrap<HTMLTextAreaElement>()->value();
     if (isHTMLSelectElement(*m_private))
         return constUnwrap<HTMLSelectElement>()->value();
     return WebString();
 }
@@ skipping 78 matching lines @@
     m_private = elem;
     return *this;
 }
 
 WebFormControlElement::operator HTMLFormControlElement*() const
 {
     return toHTMLFormControlElement(m_private.get());
 }
 
 } // namespace blink