Allow only a user gesture to trigger autofill popup

components/autofill/content/renderer/autofill_agent.cc

 // Copyright 2013 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 "components/autofill/content/renderer/autofill_agent.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_split.h"
@@ skipping 25 matching lines @@
 #include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebElementCollection.h"
 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 #include "third_party/WebKit/public/web/WebFormElement.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebNode.h"
 #include "third_party/WebKit/public/web/WebOptionElement.h"
 #include "third_party/WebKit/public/web/WebTextAreaElement.h"
+#include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 
 using blink::WebAutofillClient;
 using blink::WebConsoleMessage;
 using blink::WebDocument;
 using blink::WebElement;
 using blink::WebElementCollection;
 using blink::WebFormControlElement;
 using blink::WebFormElement;
 using blink::WebFrame;
 using blink::WebInputElement;
 using blink::WebKeyboardEvent;
 using blink::WebLocalFrame;
 using blink::WebNode;
 using blink::WebOptionElement;
 using blink::WebString;
 using blink::WebTextAreaElement;
+using blink::WebUserGestureIndicator;
 using blink::WebVector;
 
 namespace autofill {
 
 namespace {
 
 // Gets all the data list values (with corresponding label) for the given
 // element.
 void GetDataListSuggestions(const WebInputElement& element,
                             bool ignore_current_value,
@@ skipping 72 matching lines @@
       password_autofill_agent_(password_autofill_agent),
       password_generation_agent_(password_generation_agent),
       legacy_(render_frame->GetRenderView(), this),
       autofill_query_id_(0),
       display_warning_if_disabled_(false),
       was_query_node_autofilled_(false),
       has_shown_autofill_popup_for_current_edit_(false),
       did_set_node_text_(false),
       ignore_text_changes_(false),
       is_popup_possibly_visible_(false),
+      disable_user_gesture_check_(false),
       weak_ptr_factory_(this) {
   render_frame->GetWebFrame()->setAutofillClient(this);
 
   // This owns itself, and will delete itself when |render_frame| is destructed
   // (same as AutofillAgent).
   new PageClickTracker(render_frame, this);
 }
 
 AutofillAgent::~AutofillAgent() {}
 
@@ skipping 211 matching lines @@
 void AutofillAgent::textFieldDidEndEditing(const WebInputElement& element) {
   password_autofill_agent_->TextFieldDidEndEditing(element);
   has_shown_autofill_popup_for_current_edit_ = false;
   Send(new AutofillHostMsg_DidEndTextFieldEditing(routing_id()));
 }
 
 void AutofillAgent::textFieldDidChange(const WebFormControlElement& element) {
   if (ignore_text_changes_)
     return;
 
+  if (!WebUserGestureIndicator::isProcessingUserGesture() &&
+      !disable_user_gesture_check_) {
+    return;
+  }
+
   DCHECK(toWebInputElement(&element) || IsTextAreaElement(element));
 
   if (did_set_node_text_) {
     did_set_node_text_ = false;
     return;
   }
 
   // We post a task for doing the Autofill as the caret position is not set
   // properly at this point (http://bugs.webkit.org/show_bug.cgi?id=16976) and
   // it is needed to trigger autofill.
@@ skipping 427 matching lines @@
 
 void AutofillAgent::LegacyAutofillAgent::OnDestruct() {
   // No-op. Don't delete |this|.
 }
 
 void AutofillAgent::LegacyAutofillAgent::FocusChangeComplete() {
   agent_->FocusChangeComplete();
 }
 
 }  // namespace autofill