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// Copyright (c) 2011 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.
#ifndef CHROME_RENDERER_AUTOFILL_AUTOFILL_AGENT_H_
#define CHROME_RENDERER_AUTOFILL_AUTOFILL_AGENT_H_
#pragma once
#include <vector>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/task.h"
#include "chrome/renderer/autofill/form_manager.h"
#include "chrome/renderer/page_click_listener.h"
#include "content/renderer/render_view_observer.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebAutofillClient.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputElement.h"
#include "webkit/glue/form_data.h"
#include "webkit/glue/form_field.h"
namespace webkit_glue {
struct FormDataPredictions;
}
namespace autofill {
class PasswordAutofillManager;
// AutofillAgent deals with Autofill related communications between WebKit and
// the browser. There is one AutofillAgent per RenderView.
// This code was originally part of RenderView.
// Note that Autofill encompasses:
// - single text field suggestions, that we usually refer to as Autocomplete,
// - password form fill, refered to as password Autofill, and
// - entire form fill based on one field entry, referred to as form Autofill.
class AutofillAgent : public RenderViewObserver,
public PageClickListener,
public WebKit::WebAutofillClient {
public:
// PasswordAutofillManager is guaranteed to outlive AutofillAgent.
AutofillAgent(RenderView* render_view,
PasswordAutofillManager* password_autofill_manager);
virtual ~AutofillAgent();
// Called when the translate helper has finished translating the page. We
// use this signal to re-scan the page for forms.
void FrameTranslated(WebKit::WebFrame* frame);
// WebKit::WebAutofillClient implementation. Public for tests.
virtual void didAcceptAutofillSuggestion(const WebKit::WebNode& node,
const WebKit::WebString& value,
const WebKit::WebString& label,
int unique_id,
unsigned index);
virtual void didSelectAutofillSuggestion(const WebKit::WebNode& node,
const WebKit::WebString& value,
const WebKit::WebString& label,
int unique_id);
virtual void didClearAutofillSelection(const WebKit::WebNode& node);
virtual void removeAutocompleteSuggestion(const WebKit::WebString& name,
const WebKit::WebString& value);
virtual void textFieldDidEndEditing(const WebKit::WebInputElement& element);
virtual void textFieldDidChange(const WebKit::WebInputElement& element);
virtual void textFieldDidReceiveKeyDown(
const WebKit::WebInputElement& element,
const WebKit::WebKeyboardEvent& event);
private:
enum AutofillAction {
AUTOFILL_NONE, // No state set.
AUTOFILL_FILL, // Fill the Autofill form data.
AUTOFILL_PREVIEW, // Preview the Autofill form data.
};
// RenderView::Observer implementation.
virtual bool OnMessageReceived(const IPC::Message& message);
virtual void DidFinishDocumentLoad(WebKit::WebFrame* frame);
virtual void FrameDetached(WebKit::WebFrame* frame);
virtual void FrameWillClose(WebKit::WebFrame* frame);
virtual void WillSubmitForm(WebKit::WebFrame* frame,
const WebKit::WebFormElement& form);
// PageClickListener implementation:
virtual bool InputElementClicked(const WebKit::WebInputElement& element,
bool was_focused,
bool is_focused);
void OnSuggestionsReturned(int query_id,
const std::vector<string16>& values,
const std::vector<string16>& labels,
const std::vector<string16>& icons,
const std::vector<int>& unique_ids);
void OnFormDataFilled(int query_id, const webkit_glue::FormData& form);
void OnFieldTypePredictionsAvailable(
const std::vector<webkit_glue::FormDataPredictions>& forms);
// Called in a posted task by textFieldDidChange() to work-around a WebKit bug
// http://bugs.webkit.org/show_bug.cgi?id=16976
void TextFieldDidChangeImpl(const WebKit::WebInputElement& element);
// Shows the autofill suggestions for |element|.
// This call is asynchronous and may or may not lead to the showing of a
// suggestion popup (no popup is shown if there are no available suggestions).
// |autofill_on_empty_values| specifies whether suggestions should be shown
// when |element| contains no text.
// |requires_caret_at_end| specifies whether suggestions should be shown when
// the caret is not after the last character in |element|.
// |display_warning_if_disabled| specifies whether a warning should be
// displayed to the user if Autofill has suggestions available, but cannot
// fill them because it is disabled (e.g. when trying to fill a credit card
// form on a non-secure website).
void ShowSuggestions(const WebKit::WebInputElement& element,
bool autofill_on_empty_values,
bool requires_caret_at_end,
bool display_warning_if_disabled);
// Queries the browser for Autocomplete and Autofill suggestions for the given
// |element|.
void QueryAutofillSuggestions(const WebKit::WebInputElement& element,
bool display_warning_if_disabled);
// Queries the AutofillManager for form data for the form containing |node|.
// |value| is the current text in the field, and |unique_id| is the selected
// profile's unique ID. |action| specifies whether to Fill or Preview the
// values returned from the AutofillManager.
void FillAutofillFormData(const WebKit::WebNode& node,
int unique_id,
AutofillAction action);
// Fills |form| and |field| with the FormData and FormField corresponding to
// |node|. Returns true if the data was found; and false otherwise.
bool FindFormAndFieldForNode(
const WebKit::WebNode& node,
webkit_glue::FormData* form,
webkit_glue::FormField* field) WARN_UNUSED_RESULT;
FormManager form_manager_;
PasswordAutofillManager* password_autofill_manager_;
// The ID of the last request sent for form field Autofill. Used to ignore
// out of date responses.
int autofill_query_id_;
// The element corresponding to the last request sent for form field Autofill.
WebKit::WebInputElement autofill_query_element_;
// The action to take when receiving Autofill data from the AutofillManager.
AutofillAction autofill_action_;
// Should we display a warning if autofill is disabled?
bool display_warning_if_disabled_;
// Was the query node autofilled prior to previewing the form?
bool was_query_node_autofilled_;
// The menu index of the "Clear" menu item.
int suggestions_clear_index_;
// The menu index of the "Autofill options..." menu item.
int suggestions_options_index_;
ScopedRunnableMethodFactory<AutofillAgent> method_factory_;
DISALLOW_COPY_AND_ASSIGN(AutofillAgent);
};
} // namespace autofill
#endif // CHROME_RENDERER_AUTOFILL_AUTOFILL_AGENT_H_