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// 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.
#ifndef COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
#define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
#include <map>
#include <vector>
#include "base/memory/linked_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/autofill/core/common/password_form_fill_data.h"
#include "content/public/renderer/render_view_observer.h"
#include "third_party/WebKit/public/web/WebInputElement.h"
namespace WebKit {
class WebInputElement;
class WebKeyboardEvent;
class WebView;
}
namespace autofill {
// This class is responsible for filling password forms.
// There is one PasswordAutofillAgent per RenderView.
class PasswordAutofillAgent : public content::RenderViewObserver {
public:
explicit PasswordAutofillAgent(content::RenderView* render_view);
virtual ~PasswordAutofillAgent();
// WebViewClient editor related calls forwarded by the RenderView.
// If they return true, it indicates the event was consumed and should not
// be used for any other autofill activity.
bool TextFieldDidEndEditing(const WebKit::WebInputElement& element);
bool TextDidChangeInTextField(const WebKit::WebInputElement& element);
bool TextFieldHandlingKeyDown(const WebKit::WebInputElement& element,
const WebKit::WebKeyboardEvent& event);
// Fills the password associated with user name |value|. Returns true if the
// username and password fields were filled, false otherwise.
bool DidAcceptAutofillSuggestion(const WebKit::WebNode& node,
const WebKit::WebString& value);
// A no-op. Password forms are not previewed, so they do not need to be
// cleared when the selection changes. However, this method returns
// true when |node| is fillable by password Autofill.
bool DidClearAutofillSelection(const WebKit::WebNode& node);
// Shows an Autofill popup with username suggestions for |element|.
// Returns true if any suggestions were shown, false otherwise.
bool ShowSuggestions(const WebKit::WebInputElement& element);
private:
friend class PasswordAutofillAgentTest;
enum OtherPossibleUsernamesUsage {
NOTHING_TO_AUTOFILL,
OTHER_POSSIBLE_USERNAMES_ABSENT,
OTHER_POSSIBLE_USERNAMES_PRESENT,
OTHER_POSSIBLE_USERNAME_SHOWN,
OTHER_POSSIBLE_USERNAME_SELECTED,
OTHER_POSSIBLE_USERNAMES_MAX
};
struct PasswordInfo {
WebKit::WebInputElement password_field;
PasswordFormFillData fill_data;
bool backspace_pressed_last;
PasswordInfo() : backspace_pressed_last(false) {}
};
typedef std::map<WebKit::WebElement, PasswordInfo> LoginToPasswordInfoMap;
typedef std::map<WebKit::WebFrame*,
linked_ptr<content::PasswordForm> > FrameToPasswordFormMap;
// RenderViewObserver:
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
virtual void DidStartProvisionalLoad(WebKit::WebFrame* frame) OVERRIDE;
virtual void DidStartLoading() OVERRIDE;
virtual void DidFinishDocumentLoad(WebKit::WebFrame* frame) OVERRIDE;
virtual void DidFinishLoad(WebKit::WebFrame* frame) OVERRIDE;
virtual void FrameDetached(WebKit::WebFrame* frame) OVERRIDE;
virtual void FrameWillClose(WebKit::WebFrame* frame) OVERRIDE;
virtual void WillSendSubmitEvent(WebKit::WebFrame* frame,
const WebKit::WebFormElement& form) OVERRIDE;
virtual void WillSubmitForm(WebKit::WebFrame* frame,
const WebKit::WebFormElement& form) OVERRIDE;
// RenderView IPC handlers:
void OnFillPasswordForm(const PasswordFormFillData& form_data);
// Scans the given frame for password forms and sends them up to the browser.
// If |only_visible| is true, only forms visible in the layout are sent.
void SendPasswordForms(WebKit::WebFrame* frame, bool only_visible);
void GetSuggestions(const PasswordFormFillData& fill_data,
const base::string16& input,
std::vector<base::string16>* suggestions,
std::vector<base::string16>* realms);
bool ShowSuggestionPopup(const PasswordFormFillData& fill_data,
const WebKit::WebInputElement& user_input);
bool FillUserNameAndPassword(
WebKit::WebInputElement* username_element,
WebKit::WebInputElement* password_element,
const PasswordFormFillData& fill_data,
bool exact_username_match,
bool set_selection);
// Fills |login_input| and |password| with the most relevant suggestion from
// |fill_data| and shows a popup with other suggestions.
void PerformInlineAutocomplete(
const WebKit::WebInputElement& username,
const WebKit::WebInputElement& password,
const PasswordFormFillData& fill_data);
// Invoked when the passed frame is closing. Gives us a chance to clear any
// reference we may have to elements in that frame.
void FrameClosing(const WebKit::WebFrame* frame);
// Finds login information for a |node| that was previously filled.
bool FindLoginInfo(const WebKit::WebNode& node,
WebKit::WebInputElement* found_input,
PasswordInfo* found_password);
// The logins we have filled so far with their associated info.
LoginToPasswordInfoMap login_to_password_info_;
// Used for UMA stats.
OtherPossibleUsernamesUsage usernames_usage_;
// Pointer to the WebView. Used to access page scale factor.
WebKit::WebView* web_view_;
// Set if the user might be submitting a password form on the current page,
// but the submit may still fail (i.e. doesn't pass JavaScript validation).
FrameToPasswordFormMap provisionally_saved_forms_;
base::WeakPtrFactory<PasswordAutofillAgent> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(PasswordAutofillAgent);
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
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