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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_GENERATION_AGENT_H_
#define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
#include <map>
#include <utility>
#include <vector>
#include "base/memory/linked_ptr.h"
#include "base/memory/scoped_ptr.h"
#include "content/public/renderer/render_frame_observer.h"
#include "third_party/WebKit/public/web/WebInputElement.h"
#include "url/gurl.h"
namespace blink {
class WebDocument;
}
namespace autofill {
struct FormData;
struct PasswordForm;
// This class is responsible for controlling communication for password
// generation between the browser (which shows the popup and generates
// passwords) and WebKit (shows the generation icon in the password field).
class PasswordGenerationAgent : public content::RenderFrameObserver {
public:
explicit PasswordGenerationAgent(content::RenderFrame* render_frame);
~PasswordGenerationAgent() override;
// Returns true if the field being changed is one where a generated password
// is being offered. Updates the state of the popup if necessary.
bool TextDidChangeInTextField(const blink::WebInputElement& element);
// Returns true if the newly focused node caused the generation UI to show.
bool FocusedNodeHasChanged(const blink::WebNode& node);
// Called when new form controls are inserted.
void OnDynamicFormsSeen();
// The length that a password can be before the UI is hidden.
static const size_t kMaximumOfferSize = 5;
protected:
// Returns true if the document for |render_frame()| is one that we should
// consider analyzing. Virtual so that it can be overriden during testing.
virtual bool ShouldAnalyzeDocument() const;
// RenderViewObserver:
bool OnMessageReceived(const IPC::Message& message) override;
// Use to force enable during testing.
void set_enabled(bool enabled) { enabled_ = enabled; }
private:
struct AccountCreationFormData {
linked_ptr<PasswordForm> form;
std::vector<blink::WebInputElement> password_elements;
AccountCreationFormData(
linked_ptr<PasswordForm> form,
std::vector<blink::WebInputElement> password_elements);
~AccountCreationFormData();
};
typedef std::vector<AccountCreationFormData> AccountCreationFormDataList;
// RenderFrameObserver:
void DidFinishDocumentLoad() override;
void DidFinishLoad() override;
// Message handlers.
void OnFormNotBlacklisted(const PasswordForm& form);
void OnPasswordAccepted(const base::string16& password);
void OnAccountCreationFormsDetected(
const std::vector<autofill::FormData>& forms);
// Helper function that will try and populate |password_elements_| and
// |possible_account_creation_form_|.
void FindPossibleGenerationForm();
// Helper function to decide if |passwords_| contains password fields for
// an account creation form. Sets |generation_element_| to the field that
// we want to trigger the generation UI on.
void DetermineGenerationElement();
// Show password generation UI anchored at |generation_element_|.
void ShowGenerationPopup();
// Show UI for editing a generated password at |generation_element_|.
void ShowEditingPopup();
// Hides a password generation popup if one exists.
void HidePopup();
// Stores forms that are candidates for account creation.
AccountCreationFormDataList possible_account_creation_forms_;
// Stores the origins of the password forms confirmed not to be blacklisted
// by the browser. A form can be blacklisted if a user chooses "never save
// passwords for this site".
std::vector<GURL> not_blacklisted_password_form_origins_;
// Stores each password form for which the Autofill server classifies one of
// the form's fields as an ACCOUNT_CREATION_PASSWORD. These forms will
// not be sent if the feature is disabled.
std::vector<autofill::FormData> generation_enabled_forms_;
// Data for form which generation is allowed on.
scoped_ptr<AccountCreationFormData> generation_form_data_;
// Element where we want to trigger password generation UI.
blink::WebInputElement generation_element_;
// If the password field at |generation_element_| contains a generated
// password.
bool password_is_generated_;
// True if a password was generated and the user edited it. Used for UMA
// stats.
bool password_edited_;
// True if the generation popup was shown during this navigation. Used to
// track UMA stats per page visit rather than per display, since the former
// is more interesting.
bool generation_popup_shown_;
// True if the editing popup was shown during this navigation. Used to track
// UMA stats per page rather than per display, since the former is more
// interesting.
bool editing_popup_shown_;
// If this feature is enabled. Controlled by Finch.
bool enabled_;
DISALLOW_COPY_AND_ASSIGN(PasswordGenerationAgent);
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
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