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// Copyright (c) 2012 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_BROWSER_AUTOFILL_AUTOFILL_EXTERNAL_DELEGATE_H_
#define CHROME_BROWSER_AUTOFILL_AUTOFILL_EXTERNAL_DELEGATE_H_
#pragma once
#include <vector>
#include "base/compiler_specific.h"
#include "base/string16.h"
#include "webkit/forms/form_data.h"
#include "webkit/forms/form_field.h"
class AutofillManager;
class TabContentsWrapper;
namespace gfx {
class Rect;
}
// TODO(csharp): A lot of the logic in this class is copied from autofillagent.
// Once Autofill is moved out of WebKit this class should be the only home for
// this logic. See http://crbug.com/51644
// Delegate for external processing of Autocomplete and Autofill
// display and selection.
class AutofillExternalDelegate {
public:
virtual ~AutofillExternalDelegate();
// When using an external Autofill delegate. Allows Chrome to tell
// WebKit which Autofill selection has been chosen.
// TODO(jrg): add feedback mechanism for hover on relevant platforms.
virtual void SelectAutofillSuggestionAtIndex(int unique_id, int list_index);
// Records and associates a query_id with web form data. Called
// when the renderer posts an Autofill query to the browser. |bounds|
// is window relative. |display_warning_if_disabled| tells us if we should
// display warnings (such as autofill is disabled, but had suggestions).
// We might not want to display the warning if a website has disabled
// Autocomplete because they have their own popup, and showing our popup
// on to of theirs would be a poor user experience.
virtual void OnQuery(int query_id,
const webkit::forms::FormData& form,
const webkit::forms::FormField& field,
const gfx::Rect& bounds,
bool display_warning_if_disabled);
// Records query results and correctly formats them before sending them off
// to be displayed. Called when an Autofill query result is available.
virtual void OnSuggestionsReturned(
int query_id,
const std::vector<string16>& autofill_values,
const std::vector<string16>& autofill_labels,
const std::vector<string16>& autofill_icons,
const std::vector<int>& autofill_unique_ids);
// Inform the delegate that the text field editing has ended, this is
// used to help record the metrics of when a new popup is shown.
void DidEndTextFieldEditing();
// Inform the delegate that an autofill suggestion have been chosen.
void DidAcceptAutofillSuggestions(const string16& value,
int unique_id,
unsigned index);
// Informs the delegate that the Autofill previewed form should be cleared.
virtual void ClearPreviewedForm();
// Hide the Autofill poup.
virtual void HideAutofillPopup();
// Platforms that wish to implement an external Autofill delegate
// MUST implement this. The 1st arg is the tab contents that owns
// this delegate; the second is the Autofill manager owned by the
// tab contents.
static AutofillExternalDelegate* Create(TabContentsWrapper*,
AutofillManager*);
protected:
explicit AutofillExternalDelegate(TabContentsWrapper* tab_contents_wrapper,
AutofillManager* autofill_manager);
// Displays the the Autofill results to the user with an external
// Autofill popup that lives completely in the browser. The suggestions
// have be correctly formatted by this point.
virtual void ApplyAutofillSuggestions(
const std::vector<string16>& autofill_values,
const std::vector<string16>& autofill_labels,
const std::vector<string16>& autofill_icons,
const std::vector<int>& autofill_unique_ids,
int separator_index) = 0;
// Handle instance specific OnQueryCode.
virtual void OnQueryPlatformSpecific(int query_id,
const webkit::forms::FormData& form,
const webkit::forms::FormField& field,
const gfx::Rect& bounds) = 0;
// Handle platform-dependent hiding.
virtual void HideAutofillPopupInternal() = 0;
private:
// Fills the form with the Autofill data corresponding to |unique_id|.
// If |is_preview| is true then this is just a preview to show the user what
// would be selected and if |is_preview| is false then the user has selected
// this data.
void FillAutofillFormData(int unique_id, bool is_preview);
TabContentsWrapper* tab_contents_wrapper_; // weak; owns me.
AutofillManager* autofill_manager_; // weak.
// The ID of the last request sent for form field Autofill. Used to ignore
// out of date responses.
int autofill_query_id_;
// The current form and field selected by Autofill.
webkit::forms::FormData autofill_query_form_;
webkit::forms::FormField autofill_query_field_;
// Should we display a warning if Autofill is disabled?
bool display_warning_if_disabled_;
// Have we already shown Autofill suggestions for the field the user is
// currently editing? Used to keep track of state for metrics logging.
bool has_shown_autofill_popup_for_current_edit_;
// 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_;
DISALLOW_COPY_AND_ASSIGN(AutofillExternalDelegate);
};
#endif // CHROME_BROWSER_AUTOFILL_AUTOFILL_EXTERNAL_DELEGATE_H_
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