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// Copyright (c) 2010 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_HELPER_H_
#define CHROME_RENDERER_AUTOFILL_HELPER_H_
#pragma once
#include <vector>
#include "base/basictypes.h"
#include "chrome/renderer/form_manager.h"
#include "chrome/renderer/page_click_listener.h"
#include "third_party/WebKit/WebKit/chromium/public/WebNode.h"
class RenderView;
namespace WebKit {
class WebInputElement;
class WebString;
}
// AutoFillHelper deals with AutoFill related communications between WebKit and
// the browser. There is one AutofillHelper per RenderView.
// This code was originally part of RenderView.
// Note that AutoFill encompasses:
// - single text field suggestions, that we usually refer to as Autocomplete
// - entire form fill based on one field entry, referred to as form AutoFill.
class AutoFillHelper : public PageClickListener {
public:
explicit AutoFillHelper(RenderView* render_view);
// Queries the browser for Autocomplete and AutoFill suggestions for the given
// |node|.
void QueryAutoFillSuggestions(const WebKit::WebNode& node);
// Removes the Autocomplete suggestion |value| for the field named |name|.
void RemoveAutocompleteSuggestion(const WebKit::WebString& name,
const WebKit::WebString& value);
// Called when we have received AutoFill suggestions from the browser.
void SuggestionsReceived(int query_id,
const std::vector<string16>& values,
const std::vector<string16>& labels,
const std::vector<string16>& icons,
const std::vector<int>& unique_ids);
// Called when we have received suggestions for an entire form from the
// browser.
void FormDataFilled(int query_id, const webkit_glue::FormData& form);
// Called by Webkit when the user has selected a suggestion in the popup (this
// happens when the user hovers over an suggestion or navigates the popup with
// the arrow keys).
void DidSelectAutoFillSuggestion(const WebKit::WebNode& node,
int unique_id);
// Called by Webkit when the user has accepted a suggestion in the popup.
void DidAcceptAutoFillSuggestion(const WebKit::WebNode& node,
const WebKit::WebString& value,
int unique_id,
unsigned index);
// Called by WebKit when the user has cleared the selection from the AutoFill
// suggestions popup. This happens when a user uses the arrow keys to
// navigate outside the range of possible selections, or when the popup
// closes.
void DidClearAutoFillSelection(const WebKit::WebNode& node);
// Called when the frame contents are available. Extracts the forms from that
// frame and sends them to the browser for parsing.
void FrameContentsAvailable(WebKit::WebFrame* frame);
// Called before a frame is closed. Gives us an opportunity to clean up.
// DEPRECATED.
void FrameWillClose(WebKit::WebFrame* frame);
// Called when |frame| is detached from the view. Gives us an opportunity to
// clean up.
void FrameDetached(WebKit::WebFrame* frame);
// WebViewClient editor call forwarded by the RenderView.
void TextDidChangeInTextField(const WebKit::WebInputElement& element);
// Called when an input element in the page has been clicked.
// |already_focused| is true if |element| was focused before it was clicked.
void InputElementClicked(const WebKit::WebInputElement& element,
bool already_focused);
private:
enum AutoFillAction {
AUTOFILL_NONE, // No state set.
AUTOFILL_FILL, // Fill the AutoFill form data.
AUTOFILL_PREVIEW, // Preview the AutoFill form data.
};
// PageClickListener implementation:
virtual bool InputElementClicked(const WebKit::WebInputElement& element,
bool was_focused,
bool is_focused);
// Shows the autocomplete 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|.
void ShowSuggestions(const WebKit::WebInputElement& element,
bool autofill_on_empty_values,
bool requires_caret_at_end);
// 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 QueryAutoFillFormData(const WebKit::WebNode& node,
int unique_id,
AutoFillAction action);
// Scans the given frame for forms and sends them up to the browser.
void SendForms(WebKit::WebFrame* frame);
// Weak reference.
RenderView* render_view_;
FormManager form_manager_;
// The ID of the last request sent for form field AutoFill. Used to ignore
// out of date responses.
int autofill_query_id_;
// The node corresponding to the last request sent for form field AutoFill.
WebKit::WebNode autofill_query_node_;
// The action to take when receiving AutoFill data from the AutoFillManager.
AutoFillAction autofill_action_;
// 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(AutoFillHelper);
};
#endif // CHROME_RENDERER_AUTOFILL_HELPER_H_
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