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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 CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_CONTROLLER_H_
#define CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_CONTROLLER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/strings/string16.h"
#include "chrome/browser/autocomplete/autocomplete_controller.h"
#include "chrome/browser/autocomplete/autocomplete_controller_delegate.h"
#include "chrome/browser/autocomplete/autocomplete_match.h"
struct AutocompleteMatch;
class AutocompleteResult;
class GURL;
class InstantController;
struct InstantSuggestion;
class OmniboxEditModel;
class OmniboxPopupModel;
class Profile;
namespace gfx {
class Rect;
}
// This class controls the various services that can modify the content
// for the omnibox, including AutocompleteController and InstantController. It
// is responsible of updating the omnibox content.
// TODO(beaudoin): Keep on expanding this class so that OmniboxEditModel no
// longer needs to hold any reference to AutocompleteController. Also make
// this the point of contact between InstantController and OmniboxEditModel.
// As the refactor progresses, keep the class comment up-to-date to
// precisely explain what this class is doing.
class OmniboxController : public AutocompleteControllerDelegate {
public:
OmniboxController(OmniboxEditModel* omnibox_edit_model,
Profile* profile);
virtual ~OmniboxController();
// |current_url| is only set for mobile ports.
void StartAutocomplete(string16 user_text,
size_t cursor_position,
const GURL& current_url,
bool prevent_inline_autocomplete,
bool prefer_keyword,
bool allow_exact_keyword_match,
int omnibox_start_margin) const;
// AutocompleteControllerDelegate:
virtual void OnResultChanged(bool default_match_changed) OVERRIDE;
AutocompleteController* autocomplete_controller() {
return autocomplete_controller_.get();
}
bool DoInstant(const AutocompleteMatch& match,
string16 user_text,
string16 full_text,
size_t selection_start,
size_t selection_end,
bool user_input_in_progress,
bool in_escape_handler,
bool just_deleted_text,
bool keyword_is_selected);
// Sets the suggestion text.
void SetInstantSuggestion(const InstantSuggestion& suggestion);
// Set |current_match_| to an invalid value, indicating that we do not yet
// have a valid match for the current text in the omnibox.
void InvalidateCurrentMatch();
void set_popup_model(OmniboxPopupModel* popup_model) {
popup_ = popup_model;
}
// TODO(beaudoin): The edit and popup model should be siblings owned by the
// LocationBarView, making this accessor unnecessary.
OmniboxPopupModel* popup_model() const { return popup_; }
const AutocompleteMatch& current_match() const { return current_match_; }
const string16& gray_suggestion() const { return gray_suggestion_; }
// Turns off keyword mode for the current match.
void ClearPopupKeywordMode() const;
const AutocompleteResult& result() const {
return autocomplete_controller_->result();
}
// TODO(beaudoin): Make private once OmniboxEditModel no longer refers to it.
void DoPreconnect(const AutocompleteMatch& match);
// TODO(beaudoin): Make private once OmniboxEditModel no longer refers to it.
// Invoked when the popup has changed its bounds to |bounds|. |bounds| here
// is in screen coordinates.
void OnPopupBoundsChanged(const gfx::Rect& bounds);
private:
// Returns true if a verbatim query should be used for Instant. A verbatim
// query is forced in certain situations, such as pressing delete at the end
// of the edit.
bool UseVerbatimInstant(bool just_deleted_text) const;
// Access the instant controller from the OmniboxEditModel. We need to do this
// because the only valid pointer to InstantController is kept in Browser,
// which OmniboxEditModel has some ways of reaching.
InstantController* GetInstantController() const;
// Creates an AutocompleteMatch for an instant result and sets it into
// |current_match_|.
void CreateAndSetInstantMatch(string16 query_string,
string16 input_text,
AutocompleteMatchType::Type match_type);
// Weak, it owns us.
// TODO(beaudoin): Consider defining a delegate to ease unit testing.
OmniboxEditModel* omnibox_edit_model_;
Profile* profile_;
OmniboxPopupModel* popup_;
InstantController* instant_controller_;
scoped_ptr<AutocompleteController> autocomplete_controller_;
// TODO(beaudoin): This AutocompleteMatch is used to let the OmniboxEditModel
// know what it should display. Not every field is required for that purpose,
// but the ones specifically needed are unclear. We should therefore spend
// some time to extract these fields and use a tighter structure here.
AutocompleteMatch current_match_;
// The completion suggested by instant, displayed in gray text besides
// |fill_into_edit|.
string16 gray_suggestion_;
DISALLOW_COPY_AND_ASSIGN(OmniboxController);
};
#endif // CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_CONTROLLER_H_
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