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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_UI_GTK_OMNIBOX_OMNIBOX_POPUP_VIEW_GTK_H_
#define CHROME_BROWSER_UI_GTK_OMNIBOX_OMNIBOX_POPUP_VIEW_GTK_H_
#include <gtk/gtk.h>
#include <map>
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/autocomplete/autocomplete_match.h"
#include "chrome/browser/ui/omnibox/omnibox_popup_view.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/base/gtk/gtk_signal.h"
#include "ui/base/window_open_disposition.h"
#include "ui/gfx/font.h"
class AutocompleteResult;
class GtkThemeService;
class OmniboxEditModel;
class OmniboxPopupModel;
class OmniboxView;
class SkBitmap;
namespace gfx {
class Image;
}
class OmniboxPopupViewGtk : public OmniboxPopupView,
public content::NotificationObserver {
public:
OmniboxPopupViewGtk(const gfx::Font& font,
OmniboxView* omnibox_view,
OmniboxEditModel* edit_model,
GtkWidget* location_bar);
virtual ~OmniboxPopupViewGtk();
// Initializes the view.
virtual void Init();
// Overridden from OmniboxPopupView:
virtual bool IsOpen() const OVERRIDE;
virtual void InvalidateLine(size_t line) OVERRIDE;
virtual void UpdatePopupAppearance() OVERRIDE;
virtual gfx::Rect GetTargetBounds() OVERRIDE;
virtual void PaintUpdatesNow() OVERRIDE;
virtual void OnDragCanceled() OVERRIDE;
// Overridden from content::NotificationObserver:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
protected:
// Convert a y-coordinate to the closest line / result.
size_t LineFromY(int y) const;
// Return a Rect for the space for a result line. This excludes the border,
// but includes the padding. This is the area that is colored for a
// selection.
gfx::Rect GetRectForLine(size_t line, int width) const;
// Returns the number of hidden matches at the top of the popup. This is
// non-zero when a verbatim match like search-what-you-typed is present but
// should not be shown.
size_t GetHiddenMatchCount() const;
// Returns the current autocomplete result.
virtual const AutocompleteResult& GetResult() const;
private:
// Be friendly for unit tests.
friend class OmniboxPopupViewGtkTest;
static void SetupLayoutForMatch(
PangoLayout* layout,
const base::string16& text,
const AutocompleteMatch::ACMatchClassifications& classifications,
const GdkColor* base_color,
const GdkColor* dim_color,
const GdkColor* url_color,
const std::string& prefix_text);
virtual void Show(size_t num_results);
virtual void Hide();
// Restack the popup window directly above the browser's toplevel window.
void StackWindow();
// Accept a line of the results, for example, when the user clicks a line.
void AcceptLine(size_t line, WindowOpenDisposition disposition);
// Returns the appropriate icon to display beside |match|.
gfx::Image IconForMatch(const AutocompleteMatch& match,
bool selected,
bool is_selected_keyword);
// Returns the |index|th element of match, unless we're selected and showing
// the associated keyword match.
void GetVisibleMatchForInput(size_t index,
const AutocompleteMatch** match,
bool* is_selected_keyword);
CHROMEGTK_CALLBACK_1(OmniboxPopupViewGtk, gboolean, HandleMotion,
GdkEventMotion*);
CHROMEGTK_CALLBACK_1(OmniboxPopupViewGtk, gboolean, HandleButtonPress,
GdkEventButton*);
CHROMEGTK_CALLBACK_1(OmniboxPopupViewGtk, gboolean, HandleButtonRelease,
GdkEventButton*);
CHROMEGTK_CALLBACK_1(OmniboxPopupViewGtk, gboolean, HandleExpose,
GdkEventExpose*);
scoped_ptr<OmniboxPopupModel> model_;
OmniboxView* omnibox_view_;
GtkWidget* location_bar_;
// Our popup window, which is the only widget used, and we paint it on our
// own. This widget shouldn't be exposed outside of this class.
GtkWidget* window_;
// The pango layout object created from the window, cached across exposes.
PangoLayout* layout_;
GtkThemeService* theme_service_;
content::NotificationRegistrar registrar_;
// Font used for suggestions after being derived from the constructor's
// |font|.
gfx::Font font_;
// A list of colors which we should use for drawing the popup. These change
// between gtk and normal mode.
GdkColor border_color_;
GdkColor background_color_;
GdkColor selected_background_color_;
GdkColor hovered_background_color_;
GdkColor content_text_color_;
GdkColor selected_content_text_color_;
GdkColor content_dim_text_color_;
GdkColor selected_content_dim_text_color_;
GdkColor url_text_color_;
GdkColor url_selected_text_color_;
// If the user cancels a dragging action (i.e. by pressing ESC), we don't have
// a convenient way to release mouse capture. Instead we use this flag to
// simply ignore all remaining drag events, and the eventual mouse release
// event. Since OnDragCanceled() can be called when we're not dragging, this
// flag is reset to false on a mouse pressed event, to make sure we don't
// erroneously ignore the next drag.
bool ignore_mouse_drag_;
// Whether our popup is currently open / shown, or closed / hidden.
bool opened_;
DISALLOW_COPY_AND_ASSIGN(OmniboxPopupViewGtk);
};
#endif // CHROME_BROWSER_UI_GTK_OMNIBOX_OMNIBOX_POPUP_VIEW_GTK_H_
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