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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_BROWSER_TOOLBAR_GTK_H_
#define CHROME_BROWSER_UI_GTK_BROWSER_TOOLBAR_GTK_H_
#pragma once
#include <gtk/gtk.h>
#include <string>
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/command_updater.h"
#include "chrome/browser/prefs/pref_member.h"
#include "chrome/browser/ui/gtk/custom_button.h"
#include "chrome/browser/ui/gtk/menu_gtk.h"
#include "chrome/browser/ui/toolbar/wrench_menu_model.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/base/accelerators/accelerator.h"
#include "ui/base/gtk/gtk_signal.h"
#include "ui/base/gtk/gtk_signal_registrar.h"
#include "ui/base/gtk/owned_widget_gtk.h"
#include "ui/base/models/simple_menu_model.h"
class BackForwardButtonGtk;
class Browser;
class BrowserActionsToolbarGtk;
class BrowserWindowGtk;
class CustomDrawButton;
class GtkThemeService;
class LocationBar;
class LocationBarViewGtk;
class ReloadButtonGtk;
class ToolbarModel;
namespace content {
class WebContents;
}
// View class that displays the GTK version of the toolbar and routes gtk
// events back to the Browser.
class BrowserToolbarGtk : public CommandUpdater::CommandObserver,
public ui::AcceleratorProvider,
public MenuGtk::Delegate,
public content::NotificationObserver {
public:
BrowserToolbarGtk(Browser* browser, BrowserWindowGtk* window);
virtual ~BrowserToolbarGtk();
// Create the contents of the toolbar. |top_level_window| is the GtkWindow
// to which we attach our accelerators.
void Init(GtkWindow* top_level_window);
// Set the various widgets' ViewIDs.
void SetViewIDs();
void Show();
void Hide();
// Getter for the containing widget.
GtkWidget* widget() {
return event_box_;
}
// Getter for associated browser object.
Browser* browser() {
return browser_;
}
virtual LocationBar* GetLocationBar() const;
ReloadButtonGtk* GetReloadButton() { return reload_.get(); }
GtkWidget* GetAppMenuButton() { return wrench_menu_button_->widget(); }
BrowserActionsToolbarGtk* GetBrowserActionsToolbar() {
return actions_toolbar_.get();
}
LocationBarViewGtk* GetLocationBarView() { return location_bar_.get(); }
// We have to show padding on the bottom of the toolbar when the bookmark
// is in floating mode. Otherwise the bookmark bar will paint it for us.
void UpdateForBookmarkBarVisibility(bool show_bottom_padding);
void ShowAppMenu();
// Overridden from CommandUpdater::CommandObserver:
virtual void EnabledStateChangedForCommand(int id, bool enabled) OVERRIDE;
// Overridden from MenuGtk::Delegate:
virtual void StoppedShowing() OVERRIDE;
virtual GtkIconSet* GetIconSetForId(int idr) OVERRIDE;
virtual bool AlwaysShowIconForCmd(int command_id) const OVERRIDE;
// Overridden from ui::AcceleratorProvider:
virtual bool GetAcceleratorForCommandId(
int id,
ui::Accelerator* accelerator) OVERRIDE;
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
// Message that we should react to a state change.
void UpdateWebContents(content::WebContents* contents,
bool should_restore_state);
private:
// Connect/Disconnect signals for dragging a url onto the home button.
void SetUpDragForHomeButton(bool enable);
// Sets the top corners of the toolbar to rounded, or sets them to normal,
// depending on the state of the browser window. Returns false if no action
// was taken (the roundedness was already correct), true otherwise.
bool UpdateRoundedness();
// Gtk callback for the "expose-event" signal.
// The alignment contains the toolbar.
CHROMEGTK_CALLBACK_1(BrowserToolbarGtk, gboolean, OnAlignmentExpose,
GdkEventExpose*);
CHROMEGTK_CALLBACK_1(BrowserToolbarGtk, gboolean, OnLocationHboxExpose,
GdkEventExpose*);
// Gtk callback for the "clicked" signal.
CHROMEGTK_CALLBACK_0(BrowserToolbarGtk, void, OnButtonClick);
// Gtk callback to intercept mouse clicks to the menu buttons.
CHROMEGTK_CALLBACK_1(BrowserToolbarGtk, gboolean, OnMenuButtonPressEvent,
GdkEventButton*);
// Used for drags onto home button.
CHROMEGTK_CALLBACK_6(BrowserToolbarGtk, void, OnDragDataReceived,
GdkDragContext*, gint, gint, GtkSelectionData*,
guint, guint);
// Used to draw the upgrade notification badge.
CHROMEGTK_CALLBACK_1(BrowserToolbarGtk, gboolean, OnWrenchMenuButtonExpose,
GdkEventExpose*);
// Updates preference-dependent state.
void NotifyPrefChanged(const std::string* pref);
static void SetSyncMenuLabel(GtkWidget* widget, gpointer userdata);
// Sometimes we only want to show the location w/o the toolbar buttons (e.g.,
// in a popup window).
bool ShouldOnlyShowLocation() const;
// Rebuilds the wrench menu.
void RebuildWrenchMenu();
// An event box that holds |toolbar_|. We need the toolbar to have its own
// GdkWindow when we use the GTK drawing because otherwise the color from our
// parent GdkWindow will leak through with some theme engines (such as
// Clearlooks).
GtkWidget* event_box_;
// This widget handles padding around the outside of the toolbar.
GtkWidget* alignment_;
// Gtk widgets. The toolbar is an hbox with each of the other pieces of the
// toolbar placed side by side.
GtkWidget* toolbar_;
// All widgets to the left or right of the |location_hbox_|. We put the
// widgets on either side of location_hbox_ in their own toolbar so we can
// set their minimum sizes independently of |location_hbox_| which needs to
// grow/shrink in GTK+ mode.
GtkWidget* toolbar_left_;
// Contains all the widgets of the location bar.
GtkWidget* location_hbox_;
// The location bar view.
scoped_ptr<LocationBarViewGtk> location_bar_;
// All the buttons in the toolbar.
scoped_ptr<BackForwardButtonGtk> back_, forward_;
scoped_ptr<CustomDrawButton> home_;
scoped_ptr<ReloadButtonGtk> reload_;
scoped_ptr<BrowserActionsToolbarGtk> actions_toolbar_;
scoped_ptr<CustomDrawButton> wrench_menu_button_;
// The image shown in GTK+ mode in the wrench button.
GtkWidget* wrench_menu_image_;
// The model that contains the security level, text, icon to display...
ToolbarModel* model_;
GtkThemeService* theme_service_;
scoped_ptr<MenuGtk> wrench_menu_;
scoped_ptr<WrenchMenuModel> wrench_menu_model_;
// Flag to invalidate the wrench menu model.
bool is_wrench_menu_model_valid_;
Browser* browser_;
BrowserWindowGtk* window_;
// Controls whether or not a home button should be shown on the toolbar.
BooleanPrefMember show_home_button_;
// Preferences controlling the configured home page.
StringPrefMember home_page_;
BooleanPrefMember home_page_is_new_tab_page_;
content::NotificationRegistrar registrar_;
// A GtkEntry that isn't part of the hierarchy. We keep this for native
// rendering.
ui::OwnedWidgetGtk offscreen_entry_;
// Manages the home button drop signal handler.
scoped_ptr<ui::GtkSignalRegistrar> drop_handler_;
DISALLOW_COPY_AND_ASSIGN(BrowserToolbarGtk);
};
#endif // CHROME_BROWSER_UI_GTK_BROWSER_TOOLBAR_GTK_H_
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