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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_ACTIONS_TOOLBAR_GTK_H_
#define CHROME_BROWSER_UI_GTK_BROWSER_ACTIONS_TOOLBAR_GTK_H_
#include <map>
#include <string>
#include "base/compiler_specific.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/extensions/extension_toolbar_model.h"
#include "chrome/browser/ui/gtk/custom_button.h"
#include "chrome/browser/ui/gtk/menu_gtk.h"
#include "chrome/browser/ui/gtk/overflow_button.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/base/animation/animation_delegate.h"
#include "ui/base/animation/slide_animation.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 Browser;
class BrowserActionButton;
class GtkThemeService;
class Profile;
namespace extensions {
class Extension;
}
typedef struct _GdkDragContext GdkDragContext;
typedef struct _GtkWidget GtkWidget;
class BrowserActionsToolbarGtk : public ExtensionToolbarModel::Observer,
public ui::AnimationDelegate,
public MenuGtk::Delegate,
public ui::SimpleMenuModel::Delegate,
public content::NotificationObserver {
public:
explicit BrowserActionsToolbarGtk(Browser* browser);
virtual ~BrowserActionsToolbarGtk();
GtkWidget* widget() { return hbox_.get(); }
GtkWidget* chevron() { return overflow_button_->widget(); }
// Returns the widget in use by the BrowserActionButton corresponding to
// |extension|. Used in positioning the ExtensionInstalledBubble for
// BrowserActions.
GtkWidget* GetBrowserActionWidget(const extensions::Extension* extension);
int button_count() { return extension_button_map_.size(); }
Browser* browser() { return browser_; }
ExtensionToolbarModel* model() { return model_; }
// Returns the currently selected tab ID, or -1 if there is none.
int GetCurrentTabId() const;
// Update the display of all buttons.
void Update();
// content::NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
bool animating() {
return resize_animation_.is_animating();
}
private:
friend class BrowserActionButton;
// Initialize drag and drop.
void SetupDrags();
// Query the extensions service for all extensions with browser actions,
// and create the UI for them.
void CreateAllButtons();
// Sets the width of the container and overflow state according to the model.
void SetContainerWidth();
// Create the UI for a single browser action. This will stick the button
// at the end of the toolbar.
void CreateButtonForExtension(const extensions::Extension* extension,
int index);
// Delete resources associated with UI for a browser action.
void RemoveButtonForExtension(const extensions::Extension* extension);
// Change the visibility of widget() based on whether we have any buttons
// to show.
void UpdateVisibility();
// Hide the extension popup, if any.
void HidePopup();
// Animate the toolbar to show the given number of icons. This assumes the
// visibility of the overflow button will not change.
void AnimateToShowNIcons(int count);
// Returns true if this extension should be shown in this toolbar. This can
// return false if we are in an incognito window and the extension is disabled
// for incognito.
bool ShouldDisplayBrowserAction(const extensions::Extension* extension);
// ExtensionToolbarModel::Observer implementation.
virtual void BrowserActionAdded(const extensions::Extension* extension,
int index) OVERRIDE;
virtual void BrowserActionRemoved(
const extensions::Extension* extension) OVERRIDE;
virtual void BrowserActionMoved(const extensions::Extension* extension,
int index) OVERRIDE;
virtual void ModelLoaded() OVERRIDE;
// ui::AnimationDelegate implementation.
virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
// SimpleMenuModel::Delegate implementation.
// In our case, |command_id| is be the index into the model's extension list.
virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
virtual bool GetAcceleratorForCommandId(
int command_id,
ui::Accelerator* accelerator) OVERRIDE;
virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
// MenuGtk::Delegate implementation.
virtual void StoppedShowing() OVERRIDE;
virtual bool AlwaysShowIconForCmd(int command_id) const OVERRIDE;
// Called by the BrowserActionButton in response to drag-begin.
void DragStarted(BrowserActionButton* button, GdkDragContext* drag_context);
// Sets the width of the button area of the toolbar to |new_width|, clamping
// it to appropriate values.
void SetButtonHBoxWidth(int new_width);
// Shows or hides the chevron as appropriate.
void UpdateChevronVisibility();
CHROMEGTK_CALLBACK_4(BrowserActionsToolbarGtk, gboolean, OnDragMotion,
GdkDragContext*, gint, gint, guint);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, void, OnDragEnd,
GdkDragContext*);
CHROMEGTK_CALLBACK_2(BrowserActionsToolbarGtk, gboolean, OnDragFailed,
GdkDragContext*, GtkDragResult);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, void, OnHierarchyChanged,
GtkWidget*);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, void, OnSetFocus, GtkWidget*);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean,
OnGripperMotionNotify, GdkEventMotion*);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean, OnGripperExpose,
GdkEventExpose*);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean,
OnGripperEnterNotify, GdkEventCrossing*);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean,
OnGripperLeaveNotify, GdkEventCrossing*);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean,
OnGripperButtonRelease, GdkEventButton*);
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean,
OnGripperButtonPress, GdkEventButton*);
// The overflow button is pressed.
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean,
OnOverflowButtonPress, GdkEventButton*);
// The user presses a mouse button over the popped up overflow menu.
CHROMEGTK_CALLBACK_1(BrowserActionsToolbarGtk, gboolean,
OnOverflowMenuButtonPress, GdkEventButton*);
CHROMEGTK_CALLBACK_0(BrowserActionsToolbarGtk, void, OnButtonShowOrHide);
Browser* browser_;
Profile* profile_;
GtkThemeService* theme_service_;
ExtensionToolbarModel* model_;
// Contains the drag gripper, browser action buttons, and overflow chevron.
ui::OwnedWidgetGtk hbox_;
// Contains the browser action buttons.
ui::OwnedWidgetGtk button_hbox_;
// The overflow button for chrome theme mode.
scoped_ptr<CustomDrawButton> overflow_button_;
// The separator just next to the overflow button. Only shown in GTK+ theme
// mode. In Chrome theme mode, the overflow button has a separator built in.
GtkWidget* separator_;
scoped_ptr<MenuGtk> overflow_menu_;
scoped_ptr<ui::SimpleMenuModel> overflow_menu_model_;
GtkWidget* overflow_area_;
// A widget for adding extra padding to the left of the overflow button.
GtkWidget* overflow_alignment_;
// The button that is currently being dragged, or NULL.
BrowserActionButton* drag_button_;
// The new position of the button in the drag, or -1.
int drop_index_;
// Map from extension ID to BrowserActionButton, which is a wrapper for
// a chrome button and related functionality. There should be one entry
// for every extension that has a browser action.
typedef std::map<std::string, linked_ptr<BrowserActionButton> >
ExtensionButtonMap;
ExtensionButtonMap extension_button_map_;
// We use this animation for the smart resizing of the toolbar.
ui::SlideAnimation resize_animation_;
// This is the final width we are animating towards.
int desired_width_;
// This is the width we were at when we started animating.
int start_width_;
ui::GtkSignalRegistrar signals_;
content::NotificationRegistrar registrar_;
base::WeakPtrFactory<BrowserActionsToolbarGtk> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(BrowserActionsToolbarGtk);
};
#endif // CHROME_BROWSER_UI_GTK_BROWSER_ACTIONS_TOOLBAR_GTK_H_
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