// 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.
#include "chrome/browser/ui/gtk/browser_actions_toolbar_gtk.h"
#include <gtk/gtk.h>
#include <algorithm>
#include <utility>
#include <vector>
#include "base/bind.h"
#include "base/i18n/rtl.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/extensions/api/commands/command_service.h"
#include "chrome/browser/extensions/extension_action.h"
#include "chrome/browser/extensions/extension_action_icon_factory.h"
#include "chrome/browser/extensions/extension_action_manager.h"
#include "chrome/browser/extensions/extension_context_menu_model.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/extensions/extension_toolbar_model.h"
#include "chrome/browser/extensions/extension_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sessions/session_tab_helper.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/gtk/browser_window_gtk.h"
#include "chrome/browser/ui/gtk/custom_button.h"
#include "chrome/browser/ui/gtk/extensions/extension_popup_gtk.h"
#include "chrome/browser/ui/gtk/gtk_chrome_button.h"
#include "chrome/browser/ui/gtk/gtk_chrome_shrinkable_hbox.h"
#include "chrome/browser/ui/gtk/gtk_theme_service.h"
#include "chrome/browser/ui/gtk/gtk_util.h"
#include "chrome/browser/ui/gtk/hover_controller_gtk.h"
#include "chrome/browser/ui/gtk/menu_gtk.h"
#include "chrome/browser/ui/gtk/view_id_util.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_source.h"
#include "extensions/common/extension.h"
#include "extensions/common/manifest_constants.h"
#include "grit/theme_resources.h"
#include "grit/ui_resources.h"
#include "ui/base/accelerators/platform_accelerator_gtk.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas_skia_paint.h"
#include "ui/gfx/gtk_compat.h"
#include "ui/gfx/gtk_util.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/image/image_skia_operations.h"
using extensions::Extension;
using extensions::ExtensionActionManager;
namespace {
// The width of the browser action buttons.
const int kButtonWidth = 27;
// The padding between browser action buttons.
const int kButtonPadding = 4;
// The padding to the right of the browser action buttons (between the buttons
// and chevron if they are both showing).
const int kButtonChevronPadding = 2;
// Width of the invisible gripper for resizing the toolbar.
const int kResizeGripperWidth = 4;
const char kDragTarget[] = "application/x-chrome-browseraction";
GtkTargetEntry GetDragTargetEntry() {
GtkTargetEntry drag_target;
drag_target.target = const_cast<char*>(kDragTarget);
drag_target.flags = GTK_TARGET_SAME_APP;
drag_target.info = 0;
return drag_target;
}
// The minimum width in pixels of the button hbox if |icon_count| icons are
// showing.
gint WidthForIconCount(gint icon_count) {
return std::max((kButtonWidth + kButtonPadding) * icon_count - kButtonPadding,
0);
}
} // namespace
using ui::SimpleMenuModel;
class BrowserActionButton : public content::NotificationObserver,
public ExtensionActionIconFactory::Observer,
public ExtensionContextMenuModel::PopupDelegate,
public MenuGtk::Delegate {
public:
BrowserActionButton(BrowserActionsToolbarGtk* toolbar,
const Extension* extension,
GtkThemeService* theme_provider)
: toolbar_(toolbar),
extension_(extension),
image_(NULL),
icon_factory_(toolbar->browser()->profile(), extension,
browser_action(), this),
accel_group_(NULL) {
button_.reset(new CustomDrawButton(
theme_provider,
IDR_BROWSER_ACTION,
IDR_BROWSER_ACTION_P,
IDR_BROWSER_ACTION_H,
0,
NULL));
gtk_widget_set_size_request(button(), kButtonWidth, kButtonWidth);
alignment_.Own(gtk_alignment_new(0, 0, 1, 1));
gtk_container_add(GTK_CONTAINER(alignment_.get()), button());
gtk_widget_show(button());
DCHECK(browser_action());
UpdateState();
signals_.Connect(button(), "button-press-event",
G_CALLBACK(OnButtonPress), this);
signals_.Connect(button(), "clicked",
G_CALLBACK(OnClicked), this);
signals_.Connect(button(), "drag-begin",
G_CALLBACK(OnDragBegin), this);
signals_.ConnectAfter(widget(), "expose-event",
G_CALLBACK(OnExposeEvent), this);
if (toolbar_->browser()->window()) {
// If the window exists already, then the browser action button has been
// recreated after the window was created, for example when the extension
// is reloaded.
ConnectBrowserActionPopupAccelerator();
} else {
// Window doesn't exist yet, wait for it.
signals_.Connect(toolbar->widget(), "realize",
G_CALLBACK(OnRealize), this);
}
registrar_.Add(
this, chrome::NOTIFICATION_EXTENSION_BROWSER_ACTION_UPDATED,
content::Source<ExtensionAction>(browser_action()));
registrar_.Add(
this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
content::Source<Profile>(
toolbar->browser()->profile()->GetOriginalProfile()));
registrar_.Add(
this, chrome::NOTIFICATION_EXTENSION_COMMAND_ADDED,
content::Source<Profile>(
toolbar->browser()->profile()->GetOriginalProfile()));
registrar_.Add(
this, chrome::NOTIFICATION_EXTENSION_COMMAND_REMOVED,
content::Source<Profile>(
toolbar->browser()->profile()->GetOriginalProfile()));
}
virtual ~BrowserActionButton() {
DisconnectBrowserActionPopupAccelerator();
alignment_.Destroy();
}
GtkWidget* button() { return button_->widget(); }
GtkWidget* widget() { return alignment_.get(); }
const Extension* extension() { return extension_; }
// NotificationObserver implementation.
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE {
switch (type) {
case chrome::NOTIFICATION_EXTENSION_BROWSER_ACTION_UPDATED:
UpdateState();
break;
case chrome::NOTIFICATION_EXTENSION_UNLOADED:
case chrome::NOTIFICATION_WINDOW_CLOSED:
DisconnectBrowserActionPopupAccelerator();
break;
case chrome::NOTIFICATION_EXTENSION_COMMAND_ADDED:
case chrome::NOTIFICATION_EXTENSION_COMMAND_REMOVED: {
std::pair<const std::string, const std::string>* payload =
content::Details<std::pair<const std::string, const std::string> >(
details).ptr();
if (extension_->id() == payload->first &&
payload->second ==
extensions::manifest_values::kBrowserActionCommandEvent) {
if (type == chrome::NOTIFICATION_EXTENSION_COMMAND_ADDED)
ConnectBrowserActionPopupAccelerator();
else
DisconnectBrowserActionPopupAccelerator();
}
break;
}
default:
NOTREACHED();
break;
}
}
// ExtensionActionIconFactory::Observer implementation.
virtual void OnIconUpdated() OVERRIDE {
UpdateState();
}
// Updates the button based on the latest state from the associated
// browser action.
void UpdateState() {
int tab_id = toolbar_->GetCurrentTabId();
if (tab_id < 0)
return;
std::string tooltip = browser_action()->GetTitle(tab_id);
if (tooltip.empty())
gtk_widget_set_has_tooltip(button(), FALSE);
else
gtk_widget_set_tooltip_text(button(), tooltip.c_str());
enabled_ = browser_action()->GetIsVisible(tab_id);
if (!enabled_)
button_->SetPaintOverride(GTK_STATE_INSENSITIVE);
else
button_->UnsetPaintOverride();
gfx::Image image = icon_factory_.GetIcon(tab_id);
if (!image.IsEmpty()) {
if (enabled_) {
SetImage(image);
} else {
SetImage(gfx::Image(gfx::ImageSkiaOperations::CreateTransparentImage(
image.AsImageSkia(), .25)));
}
}
gtk_widget_queue_draw(button());
}
gfx::Image GetIcon() {
return icon_factory_.GetIcon(toolbar_->GetCurrentTabId());
}
MenuGtk* GetContextMenu() {
if (!extension_->ShowConfigureContextMenus())
return NULL;
context_menu_model_ =
new ExtensionContextMenuModel(extension_, toolbar_->browser(), this);
context_menu_.reset(
new MenuGtk(this, context_menu_model_.get()));
return context_menu_.get();
}
private:
// Activate the browser action. Returns true if a popup was shown. Showing the
// popup will grant tab permissions if |should_grant| is true. Popup's shown
// via an API should not grant permissions.
bool Activate(GtkWidget* widget, bool should_grant) {
ExtensionToolbarModel* model = toolbar_->model();
const Extension* extension = extension_;
Browser* browser = toolbar_->browser();
GURL popup_url;
switch (model->ExecuteBrowserAction(
extension, browser, &popup_url, should_grant)) {
case ExtensionToolbarModel::ACTION_NONE:
break;
case ExtensionToolbarModel::ACTION_SHOW_POPUP:
ExtensionPopupGtk::Show(popup_url, browser, widget,
ExtensionPopupGtk::SHOW);
return true;
}
return false;
}
// MenuGtk::Delegate implementation.
virtual void StoppedShowing() OVERRIDE {
if (enabled_)
button_->UnsetPaintOverride();
else
button_->SetPaintOverride(GTK_STATE_INSENSITIVE);
// If the context menu was showing for the overflow menu, re-assert the
// grab that was shadowed.
if (toolbar_->overflow_menu_.get())
gtk_util::GrabAllInput(toolbar_->overflow_menu_->widget());
}
virtual void CommandWillBeExecuted() OVERRIDE {
// If the context menu was showing for the overflow menu, and a command
// is executed, then stop showing the overflow menu.
if (toolbar_->overflow_menu_.get())
toolbar_->overflow_menu_->Cancel();
}
// ExtensionContextMenuModel::PopupDelegate implementation.
virtual void InspectPopup(ExtensionAction* action) OVERRIDE {
GURL popup_url = action->GetPopupUrl(toolbar_->GetCurrentTabId());
ExtensionPopupGtk::Show(popup_url, toolbar_->browser(), widget(),
ExtensionPopupGtk::SHOW_AND_INSPECT);
}
void SetImage(const gfx::Image& image) {
if (!image_) {
image_ = gtk_image_new_from_pixbuf(image.ToGdkPixbuf());
gtk_button_set_image(GTK_BUTTON(button()), image_);
} else {
gtk_image_set_from_pixbuf(GTK_IMAGE(image_), image.ToGdkPixbuf());
}
}
static gboolean OnButtonPress(GtkWidget* widget,
GdkEventButton* event,
BrowserActionButton* button) {
if (event->button != 3)
return FALSE;
MenuGtk* menu = button->GetContextMenu();
if (!menu)
return FALSE;
button->button_->SetPaintOverride(GTK_STATE_ACTIVE);
menu->PopupForWidget(widget, event->button, event->time);
return TRUE;
}
static void OnClicked(GtkWidget* widget, BrowserActionButton* button) {
if (button->enabled_)
button->Activate(widget, true);
}
static gboolean OnExposeEvent(GtkWidget* widget,
GdkEventExpose* event,
BrowserActionButton* button) {
int tab_id = button->toolbar_->GetCurrentTabId();
if (tab_id < 0)
return FALSE;
ExtensionAction* action = button->browser_action();
if (action->GetBadgeText(tab_id).empty())
return FALSE;
gfx::CanvasSkiaPaint canvas(event, false);
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
action->PaintBadge(&canvas, gfx::Rect(allocation), tab_id);
return FALSE;
}
static void OnDragBegin(GtkWidget* widget,
GdkDragContext* drag_context,
BrowserActionButton* button) {
// Simply pass along the notification to the toolbar. The point of this
// function is to tell the toolbar which BrowserActionButton initiated the
// drag.
button->toolbar_->DragStarted(button, drag_context);
}
// The accelerator handler for when the shortcuts to open the popup is struck.
static gboolean OnGtkAccelerator(GtkAccelGroup* accel_group,
GObject* acceleratable,
guint keyval,
GdkModifierType modifier,
BrowserActionButton* button) {
// Open the popup for this extension.
GtkWidget* anchor = button->widget();
// The anchor might be in the overflow menu. Then we point to the chevron.
if (!gtk_widget_get_visible(anchor))
anchor = button->toolbar_->chevron();
button->Activate(anchor, true);
return TRUE;
}
// The handler for when the browser action is realized. |user_data| contains a
// pointer to the BrowserAction shown.
static void OnRealize(GtkWidget* widget, void* user_data) {
BrowserActionButton* button = static_cast<BrowserActionButton*>(user_data);
button->ConnectBrowserActionPopupAccelerator();
}
// Connect the accelerator for the browser action popup.
void ConnectBrowserActionPopupAccelerator() {
extensions::CommandService* command_service =
extensions::CommandService::Get(toolbar_->browser()->profile());
extensions::Command command;
if (command_service->GetBrowserActionCommand(extension_->id(),
extensions::CommandService::ACTIVE_ONLY,
&command,
NULL)) {
// Found the browser action shortcut command, register it.
keybinding_ = command.accelerator();
gfx::NativeWindow window =
toolbar_->browser()->window()->GetNativeWindow();
accel_group_ = gtk_accel_group_new();
gtk_window_add_accel_group(window, accel_group_);
gtk_accel_group_connect(
accel_group_,
ui::GetGdkKeyCodeForAccelerator(keybinding_),
ui::GetGdkModifierForAccelerator(keybinding_),
GtkAccelFlags(0),
g_cclosure_new(G_CALLBACK(OnGtkAccelerator), this, NULL));
// Since we've added an accelerator, we'll need to unregister it before
// the window is closed, so we listen for the window being closed.
registrar_.Add(this,
chrome::NOTIFICATION_WINDOW_CLOSED,
content::Source<GtkWindow>(window));
}
}
// Disconnect the accelerator for the browser action popup and delete clean up
// the accelerator group registration.
void DisconnectBrowserActionPopupAccelerator() {
if (accel_group_) {
gfx::NativeWindow window =
toolbar_->browser()->window()->GetNativeWindow();
gtk_accel_group_disconnect_key(
accel_group_,
ui::GetGdkKeyCodeForAccelerator(keybinding_),
GetGdkModifierForAccelerator(keybinding_));
gtk_window_remove_accel_group(window, accel_group_);
g_object_unref(accel_group_);
accel_group_ = NULL;
keybinding_ = ui::Accelerator();
// We've removed the accelerator, so no need to listen to this anymore.
registrar_.Remove(this,
chrome::NOTIFICATION_WINDOW_CLOSED,
content::Source<GtkWindow>(window));
}
}
ExtensionAction* browser_action() const {
return ExtensionActionManager::Get(toolbar_->browser()->profile())->
GetBrowserAction(*extension_);
}
// The toolbar containing this button.
BrowserActionsToolbarGtk* toolbar_;
// The extension that contains this browser action.
const Extension* extension_;
// The button for this browser action.
scoped_ptr<CustomDrawButton> button_;
// Whether the browser action is enabled (equivalent to whether a page action
// is visible).
bool enabled_;
// The top level widget (parent of |button_|).
ui::OwnedWidgetGtk alignment_;
// The one image subwidget in |button_|. We keep this out so we don't alter
// the widget hierarchy while changing the button image because changing the
// GTK widget hierarchy invalidates all tooltips and several popular
// extensions change browser action icon in a loop.
GtkWidget* image_;
// The object that will be used to get the browser action icon for us.
// It may load the icon asynchronously (in which case the initial icon
// returned by the factory will be transparent), so we have to observe it for
// updates to the icon.
ExtensionActionIconFactory icon_factory_;
// Same as |default_icon_|, but stored as SkBitmap.
SkBitmap default_skbitmap_;
ui::GtkSignalRegistrar signals_;
content::NotificationRegistrar registrar_;
// The accelerator group used to handle accelerators, owned by this object.
GtkAccelGroup* accel_group_;
// The keybinding accelerator registered to show the browser action popup.
ui::Accelerator keybinding_;
// The context menu view and model for this extension action.
scoped_ptr<MenuGtk> context_menu_;
scoped_refptr<ExtensionContextMenuModel> context_menu_model_;
friend class BrowserActionsToolbarGtk;
};
// BrowserActionsToolbarGtk ----------------------------------------------------
BrowserActionsToolbarGtk::BrowserActionsToolbarGtk(Browser* browser)
: browser_(browser),
profile_(browser->profile()),
theme_service_(GtkThemeService::GetFrom(browser->profile())),
model_(NULL),
hbox_(gtk_hbox_new(FALSE, 0)),
button_hbox_(gtk_chrome_shrinkable_hbox_new(TRUE, FALSE, kButtonPadding)),
drag_button_(NULL),
drop_index_(-1),
resize_animation_(this),
desired_width_(0),
start_width_(0),
weak_factory_(this) {
model_ = ExtensionToolbarModel::Get(profile_);
if (!model_)
return;
overflow_button_.reset(new CustomDrawButton(
theme_service_,
IDR_BROWSER_ACTIONS_OVERFLOW,
IDR_BROWSER_ACTIONS_OVERFLOW_P,
IDR_BROWSER_ACTIONS_OVERFLOW_H,
0,
gtk_arrow_new(GTK_ARROW_DOWN, GTK_SHADOW_NONE)));
GtkWidget* gripper = gtk_button_new();
gtk_widget_set_size_request(gripper, kResizeGripperWidth, -1);
gtk_widget_set_can_focus(gripper, FALSE);
gtk_widget_add_events(gripper, GDK_POINTER_MOTION_MASK);
signals_.Connect(gripper, "motion-notify-event",
G_CALLBACK(OnGripperMotionNotifyThunk), this);
signals_.Connect(gripper, "expose-event",
G_CALLBACK(OnGripperExposeThunk), this);
signals_.Connect(gripper, "enter-notify-event",
G_CALLBACK(OnGripperEnterNotifyThunk), this);
signals_.Connect(gripper, "leave-notify-event",
G_CALLBACK(OnGripperLeaveNotifyThunk), this);
signals_.Connect(gripper, "button-release-event",
G_CALLBACK(OnGripperButtonReleaseThunk), this);
signals_.Connect(gripper, "button-press-event",
G_CALLBACK(OnGripperButtonPressThunk), this);
signals_.Connect(chevron(), "button-press-event",
G_CALLBACK(OnOverflowButtonPressThunk), this);
// |overflow_alignment| adds padding to the right of the browser action
// buttons, but only appears when the overflow menu is showing.
overflow_alignment_.Own(gtk_alignment_new(0, 0, 1, 1));
gtk_container_add(GTK_CONTAINER(overflow_alignment_.get()), chevron());
// |overflow_area_| holds the overflow chevron and the separator, which
// is only shown in GTK+ theme mode.
overflow_area_.Own(gtk_hbox_new(FALSE, 0));
gtk_box_pack_start(GTK_BOX(overflow_area_.get()), overflow_alignment_.get(),
FALSE, FALSE, 0);
separator_.Own(gtk_vseparator_new());
gtk_box_pack_start(GTK_BOX(overflow_area_.get()), separator_.get(),
FALSE, FALSE, 0);
gtk_widget_set_no_show_all(separator_.get(), TRUE);
gtk_widget_show_all(overflow_area_.get());
gtk_widget_set_no_show_all(overflow_area_.get(), TRUE);
gtk_box_pack_start(GTK_BOX(hbox_.get()), gripper, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox_.get()), button_hbox_.get(), TRUE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(hbox_.get()), overflow_area_.get(), FALSE, FALSE,
0);
model_->AddObserver(this);
SetupDrags();
if (model_->extensions_initialized()) {
CreateAllButtons();
SetContainerWidth();
}
// We want to connect to "set-focus" on the toplevel window; we have to wait
// until we are added to a toplevel window to do so.
signals_.Connect(widget(), "hierarchy-changed",
G_CALLBACK(OnHierarchyChangedThunk), this);
ViewIDUtil::SetID(button_hbox_.get(), VIEW_ID_BROWSER_ACTION_TOOLBAR);
registrar_.Add(this,
chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
content::Source<ThemeService>(theme_service_));
theme_service_->InitThemesFor(this);
}
BrowserActionsToolbarGtk::~BrowserActionsToolbarGtk() {
if (model_)
model_->RemoveObserver(this);
button_hbox_.Destroy();
hbox_.Destroy();
}
int BrowserActionsToolbarGtk::GetCurrentTabId() const {
content::WebContents* active_tab =
browser_->tab_strip_model()->GetActiveWebContents();
if (!active_tab)
return -1;
return SessionTabHelper::FromWebContents(active_tab)->session_id().id();
}
void BrowserActionsToolbarGtk::Update() {
for (ExtensionButtonMap::iterator iter = extension_button_map_.begin();
iter != extension_button_map_.end(); ++iter) {
iter->second->UpdateState();
}
}
void BrowserActionsToolbarGtk::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK(chrome::NOTIFICATION_BROWSER_THEME_CHANGED == type);
gtk_widget_set_visible(separator_.get(), theme_service_->UsingNativeTheme());
}
void BrowserActionsToolbarGtk::SetupDrags() {
GtkTargetEntry drag_target = GetDragTargetEntry();
gtk_drag_dest_set(button_hbox_.get(), GTK_DEST_DEFAULT_DROP, &drag_target, 1,
GDK_ACTION_MOVE);
signals_.Connect(button_hbox_.get(), "drag-motion",
G_CALLBACK(OnDragMotionThunk), this);
}
void BrowserActionsToolbarGtk::CreateAllButtons() {
extension_button_map_.clear();
int i = 0;
const extensions::ExtensionList& toolbar_items = model_->toolbar_items();
for (extensions::ExtensionList::const_iterator iter = toolbar_items.begin();
iter != toolbar_items.end(); ++iter) {
CreateButtonForExtension(iter->get(), i++);
}
}
void BrowserActionsToolbarGtk::SetContainerWidth() {
int showing_actions = model_->GetVisibleIconCount();
if (showing_actions >= 0)
SetButtonHBoxWidth(WidthForIconCount(showing_actions));
}
void BrowserActionsToolbarGtk::CreateButtonForExtension(
const Extension* extension, int index) {
if (!ShouldDisplayBrowserAction(extension))
return;
if (profile_->IsOffTheRecord())
index = model_->OriginalIndexToIncognito(index);
RemoveButtonForExtension(extension);
linked_ptr<BrowserActionButton> button(
new BrowserActionButton(this, extension, theme_service_));
gtk_chrome_shrinkable_hbox_pack_start(
GTK_CHROME_SHRINKABLE_HBOX(button_hbox_.get()), button->widget(), 0);
gtk_box_reorder_child(GTK_BOX(button_hbox_.get()), button->widget(), index);
extension_button_map_[extension->id()] = button;
GtkTargetEntry drag_target = GetDragTargetEntry();
gtk_drag_source_set(button->button(), GDK_BUTTON1_MASK, &drag_target, 1,
GDK_ACTION_MOVE);
// We ignore whether the drag was a "success" or "failure" in Gtk's opinion.
signals_.Connect(button->button(), "drag-end",
G_CALLBACK(&OnDragEndThunk), this);
signals_.Connect(button->button(), "drag-failed",
G_CALLBACK(&OnDragFailedThunk), this);
// Any time a browser action button is shown or hidden we have to update
// the chevron state.
signals_.Connect(button->widget(), "show",
G_CALLBACK(&OnButtonShowOrHideThunk), this);
signals_.Connect(button->widget(), "hide",
G_CALLBACK(&OnButtonShowOrHideThunk), this);
gtk_widget_show(button->widget());
UpdateVisibility();
}
BrowserActionButton* BrowserActionsToolbarGtk::GetBrowserActionButton(
const Extension* extension) {
ExtensionButtonMap::iterator it = extension_button_map_.find(
extension->id());
return it == extension_button_map_.end() ? NULL : it->second.get();
}
GtkWidget* BrowserActionsToolbarGtk::GetBrowserActionWidget(
const Extension* extension) {
BrowserActionButton* button = GetBrowserActionButton(extension);
return button == NULL ? NULL : button->widget();
}
void BrowserActionsToolbarGtk::RemoveButtonForExtension(
const Extension* extension) {
if (extension_button_map_.erase(extension->id()))
UpdateVisibility();
UpdateChevronVisibility();
}
void BrowserActionsToolbarGtk::UpdateVisibility() {
gtk_widget_set_visible(widget(), button_count() != 0);
}
bool BrowserActionsToolbarGtk::ShouldDisplayBrowserAction(
const Extension* extension) {
// Only display incognito-enabled extensions while in incognito mode.
return (!profile_->IsOffTheRecord() ||
extension_util:: IsIncognitoEnabled(
extension->id(),
extensions::ExtensionSystem::Get(profile_)->extension_service()));
}
void BrowserActionsToolbarGtk::HidePopup() {
ExtensionPopupGtk* popup = ExtensionPopupGtk::get_current_extension_popup();
if (popup)
popup->DestroyPopup();
}
void BrowserActionsToolbarGtk::AnimateToShowNIcons(int count) {
desired_width_ = WidthForIconCount(count);
GtkAllocation allocation;
gtk_widget_get_allocation(button_hbox_.get(), &allocation);
start_width_ = allocation.width;
resize_animation_.Reset();
resize_animation_.Show();
}
void BrowserActionsToolbarGtk::BrowserActionAdded(const Extension* extension,
int index) {
overflow_menu_.reset();
CreateButtonForExtension(extension, index);
// If we are still initializing the container, don't bother animating.
if (!model_->extensions_initialized())
return;
// Animate the addition if we are showing all browser action buttons.
if (!gtk_widget_get_visible(overflow_area_.get())) {
AnimateToShowNIcons(button_count());
model_->SetVisibleIconCount(button_count());
}
}
void BrowserActionsToolbarGtk::BrowserActionRemoved(
const Extension* extension) {
overflow_menu_.reset();
if (drag_button_ != NULL) {
// Break the current drag.
gtk_grab_remove(button_hbox_.get());
}
RemoveButtonForExtension(extension);
if (!gtk_widget_get_visible(overflow_area_.get())) {
AnimateToShowNIcons(button_count());
model_->SetVisibleIconCount(button_count());
}
}
void BrowserActionsToolbarGtk::BrowserActionMoved(const Extension* extension,
int index) {
// We initiated this move action, and have already moved the button.
if (drag_button_ != NULL)
return;
GtkWidget* button_widget = GetBrowserActionWidget(extension);
if (!button_widget) {
if (ShouldDisplayBrowserAction(extension))
NOTREACHED();
return;
}
if (profile_->IsOffTheRecord())
index = model_->OriginalIndexToIncognito(index);
gtk_box_reorder_child(GTK_BOX(button_hbox_.get()), button_widget, index);
}
bool BrowserActionsToolbarGtk::BrowserActionShowPopup(
const Extension* extension) {
// Do not override other popups and only show in active window.
if (ExtensionPopupGtk::get_current_extension_popup() ||
!browser_->window()->IsActive()) {
return false;
}
BrowserActionButton* button = GetBrowserActionButton(extension);
if (button == NULL || button->widget() == NULL)
return false;
GtkWidget* anchor = button->widget();
if (!gtk_widget_get_visible(anchor))
anchor = button->toolbar_->chevron();
return button->Activate(anchor, false);
}
void BrowserActionsToolbarGtk::VisibleCountChanged() {
SetContainerWidth();
}
void BrowserActionsToolbarGtk::AnimationProgressed(
const gfx::Animation* animation) {
int width = start_width_ + (desired_width_ - start_width_) *
animation->GetCurrentValue();
gtk_widget_set_size_request(button_hbox_.get(), width, -1);
if (width == desired_width_)
resize_animation_.Reset();
}
void BrowserActionsToolbarGtk::AnimationEnded(const gfx::Animation* animation) {
gtk_widget_set_size_request(button_hbox_.get(), desired_width_, -1);
UpdateChevronVisibility();
}
bool BrowserActionsToolbarGtk::IsCommandIdChecked(int command_id) const {
return false;
}
bool BrowserActionsToolbarGtk::IsCommandIdEnabled(int command_id) const {
const Extension* extension = model_->toolbar_items()[command_id].get();
return ExtensionActionManager::Get(profile_)->GetBrowserAction(*extension)
->GetIsVisible(GetCurrentTabId());
}
bool BrowserActionsToolbarGtk::GetAcceleratorForCommandId(
int command_id,
ui::Accelerator* accelerator) {
return false;
}
void BrowserActionsToolbarGtk::ExecuteCommand(int command_id, int event_flags) {
const Extension* extension = model_->toolbar_items()[command_id].get();
GURL popup_url;
switch (model_->ExecuteBrowserAction(
extension, browser(), &popup_url, true)) {
case ExtensionToolbarModel::ACTION_NONE:
break;
case ExtensionToolbarModel::ACTION_SHOW_POPUP:
ExtensionPopupGtk::Show(popup_url, browser(), chevron(),
ExtensionPopupGtk::SHOW);
break;
}
}
void BrowserActionsToolbarGtk::StoppedShowing() {
overflow_button_->UnsetPaintOverride();
}
bool BrowserActionsToolbarGtk::AlwaysShowIconForCmd(int command_id) const {
return true;
}
void BrowserActionsToolbarGtk::DragStarted(BrowserActionButton* button,
GdkDragContext* drag_context) {
// No representation of the widget following the cursor.
GdkPixbuf* pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 1, 1);
gtk_drag_set_icon_pixbuf(drag_context, pixbuf, 0, 0);
g_object_unref(pixbuf);
DCHECK(!drag_button_);
drag_button_ = button;
}
void BrowserActionsToolbarGtk::SetButtonHBoxWidth(int new_width) {
gint max_width = WidthForIconCount(button_count());
new_width = std::min(max_width, new_width);
new_width = std::max(new_width, 0);
gtk_widget_set_size_request(button_hbox_.get(), new_width, -1);
}
void BrowserActionsToolbarGtk::UpdateChevronVisibility() {
int showing_icon_count =
gtk_chrome_shrinkable_hbox_get_visible_child_count(
GTK_CHROME_SHRINKABLE_HBOX(button_hbox_.get()));
if (showing_icon_count == 0) {
gtk_alignment_set_padding(GTK_ALIGNMENT(overflow_alignment_.get()),
0, 0, 0, 0);
} else {
gtk_alignment_set_padding(GTK_ALIGNMENT(overflow_alignment_.get()),
0, 0, kButtonChevronPadding, 0);
}
if (button_count() > showing_icon_count) {
if (!gtk_widget_get_visible(overflow_area_.get())) {
if (drag_button_) {
// During drags, when the overflow chevron shows for the first time,
// take that much space away from |button_hbox_| to make the drag look
// smoother.
GtkRequisition req;
gtk_widget_size_request(chevron(), &req);
gint overflow_width = req.width;
gtk_widget_size_request(button_hbox_.get(), &req);
gint button_hbox_width = req.width;
button_hbox_width = std::max(button_hbox_width - overflow_width, 0);
gtk_widget_set_size_request(button_hbox_.get(), button_hbox_width, -1);
}
gtk_widget_show(overflow_area_.get());
}
} else {
gtk_widget_hide(overflow_area_.get());
}
}
gboolean BrowserActionsToolbarGtk::OnDragMotion(GtkWidget* widget,
GdkDragContext* drag_context,
gint x, gint y, guint time) {
// Only handle drags we initiated.
if (!drag_button_)
return FALSE;
if (base::i18n::IsRTL()) {
GtkAllocation allocation;
gtk_widget_get_allocation(widget, &allocation);
x = allocation.width - x;
}
drop_index_ = x < kButtonWidth ? 0 : x / (kButtonWidth + kButtonPadding);
// We will go ahead and reorder the child in order to provide visual feedback
// to the user. We don't inform the model that it has moved until the drag
// ends.
gtk_box_reorder_child(GTK_BOX(button_hbox_.get()), drag_button_->widget(),
drop_index_);
gdk_drag_status(drag_context, GDK_ACTION_MOVE, time);
return TRUE;
}
void BrowserActionsToolbarGtk::OnDragEnd(GtkWidget* button,
GdkDragContext* drag_context) {
if (drop_index_ != -1) {
if (profile_->IsOffTheRecord())
drop_index_ = model_->IncognitoIndexToOriginal(drop_index_);
model_->MoveBrowserAction(drag_button_->extension(), drop_index_);
}
drag_button_ = NULL;
drop_index_ = -1;
}
gboolean BrowserActionsToolbarGtk::OnDragFailed(GtkWidget* widget,
GdkDragContext* drag_context,
GtkDragResult result) {
// We connect to this signal and return TRUE so that the default failure
// animation (wherein the drag widget floats back to the start of the drag)
// does not show, and the drag-end signal is emitted immediately instead of
// several seconds later.
return TRUE;
}
void BrowserActionsToolbarGtk::OnHierarchyChanged(
GtkWidget* widget, GtkWidget* previous_toplevel) {
GtkWidget* toplevel = gtk_widget_get_toplevel(widget);
if (!gtk_widget_is_toplevel(toplevel))
return;
signals_.Connect(toplevel, "set-focus", G_CALLBACK(OnSetFocusThunk), this);
}
void BrowserActionsToolbarGtk::OnSetFocus(GtkWidget* widget,
GtkWidget* focus_widget) {
ExtensionPopupGtk* popup = ExtensionPopupGtk::get_current_extension_popup();
// The focus of the parent window has changed. Close the popup. Delay the hide
// because it will destroy the RenderViewHost, which may still be on the
// call stack.
if (!popup || popup->being_inspected())
return;
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&BrowserActionsToolbarGtk::HidePopup,
weak_factory_.GetWeakPtr()));
}
gboolean BrowserActionsToolbarGtk::OnGripperMotionNotify(
GtkWidget* widget, GdkEventMotion* event) {
if (!(event->state & GDK_BUTTON1_MASK))
return FALSE;
// Calculate how much the user dragged the gripper and subtract that off the
// button container's width.
int distance_dragged;
if (base::i18n::IsRTL()) {
distance_dragged = -event->x;
} else {
GtkAllocation widget_allocation;
gtk_widget_get_allocation(widget, &widget_allocation);
distance_dragged = event->x - widget_allocation.width;
}
GtkAllocation button_hbox_allocation;
gtk_widget_get_allocation(button_hbox_.get(), &button_hbox_allocation);
gint new_width = button_hbox_allocation.width - distance_dragged;
SetButtonHBoxWidth(new_width);
return FALSE;
}
gboolean BrowserActionsToolbarGtk::OnGripperExpose(GtkWidget* gripper,
GdkEventExpose* expose) {
return TRUE;
}
// These three signal handlers (EnterNotify, LeaveNotify, and ButtonRelease)
// are used to give the gripper the resize cursor. Since it doesn't have its
// own window, we have to set the cursor whenever the pointer moves into the
// button or leaves the button, and be sure to leave it on when the user is
// dragging.
gboolean BrowserActionsToolbarGtk::OnGripperEnterNotify(
GtkWidget* gripper, GdkEventCrossing* event) {
gdk_window_set_cursor(gtk_widget_get_window(gripper),
gfx::GetCursor(GDK_SB_H_DOUBLE_ARROW));
return FALSE;
}
gboolean BrowserActionsToolbarGtk::OnGripperLeaveNotify(
GtkWidget* gripper, GdkEventCrossing* event) {
if (!(event->state & GDK_BUTTON1_MASK))
gdk_window_set_cursor(gtk_widget_get_window(gripper), NULL);
return FALSE;
}
gboolean BrowserActionsToolbarGtk::OnGripperButtonRelease(
GtkWidget* gripper, GdkEventButton* event) {
GtkAllocation allocation;
gtk_widget_get_allocation(gripper, &allocation);
gfx::Rect gripper_rect(0, 0, allocation.width, allocation.height);
gfx::Point release_point(event->x, event->y);
if (!gripper_rect.Contains(release_point))
gdk_window_set_cursor(gtk_widget_get_window(gripper), NULL);
// After the user resizes the toolbar, we want to smartly resize it to be
// the perfect size to fit the buttons.
int visible_icon_count =
gtk_chrome_shrinkable_hbox_get_visible_child_count(
GTK_CHROME_SHRINKABLE_HBOX(button_hbox_.get()));
AnimateToShowNIcons(visible_icon_count);
model_->SetVisibleIconCount(visible_icon_count);
return FALSE;
}
gboolean BrowserActionsToolbarGtk::OnGripperButtonPress(
GtkWidget* gripper, GdkEventButton* event) {
resize_animation_.Reset();
return FALSE;
}
gboolean BrowserActionsToolbarGtk::OnOverflowButtonPress(
GtkWidget* overflow, GdkEventButton* event) {
overflow_menu_model_.reset(new SimpleMenuModel(this));
int visible_icon_count =
gtk_chrome_shrinkable_hbox_get_visible_child_count(
GTK_CHROME_SHRINKABLE_HBOX(button_hbox_.get()));
for (int i = visible_icon_count; i < button_count(); ++i) {
int model_index = i;
if (profile_->IsOffTheRecord())
model_index = model_->IncognitoIndexToOriginal(i);
const Extension* extension = model_->toolbar_items()[model_index].get();
BrowserActionButton* button = extension_button_map_[extension->id()].get();
overflow_menu_model_->AddItem(model_index, UTF8ToUTF16(extension->name()));
overflow_menu_model_->SetIcon(overflow_menu_model_->GetItemCount() - 1,
button->GetIcon());
// TODO(estade): set the menu item's tooltip.
}
overflow_menu_.reset(new MenuGtk(this, overflow_menu_model_.get()));
signals_.Connect(overflow_menu_->widget(), "button-press-event",
G_CALLBACK(OnOverflowMenuButtonPressThunk), this);
overflow_button_->SetPaintOverride(GTK_STATE_ACTIVE);
overflow_menu_->PopupAsFromKeyEvent(chevron());
return FALSE;
}
gboolean BrowserActionsToolbarGtk::OnOverflowMenuButtonPress(
GtkWidget* overflow, GdkEventButton* event) {
if (event->button != 3)
return FALSE;
GtkWidget* menu_item = GTK_MENU_SHELL(overflow)->active_menu_item;
if (!menu_item)
return FALSE;
int item_index = g_list_index(GTK_MENU_SHELL(overflow)->children, menu_item);
if (item_index == -1) {
NOTREACHED();
return FALSE;
}
item_index += gtk_chrome_shrinkable_hbox_get_visible_child_count(
GTK_CHROME_SHRINKABLE_HBOX(button_hbox_.get()));
if (profile_->IsOffTheRecord())
item_index = model_->IncognitoIndexToOriginal(item_index);
const Extension* extension = model_->toolbar_items()[item_index].get();
BrowserActionButton* button = GetBrowserActionButton(extension);
if (button == NULL) {
NOTREACHED();
return FALSE;
}
MenuGtk* menu = button->GetContextMenu();
if (!menu)
return FALSE;
menu->PopupAsContext(gfx::Point(event->x_root, event->y_root),
event->time);
return TRUE;
}
void BrowserActionsToolbarGtk::OnButtonShowOrHide(GtkWidget* sender) {
if (!resize_animation_.is_animating())
UpdateChevronVisibility();
}