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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.
#include "chrome/browser/ui/gtk/action_box_button_gtk.h"
#include <gtk/gtk.h>
#include "base/logging.h"
#include "chrome/browser/extensions/extension_icon_image.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/gtk/custom_button.h"
#include "chrome/browser/ui/gtk/view_id_util.h"
#include "chrome/browser/ui/toolbar/action_box_menu_model.h"
#include "chrome/browser/ui/view_ids.h"
#include "chrome/common/extensions/api/extension_action/action_info.h"
#include "chrome/common/extensions/api/icons/icons_handler.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_constants.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/layout.h"
#include "ui/gfx/gtk_util.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_skia_rep.h"
using extensions::ActionInfo;
using extensions::Extension;
using extensions::IconImage;
namespace {
// This class provides a GtkWidget that shows an Extension's page launcher icon.
// We can't use GtkImage directly because loading the icon from the extension
// must be done asynchronously. The lifetime of this object is tied to its
// GtkWidget, and it will delete itself upon receiving a "destroy" signal from
// the widget.
class ExtensionIcon : public IconImage::Observer {
public:
ExtensionIcon(Profile* profile, const Extension* extension);
GtkWidget* GetWidget();
private:
virtual ~ExtensionIcon() {}
virtual void OnExtensionIconImageChanged(IconImage* image) OVERRIDE;
void UpdateIcon();
CHROMEGTK_CALLBACK_0(ExtensionIcon, void, OnDestroyed);
GtkWidget* image_;
scoped_ptr<IconImage> icon_;
DISALLOW_COPY_AND_ASSIGN(ExtensionIcon);
};
ExtensionIcon::ExtensionIcon(Profile* profile, const Extension* extension)
: image_(NULL) {
const ActionInfo* page_launcher_info =
ActionInfo::GetPageLauncherInfo(extension);
icon_.reset(new IconImage(profile,
extension,
page_launcher_info->default_icon,
extension_misc::EXTENSION_ICON_ACTION,
extensions::IconsInfo::GetDefaultAppIcon(),
this));
UpdateIcon();
}
GtkWidget* ExtensionIcon::GetWidget() {
return image_;
}
void ExtensionIcon::OnExtensionIconImageChanged(IconImage* image) {
DCHECK_EQ(image, icon_.get());
UpdateIcon();
}
void ExtensionIcon::UpdateIcon() {
const gfx::ImageSkiaRep& rep =
icon_->image_skia().GetRepresentation(ui::SCALE_FACTOR_NONE);
GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(rep.sk_bitmap());
if (!image_) {
image_ = gtk_image_new_from_pixbuf(pixbuf);
g_signal_connect(image_, "destroy", G_CALLBACK(OnDestroyedThunk), this);
} else {
gtk_image_set_from_pixbuf(GTK_IMAGE(image_), pixbuf);
}
g_object_unref(pixbuf);
}
void ExtensionIcon::OnDestroyed(GtkWidget* sender) {
DCHECK_EQ(sender, image_);
delete this;
}
} // namespace
ActionBoxButtonGtk::ActionBoxButtonGtk(Browser* browser)
: controller_(browser, this),
browser_(browser) {
button_.reset(new CustomDrawButton(
IDR_ACTION_BOX_BUTTON_NORMAL,
IDR_ACTION_BOX_BUTTON_PRESSED,
IDR_ACTION_BOX_BUTTON_HOVER,
0)); // TODO: disabled?
gtk_widget_set_tooltip_text(widget(),
l10n_util::GetStringUTF8(IDS_TOOLTIP_ACTION_BOX_BUTTON).c_str());
g_signal_connect(widget(), "button-press-event",
G_CALLBACK(OnButtonPressThunk), this);
ViewIDUtil::SetID(widget(), VIEW_ID_ACTION_BOX_BUTTON);
}
ActionBoxButtonGtk::~ActionBoxButtonGtk() {
}
void ActionBoxButtonGtk:: StoppedShowing() {
button_->UnsetPaintOverride();
}
bool ActionBoxButtonGtk::AlwaysShowIconForCmd(int command_id) const {
return true;
}
GtkWidget* ActionBoxButtonGtk::GetImageForCommandId(int command_id) const {
int index = model_->GetIndexOfCommandId(command_id);
if (model_->IsItemExtension(index)) {
const Extension* extension = model_->GetExtensionAt(index);
return (new ExtensionIcon(browser_->profile(), extension))->GetWidget();
}
return GetDefaultImageForCommandId(command_id);
}
GtkWidget* ActionBoxButtonGtk::widget() {
return button_->widget();
}
void ActionBoxButtonGtk::ShowMenu(scoped_ptr<ActionBoxMenuModel> model) {
button_->SetPaintOverride(GTK_STATE_ACTIVE);
model_ = model.Pass();
menu_.reset(new MenuGtk(this, model_.get()));
menu_->PopupForWidget(
button_->widget(),
// The mouse button. This is 1 because currently it can only be generated
// from a mouse click, but if ShowMenu can be called in other situations
// (e.g. other mouse buttons, or without any click at all) then it will
// need to be that button or 0.
1,
gtk_get_current_event_time());
}
gboolean ActionBoxButtonGtk::OnButtonPress(GtkWidget* widget,
GdkEventButton* event) {
if (event->button == 1)
controller_.OnButtonClicked();
return FALSE;
}
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