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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 "ui/views/button_drag_utils.h"
#include "base/utf_string_conversions.h"
#include "googleurl/src/gurl.h"
#include "grit/ui_resources.h"
#include "ui/base/dragdrop/drag_utils.h"
#include "ui/base/dragdrop/os_exchange_data.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/image/image.h"
#include "ui/views/controls/button/text_button.h"
#include "ui/views/drag_utils.h"
namespace button_drag_utils {
// Maximum width of the link drag image in pixels.
static const int kLinkDragImageMaxWidth = 200;
void SetURLAndDragImage(const GURL& url,
const string16& title,
const gfx::ImageSkia& icon,
ui::OSExchangeData* data,
views::Widget* widget) {
DCHECK(url.is_valid() && data);
data->SetURL(url, title);
// Create a button to render the drag image for us.
views::TextButton button(NULL,
title.empty() ? UTF8ToUTF16(url.spec()) : title);
button.set_max_width(kLinkDragImageMaxWidth);
if (icon.isNull()) {
button.SetIcon(*ui::ResourceBundle::GetSharedInstance().GetImageNamed(
IDR_DEFAULT_FAVICON).ToImageSkia());
} else {
button.SetIcon(icon);
}
gfx::Size prefsize = button.GetPreferredSize();
button.SetBounds(0, 0, prefsize.width(), prefsize.height());
// Render the image.
scoped_ptr<gfx::Canvas> canvas(
views::GetCanvasForDragImage(widget, prefsize));
button.PaintButton(canvas.get(), views::TextButton::PB_FOR_DRAG);
drag_utils::SetDragImageOnDataObject(*canvas, prefsize,
gfx::Point(prefsize.width() / 2, prefsize.height() / 2), data);
}
} // namespace button_drag_utils
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