Move most of ui/views/drag_utils to ui/base/dragdrop so it can be used outside of views. I tried to…

ui/views/drag_utils.cc

-// Copyright (c) 2011 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/drag_utils.h"
-
-#include "base/file_util.h"
-#include "base/logging.h"
-#include "base/utf_string_conversions.h"
-#include "googleurl/src/gurl.h"
-#include "grit/ui_resources.h"
-#include "ui/base/dragdrop/os_exchange_data.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/canvas_skia.h"
-#include "ui/gfx/font.h"
-#include "ui/views/controls/button/text_button.h"
-
-namespace drag_utils {
-
-// Maximum width of the link drag image in pixels.
-static const int kLinkDragImageMaxWidth = 200;
-static const int kLinkDragImageVPadding = 3;
-
-// File dragging pixel measurements
-static const int kFileDragImageMaxWidth = 200;
-static const SkColor kFileDragImageTextColor = SK_ColorBLACK;
-
-void SetURLAndDragImage(const GURL& url,
-                        const string16& title,
-                        const SkBitmap& icon,
-                        ui::OSExchangeData* data) {
-  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(*ResourceBundle::GetSharedInstance().GetBitmapNamed(
-                   IDR_DEFAULT_FAVICON));
-  } else {
-    button.SetIcon(icon);
-  }
-  gfx::Size prefsize = button.GetPreferredSize();
-  button.SetBounds(0, 0, prefsize.width(), prefsize.height());
-
-  // Render the image.
-  gfx::CanvasSkia canvas(prefsize, false);
-  button.PaintButton(&canvas, views::TextButton::PB_FOR_DRAG);
-  SetDragImageOnDataObject(canvas, prefsize,
-      gfx::Point(prefsize.width() / 2, prefsize.height() / 2), data);
-}
-
-void CreateDragImageForFile(const FilePath& file_name,
-                            const SkBitmap* icon,
-                            ui::OSExchangeData* data_object) {
-  DCHECK(icon);
-  DCHECK(data_object);
-
-  // Set up our text portion
-  ResourceBundle& rb = ResourceBundle::GetSharedInstance();
-  gfx::Font font = rb.GetFont(ResourceBundle::BaseFont);
-
-  const int width = kFileDragImageMaxWidth;
-  // Add +2 here to allow room for the halo.
-  const int height = font.GetHeight() + icon->height() +
-                     kLinkDragImageVPadding + 2;
-  gfx::CanvasSkia canvas(gfx::Size(width, height), false /* translucent */);
-
-  // Paint the icon.
-  canvas.DrawBitmapInt(*icon, (width - icon->width()) / 2, 0);
-
-  string16 name = file_name.BaseName().LossyDisplayName();
-#if defined(OS_WIN)
-  // Paint the file name. We inset it one pixel to allow room for the halo.
-  canvas.DrawStringWithHalo(name, font, kFileDragImageTextColor, SK_ColorWHITE,
-                            1, icon->height() + kLinkDragImageVPadding + 1,
-                            width - 2, font.GetHeight(),
-                            gfx::Canvas::TEXT_ALIGN_CENTER);
-#else
-  canvas.DrawStringInt(name, font, kFileDragImageTextColor,
-                       0, icon->height() + kLinkDragImageVPadding,
-                       width, font.GetHeight(), gfx::Canvas::TEXT_ALIGN_CENTER);
-#endif
-
-  SetDragImageOnDataObject(canvas, gfx::Size(width, height),
-                           gfx::Point(width / 2, kLinkDragImageVPadding),
-                           data_object);
-}
-
-void SetDragImageOnDataObject(const gfx::Canvas& canvas,
-                              const gfx::Size& size,
-                              const gfx::Point& cursor_offset,
-                              ui::OSExchangeData* data_object) {
-  SetDragImageOnDataObject(
-      canvas.AsCanvasSkia()->ExtractBitmap(), size, cursor_offset, data_object);
-}
-
-}  // namespace drag_utils