Eliminate CursorChromium's dependency on webkit/glue.

Also modified WidgetChromium to use ChromiumBridge instead of talking to ChromeClientChromium.  I want to eliminate that fake interface in favor of just having our code talk directly to ChromeClientImpl, but that means a dependency on webkit/glue, so I needed to use ChromiumBridge.  Long-term, I'd like to propose changes upstream to HostWindow and ChromeClient to avoid this usage of ChromiumBridge.

The most impactful part of this CL is the change to move the enumeration of cursor types from WebCursor to PlatformCursor.  This means that WebCursor consumers no longer have access to the type enumeration.  I replaced that with helper functions on WebCursor.  I think the result not only achieves the goal of breaking CursorChromium's dependency on webkit/glue but is also much cleaner.

R=iyengar,eseidel
Review URL: http://codereview.chromium.org/9072

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@4846 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 203 insertions, 0 deletions

diff --git a/webkit/glue/webcursor_win.cc b/webkit/glue/webcursor_win.cc
new file mode 100644
index 0000000..8671367
--- /dev/null
+++ b/webkit/glue/webcursor_win.cc
@@ -0,0 +1,203 @@
+// Copyright (c) 2008 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 "config.h"
+#include "NativeImageSkia.h"
+#include "PlatformCursor.h"
+
+#undef LOG
+#include "base/gfx/gdi_util.h"
+#include "base/logging.h"
+#include "skia/include/SkBitmap.h"
+#include "webkit/glue/webcursor.h"
+#include "webkit/glue/webkit_resources.h"
+
+using WebCore::PlatformCursor;
+
+static LPCWSTR ToCursorID(PlatformCursor::Type type) {
+  switch (type) {
+    case PlatformCursor::typePointer:
+      return IDC_ARROW;
+    case PlatformCursor::typeCross:
+      return IDC_CROSS;
+    case PlatformCursor::typeHand:
+      return IDC_HAND;
+    case PlatformCursor::typeIBeam:
+      return IDC_IBEAM;
+    case PlatformCursor::typeWait:
+      return IDC_WAIT;
+    case PlatformCursor::typeHelp:
+      return IDC_HELP;
+    case PlatformCursor::typeEastResize:
+      return IDC_SIZEWE;
+    case PlatformCursor::typeNorthResize:
+      return IDC_SIZENS;
+    case PlatformCursor::typeNorthEastResize:
+      return IDC_SIZENESW;
+    case PlatformCursor::typeNorthWestResize:
+      return IDC_SIZENWSE;
+    case PlatformCursor::typeSouthResize:
+      return IDC_SIZENS;
+    case PlatformCursor::typeSouthEastResize:
+      return IDC_SIZENWSE;
+    case PlatformCursor::typeSouthWestResize:
+      return IDC_SIZENESW;
+    case PlatformCursor::typeWestResize:
+      return IDC_SIZEWE;
+    case PlatformCursor::typeNorthSouthResize:
+      return IDC_SIZENS;
+    case PlatformCursor::typeEastWestResize:
+      return IDC_SIZEWE;
+    case PlatformCursor::typeNorthEastSouthWestResize:
+      return IDC_SIZENESW;
+    case PlatformCursor::typeNorthWestSouthEastResize:
+      return IDC_SIZENWSE;
+    case PlatformCursor::typeColumnResize:
+      return MAKEINTRESOURCE(IDC_COLRESIZE);
+    case PlatformCursor::typeRowResize:
+      return MAKEINTRESOURCE(IDC_ROWRESIZE);
+    case PlatformCursor::typeMiddlePanning:
+      return MAKEINTRESOURCE(IDC_PAN_MIDDLE);
+    case PlatformCursor::typeEastPanning:
+      return MAKEINTRESOURCE(IDC_PAN_EAST);
+    case PlatformCursor::typeNorthPanning:
+      return MAKEINTRESOURCE(IDC_PAN_NORTH);
+    case PlatformCursor::typeNorthEastPanning:
+      return MAKEINTRESOURCE(IDC_PAN_NORTH_EAST);
+    case PlatformCursor::typeNorthWestPanning:
+      return MAKEINTRESOURCE(IDC_PAN_NORTH_WEST);
+    case PlatformCursor::typeSouthPanning:
+      return MAKEINTRESOURCE(IDC_PAN_SOUTH);
+    case PlatformCursor::typeSouthEastPanning:
+      return MAKEINTRESOURCE(IDC_PAN_SOUTH_EAST);
+    case PlatformCursor::typeSouthWestPanning:
+      return MAKEINTRESOURCE(IDC_PAN_SOUTH_WEST);
+    case PlatformCursor::typeWestPanning:
+      return MAKEINTRESOURCE(IDC_PAN_WEST);
+    case PlatformCursor::typeMove:
+      return IDC_SIZEALL;
+    case PlatformCursor::typeVerticalText:
+      return MAKEINTRESOURCE(IDC_VERTICALTEXT);
+    case PlatformCursor::typeCell:
+      return MAKEINTRESOURCE(IDC_CELL);
+    case PlatformCursor::typeContextMenu:
+      return MAKEINTRESOURCE(IDC_ARROW);
+    case PlatformCursor::typeAlias:
+      return MAKEINTRESOURCE(IDC_ALIAS);
+    case PlatformCursor::typeProgress:
+      return IDC_APPSTARTING;
+    case PlatformCursor::typeNoDrop:
+      return IDC_NO;
+    case PlatformCursor::typeCopy:
+      return MAKEINTRESOURCE(IDC_COPYCUR);
+    case PlatformCursor::typeNone:
+      return IDC_ARROW;
+    case PlatformCursor::typeNotAllowed:
+      return IDC_NO;
+    case PlatformCursor::typeZoomIn:
+      return MAKEINTRESOURCE(IDC_ZOOMIN);
+    case PlatformCursor::typeZoomOut:
+      return MAKEINTRESOURCE(IDC_ZOOMOUT);
+  }
+  NOTREACHED();
+  return NULL;
+}
+
+static bool IsSystemCursorID(LPCWSTR cursor_id) {
+  return cursor_id >= IDC_ARROW;  // See WinUser.h
+}
+
+static PlatformCursor::Type ToPlatformCursorType(HCURSOR cursor) {
+  static struct {
+    HCURSOR cursor;
+    PlatformCursor::Type type;
+  } kStandardCursors[] = {
+    { LoadCursor(NULL, IDC_ARROW),       PlatformCursor::typePointer },
+    { LoadCursor(NULL, IDC_IBEAM),       PlatformCursor::typeIBeam },
+    { LoadCursor(NULL, IDC_WAIT),        PlatformCursor::typeWait },
+    { LoadCursor(NULL, IDC_CROSS),       PlatformCursor::typeCross },
+    { LoadCursor(NULL, IDC_SIZENWSE),    PlatformCursor::typeNorthWestResize },
+    { LoadCursor(NULL, IDC_SIZENESW),    PlatformCursor::typeNorthEastResize },
+    { LoadCursor(NULL, IDC_SIZEWE),      PlatformCursor::typeEastWestResize },
+    { LoadCursor(NULL, IDC_SIZENS),      PlatformCursor::typeNorthSouthResize },
+    { LoadCursor(NULL, IDC_SIZEALL),     PlatformCursor::typeMove },
+    { LoadCursor(NULL, IDC_NO),          PlatformCursor::typeNotAllowed },
+    { LoadCursor(NULL, IDC_HAND),        PlatformCursor::typeHand },
+    { LoadCursor(NULL, IDC_APPSTARTING), PlatformCursor::typeProgress },
+    { LoadCursor(NULL, IDC_HELP),        PlatformCursor::typeHelp },
+  };
+  for (int i = 0; i < arraysize(kStandardCursors); i++) {
+    if (cursor == kStandardCursors[i].cursor)
+      return kStandardCursors[i].type;
+  }
+  return PlatformCursor::typePointer;
+}
+
+HCURSOR WebCursor::GetCursor(HINSTANCE module_handle) const {
+  if (IsCustom())
+    return NULL;
+
+  LPCWSTR cursor_id = ToCursorID(static_cast<PlatformCursor::Type>(type_));
+
+  if (IsSystemCursorID(cursor_id))
+    module_handle = NULL;
+
+  return LoadCursor(module_handle, cursor_id);
+}
+
+HCURSOR WebCursor::GetCustomCursor() const {
+  if (!IsCustom())
+    return NULL;
+
+  BITMAPINFO cursor_bitmap_info = {0};
+  gfx::CreateBitmapHeader(
+      custom_size_.width(), custom_size_.height(),
+      reinterpret_cast<BITMAPINFOHEADER*>(&cursor_bitmap_info));
+  HDC dc = GetDC(0);
+  HDC workingDC = CreateCompatibleDC(dc);
+  HBITMAP bitmap_handle = CreateDIBSection(
+      dc, &cursor_bitmap_info, DIB_RGB_COLORS, 0, 0, 0);
+  SetDIBits(
+      0, bitmap_handle, 0, custom_size_.height(), &custom_data_[0],
+      &cursor_bitmap_info, DIB_RGB_COLORS);
+
+  HBITMAP old_bitmap = reinterpret_cast<HBITMAP>(
+      SelectObject(workingDC, bitmap_handle));
+  SetBkMode(workingDC, TRANSPARENT);
+  SelectObject(workingDC, old_bitmap);
+
+  HBITMAP mask = CreateBitmap(
+      custom_size_.width(), custom_size_.height(), 1, 1, NULL);
+  ICONINFO ii = {0};
+  ii.fIcon = FALSE;
+  ii.xHotspot = hotspot_.x();
+  ii.yHotspot = hotspot_.y();
+  ii.hbmMask = mask;
+  ii.hbmColor = bitmap_handle;
+
+  HCURSOR cursor_handle = CreateIconIndirect(&ii);
+
+  DeleteObject(mask); 
+  DeleteObject(bitmap_handle); 
+  DeleteDC(workingDC);
+  ReleaseDC(0, dc);
+  return cursor_handle;
+}
+
+void WebCursor::InitFromCursor(HCURSOR cursor) {
+  // TODO(iyengar) Add support for custom cursors.
+  *this = WebCursor(ToPlatformCursorType(cursor));
+}
+
+void WebCursor::SetCustomData(WebCore::Image* image) {
+  WebCore::NativeImagePtr image_ptr = image->nativeImageForCurrentFrame();
+  if (!image_ptr)
+    return;
+
+  SkAutoLockPixels bitmap_lock(*image_ptr);
+  custom_data_.resize(image_ptr->getSize());
+  memcpy(&custom_data_[0], image_ptr->getPixels(), image_ptr->getSize());
+  custom_size_.set_width(image_ptr->width());
+  custom_size_.set_height(image_ptr->height());
+}