src/content/common/cursors/webcursor_win.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/logging.h"
   6 #include "base/pickle.h"
   7 #include "content/common/cursors/webcursor.h"
   8 #include "grit/ui_unscaled_resources.h"
   9 #include "third_party/WebKit/public/platform/WebCursorInfo.h"
  10 #include "third_party/skia/include/core/SkBitmap.h"
  11 #include "ui/gfx/icon_util.h"
  12
  13 using blink::WebCursorInfo;
  14
  15 static LPCWSTR ToCursorID(WebCursorInfo::Type type) {
  16   switch (type) {
  17     case WebCursorInfo::TypePointer:
  18       return IDC_ARROW;
  19     case WebCursorInfo::TypeCross:
  20       return IDC_CROSS;
  21     case WebCursorInfo::TypeHand:
  22       return IDC_HAND;
  23     case WebCursorInfo::TypeIBeam:
  24       return IDC_IBEAM;
  25     case WebCursorInfo::TypeWait:
  26       return IDC_WAIT;
  27     case WebCursorInfo::TypeHelp:
  28       return IDC_HELP;
  29     case WebCursorInfo::TypeEastResize:
  30       return IDC_SIZEWE;
  31     case WebCursorInfo::TypeNorthResize:
  32       return IDC_SIZENS;
  33     case WebCursorInfo::TypeNorthEastResize:
  34       return IDC_SIZENESW;
  35     case WebCursorInfo::TypeNorthWestResize:
  36       return IDC_SIZENWSE;
  37     case WebCursorInfo::TypeSouthResize:
  38       return IDC_SIZENS;
  39     case WebCursorInfo::TypeSouthEastResize:
  40       return IDC_SIZENWSE;
  41     case WebCursorInfo::TypeSouthWestResize:
  42       return IDC_SIZENESW;
  43     case WebCursorInfo::TypeWestResize:
  44       return IDC_SIZEWE;
  45     case WebCursorInfo::TypeNorthSouthResize:
  46       return IDC_SIZENS;
  47     case WebCursorInfo::TypeEastWestResize:
  48       return IDC_SIZEWE;
  49     case WebCursorInfo::TypeNorthEastSouthWestResize:
  50       return IDC_SIZENESW;
  51     case WebCursorInfo::TypeNorthWestSouthEastResize:
  52       return IDC_SIZENWSE;
  53     case WebCursorInfo::TypeColumnResize:
  54       return MAKEINTRESOURCE(IDC_COLRESIZE);
  55     case WebCursorInfo::TypeRowResize:
  56       return MAKEINTRESOURCE(IDC_ROWRESIZE);
  57     case WebCursorInfo::TypeMiddlePanning:
  58       return MAKEINTRESOURCE(IDC_PAN_MIDDLE);
  59     case WebCursorInfo::TypeEastPanning:
  60       return MAKEINTRESOURCE(IDC_PAN_EAST);
  61     case WebCursorInfo::TypeNorthPanning:
  62       return MAKEINTRESOURCE(IDC_PAN_NORTH);
  63     case WebCursorInfo::TypeNorthEastPanning:
  64       return MAKEINTRESOURCE(IDC_PAN_NORTH_EAST);
  65     case WebCursorInfo::TypeNorthWestPanning:
  66       return MAKEINTRESOURCE(IDC_PAN_NORTH_WEST);
  67     case WebCursorInfo::TypeSouthPanning:
  68       return MAKEINTRESOURCE(IDC_PAN_SOUTH);
  69     case WebCursorInfo::TypeSouthEastPanning:
  70       return MAKEINTRESOURCE(IDC_PAN_SOUTH_EAST);
  71     case WebCursorInfo::TypeSouthWestPanning:
  72       return MAKEINTRESOURCE(IDC_PAN_SOUTH_WEST);
  73     case WebCursorInfo::TypeWestPanning:
  74       return MAKEINTRESOURCE(IDC_PAN_WEST);
  75     case WebCursorInfo::TypeMove:
  76       return IDC_SIZEALL;
  77     case WebCursorInfo::TypeVerticalText:
  78       return MAKEINTRESOURCE(IDC_VERTICALTEXT);
  79     case WebCursorInfo::TypeCell:
  80       return MAKEINTRESOURCE(IDC_CELL);
  81     case WebCursorInfo::TypeContextMenu:
  82       return MAKEINTRESOURCE(IDC_ARROW);
  83     case WebCursorInfo::TypeAlias:
  84       return MAKEINTRESOURCE(IDC_ALIAS);
  85     case WebCursorInfo::TypeProgress:
  86       return IDC_APPSTARTING;
  87     case WebCursorInfo::TypeNoDrop:
  88       return IDC_NO;
  89     case WebCursorInfo::TypeCopy:
  90       return MAKEINTRESOURCE(IDC_COPYCUR);
  91     case WebCursorInfo::TypeNone:
  92       return MAKEINTRESOURCE(IDC_CURSOR_NONE);
  93     case WebCursorInfo::TypeNotAllowed:
  94       return IDC_NO;
  95     case WebCursorInfo::TypeZoomIn:
  96       return MAKEINTRESOURCE(IDC_ZOOMIN);
  97     case WebCursorInfo::TypeZoomOut:
  98       return MAKEINTRESOURCE(IDC_ZOOMOUT);
  99     case WebCursorInfo::TypeGrab:
 100       return MAKEINTRESOURCE(IDC_HAND_GRAB);
 101     case WebCursorInfo::TypeGrabbing:
 102       return MAKEINTRESOURCE(IDC_HAND_GRABBING);
 103   }
 104   NOTREACHED();
 105   return NULL;
 106 }
 107
 108 static bool IsSystemCursorID(LPCWSTR cursor_id) {
 109   return cursor_id >= IDC_ARROW;  // See WinUser.h
 110 }
 111
 112 namespace content {
 113
 114 HCURSOR WebCursor::GetCursor(HINSTANCE module_handle){
 115   if (!IsCustom()) {
 116     const wchar_t* cursor_id =
 117         ToCursorID(static_cast<WebCursorInfo::Type>(type_));
 118
 119     if (IsSystemCursorID(cursor_id))
 120       module_handle = NULL;
 121
 122     return LoadCursor(module_handle, cursor_id);
 123   }
 124
 125   if (custom_cursor_) {
 126     DCHECK(external_cursor_ == NULL);
 127     return custom_cursor_;
 128   }
 129
 130   if (external_cursor_)
 131     return external_cursor_;
 132
 133   custom_cursor_ =
 134       IconUtil::CreateCursorFromDIB(
 135           custom_size_,
 136           hotspot_,
 137           !custom_data_.empty() ? &custom_data_[0] : NULL,
 138           custom_data_.size());
 139   return custom_cursor_;
 140 }
 141
 142 gfx::NativeCursor WebCursor::GetNativeCursor() {
 143   return GetCursor(NULL);
 144 }
 145
 146 void WebCursor::InitPlatformData() {
 147   custom_cursor_ = NULL;
 148 }
 149
 150 bool WebCursor::SerializePlatformData(Pickle* pickle) const {
 151   // There are some issues with converting certain HCURSORS to bitmaps. The
 152   // HCURSOR being a user object can be marshaled as is.
 153   // HCURSORs are always 32 bits on Windows, even on 64 bit systems.
 154   return pickle->WriteUInt32(reinterpret_cast<uint32>(external_cursor_));
 155 }
 156
 157 bool WebCursor::DeserializePlatformData(PickleIterator* iter) {
 158   return iter->ReadUInt32(reinterpret_cast<uint32*>(&external_cursor_));
 159 }
 160
 161 bool WebCursor::IsPlatformDataEqual(const WebCursor& other) const {
 162   if (!IsCustom())
 163     return true;
 164
 165   return (external_cursor_ == other.external_cursor_);
 166 }
 167
 168 void WebCursor::CopyPlatformData(const WebCursor& other) {
 169   external_cursor_ = other.external_cursor_;
 170   // The custom_cursor_ member will be initialized to a HCURSOR the next time
 171   // the GetCursor member function is invoked on this WebCursor instance. The
 172   // cursor is created using the data in the custom_data_ vector.
 173   custom_cursor_ = NULL;
 174 }
 175
 176 void WebCursor::CleanupPlatformData() {
 177   external_cursor_ = NULL;
 178
 179   if (custom_cursor_) {
 180     DestroyIcon(custom_cursor_);
 181     custom_cursor_ = NULL;
 182   }
 183 }
 184
 185 }  // namespace content