gecko-dev/layout/base/nsDisplayItemTypes.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=2 sw=2 et tw=78:
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michael Ventnor <m.ventnor@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK *****
*/
/**
* It's useful to be able to dynamically check the type of certain items.
* Every subclass of nsDisplayItem must have a new type added here for the purposes
* of easy comparison and matching of items in different display lists.
*
* This is #included inside nsDisplayItem.
*/
enum Type {
TYPE_ALT_FEEDBACK = 1,
TYPE_BACKGROUND,
TYPE_BORDER,
TYPE_BOX_SHADOW_OUTER,
TYPE_BOX_SHADOW_INNER,
TYPE_BULLET,
TYPE_BUTTON_BORDER_BACKGROUND,
TYPE_BUTTON_BOX_SHADOW_OUTER,
TYPE_BUTTON_FOREGROUND,
TYPE_CANVAS,
TYPE_CANVAS_BACKGROUND,
TYPE_CANVAS_FOCUS,
TYPE_CARET,
TYPE_CHECKED_CHECKBOX,
TYPE_CHECKED_RADIOBUTTON,
TYPE_CLIP,
TYPE_CLIP_ROUNDED_RECT,
TYPE_COLUMN_RULE,
TYPE_COMBOBOX_FOCUS,
TYPE_EVENT_RECEIVER,
TYPE_FIELDSET_BORDER_BACKGROUND,
TYPE_FORCEPAINTONSCROLL,
TYPE_FRAMESET_BORDER,
TYPE_FRAMESET_BLANK,
TYPE_HEADER_FOOTER,
TYPE_IMAGE,
TYPE_LIST_FOCUS,
TYPE_OPACITY,
TYPE_OPTION_EVENT_GRABBER,
TYPE_OUTLINE,
TYPE_OWN_LAYER,
TYPE_PAGE_CONTENT,
TYPE_PAGE_SEQUENCE,
TYPE_PLUGIN,
TYPE_PLUGIN_READBACK,
TYPE_PRINT_PLUGIN,
TYPE_REMOTE,
TYPE_REMOTE_SHADOW,
TYPE_SCROLL_LAYER,
TYPE_SCROLL_INFO_LAYER,
TYPE_SELECTION_OVERLAY,
TYPE_SOLID_COLOR,
TYPE_SVG_EFFECTS,
TYPE_SVG_EVENT_RECEIVER,
TYPE_TABLE_CELL_BACKGROUND,
TYPE_TABLE_CELL_SELECTION,
TYPE_TABLE_ROW_BACKGROUND,
TYPE_TABLE_ROW_GROUP_BACKGROUND,
TYPE_TABLE_BORDER_BACKGROUND,
TYPE_TEXT,
TYPE_TEXT_DECORATION,
TYPE_TEXT_OVERFLOW,
TYPE_TEXT_SHADOW,
TYPE_TRANSFORM,
TYPE_VIDEO,
TYPE_WRAP_LIST,
TYPE_ZOOM,
TYPE_EXCLUDE_GLASS_FRAME,
#if defined(MOZ_REFLOW_PERF_DSP) && defined(MOZ_REFLOW_PERF)
TYPE_REFLOW_COUNT,
#endif
#ifdef MOZ_XUL
TYPE_XUL_EVENT_REDIRECTOR,
TYPE_XUL_GROUP_BACKGROUND,
TYPE_XUL_IMAGE,
TYPE_XUL_TEXT_BOX,
TYPE_XUL_TREE_BODY,
TYPE_XUL_TREE_COL_SPLITTER_TARGET,
#ifdef DEBUG_LAYOUT
TYPE_XUL_DEBUG,
#endif
#endif
TYPE_MATHML_BAR,
TYPE_MATHML_CHAR_BACKGROUND,
TYPE_MATHML_CHAR_FOREGROUND,
TYPE_MATHML_ERROR,
TYPE_MATHML_MENCLOSE_NOTATION,
TYPE_MATHML_SELECTION_RECT,
TYPE_MATHML_SLASH,
#ifdef NS_DEBUG
TYPE_MATHML_BOUNDING_METRICS,
TYPE_MATHML_CHAR_DEBUG,
#endif
#ifdef NS_DEBUG
TYPE_DEBUG_BORDER,
TYPE_DEBUG_IMAGE_MAP,
TYPE_DEBUG_PLACEHOLDER,
TYPE_EVENT_TARGET_BORDER,
#endif
TYPE_MAX
};
enum {
// Number of bits needed to represent all types
TYPE_BITS = 8
};