chromium/third_party/blink/renderer/core/paint/paint_layer_clipper.cc

/*
 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
 * reserved.
 *
 * Portions are Copyright (C) 1998 Netscape Communications Corporation.
 *
 * Other contributors:
 *   Robert O'Callahan <[email protected]>
 *   David Baron <[email protected]>
 *   Christian Biesinger <[email protected]>
 *   Randall Jesup <[email protected]>
 *   Roland Mainz <[email protected]>
 *   Josh Soref <[email protected]>
 *   Boris Zbarsky <[email protected]>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 *
 * Alternatively, the contents of this file may be used under the terms
 * of either the Mozilla Public License Version 1.1, found at
 * http://www.mozilla.org/MPL/ (the "MPL") or the GNU General Public
 * License Version 2.0, found at http://www.fsf.org/copyleft/gpl.html
 * (the "GPL"), in which case the provisions of the MPL or the GPL are
 * applicable instead of those above.  If you wish to allow use of your
 * version of this file only under the terms of one of those two
 * licenses (the MPL or the GPL) and not to allow others to use your
 * version of this file under the LGPL, indicate your decision by
 * deletingthe provisions above and replace them with the notice and
 * other provisions required by the MPL or the GPL, as the case may be.
 * If you do not delete the provisions above, a recipient may use your
 * version of this file under any of the LGPL, the MPL or the GPL.
 */

#include "third_party/blink/renderer/core/paint/paint_layer_clipper.h"

#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/frame/settings.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/paint/compositing/compositing_reason_finder.h"
#include "third_party/blink/renderer/core/paint/object_paint_properties.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"
#include "third_party/blink/renderer/core/paint/paint_layer_scrollable_area.h"
#include "third_party/blink/renderer/platform/graphics/paint/geometry_mapper.h"

namespace blink {

static bool HasNonVisibleOverflow(const PaintLayer& layer) { … }

bool ClipRectsContext::ShouldRespectRootLayerClip() const { … }

PaintLayerClipper::PaintLayerClipper(const PaintLayer* layer) : … { … }

void PaintLayerClipper::CalculateRects(const ClipRectsContext& context,
                                       const FragmentData& fragment_data,
                                       PhysicalOffset& layer_offset,
                                       ClipRect& background_rect,
                                       ClipRect& foreground_rect) const { … }

void PaintLayerClipper::CalculateBackgroundClipRectInternal(
    const ClipRectsContext& context,
    const FragmentData& fragment_data,
    ShouldRespectOverflowClipType should_apply_self_overflow_clip,
    ClipRect& output) const { … }

PhysicalRect PaintLayerClipper::LocalVisualRect(
    const ClipRectsContext& context) const { … }

void PaintLayerClipper::CalculateBackgroundClipRect(
    const ClipRectsContext& context,
    ClipRect& output) const { … }

bool PaintLayerClipper::ShouldClipOverflowAlongEitherAxis(
    const ClipRectsContext& context) const { … }

}  // namespace blink