/*
 * Copyright (C) 2014 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "SelectionGeometryGatherer.h"

#if ENABLE(SERVICE_CONTROLS)

#include "Editor.h"
#include "EditorClient.h"
#include "Frame.h"
#include "ImageOverlayController.h"
#include "RenderView.h"
#include "ServicesOverlayController.h"

namespace WebCore {

SelectionGeometryGatherer::SelectionGeometryGatherer(RenderView& renderView)
    : m_renderView(renderView)
    , m_isTextOnly(true)
{
}

void SelectionGeometryGatherer::addQuad(RenderLayerModelObject *repaintContainer, const FloatQuad& quad)
{
    if (!quad.boundingBoxIsEmpty())
        m_quads.append(repaintContainer ? repaintContainer->localToAbsoluteQuad(quad) : quad);
}

void SelectionGeometryGatherer::addGapRects(RenderLayerModelObject *repaintContainer, const GapRects& rects)
{
    if (repaintContainer) {
        GapRects absoluteGapRects;
        absoluteGapRects.uniteLeft(LayoutRect(repaintContainer->localToAbsoluteQuad(FloatQuad(rects.left())).boundingBox()));
        absoluteGapRects.uniteCenter(LayoutRect(repaintContainer->localToAbsoluteQuad(FloatQuad(rects.center())).boundingBox()));
        absoluteGapRects.uniteRight(LayoutRect(repaintContainer->localToAbsoluteQuad(FloatQuad(rects.right())).boundingBox()));
        m_gapRects.append(absoluteGapRects);
    } else
        m_gapRects.append(rects);
}

SelectionGeometryGatherer::Notifier::Notifier(SelectionGeometryGatherer& gatherer)
    : m_gatherer(gatherer)
{
}

SelectionGeometryGatherer::Notifier::~Notifier()
{
    auto page = m_gatherer.m_renderView.view().frame().page();
    if (!page)
        return;

    page->servicesOverlayController().selectionRectsDidChange(m_gatherer.boundingRects(), m_gatherer.m_gapRects, m_gatherer.isTextOnly());
    page->imageOverlayController().selectionQuadsDidChange(m_gatherer.m_renderView.frame(), m_gatherer.m_quads);
}

Vector<LayoutRect> SelectionGeometryGatherer::boundingRects() const
{
    return m_quads.map([](auto& quad) {
        return LayoutRect { quad.boundingBox() };
    });
}

std::unique_ptr<SelectionGeometryGatherer::Notifier> SelectionGeometryGatherer::clearAndCreateNotifier()
{
    m_quads.clear();
    m_gapRects.clear();
    m_isTextOnly = true;

    return makeUnique<Notifier>(*this);
}

} // namespace WebCore

#endif // ENABLE(SERVICE_CONTROLS)