PageOverlays: Remove PageOverlayList

Source/web/PageOverlayList.cpp

-/*
- * Copyright (C) 2011 Google 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 GOOGLE 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 GOOGLE 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 "web/PageOverlayList.h"
-
-#include "public/web/WebPageOverlay.h"
-#include "web/PageOverlay.h"
-#include "web/WebViewImpl.h"
-
-namespace blink {
-
-PassOwnPtr<PageOverlayList> PageOverlayList::create(WebViewImpl* viewImpl)
-{
-    return adoptPtr(new PageOverlayList(viewImpl));
-}
-
-PageOverlayList::PageOverlayList(WebViewImpl* viewImpl)
-    : m_viewImpl(viewImpl)
-{
-}
-
-PageOverlayList::~PageOverlayList()
-{
-}
-
-bool PageOverlayList::add(WebPageOverlay* overlay, int zOrder)
-{
-    bool added = false;
-    size_t index = find(overlay);
-    if (index == WTF::kNotFound) {
-        OwnPtr<PageOverlay> pageOverlay = PageOverlay::create(m_viewImpl, overlay);
-        m_pageOverlays.append(pageOverlay.release());
-        index = m_pageOverlays.size() - 1;
-        added = true;
-    }
-
-    PageOverlay* pageOverlay = m_pageOverlays[index].get();
-    pageOverlay->setZOrder(zOrder);
-
-    // Adjust page overlay list order based on their z-order numbers. We first
-    // check if we need to move the overlay up and do so if needed. Otherwise,
-    // check if we need to move it down.
-    bool zOrderChanged = false;
-    for (size_t i = index; i + 1 < m_pageOverlays.size(); ++i) {
-        if (m_pageOverlays[i]->zOrder() >= m_pageOverlays[i + 1]->zOrder()) {
-            m_pageOverlays[i].swap(m_pageOverlays[i + 1]);
-            zOrderChanged = true;
-        }
-    }
-
-    if (!zOrderChanged) {
-        for (size_t i = index; i >= 1; --i) {
-            if (m_pageOverlays[i]->zOrder() < m_pageOverlays[i - 1]->zOrder()) {
-                m_pageOverlays[i].swap(m_pageOverlays[i - 1]);
-                zOrderChanged = true;
-            }
-        }
-    }
-
-    // If we did move the overlay, that means z-order is changed and we need to
-    // update overlay layers' z-order. Otherwise, just update current overlay.
-    if (zOrderChanged) {
-        for (size_t i = 0; i < m_pageOverlays.size(); ++i)
-            m_pageOverlays[i]->clear();
-        update();
-    } else
-        pageOverlay->update();
-
-    return added;
-}
-
-bool PageOverlayList::remove(WebPageOverlay* overlay)
-{
-    size_t index = find(overlay);
-    if (index == WTF::kNotFound)
-        return false;
-
-    m_pageOverlays[index]->clear();
-    m_pageOverlays.remove(index);
-    return true;
-}
-
-void PageOverlayList::update()
-{
-    for (size_t i = 0; i < m_pageOverlays.size(); ++i)
-        m_pageOverlays[i]->update();
-}
-
-void PageOverlayList::paintWebFrame(GraphicsContext& gc)
-{
-    // If accelerated compositing is active, page overlays are painted through
-    // their corresponding GraphicsLayer.
-    ASSERT(!m_viewImpl->isAcceleratedCompositingActive());
-    for (size_t i = 0; i < m_pageOverlays.size(); ++i)
-        m_pageOverlays[i]->paintWebFrame(gc);
-}
-
-size_t PageOverlayList::find(WebPageOverlay* overlay)
-{
-    for (size_t i = 0; i < m_pageOverlays.size(); ++i) {
-        if (m_pageOverlays[i]->overlay() == overlay)
-            return i;
-    }
-    return WTF::kNotFound;
-}
-
-size_t PageOverlayList::findGraphicsLayer(GraphicsLayer* layer)
-{
-    for (size_t i = 0; i < m_pageOverlays.size(); ++i) {
-        if (m_pageOverlays[i]->graphicsLayer() == layer)
-            return i;
-    }
-    return WTF::kNotFound;
-}
-
-GraphicsLayer* PageOverlayList::graphicsLayerForTesting() const
-{
-    if (m_pageOverlays.isEmpty())
-        return nullptr;
-    return m_pageOverlays[0]->graphicsLayer();
-}
-
-} // namespace blink