C++ WebFrame::nextSibling方法代码示例

static string dumpFramesAsPrintedText(WebFrame* frame, bool recursive)
{
    string result;

    // Cannot do printed format for anything other than HTML
    if (!frame->document().isHTMLDocument())
        return string();

    // Add header for all but the main frame. Skip empty frames.
    if (frame->parent() && !frame->document().documentElement().isNull()) {
        result.append("\n--------\nFrame: '");
        result.append(frame->name().utf8().data());
        result.append("'\n--------\n");
    }

    result.append(frame->renderTreeAsText(WebFrame::RenderAsTextPrinting).utf8());
    result.append("\n");

    if (recursive) {
        for (WebFrame* child = frame->firstChild(); child; child = child->nextSibling())
            result.append(dumpFramesAsPrintedText(child, recursive));
    }

    return result;
}

ALWAYS_INLINE void WebFrame::traceFramesImpl(VisitorDispatcher visitor, WebFrame* frame)
{
    ASSERT(frame);
    traceFrame(visitor, frame->m_parent);
    for (WebFrame* child = frame->firstChild(); child; child = child->nextSibling())
        traceFrame(visitor, child);
    // m_opener is a weak reference.
    frame->m_openedFrameTracker->traceFrames(visitor);
}

static void dumpFrameScrollPosition(WebFrame* frame, bool recursive)
{
    WebSize offset = frame->scrollOffset();
    if (offset.width > 0 || offset.height > 0) {
        if (frame->parent())
            printf("frame '%s' ", frame->name().utf8().data());
        printf("scrolled to %d,%d\n", offset.width, offset.height);
    }

    if (!recursive)
        return;
    for (WebFrame* child = frame->firstChild(); child; child = child->nextSibling())
        dumpFrameScrollPosition(child, recursive);
}

void TouchActionTest::runIFrameTest(std::string file) {
  TouchActionTrackingWebViewClient client;

  WebView* webView = setupTest(file, client);
  WebFrame* curFrame = webView->mainFrame()->firstChild();
  ASSERT_TRUE(curFrame);

  for (; curFrame; curFrame = curFrame->nextSibling()) {
    // Oilpan: see runTouchActionTest() comment why these are persistent
    // references.
    Persistent<Document> contentDoc =
        static_cast<Document*>(curFrame->document());
    runTestOnTree(contentDoc.get(), webView, client);
  }

  // Explicitly reset to break dependency on locally scoped client.
  m_webViewHelper.reset();
}

void TextFinder::updateFindMatchRects() {
  IntSize currentContentsSize = ownerFrame().contentsSize();
  if (m_contentsSizeForCurrentFindMatchRects != currentContentsSize) {
    m_contentsSizeForCurrentFindMatchRects = currentContentsSize;
    m_findMatchRectsAreValid = false;
  }

  size_t deadMatches = 0;
  for (FindMatch& match : m_findMatchesCache) {
    if (!match.m_range->boundaryPointsValid() ||
        !match.m_range->startContainer()->isConnected())
      match.m_rect = FloatRect();
    else if (!m_findMatchRectsAreValid)
      match.m_rect = findInPageRectFromRange(match.m_range.get());

    if (match.m_rect.isEmpty())
      ++deadMatches;
  }

  // Remove any invalid matches from the cache.
  if (deadMatches) {
    HeapVector<FindMatch> filteredMatches;
    filteredMatches.reserveCapacity(m_findMatchesCache.size() - deadMatches);

    for (const FindMatch& match : m_findMatchesCache) {
      if (!match.m_rect.isEmpty())
        filteredMatches.append(match);
    }

    m_findMatchesCache.swap(filteredMatches);
  }

  // Invalidate the rects in child frames. Will be updated later during
  // traversal.
  if (!m_findMatchRectsAreValid)
    for (WebFrame* child = ownerFrame().firstChild(); child;
         child = child->nextSibling())
      toWebLocalFrameImpl(child)->ensureTextFinder().m_findMatchRectsAreValid =
          false;

  m_findMatchRectsAreValid = true;
}

static string dumpFramesAsText(WebFrame* frame, bool recursive)
{
    string result;

    // Add header for all but the main frame. Skip empty frames.
    if (frame->parent() && !frame->document().documentElement().isNull()) {
        result.append("\n--------\nFrame: '");
        result.append(frame->name().utf8().data());
        result.append("'\n--------\n");
    }

    result.append(dumpDocumentText(frame));
    result.append("\n");

    if (recursive) {
        for (WebFrame* child = frame->firstChild(); child; child = child->nextSibling())
            result.append(dumpFramesAsText(child, recursive));
    }

    return result;
}

void TextFinder::updateFindMatchRects()
{
    IntSize currentContentsSize = m_ownerFrame.contentsSize();
    if (m_contentsSizeForCurrentFindMatchRects != currentContentsSize) {
        m_contentsSizeForCurrentFindMatchRects = currentContentsSize;
        m_findMatchRectsAreValid = false;
    }

    size_t deadMatches = 0;
    for (Vector<FindMatch>::iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) {
        if (!it->m_range->boundaryPointsValid() || !it->m_range->startContainer()->inDocument())
            it->m_rect = FloatRect();
        else if (!m_findMatchRectsAreValid)
            it->m_rect = findInPageRectFromRange(it->m_range.get());

        if (it->m_rect.isEmpty())
            ++deadMatches;
    }

    // Remove any invalid matches from the cache.
    if (deadMatches) {
        WillBeHeapVector<FindMatch> filteredMatches;
        filteredMatches.reserveCapacity(m_findMatchesCache.size() - deadMatches);

        for (Vector<FindMatch>::const_iterator it = m_findMatchesCache.begin(); it != m_findMatchesCache.end(); ++it) {
            if (!it->m_rect.isEmpty())
                filteredMatches.append(*it);
        }

        m_findMatchesCache.swap(filteredMatches);
    }

    // Invalidate the rects in child frames. Will be updated later during traversal.
    if (!m_findMatchRectsAreValid)
        for (WebFrame* child = m_ownerFrame.firstChild(); child; child = child->nextSibling())
            toWebLocalFrameImpl(child)->ensureTextFinder().m_findMatchRectsAreValid = false;

    m_findMatchRectsAreValid = true;
}