C++ MarkerList::at方法代码示例

Vector<RenderedDocumentMarker*> DocumentMarkerController::markersFor(Node* node, DocumentMarker::MarkerTypes markerTypes)
{
    Vector<RenderedDocumentMarker*> result;
    MarkerList* list = m_markers.get(node);
    if (!list)
        return result;

    for (size_t i = 0; i < list->size(); ++i) {
        if (markerTypes.contains(list->at(i).type()))
            result.append(&(list->at(i)));
    }

    return result;
}

void DocumentMarkerController::shiftMarkers(Node* node, unsigned startOffset, int delta)
{
    if (!possiblyHasMarkers(DocumentMarker::AllMarkers()))
        return;
    ASSERT(!m_markers.isEmpty());

    MarkerList* list = m_markers.get(node);
    if (!list)
        return;

    bool docDirty = false;
    for (size_t i = 0; i != list->size(); ) {
        RenderedDocumentMarker& marker = list->at(i);
#if PLATFORM(IOS)
        int targetStartOffset = marker.startOffset() + delta;
        int targetEndOffset = marker.endOffset() + delta;
        if (targetStartOffset >= node->maxCharacterOffset() || targetEndOffset <= 0) {
            list->remove(i);
            continue;
        }
#endif
        if (marker.startOffset() >= startOffset) {
            ASSERT((int)marker.startOffset() + delta >= 0);
            marker.shiftOffsets(delta);
            docDirty = true;

            // Marker moved, so previously-computed rendered rectangle is now invalid
            marker.invalidate();
#if !PLATFORM(IOS)
        }
#else
        // FIXME: Inserting text inside a DocumentMarker does not grow the marker.
        // See <https://bugs.webkit.org/show_bug.cgi?id=62504>.
        } else if (marker.endOffset() > startOffset) {

void DocumentMarkerController::repaintMarkers(DocumentMarker::MarkerTypes markerTypes)
{
    if (!possiblyHasMarkers(markerTypes))
        return;
    ASSERT(!m_markers.isEmpty());

    // outer loop: process each markered node in the document
    MarkerMap::iterator end = m_markers.end();
    for (MarkerMap::iterator i = m_markers.begin(); i != end; ++i) {
        Node* node = i->key.get();

        // inner loop: process each marker in the current node
        MarkerList* list = i->value.get();
        bool nodeNeedsRepaint = false;
        for (size_t i = 0; i != list->size(); ++i) {
            DocumentMarker marker = list->at(i);

            // skip nodes that are not of the specified type
            if (markerTypes.contains(marker.type())) {
                nodeNeedsRepaint = true;
                break;
            }
        }

        if (!nodeNeedsRepaint)
            continue;

        // cause the node to be redrawn
        if (auto renderer = node->renderer())
            renderer->repaint();
    }
}

Vector<IntRect> DocumentMarkerController::renderedRectsForMarkers(DocumentMarker::MarkerType markerType)
{
    Vector<IntRect> result;

    if (!possiblyHasMarkers(markerType))
        return result;
    ASSERT(!(m_markers.isEmpty()));

    // outer loop: process each node
    MarkerMap::iterator end = m_markers.end();
    for (MarkerMap::iterator nodeIterator = m_markers.begin(); nodeIterator != end; ++nodeIterator) {
        // inner loop; process each marker in this node
        MarkerList* list = nodeIterator->value.get();
        unsigned markerCount = list->size();
        for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
            const RenderedDocumentMarker& marker = list->at(markerIndex);

            // skip marker that is wrong type
            if (marker.type() != markerType)
                continue;

            if (!marker.isRendered())
                continue;

            result.append(marker.renderedRect());
        }
    }

    return result;
}

DocumentMarker* DocumentMarkerController::markerContainingPoint(const LayoutPoint& point, DocumentMarker::MarkerType markerType)
{
    if (!possiblyHasMarkers(markerType))
        return 0;
    ASSERT(!(m_markers.isEmpty()));

    // outer loop: process each node that contains any markers
    MarkerMap::iterator end = m_markers.end();
    for (MarkerMap::iterator nodeIterator = m_markers.begin(); nodeIterator != end; ++nodeIterator) {
        // inner loop; process each marker in this node
        MarkerList* list = nodeIterator->value.get();
        unsigned markerCount = list->size();
        for (unsigned markerIndex = 0; markerIndex < markerCount; ++markerIndex) {
            RenderedDocumentMarker& marker = list->at(markerIndex);

            // skip marker that is wrong type
            if (marker.type() != markerType)
                continue;

            if (marker.contains(point))
                return &marker;
        }
    }

    return 0;
}

void DocumentMarkerController::invalidateRenderedRectsForMarkersInRect(const LayoutRect& r)
{
    // outer loop: process each markered node in the document
    MarkerMap::iterator end = m_markers.end();
    for (MarkerMap::iterator i = m_markers.begin(); i != end; ++i) {

        // inner loop: process each rect in the current node
        MarkerList* list = i->value.get();
        for (size_t listIndex = 0; listIndex < list->size(); ++listIndex)
            list->at(listIndex).invalidate(r);
    }
}

// copies markers from srcNode to dstNode, applying the specified shift delta to the copies.  The shift is
// useful if, e.g., the caller has created the dstNode from a non-prefix substring of the srcNode.
void DocumentMarkerController::copyMarkers(Node* srcNode, unsigned startOffset, int length, Node* dstNode, int delta)
{
    if (length <= 0)
        return;

    if (!possiblyHasMarkers(DocumentMarker::AllMarkers()))
        return;
    ASSERT(!m_markers.isEmpty());

    MarkerList* list = m_markers.get(srcNode);
    if (!list)
        return;

    bool docDirty = false;
    unsigned endOffset = startOffset + length - 1;
    for (size_t i = 0; i != list->size(); ++i) {
        DocumentMarker marker = list->at(i);

        // stop if we are now past the specified range
        if (marker.startOffset() > endOffset)
            break;

        // skip marker that is before the specified range or is the wrong type
        if (marker.endOffset() < startOffset)
            continue;

        // pin the marker to the specified range and apply the shift delta
        docDirty = true;
        if (marker.startOffset() < startOffset)
            marker.setStartOffset(startOffset);
        if (marker.endOffset() > endOffset)
            marker.setEndOffset(endOffset);
        marker.shiftOffsets(delta);

        addMarker(dstNode, marker);
    }

    // repaint the affected node
    if (docDirty && dstNode->renderer())
        dstNode->renderer()->repaint();
}

void DocumentMarkerController::removeMarkersFromList(MarkerMap::iterator iterator, DocumentMarker::MarkerTypes markerTypes)
{
    bool needsRepainting = false;
    bool listCanBeRemoved;

    if (markerTypes == DocumentMarker::AllMarkers()) {
        needsRepainting = true;
        listCanBeRemoved = true;
    } else {
        MarkerList* list = iterator->value.get();

        for (size_t i = 0; i != list->size(); ) {
            DocumentMarker marker = list->at(i);

            // skip nodes that are not of the specified type
            if (!markerTypes.contains(marker.type())) {
                ++i;
                continue;
            }

            // pitch the old marker
            list->remove(i);
            needsRepainting = true;
            // i now is the index of the next marker
        }

        listCanBeRemoved = list->isEmpty();
    }

    if (needsRepainting) {
        if (auto renderer = iterator->key->renderer())
            renderer->repaint();
    }

    if (listCanBeRemoved) {
        m_markers.remove(iterator);
        if (m_markers.isEmpty())
            m_possiblyExistingMarkerTypes = 0;
    }
}

void DocumentMarkerController::removeMarkers(Node* node, unsigned startOffset, int length, DocumentMarker::MarkerTypes markerTypes, RemovePartiallyOverlappingMarkerOrNot shouldRemovePartiallyOverlappingMarker)
{
    if (length <= 0)
        return;

    if (!possiblyHasMarkers(markerTypes))
        return;
    ASSERT(!(m_markers.isEmpty()));

    MarkerList* list = m_markers.get(node);
    if (!list)
        return;

    bool docDirty = false;
    unsigned endOffset = startOffset + length;
    for (size_t i = 0; i < list->size();) {
        DocumentMarker marker = list->at(i);

        // markers are returned in order, so stop if we are now past the specified range
        if (marker.startOffset() >= endOffset)
            break;

        // skip marker that is wrong type or before target
        if (marker.endOffset() <= startOffset || !markerTypes.contains(marker.type())) {
            i++;
            continue;
        }

        // at this point we know that marker and target intersect in some way
        docDirty = true;

        // pitch the old marker
        list->remove(i);

        if (shouldRemovePartiallyOverlappingMarker)
            // Stop here. Don't add resulting slices back.
            continue;

        // add either of the resulting slices that are left after removing target
        if (startOffset > marker.startOffset()) {
            DocumentMarker newLeft = marker;
            newLeft.setEndOffset(startOffset);
            list->insert(i, RenderedDocumentMarker(newLeft));
            // i now points to the newly-inserted node, but we want to skip that one
            i++;
        }
        if (marker.endOffset() > endOffset) {
            DocumentMarker newRight = marker;
            newRight.setStartOffset(endOffset);
            list->insert(i, RenderedDocumentMarker(newRight));
            // i now points to the newly-inserted node, but we want to skip that one
            i++;
        }
    }

    if (list->isEmpty()) {
        m_markers.remove(node);
        if (m_markers.isEmpty())
            m_possiblyExistingMarkerTypes = 0;
    }

    // repaint the affected node
    if (docDirty && node->renderer())
        node->renderer()->repaint();
}