Exemplos de setContainerAndOffsetForRange em C++ (Cpp)

Exemplo n.º 1

Arquivo: HTMLTextFormControlElement.cpp Projeto: Tkkg1994/Platfrom-kccat6

PassRefPtr<Range> HTMLTextFormControlElement::selection() const
{
#if defined(S_CLEAR_SELECTION_ONAUTOFOCUS)
    if (!renderer() || !isTextFormControl())
#else
    if (!renderer() || !isTextFormControl() || !hasCachedSelection())
#endif
        return 0;

    int start = m_cachedSelectionStart;
    int end = m_cachedSelectionEnd;

    ASSERT(start <= end);
    HTMLElement* innerText = innerTextElement();
    if (!innerText)
        return 0;

    if (!innerText->firstChild())
        return Range::create(document(), innerText, 0, innerText, 0);

    int offset = 0;
    Node* startNode = 0;
    Node* endNode = 0;
    for (Node* node = innerText->firstChild(); node; node = NodeTraversal::next(*node, innerText)) {
        ASSERT(!node->firstChild());
        ASSERT(node->isTextNode() || node->hasTagName(brTag));
        int length = node->isTextNode() ? lastOffsetInNode(node) : 1;

        if (offset <= start && start <= offset + length)
            setContainerAndOffsetForRange(node, start - offset, startNode, start);

        if (offset <= end && end <= offset + length) {
            setContainerAndOffsetForRange(node, end - offset, endNode, end);
            break;
        }

        offset += length;
    }

    if (!startNode || !endNode)
        return 0;

    return Range::create(document(), startNode, start, endNode, end);
}

Exemplo n.º 2

Arquivo: HTMLTextFormControlElement.cpp Projeto: smil-in-javascript/blink

PassRefPtrWillBeRawPtr<Range> HTMLTextFormControlElement::selection() const
{
    if (!renderer() || !isTextFormControl())
        return nullptr;

    int start = m_cachedSelectionStart;
    int end = m_cachedSelectionEnd;

    ASSERT(start <= end);
    HTMLElement* innerText = innerEditorElement();
    if (!innerText)
        return nullptr;

    if (!innerText->firstChild())
        return Range::create(document(), innerText, 0, innerText, 0);

    int offset = 0;
    Node* startNode = 0;
    Node* endNode = 0;
    for (Node* node = innerText->firstChild(); node; node = NodeTraversal::next(*node, innerText)) {
        ASSERT(!node->firstChild());
        ASSERT(node->isTextNode() || isHTMLBRElement(*node));
        int length = node->isTextNode() ? lastOffsetInNode(node) : 1;

        if (offset <= start && start <= offset + length)
            setContainerAndOffsetForRange(node, start - offset, startNode, start);

        if (offset <= end && end <= offset + length) {
            setContainerAndOffsetForRange(node, end - offset, endNode, end);
            break;
        }

        offset += length;
    }

    if (!startNode || !endNode)
        return nullptr;

    return Range::create(document(), startNode, start, endNode, end);
}

Exemplo n.º 3

Range* HTMLTextFormControlElement::selection() const
{
    if (!layoutObject() || !isTextFormControl())
        return nullptr;

    int start = m_cachedSelectionStart;
    int end = m_cachedSelectionEnd;

    ASSERT(start <= end);
    HTMLElement* innerText = innerEditorElement();
    if (!innerText)
        return nullptr;

    if (!innerText->hasChildren())
        return Range::create(document(), innerText, 0, innerText, 0);

    int offset = 0;
    Node* startNode = 0;
    Node* endNode = 0;
    for (Node& node : NodeTraversal::descendantsOf(*innerText)) {
        ASSERT(!node.hasChildren());
        ASSERT(node.isTextNode() || isHTMLBRElement(node));
        int length = node.isTextNode() ? lastOffsetInNode(&node) : 1;

        if (offset <= start && start <= offset + length)
            setContainerAndOffsetForRange(&node, start - offset, startNode, start);

        if (offset <= end && end <= offset + length) {
            setContainerAndOffsetForRange(&node, end - offset, endNode, end);
            break;
        }

        offset += length;
    }

    if (!startNode || !endNode)
        return nullptr;

    return Range::create(document(), startNode, start, endNode, end);
}