Exemplo n.º 1
0
void RenderInline::splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox,
                             RenderObject* newChild, RenderFlow* oldCont)
{
    RenderBlock* pre = 0;
    RenderBlock* block = containingBlock();
    
    // Delete our line boxes before we do the inline split into continuations.
    block->deleteLineBoxTree();
    
    bool madeNewBeforeBlock = false;
    if (block->isAnonymousBlock() && (!block->parent() || !block->parent()->createsAnonymousWrapper())) {
        // We can reuse this block and make it the preBlock of the next continuation.
        pre = block;
        block = block->containingBlock();
    } else {
        // No anonymous block available for use.  Make one.
        pre = block->createAnonymousBlock();
        madeNewBeforeBlock = true;
    }

    RenderBlock* post = block->createAnonymousBlock();

    RenderObject* boxFirst = madeNewBeforeBlock ? block->firstChild() : pre->nextSibling();
    if (madeNewBeforeBlock)
        block->insertChildNode(pre, boxFirst);
    block->insertChildNode(newBlockBox, boxFirst);
    block->insertChildNode(post, boxFirst);
    block->setChildrenInline(false);
    
    if (madeNewBeforeBlock) {
        RenderObject* o = boxFirst;
        while (o) {
            RenderObject* no = o;
            o = no->nextSibling();
            pre->appendChildNode(block->removeChildNode(no));
            no->setNeedsLayoutAndPrefWidthsRecalc();
        }
    }

    splitInlines(pre, post, newBlockBox, beforeChild, oldCont);

    // We already know the newBlockBox isn't going to contain inline kids, so avoid wasting
    // time in makeChildrenNonInline by just setting this explicitly up front.
    newBlockBox->setChildrenInline(false);

    // We don't just call addChild, since it would pass things off to the
    // continuation, so we call addChildToFlow explicitly instead.  We delayed
    // adding the newChild until now so that the |newBlockBox| would be fully
    // connected, thus allowing newChild access to a renderArena should it need
    // to wrap itself in additional boxes (e.g., table construction).
    newBlockBox->addChildToFlow(newChild, 0);

    // Always just do a full layout in order to ensure that line boxes (especially wrappers for images)
    // get deleted properly.  Because objects moves from the pre block into the post block, we want to
    // make new line boxes instead of leaving the old line boxes around.
    pre->setNeedsLayoutAndPrefWidthsRecalc();
    block->setNeedsLayoutAndPrefWidthsRecalc();
    post->setNeedsLayoutAndPrefWidthsRecalc();
}
Exemplo n.º 2
0
RenderObject* RenderRubyRun::removeChild(RenderObject& child)
{
    // If the child is a ruby text, then merge the ruby base with the base of
    // the right sibling run, if possible.
    if (!beingDestroyed() && !documentBeingDestroyed() && child.isRubyText()) {
        RenderRubyBase* base = rubyBase();
        RenderObject* rightNeighbour = nextSibling();
        if (base && rightNeighbour && rightNeighbour->isRubyRun()) {
            // Ruby run without a base can happen only at the first run.
            RenderRubyRun* rightRun = toRenderRubyRun(rightNeighbour);
            if (rightRun->hasRubyBase()) {
                RenderRubyBase* rightBase = rightRun->rubyBaseSafe();
                // Collect all children in a single base, then swap the bases.
                rightBase->mergeChildrenWithBase(base);
                moveChildTo(rightRun, base);
                rightRun->moveChildTo(this, rightBase);
                // The now empty ruby base will be removed below.
                ASSERT(!rubyBase()->firstChild());
            }
        }
    }

    RenderObject* next = RenderBlockFlow::removeChild(child);

    if (!beingDestroyed() && !documentBeingDestroyed()) {
        // Check if our base (if any) is now empty. If so, destroy it.
        RenderBlock* base = rubyBase();
        if (base && !base->firstChild()) {
            next = RenderBlockFlow::removeChild(*base);
            base->deleteLines();
            base->destroy();
        }

        // If any of the above leaves the run empty, destroy it as well.
        if (isEmpty()) {
            parent()->removeChild(*this);
            deleteLines();
            destroy();
            next = nullptr;
        }
    }
    
    return next;
}
Exemplo n.º 3
0
void RenderRubyRun::removeChild(RenderObject* child)
{
    // If the child is a ruby text, then merge the ruby base with the base of
    // the right sibling run, if possible.
    if (!m_beingDestroyed && !documentBeingDestroyed() && child->isRubyText()) {
        RenderRubyBase* base = rubyBase();
        RenderObject* rightNeighbour = nextSibling();
        if (base && rightNeighbour && rightNeighbour->isRubyRun()) {
            // Ruby run without a base can happen only at the first run.
            RenderRubyRun* rightRun = static_cast<RenderRubyRun*>(rightNeighbour);
            if (rightRun->hasRubyBase()) {
                RenderRubyBase* rightBase = rightRun->rubyBaseSafe();
                // Collect all children in a single base, then swap the bases.
                rightBase->moveChildren(base);
                moveChildTo(rightRun, base);
                rightRun->moveChildTo(this, rightBase);
                // The now empty ruby base will be removed below.
            }
        }
    }

    RenderBlock::removeChild(child);

    if (!m_beingDestroyed && !documentBeingDestroyed()) {
        // Check if our base (if any) is now empty. If so, destroy it.
        RenderBlock* base = rubyBase();
        if (base && !base->firstChild()) {
            RenderBlock::removeChild(base);
            base->deleteLineBoxTree();
            base->destroy();
        }

        // If any of the above leaves the run empty, destroy it as well.
        if (isEmpty()) {
            parent()->removeChild(this);
            deleteLineBoxTree();
            destroy();
        }
    }
}
Exemplo n.º 4
0
void RenderInline::splitFlow(RenderObject *beforeChild, RenderBlock *newBlockBox, RenderObject *newChild, RenderFlow *oldCont)
{
    RenderBlock *pre = 0;
    RenderBlock *block = containingBlock();
    bool madeNewBeforeBlock = false;
    if(block->isAnonymousBlock())
    {
        // We can reuse this block and make it the preBlock of the next continuation.
        pre = block;
        block = block->containingBlock();
    }
    else
    {
        // No anonymous block available for use.  Make one.
        pre = block->createAnonymousBlock();
        madeNewBeforeBlock = true;
    }

    RenderBlock *post = block->createAnonymousBlock();

    RenderObject *boxFirst = madeNewBeforeBlock ? block->firstChild() : pre->nextSibling();
    if(madeNewBeforeBlock)
        block->insertChildNode(pre, boxFirst);
    block->insertChildNode(newBlockBox, boxFirst);
    block->insertChildNode(post, boxFirst);
    block->setChildrenInline(false);

    if(madeNewBeforeBlock)
    {
        RenderObject *o = boxFirst;
        while(o)
        {
            RenderObject *no = o;
            o = no->nextSibling();
            pre->appendChildNode(block->removeChildNode(no));
            no->setNeedsLayoutAndMinMaxRecalc();
        }
    }

    splitInlines(pre, post, newBlockBox, beforeChild, oldCont);

    // We already know the newBlockBox isn't going to contain inline kids, so avoid wasting
    // time in makeChildrenNonInline by just setting this explicitly up front.
    newBlockBox->setChildrenInline(false);

    // We don't just call addChild, since it would pass things off to the
    // continuation, so we call addChildToFlow explicitly instead.  We delayed
    // adding the newChild until now so that the |newBlockBox| would be fully
    // connected, thus allowing newChild access to a renderArena should it need
    // to wrap itself in additional boxes (e.g., table construction).
    newBlockBox->addChildToFlow(newChild, 0);

    // XXXdwh is any of this even necessary? I don't think it is.
    pre->close();
    pre->setPos(0, -500000);
    pre->setNeedsLayout(true);
    newBlockBox->close();
    newBlockBox->setPos(0, -500000);
    newBlockBox->setNeedsLayout(true);
    post->close();
    post->setPos(0, -500000);
    post->setNeedsLayout(true);

    updatePseudoChildren();

    block->setNeedsLayoutAndMinMaxRecalc();
}