FlowThreadController.cpp [plain text]
#include "config.h"
#include "FlowThreadController.h"
#include "RenderFlowThread.h"
#include "RenderNamedFlowThread.h"
#include <wtf/text/AtomicString.h>
namespace WebCore {
PassOwnPtr<FlowThreadController> FlowThreadController::create(RenderView* view)
{
return adoptPtr(new FlowThreadController(view));
}
FlowThreadController::FlowThreadController(RenderView* view)
: m_view(view)
, m_currentRenderFlowThread(0)
, m_isRenderNamedFlowThreadOrderDirty(false)
{
}
FlowThreadController::~FlowThreadController()
{
}
RenderNamedFlowThread* FlowThreadController::ensureRenderFlowThreadWithName(const AtomicString& name)
{
if (!m_renderNamedFlowThreadList)
m_renderNamedFlowThreadList = adoptPtr(new RenderNamedFlowThreadList());
else {
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
if (flowRenderer->flowThreadName() == name)
return flowRenderer;
}
}
RenderNamedFlowThread* flowRenderer = new (m_view->renderArena()) RenderNamedFlowThread(m_view->document(), name);
flowRenderer->setStyle(RenderFlowThread::createFlowThreadStyle(m_view->style()));
m_renderNamedFlowThreadList->add(flowRenderer);
m_view->addChild(flowRenderer);
setIsRenderNamedFlowThreadOrderDirty(true);
return flowRenderer;
}
void FlowThreadController::layoutRenderNamedFlowThreads()
{
ASSERT(m_renderNamedFlowThreadList);
if (isRenderNamedFlowThreadOrderDirty()) {
RenderNamedFlowThreadList sortedList;
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
if (sortedList.contains(flowRenderer))
continue;
flowRenderer->pushDependencies(sortedList);
sortedList.add(flowRenderer);
}
m_renderNamedFlowThreadList->swap(sortedList);
setIsRenderNamedFlowThreadOrderDirty(false);
}
for (RenderNamedFlowThreadList::iterator iter = m_renderNamedFlowThreadList->begin(); iter != m_renderNamedFlowThreadList->end(); ++iter) {
RenderNamedFlowThread* flowRenderer = *iter;
flowRenderer->layoutIfNeeded();
}
}
void FlowThreadController::registerNamedFlowContentNode(Node* contentNode, RenderNamedFlowThread* namedFlow)
{
ASSERT(contentNode && contentNode->isElementNode());
ASSERT(namedFlow);
ASSERT(!m_mapNamedFlowContentNodes.contains(contentNode));
ASSERT(!namedFlow->hasContentNode(contentNode));
m_mapNamedFlowContentNodes.add(contentNode, namedFlow);
namedFlow->registerNamedFlowContentNode(contentNode);
}
void FlowThreadController::unregisterNamedFlowContentNode(Node* contentNode)
{
ASSERT(contentNode && contentNode->isElementNode());
HashMap<Node*, RenderNamedFlowThread*>::iterator it = m_mapNamedFlowContentNodes.find(contentNode);
ASSERT(it != m_mapNamedFlowContentNodes.end());
ASSERT(it->second);
ASSERT(it->second->hasContentNode(contentNode));
it->second->unregisterNamedFlowContentNode(contentNode);
m_mapNamedFlowContentNodes.remove(contentNode);
}
}