| /** |
| * Copyright (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com) |
| * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "RenderCounter.h" |
| |
| #include "CounterNode.h" |
| #include "Document.h" |
| #include "Element.h" |
| #include "HTMLNames.h" |
| #include "HTMLOListElement.h" |
| #include "RenderListItem.h" |
| #include "RenderListMarker.h" |
| #include "RenderStyle.h" |
| #include <wtf/StdLibExtras.h> |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| typedef HashMap<RefPtr<AtomicStringImpl>, RefPtr<CounterNode> > CounterMap; |
| typedef HashMap<const RenderObject*, CounterMap*> CounterMaps; |
| |
| static CounterNode* makeCounterNode(RenderObject*, const AtomicString& identifier, bool alwaysCreateCounter); |
| |
| static CounterMaps& counterMaps() |
| { |
| DEFINE_STATIC_LOCAL(CounterMaps, staticCounterMaps, ()); |
| return staticCounterMaps; |
| } |
| |
| // This function processes the renderer tree in the order of the DOM tree |
| // including pseudo elements as defined in CSS 2.1. |
| // Anonymous renderers are skipped except for those representing pseudo elements. |
| static RenderObject* previousInPreOrder(const RenderObject* object) |
| { |
| Element* parent; |
| Element* sibling; |
| switch (object->style()->styleType()) { |
| case NOPSEUDO: |
| ASSERT(!object->isAnonymous()); |
| parent = toElement(object->node()); |
| sibling = parent->previousElementSibling(); |
| parent = parent->parentElement(); |
| break; |
| case BEFORE: |
| return object->generatingNode()->renderer(); // It is always the generating node's renderer |
| case AFTER: |
| parent = toElement(object->generatingNode()); |
| sibling = parent->lastElementChild(); |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| while (sibling) { |
| if (RenderObject* renderer = sibling->renderer()) { |
| if (RenderObject* after = renderer->afterPseudoElementRenderer()) |
| return after; |
| parent = sibling; |
| sibling = sibling->lastElementChild(); |
| if (!sibling) { |
| if (RenderObject* before = renderer->beforePseudoElementRenderer()) |
| return before; |
| return renderer; |
| } |
| } else |
| sibling = sibling->previousElementSibling(); |
| } |
| if (!parent) |
| return 0; |
| RenderObject* renderer = parent->renderer(); // Should never be null |
| if (RenderObject* before = renderer->beforePseudoElementRenderer()) |
| return before; |
| return renderer; |
| } |
| |
| // This function processes the renderer tree in the order of the DOM tree |
| // including pseudo elements as defined in CSS 2.1. |
| // Anonymous renderers are skipped except for those representing pseudo elements. |
| static RenderObject* previousSiblingOrParent(const RenderObject* object) |
| { |
| Element* parent; |
| Element* sibling; |
| switch (object->style()->styleType()) { |
| case NOPSEUDO: |
| ASSERT(!object->isAnonymous()); |
| parent = toElement(object->node()); |
| sibling = parent->previousElementSibling(); |
| parent = parent->parentElement(); |
| break; |
| case BEFORE: |
| return object->generatingNode()->renderer(); // It is always the generating node's renderer |
| case AFTER: |
| parent = toElement(object->generatingNode()); |
| sibling = parent->lastElementChild(); |
| break; |
| default: |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| while (sibling) { |
| if (RenderObject* renderer = sibling->renderer()) // This skips invisible nodes |
| return renderer; |
| sibling = sibling->previousElementSibling(); |
| } |
| if (parent) { |
| RenderObject* renderer = parent->renderer(); |
| if (RenderObject* before = renderer->virtualChildren()->beforePseudoElementRenderer(renderer)) |
| return before; |
| return renderer; |
| } |
| return 0; |
| } |
| |
| static Element* parentElement(RenderObject* object) |
| { |
| switch (object->style()->styleType()) { |
| case NOPSEUDO: |
| ASSERT(!object->isAnonymous()); |
| return toElement(object->node())->parentElement(); |
| case BEFORE: |
| case AFTER: |
| return toElement(object->generatingNode()); |
| default: |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| } |
| |
| static inline bool areRenderersElementsSiblings(RenderObject* first, RenderObject* second) |
| { |
| return parentElement(first) == parentElement(second); |
| } |
| |
| // This function processes the renderer tree in the order of the DOM tree |
| // including pseudo elements as defined in CSS 2.1. |
| // Anonymous renderers are skipped except for those representing pseudo elements. |
| static RenderObject* nextInPreOrder(const RenderObject* object, const Element* stayWithin, bool skipDescendants = false) |
| { |
| Element* self; |
| Element* child; |
| RenderObject* result; |
| self = toElement(object->generatingNode()); |
| if (skipDescendants) |
| goto nextsibling; |
| switch (object->style()->styleType()) { |
| case NOPSEUDO: |
| ASSERT(!object->isAnonymous()); |
| result = object->beforePseudoElementRenderer(); |
| if (result) |
| return result; |
| break; |
| case BEFORE: |
| break; |
| case AFTER: |
| goto nextsibling; |
| default: |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| child = self->firstElementChild(); |
| while (true) { |
| while (child) { |
| result = child->renderer(); |
| if (result) |
| return result; |
| child = child->nextElementSibling(); |
| } |
| result = self->renderer()->afterPseudoElementRenderer(); |
| if (result) |
| return result; |
| nextsibling: |
| if (self == stayWithin) |
| return 0; |
| child = self->nextElementSibling(); |
| self = self->parentElement(); |
| if (!self) { |
| ASSERT(!child); // We can only reach this if we are searching beyond the root element |
| return 0; // which cannot have siblings |
| } |
| } |
| } |
| |
| static bool planCounter(RenderObject* object, const AtomicString& identifier, bool& isReset, int& value) |
| { |
| ASSERT(object); |
| |
| // Real text nodes don't have their own style so they can't have counters. |
| // We can't even look at their styles or we'll see extra resets and increments! |
| if (object->isText() && !object->isBR()) |
| return false; |
| Node* generatingNode = object->generatingNode(); |
| // We must have a generating node or else we cannot have a counter. |
| if (!generatingNode) |
| return false; |
| RenderStyle* style = object->style(); |
| ASSERT(style); |
| |
| switch (style->styleType()) { |
| case NOPSEUDO: |
| // Sometimes nodes have more then one renderer. Only the first one gets the counter |
| // LayoutTests/http/tests/css/counter-crash.html |
| if (generatingNode->renderer() != object) |
| return false; |
| break; |
| case BEFORE: |
| case AFTER: |
| break; |
| default: |
| return false; // Counters are forbidden from all other pseudo elements. |
| } |
| |
| if (const CounterDirectiveMap* directivesMap = style->counterDirectives()) { |
| CounterDirectives directives = directivesMap->get(identifier.impl()); |
| if (directives.m_reset) { |
| value = directives.m_resetValue; |
| if (directives.m_increment) |
| value += directives.m_incrementValue; |
| isReset = true; |
| return true; |
| } |
| if (directives.m_increment) { |
| value = directives.m_incrementValue; |
| isReset = false; |
| return true; |
| } |
| } |
| |
| if (identifier == "list-item") { |
| if (object->isListItem()) { |
| if (toRenderListItem(object)->hasExplicitValue()) { |
| value = toRenderListItem(object)->explicitValue(); |
| isReset = true; |
| return true; |
| } |
| value = 1; |
| isReset = false; |
| return true; |
| } |
| if (Node* e = object->node()) { |
| if (e->hasTagName(olTag)) { |
| value = static_cast<HTMLOListElement*>(e)->start(); |
| isReset = true; |
| return true; |
| } |
| if (e->hasTagName(ulTag) || e->hasTagName(menuTag) || e->hasTagName(dirTag)) { |
| value = 0; |
| isReset = true; |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| // - Finds the insertion point for the counter described by counterOwner, isReset and |
| // identifier in the CounterNode tree for identifier and sets parent and |
| // previousSibling accordingly. |
| // - The function returns true if the counter whose insertion point is searched is NOT |
| // the root of the tree. |
| // - The root of the tree is a counter reference that is not in the scope of any other |
| // counter with the same identifier. |
| // - All the counter references with the same identifier as this one that are in |
| // children or subsequent siblings of the renderer that owns the root of the tree |
| // form the rest of of the nodes of the tree. |
| // - The root of the tree is always a reset type reference. |
| // - A subtree rooted at any reset node in the tree is equivalent to all counter |
| // references that are in the scope of the counter or nested counter defined by that |
| // reset node. |
| // - Non-reset CounterNodes cannot have descendants. |
| |
| static bool findPlaceForCounter(RenderObject* counterOwner, const AtomicString& identifier, bool isReset, CounterNode*& parent, CounterNode*& previousSibling) |
| { |
| // We cannot stop searching for counters with the same identifier before we also |
| // check this renderer, because it may affect the positioning in the tree of our counter. |
| RenderObject* searchEndRenderer = previousSiblingOrParent(counterOwner); |
| // We check renderers in preOrder from the renderer that our counter is attached to |
| // towards the begining of the document for counters with the same identifier as the one |
| // we are trying to find a place for. This is the next renderer to be checked. |
| RenderObject* currentRenderer = previousInPreOrder(counterOwner); |
| previousSibling = 0; |
| while (currentRenderer) { |
| CounterNode* currentCounter = makeCounterNode(currentRenderer, identifier, false); |
| if (searchEndRenderer == currentRenderer) { |
| // We may be at the end of our search. |
| if (currentCounter) { |
| // We have a suitable counter on the EndSearchRenderer. |
| if (previousSibling) { // But we already found another counter that we come after. |
| if (currentCounter->actsAsReset()) { |
| // We found a reset counter that is on a renderer that is a sibling of ours or a parent. |
| if (isReset && areRenderersElementsSiblings(currentRenderer, counterOwner)) { |
| // We are also a reset counter and the previous reset was on a sibling renderer |
| // hence we are the next sibling of that counter if that reset is not a root or |
| // we are a root node if that reset is a root. |
| parent = currentCounter->parent(); |
| previousSibling = parent ? currentCounter : 0; |
| return parent; |
| } |
| // We are not a reset node or the previous reset must be on an ancestor of our owner renderer |
| // hence we must be a child of that reset counter. |
| parent = currentCounter; |
| ASSERT(previousSibling->parent() == currentCounter); |
| return true; |
| } |
| // CurrentCounter, the counter at the EndSearchRenderer, is not reset. |
| if (!isReset || !areRenderersElementsSiblings(currentRenderer, counterOwner)) { |
| // If the node we are placing is not reset or we have found a counter that is attached |
| // to an ancestor of the placed counter's owner renderer we know we are a sibling of that node. |
| ASSERT(currentCounter->parent() == previousSibling->parent()); |
| parent = currentCounter->parent(); |
| return true; |
| } |
| } else { |
| // We are at the potential end of the search, but we had no previous sibling candidate |
| // In this case we follow pretty much the same logic as above but no ASSERTs about |
| // previousSibling, and when we are a sibling of the end counter we must set previousSibling |
| // to currentCounter. |
| if (currentCounter->actsAsReset()) { |
| if (isReset && areRenderersElementsSiblings(currentRenderer, counterOwner)) { |
| parent = currentCounter->parent(); |
| previousSibling = currentCounter; |
| return parent; |
| } |
| parent = currentCounter; |
| return true; |
| } |
| if (!isReset || !areRenderersElementsSiblings(currentRenderer, counterOwner)) { |
| parent = currentCounter->parent(); |
| previousSibling = currentCounter; |
| return true; |
| } |
| previousSibling = currentCounter; |
| } |
| } |
| // We come here if the previous sibling or parent of our owner renderer had no |
| // good counter, or we are a reset node and the counter on the previous sibling |
| // of our owner renderer was not a reset counter. |
| // Set a new goal for the end of the search. |
| searchEndRenderer = previousSiblingOrParent(currentRenderer); |
| } else { |
| // We are searching descendants of a previous sibling of the renderer that the |
| // counter being placed is attached to. |
| if (currentCounter) { |
| // We found a suitable counter. |
| if (previousSibling) { |
| // Since we had a suitable previous counter before, we should only consider this one as our |
| // previousSibling if it is a reset counter and hence the current previousSibling is its child. |
| if (currentCounter->actsAsReset()) { |
| previousSibling = currentCounter; |
| // We are no longer interested in previous siblings of the currentRenderer or their children |
| // as counters they may have attached cannot be the previous sibling of the counter we are placing. |
| currentRenderer = parentElement(currentRenderer)->renderer(); |
| continue; |
| } |
| } else |
| previousSibling = currentCounter; |
| currentRenderer = previousSiblingOrParent(currentRenderer); |
| continue; |
| } |
| } |
| // This function is designed so that the same test is not done twice in an iteration, except for this one |
| // which may be done twice in some cases. Rearranging the decision points though, to accommodate this |
| // performance improvement would create more code duplication than is worthwhile in my oppinion and may further |
| // impede the readability of this already complex algorithm. |
| if (previousSibling) |
| currentRenderer = previousSiblingOrParent(currentRenderer); |
| else |
| currentRenderer = previousInPreOrder(currentRenderer); |
| } |
| return false; |
| } |
| |
| static CounterNode* makeCounterNode(RenderObject* object, const AtomicString& identifier, bool alwaysCreateCounter) |
| { |
| ASSERT(object); |
| |
| if (object->m_hasCounterNodeMap) { |
| if (CounterMap* nodeMap = counterMaps().get(object)) { |
| if (CounterNode* node = nodeMap->get(identifier.impl()).get()) |
| return node; |
| } |
| } |
| |
| bool isReset = false; |
| int value = 0; |
| if (!planCounter(object, identifier, isReset, value) && !alwaysCreateCounter) |
| return 0; |
| |
| CounterNode* newParent = 0; |
| CounterNode* newPreviousSibling = 0; |
| RefPtr<CounterNode> newNode = CounterNode::create(object, isReset, value); |
| if (findPlaceForCounter(object, identifier, isReset, newParent, newPreviousSibling)) |
| newParent->insertAfter(newNode.get(), newPreviousSibling, identifier); |
| CounterMap* nodeMap; |
| if (object->m_hasCounterNodeMap) |
| nodeMap = counterMaps().get(object); |
| else { |
| nodeMap = new CounterMap; |
| counterMaps().set(object, nodeMap); |
| object->m_hasCounterNodeMap = true; |
| } |
| nodeMap->set(identifier.impl(), newNode); |
| if (newNode->parent()) |
| return newNode.get(); |
| // Checking if some nodes that were previously counter tree root nodes |
| // should become children of this node now. |
| CounterMaps& maps = counterMaps(); |
| Element* stayWithin = parentElement(object); |
| bool skipDescendants; |
| for (RenderObject* currentRenderer = nextInPreOrder(object, stayWithin); currentRenderer; currentRenderer = nextInPreOrder(currentRenderer, stayWithin, skipDescendants)) { |
| skipDescendants = false; |
| if (!currentRenderer->m_hasCounterNodeMap) |
| continue; |
| CounterNode* currentCounter = maps.get(currentRenderer)->get(identifier.impl()).get(); |
| if (!currentCounter) |
| continue; |
| skipDescendants = true; |
| if (currentCounter->parent()) { |
| ASSERT(newNode->firstChild()); |
| continue; |
| } |
| if (stayWithin == parentElement(currentRenderer) && currentCounter->hasResetType()) |
| break; |
| newNode->insertAfter(currentCounter, newNode->lastChild(), identifier); |
| } |
| return newNode.get(); |
| } |
| |
| RenderCounter::RenderCounter(Document* node, const CounterContent& counter) |
| : RenderText(node, StringImpl::empty()) |
| , m_counter(counter) |
| , m_counterNode(0) |
| , m_nextForSameCounter(0) |
| { |
| } |
| |
| RenderCounter::~RenderCounter() |
| { |
| if (m_counterNode) { |
| m_counterNode->removeRenderer(this); |
| ASSERT(!m_counterNode); |
| } |
| } |
| |
| const char* RenderCounter::renderName() const |
| { |
| return "RenderCounter"; |
| } |
| |
| bool RenderCounter::isCounter() const |
| { |
| return true; |
| } |
| |
| PassRefPtr<StringImpl> RenderCounter::originalText() const |
| { |
| if (!m_counterNode) { |
| RenderObject* beforeAfterContainer = parent(); |
| while (true) { |
| if (!beforeAfterContainer) |
| return 0; |
| if (!beforeAfterContainer->isAnonymous()) |
| return 0; // RenderCounters are restricted to before and after pseudo elements |
| PseudoId containerStyle = beforeAfterContainer->style()->styleType(); |
| if ((containerStyle == BEFORE) || (containerStyle == AFTER)) |
| break; |
| beforeAfterContainer = beforeAfterContainer->parent(); |
| } |
| makeCounterNode(beforeAfterContainer, m_counter.identifier(), true)->addRenderer(const_cast<RenderCounter*>(this)); |
| ASSERT(m_counterNode); |
| } |
| CounterNode* child = m_counterNode; |
| int value = child->actsAsReset() ? child->value() : child->countInParent(); |
| |
| String text = listMarkerText(m_counter.listStyle(), value); |
| |
| if (!m_counter.separator().isNull()) { |
| if (!child->actsAsReset()) |
| child = child->parent(); |
| while (CounterNode* parent = child->parent()) { |
| text = listMarkerText(m_counter.listStyle(), child->countInParent()) |
| + m_counter.separator() + text; |
| child = parent; |
| } |
| } |
| |
| return text.impl(); |
| } |
| |
| void RenderCounter::computePreferredLogicalWidths(float lead) |
| { |
| setTextInternal(originalText()); |
| RenderText::computePreferredLogicalWidths(lead); |
| } |
| |
| void RenderCounter::invalidate() |
| { |
| m_counterNode->removeRenderer(this); |
| ASSERT(!m_counterNode); |
| if (documentBeingDestroyed()) |
| return; |
| setNeedsLayoutAndPrefWidthsRecalc(); |
| } |
| |
| static void destroyCounterNodeWithoutMapRemoval(const AtomicString& identifier, CounterNode* node) |
| { |
| CounterNode* previous; |
| for (RefPtr<CounterNode> child = node->lastDescendant(); child && child != node; child = previous) { |
| previous = child->previousInPreOrder(); |
| child->parent()->removeChild(child.get()); |
| ASSERT(counterMaps().get(child->owner())->get(identifier.impl()) == child); |
| counterMaps().get(child->owner())->remove(identifier.impl()); |
| } |
| if (CounterNode* parent = node->parent()) |
| parent->removeChild(node); |
| } |
| |
| void RenderCounter::destroyCounterNodes(RenderObject* owner) |
| { |
| CounterMaps& maps = counterMaps(); |
| CounterMaps::iterator mapsIterator = maps.find(owner); |
| if (mapsIterator == maps.end()) |
| return; |
| CounterMap* map = mapsIterator->second; |
| CounterMap::const_iterator end = map->end(); |
| for (CounterMap::const_iterator it = map->begin(); it != end; ++it) { |
| AtomicString identifier(it->first.get()); |
| destroyCounterNodeWithoutMapRemoval(identifier, it->second.get()); |
| } |
| maps.remove(mapsIterator); |
| delete map; |
| owner->m_hasCounterNodeMap = false; |
| } |
| |
| void RenderCounter::destroyCounterNode(RenderObject* owner, const AtomicString& identifier) |
| { |
| CounterMap* map = counterMaps().get(owner); |
| if (!map) |
| return; |
| CounterMap::iterator mapIterator = map->find(identifier.impl()); |
| if (mapIterator == map->end()) |
| return; |
| destroyCounterNodeWithoutMapRemoval(identifier, mapIterator->second.get()); |
| map->remove(mapIterator); |
| // We do not delete "map" here even if empty because we expect to reuse |
| // it soon. In order for a renderer to lose all its counters permanently, |
| // a style change for the renderer involving removal of all counter |
| // directives must occur, in which case, RenderCounter::destroyCounterNodes() |
| // must be called. |
| // The destruction of the Renderer (possibly caused by the removal of its |
| // associated DOM node) is the other case that leads to the permanent |
| // destruction of all counters attached to a Renderer. In this case |
| // RenderCounter::destroyCounterNodes() must be and is now called, too. |
| // RenderCounter::destroyCounterNodes() handles destruction of the counter |
| // map associated with a renderer, so there is no risk in leaking the map. |
| } |
| |
| void RenderCounter::rendererRemovedFromTree(RenderObject* removedRenderer) |
| { |
| RenderObject* currentRenderer = removedRenderer->lastLeafChild(); |
| if (!currentRenderer) |
| currentRenderer = removedRenderer; |
| while (true) { |
| destroyCounterNodes(currentRenderer); |
| if (currentRenderer == removedRenderer) |
| break; |
| currentRenderer = currentRenderer->previousInPreOrder(); |
| } |
| } |
| |
| static void updateCounters(RenderObject* renderer) |
| { |
| ASSERT(renderer->style()); |
| const CounterDirectiveMap* directiveMap = renderer->style()->counterDirectives(); |
| if (!directiveMap) |
| return; |
| CounterDirectiveMap::const_iterator end = directiveMap->end(); |
| if (!renderer->m_hasCounterNodeMap) { |
| for (CounterDirectiveMap::const_iterator it = directiveMap->begin(); it != end; ++it) |
| makeCounterNode(renderer, AtomicString(it->first.get()), false); |
| return; |
| } |
| CounterMap* counterMap = counterMaps().get(renderer); |
| ASSERT(counterMap); |
| for (CounterDirectiveMap::const_iterator it = directiveMap->begin(); it != end; ++it) { |
| RefPtr<CounterNode> node = counterMap->get(it->first.get()); |
| if (!node) { |
| makeCounterNode(renderer, AtomicString(it->first.get()), false); |
| continue; |
| } |
| CounterNode* newParent = 0; |
| CounterNode* newPreviousSibling; |
| |
| findPlaceForCounter(renderer, AtomicString(it->first.get()), node->hasResetType(), newParent, newPreviousSibling); |
| if (node != counterMap->get(it->first.get())) |
| continue; |
| CounterNode* parent = node->parent(); |
| if (newParent == parent && newPreviousSibling == node->previousSibling()) |
| continue; |
| if (parent) |
| parent->removeChild(node.get()); |
| if (newParent) |
| newParent->insertAfter(node.get(), newPreviousSibling, it->first.get()); |
| } |
| } |
| |
| void RenderCounter::rendererSubtreeAttached(RenderObject* renderer) |
| { |
| Node* node = renderer->node(); |
| if (node) |
| node = node->parentNode(); |
| else |
| node = renderer->generatingNode(); |
| if (node && !node->attached()) |
| return; // No need to update if the parent is not attached yet |
| for (RenderObject* descendant = renderer; descendant; descendant = descendant->nextInPreOrder(renderer)) |
| updateCounters(descendant); |
| } |
| |
| void RenderCounter::rendererStyleChanged(RenderObject* renderer, const RenderStyle* oldStyle, const RenderStyle* newStyle) |
| { |
| Node* node = renderer->generatingNode(); |
| if (!node || !node->attached()) |
| return; // cannot have generated content or if it can have, it will be handled during attaching |
| const CounterDirectiveMap* newCounterDirectives; |
| const CounterDirectiveMap* oldCounterDirectives; |
| if (oldStyle && (oldCounterDirectives = oldStyle->counterDirectives())) { |
| if (newStyle && (newCounterDirectives = newStyle->counterDirectives())) { |
| CounterDirectiveMap::const_iterator newMapEnd = newCounterDirectives->end(); |
| CounterDirectiveMap::const_iterator oldMapEnd = oldCounterDirectives->end(); |
| for (CounterDirectiveMap::const_iterator it = newCounterDirectives->begin(); it != newMapEnd; ++it) { |
| CounterDirectiveMap::const_iterator oldMapIt = oldCounterDirectives->find(it->first); |
| if (oldMapIt != oldMapEnd) { |
| if (oldMapIt->second == it->second) |
| continue; |
| RenderCounter::destroyCounterNode(renderer, it->first.get()); |
| } |
| // We must create this node here, because the changed node may be a node with no display such as |
| // as those created by the increment or reset directives and the re-layout that will happen will |
| // not catch the change if the node had no children. |
| makeCounterNode(renderer, it->first.get(), false); |
| } |
| // Destroying old counters that do not exist in the new counterDirective map. |
| for (CounterDirectiveMap::const_iterator it = oldCounterDirectives->begin(); it !=oldMapEnd; ++it) { |
| if (!newCounterDirectives->contains(it->first)) |
| RenderCounter::destroyCounterNode(renderer, it->first.get()); |
| } |
| } else { |
| if (renderer->m_hasCounterNodeMap) |
| RenderCounter::destroyCounterNodes(renderer); |
| } |
| } else if (newStyle && (newCounterDirectives = newStyle->counterDirectives())) { |
| CounterDirectiveMap::const_iterator newMapEnd = newCounterDirectives->end(); |
| for (CounterDirectiveMap::const_iterator it = newCounterDirectives->begin(); it != newMapEnd; ++it) { |
| // We must create this node here, because the added node may be a node with no display such as |
| // as those created by the increment or reset directives and the re-layout that will happen will |
| // not catch the change if the node had no children. |
| makeCounterNode(renderer, it->first.get(), false); |
| } |
| } |
| } |
| |
| } // namespace WebCore |
| |
| #ifndef NDEBUG |
| |
| void showCounterRendererTree(const WebCore::RenderObject* renderer, const char* counterName) |
| { |
| if (!renderer) |
| return; |
| const WebCore::RenderObject* root = renderer; |
| while (root->parent()) |
| root = root->parent(); |
| |
| AtomicString identifier(counterName); |
| for (const WebCore::RenderObject* current = root; current; current = current->nextInPreOrder()) { |
| fprintf(stderr, "%c", (current == renderer) ? '*' : ' '); |
| for (const WebCore::RenderObject* parent = current; parent && parent != root; parent = parent->parent()) |
| fprintf(stderr, " "); |
| fprintf(stderr, "%p N:%p P:%p PS:%p NS:%p C:%p\n", |
| current, current->node(), current->parent(), current->previousSibling(), |
| current->nextSibling(), current->m_hasCounterNodeMap? |
| counterName ? WebCore::counterMaps().get(current)->get(identifier.impl()).get() : (WebCore::CounterNode*)1 : (WebCore::CounterNode*)0); |
| } |
| fflush(stderr); |
| } |
| |
| #endif // NDEBUG |
