")); + DEFINE_STATIC_LOCAL(const String, styleSpanOpen, ("")); + Vector openTag; + append(openTag, isBlock ? divStyle : styleSpanOpen); + appendAttributeValue(openTag, style->cssText(), document->isHTMLDocument()); + openTag.append('\"'); + openTag.append('>'); + preMarkups.append(String::adopt(openTag)); + + postMarkups.append(isBlock ? divClose : styleSpanClose); +} + +// FIXME: Shouldn't we omit style info when annotate == DoNotAnnotateForInterchange? +// FIXME: At least, annotation and style info should probably not be included in range.markupString() +String createMarkup(const Range* range, Vector* nodes, EAnnotateForInterchange annotate, bool convertBlocksToInlines, EAbsoluteURLs absoluteURLs) +{ + DEFINE_STATIC_LOCAL(const String, interchangeNewlineString, ("
")); + + if (!range) + return ""; + + Document* document = range->ownerDocument(); + if (!document) + return ""; + + // Disable the delete button so it's elements are not serialized into the markup, + // but make sure neither endpoint is inside the delete user interface. + Frame* frame = document->frame(); + DeleteButtonController* deleteButton = frame ? frame->editor()->deleteButtonController() : 0; + RefPtr updatedRange = avoidIntersectionWithNode(range, deleteButton ? deleteButton->containerElement() : 0); + if (!updatedRange) + return ""; + + if (deleteButton) + deleteButton->disable(); + + ExceptionCode ec = 0; + bool collapsed = updatedRange->collapsed(ec); + ASSERT(ec == 0); + if (collapsed) + return ""; + Node* commonAncestor = updatedRange->commonAncestorContainer(ec); + ASSERT(ec == 0); + if (!commonAncestor) + return ""; + + document->updateLayoutIgnorePendingStylesheets(); + + Vector markups; + Vector preMarkups; + Node* pastEnd = updatedRange->pastLastNode(); + Node* lastClosed = 0; + Vector ancestorsToClose; + + Node* startNode = updatedRange->firstNode(); + VisiblePosition visibleStart(updatedRange->startPosition(), VP_DEFAULT_AFFINITY); + VisiblePosition visibleEnd(updatedRange->endPosition(), VP_DEFAULT_AFFINITY); + if (annotate && needInterchangeNewlineAfter(visibleStart)) { + if (visibleStart == visibleEnd.previous()) { + if (deleteButton) + deleteButton->enable(); + return interchangeNewlineString; + } + + markups.append(interchangeNewlineString); + startNode = visibleStart.next().deepEquivalent().node(); + + if (pastEnd && Range::compareBoundaryPoints(startNode, 0, pastEnd, 0) >= 0) { + if (deleteButton) + deleteButton->enable(); + return interchangeNewlineString; + } + } + + Node* next; + for (Node* n = startNode; n != pastEnd; n = next) { + // According to , it is possible for n to blow + // past pastEnd and become null here. This shouldn't be possible. + // This null check will prevent crashes (but create too much markup) + // and the ASSERT will hopefully lead us to understanding the problem. + ASSERT(n); + if (!n) + break; + + next = n->traverseNextNode(); + bool skipDescendants = false; + bool addMarkupForNode = true; + + if (!n->renderer() && !enclosingNodeWithTag(Position(n, 0), selectTag)) { + skipDescendants = true; + addMarkupForNode = false; + next = n->traverseNextSibling(); + // Don't skip over pastEnd. + if (pastEnd && pastEnd->isDescendantOf(n)) + next = pastEnd; + } + + if (isBlock(n) && canHaveChildrenForEditing(n) && next == pastEnd) + // Don't write out empty block containers that aren't fully selected. + continue; + + // Add the node to the markup. + if (addMarkupForNode) { + markups.append(getStartMarkup(n, updatedRange.get(), annotate, absoluteURLs)); + if (nodes) + nodes->append(n); + } + + if (n->firstChild() == 0 || skipDescendants) { + // Node has no children, or we are skipping it's descendants, add its close tag now. + if (addMarkupForNode) { + markups.append(getEndMarkup(n)); + lastClosed = n; + } + + // Check if the node is the last leaf of a tree. + if (!n->nextSibling() || next == pastEnd) { + if (!ancestorsToClose.isEmpty()) { + // Close up the ancestors. + do { + Node *ancestor = ancestorsToClose.last(); + if (next != pastEnd && next->isDescendantOf(ancestor)) + break; + // Not at the end of the range, close ancestors up to sibling of next node. + markups.append(getEndMarkup(ancestor)); + lastClosed = ancestor; + ancestorsToClose.removeLast(); + } while (!ancestorsToClose.isEmpty()); + } + + // Surround the currently accumulated markup with markup for ancestors we never opened as we leave the subtree(s) rooted at those ancestors. + Node* nextParent = next ? next->parentNode() : 0; + if (next != pastEnd && n != nextParent) { + Node* lastAncestorClosedOrSelf = n->isDescendantOf(lastClosed) ? lastClosed : n; + for (Node *parent = lastAncestorClosedOrSelf->parent(); parent != 0 && parent != nextParent; parent = parent->parentNode()) { + // All ancestors that aren't in the ancestorsToClose list should either be a) unrendered: + if (!parent->renderer()) + continue; + // or b) ancestors that we never encountered during a pre-order traversal starting at startNode: + ASSERT(startNode->isDescendantOf(parent)); + preMarkups.append(getStartMarkup(parent, updatedRange.get(), annotate, absoluteURLs)); + markups.append(getEndMarkup(parent)); + if (nodes) + nodes->append(parent); + lastClosed = parent; + } + } + } + } else if (addMarkupForNode && !skipDescendants) + // We added markup for this node, and we're descending into it. Set it to close eventually. + ancestorsToClose.append(n); + } + + // Include ancestors that aren't completely inside the range but are required to retain + // the structure and appearance of the copied markup. + Node* specialCommonAncestor = 0; + Node* commonAncestorBlock = commonAncestor ? enclosingBlock(commonAncestor) : 0; + if (annotate && commonAncestorBlock) { + if (commonAncestorBlock->hasTagName(tbodyTag) || commonAncestorBlock->hasTagName(trTag)) { + Node* table = commonAncestorBlock->parentNode(); + while (table && !table->hasTagName(tableTag)) + table = table->parentNode(); + if (table) + specialCommonAncestor = table; + } else if (isSpecialAncestorBlock(commonAncestorBlock)) + specialCommonAncestor = commonAncestorBlock; + } + + // Retain the Mail quote level by including all ancestor mail block quotes. + if (lastClosed && annotate) { + for (Node *ancestor = lastClosed->parentNode(); ancestor; ancestor = ancestor->parentNode()) + if (isMailBlockquote(ancestor)) + specialCommonAncestor = ancestor; + } + + Node* checkAncestor = specialCommonAncestor ? specialCommonAncestor : commonAncestor; + if (checkAncestor->renderer()) { + Node* newSpecialCommonAncestor = highestEnclosingNodeOfType(Position(checkAncestor, 0), &isElementPresentational); + if (newSpecialCommonAncestor) + specialCommonAncestor = newSpecialCommonAncestor; + } + + // If a single tab is selected, commonAncestor will be a text node inside a tab span. + // If two or more tabs are selected, commonAncestor will be the tab span. + // In either case, if there is a specialCommonAncestor already, it will necessarily be above + // any tab span that needs to be included. + if (!specialCommonAncestor && isTabSpanTextNode(commonAncestor)) + specialCommonAncestor = commonAncestor->parentNode(); + if (!specialCommonAncestor && isTabSpanNode(commonAncestor)) + specialCommonAncestor = commonAncestor; + + if (Node *enclosingAnchor = enclosingNodeWithTag(Position(specialCommonAncestor ? specialCommonAncestor : commonAncestor, 0), aTag)) + specialCommonAncestor = enclosingAnchor; + + Node* body = enclosingNodeWithTag(Position(commonAncestor, 0), bodyTag); + // FIXME: Do this for all fully selected blocks, not just the body. + Node* fullySelectedRoot = body && areRangesEqual(VisibleSelection::selectionFromContentsOfNode(body).toNormalizedRange().get(), updatedRange.get()) ? body : 0; + RefPtr fullySelectedRootStyle = fullySelectedRoot ? styleFromMatchedRulesAndInlineDecl(fullySelectedRoot) : 0; + if (annotate && fullySelectedRoot) { + if (shouldIncludeWrapperForFullySelectedRoot(fullySelectedRoot, fullySelectedRootStyle.get())) + specialCommonAncestor = fullySelectedRoot; + } + + if (specialCommonAncestor && lastClosed) { + // Also include all of the ancestors of lastClosed up to this special ancestor. + for (Node* ancestor = lastClosed->parentNode(); ancestor; ancestor = ancestor->parentNode()) { + if (ancestor == fullySelectedRoot && !convertBlocksToInlines) { + + // Bring the background attribute over, but not as an attribute because a background attribute on a div + // appears to have no effect. + if (!fullySelectedRootStyle->getPropertyCSSValue(CSSPropertyBackgroundImage) && static_cast(fullySelectedRoot)->hasAttribute(backgroundAttr)) + fullySelectedRootStyle->setProperty(CSSPropertyBackgroundImage, "url('" + static_cast(fullySelectedRoot)->getAttribute(backgroundAttr) + "')"); + + if (fullySelectedRootStyle->length()) { + // Reset the CSS properties to avoid an assertion error in addStyleMarkup(). + // This assertion is caused at least when we select all text of a element whose + // 'text-decoration' property is "inherit", and copy it. + if (!propertyMissingOrEqualToNone(fullySelectedRootStyle.get(), CSSPropertyTextDecoration)) + fullySelectedRootStyle->setProperty(CSSPropertyTextDecoration, CSSValueNone); + if (!propertyMissingOrEqualToNone(fullySelectedRootStyle.get(), CSSPropertyWebkitTextDecorationsInEffect)) + fullySelectedRootStyle->setProperty(CSSPropertyWebkitTextDecorationsInEffect, CSSValueNone); + addStyleMarkup(preMarkups, markups, fullySelectedRootStyle.get(), document, true); + } + } else { + // Since this node and all the other ancestors are not in the selection we want to set RangeFullySelectsNode to DoesNotFullySelectNode + // so that styles that affect the exterior of the node are not included. + preMarkups.append(getStartMarkup(ancestor, updatedRange.get(), annotate, absoluteURLs, convertBlocksToInlines, 0, DoesNotFullySelectNode)); + markups.append(getEndMarkup(ancestor)); + } + if (nodes) + nodes->append(ancestor); + + lastClosed = ancestor; + + if (ancestor == specialCommonAncestor) + break; + } + } + + // Add a wrapper span with the styles that all of the nodes in the markup inherit. + Node* parentOfLastClosed = lastClosed ? lastClosed->parentNode() : 0; + if (parentOfLastClosed && parentOfLastClosed->renderer()) { + RefPtr style = ApplyStyleCommand::editingStyleAtPosition(Position(parentOfLastClosed, 0)); + + // Styles that Mail blockquotes contribute should only be placed on the Mail blockquote, to help + // us differentiate those styles from ones that the user has applied. This helps us + // get the color of content pasted into blockquotes right. + removeEnclosingMailBlockquoteStyle(style.get(), parentOfLastClosed); + + // Document default styles will be added on another wrapper span. + removeDefaultStyles(style.get(), document); + + // Since we are converting blocks to inlines, remove any inherited block properties that are in the style. + // This cuts out meaningless properties and prevents properties from magically affecting blocks later + // if the style is cloned for a new block element during a future editing operation. + if (convertBlocksToInlines) + style->removeBlockProperties(); + + if (style->length() > 0) + addStyleMarkup(preMarkups, markups, style.get(), document); + } + + if (lastClosed && lastClosed != document->documentElement()) { + // Add a style span with the document's default styles. We add these in a separate + // span so that at paste time we can differentiate between document defaults and user + // applied styles. + RefPtr defaultStyle = ApplyStyleCommand::editingStyleAtPosition(Position(document->documentElement(), 0)); + + if (defaultStyle->length() > 0) + addStyleMarkup(preMarkups, markups, defaultStyle.get(), document); + } + + // FIXME: The interchange newline should be placed in the block that it's in, not after all of the content, unconditionally. + if (annotate && needInterchangeNewlineAfter(visibleEnd.previous())) + markups.append(interchangeNewlineString); + + if (deleteButton) + deleteButton->enable(); + + return joinMarkups(preMarkups, markups); +} + +PassRefPtr createFragmentFromMarkup(Document* document, const String& markup, const String& baseURL, FragmentScriptingPermission scriptingPermission) +{ + RefPtr fragment = document->documentElement()->createContextualFragment(markup, scriptingPermission); + + if (fragment && !baseURL.isEmpty() && baseURL != blankURL() && baseURL != document->baseURL()) + completeURLs(fragment.get(), baseURL); + + return fragment.release(); +} + +String createMarkup(const Node* node, EChildrenOnly childrenOnly, Vector* nodes, EAbsoluteURLs absoluteURLs) +{ + if (!node) + return ""; + + HTMLElement* deleteButtonContainerElement = 0; + if (Frame* frame = node->document()->frame()) { + deleteButtonContainerElement = frame->editor()->deleteButtonController()->containerElement(); + if (node->isDescendantOf(deleteButtonContainerElement)) + return ""; + } + + MarkupAccumulator accumulator(deleteButtonContainerElement, nodes); + accumulator.appendMarkup(const_cast(node), childrenOnly, absoluteURLs); + return accumulator.takeResult(); +} + +static void fillContainerFromString(ContainerNode* paragraph, const String& string) +{ + Document* document = paragraph->document(); + + ExceptionCode ec = 0; + if (string.isEmpty()) { + paragraph->appendChild(createBlockPlaceholderElement(document), ec); + ASSERT(ec == 0); + return; + } + + ASSERT(string.find('\n') == -1); + + Vector tabList; + string.split('\t', true, tabList); + String tabText = ""; + bool first = true; + size_t numEntries = tabList.size(); + for (size_t i = 0; i < numEntries; ++i) { + const String& s = tabList[i]; + + // append the non-tab textual part + if (!s.isEmpty()) { + if (!tabText.isEmpty()) { + paragraph->appendChild(createTabSpanElement(document, tabText), ec); + ASSERT(ec == 0); + tabText = ""; + } + RefPtr textNode = document->createTextNode(stringWithRebalancedWhitespace(s, first, i + 1 == numEntries)); + paragraph->appendChild(textNode.release(), ec); + ASSERT(ec == 0); + } + + // there is a tab after every entry, except the last entry + // (if the last character is a tab, the list gets an extra empty entry) + if (i + 1 != numEntries) + tabText.append('\t'); + else if (!tabText.isEmpty()) { + paragraph->appendChild(createTabSpanElement(document, tabText), ec); + ASSERT(ec == 0); + } + + first = false; + } +} + +bool isPlainTextMarkup(Node *node) +{ + if (!node->isElementNode() || !node->hasTagName(divTag) || static_cast(node)->attributes()->length()) + return false; + + if (node->childNodeCount() == 1 && (node->firstChild()->isTextNode() || (node->firstChild()->firstChild()))) + return true; + + return (node->childNodeCount() == 2 && isTabSpanTextNode(node->firstChild()->firstChild()) && node->firstChild()->nextSibling()->isTextNode()); +} + +PassRefPtr createFragmentFromText(Range* context, const String& text) +{ + if (!context) + return 0; + + Node* styleNode = context->firstNode(); + if (!styleNode) { + styleNode = context->startPosition().node(); + if (!styleNode) + return 0; + } + + Document* document = styleNode->document(); + RefPtr fragment = document->createDocumentFragment(); + + if (text.isEmpty()) + return fragment.release(); + + String string = text; + string.replace("\r\n", "\n"); + string.replace('\r', '\n'); + + ExceptionCode ec = 0; + RenderObject* renderer = styleNode->renderer(); + if (renderer && renderer->style()->preserveNewline()) { + fragment->appendChild(document->createTextNode(string), ec); + ASSERT(ec == 0); + if (string.endsWith("\n")) { + RefPtr element = createBreakElement(document); + element->setAttribute(classAttr, AppleInterchangeNewline); + fragment->appendChild(element.release(), ec); + ASSERT(ec == 0); + } + return fragment.release(); + } + + // A string with no newlines gets added inline, rather than being put into a paragraph. + if (string.find('\n') == -1) { + fillContainerFromString(fragment.get(), string); + return fragment.release(); + } + + // Break string into paragraphs. Extra line breaks turn into empty paragraphs. + Node* blockNode = enclosingBlock(context->firstNode()); + Element* block = static_cast(blockNode); + bool useClonesOfEnclosingBlock = blockNode + && blockNode->isElementNode() + && !block->hasTagName(bodyTag) + && !block->hasTagName(htmlTag) + && block != editableRootForPosition(context->startPosition()); + + Vector list; + string.split('\n', true, list); // true gets us empty strings in the list + size_t numLines = list.size(); + for (size_t i = 0; i < numLines; ++i) { + const String& s = list[i]; + + RefPtr element; + if (s.isEmpty() && i + 1 == numLines) { + // For last line, use the "magic BR" rather than a P. + element = createBreakElement(document); + element->setAttribute(classAttr, AppleInterchangeNewline); + } else { + if (useClonesOfEnclosingBlock) + element = block->cloneElementWithoutChildren(); + else + element = createDefaultParagraphElement(document); + fillContainerFromString(element.get(), s); + } + fragment->appendChild(element.release(), ec); + ASSERT(ec == 0); + } + return fragment.release(); +} + +PassRefPtr createFragmentFromNodes(Document *document, const Vector& nodes) +{ + if (!document) + return 0; + + // disable the delete button so it's elements are not serialized into the markup + if (document->frame()) + document->frame()->editor()->deleteButtonController()->disable(); + + RefPtr fragment = document->createDocumentFragment(); + + ExceptionCode ec = 0; + size_t size = nodes.size(); + for (size_t i = 0; i < size; ++i) { + RefPtr element = createDefaultParagraphElement(document); + element->appendChild(nodes[i], ec); + ASSERT(ec == 0); + fragment->appendChild(element.release(), ec); + ASSERT(ec == 0); + } + + if (document->frame()) + document->frame()->editor()->deleteButtonController()->enable(); + + return fragment.release(); +} + +String createFullMarkup(const Node* node) +{ + if (!node) + return String(); + + Document* document = node->document(); + if (!document) + return String(); + + Frame* frame = document->frame(); + if (!frame) + return String(); + + // FIXME: This is never "for interchange". Is that right? + String markupString = createMarkup(node, IncludeNode, 0); + Node::NodeType nodeType = node->nodeType(); + if (nodeType != Node::DOCUMENT_NODE && nodeType != Node::DOCUMENT_TYPE_NODE) + markupString = frame->documentTypeString() + markupString; + + return markupString; +} + +String createFullMarkup(const Range* range) +{ + if (!range) + return String(); + + Node* node = range->startContainer(); + if (!node) + return String(); + + Document* document = node->document(); + if (!document) + return String(); + + Frame* frame = document->frame(); + if (!frame) + return String(); + + // FIXME: This is always "for interchange". Is that right? See the previous method. + return frame->documentTypeString() + createMarkup(range, 0, AnnotateForInterchange); +} + +String urlToMarkup(const KURL& url, const String& title) +{ + Vector markup; + append(markup, ""); + appendEscapedContent(markup, make_pair(title.characters(), title.length()), false); + append(markup, ""); + return String::adopt(markup); +} + +}