static void enableNumberingForStyle(CSSStyle *style)
{
int level = style->headingLevel;
DFBuffer *reset = DFBufferNew();
for (int after = level+1; after <= 6; after++) {
if (reset->len == 0)
DFBufferFormat(reset,"h%d",after);
else
DFBufferFormat(reset," h%d",after);
}
DFBuffer *content = DFBufferNew();
for (int upto = 1; upto <= level; upto++) {
if (content->len == 0)
DFBufferFormat(content,"counter(h%d)",upto);
else
DFBufferFormat(content," \".\" counter(h%d)",upto);
}
DFBufferFormat(content," \" \"");
CSSProperties *rule = CSSStyleRule(style);
CSSPut(rule,"counter-increment",style->elementName);
if (reset->len > 0)
CSSPut(rule,"counter-reset",reset->data);
CSSPut(CSSStyleBefore(style),"content",content->data);
style->latent = 0;
DFBufferRelease(reset);
DFBufferRelease(content);
}
int CSSSheetHeadingNumbering(CSSSheet *sheet)
{
const char **allSelectors = CSSSheetCopySelectors(sheet);
for (int i = 0; allSelectors[i]; i++) {
CSSStyle *style = CSSSheetLookupSelector(sheet,allSelectors[i],0,0);
if (style->headingLevel == 0)
continue;
if (CSSGet(CSSStyleBefore(style),"content") == NULL)
continue;
DFArray *contentParts = CSSParseContent(CSSGet(CSSStyleBefore(style),"content"));
for (size_t partIndex = 0; partIndex < DFArrayCount(contentParts); partIndex++) {
ContentPart *part = DFArrayItemAt(contentParts,partIndex);
if (part->type == ContentPartCounter) {
free(allSelectors);
DFArrayRelease(contentParts);
return 1;
}
}
DFArrayRelease(contentParts);
}
free(allSelectors);
return 0;
}
static void disableNumberingForStyle(CSSStyle *style, int explicitly)
{
CSSProperties *rule = CSSStyleRule(style);
CSSProperties *before = CSSStyleBefore(style);
if (explicitly) {
// FIXME: Not covered by tests
char *increment = DFFormatString("h%d 0",style->headingLevel);
CSSPut(rule,"counter-increment",increment);
CSSPut(rule,"counter-reset","null");
CSSPut(before,"content","\"\"");
style->latent = 0;
free(increment);
}
else {
CSSPut(rule,"counter-increment",NULL);
CSSPut(rule,"counter-reset",NULL);
CSSPut(before,"content",NULL);
}
}
static void WordGetStyle(DFNode *concrete, CSSStyle *style, WordConverter *converter)
{
WordSection *section = converter->mainSection;
for (DFNode *child = concrete->first; child != NULL; child = child->next) {
const char *styleId = NULL;
switch (child->tag) {
case WORD_NAME:
CSSStyleSetDisplayName(style,DFGetAttribute(child,WORD_VAL));
break;
case WORD_NEXT: {
// FIXME: do he need to handle style types other than paragraph here?
const char *nextName = DFGetAttribute(child,WORD_VAL);
if (nextName == NULL)
continue;
WordStyle *nextStyle = WordSheetStyleForTypeId(converter->styles,"paragraph",nextName);
if (nextStyle == NULL)
continue;
CSSStyleSetNext(style,nextStyle->selector);
break;
}
case WORD_RPR:
WordGetRPr(child,CSSStyleRule(style),&styleId,converter->theme);
break;
case WORD_PPR: {
WordGetPPr(child,CSSStyleRule(style),&styleId,section);
if (style->headingLevel > 0) {
DFNode *numPr = DFChildWithTag(child,WORD_NUMPR);
if (numPr != NULL)
WordGetNumPrStyle(numPr,style,converter);
}
break;
}
case WORD_TBLPR:
WordGetTblPr(child,CSSStyleRule(style),CSSStyleCell(style),section,&styleId);
break;
case WORD_TRPR:
// FIXME
break;
case WORD_TCPR:
WordGetTcPr(child,CSSStyleRule(style));
break;
case WORD_TBLSTYLEPR:
WordGetTblStylePr(child,style,section,converter->theme);
break;
}
}
// Special case: The ListParagraph style that word automatically adds specifies an indentation
// of 36pt. We don't actually want this, because HTML automatically indents lists anyway. If
// we see this, clear it, but keep the old value around for when we update the word document.
StyleFamily family = WordStyleFamilyForSelector(style->selector);
const char *name = WordSheetStyleIdForSelector(converter->styles,style->selector);
if ((family == StyleFamilyParagraph) && DFStringEquals(name,"ListParagraph")) {
CSSProperties *properties = CSSStyleRule(style);
const char *wordMarginLeft = CSSGet(properties,"margin-left");
CSSPut(properties,"-word-margin-left",wordMarginLeft);
CSSPut(properties,"margin-left",NULL);
}
DFNode *pPr = DFChildWithTag(concrete,WORD_PPR);
DFNode *numPr = DFChildWithTag(pPr,WORD_NUMPR);
const char *numId = DFGetChildAttribute(numPr,WORD_NUMID,WORD_VAL);
if ((numId != NULL) && (atoi(numId) == 0)) {
switch (style->tag) {
case HTML_H1:
case HTML_H2:
case HTML_H3:
case HTML_H4:
case HTML_H5:
case HTML_H6:
case HTML_FIGURE:
case HTML_TABLE: {
char *counterIncrement = DFFormatString("%s 0",style->elementName);
CSSPut(CSSStyleRule(style),"counter-reset","null");
CSSPut(CSSStyleRule(style),"counter-increment",counterIncrement);
CSSPut(CSSStyleBefore(style),"content","none");
free(counterIncrement);
}
}
}
}
static void Word_postProcessHTML(WordConverter *conv, DFNode *node)
{
DFNode *next;
for (DFNode *child = node->first; child != NULL; child = next) {
next = child->next;
switch (child->tag) {
case HTML_SPAN: {
const char *className = DFGetAttribute(child,HTML_CLASS);
if (DFStringEquals(className,DFBookmarkClass)) {
if (child->first != NULL)
next = child->first;
DFRemoveNodeButKeepChildren(child);
}
break;
}
case HTML_CAPTION: {
const char *counterName = NULL;
if ((child->prev != NULL) && (child->prev->tag == HTML_FIGURE) &&
(DFChildWithTag(child->prev,HTML_FIGCAPTION) == NULL)) {
child->tag = HTML_FIGCAPTION;
counterName = "figure";
DFAppendChild(child->prev,child);
}
else if ((child->prev != NULL) && (child->prev->tag == HTML_TABLE) &&
(DFChildWithTag(child->prev,HTML_CAPTION) == NULL)) {
counterName = "table";
DFInsertBefore(child->prev,child,child->prev->first);
}
else if ((child->next != NULL) && (child->next->tag == HTML_FIGURE) &&
(DFChildWithTag(child->next,HTML_FIGCAPTION) == NULL)) {
child->tag = HTML_FIGCAPTION;
counterName = "figure";
DFInsertBefore(child->next,child,child->next->first);
}
else if ((child->next != NULL) && (child->next->tag == HTML_TABLE) &&
(DFChildWithTag(child->next,HTML_CAPTION) == NULL)) {
counterName = "table";
DFSetAttribute(child,HTML_STYLE,"caption-side: top");
DFInsertBefore(child->next,child,child->next->first);
}
if (counterName != NULL) {
char *beforeText = extractPrefix(child,counterName);
if (beforeText != NULL) {
CSSStyle *style = CSSSheetLookupElement(conv->styleSheet,DFNodeName(child),NULL,1,0);
if (CSSGet(CSSStyleBefore(style),"content") == NULL) {
CSSPut(CSSStyleRule(style),"counter-increment",counterName);
CSSPut(CSSStyleBefore(style),"content",beforeText);
}
}
free(beforeText);
}
break;
}
case HTML_NAV: {
if (HTML_isParagraphTag(node->tag)) {
if (child->prev != NULL) {
DFNode *beforeP = DFCreateElement(conv->package->document,node->tag);
while (child->prev != NULL)
DFInsertBefore(beforeP,child->prev,beforeP->first);
DFInsertBefore(node->parent,beforeP,node);
}
DFInsertBefore(node->parent,child,node);
if ((node->first == NULL) ||
((node->first->tag == HTML_BR) && (node->first->next == NULL))) {
DFRemoveNode(node);
return;
}
next = NULL;
}
break;
}
}
}
for (DFNode *child = node->first; child != NULL; child = next) {
next = child->next;
Word_postProcessHTML(conv,child);
}
}
static void Word_preProcessHTML(WordConverter *word, DFNode *node)
{
switch (node->tag) {
case HTML_TABLE:
case HTML_FIGURE: {
DFNode *next;
for (DFNode *child = node->first; child != NULL; child = next) {
next = child->next;
if ((child->tag != HTML_CAPTION) && (child->tag != HTML_FIGCAPTION))
continue;
WordCaption *caption = WordCaptionNew(child);
WordObjectsSetCaption(word->objects,caption,node);
caption->contentStart = child->first;
WordCaptionRelease(caption);
const char *className = DFGetAttribute(child,HTML_CLASS);
CSSStyle *style;
if (child->tag == HTML_CAPTION)
style = CSSSheetLookupElement(word->styleSheet,"caption",className,0,0);
else
style = CSSSheetLookupElement(word->styleSheet,"figcaption",className,0,0);
CSSProperties *before = CSSStyleBefore(style);
if (CSSGet(before,"content") != NULL)
Word_addContentParts(child,CSSGet(before,"content"),caption);
child->tag = HTML_P;
DFSetAttribute(child,HTML_CLASS,"Caption");
DFInsertBefore(node->parent,child,node->next);
Word_preProcessHTML(word,child);
}
// The HTML normalization process ensures that apart from the <figcaption> element,
// all children of a <figure> are paragraphs or containers. Currently the editor only
// lets you create figures that contain a single image, so it's always a single
// paragraph. Since the HTML <figure> element gets mapped to a single <w:p> element
// by WordParagraphLens, we want to make sure it only contains inline children.
for (DFNode *child = node->first; child != NULL; child = next) {
next = child->next;
if (HTML_isParagraphTag(child->tag))
DFRemoveNodeButKeepChildren(child);
}
// FIXME: Handle <div>, <pre>, lists, tables etc which could also theoretically
// exist inside the <figure> element
break;
}
case HTML_NAV: {
const char *className = DFGetAttribute(node,HTML_CLASS);
const char *instr = NULL;
if (DFStringEquals(className,DFTableOfContentsClass))
instr = " TOC \\o \"1-3\" ";
else if (DFStringEquals(className,DFListOfFiguresClass))
instr = " TOC \\c \"Figure\" ";
else if (DFStringEquals(className,DFListOfTablesClass))
instr = " TOC \\c \"Table\" ";
if (instr != NULL) {
DFNode *p = DFCreateElement(word->html,HTML_P);
DFNode *field = DFCreateChildElement(p,HTML_SPAN);
DFSetAttribute(field,HTML_CLASS,DFFieldClass);
DFCreateChildTextNode(field,instr);
DFInsertBefore(node->parent,p,node);
DFRemoveNode(node);
}
break;
}
}
DFNode *next;
for (DFNode *child = node->first; child != NULL; child = next) {
next = child->next;
Word_preProcessHTML(word,child);
}
}
int CSSStyleIsNumbered(CSSStyle *style)
{
const char *beforeContent = CSSGet(CSSStyleBefore(style),"content");
return ((beforeContent != NULL) && !DFStringEquals(beforeContent,"\"\""));
}
// FIXME: This won't work now for Word documents, where styles always have class names
// FIXME: Not covered by tests
void CSSSheetSetHeadingNumbering(CSSSheet *sheet, int enabled)
{
CSSStyle *defaultStyle = CSSSheetDefaultStyleForFamily(sheet,StyleFamilyParagraph);
if (enabled) {
DFHashTable *stylesByHeadingLevel = getStylesByHeadingLevel(sheet);
for (int level = 1; level <= 6; level++) {
StyleList *styles = DFHashTableLookupInt(stylesByHeadingLevel,level);
int haveClassless = 0;
for (StyleList *item = styles; item != NULL; item = item->next) {
if (item->style->className == NULL)
haveClassless = 1;
}
// If there exists a style at level n which has no class name, then that is the parent of all other
// heading styles. Set the numbering on that. Alternatively, if there no styles exist at level n, then
// create a new one with no class name, and set the numbering information on that.
if ((styles == NULL) || haveClassless) {
char *elementName = DFFormatString("h%d",level);
CSSStyle *style = CSSSheetLookupElement(sheet,elementName,NULL,1,0);
enableNumberingForStyle(style);
free(elementName);
}
else {
// There are multiple heading styles at level n, all of which have a class name associated with them.
// Set the numbering information on those which either have no parentId, or whose parentId is the
// default paragraph style. This caters for situations like the "HeadingXUnnumbered" styles we used
// to have, which were based on the corresponding "HeadingX" style.
for (StyleList *item = styles; item != NULL; item = item->next) {
char *parentSelector = CSSStyleCopyParent(item->style);
if ((parentSelector == NULL) || !strcmp(parentSelector,defaultStyle->selector)) {
enableNumberingForStyle(item->style);
}
else {
disableNumberingForStyle(item->style,1);
}
free(parentSelector);
}
}
StyleList *next;
for (; styles != NULL; styles = next) {
next = styles->next;
CSSStyleRelease(styles->style);
free(styles);
}
}
DFHashTableRelease(stylesByHeadingLevel);
}
else {
// Clear all numbering information on all heading styles
const char **allSelectors = CSSSheetCopySelectors(sheet);
for (int i = 0; allSelectors[i]; i++) {
CSSStyle *style = CSSSheetLookupSelector(sheet,allSelectors[i],0,0);
if (style->headingLevel > 0) {
CSSPut(CSSStyleRule(style),"counter-increment",NULL);
CSSPut(CSSStyleRule(style),"counter-reset",NULL);
CSSPut(CSSStyleBefore(style),"content",NULL);
}
}
free(allSelectors);
}
}