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-rw-r--r--editor/libeditor/HTMLEditUtils.cpp842
1 files changed, 842 insertions, 0 deletions
diff --git a/editor/libeditor/HTMLEditUtils.cpp b/editor/libeditor/HTMLEditUtils.cpp
new file mode 100644
index 000000000..a701c06ec
--- /dev/null
+++ b/editor/libeditor/HTMLEditUtils.cpp
@@ -0,0 +1,842 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "HTMLEditUtils.h"
+
+#include "TextEditUtils.h" // for TextEditUtils
+#include "mozilla/ArrayUtils.h" // for ArrayLength
+#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc.
+#include "mozilla/EditorBase.h" // for EditorBase
+#include "mozilla/dom/Element.h" // for Element, nsINode
+#include "nsAString.h" // for nsAString_internal::IsEmpty
+#include "nsCOMPtr.h" // for nsCOMPtr, operator==, etc.
+#include "nsCaseTreatment.h"
+#include "nsDebug.h" // for NS_PRECONDITION, etc.
+#include "nsError.h" // for NS_SUCCEEDED
+#include "nsGkAtoms.h" // for nsGkAtoms, nsGkAtoms::a, etc.
+#include "nsHTMLTags.h"
+#include "nsIAtom.h" // for nsIAtom
+#include "nsIDOMHTMLAnchorElement.h" // for nsIDOMHTMLAnchorElement
+#include "nsIDOMNode.h" // for nsIDOMNode
+#include "nsNameSpaceManager.h" // for kNameSpaceID_None
+#include "nsLiteralString.h" // for NS_LITERAL_STRING
+#include "nsString.h" // for nsAutoString
+
+namespace mozilla {
+
+/**
+ * IsInlineStyle() returns true if aNode is an inline style.
+ */
+bool
+HTMLEditUtils::IsInlineStyle(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsInlineStyle(node);
+}
+
+bool
+HTMLEditUtils::IsInlineStyle(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::b,
+ nsGkAtoms::i,
+ nsGkAtoms::u,
+ nsGkAtoms::tt,
+ nsGkAtoms::s,
+ nsGkAtoms::strike,
+ nsGkAtoms::big,
+ nsGkAtoms::small,
+ nsGkAtoms::sub,
+ nsGkAtoms::sup,
+ nsGkAtoms::font);
+}
+
+/**
+ * IsFormatNode() returns true if aNode is a format node.
+ */
+bool
+HTMLEditUtils::IsFormatNode(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsFormatNode(node);
+}
+
+bool
+HTMLEditUtils::IsFormatNode(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::p,
+ nsGkAtoms::pre,
+ nsGkAtoms::h1,
+ nsGkAtoms::h2,
+ nsGkAtoms::h3,
+ nsGkAtoms::h4,
+ nsGkAtoms::h5,
+ nsGkAtoms::h6,
+ nsGkAtoms::address);
+}
+
+/**
+ * IsNodeThatCanOutdent() returns true if aNode is a list, list item or
+ * blockquote.
+ */
+bool
+HTMLEditUtils::IsNodeThatCanOutdent(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsIAtom> nodeAtom = EditorBase::GetTag(aNode);
+ return (nodeAtom == nsGkAtoms::ul)
+ || (nodeAtom == nsGkAtoms::ol)
+ || (nodeAtom == nsGkAtoms::dl)
+ || (nodeAtom == nsGkAtoms::li)
+ || (nodeAtom == nsGkAtoms::dd)
+ || (nodeAtom == nsGkAtoms::dt)
+ || (nodeAtom == nsGkAtoms::blockquote);
+}
+
+/**
+ * IsHeader() returns true if aNode is an html header.
+ */
+bool
+HTMLEditUtils::IsHeader(nsINode& aNode)
+{
+ return aNode.IsAnyOfHTMLElements(nsGkAtoms::h1,
+ nsGkAtoms::h2,
+ nsGkAtoms::h3,
+ nsGkAtoms::h4,
+ nsGkAtoms::h5,
+ nsGkAtoms::h6);
+}
+
+bool
+HTMLEditUtils::IsHeader(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ MOZ_ASSERT(node);
+ return IsHeader(*node);
+}
+
+/**
+ * IsParagraph() returns true if aNode is an html paragraph.
+ */
+bool
+HTMLEditUtils::IsParagraph(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::p);
+}
+
+/**
+ * IsHR() returns true if aNode is an horizontal rule.
+ */
+bool
+HTMLEditUtils::IsHR(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::hr);
+}
+
+/**
+ * IsListItem() returns true if aNode is an html list item.
+ */
+bool
+HTMLEditUtils::IsListItem(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsListItem(node);
+}
+
+bool
+HTMLEditUtils::IsListItem(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::li,
+ nsGkAtoms::dd,
+ nsGkAtoms::dt);
+}
+
+/**
+ * IsTableElement() returns true if aNode is an html table, td, tr, ...
+ */
+bool
+HTMLEditUtils::IsTableElement(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsTableElement(node);
+}
+
+bool
+HTMLEditUtils::IsTableElement(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::table,
+ nsGkAtoms::tr,
+ nsGkAtoms::td,
+ nsGkAtoms::th,
+ nsGkAtoms::thead,
+ nsGkAtoms::tfoot,
+ nsGkAtoms::tbody,
+ nsGkAtoms::caption);
+}
+
+/**
+ * IsTableElementButNotTable() returns true if aNode is an html td, tr, ...
+ * (doesn't include table)
+ */
+bool
+HTMLEditUtils::IsTableElementButNotTable(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsTableElementButNotTable(node);
+}
+
+bool
+HTMLEditUtils::IsTableElementButNotTable(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::tr,
+ nsGkAtoms::td,
+ nsGkAtoms::th,
+ nsGkAtoms::thead,
+ nsGkAtoms::tfoot,
+ nsGkAtoms::tbody,
+ nsGkAtoms::caption);
+}
+
+/**
+ * IsTable() returns true if aNode is an html table.
+ */
+bool
+HTMLEditUtils::IsTable(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::table);
+}
+
+bool
+HTMLEditUtils::IsTable(nsINode* aNode)
+{
+ return aNode && aNode->IsHTMLElement(nsGkAtoms::table);
+}
+
+/**
+ * IsTableRow() returns true if aNode is an html tr.
+ */
+bool
+HTMLEditUtils::IsTableRow(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::tr);
+}
+
+/**
+ * IsTableCell() returns true if aNode is an html td or th.
+ */
+bool
+HTMLEditUtils::IsTableCell(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsTableCell(node);
+}
+
+bool
+HTMLEditUtils::IsTableCell(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::td, nsGkAtoms::th);
+}
+
+/**
+ * IsTableCellOrCaption() returns true if aNode is an html td or th or caption.
+ */
+bool
+HTMLEditUtils::IsTableCellOrCaption(nsINode& aNode)
+{
+ return aNode.IsAnyOfHTMLElements(nsGkAtoms::td, nsGkAtoms::th,
+ nsGkAtoms::caption);
+}
+
+/**
+ * IsList() returns true if aNode is an html list.
+ */
+bool
+HTMLEditUtils::IsList(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsList(node);
+}
+
+bool
+HTMLEditUtils::IsList(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::ul,
+ nsGkAtoms::ol,
+ nsGkAtoms::dl);
+}
+
+/**
+ * IsOrderedList() returns true if aNode is an html ordered list.
+ */
+bool
+HTMLEditUtils::IsOrderedList(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::ol);
+}
+
+
+/**
+ * IsUnorderedList() returns true if aNode is an html unordered list.
+ */
+bool
+HTMLEditUtils::IsUnorderedList(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::ul);
+}
+
+/**
+ * IsBlockquote() returns true if aNode is an html blockquote node.
+ */
+bool
+HTMLEditUtils::IsBlockquote(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::blockquote);
+}
+
+/**
+ * IsPre() returns true if aNode is an html pre node.
+ */
+bool
+HTMLEditUtils::IsPre(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::pre);
+}
+
+/**
+ * IsImage() returns true if aNode is an html image node.
+ */
+bool
+HTMLEditUtils::IsImage(nsINode* aNode)
+{
+ return aNode && aNode->IsHTMLElement(nsGkAtoms::img);
+}
+
+bool
+HTMLEditUtils::IsImage(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::img);
+}
+
+bool
+HTMLEditUtils::IsLink(nsIDOMNode *aNode)
+{
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsLink(node);
+}
+
+bool
+HTMLEditUtils::IsLink(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+
+ nsCOMPtr<nsIDOMHTMLAnchorElement> anchor = do_QueryInterface(aNode);
+ if (anchor) {
+ nsAutoString tmpText;
+ if (NS_SUCCEEDED(anchor->GetHref(tmpText)) && !tmpText.IsEmpty()) {
+ return true;
+ }
+ }
+ return false;
+}
+
+bool
+HTMLEditUtils::IsNamedAnchor(nsIDOMNode *aNode)
+{
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsNamedAnchor(node);
+}
+
+bool
+HTMLEditUtils::IsNamedAnchor(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ if (!aNode->IsHTMLElement(nsGkAtoms::a)) {
+ return false;
+ }
+
+ nsAutoString text;
+ return aNode->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::name,
+ text) && !text.IsEmpty();
+}
+
+/**
+ * IsDiv() returns true if aNode is an html div node.
+ */
+bool
+HTMLEditUtils::IsDiv(nsIDOMNode* aNode)
+{
+ return EditorBase::NodeIsType(aNode, nsGkAtoms::div);
+}
+
+/**
+ * IsMozDiv() returns true if aNode is an html div node with |type = _moz|.
+ */
+bool
+HTMLEditUtils::IsMozDiv(nsIDOMNode* aNode)
+{
+ return IsDiv(aNode) && TextEditUtils::HasMozAttr(aNode);
+}
+
+bool
+HTMLEditUtils::IsMozDiv(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsHTMLElement(nsGkAtoms::div) &&
+ TextEditUtils::HasMozAttr(GetAsDOMNode(aNode));
+}
+
+/**
+ * IsMailCite() returns true if aNode is an html blockquote with |type=cite|.
+ */
+bool
+HTMLEditUtils::IsMailCite(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsMailCite(node);
+}
+
+bool
+HTMLEditUtils::IsMailCite(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+
+ // don't ask me why, but our html mailcites are id'd by "type=cite"...
+ if (aNode->IsElement() &&
+ aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
+ NS_LITERAL_STRING("cite"),
+ eIgnoreCase)) {
+ return true;
+ }
+
+ // ... but our plaintext mailcites by "_moz_quote=true". go figure.
+ if (aNode->IsElement() &&
+ aNode->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mozquote,
+ NS_LITERAL_STRING("true"),
+ eIgnoreCase)) {
+ return true;
+ }
+
+ return false;
+}
+
+/**
+ * IsFormWidget() returns true if aNode is a form widget of some kind.
+ */
+bool
+HTMLEditUtils::IsFormWidget(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
+ return node && IsFormWidget(node);
+}
+
+bool
+HTMLEditUtils::IsFormWidget(nsINode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ return aNode->IsAnyOfHTMLElements(nsGkAtoms::textarea,
+ nsGkAtoms::select,
+ nsGkAtoms::button,
+ nsGkAtoms::output,
+ nsGkAtoms::keygen,
+ nsGkAtoms::progress,
+ nsGkAtoms::meter,
+ nsGkAtoms::input);
+}
+
+bool
+HTMLEditUtils::SupportsAlignAttr(nsIDOMNode* aNode)
+{
+ MOZ_ASSERT(aNode);
+ nsCOMPtr<nsIAtom> nodeAtom = EditorBase::GetTag(aNode);
+ return (nodeAtom == nsGkAtoms::hr)
+ || (nodeAtom == nsGkAtoms::table)
+ || (nodeAtom == nsGkAtoms::tbody)
+ || (nodeAtom == nsGkAtoms::tfoot)
+ || (nodeAtom == nsGkAtoms::thead)
+ || (nodeAtom == nsGkAtoms::tr)
+ || (nodeAtom == nsGkAtoms::td)
+ || (nodeAtom == nsGkAtoms::th)
+ || (nodeAtom == nsGkAtoms::div)
+ || (nodeAtom == nsGkAtoms::p)
+ || (nodeAtom == nsGkAtoms::h1)
+ || (nodeAtom == nsGkAtoms::h2)
+ || (nodeAtom == nsGkAtoms::h3)
+ || (nodeAtom == nsGkAtoms::h4)
+ || (nodeAtom == nsGkAtoms::h5)
+ || (nodeAtom == nsGkAtoms::h6);
+}
+
+// We use bitmasks to test containment of elements. Elements are marked to be
+// in certain groups by setting the mGroup member of the nsElementInfo struct
+// to the corresponding GROUP_ values (OR'ed together). Similarly, elements are
+// marked to allow containment of certain groups by setting the
+// mCanContainGroups member of the nsElementInfo struct to the corresponding
+// GROUP_ values (OR'ed together).
+// Testing containment then simply consists of checking whether the
+// mCanContainGroups bitmask of an element and the mGroup bitmask of a
+// potential child overlap.
+
+#define GROUP_NONE 0
+
+// body, head, html
+#define GROUP_TOPLEVEL (1 << 1)
+
+// base, link, meta, script, style, title
+#define GROUP_HEAD_CONTENT (1 << 2)
+
+// b, big, i, s, small, strike, tt, u
+#define GROUP_FONTSTYLE (1 << 3)
+
+// abbr, acronym, cite, code, datalist, del, dfn, em, ins, kbd, mark, rb, rp
+// rt, rtc, ruby, samp, strong, var
+#define GROUP_PHRASE (1 << 4)
+
+// a, applet, basefont, bdo, br, font, iframe, img, map, meter, object, output,
+// picture, progress, q, script, span, sub, sup
+#define GROUP_SPECIAL (1 << 5)
+
+// button, form, input, label, select, textarea
+#define GROUP_FORMCONTROL (1 << 6)
+
+// address, applet, article, aside, blockquote, button, center, del, details,
+// dir, div, dl, fieldset, figure, footer, form, h1, h2, h3, h4, h5, h6, header,
+// hgroup, hr, iframe, ins, main, map, menu, nav, noframes, noscript, object,
+// ol, p, pre, table, section, summary, ul
+#define GROUP_BLOCK (1 << 7)
+
+// frame, frameset
+#define GROUP_FRAME (1 << 8)
+
+// col, tbody
+#define GROUP_TABLE_CONTENT (1 << 9)
+
+// tr
+#define GROUP_TBODY_CONTENT (1 << 10)
+
+// td, th
+#define GROUP_TR_CONTENT (1 << 11)
+
+// col
+#define GROUP_COLGROUP_CONTENT (1 << 12)
+
+// param
+#define GROUP_OBJECT_CONTENT (1 << 13)
+
+// li
+#define GROUP_LI (1 << 14)
+
+// area
+#define GROUP_MAP_CONTENT (1 << 15)
+
+// optgroup, option
+#define GROUP_SELECT_CONTENT (1 << 16)
+
+// option
+#define GROUP_OPTIONS (1 << 17)
+
+// dd, dt
+#define GROUP_DL_CONTENT (1 << 18)
+
+// p
+#define GROUP_P (1 << 19)
+
+// text, whitespace, newline, comment
+#define GROUP_LEAF (1 << 20)
+
+// XXX This is because the editor does sublists illegally.
+// ol, ul
+#define GROUP_OL_UL (1 << 21)
+
+// h1, h2, h3, h4, h5, h6
+#define GROUP_HEADING (1 << 22)
+
+// figcaption
+#define GROUP_FIGCAPTION (1 << 23)
+
+// picture members (img, source)
+#define GROUP_PICTURE_CONTENT (1 << 24)
+
+#define GROUP_INLINE_ELEMENT \
+ (GROUP_FONTSTYLE | GROUP_PHRASE | GROUP_SPECIAL | GROUP_FORMCONTROL | \
+ GROUP_LEAF)
+
+#define GROUP_FLOW_ELEMENT (GROUP_INLINE_ELEMENT | GROUP_BLOCK)
+
+struct ElementInfo final
+{
+#ifdef DEBUG
+ eHTMLTags mTag;
+#endif
+ uint32_t mGroup;
+ uint32_t mCanContainGroups;
+ bool mIsContainer;
+ bool mCanContainSelf;
+};
+
+#ifdef DEBUG
+#define ELEM(_tag, _isContainer, _canContainSelf, _group, _canContainGroups) \
+ { eHTMLTag_##_tag, _group, _canContainGroups, _isContainer, _canContainSelf }
+#else
+#define ELEM(_tag, _isContainer, _canContainSelf, _group, _canContainGroups) \
+ { _group, _canContainGroups, _isContainer, _canContainSelf }
+#endif
+
+static const ElementInfo kElements[eHTMLTag_userdefined] = {
+ ELEM(a, true, false, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(abbr, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(acronym, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(address, true, true, GROUP_BLOCK,
+ GROUP_INLINE_ELEMENT | GROUP_P),
+ ELEM(applet, true, true, GROUP_SPECIAL | GROUP_BLOCK,
+ GROUP_FLOW_ELEMENT | GROUP_OBJECT_CONTENT),
+ ELEM(area, false, false, GROUP_MAP_CONTENT, GROUP_NONE),
+ ELEM(article, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(aside, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(audio, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(b, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ ELEM(base, false, false, GROUP_HEAD_CONTENT, GROUP_NONE),
+ ELEM(basefont, false, false, GROUP_SPECIAL, GROUP_NONE),
+ ELEM(bdo, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(bgsound, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(big, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ ELEM(blockquote, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(body, true, true, GROUP_TOPLEVEL, GROUP_FLOW_ELEMENT),
+ ELEM(br, false, false, GROUP_SPECIAL, GROUP_NONE),
+ ELEM(button, true, true, GROUP_FORMCONTROL | GROUP_BLOCK,
+ GROUP_FLOW_ELEMENT),
+ ELEM(canvas, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(caption, true, true, GROUP_NONE, GROUP_INLINE_ELEMENT),
+ ELEM(center, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(cite, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(code, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(col, false, false, GROUP_TABLE_CONTENT | GROUP_COLGROUP_CONTENT,
+ GROUP_NONE),
+ ELEM(colgroup, true, false, GROUP_NONE, GROUP_COLGROUP_CONTENT),
+ ELEM(content, true, false, GROUP_NONE, GROUP_INLINE_ELEMENT),
+ ELEM(data, true, false, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(datalist, true, false, GROUP_PHRASE,
+ GROUP_OPTIONS | GROUP_INLINE_ELEMENT),
+ ELEM(dd, true, false, GROUP_DL_CONTENT, GROUP_FLOW_ELEMENT),
+ ELEM(del, true, true, GROUP_PHRASE | GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(details, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(dfn, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(dir, true, false, GROUP_BLOCK, GROUP_LI),
+ ELEM(div, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(dl, true, false, GROUP_BLOCK, GROUP_DL_CONTENT),
+ ELEM(dt, true, true, GROUP_DL_CONTENT, GROUP_INLINE_ELEMENT),
+ ELEM(em, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(embed, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(fieldset, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(figcaption, true, false, GROUP_FIGCAPTION, GROUP_FLOW_ELEMENT),
+ ELEM(figure, true, true, GROUP_BLOCK,
+ GROUP_FLOW_ELEMENT | GROUP_FIGCAPTION),
+ ELEM(font, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(footer, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(form, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(frame, false, false, GROUP_FRAME, GROUP_NONE),
+ ELEM(frameset, true, true, GROUP_FRAME, GROUP_FRAME),
+ ELEM(h1, true, false, GROUP_BLOCK | GROUP_HEADING,
+ GROUP_INLINE_ELEMENT),
+ ELEM(h2, true, false, GROUP_BLOCK | GROUP_HEADING,
+ GROUP_INLINE_ELEMENT),
+ ELEM(h3, true, false, GROUP_BLOCK | GROUP_HEADING,
+ GROUP_INLINE_ELEMENT),
+ ELEM(h4, true, false, GROUP_BLOCK | GROUP_HEADING,
+ GROUP_INLINE_ELEMENT),
+ ELEM(h5, true, false, GROUP_BLOCK | GROUP_HEADING,
+ GROUP_INLINE_ELEMENT),
+ ELEM(h6, true, false, GROUP_BLOCK | GROUP_HEADING,
+ GROUP_INLINE_ELEMENT),
+ ELEM(head, true, false, GROUP_TOPLEVEL, GROUP_HEAD_CONTENT),
+ ELEM(header, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(hgroup, true, false, GROUP_BLOCK, GROUP_HEADING),
+ ELEM(hr, false, false, GROUP_BLOCK, GROUP_NONE),
+ ELEM(html, true, false, GROUP_TOPLEVEL, GROUP_TOPLEVEL),
+ ELEM(i, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ ELEM(iframe, true, true, GROUP_SPECIAL | GROUP_BLOCK,
+ GROUP_FLOW_ELEMENT),
+ ELEM(image, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(img, false, false, GROUP_SPECIAL | GROUP_PICTURE_CONTENT, GROUP_NONE),
+ ELEM(input, false, false, GROUP_FORMCONTROL, GROUP_NONE),
+ ELEM(ins, true, true, GROUP_PHRASE | GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(kbd, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(keygen, false, false, GROUP_FORMCONTROL, GROUP_NONE),
+ ELEM(label, true, false, GROUP_FORMCONTROL, GROUP_INLINE_ELEMENT),
+ ELEM(legend, true, true, GROUP_NONE, GROUP_INLINE_ELEMENT),
+ ELEM(li, true, false, GROUP_LI, GROUP_FLOW_ELEMENT),
+ ELEM(link, false, false, GROUP_HEAD_CONTENT, GROUP_NONE),
+ ELEM(listing, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(main, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(map, true, true, GROUP_SPECIAL, GROUP_BLOCK | GROUP_MAP_CONTENT),
+ ELEM(mark, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(marquee, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(menu, true, true, GROUP_BLOCK, GROUP_LI | GROUP_FLOW_ELEMENT),
+ ELEM(menuitem, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(meta, false, false, GROUP_HEAD_CONTENT, GROUP_NONE),
+ ELEM(meter, true, false, GROUP_SPECIAL, GROUP_FLOW_ELEMENT),
+ ELEM(multicol, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(nav, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(nobr, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(noembed, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(noframes, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(noscript, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(object, true, true, GROUP_SPECIAL | GROUP_BLOCK,
+ GROUP_FLOW_ELEMENT | GROUP_OBJECT_CONTENT),
+ // XXX Can contain self and ul because editor does sublists illegally.
+ ELEM(ol, true, true, GROUP_BLOCK | GROUP_OL_UL,
+ GROUP_LI | GROUP_OL_UL),
+ ELEM(optgroup, true, false, GROUP_SELECT_CONTENT,
+ GROUP_OPTIONS),
+ ELEM(option, true, false,
+ GROUP_SELECT_CONTENT | GROUP_OPTIONS, GROUP_LEAF),
+ ELEM(output, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(p, true, false, GROUP_BLOCK | GROUP_P, GROUP_INLINE_ELEMENT),
+ ELEM(param, false, false, GROUP_OBJECT_CONTENT, GROUP_NONE),
+ ELEM(picture, true, false, GROUP_SPECIAL, GROUP_PICTURE_CONTENT),
+ ELEM(plaintext, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(pre, true, true, GROUP_BLOCK, GROUP_INLINE_ELEMENT),
+ ELEM(progress, true, false, GROUP_SPECIAL, GROUP_FLOW_ELEMENT),
+ ELEM(q, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(rb, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(rp, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(rt, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(rtc, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(ruby, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(s, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ ELEM(samp, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(script, true, false, GROUP_HEAD_CONTENT | GROUP_SPECIAL,
+ GROUP_LEAF),
+ ELEM(section, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(select, true, false, GROUP_FORMCONTROL, GROUP_SELECT_CONTENT),
+ ELEM(shadow, true, false, GROUP_NONE, GROUP_INLINE_ELEMENT),
+ ELEM(small, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ ELEM(source, false, false, GROUP_PICTURE_CONTENT, GROUP_NONE),
+ ELEM(span, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(strike, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ ELEM(strong, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(style, true, false, GROUP_HEAD_CONTENT, GROUP_LEAF),
+ ELEM(sub, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(summary, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
+ ELEM(sup, true, true, GROUP_SPECIAL, GROUP_INLINE_ELEMENT),
+ ELEM(table, true, false, GROUP_BLOCK, GROUP_TABLE_CONTENT),
+ ELEM(tbody, true, false, GROUP_TABLE_CONTENT, GROUP_TBODY_CONTENT),
+ ELEM(td, true, false, GROUP_TR_CONTENT, GROUP_FLOW_ELEMENT),
+ ELEM(textarea, true, false, GROUP_FORMCONTROL, GROUP_LEAF),
+ ELEM(tfoot, true, false, GROUP_NONE, GROUP_TBODY_CONTENT),
+ ELEM(th, true, false, GROUP_TR_CONTENT, GROUP_FLOW_ELEMENT),
+ ELEM(thead, true, false, GROUP_NONE, GROUP_TBODY_CONTENT),
+ ELEM(template, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(time, true, false, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(title, true, false, GROUP_HEAD_CONTENT, GROUP_LEAF),
+ ELEM(tr, true, false, GROUP_TBODY_CONTENT, GROUP_TR_CONTENT),
+ ELEM(track, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(tt, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ ELEM(u, true, true, GROUP_FONTSTYLE, GROUP_INLINE_ELEMENT),
+ // XXX Can contain self and ol because editor does sublists illegally.
+ ELEM(ul, true, true, GROUP_BLOCK | GROUP_OL_UL,
+ GROUP_LI | GROUP_OL_UL),
+ ELEM(var, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
+ ELEM(video, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(wbr, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(xmp, false, false, GROUP_NONE, GROUP_NONE),
+
+ // These aren't elements.
+ ELEM(text, false, false, GROUP_LEAF, GROUP_NONE),
+ ELEM(whitespace, false, false, GROUP_LEAF, GROUP_NONE),
+ ELEM(newline, false, false, GROUP_LEAF, GROUP_NONE),
+ ELEM(comment, false, false, GROUP_LEAF, GROUP_NONE),
+ ELEM(entity, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(doctypeDecl, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(markupDecl, false, false, GROUP_NONE, GROUP_NONE),
+ ELEM(instruction, false, false, GROUP_NONE, GROUP_NONE),
+
+ ELEM(userdefined, true, false, GROUP_NONE, GROUP_FLOW_ELEMENT)
+};
+
+bool
+HTMLEditUtils::CanContain(int32_t aParent, int32_t aChild)
+{
+ NS_ASSERTION(aParent > eHTMLTag_unknown && aParent <= eHTMLTag_userdefined,
+ "aParent out of range!");
+ NS_ASSERTION(aChild > eHTMLTag_unknown && aChild <= eHTMLTag_userdefined,
+ "aChild out of range!");
+
+#ifdef DEBUG
+ static bool checked = false;
+ if (!checked) {
+ checked = true;
+ int32_t i;
+ for (i = 1; i <= eHTMLTag_userdefined; ++i) {
+ NS_ASSERTION(kElements[i - 1].mTag == i,
+ "You need to update kElements (missing tags).");
+ }
+ }
+#endif
+
+ // Special-case button.
+ if (aParent == eHTMLTag_button) {
+ static const eHTMLTags kButtonExcludeKids[] = {
+ eHTMLTag_a,
+ eHTMLTag_fieldset,
+ eHTMLTag_form,
+ eHTMLTag_iframe,
+ eHTMLTag_input,
+ eHTMLTag_select,
+ eHTMLTag_textarea
+ };
+
+ uint32_t j;
+ for (j = 0; j < ArrayLength(kButtonExcludeKids); ++j) {
+ if (kButtonExcludeKids[j] == aChild) {
+ return false;
+ }
+ }
+ }
+
+ // Deprecated elements.
+ if (aChild == eHTMLTag_bgsound) {
+ return false;
+ }
+
+ // Bug #67007, dont strip userdefined tags.
+ if (aChild == eHTMLTag_userdefined) {
+ return true;
+ }
+
+ const ElementInfo& parent = kElements[aParent - 1];
+ if (aParent == aChild) {
+ return parent.mCanContainSelf;
+ }
+
+ const ElementInfo& child = kElements[aChild - 1];
+ return (parent.mCanContainGroups & child.mGroup) != 0;
+}
+
+bool
+HTMLEditUtils::IsContainer(int32_t aTag)
+{
+ NS_ASSERTION(aTag > eHTMLTag_unknown && aTag <= eHTMLTag_userdefined,
+ "aTag out of range!");
+
+ return kElements[aTag - 1].mIsContainer;
+}
+
+} // namespace mozilla