LCOV - code coverage report
Current view: directory - content/html/content/src - nsHTMLTableCellElement.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 157 0 0.0 %
Date: 2012-06-02 Functions: 142 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla Communicator client code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "mozilla/Util.h"
      39                 : 
      40                 : #include "nsIDOMHTMLTableCellElement.h"
      41                 : #include "nsIDOMHTMLTableRowElement.h"
      42                 : #include "nsHTMLTableElement.h"
      43                 : #include "nsIDOMHTMLCollection.h"
      44                 : #include "nsIDOMEventTarget.h"
      45                 : #include "nsMappedAttributes.h"
      46                 : #include "nsGenericHTMLElement.h"
      47                 : #include "nsGkAtoms.h"
      48                 : #include "nsStyleConsts.h"
      49                 : #include "nsPresContext.h"
      50                 : #include "nsRuleData.h"
      51                 : #include "nsRuleWalker.h"
      52                 : #include "nsIDocument.h"
      53                 : #include "celldata.h"
      54                 : 
      55                 : using namespace mozilla;
      56                 : 
      57                 : class nsHTMLTableCellElement : public nsGenericHTMLElement,
      58                 :                                public nsIDOMHTMLTableCellElement
      59                 : {
      60                 : public:
      61                 :   nsHTMLTableCellElement(already_AddRefed<nsINodeInfo> aNodeInfo);
      62                 :   virtual ~nsHTMLTableCellElement();
      63                 : 
      64                 :   // nsISupports
      65                 :   NS_DECL_ISUPPORTS_INHERITED
      66                 : 
      67                 :   // nsIDOMNode
      68               0 :   NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
      69                 : 
      70                 :   // nsIDOMElement
      71               0 :   NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
      72                 : 
      73                 :   // nsIDOMHTMLElement
      74               0 :   NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
      75                 : 
      76                 :   // nsIDOMHTMLTableCellElement
      77                 :   NS_DECL_NSIDOMHTMLTABLECELLELEMENT
      78                 : 
      79                 :   virtual bool ParseAttribute(PRInt32 aNamespaceID,
      80                 :                                 nsIAtom* aAttribute,
      81                 :                                 const nsAString& aValue,
      82                 :                                 nsAttrValue& aResult);
      83                 :   virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
      84                 :   NS_IMETHOD WalkContentStyleRules(nsRuleWalker* aRuleWalker);
      85                 :   NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const;
      86                 : 
      87                 :   virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
      88                 : 
      89                 :   virtual nsXPCClassInfo* GetClassInfo();
      90                 : protected:
      91                 :   nsHTMLTableElement* GetTable() const;
      92                 : 
      93                 :   already_AddRefed<nsIDOMHTMLTableRowElement> GetRow() const;
      94                 : };
      95                 : 
      96                 : 
      97               0 : NS_IMPL_NS_NEW_HTML_ELEMENT(TableCell)
      98                 : 
      99                 : 
     100               0 : nsHTMLTableCellElement::nsHTMLTableCellElement(already_AddRefed<nsINodeInfo> aNodeInfo)
     101               0 :   : nsGenericHTMLElement(aNodeInfo)
     102                 : {
     103               0 : }
     104                 : 
     105               0 : nsHTMLTableCellElement::~nsHTMLTableCellElement()
     106                 : {
     107               0 : }
     108                 : 
     109                 : 
     110               0 : NS_IMPL_ADDREF_INHERITED(nsHTMLTableCellElement, nsGenericElement) 
     111               0 : NS_IMPL_RELEASE_INHERITED(nsHTMLTableCellElement, nsGenericElement) 
     112                 : 
     113                 : 
     114               0 : DOMCI_NODE_DATA(HTMLTableCellElement, nsHTMLTableCellElement)
     115                 : 
     116                 : // QueryInterface implementation for nsHTMLTableCellElement
     117               0 : NS_INTERFACE_TABLE_HEAD(nsHTMLTableCellElement)
     118               0 :   NS_HTML_CONTENT_INTERFACE_TABLE1(nsHTMLTableCellElement,
     119                 :                                    nsIDOMHTMLTableCellElement)
     120               0 :   NS_HTML_CONTENT_INTERFACE_TABLE_TO_MAP_SEGUE(nsHTMLTableCellElement,
     121                 :                                                nsGenericHTMLElement)
     122               0 : NS_HTML_CONTENT_INTERFACE_TABLE_TAIL_CLASSINFO(HTMLTableCellElement)
     123                 : 
     124                 : 
     125               0 : NS_IMPL_ELEMENT_CLONE(nsHTMLTableCellElement)
     126                 : 
     127                 : 
     128                 : // protected method
     129                 : already_AddRefed<nsIDOMHTMLTableRowElement>
     130               0 : nsHTMLTableCellElement::GetRow() const
     131                 : {
     132               0 :   nsCOMPtr<nsIDOMHTMLTableRowElement> row = do_QueryInterface(GetParent());
     133               0 :   return row.forget();
     134                 : }
     135                 : 
     136                 : // protected method
     137                 : nsHTMLTableElement*
     138               0 : nsHTMLTableCellElement::GetTable() const
     139                 : {
     140               0 :   nsIContent *parent = GetParent();
     141               0 :   if (!parent) {
     142               0 :     return nsnull;
     143                 :   }
     144                 : 
     145                 :   // parent should be a row.
     146               0 :   nsIContent* section = parent->GetParent();
     147               0 :   if (!section) {
     148               0 :     return nsnull;
     149                 :   }
     150                 : 
     151               0 :   if (section->IsHTML(nsGkAtoms::table)) {
     152                 :     // XHTML, without a row group.
     153               0 :     return static_cast<nsHTMLTableElement*>(section);
     154                 :   }
     155                 : 
     156                 :   // We have a row group.
     157               0 :   nsIContent* result = section->GetParent();
     158               0 :   if (result && result->IsHTML(nsGkAtoms::table)) {
     159               0 :     return static_cast<nsHTMLTableElement*>(result);
     160                 :   }
     161                 : 
     162               0 :   return nsnull;
     163                 : }
     164                 : 
     165                 : NS_IMETHODIMP
     166               0 : nsHTMLTableCellElement::GetCellIndex(PRInt32* aCellIndex)
     167                 : {
     168               0 :   *aCellIndex = -1;
     169                 : 
     170               0 :   nsCOMPtr<nsIDOMHTMLTableRowElement> row = GetRow();
     171               0 :   if (!row) {
     172               0 :     return NS_OK;
     173                 :   }
     174                 : 
     175               0 :   nsCOMPtr<nsIDOMHTMLCollection> cells;
     176                 : 
     177               0 :   row->GetCells(getter_AddRefs(cells));
     178                 : 
     179               0 :   if (!cells) {
     180               0 :     return NS_OK;
     181                 :   }
     182                 : 
     183                 :   PRUint32 numCells;
     184               0 :   cells->GetLength(&numCells);
     185                 : 
     186               0 :   for (PRUint32 i = 0; i < numCells; i++) {
     187               0 :     nsCOMPtr<nsIDOMNode> node;
     188               0 :     cells->Item(i, getter_AddRefs(node));
     189                 : 
     190               0 :     if (node.get() == static_cast<nsIDOMNode *>(this)) {
     191               0 :       *aCellIndex = i;
     192                 :       break;
     193                 :     }
     194                 :   }
     195                 : 
     196               0 :   return NS_OK;
     197                 : }
     198                 : 
     199                 : 
     200                 : NS_IMETHODIMP
     201               0 : nsHTMLTableCellElement::WalkContentStyleRules(nsRuleWalker* aRuleWalker)
     202                 : {
     203               0 :   nsresult rv = nsGenericHTMLElement::WalkContentStyleRules(aRuleWalker);
     204               0 :   NS_ENSURE_SUCCESS(rv, rv);
     205                 : 
     206               0 :   if (nsHTMLTableElement* table = GetTable()) {
     207                 :     nsMappedAttributes* tableInheritedAttributes =
     208               0 :       table->GetAttributesMappedForCell();
     209               0 :     if (tableInheritedAttributes) {
     210               0 :       aRuleWalker->Forward(tableInheritedAttributes);
     211                 :     }
     212                 :   }
     213               0 :   return NS_OK;
     214                 : }
     215                 : 
     216                 : 
     217               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Abbr, abbr)
     218               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Axis, axis)
     219               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, BgColor, bgcolor)
     220               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Ch, _char)
     221               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, ChOff, charoff)
     222               0 : NS_IMPL_INT_ATTR_DEFAULT_VALUE(nsHTMLTableCellElement, ColSpan, colspan, 1)
     223               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Headers, headers)
     224               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Height, height)
     225               0 : NS_IMPL_BOOL_ATTR(nsHTMLTableCellElement, NoWrap, nowrap)
     226               0 : NS_IMPL_INT_ATTR_DEFAULT_VALUE(nsHTMLTableCellElement, RowSpan, rowspan, 1)
     227               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Scope, scope)
     228               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, VAlign, valign)
     229               0 : NS_IMPL_STRING_ATTR(nsHTMLTableCellElement, Width, width)
     230                 : 
     231                 : 
     232                 : NS_IMETHODIMP
     233               0 : nsHTMLTableCellElement::GetAlign(nsAString& aValue)
     234                 : {
     235               0 :   if (!GetAttr(kNameSpaceID_None, nsGkAtoms::align, aValue)) {
     236                 :     // There's no align attribute, ask the row for the alignment.
     237               0 :     nsCOMPtr<nsIDOMHTMLTableRowElement> row = GetRow();
     238               0 :     if (row) {
     239               0 :       return row->GetAlign(aValue);
     240                 :     }
     241                 :   }
     242                 : 
     243               0 :   return NS_OK;
     244                 : }
     245                 : 
     246                 : NS_IMETHODIMP
     247               0 : nsHTMLTableCellElement::SetAlign(const nsAString& aValue)
     248                 : {
     249               0 :   return SetAttr(kNameSpaceID_None, nsGkAtoms::align, aValue, true);
     250                 : }
     251                 : 
     252                 : 
     253                 : static const nsAttrValue::EnumTable kCellScopeTable[] = {
     254                 :   { "row",      NS_STYLE_CELL_SCOPE_ROW },
     255                 :   { "col",      NS_STYLE_CELL_SCOPE_COL },
     256                 :   { "rowgroup", NS_STYLE_CELL_SCOPE_ROWGROUP },
     257                 :   { "colgroup", NS_STYLE_CELL_SCOPE_COLGROUP },
     258                 :   { 0 }
     259                 : };
     260                 : 
     261                 : bool
     262               0 : nsHTMLTableCellElement::ParseAttribute(PRInt32 aNamespaceID,
     263                 :                                        nsIAtom* aAttribute,
     264                 :                                        const nsAString& aValue,
     265                 :                                        nsAttrValue& aResult)
     266                 : {
     267               0 :   if (aNamespaceID == kNameSpaceID_None) {
     268                 :     /* ignore these attributes, stored simply as strings
     269                 :        abbr, axis, ch, headers
     270                 :     */
     271               0 :     if (aAttribute == nsGkAtoms::charoff) {
     272                 :       /* attributes that resolve to integers with a min of 0 */
     273               0 :       return aResult.ParseIntWithBounds(aValue, 0);
     274                 :     }
     275               0 :     if (aAttribute == nsGkAtoms::colspan) {
     276               0 :       bool res = aResult.ParseIntWithBounds(aValue, -1);
     277               0 :       if (res) {
     278               0 :         PRInt32 val = aResult.GetIntegerValue();
     279                 :         // reset large colspan values as IE and opera do
     280                 :         // quirks mode does not honor the special html 4 value of 0
     281               0 :         if (val > MAX_COLSPAN || val < 0 ||
     282               0 :             (0 == val && InNavQuirksMode(OwnerDoc()))) {
     283               0 :           aResult.SetTo(1);
     284                 :         }
     285                 :       }
     286               0 :       return res;
     287                 :     }
     288               0 :     if (aAttribute == nsGkAtoms::rowspan) {
     289               0 :       bool res = aResult.ParseIntWithBounds(aValue, -1, MAX_ROWSPAN);
     290               0 :       if (res) {
     291               0 :         PRInt32 val = aResult.GetIntegerValue();
     292                 :         // quirks mode does not honor the special html 4 value of 0
     293               0 :         if (val < 0 || (0 == val && InNavQuirksMode(OwnerDoc()))) {
     294               0 :           aResult.SetTo(1);
     295                 :         }
     296                 :       }
     297               0 :       return res;
     298                 :     }
     299               0 :     if (aAttribute == nsGkAtoms::height) {
     300               0 :       return aResult.ParseSpecialIntValue(aValue);
     301                 :     }
     302               0 :     if (aAttribute == nsGkAtoms::width) {
     303               0 :       return aResult.ParseSpecialIntValue(aValue);
     304                 :     }
     305               0 :     if (aAttribute == nsGkAtoms::align) {
     306               0 :       return ParseTableCellHAlignValue(aValue, aResult);
     307                 :     }
     308               0 :     if (aAttribute == nsGkAtoms::bgcolor) {
     309               0 :       return aResult.ParseColor(aValue);
     310                 :     }
     311               0 :     if (aAttribute == nsGkAtoms::scope) {
     312               0 :       return aResult.ParseEnumValue(aValue, kCellScopeTable, false);
     313                 :     }
     314               0 :     if (aAttribute == nsGkAtoms::valign) {
     315               0 :       return ParseTableVAlignValue(aValue, aResult);
     316                 :     }
     317                 :   }
     318                 : 
     319                 :   return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
     320               0 :                                               aResult);
     321                 : }
     322                 : 
     323                 : static 
     324               0 : void MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
     325                 :                            nsRuleData* aData)
     326                 : {
     327               0 :   if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Position)) {
     328                 :     // width: value
     329               0 :     nsCSSValue* width = aData->ValueForWidth();
     330               0 :     if (width->GetUnit() == eCSSUnit_Null) {
     331               0 :       const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
     332               0 :       if (value && value->Type() == nsAttrValue::eInteger) {
     333               0 :         if (value->GetIntegerValue() > 0)
     334               0 :           width->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel); 
     335                 :         // else 0 implies auto for compatibility.
     336                 :       }
     337               0 :       else if (value && value->Type() == nsAttrValue::ePercent) {
     338               0 :         if (value->GetPercentValue() > 0.0f)
     339               0 :           width->SetPercentValue(value->GetPercentValue());
     340                 :         // else 0 implies auto for compatibility
     341                 :       }
     342                 :     }
     343                 : 
     344                 :     // height: value
     345               0 :     nsCSSValue* height = aData->ValueForHeight();
     346               0 :     if (height->GetUnit() == eCSSUnit_Null) {
     347               0 :       const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::height);
     348               0 :       if (value && value->Type() == nsAttrValue::eInteger) {
     349               0 :         if (value->GetIntegerValue() > 0)
     350               0 :           height->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
     351                 :         // else 0 implies auto for compatibility.
     352                 :       }
     353               0 :       else if (value && value->Type() == nsAttrValue::ePercent) {
     354               0 :         if (value->GetPercentValue() > 0.0f)
     355               0 :           height->SetPercentValue(value->GetPercentValue());
     356                 :         // else 0 implies auto for compatibility
     357                 :       }
     358                 :     }
     359                 :   }
     360               0 :   if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Text)) {
     361               0 :     nsCSSValue* textAlign = aData->ValueForTextAlign();
     362               0 :     if (textAlign->GetUnit() == eCSSUnit_Null) {
     363                 :       // align: enum
     364               0 :       const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
     365               0 :       if (value && value->Type() == nsAttrValue::eEnum)
     366               0 :         textAlign->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
     367                 :     }
     368                 : 
     369               0 :     nsCSSValue* whiteSpace = aData->ValueForWhiteSpace();
     370               0 :     if (whiteSpace->GetUnit() == eCSSUnit_Null) {
     371                 :       // nowrap: enum
     372               0 :       if (aAttributes->GetAttr(nsGkAtoms::nowrap)) {
     373                 :         // See if our width is not a nonzero integer width.
     374               0 :         const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
     375               0 :         nsCompatibility mode = aData->mPresContext->CompatibilityMode();
     376               0 :         if (!value || value->Type() != nsAttrValue::eInteger ||
     377               0 :             value->GetIntegerValue() == 0 ||
     378                 :             eCompatibility_NavQuirks != mode) {
     379               0 :           whiteSpace->SetIntValue(NS_STYLE_WHITESPACE_NOWRAP, eCSSUnit_Enumerated);
     380                 :         }
     381                 :       }
     382                 :     }
     383                 :   }
     384               0 :   if (aData->mSIDs & NS_STYLE_INHERIT_BIT(TextReset)) {
     385               0 :     nsCSSValue* verticalAlign = aData->ValueForVerticalAlign();
     386               0 :     if (verticalAlign->GetUnit() == eCSSUnit_Null) {
     387                 :       // valign: enum
     388               0 :       const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::valign);
     389               0 :       if (value && value->Type() == nsAttrValue::eEnum)
     390               0 :         verticalAlign->SetIntValue(value->GetEnumValue(), eCSSUnit_Enumerated);
     391                 :     }
     392                 :   }
     393                 :   
     394               0 :   nsGenericHTMLElement::MapBackgroundAttributesInto(aAttributes, aData);
     395               0 :   nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
     396               0 : }
     397                 : 
     398                 : NS_IMETHODIMP_(bool)
     399               0 : nsHTMLTableCellElement::IsAttributeMapped(const nsIAtom* aAttribute) const
     400                 : {
     401                 :   static const MappedAttributeEntry attributes[] = {
     402                 :     { &nsGkAtoms::align }, 
     403                 :     { &nsGkAtoms::valign },
     404                 :     { &nsGkAtoms::nowrap },
     405                 : #if 0
     406                 :     // XXXldb If these are implemented, they might need to move to
     407                 :     // GetAttributeChangeHint (depending on how, and preferably not).
     408                 :     { &nsGkAtoms::abbr },
     409                 :     { &nsGkAtoms::axis },
     410                 :     { &nsGkAtoms::headers },
     411                 :     { &nsGkAtoms::scope },
     412                 : #endif
     413                 :     { &nsGkAtoms::width },
     414                 :     { &nsGkAtoms::height },
     415                 :     { nsnull }
     416                 :   };
     417                 : 
     418                 :   static const MappedAttributeEntry* const map[] = {
     419                 :     attributes,
     420                 :     sCommonAttributeMap,
     421                 :     sBackgroundAttributeMap,
     422                 :   };
     423                 : 
     424               0 :   return FindAttributeDependence(aAttribute, map);
     425                 : }
     426                 : 
     427                 : nsMapRuleToAttributesFunc
     428               0 : nsHTMLTableCellElement::GetAttributeMappingFunction() const
     429                 : {
     430               0 :   return &MapAttributesIntoRule;
     431                 : }

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