LCOV - code coverage report
Current view: directory - content/html/content/src - nsHTMLFrameSetElement.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 148 0 0.0 %
Date: 2012-06-02 Functions: 19 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 "nsHTMLFrameSetElement.h"
      39                 : #include "jsapi.h"
      40                 : 
      41               0 : NS_IMPL_NS_NEW_HTML_ELEMENT(FrameSet)
      42                 : 
      43                 : 
      44               0 : nsHTMLFrameSetElement::nsHTMLFrameSetElement(already_AddRefed<nsINodeInfo> aNodeInfo)
      45                 :   : nsGenericHTMLElement(aNodeInfo), mNumRows(0), mNumCols(0),
      46               0 :     mCurrentRowColHint(NS_STYLE_HINT_REFLOW)
      47                 : {
      48               0 : }
      49                 : 
      50               0 : nsHTMLFrameSetElement::~nsHTMLFrameSetElement()
      51                 : {
      52               0 : }
      53                 : 
      54                 : 
      55               0 : NS_IMPL_ADDREF_INHERITED(nsHTMLFrameSetElement, nsGenericElement) 
      56               0 : NS_IMPL_RELEASE_INHERITED(nsHTMLFrameSetElement, nsGenericElement) 
      57                 : 
      58                 : 
      59               0 : DOMCI_NODE_DATA(HTMLFrameSetElement, nsHTMLFrameSetElement)
      60                 : 
      61                 : // QueryInterface implementation for nsHTMLFrameSetElement
      62               0 : NS_INTERFACE_TABLE_HEAD(nsHTMLFrameSetElement)
      63               0 :   NS_HTML_CONTENT_INTERFACE_TABLE1(nsHTMLFrameSetElement,
      64                 :                                    nsIDOMHTMLFrameSetElement)
      65               0 :   NS_HTML_CONTENT_INTERFACE_TABLE_TO_MAP_SEGUE(nsHTMLFrameSetElement,
      66                 :                                                nsGenericHTMLElement)
      67               0 : NS_HTML_CONTENT_INTERFACE_TABLE_TAIL_CLASSINFO(HTMLFrameSetElement)
      68                 : 
      69                 : 
      70               0 : NS_IMPL_ELEMENT_CLONE(nsHTMLFrameSetElement)
      71                 : 
      72                 : 
      73               0 : NS_IMPL_STRING_ATTR(nsHTMLFrameSetElement, Cols, cols)
      74               0 : NS_IMPL_STRING_ATTR(nsHTMLFrameSetElement, Rows, rows)
      75                 : 
      76                 : nsresult
      77               0 : nsHTMLFrameSetElement::SetAttr(PRInt32 aNameSpaceID,
      78                 :                                nsIAtom* aAttribute,
      79                 :                                nsIAtom* aPrefix,
      80                 :                                const nsAString& aValue,
      81                 :                                bool aNotify)
      82                 : {
      83                 :   nsresult rv;
      84                 :   /* The main goal here is to see whether the _number_ of rows or
      85                 :    *  columns has changed.  If it has, we need to reframe; otherwise
      86                 :    *  we want to reflow.  So we set mCurrentRowColHint here, then call
      87                 :    *  nsGenericHTMLElement::SetAttr, which will end up calling
      88                 :    *  GetAttributeChangeHint and notifying layout with that hint.
      89                 :    *  Once nsGenericHTMLElement::SetAttr returns, we want to go back to our
      90                 :    *  normal hint, which is NS_STYLE_HINT_REFLOW.
      91                 :    */
      92               0 :   if (aAttribute == nsGkAtoms::rows && aNameSpaceID == kNameSpaceID_None) {
      93               0 :     PRInt32 oldRows = mNumRows;
      94               0 :     ParseRowCol(aValue, mNumRows, getter_Transfers(mRowSpecs));
      95                 :     
      96               0 :     if (mNumRows != oldRows) {
      97               0 :       mCurrentRowColHint = NS_STYLE_HINT_FRAMECHANGE;
      98               0 :     }
      99               0 :   } else if (aAttribute == nsGkAtoms::cols &&
     100                 :              aNameSpaceID == kNameSpaceID_None) {
     101               0 :     PRInt32 oldCols = mNumCols;
     102               0 :     ParseRowCol(aValue, mNumCols, getter_Transfers(mColSpecs));
     103                 : 
     104               0 :     if (mNumCols != oldCols) {
     105               0 :       mCurrentRowColHint = NS_STYLE_HINT_FRAMECHANGE;
     106                 :     }
     107                 :   }
     108                 :   
     109                 :   rv = nsGenericHTMLElement::SetAttr(aNameSpaceID, aAttribute, aPrefix,
     110               0 :                                      aValue, aNotify);
     111               0 :   mCurrentRowColHint = NS_STYLE_HINT_REFLOW;
     112                 :   
     113               0 :   return rv;
     114                 : }
     115                 : 
     116                 : nsresult
     117               0 : nsHTMLFrameSetElement::GetRowSpec(PRInt32 *aNumValues,
     118                 :                                   const nsFramesetSpec** aSpecs)
     119                 : {
     120               0 :   NS_PRECONDITION(aNumValues, "Must have a pointer to an integer here!");
     121               0 :   NS_PRECONDITION(aSpecs, "Must have a pointer to an array of nsFramesetSpecs");
     122               0 :   *aNumValues = 0;
     123               0 :   *aSpecs = nsnull;
     124                 :   
     125               0 :   if (!mRowSpecs) {
     126               0 :     const nsAttrValue* value = GetParsedAttr(nsGkAtoms::rows);
     127               0 :     if (value && value->Type() == nsAttrValue::eString) {
     128               0 :       nsresult rv = ParseRowCol(value->GetStringValue(), mNumRows,
     129               0 :                                 getter_Transfers(mRowSpecs));
     130               0 :       NS_ENSURE_SUCCESS(rv, rv);
     131                 :     }
     132                 : 
     133               0 :     if (!mRowSpecs) {  // we may not have had an attr or had an empty attr
     134               0 :       mRowSpecs = new nsFramesetSpec[1];
     135               0 :       if (!mRowSpecs) {
     136               0 :         mNumRows = 0;
     137               0 :         return NS_ERROR_OUT_OF_MEMORY;
     138                 :       }
     139               0 :       mNumRows = 1;
     140               0 :       mRowSpecs[0].mUnit  = eFramesetUnit_Relative;
     141               0 :       mRowSpecs[0].mValue = 1;
     142                 :     }
     143                 :   }
     144                 : 
     145               0 :   *aSpecs = mRowSpecs;
     146               0 :   *aNumValues = mNumRows;
     147               0 :   return NS_OK;
     148                 : }
     149                 : 
     150                 : nsresult
     151               0 : nsHTMLFrameSetElement::GetColSpec(PRInt32 *aNumValues,
     152                 :                                   const nsFramesetSpec** aSpecs)
     153                 : {
     154               0 :   NS_PRECONDITION(aNumValues, "Must have a pointer to an integer here!");
     155               0 :   NS_PRECONDITION(aSpecs, "Must have a pointer to an array of nsFramesetSpecs");
     156               0 :   *aNumValues = 0;
     157               0 :   *aSpecs = nsnull;
     158                 : 
     159               0 :   if (!mColSpecs) {
     160               0 :     const nsAttrValue* value = GetParsedAttr(nsGkAtoms::cols);
     161               0 :     if (value && value->Type() == nsAttrValue::eString) {
     162               0 :       nsresult rv = ParseRowCol(value->GetStringValue(), mNumCols,
     163               0 :                                 getter_Transfers(mColSpecs));
     164               0 :       NS_ENSURE_SUCCESS(rv, rv);
     165                 :     }
     166                 : 
     167               0 :     if (!mColSpecs) {  // we may not have had an attr or had an empty attr
     168               0 :       mColSpecs = new nsFramesetSpec[1];
     169               0 :       if (!mColSpecs) {
     170               0 :         mNumCols = 0;
     171               0 :         return NS_ERROR_OUT_OF_MEMORY;
     172                 :       }
     173               0 :       mNumCols = 1;
     174               0 :       mColSpecs[0].mUnit  = eFramesetUnit_Relative;
     175               0 :       mColSpecs[0].mValue = 1;
     176                 :     }
     177                 :   }
     178                 : 
     179               0 :   *aSpecs = mColSpecs;
     180               0 :   *aNumValues = mNumCols;
     181               0 :   return NS_OK;
     182                 : }
     183                 : 
     184                 : 
     185                 : bool
     186               0 : nsHTMLFrameSetElement::ParseAttribute(PRInt32 aNamespaceID,
     187                 :                                       nsIAtom* aAttribute,
     188                 :                                       const nsAString& aValue,
     189                 :                                       nsAttrValue& aResult)
     190                 : {
     191               0 :   if (aNamespaceID == kNameSpaceID_None) {
     192               0 :     if (aAttribute == nsGkAtoms::bordercolor) {
     193               0 :       return aResult.ParseColor(aValue);
     194                 :     }
     195               0 :     if (aAttribute == nsGkAtoms::frameborder) {
     196               0 :       return nsGenericHTMLElement::ParseFrameborderValue(aValue, aResult);
     197                 :     }
     198               0 :     if (aAttribute == nsGkAtoms::border) {
     199               0 :       return aResult.ParseIntWithBounds(aValue, 0, 100);
     200                 :     }
     201                 :   }
     202                 :   
     203                 :   return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
     204               0 :                                               aResult);
     205                 : }
     206                 : 
     207                 : nsChangeHint
     208               0 : nsHTMLFrameSetElement::GetAttributeChangeHint(const nsIAtom* aAttribute,
     209                 :                                               PRInt32 aModType) const
     210                 : {
     211                 :   nsChangeHint retval =
     212               0 :     nsGenericHTMLElement::GetAttributeChangeHint(aAttribute, aModType);
     213               0 :   if (aAttribute == nsGkAtoms::rows ||
     214                 :       aAttribute == nsGkAtoms::cols) {
     215               0 :     NS_UpdateHint(retval, mCurrentRowColHint);
     216                 :   }
     217               0 :   return retval;
     218                 : }
     219                 : 
     220                 : /**
     221                 :  * Translate a "rows" or "cols" spec into an array of nsFramesetSpecs
     222                 :  */
     223                 : nsresult
     224               0 : nsHTMLFrameSetElement::ParseRowCol(const nsAString & aValue,
     225                 :                                    PRInt32& aNumSpecs,
     226                 :                                    nsFramesetSpec** aSpecs) 
     227                 : {
     228               0 :   if (aValue.IsEmpty()) {
     229               0 :     aNumSpecs = 0;
     230               0 :     *aSpecs = nsnull;
     231               0 :     return NS_OK;
     232                 :   }
     233                 : 
     234                 :   static const PRUnichar sAster('*');
     235                 :   static const PRUnichar sPercent('%');
     236                 :   static const PRUnichar sComma(',');
     237                 : 
     238               0 :   nsAutoString spec(aValue);
     239                 :   // remove whitespace (Bug 33699) and quotation marks (bug 224598)
     240                 :   // also remove leading/trailing commas (bug 31482)
     241               0 :   spec.StripChars(" \n\r\t\"\'");
     242               0 :   spec.Trim(",");
     243                 :   
     244                 :   // Count the commas. Don't count more than X commas (bug 576447).
     245                 :   PR_STATIC_ASSERT(NS_MAX_FRAMESET_SPEC_COUNT * sizeof(nsFramesetSpec) < (1 << 30));
     246               0 :   PRInt32 commaX = spec.FindChar(sComma);
     247               0 :   PRInt32 count = 1;
     248               0 :   while (commaX != kNotFound && count < NS_MAX_FRAMESET_SPEC_COUNT) {
     249               0 :     count++;
     250               0 :     commaX = spec.FindChar(sComma, commaX + 1);
     251                 :   }
     252                 : 
     253               0 :   nsFramesetSpec* specs = new nsFramesetSpec[count];
     254               0 :   if (!specs) {
     255               0 :     *aSpecs = nsnull;
     256               0 :     aNumSpecs = 0;
     257               0 :     return NS_ERROR_OUT_OF_MEMORY;
     258                 :   }
     259                 : 
     260                 :   // Pre-grab the compat mode; we may need it later in the loop.
     261               0 :   bool isInQuirks = InNavQuirksMode(OwnerDoc());
     262                 :       
     263                 :   // Parse each comma separated token
     264                 : 
     265               0 :   PRInt32 start = 0;
     266               0 :   PRInt32 specLen = spec.Length();
     267                 : 
     268               0 :   for (PRInt32 i = 0; i < count; i++) {
     269                 :     // Find our comma
     270               0 :     commaX = spec.FindChar(sComma, start);
     271               0 :     NS_ASSERTION(i == count - 1 || commaX != kNotFound,
     272                 :                  "Failed to find comma, somehow");
     273               0 :     PRInt32 end = (commaX == kNotFound) ? specLen : commaX;
     274                 : 
     275                 :     // Note: If end == start then it means that the token has no
     276                 :     // data in it other than a terminating comma (or the end of the spec).
     277                 :     // So default to a fixed width of 0.
     278               0 :     specs[i].mUnit = eFramesetUnit_Fixed;
     279               0 :     specs[i].mValue = 0;
     280               0 :     if (end > start) {
     281               0 :       PRInt32 numberEnd = end;
     282               0 :       PRUnichar ch = spec.CharAt(numberEnd - 1);
     283               0 :       if (sAster == ch) {
     284               0 :         specs[i].mUnit = eFramesetUnit_Relative;
     285               0 :         numberEnd--;
     286               0 :       } else if (sPercent == ch) {
     287               0 :         specs[i].mUnit = eFramesetUnit_Percent;
     288               0 :         numberEnd--;
     289                 :         // check for "*%"
     290               0 :         if (numberEnd > start) {
     291               0 :           ch = spec.CharAt(numberEnd - 1);
     292               0 :           if (sAster == ch) {
     293               0 :             specs[i].mUnit = eFramesetUnit_Relative;
     294               0 :             numberEnd--;
     295                 :           }
     296                 :         }
     297                 :       }
     298                 : 
     299                 :       // Translate value to an integer
     300               0 :       nsAutoString token;
     301               0 :       spec.Mid(token, start, numberEnd - start);
     302                 : 
     303                 :       // Treat * as 1*
     304               0 :       if ((eFramesetUnit_Relative == specs[i].mUnit) &&
     305               0 :         (0 == token.Length())) {
     306               0 :         specs[i].mValue = 1;
     307                 :       }
     308                 :       else {
     309                 :         // Otherwise just convert to integer.
     310                 :         PRInt32 err;
     311               0 :         specs[i].mValue = token.ToInteger(&err);
     312               0 :         if (err) {
     313               0 :           specs[i].mValue = 0;
     314                 :         }
     315                 :       }
     316                 : 
     317                 :       // Treat 0* as 1* in quirks mode (bug 40383)
     318               0 :       if (isInQuirks) {
     319               0 :         if ((eFramesetUnit_Relative == specs[i].mUnit) &&
     320               0 :           (0 == specs[i].mValue)) {
     321               0 :           specs[i].mValue = 1;
     322                 :         }
     323                 :       }
     324                 :         
     325                 :       // Catch zero and negative frame sizes for Nav compatibility
     326                 :       // Nav resized absolute and relative frames to "1" and
     327                 :       // percent frames to an even percentage of the width
     328                 :       //
     329                 :       //if (isInQuirks && (specs[i].mValue <= 0)) {
     330                 :       //  if (eFramesetUnit_Percent == specs[i].mUnit) {
     331                 :       //    specs[i].mValue = 100 / count;
     332                 :       //  } else {
     333                 :       //    specs[i].mValue = 1;
     334                 :       //  }
     335                 :       //} else {
     336                 : 
     337                 :       // In standards mode, just set negative sizes to zero
     338               0 :       if (specs[i].mValue < 0) {
     339               0 :         specs[i].mValue = 0;
     340                 :       }
     341               0 :       start = end + 1;
     342                 :     }
     343                 :   }
     344                 : 
     345               0 :   aNumSpecs = count;
     346                 :   // Transfer ownership to caller here
     347               0 :   *aSpecs = specs;
     348                 :   
     349               0 :   return NS_OK;
     350                 : }
     351                 : 
     352                 : // Event listener stuff
     353                 : // FIXME (https://bugzilla.mozilla.org/show_bug.cgi?id=431767)
     354                 : // nsDocument::GetInnerWindow can return an outer window in some
     355                 : // cases.  We don't want to stick an event listener on an outer
     356                 : // window, so bail if it does.  See also similar code in
     357                 : // nsGenericHTMLElement::GetEventListenerManagerForAttr.
     358                 : #define EVENT(name_, id_, type_, struct_) /* nothing; handled by the shim */
     359                 : #define FORWARDED_EVENT(name_, id_, type_, struct_)                   \
     360                 :   NS_IMETHODIMP nsHTMLFrameSetElement::GetOn##name_(JSContext *cx,    \
     361                 :                                                jsval *vp) {           \
     362                 :     /* XXXbz note to self: add tests for this! */                     \
     363                 :     nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow();             \
     364                 :     if (win && win->IsInnerWindow()) {                                \
     365                 :       nsCOMPtr<nsIInlineEventHandlers> ev = do_QueryInterface(win);   \
     366                 :       return ev->GetOn##name_(cx, vp);                                \
     367                 :     }                                                                 \
     368                 :     *vp = JSVAL_NULL;                                                 \
     369                 :     return NS_OK;                                                     \
     370                 :   }                                                                   \
     371                 :   NS_IMETHODIMP nsHTMLFrameSetElement::SetOn##name_(JSContext *cx,    \
     372                 :                                                const jsval &v) {      \
     373                 :     nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow();             \
     374                 :     if (win && win->IsInnerWindow()) {                                \
     375                 :       nsCOMPtr<nsIInlineEventHandlers> ev = do_QueryInterface(win);   \
     376                 :       return ev->SetOn##name_(cx, v);                                 \
     377                 :     }                                                                 \
     378                 :     return NS_OK;                                                     \
     379                 :   }
     380                 : #define WINDOW_EVENT(name_, id_, type_, struct_)                      \
     381                 :   NS_IMETHODIMP nsHTMLFrameSetElement::GetOn##name_(JSContext *cx,    \
     382                 :                                                     jsval *vp) {      \
     383                 :     /* XXXbz note to self: add tests for this! */                     \
     384                 :     nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow();             \
     385                 :     if (win && win->IsInnerWindow()) {                                \
     386                 :       return win->GetOn##name_(cx, vp);                               \
     387                 :     }                                                                 \
     388                 :     *vp = JSVAL_NULL;                                                 \
     389                 :     return NS_OK;                                                     \
     390                 :   }                                                                   \
     391                 :   NS_IMETHODIMP nsHTMLFrameSetElement::SetOn##name_(JSContext *cx,    \
     392                 :                                                     const jsval &v) { \
     393                 :     nsPIDOMWindow* win = OwnerDoc()->GetInnerWindow();             \
     394                 :     if (win && win->IsInnerWindow()) {                                \
     395                 :       return win->SetOn##name_(cx, v);                                \
     396                 :     }                                                                 \
     397                 :     return NS_OK;                                                     \
     398                 :   }
     399                 : #include "nsEventNameList.h"
     400                 : #undef WINDOW_EVENT
     401                 : #undef FORWARDED_EVENT
     402                 : #undef EVENT

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