LCOV - code coverage report
Current view: directory - widget/xpwidgets - nsNativeTheme.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 256 0 0.0 %
Date: 2012-06-02 Functions: 30 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.org 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) 2002
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *  Brian Ryner <bryner@brianryner.com>  (Original Author)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #include "nsNativeTheme.h"
      40                 : #include "nsIWidget.h"
      41                 : #include "nsIDocument.h"
      42                 : #include "nsIContent.h"
      43                 : #include "nsIFrame.h"
      44                 : #include "nsIPresShell.h"
      45                 : #include "nsPresContext.h"
      46                 : #include "nsEventStateManager.h"
      47                 : #include "nsString.h"
      48                 : #include "nsINameSpaceManager.h"
      49                 : #include "nsIDOMHTMLInputElement.h"
      50                 : #include "nsIDOMXULMenuListElement.h"
      51                 : #include "nsThemeConstants.h"
      52                 : #include "nsIComponentManager.h"
      53                 : #include "nsPIDOMWindow.h"
      54                 : #include "nsProgressFrame.h"
      55                 : #include "nsMenuFrame.h"
      56                 : #include "mozilla/dom/Element.h"
      57                 : 
      58               0 : nsNativeTheme::nsNativeTheme()
      59               0 : : mAnimatedContentTimeout(PR_UINT32_MAX)
      60                 : {
      61               0 : }
      62                 : 
      63               0 : NS_IMPL_ISUPPORTS1(nsNativeTheme, nsITimerCallback)
      64                 : 
      65                 : nsIPresShell *
      66               0 : nsNativeTheme::GetPresShell(nsIFrame* aFrame)
      67                 : {
      68               0 :   if (!aFrame)
      69               0 :     return nsnull;
      70                 : 
      71                 :   // this is a workaround for the egcs 1.1.2 not inliningg
      72                 :   // aFrame->GetPresContext(), which causes an undefined symbol
      73               0 :   nsPresContext *context = aFrame->GetStyleContext()->GetRuleNode()->GetPresContext();
      74               0 :   return context ? context->GetPresShell() : nsnull;
      75                 : }
      76                 : 
      77                 : nsEventStates
      78               0 : nsNativeTheme::GetContentState(nsIFrame* aFrame, PRUint8 aWidgetType)
      79                 : {
      80               0 :   if (!aFrame)
      81               0 :     return nsEventStates();
      82                 : 
      83                 :   bool isXULCheckboxRadio = 
      84                 :     (aWidgetType == NS_THEME_CHECKBOX ||
      85                 :      aWidgetType == NS_THEME_RADIO) &&
      86               0 :     aFrame->GetContent()->IsXUL();
      87               0 :   if (isXULCheckboxRadio)
      88               0 :     aFrame = aFrame->GetParent();
      89                 : 
      90               0 :   if (!aFrame->GetContent())
      91               0 :     return nsEventStates();
      92                 : 
      93               0 :   nsIPresShell *shell = GetPresShell(aFrame);
      94               0 :   if (!shell)
      95               0 :     return nsEventStates();
      96                 : 
      97               0 :   nsIContent* frameContent = aFrame->GetContent();
      98               0 :   nsEventStates flags;
      99               0 :   if (frameContent->IsElement()) {
     100               0 :     flags = frameContent->AsElement()->State();
     101                 :   }
     102                 :   
     103               0 :   if (isXULCheckboxRadio && aWidgetType == NS_THEME_RADIO) {
     104               0 :     if (IsFocused(aFrame))
     105               0 :       flags |= NS_EVENT_STATE_FOCUS;
     106                 :   }
     107                 : 
     108                 :   // On Windows and Mac, only draw focus rings if they should be shown. This
     109                 :   // means that focus rings are only shown once the keyboard has been used to
     110                 :   // focus something in the window.
     111                 : #if defined(XP_MACOSX)
     112                 :   // Mac always draws focus rings for textboxes and lists.
     113                 :   if (aWidgetType == NS_THEME_TEXTFIELD ||
     114                 :       aWidgetType == NS_THEME_TEXTFIELD_MULTILINE ||
     115                 :       aWidgetType == NS_THEME_SEARCHFIELD ||
     116                 :       aWidgetType == NS_THEME_LISTBOX) {
     117                 :     return flags;
     118                 :   }
     119                 : #endif
     120                 : #if defined(XP_WIN)
     121                 :   // On Windows, focused buttons are always drawn as such by the native theme.
     122                 :   if (aWidgetType == NS_THEME_BUTTON)
     123                 :     return flags;
     124                 : #endif    
     125                 : #if defined(XP_MACOSX) || defined(XP_WIN)
     126                 :   nsIDocument* doc = aFrame->GetContent()->OwnerDoc();
     127                 :   nsPIDOMWindow* window = doc->GetWindow();
     128                 :   if (window && !window->ShouldShowFocusRing())
     129                 :     flags &= ~NS_EVENT_STATE_FOCUS;
     130                 : #endif
     131                 :   
     132               0 :   return flags;
     133                 : }
     134                 : 
     135                 : bool
     136               0 : nsNativeTheme::CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom)
     137                 : {
     138               0 :   if (!aFrame)
     139               0 :     return false;
     140                 : 
     141               0 :   nsIContent* content = aFrame->GetContent();
     142               0 :   if (!content)
     143               0 :     return false;
     144                 : 
     145               0 :   if (content->IsHTML())
     146               0 :     return content->HasAttr(kNameSpaceID_None, aAtom);
     147                 : 
     148                 :   // For XML/XUL elements, an attribute must be equal to the literal
     149                 :   // string "true" to be counted as true.  An empty string should _not_
     150                 :   // be counted as true.
     151                 :   return content->AttrValueIs(kNameSpaceID_None, aAtom,
     152               0 :                               NS_LITERAL_STRING("true"), eCaseMatters);
     153                 : }
     154                 : 
     155                 : PRInt32
     156               0 : nsNativeTheme::CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom, PRInt32 defaultValue)
     157                 : {
     158               0 :   if (!aFrame)
     159               0 :     return defaultValue;
     160                 : 
     161               0 :   nsAutoString attr;
     162               0 :   aFrame->GetContent()->GetAttr(kNameSpaceID_None, aAtom, attr);
     163               0 :   PRInt32 err, value = attr.ToInteger(&err);
     164               0 :   if (attr.IsEmpty() || NS_FAILED(err))
     165               0 :     return defaultValue;
     166                 : 
     167               0 :   return value;
     168                 : }
     169                 : 
     170                 : bool
     171               0 : nsNativeTheme::GetCheckedOrSelected(nsIFrame* aFrame, bool aCheckSelected)
     172                 : {
     173               0 :   if (!aFrame)
     174               0 :     return false;
     175                 : 
     176               0 :   nsIContent* content = aFrame->GetContent();
     177                 : 
     178               0 :   if (content->IsXUL()) {
     179                 :     // For a XUL checkbox or radio button, the state of the parent determines
     180                 :     // the checked state
     181               0 :     aFrame = aFrame->GetParent();
     182                 :   } else {
     183                 :     // Check for an HTML input element
     184               0 :     nsCOMPtr<nsIDOMHTMLInputElement> inputElt = do_QueryInterface(content);
     185               0 :     if (inputElt) {
     186                 :       bool checked;
     187               0 :       inputElt->GetChecked(&checked);
     188               0 :       return checked;
     189                 :     }
     190                 :   }
     191                 : 
     192                 :   return CheckBooleanAttr(aFrame, aCheckSelected ? nsGkAtoms::selected
     193               0 :                                                  : nsGkAtoms::checked);
     194                 : }
     195                 : 
     196                 : bool
     197               0 : nsNativeTheme::IsButtonTypeMenu(nsIFrame* aFrame)
     198                 : {
     199               0 :   if (!aFrame)
     200               0 :     return false;
     201                 : 
     202               0 :   nsIContent* content = aFrame->GetContent();
     203                 :   return content->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
     204               0 :                               NS_LITERAL_STRING("menu"), eCaseMatters);
     205                 : }
     206                 : 
     207                 : bool
     208               0 : nsNativeTheme::IsPressedButton(nsIFrame* aFrame)
     209                 : {
     210               0 :   nsEventStates eventState = GetContentState(aFrame, NS_THEME_TOOLBAR_BUTTON);
     211               0 :   if (IsDisabled(aFrame, eventState))
     212               0 :     return false;
     213                 : 
     214               0 :   return IsOpenButton(aFrame) ||
     215               0 :          eventState.HasAllStates(NS_EVENT_STATE_ACTIVE | NS_EVENT_STATE_HOVER);
     216                 : }
     217                 : 
     218                 : 
     219                 : bool
     220               0 : nsNativeTheme::GetIndeterminate(nsIFrame* aFrame)
     221                 : {
     222               0 :   if (!aFrame)
     223               0 :     return false;
     224                 : 
     225               0 :   nsIContent* content = aFrame->GetContent();
     226                 : 
     227               0 :   if (content->IsXUL()) {
     228                 :     // For a XUL checkbox or radio button, the state of the parent determines
     229                 :     // the state
     230               0 :     return CheckBooleanAttr(aFrame->GetParent(), nsGkAtoms::indeterminate);
     231                 :   }
     232                 : 
     233                 :   // Check for an HTML input element
     234               0 :   nsCOMPtr<nsIDOMHTMLInputElement> inputElt = do_QueryInterface(content);
     235               0 :   if (inputElt) {
     236                 :     bool indeterminate;
     237               0 :     inputElt->GetIndeterminate(&indeterminate);
     238               0 :     return indeterminate;
     239                 :   }
     240                 : 
     241               0 :   return false;
     242                 : }
     243                 : 
     244                 : bool
     245               0 : nsNativeTheme::IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
     246                 :                               PRUint8 aWidgetType)
     247                 : {
     248                 :   // Check for specific widgets to see if HTML has overridden the style.
     249               0 :   if (!aFrame)
     250               0 :     return false;
     251                 : 
     252                 :   // Resizers have some special handling, dependent on whether in a scrollable
     253                 :   // container or not. If so, use the scrollable container's to determine
     254                 :   // whether the style is overriden instead of the resizer. This allows a
     255                 :   // non-native transparent resizer to be used instead. Otherwise, we just
     256                 :   // fall through and return false.
     257               0 :   if (aWidgetType == NS_THEME_RESIZER) {
     258               0 :     nsIFrame* parentFrame = aFrame->GetParent();
     259               0 :     if (parentFrame && parentFrame->GetType() == nsGkAtoms::scrollFrame) {
     260                 :       // if the parent is a scrollframe, the resizer should be native themed
     261                 :       // only if the scrollable area doesn't override the widget style.
     262               0 :       parentFrame = parentFrame->GetParent();
     263               0 :       if (parentFrame) {
     264                 :         return IsWidgetStyled(aPresContext, parentFrame,
     265               0 :                               parentFrame->GetStyleDisplay()->mAppearance);
     266                 :       }
     267                 :     }
     268                 :   }
     269                 : 
     270                 :   /**
     271                 :    * Progress bar appearance should be the same for the bar and the container
     272                 :    * frame. nsProgressFrame owns the logic and will tell us what we should do.
     273                 :    */
     274               0 :   if (aWidgetType == NS_THEME_PROGRESSBAR_CHUNK ||
     275                 :       aWidgetType == NS_THEME_PROGRESSBAR) {
     276                 :     nsProgressFrame* progressFrame = do_QueryFrame(aWidgetType == NS_THEME_PROGRESSBAR_CHUNK
     277               0 :                                        ? aFrame->GetParent() : aFrame);
     278               0 :     if (progressFrame) {
     279               0 :       return !progressFrame->ShouldUseNativeStyle();
     280                 :     }
     281                 :   }
     282                 : 
     283                 :   return (aWidgetType == NS_THEME_BUTTON ||
     284                 :           aWidgetType == NS_THEME_TEXTFIELD ||
     285                 :           aWidgetType == NS_THEME_TEXTFIELD_MULTILINE ||
     286                 :           aWidgetType == NS_THEME_LISTBOX ||
     287                 :           aWidgetType == NS_THEME_DROPDOWN) &&
     288               0 :          aFrame->GetContent()->IsHTML() &&
     289                 :          aPresContext->HasAuthorSpecifiedRules(aFrame,
     290                 :                                                NS_AUTHOR_SPECIFIED_BORDER |
     291               0 :                                                NS_AUTHOR_SPECIFIED_BACKGROUND);
     292                 : }
     293                 : 
     294                 : bool
     295               0 : nsNativeTheme::IsDisabled(nsIFrame* aFrame, nsEventStates aEventStates)
     296                 : {
     297               0 :   if (!aFrame) {
     298               0 :     return false;
     299                 :   }
     300                 : 
     301               0 :   nsIContent* content = aFrame->GetContent();
     302               0 :   if (!content) {
     303               0 :     return false;
     304                 :   }
     305                 : 
     306               0 :   if (content->IsHTML()) {
     307               0 :     return aEventStates.HasState(NS_EVENT_STATE_DISABLED);
     308                 :   }
     309                 : 
     310                 :   // For XML/XUL elements, an attribute must be equal to the literal
     311                 :   // string "true" to be counted as true.  An empty string should _not_
     312                 :   // be counted as true.
     313                 :   return content->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled,
     314               0 :                               NS_LITERAL_STRING("true"), eCaseMatters);
     315                 : }
     316                 : 
     317                 : bool
     318               0 : nsNativeTheme::IsFrameRTL(nsIFrame* aFrame)
     319                 : {
     320               0 :   return aFrame && aFrame->GetStyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
     321                 : }
     322                 : 
     323                 : // scrollbar button:
     324                 : PRInt32
     325               0 : nsNativeTheme::GetScrollbarButtonType(nsIFrame* aFrame)
     326                 : {
     327               0 :   if (!aFrame)
     328               0 :     return 0;
     329                 : 
     330                 :   static nsIContent::AttrValuesArray strings[] =
     331                 :     {&nsGkAtoms::scrollbarDownBottom, &nsGkAtoms::scrollbarDownTop,
     332                 :      &nsGkAtoms::scrollbarUpBottom, &nsGkAtoms::scrollbarUpTop,
     333                 :      nsnull};
     334                 : 
     335               0 :   switch (aFrame->GetContent()->FindAttrValueIn(kNameSpaceID_None,
     336                 :                                                 nsGkAtoms::sbattr,
     337               0 :                                                 strings, eCaseMatters)) {
     338               0 :     case 0: return eScrollbarButton_Down | eScrollbarButton_Bottom;
     339               0 :     case 1: return eScrollbarButton_Down;
     340               0 :     case 2: return eScrollbarButton_Bottom;
     341               0 :     case 3: return eScrollbarButton_UpTop;
     342                 :   }
     343                 : 
     344               0 :   return 0;
     345                 : }
     346                 : 
     347                 : // treeheadercell:
     348                 : nsNativeTheme::TreeSortDirection
     349               0 : nsNativeTheme::GetTreeSortDirection(nsIFrame* aFrame)
     350                 : {
     351               0 :   if (!aFrame || !aFrame->GetContent())
     352               0 :     return eTreeSortDirection_Natural;
     353                 : 
     354                 :   static nsIContent::AttrValuesArray strings[] =
     355                 :     {&nsGkAtoms::descending, &nsGkAtoms::ascending, nsnull};
     356               0 :   switch (aFrame->GetContent()->FindAttrValueIn(kNameSpaceID_None,
     357                 :                                                 nsGkAtoms::sortDirection,
     358               0 :                                                 strings, eCaseMatters)) {
     359               0 :     case 0: return eTreeSortDirection_Descending;
     360               0 :     case 1: return eTreeSortDirection_Ascending;
     361                 :   }
     362                 : 
     363               0 :   return eTreeSortDirection_Natural;
     364                 : }
     365                 : 
     366                 : bool
     367               0 : nsNativeTheme::IsLastTreeHeaderCell(nsIFrame* aFrame)
     368                 : {
     369               0 :   if (!aFrame)
     370               0 :     return false;
     371                 : 
     372                 :   // A tree column picker is always the last header cell.
     373               0 :   if (aFrame->GetContent()->Tag() == nsGkAtoms::treecolpicker)
     374               0 :     return true;
     375                 : 
     376                 :   // Find the parent tree.
     377               0 :   nsIContent* parent = aFrame->GetContent()->GetParent();
     378               0 :   while (parent && parent->Tag() != nsGkAtoms::tree) {
     379               0 :     parent = parent->GetParent();
     380                 :   }
     381                 : 
     382                 :   // If the column picker is visible, this can't be the last column.
     383               0 :   if (parent && !parent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::hidecolumnpicker,
     384               0 :                                      NS_LITERAL_STRING("true"), eCaseMatters))
     385               0 :     return false;
     386                 : 
     387               0 :   while ((aFrame = aFrame->GetNextSibling())) {
     388               0 :     if (aFrame->GetRect().width > 0)
     389               0 :       return false;
     390                 :   }
     391               0 :   return true;
     392                 : }
     393                 : 
     394                 : // tab:
     395                 : bool
     396               0 : nsNativeTheme::IsBottomTab(nsIFrame* aFrame)
     397                 : {
     398               0 :   if (!aFrame)
     399               0 :     return false;
     400                 : 
     401               0 :   nsAutoString classStr;
     402               0 :   aFrame->GetContent()->GetAttr(kNameSpaceID_None, nsGkAtoms::_class, classStr);
     403               0 :   return !classStr.IsEmpty() && classStr.Find("tab-bottom") != kNotFound;
     404                 : }
     405                 : 
     406                 : bool
     407               0 : nsNativeTheme::IsFirstTab(nsIFrame* aFrame)
     408                 : {
     409               0 :   if (!aFrame)
     410               0 :     return false;
     411                 : 
     412               0 :   nsIFrame* first = aFrame->GetParent()->GetFirstPrincipalChild();
     413               0 :   while (first) {
     414               0 :     if (first->GetRect().width > 0 && first->GetContent()->Tag() == nsGkAtoms::tab)
     415               0 :       return (first == aFrame);
     416               0 :     first = first->GetNextSibling();
     417                 :   }
     418               0 :   return false;
     419                 : }
     420                 : 
     421                 : bool
     422               0 : nsNativeTheme::IsHorizontal(nsIFrame* aFrame)
     423                 : {
     424               0 :   if (!aFrame)
     425               0 :     return false;
     426                 :     
     427               0 :   return !aFrame->GetContent()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::orient,
     428                 :                                             nsGkAtoms::vertical, 
     429               0 :                                             eCaseMatters);
     430                 : }
     431                 : 
     432                 : bool
     433               0 : nsNativeTheme::IsNextToSelectedTab(nsIFrame* aFrame, PRInt32 aOffset)
     434                 : {
     435               0 :   if (!aFrame)
     436               0 :     return false;
     437                 : 
     438               0 :   if (aOffset == 0)
     439               0 :     return IsSelectedTab(aFrame);
     440                 : 
     441               0 :   PRInt32 thisTabIndex = -1, selectedTabIndex = -1;
     442                 : 
     443               0 :   nsIFrame* currentTab = aFrame->GetParent()->GetFirstPrincipalChild();
     444               0 :   for (PRInt32 i = 0; currentTab; currentTab = currentTab->GetNextSibling()) {
     445               0 :     if (currentTab->GetRect().width == 0)
     446               0 :       continue;
     447               0 :     if (aFrame == currentTab)
     448               0 :       thisTabIndex = i;
     449               0 :     if (IsSelectedTab(currentTab))
     450               0 :       selectedTabIndex = i;
     451               0 :     ++i;
     452                 :   }
     453                 : 
     454               0 :   if (thisTabIndex == -1 || selectedTabIndex == -1)
     455               0 :     return false;
     456                 : 
     457               0 :   return (thisTabIndex - selectedTabIndex == aOffset);
     458                 : }
     459                 : 
     460                 : // progressbar:
     461                 : bool
     462               0 : nsNativeTheme::IsIndeterminateProgress(nsIFrame* aFrame,
     463                 :                                        nsEventStates aEventStates)
     464                 : {
     465               0 :   if (!aFrame || !aFrame->GetContent())
     466               0 :     return false;
     467                 : 
     468               0 :   if (aFrame->GetContent()->IsHTML(nsGkAtoms::progress)) {
     469               0 :     return aEventStates.HasState(NS_EVENT_STATE_INDETERMINATE);
     470                 :   }
     471                 : 
     472               0 :   return aFrame->GetContent()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::mode,
     473               0 :                                            NS_LITERAL_STRING("undetermined"),
     474               0 :                                            eCaseMatters);
     475                 : }
     476                 : 
     477                 : bool
     478               0 : nsNativeTheme::IsVerticalProgress(nsIFrame* aFrame)
     479                 : {
     480                 :   return aFrame &&
     481               0 :          aFrame->GetStyleDisplay()->mOrient == NS_STYLE_ORIENT_VERTICAL;
     482                 : }
     483                 : 
     484                 : // menupopup:
     485                 : bool
     486               0 : nsNativeTheme::IsSubmenu(nsIFrame* aFrame, bool* aLeftOfParent)
     487                 : {
     488               0 :   if (!aFrame)
     489               0 :     return false;
     490                 : 
     491               0 :   nsIContent* parentContent = aFrame->GetContent()->GetParent();
     492               0 :   if (!parentContent || parentContent->Tag() != nsGkAtoms::menu)
     493               0 :     return false;
     494                 : 
     495               0 :   nsIFrame* parent = aFrame;
     496               0 :   while ((parent = parent->GetParent())) {
     497               0 :     if (parent->GetContent() == parentContent) {
     498               0 :       if (aLeftOfParent) {
     499               0 :         nsIntRect selfBounds, parentBounds;
     500               0 :         aFrame->GetNearestWidget()->GetScreenBounds(selfBounds);
     501               0 :         parent->GetNearestWidget()->GetScreenBounds(parentBounds);
     502               0 :         *aLeftOfParent = selfBounds.x < parentBounds.x;
     503                 :       }
     504               0 :       return true;
     505                 :     }
     506                 :   }
     507                 : 
     508               0 :   return false;
     509                 : }
     510                 : 
     511                 : bool
     512               0 : nsNativeTheme::IsRegularMenuItem(nsIFrame *aFrame)
     513                 : {
     514               0 :   nsMenuFrame *menuFrame = do_QueryFrame(aFrame);
     515               0 :   return !(menuFrame && (menuFrame->IsOnMenuBar() ||
     516               0 :                          menuFrame->GetParentMenuListType() != eNotMenuList));
     517                 : }
     518                 : 
     519                 : bool
     520               0 : nsNativeTheme::IsMenuListEditable(nsIFrame *aFrame)
     521                 : {
     522               0 :   bool isEditable = false;
     523               0 :   nsCOMPtr<nsIDOMXULMenuListElement> menulist = do_QueryInterface(aFrame->GetContent());
     524               0 :   if (menulist)
     525               0 :     menulist->GetEditable(&isEditable);
     526               0 :   return isEditable;
     527                 : }
     528                 : 
     529                 : bool
     530               0 : nsNativeTheme::QueueAnimatedContentForRefresh(nsIContent* aContent,
     531                 :                                               PRUint32 aMinimumFrameRate)
     532                 : {
     533               0 :   NS_ASSERTION(aContent, "Null pointer!");
     534               0 :   NS_ASSERTION(aMinimumFrameRate, "aMinimumFrameRate must be non-zero!");
     535               0 :   NS_ASSERTION(aMinimumFrameRate <= 1000,
     536                 :                "aMinimumFrameRate must be less than 1000!");
     537                 : 
     538               0 :   PRUint32 timeout = 1000 / aMinimumFrameRate;
     539               0 :   timeout = NS_MIN(mAnimatedContentTimeout, timeout);
     540                 : 
     541               0 :   if (!mAnimatedContentTimer) {
     542               0 :     mAnimatedContentTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
     543               0 :     NS_ENSURE_TRUE(mAnimatedContentTimer, false);
     544                 :   }
     545                 : 
     546               0 :   if (mAnimatedContentList.IsEmpty() || timeout != mAnimatedContentTimeout) {
     547                 :     nsresult rv;
     548               0 :     if (!mAnimatedContentList.IsEmpty()) {
     549               0 :       rv = mAnimatedContentTimer->Cancel();
     550               0 :       NS_ENSURE_SUCCESS(rv, false);
     551                 :     }
     552                 : 
     553               0 :     rv = mAnimatedContentTimer->InitWithCallback(this, timeout,
     554               0 :                                                  nsITimer::TYPE_ONE_SHOT);
     555               0 :     NS_ENSURE_SUCCESS(rv, false);
     556                 : 
     557               0 :     mAnimatedContentTimeout = timeout;
     558                 :   }
     559                 : 
     560               0 :   if (!mAnimatedContentList.AppendElement(aContent)) {
     561               0 :     NS_WARNING("Out of memory!");
     562               0 :     return false;
     563                 :   }
     564                 : 
     565               0 :   return true;
     566                 : }
     567                 : 
     568                 : NS_IMETHODIMP
     569               0 : nsNativeTheme::Notify(nsITimer* aTimer)
     570                 : {
     571               0 :   NS_ASSERTION(aTimer == mAnimatedContentTimer, "Wrong timer!");
     572                 : 
     573                 :   // XXX Assumes that calling nsIFrame::Invalidate won't reenter
     574                 :   //     QueueAnimatedContentForRefresh.
     575                 : 
     576               0 :   PRUint32 count = mAnimatedContentList.Length();
     577               0 :   for (PRUint32 index = 0; index < count; index++) {
     578               0 :     nsIFrame* frame = mAnimatedContentList[index]->GetPrimaryFrame();
     579               0 :     if (frame) {
     580               0 :       frame->InvalidateOverflowRect();
     581                 :     }
     582                 :   }
     583                 : 
     584               0 :   mAnimatedContentList.Clear();
     585               0 :   mAnimatedContentTimeout = PR_UINT32_MAX;
     586               0 :   return NS_OK;
     587                 : }
     588                 : 
     589                 : nsIFrame*
     590               0 : nsNativeTheme::GetAdjacentSiblingFrameWithSameAppearance(nsIFrame* aFrame,
     591                 :                                                          bool aNextSibling)
     592                 : {
     593               0 :   if (!aFrame)
     594               0 :     return nsnull;
     595                 : 
     596                 :   // Find the next visible sibling.
     597               0 :   nsIFrame* sibling = aFrame;
     598               0 :   do {
     599               0 :     sibling = aNextSibling ? sibling->GetNextSibling() : sibling->GetPrevSibling();
     600               0 :   } while (sibling && sibling->GetRect().width == 0);
     601                 : 
     602                 :   // Check same appearance and adjacency.
     603               0 :   if (!sibling ||
     604               0 :       sibling->GetStyleDisplay()->mAppearance != aFrame->GetStyleDisplay()->mAppearance ||
     605               0 :       (sibling->GetRect().XMost() != aFrame->GetRect().x &&
     606               0 :        aFrame->GetRect().XMost() != sibling->GetRect().x))
     607               0 :     return nsnull;
     608               0 :   return sibling;
     609                 : }

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