LCOV - code coverage report
Current view: directory - layout/forms - nsImageControlFrame.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 71 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.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) 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                 : #include "nsCOMPtr.h"
      38                 : #include "nsImageFrame.h"
      39                 : #include "nsIFormControlFrame.h"
      40                 : #include "nsIFormControl.h"
      41                 : #include "nsHTMLParts.h"
      42                 : #include "nsPresContext.h"
      43                 : #include "nsIPresShell.h"
      44                 : #include "nsStyleContext.h"
      45                 : #include "nsLeafFrame.h"
      46                 : #include "nsCSSRendering.h"
      47                 : #include "nsISupports.h"
      48                 : #include "nsGkAtoms.h"
      49                 : #include "nsStyleConsts.h"
      50                 : #include "nsFormControlFrame.h"
      51                 : #include "nsGUIEvent.h"
      52                 : #include "nsIServiceManager.h"
      53                 : #include "nsContainerFrame.h"
      54                 : #include "nsLayoutUtils.h"
      55                 : #ifdef ACCESSIBILITY
      56                 : #include "nsAccessibilityService.h"
      57                 : #endif
      58                 : 
      59                 : void
      60               0 : IntPointDtorFunc(void *aObject, nsIAtom *aPropertyName,
      61                 :                  void *aPropertyValue, void *aData)
      62                 : {
      63               0 :   nsIntPoint *propertyValue = static_cast<nsIntPoint*>(aPropertyValue);
      64                 :   delete propertyValue;
      65               0 : }
      66                 : 
      67                 : 
      68                 : #define nsImageControlFrameSuper nsImageFrame
      69                 : class nsImageControlFrame : public nsImageControlFrameSuper,
      70                 :                             public nsIFormControlFrame
      71                 : {
      72                 : public:
      73                 :   nsImageControlFrame(nsStyleContext* aContext);
      74                 :   ~nsImageControlFrame();
      75                 : 
      76                 :   virtual void DestroyFrom(nsIFrame* aDestructRoot);
      77                 :   NS_IMETHOD Init(nsIContent*      aContent,
      78                 :                   nsIFrame*        aParent,
      79                 :                   nsIFrame*        aPrevInFlow);
      80                 : 
      81                 :   NS_DECL_QUERYFRAME
      82                 :   NS_DECL_FRAMEARENA_HELPERS
      83                 : 
      84                 :   NS_IMETHOD Reflow(nsPresContext*          aPresContext,
      85                 :                     nsHTMLReflowMetrics&     aDesiredSize,
      86                 :                     const nsHTMLReflowState& aReflowState,
      87                 :                     nsReflowStatus&          aStatus);
      88                 : 
      89                 :   NS_IMETHOD HandleEvent(nsPresContext* aPresContext, 
      90                 :                          nsGUIEvent* aEvent,
      91                 :                          nsEventStatus* aEventStatus);
      92                 : 
      93                 :   virtual nsIAtom* GetType() const;
      94                 : 
      95                 : #ifdef ACCESSIBILITY
      96                 :   virtual already_AddRefed<nsAccessible> CreateAccessible();
      97                 : #endif
      98                 : 
      99                 : #ifdef DEBUG
     100               0 :   NS_IMETHOD GetFrameName(nsAString& aResult) const {
     101               0 :     return MakeFrameName(NS_LITERAL_STRING("ImageControl"), aResult);
     102                 :   }
     103                 : #endif
     104                 : 
     105                 :   NS_IMETHOD GetCursor(const nsPoint&    aPoint,
     106                 :                        nsIFrame::Cursor& aCursor);
     107                 :   // nsIFormContromFrame
     108                 :   virtual void SetFocus(bool aOn, bool aRepaint);
     109                 :   virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue);
     110                 :   virtual nsresult GetFormProperty(nsIAtom* aName, nsAString& aValue) const; 
     111                 : };
     112                 : 
     113                 : 
     114               0 : nsImageControlFrame::nsImageControlFrame(nsStyleContext* aContext):
     115               0 :   nsImageControlFrameSuper(aContext)
     116                 : {
     117               0 : }
     118                 : 
     119               0 : nsImageControlFrame::~nsImageControlFrame()
     120                 : {
     121               0 : }
     122                 : 
     123                 : void
     124               0 : nsImageControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
     125                 : {
     126               0 :   if (!GetPrevInFlow()) {
     127               0 :     nsFormControlFrame::RegUnRegAccessKey(this, false);
     128                 :   }
     129               0 :   nsImageControlFrameSuper::DestroyFrom(aDestructRoot);
     130               0 : }
     131                 : 
     132                 : nsIFrame*
     133               0 : NS_NewImageControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
     134                 : {
     135               0 :   return new (aPresShell) nsImageControlFrame(aContext);
     136                 : }
     137                 : 
     138               0 : NS_IMPL_FRAMEARENA_HELPERS(nsImageControlFrame)
     139                 : 
     140                 : NS_IMETHODIMP
     141               0 : nsImageControlFrame::Init(nsIContent*      aContent,
     142                 :                           nsIFrame*        aParent,
     143                 :                           nsIFrame*        aPrevInFlow)
     144                 : {
     145               0 :   nsresult rv = nsImageControlFrameSuper::Init(aContent, aParent, aPrevInFlow);
     146               0 :   NS_ENSURE_SUCCESS(rv, rv);
     147                 : 
     148                 :   // nsIntPoint allocation can fail, in which case we just set the property 
     149                 :   // to null, which is safe
     150               0 :   if (aPrevInFlow) {
     151               0 :     return NS_OK;
     152                 :   }
     153                 :   
     154                 :   return  mContent->SetProperty(nsGkAtoms::imageClickedPoint,
     155               0 :                                  new nsIntPoint(0, 0),
     156               0 :                                  IntPointDtorFunc);
     157                 : }
     158                 : 
     159               0 : NS_QUERYFRAME_HEAD(nsImageControlFrame)
     160               0 :   NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
     161               0 : NS_QUERYFRAME_TAIL_INHERITING(nsImageControlFrameSuper)
     162                 : 
     163                 : #ifdef ACCESSIBILITY
     164                 : already_AddRefed<nsAccessible>
     165               0 : nsImageControlFrame::CreateAccessible()
     166                 : {
     167               0 :   nsAccessibilityService* accService = nsIPresShell::AccService();
     168               0 :   if (accService) {
     169               0 :     if (mContent->Tag() == nsGkAtoms::button || 
     170               0 :         mContent->Tag() == nsGkAtoms::input) {
     171                 :       return accService->CreateHTMLButtonAccessible(mContent, 
     172               0 :                                                     PresContext()->PresShell());
     173                 :     }
     174                 :   }
     175                 : 
     176               0 :   return nsnull;
     177                 : }
     178                 : #endif
     179                 : 
     180                 : nsIAtom*
     181               0 : nsImageControlFrame::GetType() const
     182                 : {
     183               0 :   return nsGkAtoms::imageControlFrame; 
     184                 : }
     185                 : 
     186                 : NS_METHOD
     187               0 : nsImageControlFrame::Reflow(nsPresContext*         aPresContext,
     188                 :                            nsHTMLReflowMetrics&     aDesiredSize,
     189                 :                            const nsHTMLReflowState& aReflowState,
     190                 :                            nsReflowStatus&          aStatus)
     191                 : {
     192               0 :   DO_GLOBAL_REFLOW_COUNT("nsImageControlFrame");
     193               0 :   DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
     194               0 :   if (!GetPrevInFlow() && (mState & NS_FRAME_FIRST_REFLOW)) {
     195               0 :     nsFormControlFrame::RegUnRegAccessKey(this, true);
     196                 :   }
     197               0 :   return nsImageControlFrameSuper::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
     198                 : }
     199                 : 
     200                 : NS_METHOD 
     201               0 : nsImageControlFrame::HandleEvent(nsPresContext* aPresContext, 
     202                 :                                  nsGUIEvent* aEvent,
     203                 :                                  nsEventStatus* aEventStatus)
     204                 : {
     205               0 :   NS_ENSURE_ARG_POINTER(aEventStatus);
     206                 : 
     207                 :   // Don't do anything if the event has already been handled by someone
     208               0 :   if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
     209               0 :     return NS_OK;
     210                 :   }
     211                 : 
     212                 :   // do we have user-input style?
     213               0 :   const nsStyleUserInterface* uiStyle = GetStyleUserInterface();
     214               0 :   if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE || uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
     215               0 :     return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
     216                 : 
     217               0 :   if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::disabled)) { // XXX cache disabled
     218               0 :     return NS_OK;
     219                 :   }
     220                 : 
     221               0 :   *aEventStatus = nsEventStatus_eIgnore;
     222                 : 
     223               0 :   if (aEvent->eventStructType == NS_MOUSE_EVENT &&
     224                 :       aEvent->message == NS_MOUSE_BUTTON_UP &&
     225                 :       static_cast<nsMouseEvent*>(aEvent)->button == nsMouseEvent::eLeftButton) {
     226                 :     // Store click point for nsHTMLInputElement::SubmitNamesValues
     227                 :     // Do this on MouseUp because the specs don't say and that's what IE does
     228                 :     nsIntPoint* lastClickPoint =
     229                 :       static_cast<nsIntPoint*>
     230               0 :                  (mContent->GetProperty(nsGkAtoms::imageClickedPoint));
     231               0 :     if (lastClickPoint) {
     232                 :       // normally lastClickedPoint is not null, as it's allocated in Init()
     233               0 :       nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent, this);
     234               0 :       TranslateEventCoords(pt, *lastClickPoint);
     235                 :     }
     236                 :   }
     237                 :   return nsImageControlFrameSuper::HandleEvent(aPresContext, aEvent,
     238               0 :                                                aEventStatus);
     239                 : }
     240                 : 
     241                 : void 
     242               0 : nsImageControlFrame::SetFocus(bool aOn, bool aRepaint)
     243                 : {
     244               0 : }
     245                 : 
     246                 : NS_IMETHODIMP
     247               0 : nsImageControlFrame::GetCursor(const nsPoint&    aPoint,
     248                 :                                nsIFrame::Cursor& aCursor)
     249                 : {
     250                 :   // Use style defined cursor if one is provided, otherwise when
     251                 :   // the cursor style is "auto" we use the pointer cursor.
     252               0 :   FillCursorInformationFromStyle(GetStyleUserInterface(), aCursor);
     253                 : 
     254               0 :   if (NS_STYLE_CURSOR_AUTO == aCursor.mCursor) {
     255               0 :     aCursor.mCursor = NS_STYLE_CURSOR_POINTER;
     256                 :   }
     257                 : 
     258               0 :   return NS_OK;
     259                 : }
     260                 : 
     261                 : nsresult
     262               0 : nsImageControlFrame::SetFormProperty(nsIAtom* aName,
     263                 :                                      const nsAString& aValue)
     264                 : {
     265               0 :   return NS_OK;
     266                 : }
     267                 : 
     268                 : nsresult
     269               0 : nsImageControlFrame::GetFormProperty(nsIAtom* aName,
     270                 :                                      nsAString& aValue) const
     271                 : {
     272               0 :   aValue.Truncate();
     273               0 :   return NS_OK;
     274                 : }

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