LCOV - code coverage report
Current view: directory - content/events/src - nsDOMMouseEvent.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 135 28 20.7 %
Date: 2012-06-02 Functions: 23 7 30.4 %

       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                 :  *   Steve Clark (buster@netscape.com)
      24                 :  *   Ilya Konstantinov (mozilla-code@future.shiny.co.il)
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #include "nsDOMMouseEvent.h"
      41                 : #include "nsGUIEvent.h"
      42                 : #include "nsIContent.h"
      43                 : #include "nsContentUtils.h"
      44                 : #include "DictionaryHelpers.h"
      45                 : 
      46               2 : nsDOMMouseEvent::nsDOMMouseEvent(nsPresContext* aPresContext,
      47                 :                                  nsInputEvent* aEvent)
      48                 :   : nsDOMUIEvent(aPresContext, aEvent ? aEvent :
      49                 :                  new nsMouseEvent(false, 0, nsnull,
      50               4 :                                   nsMouseEvent::eReal))
      51                 : {
      52                 :   // There's no way to make this class' ctor allocate an nsMouseScrollEvent.
      53                 :   // It's not that important, though, since a scroll event is not a real
      54                 :   // DOM event.
      55                 :   
      56               2 :   if (aEvent) {
      57               0 :     mEventIsInternal = false;
      58                 :   }
      59                 :   else {
      60               2 :     mEventIsInternal = true;
      61               2 :     mEvent->time = PR_Now();
      62               2 :     mEvent->refPoint.x = mEvent->refPoint.y = 0;
      63               2 :     static_cast<nsMouseEvent*>(mEvent)->inputSource = nsIDOMMouseEvent::MOZ_SOURCE_UNKNOWN;
      64                 :   }
      65                 : 
      66               2 :   switch (mEvent->eventStructType)
      67                 :   {
      68                 :     case NS_MOUSE_EVENT:
      69               2 :       NS_ASSERTION(static_cast<nsMouseEvent*>(mEvent)->reason
      70                 :                    != nsMouseEvent::eSynthesized,
      71                 :                    "Don't dispatch DOM events from synthesized mouse events");
      72               2 :       mDetail = static_cast<nsMouseEvent*>(mEvent)->clickCount;
      73               2 :       break;
      74                 :     default:
      75               0 :       break;
      76                 :   }
      77               2 : }
      78                 : 
      79               6 : nsDOMMouseEvent::~nsDOMMouseEvent()
      80                 : {
      81               2 :   if (mEventIsInternal && mEvent) {
      82               2 :     switch (mEvent->eventStructType)
      83                 :     {
      84                 :       case NS_MOUSE_EVENT:
      85               2 :         delete static_cast<nsMouseEvent*>(mEvent);
      86               2 :         break;
      87                 :       default:
      88               0 :         delete mEvent;
      89               0 :         break;
      90                 :     }
      91               2 :     mEvent = nsnull;
      92                 :   }
      93               8 : }
      94                 : 
      95              12 : NS_IMPL_ADDREF_INHERITED(nsDOMMouseEvent, nsDOMUIEvent)
      96              12 : NS_IMPL_RELEASE_INHERITED(nsDOMMouseEvent, nsDOMUIEvent)
      97                 : 
      98                 : DOMCI_DATA(MouseEvent, nsDOMMouseEvent)
      99                 : 
     100              34 : NS_INTERFACE_MAP_BEGIN(nsDOMMouseEvent)
     101              34 :   NS_INTERFACE_MAP_ENTRY(nsIDOMMouseEvent)
     102              34 :   NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MouseEvent)
     103              30 : NS_INTERFACE_MAP_END_INHERITING(nsDOMUIEvent)
     104                 : 
     105                 : NS_IMETHODIMP
     106               0 : nsDOMMouseEvent::InitMouseEvent(const nsAString & aType, bool aCanBubble, bool aCancelable,
     107                 :                                 nsIDOMWindow* aView, PRInt32 aDetail, PRInt32 aScreenX, 
     108                 :                                 PRInt32 aScreenY, PRInt32 aClientX, PRInt32 aClientY, 
     109                 :                                 bool aCtrlKey, bool aAltKey, bool aShiftKey, 
     110                 :                                 bool aMetaKey, PRUint16 aButton, nsIDOMEventTarget *aRelatedTarget)
     111                 : {
     112               0 :   nsresult rv = nsDOMUIEvent::InitUIEvent(aType, aCanBubble, aCancelable, aView, aDetail);
     113               0 :   NS_ENSURE_SUCCESS(rv, rv);
     114                 : 
     115               0 :   switch(mEvent->eventStructType)
     116                 :   {
     117                 :     case NS_MOUSE_EVENT:
     118                 :     case NS_MOUSE_SCROLL_EVENT:
     119                 :     case NS_DRAG_EVENT:
     120                 :     case NS_SIMPLE_GESTURE_EVENT:
     121                 :     case NS_MOZTOUCH_EVENT:
     122                 :     {
     123               0 :        static_cast<nsMouseEvent_base*>(mEvent)->relatedTarget = aRelatedTarget;
     124               0 :        static_cast<nsMouseEvent_base*>(mEvent)->button = aButton;
     125               0 :        nsInputEvent* inputEvent = static_cast<nsInputEvent*>(mEvent);
     126               0 :        inputEvent->isControl = aCtrlKey;
     127               0 :        inputEvent->isAlt = aAltKey;
     128               0 :        inputEvent->isShift = aShiftKey;
     129               0 :        inputEvent->isMeta = aMetaKey;
     130               0 :        mClientPoint.x = aClientX;
     131               0 :        mClientPoint.y = aClientY;
     132               0 :        inputEvent->refPoint.x = aScreenX;
     133               0 :        inputEvent->refPoint.y = aScreenY;
     134                 : 
     135               0 :        if (mEvent->eventStructType == NS_MOUSE_EVENT) {
     136               0 :          nsMouseEvent* mouseEvent = static_cast<nsMouseEvent*>(mEvent);
     137               0 :          mouseEvent->clickCount = aDetail;
     138                 :        }
     139               0 :        break;
     140                 :     }
     141                 :     default:
     142               0 :        break;
     143                 :   }
     144                 : 
     145               0 :   return NS_OK;
     146                 : }   
     147                 : 
     148                 : nsresult
     149               0 : nsDOMMouseEvent::InitFromCtor(const nsAString& aType,
     150                 :                               JSContext* aCx, jsval* aVal)
     151                 : {
     152               0 :   mozilla::dom::MouseEventInit d;
     153               0 :   nsresult rv = d.Init(aCx, aVal);
     154               0 :   NS_ENSURE_SUCCESS(rv, rv);
     155                 :   return InitMouseEvent(aType, d.bubbles, d.cancelable,
     156                 :                         d.view, d.detail, d.screenX, d.screenY,
     157                 :                         d.clientX, d.clientY, 
     158                 :                         d.ctrlKey, d.altKey, d.shiftKey, d.metaKey,
     159               0 :                         d.button, d.relatedTarget);
     160                 : }
     161                 : 
     162                 : NS_IMETHODIMP
     163               0 : nsDOMMouseEvent::InitNSMouseEvent(const nsAString & aType, bool aCanBubble, bool aCancelable,
     164                 :                                   nsIDOMWindow *aView, PRInt32 aDetail, PRInt32 aScreenX,
     165                 :                                   PRInt32 aScreenY, PRInt32 aClientX, PRInt32 aClientY,
     166                 :                                   bool aCtrlKey, bool aAltKey, bool aShiftKey,
     167                 :                                   bool aMetaKey, PRUint16 aButton, nsIDOMEventTarget *aRelatedTarget,
     168                 :                                   float aPressure, PRUint16 aInputSource)
     169                 : {
     170                 :   nsresult rv = nsDOMMouseEvent::InitMouseEvent(aType, aCanBubble, aCancelable,
     171                 :                                                 aView, aDetail, aScreenX, aScreenY,
     172                 :                                                 aClientX, aClientY, aCtrlKey, aAltKey, aShiftKey,
     173               0 :                                                 aMetaKey, aButton, aRelatedTarget);
     174               0 :   NS_ENSURE_SUCCESS(rv, rv);
     175                 : 
     176               0 :   static_cast<nsMouseEvent_base*>(mEvent)->pressure = aPressure;
     177               0 :   static_cast<nsMouseEvent_base*>(mEvent)->inputSource = aInputSource;
     178               0 :   return NS_OK;
     179                 : }
     180                 : 
     181                 : NS_IMETHODIMP
     182               0 : nsDOMMouseEvent::GetButton(PRUint16* aButton)
     183                 : {
     184               0 :   NS_ENSURE_ARG_POINTER(aButton);
     185               0 :   switch(mEvent->eventStructType)
     186                 :   {
     187                 :     case NS_MOUSE_EVENT:
     188                 :     case NS_MOUSE_SCROLL_EVENT:
     189                 :     case NS_DRAG_EVENT:
     190                 :     case NS_SIMPLE_GESTURE_EVENT:
     191                 :     case NS_MOZTOUCH_EVENT:
     192               0 :       *aButton = static_cast<nsMouseEvent_base*>(mEvent)->button;
     193               0 :       break;
     194                 :     default:
     195               0 :       NS_WARNING("Tried to get mouse button for non-mouse event!");
     196               0 :       *aButton = nsMouseEvent::eLeftButton;
     197               0 :       break;
     198                 :   }
     199               0 :   return NS_OK;
     200                 : }
     201                 : 
     202                 : NS_IMETHODIMP
     203               0 : nsDOMMouseEvent::GetRelatedTarget(nsIDOMEventTarget** aRelatedTarget)
     204                 : {
     205               0 :   NS_ENSURE_ARG_POINTER(aRelatedTarget);
     206               0 :   *aRelatedTarget = nsnull;
     207               0 :   nsISupports* relatedTarget = nsnull;
     208               0 :   switch(mEvent->eventStructType)
     209                 :   {
     210                 :     case NS_MOUSE_EVENT:
     211                 :     case NS_MOUSE_SCROLL_EVENT:
     212                 :     case NS_DRAG_EVENT:
     213                 :     case NS_SIMPLE_GESTURE_EVENT:
     214                 :     case NS_MOZTOUCH_EVENT:
     215               0 :       relatedTarget = static_cast<nsMouseEvent_base*>(mEvent)->relatedTarget;
     216               0 :       break;
     217                 :     default:
     218               0 :       break;
     219                 :   }
     220                 : 
     221               0 :   if (relatedTarget) {
     222               0 :     nsCOMPtr<nsIContent> content = do_QueryInterface(relatedTarget);
     223               0 :     if (content && content->IsInNativeAnonymousSubtree() &&
     224               0 :         !nsContentUtils::CanAccessNativeAnon()) {
     225               0 :       relatedTarget = content->FindFirstNonNativeAnonymous();
     226               0 :       if (!relatedTarget) {
     227               0 :         return NS_OK;
     228                 :       }
     229                 :     }
     230                 : 
     231               0 :     CallQueryInterface(relatedTarget, aRelatedTarget);
     232                 :   }
     233               0 :   return NS_OK;
     234                 : }
     235                 : 
     236               0 : NS_METHOD nsDOMMouseEvent::GetScreenX(PRInt32* aScreenX)
     237                 : {
     238               0 :   NS_ENSURE_ARG_POINTER(aScreenX);
     239                 : #ifdef MOZ_TOUCH
     240                 :   *aScreenX = nsDOMEvent::GetScreenCoords(mPresContext,
     241                 :                                           mEvent,
     242                 :                                           mEvent->refPoint).x;
     243                 : #else
     244               0 :   *aScreenX = GetScreenPoint().x;
     245                 : #endif
     246               0 :   return NS_OK;
     247                 : }
     248                 : 
     249                 : NS_IMETHODIMP
     250               0 : nsDOMMouseEvent::GetScreenY(PRInt32* aScreenY)
     251                 : {
     252               0 :   NS_ENSURE_ARG_POINTER(aScreenY);
     253                 : #ifdef MOZ_TOUCH
     254                 :   *aScreenY = nsDOMEvent::GetScreenCoords(mPresContext,
     255                 :                                           mEvent,
     256                 :                                           mEvent->refPoint).y;
     257                 : #else
     258               0 :   *aScreenY = GetScreenPoint().y;
     259                 : #endif
     260               0 :   return NS_OK;
     261                 : }
     262                 : 
     263                 : 
     264               0 : NS_METHOD nsDOMMouseEvent::GetClientX(PRInt32* aClientX)
     265                 : {
     266               0 :   NS_ENSURE_ARG_POINTER(aClientX);
     267                 : #ifdef MOZ_TOUCH
     268                 :   *aClientX = nsDOMEvent::GetClientCoords(mPresContext,
     269                 :                                           mEvent,
     270                 :                                           mEvent->refPoint,
     271                 :                                           mClientPoint).x;
     272                 : #else
     273               0 :   *aClientX = GetClientPoint().x;
     274                 : #endif
     275               0 :   return NS_OK;
     276                 : }
     277                 : 
     278                 : NS_IMETHODIMP
     279               0 : nsDOMMouseEvent::GetClientY(PRInt32* aClientY)
     280                 : {
     281               0 :   NS_ENSURE_ARG_POINTER(aClientY);
     282                 : #ifdef MOZ_TOUCH
     283                 :   *aClientY = nsDOMEvent::GetClientCoords(mPresContext,
     284                 :                                           mEvent,
     285                 :                                           mEvent->refPoint,
     286                 :                                           mClientPoint).y;
     287                 : #else
     288               0 :   *aClientY = GetClientPoint().y;
     289                 : #endif
     290               0 :   return NS_OK;
     291                 : }
     292                 : 
     293                 : NS_IMETHODIMP
     294               0 : nsDOMMouseEvent::GetAltKey(bool* aIsDown)
     295                 : {
     296               0 :   NS_ENSURE_ARG_POINTER(aIsDown);
     297               0 :   *aIsDown = ((nsInputEvent*)mEvent)->isAlt;
     298               0 :   return NS_OK;
     299                 : }
     300                 : 
     301                 : NS_IMETHODIMP
     302               0 : nsDOMMouseEvent::GetCtrlKey(bool* aIsDown)
     303                 : {
     304               0 :   NS_ENSURE_ARG_POINTER(aIsDown);
     305               0 :   *aIsDown = ((nsInputEvent*)mEvent)->isControl;
     306               0 :   return NS_OK;
     307                 : }
     308                 : 
     309                 : NS_IMETHODIMP
     310               0 : nsDOMMouseEvent::GetShiftKey(bool* aIsDown)
     311                 : {
     312               0 :   NS_ENSURE_ARG_POINTER(aIsDown);
     313               0 :   *aIsDown = ((nsInputEvent*)mEvent)->isShift;
     314               0 :   return NS_OK;
     315                 : }
     316                 : 
     317                 : NS_IMETHODIMP
     318               0 : nsDOMMouseEvent::GetMetaKey(bool* aIsDown)
     319                 : {
     320               0 :   NS_ENSURE_ARG_POINTER(aIsDown);
     321               0 :   *aIsDown = ((nsInputEvent*)mEvent)->isMeta;
     322               0 :   return NS_OK;
     323                 : }
     324                 : 
     325                 : /* virtual */
     326                 : nsresult
     327               0 : nsDOMMouseEvent::Which(PRUint32* aWhich)
     328                 : {
     329               0 :   NS_ENSURE_ARG_POINTER(aWhich);
     330                 :   PRUint16 button;
     331               0 :   (void) GetButton(&button);
     332               0 :   *aWhich = button + 1;
     333               0 :   return NS_OK;
     334                 : }
     335                 : 
     336                 : NS_IMETHODIMP
     337               0 : nsDOMMouseEvent::GetMozPressure(float* aPressure)
     338                 : {
     339               0 :   NS_ENSURE_ARG_POINTER(aPressure);
     340               0 :   *aPressure = static_cast<nsMouseEvent_base*>(mEvent)->pressure;
     341               0 :   return NS_OK;
     342                 : }
     343                 : 
     344                 : NS_IMETHODIMP
     345               0 : nsDOMMouseEvent::GetMozInputSource(PRUint16* aInputSource)
     346                 : {
     347               0 :   NS_ENSURE_ARG_POINTER(aInputSource);
     348               0 :   *aInputSource = static_cast<nsMouseEvent_base*>(mEvent)->inputSource;
     349               0 :   return NS_OK;
     350                 : }
     351                 : 
     352               2 : nsresult NS_NewDOMMouseEvent(nsIDOMEvent** aInstancePtrResult,
     353                 :                              nsPresContext* aPresContext,
     354                 :                              nsInputEvent *aEvent) 
     355                 : {
     356               2 :   nsDOMMouseEvent* it = new nsDOMMouseEvent(aPresContext, aEvent);
     357               2 :   return CallQueryInterface(it, aInstancePtrResult);
     358                 : }

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