The Tor Browser: accessible/src/atk/AccessibleWrap.h@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set ts=2 et sw=2 tw=80: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef __NS_ACCESSIBLE_WRAP_H__

     8 #define __NS_ACCESSIBLE_WRAP_H__

    10 #include "nsCOMPtr.h"

    11 #include "Accessible.h"

    13 struct _AtkObject;

    14 typedef struct _AtkObject AtkObject;

    16 enum AtkProperty {

    17   PROP_0,           // gobject convention

    18   PROP_NAME,

    19   PROP_DESCRIPTION,

    20   PROP_PARENT,      // ancestry has changed

    21   PROP_ROLE,

    22   PROP_LAYER,

    23   PROP_MDI_ZORDER,

    24   PROP_TABLE_CAPTION,

    25   PROP_TABLE_COLUMN_DESCRIPTION,

    26   PROP_TABLE_COLUMN_HEADER,

    27   PROP_TABLE_ROW_DESCRIPTION,

    28   PROP_TABLE_ROW_HEADER,

    29   PROP_TABLE_SUMMARY,

    30   PROP_LAST         // gobject convention

    31 };

    33 struct AtkPropertyChange {

    34   int32_t type;     // property type as listed above

    35   void *oldvalue;

    36   void *newvalue;

    37 };

    39 namespace mozilla {

    40 namespace a11y {

    42 class MaiHyperlink;

    44 /**

    45  * AccessibleWrap, and its descendents in atk directory provide the

    46  * implementation of AtkObject.

    47  */

    48 class AccessibleWrap : public Accessible

    49 {

    50 public:

    51   AccessibleWrap(nsIContent* aContent, DocAccessible* aDoc);

    52   virtual ~AccessibleWrap();

    53   void ShutdownAtkObject();

    55   virtual void Shutdown();

    57   // return the atk object for this AccessibleWrap

    58   NS_IMETHOD GetNativeInterface(void **aOutAccessible);

    59   virtual nsresult HandleAccEvent(AccEvent* aEvent);

    61   AtkObject * GetAtkObject(void);

    62   static AtkObject * GetAtkObject(nsIAccessible * acc);

    64   bool IsValidObject();

    66   // get/set the MaiHyperlink object for this AccessibleWrap

    67   MaiHyperlink* GetMaiHyperlink(bool aCreate = true);

    68   void SetMaiHyperlink(MaiHyperlink* aMaiHyperlink);

    70   static const char * ReturnString(nsAString &aString) {

    71     static nsCString returnedString;

    72     returnedString = NS_ConvertUTF16toUTF8(aString);

    73     return returnedString.get();

    74   }

    76 protected:

    78   nsresult FireAtkStateChangeEvent(AccEvent* aEvent, AtkObject *aObject);

    79   nsresult FireAtkTextChangedEvent(AccEvent* aEvent, AtkObject *aObject);

    80   nsresult FireAtkShowHideEvent(AccEvent* aEvent, AtkObject *aObject,

    81                                 bool aIsAdded);

    83   AtkObject *mAtkObject;

    85 private:

    87   /*

    88    * do we have text-remove and text-insert signals if not we need to use

    89    * text-changed see AccessibleWrap::FireAtkTextChangedEvent() and

    90    * bug 619002

    91    */

    92   enum EAvailableAtkSignals {

    93     eUnknown,

    94     eHaveNewAtkTextSignals,

    95     eNoNewAtkSignals

    96   };

    98   static EAvailableAtkSignals gAvailableAtkSignals;

   100   uint16_t CreateMaiInterfaces(void);

   101 };

   103 } // namespace a11y

   104 } // namespace mozilla

   106 #endif /* __NS_ACCESSIBLE_WRAP_H__ */

The Tor Browser / file revision

accessible/src/atk/AccessibleWrap.h@97036ab72558

accessible/src/atk/AccessibleWrap.h