The Tor Browser: accessible/src/xul/XULElementAccessibles.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 /* This Source Code Form is subject to the terms of the Mozilla Public

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

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

     6 #ifndef mozilla_a11y_XULElementAccessibles_h__

     7 #define mozilla_a11y_XULElementAccessibles_h__

     9 #include "HyperTextAccessibleWrap.h"

    10 #include "TextLeafAccessibleWrap.h"

    12 namespace mozilla {

    13 namespace a11y {

    15 class XULLabelTextLeafAccessible;

    17 /**

    18  * Used for XUL description and label elements.

    19  */

    20 class XULLabelAccessible : public HyperTextAccessibleWrap

    21 {

    22 public:

    23   XULLabelAccessible(nsIContent* aContent, DocAccessible* aDoc);

    25   // Accessible

    26   virtual void Shutdown();

    27   virtual a11y::role NativeRole();

    28   virtual uint64_t NativeState();

    29   virtual Relation RelationByType(RelationType aType) MOZ_OVERRIDE;

    31   void UpdateLabelValue(const nsString& aValue);

    33 protected:

    34   // Accessible

    35   virtual ENameValueFlag NativeName(nsString& aName) MOZ_OVERRIDE;

    36   virtual void CacheChildren() MOZ_OVERRIDE;

    38 private:

    39   nsRefPtr<XULLabelTextLeafAccessible> mValueTextLeaf;

    40 };

    42 inline XULLabelAccessible*

    43 Accessible::AsXULLabel()

    44 {

    45   return IsXULLabel() ? static_cast<XULLabelAccessible*>(this) : nullptr;

    46 }

    49 /**

    50  * Used to implement text interface on XUL label accessible in case when text

    51  * is provided by @value attribute (no underlying text frame).

    52  */

    53 class XULLabelTextLeafAccessible MOZ_FINAL : public TextLeafAccessibleWrap

    54 {

    55 public:

    56   XULLabelTextLeafAccessible(nsIContent* aContent, DocAccessible* aDoc) :

    57     TextLeafAccessibleWrap(aContent, aDoc)

    58   { mStateFlags |= eSharedNode; }

    60   virtual ~XULLabelTextLeafAccessible() { }

    62   // Accessible

    63   virtual a11y::role NativeRole() MOZ_OVERRIDE;

    64   virtual uint64_t NativeState() MOZ_OVERRIDE;

    65 };

    68 /**

    69  * Used for XUL tooltip element.

    70  */

    71 class XULTooltipAccessible : public LeafAccessible

    72 {

    74 public:

    75   XULTooltipAccessible(nsIContent* aContent, DocAccessible* aDoc);

    77   // Accessible

    78   virtual a11y::role NativeRole();

    79   virtual uint64_t NativeState();

    80 };

    82 class XULLinkAccessible : public XULLabelAccessible

    83 {

    85 public:

    86   XULLinkAccessible(nsIContent* aContent, DocAccessible* aDoc);

    88   NS_DECL_ISUPPORTS_INHERITED

    90   // nsIAccessible

    91   NS_IMETHOD GetActionName(uint8_t aIndex, nsAString& aName);

    92   NS_IMETHOD DoAction(uint8_t aIndex);

    94   // Accessible

    95   virtual void Value(nsString& aValue);

    96   virtual a11y::role NativeRole();

    97   virtual uint64_t NativeLinkState() const;

    99   // ActionAccessible

   100   virtual uint8_t ActionCount();

   102   // HyperLinkAccessible

   103   virtual bool IsLink();

   104   virtual uint32_t StartOffset();

   105   virtual uint32_t EndOffset();

   106   virtual already_AddRefed<nsIURI> AnchorURIAt(uint32_t aAnchorIndex);

   108 protected:

   109   // Accessible

   110   virtual ENameValueFlag NativeName(nsString& aName) MOZ_OVERRIDE;

   112   enum { eAction_Jump = 0 };

   114 };

   116 } // namespace a11y

   117 } // namespace mozilla

   119 #endif

The Tor Browser / file revision

accessible/src/xul/XULElementAccessibles.h@97036ab72558

accessible/src/xul/XULElementAccessibles.h