The Tor Browser: accessible/src/html/HTMLListAccessible.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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 file,

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

     7 #ifndef mozilla_a11y_HTMLListAccessible_h__

     8 #define mozilla_a11y_HTMLListAccessible_h__

    10 #include "BaseAccessibles.h"

    11 #include "HyperTextAccessibleWrap.h"

    13 namespace mozilla {

    14 namespace a11y {

    16 class HTMLListBulletAccessible;

    18 /**

    19  * Used for HTML list (like HTML ul).

    20  */

    21 class HTMLListAccessible : public HyperTextAccessibleWrap

    22 {

    23 public:

    24   HTMLListAccessible(nsIContent* aContent, DocAccessible* aDoc) :

    25     HyperTextAccessibleWrap(aContent, aDoc) { mGenericTypes |= eList; }

    26   virtual ~HTMLListAccessible() { }

    28   // nsISupports

    29   NS_DECL_ISUPPORTS_INHERITED

    31   // Accessible

    32   virtual a11y::role NativeRole();

    33   virtual uint64_t NativeState();

    34 };

    37 /**

    38  * Used for HTML list item (e.g. HTML li).

    39  */

    40 class HTMLLIAccessible : public HyperTextAccessibleWrap

    41 {

    42 public:

    43   HTMLLIAccessible(nsIContent* aContent, DocAccessible* aDoc);

    44   virtual ~HTMLLIAccessible() { }

    46   // nsISupports

    47   NS_DECL_ISUPPORTS_INHERITED

    49   // nsIAccessible

    50   NS_IMETHOD GetBounds(int32_t* aX, int32_t* aY,

    51                        int32_t* aWidth, int32_t* aHeight);

    53   // Accessible

    54   virtual void Shutdown();

    55   virtual a11y::role NativeRole();

    56   virtual uint64_t NativeState();

    58   // HTMLLIAccessible

    59   HTMLListBulletAccessible* Bullet() const { return mBullet; }

    60   void UpdateBullet(bool aHasBullet);

    62 protected:

    63   // Accessible

    64   virtual void CacheChildren();

    66 private:

    67   nsRefPtr<HTMLListBulletAccessible> mBullet;

    68 };

    71 /**

    72  * Used for bullet of HTML list item element (for example, HTML li).

    73  */

    74 class HTMLListBulletAccessible : public LeafAccessible

    75 {

    76 public:

    77   HTMLListBulletAccessible(nsIContent* aContent, DocAccessible* aDoc);

    78   virtual ~HTMLListBulletAccessible() { }

    80   // Accessible

    81   virtual nsIFrame* GetFrame() const;

    82   virtual ENameValueFlag Name(nsString& aName);

    83   virtual a11y::role NativeRole();

    84   virtual uint64_t NativeState();

    85   virtual void AppendTextTo(nsAString& aText, uint32_t aStartOffset = 0,

    86                             uint32_t aLength = UINT32_MAX);

    88   // HTMLListBulletAccessible

    90   /**

    91    * Return true if the bullet is inside of list item element boundaries.

    92    */

    93   bool IsInside() const;

    94 };

    97 inline HTMLLIAccessible*

    98 Accessible::AsHTMLListItem()

    99 {

   100   return IsHTMLListItem() ? static_cast<HTMLLIAccessible*>(this) : nullptr;

   101 }

   103 } // namespace a11y

   104 } // namespace mozilla

   106 #endif

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