accessible/html/HTMLListAccessible.h

   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/. */
   6
   7 #ifndef mozilla_a11y_HTMLListAccessible_h__
   8 #define mozilla_a11y_HTMLListAccessible_h__
   9
  10 #include "BaseAccessibles.h"
  11 #include "HyperTextAccessible.h"
  12
  13 namespace mozilla {
  14 namespace a11y {
  15
  16 class HTMLListBulletAccessible;
  17
  18 /**
  19  * Used for HTML list (like HTML ul).
  20  */
  21 class HTMLListAccessible : public HyperTextAccessible {
  22  public:
  23   HTMLListAccessible(nsIContent* aContent, DocAccessible* aDoc)
  24       : HyperTextAccessible(aContent, aDoc) {
  25     mGenericTypes |= eList;
  26   }
  27
  28   // nsISupports
  29   NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLListAccessible, HyperTextAccessible)
  30
  31   // LocalAccessible
  32   virtual a11y::role NativeRole() const override;
  33   virtual uint64_t NativeState() const override;
  34
  35  protected:
  36   virtual ~HTMLListAccessible() {}
  37 };
  38
  39 /**
  40  * Used for HTML list item (e.g. HTML li).
  41  */
  42 class HTMLLIAccessible : public HyperTextAccessible {
  43  public:
  44   HTMLLIAccessible(nsIContent* aContent, DocAccessible* aDoc);
  45
  46   // nsISupports
  47   NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLLIAccessible, HyperTextAccessible)
  48
  49   // LocalAccessible
  50   virtual nsRect BoundsInAppUnits() const override;
  51   virtual a11y::role NativeRole() const override;
  52   virtual uint64_t NativeState() const override;
  53
  54   // HTMLLIAccessible
  55   LocalAccessible* Bullet() const;
  56
  57  protected:
  58   virtual ~HTMLLIAccessible() {}
  59 };
  60
  61 /**
  62  * Used for bullet of HTML list item element (for example, HTML li).
  63  */
  64 class HTMLListBulletAccessible : public LeafAccessible {
  65  public:
  66   HTMLListBulletAccessible(nsIContent* aContent, DocAccessible* aDoc);
  67   virtual ~HTMLListBulletAccessible() {}
  68
  69   // LocalAccessible
  70   virtual ENameValueFlag Name(nsString& aName) const override;
  71   virtual a11y::role NativeRole() const override;
  72   virtual uint64_t NativeState() const override;
  73   virtual already_AddRefed<AccAttributes> NativeAttributes() override;
  74   virtual void AppendTextTo(nsAString& aText, uint32_t aStartOffset = 0,
  75                             uint32_t aLength = UINT32_MAX) override;
  76 };
  77
  78 inline HTMLLIAccessible* LocalAccessible::AsHTMLListItem() {
  79   return IsHTMLListItem() ? static_cast<HTMLLIAccessible*>(this) : nullptr;
  80 }
  81
  82 }  // namespace a11y
  83 }  // namespace mozilla
  84
  85 #endif