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The Tor Browser
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HTMLListAccessible.h (2477B)

      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 DirectName(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