Add m-esr52 at 52.6.0

1 files changed, 211 insertions, 0 deletions

diff --git a/accessible/ipc/ProxyAccessibleBase.h b/accessible/ipc/ProxyAccessibleBase.h
new file mode 100644
index 000000000..bea669ffa
--- /dev/null
+++ b/accessible/ipc/ProxyAccessibleBase.h
@@ -0,0 +1,211 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_a11y_ProxyAccessibleBase_h
+#define mozilla_a11y_ProxyAccessibleBase_h
+
+#include "mozilla/a11y/Role.h"
+#include "nsIAccessibleText.h"
+#include "nsIAccessibleTypes.h"
+#include "Accessible.h"
+#include "nsString.h"
+#include "nsTArray.h"
+#include "nsRect.h"
+#include "Accessible.h"
+
+namespace mozilla {
+namespace a11y {
+
+class Accessible;
+class Attribute;
+class DocAccessibleParent;
+class ProxyAccessible;
+enum class RelationType;
+
+enum Interfaces
+{
+  HYPERTEXT = 1,
+  HYPERLINK = 1 << 1,
+  IMAGE = 1 << 2,
+  VALUE = 1 << 3,
+  TABLE = 1 << 4,
+  TABLECELL = 1 << 5,
+  DOCUMENT = 1 << 6,
+  SELECTION = 1 << 7,
+  ACTION = 1 << 8,
+};
+
+template <class Derived>
+class ProxyAccessibleBase
+{
+public:
+  ~ProxyAccessibleBase()
+  {
+    MOZ_ASSERT(!mWrapper);
+  }
+
+  void AddChildAt(uint32_t aIdx, Derived* aChild)
+  { mChildren.InsertElementAt(aIdx, aChild); }
+
+  uint32_t ChildrenCount() const { return mChildren.Length(); }
+  Derived* ChildAt(uint32_t aIdx) const { return mChildren[aIdx]; }
+  Derived* FirstChild() const
+    { return mChildren.Length() ? mChildren[0] : nullptr; }
+  Derived* LastChild() const
+    { return mChildren.Length() ? mChildren[mChildren.Length() - 1] : nullptr; }
+  Derived* PrevSibling() const
+  {
+    size_t idx = IndexInParent();
+    return idx > 0 ? Parent()->mChildren[idx - 1] : nullptr;
+  }
+  Derived* NextSibling() const
+  {
+    size_t idx = IndexInParent();
+    return idx + 1 < Parent()->mChildren.Length() ? Parent()->mChildren[idx + 1]
+    : nullptr;
+  }
+
+  // XXX evaluate if this is fast enough.
+  size_t IndexInParent() const { return
+    Parent()->mChildren.IndexOf(static_cast<const Derived*>(this)); }
+  uint32_t EmbeddedChildCount() const;
+  int32_t IndexOfEmbeddedChild(const Derived* aChild);
+  Derived* EmbeddedChildAt(size_t aChildIdx);
+  bool MustPruneChildren() const;
+
+  void Shutdown();
+
+  void SetChildDoc(DocAccessibleParent* aChildDoc);
+  void ClearChildDoc(DocAccessibleParent* aChildDoc);
+
+  /**
+   * Remove The given child.
+   */
+  void RemoveChild(Derived* aChild)
+    { mChildren.RemoveElement(aChild); }
+
+  /**
+   * Return the proxy for the parent of the wrapped accessible.
+   */
+  Derived* Parent() const { return mParent; }
+
+  Accessible* OuterDocOfRemoteBrowser() const;
+
+  /**
+   * Get the role of the accessible we're proxying.
+   */
+  role Role() const { return mRole; }
+
+  /**
+   * Return true if this is an embedded object.
+   */
+  bool IsEmbeddedObject() const
+  {
+    role role = Role();
+    return role != roles::TEXT_LEAF &&
+           role != roles::WHITESPACE &&
+           role != roles::STATICTEXT;
+  }
+
+  /**
+   * Allow the platform to store a pointers worth of data on us.
+   */
+  uintptr_t GetWrapper() const { return mWrapper; }
+  void SetWrapper(uintptr_t aWrapper) { mWrapper = aWrapper; }
+
+  /*
+   * Return the ID of the accessible being proxied.
+   */
+  uint64_t ID() const { return mID; }
+
+  /**
+   * Return the document containing this proxy, or the proxy itself if it is a
+   * document.
+   */
+  DocAccessibleParent* Document() const { return mDoc; }
+
+  /**
+   * Return true if this proxy is a DocAccessibleParent.
+   */
+  bool IsDoc() const { return mIsDoc; }
+  DocAccessibleParent* AsDoc() const { return IsDoc() ? mDoc : nullptr; }
+
+  // XXX checking mRole alone may not result in same behavior as Accessibles
+  // due to ARIA roles. See bug 1210477.
+  inline bool IsTable() const
+  {
+    return mRole == roles::TABLE || mRole == roles::MATHML_TABLE;
+  }
+  inline bool IsTableRow() const
+  {
+    return (mRole == roles::ROW ||
+        mRole == roles::MATHML_TABLE_ROW ||
+        mRole == roles::MATHML_LABELED_ROW);
+  }
+  inline bool IsTableCell() const
+  {
+    return (mRole == roles::CELL ||
+        mRole == roles::COLUMNHEADER ||
+        mRole == roles::ROWHEADER ||
+        mRole == roles::GRID_CELL ||
+        mRole == roles::MATHML_CELL);
+  }
+
+protected:
+  ProxyAccessibleBase(uint64_t aID, Derived* aParent,
+                      DocAccessibleParent* aDoc, role aRole,
+                      uint32_t aInterfaces)
+    : mParent(aParent)
+    , mDoc(aDoc)
+    , mWrapper(0)
+    , mID(aID)
+    , mRole(aRole)
+    , mOuterDoc(false)
+    , mIsDoc(false)
+    , mHasValue(aInterfaces & Interfaces::VALUE)
+    , mIsHyperLink(aInterfaces & Interfaces::HYPERLINK)
+    , mIsHyperText(aInterfaces & Interfaces::HYPERTEXT)
+  {
+  }
+
+  explicit ProxyAccessibleBase(DocAccessibleParent* aThisAsDoc) :
+    mParent(nullptr), mDoc(aThisAsDoc), mWrapper(0), mID(0),
+    mRole(roles::DOCUMENT), mOuterDoc(false), mIsDoc(true), mHasValue(false),
+    mIsHyperLink(false), mIsHyperText(false)
+  {}
+
+protected:
+  Derived* mParent;
+
+private:
+  friend Derived;
+
+  nsTArray<Derived*> mChildren;
+  DocAccessibleParent* mDoc;
+  uintptr_t mWrapper;
+  uint64_t mID;
+
+protected:
+  // XXX DocAccessibleParent gets to change this to change the role of
+  // documents.
+  role mRole : 27;
+
+private:
+  bool mOuterDoc : 1;
+
+public:
+  const bool mIsDoc: 1;
+  const bool mHasValue: 1;
+  const bool mIsHyperLink: 1;
+  const bool mIsHyperText: 1;
+};
+
+extern template class ProxyAccessibleBase<ProxyAccessible>;
+
+}
+}
+
+#endif