Add m-esr52 at 52.6.0

1 files changed, 633 insertions, 0 deletions

diff --git a/accessible/xul/XULFormControlAccessible.cpp b/accessible/xul/XULFormControlAccessible.cpp
new file mode 100644
index 000000000..95947f37c
--- /dev/null
+++ b/accessible/xul/XULFormControlAccessible.cpp
@@ -0,0 +1,633 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+#include "XULFormControlAccessible.h"
+
+#include "Accessible-inl.h"
+#include "HTMLFormControlAccessible.h"
+#include "nsAccUtils.h"
+#include "nsCoreUtils.h"
+#include "DocAccessible.h"
+#include "nsIAccessibleRelation.h"
+#include "Relation.h"
+#include "Role.h"
+#include "States.h"
+#include "TreeWalker.h"
+#include "XULMenuAccessible.h"
+
+#include "nsIDOMNSEditableElement.h"
+#include "nsIDOMXULButtonElement.h"
+#include "nsIDOMXULCheckboxElement.h"
+#include "nsIDOMXULMenuListElement.h"
+#include "nsIDOMXULSelectCntrlItemEl.h"
+#include "nsIDOMXULTextboxElement.h"
+#include "nsIEditor.h"
+#include "nsIFrame.h"
+#include "nsITextControlFrame.h"
+#include "nsMenuPopupFrame.h"
+#include "nsNameSpaceManager.h"
+#include "mozilla/dom/Element.h"
+
+using namespace mozilla::a11y;
+
+////////////////////////////////////////////////////////////////////////////////
+// XULButtonAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULButtonAccessible::
+  XULButtonAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  AccessibleWrap(aContent, aDoc)
+{
+  if (ContainsMenu()) {
+    mGenericTypes |= eMenuButton;
+  } else {
+    mGenericTypes |= eButton;
+  }
+}
+
+XULButtonAccessible::~XULButtonAccessible()
+{
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULButtonAccessible: nsISupports
+
+NS_IMPL_ISUPPORTS_INHERITED0(XULButtonAccessible, Accessible)
+
+////////////////////////////////////////////////////////////////////////////////
+// XULButtonAccessible: nsIAccessible
+
+uint8_t
+XULButtonAccessible::ActionCount()
+{
+  return 1;
+}
+
+void
+XULButtonAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
+{
+  if (aIndex == eAction_Click)
+    aName.AssignLiteral("press");
+}
+
+bool
+XULButtonAccessible::DoAction(uint8_t aIndex)
+{
+  if (aIndex != 0)
+    return false;
+
+  DoCommand();
+  return true;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULButtonAccessible: Accessible
+
+role
+XULButtonAccessible::NativeRole()
+{
+  return roles::PUSHBUTTON;
+}
+
+uint64_t
+XULButtonAccessible::NativeState()
+{
+  // Possible states: focused, focusable, unavailable(disabled).
+
+  // get focus and disable status from base class
+  uint64_t state = Accessible::NativeState();
+
+  // Buttons can be checked -- they simply appear pressed in rather than checked
+  nsCOMPtr<nsIDOMXULButtonElement> xulButtonElement(do_QueryInterface(mContent));
+  if (xulButtonElement) {
+    nsAutoString type;
+    xulButtonElement->GetType(type);
+    if (type.EqualsLiteral("checkbox") || type.EqualsLiteral("radio")) {
+      state |= states::CHECKABLE;
+      bool checked = false;
+      int32_t checkState = 0;
+      xulButtonElement->GetChecked(&checked);
+      if (checked) {
+        state |= states::PRESSED;
+        xulButtonElement->GetCheckState(&checkState);
+        if (checkState == nsIDOMXULButtonElement::CHECKSTATE_MIXED) { 
+          state |= states::MIXED;
+        }
+      }
+    }
+  }
+
+  if (ContainsMenu())
+    state |= states::HASPOPUP;
+
+  if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::_default))
+    state |= states::DEFAULT;
+
+  return state;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULButtonAccessible: Widgets
+
+bool
+XULButtonAccessible::IsWidget() const
+{
+  return true;
+}
+
+bool
+XULButtonAccessible::IsActiveWidget() const
+{
+  return FocusMgr()->HasDOMFocus(mContent);
+}
+
+bool
+XULButtonAccessible::AreItemsOperable() const
+{
+  if (IsMenuButton()) {
+    Accessible* menuPopup = mChildren.SafeElementAt(0, nullptr);
+    if (menuPopup) {
+      nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(menuPopup->GetFrame());
+      return menuPopupFrame->IsOpen();
+    }
+  }
+  return false; // no items
+}
+
+Accessible*
+XULButtonAccessible::ContainerWidget() const
+{
+  if (IsMenuButton() && mParent && mParent->IsAutoComplete())
+    return mParent;
+  return nullptr;
+}
+
+bool
+XULButtonAccessible::IsAcceptableChild(nsIContent* aEl) const
+{
+  // In general XUL button has not accessible children. Nevertheless menu
+  // buttons can have button (@type="menu-button") and popup accessibles
+  // (@type="menu-button", @type="menu" or columnpicker.
+
+  // XXX: no children until the button is menu button. Probably it's not
+  // totally correct but in general AT wants to have leaf buttons.
+  nsAutoString role;
+  nsCoreUtils::XBLBindingRole(aEl, role);
+
+  // Get an accessible for menupopup or panel elements.
+  if (role.EqualsLiteral("xul:menupopup")) {
+    return true;
+  }
+
+  // Button type="menu-button" contains a real button. Get an accessible
+  // for it. Ignore dropmarker button which is placed as a last child.
+  if ((!role.EqualsLiteral("xul:button") &&
+       !role.EqualsLiteral("xul:toolbarbutton")) ||
+      aEl->IsXULElement(nsGkAtoms::dropMarker)) {
+    return false;
+  }
+
+  return mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
+                               nsGkAtoms::menuButton, eCaseMatters);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULButtonAccessible protected
+
+bool
+XULButtonAccessible::ContainsMenu() const
+{
+  static nsIContent::AttrValuesArray strings[] =
+    {&nsGkAtoms::menu, &nsGkAtoms::menuButton, nullptr};
+
+  return mContent->FindAttrValueIn(kNameSpaceID_None,
+                                   nsGkAtoms::type,
+                                   strings, eCaseMatters) >= 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULDropmarkerAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULDropmarkerAccessible::
+  XULDropmarkerAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  LeafAccessible(aContent, aDoc)
+{
+}
+
+uint8_t
+XULDropmarkerAccessible::ActionCount()
+{
+  return 1;
+}
+
+bool
+XULDropmarkerAccessible::DropmarkerOpen(bool aToggleOpen) const
+{
+  bool isOpen = false;
+
+  nsIContent* parent = mContent->GetFlattenedTreeParent();
+
+  while (parent) {
+    nsCOMPtr<nsIDOMXULButtonElement> parentButtonElement =
+      do_QueryInterface(parent);
+    if (parentButtonElement) {
+      parentButtonElement->GetOpen(&isOpen);
+      if (aToggleOpen)
+        parentButtonElement->SetOpen(!isOpen);
+      return isOpen;
+    }
+
+    nsCOMPtr<nsIDOMXULMenuListElement> parentMenuListElement =
+      do_QueryInterface(parent);
+    if (parentMenuListElement) {
+      parentMenuListElement->GetOpen(&isOpen);
+      if (aToggleOpen)
+        parentMenuListElement->SetOpen(!isOpen);
+      return isOpen;
+    }
+    parent = parent->GetFlattenedTreeParent();
+  }
+
+  return isOpen;
+}
+
+void
+XULDropmarkerAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
+{
+  aName.Truncate();
+  if (aIndex == eAction_Click) {
+    if (DropmarkerOpen(false))
+      aName.AssignLiteral("close");
+    else
+      aName.AssignLiteral("open");
+  }
+}
+
+bool
+XULDropmarkerAccessible::DoAction(uint8_t index)
+{
+  if (index == eAction_Click) {
+    DropmarkerOpen(true); // Reverse the open attribute
+    return true;
+  }
+  return false;
+}
+
+role
+XULDropmarkerAccessible::NativeRole()
+{
+  return roles::PUSHBUTTON;
+}
+
+uint64_t
+XULDropmarkerAccessible::NativeState()
+{
+  return DropmarkerOpen(false) ? states::PRESSED : 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULCheckboxAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULCheckboxAccessible::
+  XULCheckboxAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  LeafAccessible(aContent, aDoc)
+{
+}
+
+role
+XULCheckboxAccessible::NativeRole()
+{
+  return roles::CHECKBUTTON;
+}
+
+uint8_t
+XULCheckboxAccessible::ActionCount()
+{
+  return 1;
+}
+
+void
+XULCheckboxAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
+{
+  if (aIndex == eAction_Click) {
+    if (NativeState() & states::CHECKED)
+      aName.AssignLiteral("uncheck");
+    else
+      aName.AssignLiteral("check");
+  }
+}
+
+bool
+XULCheckboxAccessible::DoAction(uint8_t aIndex)
+{
+  if (aIndex != eAction_Click)
+    return false;
+
+  DoCommand();
+  return true;
+}
+
+uint64_t
+XULCheckboxAccessible::NativeState()
+{
+  // Possible states: focused, focusable, unavailable(disabled), checked
+  // Get focus and disable status from base class
+  uint64_t state = LeafAccessible::NativeState();
+  
+  state |= states::CHECKABLE;
+  
+  // Determine Checked state
+  nsCOMPtr<nsIDOMXULCheckboxElement> xulCheckboxElement =
+    do_QueryInterface(mContent);
+  if (xulCheckboxElement) {
+    bool checked = false;
+    xulCheckboxElement->GetChecked(&checked);
+    if (checked) {
+      state |= states::CHECKED;
+      int32_t checkState = 0;
+      xulCheckboxElement->GetCheckState(&checkState);
+      if (checkState == nsIDOMXULCheckboxElement::CHECKSTATE_MIXED)
+        state |= states::MIXED;
+    }
+  }
+
+  return state;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULGroupboxAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULGroupboxAccessible::
+  XULGroupboxAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  AccessibleWrap(aContent, aDoc)
+{
+}
+
+role
+XULGroupboxAccessible::NativeRole()
+{
+  return roles::GROUPING;
+}
+
+ENameValueFlag
+XULGroupboxAccessible::NativeName(nsString& aName)
+{
+  // XXX: we use the first related accessible only.
+  Accessible* label =
+    RelationByType(RelationType::LABELLED_BY).Next();
+  if (label)
+    return label->Name(aName);
+
+  return eNameOK;
+}
+
+Relation
+XULGroupboxAccessible::RelationByType(RelationType aType)
+{
+  Relation rel = AccessibleWrap::RelationByType(aType);
+  if (aType != RelationType::LABELLED_BY)
+    return rel;
+
+  // The label for xul:groupbox is generated from xul:label that is
+  // inside the anonymous content of the xul:caption.
+  // The xul:label has an accessible object but the xul:caption does not
+  uint32_t childCount = ChildCount();
+  for (uint32_t childIdx = 0; childIdx < childCount; childIdx++) {
+    Accessible* childAcc = GetChildAt(childIdx);
+    if (childAcc->Role() == roles::LABEL) {
+      // Ensure that it's our label
+      Relation reverseRel = childAcc->RelationByType(RelationType::LABEL_FOR);
+      Accessible* testGroupbox = nullptr;
+      while ((testGroupbox = reverseRel.Next()))
+        if (testGroupbox == this) {
+          // The <label> points back to this groupbox
+          rel.AppendTarget(childAcc);
+        }
+    }
+  }
+
+  return rel;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULRadioButtonAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULRadioButtonAccessible::
+  XULRadioButtonAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  RadioButtonAccessible(aContent, aDoc)
+{
+}
+
+uint64_t
+XULRadioButtonAccessible::NativeState()
+{
+  uint64_t state = LeafAccessible::NativeState();
+  state |= states::CHECKABLE;
+
+  nsCOMPtr<nsIDOMXULSelectControlItemElement> radioButton =
+    do_QueryInterface(mContent);
+  if (radioButton) {
+    bool selected = false;   // Radio buttons can be selected
+    radioButton->GetSelected(&selected);
+    if (selected) {
+      state |= states::CHECKED;
+    }
+  }
+
+  return state;
+}
+
+uint64_t
+XULRadioButtonAccessible::NativeInteractiveState() const
+{
+  return NativelyUnavailable() ? states::UNAVAILABLE : states::FOCUSABLE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULRadioButtonAccessible: Widgets
+
+Accessible*
+XULRadioButtonAccessible::ContainerWidget() const
+{
+  return mParent;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// XULRadioGroupAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+/**
+  * XUL Radio Group
+  *   The Radio Group proxies for the Radio Buttons themselves. The Group gets
+  *   focus whereas the Buttons do not. So we only have an accessible object for
+  *   this for the purpose of getting the proper RadioButton. Need this here to 
+  *   avoid circular reference problems when navigating the accessible tree and
+  *   for getting to the radiobuttons.
+  */
+
+XULRadioGroupAccessible::
+  XULRadioGroupAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  XULSelectControlAccessible(aContent, aDoc)
+{ 
+}
+
+role
+XULRadioGroupAccessible::NativeRole()
+{
+  return roles::RADIO_GROUP;
+}
+
+uint64_t
+XULRadioGroupAccessible::NativeInteractiveState() const
+{
+  // The radio group is not focusable. Sometimes the focus controller will
+  // report that it is focused. That means that the actual selected radio button
+  // should be considered focused.
+  return NativelyUnavailable() ? states::UNAVAILABLE : 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULRadioGroupAccessible: Widgets
+
+bool
+XULRadioGroupAccessible::IsWidget() const
+{
+  return true;
+}
+
+bool
+XULRadioGroupAccessible::IsActiveWidget() const
+{
+  return FocusMgr()->HasDOMFocus(mContent);
+}
+
+bool
+XULRadioGroupAccessible::AreItemsOperable() const
+{
+  return true;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// XULStatusBarAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULStatusBarAccessible::
+  XULStatusBarAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  AccessibleWrap(aContent, aDoc)
+{
+}
+
+role
+XULStatusBarAccessible::NativeRole()
+{
+  return roles::STATUSBAR;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// XULToolbarButtonAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULToolbarButtonAccessible::
+  XULToolbarButtonAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  XULButtonAccessible(aContent, aDoc)
+{
+}
+
+void
+XULToolbarButtonAccessible::GetPositionAndSizeInternal(int32_t* aPosInSet,
+                                                       int32_t* aSetSize)
+{
+  int32_t setSize = 0;
+  int32_t posInSet = 0;
+
+  Accessible* parent = Parent();
+  if (!parent)
+    return;
+
+  uint32_t childCount = parent->ChildCount();
+  for (uint32_t childIdx = 0; childIdx < childCount; childIdx++) {
+    Accessible* child = parent->GetChildAt(childIdx);
+    if (IsSeparator(child)) { // end of a group of buttons
+      if (posInSet)
+        break; // we've found our group, so we're done
+
+      setSize = 0; // not our group, so start a new group
+
+    } else {
+      setSize++; // another button in the group
+
+      if (child == this)
+        posInSet = setSize; // we've found our button
+    }
+  }
+
+  *aPosInSet = posInSet;
+  *aSetSize = setSize;
+}
+
+bool
+XULToolbarButtonAccessible::IsSeparator(Accessible* aAccessible)
+{
+  nsIContent* content = aAccessible->GetContent();
+  return content && content->IsAnyOfXULElements(nsGkAtoms::toolbarseparator,
+                                                nsGkAtoms::toolbarspacer,
+                                                nsGkAtoms::toolbarspring);
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// XULToolbarAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULToolbarAccessible::
+  XULToolbarAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  AccessibleWrap(aContent, aDoc)
+{
+}
+
+role
+XULToolbarAccessible::NativeRole()
+{
+  return roles::TOOLBAR;
+}
+
+ENameValueFlag
+XULToolbarAccessible::NativeName(nsString& aName)
+{
+  if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::toolbarname, aName))
+    aName.CompressWhitespace();
+
+  return eNameOK;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// XULToolbarAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULToolbarSeparatorAccessible::
+  XULToolbarSeparatorAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+  LeafAccessible(aContent, aDoc)
+{
+}
+
+role
+XULToolbarSeparatorAccessible::NativeRole()
+{
+  return roles::SEPARATOR;
+}
+
+uint64_t
+XULToolbarSeparatorAccessible::NativeState()
+{
+  return 0;
+}