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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /accessible/xul/XULSliderAccessible.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'accessible/xul/XULSliderAccessible.cpp')
-rw-r--r--accessible/xul/XULSliderAccessible.cpp214
1 files changed, 214 insertions, 0 deletions
diff --git a/accessible/xul/XULSliderAccessible.cpp b/accessible/xul/XULSliderAccessible.cpp
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+++ b/accessible/xul/XULSliderAccessible.cpp
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+/* -*- 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 "XULSliderAccessible.h"
+
+#include "nsAccessibilityService.h"
+#include "Role.h"
+#include "States.h"
+
+#include "nsIFrame.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/FloatingPoint.h"
+
+using namespace mozilla::a11y;
+
+////////////////////////////////////////////////////////////////////////////////
+// XULSliderAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULSliderAccessible::
+ XULSliderAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+ AccessibleWrap(aContent, aDoc)
+{
+ mStateFlags |= eHasNumericValue | eNoXBLKids;
+}
+
+// Accessible
+
+role
+XULSliderAccessible::NativeRole()
+{
+ return roles::SLIDER;
+}
+
+uint64_t
+XULSliderAccessible::NativeInteractiveState() const
+ {
+ if (NativelyUnavailable())
+ return states::UNAVAILABLE;
+
+ nsIContent* sliderElm = GetSliderElement();
+ if (sliderElm) {
+ nsIFrame* frame = sliderElm->GetPrimaryFrame();
+ if (frame && frame->IsFocusable())
+ return states::FOCUSABLE;
+ }
+
+ return 0;
+}
+
+bool
+XULSliderAccessible::NativelyUnavailable() const
+{
+ return mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled,
+ nsGkAtoms::_true, eCaseMatters);
+}
+
+void
+XULSliderAccessible::Value(nsString& aValue)
+{
+ GetSliderAttr(nsGkAtoms::curpos, aValue);
+}
+
+uint8_t
+XULSliderAccessible::ActionCount()
+{
+ return 1;
+}
+
+void
+XULSliderAccessible::ActionNameAt(uint8_t aIndex, nsAString& aName)
+{
+ aName.Truncate();
+ if (aIndex == 0)
+ aName.AssignLiteral("activate");
+}
+
+bool
+XULSliderAccessible::DoAction(uint8_t aIndex)
+{
+ if (aIndex != 0)
+ return false;
+
+ nsIContent* sliderElm = GetSliderElement();
+ if (sliderElm)
+ DoCommand(sliderElm);
+
+ return true;
+}
+
+double
+XULSliderAccessible::MaxValue() const
+{
+ double value = AccessibleWrap::MaxValue();
+ return IsNaN(value) ? GetSliderAttr(nsGkAtoms::maxpos) : value;
+}
+
+double
+XULSliderAccessible::MinValue() const
+{
+ double value = AccessibleWrap::MinValue();
+ return IsNaN(value) ? GetSliderAttr(nsGkAtoms::minpos) : value;
+}
+
+double
+XULSliderAccessible::Step() const
+{
+ double value = AccessibleWrap::Step();
+ return IsNaN(value) ? GetSliderAttr(nsGkAtoms::increment) : value;
+}
+
+double
+XULSliderAccessible::CurValue() const
+{
+ double value = AccessibleWrap::CurValue();
+ return IsNaN(value) ? GetSliderAttr(nsGkAtoms::curpos) : value;
+}
+
+bool
+XULSliderAccessible::SetCurValue(double aValue)
+{
+ if (AccessibleWrap::SetCurValue(aValue))
+ return true;
+
+ return SetSliderAttr(nsGkAtoms::curpos, aValue);
+}
+
+// Utils
+
+nsIContent*
+XULSliderAccessible::GetSliderElement() const
+{
+ if (!mSliderNode) {
+ // XXX: we depend on anonymous content.
+ mSliderNode = mContent->OwnerDoc()->
+ GetAnonymousElementByAttribute(mContent, nsGkAtoms::anonid,
+ NS_LITERAL_STRING("slider"));
+ }
+
+ return mSliderNode;
+}
+
+nsresult
+XULSliderAccessible::GetSliderAttr(nsIAtom* aName, nsAString& aValue) const
+{
+ aValue.Truncate();
+
+ if (IsDefunct())
+ return NS_ERROR_FAILURE;
+
+ nsIContent* sliderElm = GetSliderElement();
+ if (sliderElm)
+ sliderElm->GetAttr(kNameSpaceID_None, aName, aValue);
+
+ return NS_OK;
+}
+
+nsresult
+XULSliderAccessible::SetSliderAttr(nsIAtom* aName, const nsAString& aValue)
+{
+ if (IsDefunct())
+ return NS_ERROR_FAILURE;
+
+ nsIContent* sliderElm = GetSliderElement();
+ if (sliderElm)
+ sliderElm->SetAttr(kNameSpaceID_None, aName, aValue, true);
+
+ return NS_OK;
+}
+
+double
+XULSliderAccessible::GetSliderAttr(nsIAtom* aName) const
+{
+ nsAutoString attrValue;
+ nsresult rv = GetSliderAttr(aName, attrValue);
+ if (NS_FAILED(rv))
+ return UnspecifiedNaN<double>();
+
+ nsresult error = NS_OK;
+ double value = attrValue.ToDouble(&error);
+ return NS_FAILED(error) ? UnspecifiedNaN<double>() : value;
+}
+
+bool
+XULSliderAccessible::SetSliderAttr(nsIAtom* aName, double aValue)
+{
+ nsAutoString value;
+ value.AppendFloat(aValue);
+
+ return NS_SUCCEEDED(SetSliderAttr(aName, value));
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+// XULThumbAccessible
+////////////////////////////////////////////////////////////////////////////////
+
+XULThumbAccessible::
+ XULThumbAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+ AccessibleWrap(aContent, aDoc)
+{
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// XULThumbAccessible: Accessible
+
+role
+XULThumbAccessible::NativeRole()
+{
+ return roles::INDICATOR;
+}
+