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/* -*- 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/. */
#include "HTMLListAccessible.h"
#include "DocAccessible.h"
#include "nsAccUtils.h"
#include "Role.h"
#include "States.h"
#include "EventTree.h"
#include "nsBlockFrame.h"
#include "nsBulletFrame.h"
using namespace mozilla;
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// HTMLListAccessible
////////////////////////////////////////////////////////////////////////////////
NS_IMPL_ISUPPORTS_INHERITED0(HTMLListAccessible, HyperTextAccessible)
role
HTMLListAccessible::NativeRole()
{
a11y::role r = GetAccService()->MarkupRole(mContent);
return r != roles::NOTHING ? r : roles::LIST;
}
uint64_t
HTMLListAccessible::NativeState()
{
return HyperTextAccessibleWrap::NativeState() | states::READONLY;
}
////////////////////////////////////////////////////////////////////////////////
// HTMLLIAccessible
////////////////////////////////////////////////////////////////////////////////
HTMLLIAccessible::
HTMLLIAccessible(nsIContent* aContent, DocAccessible* aDoc) :
HyperTextAccessibleWrap(aContent, aDoc), mBullet(nullptr)
{
mType = eHTMLLiType;
nsBlockFrame* blockFrame = do_QueryFrame(GetFrame());
if (blockFrame && blockFrame->HasBullet()) {
mBullet = new HTMLListBulletAccessible(mContent, mDoc);
Document()->BindToDocument(mBullet, nullptr);
AppendChild(mBullet);
}
}
NS_IMPL_ISUPPORTS_INHERITED0(HTMLLIAccessible, HyperTextAccessible)
void
HTMLLIAccessible::Shutdown()
{
mBullet = nullptr;
HyperTextAccessibleWrap::Shutdown();
}
role
HTMLLIAccessible::NativeRole()
{
a11y::role r = GetAccService()->MarkupRole(mContent);
return r != roles::NOTHING ? r : roles::LISTITEM;
}
uint64_t
HTMLLIAccessible::NativeState()
{
return HyperTextAccessibleWrap::NativeState() | states::READONLY;
}
nsIntRect
HTMLLIAccessible::Bounds() const
{
nsIntRect rect = AccessibleWrap::Bounds();
if (rect.IsEmpty() || !mBullet || mBullet->IsInside())
return rect;
nsIntRect bulletRect = mBullet->Bounds();
rect.width += rect.x - bulletRect.x;
rect.x = bulletRect.x; // Move x coordinate of list item over to cover bullet as well
return rect;
}
bool
HTMLLIAccessible::InsertChildAt(uint32_t aIndex, Accessible* aChild)
{
// Adjust index if there's a bullet.
if (mBullet && aIndex == 0 && aChild != mBullet) {
return HyperTextAccessible::InsertChildAt(aIndex + 1, aChild);
}
return HyperTextAccessible::InsertChildAt(aIndex, aChild);
}
////////////////////////////////////////////////////////////////////////////////
// HTMLLIAccessible: public
void
HTMLLIAccessible::UpdateBullet(bool aHasBullet)
{
if (aHasBullet == !!mBullet) {
NS_NOTREACHED("Bullet and accessible are in sync already!");
return;
}
TreeMutation mt(this);
if (aHasBullet) {
mBullet = new HTMLListBulletAccessible(mContent, mDoc);
mDoc->BindToDocument(mBullet, nullptr);
InsertChildAt(0, mBullet);
mt.AfterInsertion(mBullet);
}
else {
mt.BeforeRemoval(mBullet);
RemoveChild(mBullet);
mBullet = nullptr;
}
mt.Done();
}
////////////////////////////////////////////////////////////////////////////////
// HTMLListBulletAccessible
////////////////////////////////////////////////////////////////////////////////
HTMLListBulletAccessible::
HTMLListBulletAccessible(nsIContent* aContent, DocAccessible* aDoc) :
LeafAccessible(aContent, aDoc)
{
mGenericTypes |= eText;
mStateFlags |= eSharedNode;
}
////////////////////////////////////////////////////////////////////////////////
// HTMLListBulletAccessible: Accessible
nsIFrame*
HTMLListBulletAccessible::GetFrame() const
{
nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
return blockFrame ? blockFrame->GetBullet() : nullptr;
}
ENameValueFlag
HTMLListBulletAccessible::Name(nsString &aName)
{
aName.Truncate();
// Native anonymous content, ARIA can't be used. Get list bullet text.
nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
if (blockFrame) {
blockFrame->GetSpokenBulletText(aName);
}
return eNameOK;
}
role
HTMLListBulletAccessible::NativeRole()
{
return roles::STATICTEXT;
}
uint64_t
HTMLListBulletAccessible::NativeState()
{
return LeafAccessible::NativeState() | states::READONLY;
}
void
HTMLListBulletAccessible::AppendTextTo(nsAString& aText, uint32_t aStartOffset,
uint32_t aLength)
{
nsAutoString bulletText;
nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
if (blockFrame)
blockFrame->GetSpokenBulletText(bulletText);
aText.Append(Substring(bulletText, aStartOffset, aLength));
}
////////////////////////////////////////////////////////////////////////////////
// HTMLListBulletAccessible: public
bool
HTMLListBulletAccessible::IsInside() const
{
nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
return blockFrame ? blockFrame->HasInsideBullet() : false;
}
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