michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "HTMLListAccessible.h"
michael@0: 
michael@0: #include "DocAccessible.h"
michael@0: #include "nsAccUtils.h"
michael@0: #include "Role.h"
michael@0: #include "States.h"
michael@0: 
michael@0: #include "nsBlockFrame.h"
michael@0: #include "nsBulletFrame.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: using namespace mozilla::a11y;
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // HTMLListAccessible
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: NS_IMPL_ISUPPORTS_INHERITED0(HTMLListAccessible, HyperTextAccessible)
michael@0: 
michael@0: role
michael@0: HTMLListAccessible::NativeRole()
michael@0: {
michael@0:   if (mContent->Tag() == nsGkAtoms::dl)
michael@0:     return roles::DEFINITION_LIST;
michael@0: 
michael@0:   return roles::LIST;
michael@0: }
michael@0: 
michael@0: uint64_t
michael@0: HTMLListAccessible::NativeState()
michael@0: {
michael@0:   return HyperTextAccessibleWrap::NativeState() | states::READONLY;
michael@0: }
michael@0: 
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // HTMLLIAccessible
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: 
michael@0: HTMLLIAccessible::
michael@0:   HTMLLIAccessible(nsIContent* aContent, DocAccessible* aDoc) :
michael@0:   HyperTextAccessibleWrap(aContent, aDoc), mBullet(nullptr)
michael@0: {
michael@0:   mType = eHTMLLiType;
michael@0: 
michael@0:   nsBlockFrame* blockFrame = do_QueryFrame(GetFrame());
michael@0:   if (blockFrame && blockFrame->HasBullet()) {
michael@0:     mBullet = new HTMLListBulletAccessible(mContent, mDoc);
michael@0:     Document()->BindToDocument(mBullet, nullptr);
michael@0:   }
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS_INHERITED0(HTMLLIAccessible, HyperTextAccessible)
michael@0: 
michael@0: void
michael@0: HTMLLIAccessible::Shutdown()
michael@0: {
michael@0:   mBullet = nullptr;
michael@0: 
michael@0:   HyperTextAccessibleWrap::Shutdown();
michael@0: }
michael@0: 
michael@0: role
michael@0: HTMLLIAccessible::NativeRole()
michael@0: {
michael@0:   if (mContent->Tag() == nsGkAtoms::dt)
michael@0:     return roles::TERM;
michael@0: 
michael@0:   return roles::LISTITEM;
michael@0: }
michael@0: 
michael@0: uint64_t
michael@0: HTMLLIAccessible::NativeState()
michael@0: {
michael@0:   return HyperTextAccessibleWrap::NativeState() | states::READONLY;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: HTMLLIAccessible::GetBounds(int32_t* aX, int32_t* aY,
michael@0:                             int32_t* aWidth, int32_t* aHeight)
michael@0: {
michael@0:   nsresult rv = AccessibleWrap::GetBounds(aX, aY, aWidth, aHeight);
michael@0:   if (NS_FAILED(rv) || !mBullet || mBullet->IsInside())
michael@0:     return rv;
michael@0: 
michael@0:   int32_t bulletX = 0, bulletY = 0, bulletWidth = 0, bulletHeight = 0;
michael@0:   rv = mBullet->GetBounds(&bulletX, &bulletY, &bulletWidth, &bulletHeight);
michael@0:   NS_ENSURE_SUCCESS(rv, rv);
michael@0: 
michael@0:   *aWidth += *aX - bulletX;
michael@0:   *aX = bulletX; // Move x coordinate of list item over to cover bullet as well
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // HTMLLIAccessible: public
michael@0: 
michael@0: void
michael@0: HTMLLIAccessible::UpdateBullet(bool aHasBullet)
michael@0: {
michael@0:   if (aHasBullet == !!mBullet) {
michael@0:     NS_NOTREACHED("Bullet and accessible are in sync already!");
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   DocAccessible* document = Document();
michael@0:   if (aHasBullet) {
michael@0:     mBullet = new HTMLListBulletAccessible(mContent, mDoc);
michael@0:     document->BindToDocument(mBullet, nullptr);
michael@0:     InsertChildAt(0, mBullet);
michael@0:   } else {
michael@0:     RemoveChild(mBullet);
michael@0:     document->UnbindFromDocument(mBullet);
michael@0:     mBullet = nullptr;
michael@0:   }
michael@0: 
michael@0:   // XXXtodo: fire show/hide and reorder events. That's hard to make it
michael@0:   // right now because coalescence happens by DOM node.
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // HTMLLIAccessible: Accessible protected
michael@0: 
michael@0: void
michael@0: HTMLLIAccessible::CacheChildren()
michael@0: {
michael@0:   if (mBullet)
michael@0:     AppendChild(mBullet);
michael@0: 
michael@0:   // Cache children from subtree.
michael@0:   AccessibleWrap::CacheChildren();
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // HTMLListBulletAccessible
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: HTMLListBulletAccessible::
michael@0:   HTMLListBulletAccessible(nsIContent* aContent, DocAccessible* aDoc) :
michael@0:   LeafAccessible(aContent, aDoc)
michael@0: {
michael@0:   mStateFlags |= eSharedNode;
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // HTMLListBulletAccessible: Accessible
michael@0: 
michael@0: nsIFrame*
michael@0: HTMLListBulletAccessible::GetFrame() const
michael@0: {
michael@0:   nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
michael@0:   return blockFrame ? blockFrame->GetBullet() : nullptr;
michael@0: }
michael@0: 
michael@0: ENameValueFlag
michael@0: HTMLListBulletAccessible::Name(nsString &aName)
michael@0: {
michael@0:   aName.Truncate();
michael@0: 
michael@0:   // Native anonymous content, ARIA can't be used. Get list bullet text.
michael@0:   nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
michael@0:   if (blockFrame) {
michael@0:     blockFrame->GetBulletText(aName);
michael@0: 
michael@0:     // Append space otherwise bullets are jammed up against list text.
michael@0:     aName.Append(' ');
michael@0:   }
michael@0: 
michael@0:   return eNameOK;
michael@0: }
michael@0: 
michael@0: role
michael@0: HTMLListBulletAccessible::NativeRole()
michael@0: {
michael@0:   return roles::STATICTEXT;
michael@0: }
michael@0: 
michael@0: uint64_t
michael@0: HTMLListBulletAccessible::NativeState()
michael@0: {
michael@0:   return LeafAccessible::NativeState() | states::READONLY;
michael@0: }
michael@0: 
michael@0: void
michael@0: HTMLListBulletAccessible::AppendTextTo(nsAString& aText, uint32_t aStartOffset,
michael@0:                                        uint32_t aLength)
michael@0: {
michael@0:   nsAutoString bulletText;
michael@0:   nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
michael@0:   if (blockFrame)
michael@0:     blockFrame->GetBulletText(bulletText);
michael@0: 
michael@0:   aText.Append(Substring(bulletText, aStartOffset, aLength));
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: // HTMLListBulletAccessible: public
michael@0: 
michael@0: bool
michael@0: HTMLListBulletAccessible::IsInside() const
michael@0: {
michael@0:   nsBlockFrame* blockFrame = do_QueryFrame(mContent->GetPrimaryFrame());
michael@0:   return blockFrame ? blockFrame->HasInsideBullet() : false;
michael@0: }