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Bug 106710. Expose anonymous content via accessibility API's. r=jgaunt, sr=waterson

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git-svn-id: svn://10.0.0.236/trunk@106430 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
aaronl%netscape.com
2001-10-26 23:47:52 +00:00
parent 457115228d
commit dbf9d79500
20 changed files with 903 additions and 1307 deletions
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133
mozilla/accessible/src/html/nsHTMLIFrameRootAccessible.cpp
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@@ -40,16 +40,9 @@
#include "nsCOMPtr.h"
#include "nsIDocument.h"
#include "nsIPresShell.h"
#include "nsIPresContext.h"
#include "nsIContent.h"
#include "nsIFrame.h"
#include "nsIDocShell.h"
#include "nsIWebShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIXULDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMDocumentType.h"
#include "nsINameSpaceManager.h"
#include "nsReadableUtils.h"
NS_INTERFACE_MAP_BEGIN(nsHTMLIFrameRootAccessible)
@@ -162,9 +155,8 @@ NS_IMETHODIMP nsHTMLIFrameAccessible::GetDocument(nsIDocument **doc)
// construction
//-----------------------------------------------------
nsHTMLIFrameRootAccessible::nsHTMLIFrameRootAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell):
nsRootAccessible(aShell)
mOuterNode(aNode), nsRootAccessible(aShell)
{
mRealDOMNode = aNode;
}
//-----------------------------------------------------
@@ -174,113 +166,42 @@ nsHTMLIFrameRootAccessible::~nsHTMLIFrameRootAccessible()
{
}
nsHTMLIFrameRootAccessible::Init()
{
if (!mOuterAccessible) {
nsCOMPtr<nsIDOMDocument> domDoc;
mOuterNode->GetOwnerDocument(getter_AddRefs(domDoc));
nsCOMPtr<nsIDocument> doc(do_QueryInterface(domDoc));
if (doc) {
nsCOMPtr<nsIPresShell> parentShell;
doc->GetShellAt(0, getter_AddRefs(parentShell));
if (parentShell) {
nsCOMPtr<nsIContent> content(do_QueryInterface(mOuterNode));
nsIFrame* frame = nsnull;
parentShell->GetPrimaryFrameFor(content, &frame);
NS_ASSERTION(frame, "No outer frame.");
frame->GetAccessible(getter_AddRefs(mOuterAccessible));
NS_ASSERTION(mOuterAccessible, "Something's wrong - there's no accessible for the outer parent of this frame.");
}
}
}
}
/* readonly attribute nsIAccessible accParent; */
NS_IMETHODIMP nsHTMLIFrameRootAccessible::GetAccParent(nsIAccessible * *_retval)
{
nsCOMPtr<nsIAccessible> accessible;
if (NS_SUCCEEDED(GetHTMLIFrameAccessible(getter_AddRefs(accessible))))
return accessible->GetAccParent(_retval);
*_retval = nsnull;
return NS_OK;
Init();
return mOuterAccessible->GetAccParent(_retval);
}
/* nsIAccessible getAccNextSibling (); */
NS_IMETHODIMP nsHTMLIFrameRootAccessible::GetAccNextSibling(nsIAccessible **_retval)
{
nsCOMPtr<nsIAccessible> accessible;
if (NS_SUCCEEDED(GetHTMLIFrameAccessible(getter_AddRefs(accessible))))
return accessible->GetAccNextSibling(_retval);
*_retval = nsnull;
return NS_ERROR_FAILURE;
Init();
return mOuterAccessible->GetAccNextSibling(_retval);
}
/* nsIAccessible getAccPreviousSibling (); */
NS_IMETHODIMP nsHTMLIFrameRootAccessible::GetAccPreviousSibling(nsIAccessible **_retval)
{
nsCOMPtr<nsIAccessible> accessible;
if (NS_SUCCEEDED(GetHTMLIFrameAccessible(getter_AddRefs(accessible))))
return accessible->GetAccPreviousSibling(_retval);
*_retval = nsnull;
return NS_ERROR_FAILURE;
Init();
return mOuterAccessible->GetAccPreviousSibling(_retval);
}
NS_IMETHODIMP nsHTMLIFrameRootAccessible::GetHTMLIFrameAccessible(nsIAccessible** aAcc)
{
// Start by finding our PresShell and from that
// we get our nsIDocShell in order to walk the DocShell tree
nsCOMPtr<nsIPresShell> presShell(do_QueryReferent(mPresShell));
if (!presShell) {
*aAcc = nsnull;
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDocShell> docShell;
if (NS_SUCCEEDED(GetDocShellFromPS(presShell, getter_AddRefs(docShell)))) {
// Now that we have the DocShell QI
// it to a tree item to find it's parent
nsCOMPtr<nsIDocShellTreeItem> item(do_QueryInterface(docShell));
if (item) {
nsCOMPtr<nsIDocShellTreeItem> itemParent;
item->GetParent(getter_AddRefs(itemParent));
// QI to get the WebShell for the parent document
nsCOMPtr<nsIDocShell> parentDocShell(do_QueryInterface(itemParent));
if (parentDocShell) {
// Get the PresShell/Content and
// Root Content Node of the parent document
nsCOMPtr<nsIPresShell> parentPresShell;
nsCOMPtr<nsIPresContext> parentPresContext;
nsCOMPtr<nsIContent> rootContent;
if (NS_SUCCEEDED(GetDocShellObjects(parentDocShell,
getter_AddRefs(parentPresShell),
getter_AddRefs(parentPresContext),
getter_AddRefs(rootContent)))) {
// QI the DocShell (of this sub-doc) to a webshell
nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(docShell));
if (webShell && parentPresShell && parentPresContext && rootContent) {
// Now, find the Content in the parent document
// that represents this sub-doc,
// we do that matching webshells
nsCOMPtr<nsIContent> content;
if (FindContentForWebShell(parentPresShell,
rootContent,
webShell,
getter_AddRefs(content))) {
// OK, we found the content node in the parent doc
// that corresponds to this sub-doc
// Get the frame for that content
nsCOMPtr<nsIWeakReference> wr = do_GetWeakReference(parentPresShell);
nsIFrame* frame = nsnull;
parentPresShell->GetPrimaryFrameFor(content, &frame);
#ifdef NS_DEBUG_X
printf("** Found: Con:%p Fr:%p", content, frame);
char * name;
if (GetNameForFrame(frame, &name)) {
printf(" Name:[%s]", name);
nsMemory::Free(name);
}
printf("\n");
#endif
nsCOMPtr<nsIDOMNode> node(do_QueryInterface(content));
nsCOMPtr<nsIAccessible> acc(do_QueryInterface(frame));
*aAcc = acc;
NS_IF_ADDREF(*aAcc);
return NS_OK;
}
}
}
}
}
}
return NS_ERROR_FAILURE;
}