NS_IMETHODIMP nsImageLoadingContent::ForceReload()
{
NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIURI> currentURI;
GetCurrentURI(getter_AddRefs(currentURI));
if (!currentURI) {
return NS_ERROR_NOT_AVAILABLE;
}
return LoadImage(currentURI, PR_TRUE, PR_TRUE, nsnull, nsIRequest::VALIDATE_ALWAYS);
}
nsresult
HTMLImageElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue, bool aNotify)
{
if (aNameSpaceID == kNameSpaceID_None && mForm &&
(aName == nsGkAtoms::name || aName == nsGkAtoms::id) &&
aValue && !aValue->IsEmptyString()) {
// add the image to the hashtable as needed
NS_ABORT_IF_FALSE(aValue->Type() == nsAttrValue::eAtom,
"Expected atom value for name/id");
mForm->AddImageElementToTable(this,
nsDependentAtomString(aValue->GetAtomValue()));
}
// Handle src/srcset/crossorigin updates. If aNotify is false, we are coming
// from the parser or some such place; we'll get bound after all the
// attributes have been set, so we'll do the image load from BindToTree.
if (aName == nsGkAtoms::src &&
aNameSpaceID == kNameSpaceID_None) {
// SetAttr handles setting src in the non-responsive case, so only handle it
// for responsive mode or unsetting
if (!aValue) {
CancelImageRequests(aNotify);
} else if (mResponsiveSelector) {
mResponsiveSelector->SetDefaultSource(aValue ? aValue->GetStringValue()
: EmptyString());
LoadSelectedImage(false, aNotify);
}
} else if (aName == nsGkAtoms::srcset &&
aNameSpaceID == kNameSpaceID_None &&
aNotify &&
AsContent()->IsInDoc() &&
IsSrcsetEnabled()) {
// We currently don't handle responsive mode until BindToTree
UpdateSourceSet(aValue->GetStringValue());
LoadSelectedImage(false, aNotify);
} else if (aName == nsGkAtoms::crossorigin &&
aNameSpaceID == kNameSpaceID_None &&
aNotify) {
// We want aForce == true in this LoadImage call, because we want to force
// a new load of the image with the new cross origin policy.
nsCOMPtr<nsIURI> currentURI;
if (NS_SUCCEEDED(GetCurrentURI(getter_AddRefs(currentURI))) && currentURI) {
LoadImage(currentURI, true, aNotify);
}
}
return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName,
aValue, aNotify);
}
NS_IMETHODIMP
nsSHistory::Reload(PRUint32 aReloadFlags)
{
nsresult rv;
nsDocShellInfoLoadType loadType;
if (aReloadFlags & nsIWebNavigation::LOAD_FLAGS_BYPASS_PROXY &&
aReloadFlags & nsIWebNavigation::LOAD_FLAGS_BYPASS_CACHE)
{
loadType = nsIDocShellLoadInfo::loadReloadBypassProxyAndCache;
}
else if (aReloadFlags & nsIWebNavigation::LOAD_FLAGS_BYPASS_PROXY)
{
loadType = nsIDocShellLoadInfo::loadReloadBypassProxy;
}
else if (aReloadFlags & nsIWebNavigation::LOAD_FLAGS_BYPASS_CACHE)
{
loadType = nsIDocShellLoadInfo::loadReloadBypassCache;
}
else if (aReloadFlags & nsIWebNavigation::LOAD_FLAGS_CHARSET_CHANGE)
{
loadType = nsIDocShellLoadInfo::loadReloadCharsetChange;
}
else
{
loadType = nsIDocShellLoadInfo::loadReloadNormal;
}
// Notify listeners
PRBool canNavigate = PR_TRUE;
if (mListener) {
nsCOMPtr<nsISHistoryListener> listener(do_QueryReferent(mListener));
// We are reloading. Send Reload notifications.
// nsDocShellLoadFlagType is not public, where as nsIWebNavigation
// is public. So send the reload notifications with the
// nsIWebNavigation flags.
if (listener) {
nsCOMPtr<nsIURI> currentURI;
rv = GetCurrentURI(getter_AddRefs(currentURI));
listener->OnHistoryReload(currentURI, aReloadFlags, &canNavigate);
}
}
if (!canNavigate)
return NS_OK;
return LoadEntry(mIndex, loadType, HIST_CMD_RELOAD);
}
nsresult
nsImageLoadingContent::LoadImage(nsIURI* aNewURI,
PRBool aForce,
PRBool aNotify,
nsIDocument* aDocument,
nsLoadFlags aLoadFlags)
{
if (!mLoadingEnabled) {
// XXX Why fire an error here? seems like the callers to SetLoadingEnabled
// don't want/need it.
FireEvent(NS_LITERAL_STRING("error"));
return NS_OK;
}
NS_ASSERTION(!aDocument || aDocument == GetOurDocument(),
"Bogus document passed in");
// First, get a document (needed for security checks and the like)
if (!aDocument) {
aDocument = GetOurDocument();
if (!aDocument) {
// No reason to bother, I think...
return NS_OK;
}
}
// URI equality check.
//
// We skip the equality check if our current image was blocked, since in that
// case we really do want to try loading again.
if (!aForce && NS_CP_ACCEPTED(mImageBlockingStatus)) {
nsCOMPtr<nsIURI> currentURI;
GetCurrentURI(getter_AddRefs(currentURI));
PRBool equal;
if (currentURI &&
NS_SUCCEEDED(currentURI->Equals(aNewURI, &equal)) &&
equal) {
// Nothing to do here.
return NS_OK;
}
}
// From this point on, our image state could change. Watch it.
AutoStateChanger changer(this, aNotify);
// Sanity check.
//
// We use the principal of aDocument to avoid having to QI |this| an extra
// time. It should always be the same as the principal of this node.
#ifdef DEBUG
nsCOMPtr<nsIContent> thisContent = do_QueryInterface(this);
NS_ABORT_IF_FALSE(thisContent &&
thisContent->NodePrincipal() == aDocument->NodePrincipal(),
"Principal mismatch?");
#endif
// Are we blocked?
PRInt16 cpDecision = nsIContentPolicy::REJECT_REQUEST;
nsContentUtils::CanLoadImage(aNewURI, this, aDocument,
aDocument->NodePrincipal(), &cpDecision);
if (!NS_CP_ACCEPTED(cpDecision)) {
FireEvent(NS_LITERAL_STRING("error"));
SetBlockedRequest(aNewURI, cpDecision);
return NS_OK;
}
// Not blocked. Do the load.
nsCOMPtr<imgIRequest>& req = PrepareNextRequest();
nsresult rv;
rv = nsContentUtils::LoadImage(aNewURI, aDocument,
aDocument->NodePrincipal(),
aDocument->GetDocumentURI(),
this, aLoadFlags,
getter_AddRefs(req));
if (NS_SUCCEEDED(rv)) {
TrackImage(req);
} else {
// If we don't have a current URI, we might as well store this URI so people
// know what we tried (and failed) to load.
if (!mCurrentRequest)
mCurrentURI = aNewURI;
FireEvent(NS_LITERAL_STRING("error"));
return NS_OK;
}
return NS_OK;
}
