nsresult
HTMLImageElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
nsImageLoadingContent::BindToTree(aDocument, aParent, aBindingParent,
aCompileEventHandlers);
if (HasAttr(kNameSpaceID_None, nsGkAtoms::src)) {
// FIXME: Bug 660963 it would be nice if we could just have
// ClearBrokenState update our state and do it fast...
ClearBrokenState();
RemoveStatesSilently(NS_EVENT_STATE_BROKEN);
// If loading is temporarily disabled, don't even launch MaybeLoadImage.
// Otherwise MaybeLoadImage may run later when someone has reenabled
// loading.
if (LoadingEnabled()) {
nsContentUtils::AddScriptRunner(
NS_NewRunnableMethod(this, &HTMLImageElement::MaybeLoadImage));
}
}
return rv;
}
void
nsSVGImageElement::MaybeLoadSVGImage()
{
if (HasAttr(kNameSpaceID_XLink, nsGkAtoms::href) &&
(NS_FAILED(LoadSVGImage(PR_FALSE, PR_TRUE)) ||
!LoadingEnabled())) {
CancelImageRequests(PR_TRUE);
}
}
nsresult
HTMLImageElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
nsImageLoadingContent::BindToTree(aDocument, aParent, aBindingParent,
aCompileEventHandlers);
if (aParent) {
UpdateFormOwner();
}
if (HaveSrcsetOrInPicture()) {
if (aDocument && !mInDocResponsiveContent) {
aDocument->AddResponsiveContent(this);
mInDocResponsiveContent = true;
}
bool forceLoadEvent = HTMLPictureElement::IsPictureEnabled() &&
aParent && aParent->IsHTMLElement(nsGkAtoms::picture);
QueueImageLoadTask(forceLoadEvent);
} else if (!InResponsiveMode() &&
HasAttr(kNameSpaceID_None, nsGkAtoms::src)) {
// We skip loading when our attributes were set from parser land,
// so trigger a aForce=false load now to check if things changed.
// This isn't necessary for responsive mode, since creating the
// image load task is asynchronous we don't need to take special
// care to avoid doing so when being filled by the parser.
// FIXME: Bug 660963 it would be nice if we could just have
// ClearBrokenState update our state and do it fast...
ClearBrokenState();
RemoveStatesSilently(NS_EVENT_STATE_BROKEN);
// We still act synchronously for the non-responsive case (Bug
// 1076583), but still need to delay if it is unsafe to run
// script.
// If loading is temporarily disabled, don't even launch MaybeLoadImage.
// Otherwise MaybeLoadImage may run later when someone has reenabled
// loading.
if (LoadingEnabled()) {
nsContentUtils::AddScriptRunner(
NS_NewRunnableMethod(this, &HTMLImageElement::MaybeLoadImage));
}
}
return rv;
}
void
HTMLImageElement::MaybeLoadImage()
{
// Our base URI may have changed; claim that our URI changed, and the
// nsImageLoadingContent will decide whether a new image load is warranted.
// Note, check LoadingEnabled() after LoadImage call.
nsAutoString uri;
if (GetAttr(kNameSpaceID_None, nsGkAtoms::src, uri) &&
(NS_FAILED(LoadImage(uri, false, true)) ||
!LoadingEnabled())) {
CancelImageRequests(true);
}
}
nsresult
HTMLImageElement::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
nsIContent* aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument, aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
nsImageLoadingContent::BindToTree(aDocument, aParent, aBindingParent,
aCompileEventHandlers);
if (aParent) {
UpdateFormOwner();
}
bool haveSrcset = IsSrcsetEnabled() &&
HasAttr(kNameSpaceID_None, nsGkAtoms::srcset);
if (haveSrcset || HasAttr(kNameSpaceID_None, nsGkAtoms::src)) {
// FIXME: Bug 660963 it would be nice if we could just have
// ClearBrokenState update our state and do it fast...
ClearBrokenState();
RemoveStatesSilently(NS_EVENT_STATE_BROKEN);
// We don't handle responsive changes when not bound to a tree, update them
// now if necessary
if (haveSrcset) {
nsAutoString srcset;
GetAttr(kNameSpaceID_None, nsGkAtoms::srcset, srcset);
UpdateSourceSet(srcset);
if (mResponsiveSelector) {
nsAutoString src;
GetAttr(kNameSpaceID_None, nsGkAtoms::src, src);
mResponsiveSelector->SetDefaultSource(src);
}
}
// If loading is temporarily disabled, don't even launch MaybeLoadImage.
// Otherwise MaybeLoadImage may run later when someone has reenabled
// loading.
if (LoadingEnabled()) {
nsContentUtils::AddScriptRunner(
NS_NewRunnableMethod(this, &HTMLImageElement::MaybeLoadImage));
}
}
return rv;
}
void
HTMLImageElement::QueueImageLoadTask(bool aAlwaysLoad)
{
// If loading is temporarily disabled, we don't want to queue tasks
// that may then run when loading is re-enabled.
if (!LoadingEnabled() || !this->OwnerDoc()->IsCurrentActiveDocument()) {
return;
}
nsCOMPtr<nsIRunnable> task = new ImageLoadTask(this, aAlwaysLoad);
// The task checks this to determine if it was the last
// queued event, and so earlier tasks are implicitly canceled.
mPendingImageLoadTask = task;
nsContentUtils::RunInStableState(task.forget());
}
void
HTMLImageElement::MaybeLoadImage()
{
// Our base URI may have changed, or we may have had responsive parameters
// change while not bound to the tree. Re-parse src/srcset and call LoadImage,
// which is a no-op if it resolves to the same effective URI without aForce.
// Note, check LoadingEnabled() after LoadImage call.
LoadSelectedImage(false, true, false);
if (!LoadingEnabled()) {
CancelImageRequests(true);
}
}
void
HTMLImageElement::QueueImageLoadTask()
{
// If loading is temporarily disabled, we don't want to queue tasks
// that may then run when loading is re-enabled.
if (!LoadingEnabled() || !this->OwnerDoc()->IsCurrentActiveDocument()) {
return;
}
// The task checks this to determine if it was the last queued event, so this
// implicitly cancels earlier tasks
mPendingImageLoadTask = new ImageLoadTask(this);
nsCOMPtr<nsIAppShell> appShell = do_GetService(kAppShellCID);
if (appShell) {
appShell->RunInStableState(mPendingImageLoadTask);
} else {
MOZ_ASSERT(false, "expect appshell for HTMLImageElement");
}
}
void
HTMLImageElement::QueueImageLoadTask(bool aAlwaysLoad)
{
// If loading is temporarily disabled, we don't want to queue tasks
// that may then run when loading is re-enabled.
if (!LoadingEnabled() || !this->OwnerDoc()->IsCurrentActiveDocument()) {
return;
}
// Ensure that we don't overwrite a previous load request that requires
// a complete load to occur.
bool alwaysLoad = aAlwaysLoad;
if (mPendingImageLoadTask) {
alwaysLoad = alwaysLoad || mPendingImageLoadTask->AlwaysLoad();
}
RefPtr<ImageLoadTask> task = new ImageLoadTask(this, alwaysLoad);
// The task checks this to determine if it was the last
// queued event, and so earlier tasks are implicitly canceled.
mPendingImageLoadTask = task;
nsContentUtils::RunInStableState(task.forget());
}
