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/* 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 "nsSessionStoreUtils.h"
#include "mozilla/dom/Event.h"
#include "nsPIDOMWindow.h"
#include "nsIDocShell.h"
using namespace mozilla::dom;
namespace {
class DynamicFrameEventFilter final : public nsIDOMEventListener {
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS(DynamicFrameEventFilter)
explicit DynamicFrameEventFilter(nsIDOMEventListener* aListener)
: mListener(aListener) {}
NS_IMETHODIMP HandleEvent(nsIDOMEvent* aEvent) override {
if (mListener && TargetInNonDynamicDocShell(aEvent)) {
mListener->HandleEvent(aEvent);
}
return NS_OK;
}
private:
~DynamicFrameEventFilter() {}
bool TargetInNonDynamicDocShell(nsIDOMEvent* aEvent) {
EventTarget* target = aEvent->InternalDOMEvent()->GetTarget();
if (!target) {
return false;
}
nsPIDOMWindowOuter* outer = target->GetOwnerGlobalForBindings();
if (!outer) {
return false;
}
nsIDocShell* docShell = outer->GetDocShell();
if (!docShell) {
return false;
}
bool isDynamic = false;
nsresult rv = docShell->GetCreatedDynamically(&isDynamic);
return NS_SUCCEEDED(rv) && !isDynamic;
}
nsCOMPtr<nsIDOMEventListener> mListener;
};
NS_IMPL_CYCLE_COLLECTION(DynamicFrameEventFilter, mListener)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DynamicFrameEventFilter)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_ENTRY(nsIDOMEventListener)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(DynamicFrameEventFilter)
NS_IMPL_CYCLE_COLLECTING_RELEASE(DynamicFrameEventFilter)
} // anonymous namespace
NS_IMPL_ISUPPORTS(nsSessionStoreUtils, nsISessionStoreUtils)
NS_IMETHODIMP
nsSessionStoreUtils::ForEachNonDynamicChildFrame(
mozIDOMWindowProxy* aWindow, nsISessionStoreUtilsFrameCallback* aCallback) {
NS_ENSURE_TRUE(aWindow, NS_ERROR_INVALID_ARG);
nsCOMPtr<nsPIDOMWindowOuter> outer = nsPIDOMWindowOuter::From(aWindow);
NS_ENSURE_TRUE(outer, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShell> docShell = outer->GetDocShell();
NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);
int32_t length;
nsresult rv = docShell->GetChildCount(&length);
NS_ENSURE_SUCCESS(rv, rv);
for (int32_t i = 0; i < length; ++i) {
nsCOMPtr<nsIDocShellTreeItem> item;
docShell->GetChildAt(i, getter_AddRefs(item));
NS_ENSURE_TRUE(item, NS_ERROR_FAILURE);
nsCOMPtr<nsIDocShell> childDocShell(do_QueryInterface(item));
NS_ENSURE_TRUE(childDocShell, NS_ERROR_FAILURE);
bool isDynamic = false;
nsresult rv = childDocShell->GetCreatedDynamically(&isDynamic);
if (NS_SUCCEEDED(rv) && isDynamic) {
continue;
}
int32_t childOffset = 0;
rv = childDocShell->GetChildOffset(&childOffset);
NS_ENSURE_SUCCESS(rv, rv);
aCallback->HandleFrame(item->GetWindow(), childOffset);
}
return NS_OK;
}
NS_IMETHODIMP
nsSessionStoreUtils::CreateDynamicFrameEventFilter(
nsIDOMEventListener* aListener, nsIDOMEventListener** aResult) {
NS_ENSURE_TRUE(aListener, NS_ERROR_INVALID_ARG);
nsCOMPtr<nsIDOMEventListener> filter(new DynamicFrameEventFilter(aListener));
filter.forget(aResult);
return NS_OK;
}
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