mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
234 lines
8.6 KiB
C++
234 lines
8.6 KiB
C++
/* 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 "TabParent.h"
|
|
|
|
// TabParent.h transitively includes <windows.h>, which does
|
|
// #define CreateEvent CreateEventW
|
|
// That messes up our call to nsEventDispatcher::CreateEvent below.
|
|
|
|
#ifdef CreateEvent
|
|
#undef CreateEvent
|
|
#endif
|
|
|
|
#include "BrowserElementParent.h"
|
|
#include "nsHTMLIFrameElement.h"
|
|
#include "nsOpenWindowEventDetail.h"
|
|
#include "nsEventDispatcher.h"
|
|
#include "nsIDOMCustomEvent.h"
|
|
#include "nsIInterfaceRequestorUtils.h"
|
|
#include "nsVariant.h"
|
|
|
|
using mozilla::dom::Element;
|
|
using mozilla::dom::TabParent;
|
|
|
|
namespace {
|
|
|
|
/**
|
|
* Create an <iframe mozbrowser> owned by the same document as
|
|
* aOpenerFrameElement.
|
|
*/
|
|
already_AddRefed<nsHTMLIFrameElement>
|
|
CreateIframe(Element* aOpenerFrameElement, const nsAString& aName, bool aRemote)
|
|
{
|
|
nsNodeInfoManager *nodeInfoManager =
|
|
aOpenerFrameElement->OwnerDoc()->NodeInfoManager();
|
|
|
|
nsCOMPtr<nsINodeInfo> nodeInfo =
|
|
nodeInfoManager->GetNodeInfo(nsGkAtoms::iframe,
|
|
/* aPrefix = */ nullptr,
|
|
kNameSpaceID_XHTML,
|
|
nsIDOMNode::ELEMENT_NODE);
|
|
|
|
nsRefPtr<nsHTMLIFrameElement> popupFrameElement =
|
|
static_cast<nsHTMLIFrameElement*>(
|
|
NS_NewHTMLIFrameElement(nodeInfo.forget(), mozilla::dom::NOT_FROM_PARSER));
|
|
|
|
popupFrameElement->SetMozbrowser(true);
|
|
|
|
// Copy the opener frame's mozapp attribute to the popup frame.
|
|
if (aOpenerFrameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::mozapp)) {
|
|
nsAutoString mozapp;
|
|
aOpenerFrameElement->GetAttr(kNameSpaceID_None, nsGkAtoms::mozapp, mozapp);
|
|
popupFrameElement->SetAttr(kNameSpaceID_None, nsGkAtoms::mozapp,
|
|
mozapp, /* aNotify = */ false);
|
|
}
|
|
|
|
// Copy the window name onto the iframe.
|
|
popupFrameElement->SetAttr(kNameSpaceID_None, nsGkAtoms::name,
|
|
aName, /* aNotify = */ false);
|
|
|
|
// Indicate whether the iframe is should be remote.
|
|
popupFrameElement->SetAttr(kNameSpaceID_None, nsGkAtoms::Remote,
|
|
aRemote ? NS_LITERAL_STRING("true") :
|
|
NS_LITERAL_STRING("false"),
|
|
/* aNotify = */ false);
|
|
|
|
return popupFrameElement.forget();
|
|
}
|
|
|
|
/**
|
|
* Dispatch a mozbrowseropenwindow event to the given opener frame element.
|
|
* The "popup iframe" (event.detail.frameElement) will be |aPopupFrameElement|.
|
|
*
|
|
* Returns true iff there were no unexpected failures and the window.open call
|
|
* was accepted by the embedder.
|
|
*/
|
|
bool
|
|
DispatchOpenWindowEvent(Element* aOpenerFrameElement,
|
|
Element* aPopupFrameElement,
|
|
const nsAString& aURL,
|
|
const nsAString& aName,
|
|
const nsAString& aFeatures)
|
|
{
|
|
// Dispatch a CustomEvent at aOpenerFrameElement with a detail object
|
|
// (nsIOpenWindowEventDetail) containing aPopupFrameElement, aURL, aName, and
|
|
// aFeatures.
|
|
|
|
// Create the event's detail object.
|
|
nsRefPtr<nsOpenWindowEventDetail> detail =
|
|
new nsOpenWindowEventDetail(aURL, aName, aFeatures,
|
|
aPopupFrameElement->AsDOMNode());
|
|
nsCOMPtr<nsIWritableVariant> detailVariant = new nsVariant();
|
|
nsresult rv = detailVariant->SetAsISupports(detail);
|
|
NS_ENSURE_SUCCESS(rv, false);
|
|
|
|
// Create the CustomEvent.
|
|
nsIPresShell *shell = aOpenerFrameElement->OwnerDoc()->GetShell();
|
|
nsRefPtr<nsPresContext> presContext;
|
|
if (shell) {
|
|
presContext = shell->GetPresContext();
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMEvent> domEvent;
|
|
nsEventDispatcher::CreateEvent(presContext, nullptr,
|
|
NS_LITERAL_STRING("customevent"),
|
|
getter_AddRefs(domEvent));
|
|
NS_ENSURE_TRUE(domEvent, false);
|
|
|
|
nsCOMPtr<nsIDOMCustomEvent> customEvent = do_QueryInterface(domEvent);
|
|
NS_ENSURE_TRUE(customEvent, false);
|
|
customEvent->InitCustomEvent(NS_LITERAL_STRING("mozbrowseropenwindow"),
|
|
/* bubbles = */ true,
|
|
/* cancelable = */ false,
|
|
detailVariant);
|
|
customEvent->SetTrusted(true);
|
|
|
|
// Dispatch the event.
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
rv = nsEventDispatcher::DispatchDOMEvent(aOpenerFrameElement, nullptr,
|
|
domEvent, presContext, &status);
|
|
NS_ENSURE_SUCCESS(rv, false);
|
|
|
|
// If the iframe is not in some document's DOM at this point, the embedder
|
|
// has "blocked" the popup.
|
|
return aPopupFrameElement->IsInDoc();
|
|
}
|
|
|
|
} // anonymous namespace
|
|
|
|
namespace mozilla {
|
|
|
|
/*static*/ bool
|
|
BrowserElementParent::OpenWindowOOP(mozilla::dom::TabParent* aOpenerTabParent,
|
|
mozilla::dom::TabParent* aPopupTabParent,
|
|
const nsAString& aURL,
|
|
const nsAString& aName,
|
|
const nsAString& aFeatures)
|
|
{
|
|
// Create an iframe owned by the same document which owns openerFrameElement.
|
|
nsCOMPtr<Element> openerFrameElement =
|
|
do_QueryInterface(aOpenerTabParent->GetOwnerElement());
|
|
NS_ENSURE_TRUE(openerFrameElement, false);
|
|
nsRefPtr<nsHTMLIFrameElement> popupFrameElement =
|
|
CreateIframe(openerFrameElement, aName, /* aRemote = */ true);
|
|
|
|
// Normally an <iframe> element will try to create a frameLoader when the
|
|
// page touches iframe.contentWindow or sets iframe.src.
|
|
//
|
|
// But in our case, we want to delay the creation of the frameLoader until
|
|
// we've verified that the popup has gone through successfully. If the popup
|
|
// is "blocked" by the embedder, we don't want to load the popup's url.
|
|
//
|
|
// Therefore we call DisallowCreateFrameLoader() on the element and call
|
|
// AllowCreateFrameLoader() only after we've verified that the popup was
|
|
// allowed.
|
|
popupFrameElement->DisallowCreateFrameLoader();
|
|
|
|
bool dispatchSucceeded =
|
|
DispatchOpenWindowEvent(openerFrameElement, popupFrameElement,
|
|
aURL, aName, aFeatures);
|
|
if (!dispatchSucceeded) {
|
|
return false;
|
|
}
|
|
|
|
// The popup was not blocked, so hook up the frame element and the popup tab
|
|
// parent, and return success.
|
|
aPopupTabParent->SetOwnerElement(popupFrameElement);
|
|
popupFrameElement->AllowCreateFrameLoader();
|
|
popupFrameElement->CreateRemoteFrameLoader(aPopupTabParent);
|
|
|
|
return true;
|
|
}
|
|
|
|
/* static */ bool
|
|
BrowserElementParent::OpenWindowInProcess(nsIDOMWindow* aOpenerWindow,
|
|
nsIURI* aURI,
|
|
const nsAString& aName,
|
|
const nsACString& aFeatures,
|
|
nsIDOMWindow** aReturnWindow)
|
|
{
|
|
*aReturnWindow = NULL;
|
|
|
|
// If we call window.open from an <iframe> inside an <iframe mozbrowser>,
|
|
// it's as though the top-level document inside the <iframe mozbrowser>
|
|
// called window.open. (Indeed, in the OOP case, the inner <iframe> lives
|
|
// out-of-process, so we couldn't touch it if we tried.)
|
|
//
|
|
// GetScriptableTop gets us the <iframe mozbrowser>'s window; we'll use its
|
|
// frame element, rather than aOpenerWindow's frame element, as our "opener
|
|
// frame element" below.
|
|
nsCOMPtr<nsIDOMWindow> topWindow;
|
|
aOpenerWindow->GetScriptableTop(getter_AddRefs(topWindow));
|
|
|
|
nsCOMPtr<nsIDOMElement> openerFrameDOMElement;
|
|
topWindow->GetFrameElement(getter_AddRefs(openerFrameDOMElement));
|
|
NS_ENSURE_TRUE(openerFrameDOMElement, false);
|
|
|
|
nsCOMPtr<Element> openerFrameElement =
|
|
do_QueryInterface(openerFrameDOMElement);
|
|
|
|
nsRefPtr<nsHTMLIFrameElement> popupFrameElement =
|
|
CreateIframe(openerFrameElement, aName, /* aRemote = */ false);
|
|
NS_ENSURE_TRUE(popupFrameElement, false);
|
|
|
|
nsAutoCString spec;
|
|
if (aURI) {
|
|
aURI->GetSpec(spec);
|
|
}
|
|
bool dispatchSucceeded =
|
|
DispatchOpenWindowEvent(openerFrameElement, popupFrameElement,
|
|
NS_ConvertUTF8toUTF16(spec),
|
|
aName,
|
|
NS_ConvertUTF8toUTF16(aFeatures));
|
|
if (!dispatchSucceeded) {
|
|
return false;
|
|
}
|
|
|
|
// Return popupFrameElement's window.
|
|
nsCOMPtr<nsIFrameLoader> frameLoader;
|
|
popupFrameElement->GetFrameLoader(getter_AddRefs(frameLoader));
|
|
NS_ENSURE_TRUE(frameLoader, false);
|
|
|
|
nsCOMPtr<nsIDocShell> docshell;
|
|
frameLoader->GetDocShell(getter_AddRefs(docshell));
|
|
NS_ENSURE_TRUE(docshell, false);
|
|
|
|
nsCOMPtr<nsIDOMWindow> window = do_GetInterface(docshell);
|
|
window.forget(aReturnWindow);
|
|
return !!*aReturnWindow;
|
|
}
|
|
|
|
} // namespace mozilla
|