Add m-esr52 at 52.6.0

1 files changed, 317 insertions, 0 deletions

diff --git a/dom/browser-element/BrowserElementParent.cpp b/dom/browser-element/BrowserElementParent.cpp
new file mode 100644
index 000000000..fda9348fd
--- /dev/null
+++ b/dom/browser-element/BrowserElementParent.cpp
@@ -0,0 +1,317 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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 EventDispatcher::CreateEvent below.
+
+#ifdef CreateEvent
+#undef CreateEvent
+#endif
+
+#include "BrowserElementParent.h"
+#include "BrowserElementAudioChannel.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/dom/HTMLIFrameElement.h"
+#include "mozilla/dom/ToJSValue.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsVariant.h"
+#include "mozilla/dom/BrowserElementDictionariesBinding.h"
+#include "mozilla/dom/CustomEvent.h"
+#include "mozilla/layout/RenderFrameParent.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+using namespace mozilla::layers;
+using namespace mozilla::layout;
+
+namespace {
+
+using mozilla::BrowserElementParent;
+/**
+ * Create an <iframe mozbrowser> owned by the same document as
+ * aOpenerFrameElement.
+ */
+already_AddRefed<HTMLIFrameElement>
+CreateIframe(Element* aOpenerFrameElement, const nsAString& aName, bool aRemote)
+{
+  nsNodeInfoManager *nodeInfoManager =
+    aOpenerFrameElement->OwnerDoc()->NodeInfoManager();
+
+  RefPtr<NodeInfo> nodeInfo =
+    nodeInfoManager->GetNodeInfo(nsGkAtoms::iframe,
+                                 /* aPrefix = */ nullptr,
+                                 kNameSpaceID_XHTML,
+                                 nsIDOMNode::ELEMENT_NODE);
+
+  RefPtr<HTMLIFrameElement> popupFrameElement =
+    static_cast<HTMLIFrameElement*>(
+      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 opener frame's parentApp attribute to the popup frame.
+  if (aOpenerFrameElement->HasAttr(kNameSpaceID_None, nsGkAtoms::parentapp)) {
+    nsAutoString parentApp;
+    aOpenerFrameElement->GetAttr(kNameSpaceID_None, nsGkAtoms::parentapp,
+                                 parentApp);
+    popupFrameElement->SetAttr(kNameSpaceID_None, nsGkAtoms::parentapp,
+                               parentApp, /* 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);
+
+  // Copy the opener frame's mozprivatebrowsing attribute to the popup frame.
+  nsAutoString mozprivatebrowsing;
+  if (aOpenerFrameElement->GetAttr(kNameSpaceID_None, nsGkAtoms::mozprivatebrowsing,
+                                   mozprivatebrowsing)) {
+    popupFrameElement->SetAttr(kNameSpaceID_None, nsGkAtoms::mozprivatebrowsing,
+                               mozprivatebrowsing, /* aNotify = */ false);
+  }
+
+  return popupFrameElement.forget();
+}
+
+bool
+DispatchCustomDOMEvent(Element* aFrameElement, const nsAString& aEventName,
+                       JSContext* cx, JS::Handle<JS::Value> aDetailValue,
+                       nsEventStatus *aStatus)
+{
+  NS_ENSURE_TRUE(aFrameElement, false);
+  nsIPresShell *shell = aFrameElement->OwnerDoc()->GetShell();
+  RefPtr<nsPresContext> presContext;
+  if (shell) {
+    presContext = shell->GetPresContext();
+  }
+
+  RefPtr<CustomEvent> event =
+    NS_NewDOMCustomEvent(aFrameElement, presContext, nullptr);
+
+  ErrorResult res;
+  event->InitCustomEvent(cx,
+                         aEventName,
+                         /* aCanBubble = */ true,
+                         /* aCancelable = */ true,
+                         aDetailValue,
+                         res);
+  if (res.Failed()) {
+    return false;
+  }
+  event->SetTrusted(true);
+  // Dispatch the event.
+  // We don't initialize aStatus here, as our callers have already done so.
+  nsresult rv =
+    EventDispatcher::DispatchDOMEvent(aFrameElement, nullptr, event,
+                                      presContext, aStatus);
+  return NS_SUCCEEDED(rv);
+}
+
+} // namespace
+
+namespace mozilla {
+
+/**
+ * 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.
+ */
+/*static*/
+BrowserElementParent::OpenWindowResult
+BrowserElementParent::DispatchOpenWindowEvent(Element* aOpenerFrameElement,
+                        Element* aPopupFrameElement,
+                        const nsAString& aURL,
+                        const nsAString& aName,
+                        const nsAString& aFeatures)
+{
+  // Dispatch a CustomEvent at aOpenerFrameElement with a detail object
+  // (OpenWindowEventDetail) containing aPopupFrameElement, aURL, aName, and
+  // aFeatures.
+
+  // Create the event's detail object.
+  OpenWindowEventDetail detail;
+  if (aURL.IsEmpty()) {
+    // URL should never be empty. Assign about:blank as default.
+    detail.mUrl = NS_LITERAL_STRING("about:blank");
+  } else {
+    detail.mUrl = aURL;
+  }
+  detail.mName = aName;
+  detail.mFeatures = aFeatures;
+  detail.mFrameElement = aPopupFrameElement;
+
+  AutoJSContext cx;
+  JS::Rooted<JS::Value> val(cx);
+
+  nsIGlobalObject* sgo = aPopupFrameElement->OwnerDoc()->GetScopeObject();
+  if (!sgo) {
+    return BrowserElementParent::OPEN_WINDOW_IGNORED;
+  }
+
+  JS::Rooted<JSObject*> global(cx, sgo->GetGlobalJSObject());
+  JSAutoCompartment ac(cx, global);
+  if (!ToJSValue(cx, detail, &val)) {
+    MOZ_CRASH("Failed to convert dictionary to JS::Value due to OOM.");
+    return BrowserElementParent::OPEN_WINDOW_IGNORED;
+  }
+
+  nsEventStatus status = nsEventStatus_eIgnore;
+  bool dispatchSucceeded =
+    DispatchCustomDOMEvent(aOpenerFrameElement,
+                           NS_LITERAL_STRING("mozbrowseropenwindow"),
+                           cx,
+                           val, &status);
+
+  if (dispatchSucceeded) {
+    if (aPopupFrameElement->IsInUncomposedDoc()) {
+      return BrowserElementParent::OPEN_WINDOW_ADDED;
+    } else if (status == nsEventStatus_eConsumeNoDefault) {
+      // If the frame was not added to a document, report to callers whether
+      // preventDefault was called on or not
+      return BrowserElementParent::OPEN_WINDOW_CANCELLED;
+    }
+  }
+
+  return BrowserElementParent::OPEN_WINDOW_IGNORED;
+}
+
+/*static*/
+BrowserElementParent::OpenWindowResult
+BrowserElementParent::OpenWindowOOP(TabParent* aOpenerTabParent,
+                                    TabParent* aPopupTabParent,
+                                    PRenderFrameParent* aRenderFrame,
+                                    const nsAString& aURL,
+                                    const nsAString& aName,
+                                    const nsAString& aFeatures,
+                                    TextureFactoryIdentifier* aTextureFactoryIdentifier,
+                                    uint64_t* aLayersId)
+{
+  // Create an iframe owned by the same document which owns openerFrameElement.
+  nsCOMPtr<Element> openerFrameElement = aOpenerTabParent->GetOwnerElement();
+  NS_ENSURE_TRUE(openerFrameElement,
+                 BrowserElementParent::OPEN_WINDOW_IGNORED);
+  RefPtr<HTMLIFrameElement> 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();
+
+  OpenWindowResult opened =
+    DispatchOpenWindowEvent(openerFrameElement, popupFrameElement,
+                            aURL, aName, aFeatures);
+
+  if (opened != BrowserElementParent::OPEN_WINDOW_ADDED) {
+    return opened;
+  }
+
+  // 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);
+
+  RenderFrameParent* rfp = static_cast<RenderFrameParent*>(aRenderFrame);
+  if (!aPopupTabParent->SetRenderFrame(rfp) ||
+      !aPopupTabParent->GetRenderFrameInfo(aTextureFactoryIdentifier, aLayersId)) {
+    return BrowserElementParent::OPEN_WINDOW_IGNORED;
+  }
+
+  return opened;
+}
+
+/* static */
+BrowserElementParent::OpenWindowResult
+BrowserElementParent::OpenWindowInProcess(nsPIDOMWindowOuter* aOpenerWindow,
+                                          nsIURI* aURI,
+                                          const nsAString& aName,
+                                          const nsACString& aFeatures,
+                                          bool aForceNoOpener,
+                                          mozIDOMWindowProxy** aReturnWindow)
+{
+  *aReturnWindow = nullptr;
+
+  // 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<nsPIDOMWindowOuter> win = aOpenerWindow->GetScriptableTop();
+
+  nsCOMPtr<Element> openerFrameElement = win->GetFrameElementInternal();
+  NS_ENSURE_TRUE(openerFrameElement, BrowserElementParent::OPEN_WINDOW_IGNORED);
+
+
+  RefPtr<HTMLIFrameElement> popupFrameElement =
+    CreateIframe(openerFrameElement, aName, /* aRemote = */ false);
+  NS_ENSURE_TRUE(popupFrameElement, BrowserElementParent::OPEN_WINDOW_IGNORED);
+
+  nsAutoCString spec;
+  if (aURI) {
+    aURI->GetSpec(spec);
+  }
+
+  if (!aForceNoOpener) {
+    ErrorResult res;
+    popupFrameElement->PresetOpenerWindow(aOpenerWindow, res);
+    MOZ_ASSERT(!res.Failed());
+  }
+
+  OpenWindowResult opened =
+    DispatchOpenWindowEvent(openerFrameElement, popupFrameElement,
+                            NS_ConvertUTF8toUTF16(spec),
+                            aName,
+                            NS_ConvertUTF8toUTF16(aFeatures));
+
+  if (opened != BrowserElementParent::OPEN_WINDOW_ADDED) {
+    return opened;
+  }
+
+  // Return popupFrameElement's window.
+  RefPtr<nsFrameLoader> frameLoader = popupFrameElement->GetFrameLoader();
+  NS_ENSURE_TRUE(frameLoader, BrowserElementParent::OPEN_WINDOW_IGNORED);
+
+  nsCOMPtr<nsIDocShell> docshell;
+  frameLoader->GetDocShell(getter_AddRefs(docshell));
+  NS_ENSURE_TRUE(docshell, BrowserElementParent::OPEN_WINDOW_IGNORED);
+
+  nsCOMPtr<nsPIDOMWindowOuter> window = docshell->GetWindow();
+  window.forget(aReturnWindow);
+
+  return !!*aReturnWindow ? opened : BrowserElementParent::OPEN_WINDOW_CANCELLED;
+}
+
+} // namespace mozilla