gecko-dev/dom/presentation/PresentationCallbacks.cpp

195 строки
6.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 "mozilla/dom/Promise.h"
#include "nsIDocShell.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIPresentationService.h"
#include "nsIWebProgress.h"
#include "nsServiceManagerUtils.h"
#include "PresentationCallbacks.h"
#include "PresentationRequest.h"
#include "PresentationConnection.h"
using namespace mozilla;
using namespace mozilla::dom;
/*
* Implementation of PresentationRequesterCallback
*/
NS_IMPL_ISUPPORTS(PresentationRequesterCallback, nsIPresentationServiceCallback)
PresentationRequesterCallback::PresentationRequesterCallback(PresentationRequest* aRequest,
const nsAString& aUrl,
const nsAString& aSessionId,
Promise* aPromise)
: mRequest(aRequest)
, mSessionId(aSessionId)
, mPromise(aPromise)
{
MOZ_ASSERT(mRequest);
MOZ_ASSERT(mPromise);
MOZ_ASSERT(!mSessionId.IsEmpty());
}
PresentationRequesterCallback::~PresentationRequesterCallback()
{
}
// nsIPresentationServiceCallback
NS_IMETHODIMP
PresentationRequesterCallback::NotifySuccess()
{
MOZ_ASSERT(NS_IsMainThread());
// At the sender side, this function must get called after the transport
// channel is ready. So we simply set the connection state as connected.
RefPtr<PresentationConnection> connection =
PresentationConnection::Create(mRequest->GetOwner(), mSessionId,
PresentationConnectionState::Connected);
if (NS_WARN_IF(!connection)) {
mPromise->MaybeReject(NS_ERROR_DOM_OPERATION_ERR);
return NS_OK;
}
mPromise->MaybeResolve(connection);
return mRequest->DispatchConnectionAvailableEvent(connection);
}
NS_IMETHODIMP
PresentationRequesterCallback::NotifyError(nsresult aError)
{
MOZ_ASSERT(NS_IsMainThread());
mPromise->MaybeReject(aError);
return NS_OK;
}
/*
* Implementation of PresentationRequesterCallback
*/
NS_IMPL_ISUPPORTS(PresentationResponderLoadingCallback,
nsIWebProgressListener,
nsISupportsWeakReference)
PresentationResponderLoadingCallback::PresentationResponderLoadingCallback(const nsAString& aSessionId)
: mSessionId(aSessionId)
{
}
PresentationResponderLoadingCallback::~PresentationResponderLoadingCallback()
{
if (mProgress) {
mProgress->RemoveProgressListener(this);
mProgress = nullptr;
}
}
nsresult
PresentationResponderLoadingCallback::Init(nsIDocShell* aDocShell)
{
mProgress = do_GetInterface(aDocShell);
if (NS_WARN_IF(!mProgress)) {
return NS_ERROR_NOT_AVAILABLE;
}
uint32_t busyFlags = nsIDocShell::BUSY_FLAGS_NONE;
nsresult rv = aDocShell->GetBusyFlags(&busyFlags);
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
if ((busyFlags == nsIDocShell::BUSY_FLAGS_NONE) ||
(busyFlags & nsIDocShell::BUSY_FLAGS_PAGE_LOADING)) {
// The docshell has finished loading or is receiving data (|STATE_TRANSFERRING|
// has already been fired), so the page is ready for presentation use.
return NotifyReceiverReady();
}
// Start to listen to document state change event |STATE_TRANSFERRING|.
return mProgress->AddProgressListener(this, nsIWebProgress::NOTIFY_STATE_DOCUMENT);
}
nsresult
PresentationResponderLoadingCallback::NotifyReceiverReady()
{
nsCOMPtr<nsPIDOMWindowOuter> window = do_GetInterface(mProgress);
if (NS_WARN_IF(!window || !window->GetCurrentInnerWindow())) {
return NS_ERROR_NOT_AVAILABLE;
}
uint64_t windowId = window->GetCurrentInnerWindow()->WindowID();
nsCOMPtr<nsIPresentationService> service =
do_GetService(PRESENTATION_SERVICE_CONTRACTID);
if (NS_WARN_IF(!service)) {
return NS_ERROR_NOT_AVAILABLE;
}
return service->NotifyReceiverReady(mSessionId, windowId);
}
// nsIWebProgressListener
NS_IMETHODIMP
PresentationResponderLoadingCallback::OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
uint32_t aStateFlags,
nsresult aStatus)
{
MOZ_ASSERT(NS_IsMainThread());
if (aStateFlags & nsIWebProgressListener::STATE_TRANSFERRING) {
mProgress->RemoveProgressListener(this);
return NotifyReceiverReady();
}
return NS_OK;
}
NS_IMETHODIMP
PresentationResponderLoadingCallback::OnProgressChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
int32_t aCurSelfProgress,
int32_t aMaxSelfProgress,
int32_t aCurTotalProgress,
int32_t aMaxTotalProgress)
{
// Do nothing.
return NS_OK;
}
NS_IMETHODIMP
PresentationResponderLoadingCallback::OnLocationChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsIURI* aURI,
uint32_t aFlags)
{
// Do nothing.
return NS_OK;
}
NS_IMETHODIMP
PresentationResponderLoadingCallback::OnStatusChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
nsresult aStatus,
const char16_t* aMessage)
{
// Do nothing.
return NS_OK;
}
NS_IMETHODIMP
PresentationResponderLoadingCallback::OnSecurityChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest,
uint32_t state)
{
// Do nothing.
return NS_OK;
}