mirror of
https://github.com/classilla/tenfourfox.git
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278 lines
6.0 KiB
C++
278 lines
6.0 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ArchiveRequest.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/dom/ArchiveRequestBinding.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "nsContentUtils.h"
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using namespace mozilla;
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USING_ARCHIVEREADER_NAMESPACE
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/**
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* Class used to make asynchronous the ArchiveRequest.
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*/
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class ArchiveRequestEvent : public nsRunnable
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{
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public:
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NS_DECL_NSIRUNNABLE
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explicit ArchiveRequestEvent(ArchiveRequest* aRequest)
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: mRequest(aRequest)
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{
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MOZ_COUNT_CTOR(ArchiveRequestEvent);
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}
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protected:
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~ArchiveRequestEvent()
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{
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MOZ_COUNT_DTOR(ArchiveRequestEvent);
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}
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private: //data
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RefPtr<ArchiveRequest> mRequest;
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};
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NS_IMETHODIMP
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ArchiveRequestEvent::Run()
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{
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MOZ_ASSERT(mRequest, "the request is not longer valid");
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mRequest->Run();
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return NS_OK;
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}
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// ArchiveRequest
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ArchiveRequest::ArchiveRequest(nsPIDOMWindow* aWindow,
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ArchiveReader* aReader)
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: DOMRequest(aWindow),
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mArchiveReader(aReader)
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{
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MOZ_ASSERT(aReader);
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MOZ_COUNT_CTOR(ArchiveRequest);
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/* An event to make this request asynchronous: */
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RefPtr<ArchiveRequestEvent> event = new ArchiveRequestEvent(this);
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NS_DispatchToCurrentThread(event);
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}
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ArchiveRequest::~ArchiveRequest()
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{
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MOZ_COUNT_DTOR(ArchiveRequest);
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}
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nsresult
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ArchiveRequest::PreHandleEvent(EventChainPreVisitor& aVisitor)
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{
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aVisitor.mCanHandle = true;
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aVisitor.mParentTarget = nullptr;
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return NS_OK;
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}
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/* virtual */ JSObject*
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ArchiveRequest::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return ArchiveRequestBinding::Wrap(aCx, this, aGivenProto);
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}
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ArchiveReader*
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ArchiveRequest::Reader() const
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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return mArchiveReader;
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}
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// Here the request is processed:
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void
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ArchiveRequest::Run()
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{
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// Register this request to the reader.
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// When the reader is ready to return data, a 'Ready()' will be called
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nsresult rv = mArchiveReader->RegisterRequest(this);
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if (NS_FAILED(rv)) {
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FireError(rv);
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}
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}
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void
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ArchiveRequest::OpGetFilenames()
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{
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mOperation = GetFilenames;
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}
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void
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ArchiveRequest::OpGetFile(const nsAString& aFilename)
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{
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mOperation = GetFile;
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mFilename = aFilename;
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}
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void
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ArchiveRequest::OpGetFiles()
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{
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mOperation = GetFiles;
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}
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nsresult
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ArchiveRequest::ReaderReady(nsTArray<RefPtr<File>>& aFileList,
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nsresult aStatus)
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{
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if (NS_FAILED(aStatus)) {
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FireError(aStatus);
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return NS_OK;
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}
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nsresult rv;
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AutoJSAPI jsapi;
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if (NS_WARN_IF(!jsapi.Init(GetOwner()))) {
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return NS_ERROR_UNEXPECTED;
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}
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JSContext* cx = jsapi.cx();
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JS::Rooted<JS::Value> result(cx);
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switch (mOperation) {
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case GetFilenames:
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rv = GetFilenamesResult(cx, result.address(), aFileList);
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break;
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case GetFile:
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rv = GetFileResult(cx, &result, aFileList);
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break;
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case GetFiles:
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rv = GetFilesResult(cx, &result, aFileList);
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break;
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default:
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rv = NS_ERROR_UNEXPECTED;
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break;
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}
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if (NS_FAILED(rv)) {
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NS_WARNING("Get*Result failed!");
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}
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if (NS_SUCCEEDED(rv)) {
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FireSuccess(result);
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}
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else {
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FireError(rv);
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}
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return NS_OK;
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}
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nsresult
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ArchiveRequest::GetFilenamesResult(JSContext* aCx,
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JS::Value* aValue,
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nsTArray<RefPtr<File>>& aFileList)
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{
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JS::Rooted<JSObject*> array(aCx, JS_NewArrayObject(aCx, aFileList.Length()));
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if (!array) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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JS::Rooted<JSString*> str(aCx);
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for (uint32_t i = 0; i < aFileList.Length(); ++i) {
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RefPtr<File> file = aFileList[i];
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nsString filename;
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file->GetName(filename);
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str = JS_NewUCStringCopyZ(aCx, filename.get());
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NS_ENSURE_TRUE(str, NS_ERROR_OUT_OF_MEMORY);
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if (!JS_DefineElement(aCx, array, i, str, JSPROP_ENUMERATE)) {
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return NS_ERROR_FAILURE;
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}
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}
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if (!JS_FreezeObject(aCx, array)) {
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return NS_ERROR_FAILURE;
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}
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aValue->setObject(*array);
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return NS_OK;
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}
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nsresult
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ArchiveRequest::GetFileResult(JSContext* aCx,
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JS::MutableHandle<JS::Value> aValue,
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nsTArray<RefPtr<File>>& aFileList)
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{
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for (uint32_t i = 0; i < aFileList.Length(); ++i) {
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RefPtr<File> file = aFileList[i];
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nsString filename;
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file->GetName(filename);
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if (filename == mFilename) {
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if (!ToJSValue(aCx, file, aValue)) {
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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}
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return NS_ERROR_FAILURE;
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}
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nsresult
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ArchiveRequest::GetFilesResult(JSContext* aCx,
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JS::MutableHandle<JS::Value> aValue,
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nsTArray<RefPtr<File>>& aFileList)
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{
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JS::Rooted<JSObject*> array(aCx, JS_NewArrayObject(aCx, aFileList.Length()));
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if (!array) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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for (uint32_t i = 0; i < aFileList.Length(); ++i) {
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RefPtr<File> file = aFileList[i];
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JS::Rooted<JS::Value> value(aCx);
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if (!ToJSValue(aCx, file, &value)) {
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return NS_ERROR_FAILURE;
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}
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if (!JS_DefineElement(aCx, array, i, value, JSPROP_ENUMERATE)) {
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return NS_ERROR_FAILURE;
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}
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}
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aValue.setObject(*array);
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return NS_OK;
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}
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// static
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already_AddRefed<ArchiveRequest>
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ArchiveRequest::Create(nsPIDOMWindow* aOwner,
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ArchiveReader* aReader)
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{
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NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
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RefPtr<ArchiveRequest> request = new ArchiveRequest(aOwner, aReader);
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return request.forget();
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}
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NS_IMPL_CYCLE_COLLECTION_INHERITED(ArchiveRequest, DOMRequest,
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mArchiveReader)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ArchiveRequest)
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NS_INTERFACE_MAP_END_INHERITING(DOMRequest)
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NS_IMPL_ADDREF_INHERITED(ArchiveRequest, DOMRequest)
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NS_IMPL_RELEASE_INHERITED(ArchiveRequest, DOMRequest)
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