gecko-dev/widget/nsFilePickerProxy.cpp

292 строки
6.8 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 "nsFilePickerProxy.h"
#include "nsComponentManagerUtils.h"
#include "nsIFile.h"
#include "mozilla/dom/Directory.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/TabChild.h"
#include "mozilla/dom/IPCBlobUtils.h"
using namespace mozilla::dom;
NS_IMPL_ISUPPORTS(nsFilePickerProxy, nsIFilePicker)
nsFilePickerProxy::nsFilePickerProxy()
: mSelectedType(0)
, mIPCActive(false)
{
}
nsFilePickerProxy::~nsFilePickerProxy()
{
}
NS_IMETHODIMP
nsFilePickerProxy::Init(mozIDOMWindowProxy* aParent, const nsAString& aTitle,
int16_t aMode)
{
TabChild* tabChild = TabChild::GetFrom(aParent);
if (!tabChild) {
return NS_ERROR_FAILURE;
}
mParent = nsPIDOMWindowOuter::From(aParent);
mMode = aMode;
NS_ADDREF_THIS();
tabChild->SendPFilePickerConstructor(this, nsString(aTitle), aMode);
mIPCActive = true;
return NS_OK;
}
void
nsFilePickerProxy::InitNative(nsIWidget* aParent, const nsAString& aTitle)
{
}
NS_IMETHODIMP
nsFilePickerProxy::AppendFilter(const nsAString& aTitle, const nsAString& aFilter)
{
mFilterNames.AppendElement(aTitle);
mFilters.AppendElement(aFilter);
return NS_OK;
}
NS_IMETHODIMP
nsFilePickerProxy::GetDefaultString(nsAString& aDefaultString)
{
aDefaultString = mDefault;
return NS_OK;
}
NS_IMETHODIMP
nsFilePickerProxy::SetDefaultString(const nsAString& aDefaultString)
{
mDefault = aDefaultString;
return NS_OK;
}
NS_IMETHODIMP
nsFilePickerProxy::GetDefaultExtension(nsAString& aDefaultExtension)
{
aDefaultExtension = mDefaultExtension;
return NS_OK;
}
NS_IMETHODIMP
nsFilePickerProxy::SetDefaultExtension(const nsAString& aDefaultExtension)
{
mDefaultExtension = aDefaultExtension;
return NS_OK;
}
NS_IMETHODIMP
nsFilePickerProxy::GetFilterIndex(int32_t* aFilterIndex)
{
*aFilterIndex = mSelectedType;
return NS_OK;
}
NS_IMETHODIMP
nsFilePickerProxy::SetFilterIndex(int32_t aFilterIndex)
{
mSelectedType = aFilterIndex;
return NS_OK;
}
NS_IMETHODIMP
nsFilePickerProxy::GetFile(nsIFile** aFile)
{
MOZ_ASSERT(false, "GetFile is unimplemented; use GetDomFileOrDirectory");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsFilePickerProxy::GetFileURL(nsIURI** aFileURL)
{
MOZ_ASSERT(false, "GetFileURL is unimplemented; use GetDomFileOrDirectory");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsFilePickerProxy::GetFiles(nsISimpleEnumerator** aFiles)
{
MOZ_ASSERT(false, "GetFiles is unimplemented; use GetDomFileOrDirectoryEnumerator");
return NS_ERROR_FAILURE;
}
nsresult
nsFilePickerProxy::Show(int16_t* aReturn)
{
MOZ_ASSERT(false, "Show is unimplemented; use Open");
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsFilePickerProxy::Open(nsIFilePickerShownCallback* aCallback)
{
mCallback = aCallback;
nsString displayDirectory;
if (mDisplayDirectory) {
mDisplayDirectory->GetPath(displayDirectory);
}
if (!mIPCActive) {
return NS_ERROR_FAILURE;
}
SendOpen(mSelectedType, mAddToRecentDocs, mDefault, mDefaultExtension,
mFilters, mFilterNames, displayDirectory, mDisplaySpecialDirectory,
mOkButtonLabel);
return NS_OK;
}
mozilla::ipc::IPCResult
nsFilePickerProxy::Recv__delete__(const MaybeInputData& aData,
const int16_t& aResult)
{
if (aData.type() == MaybeInputData::TInputBlobs) {
const InfallibleTArray<IPCBlob>& blobs = aData.get_InputBlobs().blobs();
for (uint32_t i = 0; i < blobs.Length(); ++i) {
RefPtr<BlobImpl> blobImpl = IPCBlobUtils::Deserialize(blobs[i]);
NS_ENSURE_TRUE(blobImpl, IPC_OK());
if (!blobImpl->IsFile()) {
return IPC_OK();
}
nsPIDOMWindowInner* inner =
mParent ? mParent->GetCurrentInnerWindow() : nullptr;
RefPtr<File> file = File::Create(inner, blobImpl);
MOZ_ASSERT(file);
OwningFileOrDirectory* element = mFilesOrDirectories.AppendElement();
element->SetAsFile() = file;
}
} else if (aData.type() == MaybeInputData::TInputDirectory) {
nsCOMPtr<nsIFile> file;
const nsAString& path(aData.get_InputDirectory().directoryPath());
nsresult rv = NS_NewLocalFile(path, true, getter_AddRefs(file));
if (NS_WARN_IF(NS_FAILED(rv))) {
return IPC_OK();
}
RefPtr<Directory> directory =
Directory::Create(mParent->GetCurrentInnerWindow(), file);
MOZ_ASSERT(directory);
OwningFileOrDirectory* element = mFilesOrDirectories.AppendElement();
element->SetAsDirectory() = directory;
}
if (mCallback) {
mCallback->Done(aResult);
mCallback = nullptr;
}
return IPC_OK();
}
NS_IMETHODIMP
nsFilePickerProxy::GetDomFileOrDirectory(nsISupports** aValue)
{
*aValue = nullptr;
if (mFilesOrDirectories.IsEmpty()) {
return NS_OK;
}
MOZ_ASSERT(mFilesOrDirectories.Length() == 1);
if (mFilesOrDirectories[0].IsFile()) {
nsCOMPtr<nsISupports> blob = ToSupports(mFilesOrDirectories[0].GetAsFile());
blob.forget(aValue);
return NS_OK;
}
MOZ_ASSERT(mFilesOrDirectories[0].IsDirectory());
RefPtr<Directory> directory = mFilesOrDirectories[0].GetAsDirectory();
directory.forget(aValue);
return NS_OK;
}
namespace {
class SimpleEnumerator final : public nsISimpleEnumerator
{
public:
NS_DECL_ISUPPORTS
explicit
SimpleEnumerator(const nsTArray<OwningFileOrDirectory>& aFilesOrDirectories)
: mFilesOrDirectories(aFilesOrDirectories)
, mIndex(0)
{}
NS_IMETHOD
HasMoreElements(bool* aRetvalue) override
{
MOZ_ASSERT(aRetvalue);
*aRetvalue = mIndex < mFilesOrDirectories.Length();
return NS_OK;
}
NS_IMETHOD
GetNext(nsISupports** aValue) override
{
NS_ENSURE_TRUE(mIndex < mFilesOrDirectories.Length(), NS_ERROR_FAILURE);
uint32_t index = mIndex++;
if (mFilesOrDirectories[index].IsFile()) {
nsCOMPtr<nsISupports> blob = ToSupports(mFilesOrDirectories[index].GetAsFile());
blob.forget(aValue);
return NS_OK;
}
MOZ_ASSERT(mFilesOrDirectories[index].IsDirectory());
RefPtr<Directory> directory = mFilesOrDirectories[index].GetAsDirectory();
directory.forget(aValue);
return NS_OK;
}
private:
~SimpleEnumerator()
{}
nsTArray<mozilla::dom::OwningFileOrDirectory> mFilesOrDirectories;
uint32_t mIndex;
};
NS_IMPL_ISUPPORTS(SimpleEnumerator, nsISimpleEnumerator)
} // namespace
NS_IMETHODIMP
nsFilePickerProxy::GetDomFileOrDirectoryEnumerator(nsISimpleEnumerator** aDomfiles)
{
RefPtr<SimpleEnumerator> enumerator =
new SimpleEnumerator(mFilesOrDirectories);
enumerator.forget(aDomfiles);
return NS_OK;
}
void
nsFilePickerProxy::ActorDestroy(ActorDestroyReason aWhy)
{
mIPCActive = false;
if (mCallback) {
mCallback->Done(nsIFilePicker::returnCancel);
mCallback = nullptr;
}
}