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-rw-r--r--widget/nsFilePickerProxy.cpp296
1 files changed, 296 insertions, 0 deletions
diff --git a/widget/nsFilePickerProxy.cpp b/widget/nsFilePickerProxy.cpp
new file mode 100644
index 0000000000..8777f338cb
--- /dev/null
+++ b/widget/nsFilePickerProxy.cpp
@@ -0,0 +1,296 @@
+/* -*- 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 "nsSimpleEnumerator.h"
+#include "mozilla/dom/BlobImpl.h"
+#include "mozilla/dom/Directory.h"
+#include "mozilla/dom/File.h"
+#include "mozilla/dom/BrowserChild.h"
+#include "mozilla/dom/BrowsingContext.h"
+#include "mozilla/dom/IPCBlobUtils.h"
+
+using namespace mozilla::dom;
+
+NS_IMPL_ISUPPORTS(nsFilePickerProxy, nsIFilePicker)
+
+nsFilePickerProxy::nsFilePickerProxy()
+ : mSelectedType(0), mCapture(captureNone), mIPCActive(false) {}
+
+nsFilePickerProxy::~nsFilePickerProxy() = default;
+
+NS_IMETHODIMP
+nsFilePickerProxy::Init(mozIDOMWindowProxy* aParent, const nsAString& aTitle,
+ nsIFilePicker::Mode aMode,
+ BrowsingContext* aBrowsingContext) {
+ BrowserChild* browserChild = BrowserChild::GetFrom(aParent);
+ if (!browserChild) {
+ return NS_ERROR_FAILURE;
+ }
+
+ mParent = nsPIDOMWindowOuter::From(aParent);
+
+ mMode = aMode;
+
+ browserChild->SendPFilePickerConstructor(this, 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::GetCapture(nsIFilePicker::CaptureTarget* aCapture) {
+ *aCapture = mCapture;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFilePickerProxy::SetCapture(nsIFilePicker::CaptureTarget aCapture) {
+ mCapture = aCapture;
+ 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(nsIFilePicker::ResultCode* 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, mRawFilters, displayDirectory,
+ mDisplaySpecialDirectory, mOkButtonLabel, mCapture);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsFilePickerProxy::Close() {
+ SendClose();
+
+ return NS_OK;
+}
+
+mozilla::ipc::IPCResult nsFilePickerProxy::Recv__delete__(
+ const MaybeInputData& aData, const nsIFilePicker::ResultCode& aResult) {
+ nsPIDOMWindowInner* inner =
+ mParent ? mParent->GetCurrentInnerWindow() : nullptr;
+
+ if (NS_WARN_IF(!inner)) {
+ return IPC_OK();
+ }
+
+ if (aData.type() == MaybeInputData::TInputBlobs) {
+ const nsTArray<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();
+ }
+
+ RefPtr<File> file = File::Create(inner->AsGlobal(), blobImpl);
+ if (NS_WARN_IF(!file)) {
+ return IPC_OK();
+ }
+
+ 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(inner->AsGlobal(), 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 nsSimpleEnumerator {
+ public:
+ explicit SimpleEnumerator(
+ const nsTArray<OwningFileOrDirectory>& aFilesOrDirectories)
+ : mFilesOrDirectories(aFilesOrDirectories.Clone()), 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:
+ nsTArray<mozilla::dom::OwningFileOrDirectory> mFilesOrDirectories;
+ uint32_t mIndex;
+};
+
+} // 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;
+ }
+}
+
+nsresult nsFilePickerProxy::ResolveSpecialDirectory(
+ const nsAString& aSpecialDirectory) {
+ MOZ_ASSERT(XRE_IsContentProcess());
+ // Resolving the special-directory name to a path in both the child and parent
+ // processes is redundant -- and sandboxing may prevent us from doing so in
+ // the child process, anyway. (See bugs 1357846 and 1838244.)
+ //
+ // Unfortunately we can't easily verify that `aSpecialDirectory` is usable or
+ // even meaningful here, so we just accept anything.
+ return NS_OK;
+}