diff options
Diffstat (limited to 'widget/android/nsClipboard.cpp')
| -rw-r--r-- | widget/android/nsClipboard.cpp | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/widget/android/nsClipboard.cpp b/widget/android/nsClipboard.cpp new file mode 100644 index 0000000000..c2a03dd540 --- /dev/null +++ b/widget/android/nsClipboard.cpp @@ -0,0 +1,214 @@ +/* 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/java/ClipboardWrappers.h" +#include "mozilla/java/GeckoAppShellWrappers.h" +#include "nsClipboard.h" +#include "nsISupportsPrimitives.h" +#include "nsCOMPtr.h" +#include "nsComponentManagerUtils.h" +#include "nsMemory.h" +#include "nsStringStream.h" +#include "nsPrimitiveHelpers.h" + +using namespace mozilla; + +NS_IMPL_ISUPPORTS_INHERITED0(nsClipboard, nsBaseClipboard) + +/* The Android clipboard only supports text and doesn't support mime types + * so we assume all clipboard data is text/plain for now. Documentation + * indicates that support for other data types is planned for future + * releases. + */ + +nsClipboard::nsClipboard() + : nsBaseClipboard(mozilla::dom::ClipboardCapabilities( + false /* supportsSelectionClipboard */, + false /* supportsFindClipboard */, + false /* supportsSelectionCache */)) { + java::Clipboard::StartTrackingClipboardData( + java::GeckoAppShell::GetApplicationContext()); +} + +nsClipboard::~nsClipboard() { + java::Clipboard::StopTrackingClipboardData( + java::GeckoAppShell::GetApplicationContext()); +} + +// static +nsresult nsClipboard::GetTextFromTransferable(nsITransferable* aTransferable, + nsString& aText, + nsString& aHTML) { + nsTArray<nsCString> flavors; + nsresult rv = aTransferable->FlavorsTransferableCanImport(flavors); + if (NS_FAILED(rv)) { + return rv; + } + + for (auto& flavorStr : flavors) { + if (flavorStr.EqualsLiteral(kTextMime)) { + nsCOMPtr<nsISupports> item; + nsresult rv = + aTransferable->GetTransferData(kTextMime, getter_AddRefs(item)); + if (NS_WARN_IF(NS_FAILED(rv))) { + continue; + } + nsCOMPtr<nsISupportsString> supportsString = do_QueryInterface(item); + if (supportsString) { + supportsString->GetData(aText); + } + } else if (flavorStr.EqualsLiteral(kHTMLMime)) { + nsCOMPtr<nsISupports> item; + nsresult rv = + aTransferable->GetTransferData(kHTMLMime, getter_AddRefs(item)); + if (NS_WARN_IF(NS_FAILED(rv))) { + continue; + } + nsCOMPtr<nsISupportsString> supportsString = do_QueryInterface(item); + if (supportsString) { + supportsString->GetData(aHTML); + } + } + } + return NS_OK; +} + +NS_IMETHODIMP +nsClipboard::SetNativeClipboardData(nsITransferable* aTransferable, + int32_t aWhichClipboard) { + MOZ_DIAGNOSTIC_ASSERT(aTransferable); + MOZ_DIAGNOSTIC_ASSERT( + nsIClipboard::IsClipboardTypeSupported(aWhichClipboard)); + + if (!jni::IsAvailable()) { + return NS_ERROR_NOT_AVAILABLE; + } + + nsString text; + nsString html; + nsresult rv = GetTextFromTransferable(aTransferable, text, html); + if (NS_FAILED(rv)) { + return rv; + } + + if (!html.IsEmpty() && + java::Clipboard::SetHTML(java::GeckoAppShell::GetApplicationContext(), + text, html)) { + return NS_OK; + } + if (!text.IsEmpty() && + java::Clipboard::SetText(java::GeckoAppShell::GetApplicationContext(), + text)) { + return NS_OK; + } + + return NS_ERROR_FAILURE; +} + +NS_IMETHODIMP +nsClipboard::GetNativeClipboardData(nsITransferable* aTransferable, + int32_t aWhichClipboard) { + MOZ_DIAGNOSTIC_ASSERT(aTransferable); + MOZ_DIAGNOSTIC_ASSERT( + nsIClipboard::IsClipboardTypeSupported(aWhichClipboard)); + + if (!jni::IsAvailable()) { + return NS_ERROR_NOT_AVAILABLE; + } + + nsTArray<nsCString> flavors; + aTransferable->FlavorsTransferableCanImport(flavors); + + for (auto& flavorStr : flavors) { + if (flavorStr.EqualsLiteral(kTextMime) || + flavorStr.EqualsLiteral(kHTMLMime)) { + auto text = java::Clipboard::GetTextData( + java::GeckoAppShell::GetApplicationContext(), flavorStr); + if (!text) { + continue; + } + nsString buffer = text->ToString(); + if (buffer.IsEmpty()) { + continue; + } + nsCOMPtr<nsISupports> wrapper; + nsPrimitiveHelpers::CreatePrimitiveForData(flavorStr, buffer.get(), + buffer.Length() * 2, + getter_AddRefs(wrapper)); + if (wrapper) { + aTransferable->SetTransferData(flavorStr.get(), wrapper); + return NS_OK; + } + continue; + } + + mozilla::jni::ByteArray::LocalRef bytes; + nsresult rv = java::Clipboard::GetRawData(flavorStr, &bytes); + if (NS_FAILED(rv) || !bytes) { + continue; + } + nsCOMPtr<nsIInputStream> byteStream; + rv = NS_NewByteInputStream( + getter_AddRefs(byteStream), + mozilla::Span( + reinterpret_cast<const char*>(bytes->GetElements().Elements()), + bytes->Length()), + NS_ASSIGNMENT_COPY); + if (NS_WARN_IF(NS_FAILED(rv))) { + continue; + } + rv = aTransferable->SetTransferData(flavorStr.get(), byteStream); + if (NS_WARN_IF(NS_FAILED(rv))) { + continue; + } + } + + return NS_ERROR_FAILURE; +} + +nsresult nsClipboard::EmptyNativeClipboardData(int32_t aWhichClipboard) { + MOZ_DIAGNOSTIC_ASSERT( + nsIClipboard::IsClipboardTypeSupported(aWhichClipboard)); + + if (!jni::IsAvailable()) { + return NS_ERROR_NOT_AVAILABLE; + } + + java::Clipboard::Clear(java::GeckoAppShell::GetApplicationContext()); + + return NS_OK; +} + +mozilla::Result<int32_t, nsresult> +nsClipboard::GetNativeClipboardSequenceNumber(int32_t aWhichClipboard) { + MOZ_DIAGNOSTIC_ASSERT( + nsIClipboard::IsClipboardTypeSupported(aWhichClipboard)); + + if (!jni::IsAvailable()) { + return Err(NS_ERROR_NOT_AVAILABLE); + } + + return java::Clipboard::GetSequenceNumber( + java::GeckoAppShell::GetApplicationContext()); +} + +mozilla::Result<bool, nsresult> +nsClipboard::HasNativeClipboardDataMatchingFlavors( + const nsTArray<nsCString>& aFlavorList, int32_t aWhichClipboard) { + MOZ_DIAGNOSTIC_ASSERT( + nsIClipboard::IsClipboardTypeSupported(aWhichClipboard)); + + if (!jni::IsAvailable()) { + return Err(NS_ERROR_NOT_AVAILABLE); + } + + for (auto& flavor : aFlavorList) { + if (java::Clipboard::HasData(java::GeckoAppShell::GetApplicationContext(), + NS_ConvertASCIItoUTF16(flavor))) { + return true; + } + } + + return false; +} |