зеркало из https://github.com/mozilla/gecko-dev.git
127 строки
3.2 KiB
C++
127 строки
3.2 KiB
C++
/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "HeadlessClipboard.h"
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#include "nsISupportsPrimitives.h"
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#include "nsComponentManagerUtils.h"
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#include "nsCOMPtr.h"
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namespace mozilla {
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namespace widget {
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NS_IMPL_ISUPPORTS(HeadlessClipboard, nsIClipboard)
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HeadlessClipboard::HeadlessClipboard()
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: mClipboard(MakeUnique<HeadlessClipboardData>())
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{
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}
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NS_IMETHODIMP
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HeadlessClipboard::SetData(nsITransferable *aTransferable,
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nsIClipboardOwner *anOwner,
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int32_t aWhichClipboard)
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{
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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// Clear out the clipboard in order to set the new data.
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EmptyClipboard(aWhichClipboard);
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// Only support plain text for now.
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nsCOMPtr<nsISupports> clip;
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uint32_t len;
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nsresult rv = aTransferable->GetTransferData(kUnicodeMime,
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getter_AddRefs(clip),
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&len);
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if (NS_FAILED(rv)) {
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return rv;
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}
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nsCOMPtr<nsISupportsString> wideString = do_QueryInterface(clip);
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if (!wideString) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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nsAutoString utf16string;
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wideString->GetData(utf16string);
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mClipboard->SetText(utf16string);
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return NS_OK;
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}
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NS_IMETHODIMP
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HeadlessClipboard::GetData(nsITransferable *aTransferable,
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int32_t aWhichClipboard)
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{
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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nsresult rv;
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nsCOMPtr<nsISupportsString> dataWrapper =
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do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv);
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rv = dataWrapper->SetData(mClipboard->GetText());
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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nsCOMPtr<nsISupports> genericDataWrapper = do_QueryInterface(dataWrapper);
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uint32_t len = mClipboard->GetText().Length() * sizeof(char16_t);
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rv = aTransferable->SetTransferData(kUnicodeMime, genericDataWrapper, len);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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HeadlessClipboard::EmptyClipboard(int32_t aWhichClipboard)
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{
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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mClipboard->Clear();
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return NS_OK;
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}
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NS_IMETHODIMP
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HeadlessClipboard::HasDataMatchingFlavors(const char **aFlavorList,
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uint32_t aLength, int32_t aWhichClipboard,
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bool *aHasType)
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{
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*aHasType = false;
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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// Retrieve the union of all aHasType in aFlavorList
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for (uint32_t i = 0; i < aLength; ++i) {
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const char *flavor = aFlavorList[i];
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if (!flavor) {
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continue;
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}
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if (!strcmp(flavor, kUnicodeMime) && mClipboard->HasText()) {
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*aHasType = true;
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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HeadlessClipboard::SupportsSelectionClipboard(bool *aIsSupported)
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{
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*aIsSupported = false;
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return NS_OK;
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}
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NS_IMETHODIMP
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HeadlessClipboard::SupportsFindClipboard(bool* _retval)
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{
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NS_ENSURE_ARG_POINTER(_retval);
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*_retval = false;
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return NS_OK;
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}
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} // namespace widget
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} // namespace mozilla
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