зеркало из https://github.com/mozilla/gecko-dev.git
142 строки
4.1 KiB
C++
142 строки
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 "nsBaseClipboard.h"
|
|
|
|
#include "mozilla/Logging.h"
|
|
|
|
#include "nsIClipboardOwner.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsError.h"
|
|
#include "nsXPCOM.h"
|
|
|
|
using mozilla::LogLevel;
|
|
|
|
static mozilla::LazyLogModule sBaseClipboardLog("BaseClipboard");
|
|
|
|
nsBaseClipboard::nsBaseClipboard()
|
|
: mEmptyingForSetData(false), mIgnoreEmptyNotification(false) {}
|
|
|
|
nsBaseClipboard::~nsBaseClipboard() {
|
|
EmptyClipboard(kSelectionClipboard);
|
|
EmptyClipboard(kGlobalClipboard);
|
|
EmptyClipboard(kFindClipboard);
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(nsBaseClipboard, nsIClipboard)
|
|
|
|
/**
|
|
* Sets the transferable object
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::SetData(nsITransferable* aTransferable,
|
|
nsIClipboardOwner* anOwner,
|
|
int32_t aWhichClipboard) {
|
|
NS_ASSERTION(aTransferable, "clipboard given a null transferable");
|
|
|
|
MOZ_LOG(sBaseClipboardLog, LogLevel::Debug, ("%s", __FUNCTION__));
|
|
|
|
if (aTransferable == mTransferable && anOwner == mClipboardOwner) {
|
|
MOZ_LOG(sBaseClipboardLog, LogLevel::Debug,
|
|
("%s: skipping update.", __FUNCTION__));
|
|
return NS_OK;
|
|
}
|
|
bool selectClipPresent;
|
|
SupportsSelectionClipboard(&selectClipPresent);
|
|
bool findClipPresent;
|
|
SupportsFindClipboard(&findClipPresent);
|
|
if (!selectClipPresent && !findClipPresent &&
|
|
aWhichClipboard != kGlobalClipboard)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
mEmptyingForSetData = true;
|
|
if (NS_FAILED(EmptyClipboard(aWhichClipboard))) {
|
|
MOZ_LOG(sBaseClipboardLog, LogLevel::Debug,
|
|
("%s: emptying clipboard failed.", __FUNCTION__));
|
|
}
|
|
mEmptyingForSetData = false;
|
|
|
|
mClipboardOwner = anOwner;
|
|
mTransferable = aTransferable;
|
|
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
if (mTransferable) {
|
|
rv = SetNativeClipboardData(aWhichClipboard);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
MOZ_LOG(sBaseClipboardLog, LogLevel::Debug,
|
|
("%s: setting native clipboard data failed.", __FUNCTION__));
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/**
|
|
* Gets the transferable object
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::GetData(nsITransferable* aTransferable,
|
|
int32_t aWhichClipboard) {
|
|
NS_ASSERTION(aTransferable, "clipboard given a null transferable");
|
|
|
|
MOZ_LOG(sBaseClipboardLog, LogLevel::Debug, ("%s", __FUNCTION__));
|
|
|
|
bool selectClipPresent;
|
|
SupportsSelectionClipboard(&selectClipPresent);
|
|
bool findClipPresent;
|
|
SupportsFindClipboard(&findClipPresent);
|
|
if (!selectClipPresent && !findClipPresent &&
|
|
aWhichClipboard != kGlobalClipboard)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if (aTransferable)
|
|
return GetNativeClipboardData(aTransferable, aWhichClipboard);
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
NS_IMETHODIMP nsBaseClipboard::EmptyClipboard(int32_t aWhichClipboard) {
|
|
MOZ_LOG(sBaseClipboardLog, LogLevel::Debug,
|
|
("%s: clipboard=%i", __FUNCTION__, aWhichClipboard));
|
|
|
|
bool selectClipPresent;
|
|
SupportsSelectionClipboard(&selectClipPresent);
|
|
bool findClipPresent;
|
|
SupportsFindClipboard(&findClipPresent);
|
|
if (!selectClipPresent && !findClipPresent &&
|
|
aWhichClipboard != kGlobalClipboard)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if (mIgnoreEmptyNotification) return NS_OK;
|
|
|
|
if (mClipboardOwner) {
|
|
mClipboardOwner->LosingOwnership(mTransferable);
|
|
mClipboardOwner = nullptr;
|
|
}
|
|
|
|
mTransferable = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsBaseClipboard::HasDataMatchingFlavors(const nsTArray<nsCString>& aFlavorList,
|
|
int32_t aWhichClipboard,
|
|
bool* outResult) {
|
|
*outResult = true; // say we always do.
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsBaseClipboard::SupportsSelectionClipboard(bool* _retval) {
|
|
*_retval = false; // we don't support the selection clipboard by default.
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsBaseClipboard::SupportsFindClipboard(bool* _retval) {
|
|
*_retval = false; // we don't support the find clipboard by default.
|
|
return NS_OK;
|
|
}
|