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c2f5a4ac7a
It's not clear to me why specializing nsCOMPtr<nsISupports> is
particularly useful, and this removes a lot of code, bringing us closer
to unifying nsCOMPtr and RefPtr.
The changes in other places are needed because we used to allow
nsCOMPtr<nsISupports> to implicitly coerce to nsISupports even for
rvalue references.
0:47.88 /home/emilio/src/moz/gecko-4/netwerk/protocol/http/nsHttpActivityDistributor.cpp:121:11: error: conversion function from 'nsCOMPtr<nsISupports>' to 'nsISupports *' invokes a deleted function
0:47.88 nsCOMPtr<nsISupports>(do_QueryObject(channel)), aActivityType,
0:47.88 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0:47.88 /home/emilio/src/moz/gecko-4/obj-debug/dist/include/nsCOMPtr.h:764:3: note: 'operator nsISupports *' has been explicitly marked deleted here
0:47.88 operator T*() const&& = delete;
0:47.88 ^
0:47.88 /home/emilio/src/moz/gecko-4/netwerk/protocol/http/nsHttpActivityDistributor.cpp:29:57: note: passing argument to parameter 'aHttpChannel' here
0:47.88 nsHttpActivityDistributor::ObserveActivity(nsISupports* aHttpChannel,
0:47.88 ^
Which is not allowed for a good reason, generally.
Differential Revision: https://phabricator.services.mozilla.com/D179124
124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* 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 "nsClipboardHelper.h"
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// basics
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#include "nsComponentManagerUtils.h"
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#include "nsCOMPtr.h"
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#include "nsXPCOM.h"
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#include "nsISupportsPrimitives.h"
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#include "nsServiceManagerUtils.h"
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// helpers
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#include "nsIClipboard.h"
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#include "mozilla/dom/Document.h"
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#include "nsITransferable.h"
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#include "nsReadableUtils.h"
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NS_IMPL_ISUPPORTS(nsClipboardHelper, nsIClipboardHelper)
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/*****************************************************************************
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* nsClipboardHelper ctor / dtor
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*****************************************************************************/
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nsClipboardHelper::nsClipboardHelper() = default;
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nsClipboardHelper::~nsClipboardHelper() {
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// no members, nothing to destroy
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}
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/*****************************************************************************
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* nsIClipboardHelper methods
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*****************************************************************************/
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NS_IMETHODIMP
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nsClipboardHelper::CopyStringToClipboard(const nsAString& aString,
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int32_t aClipboardID,
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SensitiveData aSensitive) {
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nsresult rv;
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// get the clipboard
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nsCOMPtr<nsIClipboard> clipboard(
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do_GetService("@mozilla.org/widget/clipboard;1", &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ENSURE_TRUE(clipboard, NS_ERROR_FAILURE);
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// don't go any further if they're asking for the selection
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// clipboard on a platform which doesn't support it (i.e., unix)
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if (nsIClipboard::kSelectionClipboard == aClipboardID &&
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!clipboard->IsClipboardTypeSupported(nsIClipboard::kSelectionClipboard)) {
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return NS_ERROR_FAILURE;
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}
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// don't go any further if they're asking for the find clipboard on a platform
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// which doesn't support it (i.e., non-osx)
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if (nsIClipboard::kFindClipboard == aClipboardID &&
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!clipboard->IsClipboardTypeSupported(nsIClipboard::kFindClipboard)) {
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return NS_ERROR_FAILURE;
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}
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// create a transferable for putting data on the clipboard
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nsCOMPtr<nsITransferable> trans(
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do_CreateInstance("@mozilla.org/widget/transferable;1", &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ENSURE_TRUE(trans, NS_ERROR_FAILURE);
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trans->Init(nullptr);
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if (aSensitive == SensitiveData::Sensitive) {
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trans->SetIsPrivateData(true);
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}
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// Add the text data flavor to the transferable
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rv = trans->AddDataFlavor(kTextMime);
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NS_ENSURE_SUCCESS(rv, rv);
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// get wStrings to hold clip data
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nsCOMPtr<nsISupportsString> data(
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do_CreateInstance("@mozilla.org/supports-string;1", &rv));
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NS_ENSURE_SUCCESS(rv, rv);
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NS_ENSURE_TRUE(data, NS_ERROR_FAILURE);
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// populate the string
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rv = data->SetData(aString);
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NS_ENSURE_SUCCESS(rv, rv);
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// Pass the data object as |nsISupports| so that when the transferable holds
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// onto it, it will addref the correct interface.
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rv = trans->SetTransferData(kTextMime, ToSupports(data));
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NS_ENSURE_SUCCESS(rv, rv);
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// put the transferable on the clipboard
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rv = clipboard->SetData(trans, nullptr, aClipboardID);
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboardHelper::CopyString(const nsAString& aString,
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SensitiveData aSensitive) {
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nsresult rv;
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// copy to the global clipboard. it's bad if this fails in any way.
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rv = CopyStringToClipboard(aString, nsIClipboard::kGlobalClipboard,
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aSensitive);
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NS_ENSURE_SUCCESS(rv, rv);
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// unix also needs us to copy to the selection clipboard. this will
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// fail in CopyStringToClipboard if we're not on a platform that
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// supports the selection clipboard. (this could have been #ifdef
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// XP_UNIX, but using the IsClipboardTypeSupported call is the more correct
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// thing to do.
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//
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// if this fails in any way other than "not being unix", we'll get
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// the assertion we need in CopyStringToClipboard, and we needn't
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// assert again here.
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CopyStringToClipboard(aString, nsIClipboard::kSelectionClipboard, aSensitive);
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return NS_OK;
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}
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