mirror of
https://github.com/mozilla/gecko-dev.git
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5dc21d568c
The inclusions were removed with the following very crude script and the
resulting breakage was fixed up by hand. The manual fixups did either
revert the changes done by the script, replace a generic header with a more
specific one or replace a header with a forward declaration.
find . -name "*.idl" | grep -v web-platform | grep -v third_party | while read path; do
interfaces=$(grep "^\(class\|interface\).*:.*" "$path" | cut -d' ' -f2)
if [ -n "$interfaces" ]; then
if [[ "$interfaces" == *$'\n'* ]]; then
regexp="\("
for i in $interfaces; do regexp="$regexp$i\|"; done
regexp="${regexp%%\\\|}\)"
else
regexp="$interfaces"
fi
interface=$(basename "$path")
rg -l "#include.*${interface%%.idl}.h" . | while read path2; do
hits=$(grep -v "#include.*${interface%%.idl}.h" "$path2" | grep -c "$regexp" )
if [ $hits -eq 0 ]; then
echo "Removing ${interface} from ${path2}"
grep -v "#include.*${interface%%.idl}.h" "$path2" > "$path2".tmp
mv -f "$path2".tmp "$path2"
fi
done
fi
done
Differential Revision: https://phabricator.services.mozilla.com/D55444
--HG--
extra : moz-landing-system : lando
1073 lines
40 KiB
C++
1073 lines
40 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "nsClipboard.h"
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#include <ole2.h>
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#include <shlobj.h>
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#include <intshcut.h>
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// shellapi.h is needed to build with WIN32_LEAN_AND_MEAN
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#include <shellapi.h>
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#include "nsArrayUtils.h"
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#include "nsCOMPtr.h"
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#include "nsDataObj.h"
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#include "nsString.h"
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#include "nsNativeCharsetUtils.h"
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#include "nsITransferable.h"
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#include "nsCOMPtr.h"
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#include "nsXPCOM.h"
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#include "nsReadableUtils.h"
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#include "nsUnicharUtils.h"
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#include "nsPrimitiveHelpers.h"
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#include "nsIWidget.h"
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#include "nsWidgetsCID.h"
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#include "nsCRT.h"
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#include "nsNetUtil.h"
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#include "nsIFileProtocolHandler.h"
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#include "nsEscape.h"
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#include "nsIObserverService.h"
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#include "nsMimeTypes.h"
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#include "imgITools.h"
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using mozilla::LogLevel;
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static mozilla::LazyLogModule gWin32ClipboardLog("nsClipboard");
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// oddly, this isn't in the MSVC headers anywhere.
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UINT nsClipboard::CF_HTML = ::RegisterClipboardFormatW(L"HTML Format");
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UINT nsClipboard::CF_CUSTOMTYPES =
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::RegisterClipboardFormatW(L"application/x-moz-custom-clipdata");
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//-------------------------------------------------------------------------
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//
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// nsClipboard constructor
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//
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//-------------------------------------------------------------------------
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nsClipboard::nsClipboard() : nsBaseClipboard() {
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mIgnoreEmptyNotification = false;
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mWindow = nullptr;
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// Register for a shutdown notification so that we can flush data
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// to the OS clipboard.
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nsCOMPtr<nsIObserverService> observerService =
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do_GetService("@mozilla.org/observer-service;1");
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if (observerService) {
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observerService->AddObserver(this, NS_XPCOM_WILL_SHUTDOWN_OBSERVER_ID,
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PR_FALSE);
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}
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}
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//-------------------------------------------------------------------------
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// nsClipboard destructor
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//-------------------------------------------------------------------------
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nsClipboard::~nsClipboard() {}
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NS_IMPL_ISUPPORTS_INHERITED(nsClipboard, nsBaseClipboard, nsIObserver)
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NS_IMETHODIMP
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nsClipboard::Observe(nsISupports* aSubject, const char* aTopic,
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const char16_t* aData) {
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// This will be called on shutdown.
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::OleFlushClipboard();
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::CloseClipboard();
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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UINT nsClipboard::GetFormat(const char* aMimeStr, bool aMapHTMLMime) {
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UINT format;
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if (strcmp(aMimeStr, kTextMime) == 0) {
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format = CF_TEXT;
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} else if (strcmp(aMimeStr, kUnicodeMime) == 0) {
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format = CF_UNICODETEXT;
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} else if (strcmp(aMimeStr, kRTFMime) == 0) {
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format = ::RegisterClipboardFormat(L"Rich Text Format");
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} else if (strcmp(aMimeStr, kJPEGImageMime) == 0 ||
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strcmp(aMimeStr, kJPGImageMime) == 0 ||
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strcmp(aMimeStr, kPNGImageMime) == 0) {
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format = CF_DIBV5;
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} else if (strcmp(aMimeStr, kFileMime) == 0 ||
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strcmp(aMimeStr, kFilePromiseMime) == 0) {
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format = CF_HDROP;
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} else if ((strcmp(aMimeStr, kNativeHTMLMime) == 0) ||
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(aMapHTMLMime && strcmp(aMimeStr, kHTMLMime) == 0)) {
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format = CF_HTML;
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} else if (strcmp(aMimeStr, kCustomTypesMime) == 0) {
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format = CF_CUSTOMTYPES;
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} else {
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format = ::RegisterClipboardFormatW(NS_ConvertASCIItoUTF16(aMimeStr).get());
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}
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return format;
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}
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//-------------------------------------------------------------------------
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nsresult nsClipboard::CreateNativeDataObject(nsITransferable* aTransferable,
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IDataObject** aDataObj,
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nsIURI* uri) {
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if (nullptr == aTransferable) {
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return NS_ERROR_FAILURE;
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}
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// Create our native DataObject that implements
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// the OLE IDataObject interface
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nsDataObj* dataObj = new nsDataObj(uri);
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if (!dataObj) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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dataObj->AddRef();
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// Now set it up with all the right data flavors & enums
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nsresult res = SetupNativeDataObject(aTransferable, dataObj);
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if (NS_OK == res) {
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*aDataObj = dataObj;
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} else {
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dataObj->Release();
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}
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return res;
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}
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//-------------------------------------------------------------------------
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nsresult nsClipboard::SetupNativeDataObject(nsITransferable* aTransferable,
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IDataObject* aDataObj) {
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if (nullptr == aTransferable || nullptr == aDataObj) {
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return NS_ERROR_FAILURE;
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}
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nsDataObj* dObj = static_cast<nsDataObj*>(aDataObj);
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// Now give the Transferable to the DataObject
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// for getting the data out of it
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dObj->SetTransferable(aTransferable);
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// Get the transferable list of data flavors
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nsTArray<nsCString> flavors;
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aTransferable->FlavorsTransferableCanExport(flavors);
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// Walk through flavors that contain data and register them
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// into the DataObj as supported flavors
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for (uint32_t i = 0; i < flavors.Length(); i++) {
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nsCString& flavorStr = flavors[i];
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// When putting data onto the clipboard, we want to maintain kHTMLMime
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// ("text/html") and not map it to CF_HTML here since this will be done
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// below.
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UINT format = GetFormat(flavorStr.get(), false);
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// Now tell the native IDataObject about both our mime type and
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// the native data format
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FORMATETC fe;
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SET_FORMATETC(fe, format, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL);
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dObj->AddDataFlavor(flavorStr.get(), &fe);
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// Do various things internal to the implementation, like map one
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// flavor to another or add additional flavors based on what's required
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// for the win32 impl.
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if (flavorStr.EqualsLiteral(kUnicodeMime)) {
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// if we find text/unicode, also advertise text/plain (which we will
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// convert on our own in nsDataObj::GetText().
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FORMATETC textFE;
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SET_FORMATETC(textFE, CF_TEXT, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL);
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dObj->AddDataFlavor(kTextMime, &textFE);
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} else if (flavorStr.EqualsLiteral(kHTMLMime)) {
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// if we find text/html, also advertise win32's html flavor (which we will
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// convert on our own in nsDataObj::GetText().
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FORMATETC htmlFE;
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SET_FORMATETC(htmlFE, CF_HTML, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL);
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dObj->AddDataFlavor(kHTMLMime, &htmlFE);
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} else if (flavorStr.EqualsLiteral(kURLMime)) {
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// if we're a url, in addition to also being text, we need to register
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// the "file" flavors so that the win32 shell knows to create an internet
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// shortcut when it sees one of these beasts.
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FORMATETC shortcutFE;
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SET_FORMATETC(shortcutFE,
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::RegisterClipboardFormat(CFSTR_FILEDESCRIPTORA), 0,
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DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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SET_FORMATETC(shortcutFE,
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::RegisterClipboardFormat(CFSTR_FILEDESCRIPTORW), 0,
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DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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SET_FORMATETC(shortcutFE, ::RegisterClipboardFormat(CFSTR_FILECONTENTS),
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0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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SET_FORMATETC(shortcutFE, ::RegisterClipboardFormat(CFSTR_INETURLA), 0,
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DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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SET_FORMATETC(shortcutFE, ::RegisterClipboardFormat(CFSTR_INETURLW), 0,
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DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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} else if (flavorStr.EqualsLiteral(kPNGImageMime) ||
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flavorStr.EqualsLiteral(kJPEGImageMime) ||
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flavorStr.EqualsLiteral(kJPGImageMime) ||
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flavorStr.EqualsLiteral(kGIFImageMime) ||
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flavorStr.EqualsLiteral(kNativeImageMime)) {
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// if we're an image, register the native bitmap flavor
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FORMATETC imageFE;
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// Add DIBv5
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SET_FORMATETC(imageFE, CF_DIBV5, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(flavorStr.get(), &imageFE);
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// Add DIBv3
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SET_FORMATETC(imageFE, CF_DIB, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(flavorStr.get(), &imageFE);
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} else if (flavorStr.EqualsLiteral(kFilePromiseMime)) {
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// if we're a file promise flavor, also register the
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// CFSTR_PREFERREDDROPEFFECT format. The data object
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// returns a value of DROPEFFECTS_MOVE to the drop target
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// when it asks for the value of this format. This causes
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// the file to be moved from the temporary location instead
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// of being copied. The right thing to do here is to call
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// SetData() on the data object and set the value of this format
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// to DROPEFFECTS_MOVE on this particular data object. But,
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// since all the other clipboard formats follow the model of setting
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// data on the data object only when the drop object calls GetData(),
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// I am leaving this format's value hard coded in the data object.
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// We can change this if other consumers of this format get added to this
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// codebase and they need different values.
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FORMATETC shortcutFE;
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SET_FORMATETC(shortcutFE,
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::RegisterClipboardFormat(CFSTR_PREFERREDDROPEFFECT), 0,
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DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kFilePromiseMime, &shortcutFE);
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}
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}
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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NS_IMETHODIMP nsClipboard::SetNativeClipboardData(int32_t aWhichClipboard) {
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if (aWhichClipboard != kGlobalClipboard) {
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return NS_ERROR_FAILURE;
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}
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mIgnoreEmptyNotification = true;
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// make sure we have a good transferable
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if (nullptr == mTransferable) {
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return NS_ERROR_FAILURE;
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}
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IDataObject* dataObj;
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if (NS_SUCCEEDED(CreateNativeDataObject(mTransferable, &dataObj,
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nullptr))) { // this add refs dataObj
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::OleSetClipboard(dataObj);
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dataObj->Release();
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} else {
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// Clear the native clipboard
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::OleSetClipboard(nullptr);
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}
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mIgnoreEmptyNotification = false;
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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nsresult nsClipboard::GetGlobalData(HGLOBAL aHGBL, void** aData,
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uint32_t* aLen) {
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// Allocate a new memory buffer and copy the data from global memory.
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// Recall that win98 allocates to nearest DWORD boundary. As a safety
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// precaution, allocate an extra 3 bytes (but don't report them in |aLen|!)
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// and null them out to ensure that all of our NS_strlen calls will succeed.
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// NS_strlen operates on char16_t, so we need 3 NUL bytes to ensure it finds
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// a full NUL char16_t when |*aLen| is odd.
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nsresult result = NS_ERROR_FAILURE;
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if (aHGBL != nullptr) {
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LPSTR lpStr = (LPSTR)GlobalLock(aHGBL);
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CheckedInt<uint32_t> allocSize =
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CheckedInt<uint32_t>(GlobalSize(aHGBL)) + 3;
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if (!allocSize.isValid()) {
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return NS_ERROR_INVALID_ARG;
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}
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char* data = static_cast<char*>(malloc(allocSize.value()));
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if (data) {
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uint32_t size = allocSize.value() - 3;
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memcpy(data, lpStr, size);
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// null terminate for safety
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data[size] = data[size + 1] = data[size + 2] = '\0';
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GlobalUnlock(aHGBL);
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*aData = data;
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*aLen = size;
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result = NS_OK;
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}
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} else {
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// We really shouldn't ever get here
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// but just in case
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*aData = nullptr;
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*aLen = 0;
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LPVOID lpMsgBuf;
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FormatMessageW(
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FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, nullptr,
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GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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(LPWSTR)&lpMsgBuf, 0, nullptr);
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// Display the string.
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MessageBoxW(nullptr, (LPCWSTR)lpMsgBuf, L"GetLastError",
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MB_OK | MB_ICONINFORMATION);
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// Free the buffer.
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LocalFree(lpMsgBuf);
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}
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return result;
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}
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//-------------------------------------------------------------------------
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nsresult nsClipboard::GetNativeDataOffClipboard(nsIWidget* aWidget,
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UINT /*aIndex*/, UINT aFormat,
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void** aData, uint32_t* aLen) {
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HGLOBAL hglb;
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nsresult result = NS_ERROR_FAILURE;
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HWND nativeWin = nullptr;
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if (::OpenClipboard(nativeWin)) {
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hglb = ::GetClipboardData(aFormat);
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result = GetGlobalData(hglb, aData, aLen);
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::CloseClipboard();
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}
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return result;
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}
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static void DisplayErrCode(HRESULT hres) {
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#if defined(DEBUG_rods) || defined(DEBUG_pinkerton)
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if (hres == E_INVALIDARG) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("E_INVALIDARG\n"));
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} else if (hres == E_UNEXPECTED) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("E_UNEXPECTED\n"));
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} else if (hres == E_OUTOFMEMORY) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("E_OUTOFMEMORY\n"));
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} else if (hres == DV_E_LINDEX) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("DV_E_LINDEX\n"));
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} else if (hres == DV_E_FORMATETC) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("DV_E_FORMATETC\n"));
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} else if (hres == DV_E_TYMED) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("DV_E_TYMED\n"));
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} else if (hres == DV_E_DVASPECT) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("DV_E_DVASPECT\n"));
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} else if (hres == OLE_E_NOTRUNNING) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("OLE_E_NOTRUNNING\n"));
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} else if (hres == STG_E_MEDIUMFULL) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("STG_E_MEDIUMFULL\n"));
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} else if (hres == DV_E_CLIPFORMAT) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("DV_E_CLIPFORMAT\n"));
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} else if (hres == S_OK) {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info, ("S_OK\n"));
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} else {
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MOZ_LOG(gWin32ClipboardLog, LogLevel::Info,
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("****** DisplayErrCode 0x%X\n", hres));
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}
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#endif
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}
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//-------------------------------------------------------------------------
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static HRESULT FillSTGMedium(IDataObject* aDataObject, UINT aFormat,
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LPFORMATETC pFE, LPSTGMEDIUM pSTM, DWORD aTymed) {
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SET_FORMATETC(*pFE, aFormat, 0, DVASPECT_CONTENT, -1, aTymed);
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// Starting by querying for the data to see if we can get it as from global
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// memory
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HRESULT hres = S_FALSE;
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hres = aDataObject->QueryGetData(pFE);
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DisplayErrCode(hres);
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if (S_OK == hres) {
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hres = aDataObject->GetData(pFE, pSTM);
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DisplayErrCode(hres);
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}
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return hres;
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}
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//-------------------------------------------------------------------------
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// If aFormat is CF_DIBV5, aMIMEImageFormat must be a type for which we have
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// an image encoder (e.g. image/png).
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// For other values of aFormat, it is OK to pass null for aMIMEImageFormat.
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nsresult nsClipboard::GetNativeDataOffClipboard(IDataObject* aDataObject,
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UINT aIndex, UINT aFormat,
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const char* aMIMEImageFormat,
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void** aData, uint32_t* aLen) {
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nsresult result = NS_ERROR_FAILURE;
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*aData = nullptr;
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*aLen = 0;
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|
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if (!aDataObject) {
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return result;
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}
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UINT format = aFormat;
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HRESULT hres = S_FALSE;
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// XXX at the moment we only support global memory transfers
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// It is here where we will add support for native images
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// and IStream
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FORMATETC fe;
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STGMEDIUM stm;
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hres = FillSTGMedium(aDataObject, format, &fe, &stm, TYMED_HGLOBAL);
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|
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// Currently this is only handling TYMED_HGLOBAL data
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// For Text, Dibs, Files, and generic data (like HTML)
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if (S_OK == hres) {
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static CLIPFORMAT fileDescriptorFlavorA =
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::RegisterClipboardFormat(CFSTR_FILEDESCRIPTORA);
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static CLIPFORMAT fileDescriptorFlavorW =
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::RegisterClipboardFormat(CFSTR_FILEDESCRIPTORW);
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static CLIPFORMAT fileFlavor =
|
|
::RegisterClipboardFormat(CFSTR_FILECONTENTS);
|
|
static CLIPFORMAT preferredDropEffect =
|
|
::RegisterClipboardFormat(CFSTR_PREFERREDDROPEFFECT);
|
|
|
|
switch (stm.tymed) {
|
|
case TYMED_HGLOBAL: {
|
|
switch (fe.cfFormat) {
|
|
case CF_TEXT: {
|
|
// Get the data out of the global data handle. The size we
|
|
// return should not include the null because the other
|
|
// platforms don't use nulls, so just return the length we get
|
|
// back from strlen(), since we know CF_TEXT is null
|
|
// terminated. Recall that GetGlobalData() returns the size of
|
|
// the allocated buffer, not the size of the data (on 98, these
|
|
// are not the same) so we can't use that.
|
|
uint32_t allocLen = 0;
|
|
if (NS_SUCCEEDED(GetGlobalData(stm.hGlobal, aData, &allocLen))) {
|
|
*aLen = strlen(reinterpret_cast<char*>(*aData));
|
|
result = NS_OK;
|
|
}
|
|
} break;
|
|
|
|
case CF_UNICODETEXT: {
|
|
// Get the data out of the global data handle. The size we
|
|
// return should not include the null because the other
|
|
// platforms don't use nulls, so just return the length we get
|
|
// back from strlen(), since we know CF_UNICODETEXT is null
|
|
// terminated. Recall that GetGlobalData() returns the size of
|
|
// the allocated buffer, not the size of the data (on 98, these
|
|
// are not the same) so we can't use that.
|
|
uint32_t allocLen = 0;
|
|
if (NS_SUCCEEDED(GetGlobalData(stm.hGlobal, aData, &allocLen))) {
|
|
*aLen = NS_strlen(reinterpret_cast<char16_t*>(*aData)) * 2;
|
|
result = NS_OK;
|
|
}
|
|
} break;
|
|
|
|
case CF_DIBV5:
|
|
if (aMIMEImageFormat) {
|
|
uint32_t allocLen = 0;
|
|
const char* clipboardData;
|
|
if (NS_SUCCEEDED(GetGlobalData(
|
|
stm.hGlobal, (void**)&clipboardData, &allocLen))) {
|
|
nsCOMPtr<imgIContainer> container;
|
|
nsCOMPtr<imgITools> imgTools =
|
|
do_CreateInstance("@mozilla.org/image/tools;1");
|
|
result = imgTools->DecodeImageFromBuffer(
|
|
clipboardData, allocLen,
|
|
NS_LITERAL_CSTRING(IMAGE_BMP_MS_CLIPBOARD),
|
|
getter_AddRefs(container));
|
|
if (NS_FAILED(result)) {
|
|
break;
|
|
}
|
|
|
|
nsAutoCString mimeType;
|
|
if (strcmp(aMIMEImageFormat, kJPGImageMime) == 0) {
|
|
mimeType.Assign(IMAGE_JPEG);
|
|
} else {
|
|
mimeType.Assign(aMIMEImageFormat);
|
|
}
|
|
|
|
nsCOMPtr<nsIInputStream> inputStream;
|
|
result =
|
|
imgTools->EncodeImage(container, mimeType, EmptyString(),
|
|
getter_AddRefs(inputStream));
|
|
if (NS_FAILED(result)) {
|
|
break;
|
|
}
|
|
|
|
if (!inputStream) {
|
|
result = NS_ERROR_FAILURE;
|
|
break;
|
|
}
|
|
|
|
*aData = inputStream.forget().take();
|
|
*aLen = sizeof(nsIInputStream*);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case CF_HDROP: {
|
|
// in the case of a file drop, multiple files are stashed within a
|
|
// single data object. In order to match mozilla's D&D apis, we
|
|
// just pull out the file at the requested index, pretending as
|
|
// if there really are multiple drag items.
|
|
HDROP dropFiles = (HDROP)GlobalLock(stm.hGlobal);
|
|
|
|
UINT numFiles = ::DragQueryFileW(dropFiles, 0xFFFFFFFF, nullptr, 0);
|
|
NS_ASSERTION(numFiles > 0,
|
|
"File drop flavor, but no files...hmmmm");
|
|
NS_ASSERTION(aIndex < numFiles,
|
|
"Asked for a file index out of range of list");
|
|
if (numFiles > 0) {
|
|
UINT fileNameLen =
|
|
::DragQueryFileW(dropFiles, aIndex, nullptr, 0);
|
|
wchar_t* buffer = reinterpret_cast<wchar_t*>(
|
|
moz_xmalloc((fileNameLen + 1) * sizeof(wchar_t)));
|
|
::DragQueryFileW(dropFiles, aIndex, buffer, fileNameLen + 1);
|
|
*aData = buffer;
|
|
*aLen = fileNameLen * sizeof(char16_t);
|
|
result = NS_OK;
|
|
}
|
|
GlobalUnlock(stm.hGlobal);
|
|
|
|
} break;
|
|
|
|
default: {
|
|
if (fe.cfFormat == fileDescriptorFlavorA ||
|
|
fe.cfFormat == fileDescriptorFlavorW ||
|
|
fe.cfFormat == fileFlavor) {
|
|
NS_WARNING(
|
|
"Mozilla doesn't yet understand how to read this type of "
|
|
"file flavor");
|
|
} else {
|
|
// Get the data out of the global data handle. The size we
|
|
// return should not include the null because the other
|
|
// platforms don't use nulls, so just return the length we get
|
|
// back from strlen(), since we know CF_UNICODETEXT is null
|
|
// terminated. Recall that GetGlobalData() returns the size of
|
|
// the allocated buffer, not the size of the data (on 98, these
|
|
// are not the same) so we can't use that.
|
|
//
|
|
// NOTE: we are assuming that anything that falls into this
|
|
// default case is unicode. As we start to get more
|
|
// kinds of binary data, this may become an incorrect
|
|
// assumption. Stay tuned.
|
|
uint32_t allocLen = 0;
|
|
if (NS_SUCCEEDED(GetGlobalData(stm.hGlobal, aData, &allocLen))) {
|
|
if (fe.cfFormat == CF_HTML) {
|
|
// CF_HTML is actually UTF8, not unicode, so disregard the
|
|
// assumption above. We have to check the header for the
|
|
// actual length, and we'll do that in FindPlatformHTML().
|
|
// For now, return the allocLen. This case is mostly to
|
|
// ensure we don't try to call strlen on the buffer.
|
|
*aLen = allocLen;
|
|
} else if (fe.cfFormat == CF_CUSTOMTYPES) {
|
|
// Binary data
|
|
*aLen = allocLen;
|
|
} else if (fe.cfFormat == preferredDropEffect) {
|
|
// As per the MSDN doc entitled: "Shell Clipboard Formats"
|
|
// CFSTR_PREFERREDDROPEFFECT should return a DWORD
|
|
// Reference:
|
|
// http://msdn.microsoft.com/en-us/library/bb776902(v=vs.85).aspx
|
|
NS_ASSERTION(
|
|
allocLen == sizeof(DWORD),
|
|
"CFSTR_PREFERREDDROPEFFECT should return a DWORD");
|
|
*aLen = allocLen;
|
|
} else {
|
|
*aLen = NS_strlen(reinterpret_cast<char16_t*>(*aData)) *
|
|
sizeof(char16_t);
|
|
}
|
|
result = NS_OK;
|
|
}
|
|
}
|
|
} break;
|
|
} // switch
|
|
} break;
|
|
|
|
case TYMED_GDI: {
|
|
#ifdef DEBUG
|
|
MOZ_LOG(gWin32ClipboardLog, LogLevel::Info,
|
|
("*********************** TYMED_GDI\n"));
|
|
#endif
|
|
} break;
|
|
|
|
default:
|
|
break;
|
|
} // switch
|
|
|
|
ReleaseStgMedium(&stm);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
nsresult nsClipboard::GetDataFromDataObject(IDataObject* aDataObject,
|
|
UINT anIndex, nsIWidget* aWindow,
|
|
nsITransferable* aTransferable) {
|
|
// make sure we have a good transferable
|
|
if (!aTransferable) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
nsresult res = NS_ERROR_FAILURE;
|
|
|
|
// get flavor list that includes all flavors that can be written (including
|
|
// ones obtained through conversion)
|
|
nsTArray<nsCString> flavors;
|
|
res = aTransferable->FlavorsTransferableCanImport(flavors);
|
|
if (NS_FAILED(res)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Walk through flavors and see which flavor is on the clipboard them on the
|
|
// native clipboard,
|
|
for (uint32_t i = 0; i < flavors.Length(); i++) {
|
|
nsCString& flavorStr = flavors[i];
|
|
UINT format = GetFormat(flavorStr.get());
|
|
|
|
// Try to get the data using the desired flavor. This might fail, but all is
|
|
// not lost.
|
|
void* data = nullptr;
|
|
uint32_t dataLen = 0;
|
|
bool dataFound = false;
|
|
if (nullptr != aDataObject) {
|
|
if (NS_SUCCEEDED(GetNativeDataOffClipboard(aDataObject, anIndex, format,
|
|
flavorStr.get(), &data,
|
|
&dataLen))) {
|
|
dataFound = true;
|
|
}
|
|
} else if (nullptr != aWindow) {
|
|
if (NS_SUCCEEDED(GetNativeDataOffClipboard(aWindow, anIndex, format,
|
|
&data, &dataLen))) {
|
|
dataFound = true;
|
|
}
|
|
}
|
|
|
|
// This is our second chance to try to find some data, having not found it
|
|
// when directly asking for the flavor. Let's try digging around in other
|
|
// flavors to help satisfy our craving for data.
|
|
if (!dataFound) {
|
|
if (flavorStr.EqualsLiteral(kUnicodeMime)) {
|
|
dataFound =
|
|
FindUnicodeFromPlainText(aDataObject, anIndex, &data, &dataLen);
|
|
} else if (flavorStr.EqualsLiteral(kURLMime)) {
|
|
// drags from other windows apps expose the native
|
|
// CFSTR_INETURL{A,W} flavor
|
|
dataFound = FindURLFromNativeURL(aDataObject, anIndex, &data, &dataLen);
|
|
if (!dataFound) {
|
|
dataFound =
|
|
FindURLFromLocalFile(aDataObject, anIndex, &data, &dataLen);
|
|
}
|
|
}
|
|
} // if we try one last ditch effort to find our data
|
|
|
|
// Hopefully by this point we've found it and can go about our business
|
|
if (dataFound) {
|
|
nsCOMPtr<nsISupports> genericDataWrapper;
|
|
if (flavorStr.EqualsLiteral(kFileMime)) {
|
|
// we have a file path in |data|. Create an nsLocalFile object.
|
|
nsDependentString filepath(reinterpret_cast<char16_t*>(data));
|
|
nsCOMPtr<nsIFile> file;
|
|
if (NS_SUCCEEDED(
|
|
NS_NewLocalFile(filepath, false, getter_AddRefs(file)))) {
|
|
genericDataWrapper = do_QueryInterface(file);
|
|
}
|
|
free(data);
|
|
} else if (flavorStr.EqualsLiteral(kNativeHTMLMime)) {
|
|
uint32_t dummy;
|
|
// the editor folks want CF_HTML exactly as it's on the clipboard, no
|
|
// conversions, no fancy stuff. Pull it off the clipboard, stuff it into
|
|
// a wrapper and hand it back to them.
|
|
if (FindPlatformHTML(aDataObject, anIndex, &data, &dummy, &dataLen)) {
|
|
nsPrimitiveHelpers::CreatePrimitiveForData(
|
|
flavorStr, data, dataLen, getter_AddRefs(genericDataWrapper));
|
|
} else {
|
|
free(data);
|
|
continue; // something wrong with this flavor, keep looking for other
|
|
// data
|
|
}
|
|
free(data);
|
|
} else if (flavorStr.EqualsLiteral(kHTMLMime)) {
|
|
uint32_t startOfData = 0;
|
|
// The JS folks want CF_HTML exactly as it is on the clipboard, but
|
|
// minus the CF_HTML header index information.
|
|
// It also needs to be converted to UTF16 and have linebreaks changed.
|
|
if (FindPlatformHTML(aDataObject, anIndex, &data, &startOfData,
|
|
&dataLen)) {
|
|
dataLen -= startOfData;
|
|
nsPrimitiveHelpers::CreatePrimitiveForCFHTML(
|
|
static_cast<char*>(data) + startOfData, &dataLen,
|
|
getter_AddRefs(genericDataWrapper));
|
|
} else {
|
|
free(data);
|
|
continue; // something wrong with this flavor, keep looking for other
|
|
// data
|
|
}
|
|
free(data);
|
|
} else if (flavorStr.EqualsLiteral(kJPEGImageMime) ||
|
|
flavorStr.EqualsLiteral(kJPGImageMime) ||
|
|
flavorStr.EqualsLiteral(kPNGImageMime)) {
|
|
nsIInputStream* imageStream = reinterpret_cast<nsIInputStream*>(data);
|
|
genericDataWrapper = do_QueryInterface(imageStream);
|
|
NS_IF_RELEASE(imageStream);
|
|
} else {
|
|
// Treat custom types as a string of bytes.
|
|
if (!flavorStr.EqualsLiteral(kCustomTypesMime)) {
|
|
// we probably have some form of text. The DOM only wants LF, so
|
|
// convert from Win32 line endings to DOM line endings.
|
|
int32_t signedLen = static_cast<int32_t>(dataLen);
|
|
nsLinebreakHelpers::ConvertPlatformToDOMLinebreaks(flavorStr, &data,
|
|
&signedLen);
|
|
dataLen = signedLen;
|
|
|
|
if (flavorStr.EqualsLiteral(kRTFMime)) {
|
|
// RTF on Windows is known to sometimes deliver an extra null byte.
|
|
if (dataLen > 0 && static_cast<char*>(data)[dataLen - 1] == '\0') {
|
|
dataLen--;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsPrimitiveHelpers::CreatePrimitiveForData(
|
|
flavorStr, data, dataLen, getter_AddRefs(genericDataWrapper));
|
|
free(data);
|
|
}
|
|
|
|
NS_ASSERTION(genericDataWrapper,
|
|
"About to put null data into the transferable");
|
|
aTransferable->SetTransferData(flavorStr.get(), genericDataWrapper);
|
|
res = NS_OK;
|
|
|
|
// we found one, get out of the loop
|
|
break;
|
|
}
|
|
} // foreach flavor
|
|
|
|
return res;
|
|
}
|
|
|
|
//
|
|
// FindPlatformHTML
|
|
//
|
|
// Someone asked for the OS CF_HTML flavor. We give it back to them exactly
|
|
// as-is.
|
|
//
|
|
bool nsClipboard ::FindPlatformHTML(IDataObject* inDataObject, UINT inIndex,
|
|
void** outData, uint32_t* outStartOfData,
|
|
uint32_t* outDataLen) {
|
|
// Reference: MSDN doc entitled "HTML Clipboard Format"
|
|
// http://msdn.microsoft.com/en-us/library/aa767917(VS.85).aspx#unknown_854
|
|
// CF_HTML is UTF8, not unicode. We also can't rely on it being
|
|
// null-terminated so we have to check the CF_HTML header for the correct
|
|
// length. The length we return is the bytecount from the beginning of the
|
|
// selected data to the end of the selected data, without the null
|
|
// termination. Because it's UTF8, we're guaranteed the header is ASCII.
|
|
|
|
if (!outData || !*outData) {
|
|
return false;
|
|
}
|
|
|
|
char version[8] = {0};
|
|
int32_t startOfData = 0;
|
|
int32_t endOfData = 0;
|
|
int numFound =
|
|
sscanf((char*)*outData, "Version:%7s\nStartHTML:%d\nEndHTML:%d", version,
|
|
&startOfData, &endOfData);
|
|
|
|
if (numFound != 3 || startOfData < -1 || endOfData < -1) {
|
|
return false;
|
|
}
|
|
|
|
// Fixup the start and end markers if they have no context (set to -1)
|
|
if (startOfData == -1) {
|
|
startOfData = 0;
|
|
}
|
|
if (endOfData == -1) {
|
|
endOfData = *outDataLen;
|
|
}
|
|
|
|
// Make sure we were passed sane values within our buffer size.
|
|
// (Note that we've handled all cases of negative endOfData above, so we can
|
|
// safely cast it to be unsigned here.)
|
|
if (!endOfData || startOfData >= endOfData ||
|
|
static_cast<uint32_t>(endOfData) > *outDataLen) {
|
|
return false;
|
|
}
|
|
|
|
// We want to return the buffer not offset by startOfData because it will be
|
|
// parsed out later (probably by HTMLEditor::ParseCFHTML) when it is still
|
|
// in CF_HTML format.
|
|
|
|
// We return the byte offset from the start of the data buffer to where the
|
|
// HTML data starts. The caller might want to extract the HTML only.
|
|
*outStartOfData = startOfData;
|
|
*outDataLen = endOfData;
|
|
return true;
|
|
}
|
|
|
|
//
|
|
// FindUnicodeFromPlainText
|
|
//
|
|
// we are looking for text/unicode and we failed to find it on the clipboard
|
|
// first, try again with text/plain. If that is present, convert it to unicode.
|
|
//
|
|
bool nsClipboard ::FindUnicodeFromPlainText(IDataObject* inDataObject,
|
|
UINT inIndex, void** outData,
|
|
uint32_t* outDataLen) {
|
|
// we are looking for text/unicode and we failed to find it on the clipboard
|
|
// first, try again with text/plain. If that is present, convert it to
|
|
// unicode.
|
|
nsresult rv =
|
|
GetNativeDataOffClipboard(inDataObject, inIndex, GetFormat(kTextMime),
|
|
nullptr, outData, outDataLen);
|
|
if (NS_FAILED(rv) || !*outData) {
|
|
return false;
|
|
}
|
|
|
|
const char* castedText = static_cast<char*>(*outData);
|
|
nsAutoString tmp;
|
|
rv = NS_CopyNativeToUnicode(nsDependentCSubstring(castedText, *outDataLen),
|
|
tmp);
|
|
if (NS_FAILED(rv)) {
|
|
return false;
|
|
}
|
|
|
|
// out with the old, in with the new
|
|
free(*outData);
|
|
*outData = ToNewUnicode(tmp);
|
|
*outDataLen = tmp.Length() * sizeof(char16_t);
|
|
|
|
return true;
|
|
|
|
} // FindUnicodeFromPlainText
|
|
|
|
//
|
|
// FindURLFromLocalFile
|
|
//
|
|
// we are looking for a URL and couldn't find it, try again with looking for
|
|
// a local file. If we have one, it may either be a normal file or an internet
|
|
// shortcut. In both cases, however, we can get a URL (it will be a file:// url
|
|
// in the local file case).
|
|
//
|
|
bool nsClipboard ::FindURLFromLocalFile(IDataObject* inDataObject, UINT inIndex,
|
|
void** outData, uint32_t* outDataLen) {
|
|
bool dataFound = false;
|
|
|
|
nsresult loadResult =
|
|
GetNativeDataOffClipboard(inDataObject, inIndex, GetFormat(kFileMime),
|
|
nullptr, outData, outDataLen);
|
|
if (NS_SUCCEEDED(loadResult) && *outData) {
|
|
// we have a file path in |data|. Is it an internet shortcut or a normal
|
|
// file?
|
|
const nsDependentString filepath(static_cast<char16_t*>(*outData));
|
|
nsCOMPtr<nsIFile> file;
|
|
nsresult rv = NS_NewLocalFile(filepath, true, getter_AddRefs(file));
|
|
if (NS_FAILED(rv)) {
|
|
free(*outData);
|
|
return dataFound;
|
|
}
|
|
|
|
if (IsInternetShortcut(filepath)) {
|
|
free(*outData);
|
|
nsAutoCString url;
|
|
ResolveShortcut(file, url);
|
|
if (!url.IsEmpty()) {
|
|
// convert it to unicode and pass it out
|
|
NS_ConvertUTF8toUTF16 urlString(url);
|
|
// the internal mozilla URL format, text/x-moz-url, contains
|
|
// URL\ntitle. We can guess the title from the file's name.
|
|
nsAutoString title;
|
|
file->GetLeafName(title);
|
|
// We rely on IsInternetShortcut check that file has a .url extension.
|
|
title.SetLength(title.Length() - 4);
|
|
if (title.IsEmpty()) {
|
|
title = urlString;
|
|
}
|
|
*outData = ToNewUnicode(urlString + NS_LITERAL_STRING("\n") + title);
|
|
*outDataLen =
|
|
NS_strlen(static_cast<char16_t*>(*outData)) * sizeof(char16_t);
|
|
|
|
dataFound = true;
|
|
}
|
|
} else {
|
|
// we have a normal file, use some Necko objects to get our file path
|
|
nsAutoCString urlSpec;
|
|
NS_GetURLSpecFromFile(file, urlSpec);
|
|
|
|
// convert it to unicode and pass it out
|
|
free(*outData);
|
|
*outData = UTF8ToNewUnicode(urlSpec);
|
|
*outDataLen =
|
|
NS_strlen(static_cast<char16_t*>(*outData)) * sizeof(char16_t);
|
|
dataFound = true;
|
|
} // else regular file
|
|
}
|
|
|
|
return dataFound;
|
|
} // FindURLFromLocalFile
|
|
|
|
//
|
|
// FindURLFromNativeURL
|
|
//
|
|
// we are looking for a URL and couldn't find it using our internal
|
|
// URL flavor, so look for it using the native URL flavor,
|
|
// CF_INETURLSTRW (We don't handle CF_INETURLSTRA currently)
|
|
//
|
|
bool nsClipboard ::FindURLFromNativeURL(IDataObject* inDataObject, UINT inIndex,
|
|
void** outData, uint32_t* outDataLen) {
|
|
bool dataFound = false;
|
|
|
|
void* tempOutData = nullptr;
|
|
uint32_t tempDataLen = 0;
|
|
|
|
nsresult loadResult = GetNativeDataOffClipboard(
|
|
inDataObject, inIndex, ::RegisterClipboardFormat(CFSTR_INETURLW), nullptr,
|
|
&tempOutData, &tempDataLen);
|
|
if (NS_SUCCEEDED(loadResult) && tempOutData) {
|
|
nsDependentString urlString(static_cast<char16_t*>(tempOutData));
|
|
// the internal mozilla URL format, text/x-moz-url, contains
|
|
// URL\ntitle. Since we don't actually have a title here,
|
|
// just repeat the URL to fake it.
|
|
*outData = ToNewUnicode(urlString + NS_LITERAL_STRING("\n") + urlString);
|
|
*outDataLen =
|
|
NS_strlen(static_cast<char16_t*>(*outData)) * sizeof(char16_t);
|
|
free(tempOutData);
|
|
dataFound = true;
|
|
} else {
|
|
loadResult = GetNativeDataOffClipboard(
|
|
inDataObject, inIndex, ::RegisterClipboardFormat(CFSTR_INETURLA),
|
|
nullptr, &tempOutData, &tempDataLen);
|
|
if (NS_SUCCEEDED(loadResult) && tempOutData) {
|
|
// CFSTR_INETURLA is (currently) equal to CFSTR_SHELLURL which is equal to
|
|
// CF_TEXT which is by definition ANSI encoded.
|
|
nsCString urlUnescapedA;
|
|
bool unescaped =
|
|
NS_UnescapeURL(static_cast<char*>(tempOutData), tempDataLen,
|
|
esc_OnlyNonASCII | esc_SkipControl, urlUnescapedA);
|
|
|
|
nsString urlString;
|
|
if (unescaped) {
|
|
NS_CopyNativeToUnicode(urlUnescapedA, urlString);
|
|
} else {
|
|
NS_CopyNativeToUnicode(
|
|
nsDependentCString(static_cast<char*>(tempOutData), tempDataLen),
|
|
urlString);
|
|
}
|
|
|
|
// the internal mozilla URL format, text/x-moz-url, contains
|
|
// URL\ntitle. Since we don't actually have a title here,
|
|
// just repeat the URL to fake it.
|
|
*outData = ToNewUnicode(urlString + NS_LITERAL_STRING("\n") + urlString);
|
|
*outDataLen =
|
|
NS_strlen(static_cast<char16_t*>(*outData)) * sizeof(char16_t);
|
|
free(tempOutData);
|
|
dataFound = true;
|
|
}
|
|
}
|
|
|
|
return dataFound;
|
|
} // FindURLFromNativeURL
|
|
|
|
//
|
|
// ResolveShortcut
|
|
//
|
|
void nsClipboard ::ResolveShortcut(nsIFile* aFile, nsACString& outURL) {
|
|
nsCOMPtr<nsIFileProtocolHandler> fph;
|
|
nsresult rv = NS_GetFileProtocolHandler(getter_AddRefs(fph));
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
rv = fph->ReadURLFile(aFile, getter_AddRefs(uri));
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
uri->GetSpec(outURL);
|
|
} // ResolveShortcut
|
|
|
|
//
|
|
// IsInternetShortcut
|
|
//
|
|
// A file is an Internet Shortcut if it ends with .URL
|
|
//
|
|
bool nsClipboard ::IsInternetShortcut(const nsAString& inFileName) {
|
|
return StringEndsWith(inFileName, NS_LITERAL_STRING(".url"),
|
|
nsCaseInsensitiveStringComparator());
|
|
} // IsInternetShortcut
|
|
|
|
//-------------------------------------------------------------------------
|
|
NS_IMETHODIMP
|
|
nsClipboard::GetNativeClipboardData(nsITransferable* aTransferable,
|
|
int32_t aWhichClipboard) {
|
|
// make sure we have a good transferable
|
|
if (!aTransferable || aWhichClipboard != kGlobalClipboard) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult res;
|
|
|
|
// This makes sure we can use the OLE functionality for the clipboard
|
|
IDataObject* dataObj;
|
|
if (S_OK == ::OleGetClipboard(&dataObj)) {
|
|
// Use OLE IDataObject for clipboard operations
|
|
res = GetDataFromDataObject(dataObj, 0, nullptr, aTransferable);
|
|
dataObj->Release();
|
|
} else {
|
|
// do it the old manual way
|
|
res = GetDataFromDataObject(nullptr, 0, mWindow, aTransferable);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsClipboard::EmptyClipboard(int32_t aWhichClipboard) {
|
|
// Some programs such as ZoneAlarm monitor clipboard usage and then open the
|
|
// clipboard to scan it. If we i) empty and then ii) set data, then the
|
|
// 'set data' can sometimes fail with access denied becacuse another program
|
|
// has the clipboard open. So to avoid this race condition for OpenClipboard
|
|
// we do not empty the clipboard when we're setting it.
|
|
if (aWhichClipboard == kGlobalClipboard && !mEmptyingForSetData) {
|
|
OleSetClipboard(nullptr);
|
|
}
|
|
return nsBaseClipboard::EmptyClipboard(aWhichClipboard);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
NS_IMETHODIMP nsClipboard::HasDataMatchingFlavors(
|
|
const nsTArray<nsCString>& aFlavorList, int32_t aWhichClipboard,
|
|
bool* _retval) {
|
|
*_retval = false;
|
|
if (aWhichClipboard != kGlobalClipboard) {
|
|
return NS_OK;
|
|
}
|
|
|
|
for (auto& flavor : aFlavorList) {
|
|
#ifdef DEBUG
|
|
if (flavor.EqualsLiteral(kTextMime)) {
|
|
NS_WARNING(
|
|
"DO NOT USE THE text/plain DATA FLAVOR ANY MORE. USE text/unicode "
|
|
"INSTEAD");
|
|
}
|
|
#endif
|
|
|
|
UINT format = GetFormat(flavor.get());
|
|
if (IsClipboardFormatAvailable(format)) {
|
|
*_retval = true;
|
|
break;
|
|
} else {
|
|
// We haven't found the exact flavor the client asked for, but maybe we
|
|
// can still find it from something else that's on the clipboard...
|
|
if (flavor.EqualsLiteral(kUnicodeMime)) {
|
|
// client asked for unicode and it wasn't present, check if we have
|
|
// CF_TEXT. We'll handle the actual data substitution in the data
|
|
// object.
|
|
if (IsClipboardFormatAvailable(GetFormat(kTextMime))) {
|
|
*_retval = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|