89becff57d
Backed out changeset d68dcf2ef372 (bug 1165515) Backed out changeset 7c3b45a47811 (bug 1165515) Backed out changeset b668b617bef2 (bug 1165515) Backed out changeset d0916e1283a2 (bug 1165515) Backed out changeset ac4dc7489942 (bug 1165515) Backed out changeset e9632ce8bc65 (bug 1165515) Backed out changeset c16d215cc7e4 (bug 1165515) Backed out changeset e4d474f3c51a (bug 1165515) Backed out changeset d87680bf9f7c (bug 1165515) Backed out changeset b3c0a45ba99e (bug 1165515) Backed out changeset 9370fa197674 (bug 1165515) Backed out changeset 50970d668ca1 (bug 1165515) Backed out changeset ffa4eb6d24b9 (bug 1165515) Backed out changeset 5fcf1203cc1d (bug 1165515)
993 lines
37 KiB
C++
993 lines
37 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 "nsCOMPtr.h"
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#include "nsDataObj.h"
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#include "nsIClipboardOwner.h"
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#include "nsString.h"
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#include "nsNativeCharsetUtils.h"
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#include "nsIFormatConverter.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 "nsISupportsPrimitives.h"
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#include "nsXPIDLString.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 "nsImageClipboard.h"
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#include "nsIWidget.h"
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#include "nsIComponentManager.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 "nsEscape.h"
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#include "nsIObserverService.h"
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PRLogModuleInfo* gWin32ClipboardLog = nullptr;
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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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//-------------------------------------------------------------------------
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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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{
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if (!gWin32ClipboardLog) {
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gWin32ClipboardLog = PR_NewLogModule("nsClipboard");
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}
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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_SHUTDOWN_OBSERVER_ID, PR_FALSE);
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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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{
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}
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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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{
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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)
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{
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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, 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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format = CF_HTML;
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else
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format = ::RegisterClipboardFormatW(NS_ConvertASCIItoUTF16(aMimeStr).get());
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return format;
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}
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//-------------------------------------------------------------------------
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nsresult nsClipboard::CreateNativeDataObject(nsITransferable * aTransferable, IDataObject ** aDataObj, nsIURI * uri)
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{
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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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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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delete dataObj;
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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, IDataObject * aDataObj)
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{
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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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nsCOMPtr<nsISupportsArray> dfList;
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aTransferable->FlavorsTransferableCanExport(getter_AddRefs(dfList));
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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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uint32_t i;
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uint32_t cnt;
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dfList->Count(&cnt);
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for (i=0;i<cnt;i++) {
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nsCOMPtr<nsISupports> genericFlavor;
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dfList->GetElementAt ( i, getter_AddRefs(genericFlavor) );
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nsCOMPtr<nsISupportsCString> currentFlavor ( do_QueryInterface(genericFlavor) );
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if ( currentFlavor ) {
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nsXPIDLCString flavorStr;
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currentFlavor->ToString(getter_Copies(flavorStr));
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UINT format = GetFormat(flavorStr);
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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, &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 ( strcmp(flavorStr, kUnicodeMime) == 0 ) {
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// if we find text/unicode, also advertise text/plain (which we will convert
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// 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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}
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else if ( strcmp(flavorStr, kHTMLMime) == 0 ) {
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// if we find text/html, also advertise win32's html flavor (which we will convert
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// 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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}
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else if ( strcmp(flavorStr, kURLMime) == 0 ) {
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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, ::RegisterClipboardFormat(CFSTR_FILEDESCRIPTORA), 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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SET_FORMATETC(shortcutFE, ::RegisterClipboardFormat(CFSTR_FILEDESCRIPTORW), 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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SET_FORMATETC(shortcutFE, ::RegisterClipboardFormat(CFSTR_FILECONTENTS), 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, DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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SET_FORMATETC(shortcutFE, ::RegisterClipboardFormat(CFSTR_INETURLW), 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL)
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dObj->AddDataFlavor(kURLMime, &shortcutFE);
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}
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else if ( strcmp(flavorStr, kPNGImageMime) == 0 || strcmp(flavorStr, kJPEGImageMime) == 0 ||
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strcmp(flavorStr, kJPGImageMime) == 0 || strcmp(flavorStr, kGIFImageMime) == 0 ||
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strcmp(flavorStr, kNativeImageMime) == 0 ) {
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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, &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, &imageFE);
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}
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else if ( strcmp(flavorStr, kFilePromiseMime) == 0 ) {
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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, ::RegisterClipboardFormat(CFSTR_PREFERREDDROPEFFECT), 0, 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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}
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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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{
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if ( aWhichClipboard != kGlobalClipboard )
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return NS_ERROR_FAILURE;
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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, 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, uint32_t * aLen)
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{
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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 2 bytes (but don't report them!) and
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// null them out to ensure that all of our strlen calls will succeed.
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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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DWORD allocSize = GlobalSize(aHGBL);
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char* data = static_cast<char*>(moz_xmalloc(allocSize + sizeof(char16_t)));
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if ( data ) {
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memcpy ( data, lpStr, allocSize );
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data[allocSize] = data[allocSize + 1] = '\0'; // null terminate for safety
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GlobalUnlock(aHGBL);
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*aData = data;
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*aLen = allocSize;
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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,
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nullptr,
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GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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(LPWSTR) &lpMsgBuf,
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0,
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nullptr
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);
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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, UINT /*aIndex*/, UINT aFormat, void ** aData, uint32_t * aLen)
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{
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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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{
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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, PR_LOG_ALWAYS, ("E_INVALIDARG\n"));
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} else
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if (hres == E_UNEXPECTED) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("E_UNEXPECTED\n"));
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} else
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if (hres == E_OUTOFMEMORY) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("E_OUTOFMEMORY\n"));
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} else
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if (hres == DV_E_LINDEX ) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("DV_E_LINDEX\n"));
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} else
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if (hres == DV_E_FORMATETC) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("DV_E_FORMATETC\n"));
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} else
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if (hres == DV_E_TYMED) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("DV_E_TYMED\n"));
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} else
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if (hres == DV_E_DVASPECT) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("DV_E_DVASPECT\n"));
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} else
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if (hres == OLE_E_NOTRUNNING) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("OLE_E_NOTRUNNING\n"));
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} else
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if (hres == STG_E_MEDIUMFULL) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("STG_E_MEDIUMFULL\n"));
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} else
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if (hres == DV_E_CLIPFORMAT) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("DV_E_CLIPFORMAT\n"));
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} else
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if (hres == S_OK) {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS, ("S_OK\n"));
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} else {
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MOZ_LOG(gWin32ClipboardLog, PR_LOG_ALWAYS,
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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, LPFORMATETC pFE, LPSTGMEDIUM pSTM, DWORD aTymed)
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{
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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 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, UINT aIndex, UINT aFormat, const char * aMIMEImageFormat, void ** aData, uint32_t * aLen)
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{
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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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if ( !aDataObject )
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return result;
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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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// 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 = ::RegisterClipboardFormat( CFSTR_FILEDESCRIPTORA );
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static CLIPFORMAT fileDescriptorFlavorW = ::RegisterClipboardFormat( CFSTR_FILEDESCRIPTORW );
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static CLIPFORMAT fileFlavor = ::RegisterClipboardFormat( CFSTR_FILECONTENTS );
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static CLIPFORMAT preferredDropEffect = ::RegisterClipboardFormat(CFSTR_PREFERREDDROPEFFECT);
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switch (stm.tymed) {
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case TYMED_HGLOBAL:
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{
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switch (fe.cfFormat) {
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case CF_TEXT:
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{
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// Get the data out of the global data handle. The size we return
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// should not include the null because the other platforms don't
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// use nulls, so just return the length we get back from strlen(),
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// since we know CF_TEXT is null terminated. Recall that GetGlobalData()
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// returns the size of the allocated buffer, not the size of the data
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// (on 98, these are not the same) so we can't use that.
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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;
|
|
unsigned char * clipboardData;
|
|
if (NS_SUCCEEDED(GetGlobalData(stm.hGlobal, (void **)&clipboardData, &allocLen)))
|
|
{
|
|
nsImageFromClipboard converter;
|
|
nsIInputStream * inputStream;
|
|
converter.GetEncodedImageStream(clipboardData, aMIMEImageFormat, &inputStream); // addrefs for us, don't release
|
|
if ( inputStream ) {
|
|
*aData = inputStream;
|
|
*aLen = sizeof(nsIInputStream*);
|
|
result = NS_OK;
|
|
}
|
|
}
|
|
} 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)));
|
|
if ( buffer ) {
|
|
::DragQueryFileW(dropFiles, aIndex, buffer, fileNameLen + 1);
|
|
*aData = buffer;
|
|
*aLen = fileNameLen * sizeof(char16_t);
|
|
result = NS_OK;
|
|
}
|
|
else
|
|
result = NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
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 == 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, PR_LOG_ALWAYS,
|
|
("*********************** 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)
|
|
nsCOMPtr<nsISupportsArray> flavorList;
|
|
res = aTransferable->FlavorsTransferableCanImport ( getter_AddRefs(flavorList) );
|
|
if ( NS_FAILED(res) )
|
|
return NS_ERROR_FAILURE;
|
|
|
|
// Walk through flavors and see which flavor is on the clipboard them on the native clipboard,
|
|
uint32_t i;
|
|
uint32_t cnt;
|
|
flavorList->Count(&cnt);
|
|
for (i=0;i<cnt;i++) {
|
|
nsCOMPtr<nsISupports> genericFlavor;
|
|
flavorList->GetElementAt ( i, getter_AddRefs(genericFlavor) );
|
|
nsCOMPtr<nsISupportsCString> currentFlavor ( do_QueryInterface(genericFlavor) );
|
|
if ( currentFlavor ) {
|
|
nsXPIDLCString flavorStr;
|
|
currentFlavor->ToString(getter_Copies(flavorStr));
|
|
UINT format = GetFormat(flavorStr);
|
|
|
|
// 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, &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 ( strcmp(flavorStr, kUnicodeMime) == 0 )
|
|
dataFound = FindUnicodeFromPlainText ( aDataObject, anIndex, &data, &dataLen );
|
|
else if ( strcmp(flavorStr, kURLMime) == 0 ) {
|
|
// 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 ( strcmp(flavorStr, kFileMime) == 0 ) {
|
|
// 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 ( strcmp(flavorStr, kNativeHTMLMime) == 0) {
|
|
// 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, &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 ( strcmp(flavorStr, kJPEGImageMime) == 0 ||
|
|
strcmp(flavorStr, kJPGImageMime) == 0 ||
|
|
strcmp(flavorStr, kPNGImageMime) == 0) {
|
|
nsIInputStream * imageStream = reinterpret_cast<nsIInputStream*>(data);
|
|
genericDataWrapper = do_QueryInterface(imageStream);
|
|
NS_IF_RELEASE(imageStream);
|
|
}
|
|
else {
|
|
// 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;
|
|
|
|
nsPrimitiveHelpers::CreatePrimitiveForData ( flavorStr, data, dataLen, getter_AddRefs(genericDataWrapper) );
|
|
free(data);
|
|
}
|
|
|
|
NS_ASSERTION ( genericDataWrapper, "About to put null data into the transferable" );
|
|
aTransferable->SetTransferData(flavorStr, genericDataWrapper, dataLen);
|
|
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* 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 nsHTMLEditor::ParseCFHTML) when it is still
|
|
// in CF_HTML format.
|
|
*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 )
|
|
{
|
|
bool dataFound = false;
|
|
|
|
// 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 loadResult = GetNativeDataOffClipboard(inDataObject, inIndex, GetFormat(kTextMime), nullptr, outData, outDataLen);
|
|
if ( NS_SUCCEEDED(loadResult) && *outData ) {
|
|
const char* castedText = reinterpret_cast<char*>(*outData);
|
|
char16_t* convertedText = nullptr;
|
|
int32_t convertedTextLen = 0;
|
|
nsPrimitiveHelpers::ConvertPlatformPlainTextToUnicode ( castedText, *outDataLen,
|
|
&convertedText, &convertedTextLen );
|
|
if ( convertedText ) {
|
|
// out with the old, in with the new
|
|
free(*outData);
|
|
*outData = convertedText;
|
|
*outDataLen = convertedTextLen * sizeof(char16_t);
|
|
dataFound = true;
|
|
}
|
|
} // if plain text data on clipboard
|
|
|
|
return dataFound;
|
|
|
|
} // 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
|
|
nsDependentString urlString(UTF8ToNewUnicode(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 char** aFlavorList,
|
|
uint32_t aLength,
|
|
int32_t aWhichClipboard,
|
|
bool *_retval)
|
|
{
|
|
*_retval = false;
|
|
if (aWhichClipboard != kGlobalClipboard || !aFlavorList)
|
|
return NS_OK;
|
|
|
|
for (uint32_t i = 0;i < aLength; ++i) {
|
|
#ifdef DEBUG
|
|
if (strcmp(aFlavorList[i], kTextMime) == 0)
|
|
NS_WARNING ( "DO NOT USE THE text/plain DATA FLAVOR ANY MORE. USE text/unicode INSTEAD" );
|
|
#endif
|
|
|
|
UINT format = GetFormat(aFlavorList[i]);
|
|
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 (strcmp(aFlavorList[i], kUnicodeMime) == 0) {
|
|
// 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|