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gecko-dev/widget/cocoa/nsClipboard.mm

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <algorithm>
#include "mozilla/Logging.h"
#include "mozilla/Unused.h"
#include "gfxPlatform.h"
#include "nsArrayUtils.h"
#include "nsCOMPtr.h"
#include "nsClipboard.h"
#include "nsString.h"
#include "nsISupportsPrimitives.h"
#include "nsPrimitiveHelpers.h"
#include "nsMemory.h"
#include "nsIFile.h"
#include "nsStringStream.h"
#include "nsDragService.h"
#include "nsEscape.h"
#include "nsPrintfCString.h"
#include "nsObjCExceptions.h"
#include "imgIContainer.h"
#include "nsCocoaUtils.h"
using mozilla::gfx::DataSourceSurface;
using mozilla::gfx::SourceSurface;
using mozilla::LogLevel;
extern mozilla::LazyLogModule sCocoaLog;
mozilla::StaticRefPtr<nsITransferable> nsClipboard::sSelectionCache;
@implementation UTIHelper
+ (NSString*)stringFromPboardType:(NSString*)aType {
if ([aType isEqualToString:kMozWildcardPboardType] ||
[aType isEqualToString:kMozCustomTypesPboardType] ||
[aType isEqualToString:kPublicUrlPboardType] ||
[aType isEqualToString:kPublicUrlNamePboardType] ||
[aType isEqualToString:kMozFileUrlsPboardType] ||
[aType isEqualToString:(NSString*)kPasteboardTypeFileURLPromise] ||
[aType isEqualToString:(NSString*)kPasteboardTypeFilePromiseContent] ||
[aType isEqualToString:(NSString*)kUTTypeFileURL] ||
[aType isEqualToString:NSStringPboardType] ||
[aType isEqualToString:NSPasteboardTypeString] ||
[aType isEqualToString:NSPasteboardTypeHTML] || [aType isEqualToString:NSPasteboardTypeRTF] ||
[aType isEqualToString:NSPasteboardTypeTIFF] || [aType isEqualToString:NSPasteboardTypePNG]) {
return [NSString stringWithString:aType];
}
NSString* dynamicType = (NSString*)UTTypeCreatePreferredIdentifierForTag(
kUTTagClassNSPboardType, (CFStringRef)aType, kUTTypeData);
NSString* result = [NSString stringWithString:dynamicType];
[dynamicType release];
return result;
}
@end // UTIHelper
nsClipboard::nsClipboard()
: mCachedClipboard(-1), mChangeCount(0), mIgnoreEmptyNotification(false) {}
nsClipboard::~nsClipboard() {
EmptyClipboard(kGlobalClipboard);
EmptyClipboard(kFindClipboard);
ClearSelectionCache();
}
NS_IMPL_ISUPPORTS(nsClipboard, nsIClipboard)
// We separate this into its own function because after an @try, all local
// variables within that function get marked as volatile, and our C++ type
// system doesn't like volatile things.
static NSData* GetDataFromPasteboard(NSPasteboard* aPasteboard, NSString* aType) {
NSData* data = nil;
@try {
data = [aPasteboard dataForType:aType];
} @catch (NSException* e) {
NS_WARNING(
nsPrintfCString("Exception raised while getting data from the pasteboard: \"%s - %s\"",
[[e name] UTF8String], [[e reason] UTF8String])
.get());
mozilla::Unused << e;
}
return data;
}
void nsClipboard::SetSelectionCache(nsITransferable* aTransferable) {
sSelectionCache = aTransferable;
}
void nsClipboard::ClearSelectionCache() { sSelectionCache = nullptr; }
NS_IMETHODIMP
nsClipboard::SetNativeClipboardData(int32_t aWhichClipboard) {
NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
if ((aWhichClipboard != kGlobalClipboard && aWhichClipboard != kFindClipboard) || !mTransferable)
return NS_ERROR_FAILURE;
mIgnoreEmptyNotification = true;
NSDictionary* pasteboardOutputDict = PasteboardDictFromTransferable(mTransferable);
if (!pasteboardOutputDict) return NS_ERROR_FAILURE;
unsigned int outputCount = [pasteboardOutputDict count];
NSArray* outputKeys = [pasteboardOutputDict allKeys];
NSPasteboard* cocoaPasteboard;
if (aWhichClipboard == kFindClipboard) {
cocoaPasteboard = [NSPasteboard pasteboardWithName:NSFindPboard];
NSString* stringType = [UTIHelper stringFromPboardType:NSPasteboardTypeString];
[cocoaPasteboard declareTypes:[NSArray arrayWithObject:stringType] owner:nil];
} else {
// Write everything else out to the general pasteboard.
cocoaPasteboard = [NSPasteboard generalPasteboard];
[cocoaPasteboard declareTypes:outputKeys owner:nil];
}
for (unsigned int i = 0; i < outputCount; i++) {
NSString* currentKey = [outputKeys objectAtIndex:i];
id currentValue = [pasteboardOutputDict valueForKey:currentKey];
if (aWhichClipboard == kFindClipboard) {
if ([currentKey isEqualToString:[UTIHelper stringFromPboardType:NSPasteboardTypeString]]) {
[cocoaPasteboard setString:currentValue forType:currentKey];
}
} else {
if ([currentKey isEqualToString:[UTIHelper stringFromPboardType:NSPasteboardTypeString]] ||
[currentKey isEqualToString:[UTIHelper stringFromPboardType:kPublicUrlPboardType]] ||
[currentKey isEqualToString:[UTIHelper stringFromPboardType:kPublicUrlNamePboardType]]) {
[cocoaPasteboard setString:currentValue forType:currentKey];
} else if ([currentKey
isEqualToString:[UTIHelper stringFromPboardType:kUrlsWithTitlesPboardType]]) {
[cocoaPasteboard setPropertyList:[pasteboardOutputDict valueForKey:currentKey]
forType:currentKey];
} else if ([currentKey
isEqualToString:[UTIHelper stringFromPboardType:NSPasteboardTypeHTML]]) {
[cocoaPasteboard setString:(nsClipboard::WrapHtmlForSystemPasteboard(currentValue))
forType:currentKey];
} else if ([currentKey
isEqualToString:[UTIHelper stringFromPboardType:kMozFileUrlsPboardType]]) {
[cocoaPasteboard writeObjects:currentValue];
} else {
[cocoaPasteboard setData:currentValue forType:currentKey];
}
}
}
mCachedClipboard = aWhichClipboard;
mChangeCount = [cocoaPasteboard changeCount];
mIgnoreEmptyNotification = false;
return NS_OK;
NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
}
nsresult nsClipboard::TransferableFromPasteboard(nsITransferable* aTransferable,
NSPasteboard* cocoaPasteboard) {
NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
// get flavor list that includes all acceptable flavors (including ones obtained through
// conversion)
nsTArray<nsCString> flavors;
nsresult rv = aTransferable->FlavorsTransferableCanImport(flavors);
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
for (uint32_t i = 0; i < flavors.Length(); i++) {
nsCString& flavorStr = flavors[i];
// printf("looking for clipboard data of type %s\n", flavorStr.get());
NSString* pboardType = nil;
if (nsClipboard::IsStringType(flavorStr, &pboardType)) {
NSString* pString = [cocoaPasteboard stringForType:pboardType];
if (!pString) {
[pboardType release];
continue;
}
NSData* stringData;
if ([pboardType isEqualToString:[UTIHelper stringFromPboardType:NSPasteboardTypeRTF]]) {
stringData = [pString dataUsingEncoding:NSASCIIStringEncoding];
} else {
stringData = [pString dataUsingEncoding:NSUnicodeStringEncoding];
}
unsigned int dataLength = [stringData length];
void* clipboardDataPtr = malloc(dataLength);
if (!clipboardDataPtr) {
[pboardType release];
return NS_ERROR_OUT_OF_MEMORY;
}
[stringData getBytes:clipboardDataPtr length:dataLength];
// The DOM only wants LF, so convert from MacOS line endings to DOM line endings.
int32_t signedDataLength = dataLength;
nsLinebreakHelpers::ConvertPlatformToDOMLinebreaks(flavorStr, &clipboardDataPtr,
&signedDataLength);
dataLength = signedDataLength;
// skip BOM (Byte Order Mark to distinguish little or big endian)
char16_t* clipboardDataPtrNoBOM = (char16_t*)clipboardDataPtr;
if ((dataLength > 2) &&
((clipboardDataPtrNoBOM[0] == 0xFEFF) || (clipboardDataPtrNoBOM[0] == 0xFFFE))) {
dataLength -= sizeof(char16_t);
clipboardDataPtrNoBOM += 1;
}
nsCOMPtr<nsISupports> genericDataWrapper;
nsPrimitiveHelpers::CreatePrimitiveForData(flavorStr, clipboardDataPtrNoBOM, dataLength,
getter_AddRefs(genericDataWrapper));
aTransferable->SetTransferData(flavorStr.get(), genericDataWrapper);
free(clipboardDataPtr);
[pboardType release];
break;
} else if (flavorStr.EqualsLiteral(kCustomTypesMime)) {
NSString* type = [cocoaPasteboard
availableTypeFromArray:
[NSArray arrayWithObject:[UTIHelper stringFromPboardType:kMozCustomTypesPboardType]]];
if (!type) {
continue;
}
NSData* pasteboardData = GetDataFromPasteboard(cocoaPasteboard, type);
if (!pasteboardData) {
continue;
}
unsigned int dataLength = [pasteboardData length];
void* clipboardDataPtr = malloc(dataLength);
if (!clipboardDataPtr) {
return NS_ERROR_OUT_OF_MEMORY;
}
[pasteboardData getBytes:clipboardDataPtr length:dataLength];
nsCOMPtr<nsISupports> genericDataWrapper;
nsPrimitiveHelpers::CreatePrimitiveForData(flavorStr, clipboardDataPtr, dataLength,
getter_AddRefs(genericDataWrapper));
aTransferable->SetTransferData(flavorStr.get(), genericDataWrapper);
free(clipboardDataPtr);
} else if (flavorStr.EqualsLiteral(kJPEGImageMime) || flavorStr.EqualsLiteral(kJPGImageMime) ||
flavorStr.EqualsLiteral(kPNGImageMime) || flavorStr.EqualsLiteral(kGIFImageMime)) {
// Figure out if there's data on the pasteboard we can grab (sanity check)
NSString* type = [cocoaPasteboard
availableTypeFromArray:
[NSArray arrayWithObjects:[UTIHelper stringFromPboardType:(NSString*)kUTTypeFileURL],
[UTIHelper stringFromPboardType:NSPasteboardTypeTIFF],
[UTIHelper stringFromPboardType:NSPasteboardTypePNG], nil]];
if (!type) continue;
// Read data off the clipboard
NSData* pasteboardData = GetDataFromPasteboard(cocoaPasteboard, type);
if (!pasteboardData) continue;
// Figure out what type we're converting to
CFStringRef outputType = NULL;
if (flavorStr.EqualsLiteral(kJPEGImageMime) || flavorStr.EqualsLiteral(kJPGImageMime))
outputType = CFSTR("public.jpeg");
else if (flavorStr.EqualsLiteral(kPNGImageMime))
outputType = CFSTR("public.png");
else if (flavorStr.EqualsLiteral(kGIFImageMime))
outputType = CFSTR("com.compuserve.gif");
else
continue;
// Use ImageIO to interpret the data on the clipboard and transcode.
// Note that ImageIO, like all CF APIs, allows NULLs to propagate freely
// and safely in most cases (like ObjC). A notable exception is CFRelease.
NSDictionary* options = [NSDictionary
dictionaryWithObjectsAndKeys:(NSNumber*)kCFBooleanTrue, kCGImageSourceShouldAllowFloat,
type, kCGImageSourceTypeIdentifierHint, nil];
CGImageSourceRef source = nullptr;
if (type == [UTIHelper stringFromPboardType:(NSString*)kUTTypeFileURL]) {
NSString* urlStr = [cocoaPasteboard stringForType:type];
NSURL* url = [NSURL URLWithString:urlStr];
source = CGImageSourceCreateWithURL((CFURLRef)url, (CFDictionaryRef)options);
} else {
source = CGImageSourceCreateWithData((CFDataRef)pasteboardData, (CFDictionaryRef)options);
}
NSMutableData* encodedData = [NSMutableData data];
CGImageDestinationRef dest =
CGImageDestinationCreateWithData((CFMutableDataRef)encodedData, outputType, 1, NULL);
CGImageDestinationAddImageFromSource(dest, source, 0, NULL);
bool successfullyConverted = CGImageDestinationFinalize(dest);
if (successfullyConverted) {
// Put the converted data in a form Gecko can understand
nsCOMPtr<nsIInputStream> byteStream;
NS_NewByteInputStream(getter_AddRefs(byteStream),
mozilla::Span((const char*)[encodedData bytes], [encodedData length]),
NS_ASSIGNMENT_COPY);
aTransferable->SetTransferData(flavorStr.get(), byteStream);
}
if (dest) CFRelease(dest);
if (source) CFRelease(source);
if (successfullyConverted)
break;
else
continue;
}
}
return NS_OK;
NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
}
NS_IMETHODIMP
nsClipboard::GetNativeClipboardData(nsITransferable* aTransferable, int32_t aWhichClipboard) {
NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
if ((aWhichClipboard != kGlobalClipboard && aWhichClipboard != kFindClipboard) || !aTransferable)
return NS_ERROR_FAILURE;
NSPasteboard* cocoaPasteboard;
if (aWhichClipboard == kFindClipboard) {
cocoaPasteboard = [NSPasteboard pasteboardWithName:NSFindPboard];
} else {
cocoaPasteboard = [NSPasteboard generalPasteboard];
}
if (!cocoaPasteboard) return NS_ERROR_FAILURE;
// get flavor list that includes all acceptable flavors (including ones obtained through
// conversion)
nsTArray<nsCString> flavors;
nsresult rv = aTransferable->FlavorsTransferableCanImport(flavors);
if (NS_FAILED(rv)) return NS_ERROR_FAILURE;
// If we were the last ones to put something on the pasteboard, then just use the cached
// transferable. Otherwise clear it because it isn't relevant any more.
if (mCachedClipboard == aWhichClipboard && mChangeCount == [cocoaPasteboard changeCount]) {
if (mTransferable) {
for (uint32_t i = 0; i < flavors.Length(); i++) {
nsCString& flavorStr = flavors[i];
nsCOMPtr<nsISupports> dataSupports;
rv = mTransferable->GetTransferData(flavorStr.get(), getter_AddRefs(dataSupports));
if (NS_SUCCEEDED(rv)) {
aTransferable->SetTransferData(flavorStr.get(), dataSupports);
return NS_OK; // maybe try to fill in more types? Is there a point?
}
}
}
} else {
EmptyClipboard(aWhichClipboard);
}
// at this point we can't satisfy the request from cache data so let's look
// for things other people put on the system clipboard
return nsClipboard::TransferableFromPasteboard(aTransferable, cocoaPasteboard);
NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
}
// returns true if we have *any* of the passed in flavors available for pasting
NS_IMETHODIMP
nsClipboard::HasDataMatchingFlavors(const nsTArray<nsCString>& aFlavorList, int32_t aWhichClipboard,
bool* outResult) {
NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
*outResult = false;
if (aWhichClipboard != kGlobalClipboard) return NS_OK;
// first see if we have data for this in our cached transferable
if (mTransferable) {
nsTArray<nsCString> flavors;
nsresult rv = mTransferable->FlavorsTransferableCanImport(flavors);
if (NS_SUCCEEDED(rv)) {
for (uint32_t j = 0; j < flavors.Length(); j++) {
const nsCString& transferableFlavorStr = flavors[j];
for (uint32_t k = 0; k < aFlavorList.Length(); k++) {
if (transferableFlavorStr.Equals(aFlavorList[k])) {
*outResult = true;
return NS_OK;
}
}
}
}
}
NSPasteboard* generalPBoard = [NSPasteboard generalPasteboard];
for (auto& mimeType : aFlavorList) {
NSString* pboardType = nil;
if (nsClipboard::IsStringType(mimeType, &pboardType)) {
NSString* availableType =
[generalPBoard availableTypeFromArray:[NSArray arrayWithObject:pboardType]];
if (availableType && [availableType isEqualToString:pboardType]) {
[pboardType release];
*outResult = true;
break;
}
[pboardType release];
} else if (mimeType.EqualsLiteral(kCustomTypesMime)) {
NSString* availableType = [generalPBoard
availableTypeFromArray:
[NSArray arrayWithObject:[UTIHelper stringFromPboardType:kMozCustomTypesPboardType]]];
if (availableType) {
*outResult = true;
break;
}
} else if (mimeType.EqualsLiteral(kJPEGImageMime) || mimeType.EqualsLiteral(kJPGImageMime) ||
mimeType.EqualsLiteral(kPNGImageMime) || mimeType.EqualsLiteral(kGIFImageMime)) {
NSString* availableType = [generalPBoard
availableTypeFromArray:
[NSArray arrayWithObjects:[UTIHelper stringFromPboardType:NSPasteboardTypeTIFF],
[UTIHelper stringFromPboardType:NSPasteboardTypePNG], nil]];
if (availableType) {
*outResult = true;
break;
}
}
}
return NS_OK;
NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
}
NS_IMETHODIMP
nsClipboard::SupportsFindClipboard(bool* _retval) {
NS_ENSURE_ARG_POINTER(_retval);
*_retval = true;
return NS_OK;
}
// static
mozilla::Maybe<uint32_t> nsClipboard::FindIndexOfImageFlavor(
const nsTArray<nsCString>& aMIMETypes) {
for (uint32_t i = 0; i < aMIMETypes.Length(); ++i) {
if (nsClipboard::IsImageType(aMIMETypes[i])) {
return mozilla::Some(i);
}
}
return mozilla::Nothing();
}
// This function converts anything that other applications might understand into the system format
// and puts it into a dictionary which it returns.
// static
NSDictionary* nsClipboard::PasteboardDictFromTransferable(nsITransferable* aTransferable) {
NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
if (!aTransferable) {
return nil;
}
NSMutableDictionary* pasteboardOutputDict = [NSMutableDictionary dictionary];
nsTArray<nsCString> flavors;
nsresult rv = aTransferable->FlavorsTransferableCanExport(flavors);
if (NS_FAILED(rv)) {
return nil;
}
const mozilla::Maybe<uint32_t> imageFlavorIndex = nsClipboard::FindIndexOfImageFlavor(flavors);
if (imageFlavorIndex) {
// When right-clicking and "Copy Image" is clicked on macOS, some apps expect the
// first flavor to be the image flavor. See bug 1689992. For other apps, the
// order shouldn't matter.
std::swap(*flavors.begin(), flavors[*imageFlavorIndex]);
}
for (uint32_t i = 0; i < flavors.Length(); i++) {
nsCString& flavorStr = flavors[i];
MOZ_LOG(sCocoaLog, LogLevel::Info,
("writing out clipboard data of type %s (%d)\n", flavorStr.get(), i));
NSString* pboardType = nil;
if (nsClipboard::IsStringType(flavorStr, &pboardType)) {
nsCOMPtr<nsISupports> genericDataWrapper;
rv = aTransferable->GetTransferData(flavorStr.get(), getter_AddRefs(genericDataWrapper));
if (NS_FAILED(rv)) {
[pboardType release];
continue;
}
nsAutoString data;
if (nsCOMPtr<nsISupportsString> text = do_QueryInterface(genericDataWrapper)) {
text->GetData(data);
}
NSString* nativeString;
if (!data.IsEmpty()) {
nativeString = [NSString stringWithCharacters:(const unichar*)data.get()
length:data.Length()];
} else {
nativeString = [NSString string];
}
// be nice to Carbon apps, normalize the receiver's contents using Form C.
nativeString = [nativeString precomposedStringWithCanonicalMapping];
if (nativeString) {
[pasteboardOutputDict setObject:nativeString forKey:pboardType];
}
[pboardType release];
} else if (flavorStr.EqualsLiteral(kCustomTypesMime)) {
nsCOMPtr<nsISupports> genericDataWrapper;
rv = aTransferable->GetTransferData(flavorStr.get(), getter_AddRefs(genericDataWrapper));
if (NS_FAILED(rv)) {
continue;
}
nsAutoCString data;
if (nsCOMPtr<nsISupportsCString> text = do_QueryInterface(genericDataWrapper)) {
text->GetData(data);
}
if (!data.IsEmpty()) {
NSData* nativeData = [NSData dataWithBytes:data.get() length:data.Length()];
NSString* customType = [UTIHelper stringFromPboardType:kMozCustomTypesPboardType];
if (!nativeData) {
continue;
}
[pasteboardOutputDict setObject:nativeData forKey:customType];
}
} else if (nsClipboard::IsImageType(flavorStr)) {
nsCOMPtr<nsISupports> transferSupports;
rv = aTransferable->GetTransferData(flavorStr.get(), getter_AddRefs(transferSupports));
if (NS_FAILED(rv)) {
continue;
}
nsCOMPtr<imgIContainer> image(do_QueryInterface(transferSupports));
if (!image) {
NS_WARNING("Image isn't an imgIContainer in transferable");
continue;
}
RefPtr<SourceSurface> surface =
image->GetFrame(imgIContainer::FRAME_CURRENT,
imgIContainer::FLAG_SYNC_DECODE | imgIContainer::FLAG_ASYNC_NOTIFY);
if (!surface) {
continue;
}
CGImageRef imageRef = NULL;
rv = nsCocoaUtils::CreateCGImageFromSurface(surface, &imageRef);
if (NS_FAILED(rv) || !imageRef) {
continue;
}
// Convert the CGImageRef to TIFF data.
CFMutableDataRef tiffData = CFDataCreateMutable(kCFAllocatorDefault, 0);
CGImageDestinationRef destRef =
CGImageDestinationCreateWithData(tiffData, CFSTR("public.tiff"), 1, NULL);
CGImageDestinationAddImage(destRef, imageRef, NULL);
bool successfullyConverted = CGImageDestinationFinalize(destRef);
CGImageRelease(imageRef);
if (destRef) {
CFRelease(destRef);
}
if (!successfullyConverted || !tiffData) {
if (tiffData) {
CFRelease(tiffData);
}
continue;
}
NSString* tiffType = [UTIHelper stringFromPboardType:NSPasteboardTypeTIFF];
[pasteboardOutputDict setObject:(NSMutableData*)tiffData forKey:tiffType];
CFRelease(tiffData);
} else if (flavorStr.EqualsLiteral(kFileMime)) {
nsCOMPtr<nsISupports> genericFile;
rv = aTransferable->GetTransferData(flavorStr.get(), getter_AddRefs(genericFile));
if (NS_FAILED(rv)) {
continue;
}
nsCOMPtr<nsIFile> file(do_QueryInterface(genericFile));
if (!file) {
continue;
}
nsAutoString fileURI;
rv = file->GetPath(fileURI);
if (NS_FAILED(rv)) {
continue;
}
NSString* str = nsCocoaUtils::ToNSString(fileURI);
NSURL* url = [NSURL fileURLWithPath:str isDirectory:NO];
NSString* fileUTType = [UTIHelper stringFromPboardType:(NSString*)kUTTypeFileURL];
if (!url || ![url absoluteString]) {
continue;
}
[pasteboardOutputDict setObject:[url absoluteString] forKey:fileUTType];
} else if (flavorStr.EqualsLiteral(kFilePromiseMime)) {
NSString* urlPromise =
[UTIHelper stringFromPboardType:(NSString*)kPasteboardTypeFileURLPromise];
NSString* urlPromiseContent =
[UTIHelper stringFromPboardType:(NSString*)kPasteboardTypeFilePromiseContent];
[pasteboardOutputDict setObject:[NSArray arrayWithObject:@""] forKey:urlPromise];
[pasteboardOutputDict setObject:[NSArray arrayWithObject:@""] forKey:urlPromiseContent];
} else if (flavorStr.EqualsLiteral(kURLMime)) {
nsCOMPtr<nsISupports> genericURL;
rv = aTransferable->GetTransferData(flavorStr.get(), getter_AddRefs(genericURL));
nsCOMPtr<nsISupportsString> urlObject(do_QueryInterface(genericURL));
nsAutoString url;
urlObject->GetData(url);
NSString* nativeTitle = nil;
// A newline embedded in the URL means that the form is actually URL +
// title. This embedding occurs in nsDragService::GetData.
int32_t newlinePos = url.FindChar(char16_t('\n'));
if (newlinePos >= 0) {
url.Truncate(newlinePos);
nsAutoString urlTitle;
urlObject->GetData(urlTitle);
urlTitle.Mid(urlTitle, newlinePos + 1, urlTitle.Length() - (newlinePos + 1));
nativeTitle =
[NSString stringWithCharacters:reinterpret_cast<const unichar*>(urlTitle.get())
length:urlTitle.Length()];
}
// The Finder doesn't like getting random binary data aka
// Unicode, so change it into an escaped URL containing only
// ASCII.
nsAutoCString utf8Data = NS_ConvertUTF16toUTF8(url.get(), url.Length());
nsAutoCString escData;
NS_EscapeURL(utf8Data.get(), utf8Data.Length(), esc_OnlyNonASCII | esc_AlwaysCopy, escData);
NSString* nativeURL = [NSString stringWithUTF8String:escData.get()];
NSString* publicUrl = [UTIHelper stringFromPboardType:kPublicUrlPboardType];
if (!nativeURL) {
continue;
}
[pasteboardOutputDict setObject:nativeURL forKey:publicUrl];
if (nativeTitle) {
NSArray* urlsAndTitles = @[ @[ nativeURL ], @[ nativeTitle ] ];
NSString* urlName = [UTIHelper stringFromPboardType:kPublicUrlNamePboardType];
NSString* urlsWithTitles = [UTIHelper stringFromPboardType:kUrlsWithTitlesPboardType];
[pasteboardOutputDict setObject:nativeTitle forKey:urlName];
[pasteboardOutputDict setObject:urlsAndTitles forKey:urlsWithTitles];
}
}
// If it wasn't a type that we recognize as exportable we don't put it on the system
// clipboard. We'll just access it from our cached transferable when we need it.
}
return pasteboardOutputDict;
NS_OBJC_END_TRY_BLOCK_RETURN(nil);
}
// aPasteboardType is being retained and needs to be released by the caller.
bool nsClipboard::IsStringType(const nsCString& aMIMEType, NSString** aPasteboardType) {
if (aMIMEType.EqualsLiteral(kUnicodeMime)) {
*aPasteboardType = [[UTIHelper stringFromPboardType:NSPasteboardTypeString] retain];
return true;
} else if (aMIMEType.EqualsLiteral(kRTFMime)) {
*aPasteboardType = [[UTIHelper stringFromPboardType:NSPasteboardTypeRTF] retain];
return true;
} else if (aMIMEType.EqualsLiteral(kHTMLMime)) {
*aPasteboardType = [[UTIHelper stringFromPboardType:NSPasteboardTypeHTML] retain];
return true;
} else {
return false;
}
}
// static
bool nsClipboard::IsImageType(const nsACString& aMIMEType) {
return aMIMEType.EqualsLiteral(kPNGImageMime) || aMIMEType.EqualsLiteral(kJPEGImageMime) ||
aMIMEType.EqualsLiteral(kJPGImageMime) || aMIMEType.EqualsLiteral(kGIFImageMime) ||
aMIMEType.EqualsLiteral(kNativeImageMime);
}
NSString* nsClipboard::WrapHtmlForSystemPasteboard(NSString* aString) {
NSString* wrapped = [NSString
stringWithFormat:@"<html>"
"<head>"
"<meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\">"
"</head>"
"<body>"
"%@"
"</body>"
"</html>",
aString];
return wrapped;
}
/**
* Sets the transferable object
*
*/
NS_IMETHODIMP
nsClipboard::SetData(nsITransferable* aTransferable, nsIClipboardOwner* anOwner,
int32_t aWhichClipboard) {
NS_ASSERTION(aTransferable, "clipboard given a null transferable");
if (aWhichClipboard == kSelectionCache) {
if (aTransferable) {
SetSelectionCache(aTransferable);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
if (aTransferable == mTransferable && anOwner == mClipboardOwner) {
return NS_OK;
}
bool selectClipPresent;
SupportsSelectionClipboard(&selectClipPresent);
bool findClipPresent;
SupportsFindClipboard(&findClipPresent);
if (!selectClipPresent && !findClipPresent && aWhichClipboard != kGlobalClipboard) {
return NS_ERROR_FAILURE;
}
EmptyClipboard(aWhichClipboard);
mClipboardOwner = anOwner;
mTransferable = aTransferable;
nsresult rv = NS_ERROR_FAILURE;
if (mTransferable) {
rv = SetNativeClipboardData(aWhichClipboard);
}
return rv;
}
/**
* Gets the transferable object
*
*/
NS_IMETHODIMP
nsClipboard::GetData(nsITransferable* aTransferable, int32_t aWhichClipboard) {
NS_ASSERTION(aTransferable, "clipboard given a null transferable");
bool selectClipPresent;
SupportsSelectionClipboard(&selectClipPresent);
bool findClipPresent;
SupportsFindClipboard(&findClipPresent);
if (!selectClipPresent && !findClipPresent && aWhichClipboard != kGlobalClipboard)
return NS_ERROR_FAILURE;
if (aTransferable) {
return GetNativeClipboardData(aTransferable, aWhichClipboard);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsClipboard::EmptyClipboard(int32_t aWhichClipboard) {
if (aWhichClipboard == kSelectionCache) {
ClearSelectionCache();
return NS_OK;
}
bool selectClipPresent;
SupportsSelectionClipboard(&selectClipPresent);
bool findClipPresent;
SupportsFindClipboard(&findClipPresent);
if (!selectClipPresent && !findClipPresent && aWhichClipboard != kGlobalClipboard) {
return NS_ERROR_FAILURE;
}
if (mIgnoreEmptyNotification) {
return NS_OK;
}
if (mClipboardOwner) {
mClipboardOwner->LosingOwnership(mTransferable);
mClipboardOwner = nullptr;
}
mTransferable = nullptr;
return NS_OK;
}
NS_IMETHODIMP
nsClipboard::SupportsSelectionClipboard(bool* _retval) {
*_retval = false; // we don't support the selection clipboard by default.
return NS_OK;
}
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