NS_IMETHODIMP
nsClipboard::HasDataMatchingFlavors(nsISupportsArray *aFlavorList,
PRInt32 aWhichClipboard, PRBool *_retval)
{
*_retval = PR_FALSE;
PRUint32 length = 0;
aFlavorList->Count(&length);
if (!length)
return NS_OK;
GtkSelectionData *selection_data =
GetTargets(GetSelectionAtom(aWhichClipboard));
if (!selection_data)
return NS_OK;
gint n_targets = 0;
GdkAtom *targets = NULL;
if (!gtk_selection_data_get_targets(selection_data,
&targets, &n_targets) ||
!n_targets)
return NS_OK;
// Walk through the provided types and try to match it to a
// provided type.
for (PRUint32 i = 0; i < length && !*_retval; i++) {
nsCOMPtr<nsISupports> genericFlavor;
aFlavorList->GetElementAt(i, getter_AddRefs(genericFlavor));
nsCOMPtr<nsISupportsCString> flavorWrapper;
flavorWrapper = do_QueryInterface(genericFlavor);
if (flavorWrapper) {
nsXPIDLCString myStr;
flavorWrapper->ToString(getter_Copies(myStr));
// We special case text/unicode here.
if (!strcmp(myStr, kUnicodeMime) &&
gtk_selection_data_targets_include_text(selection_data)) {
*_retval = PR_TRUE;
break;
}
for (PRInt32 j = 0; j < n_targets; j++) {
gchar *atom_name = gdk_atom_name(targets[j]);
if (!strcmp(atom_name, (const char *)myStr))
*_retval = PR_TRUE;
g_free(atom_name);
if (*_retval)
break;
}
}
}
gtk_selection_data_free(selection_data);
g_free(targets);
return NS_OK;
}
NS_IMETHODIMP
nsClipboard::HasDataMatchingFlavors(const char** aFlavorList, PRUint32 aLength,
PRInt32 aWhichClipboard, PRBool *_retval)
{
if (!aFlavorList || !_retval)
return NS_ERROR_NULL_POINTER;
*_retval = PR_FALSE;
GtkSelectionData *selection_data =
GetTargets(GetSelectionAtom(aWhichClipboard));
if (!selection_data)
return NS_OK;
gint n_targets = 0;
GdkAtom *targets = NULL;
if (!gtk_selection_data_get_targets(selection_data,
&targets, &n_targets) ||
!n_targets)
return NS_OK;
// Walk through the provided types and try to match it to a
// provided type.
for (PRUint32 i = 0; i < aLength && !*_retval; i++) {
// We special case text/unicode here.
if (!strcmp(aFlavorList[i], kUnicodeMime) &&
gtk_selection_data_targets_include_text(selection_data)) {
*_retval = PR_TRUE;
break;
}
for (PRInt32 j = 0; j < n_targets; j++) {
gchar *atom_name = gdk_atom_name(targets[j]);
if (!atom_name)
continue;
if (!strcmp(atom_name, aFlavorList[i]))
*_retval = PR_TRUE;
// X clipboard wants image/jpeg, not image/jpg
if (!strcmp(aFlavorList[i], kJPEGImageMime) && !strcmp(atom_name, "image/jpeg"))
*_retval = PR_TRUE;
g_free(atom_name);
if (*_retval)
break;
}
}
gtk_selection_data_free(selection_data);
g_free(targets);
return NS_OK;
}
NS_IMETHODIMP
nsClipboard::GetData(nsITransferable *aTransferable, PRInt32 aWhichClipboard)
{
if (!aTransferable)
return NS_ERROR_FAILURE;
GtkClipboard *clipboard;
clipboard = gtk_clipboard_get(GetSelectionAtom(aWhichClipboard));
guchar *data = NULL;
gint length = 0;
PRBool foundData = PR_FALSE;
nsCAutoString foundFlavor;
// Get a list of flavors this transferable can import
nsCOMPtr<nsISupportsArray> flavors;
nsresult rv;
rv = aTransferable->FlavorsTransferableCanImport(getter_AddRefs(flavors));
if (!flavors || NS_FAILED(rv))
return NS_ERROR_FAILURE;
PRUint32 count;
flavors->Count(&count);
for (PRUint32 i=0; i < count; i++) {
nsCOMPtr<nsISupports> genericFlavor;
flavors->GetElementAt(i, getter_AddRefs(genericFlavor));
nsCOMPtr<nsISupportsCString> currentFlavor;
currentFlavor = do_QueryInterface(genericFlavor);
if (currentFlavor) {
nsXPIDLCString flavorStr;
currentFlavor->ToString(getter_Copies(flavorStr));
// Special case text/unicode since we can convert any
// string into text/unicode
if (!strcmp(flavorStr, kUnicodeMime)) {
gchar* new_text = wait_for_text(clipboard);
if (new_text) {
// Convert utf-8 into our unicode format.
NS_ConvertUTF8toUCS2 ucs2string(new_text);
data = (guchar *)ToNewUnicode(ucs2string);
length = ucs2string.Length() * 2;
g_free(new_text);
foundData = PR_TRUE;
foundFlavor = kUnicodeMime;
break;
}
// If the type was text/unicode and we couldn't get
// text off the clipboard, run the next loop
// iteration.
continue;
}
// Get the atom for this type and try to request it off
// the clipboard.
GdkAtom atom = gdk_atom_intern(flavorStr, FALSE);
GtkSelectionData *selectionData;
selectionData = wait_for_contents(clipboard, atom);
if (selectionData) {
length = selectionData->length;
// Special case text/html since we can convert into UCS2
if (!strcmp(flavorStr, kHTMLMime)) {
PRUnichar* htmlBody= nsnull;
PRInt32 htmlBodyLen = 0;
// Convert text/html into our unicode format
ConvertHTMLtoUCS2((guchar *)selectionData->data, length,
&htmlBody, htmlBodyLen);
if (!htmlBodyLen)
break;
data = (guchar *)htmlBody;
length = htmlBodyLen * 2;
} else {
data = (guchar *)nsMemory::Alloc(length);
if (!data)
break;
memcpy(data, selectionData->data, length);
}
foundData = PR_TRUE;
foundFlavor = flavorStr;
break;
}
}
}
if (foundData) {
nsCOMPtr<nsISupports> wrapper;
nsPrimitiveHelpers::CreatePrimitiveForData(foundFlavor.get(),
data, length,
getter_AddRefs(wrapper));
aTransferable->SetTransferData(foundFlavor.get(),
wrapper, length);
}
if (data)
nsMemory::Free(data);
return NS_OK;
}
NS_IMETHODIMP
nsClipboard::SetData(nsITransferable *aTransferable,
nsIClipboardOwner *aOwner, PRInt32 aWhichClipboard)
{
// See if we can short cut
if ((aWhichClipboard == kGlobalClipboard &&
aTransferable == mGlobalTransferable.get() &&
aOwner == mGlobalOwner.get()) ||
(aWhichClipboard == kSelectionClipboard &&
aTransferable == mSelectionTransferable.get() &&
aOwner == mSelectionOwner.get())) {
return NS_OK;
}
// Clear out the clipboard in order to set the new data
EmptyClipboard(aWhichClipboard);
if (aWhichClipboard == kSelectionClipboard) {
mSelectionOwner = aOwner;
mSelectionTransferable = aTransferable;
}
else {
mGlobalOwner = aOwner;
mGlobalTransferable = aTransferable;
}
// Which selection are we about to claim, CLIPBOARD or PRIMARY?
GdkAtom selectionAtom = GetSelectionAtom(aWhichClipboard);
// Make ourselves the owner. If we fail to, return.
if (!gtk_selection_owner_set(mWidget, selectionAtom, GDK_CURRENT_TIME))
return NS_ERROR_FAILURE;
// Clear the old selection target list.
gtk_selection_clear_targets(mWidget, selectionAtom);
// Get the types of supported flavors
nsresult rv;
nsCOMPtr<nsISupportsArray> flavors;
rv = aTransferable->FlavorsTransferableCanExport(getter_AddRefs(flavors));
if (!flavors || NS_FAILED(rv))
return NS_ERROR_FAILURE;
// Add all the flavors to this widget's supported type.
PRUint32 count;
flavors->Count(&count);
for (PRUint32 i=0; i < count; i++) {
nsCOMPtr<nsISupports> tastesLike;
flavors->GetElementAt(i, getter_AddRefs(tastesLike));
nsCOMPtr<nsISupportsCString> flavor = do_QueryInterface(tastesLike);
if (flavor) {
nsXPIDLCString flavorStr;
flavor->ToString(getter_Copies(flavorStr));
// special case text/unicode since we can handle all of
// the string types
if (!strcmp(flavorStr, kUnicodeMime)) {
AddTarget(gdk_atom_intern("UTF8_STRING", FALSE),
selectionAtom);
AddTarget(gdk_atom_intern("COMPOUND_TEXT", FALSE),
selectionAtom);
AddTarget(gdk_atom_intern("TEXT", FALSE), selectionAtom);
AddTarget(GDK_SELECTION_TYPE_STRING, selectionAtom);
// next loop iteration
continue;
}
// Add this to our list of valid targets
GdkAtom atom = gdk_atom_intern(flavorStr, FALSE);
AddTarget(atom, selectionAtom);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsClipboard::SetData(nsITransferable *aTransferable,
nsIClipboardOwner *aOwner, PRInt32 aWhichClipboard)
{
// See if we can short cut
if ((aWhichClipboard == kGlobalClipboard &&
aTransferable == mGlobalTransferable.get() &&
aOwner == mGlobalOwner.get()) ||
(aWhichClipboard == kSelectionClipboard &&
aTransferable == mSelectionTransferable.get() &&
aOwner == mSelectionOwner.get())) {
return NS_OK;
}
nsresult rv;
if (!mPrivacyHandler) {
rv = NS_NewClipboardPrivacyHandler(getter_AddRefs(mPrivacyHandler));
NS_ENSURE_SUCCESS(rv, rv);
}
rv = mPrivacyHandler->PrepareDataForClipboard(aTransferable);
NS_ENSURE_SUCCESS(rv, rv);
// Clear out the clipboard in order to set the new data
EmptyClipboard(aWhichClipboard);
// List of suported targets
GtkTargetList *list = gtk_target_list_new(NULL, 0);
// Get the types of supported flavors
nsCOMPtr<nsISupportsArray> flavors;
rv = aTransferable->FlavorsTransferableCanExport(getter_AddRefs(flavors));
if (!flavors || NS_FAILED(rv))
return NS_ERROR_FAILURE;
// Add all the flavors to this widget's supported type.
PRBool imagesAdded = PR_FALSE;
PRUint32 count;
flavors->Count(&count);
for (PRUint32 i=0; i < count; i++) {
nsCOMPtr<nsISupports> tastesLike;
flavors->GetElementAt(i, getter_AddRefs(tastesLike));
nsCOMPtr<nsISupportsCString> flavor = do_QueryInterface(tastesLike);
if (flavor) {
nsXPIDLCString flavorStr;
flavor->ToString(getter_Copies(flavorStr));
// special case text/unicode since we can handle all of
// the string types
if (!strcmp(flavorStr, kUnicodeMime)) {
gtk_target_list_add(list, gdk_atom_intern("UTF8_STRING", FALSE), 0, 0);
gtk_target_list_add(list, gdk_atom_intern("COMPOUND_TEXT", FALSE), 0, 0);
gtk_target_list_add(list, gdk_atom_intern("TEXT", FALSE), 0, 0);
gtk_target_list_add(list, GDK_SELECTION_TYPE_STRING, 0, 0);
continue;
}
if (flavorStr.EqualsLiteral(kNativeImageMime) ||
flavorStr.EqualsLiteral(kPNGImageMime) ||
flavorStr.EqualsLiteral(kJPEGImageMime) ||
flavorStr.EqualsLiteral(kGIFImageMime)) {
// don't bother adding image targets twice
if (!imagesAdded) {
// accept any writable image type
gtk_target_list_add_image_targets(list, 0, TRUE);
imagesAdded = PR_TRUE;
}
continue;
}
// Add this to our list of valid targets
GdkAtom atom = gdk_atom_intern(flavorStr, FALSE);
gtk_target_list_add(list, atom, 0, 0);
}
}
// Get GTK clipboard (CLIPBOARD or PRIMARY)
GtkClipboard *gtkClipboard = gtk_clipboard_get(GetSelectionAtom(aWhichClipboard));
gint numTargets;
GtkTargetEntry *gtkTargets = gtk_target_table_new_from_list(list, &numTargets);
// Set getcallback and request to store data after an application exit
if (gtk_clipboard_set_with_data(gtkClipboard, gtkTargets, numTargets,
clipboard_get_cb, clipboard_clear_cb, this))
{
// We managed to set-up the clipboard so update internal state
// We have to set it now because gtk_clipboard_set_with_data() calls clipboard_clear_cb()
// which reset our internal state
if (aWhichClipboard == kSelectionClipboard) {
mSelectionOwner = aOwner;
mSelectionTransferable = aTransferable;
}
else {
mGlobalOwner = aOwner;
mGlobalTransferable = aTransferable;
gtk_clipboard_set_can_store(gtkClipboard, gtkTargets, numTargets);
}
rv = NS_OK;
}
else {
rv = NS_ERROR_FAILURE;
}
gtk_target_table_free(gtkTargets, numTargets);
gtk_target_list_unref(list);
return rv;
}
NS_IMETHODIMP
nsClipboard::GetData(nsITransferable *aTransferable, PRInt32 aWhichClipboard)
{
if (!aTransferable)
return NS_ERROR_FAILURE;
GtkClipboard *clipboard;
clipboard = gtk_clipboard_get(GetSelectionAtom(aWhichClipboard));
guchar *data = NULL;
gint length = 0;
bool foundData = false;
nsCAutoString foundFlavor;
// Get a list of flavors this transferable can import
nsCOMPtr<nsISupportsArray> flavors;
nsresult rv;
rv = aTransferable->FlavorsTransferableCanImport(getter_AddRefs(flavors));
if (!flavors || NS_FAILED(rv))
return NS_ERROR_FAILURE;
PRUint32 count;
flavors->Count(&count);
for (PRUint32 i=0; i < count; i++) {
nsCOMPtr<nsISupports> genericFlavor;
flavors->GetElementAt(i, getter_AddRefs(genericFlavor));
nsCOMPtr<nsISupportsCString> currentFlavor;
currentFlavor = do_QueryInterface(genericFlavor);
if (currentFlavor) {
nsXPIDLCString flavorStr;
currentFlavor->ToString(getter_Copies(flavorStr));
// Special case text/unicode since we can convert any
// string into text/unicode
if (!strcmp(flavorStr, kUnicodeMime)) {
gchar* new_text = wait_for_text(clipboard);
if (new_text) {
// Convert utf-8 into our unicode format.
NS_ConvertUTF8toUTF16 ucs2string(new_text);
data = (guchar *)ToNewUnicode(ucs2string);
length = ucs2string.Length() * 2;
g_free(new_text);
foundData = true;
foundFlavor = kUnicodeMime;
break;
}
// If the type was text/unicode and we couldn't get
// text off the clipboard, run the next loop
// iteration.
continue;
}
// For images, we must wrap the data in an nsIInputStream then return instead of break,
// because that code below won't help us.
if (!strcmp(flavorStr, kJPEGImageMime) || !strcmp(flavorStr, kPNGImageMime) || !strcmp(flavorStr, kGIFImageMime)) {
GdkAtom atom;
if (!strcmp(flavorStr, kJPEGImageMime)) // This is image/jpg, but X only understands image/jpeg
atom = gdk_atom_intern("image/jpeg", FALSE);
else
atom = gdk_atom_intern(flavorStr, FALSE);
GtkSelectionData *selectionData = wait_for_contents(clipboard, atom);
if (!selectionData)
continue;
nsCOMPtr<nsIInputStream> byteStream;
NS_NewByteInputStream(getter_AddRefs(byteStream), (const char*)selectionData->data,
selectionData->length, NS_ASSIGNMENT_COPY);
aTransferable->SetTransferData(flavorStr, byteStream, sizeof(nsIInputStream*));
gtk_selection_data_free(selectionData);
return NS_OK;
}
// Get the atom for this type and try to request it off
// the clipboard.
GdkAtom atom = gdk_atom_intern(flavorStr, FALSE);
GtkSelectionData *selectionData;
selectionData = wait_for_contents(clipboard, atom);
if (selectionData) {
length = selectionData->length;
// Special case text/html since we can convert into UCS2
if (!strcmp(flavorStr, kHTMLMime)) {
PRUnichar* htmlBody= nsnull;
PRInt32 htmlBodyLen = 0;
// Convert text/html into our unicode format
ConvertHTMLtoUCS2((guchar *)selectionData->data, length,
&htmlBody, htmlBodyLen);
// Try next data format?
if (!htmlBodyLen)
continue;
data = (guchar *)htmlBody;
length = htmlBodyLen * 2;
} else {
data = (guchar *)nsMemory::Alloc(length);
if (!data)
break;
memcpy(data, selectionData->data, length);
}
foundData = true;
foundFlavor = flavorStr;
break;
}
}
}
if (foundData) {
nsCOMPtr<nsISupports> wrapper;
nsPrimitiveHelpers::CreatePrimitiveForData(foundFlavor.get(),
data, length,
getter_AddRefs(wrapper));
aTransferable->SetTransferData(foundFlavor.get(),
wrapper, length);
}
if (data)
nsMemory::Free(data);
return NS_OK;
}
