mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
ebd358dfd7
This patch was automatically generated by the following script:
#!/bin/bash
# Command to convert PRUnichar to char16_t
function convert() {
echo "Converting $1 to $2..."
find . ! -wholename "*nsprpub*" \
! -wholename "*security/nss*" \
! -wholename "*modules/libmar*" \
! -wholename "*/.hg*" \
! -wholename "obj-ff-dbg*" \
! -name prtypes.h \
! -name Char16.h \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert PRUnichar char16_t
1011 lines
33 KiB
C++
1011 lines
33 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/ArrayUtils.h"
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#include "nsClipboard.h"
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#include "nsSupportsPrimitives.h"
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#include "nsString.h"
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#include "nsReadableUtils.h"
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#include "nsXPIDLString.h"
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#include "nsPrimitiveHelpers.h"
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#include "nsICharsetConverterManager.h"
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#include "nsIServiceManager.h"
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#include "nsImageToPixbuf.h"
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#include "nsStringStream.h"
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#include "nsIObserverService.h"
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#include "mozilla/Services.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/TimeStamp.h"
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#include "imgIContainer.h"
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#include <gtk/gtk.h>
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// For manipulation of the X event queue
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#include <X11/Xlib.h>
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#include <gdk/gdkx.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <unistd.h>
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using namespace mozilla;
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// Callback when someone asks us for the data
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void
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clipboard_get_cb(GtkClipboard *aGtkClipboard,
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GtkSelectionData *aSelectionData,
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guint info,
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gpointer user_data);
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// Callback when someone asks us to clear a clipboard
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void
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clipboard_clear_cb(GtkClipboard *aGtkClipboard,
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gpointer user_data);
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static void
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ConvertHTMLtoUCS2 (guchar *data,
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int32_t dataLength,
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char16_t **unicodeData,
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int32_t &outUnicodeLen);
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static void
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GetHTMLCharset (guchar * data, int32_t dataLength, nsCString& str);
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// Our own versions of gtk_clipboard_wait_for_contents and
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// gtk_clipboard_wait_for_text, which don't run the event loop while
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// waiting for the data. This prevents a lot of problems related to
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// dispatching events at unexpected times.
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static GtkSelectionData *
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wait_for_contents (GtkClipboard *clipboard, GdkAtom target);
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static gchar *
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wait_for_text (GtkClipboard *clipboard);
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nsClipboard::nsClipboard()
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{
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}
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nsClipboard::~nsClipboard()
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{
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// We have to clear clipboard before gdk_display_close() call.
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// See bug 531580 for details.
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if (mGlobalTransferable) {
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gtk_clipboard_clear(gtk_clipboard_get(GDK_SELECTION_CLIPBOARD));
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}
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if (mSelectionTransferable) {
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gtk_clipboard_clear(gtk_clipboard_get(GDK_SELECTION_PRIMARY));
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}
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}
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NS_IMPL_ISUPPORTS1(nsClipboard, nsIClipboard)
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nsresult
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nsClipboard::Init(void)
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{
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nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
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if (!os)
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return NS_ERROR_FAILURE;
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os->AddObserver(this, "quit-application", false);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::Observe(nsISupports *aSubject, const char *aTopic, const char16_t *aData)
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{
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if (strcmp(aTopic, "quit-application") == 0) {
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// application is going to quit, save clipboard content
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Store();
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}
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return NS_OK;
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}
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nsresult
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nsClipboard::Store(void)
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{
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// Ask the clipboard manager to store the current clipboard content
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if (mGlobalTransferable) {
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GtkClipboard *clipboard = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
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gtk_clipboard_store(clipboard);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::SetData(nsITransferable *aTransferable,
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nsIClipboardOwner *aOwner, int32_t aWhichClipboard)
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{
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// See if we can short cut
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if ((aWhichClipboard == kGlobalClipboard &&
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aTransferable == mGlobalTransferable.get() &&
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aOwner == mGlobalOwner.get()) ||
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(aWhichClipboard == kSelectionClipboard &&
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aTransferable == mSelectionTransferable.get() &&
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aOwner == mSelectionOwner.get())) {
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return NS_OK;
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}
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nsresult rv;
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if (!mPrivacyHandler) {
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rv = NS_NewClipboardPrivacyHandler(getter_AddRefs(mPrivacyHandler));
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NS_ENSURE_SUCCESS(rv, rv);
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}
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rv = mPrivacyHandler->PrepareDataForClipboard(aTransferable);
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NS_ENSURE_SUCCESS(rv, rv);
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// Clear out the clipboard in order to set the new data
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EmptyClipboard(aWhichClipboard);
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// List of suported targets
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GtkTargetList *list = gtk_target_list_new(nullptr, 0);
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// Get the types of supported flavors
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nsCOMPtr<nsISupportsArray> flavors;
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rv = aTransferable->FlavorsTransferableCanExport(getter_AddRefs(flavors));
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if (!flavors || NS_FAILED(rv))
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return NS_ERROR_FAILURE;
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// Add all the flavors to this widget's supported type.
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bool imagesAdded = false;
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uint32_t count;
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flavors->Count(&count);
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for (uint32_t i=0; i < count; i++) {
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nsCOMPtr<nsISupports> tastesLike;
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flavors->GetElementAt(i, getter_AddRefs(tastesLike));
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nsCOMPtr<nsISupportsCString> flavor = do_QueryInterface(tastesLike);
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if (flavor) {
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nsXPIDLCString flavorStr;
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flavor->ToString(getter_Copies(flavorStr));
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// special case text/unicode since we can handle all of
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// the string types
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if (!strcmp(flavorStr, kUnicodeMime)) {
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gtk_target_list_add(list, gdk_atom_intern("UTF8_STRING", FALSE), 0, 0);
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gtk_target_list_add(list, gdk_atom_intern("COMPOUND_TEXT", FALSE), 0, 0);
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gtk_target_list_add(list, gdk_atom_intern("TEXT", FALSE), 0, 0);
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gtk_target_list_add(list, GDK_SELECTION_TYPE_STRING, 0, 0);
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continue;
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}
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if (flavorStr.EqualsLiteral(kNativeImageMime) ||
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flavorStr.EqualsLiteral(kPNGImageMime) ||
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flavorStr.EqualsLiteral(kJPEGImageMime) ||
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flavorStr.EqualsLiteral(kJPGImageMime) ||
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flavorStr.EqualsLiteral(kGIFImageMime)) {
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// don't bother adding image targets twice
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if (!imagesAdded) {
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// accept any writable image type
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gtk_target_list_add_image_targets(list, 0, TRUE);
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imagesAdded = true;
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}
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continue;
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}
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// Add this to our list of valid targets
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GdkAtom atom = gdk_atom_intern(flavorStr, FALSE);
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gtk_target_list_add(list, atom, 0, 0);
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}
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}
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// Get GTK clipboard (CLIPBOARD or PRIMARY)
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GtkClipboard *gtkClipboard = gtk_clipboard_get(GetSelectionAtom(aWhichClipboard));
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gint numTargets;
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GtkTargetEntry *gtkTargets = gtk_target_table_new_from_list(list, &numTargets);
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// Set getcallback and request to store data after an application exit
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if (gtk_clipboard_set_with_data(gtkClipboard, gtkTargets, numTargets,
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clipboard_get_cb, clipboard_clear_cb, this))
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{
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// We managed to set-up the clipboard so update internal state
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// We have to set it now because gtk_clipboard_set_with_data() calls clipboard_clear_cb()
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// which reset our internal state
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if (aWhichClipboard == kSelectionClipboard) {
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mSelectionOwner = aOwner;
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mSelectionTransferable = aTransferable;
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}
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else {
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mGlobalOwner = aOwner;
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mGlobalTransferable = aTransferable;
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gtk_clipboard_set_can_store(gtkClipboard, gtkTargets, numTargets);
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}
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rv = NS_OK;
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}
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else {
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rv = NS_ERROR_FAILURE;
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}
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gtk_target_table_free(gtkTargets, numTargets);
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gtk_target_list_unref(list);
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return rv;
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}
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NS_IMETHODIMP
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nsClipboard::GetData(nsITransferable *aTransferable, int32_t aWhichClipboard)
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{
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if (!aTransferable)
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return NS_ERROR_FAILURE;
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GtkClipboard *clipboard;
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clipboard = gtk_clipboard_get(GetSelectionAtom(aWhichClipboard));
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guchar *data = nullptr;
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gint length = 0;
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bool foundData = false;
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nsAutoCString foundFlavor;
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// Get a list of flavors this transferable can import
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nsCOMPtr<nsISupportsArray> flavors;
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nsresult rv;
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rv = aTransferable->FlavorsTransferableCanImport(getter_AddRefs(flavors));
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if (!flavors || NS_FAILED(rv))
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return NS_ERROR_FAILURE;
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uint32_t count;
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flavors->Count(&count);
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for (uint32_t i=0; i < count; i++) {
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nsCOMPtr<nsISupports> genericFlavor;
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flavors->GetElementAt(i, getter_AddRefs(genericFlavor));
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nsCOMPtr<nsISupportsCString> currentFlavor;
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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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// Special case text/unicode since we can convert any
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// string into text/unicode
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if (!strcmp(flavorStr, kUnicodeMime)) {
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gchar* new_text = wait_for_text(clipboard);
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if (new_text) {
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// Convert utf-8 into our unicode format.
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NS_ConvertUTF8toUTF16 ucs2string(new_text);
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data = (guchar *)ToNewUnicode(ucs2string);
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length = ucs2string.Length() * 2;
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g_free(new_text);
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foundData = true;
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foundFlavor = kUnicodeMime;
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break;
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}
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// If the type was text/unicode and we couldn't get
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// text off the clipboard, run the next loop
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// iteration.
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continue;
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}
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// For images, we must wrap the data in an nsIInputStream then return instead of break,
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// because that code below won't help us.
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if (!strcmp(flavorStr, kJPEGImageMime) ||
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!strcmp(flavorStr, kJPGImageMime) ||
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!strcmp(flavorStr, kPNGImageMime) ||
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!strcmp(flavorStr, kGIFImageMime)) {
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// Emulate support for image/jpg
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if (!strcmp(flavorStr, kJPGImageMime)) {
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flavorStr.Assign(kJPEGImageMime);
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}
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GdkAtom atom = gdk_atom_intern(flavorStr, FALSE);
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GtkSelectionData *selectionData = wait_for_contents(clipboard, atom);
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if (!selectionData)
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continue;
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nsCOMPtr<nsIInputStream> byteStream;
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NS_NewByteInputStream(getter_AddRefs(byteStream),
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(const char*)gtk_selection_data_get_data(selectionData),
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gtk_selection_data_get_length(selectionData),
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NS_ASSIGNMENT_COPY);
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aTransferable->SetTransferData(flavorStr, byteStream, sizeof(nsIInputStream*));
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gtk_selection_data_free(selectionData);
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return NS_OK;
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}
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// Get the atom for this type and try to request it off
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// the clipboard.
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GdkAtom atom = gdk_atom_intern(flavorStr, FALSE);
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GtkSelectionData *selectionData;
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selectionData = wait_for_contents(clipboard, atom);
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if (selectionData) {
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const guchar *clipboardData = gtk_selection_data_get_data(selectionData);
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length = gtk_selection_data_get_length(selectionData);
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// Special case text/html since we can convert into UCS2
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if (!strcmp(flavorStr, kHTMLMime)) {
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char16_t* htmlBody= nullptr;
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int32_t htmlBodyLen = 0;
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// Convert text/html into our unicode format
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ConvertHTMLtoUCS2(const_cast<guchar*>(clipboardData), length,
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&htmlBody, htmlBodyLen);
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// Try next data format?
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if (!htmlBodyLen)
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continue;
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data = (guchar *)htmlBody;
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length = htmlBodyLen * 2;
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} else {
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data = (guchar *)nsMemory::Alloc(length);
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if (!data)
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break;
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memcpy(data, clipboardData, length);
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}
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gtk_selection_data_free(selectionData);
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foundData = true;
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foundFlavor = flavorStr;
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break;
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}
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}
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}
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if (foundData) {
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nsCOMPtr<nsISupports> wrapper;
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nsPrimitiveHelpers::CreatePrimitiveForData(foundFlavor.get(),
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data, length,
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getter_AddRefs(wrapper));
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aTransferable->SetTransferData(foundFlavor.get(),
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wrapper, length);
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}
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if (data)
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nsMemory::Free(data);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::EmptyClipboard(int32_t aWhichClipboard)
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{
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if (aWhichClipboard == kSelectionClipboard) {
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if (mSelectionOwner) {
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mSelectionOwner->LosingOwnership(mSelectionTransferable);
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mSelectionOwner = nullptr;
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}
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mSelectionTransferable = nullptr;
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}
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else {
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if (mGlobalOwner) {
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mGlobalOwner->LosingOwnership(mGlobalTransferable);
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mGlobalOwner = nullptr;
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}
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mGlobalTransferable = nullptr;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::HasDataMatchingFlavors(const char** aFlavorList, uint32_t aLength,
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int32_t aWhichClipboard, bool *_retval)
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{
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if (!aFlavorList || !_retval)
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return NS_ERROR_NULL_POINTER;
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*_retval = false;
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GtkSelectionData *selection_data =
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GetTargets(GetSelectionAtom(aWhichClipboard));
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if (!selection_data)
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return NS_OK;
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gint n_targets = 0;
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GdkAtom *targets = nullptr;
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if (!gtk_selection_data_get_targets(selection_data,
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&targets, &n_targets) ||
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!n_targets)
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return NS_OK;
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// Walk through the provided types and try to match it to a
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// provided type.
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for (uint32_t i = 0; i < aLength && !*_retval; i++) {
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// We special case text/unicode here.
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if (!strcmp(aFlavorList[i], kUnicodeMime) &&
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gtk_selection_data_targets_include_text(selection_data)) {
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*_retval = true;
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break;
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}
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for (int32_t j = 0; j < n_targets; j++) {
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gchar *atom_name = gdk_atom_name(targets[j]);
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if (!atom_name)
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continue;
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if (!strcmp(atom_name, aFlavorList[i]))
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*_retval = true;
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// X clipboard supports image/jpeg, but we want to emulate support
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// for image/jpg as well
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if (!strcmp(aFlavorList[i], kJPGImageMime) && !strcmp(atom_name, kJPEGImageMime))
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*_retval = true;
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g_free(atom_name);
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if (*_retval)
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break;
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}
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}
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gtk_selection_data_free(selection_data);
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g_free(targets);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsClipboard::SupportsSelectionClipboard(bool *_retval)
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{
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*_retval = true; // yeah, unix supports the selection clipboard
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return NS_OK;
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}
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|
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/* static */
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GdkAtom
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nsClipboard::GetSelectionAtom(int32_t aWhichClipboard)
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{
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if (aWhichClipboard == kGlobalClipboard)
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return GDK_SELECTION_CLIPBOARD;
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return GDK_SELECTION_PRIMARY;
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}
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|
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/* static */
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GtkSelectionData *
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nsClipboard::GetTargets(GdkAtom aWhichClipboard)
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{
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GtkClipboard *clipboard = gtk_clipboard_get(aWhichClipboard);
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return wait_for_contents(clipboard, gdk_atom_intern("TARGETS", FALSE));
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}
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nsITransferable *
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nsClipboard::GetTransferable(int32_t aWhichClipboard)
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{
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nsITransferable *retval;
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if (aWhichClipboard == kSelectionClipboard)
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retval = mSelectionTransferable.get();
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else
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retval = mGlobalTransferable.get();
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return retval;
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}
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|
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void
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nsClipboard::SelectionGetEvent(GtkClipboard *aClipboard,
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GtkSelectionData *aSelectionData)
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{
|
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// Someone has asked us to hand them something. The first thing
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// that we want to do is see if that something includes text. If
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// it does, try to give it text/unicode after converting it to
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// utf-8.
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|
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int32_t whichClipboard;
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|
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// which clipboard?
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GdkAtom selection = gtk_selection_data_get_selection(aSelectionData);
|
|
if (selection == GDK_SELECTION_PRIMARY)
|
|
whichClipboard = kSelectionClipboard;
|
|
else if (selection == GDK_SELECTION_CLIPBOARD)
|
|
whichClipboard = kGlobalClipboard;
|
|
else
|
|
return; // THAT AIN'T NO CLIPBOARD I EVER HEARD OF
|
|
|
|
nsCOMPtr<nsITransferable> trans = GetTransferable(whichClipboard);
|
|
if (!trans) {
|
|
// We have nothing to serve
|
|
#ifdef DEBUG_CLIPBOARD
|
|
printf("nsClipboard::SelectionGetEvent() - %s clipboard is empty!\n",
|
|
whichClipboard == kSelectionClipboard ? "Selection" : "Global");
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsISupports> item;
|
|
uint32_t len;
|
|
|
|
|
|
GdkAtom selectionTarget = gtk_selection_data_get_target(aSelectionData);
|
|
|
|
// Check to see if the selection data includes any of the string
|
|
// types that we support.
|
|
if (selectionTarget == gdk_atom_intern ("STRING", FALSE) ||
|
|
selectionTarget == gdk_atom_intern ("TEXT", FALSE) ||
|
|
selectionTarget == gdk_atom_intern ("COMPOUND_TEXT", FALSE) ||
|
|
selectionTarget == gdk_atom_intern ("UTF8_STRING", FALSE)) {
|
|
// Try to convert our internal type into a text string. Get
|
|
// the transferable for this clipboard and try to get the
|
|
// text/unicode type for it.
|
|
rv = trans->GetTransferData("text/unicode", getter_AddRefs(item),
|
|
&len);
|
|
if (!item || NS_FAILED(rv))
|
|
return;
|
|
|
|
nsCOMPtr<nsISupportsString> wideString;
|
|
wideString = do_QueryInterface(item);
|
|
if (!wideString)
|
|
return;
|
|
|
|
nsAutoString ucs2string;
|
|
wideString->GetData(ucs2string);
|
|
char *utf8string = ToNewUTF8String(ucs2string);
|
|
if (!utf8string)
|
|
return;
|
|
|
|
gtk_selection_data_set_text (aSelectionData, utf8string,
|
|
strlen(utf8string));
|
|
|
|
nsMemory::Free(utf8string);
|
|
return;
|
|
}
|
|
|
|
// Check to see if the selection data is an image type
|
|
if (gtk_targets_include_image(&selectionTarget, 1, TRUE)) {
|
|
// Look through our transfer data for the image
|
|
static const char* const imageMimeTypes[] = {
|
|
kNativeImageMime, kPNGImageMime, kJPEGImageMime, kJPGImageMime, kGIFImageMime };
|
|
nsCOMPtr<nsISupports> item;
|
|
uint32_t len;
|
|
nsCOMPtr<nsISupportsInterfacePointer> ptrPrimitive;
|
|
for (uint32_t i = 0; !ptrPrimitive && i < ArrayLength(imageMimeTypes); i++) {
|
|
rv = trans->GetTransferData(imageMimeTypes[i], getter_AddRefs(item), &len);
|
|
ptrPrimitive = do_QueryInterface(item);
|
|
}
|
|
if (!ptrPrimitive)
|
|
return;
|
|
|
|
nsCOMPtr<nsISupports> primitiveData;
|
|
ptrPrimitive->GetData(getter_AddRefs(primitiveData));
|
|
nsCOMPtr<imgIContainer> image(do_QueryInterface(primitiveData));
|
|
if (!image) // Not getting an image for an image mime type!?
|
|
return;
|
|
|
|
GdkPixbuf* pixbuf = nsImageToPixbuf::ImageToPixbuf(image);
|
|
if (!pixbuf)
|
|
return;
|
|
|
|
gtk_selection_data_set_pixbuf(aSelectionData, pixbuf);
|
|
g_object_unref(pixbuf);
|
|
return;
|
|
}
|
|
|
|
// Try to match up the selection data target to something our
|
|
// transferable provides.
|
|
gchar *target_name = gdk_atom_name(selectionTarget);
|
|
if (!target_name)
|
|
return;
|
|
|
|
rv = trans->GetTransferData(target_name, getter_AddRefs(item), &len);
|
|
// nothing found?
|
|
if (!item || NS_FAILED(rv)) {
|
|
g_free(target_name);
|
|
return;
|
|
}
|
|
|
|
void *primitive_data = nullptr;
|
|
nsPrimitiveHelpers::CreateDataFromPrimitive(target_name, item,
|
|
&primitive_data, len);
|
|
|
|
if (primitive_data) {
|
|
// Check to see if the selection data is text/html
|
|
if (selectionTarget == gdk_atom_intern (kHTMLMime, FALSE)) {
|
|
/*
|
|
* "text/html" can be encoded UCS2. It is recommended that
|
|
* documents transmitted as UCS2 always begin with a ZERO-WIDTH
|
|
* NON-BREAKING SPACE character (hexadecimal FEFF, also called
|
|
* Byte Order Mark (BOM)). Adding BOM can help other app to
|
|
* detect mozilla use UCS2 encoding when copy-paste.
|
|
*/
|
|
guchar *buffer = (guchar *)
|
|
nsMemory::Alloc((len * sizeof(guchar)) + sizeof(char16_t));
|
|
if (!buffer)
|
|
return;
|
|
char16_t prefix = 0xFEFF;
|
|
memcpy(buffer, &prefix, sizeof(prefix));
|
|
memcpy(buffer + sizeof(prefix), primitive_data, len);
|
|
nsMemory::Free((guchar *)primitive_data);
|
|
primitive_data = (guchar *)buffer;
|
|
len += sizeof(prefix);
|
|
}
|
|
|
|
gtk_selection_data_set(aSelectionData, selectionTarget,
|
|
8, /* 8 bits in a unit */
|
|
(const guchar *)primitive_data, len);
|
|
nsMemory::Free(primitive_data);
|
|
}
|
|
|
|
g_free(target_name);
|
|
|
|
}
|
|
|
|
void
|
|
nsClipboard::SelectionClearEvent(GtkClipboard *aGtkClipboard)
|
|
{
|
|
int32_t whichClipboard;
|
|
|
|
// which clipboard?
|
|
if (aGtkClipboard == gtk_clipboard_get(GDK_SELECTION_PRIMARY))
|
|
whichClipboard = kSelectionClipboard;
|
|
else if (aGtkClipboard == gtk_clipboard_get(GDK_SELECTION_CLIPBOARD))
|
|
whichClipboard = kGlobalClipboard;
|
|
else
|
|
return; // THAT AIN'T NO CLIPBOARD I EVER HEARD OF
|
|
|
|
EmptyClipboard(whichClipboard);
|
|
}
|
|
|
|
void
|
|
clipboard_get_cb(GtkClipboard *aGtkClipboard,
|
|
GtkSelectionData *aSelectionData,
|
|
guint info,
|
|
gpointer user_data)
|
|
{
|
|
nsClipboard *aClipboard = static_cast<nsClipboard *>(user_data);
|
|
aClipboard->SelectionGetEvent(aGtkClipboard, aSelectionData);
|
|
}
|
|
|
|
void
|
|
clipboard_clear_cb(GtkClipboard *aGtkClipboard,
|
|
gpointer user_data)
|
|
{
|
|
nsClipboard *aClipboard = static_cast<nsClipboard *>(user_data);
|
|
aClipboard->SelectionClearEvent(aGtkClipboard);
|
|
}
|
|
|
|
/*
|
|
* when copy-paste, mozilla wants data encoded using UCS2,
|
|
* other app such as StarOffice use "text/html"(RFC2854).
|
|
* This function convert data(got from GTK clipboard)
|
|
* to data mozilla wanted.
|
|
*
|
|
* data from GTK clipboard can be 3 forms:
|
|
* 1. From current mozilla
|
|
* "text/html", charset = utf-16
|
|
* 2. From old version mozilla or mozilla-based app
|
|
* content("body" only), charset = utf-16
|
|
* 3. From other app who use "text/html" when copy-paste
|
|
* "text/html", has "charset" info
|
|
*
|
|
* data : got from GTK clipboard
|
|
* dataLength: got from GTK clipboard
|
|
* body : pass to Mozilla
|
|
* bodyLength: pass to Mozilla
|
|
*/
|
|
void ConvertHTMLtoUCS2(guchar * data, int32_t dataLength,
|
|
char16_t** unicodeData, int32_t& outUnicodeLen)
|
|
{
|
|
nsAutoCString charset;
|
|
GetHTMLCharset(data, dataLength, charset);// get charset of HTML
|
|
if (charset.EqualsLiteral("UTF-16")) {//current mozilla
|
|
outUnicodeLen = (dataLength / 2) - 1;
|
|
*unicodeData = reinterpret_cast<char16_t*>
|
|
(nsMemory::Alloc((outUnicodeLen + sizeof('\0')) *
|
|
sizeof(char16_t)));
|
|
if (*unicodeData) {
|
|
memcpy(*unicodeData, data + sizeof(char16_t),
|
|
outUnicodeLen * sizeof(char16_t));
|
|
(*unicodeData)[outUnicodeLen] = '\0';
|
|
}
|
|
} else if (charset.EqualsLiteral("UNKNOWN")) {
|
|
outUnicodeLen = 0;
|
|
return;
|
|
} else {
|
|
// app which use "text/html" to copy&paste
|
|
nsCOMPtr<nsIUnicodeDecoder> decoder;
|
|
nsresult rv;
|
|
// get the decoder
|
|
nsCOMPtr<nsICharsetConverterManager> ccm =
|
|
do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &rv);
|
|
if (NS_FAILED(rv)) {
|
|
#ifdef DEBUG_CLIPBOARD
|
|
g_print(" can't get CHARSET CONVERTER MANAGER service\n");
|
|
#endif
|
|
outUnicodeLen = 0;
|
|
return;
|
|
}
|
|
rv = ccm->GetUnicodeDecoder(charset.get(), getter_AddRefs(decoder));
|
|
if (NS_FAILED(rv)) {
|
|
#ifdef DEBUG_CLIPBOARD
|
|
g_print(" get unicode decoder error\n");
|
|
#endif
|
|
outUnicodeLen = 0;
|
|
return;
|
|
}
|
|
// converting
|
|
decoder->GetMaxLength((const char *)data, dataLength, &outUnicodeLen);
|
|
// |outUnicodeLen| is number of chars
|
|
if (outUnicodeLen) {
|
|
*unicodeData = reinterpret_cast<char16_t*>
|
|
(nsMemory::Alloc((outUnicodeLen + sizeof('\0')) *
|
|
sizeof(char16_t)));
|
|
if (*unicodeData) {
|
|
int32_t numberTmp = dataLength;
|
|
decoder->Convert((const char *)data, &numberTmp,
|
|
*unicodeData, &outUnicodeLen);
|
|
#ifdef DEBUG_CLIPBOARD
|
|
if (numberTmp != dataLength)
|
|
printf("didn't consume all the bytes\n");
|
|
#endif
|
|
// null terminate. Convert() doesn't do it for us
|
|
(*unicodeData)[outUnicodeLen] = '\0';
|
|
}
|
|
} // if valid length
|
|
}
|
|
}
|
|
|
|
/*
|
|
* get "charset" information from clipboard data
|
|
* return value can be:
|
|
* 1. "UTF-16": mozilla or "text/html" with "charset=utf-16"
|
|
* 2. "UNKNOWN": mozilla can't detect what encode it use
|
|
* 3. other: "text/html" with other charset than utf-16
|
|
*/
|
|
void GetHTMLCharset(guchar * data, int32_t dataLength, nsCString& str)
|
|
{
|
|
// if detect "FFFE" or "FEFF", assume UTF-16
|
|
char16_t* beginChar = (char16_t*)data;
|
|
if ((beginChar[0] == 0xFFFE) || (beginChar[0] == 0xFEFF)) {
|
|
str.AssignLiteral("UTF-16");
|
|
return;
|
|
}
|
|
// no "FFFE" and "FEFF", assume ASCII first to find "charset" info
|
|
const nsDependentCString htmlStr((const char *)data, dataLength);
|
|
nsACString::const_iterator start, end;
|
|
htmlStr.BeginReading(start);
|
|
htmlStr.EndReading(end);
|
|
nsACString::const_iterator valueStart(start), valueEnd(start);
|
|
|
|
if (CaseInsensitiveFindInReadable(
|
|
NS_LITERAL_CSTRING("CONTENT=\"text/html;"),
|
|
start, end)) {
|
|
start = end;
|
|
htmlStr.EndReading(end);
|
|
|
|
if (CaseInsensitiveFindInReadable(
|
|
NS_LITERAL_CSTRING("charset="),
|
|
start, end)) {
|
|
valueStart = end;
|
|
start = end;
|
|
htmlStr.EndReading(end);
|
|
|
|
if (FindCharInReadable('"', start, end))
|
|
valueEnd = start;
|
|
}
|
|
}
|
|
// find "charset" in HTML
|
|
if (valueStart != valueEnd) {
|
|
str = Substring(valueStart, valueEnd);
|
|
ToUpperCase(str);
|
|
#ifdef DEBUG_CLIPBOARD
|
|
printf("Charset of HTML = %s\n", charsetUpperStr.get());
|
|
#endif
|
|
return;
|
|
}
|
|
str.AssignLiteral("UNKNOWN");
|
|
}
|
|
|
|
static void
|
|
DispatchSelectionNotifyEvent(GtkWidget *widget, XEvent *xevent)
|
|
{
|
|
GdkEvent event;
|
|
event.selection.type = GDK_SELECTION_NOTIFY;
|
|
event.selection.window = gtk_widget_get_window(widget);
|
|
event.selection.selection = gdk_x11_xatom_to_atom(xevent->xselection.selection);
|
|
event.selection.target = gdk_x11_xatom_to_atom(xevent->xselection.target);
|
|
event.selection.property = gdk_x11_xatom_to_atom(xevent->xselection.property);
|
|
event.selection.time = xevent->xselection.time;
|
|
|
|
gtk_widget_event(widget, &event);
|
|
}
|
|
|
|
static void
|
|
DispatchPropertyNotifyEvent(GtkWidget *widget, XEvent *xevent)
|
|
{
|
|
GdkWindow *window = gtk_widget_get_window(widget);
|
|
if ((gdk_window_get_events(window)) & GDK_PROPERTY_CHANGE_MASK) {
|
|
GdkEvent event;
|
|
event.property.type = GDK_PROPERTY_NOTIFY;
|
|
event.property.window = window;
|
|
event.property.atom = gdk_x11_xatom_to_atom(xevent->xproperty.atom);
|
|
event.property.time = xevent->xproperty.time;
|
|
event.property.state = xevent->xproperty.state;
|
|
|
|
gtk_widget_event(widget, &event);
|
|
}
|
|
}
|
|
|
|
struct checkEventContext
|
|
{
|
|
GtkWidget *cbWidget;
|
|
Atom selAtom;
|
|
};
|
|
|
|
static Bool
|
|
checkEventProc(Display *display, XEvent *event, XPointer arg)
|
|
{
|
|
checkEventContext *context = (checkEventContext *) arg;
|
|
|
|
if (event->xany.type == SelectionNotify ||
|
|
(event->xany.type == PropertyNotify &&
|
|
event->xproperty.atom == context->selAtom)) {
|
|
|
|
GdkWindow *cbWindow =
|
|
gdk_x11_window_lookup_for_display(gdk_x11_lookup_xdisplay(display),
|
|
event->xany.window);
|
|
if (cbWindow) {
|
|
GtkWidget *cbWidget = nullptr;
|
|
gdk_window_get_user_data(cbWindow, (gpointer *)&cbWidget);
|
|
if (cbWidget && GTK_IS_WIDGET(cbWidget)) {
|
|
context->cbWidget = cbWidget;
|
|
return True;
|
|
}
|
|
}
|
|
}
|
|
|
|
return False;
|
|
}
|
|
|
|
// Idle timeout for receiving selection and property notify events (microsec)
|
|
static const int kClipboardTimeout = 500000;
|
|
|
|
static gchar* CopyRetrievedData(const gchar *aData)
|
|
{
|
|
return g_strdup(aData);
|
|
}
|
|
|
|
static GtkSelectionData* CopyRetrievedData(GtkSelectionData *aData)
|
|
{
|
|
// A negative length indicates that retrieving the data failed.
|
|
return gtk_selection_data_get_length(aData) >= 0 ?
|
|
gtk_selection_data_copy(aData) : nullptr;
|
|
}
|
|
|
|
class RetrievalContext : public RefCounted<RetrievalContext> {
|
|
public:
|
|
enum State { INITIAL, COMPLETED, TIMED_OUT };
|
|
|
|
RetrievalContext() : mState(INITIAL), mData(nullptr) {}
|
|
~RetrievalContext()
|
|
{
|
|
MOZ_ASSERT(!mData, "Wait() wasn't called");
|
|
}
|
|
|
|
/**
|
|
* Call this when data has been retrieved.
|
|
*/
|
|
template <class T> void Complete(T *aData)
|
|
{
|
|
if (mState == INITIAL) {
|
|
mState = COMPLETED;
|
|
mData = CopyRetrievedData(aData);
|
|
} else {
|
|
// Already timed out
|
|
MOZ_ASSERT(mState == TIMED_OUT);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Spins X event loop until timing out or being completed. Returns
|
|
* null if we time out, otherwise returns the completed data (passing
|
|
* ownership to caller).
|
|
*/
|
|
void *Wait();
|
|
|
|
protected:
|
|
State mState;
|
|
void* mData;
|
|
};
|
|
|
|
void *
|
|
RetrievalContext::Wait()
|
|
{
|
|
if (mState == COMPLETED) { // the request completed synchronously
|
|
void *data = mData;
|
|
mData = nullptr;
|
|
return data;
|
|
}
|
|
|
|
Display *xDisplay = GDK_DISPLAY_XDISPLAY(gdk_display_get_default()) ;
|
|
checkEventContext context;
|
|
context.cbWidget = nullptr;
|
|
context.selAtom = gdk_x11_atom_to_xatom(gdk_atom_intern("GDK_SELECTION",
|
|
FALSE));
|
|
|
|
// Send X events which are relevant to the ongoing selection retrieval
|
|
// to the clipboard widget. Wait until either the operation completes, or
|
|
// we hit our timeout. All other X events remain queued.
|
|
|
|
int select_result;
|
|
|
|
int cnumber = ConnectionNumber(xDisplay);
|
|
fd_set select_set;
|
|
FD_ZERO(&select_set);
|
|
FD_SET(cnumber, &select_set);
|
|
++cnumber;
|
|
TimeStamp start = TimeStamp::Now();
|
|
|
|
do {
|
|
XEvent xevent;
|
|
|
|
while (XCheckIfEvent(xDisplay, &xevent, checkEventProc,
|
|
(XPointer) &context)) {
|
|
|
|
if (xevent.xany.type == SelectionNotify)
|
|
DispatchSelectionNotifyEvent(context.cbWidget, &xevent);
|
|
else
|
|
DispatchPropertyNotifyEvent(context.cbWidget, &xevent);
|
|
|
|
if (mState == COMPLETED) {
|
|
void *data = mData;
|
|
mData = nullptr;
|
|
return data;
|
|
}
|
|
}
|
|
|
|
TimeStamp now = TimeStamp::Now();
|
|
struct timeval tv;
|
|
tv.tv_sec = 0;
|
|
tv.tv_usec = std::max<int32_t>(0,
|
|
kClipboardTimeout - (now - start).ToMicroseconds());
|
|
select_result = select(cnumber, &select_set, nullptr, nullptr, &tv);
|
|
} while (select_result == 1 ||
|
|
(select_result == -1 && errno == EINTR));
|
|
|
|
#ifdef DEBUG_CLIPBOARD
|
|
printf("exceeded clipboard timeout\n");
|
|
#endif
|
|
mState = TIMED_OUT;
|
|
return nullptr;
|
|
}
|
|
|
|
static void
|
|
clipboard_contents_received(GtkClipboard *clipboard,
|
|
GtkSelectionData *selection_data,
|
|
gpointer data)
|
|
{
|
|
RetrievalContext *context = static_cast<RetrievalContext*>(data);
|
|
context->Complete(selection_data);
|
|
context->Release();
|
|
}
|
|
|
|
static GtkSelectionData *
|
|
wait_for_contents(GtkClipboard *clipboard, GdkAtom target)
|
|
{
|
|
RefPtr<RetrievalContext> context = new RetrievalContext();
|
|
// Balanced by Release in clipboard_contents_received
|
|
context->AddRef();
|
|
gtk_clipboard_request_contents(clipboard, target,
|
|
clipboard_contents_received,
|
|
context.get());
|
|
return static_cast<GtkSelectionData*>(context->Wait());
|
|
}
|
|
|
|
static void
|
|
clipboard_text_received(GtkClipboard *clipboard,
|
|
const gchar *text,
|
|
gpointer data)
|
|
{
|
|
RetrievalContext *context = static_cast<RetrievalContext*>(data);
|
|
context->Complete(text);
|
|
context->Release();
|
|
}
|
|
|
|
static gchar *
|
|
wait_for_text(GtkClipboard *clipboard)
|
|
{
|
|
RefPtr<RetrievalContext> context = new RetrievalContext();
|
|
// Balanced by Release in clipboard_text_received
|
|
context->AddRef();
|
|
gtk_clipboard_request_text(clipboard, clipboard_text_received, context.get());
|
|
return static_cast<gchar*>(context->Wait());
|
|
}
|