forked from osmocom/wireshark
317 lines
10 KiB
C
317 lines
10 KiB
C
/* drag_and_drop.c
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* Drag and Drop
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "../../file.h"
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#ifdef HAVE_LIBPCAP
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#include "ui/capture.h"
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#endif
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#ifdef HAVE_LIBPCAP
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#include "ui/capture_globals.h"
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#endif
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#include "ui/recent_utils.h"
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#include "ui/simple_dialog.h"
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#include "ui/gtk/gtkglobals.h"
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#include "ui/gtk/capture_file_dlg.h"
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#include "ui/gtk/drag_and_drop.h"
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#include "ui/gtk/main.h"
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#include "ui/gtk/old-gtk-compat.h"
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#include "globals.h"
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enum { DND_TARGET_STRING, DND_TARGET_ROOTWIN, DND_TARGET_URL };
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/* convert drag and drop URI to a local filename */
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static gchar *
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dnd_uri2filename(gchar *cf_name)
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{
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gchar *src, *dest;
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gint ret;
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guint i;
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gchar esc[3];
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/* Remove URI header.
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* we have to remove the prefix to get a valid filename. */
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#ifdef _WIN32
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/*
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* On win32 (at least WinXP), this prefix looks like (UNC):
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* file:////servername/sharename/dir1/dir2/capture-file.cap
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* or (local filename):
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* file:///d:/dir1/dir2/capture-file.cap
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*/
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if (strncmp("file:////", cf_name, 9) == 0) {
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/* win32 UNC: now becoming: //servername/sharename/dir1/dir2/capture-file.cap */
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cf_name += 7;
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} else if (strncmp("file:///", cf_name, 8) == 0) {
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/* win32 local: now becoming: d:/dir1/dir2/capture-file.cap */
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cf_name += 8;
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}
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#else
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/*
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* On UNIX (at least KDE 3.0 Konqueror), this prefix looks like:
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* file:/dir1/dir2/capture-file.cap
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*
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* On UNIX (at least GNOME Nautilus 2.8.2), this prefix looks like:
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* file:///dir1/dir2/capture-file.cap
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*/
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if (strncmp("file:", cf_name, 5) == 0) {
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/* now becoming: /dir1/dir2/capture-file.cap or ///dir1/dir2/capture-file.cap */
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cf_name += 5;
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/* shorten //////thing to /thing */
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for(; cf_name[1] == '/'; ++cf_name);
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}
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#endif
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/*
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* unescape the escaped URI characters (spaces, ...)
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*
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* we have to replace escaped chars to their equivalents,
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* e.g. %20 (always a two digit hexstring) -> ' '
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* the percent character '%' is escaped be a double one "%%"
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*
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* we do this conversation "in place" as the result is always
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* equal or smaller in size.
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*/
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src = cf_name;
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dest = cf_name;
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while (*src) {
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if (*src == '%') {
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src++;
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if (*src == '%') {
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/* this is an escaped '%' char (was: "%%") */
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*dest = *src;
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src++;
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dest++;
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} else {
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/* convert escaped hexnumber to unscaped character */
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esc[0] = src[0];
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esc[1] = src[1];
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esc[2] = '\0';
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ret = sscanf(esc, "%x", &i);
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if (ret == 1) {
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src+=2;
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*dest = (gchar) i;
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dest++;
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} else {
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/* somethings wrong, just jump over that char
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* this will result in a wrong string, but we might get
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* user feedback and can fix it later ;-) */
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src++;
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}
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}
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#ifdef _WIN32
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} else if (*src == '/') {
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*dest = '\\';
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src++;
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dest++;
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#endif
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} else {
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*dest = *src;
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src++;
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dest++;
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}
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}
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*dest = '\0';
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return cf_name;
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}
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/* open/merge the dnd file */
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void
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dnd_open_file_cmd(gchar *cf_names_freeme)
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{
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int err;
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gchar *cf_name;
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int in_file_count;
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int files_work;
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char **in_filenames;
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char *tmpname;
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if (cf_names_freeme == NULL) return;
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/* DND_TARGET_URL:
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* The cf_name_freeme is a single string, containing one or more URI's,
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* terminated by CR/NL chars. The length of the whole field can be found
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* in the selection_data->length field. If it contains one file, simply open it,
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* If it contains more than one file, ask to merge these files. */
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/* count the number of input files */
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cf_name = cf_names_freeme;
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for(in_file_count = 0; (cf_name = strstr(cf_name, "\r\n")) != NULL; ) {
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cf_name += 2;
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in_file_count++;
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}
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if (in_file_count == 0) {
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g_free(cf_names_freeme);
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return;
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}
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in_filenames = (char **)g_malloc(sizeof(char*) * in_file_count);
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/* store the starts of the file entries in a gchar array */
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cf_name = cf_names_freeme;
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in_filenames[0] = cf_name;
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for(files_work = 1; (cf_name = strstr(cf_name, "\r\n")) != NULL && files_work < in_file_count; ) {
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cf_name += 2;
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in_filenames[files_work] = cf_name;
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files_work++;
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}
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/* replace trailing CR NL simply with zeroes (in place), so we get valid terminated strings */
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cf_name = cf_names_freeme;
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g_strdelimit(cf_name, "\r\n", '\0');
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/* convert all filenames from URI to local filename (in place) */
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for(files_work = 0; files_work < in_file_count; files_work++) {
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in_filenames[files_work] = dnd_uri2filename(in_filenames[files_work]);
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}
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if (in_file_count == 1) {
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/* open and read the capture file (this will close an existing file) */
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if (cf_open(&cfile, in_filenames[0], WTAP_TYPE_AUTO, FALSE, &err) == CF_OK) {
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/* XXX - add this to the menu if the read fails? */
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cf_read(&cfile, FALSE);
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add_menu_recent_capture_file(in_filenames[0]);
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} else {
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/* the capture file couldn't be read (doesn't exist, file format unknown, ...) */
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}
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} else {
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/* merge the files in chronological order */
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if (cf_merge_files_to_tempfile(top_level, &tmpname, in_file_count, in_filenames,
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WTAP_FILE_TYPE_SUBTYPE_PCAPNG, FALSE) == CF_OK) {
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/* Merge succeeded; close the currently-open file and try
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to open the merged capture file. */
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cf_close(&cfile);
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if (cf_open(&cfile, tmpname, WTAP_TYPE_AUTO, TRUE /* temporary file */, &err) == CF_OK) {
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g_free(tmpname);
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cf_read(&cfile, FALSE);
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} else {
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/* The merged file couldn't be read. */
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g_free(tmpname);
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}
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} else {
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/* merge failed */
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g_free(tmpname);
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}
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}
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g_free(in_filenames);
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g_free(cf_names_freeme);
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}
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/* we have received some drag and drop data */
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/* (as we only registered to "text/uri-list", we will only get a file list here) */
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static void
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dnd_data_received(GtkWidget *widget _U_, GdkDragContext *dc _U_, gint x _U_, gint y _U_,
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GtkSelectionData *selection_data, guint info, guint t _U_, gpointer data _U_)
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{
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gchar *cf_names_freeme;
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const guchar *sel_data_data;
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gint sel_data_len;
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if (info == DND_TARGET_URL) {
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/* Usually we block incoming events by disabling the corresponding menu/toolbar items.
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* This is the only place where an incoming event won't be blocked in such a way,
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* so we have to take care of NOT loading a new file while a different process
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* (e.g. capture/load/...) is still in progress. */
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#ifdef HAVE_LIBPCAP
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/* if a capture is running, do nothing but warn the user */
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if((global_capture_session.state != CAPTURE_STOPPED)) {
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simple_dialog(ESD_TYPE_CONFIRMATION,
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ESD_BTN_OK,
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"%sDrag and Drop currently not possible.%s\n\n"
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"Dropping a file isn't possible while a capture is in progress.",
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simple_dialog_primary_start(), simple_dialog_primary_end());
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return;
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}
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#endif
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/* if another file read is still in progress, do nothing but warn the user */
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if(cfile.state == FILE_READ_IN_PROGRESS) {
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simple_dialog(ESD_TYPE_CONFIRMATION,
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ESD_BTN_OK,
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"%sDrag and Drop currently not possible.%s\n\n"
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"Dropping a file isn't possible while loading another capture file.",
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simple_dialog_primary_start(), simple_dialog_primary_end());
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return;
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}
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/* the selection_data will soon be gone, make a copy first */
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/* the data string is not zero terminated -> make a zero terminated "copy" of it */
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sel_data_len = gtk_selection_data_get_length(selection_data);
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sel_data_data = gtk_selection_data_get_data(selection_data);
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cf_names_freeme = (gchar *)g_malloc(sel_data_len + 1);
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memcpy(cf_names_freeme, sel_data_data, sel_data_len);
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cf_names_freeme[sel_data_len] = '\0';
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/* If there's unsaved data, let the user save it first.
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If they cancel out of it, don't open the file. */
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if (do_file_close(&cfile, FALSE, " before opening a new capture file"))
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dnd_open_file_cmd(cf_names_freeme);
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}
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}
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/* init the drag and drop functionality */
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void
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dnd_init(GtkWidget *w)
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{
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/* we are only interested in the URI list containing filenames */
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static GtkTargetEntry target_entry[] = {
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/*{"STRING", 0, DND_TARGET_STRING},*/
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/*{"text/plain", 0, DND_TARGET_STRING},*/
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{"text/uri-list", 0, DND_TARGET_URL}
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};
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/* set this window as a dnd destination */
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gtk_drag_dest_set(
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w, GTK_DEST_DEFAULT_ALL, target_entry,
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sizeof(target_entry) / sizeof(GtkTargetEntry),
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(GdkDragAction)(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
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/* get notified, if some dnd coming in */
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g_signal_connect(w, "drag_data_received", G_CALLBACK(dnd_data_received), NULL);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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