![Peter Wu](/assets/img/avatar_default.png)
The GDK_KEY_* names are part of GTK+ 3, GTK+ 2 does not have the _KEY_ infix. See https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html#id-1.6.3.3.6 Fixes regression from "ui/gtk: fix control combos such as ctrl-a, ctrl-c". Change-Id: I4d470212d172f978c171e54ff7377ddc211817ac Reviewed-on: https://code.wireshark.org/review/7325 Reviewed-by: Balint Reczey <balint@balintreczey.hu>
900 lines
29 KiB
C
900 lines
29 KiB
C
/* filter_autocomplete.h
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* Definitions for filter autocomplete
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*
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* Copyright 2008, Bahaa Naamneh <b.naamneh@gmail.com>
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*
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* With several usability improvements:
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* Copyright 2008, Stig Bjorlykke <stig@bjorlykke.org>
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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 <glib.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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#if GTK_CHECK_VERSION(3,0,0)
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# include <gdk/gdkkeysyms-compat.h>
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#endif
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#include <epan/proto.h>
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#include "ui/gtk/gui_utils.h"
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#include "ui/gtk/filter_autocomplete.h"
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#include "ui/gtk/old-gtk-compat.h"
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#define E_FILT_AUTOCOMP_TREE_KEY "filter_autocomplete_tree"
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static GtkWidget *filter_autocomplete_new(GtkWidget *filter_te, const gchar *protocol_name,
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gboolean protocols_only, gboolean *stop_propagation);
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static void autocomplete_protocol_string(GtkWidget *filter_te, gchar* selected_str);
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static void autoc_filter_row_activated_cb(GtkTreeView *treeview, GtkTreePath *path,
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GtkTreeViewColumn *column, gpointer data);
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static gboolean filter_te_focus_out_cb(GtkWidget *filter_te, GdkEvent *event, gpointer data);
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static void init_autocompletion_list(GtkWidget *list);
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static void add_to_autocompletion_list(GtkWidget *list, const gchar *str);
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static gboolean autocompletion_list_lookup(GtkWidget *filter_te, GtkWidget *popup_win, GtkWidget *list,
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const gchar *str, gboolean *stop_propagation);
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static void filter_autocomplete_handle_backspace(GtkWidget *filter_te, GtkWidget *list, GtkWidget *popup_win,
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gchar *prefix, GtkWidget *main_win);
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static void filter_autocomplete_win_destroy_cb(GtkWidget *win, gpointer data);
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static gboolean is_protocol_name_being_typed(GtkWidget *filter_te, int str_len);
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/*
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* Check if the string at the cursor position is a beginning of a protocol name.
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* Possible false positives:
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* "NOT" at the beginning of the display filter editable text.
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* "NOT" adjacent to another logical operation. (e.g: exp1 AND NOT exp2).
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**/
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static gboolean
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is_protocol_name_being_typed(GtkWidget *filter_te, int str_len)
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{
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unsigned int i;
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int op_len, cursor_pos;
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gchar *start;
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gchar *pos;
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static const gchar *logic_ops[] =
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{ "!", "not",
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"||", "or",
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"&&", "and",
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"^^", "xor" };
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/* If the cursor is located at the beginning of the filter editable text,
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* then it's _probably_ a protocol name.
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**/
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if(!(cursor_pos = gtk_editable_get_position(GTK_EDITABLE(filter_te))))
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return TRUE;
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start = gtk_editable_get_chars(GTK_EDITABLE(filter_te), 0, (gint) cursor_pos);
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/* Point to one char before the current string in the filter editable text */
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pos = start + (cursor_pos - str_len);
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/* Walk back through string to find last char which isn't ' ' or '(' */
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while(pos > start) {
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if(*pos != ' ' && *pos != '(') {
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/* Check if we have one of the logical operations */
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for(i = 0; i < (sizeof(logic_ops)/sizeof(logic_ops[0])); i++) {
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op_len = (int) strlen(logic_ops[i]);
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if(pos-start+1 < op_len)
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continue;
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/* If one of the logical operations is found, then the current string is _probably_ a protocol name */
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if(!strncmp(pos-op_len+1, logic_ops[i], op_len)) {
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g_free (start);
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return TRUE;
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}
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}
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/* If none of the logical operations was found, then the current string is not a protocol */
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g_free (start);
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return FALSE;
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}
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pos--;
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}
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/* The "str" preceded only by ' ' or '(' chars,
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* which means that the str is _probably_ a protocol name.
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**/
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g_free (start);
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return TRUE;
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}
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static void
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autocomplete_protocol_string(GtkWidget *filter_te, gchar *selected_str)
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{
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int pos;
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gchar *filter_str;
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gchar *pch;
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/* Get the current filter string */
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pos = gtk_editable_get_position(GTK_EDITABLE(filter_te));
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filter_str = gtk_editable_get_chars(GTK_EDITABLE(filter_te), 0, pos);
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/* Start from the end */
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pch = filter_str + strlen(filter_str);
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/* Walk back through string to find last non-punctuation */
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while(pch != filter_str) {
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pch--;
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if(!g_ascii_isalnum(*pch) && (*pch) != '.' && (*pch) != '_' && (*pch) != '-') {
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pch++;
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break;
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}
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}
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if(strncmp(pch, selected_str, pos-(pch-filter_str))) {
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gtk_editable_delete_text(GTK_EDITABLE(filter_te), (gint) (pch-filter_str), pos);
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pos = (int) (pch-filter_str);
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pch = selected_str;
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} else {
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pch = (selected_str + strlen(pch));
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}
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gtk_editable_insert_text(GTK_EDITABLE(filter_te), pch, (gint) strlen(pch), &pos);
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gtk_editable_set_position(GTK_EDITABLE(filter_te), pos);
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g_free (filter_str);
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}
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/* On row activated signal, complete the protocol string automatically */
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static void
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autoc_filter_row_activated_cb(GtkTreeView *treeview,
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GtkTreePath *path,
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GtkTreeViewColumn *column _U_,
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gpointer data)
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{
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GtkWidget *w_main;
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GtkTreeModel *model;
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GtkTreeIter iter;
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GtkWidget *win;
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gchar *proto;
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model = gtk_tree_view_get_model(treeview);
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if (gtk_tree_model_get_iter(model, &iter, path)) {
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gtk_tree_model_get(model, &iter, 0, &proto, -1);
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autocomplete_protocol_string(GTK_WIDGET(data), proto);
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g_free (proto);
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}
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w_main = gtk_widget_get_toplevel(GTK_WIDGET(data));
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win = (GtkWidget *)g_object_get_data(G_OBJECT(w_main), E_FILT_AUTOCOMP_PTR_KEY);
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if(win != NULL) {
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gtk_widget_destroy(win);
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g_object_set_data(G_OBJECT(w_main), E_FILT_AUTOCOMP_PTR_KEY, NULL);
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}
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}
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static gboolean
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filter_te_focus_out_cb(GtkWidget *filter_te _U_,
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GdkEvent *event _U_,
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gpointer data)
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{
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GtkWidget *win;
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win = (GtkWidget *)g_object_get_data(G_OBJECT(data), E_FILT_AUTOCOMP_PTR_KEY);
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if(win != NULL) {
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gtk_widget_destroy(win);
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g_object_set_data(G_OBJECT(data), E_FILT_AUTOCOMP_PTR_KEY, NULL);
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}
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return FALSE;
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}
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static gboolean
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check_select_region (GtkWidget *filter_te, GtkWidget *popup_win,
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const gchar *string, unsigned int str_len)
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{
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gint pos1 = gtk_editable_get_position(GTK_EDITABLE(filter_te));
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gint pos2 = pos1 + (gint) strlen(string) - str_len;
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gint pos3 = pos1;
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if (pos2 > pos1) {
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gtk_editable_insert_text(GTK_EDITABLE(filter_te), &string[str_len-1],
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pos2-pos1+1, &pos3);
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gtk_editable_set_position(GTK_EDITABLE(filter_te), pos1+1);
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gtk_editable_select_region(GTK_EDITABLE(filter_te), pos1+1, pos2+1);
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gtk_widget_hide (popup_win);
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return TRUE;
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}
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return FALSE;
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}
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static void
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init_autocompletion_list(GtkWidget *list)
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{
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GtkCellRenderer *renderer;
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GtkTreeViewColumn *column;
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GtkListStore *store;
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renderer = gtk_cell_renderer_text_new();
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column = gtk_tree_view_column_new_with_attributes(NULL, renderer, "text", 0, NULL);
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gtk_tree_view_append_column(GTK_TREE_VIEW(list), column);
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gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(list), FALSE);
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store = gtk_list_store_new(1, G_TYPE_STRING);
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gtk_tree_view_set_model(GTK_TREE_VIEW(list), GTK_TREE_MODEL(store));
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g_object_unref(store);
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}
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static void
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add_to_autocompletion_list(GtkWidget *list, const gchar *str)
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{
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GtkListStore *store;
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GtkTreeIter iter;
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store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(list)));
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gtk_list_store_append(store, &iter);
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gtk_list_store_set(store, &iter, 0, str, -1);
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}
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static gboolean
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autocompletion_list_lookup(GtkWidget *filter_te, GtkWidget *popup_win, GtkWidget *list,
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const gchar *str, gboolean *stop_propagation)
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{
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GtkRequisition requisition;
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GtkListStore *store;
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GtkTreeIter iter;
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GtkAllocation popup_win_alloc;
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gchar *curr_str;
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unsigned int str_len = (unsigned int) strlen(str);
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gchar *first = NULL;
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gint count = 0;
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gboolean loop = TRUE;
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gboolean exact_match = FALSE;
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store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(list)));
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if( gtk_tree_model_get_iter_first(GTK_TREE_MODEL(store), &iter) ) {
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do {
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gtk_tree_model_get(GTK_TREE_MODEL(store), &iter, 0, &curr_str, -1);
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if( !g_ascii_strncasecmp(str, curr_str, str_len) ) {
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loop = gtk_tree_model_iter_next(GTK_TREE_MODEL(store), &iter);
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if (strlen(curr_str) == str_len) {
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exact_match = TRUE;
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}
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count++;
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if (count == 1)
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first = g_strdup (curr_str);
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} else {
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loop = gtk_list_store_remove(store, &iter);
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}
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g_free(curr_str);
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} while( loop );
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if (count == 1 && !exact_match && strncmp(str, first, str_len) == 0) {
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/* Only one match (not exact) with correct case */
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*stop_propagation = check_select_region(filter_te, popup_win, first, str_len);
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}
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/* Don't show an autocompletion-list with only one entry with exact match */
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if ((count == 1 && exact_match && strncmp(str, first, str_len) == 0) ||
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!gtk_tree_model_get_iter_first(GTK_TREE_MODEL(store), &iter))
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{
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g_free (first);
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return FALSE;
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}
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g_free (first);
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gtk_tree_view_columns_autosize(GTK_TREE_VIEW(list));
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#if GTK_CHECK_VERSION(3,0,0)
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gtk_widget_get_preferred_size(list, &requisition, NULL);
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#else
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gtk_widget_size_request(list, &requisition);
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#endif
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gtk_widget_get_allocation(popup_win, &popup_win_alloc);
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gtk_widget_set_size_request(popup_win, popup_win_alloc.width,
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(requisition.height<200? requisition.height+8:200));
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gtk_window_resize(GTK_WINDOW(popup_win), popup_win_alloc.width,
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(requisition.height<200? requisition.height+8:200));
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return TRUE;
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}
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return FALSE;
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}
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gboolean
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filter_string_te_key_pressed_cb(GtkWidget *filter_te, GdkEventKey *event, gpointer user_data _U_)
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{
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GtkWidget *popup_win;
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GtkWidget *w_toplevel;
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GtkWidget *treeview;
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GtkTreeModel *model;
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GtkTreePath *path;
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GtkTreeSelection *selection;
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GtkTreeIter iter;
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gchar* prefix;
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gchar* prefix_start = NULL;
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gboolean stop_propagation = FALSE;
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guint k;
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guint32 ckey = '\0';
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gint string_buf_len;
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gchar string_buf[6]; /* g_unichar_to_utf8 needs 6 bytes to convert a single
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char to a code point. (ISO/IEC 10646 defines this
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maximum byte length, RFC 3629 changed this to 4) */
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gchar *key_string = NULL;
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gint pos;
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w_toplevel = gtk_widget_get_toplevel(filter_te);
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popup_win = (GtkWidget *)g_object_get_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY);
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k = event->keyval;
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if (k != GDK_VoidSymbol) {
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ckey = gdk_keyval_to_unicode(k);
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string_buf_len = g_unichar_to_utf8(ckey, string_buf);
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key_string =
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g_locale_from_utf8(string_buf, string_buf_len, NULL, NULL, NULL);
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}
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if (!key_string)
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key_string = g_strdup("");
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/* Ignore Ctrl combinations (Ctrl-C, Ctrl-V, Ctrl-Right, ...). */
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if (event->state & GDK_CONTROL_MASK)
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goto exit;
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/* Pressing modifiers such as Shift or Ctrl should not hide the list. */
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switch (k) {
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case GDK_Shift_L:
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case GDK_Shift_R:
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case GDK_Control_L:
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case GDK_Control_R:
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goto exit;
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}
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if (popup_win)
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gtk_widget_show(popup_win);
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pos = gtk_editable_get_position(GTK_EDITABLE(filter_te));
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if (g_ascii_isalnum(ckey) ||
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k == GDK_KP_Decimal || k == GDK_period ||
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k == GDK_underscore || k == GDK_minus)
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{
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/* Ensure we delete the selected text */
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gtk_editable_delete_selection(GTK_EDITABLE(filter_te));
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} else if (k == GDK_Return || k == GDK_KP_Enter) {
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/* Remove selection */
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gtk_editable_select_region(GTK_EDITABLE(filter_te), pos, pos);
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}
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/* get the string from filter_te, start from 0 till cursor's position */
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prefix_start = gtk_editable_get_chars(GTK_EDITABLE(filter_te), 0, pos);
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/* If the pressed key is non-alphanumeric or one of the keys specified
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* in the condition (decimal, period...) then destroy popup window.
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**/
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if( !g_ascii_isalnum(ckey) &&
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k != GDK_KP_Decimal && k != GDK_period &&
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k != GDK_underscore && k != GDK_minus &&
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k != GDK_space && k != GDK_Return && k != GDK_KP_Enter &&
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k != GDK_Page_Down && k != GDK_Down && k != GDK_Page_Up && k != GDK_Up &&
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k != GDK_BackSpace)
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{
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if (popup_win) {
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gtk_widget_destroy(popup_win);
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g_object_set_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY, NULL);
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}
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return FALSE;
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}
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/* Let prefix points to the first char that is not aphanumeric,'.', '_' or '-',
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* start from the end of filter_te_str.
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**/
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prefix = prefix_start + strlen(prefix_start);
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while(prefix != prefix_start) {
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prefix--;
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if(!g_ascii_isalnum((*prefix)) && (*prefix) != '.' && (*prefix) != '_' && (*prefix) != '-') {
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prefix++;
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break;
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}
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}
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/* Now, if the pressed key is decimal or period, and there is no period or
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* decimal before it in prefix then construct the popup window.
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*
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* If the pressed key is backspace, and there is no existing popup window
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* then construct the popup window again.
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**/
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if(k==GDK_period || k==GDK_KP_Decimal) {
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if( !strchr(prefix, '.') || !popup_win) {
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gchar* name_with_period;
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if (popup_win) {
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gtk_widget_destroy (popup_win);
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}
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name_with_period = g_strconcat(prefix, key_string, NULL);
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popup_win = filter_autocomplete_new(filter_te, name_with_period, FALSE, &stop_propagation);
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g_object_set_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY, popup_win);
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g_free(name_with_period);
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goto exit;
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}
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} else if(k==GDK_BackSpace && !popup_win) {
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if(strlen(prefix) > 1) {
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/* Delete the last character in the prefix string */
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prefix[strlen(prefix)-1] = '\0';
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if(strchr(prefix, '.')) {
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popup_win = filter_autocomplete_new(filter_te, prefix, FALSE, NULL);
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g_object_set_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY, popup_win);
|
|
} else if(strlen(prefix) && is_protocol_name_being_typed(filter_te, (int) strlen(prefix)+2)) {
|
|
popup_win = filter_autocomplete_new(filter_te, prefix, TRUE, NULL);
|
|
g_object_set_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY, popup_win);
|
|
}
|
|
}
|
|
|
|
goto exit;
|
|
} else if(g_ascii_isalnum(ckey) && !popup_win) {
|
|
gchar *name = g_strconcat(prefix, key_string, NULL);
|
|
|
|
if( !strchr(name, '.') && is_protocol_name_being_typed(filter_te, (int) strlen(name)) ) {
|
|
popup_win = filter_autocomplete_new(filter_te, name, TRUE, &stop_propagation);
|
|
g_object_set_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY, popup_win);
|
|
}
|
|
|
|
g_free(name);
|
|
|
|
goto exit;
|
|
}
|
|
|
|
/* If the popup window hasn't been constructed yet then we have nothing to do */
|
|
if( !popup_win ) {
|
|
stop_propagation = FALSE;
|
|
goto exit;
|
|
}
|
|
|
|
|
|
treeview = (GtkWidget *)g_object_get_data(G_OBJECT(popup_win), E_FILT_AUTOCOMP_TREE_KEY);
|
|
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
|
|
model = gtk_tree_view_get_model(GTK_TREE_VIEW(treeview));
|
|
|
|
switch(k)
|
|
{
|
|
/* a better implementation for UP/DOWN keys would be moving the control to the popup'ed window, and letting
|
|
* the treeview handle the up, down actions directly and return the control to the filter text once
|
|
* the user press Enter or any key except for UP, DOWN arrows. * I wasn't able to find a way to do that. *
|
|
**/
|
|
case GDK_Page_Down:
|
|
case GDK_Down:
|
|
if (gtk_tree_selection_get_selected(selection, &model, &iter)) {
|
|
if (gtk_tree_model_iter_next(model, &iter)) {
|
|
if (k == GDK_Page_Down) {
|
|
/* Skip up to 8 entries */
|
|
GtkTreeIter last_iter;
|
|
gint count = 0;
|
|
do {
|
|
last_iter = iter;
|
|
} while (++count < 8 && gtk_tree_model_iter_next(model, &iter));
|
|
iter = last_iter;
|
|
}
|
|
gtk_tree_selection_select_iter(GTK_TREE_SELECTION(selection), &iter);
|
|
path = gtk_tree_model_get_path(model, &iter);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), path,
|
|
NULL, FALSE, 0, 0);
|
|
gtk_tree_path_free(path);
|
|
} else {
|
|
gtk_tree_selection_unselect_all(selection);
|
|
}
|
|
} else if (gtk_tree_model_get_iter_first(model, &iter)) {
|
|
gtk_tree_selection_select_iter(GTK_TREE_SELECTION(selection), &iter);
|
|
path = gtk_tree_model_get_path(model, &iter);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), path,
|
|
NULL, FALSE, 0, 0);
|
|
gtk_tree_path_free(path);
|
|
}
|
|
|
|
/* stop event propagation */
|
|
stop_propagation = TRUE;
|
|
goto exit;
|
|
|
|
case GDK_Page_Up:
|
|
case GDK_Up:
|
|
{
|
|
GtkTreeIter last_iter;
|
|
|
|
if (gtk_tree_selection_get_selected(selection, &model, &iter) ) {
|
|
path = gtk_tree_model_get_path(model, &iter);
|
|
|
|
if (gtk_tree_path_prev(path)) {
|
|
if (k == GDK_Page_Up) {
|
|
/* Skip up to 8 entries */
|
|
GtkTreePath *last_path;
|
|
gint count = 0;
|
|
do {
|
|
last_path = path;
|
|
} while (++count < 8 && gtk_tree_path_prev(path));
|
|
path = last_path;
|
|
}
|
|
gtk_tree_selection_select_path(GTK_TREE_SELECTION(selection), path);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), path, NULL, FALSE, 0, 0);
|
|
} else {
|
|
gtk_tree_selection_unselect_iter(selection, &iter);
|
|
}
|
|
gtk_tree_path_free(path);
|
|
} else if (gtk_tree_model_get_iter_first(model, &iter)) {
|
|
do {
|
|
last_iter = iter;
|
|
} while (gtk_tree_model_iter_next(model, &iter));
|
|
gtk_tree_selection_select_iter(GTK_TREE_SELECTION(selection), &last_iter);
|
|
path = gtk_tree_model_get_path(model, &last_iter);
|
|
gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), path,
|
|
NULL, FALSE, 0, 0);
|
|
gtk_tree_path_free(path);
|
|
}
|
|
|
|
/* stop event propagation */
|
|
stop_propagation = TRUE;
|
|
goto exit;
|
|
}
|
|
|
|
|
|
/* if pressed key is Space or Enter then autocomplete protocol string */
|
|
case GDK_space:
|
|
case GDK_Return:
|
|
case GDK_KP_Enter:
|
|
|
|
if(gtk_tree_selection_get_selected(selection, &model, &iter) ) {
|
|
gchar *value;
|
|
|
|
/* Do not autocomplete protocols with space yet, because we can be in
|
|
* a operator or a value field.
|
|
**/
|
|
if(k != GDK_space || strchr(prefix, '.')) {
|
|
/* Use chosen string */
|
|
gtk_tree_model_get(model, &iter, 0, &value, -1);
|
|
autocomplete_protocol_string(filter_te, value);
|
|
g_free(value);
|
|
}
|
|
if(k != GDK_space) {
|
|
stop_propagation = TRUE; /* stop event propagation */
|
|
}
|
|
}
|
|
|
|
/* Lose popup */
|
|
gtk_widget_destroy(popup_win);
|
|
g_object_set_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY, NULL);
|
|
break;
|
|
|
|
case GDK_BackSpace:
|
|
filter_autocomplete_handle_backspace(filter_te, treeview, popup_win, prefix, w_toplevel);
|
|
break;
|
|
|
|
default: {
|
|
gchar* updated_str;
|
|
|
|
updated_str = g_strconcat(prefix, key_string, NULL);
|
|
if( !autocompletion_list_lookup(filter_te, popup_win, treeview, updated_str, &stop_propagation) ) {
|
|
/* function returned false, ie the list is empty -> close popup */
|
|
gtk_widget_destroy(popup_win);
|
|
g_object_set_data(G_OBJECT(w_toplevel), E_FILT_AUTOCOMP_PTR_KEY, NULL);
|
|
}
|
|
|
|
g_free(updated_str);
|
|
}
|
|
|
|
}
|
|
|
|
exit:
|
|
g_free(prefix_start);
|
|
g_free(key_string);
|
|
|
|
return stop_propagation;
|
|
}
|
|
|
|
/*
|
|
* In my implementation, I'm looking for fields that match the protocol name in the whole fields list
|
|
* and not only restrict the process by returning all the fields of the protocol that match the prefix using
|
|
* 'proto_get_id_by_filter_name(protocol_name)'; because I have noticed that some of the fields
|
|
* have a prefix different than its parent protocol; for example SIP protocol had this field raw_sip.line despite
|
|
* that there is a protocol called RAW_SIP which it should be associated with it.
|
|
* so the unorganized fields and nonexistent of a standardized protocols and fields naming rules prevent me from
|
|
* implementing the autocomplete in an optimized way.
|
|
**/
|
|
static gboolean
|
|
build_autocompletion_list(GtkWidget *filter_te, GtkWidget *treeview, GtkWidget *popup_win,
|
|
const gchar *protocol_name, gboolean protocols_only, gboolean *stop_propagation)
|
|
{
|
|
void *cookie, *cookie2;
|
|
protocol_t *protocol;
|
|
unsigned int protocol_name_len;
|
|
header_field_info *hfinfo;
|
|
gint count = 0;
|
|
gboolean exact_match = FALSE;
|
|
const gchar *first = NULL;
|
|
int i;
|
|
|
|
protocol_name_len = (unsigned int) strlen(protocol_name);
|
|
|
|
/* Force load protocol fields, if not already done */
|
|
if(protocol_name[protocol_name_len-1] == '.')
|
|
proto_registrar_get_byname(protocol_name);
|
|
|
|
/* Walk protocols list */
|
|
for (i = proto_get_first_protocol(&cookie); i != -1; i = proto_get_next_protocol(&cookie)) {
|
|
|
|
protocol = find_protocol_by_id(i);
|
|
|
|
if (!proto_is_protocol_enabled(protocol))
|
|
continue;
|
|
|
|
if (protocols_only) {
|
|
const gchar *name = proto_get_protocol_filter_name (i);
|
|
|
|
if (!g_ascii_strncasecmp(protocol_name, name, protocol_name_len)) {
|
|
add_to_autocompletion_list(treeview, name);
|
|
if (strlen(name) == protocol_name_len) {
|
|
exact_match = TRUE;
|
|
}
|
|
count++;
|
|
if (count == 1)
|
|
first = name;
|
|
}
|
|
} else {
|
|
|
|
for (hfinfo = proto_get_first_protocol_field(i, &cookie2);
|
|
hfinfo != NULL;
|
|
hfinfo = proto_get_next_protocol_field(i, &cookie2))
|
|
{
|
|
if (hfinfo->same_name_prev_id != -1) /* ignore duplicate names */
|
|
continue;
|
|
|
|
if(!g_ascii_strncasecmp(protocol_name, hfinfo->abbrev, protocol_name_len)) {
|
|
add_to_autocompletion_list(treeview, hfinfo->abbrev);
|
|
if (strlen(hfinfo->abbrev) == protocol_name_len) {
|
|
exact_match = TRUE;
|
|
}
|
|
count++;
|
|
if (count == 1)
|
|
first = hfinfo->abbrev;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (count == 1 && !exact_match && stop_propagation &&
|
|
strncmp(protocol_name, first, protocol_name_len) == 0)
|
|
{
|
|
/* Only one match (not exact) with correct case */
|
|
*stop_propagation = check_select_region(filter_te, popup_win, first, protocol_name_len);
|
|
}
|
|
|
|
/* Don't show an empty autocompletion-list or
|
|
* an autocompletion-list with only one entry with exact match
|
|
**/
|
|
if (count == 0 || (count == 1 && exact_match &&
|
|
strncmp(protocol_name, first, protocol_name_len) == 0))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
filter_autocomplete_disable_sorting(GtkTreeModel *model)
|
|
{
|
|
gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(model),
|
|
GTK_TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID, GTK_SORT_ASCENDING);
|
|
}
|
|
|
|
static void
|
|
filter_autocomplete_enable_sorting(GtkTreeModel *model)
|
|
{
|
|
gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(model), 0, GTK_SORT_ASCENDING);
|
|
}
|
|
|
|
static GtkWidget *
|
|
filter_autocomplete_new(GtkWidget *filter_te, const gchar *protocol_name,
|
|
gboolean protocols_only, gboolean *stop_propagation)
|
|
{
|
|
GtkWidget *popup_win;
|
|
GtkWidget *treeview;
|
|
GtkWidget *filter_sc;
|
|
gint x_pos, y_pos;
|
|
GtkTreeModel *model;
|
|
GtkTreeSelection *selection;
|
|
GtkRequisition requisition;
|
|
GtkWidget *w_toplevel;
|
|
GtkAllocation filter_te_alloc;
|
|
|
|
w_toplevel = gtk_widget_get_toplevel(filter_te);
|
|
|
|
/* Create popup window */
|
|
popup_win = gtk_window_new (GTK_WINDOW_POPUP);
|
|
|
|
/* Create scrolled window */
|
|
filter_sc = scrolled_window_new(NULL, NULL);
|
|
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (filter_sc), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
|
|
gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(filter_sc), GTK_SHADOW_IN);
|
|
gtk_container_add(GTK_CONTAINER(popup_win), filter_sc);
|
|
|
|
/* Create tree view */
|
|
treeview = gtk_tree_view_new();
|
|
gtk_tree_view_set_hover_selection(GTK_TREE_VIEW(treeview), TRUE);
|
|
init_autocompletion_list(treeview);
|
|
g_object_set_data(G_OBJECT(popup_win), E_FILT_AUTOCOMP_TREE_KEY, treeview);
|
|
|
|
/* Build list */
|
|
if (!build_autocompletion_list(filter_te, treeview, popup_win, protocol_name, protocols_only, stop_propagation)) {
|
|
gtk_widget_destroy(popup_win);
|
|
return NULL;
|
|
}
|
|
|
|
/* Sort treeview */
|
|
model = gtk_tree_view_get_model(GTK_TREE_VIEW(treeview));
|
|
if(model)
|
|
filter_autocomplete_enable_sorting(model);
|
|
|
|
gtk_container_add (GTK_CONTAINER (filter_sc), treeview);
|
|
|
|
g_signal_connect(treeview, "row-activated", G_CALLBACK(autoc_filter_row_activated_cb), filter_te);
|
|
g_signal_connect(filter_te, "focus-out-event", G_CALLBACK(filter_te_focus_out_cb), w_toplevel);
|
|
g_signal_connect(popup_win, "destroy", G_CALLBACK(filter_autocomplete_win_destroy_cb), NULL);
|
|
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_widget_get_preferred_size(treeview, &requisition, NULL);
|
|
#else
|
|
gtk_widget_size_request(treeview, &requisition);
|
|
#endif
|
|
gtk_widget_get_allocation(filter_te, &filter_te_alloc);
|
|
|
|
gtk_widget_set_size_request(popup_win, filter_te_alloc.width,
|
|
(requisition.height<200? requisition.height+8:200));
|
|
gtk_window_resize(GTK_WINDOW(popup_win), filter_te_alloc.width,
|
|
(requisition.height<200? requisition.height+8:200));
|
|
|
|
gdk_window_get_origin(gtk_widget_get_window(filter_te), &x_pos, &y_pos);
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
x_pos += filter_te_alloc.x;
|
|
y_pos += (filter_te_alloc.y + filter_te_alloc.height);
|
|
#else
|
|
y_pos += filter_te_alloc.height;
|
|
#endif
|
|
gtk_window_move(GTK_WINDOW(popup_win), x_pos, y_pos);
|
|
|
|
gtk_widget_show_all (popup_win);
|
|
|
|
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
|
|
gtk_tree_selection_unselect_all(selection);
|
|
|
|
return popup_win;
|
|
}
|
|
|
|
static void
|
|
filter_autocomplete_handle_backspace(GtkWidget *filter_te, GtkWidget *list, GtkWidget *popup_win,
|
|
gchar *prefix, GtkWidget *main_win)
|
|
{
|
|
GtkTreeModel *model;
|
|
GtkListStore *store;
|
|
GtkRequisition requisition;
|
|
size_t prefix_len;
|
|
gboolean protocols_only = FALSE;
|
|
GtkAllocation popup_win_alloc;
|
|
|
|
prefix_len = strlen(prefix);
|
|
|
|
if (prefix_len <= 1) {
|
|
/* Remove the popup window for protocols */
|
|
gtk_widget_destroy(popup_win);
|
|
g_object_set_data(G_OBJECT(main_win), E_FILT_AUTOCOMP_PTR_KEY, NULL);
|
|
return;
|
|
}
|
|
|
|
/* Delete the last character in the prefix string */
|
|
prefix_len--;
|
|
prefix[prefix_len] = '\0';
|
|
|
|
if(strchr(prefix, '.') == NULL) {
|
|
protocols_only = TRUE;
|
|
}
|
|
|
|
/* Empty list */
|
|
model = gtk_tree_view_get_model(GTK_TREE_VIEW(list));
|
|
store = GTK_LIST_STORE(model);
|
|
gtk_list_store_clear(store);
|
|
|
|
/* Disable sorting */
|
|
filter_autocomplete_disable_sorting(model);
|
|
|
|
/* Build new list */
|
|
if (!build_autocompletion_list(filter_te, list, popup_win, prefix, protocols_only, NULL)) {
|
|
gtk_widget_destroy(popup_win);
|
|
g_object_set_data(G_OBJECT(main_win), E_FILT_AUTOCOMP_PTR_KEY, NULL);
|
|
return;
|
|
}
|
|
|
|
/* Enable sorting */
|
|
filter_autocomplete_enable_sorting(model);
|
|
|
|
gtk_tree_view_columns_autosize(GTK_TREE_VIEW(list));
|
|
#if GTK_CHECK_VERSION(3,0,0)
|
|
gtk_widget_get_preferred_size(list, &requisition, NULL);
|
|
#else
|
|
gtk_widget_size_request(list, &requisition);
|
|
#endif
|
|
|
|
gtk_widget_get_allocation(popup_win, &popup_win_alloc);
|
|
|
|
/* XXX use gtk_window_set_default_size()? */
|
|
gtk_widget_set_size_request(popup_win, popup_win_alloc.width,
|
|
(requisition.height<200? requisition.height+8:200));
|
|
gtk_window_resize(GTK_WINDOW(popup_win), popup_win_alloc.width,
|
|
(requisition.height<200? requisition.height+8:200));
|
|
}
|
|
|
|
static void
|
|
filter_autocomplete_win_destroy_cb(GtkWidget *win, gpointer data _U_)
|
|
{
|
|
/* tell that the autocomplete window doesn't exist anymore */
|
|
g_object_set_data(G_OBJECT(win), E_FILT_AUTOCOMP_PTR_KEY, NULL);
|
|
}
|
|
|
|
gboolean
|
|
filter_parent_dlg_key_pressed_cb(GtkWidget *win, GdkEventKey *event, gpointer user_data _U_)
|
|
{
|
|
GtkWidget *popup_win;
|
|
|
|
popup_win = (GtkWidget *)g_object_get_data(G_OBJECT(win), E_FILT_AUTOCOMP_PTR_KEY);
|
|
|
|
if(popup_win && event->keyval == GDK_Escape) {
|
|
gtk_widget_destroy(popup_win);
|
|
g_object_set_data(G_OBJECT(win), E_FILT_AUTOCOMP_PTR_KEY, NULL);
|
|
|
|
/* stop event propagation */
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 2
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=2 tabstop=8 expandtab:
|
|
* :indentSize=2:tabSize=8:noTabs=true:
|
|
*/
|