aboutsummaryrefslogtreecommitdiffstats
path: root/e-util/e-table-search.c
blob: 5b6a7bd8d6999cd67b8345e6864c6cccb4d5f014 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-table-search.h"

#include <string.h>

#include "e-marshal.h"

#define d(x)

struct _ETableSearchPrivate {
    guint timeout_id;

    gchar *search_string;
    gunichar last_character;
};

G_DEFINE_TYPE (ETableSearch, e_table_search, G_TYPE_OBJECT)

enum {
    SEARCH_SEARCH,
    SEARCH_ACCEPT,
    LAST_SIGNAL
};

#define E_TABLE_SEARCH_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_TABLE_SEARCH, ETableSearchPrivate))

d (static gint depth = 0)

static guint e_table_search_signals[LAST_SIGNAL] = { 0, };

static gboolean
e_table_search_search (ETableSearch *e_table_search,
                       gchar *string,
                       ETableSearchFlags flags)
{
    gboolean ret_val;
    g_return_val_if_fail (E_IS_TABLE_SEARCH (e_table_search), FALSE);

    g_signal_emit (
        e_table_search,
        e_table_search_signals[SEARCH_SEARCH], 0,
        string, flags, &ret_val);

    return ret_val;
}

static void
e_table_search_accept (ETableSearch *e_table_search)
{
    g_return_if_fail (E_IS_TABLE_SEARCH (e_table_search));

    g_signal_emit (
        e_table_search,
        e_table_search_signals[SEARCH_ACCEPT], 0);
}

static gboolean
ets_accept (gpointer data)
{
    ETableSearch *ets = data;
    e_table_search_accept (ets);
    g_free (ets->priv->search_string);

    ets->priv->timeout_id = 0;
    ets->priv->search_string = g_strdup ("");
    ets->priv->last_character = 0;

    return FALSE;
}

static void
drop_timeout (ETableSearch *ets)
{
    if (ets->priv->timeout_id) {
        g_source_remove (ets->priv->timeout_id);
    }
    ets->priv->timeout_id = 0;
}

static void
add_timeout (ETableSearch *ets)
{
    drop_timeout (ets);
    ets->priv->timeout_id = g_timeout_add_seconds (1, ets_accept, ets);
}

static void
e_table_search_finalize (GObject *object)
{
    ETableSearchPrivate *priv;

    priv = E_TABLE_SEARCH_GET_PRIVATE (object);

    drop_timeout (E_TABLE_SEARCH (object));

    g_free (priv->search_string);

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (e_table_search_parent_class)->finalize (object);
}

static void
e_table_search_class_init (ETableSearchClass *class)
{
    GObjectClass *object_class;

    g_type_class_add_private (class, sizeof (ETableSearchPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->finalize = e_table_search_finalize;

    e_table_search_signals[SEARCH_SEARCH] = g_signal_new (
        "search",
        G_TYPE_FROM_CLASS (object_class),
        G_SIGNAL_RUN_LAST,
        G_STRUCT_OFFSET (ETableSearchClass, search),
        (GSignalAccumulator) NULL, NULL,
        e_marshal_BOOLEAN__STRING_INT,
        G_TYPE_BOOLEAN, 2,
        G_TYPE_STRING,
        G_TYPE_INT);

    e_table_search_signals[SEARCH_ACCEPT] = g_signal_new (
        "accept",
        G_TYPE_FROM_CLASS (object_class),
        G_SIGNAL_RUN_LAST,
        G_STRUCT_OFFSET (ETableSearchClass, accept),
        (GSignalAccumulator) NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    class->search = NULL;
    class->accept = NULL;
}

static void
e_table_search_init (ETableSearch *ets)
{
    ets->priv = E_TABLE_SEARCH_GET_PRIVATE (ets);

    ets->priv->search_string = g_strdup ("");
}

ETableSearch *
e_table_search_new (void)
{
    return g_object_new (E_TYPE_TABLE_SEARCH, NULL);
}

/**
 * e_table_search_column_count:
 * @e_table_search: The e-table-search to operate on
 *
 * Returns: the number of columns in the table search.
 */
void
e_table_search_input_character (ETableSearch *ets,
                                gunichar character)
{
    gchar character_utf8[7];
    gchar *temp_string;

    g_return_if_fail (ets != NULL);
    g_return_if_fail (E_IS_TABLE_SEARCH (ets));

    character_utf8[g_unichar_to_utf8 (character, character_utf8)] = 0;

    temp_string = g_strdup_printf ("%s%s", ets->priv->search_string, character_utf8);
    if (e_table_search_search (
            ets, temp_string,
            ets->priv->last_character != 0 ?
            E_TABLE_SEARCH_FLAGS_CHECK_CURSOR_FIRST : 0)) {
        g_free (ets->priv->search_string);
        ets->priv->search_string = temp_string;
        add_timeout (ets);
        ets->priv->last_character = character;
        return;
    } else {
        g_free (temp_string);
    }

    if (character == ets->priv->last_character) {
        if (ets->priv->search_string &&
            e_table_search_search (ets, ets->priv->search_string, 0)) {
            add_timeout (ets);
        }
    }
}

gboolean
e_table_search_backspace (ETableSearch *ets)
{
    gchar *end;

    g_return_val_if_fail (ets != NULL, FALSE);
    g_return_val_if_fail (E_IS_TABLE_SEARCH (ets), FALSE);

    if (!ets->priv->search_string ||
        !*ets->priv->search_string)
        return FALSE;

    end = ets->priv->search_string + strlen (ets->priv->search_string);
    end = g_utf8_prev_char (end);
    *end = 0;
    ets->priv->last_character = 0;
    add_timeout (ets);
    return TRUE;
}