aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/attachment-reminder/attachment-reminder.c
blob: 5f3494175e0a3b9c44e310975f8ecf40ee0e3241 (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
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
/*
 * 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:
 *      Johnny Jacob <jjohnny@novell.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <string.h>

#include <e-util/e-util.h>
#include <e-util/e-config.h>
#include <mail/em-config.h>
#include <mail/em-event.h>

#include <libevolution-utils/e-alert-dialog.h>
#include <e-util/e-plugin.h>

#include <mail/em-utils.h>

#include "composer/e-msg-composer.h"
#include "composer/e-composer-actions.h"
#include "widgets/misc/e-attachment-view.h"
#include "widgets/misc/e-attachment-store.h"

#define CONF_KEY_ATTACH_REMINDER_CLUES "attachment-reminder-clues"

typedef struct {
    GSettings   *settings;
    GtkWidget   *treeview;
    GtkWidget   *clue_add;
    GtkWidget   *clue_edit;
    GtkWidget   *clue_remove;
    GtkListStore *store;
} UIData;

enum {
    CLUE_KEYWORD_COLUMN,
    CLUE_N_COLUMNS
};

gint        e_plugin_lib_enable (EPlugin *ep,
                     gint enable);
GtkWidget * e_plugin_lib_get_configure_widget
                    (EPlugin *plugin);
void        org_gnome_evolution_attachment_reminder
                    (EPlugin *ep,
                     EMEventTargetComposer *t);
GtkWidget * org_gnome_attachment_reminder_config_option
                    (EPlugin *plugin,
                     EConfigHookItemFactoryData *data);

static gboolean ask_for_missing_attachment (EPlugin *ep, GtkWindow *widget);
static gboolean check_for_attachment_clues (GByteArray *msg_text);
static gboolean check_for_attachment (EMsgComposer *composer);
static void commit_changes (UIData *ui);

gint
e_plugin_lib_enable (EPlugin *ep,
                     gint enable)
{
    return 0;
}

void
org_gnome_evolution_attachment_reminder (EPlugin *ep,
                                         EMEventTargetComposer *t)
{
    GByteArray *raw_msg_barray;

    /* no need to check for content, when there are attachments */
    if (check_for_attachment (t->composer))
        return;

    raw_msg_barray = e_msg_composer_get_raw_message_text (t->composer);
    if (!raw_msg_barray)
        return;

    /* Set presend_check_status for the composer*/
    if (check_for_attachment_clues (raw_msg_barray)) {
        if (!ask_for_missing_attachment (ep, (GtkWindow *) t->composer))
            g_object_set_data (
                G_OBJECT (t->composer),
                "presend_check_status",
                GINT_TO_POINTER (1));
    }

    g_byte_array_free (raw_msg_barray, TRUE);
}

static gboolean
ask_for_missing_attachment (EPlugin *ep,
                            GtkWindow *window)
{
    GtkWidget *check;
    GtkWidget *dialog;
    GtkWidget *container;
    gint response;

    dialog = e_alert_dialog_new_for_args (
        window, "org.gnome.evolution.plugins.attachment_reminder:"
        "attachment-reminder", NULL);

    container = e_alert_dialog_get_content_area (E_ALERT_DIALOG (dialog));

    /*Check buttons*/
    check = gtk_check_button_new_with_mnemonic (
        _("_Do not show this message again."));
    gtk_box_pack_start (GTK_BOX (container), check, FALSE, FALSE, 0);
    gtk_widget_show (check);

    response = gtk_dialog_run (GTK_DIALOG (dialog));

    if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (check)))
        e_plugin_enable (ep, FALSE);

    gtk_widget_destroy (dialog);

    if (response == GTK_RESPONSE_OK)
        gtk_action_activate (E_COMPOSER_ACTION_ATTACH (window));

    return response == GTK_RESPONSE_YES;
}

static gboolean
get_next_word (GByteArray *msg_text,
               guint *from,
               const gchar **word,
               guint *wlen)
{
    gboolean new_line;

    g_return_val_if_fail (msg_text != NULL, FALSE);
    g_return_val_if_fail (from != NULL, FALSE);
    g_return_val_if_fail (word != NULL, FALSE);
    g_return_val_if_fail (wlen != NULL, FALSE);

    if (*from >= msg_text->len)
        return FALSE;

    new_line = TRUE;
    while (new_line) {
        new_line = FALSE;

        while (*from < msg_text->len && g_ascii_isspace (msg_text->data[*from])) {
            new_line = msg_text->data[*from] == '\n';
            *from = (*from) + 1;
        }

        if (*from >= msg_text->len)
            return FALSE;

        if (new_line && msg_text->data[*from] == '>') {
            /* skip quotation lines */
            while (*from < msg_text->len && msg_text->data[*from] != '\n') {
                *from = (*from) + 1;
            }
        } else if (new_line && *from + 3 < msg_text->len &&
                   strncmp ((const gchar *) (msg_text->data + (*from)), "-- \n", 4) == 0) {
            /* signature delimiter finishes message text */
            *from = msg_text->len;
            return FALSE;
        } else {
            new_line = FALSE;
        }
    }

    if (*from >= msg_text->len)
        return FALSE;

    *word = (const gchar *) (msg_text->data + (*from));
    *wlen = 0;

    while (*from < msg_text->len && !g_ascii_isspace (msg_text->data[*from])) {
        *from = (*from) + 1;
        *wlen = (*wlen) + 1;
    }

    return TRUE;
}

/* 's1' has s1len bytes of text, while 's2' is NULL-terminated
 * and *s2len contains how many bytes were read */
static gboolean
utf8_casencmp (const gchar *s1,
               guint s1len,
               const gchar *s2,
               guint *s2len)
{
    gunichar u1, u2;
    guint u1len, u2len;

    if (!s1 || !s2 || !s1len || !s2len)
        return FALSE;

    *s2len = 0;

    while (s1len > 0 && *s1 && *s2) {
        u1 = g_utf8_get_char_validated (s1, s1len);
        u2 = g_utf8_get_char_validated (s2, -1);

        if (u1 == -1 || u1 == -2 || u2 == -1 || u2 == -2)
            break;

        if (u1 != u2 && g_unichar_tolower (u1) != g_unichar_tolower (u2))
            break;

        u1len = g_unichar_to_utf8 (u1, NULL);
        if (s1len < u1len)
            break;

        u2len = g_unichar_to_utf8 (u2, NULL);

        s1len -= u1len;
        s1 += u1len;
        *s2len = (*s2len) + u2len;
        s2 += u2len;
    }

    return s1len == 0;
}

/* check for the clues */
static gboolean
check_for_attachment_clues (GByteArray *msg_text)
{
    GSettings *settings;
    gchar **clue_list;
    gboolean found = FALSE;

    settings = g_settings_new ("org.gnome.evolution.plugin.attachment-reminder");

    /* Get the list from GSettings */
    clue_list = g_settings_get_strv (settings, CONF_KEY_ATTACH_REMINDER_CLUES);

    g_object_unref (settings);

    if (clue_list && clue_list[0]) {
        gint ii;
        guint from = 0, wlen = 0, clen = 0;
        const gchar *word = NULL;

        while (!found && get_next_word (msg_text, &from, &word, &wlen)) {
            for (ii = 0; !found && clue_list[ii] != NULL; ii++) {
                const gchar *clue = clue_list[ii];

                if (utf8_casencmp (word, wlen, clue, &clen)) {
                    found = clue[clen] == 0;

                    if (!found && g_ascii_isspace (clue[clen])) {
                        /* clue is a multi-word, then test more words */
                        guint bfrom = from, blen = 0;
                        const gchar *bword = NULL;

                        clue = clue + clen;
                        while (*clue && g_ascii_isspace (*clue))
                            clue++;

                        found = !*clue;
                        if (!found) {
                            found = TRUE;

                            while (found && get_next_word (msg_text, &bfrom, &bword, &blen)) {
                                found = FALSE;

                                if (utf8_casencmp (bword, blen, clue, &clen)) {
                                    found = clue[clen] == 0;
                                    if (found) {
                                        clue = clue + clen;
                                        break;
                                    } else if (g_ascii_isspace (clue[clen])) {
                                        /* another word in clue */
                                        found = TRUE;

                                        clue = clue + clen;
                                        while (*clue && g_ascii_isspace (*clue))
                                            clue++;
                                    }
                                } else {
                                    found = FALSE;
                                }
                            }

                            found = found && !*clue;
                        }
                    }
                }
            }
        }
    }

    if (clue_list) {
        g_strfreev (clue_list);
    }

    return found;
}

/* check for the any attachment */
static gboolean
check_for_attachment (EMsgComposer *composer)
{
    EAttachmentView *view;
    EAttachmentStore *store;

    view = e_msg_composer_get_attachment_view (composer);
    store = e_attachment_view_get_store (view);

    return (e_attachment_store_get_num_attachments (store) > 0);
}

static void
commit_changes (UIData *ui)
{
    GtkTreeModel *model = NULL;
    GVariantBuilder b;
    GVariant *v;
    GtkTreeIter iter;
    gboolean valid;

    model = gtk_tree_view_get_model (GTK_TREE_VIEW (ui->treeview));
    valid = gtk_tree_model_get_iter_first (model, &iter);

    g_variant_builder_init (&b, G_VARIANT_TYPE ("as"));
    while (valid) {
        gchar *keyword;

        gtk_tree_model_get (
            model, &iter, CLUE_KEYWORD_COLUMN, &keyword, -1);

        /* Check if the keyword is not empty */
        if ((keyword) && (g_utf8_strlen (g_strstrip (keyword), -1) > 0))
            g_variant_builder_add (&b, "s", keyword);
        g_free (keyword);

        valid = gtk_tree_model_iter_next (model, &iter);
    }

    v = g_variant_builder_end (&b);
    g_settings_set_value (ui->settings, CONF_KEY_ATTACH_REMINDER_CLUES, v);

    g_variant_unref (v);
}

static void
cell_edited_cb (GtkCellRendererText *cell,
                gchar *path_string,
                gchar *new_text,
                UIData *ui)
{
    GtkTreeModel *model;
    GtkTreeIter iter;

    model = gtk_tree_view_get_model (GTK_TREE_VIEW (ui->treeview));
    gtk_tree_model_get_iter_from_string (model, &iter, path_string);

    if (new_text == NULL || *g_strstrip (new_text) == '\0')
        gtk_button_clicked (GTK_BUTTON (ui->clue_remove));
    else {
        gtk_list_store_set (
            GTK_LIST_STORE (model), &iter,
            CLUE_KEYWORD_COLUMN, new_text, -1);
        commit_changes (ui);
    }
}

static void
cell_editing_canceled_cb (GtkCellRenderer *cell,
                          UIData *ui)
{
    gtk_button_clicked (GTK_BUTTON (ui->clue_remove));
}

static void
clue_add_clicked (GtkButton *button,
                  UIData *ui)
{
    GtkTreeModel *model;
    GtkTreeView *tree_view;
    GtkTreeViewColumn *column;
    GtkTreePath *path;
    GtkTreeIter iter;

    tree_view = GTK_TREE_VIEW (ui->treeview);
    model = gtk_tree_view_get_model (tree_view);

    gtk_list_store_append (GTK_LIST_STORE (model), &iter);

    path = gtk_tree_model_get_path (model, &iter);
    column = gtk_tree_view_get_column (tree_view, CLUE_KEYWORD_COLUMN);
    gtk_tree_view_set_cursor (tree_view, path, column, TRUE);
    gtk_tree_view_row_activated (tree_view, path, column);
    gtk_tree_path_free (path);
}

static void
clue_remove_clicked (GtkButton *button,
                     UIData *ui)
{
    GtkTreeSelection *selection;
    GtkTreeModel *model;
    GtkTreeIter iter;
    GtkTreePath *path;
    gboolean valid;
    gint len;

    valid = FALSE;
    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (ui->treeview));
    if (!gtk_tree_selection_get_selected (selection, &model, &iter))
        return;

    /* Get the path and move to the previous node :) */
    path = gtk_tree_model_get_path (model, &iter);
    if (path)
        valid = gtk_tree_path_prev (path);

    gtk_list_store_remove (GTK_LIST_STORE (model), &iter);

    len = gtk_tree_model_iter_n_children (model, NULL);
    if (len > 0) {
        if (gtk_list_store_iter_is_valid (GTK_LIST_STORE (model), &iter)) {
            gtk_tree_selection_select_iter (selection, &iter);
        } else {
            if (path && valid) {
                gtk_tree_model_get_iter (model, &iter, path);
                gtk_tree_selection_select_iter (selection, &iter);
            }
        }
    } else {
        gtk_widget_set_sensitive (ui->clue_edit, FALSE);
        gtk_widget_set_sensitive (ui->clue_remove, FALSE);
    }

    gtk_widget_grab_focus (ui->treeview);
    gtk_tree_path_free (path);

    commit_changes (ui);
}

static void
clue_edit_clicked (GtkButton *button,
                   UIData *ui)
{
    GtkTreeSelection *selection;
    GtkTreeModel *model;
    GtkTreePath *path;
    GtkTreeIter iter;
    GtkTreeViewColumn *focus_col;

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (ui->treeview));
    if (!gtk_tree_selection_get_selected (selection, &model, &iter))
        return;

    focus_col = gtk_tree_view_get_column (
        GTK_TREE_VIEW (ui->treeview), CLUE_KEYWORD_COLUMN);
    path = gtk_tree_model_get_path (model, &iter);

    if (path) {
        gtk_tree_view_set_cursor (
            GTK_TREE_VIEW (ui->treeview),
            path, focus_col, TRUE);
        gtk_tree_path_free (path);
    }
}

static void
selection_changed (GtkTreeSelection *selection,
                   UIData *ui)
{
    GtkTreeModel *model;
    GtkTreeIter iter;

    if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
        gtk_widget_set_sensitive (ui->clue_edit, TRUE);
        gtk_widget_set_sensitive (ui->clue_remove, TRUE);
    } else {
        gtk_widget_set_sensitive (ui->clue_edit, FALSE);
        gtk_widget_set_sensitive (ui->clue_remove, FALSE);
    }
}

static void
destroy_ui_data (gpointer data)
{
    UIData *ui = (UIData *) data;

    if (!ui)
        return;

    g_object_unref (ui->settings);
    g_free (ui);
}

GtkWidget *
e_plugin_lib_get_configure_widget (EPlugin *plugin)
{
    GtkCellRenderer *renderer;
    GtkTreeSelection *selection;
    GtkTreeIter iter;
    GtkWidget *hbox;
    gchar **clue_list;
    gint i;

    GtkWidget *reminder_configuration_box;
    GtkWidget *clue_container;
    GtkWidget *scrolledwindow1;
    GtkWidget *clue_treeview;
    GtkWidget *vbuttonbox2;
    GtkWidget *clue_add;
    GtkWidget *clue_edit;
    GtkWidget *clue_remove;

    UIData *ui = g_new0 (UIData, 1);

    reminder_configuration_box = gtk_vbox_new (FALSE, 6);
    gtk_widget_show (reminder_configuration_box);
    gtk_widget_set_size_request (reminder_configuration_box, 385, 189);

    clue_container = gtk_hbox_new (FALSE, 12);
    gtk_widget_show (clue_container);
    gtk_box_pack_start (
        GTK_BOX (reminder_configuration_box),
        clue_container, TRUE, TRUE, 0);

    scrolledwindow1 = gtk_scrolled_window_new (NULL, NULL);
    gtk_widget_show (scrolledwindow1);
    gtk_box_pack_start (GTK_BOX (clue_container), scrolledwindow1, TRUE, TRUE, 0);
    gtk_scrolled_window_set_policy (
        GTK_SCROLLED_WINDOW (scrolledwindow1),
        GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

    clue_treeview = gtk_tree_view_new ();
    gtk_widget_show (clue_treeview);
    gtk_container_add (GTK_CONTAINER (scrolledwindow1), clue_treeview);
    gtk_container_set_border_width (GTK_CONTAINER (clue_treeview), 1);

    vbuttonbox2 = gtk_vbutton_box_new ();
    gtk_widget_show (vbuttonbox2);
    gtk_box_pack_start (GTK_BOX (clue_container), vbuttonbox2, FALSE, TRUE, 0);
    gtk_button_box_set_layout (GTK_BUTTON_BOX (vbuttonbox2), GTK_BUTTONBOX_START);
    gtk_box_set_spacing (GTK_BOX (vbuttonbox2), 6);

    clue_add = gtk_button_new_from_stock ("gtk-add");
    gtk_widget_show (clue_add);
    gtk_container_add (GTK_CONTAINER (vbuttonbox2), clue_add);
    gtk_widget_set_can_default (clue_add, TRUE);

    clue_edit = gtk_button_new_from_stock ("gtk-edit");
    gtk_widget_show (clue_edit);
    gtk_container_add (GTK_CONTAINER (vbuttonbox2), clue_edit);
    gtk_widget_set_can_default (clue_edit, TRUE);

    clue_remove = gtk_button_new_from_stock ("gtk-remove");
    gtk_widget_show (clue_remove);
    gtk_container_add (GTK_CONTAINER (vbuttonbox2), clue_remove);
    gtk_widget_set_can_default (clue_remove, TRUE);

    ui->settings = g_settings_new ("org.gnome.evolution.plugin.attachment-reminder");

    ui->treeview = clue_treeview;

    ui->store = gtk_list_store_new (CLUE_N_COLUMNS, G_TYPE_STRING);

    gtk_tree_view_set_model (
        GTK_TREE_VIEW (ui->treeview),
        GTK_TREE_MODEL (ui->store));

    renderer = gtk_cell_renderer_text_new ();
    gtk_tree_view_insert_column_with_attributes (
        GTK_TREE_VIEW (ui->treeview), -1, _("Keywords"),
        renderer, "text", CLUE_KEYWORD_COLUMN, NULL);
    g_object_set (renderer, "editable", TRUE, NULL);
    g_signal_connect (
        renderer, "edited",
        G_CALLBACK (cell_edited_cb), ui);
    g_signal_connect (
        renderer, "editing-canceled",
        G_CALLBACK (cell_editing_canceled_cb), ui);

    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (ui->treeview));
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
    g_signal_connect (
        selection, "changed",
        G_CALLBACK (selection_changed), ui);
    gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (ui->treeview), TRUE);

    ui->clue_add = clue_add;
    g_signal_connect (
        ui->clue_add, "clicked",
        G_CALLBACK (clue_add_clicked), ui);

    ui->clue_remove = clue_remove;
    g_signal_connect (
        ui->clue_remove, "clicked",
        G_CALLBACK (clue_remove_clicked), ui);
    gtk_widget_set_sensitive (ui->clue_remove, FALSE);

    ui->clue_edit = clue_edit;
    g_signal_connect (
        ui->clue_edit, "clicked",
        G_CALLBACK (clue_edit_clicked), ui);
    gtk_widget_set_sensitive (ui->clue_edit, FALSE);

    /* Populate tree view with values from GSettings */
    clue_list = g_settings_get_strv (ui->settings, CONF_KEY_ATTACH_REMINDER_CLUES);

    for (i = 0; clue_list[i] != NULL; i++) {
        gtk_list_store_append (ui->store, &iter);
        gtk_list_store_set (ui->store, &iter, CLUE_KEYWORD_COLUMN, clue_list[i], -1);
    }

    if (clue_list) {
        g_strfreev (clue_list);
    }

    /* Add the list here */

    hbox = gtk_vbox_new (FALSE, 0);

    gtk_box_pack_start (GTK_BOX (hbox), reminder_configuration_box, TRUE, TRUE, 0);

    /* to let free data properly on destroy of configuration widget */
    g_object_set_data_full (G_OBJECT (hbox), "myui-data", ui, destroy_ui_data);

    return hbox;
}

/* Configuration in Mail Prefs Page goes here */

GtkWidget *
org_gnome_attachment_reminder_config_option (EPlugin *plugin,
                                             struct _EConfigHookItemFactoryData *data)
{
    /* This function and the hook needs to be removed,
    once the configure code is thoroughly tested */

    return NULL;

}