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
|
/*
* 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:
* Federico Mena Quintero <federico@ximian.com>
* Damon Chaplin <damon@ximian.com>
* Rodrigo Moya <rodrigo@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-cal-component-preview.h"
#include <string.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <camel/camel.h>
#define E_CAL_COMPONENT_PREVIEW_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_CAL_COMPONENT_PREVIEW, ECalComponentPreviewPrivate))
G_DEFINE_TYPE (
ECalComponentPreview,
e_cal_component_preview,
E_TYPE_WEB_VIEW)
struct _ECalComponentPreviewPrivate {
/* information about currently showing component in a preview;
* if it didn't change then the preview is not updated */
gchar *cal_uid;
gchar *comp_uid;
struct icaltimetype comp_last_modified;
gint comp_sequence;
ECalClient *client;
ECalComponent *comp;
icaltimezone *timezone;
gboolean use_24_hour_format;
};
#define HTML_HEADER "<!doctype html public \"-//W3C//DTD HTML 4.0 TRANSITIONAL//EN\">\n<html>\n" \
"<head>\n<meta name=\"generator\" content=\"Evolution Calendar Component\">\n" \
"<link type=\"text/css\" rel=\"stylesheet\" href=\"evo-file://" EVOLUTION_PRIVDATADIR "/theme/webview.css\">\n" \
"<style>\n" \
".description { font-family: monospace; font-size: 1em; }\n" \
"</style>\n" \
"</head>"
static void
clear_comp_info (ECalComponentPreview *preview)
{
ECalComponentPreviewPrivate *priv;
g_return_if_fail (E_IS_CAL_COMPONENT_PREVIEW (preview));
priv = preview->priv;
g_free (priv->cal_uid);
priv->cal_uid = NULL;
g_free (priv->comp_uid);
priv->comp_uid = NULL;
priv->comp_last_modified = icaltime_null_time ();
priv->comp_sequence = -1;
g_clear_object (&priv->client);
g_clear_object (&priv->comp);
if (priv->timezone) {
icaltimezone_free (priv->timezone, 1);
priv->timezone = NULL;
}
}
/* Stores information about actually shown component and
* returns whether component in the preview changed */
static gboolean
update_comp_info (ECalComponentPreview *preview,
ECalClient *client,
ECalComponent *comp,
icaltimezone *zone,
gboolean use_24_hour_format)
{
ECalComponentPreviewPrivate *priv;
gboolean changed;
g_return_val_if_fail (preview != NULL, TRUE);
g_return_val_if_fail (E_IS_CAL_COMPONENT_PREVIEW (preview), TRUE);
priv = preview->priv;
if (!E_IS_CAL_COMPONENT (comp) || !E_IS_CAL_CLIENT (client)) {
changed = !priv->cal_uid;
clear_comp_info (preview);
} else {
ESource *source;
const gchar *uid;
gchar *cal_uid;
gchar *comp_uid;
struct icaltimetype comp_last_modified, *itm = NULL;
gint *sequence = NULL;
gint comp_sequence;
source = e_client_get_source (E_CLIENT (client));
cal_uid = g_strdup (e_source_get_uid (source));
e_cal_component_get_uid (comp, &uid);
comp_uid = g_strdup (uid);
e_cal_component_get_last_modified (comp, &itm);
if (itm) {
comp_last_modified = *itm;
e_cal_component_free_icaltimetype (itm);
} else
comp_last_modified = icaltime_null_time ();
e_cal_component_get_sequence (comp, &sequence);
if (sequence) {
comp_sequence = *sequence;
e_cal_component_free_sequence (sequence);
} else
comp_sequence = 0;
changed = !priv->cal_uid || !priv->comp_uid || !cal_uid || !comp_uid ||
!g_str_equal (priv->cal_uid, cal_uid) ||
!g_str_equal (priv->comp_uid, comp_uid) ||
priv->comp_sequence != comp_sequence ||
icaltime_compare (priv->comp_last_modified, comp_last_modified) != 0;
clear_comp_info (preview);
priv->cal_uid = cal_uid;
priv->comp_uid = comp_uid;
priv->comp_sequence = comp_sequence;
priv->comp_last_modified = comp_last_modified;
priv->comp = g_object_ref (comp);
priv->client = g_object_ref (client);
priv->timezone = icaltimezone_copy (zone);
priv->use_24_hour_format = use_24_hour_format;
}
return changed;
}
/* Converts a time_t to a string, relative to the specified timezone */
static gchar *
timet_to_str_with_zone (ECalComponentDateTime *dt,
ECalClient *client,
icaltimezone *default_zone,
gboolean use_24_hour_format)
{
struct icaltimetype itt;
icaltimezone *zone = NULL;
struct tm tm;
gchar buf[256];
if (dt->tzid != NULL) {
e_cal_client_get_timezone_sync (
client, dt->tzid, &zone, NULL, NULL);
} else if (dt->value->is_utc) {
zone = icaltimezone_get_utc_timezone ();
}
itt = *dt->value;
if (zone != NULL)
icaltimezone_convert_time (&itt, zone, default_zone);
tm = icaltimetype_to_tm (&itt);
e_time_format_date_and_time (
&tm, use_24_hour_format,
FALSE, FALSE, buf, sizeof (buf));
return g_locale_to_utf8 (buf, -1, NULL, NULL, NULL);
}
static void
cal_component_preview_write_html (ECalComponentPreview *preview,
GString *buffer)
{
ECalClient *client;
ECalComponent *comp;
icaltimezone *default_zone;
gboolean use_24_hour_format;
ECalComponentText text;
ECalComponentDateTime dt;
gchar *str;
GString *string;
GSList *list, *iter;
icalcomponent *icalcomp;
icalproperty *icalprop;
icalproperty_status status;
const gchar *location;
gint *priority_value;
client = preview->priv->client;
comp = preview->priv->comp;
default_zone = preview->priv->timezone;
use_24_hour_format = preview->priv->use_24_hour_format;
/* write document header */
e_cal_component_get_summary (comp, &text);
g_string_append (buffer, HTML_HEADER);
g_string_append (buffer, "<body class=\"-e-web-view-background-color -e-web-view-text-color\">");
if (text.value)
g_string_append_printf (buffer, "<h2>%s</h2>", text.value);
else
g_string_append_printf (buffer, "<h2><i>%s</i></h2>",_("Untitled"));
g_string_append (buffer, "<table border=\"0\" cellspacing=\"5\">");
/* write icons for the categories */
string = g_string_new (NULL);
e_cal_component_get_categories_list (comp, &list);
if (list != NULL)
g_string_append_printf (buffer, "<tr><th>%s</th><td>", _("Categories:"));
for (iter = list; iter != NULL; iter = iter->next) {
const gchar *category = iter->data;
const gchar *icon_file;
icon_file = e_categories_get_icon_file_for (category);
if (icon_file && g_file_test (icon_file, G_FILE_TEST_EXISTS)) {
gchar *uri;
uri = g_filename_to_uri (icon_file, NULL, NULL);
g_string_append_printf (
buffer, "<img alt=\"%s\" src=\"evo-%s\">",
category, uri);
g_free (uri);
} else {
if (iter != list)
g_string_append_len (string, ", ", 2);
g_string_append (string, category);
}
}
if (string->len > 0)
g_string_append_printf (buffer, "%s", string->str);
if (list != NULL)
g_string_append (buffer, "</td></tr>");
e_cal_component_free_categories_list (list);
g_string_free (string, TRUE);
/* write location */
e_cal_component_get_location (comp, &location);
if (location)
g_string_append_printf (
buffer, "<tr><th>%s</th><td>%s</td></tr>",
_("Summary:"), text.value);
/* write start date */
e_cal_component_get_dtstart (comp, &dt);
if (dt.value != NULL) {
str = timet_to_str_with_zone (
&dt, client, default_zone, use_24_hour_format);
g_string_append_printf (
buffer, "<tr><th>%s</th><td>%s</td></tr>",
_("Start Date:"), str);
g_free (str);
}
e_cal_component_free_datetime (&dt);
/* write end date */
e_cal_component_get_dtend (comp, &dt);
if (dt.value != NULL) {
str = timet_to_str_with_zone (
&dt, client, default_zone, use_24_hour_format);
g_string_append_printf (
buffer,"<tr><th>%s</th><td>%s</td></tr>",
_("End Date:"), str);
g_free (str);
}
e_cal_component_free_datetime (&dt);
/* write Due Date */
e_cal_component_get_due (comp, &dt);
if (dt.value != NULL) {
str = timet_to_str_with_zone (
&dt, client, default_zone, use_24_hour_format);
g_string_append_printf (
buffer, "<tr><th>%s</th><td>%s</td></tr>",
_("Due Date:"), str);
g_free (str);
}
e_cal_component_free_datetime (&dt);
/* write status */
icalcomp = e_cal_component_get_icalcomponent (comp);
icalprop = icalcomponent_get_first_property (
icalcomp, ICAL_STATUS_PROPERTY);
if (icalprop != NULL) {
g_string_append_printf (
buffer, "<tr><th>%s</th>",
_("Status:"));
e_cal_component_get_status (comp, &status);
switch (status) {
case ICAL_STATUS_INPROCESS :
str = g_strdup (_("In Progress"));
break;
case ICAL_STATUS_COMPLETED :
str = g_strdup (_("Completed"));
break;
case ICAL_STATUS_CANCELLED :
str = g_strdup (_("Canceled"));
break;
case ICAL_STATUS_NONE :
default :
str = g_strdup (_("Not Started"));
break;
}
g_string_append_printf (buffer, "<td>%s</td></tr>", str);
g_free (str);
}
/* write priority */
e_cal_component_get_priority (comp, &priority_value);
if (priority_value && *priority_value != 0) {
g_string_append_printf (
buffer, "<tr><th>%s</th>",
_("Priority:"));
if (*priority_value <= 4)
str = g_strdup (_("High"));
else if (*priority_value == 5)
str = g_strdup (_("Normal"));
else
str = g_strdup (_("Low"));
g_string_append_printf (buffer, "<td>%s</td></tr>", str);
g_free (str);
}
if (priority_value)
e_cal_component_free_priority (priority_value);
/* write description and URL */
g_string_append (buffer, "<tr><td colspan=\"2\"><hr></td></tr>");
e_cal_component_get_description_list (comp, &list);
if (list) {
GSList *node;
g_string_append_printf (
buffer, "<tr><th>%s</th>",
_("Description:"));
g_string_append (buffer, "<td class=\"description\">");
for (node = list; node != NULL; node = node->next) {
gchar *html;
text = * (ECalComponentText *) node->data;
html = camel_text_to_html (
text.value ? text.value : "",
CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES |
CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS |
CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES, 0);
if (html)
g_string_append_printf (buffer, "%s", html);
g_free (html);
}
g_string_append (buffer, "</td></tr>");
e_cal_component_free_text_list (list);
}
/* URL */
e_cal_component_get_url (comp, (const gchar **) &str);
if (str) {
g_string_append_printf (
buffer, "<tr><th>%s</th><td><a href=\"%s\">%s</a></td></tr>",
_("Web Page:"), str, str);
}
g_string_append (buffer, "</table>");
/* close document */
g_string_append (buffer, "</body></html>");
}
static void
load_comp (ECalComponentPreview *preview)
{
GString *buffer;
if (!preview->priv->comp) {
e_cal_component_preview_clear (preview);
return;
}
buffer = g_string_sized_new (4096);
cal_component_preview_write_html (preview, buffer);
e_web_view_load_string (E_WEB_VIEW (preview), buffer->str);
g_string_free (buffer, TRUE);
}
static void
cal_component_preview_finalize (GObject *object)
{
clear_comp_info (E_CAL_COMPONENT_PREVIEW (object));
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (e_cal_component_preview_parent_class)->finalize (object);
}
static void
e_cal_component_preview_class_init (ECalComponentPreviewClass *class)
{
GObjectClass *object_class;
g_type_class_add_private (class, sizeof (ECalComponentPreviewPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->finalize = cal_component_preview_finalize;
}
static void
e_cal_component_preview_init (ECalComponentPreview *preview)
{
preview->priv = E_CAL_COMPONENT_PREVIEW_GET_PRIVATE (preview);
g_signal_connect (
preview, "style-set",
G_CALLBACK (load_comp), NULL);
}
GtkWidget *
e_cal_component_preview_new (void)
{
return g_object_new (E_TYPE_CAL_COMPONENT_PREVIEW, NULL);
}
void
e_cal_component_preview_display (ECalComponentPreview *preview,
ECalClient *client,
ECalComponent *comp,
icaltimezone *zone,
gboolean use_24_hour_format)
{
g_return_if_fail (E_IS_CAL_COMPONENT_PREVIEW (preview));
g_return_if_fail (E_IS_CAL_COMPONENT (comp));
/* do not update preview when setting the same component as last time,
* which even didn't change */
if (!update_comp_info (preview, client, comp, zone, use_24_hour_format))
return;
load_comp (preview);
}
void
e_cal_component_preview_clear (ECalComponentPreview *preview)
{
g_return_if_fail (E_IS_CAL_COMPONENT_PREVIEW (preview));
clear_comp_info (preview);
e_web_view_clear (E_WEB_VIEW (preview));
}
|
