aboutsummaryrefslogtreecommitdiffstats
path: root/em-format/e-mail-formatter-print.c
blob: a855ebc102c5cdcd88b6f8b79905d51f3a56b49f (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
/*
 * e-mail-formatter-print.c
 *
 * 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/>
 *
 */

#include "e-mail-formatter-print.h"

#include "e-mail-part-attachment.h"
#include "e-mail-formatter-extension.h"
#include "e-mail-formatter-utils.h"
#include "e-mail-part.h"

#include <gdk/gdk.h>
#include <glib/gi18n.h>

#define STYLESHEET_URI \
    "evo-file://" EVOLUTION_PRIVDATADIR "/theme/webview-print.css"

/* internal formatter extensions */
GType e_mail_formatter_print_headers_get_type (void);

void e_mail_formatter_print_internal_extensions_load (EMailExtensionRegistry *ereg);

static gpointer e_mail_formatter_print_parent_class = 0;

static void
mail_formatter_print_write_attachments (EMailFormatter *formatter,
                                        GQueue *attachments,
                                        CamelStream *stream,
                                        GCancellable *cancellable)
{
    GString *str;

    str = g_string_new (
        "<table border=\"0\" cellspacing=\"5\" cellpadding=\"0\" "
        "class=\"attachments-list\" >\n");
    g_string_append_printf (
        str,
        "<tr><th colspan=\"2\"><h1>%s</h1></td></tr>\n"
        "<tr><th>%s</th><th>%s</th></tr>\n",
        _("Attachments"), _("Name"), _("Size"));

    while (!g_queue_is_empty (attachments)) {
        EMailPartAttachment *part;
        EAttachment *attachment;
        GFileInfo *file_info;
        gchar *name, *size;
        const gchar *description;
        const gchar *display_name;

        part = g_queue_pop_head (attachments);
        attachment = e_mail_part_attachment_ref_attachment (part);

        file_info = e_attachment_get_file_info (attachment);
        if (file_info == NULL) {
            g_object_unref (attachment);
            continue;
        }

        description = e_attachment_get_description (attachment);
        display_name = g_file_info_get_display_name (file_info);

        if (description != NULL && *description != '\0') {
            name = g_strdup_printf (
                "%s (%s)", description, display_name);
        } else {
            name = g_strdup (display_name);
        }

        size = g_format_size (g_file_info_get_size (file_info));

        g_string_append_printf (
            str, "<tr><td>%s</td><td>%s</td></tr>\n",
            name, size);

        g_free (name);
        g_free (size);

        g_object_unref (attachment);
    }

    g_string_append (str, "</table>\n");

    camel_stream_write_string (stream, str->str, cancellable, NULL);

    g_string_free (str, TRUE);
}

static void
mail_formatter_print_run (EMailFormatter *formatter,
                          EMailFormatterContext *context,
                          CamelStream *stream,
                          GCancellable *cancellable)
{
    GQueue queue = G_QUEUE_INIT;
    GQueue attachments = G_QUEUE_INIT;
    GList *head, *link;

    context->mode = E_MAIL_FORMATTER_MODE_PRINTING;

    camel_stream_write_string (
        stream,
        "<!DOCTYPE HTML>\n"
        "<html>\n"
        "<head>\n"
        "<meta name=\"generator\" content=\"Evolution Mail\" />\n"
        "<title>Evolution Mail Display</title>\n"
        "<link type=\"text/css\" rel=\"stylesheet\" "
        "      media=\"print\" href=\"" STYLESHEET_URI "/>\n"
        "</head>\n"
        "<body style=\"background: #FFF; color: #000;\">",
        cancellable, NULL);

    e_mail_part_list_queue_parts (context->part_list, NULL, &queue);

    head = g_queue_peek_head_link (&queue);

    for (link = head; link != NULL; link = g_list_next (link)) {
        EMailPart *part = E_MAIL_PART (link->data);
        const gchar *mime_type;
        gboolean ok;

        if (g_cancellable_is_cancelled (cancellable))
            break;

        if (part->is_hidden && !part->is_error) {
            if (e_mail_part_id_has_suffix (part, ".rfc822")) {
                link = e_mail_formatter_find_rfc822_end_iter (link);
            }

            continue;
        }

        mime_type = e_mail_part_get_mime_type (part);
        if (mime_type == NULL)
            continue;

        if (e_mail_part_get_is_attachment (part)) {
            if (e_mail_part_get_cid (part) != NULL)
                continue;

            g_queue_push_tail (&attachments, part);
        }

        ok = e_mail_formatter_format_as (
            formatter, context, part, stream,
            mime_type, cancellable);

        /* If the written part was message/rfc822 then
         * jump to the end of the message, because content
         * of the whole message has been formatted by
         * message_rfc822 formatter */
        if (ok && e_mail_part_id_has_suffix (part, ".rfc822")) {
            link = e_mail_formatter_find_rfc822_end_iter (link);

            continue;
        }
    }

    while (!g_queue_is_empty (&queue))
        e_mail_part_unref (g_queue_pop_head (&queue));

    /* This consumes the attachments queue. */
    if (!g_queue_is_empty (&attachments))
        mail_formatter_print_write_attachments (
            formatter, &attachments,
            stream, cancellable);

    camel_stream_write_string (stream, "</body></html>", cancellable, NULL);
}

static void
mail_formatter_update_style (EMailFormatter *formatter,
                             GtkStateFlags state)
{
    /* White background */
    GdkRGBA body_color = { 1.0, 1.0, 1.0, 1.0 };
    /* Black text */
    GdkRGBA text_color = { 0.0, 0.0, 0.0, 0.0 };

    g_object_freeze_notify (G_OBJECT (formatter));

    /* Chain up to parent's update_style() method. */
    E_MAIL_FORMATTER_CLASS (e_mail_formatter_print_parent_class)->
        update_style (formatter, state);

    e_mail_formatter_set_color (
        formatter, E_MAIL_FORMATTER_COLOR_FRAME, &body_color);
    e_mail_formatter_set_color (
        formatter, E_MAIL_FORMATTER_COLOR_CONTENT, &body_color);
    e_mail_formatter_set_color (
        formatter, E_MAIL_FORMATTER_COLOR_TEXT, &text_color);

    g_object_thaw_notify (G_OBJECT (formatter));
}

static void
e_mail_formatter_print_init (EMailFormatterPrint *formatter)
{
}

static void
e_mail_formatter_print_class_init (EMailFormatterPrintClass *class)
{
    EMailFormatterClass *formatter_class;

    e_mail_formatter_print_parent_class = g_type_class_peek_parent (class);

    formatter_class = E_MAIL_FORMATTER_CLASS (class);
    formatter_class->run = mail_formatter_print_run;
    formatter_class->update_style = mail_formatter_update_style;
}

static void
e_mail_formatter_print_base_init (EMailFormatterPrintClass *class)
{
    /* Register internal extensions. */
    g_type_ensure (e_mail_formatter_print_headers_get_type ());

    e_mail_formatter_extension_registry_load (
        E_MAIL_FORMATTER_CLASS (class)->extension_registry,
        E_TYPE_MAIL_FORMATTER_PRINT_EXTENSION);

    E_MAIL_FORMATTER_CLASS (class)->text_html_flags =
        CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
        CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS |
        CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES;
}

EMailFormatter *
e_mail_formatter_print_new (void)
{
    return g_object_new (E_TYPE_MAIL_FORMATTER_PRINT, NULL);
}

GType
e_mail_formatter_print_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        const GTypeInfo type_info = {
            sizeof (EMailFormatterClass),
            (GBaseInitFunc) e_mail_formatter_print_base_init,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) e_mail_formatter_print_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,   /* class_data */
            sizeof (EMailFormatterPrint),
            0,  /* n_preallocs */
            (GInstanceInitFunc) e_mail_formatter_print_init,
            NULL    /* value_table */
        };

        type = g_type_register_static (
            E_TYPE_MAIL_FORMATTER,
            "EMailFormatterPrint", &type_info, 0);
    }

    return type;
}

/* ------------------------------------------------------------------------- */

G_DEFINE_ABSTRACT_TYPE (
    EMailFormatterPrintExtension,
    e_mail_formatter_print_extension,
    E_TYPE_MAIL_FORMATTER_EXTENSION)

static void
e_mail_formatter_print_extension_class_init (EMailFormatterPrintExtensionClass *class)
{
}

static void
e_mail_formatter_print_extension_init (EMailFormatterPrintExtension *extension)
{
}