aboutsummaryrefslogtreecommitdiffstats
path: root/mail/mail-display.c
blob: d569ba1f7c9f5ec017ce169cfea418c370a06cc5 (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
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * mail-display.c: Mail display widget
 *
 * Author:
 *   Miguel de Icaza
 *   Bertrand Guiheneuf (bg@aful.org)
 *
 * (C) 2000 Helix Code, Inc.
 */
#include <config.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <gnome.h>
#include "e-util/e-setup.h"
#include "e-util/e-util.h"
#include "mail-display.h"
#include "mail.h"

#define PARENT_TYPE (gtk_vbox_get_type ())

static GtkObjectClass *mail_display_parent_class;


/*----------------------------------------------------------------------*
 *                        Callbacks
 *----------------------------------------------------------------------*/

static void
save_data_eexist_cb (int reply, gpointer user_data)
{
    gboolean *ok = user_data;

    *ok = reply == 0;
    gtk_main_quit ();
}

static void
save_data_cb (GtkWidget *widget, gpointer user_data)
{
    CamelDataWrapper *data = user_data;
    CamelStream *stream_fs;
    GtkFileSelection *file_select = (GtkFileSelection *)
        gtk_widget_get_ancestor (widget, GTK_TYPE_FILE_SELECTION);
    char *name;
    int fd;

    name = gtk_file_selection_get_filename (file_select);

    fd = open (name, O_WRONLY | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
    if (fd == -1 && errno == EEXIST) {
        gboolean ok = FALSE;

        gnome_ok_cancel_dialog_modal_parented (
            "A file by that name already exists.\nOverwrite it?",
            save_data_eexist_cb, &ok, GTK_WINDOW (file_select));
        gtk_main ();
        if (!ok)
            return;
        fd = open (name, O_WRONLY | O_TRUNC);
    }

    if (fd == -1) {
        char *msg;

        msg = g_strdup_printf ("Could not open file %s:\n%s",
                       name, g_strerror (errno));
        gnome_error_dialog_parented (msg, GTK_WINDOW (file_select));
        return;
    }

    stream_fs = camel_stream_fs_new_with_fd (fd);
    if (camel_data_wrapper_write_to_stream (data, stream_fs) == -1
        || camel_stream_flush (stream_fs) == -1) {
        char *msg;

        msg = g_strdup_printf ("Could not write data: %s", strerror(errno));
        gnome_error_dialog_parented (msg, GTK_WINDOW (file_select));
    }
    gtk_object_unref (GTK_OBJECT (stream_fs));

    gtk_widget_destroy (GTK_WIDGET (file_select));
}

static void
save_data (const char *cid, CamelMimeMessage *message)
{
    CamelDataWrapper *data;
    GtkFileSelection *file_select;
    char *filename;

    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (message));
    data = gtk_object_get_data (GTK_OBJECT (message), cid);
    g_return_if_fail (CAMEL_IS_DATA_WRAPPER (data));

    file_select = GTK_FILE_SELECTION (gtk_file_selection_new ("Save Attachment"));
    filename = gtk_object_get_data (GTK_OBJECT (data), "filename");
    if (filename)
        filename = g_strdup_printf ("%s/%s", evolution_dir, filename);
    else
        filename = g_strdup_printf ("%s/attachment", evolution_dir);
    gtk_file_selection_set_filename (file_select, filename);
    g_free (filename);

    gtk_signal_connect (GTK_OBJECT (file_select->ok_button), "clicked", 
                GTK_SIGNAL_FUNC (save_data_cb), data);
    gtk_signal_connect_object (GTK_OBJECT (file_select->cancel_button),
                   "clicked",
                   GTK_SIGNAL_FUNC (gtk_widget_destroy),
                   GTK_OBJECT (file_select));

    gtk_widget_show (GTK_WIDGET (file_select));
}

static void
on_link_clicked (GtkHTML *html, const char *url, gpointer user_data)
{
    if (!strncasecmp (url, "news:", 5) ||
        !strncasecmp (url, "nntp:", 5))
        g_warning ("Can't handle news URLs yet.");
    else if (!strncasecmp (url, "mailto:", 7))
        send_to_url (url);
    else if (!strncasecmp (url, "cid:", 4))
        save_data (url + 4, user_data);
    else
        gnome_url_show (url);
}

static void
on_url_requested (GtkHTML *html, const char *url, GtkHTMLStreamHandle handle,
          gpointer user_data)
{
    CamelMimeMessage *message = CAMEL_MIME_MESSAGE (user_data);

    if (strncmp (url, "x-gnome-icon:", 13) == 0) {
        const char *name = url + 13;
        /* FIXME: gnome_pixmap_file will cheerily accept icon
         * names like "../../../dev/zero". Anyway, this whole
         * hack needs to be replaced with something more
         * efficient anyway.
         */
        char *path = gnome_pixmap_file (name), buf[1024];
        int fd, nread;

        g_return_if_fail (path != NULL);
        fd = open (path, O_RDONLY);
        g_free (path);
        g_return_if_fail (fd != -1);

        while (1) {
            nread = read (fd, buf, sizeof (buf));
            if (nread < 1)
                break;
            gtk_html_write (html, handle, buf, nread);
        }
        close (fd);
    } else if (strncmp (url, "cid:", 4) == 0) {
        const char *cid = url + 4;
        CamelDataWrapper *data;
        CamelStream *stream_mem;
        GByteArray *ba;

        data = gtk_object_get_data (GTK_OBJECT (message), cid);
        g_return_if_fail (CAMEL_IS_DATA_WRAPPER (data));

        ba = g_byte_array_new ();
        stream_mem = camel_stream_mem_new_with_byte_array (ba);
        camel_data_wrapper_write_to_stream (data, stream_mem);
        gtk_html_write (html, handle, ba->data, ba->len);
        gtk_object_unref (GTK_OBJECT (stream_mem));
    } else
        return;
}

/* HTML part code */
static void
html_size_req (GtkWidget *widget, GtkRequisition *requisition)
{
    requisition->height = GTK_LAYOUT (widget)->height;
    requisition->width = GTK_LAYOUT (widget)->width;
}

void
mail_html_new (GtkHTML **html, GtkHTMLStreamHandle **stream,
           CamelMimeMessage *root, gboolean init)
{
    *html = GTK_HTML (gtk_html_new ());
    gtk_html_set_editable (*html, FALSE);
    gtk_signal_connect (GTK_OBJECT (*html), "size_request",
                GTK_SIGNAL_FUNC (html_size_req), NULL);
    gtk_signal_connect (GTK_OBJECT (*html), "url_requested",
                GTK_SIGNAL_FUNC (on_url_requested), root);
    gtk_signal_connect (GTK_OBJECT (*html), "link_clicked",
                GTK_SIGNAL_FUNC (on_link_clicked), root);

    *stream = gtk_html_begin (*html, "");
    if (init) {
        mail_html_write (*html, *stream, HTML_HEADER
                 "<BODY TEXT=\"#000000\" "
                 "BGCOLOR=\"#FFFFFF\">\n");
    }
}

void
mail_html_write (GtkHTML *html, GtkHTMLStreamHandle *stream,
         const char *format, ...)
{
    char *buf;
    va_list ap;

    va_start (ap, format);
    buf = g_strdup_vprintf (format, ap);
    va_end (ap);
    gtk_html_write (html, stream, buf, strlen (buf));
    g_free (buf);
}

void
mail_html_end (GtkHTML *html, GtkHTMLStreamHandle *stream,
           gboolean finish, GtkBox *box)
{
    GtkWidget *scroll;

    scroll = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll),
                    GTK_POLICY_NEVER,
                    GTK_POLICY_NEVER);
    gtk_container_add (GTK_CONTAINER (scroll), GTK_WIDGET (html));

    if (finish)
        mail_html_write (html, stream, "</BODY></HTML>\n");
    gtk_html_end (html, stream, GTK_HTML_STREAM_OK);

    gtk_box_pack_start (box, scroll, FALSE, TRUE, 0);
    gtk_widget_show (GTK_WIDGET (html));
    gtk_widget_show (scroll);
}




/**
 * mail_display_set_message:
 * @mail_display: the mail display object
 * @mime_message: the input camel medium
 *
 * Makes the mail_display object show the contents of the medium
 * param. This means feeding mail_display->body_stream and
 * mail_display->headers_stream with html.
 *
 **/
void 
mail_display_set_message (MailDisplay *mail_display, 
              CamelMedium *medium)
{
    GtkAdjustment *adj;

    /*
     * for the moment, camel-formatter deals only with 
     * mime messages, but in the future, it should be 
     * able to deal with any medium.
     * It can work on pretty much data wrapper, but in 
     * fact, only the medium class has the distinction 
     * header / body 
     */
    if (!CAMEL_IS_MIME_MESSAGE (medium))
        return;

    /* Clean up from previous message. */
    if (mail_display->current_message) {
        GtkContainer *container =
            GTK_CONTAINER (mail_display->inner_box);
        GList *htmls;

        htmls = gtk_container_children (container);
        while (htmls) {
            gtk_container_remove (container, htmls->data);
            htmls = htmls->next;
        }

        gtk_object_unref (GTK_OBJECT (mail_display->current_message));
    }

    mail_display->current_message = CAMEL_MIME_MESSAGE (medium);
    gtk_object_ref (GTK_OBJECT (medium));

    mail_format_mime_message (CAMEL_MIME_MESSAGE (medium),
                  mail_display->inner_box);

    adj = gtk_scrolled_window_get_vadjustment (mail_display->scroll);
    gtk_adjustment_set_value (adj, 0);
    gtk_scrolled_window_set_vadjustment (mail_display->scroll, adj);

    adj = gtk_scrolled_window_get_hadjustment (mail_display->scroll);
    gtk_adjustment_set_value (adj, 0);
    gtk_scrolled_window_set_hadjustment (mail_display->scroll, adj);
}


/*----------------------------------------------------------------------*
 *                     Standard Gtk+ Class functions
 *----------------------------------------------------------------------*/

static void
mail_display_init (GtkObject *object)
{
    MailDisplay *mail_display = MAIL_DISPLAY (object);

    /* various other initializations */
    mail_display->current_message = NULL;
}

static void
mail_display_destroy (GtkObject *object)
{
    /* MailDisplay *mail_display = MAIL_DISPLAY (object); */

    mail_display_parent_class->destroy (object);
}

static void
mail_display_class_init (GtkObjectClass *object_class)
{
    object_class->destroy = mail_display_destroy;
    mail_display_parent_class = gtk_type_class (PARENT_TYPE);
}

GtkWidget *
mail_display_new (FolderBrowser *parent_folder_browser)
{
    MailDisplay *mail_display = gtk_type_new (mail_display_get_type ());
    GtkWidget *scroll, *vbox;

    g_assert (parent_folder_browser);

    mail_display->parent_folder_browser = parent_folder_browser;

    gtk_box_set_homogeneous (GTK_BOX (mail_display), FALSE);
    gtk_widget_show (GTK_WIDGET (mail_display));

    /* For now, the box only contains a single scrolled window,
     * which in turn contains a vbox itself.
     */
    scroll = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll),
                    GTK_POLICY_AUTOMATIC,
                    GTK_POLICY_ALWAYS);
    gtk_box_pack_start_defaults (GTK_BOX (mail_display),
                     GTK_WIDGET (scroll));
    gtk_widget_show (GTK_WIDGET (scroll));

    vbox = gtk_vbox_new (FALSE, 2);
    gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scroll),
                           vbox);
    gtk_widget_show (GTK_WIDGET (vbox));

    mail_display->scroll = GTK_SCROLLED_WINDOW (scroll);
    mail_display->inner_box = GTK_BOX (vbox);

    return GTK_WIDGET (mail_display);
}



E_MAKE_TYPE (mail_display, "MailDisplay", MailDisplay, mail_display_class_init, mail_display_init, PARENT_TYPE);