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authorDan Winship <danw@src.gnome.org>2000-04-27 11:32:10 +0800
committerDan Winship <danw@src.gnome.org>2000-04-27 11:32:10 +0800
commit67b29dfe36a67a9145187c955855df29daec34b2 (patch)
treef3d79ef60e3021fa643a436baca34eea4a226b40 /mail
parente3f95dc9d46d8feff06ee81767cf4785286aa7cf (diff)
downloadgsoc2013-evolution-67b29dfe36a67a9145187c955855df29daec34b2.tar.gz
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gsoc2013-evolution-67b29dfe36a67a9145187c955855df29daec34b2.zip
Reorganize a bit and add a new flag, TEXT_TO_HTML_CONVERT_URLS to
* mail-format.c (text_to_html): Reorganize a bit and add a new flag, TEXT_TO_HTML_CONVERT_URLS to recognize and wrap URLs in text. * mail-display.c (mail_html_new): Add link_clicked signal handler. (on_link_clicked): Use gnome_url_show to launch a browser. The Dingus has landed. svn path=/trunk/; revision=2653
Diffstat (limited to 'mail')
-rw-r--r--mail/ChangeLog7
-rw-r--r--mail/mail-display.c8
-rw-r--r--mail/mail-format.c225
3 files changed, 145 insertions, 95 deletions
diff --git a/mail/ChangeLog b/mail/ChangeLog
index 676516a8cd..b78f6d01ab 100644
--- a/mail/ChangeLog
+++ b/mail/ChangeLog
@@ -1,5 +1,12 @@
2000-04-26 Dan Winship <danw@helixcode.com>
+ * mail-format.c (text_to_html): Reorganize a bit and add a new
+ flag, TEXT_TO_HTML_CONVERT_URLS to recognize and wrap URLs
+ in text.
+
+ * mail-display.c (mail_html_new): Add link_clicked signal handler.
+ (on_link_clicked): Use gnome_url_show to launch a browser.
+
* mail-format.c: update for CamelStream changes. Update for
CamelMimeBodyPart -> CamelMimePart
diff --git a/mail/mail-display.c b/mail/mail-display.c
index f5595dd671..d7ba658241 100644
--- a/mail/mail-display.c
+++ b/mail/mail-display.c
@@ -35,6 +35,12 @@ cid_stream (const char *cid, CamelMimeMessage *message)
}
static void
+on_link_clicked (GtkHTML *html, const char *url, gpointer user_data)
+{
+ gnome_url_show (url);
+}
+
+static void
on_url_requested (GtkHTML *html, const char *url, GtkHTMLStreamHandle handle,
gpointer user_data)
{
@@ -78,6 +84,8 @@ mail_html_new (GtkHTML **html, GtkHTMLStreamHandle **stream,
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) {
diff --git a/mail/mail-format.c b/mail/mail-format.c
index ee0b6135c6..033440e876 100644
--- a/mail/mail-format.c
+++ b/mail/mail-format.c
@@ -77,13 +77,6 @@ static void handle_via_bonobo (CamelMimePart *part,
CamelMimeMessage *root,
GtkBox *box);
-/* encodes some characters into their 'escaped' version;
- * so '<' turns into '&lt;', and '"' turns into '&quot;' */
-static gchar *text_to_html (const guchar *input, guint len,
- guint *encoded_len_return, gboolean add_pre,
- gboolean convert_newlines_to_br,
- gboolean convert_space_hack);
-
/* writes the header info for a mime message into an html stream */
static void write_headers (CamelMimeMessage *mime_message, GtkBox *box);
@@ -346,36 +339,107 @@ call_handler_function (CamelMimePart *part, CamelMimeMessage *root,
handle_unknown_type (part, root, box);
}
+int tth_interesting[] = {
+ 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x00 - 0x0f */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x10 - 0x1f */
+ 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* sp - / */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 1, 2, 1, 2, /* 0 - ? */
+ 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ - O */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, /* P - _ */
+ 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* ` - o */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, /* p - del */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x80 - 0x8f */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x90 - 0x9f */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xa0 - 0xaf */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xb0 - 0xbf */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xc0 - 0xcf */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xd0 - 0xdf */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xe0 - 0xef */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 /* 0xf0 - 0xff */
+};
+#define TTH_SPECIAL 1
+#define TTH_PUNCTUATION 2
+#define TTH_ESCAPED 3
+#define TTH_EOF 4
+
+#define TEXT_TO_HTML_PRE (1 << 0)
+#define TEXT_TO_HTML_CONVERT_NL (1 << 1)
+#define TEXT_TO_HTML_CONVERT_SPACES (1 << 2)
+#define TEXT_TO_HTML_CONVERT_URLS (1 << 3)
+
+static char *
+check_size (char **buffer, int *buffer_size, char *out, int len)
+{
+ if (out + len > *buffer + *buffer_size) {
+ int index = out - *buffer;
+
+ *buffer_size *= 2;
+ *buffer = g_realloc (*buffer, *buffer_size);
+ out = *buffer + index;
+ }
+ return out;
+}
/* Convert plain text into equivalent-looking valid HTML. */
-static gchar *
-text_to_html (const guchar *input, guint len,
- guint *encoded_len_return, gboolean add_pre,
- gboolean convert_newlines_to_br,
- gboolean convert_space_hack)
+static char *
+text_to_html (const unsigned char *input, unsigned int flags)
{
- const guchar *cur = input;
- guchar *buffer = NULL;
- guchar *out = NULL;
- gint buffer_size = 0;
+ const unsigned char *cur = input, *end;
+ char *buffer = NULL;
+ char *out = NULL;
+ int buffer_size = 0;
/* Allocate a translation buffer. */
- buffer_size = len * 2 + 5;
+ buffer_size = strlen (input) * 2 + 5;
buffer = g_malloc (buffer_size);
out = buffer;
- if (add_pre)
+ if (flags & TEXT_TO_HTML_PRE)
out += sprintf (out, "<PRE>\n");
- while (len--) {
- if (out - buffer > buffer_size - 100) {
- gint index = out - buffer;
-
- buffer_size *= 2;
- buffer = g_realloc (buffer, buffer_size);
- out = buffer + index;
+ while (*cur) {
+ if (isalpha (*cur) && (flags & TEXT_TO_HTML_CONVERT_URLS)) {
+ if (!strncasecmp (cur, "http://", 7) ||
+ !strncasecmp (cur, "ftp://", 6) ||
+ !strncasecmp (cur, "nntp://", 7) ||
+ !strncasecmp (cur, "mailto:", 7) ||
+ !strncasecmp (cur, "news:", 5)) {
+ /* Skip to end of URL. */
+ end = cur;
+ while (*end && !isspace (*end) && *end != '"')
+ end++;
+
+ /* Back up if we probably went too far. */
+ while (end > cur &&
+ strchr (",.!?;:>", *(end - 1)))
+ end--;
+
+ out = check_size (&buffer, &buffer_size, out,
+ (end - cur) * 2 + 15);
+ out += sprintf (out,
+ "<a href=\"%.*s\">%.*s</a>",
+ end - cur, cur,
+ end - cur, cur);
+ cur = end;
+ }
}
+ /* Skip until we need to care. */
+ end = cur;
+ while (!tth_interesting[*end] ||
+ (tth_interesting[*end] == TTH_PUNCTUATION &&
+ !(flags & TEXT_TO_HTML_CONVERT_URLS)))
+ end++;
+
+ out = check_size (&buffer, &buffer_size, out,
+ end - cur + 10);
+ memcpy (out, cur, end - cur);
+ out += end - cur;
+
+ if (!*end)
+ break;
+ cur = end;
+
switch (*cur) {
case '<':
strcpy (out, "&lt;");
@@ -399,16 +463,15 @@ text_to_html (const guchar *input, guint len,
case '\n':
*out++ = *cur;
- if (convert_newlines_to_br) {
+ if (flags & TEXT_TO_HTML_CONVERT_NL) {
strcpy (out, "<br>");
out += 4;
}
break;
case ' ':
- if (convert_space_hack) {
- if (cur == input ||
- (len > 0 && *(cur + 1) == ' ')) {
+ if (flags & TEXT_TO_HTML_CONVERT_SPACES) {
+ if (cur == input || *(cur + 1) == ' ') {
strcpy (out, "&nbsp;");
out += 6;
break;
@@ -429,12 +492,11 @@ text_to_html (const guchar *input, guint len,
cur++;
}
- if (add_pre)
+ out = check_size (&buffer, &buffer_size, out, 7);
+ if (flags & TEXT_TO_HTML_PRE)
strcpy (out, "</PRE>");
else
*out = '\0';
- if (encoded_len_return)
- *encoded_len_return = out - buffer;
return buffer;
}
@@ -449,8 +511,8 @@ write_field_to_stream (const char *description, const char *value,
if (value) {
unsigned char *p;
- encoded_value = text_to_html (value, strlen(value),
- NULL, FALSE, TRUE, FALSE);
+ encoded_value = text_to_html (value, TEXT_TO_HTML_CONVERT_NL |
+ TEXT_TO_HTML_CONVERT_URLS);
for (p = (unsigned char *)encoded_value; *p; p++) {
if (!isprint (*p))
*p = '?';
@@ -543,6 +605,25 @@ write_headers (CamelMimeMessage *mime_message, GtkBox *box)
#define MIME_TYPE_SUB(a) ((camel_mime_part_get_content_type (CAMEL_MIME_PART (a)))->subtype)
+static char *
+get_data_wrapper_text (CamelDataWrapper *data)
+{
+ CamelStream *memstream;
+ GByteArray *ba;
+ char *text;
+
+ ba = g_byte_array_new ();
+ memstream = camel_stream_mem_new_with_byte_array (ba);
+
+ camel_data_wrapper_write_to_stream (data, memstream);
+ text = g_malloc (ba->len + 1);
+ memcpy (text, ba->data, ba->len);
+ text[ba->len] = '\0';
+
+ camel_stream_close (memstream);
+ return text;
+}
+
/*----------------------------------------------------------------------*
* Mime handling functions
*----------------------------------------------------------------------*/
@@ -554,11 +635,7 @@ handle_text_plain (CamelMimePart *part, CamelMimeMessage *root, GtkBox *box)
GtkHTMLStreamHandle *stream;
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
- char *text;
- CamelStream *wrapper_output_stream;
- gchar tmp_buffer[4096];
- gint nb_bytes_read;
- gboolean empty_text = TRUE;
+ char *text, *htmltext;
GMimeContentField *type;
const char *format;
@@ -573,35 +650,14 @@ handle_text_plain (CamelMimePart *part, CamelMimeMessage *root, GtkBox *box)
return;
}
- /* Get the output stream of the data wrapper. */
- wrapper_output_stream = camel_data_wrapper_get_output_stream (wrapper);
- camel_stream_reset (wrapper_output_stream);
-
- do {
- /* Read next chunk of text. */
- nb_bytes_read = camel_stream_read (wrapper_output_stream,
- tmp_buffer,
- sizeof (tmp_buffer));
-
- /* If there's any text, write it to the stream. */
- if (nb_bytes_read > 0) {
- int returned_strlen;
-
- empty_text = FALSE;
-
- /* replace '<' with '&lt;', etc. */
- text = text_to_html (tmp_buffer,
- nb_bytes_read,
- &returned_strlen,
- FALSE, FALSE, FALSE);
- gtk_html_write (html, stream, text,
- returned_strlen);
- g_free (text);
- }
- } while (!camel_stream_eos (wrapper_output_stream));
-
- if (empty_text)
+ text = get_data_wrapper_text (wrapper);
+ if (text && *text) {
+ htmltext = text_to_html (text, TEXT_TO_HTML_CONVERT_URLS);
+ mail_html_write (html, stream, htmltext);
+ g_free (htmltext);
+ } else
mail_html_write (html, stream, "<b>(empty)</b>");
+ g_free (text);
mail_html_write (html, stream, "</pre>\n");
mail_html_end (html, stream, TRUE, box);
@@ -617,7 +673,7 @@ handle_text_plain_flowed (CamelMimePart *part, CamelMimeMessage *root,
camel_medium_get_content_object (CAMEL_MEDIUM (part));
char *text, *line, *p;
CamelStream *wrapper_output_stream, *buffer;
- int prevquoting = 0, quoting, len, returned_strlen;
+ int prevquoting = 0, quoting, len;
gboolean br_pending = FALSE;
mail_html_new (&html, &stream, root, TRUE);
@@ -662,15 +718,14 @@ handle_text_plain_flowed (CamelMimePart *part, CamelMimeMessage *root,
if (*p == ' ')
p++;
- len = strlen (p);
-
/* replace '<' with '&lt;', etc. */
- text = text_to_html (p, len, &returned_strlen,
- FALSE, FALSE, TRUE);
- if (returned_strlen)
- gtk_html_write (html, stream, text, returned_strlen);
+ text = text_to_html (p, TEXT_TO_HTML_CONVERT_SPACES |
+ TEXT_TO_HTML_CONVERT_URLS);
+ if (text && *text)
+ mail_html_write (html, stream, text);
g_free (text);
+ len = strlen (p);
if (len == 0 || p[len - 1] != ' ' || !strcmp (p, "-- "))
br_pending = TRUE;
g_free (line);
@@ -1179,25 +1234,6 @@ handle_via_bonobo (CamelMimePart *part, CamelMimeMessage *root, GtkBox *box)
static char *
-get_data_wrapper_text (CamelDataWrapper *data)
-{
- CamelStream *memstream;
- GByteArray *ba;
- char *text;
-
- ba = g_byte_array_new ();
- memstream = camel_stream_mem_new_with_byte_array (ba);
-
- camel_data_wrapper_write_to_stream (data, memstream);
- text = g_malloc (ba->len + 1);
- memcpy (text, ba->data, ba->len);
- text[ba->len] = '\0';
-
- camel_stream_close (memstream);
- return text;
-}
-
-static char *
reply_body (CamelDataWrapper *data, gboolean *html)
{
CamelMultipart *mp;
@@ -1340,8 +1376,7 @@ mail_generate_reply (CamelMimeMessage *message, gboolean to_all)
/* Now convert that to HTML. */
repl_text = text_to_html (quoted_text,
- strlen (quoted_text),
- &len, TRUE, FALSE, FALSE);
+ TEXT_TO_HTML_PRE);
g_free (quoted_text);
}
e_msg_composer_set_body_text (composer, repl_text);