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claws-mail/src/textview.c
Paul Mangan daffaa2a3c sync with sylpheed 0.5.3 release
2001-08-16 11:28:10 +00:00

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/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
* Copyright (C) 1999-2001 Hiroyuki Yamamoto
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "defs.h"
#include <glib.h>
#include <gdk/gdk.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtkvbox.h>
#include <gtk/gtkscrolledwindow.h>
#include <gtk/gtktext.h>
#include <gtk/gtksignal.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "intl.h"
#include "main.h"
#include "summaryview.h"
#include "procheader.h"
#include "prefs_common.h"
#include "codeconv.h"
#include "utils.h"
#include "gtkutils.h"
#include "procmime.h"
#include "html.h"
#include "compose.h"
#include "addressbook.h"
#include "displayheader.h"
#define FONT_LOAD(font, s) \
{ \
gchar *fontstr, *p; \
\
Xstrdup_a(fontstr, s, ); \
if ((p = strchr(fontstr, ',')) != NULL) *p = '\0'; \
font = gdk_font_load(fontstr); \
}
typedef struct _RemoteURI RemoteURI;
struct _RemoteURI
{
gchar *uri;
guint start;
guint end;
};
static GdkColor quote_colors[3] = {
{(gulong)0, (gushort)0, (gushort)0, (gushort)0},
{(gulong)0, (gushort)0, (gushort)0, (gushort)0},
{(gulong)0, (gushort)0, (gushort)0, (gushort)0}
};
static GdkColor uri_color = {
(gulong)0,
(gushort)0,
(gushort)0,
(gushort)0
};
static GdkColor emphasis_color = {
(gulong)0,
(gushort)0,
(gushort)0,
(gushort)0xcfff
};
static GdkColor error_color = {
(gulong)0,
(gushort)0xefff,
(gushort)0,
(gushort)0
};
static GdkFont *spacingfont;
static void textview_show_html (TextView *textview,
FILE *fp,
CodeConverter *conv);
static void textview_write_line (TextView *textview,
const gchar *str,
CodeConverter *conv);
static GPtrArray *textview_scan_header (TextView *textview,
FILE *fp);
static void textview_show_header (TextView *textview,
GPtrArray *headers);
static void textview_key_pressed (GtkWidget *widget,
GdkEventKey *event,
TextView *textview);
static void textview_button_pressed (GtkWidget *widget,
GdkEventButton *event,
TextView *textview);
static void textview_uri_list_remove_all(GSList *uri_list);
static void textview_smooth_scroll_do (TextView *textview,
gfloat old_value,
gfloat last_value,
gint step);
static void textview_smooth_scroll_one_line (TextView *textview,
gboolean up);
static gboolean textview_smooth_scroll_page (TextView *textview,
gboolean up);
TextView *textview_create(void)
{
TextView *textview;
GtkWidget *vbox;
GtkWidget *scrolledwin_sb;
GtkWidget *scrolledwin_mb;
GtkWidget *text_sb;
GtkWidget *text_mb;
debug_print(_("Creating text view...\n"));
textview = g_new0(TextView, 1);
scrolledwin_sb = gtk_scrolled_window_new(NULL, NULL);
scrolledwin_mb = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin_sb),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin_mb),
GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
gtk_widget_set_usize(scrolledwin_sb, prefs_common.mainview_width, -1);
gtk_widget_set_usize(scrolledwin_mb, prefs_common.mainview_width, -1);
/* create GtkText widgets for single-byte and multi-byte character */
text_sb = gtk_text_new(NULL, NULL);
text_mb = gtk_text_new(NULL, NULL);
GTK_TEXT(text_sb)->default_tab_width = 8;
GTK_TEXT(text_mb)->default_tab_width = 8;
gtk_widget_show(text_sb);
gtk_widget_show(text_mb);
gtk_text_set_word_wrap(GTK_TEXT(text_sb), TRUE);
gtk_text_set_word_wrap(GTK_TEXT(text_mb), TRUE);
gtk_widget_ensure_style(text_sb);
gtk_widget_ensure_style(text_mb);
if (text_sb->style && text_sb->style->font->type == GDK_FONT_FONTSET) {
GtkStyle *style;
style = gtk_style_copy(text_sb->style);
gdk_font_unref(style->font);
FONT_LOAD(style->font, NORMAL_FONT);
gtk_widget_set_style(text_sb, style);
}
if (text_mb->style && text_mb->style->font->type == GDK_FONT_FONT) {
GtkStyle *style;
style = gtk_style_copy(text_mb->style);
gdk_font_unref(style->font);
style->font = gdk_fontset_load(NORMAL_FONT);
gtk_widget_set_style(text_mb, style);
}
gtk_widget_ref(scrolledwin_sb);
gtk_widget_ref(scrolledwin_mb);
gtk_container_add(GTK_CONTAINER(scrolledwin_sb), text_sb);
gtk_container_add(GTK_CONTAINER(scrolledwin_mb), text_mb);
gtk_signal_connect(GTK_OBJECT(text_sb), "key_press_event",
GTK_SIGNAL_FUNC(textview_key_pressed),
textview);
gtk_signal_connect(GTK_OBJECT(text_sb), "button_press_event",
GTK_SIGNAL_FUNC(textview_button_pressed),
textview);
gtk_signal_connect(GTK_OBJECT(text_mb), "key_press_event",
GTK_SIGNAL_FUNC(textview_key_pressed),
textview);
gtk_signal_connect(GTK_OBJECT(text_mb), "button_press_event",
GTK_SIGNAL_FUNC(textview_button_pressed),
textview);
gtk_widget_show(scrolledwin_sb);
gtk_widget_show(scrolledwin_mb);
vbox = gtk_vbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(vbox), scrolledwin_sb, TRUE, TRUE, 0);
textview->vbox = vbox;
textview->scrolledwin = scrolledwin_sb;
textview->scrolledwin_sb = scrolledwin_sb;
textview->scrolledwin_mb = scrolledwin_mb;
textview->text = text_sb;
textview->text_sb = text_sb;
textview->text_mb = text_mb;
textview->text_is_mb = FALSE;
textview->uri_list = NULL;
return textview;
}
void textview_init(TextView *textview)
{
gtkut_widget_disable_theme_engine(textview->text_sb);
gtkut_widget_disable_theme_engine(textview->text_mb);
textview_update_message_colors();
textview_set_font(textview, NULL);
}
void textview_update_message_colors(void)
{
GdkColor black = {0, 0, 0, 0};
if (prefs_common.enable_color) {
/* grab the quote colors, converting from an int to a GdkColor */
gtkut_convert_int_to_gdk_color(prefs_common.quote_level1_col,
&quote_colors[0]);
gtkut_convert_int_to_gdk_color(prefs_common.quote_level2_col,
&quote_colors[1]);
gtkut_convert_int_to_gdk_color(prefs_common.quote_level3_col,
&quote_colors[2]);
gtkut_convert_int_to_gdk_color(prefs_common.uri_col,
&uri_color);
} else {
quote_colors[0] = quote_colors[1] = quote_colors[2] =
uri_color = emphasis_color = black;
}
}
void textview_show_message(TextView *textview, MimeInfo *mimeinfo,
const gchar *file)
{
FILE *fp;
if ((fp = fopen(file, "r")) == NULL) {
FILE_OP_ERROR(file, "fopen");
return;
}
textview_show_part(textview, mimeinfo, fp);
fclose(fp);
}
void textview_show_part(TextView *textview, MimeInfo *mimeinfo, FILE *fp)
{
GtkText *text;
gchar buf[BUFFSIZE];
const gchar *boundary = NULL;
gint boundary_len = 0;
const gchar *charset = NULL;
FILE *tmpfp;
GPtrArray *headers = NULL;
CodeConverter *conv;
g_return_if_fail(mimeinfo != NULL);
g_return_if_fail(fp != NULL);
if (mimeinfo->mime_type == MIME_MULTIPART) {
if (mimeinfo->sub) {
mimeinfo = mimeinfo->sub;
if (fseek(fp, mimeinfo->fpos, SEEK_SET) < 0) {
perror("fseek");
return;
}
} else
return;
}
if (mimeinfo->parent && mimeinfo->parent->boundary) {
boundary = mimeinfo->parent->boundary;
boundary_len = strlen(boundary);
}
if (!boundary && mimeinfo->mime_type == MIME_TEXT) {
if (fseek(fp, mimeinfo->fpos, SEEK_SET) < 0)
perror("fseek");
headers = textview_scan_header(textview, fp);
} else {
if (mimeinfo->mime_type == MIME_TEXT && mimeinfo->parent) {
glong fpos;
if ((fpos = ftell(fp)) < 0)
perror("ftell");
else if (fseek(fp, mimeinfo->parent->fpos, SEEK_SET)
< 0)
perror("fseek");
else {
headers = textview_scan_header(textview, fp);
if (fseek(fp, fpos, SEEK_SET) < 0)
perror("fseek");
}
}
while (fgets(buf, sizeof(buf), fp) != NULL)
if (buf[0] == '\r' || buf[0] == '\n') break;
}
/* display attached RFC822 single text message */
if (mimeinfo->parent && mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
if (headers) procheader_header_array_destroy(headers);
if (!mimeinfo->sub || mimeinfo->sub->children) return;
headers = textview_scan_header(textview, fp);
mimeinfo = mimeinfo->sub;
} else if (!mimeinfo->parent &&
mimeinfo->mime_type == MIME_MESSAGE_RFC822) {
if (headers) procheader_header_array_destroy(headers);
if (!mimeinfo->sub) return;
headers = textview_scan_header(textview, fp);
mimeinfo = mimeinfo->sub;
}
if (prefs_common.force_charset)
charset = prefs_common.force_charset;
else if (mimeinfo->charset)
charset = mimeinfo->charset;
textview_set_font(textview, charset);
conv = conv_code_converter_new(charset);
textview_clear(textview);
text = GTK_TEXT(textview->text);
gtk_text_freeze(text);
if (headers) {
textview_show_header(textview, headers);
procheader_header_array_destroy(headers);
}
tmpfp = procmime_decode_content(NULL, fp, mimeinfo);
if (tmpfp) {
if (mimeinfo->mime_type == MIME_TEXT_HTML)
textview_show_html(textview, tmpfp, conv);
else
while (fgets(buf, sizeof(buf), tmpfp) != NULL)
textview_write_line(textview, buf, conv);
fclose(tmpfp);
}
conv_code_converter_destroy(conv);
gtk_text_thaw(text);
}
#define TEXT_INSERT(str) \
gtk_text_insert(text, textview->msgfont, NULL, NULL, str, -1)
void textview_show_mime_part(TextView *textview, MimeInfo *partinfo)
{
GtkText *text;
if (!partinfo) return;
textview_set_font(textview, NULL);
text = GTK_TEXT(textview->text);
textview_clear(textview);
gtk_text_freeze(text);
TEXT_INSERT(_("To save this part, pop up the context menu with "));
TEXT_INSERT(_("right click and select `Save as...', "));
TEXT_INSERT(_("or press `y' key.\n\n"));
TEXT_INSERT(_("To display this part as a text message, select "));
TEXT_INSERT(_("`Display as text', or press `t' key.\n\n"));
TEXT_INSERT(_("To open this part with external program, select "));
TEXT_INSERT(_("`Open' or `Open with...', "));
TEXT_INSERT(_("or double-click, or click the center button, "));
TEXT_INSERT(_("or press `l' key."));
gtk_text_thaw(text);
}
#if USE_GPGME
void textview_show_signature_part(TextView *textview, MimeInfo *partinfo)
{
GtkText *text;
if (!partinfo) return;
textview_set_font(textview, NULL);
text = GTK_TEXT(textview->text);
textview_clear(textview);
gtk_text_freeze(text);
if (partinfo->sigstatus_full == NULL) {
TEXT_INSERT(_("This signature has not been checked yet.\n"));
TEXT_INSERT(_("To check it, pop up the context menu with\n"));
TEXT_INSERT(_("right click and select `Check signature'.\n"));
} else {
TEXT_INSERT(partinfo->sigstatus_full);
}
gtk_text_thaw(text);
}
#endif /* USE_GPGME */
#undef TEXT_INSERT
static void textview_show_html(TextView *textview, FILE *fp,
CodeConverter *conv)
{
HTMLParser *parser;
gchar *str;
parser = html_parser_new(fp, conv);
g_return_if_fail(parser != NULL);
while ((str = html_parse(parser)) != NULL) {
textview_write_line(textview, str, NULL);
}
html_parser_destroy(parser);
}
/* get_uri_part() - retrieves a URI starting from scanpos.
Returns TRUE if succesful */
static gboolean get_uri_part(const gchar *start, const gchar *scanpos,
const gchar **bp, const gchar **ep)
{
const gchar *ep_;
g_return_val_if_fail(start != NULL, FALSE);
g_return_val_if_fail(scanpos != NULL, FALSE);
g_return_val_if_fail(bp != NULL, FALSE);
g_return_val_if_fail(ep != NULL, FALSE);
*bp = scanpos;
/* find end point of URI */
for (ep_ = scanpos; *ep_ != '\0'; ep_++) {
if (!isgraph(*ep_) || !isascii(*ep_) || strchr("()<>\"", *ep_))
break;
}
/* no punctuation at end of string */
/* FIXME: this stripping of trailing punctuations may bite with other URIs.
* should pass some URI type to this function and decide on that whether
* to perform punctuation stripping */
#define IS_REAL_PUNCT(ch) \
(ispunct(ch) && ((ch) != '/'))
for (; ep_ - 1 > scanpos + 1 && IS_REAL_PUNCT(*(ep_ - 1)); ep_--)
;
#undef IS_REAL_PUNCT
*ep = ep_;
return TRUE;
}
static gchar *make_uri_string(const gchar *bp, const gchar *ep)
{
return g_strndup(bp, ep - bp);
}
/* valid mail address characters */
#define IS_RFC822_CHAR(ch) \
(isascii(ch) && \
(ch) > 32 && \
(ch) != 127 && \
!isspace(ch) && \
!strchr("()<>\"", (ch)))
#define IS_QUOTE(ch) ((ch) == '\'' || (ch) == '"')
/* get_email_part() - retrieves an email address. Returns TRUE if succesful */
static gboolean get_email_part(const gchar *start, const gchar *scanpos,
const gchar **bp, const gchar **ep)
{
/* more complex than the uri part because we need to scan back and forward starting from
* the scan position. */
gboolean result = FALSE;
const gchar *bp_ = NULL;
const gchar *ep_ = NULL;
/* the informative part of the email address (describing the name
* of the email address owner) may contain quoted parts. the
* closure stack stores the last encountered quotes. */
gchar closure_stack[128];
gchar *ptr = closure_stack;
g_return_val_if_fail(start != NULL, FALSE);
g_return_val_if_fail(scanpos != NULL, FALSE);
g_return_val_if_fail(bp != NULL, FALSE);
g_return_val_if_fail(ep != NULL, FALSE);
/* scan start of address */
for (bp_ = scanpos - 1; bp_ >= start && IS_RFC822_CHAR(*bp_); bp_--)
;
/* TODO: should start with an alnum? */
bp_++;
for (; bp_ < scanpos && !isalnum(*bp_); bp_++)
;
if (bp_ != scanpos) {
/* scan end of address */
for (ep_ = scanpos + 1; *ep_ && IS_RFC822_CHAR(*ep_); ep_++)
;
/* TODO: really should terminate with an alnum? */
for (; ep_ > scanpos && !isalnum(*ep_); --ep_)
;
ep_++;
if (ep_ > scanpos + 1) {
*ep = ep_;
*bp = bp_;
result = TRUE;
}
}
if (!result) return FALSE;
/* skip if it's between quotes "'alfons@proteus.demon.nl'" <alfons@proteus.demon.nl> */
if (bp_ - 1 > start && IS_QUOTE(*(bp_ - 1)) && IS_QUOTE(*ep_))
return FALSE;
/* see if this is <bracketed>; in this case we also scan for the informative part. */
if (bp_ - 1 <= start || *(bp_ - 1) != '<' || *ep_ != '>')
return TRUE;
#define FULL_STACK() ((size_t) (ptr - closure_stack) >= sizeof closure_stack)
#define IN_STACK() (ptr > closure_stack)
/* has underrun check */
#define POP_STACK() if(IN_STACK()) --ptr
/* has overrun check */
#define PUSH_STACK(c) if(!FULL_STACK()) *ptr++ = (c); else return TRUE
/* has underrun check */
#define PEEK_STACK() (IN_STACK() ? *(ptr - 1) : 0)
ep_++;
/* scan for the informative part. */
for (bp_ -= 2; bp_ >= start; bp_--) {
/* if closure on the stack keep scanning */
if (PEEK_STACK() == *bp_) {
POP_STACK();
continue;
}
if (*bp_ == '\'' || *bp_ == '"') {
PUSH_STACK(*bp_);
continue;
}
/* if nothing in the closure stack, do the special conditions
* the following if..else expression simply checks whether
* a token is acceptable. if not acceptable, the clause
* should terminate the loop with a 'break' */
if (!PEEK_STACK()) {
if (*bp_ == '-'
&& (((bp_ - 1) >= start) && isalnum(*(bp_ - 1)))
&& (((bp_ + 1) < ep_) && isalnum(*(bp_ + 1)))) {
/* hyphens are allowed, but only in
between alnums */
} else if (!ispunct(*bp_)) {
/* but anything not being a punctiation
is ok */
} else {
break; /* anything else is rejected */
}
}
}
bp_++;
#undef PEEK_STACK
#undef PUSH_STACK
#undef POP_STACK
#undef IN_STACK
#undef FULL_STACK
/* scan forward (should start with an alnum) */
for (; *bp_ != '<' && isspace(*bp_) && *bp_ != '"'; bp_++)
;
*ep = ep_;
*bp = bp_;
return result;
}
#undef IS_QUOTE
#undef IS_RFC822_CHAR
static gchar *make_email_string(const gchar *bp, const gchar *ep)
{
/* returns a mailto: URI; mailto: is also used to detect the
* uri type later on in the button_pressed signal handler */
gchar *tmp;
gchar *result;
tmp = g_strndup(bp, ep - bp);
result = g_strconcat("mailto:", tmp, NULL);
g_free(tmp);
return result;
}
#define ADD_TXT_POS(bp_, ep_, pti_) \
if ((last->next = alloca(sizeof(struct txtpos))) != NULL) { \
last = last->next; \
last->bp = (bp_); last->ep = (ep_); last->pti = (pti_); \
last->next = NULL; \
} else { \
g_warning("alloc error scanning URIs\n"); \
gtk_text_insert(text, textview->msgfont, fg_color, NULL, \
linebuf, -1); \
return; \
}
/* textview_make_clickable_parts() - colorizes clickable parts */
static void textview_make_clickable_parts(TextView *textview,
GdkFont *font,
GdkColor *fg_color,
GdkColor *uri_color,
const gchar *linebuf)
{
/* parse table - in order of priority */
struct table {
const gchar *needle; /* token */
/* token search function */
gchar *(*search) (const gchar *haystack,
const gchar *needle);
/* part parsing function */
gboolean (*parse) (const gchar *start,
const gchar *scanpos,
const gchar **bp_,
const gchar **ep_);
/* part to URI function */
gchar *(*build_uri) (const gchar *bp,
const gchar *ep);
};
static struct table parser[] = {
{"http://", strcasestr, get_uri_part, make_uri_string},
{"https://", strcasestr, get_uri_part, make_uri_string},
{"ftp://", strcasestr, get_uri_part, make_uri_string},
{"mailto:", strcasestr, get_uri_part, make_uri_string},
{"@", strcasestr, get_email_part, make_email_string}
};
const gint PARSE_ELEMS = sizeof parser / sizeof parser[0];
gint n;
const gchar *walk, *bp, *ep;
struct txtpos {
const gchar *bp, *ep; /* text position */
gint pti; /* index in parse table */
struct txtpos *next; /* next */
} head = {NULL, NULL, 0, NULL}, *last = &head;
GtkText *text = GTK_TEXT(textview->text);
/* parse for clickable parts, and build a list of begin and end positions */
for (walk = linebuf, n = 0;;) {
gint last_index = PARSE_ELEMS;
gchar *scanpos = NULL;
/* FIXME: this looks phony. scanning for anything in the parse table */
for (n = 0; n < PARSE_ELEMS; n++) {
gchar *tmp;
tmp = parser[n].search(walk, parser[n].needle);
if (tmp) {
if (scanpos == NULL || tmp < scanpos) {
scanpos = tmp;
last_index = n;
}
}
}
if (scanpos) {
/* check if URI can be parsed */
if (parser[last_index].parse(linebuf, scanpos, &bp, &ep)
&& (size_t) (ep - bp - 1) > strlen(parser[last_index].needle)) {
ADD_TXT_POS(bp, ep, last_index);
walk = ep;
} else
walk = scanpos +
strlen(parser[last_index].needle);
} else
break;
}
/* colorize this line */
if (head.next) {
const gchar *normal_text = linebuf;
/* insert URIs */
for (last = head.next; last != NULL;
normal_text = last->ep, last = last->next) {
RemoteURI *uri;
uri = g_new(RemoteURI, 1);
if (last->bp - normal_text > 0)
gtk_text_insert(text, font,
fg_color, NULL,
normal_text,
last->bp - normal_text);
uri->uri = parser[last->pti].build_uri(last->bp,
last->ep);
uri->start = gtk_text_get_point(text);
gtk_text_insert(text, font, uri_color,
NULL, last->bp, last->ep - last->bp);
uri->end = gtk_text_get_point(text);
textview->uri_list =
g_slist_append(textview->uri_list, uri);
}
if (*normal_text)
gtk_text_insert(text, font, fg_color,
NULL, normal_text, -1);
} else
gtk_text_insert(text, font, fg_color, NULL, linebuf, -1);
}
#undef ADD_TXT_POS
static void textview_write_line(TextView *textview, const gchar *str,
CodeConverter *conv)
{
GtkText *text = GTK_TEXT(textview->text);
gchar buf[BUFFSIZE];
size_t len;
GdkColor *fg_color;
gint quotelevel = -1;
if (!conv)
strncpy2(buf, str, sizeof(buf));
else if (conv_convert(conv, buf, sizeof(buf), str) < 0) {
gtk_text_insert(text, textview->msgfont,
prefs_common.enable_color
? &error_color : NULL, NULL,
"*** Warning: code conversion failed ***\n",
-1);
return;
}
len = strlen(buf);
if (len > 1 && buf[len - 1] == '\n' && buf[len - 2] == '\r') {
buf[len - 2] = '\n';
buf[len - 1] = '\0';
}
if (prefs_common.conv_mb_alnum) conv_mb_alnum(buf);
fg_color = NULL;
/* change color of quotation
>, foo>, _> ... ok, <foo>, foo bar>, foo-> ... ng
Up to 3 levels of quotations are detected, and each
level is colored using a different color. */
if (prefs_common.enable_color && strchr(buf, '>')) {
quotelevel = get_quote_level(buf);
/* set up the correct foreground color */
if (quotelevel > 2) {
/* recycle colors */
if (prefs_common.recycle_quote_colors)
quotelevel %= 3;
else
quotelevel = 2;
}
}
if (quotelevel == -1)
fg_color = NULL;
else
fg_color = &quote_colors[quotelevel];
if (prefs_common.head_space && spacingfont && buf[0] != '\n')
gtk_text_insert(text, spacingfont, NULL, NULL, " ", 1);
if (prefs_common.enable_color)
textview_make_clickable_parts(textview, textview->msgfont,
fg_color, &uri_color, buf);
else
textview_make_clickable_parts(textview, textview->msgfont,
fg_color, NULL, buf);
}
void textview_clear(TextView *textview)
{
GtkText *text = GTK_TEXT(textview->text);
gtk_text_freeze(text);
gtk_text_backward_delete(text, gtk_text_get_length(text));
gtk_text_thaw(text);
textview_uri_list_remove_all(textview->uri_list);
textview->uri_list = NULL;
}
void textview_destroy(TextView *textview)
{
textview_uri_list_remove_all(textview->uri_list);
textview->uri_list = NULL;
if (!textview->scrolledwin_sb->parent)
gtk_widget_destroy(textview->scrolledwin_sb);
if (!textview->scrolledwin_mb->parent)
gtk_widget_destroy(textview->scrolledwin_mb);
if (textview->msgfont) {
textview->msgfont->ascent = textview->prev_ascent;
textview->msgfont->descent = textview->prev_descent;
gdk_font_unref(textview->msgfont);
}
if (textview->boldfont)
gdk_font_unref(textview->boldfont);
g_free(textview);
}
void textview_set_font(TextView *textview, const gchar *codeset)
{
gboolean use_fontset = TRUE;
/* In multi-byte mode, GtkText can't display 8bit characters
correctly, so it must be single-byte mode. */
if (MB_CUR_MAX > 1) {
if (codeset) {
if (!g_strncasecmp(codeset, "ISO-8859-", 9) ||
!g_strncasecmp(codeset, "KOI8-", 5) ||
!g_strncasecmp(codeset, "CP", 2) ||
!g_strncasecmp(codeset, "WINDOWS-", 8) ||
!g_strcasecmp(codeset, "BALTIC"))
use_fontset = FALSE;
}
} else
use_fontset = FALSE;
if (textview->text_is_mb && !use_fontset) {
GtkWidget *parent;
parent = textview->scrolledwin_mb->parent;
gtk_editable_select_region
(GTK_EDITABLE(textview->text_mb), 0, 0);
gtk_container_remove(GTK_CONTAINER(parent),
textview->scrolledwin_mb);
gtk_container_add(GTK_CONTAINER(parent),
textview->scrolledwin_sb);
textview->text = textview->text_sb;
textview->text_is_mb = FALSE;
} else if (!textview->text_is_mb && use_fontset) {
GtkWidget *parent;
parent = textview->scrolledwin_sb->parent;
gtk_editable_select_region
(GTK_EDITABLE(textview->text_sb), 0, 0);
gtk_container_remove(GTK_CONTAINER(parent),
textview->scrolledwin_sb);
gtk_container_add(GTK_CONTAINER(parent),
textview->scrolledwin_mb);
textview->text = textview->text_mb;
textview->text_is_mb = TRUE;
}
if (prefs_common.textfont) {
if (textview->msgfont) {
textview->msgfont->ascent = textview->prev_ascent;
textview->msgfont->descent = textview->prev_descent;
gdk_font_unref(textview->msgfont);
textview->msgfont = NULL;
}
if (use_fontset)
textview->msgfont =
gdk_fontset_load(prefs_common.textfont);
else {
if (MB_CUR_MAX > 1) {
FONT_LOAD(textview->msgfont,
"-*-courier-medium-r-normal--14-*-*-*-*-*-iso8859-1");
} else {
FONT_LOAD(textview->msgfont,
prefs_common.textfont);
}
}
if (textview->msgfont) {
gint ascent, descent;
textview->prev_ascent = textview->msgfont->ascent;
textview->prev_descent = textview->msgfont->descent;
descent = prefs_common.line_space / 2;
ascent = prefs_common.line_space - descent;
textview->msgfont->ascent += ascent;
textview->msgfont->descent += descent;
}
}
if (!textview->boldfont)
FONT_LOAD(textview->boldfont, BOLD_FONT);
if (!spacingfont)
spacingfont = gdk_font_load("-*-*-medium-r-normal--6-*");
}
enum
{
H_DATE = 0,
H_FROM = 1,
H_TO = 2,
H_NEWSGROUPS = 3,
H_SUBJECT = 4,
H_CC = 5,
H_REPLY_TO = 6,
H_FOLLOWUP_TO = 7,
H_X_MAILER = 8,
H_X_NEWSREADER = 9,
H_USER_AGENT = 10,
H_ORGANIZATION = 11,
};
static GPtrArray *textview_scan_header(TextView *textview, FILE *fp)
{
gchar buf[BUFFSIZE];
GPtrArray *headers, *sorted_headers;
GSList *disphdr_list;
Header *header;
gint i;
g_return_val_if_fail(fp != NULL, NULL);
if (!prefs_common.display_header) {
while (fgets(buf, sizeof(buf), fp) != NULL)
if (buf[0] == '\r' || buf[0] == '\n') break;
return NULL;
}
headers = procheader_get_header_array_asis(fp);
sorted_headers = g_ptr_array_new();
for (disphdr_list = prefs_common.disphdr_list; disphdr_list != NULL;
disphdr_list = disphdr_list->next) {
DisplayHeaderProp *dp =
(DisplayHeaderProp *)disphdr_list->data;
for (i = 0; i < headers->len; i++) {
header = g_ptr_array_index(headers, i);
if (procheader_headername_equal(header->name,
dp->name)) {
if (dp->hidden)
procheader_header_free(header);
else
g_ptr_array_add(sorted_headers, header);
g_ptr_array_remove_index(headers, i);
i--;
}
}
}
if (prefs_common.show_other_header) {
for (i = 0; i < headers->len; i++) {
header = g_ptr_array_index(headers, i);
g_ptr_array_add(sorted_headers, header);
}
}
g_ptr_array_free(headers, FALSE);
return sorted_headers;
}
static void textview_show_header(TextView *textview, GPtrArray *headers)
{
GtkText *text = GTK_TEXT(textview->text);
Header *header;
gint i;
g_return_if_fail(headers != NULL);
gtk_text_freeze(text);
for (i = 0; i < headers->len; i++) {
header = g_ptr_array_index(headers, i);
g_return_if_fail(header->name != NULL);
gtk_text_insert(text, textview->boldfont, NULL, NULL,
header->name, -1);
if (header->name[strlen(header->name) - 1] != ' ')
gtk_text_insert(text, textview->boldfont,
NULL, NULL, " ", 1);
if (procheader_headername_equal(header->name, "Subject") ||
procheader_headername_equal(header->name, "From") ||
procheader_headername_equal(header->name, "To") ||
procheader_headername_equal(header->name, "Cc"))
unfold_line(header->body);
if (prefs_common.enable_color &&
(procheader_headername_equal(header->name, "X-Mailer") ||
procheader_headername_equal(header->name,
"X-Newsreader")) &&
strstr(header->body, "Sylpheed") != NULL)
gtk_text_insert(text, NULL, &emphasis_color, NULL,
header->body, -1);
else if (prefs_common.enable_color) {
textview_make_clickable_parts(textview,
NULL, NULL, &uri_color,
header->body);
} else {
textview_make_clickable_parts(textview,
NULL, NULL, NULL,
header->body);
}
gtk_text_insert(text, textview->msgfont, NULL, NULL, "\n", 1);
}
gtk_text_insert(text, textview->msgfont, NULL, NULL, "\n", 1);
gtk_text_thaw(text);
}
void textview_scroll_one_line(TextView *textview, gboolean up)
{
GtkText *text = GTK_TEXT(textview->text);
gfloat upper;
if (prefs_common.enable_smooth_scroll) {
textview_smooth_scroll_one_line(textview, up);
return;
}
if (!up) {
upper = text->vadj->upper - text->vadj->page_size;
if (text->vadj->value < upper) {
text->vadj->value +=
text->vadj->step_increment * 4;
text->vadj->value =
MIN(text->vadj->value, upper);
gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
"value_changed");
}
} else {
if (text->vadj->value > 0.0) {
text->vadj->value -=
text->vadj->step_increment * 4;
text->vadj->value =
MAX(text->vadj->value, 0.0);
gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
"value_changed");
}
}
}
gboolean textview_scroll_page(TextView *textview, gboolean up)
{
GtkText *text = GTK_TEXT(textview->text);
gfloat upper;
gfloat page_incr;
if (prefs_common.enable_smooth_scroll)
return textview_smooth_scroll_page(textview, up);
if (prefs_common.scroll_halfpage)
page_incr = text->vadj->page_increment / 2;
else
page_incr = text->vadj->page_increment;
if (!up) {
upper = text->vadj->upper - text->vadj->page_size;
if (text->vadj->value < upper) {
text->vadj->value += page_incr;
text->vadj->value = MIN(text->vadj->value, upper);
gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
"value_changed");
} else
return FALSE;
} else {
if (text->vadj->value > 0.0) {
text->vadj->value -= page_incr;
text->vadj->value = MAX(text->vadj->value, 0.0);
gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
"value_changed");
} else
return FALSE;
}
return TRUE;
}
static void textview_smooth_scroll_do(TextView *textview,
gfloat old_value, gfloat last_value,
gint step)
{
GtkText *text = GTK_TEXT(textview->text);
gint change_value;
gboolean up;
gint i;
if (old_value < last_value) {
change_value = last_value - old_value;
up = FALSE;
} else {
change_value = old_value - last_value;
up = TRUE;
}
gdk_key_repeat_disable();
for (i = step; i <= change_value; i += step) {
text->vadj->value = old_value + (up ? -i : i);
gtk_signal_emit_by_name(GTK_OBJECT(text->vadj),
"value_changed");
}
text->vadj->value = last_value;
gtk_signal_emit_by_name(GTK_OBJECT(text->vadj), "value_changed");
gdk_key_repeat_restore();
}
static void textview_smooth_scroll_one_line(TextView *textview, gboolean up)
{
GtkText *text = GTK_TEXT(textview->text);
gfloat upper;
gfloat old_value;
gfloat last_value;
if (!up) {
upper = text->vadj->upper - text->vadj->page_size;
if (text->vadj->value < upper) {
old_value = text->vadj->value;
last_value = text->vadj->value +
text->vadj->step_increment * 4;
last_value = MIN(last_value, upper);
textview_smooth_scroll_do(textview, old_value,
last_value,
prefs_common.scroll_step);
}
} else {
if (text->vadj->value > 0.0) {
old_value = text->vadj->value;
last_value = text->vadj->value -
text->vadj->step_increment * 4;
last_value = MAX(last_value, 0.0);
textview_smooth_scroll_do(textview, old_value,
last_value,
prefs_common.scroll_step);
}
}
}
static gboolean textview_smooth_scroll_page(TextView *textview, gboolean up)
{
GtkText *text = GTK_TEXT(textview->text);
gfloat upper;
gfloat page_incr;
gfloat old_value;
gfloat last_value;
if (prefs_common.scroll_halfpage)
page_incr = text->vadj->page_increment / 2;
else
page_incr = text->vadj->page_increment;
if (!up) {
upper = text->vadj->upper - text->vadj->page_size;
if (text->vadj->value < upper) {
old_value = text->vadj->value;
last_value = text->vadj->value + page_incr;
last_value = MIN(last_value, upper);
textview_smooth_scroll_do(textview, old_value,
last_value,
prefs_common.scroll_step);
} else
return FALSE;
} else {
if (text->vadj->value > 0.0) {
old_value = text->vadj->value;
last_value = text->vadj->value - page_incr;
last_value = MAX(last_value, 0.0);
textview_smooth_scroll_do(textview, old_value,
last_value,
prefs_common.scroll_step);
} else
return FALSE;
}
return TRUE;
}
static void textview_key_pressed(GtkWidget *widget, GdkEventKey *event,
TextView *textview)
{
SummaryView *summaryview = NULL;
if (!event) return;
if (textview->messageview->mainwin)
summaryview = textview->messageview->mainwin->summaryview;
switch (event->keyval) {
case GDK_Tab:
case GDK_Home:
case GDK_Left:
case GDK_Up:
case GDK_Right:
case GDK_Down:
case GDK_Page_Up:
case GDK_Page_Down:
case GDK_End:
case GDK_Control_L:
case GDK_Control_R:
break;
case GDK_space:
if (summaryview)
summary_pass_key_press_event(summaryview, event);
else
textview_scroll_page(textview, FALSE);
break;
case GDK_BackSpace:
case GDK_Delete:
textview_scroll_page(textview, TRUE);
break;
case GDK_Return:
textview_scroll_one_line(textview,
(event->state & GDK_MOD1_MASK) != 0);
break;
default:
if (summaryview)
summary_pass_key_press_event(summaryview, event);
break;
}
}
static void textview_button_pressed(GtkWidget *widget, GdkEventButton *event,
TextView *textview)
{
if (event &&
((event->button == 1 && event->type == GDK_2BUTTON_PRESS)
|| event->button == 2 || event->button == 3)) {
GSList *cur;
guint current_pos;
current_pos = GTK_EDITABLE(textview->text)->current_pos;
for (cur = textview->uri_list; cur != NULL; cur = cur->next) {
RemoteURI *uri = (RemoteURI *)cur->data;
if (current_pos >= uri->start &&
current_pos < uri->end) {
if (!g_strncasecmp(uri->uri, "mailto:", 7)) {
if (event->button == 3) {
gchar *fromname, *fromaddress;
/* extract url */
fromaddress = g_strdup(uri->uri + 7);
/* Hiroyuki: please put this function in utils.c! */
fromname = procheader_get_fromname(fromaddress);
extract_address(fromaddress);
g_message("adding from textview %s <%s>", fromname, fromaddress);
addressbook_add_submenu(NULL, fromname, fromaddress, NULL);
g_free(fromaddress);
g_free(fromname);
} else {
compose_new_with_recipient
(NULL, uri->uri + 7);
}
} else {
open_uri(uri->uri,
prefs_common.uri_cmd);
}
}
}
}
}
static void textview_uri_list_remove_all(GSList *uri_list)
{
GSList *cur;
for (cur = uri_list; cur != NULL; cur = cur->next) {
if (cur->data) {
g_free(((RemoteURI *)cur->data)->uri);
g_free(cur->data);
}
}
g_slist_free(uri_list);
}
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