src/sourcewindow.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <glib/gi18n.h>
  24 #include <gdk/gdkkeysyms.h>
  25 #include <gtk/gtk.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28
  29 #include "sourcewindow.h"
  30 #include "utils.h"
  31 #include "gtkutils.h"
  32 #include "prefs_common.h"
  33 #include "file-utils.h"
  34
  35 static void source_window_size_alloc_cb (GtkWidget      *widget,
  36                                          GtkAllocation  *allocation);
  37 static gint source_window_delete_cb     (GtkWidget      *widget,
  38                                          GdkEventAny    *event,
  39                                          SourceWindow   *sourcewin);
  40 static gboolean key_pressed             (GtkWidget      *widget,
  41                                          GdkEventKey    *event,
  42                                          SourceWindow   *sourcewin);
  43 static void source_window_append        (SourceWindow   *sourcewin,
  44                                          const gchar    *str);
  45 static void source_window_destroy       (SourceWindow   *sourcewin);
  46
  47 static void source_window_init()
  48 {
  49 }
  50
  51 SourceWindow *source_window_create(void)
  52 {
  53         SourceWindow *sourcewin;
  54         GtkWidget *window;
  55         GtkWidget *scrolledwin;
  56         GtkWidget *text;
  57         static PangoFontDescription *font_desc = NULL;
  58
  59         static GdkGeometry geometry;
  60
  61         debug_print("Creating source window...\n");
  62         sourcewin = g_new0(SourceWindow, 1);
  63
  64         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "sourcewindow");
  65         gtk_window_set_title(GTK_WINDOW(window), _("Source of the message"));
  66         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
  67         gtk_window_set_type_hint(GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DIALOG);
  68         gtk_widget_set_size_request(window, prefs_common.sourcewin_width,
  69                                     prefs_common.sourcewin_height);
  70
  71         if (!geometry.min_height) {
  72                 geometry.min_width = 400;
  73                 geometry.min_height = 320;
  74         }
  75         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
  76                                       GDK_HINT_MIN_SIZE);
  77
  78         g_signal_connect(G_OBJECT(window), "size_allocate",
  79                          G_CALLBACK(source_window_size_alloc_cb),
  80                          sourcewin);
  81         g_signal_connect(G_OBJECT(window), "delete_event",
  82                          G_CALLBACK(source_window_delete_cb), sourcewin);
  83         g_signal_connect(G_OBJECT(window), "key_press_event",
  84                          G_CALLBACK(key_pressed), sourcewin);
  85         gtk_widget_realize(window);
  86
  87         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  88         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  89                                        GTK_POLICY_AUTOMATIC,
  90                                        GTK_POLICY_AUTOMATIC);
  91         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
  92                                             GTK_SHADOW_IN);
  93         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  94         gtk_widget_show(scrolledwin);
  95
  96         text = gtk_text_view_new();
  97         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
  98         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
  99         if (!font_desc && prefs_common.textfont)
 100                 font_desc = pango_font_description_from_string
 101                                         (prefs_common.textfont);
 102         if (font_desc)
 103                 gtk_widget_modify_font(text, font_desc);
 104         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 105         gtk_widget_show(text);
 106
 107         sourcewin->window = window;
 108         sourcewin->scrolledwin = scrolledwin;
 109         sourcewin->text = text;
 110
 111         source_window_init();
 112
 113         return sourcewin;
 114 }
 115
 116 void source_window_show(SourceWindow *sourcewin)
 117 {
 118         gtk_widget_show_all(sourcewin->window);
 119 }
 120
 121 static void source_window_destroy(SourceWindow *sourcewin)
 122 {
 123         if (sourcewin->updating) {
 124                 debug_print("deferring destroy\n");
 125                 sourcewin->deferred_destroy = TRUE;
 126                 return;
 127         }
 128         gtk_widget_destroy(sourcewin->window);
 129         g_free(sourcewin);
 130 }
 131
 132 void source_window_show_msg(SourceWindow *sourcewin, MsgInfo *msginfo)
 133 {
 134         gchar *file;
 135         gchar *title;
 136         FILE *fp;
 137         gchar buf[BUFFSIZE];
 138
 139         cm_return_if_fail(msginfo != NULL);
 140
 141         sourcewin->updating = TRUE;
 142         file = procmsg_get_message_file(msginfo);
 143         sourcewin->updating = FALSE;
 144
 145         if (sourcewin->deferred_destroy) {
 146                 g_free(file);
 147                 source_window_destroy(sourcewin);
 148                 return;
 149         }
 150
 151         cm_return_if_fail(file != NULL);
 152
 153         if ((fp = claws_fopen(file, "rb")) == NULL) {
 154                 FILE_OP_ERROR(file, "claws_fopen");
 155                 g_free(file);
 156                 return;
 157         }
 158
 159         debug_print("Displaying the source of %s ...\n", file);
 160
 161         title = g_strdup_printf(_("%s - Source"), file);
 162         gtk_window_set_title(GTK_WINDOW(sourcewin->window), title);
 163         g_free(title);
 164         g_free(file);
 165
 166         while (claws_fgets(buf, sizeof(buf), fp) != NULL)
 167                 source_window_append(sourcewin, buf);
 168
 169         claws_fclose(fp);
 170 }
 171
 172 static void source_window_append(SourceWindow *sourcewin, const gchar *str)
 173 {
 174         GtkTextView *text = GTK_TEXT_VIEW(sourcewin->text);
 175         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 176         GtkTextIter iter;
 177         gchar *out;
 178         gint len;
 179
 180         len = strlen(str) + 1;
 181         Xalloca(out, len, return);
 182         conv_utf8todisp(out, len, str);
 183
 184         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 185         gtk_text_buffer_insert(buffer, &iter, out, -1);
 186 }
 187
 188 static void source_window_size_alloc_cb(GtkWidget *widget,
 189                                         GtkAllocation *allocation)
 190 {
 191         cm_return_if_fail(allocation != NULL);
 192
 193         prefs_common.sourcewin_width  = allocation->width;
 194         prefs_common.sourcewin_height = allocation->height;
 195 }
 196
 197 static gint source_window_delete_cb(GtkWidget *widget, GdkEventAny *event,
 198                                     SourceWindow *sourcewin)
 199 {
 200         source_window_destroy(sourcewin);
 201         return TRUE;
 202 }
 203
 204 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
 205                             SourceWindow *sourcewin)
 206 {
 207         if (!event || !sourcewin) return FALSE;
 208
 209         switch (event->keyval) {
 210         case GDK_KEY_W:
 211         case GDK_KEY_w:
 212                 if ((event->state & GDK_CONTROL_MASK) != 0)
 213                         gtk_widget_destroy(sourcewin->window);
 214                 break;
 215         case GDK_KEY_Escape:
 216                 source_window_destroy(sourcewin);
 217                 return TRUE;
 218                 break;
 219         }
 220
 221         return FALSE;
 222 }