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
  34 static void source_window_size_alloc_cb (GtkWidget      *widget,
  35                                          GtkAllocation  *allocation);
  36 static gint source_window_delete_cb     (GtkWidget      *widget,
  37                                          GdkEventAny    *event,
  38                                          SourceWindow   *sourcewin);
  39 static gboolean key_pressed             (GtkWidget      *widget,
  40                                          GdkEventKey    *event,
  41                                          SourceWindow   *sourcewin);
  42 static void source_window_append        (SourceWindow   *sourcewin,
  43                                          const gchar    *str);
  44 static void source_window_destroy       (SourceWindow   *sourcewin);
  45
  46 static void source_window_init()
  47 {
  48 }
  49
  50 SourceWindow *source_window_create(void)
  51 {
  52         SourceWindow *sourcewin;
  53         GtkWidget *window;
  54         GtkWidget *scrolledwin;
  55         GtkWidget *text;
  56         static PangoFontDescription *font_desc = NULL;
  57
  58         static GdkGeometry geometry;
  59
  60         debug_print("Creating source window...\n");
  61         sourcewin = g_new0(SourceWindow, 1);
  62
  63         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "sourcewindow");
  64         gtk_window_set_title(GTK_WINDOW(window), _("Source of the message"));
  65         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
  66         gtk_widget_set_size_request(window, prefs_common.sourcewin_width,
  67                                     prefs_common.sourcewin_height);
  68
  69         if (!geometry.min_height) {
  70                 geometry.min_width = 400;
  71                 geometry.min_height = 320;
  72         }
  73         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
  74                                       GDK_HINT_MIN_SIZE);
  75
  76         g_signal_connect(G_OBJECT(window), "size_allocate",
  77                          G_CALLBACK(source_window_size_alloc_cb),
  78                          sourcewin);
  79         g_signal_connect(G_OBJECT(window), "delete_event",
  80                          G_CALLBACK(source_window_delete_cb), sourcewin);
  81         g_signal_connect(G_OBJECT(window), "key_press_event",
  82                          G_CALLBACK(key_pressed), sourcewin);
  83         gtk_widget_realize(window);
  84
  85         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  86         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  87                                        GTK_POLICY_AUTOMATIC,
  88                                        GTK_POLICY_AUTOMATIC);
  89         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
  90                                             GTK_SHADOW_IN);
  91         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  92         gtk_widget_show(scrolledwin);
  93
  94         text = gtk_text_view_new();
  95         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
  96         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
  97         if (!font_desc && prefs_common.textfont)
  98                 font_desc = pango_font_description_from_string
  99                                         (prefs_common.textfont);
 100         if (font_desc)
 101                 gtk_widget_modify_font(text, font_desc);
 102         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 103         gtk_widget_show(text);
 104
 105         sourcewin->window = window;
 106         sourcewin->scrolledwin = scrolledwin;
 107         sourcewin->text = text;
 108
 109         source_window_init();
 110
 111         return sourcewin;
 112 }
 113
 114 void source_window_show(SourceWindow *sourcewin)
 115 {
 116         gtk_widget_show_all(sourcewin->window);
 117 }
 118
 119 static void source_window_destroy(SourceWindow *sourcewin)
 120 {
 121         if (sourcewin->updating) {
 122                 debug_print("deferring destroy\n");
 123                 sourcewin->deferred_destroy = TRUE;
 124                 return;
 125         }
 126         gtk_widget_destroy(sourcewin->window);
 127         g_free(sourcewin);
 128 }
 129
 130 void source_window_show_msg(SourceWindow *sourcewin, MsgInfo *msginfo)
 131 {
 132         gchar *file;
 133         gchar *title;
 134         FILE *fp;
 135         gchar buf[BUFFSIZE];
 136
 137         cm_return_if_fail(msginfo != NULL);
 138
 139         sourcewin->updating = TRUE;
 140         file = procmsg_get_message_file(msginfo);
 141         sourcewin->updating = FALSE;
 142
 143         if (sourcewin->deferred_destroy) {
 144                 g_free(file);
 145                 source_window_destroy(sourcewin);
 146                 return;
 147         }
 148
 149         cm_return_if_fail(file != NULL);
 150
 151         if ((fp = g_fopen(file, "rb")) == NULL) {
 152                 FILE_OP_ERROR(file, "fopen");
 153                 g_free(file);
 154                 return;
 155         }
 156
 157         debug_print("Displaying the source of %s ...\n", file);
 158
 159         title = g_strdup_printf(_("%s - Source"), file);
 160         gtk_window_set_title(GTK_WINDOW(sourcewin->window), title);
 161         g_free(title);
 162         g_free(file);
 163
 164         while (fgets(buf, sizeof(buf), fp) != NULL)
 165                 source_window_append(sourcewin, buf);
 166
 167         fclose(fp);
 168 }
 169
 170 static void source_window_append(SourceWindow *sourcewin, const gchar *str)
 171 {
 172         GtkTextView *text = GTK_TEXT_VIEW(sourcewin->text);
 173         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 174         GtkTextIter iter;
 175         gchar *out;
 176         gint len;
 177
 178         len = strlen(str) + 1;
 179         Xalloca(out, len, return);
 180         conv_utf8todisp(out, len, str);
 181
 182         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 183         gtk_text_buffer_insert(buffer, &iter, out, -1);
 184 }
 185
 186 static void source_window_size_alloc_cb(GtkWidget *widget,
 187                                         GtkAllocation *allocation)
 188 {
 189         cm_return_if_fail(allocation != NULL);
 190
 191         prefs_common.sourcewin_width  = allocation->width;
 192         prefs_common.sourcewin_height = allocation->height;
 193 }
 194
 195 static gint source_window_delete_cb(GtkWidget *widget, GdkEventAny *event,
 196                                     SourceWindow *sourcewin)
 197 {
 198         source_window_destroy(sourcewin);
 199         return TRUE;
 200 }
 201
 202 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
 203                             SourceWindow *sourcewin)
 204 {
 205
 206         if (!event || !sourcewin) return FALSE;
 207
 208         switch (event->keyval) {
 209         case GDK_KEY_A:
 210         case GDK_KEY_a:
 211                 if ((event->state & GDK_CONTROL_MASK) != 0)
 212                         gtk_editable_select_region(GTK_EDITABLE(sourcewin->text), 0, -1);
 213                 break;
 214         case GDK_KEY_W:
 215         case GDK_KEY_w:
 216                 if ((event->state & GDK_CONTROL_MASK) != 0)
 217                         gtk_widget_destroy(sourcewin->window);
 218                 break;
 219         case GDK_KEY_Escape:
 220                 source_window_destroy(sourcewin);
 221                 return TRUE;
 222                 break;
 223         }
 224
 225         return FALSE;
 226 }