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 "claws_io.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_widget_set_size_request(window, prefs_common.sourcewin_width,
  68                                     prefs_common.sourcewin_height);
  69
  70         if (!geometry.min_height) {
  71                 geometry.min_width = 400;
  72                 geometry.min_height = 320;
  73         }
  74         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
  75                                       GDK_HINT_MIN_SIZE);
  76
  77         g_signal_connect(G_OBJECT(window), "size_allocate",
  78                          G_CALLBACK(source_window_size_alloc_cb),
  79                          sourcewin);
  80         g_signal_connect(G_OBJECT(window), "delete_event",
  81                          G_CALLBACK(source_window_delete_cb), sourcewin);
  82         g_signal_connect(G_OBJECT(window), "key_press_event",
  83                          G_CALLBACK(key_pressed), sourcewin);
  84         gtk_widget_realize(window);
  85
  86         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  87         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  88                                        GTK_POLICY_AUTOMATIC,
  89                                        GTK_POLICY_AUTOMATIC);
  90         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
  91                                             GTK_SHADOW_IN);
  92         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  93         gtk_widget_show(scrolledwin);
  94
  95         text = gtk_text_view_new();
  96         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
  97         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
  98         if (!font_desc && prefs_common.textfont)
  99                 font_desc = pango_font_description_from_string
 100                                         (prefs_common.textfont);
 101         if (font_desc)
 102                 gtk_widget_modify_font(text, font_desc);
 103         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 104         gtk_widget_show(text);
 105
 106         sourcewin->window = window;
 107         sourcewin->scrolledwin = scrolledwin;
 108         sourcewin->text = text;
 109
 110         source_window_init();
 111
 112         return sourcewin;
 113 }
 114
 115 void source_window_show(SourceWindow *sourcewin)
 116 {
 117         gtk_widget_show_all(sourcewin->window);
 118 }
 119
 120 static void source_window_destroy(SourceWindow *sourcewin)
 121 {
 122         if (sourcewin->updating) {
 123                 debug_print("deferring destroy\n");
 124                 sourcewin->deferred_destroy = TRUE;
 125                 return;
 126         }
 127         gtk_widget_destroy(sourcewin->window);
 128         g_free(sourcewin);
 129 }
 130
 131 void source_window_show_msg(SourceWindow *sourcewin, MsgInfo *msginfo)
 132 {
 133         gchar *file;
 134         gchar *title;
 135         FILE *fp;
 136         gchar buf[BUFFSIZE];
 137
 138         cm_return_if_fail(msginfo != NULL);
 139
 140         sourcewin->updating = TRUE;
 141         file = procmsg_get_message_file(msginfo);
 142         sourcewin->updating = FALSE;
 143
 144         if (sourcewin->deferred_destroy) {
 145                 g_free(file);
 146                 source_window_destroy(sourcewin);
 147                 return;
 148         }
 149
 150         cm_return_if_fail(file != NULL);
 151
 152         if ((fp = claws_fopen(file, "rb")) == NULL) {
 153                 FILE_OP_ERROR(file, "claws_fopen");
 154                 g_free(file);
 155                 return;
 156         }
 157
 158         debug_print("Displaying the source of %s ...\n", file);
 159
 160         title = g_strdup_printf(_("%s - Source"), file);
 161         gtk_window_set_title(GTK_WINDOW(sourcewin->window), title);
 162         g_free(title);
 163         g_free(file);
 164
 165         while (claws_fgets(buf, sizeof(buf), fp) != NULL)
 166                 source_window_append(sourcewin, buf);
 167
 168         claws_fclose(fp);
 169 }
 170
 171 static void source_window_append(SourceWindow *sourcewin, const gchar *str)
 172 {
 173         GtkTextView *text = GTK_TEXT_VIEW(sourcewin->text);
 174         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 175         GtkTextIter iter;
 176         gchar *out;
 177         gint len;
 178
 179         len = strlen(str) + 1;
 180         Xalloca(out, len, return);
 181         conv_utf8todisp(out, len, str);
 182
 183         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 184         gtk_text_buffer_insert(buffer, &iter, out, -1);
 185 }
 186
 187 static void source_window_size_alloc_cb(GtkWidget *widget,
 188                                         GtkAllocation *allocation)
 189 {
 190         cm_return_if_fail(allocation != NULL);
 191
 192         prefs_common.sourcewin_width  = allocation->width;
 193         prefs_common.sourcewin_height = allocation->height;
 194 }
 195
 196 static gint source_window_delete_cb(GtkWidget *widget, GdkEventAny *event,
 197                                     SourceWindow *sourcewin)
 198 {
 199         source_window_destroy(sourcewin);
 200         return TRUE;
 201 }
 202
 203 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
 204                             SourceWindow *sourcewin)
 205 {
 206
 207         if (!event || !sourcewin) return FALSE;
 208
 209         switch (event->keyval) {
 210         case GDK_KEY_A:
 211         case GDK_KEY_a:
 212                 if ((event->state & GDK_CONTROL_MASK) != 0)
 213                         gtk_editable_select_region(GTK_EDITABLE(sourcewin->text), 0, -1);
 214                 break;
 215         case GDK_KEY_W:
 216         case GDK_KEY_w:
 217                 if ((event->state & GDK_CONTROL_MASK) != 0)
 218                         gtk_widget_destroy(sourcewin->window);
 219                 break;
 220         case GDK_KEY_Escape:
 221                 source_window_destroy(sourcewin);
 222                 return TRUE;
 223                 break;
 224         }
 225
 226         return FALSE;
 227 }