src/sourcewindow.c

   1 /*
   2  * Claws Mail -- a GTK based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2019 the Claws Mail team and Hiroyuki Yamamoto
   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 "config.h"
  21 #include "defs.h"
  22
  23 #include <glib.h>
  24 #include <glib/gi18n.h>
  25 #include <gdk/gdkkeysyms.h>
  26 #include <gtk/gtk.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29
  30 #include "sourcewindow.h"
  31 #include "utils.h"
  32 #include "gtkutils.h"
  33 #include "prefs_common.h"
  34 #include "file-utils.h"
  35
  36 static void source_window_size_alloc_cb (GtkWidget      *widget,
  37                                          GtkAllocation  *allocation);
  38 static gint source_window_delete_cb     (GtkWidget      *widget,
  39                                          GdkEventAny    *event,
  40                                          SourceWindow   *sourcewin);
  41 static gboolean key_pressed             (GtkWidget      *widget,
  42                                          GdkEventKey    *event,
  43                                          SourceWindow   *sourcewin);
  44 static void source_window_append        (SourceWindow   *sourcewin,
  45                                          const gchar    *str);
  46 static void source_window_destroy       (SourceWindow   *sourcewin);
  47
  48 static void source_window_init()
  49 {
  50 }
  51
  52 SourceWindow *source_window_create(void)
  53 {
  54         SourceWindow *sourcewin;
  55         GtkWidget *window;
  56         GtkWidget *scrolledwin;
  57         GtkWidget *text;
  58         static PangoFontDescription *font_desc = NULL;
  59
  60         static GdkGeometry geometry;
  61
  62         debug_print("Creating source window...\n");
  63         sourcewin = g_new0(SourceWindow, 1);
  64
  65         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "sourcewindow");
  66         gtk_window_set_title(GTK_WINDOW(window), _("Source of the message"));
  67         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
  68         gtk_window_set_type_hint(GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DIALOG);
  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         gtk_window_set_default_size(GTK_WINDOW(window), prefs_common.sourcewin_width,
  77                                     prefs_common.sourcewin_height);
  78
  79         g_signal_connect(G_OBJECT(window), "size_allocate",
  80                          G_CALLBACK(source_window_size_alloc_cb),
  81                          sourcewin);
  82         g_signal_connect(G_OBJECT(window), "delete_event",
  83                          G_CALLBACK(source_window_delete_cb), sourcewin);
  84         g_signal_connect(G_OBJECT(window), "key_press_event",
  85                          G_CALLBACK(key_pressed), sourcewin);
  86         gtk_widget_realize(window);
  87
  88         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
  89         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
  90                                        GTK_POLICY_AUTOMATIC,
  91                                        GTK_POLICY_AUTOMATIC);
  92         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
  93                                             GTK_SHADOW_IN);
  94         gtk_container_add(GTK_CONTAINER(window), scrolledwin);
  95         gtk_widget_show(scrolledwin);
  96
  97         text = gtk_text_view_new();
  98         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(text), GTK_WRAP_WORD_CHAR);
  99         gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
 100         if (!font_desc && prefs_common.textfont)
 101                 font_desc = pango_font_description_from_string
 102                                         (prefs_common.textfont);
 103         if (font_desc)
 104                 gtk_widget_override_font(text, font_desc);
 105         gtk_container_add(GTK_CONTAINER(scrolledwin), text);
 106         gtk_widget_show(text);
 107
 108         sourcewin->window = window;
 109         sourcewin->scrolledwin = scrolledwin;
 110         sourcewin->text = text;
 111
 112         source_window_init();
 113
 114         return sourcewin;
 115 }
 116
 117 void source_window_show(SourceWindow *sourcewin)
 118 {
 119         gtk_widget_show_all(sourcewin->window);
 120 }
 121
 122 static void source_window_destroy(SourceWindow *sourcewin)
 123 {
 124         if (sourcewin->updating) {
 125                 debug_print("deferring destroy\n");
 126                 sourcewin->deferred_destroy = TRUE;
 127                 return;
 128         }
 129         gtk_widget_destroy(sourcewin->window);
 130         g_free(sourcewin);
 131 }
 132
 133 void source_window_show_msg(SourceWindow *sourcewin, MsgInfo *msginfo)
 134 {
 135         gchar *file;
 136         gchar *title;
 137         FILE *fp;
 138         gchar buf[BUFFSIZE];
 139
 140         cm_return_if_fail(msginfo != NULL);
 141
 142         sourcewin->updating = TRUE;
 143         file = procmsg_get_message_file(msginfo);
 144         sourcewin->updating = FALSE;
 145
 146         if (sourcewin->deferred_destroy) {
 147                 g_free(file);
 148                 source_window_destroy(sourcewin);
 149                 return;
 150         }
 151
 152         cm_return_if_fail(file != NULL);
 153
 154         if ((fp = claws_fopen(file, "rb")) == NULL) {
 155                 FILE_OP_ERROR(file, "claws_fopen");
 156                 g_free(file);
 157                 return;
 158         }
 159
 160         debug_print("Displaying the source of %s ...\n", file);
 161
 162         title = g_strdup_printf(_("%s - Source"), file);
 163         gtk_window_set_title(GTK_WINDOW(sourcewin->window), title);
 164         g_free(title);
 165         g_free(file);
 166
 167         while (claws_fgets(buf, sizeof(buf), fp) != NULL)
 168                 source_window_append(sourcewin, buf);
 169
 170         claws_fclose(fp);
 171 }
 172
 173 static void source_window_append(SourceWindow *sourcewin, const gchar *str)
 174 {
 175         GtkTextView *text = GTK_TEXT_VIEW(sourcewin->text);
 176         GtkTextBuffer *buffer = gtk_text_view_get_buffer(text);
 177         GtkTextIter iter;
 178         gchar *out;
 179         gint len;
 180
 181         len = strlen(str) + 1;
 182         Xalloca(out, len, return);
 183         conv_utf8todisp(out, len, str);
 184
 185         gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
 186         gtk_text_buffer_insert(buffer, &iter, out, -1);
 187 }
 188
 189 static void source_window_size_alloc_cb(GtkWidget *widget,
 190                                         GtkAllocation *allocation)
 191 {
 192         cm_return_if_fail(allocation != NULL);
 193
 194         gtk_window_get_size(GTK_WINDOW(widget),
 195                 &prefs_common.sourcewin_width, &prefs_common.sourcewin_height);
 196 }
 197
 198 static gint source_window_delete_cb(GtkWidget *widget, GdkEventAny *event,
 199                                     SourceWindow *sourcewin)
 200 {
 201         source_window_destroy(sourcewin);
 202         return TRUE;
 203 }
 204
 205 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
 206                             SourceWindow *sourcewin)
 207 {
 208         if (!event || !sourcewin) return FALSE;
 209
 210         switch (event->keyval) {
 211         case GDK_KEY_W:
 212         case GDK_KEY_w:
 213                 if ((event->state & GDK_CONTROL_MASK) != 0)
 214                         gtk_widget_destroy(sourcewin->window);
 215                 break;
 216         case GDK_KEY_Escape:
 217                 source_window_destroy(sourcewin);
 218                 return TRUE;
 219                 break;
 220         }
 221
 222         return FALSE;
 223 }