4e9a89fe2f1e8e38d43a038018fbfc41fbb95de6
[claws.git] / 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_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         if (!event || !sourcewin) return FALSE;
207
208         switch (event->keyval) {
209         case GDK_KEY_W:
210         case GDK_KEY_w:
211                 if ((event->state & GDK_CONTROL_MASK) != 0)
212                         gtk_widget_destroy(sourcewin->window);
213                 break;
214         case GDK_KEY_Escape:
215                 source_window_destroy(sourcewin);
216                 return TRUE;
217                 break;
218         }
219
220         return FALSE;
221 }