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 
source_window_init()47 static void source_window_init()
48 {
49 }
50 
source_window_create(void)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 
source_window_show(SourceWindow * sourcewin)116 void source_window_show(SourceWindow *sourcewin)
117 {
118 	gtk_widget_show_all(sourcewin->window);
119 }
120 
source_window_destroy(SourceWindow * sourcewin)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 
source_window_show_msg(SourceWindow * sourcewin,MsgInfo * msginfo)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 
source_window_append(SourceWindow * sourcewin,const gchar * str)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 
source_window_size_alloc_cb(GtkWidget * widget,GtkAllocation * allocation)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 
source_window_delete_cb(GtkWidget * widget,GdkEventAny * event,SourceWindow * sourcewin)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 
key_pressed(GtkWidget * widget,GdkEventKey * event,SourceWindow * sourcewin)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 }
223