1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2013 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 #ifdef HAVE_CONFIG_H
21 #  include "config.h"
22 #include "claws-features.h"
23 #endif
24 
25 #include "defs.h"
26 
27 #include <glib.h>
28 #include <glib/gi18n.h>
29 #include <gdk/gdkkeysyms.h>
30 #include <gtk/gtk.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 
35 #include "main.h"
36 #include "message_search.h"
37 #include "messageview.h"
38 #include "compose.h"
39 #include "utils.h"
40 #include "gtkutils.h"
41 #include "combobox.h"
42 #include "manage_window.h"
43 #include "alertpanel.h"
44 #include "manual.h"
45 #include "prefs_common.h"
46 
47 static struct MessageSearchWindow {
48 	GtkWidget *window;
49 	GtkWidget *body_entry;
50 	GtkWidget *case_checkbtn;
51 	GtkWidget *help_btn;
52 	GtkWidget *prev_btn;
53 	GtkWidget *next_btn;
54 	GtkWidget *close_btn;
55 	GtkWidget *stop_btn;
56 
57 	SearchInterface *interface;
58 	void *interface_obj;
59 
60 	gboolean is_searching;
61 	gboolean body_entry_has_focus;
62 } search_window;
63 
64 static SearchInterface compose_interface = {
65 	.search_string_backward = (SearchStringFunc) compose_search_string_backward,
66 	.set_position = (SetPositionFunc) compose_set_position,
67 	.search_string = (SearchStringFunc) compose_search_string,
68 };
69 
70 static SearchInterface messageview_interface = {
71 	.set_position = (SetPositionFunc) messageview_set_position,
72 	.search_string = (SearchStringFunc) messageview_search_string,
73 	.search_string_backward = (SearchStringFunc) messageview_search_string_backward,
74 };
75 
76 static void message_search_create	(void);
77 static void message_search_execute	(gboolean	 backward);
78 
79 static void message_search_prev_clicked	(GtkButton	*button,
80 					 gpointer	 data);
81 static void message_search_next_clicked	(GtkButton	*button,
82 					 gpointer	 data);
83 static void message_search_stop_clicked	(GtkButton	*button,
84 					 gpointer	 data);
85 static void body_changed		(void);
86 static gboolean body_entry_focus_evt_in(GtkWidget *widget, GdkEventFocus *event,
87 			      	  gpointer data);
88 static gboolean body_entry_focus_evt_out(GtkWidget *widget, GdkEventFocus *event,
89 			      	  gpointer data);
90 static gboolean key_pressed		(GtkWidget	*widget,
91 					 GdkEventKey	*event,
92 					 gpointer	 data);
93 
94 
95 #define GTK_BUTTON_SET_SENSITIVE(widget,sensitive) {					\
96 	gtk_widget_set_sensitive(widget, sensitive);					\
97 }
98 
message_show_stop_button(void)99 static void message_show_stop_button(void)
100 {
101 	gtk_widget_hide(search_window.close_btn);
102 	gtk_widget_show(search_window.stop_btn);
103 	GTK_BUTTON_SET_SENSITIVE(search_window.prev_btn, FALSE)
104 	GTK_BUTTON_SET_SENSITIVE(search_window.next_btn, FALSE)
105 }
106 
message_hide_stop_button(void)107 static void message_hide_stop_button(void)
108 {
109 	gtk_widget_hide(search_window.stop_btn);
110 	gtk_widget_show(search_window.close_btn);
111 	gtk_widget_set_sensitive(search_window.prev_btn, TRUE);
112 	gtk_widget_set_sensitive(search_window.next_btn, TRUE);
113 }
114 
message_search(MessageView * messageview)115 void message_search(MessageView *messageview)
116 {
117 	message_search_other(&messageview_interface, (void *)messageview);
118 }
119 
message_search_compose(Compose * compose)120 void message_search_compose(Compose *compose)
121 {
122 	message_search_other(&compose_interface, (void *)compose);
123 }
124 
message_search_close(void * obj)125 void message_search_close (void *obj)
126 {
127 	if(!search_window.window) {
128 		return;
129 	}
130 	if (search_window.interface_obj == obj) {
131 		gtk_widget_hide(search_window.window);
132 		search_window.interface_obj = NULL;
133 	}
134 }
135 
message_search_other(SearchInterface * interface,void * obj)136 void message_search_other(SearchInterface *interface, void *obj)
137 {
138 	if (!search_window.window)
139 		message_search_create();
140 	else
141 		gtk_widget_hide(search_window.window);
142 
143 	search_window.interface_obj = obj;
144 	search_window.interface = interface;
145 
146 	gtk_widget_grab_focus(search_window.next_btn);
147 	gtk_widget_grab_focus(search_window.body_entry);
148 	gtk_widget_show(search_window.window);
149 }
150 
151 
message_search_create(void)152 static void message_search_create(void)
153 {
154 	GtkWidget *window;
155 
156 	GtkWidget *vbox1;
157 	GtkWidget *hbox1;
158 	GtkWidget *body_label;
159 	GtkWidget *body_entry;
160 
161 	GtkWidget *checkbtn_hbox;
162 	GtkWidget *case_checkbtn;
163 
164 	GtkWidget *confirm_area;
165 	GtkWidget *help_btn;
166 	GtkWidget *prev_btn;
167 	GtkWidget *next_btn;
168 	GtkWidget *close_btn;
169 	GtkWidget *stop_btn;
170 
171 	window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "message_search");
172 	gtk_window_set_title (GTK_WINDOW (window),
173 			      _("Find in current message"));
174 	gtk_widget_set_size_request (window, 450, -1);
175 	gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
176 	gtk_window_set_type_hint(GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DIALOG);
177 	gtk_container_set_border_width (GTK_CONTAINER (window), 8);
178 	g_signal_connect(G_OBJECT(window), "delete_event",
179 			 G_CALLBACK(gtk_widget_hide_on_delete), NULL);
180 	g_signal_connect(G_OBJECT(window), "key_press_event",
181 			 G_CALLBACK(key_pressed), NULL);
182 	MANAGE_WINDOW_SIGNALS_CONNECT(window);
183 
184 	vbox1 = gtk_vbox_new (FALSE, 0);
185 	gtk_widget_show (vbox1);
186 	gtk_container_add (GTK_CONTAINER (window), vbox1);
187 
188 	hbox1 = gtk_hbox_new (FALSE, 8);
189 	gtk_widget_show (hbox1);
190 	gtk_box_pack_start (GTK_BOX (vbox1), hbox1, TRUE, TRUE, 0);
191 
192 	body_label = gtk_label_new (_("Find text:"));
193 	gtk_widget_show (body_label);
194 	gtk_box_pack_start (GTK_BOX (hbox1), body_label, FALSE, FALSE, 0);
195 
196 	body_entry = gtk_combo_box_text_new_with_entry ();
197 	gtk_combo_box_set_active(GTK_COMBO_BOX(body_entry), -1);
198 	if (prefs_common.message_search_history)
199 		combobox_set_popdown_strings(GTK_COMBO_BOX_TEXT(body_entry),
200 				prefs_common.message_search_history);
201 	gtk_widget_show (body_entry);
202 	gtk_box_pack_start (GTK_BOX (hbox1), body_entry, TRUE, TRUE, 0);
203 	g_signal_connect(G_OBJECT(body_entry), "changed",
204 			 G_CALLBACK(body_changed), NULL);
205 	g_signal_connect(G_OBJECT(gtk_bin_get_child(GTK_BIN((body_entry)))),
206 			 "focus_in_event", G_CALLBACK(body_entry_focus_evt_in), NULL);
207 	g_signal_connect(G_OBJECT(gtk_bin_get_child(GTK_BIN((body_entry)))),
208 			 "focus_out_event", G_CALLBACK(body_entry_focus_evt_out), NULL);
209 
210 	checkbtn_hbox = gtk_hbox_new (FALSE, 8);
211 	gtk_widget_show (checkbtn_hbox);
212 	gtk_box_pack_start (GTK_BOX (vbox1), checkbtn_hbox, TRUE, TRUE, 0);
213 	gtk_container_set_border_width (GTK_CONTAINER (checkbtn_hbox), 8);
214 
215 	case_checkbtn = gtk_check_button_new_with_label (_("Case sensitive"));
216 	gtk_widget_show (case_checkbtn);
217 	gtk_box_pack_start (GTK_BOX (checkbtn_hbox), case_checkbtn,
218 			    FALSE, FALSE, 0);
219 
220 	confirm_area = gtk_hbutton_box_new();
221 	gtk_widget_show (confirm_area);
222 	gtk_button_box_set_layout(GTK_BUTTON_BOX(confirm_area),
223 				  GTK_BUTTONBOX_END);
224 	gtk_box_set_spacing(GTK_BOX(confirm_area), 5);
225 
226 	gtkut_stock_button_add_help(confirm_area, &help_btn);
227 
228 	prev_btn = gtk_button_new_from_stock(GTK_STOCK_GO_BACK);
229 	gtk_widget_set_can_default(prev_btn, TRUE);
230 	gtk_box_pack_start(GTK_BOX(confirm_area), prev_btn, TRUE, TRUE, 0);
231 	gtk_widget_show(prev_btn);
232 
233 	next_btn = gtk_button_new_from_stock(GTK_STOCK_GO_FORWARD);
234 	gtk_widget_set_can_default(next_btn, TRUE);
235 	gtk_box_pack_start(GTK_BOX(confirm_area), next_btn, TRUE, TRUE, 0);
236 	gtk_widget_show(next_btn);
237 
238 	close_btn = gtk_button_new_from_stock(GTK_STOCK_CLOSE);
239 	gtk_widget_set_can_default(close_btn, TRUE);
240 	gtk_box_pack_start(GTK_BOX(confirm_area), close_btn, TRUE, TRUE, 0);
241 	gtk_widget_show(close_btn);
242 
243 	/* stop button hidden */
244 	stop_btn = gtk_button_new_from_stock(GTK_STOCK_STOP);
245 	gtk_widget_set_can_default(stop_btn, TRUE);
246 	gtk_box_pack_start(GTK_BOX(confirm_area), stop_btn, TRUE, TRUE, 0);
247 
248 	gtk_widget_show (confirm_area);
249 	gtk_box_pack_start (GTK_BOX (vbox1), confirm_area, FALSE, FALSE, 0);
250 	gtk_widget_grab_default(next_btn);
251 
252 	g_signal_connect(G_OBJECT(help_btn), "clicked",
253 			 G_CALLBACK(manual_open_with_anchor_cb),
254 			 MANUAL_ANCHOR_SEARCHING);
255 	g_signal_connect(G_OBJECT(prev_btn), "clicked",
256 			 G_CALLBACK(message_search_prev_clicked), NULL);
257 	g_signal_connect(G_OBJECT(next_btn), "clicked",
258 			 G_CALLBACK(message_search_next_clicked), NULL);
259 	g_signal_connect_closure
260 		(G_OBJECT(close_btn), "clicked",
261 		 g_cclosure_new_swap(G_CALLBACK(gtk_widget_hide),
262 				     window, NULL),
263 		 FALSE);
264 	g_signal_connect(G_OBJECT(stop_btn), "clicked",
265 			 G_CALLBACK(message_search_stop_clicked), NULL);
266 
267 	search_window.window = window;
268 	search_window.body_entry = body_entry;
269 	search_window.case_checkbtn = case_checkbtn;
270 	search_window.help_btn = help_btn;
271 	search_window.prev_btn = prev_btn;
272 	search_window.next_btn = next_btn;
273 	search_window.close_btn = close_btn;
274 	search_window.stop_btn = stop_btn;
275 }
276 
message_search_execute(gboolean backward)277 static void message_search_execute(gboolean backward)
278 {
279 	void *interface_obj = search_window.interface_obj;
280 	gboolean case_sens;
281 	gboolean all_searched = FALSE;
282 	gchar *body_str;
283 
284 	body_str = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(search_window.body_entry));
285 	if (!body_str)
286 		body_str = gtk_editable_get_chars(
287 				GTK_EDITABLE(gtk_bin_get_child(GTK_BIN(search_window.body_entry))),0,-1);
288 	if (!body_str || *body_str == '\0') return;
289 
290 	/* add to history */
291 	combobox_unset_popdown_strings(GTK_COMBO_BOX_TEXT(search_window.body_entry));
292 	prefs_common.message_search_history = add_history(
293 			prefs_common.message_search_history, body_str);
294 	combobox_set_popdown_strings(GTK_COMBO_BOX_TEXT(search_window.body_entry),
295 			prefs_common.message_search_history);
296 
297 	case_sens = gtk_toggle_button_get_active
298 		(GTK_TOGGLE_BUTTON(search_window.case_checkbtn));
299 
300 	search_window.is_searching = TRUE;
301 	message_show_stop_button();
302 
303 	for (; search_window.is_searching;) {
304 		gchar *str;
305 		AlertValue val;
306 
307 		if (backward) {
308 			if (search_window.interface->search_string_backward
309 				(interface_obj, body_str, case_sens) == TRUE)
310 				break;
311 		} else {
312 			if (search_window.interface->search_string
313 				(interface_obj, body_str, case_sens) == TRUE)
314 				break;
315 		}
316 
317 		if (all_searched) {
318 			alertpanel_full(_("Search failed"),
319 					_("Search string not found."),
320 				       	 GTK_STOCK_CLOSE, NULL, NULL, FALSE,
321 				       	 ALERTFOCUS_FIRST, NULL, ALERT_WARNING);
322 			break;
323 		}
324 
325 		all_searched = TRUE;
326 
327 		if (backward)
328 			str = _("Beginning of message reached; "
329 				"continue from end?");
330 		else
331 			str = _("End of message reached; "
332 				"continue from beginning?");
333 
334 		val = alertpanel(_("Search finished"), str,
335 				 GTK_STOCK_NO, GTK_STOCK_YES, NULL, ALERTFOCUS_SECOND);
336 		if (G_ALERTALTERNATE == val) {
337 			manage_window_focus_in(search_window.window,
338 					       NULL, NULL);
339 			search_window.interface->set_position(interface_obj,
340 							backward ? -1 : 0);
341 		} else
342 			break;
343 	}
344 
345 	search_window.is_searching = FALSE;
346 	message_hide_stop_button();
347 	g_free(body_str);
348 }
349 
body_changed(void)350 static void body_changed(void)
351 {
352 	if (!search_window.body_entry_has_focus)
353 		gtk_widget_grab_focus(search_window.body_entry);
354 }
355 
body_entry_focus_evt_in(GtkWidget * widget,GdkEventFocus * event,gpointer data)356 static gboolean body_entry_focus_evt_in(GtkWidget *widget, GdkEventFocus *event,
357 			      	  gpointer data)
358 {
359 	search_window.body_entry_has_focus = TRUE;
360 	return FALSE;
361 }
362 
body_entry_focus_evt_out(GtkWidget * widget,GdkEventFocus * event,gpointer data)363 static gboolean body_entry_focus_evt_out(GtkWidget *widget, GdkEventFocus *event,
364 			      	  gpointer data)
365 {
366 	search_window.body_entry_has_focus = FALSE;
367 	return FALSE;
368 }
369 
message_search_prev_clicked(GtkButton * button,gpointer data)370 static void message_search_prev_clicked(GtkButton *button, gpointer data)
371 {
372 	message_search_execute(TRUE);
373 }
374 
message_search_next_clicked(GtkButton * button,gpointer data)375 static void message_search_next_clicked(GtkButton *button, gpointer data)
376 {
377 	message_search_execute(FALSE);
378 }
379 
key_pressed(GtkWidget * widget,GdkEventKey * event,gpointer data)380 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event,
381 			    gpointer data)
382 {
383 	if (event && (event->keyval == GDK_KEY_Escape)) {
384 		gtk_widget_hide(search_window.window);
385 	}
386 
387 	if (event && (event->keyval == GDK_KEY_Return || event->keyval == GDK_KEY_KP_Enter)) {
388 		message_search_execute(FALSE);
389 	}
390 
391 	if (event && (event->keyval == GDK_KEY_Down || event->keyval == GDK_KEY_Up)) {
392 		if (search_window.body_entry_has_focus) {
393 			combobox_set_value_from_arrow_key(
394 					GTK_COMBO_BOX(search_window.body_entry),
395 					event->keyval);
396 			return TRUE;
397 		}
398 	}
399 
400 	return FALSE;
401 }
402 
message_search_stop_clicked(GtkButton * button,gpointer data)403 static void message_search_stop_clicked(GtkButton *button, gpointer data)
404 {
405 	search_window.is_searching = FALSE;
406 }
407