2005-05-31 [paul] 1.9.11cvs26
[claws.git] / src / gtk / pluginwindow.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2002 Hiroyuki Yamamoto and the Sylpheed-Claws 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 2 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, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18  */
19
20 #ifdef HAVE_CONFIG_H
21 #  include "config.h"
22 #endif
23
24 #include <glib.h>
25 #include <glib/gi18n.h>
26 #include <string.h>
27
28 #include <gtk/gtk.h>
29 #include <gdk/gdkkeysyms.h>
30
31 #include "plugin.h"
32
33 #include "filesel.h"
34 #include "alertpanel.h"
35 #include "prefs_common.h"
36 #include "../inc.h"
37
38 enum {
39         PLUGINWINDOW_NAME,              /*<! plugin name */
40         PLUGINWINDOW_DATA,              /*<! Plugin pointer */
41         N_PLUGINWINDOW_COLUMNS
42 };
43
44 typedef struct _PluginWindow
45 {
46         GtkWidget *window;
47         GtkWidget *plugin_list_view;
48         GtkWidget *plugin_desc;
49         GtkWidget *unload_btn;
50
51         Plugin *selected_plugin;
52 } PluginWindow;
53
54 static GtkListStore* pluginwindow_create_data_store     (void);
55 static GtkWidget *pluginwindow_list_view_create         (PluginWindow *pluginwindow);
56 static void pluginwindow_create_list_view_columns       (GtkWidget *list_view);
57 static gboolean pluginwindow_selected                   (GtkTreeSelection *selector,
58                                                          GtkTreeModel *model, 
59                                                          GtkTreePath *path,
60                                                          gboolean currently_selected,
61                                                          gpointer data);
62
63 static void close_cb(GtkButton *button, PluginWindow *pluginwindow)
64 {
65         gtk_widget_destroy(pluginwindow->window);
66         g_free(pluginwindow);
67         plugin_save_list();
68         inc_unlock();
69 }
70
71 static void set_plugin_list(PluginWindow *pluginwindow)
72 {
73         GSList *plugins, *cur;
74         const gchar *text;
75         gint row;
76         GtkListStore *store;
77         GtkTreeIter iter;
78         GtkTextBuffer *textbuf;
79         GtkTextIter start_iter, end_iter;
80         GtkTreeSelection *selection;
81
82         plugins = plugin_get_list();
83
84         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW
85                                 (pluginwindow->plugin_list_view)));
86         gtk_list_store_clear(store);
87         
88         textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(pluginwindow->plugin_desc));
89         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(pluginwindow->plugin_desc), FALSE);
90         gtk_text_view_set_editable(GTK_TEXT_VIEW(pluginwindow->plugin_desc), FALSE);
91         gtk_text_buffer_get_start_iter(textbuf, &start_iter);
92         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
93         gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
94         gtk_widget_set_sensitive(pluginwindow->unload_btn, FALSE);
95
96         for(cur = plugins; cur != NULL; cur = g_slist_next(cur)) {
97                 Plugin *plugin = (Plugin *) cur->data;
98
99                 gtk_list_store_append(store, &iter);
100                 text = plugin_get_name(plugin); 
101                 gtk_list_store_set(store, &iter,
102                                    PLUGINWINDOW_NAME, text,
103                                    PLUGINWINDOW_DATA, plugin,
104                                    -1);
105         }
106
107         if (pluginwindow->selected_plugin == NULL) { 
108                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW
109                                 (pluginwindow->plugin_list_view));
110                 gtk_tree_selection_unselect_all(selection);                             
111         }               
112         g_slist_free(plugins);
113 }
114
115 static void select_row_cb(Plugin *plugin, PluginWindow *pluginwindow)
116 {
117         GtkTextView *plugin_desc = GTK_TEXT_VIEW(pluginwindow->plugin_desc);
118         GtkTextBuffer *textbuf = gtk_text_view_get_buffer(plugin_desc);
119         GtkTextIter start_iter, end_iter;
120         const gchar *text;
121
122         pluginwindow->selected_plugin = plugin;
123
124         if (pluginwindow->selected_plugin != NULL) {
125                 gtk_text_buffer_get_start_iter(textbuf, &start_iter);
126                 gtk_text_buffer_get_end_iter(textbuf, &end_iter);
127                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
128                 text = plugin_get_desc(plugin);
129                 gtk_text_buffer_insert(textbuf, &start_iter, text, strlen(text));
130                 gtk_widget_set_sensitive(pluginwindow->unload_btn, TRUE);
131         } else {
132                 gtk_widget_set_sensitive(pluginwindow->unload_btn, FALSE);
133         }
134 }
135
136 static void unselect_row_cb(Plugin *plugin, PluginWindow *pluginwindow)
137 {
138         gtk_widget_set_sensitive(pluginwindow->unload_btn, FALSE);      
139 }
140
141 static void unload_cb(GtkButton *button, PluginWindow *pluginwindow)
142 {
143         Plugin *plugin = pluginwindow->selected_plugin;
144
145         g_return_if_fail(plugin != NULL);
146         plugin_unload(plugin);
147         pluginwindow->selected_plugin = NULL;
148         set_plugin_list(pluginwindow);
149 }
150
151 static void load_cb(GtkButton *button, PluginWindow *pluginwindow)
152 {
153         gchar *file, *error = NULL;
154
155         file = filesel_select_file_open(_("Select Plugin to load"), PLUGINDIR);
156         if (file == NULL)
157                 return;
158
159         plugin_load(file, &error);
160         if (error != NULL) {
161                 alertpanel_error("The following error occured while loading the plugin:\n%s\n", error);
162                 g_free(error);
163         }
164
165         set_plugin_list(pluginwindow);
166         g_free(file);
167 }
168
169 static gboolean pluginwindow_key_pressed(GtkWidget *widget, GdkEventKey *event,
170                                      PluginWindow *pluginwindow)
171 {
172         if (event) {
173                 switch (event->keyval) {
174                         case GDK_Escape : 
175                         case GDK_Return : 
176                         case GDK_KP_Enter :
177                                 close_cb(NULL, pluginwindow);
178                                 break;
179                         case GDK_Insert : 
180                         case GDK_KP_Insert :
181                         case GDK_KP_Add : 
182                         case GDK_plus :
183                                 load_cb(NULL, pluginwindow);
184                                 break;
185                         case GDK_Delete : 
186                         case GDK_KP_Delete :
187                         case GDK_KP_Subtract : 
188                         case GDK_minus :
189                                 unload_cb(NULL, pluginwindow);
190                                 break;
191                         default :
192                                 break;
193                 }
194         }
195         return FALSE;
196 }
197
198 void pluginwindow_create()
199 {
200         PluginWindow *pluginwindow;
201         /* ---------------------- code made by glade ---------------------- */
202         GtkWidget *window;
203         GtkWidget *vbox1;
204         GtkWidget *hbox2;
205         GtkWidget *scrolledwindow2;
206         GtkWidget *plugin_list_view;
207         GtkWidget *vbox2;
208         GtkWidget *frame2;
209         GtkWidget *label13;
210         GtkWidget *scrolledwindow3;
211         GtkWidget *plugin_desc;
212         GtkWidget *hbuttonbox1;
213         GtkWidget *load_btn;
214         GtkWidget *unload_btn;
215         GtkWidget *close_btn;
216         
217         pluginwindow = g_new0(PluginWindow, 1);
218
219         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
220         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
221         gtk_window_set_default_size(GTK_WINDOW(window), 480, 300);
222         gtk_window_set_title(GTK_WINDOW(window), _("Plugins"));
223         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
224
225         vbox1 = gtk_vbox_new(FALSE, 4);
226         gtk_widget_show(vbox1);
227         gtk_container_add(GTK_CONTAINER(window), vbox1);
228
229         hbox2 = gtk_hbox_new(FALSE, 8);
230         gtk_widget_show(hbox2);
231         gtk_box_pack_start(GTK_BOX(vbox1), hbox2, TRUE, TRUE, 0);
232
233         scrolledwindow2 = gtk_scrolled_window_new(NULL, NULL);
234         gtk_widget_show(scrolledwindow2);
235         gtk_box_pack_start(GTK_BOX(hbox2), scrolledwindow2, FALSE, FALSE, 0);
236         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW
237                                        (scrolledwindow2), GTK_POLICY_NEVER,
238                                        GTK_POLICY_AUTOMATIC);
239
240         plugin_list_view = pluginwindow_list_view_create(pluginwindow);
241         gtk_widget_show(plugin_list_view);
242         gtk_container_add(GTK_CONTAINER(scrolledwindow2), plugin_list_view);
243         gtk_widget_grab_focus(GTK_WIDGET(plugin_list_view));
244
245         vbox2 = gtk_vbox_new(FALSE, 0);
246         gtk_widget_show(vbox2);
247         gtk_box_pack_start(GTK_BOX(hbox2), vbox2, TRUE, TRUE, 0);
248
249         frame2 = gtk_frame_new(NULL);
250         gtk_widget_show(frame2);
251         gtk_box_pack_start(GTK_BOX(vbox2), frame2, FALSE, TRUE, 0);
252
253         label13 = gtk_label_new(_("Description"));
254         gtk_widget_show(label13);
255         gtk_container_add(GTK_CONTAINER(frame2), label13);
256         gtk_misc_set_alignment(GTK_MISC(label13), 0, 0.5);
257         gtk_misc_set_padding(GTK_MISC(label13), 2, 2);
258
259         scrolledwindow3 = gtk_scrolled_window_new(NULL, NULL);
260         gtk_widget_show(scrolledwindow3);
261         gtk_box_pack_start(GTK_BOX(vbox2), scrolledwindow3, TRUE, TRUE, 0);
262         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW
263                                        (scrolledwindow3), GTK_POLICY_NEVER,
264                                        GTK_POLICY_ALWAYS);
265
266         plugin_desc = gtk_text_view_new();
267         gtk_widget_show(plugin_desc);
268         gtk_container_add(GTK_CONTAINER(scrolledwindow3), plugin_desc);
269
270         hbuttonbox1 = gtk_hbutton_box_new();
271         gtk_widget_show(hbuttonbox1);
272         gtk_box_pack_start(GTK_BOX(vbox1), hbuttonbox1, FALSE, FALSE, 0);
273         gtk_button_box_set_layout(GTK_BUTTON_BOX(hbuttonbox1),
274                                   GTK_BUTTONBOX_END);
275         gtk_button_box_set_spacing(GTK_BUTTON_BOX(hbuttonbox1), 6);
276
277         load_btn = gtk_button_new_with_label(_("Load Plugin"));
278         gtk_widget_show(load_btn);
279         gtk_container_add(GTK_CONTAINER(hbuttonbox1), load_btn);
280         GTK_WIDGET_SET_FLAGS(load_btn, GTK_CAN_DEFAULT);
281
282         unload_btn = gtk_button_new_with_label(_("Unload Plugin"));
283         gtk_widget_show(unload_btn);
284         gtk_container_add(GTK_CONTAINER(hbuttonbox1), unload_btn);
285         GTK_WIDGET_SET_FLAGS(unload_btn, GTK_CAN_DEFAULT);
286
287         close_btn = gtk_button_new_from_stock(GTK_STOCK_CLOSE);
288         gtk_widget_show(close_btn);
289         gtk_container_add(GTK_CONTAINER(hbuttonbox1), close_btn);
290         GTK_WIDGET_SET_FLAGS(close_btn, GTK_CAN_DEFAULT);
291         /* ----------------------------------------------------------- */
292
293         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(plugin_desc), GTK_WRAP_WORD);
294         gtk_widget_set_sensitive(GTK_WIDGET(unload_btn), FALSE);
295
296
297         g_signal_connect(G_OBJECT(load_btn), "released",
298                          G_CALLBACK(load_cb), pluginwindow);
299         g_signal_connect(G_OBJECT(unload_btn), "released",
300                          G_CALLBACK(unload_cb), pluginwindow);
301         g_signal_connect(G_OBJECT(close_btn), "released",
302                          G_CALLBACK(close_cb), pluginwindow);
303         g_signal_connect(G_OBJECT(window), "key_press_event",
304                            G_CALLBACK(pluginwindow_key_pressed), pluginwindow);
305
306         pluginwindow->window = window;
307         pluginwindow->plugin_list_view = plugin_list_view;
308         pluginwindow->plugin_desc = plugin_desc;
309         pluginwindow->unload_btn = unload_btn;
310         pluginwindow->selected_plugin = NULL;
311
312         set_plugin_list(pluginwindow);
313
314         inc_lock();
315         gtk_widget_show(window);
316 }
317
318 static GtkListStore* pluginwindow_create_data_store(void)
319 {
320         return gtk_list_store_new(N_PLUGINWINDOW_COLUMNS,
321                                   G_TYPE_STRING,        
322                                   G_TYPE_POINTER,
323                                   -1);
324 }
325
326 static GtkWidget *pluginwindow_list_view_create(PluginWindow *pluginwindow)
327 {
328         GtkTreeView *list_view;
329         GtkTreeSelection *selector;
330         GtkTreeModel *model;
331
332         model = GTK_TREE_MODEL(pluginwindow_create_data_store());
333         list_view = GTK_TREE_VIEW(gtk_tree_view_new_with_model(model));
334         g_object_unref(model);  
335         
336         gtk_tree_view_set_rules_hint(list_view, prefs_common.enable_rules_hint);
337         
338         selector = gtk_tree_view_get_selection(list_view);
339         gtk_tree_selection_set_mode(selector, GTK_SELECTION_BROWSE);
340         gtk_tree_selection_set_select_function(selector, pluginwindow_selected,
341                                                pluginwindow, NULL);
342
343         /* create the columns */
344         pluginwindow_create_list_view_columns(GTK_WIDGET(list_view));
345
346         return GTK_WIDGET(list_view);
347 }
348
349 static void pluginwindow_create_list_view_columns(GtkWidget *list_view)
350 {
351         GtkTreeViewColumn *column;
352         GtkCellRenderer *renderer;
353
354         renderer = gtk_cell_renderer_text_new();
355         column = gtk_tree_view_column_new_with_attributes
356                 (_("Plugins"),
357                  renderer,
358                  "text", PLUGINWINDOW_NAME,
359                  NULL);
360         gtk_tree_view_append_column(GTK_TREE_VIEW(list_view), column);          
361 }
362
363 static gboolean pluginwindow_selected(GtkTreeSelection *selector,
364                                       GtkTreeModel *model, 
365                                       GtkTreePath *path,
366                                       gboolean currently_selected,
367                                       gpointer data)
368 {
369         GtkTreeIter iter;
370         Plugin *plugin;
371         
372         if (!gtk_tree_model_get_iter(model, &iter, path))
373                 return TRUE;
374
375         gtk_tree_model_get(model, &iter, 
376                            PLUGINWINDOW_DATA, &plugin,
377                            -1);
378
379         if (currently_selected) 
380                 unselect_row_cb(plugin, data);
381         else
382                 select_row_cb(plugin, data);
383
384         return TRUE;
385 }
386