3b3fa9153726270e571138b1af103c99b518b887
[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 "../inc.h"
36
37 enum {
38         PLUGINWINDOW_NAME,              /*<! plugin name */
39         PLUGINWINDOW_DATA,              /*<! Plugin pointer */
40         N_PLUGINWINDOW_COLUMNS
41 };
42
43 typedef struct _PluginWindow
44 {
45         GtkWidget *window;
46         GtkWidget *plugin_list_view;
47         GtkWidget *plugin_desc;
48         GtkWidget *unload_btn;
49
50         Plugin *selected_plugin;
51 } PluginWindow;
52
53 static GtkListStore* pluginwindow_create_data_store     (void);
54 static GtkWidget *pluginwindow_list_view_create         (PluginWindow *pluginwindow);
55 static void pluginwindow_create_list_view_columns       (GtkWidget *list_view);
56 static gboolean pluginwindow_selected                   (GtkTreeSelection *selector,
57                                                          GtkTreeModel *model, 
58                                                          GtkTreePath *path,
59                                                          gboolean currently_selected,
60                                                          gpointer data);
61
62 static void close_cb(GtkButton *button, PluginWindow *pluginwindow)
63 {
64         gtk_widget_destroy(pluginwindow->window);
65         g_free(pluginwindow);
66         plugin_save_list();
67         inc_unlock();
68 }
69
70 static void set_plugin_list(PluginWindow *pluginwindow)
71 {
72         GSList *plugins, *cur;
73         const gchar *text;
74         gint row;
75         GtkListStore *store;
76         GtkTreeIter iter;
77         GtkTextBuffer *textbuf;
78         GtkTextIter start_iter, end_iter;
79         GtkTreeSelection *selection;
80
81         plugins = plugin_get_list();
82
83         store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW
84                                 (pluginwindow->plugin_list_view)));
85         gtk_list_store_clear(store);
86         
87         textbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(pluginwindow->plugin_desc));
88         gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(pluginwindow->plugin_desc), FALSE);
89         gtk_text_view_set_editable(GTK_TEXT_VIEW(pluginwindow->plugin_desc), FALSE);
90         gtk_text_buffer_get_start_iter(textbuf, &start_iter);
91         gtk_text_buffer_get_end_iter(textbuf, &end_iter);
92         gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
93         gtk_widget_set_sensitive(pluginwindow->unload_btn, FALSE);
94
95         for(cur = plugins; cur != NULL; cur = g_slist_next(cur)) {
96                 Plugin *plugin = (Plugin *) cur->data;
97
98                 gtk_list_store_append(store, &iter);
99                 text = plugin_get_name(plugin); 
100                 gtk_list_store_set(store, &iter,
101                                    PLUGINWINDOW_NAME, text,
102                                    PLUGINWINDOW_DATA, plugin,
103                                    -1);
104         }
105
106         if (pluginwindow->selected_plugin == NULL) { 
107                 selection = gtk_tree_view_get_selection(GTK_TREE_VIEW
108                                 (pluginwindow->plugin_list_view));
109                 gtk_tree_selection_unselect_all(selection);                             
110         }               
111         g_slist_free(plugins);
112 }
113
114 static void select_row_cb(Plugin *plugin, PluginWindow *pluginwindow)
115 {
116         GtkTextView *plugin_desc = GTK_TEXT_VIEW(pluginwindow->plugin_desc);
117         GtkTextBuffer *textbuf = gtk_text_view_get_buffer(plugin_desc);
118         GtkTextIter start_iter, end_iter;
119         const gchar *text;
120
121         pluginwindow->selected_plugin = plugin;
122
123         if (pluginwindow->selected_plugin != NULL) {
124                 gtk_text_buffer_get_start_iter(textbuf, &start_iter);
125                 gtk_text_buffer_get_end_iter(textbuf, &end_iter);
126                 gtk_text_buffer_delete(textbuf, &start_iter, &end_iter);
127                 text = plugin_get_desc(plugin);
128                 gtk_text_buffer_insert(textbuf, &start_iter, text, strlen(text));
129                 gtk_widget_set_sensitive(pluginwindow->unload_btn, TRUE);
130         } else {
131                 gtk_widget_set_sensitive(pluginwindow->unload_btn, FALSE);
132         }
133 }
134
135 static void unselect_row_cb(Plugin *plugin, PluginWindow *pluginwindow)
136 {
137         gtk_widget_set_sensitive(pluginwindow->unload_btn, FALSE);      
138 }
139
140 static void unload_cb(GtkButton *button, PluginWindow *pluginwindow)
141 {
142         Plugin *plugin = pluginwindow->selected_plugin;
143
144         g_return_if_fail(plugin != NULL);
145         plugin_unload(plugin);
146         pluginwindow->selected_plugin = NULL;
147         set_plugin_list(pluginwindow);
148 }
149
150 static void load_cb(GtkButton *button, PluginWindow *pluginwindow)
151 {
152         gchar *file, *error = NULL;
153
154         file = filesel_select_file_open(_("Select Plugin to load"), PLUGINDIR);
155         if (file == NULL)
156                 return;
157
158         plugin_load(file, &error);
159         if (error != NULL) {
160                 alertpanel_error("The following error occured while loading the plugin:\n%s\n", error);
161                 g_free(error);
162         }
163
164         set_plugin_list(pluginwindow);
165         g_free(file);
166 }
167
168 static gboolean pluginwindow_key_pressed(GtkWidget *widget, GdkEventKey *event,
169                                      PluginWindow *pluginwindow)
170 {
171         if (event) {
172                 switch (event->keyval) {
173                         case GDK_Escape : 
174                         case GDK_Return : 
175                         case GDK_KP_Enter :
176                                 close_cb(NULL, pluginwindow);
177                                 break;
178                         case GDK_Insert : 
179                         case GDK_KP_Insert :
180                         case GDK_KP_Add : 
181                         case GDK_plus :
182                                 load_cb(NULL, pluginwindow);
183                                 break;
184                         case GDK_Delete : 
185                         case GDK_KP_Delete :
186                         case GDK_KP_Subtract : 
187                         case GDK_minus :
188                                 unload_cb(NULL, pluginwindow);
189                                 break;
190                         default :
191                                 break;
192                 }
193         }
194         return FALSE;
195 }
196
197 void pluginwindow_create()
198 {
199         PluginWindow *pluginwindow;
200         /* ---------------------- code made by glade ---------------------- */
201         GtkWidget *window;
202         GtkWidget *vbox1;
203         GtkWidget *hbox2;
204         GtkWidget *scrolledwindow2;
205         GtkWidget *plugin_list_view;
206         GtkWidget *vbox2;
207         GtkWidget *frame2;
208         GtkWidget *label13;
209         GtkWidget *scrolledwindow3;
210         GtkWidget *plugin_desc;
211         GtkWidget *hbuttonbox1;
212         GtkWidget *load_btn;
213         GtkWidget *unload_btn;
214         GtkWidget *close_btn;
215         
216         pluginwindow = g_new0(PluginWindow, 1);
217
218         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
219         gtk_container_set_border_width(GTK_CONTAINER(window), 8);
220         gtk_window_set_default_size(GTK_WINDOW(window), 480, 300);
221         gtk_window_set_title(GTK_WINDOW(window), _("Plugins"));
222         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
223
224         vbox1 = gtk_vbox_new(FALSE, 4);
225         gtk_widget_show(vbox1);
226         gtk_container_add(GTK_CONTAINER(window), vbox1);
227
228         hbox2 = gtk_hbox_new(FALSE, 8);
229         gtk_widget_show(hbox2);
230         gtk_box_pack_start(GTK_BOX(vbox1), hbox2, TRUE, TRUE, 0);
231
232         scrolledwindow2 = gtk_scrolled_window_new(NULL, NULL);
233         gtk_widget_show(scrolledwindow2);
234         gtk_box_pack_start(GTK_BOX(hbox2), scrolledwindow2, FALSE, FALSE, 0);
235         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW
236                                        (scrolledwindow2), GTK_POLICY_NEVER,
237                                        GTK_POLICY_AUTOMATIC);
238
239         plugin_list_view = pluginwindow_list_view_create(pluginwindow);
240         gtk_widget_show(plugin_list_view);
241         gtk_container_add(GTK_CONTAINER(scrolledwindow2), plugin_list_view);
242         gtk_widget_grab_focus(GTK_WIDGET(plugin_list_view));
243
244         vbox2 = gtk_vbox_new(FALSE, 0);
245         gtk_widget_show(vbox2);
246         gtk_box_pack_start(GTK_BOX(hbox2), vbox2, TRUE, TRUE, 0);
247
248         frame2 = gtk_frame_new(NULL);
249         gtk_widget_show(frame2);
250         gtk_box_pack_start(GTK_BOX(vbox2), frame2, FALSE, TRUE, 0);
251
252         label13 = gtk_label_new(_("Description"));
253         gtk_widget_show(label13);
254         gtk_container_add(GTK_CONTAINER(frame2), label13);
255         gtk_misc_set_alignment(GTK_MISC(label13), 0, 0.5);
256         gtk_misc_set_padding(GTK_MISC(label13), 2, 2);
257
258         scrolledwindow3 = gtk_scrolled_window_new(NULL, NULL);
259         gtk_widget_show(scrolledwindow3);
260         gtk_box_pack_start(GTK_BOX(vbox2), scrolledwindow3, TRUE, TRUE, 0);
261         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW
262                                        (scrolledwindow3), GTK_POLICY_NEVER,
263                                        GTK_POLICY_ALWAYS);
264
265         plugin_desc = gtk_text_view_new();
266         gtk_widget_show(plugin_desc);
267         gtk_container_add(GTK_CONTAINER(scrolledwindow3), plugin_desc);
268
269         hbuttonbox1 = gtk_hbutton_box_new();
270         gtk_widget_show(hbuttonbox1);
271         gtk_box_pack_start(GTK_BOX(vbox1), hbuttonbox1, FALSE, FALSE, 0);
272         gtk_button_box_set_layout(GTK_BUTTON_BOX(hbuttonbox1),
273                                   GTK_BUTTONBOX_END);
274         gtk_button_box_set_spacing(GTK_BUTTON_BOX(hbuttonbox1), 6);
275
276         load_btn = gtk_button_new_with_label(_("Load Plugin"));
277         gtk_widget_show(load_btn);
278         gtk_container_add(GTK_CONTAINER(hbuttonbox1), load_btn);
279         GTK_WIDGET_SET_FLAGS(load_btn, GTK_CAN_DEFAULT);
280
281         unload_btn = gtk_button_new_with_label(_("Unload Plugin"));
282         gtk_widget_show(unload_btn);
283         gtk_container_add(GTK_CONTAINER(hbuttonbox1), unload_btn);
284         GTK_WIDGET_SET_FLAGS(unload_btn, GTK_CAN_DEFAULT);
285
286         close_btn = gtk_button_new_from_stock(GTK_STOCK_CLOSE);
287         gtk_widget_show(close_btn);
288         gtk_container_add(GTK_CONTAINER(hbuttonbox1), close_btn);
289         GTK_WIDGET_SET_FLAGS(close_btn, GTK_CAN_DEFAULT);
290         /* ----------------------------------------------------------- */
291
292         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(plugin_desc), GTK_WRAP_WORD);
293         gtk_widget_set_sensitive(GTK_WIDGET(unload_btn), FALSE);
294
295
296         g_signal_connect(G_OBJECT(load_btn), "released",
297                          G_CALLBACK(load_cb), pluginwindow);
298         g_signal_connect(G_OBJECT(unload_btn), "released",
299                          G_CALLBACK(unload_cb), pluginwindow);
300         g_signal_connect(G_OBJECT(close_btn), "released",
301                          G_CALLBACK(close_cb), pluginwindow);
302         g_signal_connect(G_OBJECT(window), "key_press_event",
303                            G_CALLBACK(pluginwindow_key_pressed), pluginwindow);
304
305         pluginwindow->window = window;
306         pluginwindow->plugin_list_view = plugin_list_view;
307         pluginwindow->plugin_desc = plugin_desc;
308         pluginwindow->unload_btn = unload_btn;
309         pluginwindow->selected_plugin = NULL;
310
311         set_plugin_list(pluginwindow);
312
313         inc_lock();
314         gtk_widget_show(window);
315 }
316
317 static GtkListStore* pluginwindow_create_data_store(void)
318 {
319         return gtk_list_store_new(N_PLUGINWINDOW_COLUMNS,
320                                   G_TYPE_STRING,        
321                                   G_TYPE_POINTER,
322                                   -1);
323 }
324
325 static GtkWidget *pluginwindow_list_view_create(PluginWindow *pluginwindow)
326 {
327         GtkTreeView *list_view;
328         GtkTreeSelection *selector;
329         GtkTreeModel *model;
330
331         model = GTK_TREE_MODEL(pluginwindow_create_data_store());
332         list_view = GTK_TREE_VIEW(gtk_tree_view_new_with_model(model));
333         g_object_unref(model);  
334         
335         gtk_tree_view_set_rules_hint(list_view, TRUE);
336         
337         selector = gtk_tree_view_get_selection(list_view);
338         gtk_tree_selection_set_mode(selector, GTK_SELECTION_BROWSE);
339         gtk_tree_selection_set_select_function(selector, pluginwindow_selected,
340                                                pluginwindow, NULL);
341
342         /* create the columns */
343         pluginwindow_create_list_view_columns(GTK_WIDGET(list_view));
344
345         return GTK_WIDGET(list_view);
346 }
347
348 static void pluginwindow_create_list_view_columns(GtkWidget *list_view)
349 {
350         GtkTreeViewColumn *column;
351         GtkCellRenderer *renderer;
352
353         renderer = gtk_cell_renderer_text_new();
354         column = gtk_tree_view_column_new_with_attributes
355                 (_("Plugins"),
356                  renderer,
357                  "text", PLUGINWINDOW_NAME,
358                  NULL);
359         gtk_tree_view_append_column(GTK_TREE_VIEW(list_view), column);          
360 }
361
362 static gboolean pluginwindow_selected(GtkTreeSelection *selector,
363                                       GtkTreeModel *model, 
364                                       GtkTreePath *path,
365                                       gboolean currently_selected,
366                                       gpointer data)
367 {
368         GtkTreeIter iter;
369         Plugin *plugin;
370         
371         if (!gtk_tree_model_get_iter(model, &iter, path))
372                 return TRUE;
373
374         gtk_tree_model_get(model, &iter, 
375                            PLUGINWINDOW_DATA, &plugin,
376                            -1);
377
378         if (currently_selected) 
379                 unselect_row_cb(plugin, data);
380         else
381                 select_row_cb(plugin, data);
382
383         return TRUE;
384 }
385