1 /*
2 * Copyright (C) 2003, 2004 Marco Pesenti Gritti
3 * Copyright (C) 2003, 2004 Christian Persch
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, or (at your option)
8 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 *
19 */
20
21 #include "config.h"
22
23 #include <string.h>
24 #include <glib/gi18n.h>
25 #include <gtk/gtk.h>
26
27 #include <xreader-document.h>
28 #include "ev-page-action.h"
29 #include "ev-page-action-widget.h"
30
31 /* Widget we pass back */
32 static void ev_page_action_widget_init (EvPageActionWidget *action_widget);
33 static void ev_page_action_widget_class_init (EvPageActionWidgetClass *action_widget);
34
35 enum
36 {
37 WIDGET_ACTIVATE_LINK,
38 WIDGET_N_SIGNALS
39 };
40
41 struct _EvPageActionWidget
42 {
43 GtkToolItem parent;
44
45 EvDocument *document;
46 EvDocumentModel *doc_model;
47
48 GtkWidget *entry;
49 GtkWidget *label;
50 guint signal_id;
51 GtkTreeModel *filter_model;
52 GtkTreeModel *model;
53 };
54
55 static guint widget_signals[WIDGET_N_SIGNALS] = {0, };
56
G_DEFINE_TYPE(EvPageActionWidget,ev_page_action_widget,GTK_TYPE_TOOL_ITEM)57 G_DEFINE_TYPE (EvPageActionWidget, ev_page_action_widget, GTK_TYPE_TOOL_ITEM)
58
59 static gboolean
60 show_page_number_in_pages_label (EvPageActionWidget *action_widget,
61 gint page)
62 {
63 gchar *page_label;
64 gboolean retval;
65
66 if (!ev_document_has_text_page_labels (action_widget->document))
67 return FALSE;
68
69 page_label = g_strdup_printf ("%d", page + 1);
70 retval = g_strcmp0 (page_label, gtk_entry_get_text (GTK_ENTRY (action_widget->entry))) != 0;
71 g_free (page_label);
72
73 return retval;
74 }
75
76 static void
update_pages_label(EvPageActionWidget * action_widget,gint page)77 update_pages_label (EvPageActionWidget *action_widget,
78 gint page)
79 {
80 char *label_text;
81 gint n_pages;
82
83 n_pages = ev_document_get_n_pages (action_widget->document);
84 if (show_page_number_in_pages_label (action_widget, page))
85 label_text = g_strdup_printf (_("(%d of %d)"), page + 1, n_pages);
86 else
87 label_text = g_strdup_printf (_("of %d"), n_pages);
88 gtk_entry_set_text (GTK_ENTRY (action_widget->label), label_text);
89 g_free (label_text);
90 }
91
92 static void
ev_page_action_widget_set_current_page(EvPageActionWidget * action_widget,gint page)93 ev_page_action_widget_set_current_page (EvPageActionWidget *action_widget,
94 gint page)
95 {
96 if (page >= 0) {
97 gchar *page_label;
98
99 page_label = ev_document_get_page_label (action_widget->document, page);
100 gtk_entry_set_text (GTK_ENTRY (action_widget->entry), page_label);
101 gtk_editable_set_position (GTK_EDITABLE (action_widget->entry), -1);
102 g_free (page_label);
103
104 } else {
105 gtk_entry_set_text (GTK_ENTRY (action_widget->entry), "");
106 }
107
108 update_pages_label (action_widget, page);
109 }
110
111 static void
ev_page_action_widget_update_max_width(EvPageActionWidget * action_widget)112 ev_page_action_widget_update_max_width (EvPageActionWidget *action_widget)
113 {
114 gchar *max_label;
115 gint n_pages;
116 gint max_label_len;
117 gchar *max_page_label;
118 gchar *max_page_numeric_label;
119
120 n_pages = ev_document_get_n_pages (action_widget->document);
121
122 max_page_label = ev_document_get_page_label (action_widget->document, n_pages - 1);
123 max_page_numeric_label = g_strdup_printf ("%d", n_pages);
124 if (strcmp (max_page_label, max_page_numeric_label) != 0)
125 max_label = g_strdup_printf (_("(%d of %d)"), n_pages, n_pages);
126 else
127 max_label = g_strdup_printf (_("of %d"), n_pages);
128 g_free (max_page_label);
129
130 gtk_entry_set_width_chars (GTK_ENTRY (action_widget->label), strlen (max_label));
131 g_free (max_label);
132
133 max_label_len = ev_document_get_max_label_len (action_widget->document);
134 gtk_entry_set_width_chars (GTK_ENTRY (action_widget->entry),
135 CLAMP (max_label_len, strlen (max_page_numeric_label) + 1, 12));
136 g_free (max_page_numeric_label);
137 }
138
139 static void
page_changed_cb(EvDocumentModel * model,gint old_page,gint new_page,EvPageActionWidget * action_widget)140 page_changed_cb (EvDocumentModel *model,
141 gint old_page,
142 gint new_page,
143 EvPageActionWidget *action_widget)
144 {
145 ev_page_action_widget_set_current_page (action_widget, new_page);
146 }
147
148 static gboolean
page_scroll_cb(EvPageActionWidget * action_widget,GdkEventScroll * event)149 page_scroll_cb (EvPageActionWidget *action_widget, GdkEventScroll *event)
150 {
151 EvDocumentModel *model = action_widget->doc_model;
152 gint pageno;
153
154 pageno = ev_document_model_get_page (model);
155 if ((event->direction == GDK_SCROLL_DOWN) &&
156 (pageno < ev_document_get_n_pages (action_widget->document) - 1))
157 pageno++;
158 if ((event->direction == GDK_SCROLL_UP) && (pageno > 0))
159 pageno--;
160 ev_document_model_set_page (model, pageno);
161
162 return TRUE;
163 }
164
165 static void
activate_cb(EvPageActionWidget * action_widget)166 activate_cb (EvPageActionWidget *action_widget)
167 {
168 EvDocumentModel *model;
169 const char *text;
170 EvLinkDest *link_dest;
171 EvLinkAction *link_action;
172 EvLink *link;
173 gchar *link_text;
174 gint current_page;
175
176 model = action_widget->doc_model;
177 current_page = ev_document_model_get_page (model);
178
179 text = gtk_entry_get_text (GTK_ENTRY (action_widget->entry));
180
181 link_dest = ev_link_dest_new_page_label (text);
182 link_action = ev_link_action_new_dest (link_dest);
183 link_text = g_strdup_printf ("Page: %s", text);
184 link = ev_link_new (link_text, link_action);
185
186 g_signal_emit (action_widget, widget_signals[WIDGET_ACTIVATE_LINK], 0, link);
187
188 g_object_unref (link_dest);
189 g_object_unref (link_action);
190 g_object_unref (link);
191 g_free (link_text);
192
193 if (current_page == ev_document_model_get_page (model))
194 ev_page_action_widget_set_current_page (action_widget, current_page);
195 }
196
197 static gboolean
focus_out_cb(EvPageActionWidget * action_widget)198 focus_out_cb (EvPageActionWidget *action_widget)
199 {
200 ev_page_action_widget_set_current_page (action_widget, ev_document_model_get_page (action_widget->doc_model));
201
202 return FALSE;
203 }
204
205 static void
ev_page_action_widget_init(EvPageActionWidget * action_widget)206 ev_page_action_widget_init (EvPageActionWidget *action_widget)
207 {
208 GtkWidget *hbox;
209 AtkObject *obj;
210 GtkStyleContext *style_context;
211
212 hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
213 style_context = gtk_widget_get_style_context (hbox);
214 gtk_style_context_add_class (style_context, GTK_STYLE_CLASS_RAISED);
215 gtk_style_context_add_class (style_context, GTK_STYLE_CLASS_LINKED);
216 action_widget->entry = gtk_entry_new ();
217 gtk_widget_add_events (action_widget->entry, GDK_BUTTON_MOTION_MASK | GDK_SCROLL_MASK);
218 gtk_entry_set_width_chars (GTK_ENTRY (action_widget->entry), 5);
219 gtk_entry_set_text (GTK_ENTRY (action_widget->entry), "");
220 g_signal_connect_swapped (action_widget->entry, "scroll-event",
221 G_CALLBACK (page_scroll_cb),
222 action_widget);
223 g_signal_connect_swapped (action_widget->entry, "activate",
224 G_CALLBACK (activate_cb),
225 action_widget);
226 g_signal_connect_swapped (action_widget->entry, "focus-out-event",
227 G_CALLBACK (focus_out_cb), action_widget);
228
229 obj = gtk_widget_get_accessible (action_widget->entry);
230 atk_object_set_name (obj, "page-label-entry");
231
232 gtk_box_pack_start (GTK_BOX (hbox), action_widget->entry,
233 FALSE, FALSE, 0);
234 gtk_widget_show (action_widget->entry);
235
236 action_widget->label = gtk_entry_new ();
237 gtk_widget_set_sensitive (action_widget->label, FALSE);
238 gtk_entry_set_width_chars (GTK_ENTRY (action_widget->label), 5);
239 gtk_box_pack_start (GTK_BOX (hbox), action_widget->label,
240 FALSE, FALSE, 0);
241 gtk_widget_show (action_widget->label);
242
243 g_object_set (G_OBJECT (action_widget), "margin-left", 8, "margin-right", 8, NULL);
244 gtk_container_add (GTK_CONTAINER (action_widget), hbox);
245 gtk_widget_show (hbox);
246
247 gtk_widget_show (GTK_WIDGET (action_widget));
248 }
249
250 static void
ev_page_action_widget_document_changed_cb(EvDocumentModel * model,GParamSpec * pspec,EvPageActionWidget * action_widget)251 ev_page_action_widget_document_changed_cb (EvDocumentModel *model,
252 GParamSpec *pspec,
253 EvPageActionWidget *action_widget)
254 {
255 EvDocument *document = ev_document_model_get_document (model);
256
257 g_object_ref (document);
258 if (action_widget->document)
259 g_object_unref (action_widget->document);
260 action_widget->document = document;
261
262 if (action_widget->signal_id > 0) {
263 g_signal_handler_disconnect (action_widget->doc_model,
264 action_widget->signal_id);
265 action_widget->signal_id = 0;
266 }
267 action_widget->signal_id =
268 g_signal_connect_object (action_widget->doc_model,
269 "page-changed",
270 G_CALLBACK (page_changed_cb),
271 action_widget, 0);
272
273 ev_page_action_widget_set_current_page (action_widget,
274 ev_document_model_get_page (model));
275 ev_page_action_widget_update_max_width (action_widget);
276 }
277
278 void
ev_page_action_widget_set_model(EvPageActionWidget * action_widget,EvDocumentModel * model)279 ev_page_action_widget_set_model (EvPageActionWidget *action_widget,
280 EvDocumentModel *model)
281 {
282 if (action_widget->doc_model) {
283 g_object_remove_weak_pointer (G_OBJECT (action_widget->doc_model),
284 (gpointer)&action_widget->doc_model);
285 }
286 action_widget->doc_model = model;
287 g_object_add_weak_pointer (G_OBJECT (model),
288 (gpointer)&action_widget->doc_model);
289
290 g_signal_connect (model, "notify::document",
291 G_CALLBACK (ev_page_action_widget_document_changed_cb),
292 action_widget);
293 }
294
295 static void
ev_page_action_widget_finalize(GObject * object)296 ev_page_action_widget_finalize (GObject *object)
297 {
298 EvPageActionWidget *action_widget = EV_PAGE_ACTION_WIDGET (object);
299
300 if (action_widget->doc_model != NULL) {
301 if (action_widget->signal_id > 0) {
302 if (g_signal_handler_is_connected(action_widget->doc_model,
303 action_widget->signal_id))
304 g_signal_handler_disconnect (action_widget->doc_model,
305 action_widget->signal_id);
306 action_widget->signal_id = 0;
307 }
308 g_object_remove_weak_pointer (G_OBJECT (action_widget->doc_model),
309 (gpointer)&action_widget->doc_model);
310 action_widget->doc_model = NULL;
311 }
312
313 if (action_widget->document) {
314 g_object_unref (action_widget->document);
315 action_widget->document = NULL;
316 }
317
318 G_OBJECT_CLASS (ev_page_action_widget_parent_class)->finalize (object);
319 }
320
321 static void
ev_page_action_widget_class_init(EvPageActionWidgetClass * class)322 ev_page_action_widget_class_init (EvPageActionWidgetClass *class)
323 {
324 GObjectClass *object_class = G_OBJECT_CLASS (class);
325
326 object_class->finalize = ev_page_action_widget_finalize;
327
328 widget_signals[WIDGET_ACTIVATE_LINK] =
329 g_signal_new ("activate_link",
330 G_OBJECT_CLASS_TYPE (object_class),
331 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
332 G_STRUCT_OFFSET (EvPageActionWidgetClass, activate_link),
333 NULL, NULL,
334 g_cclosure_marshal_VOID__OBJECT,
335 G_TYPE_NONE, 1,
336 G_TYPE_OBJECT);
337
338 }
339
340 static gboolean
match_selected_cb(GtkEntryCompletion * completion,GtkTreeModel * filter_model,GtkTreeIter * filter_iter,EvPageActionWidget * proxy)341 match_selected_cb (GtkEntryCompletion *completion,
342 GtkTreeModel *filter_model,
343 GtkTreeIter *filter_iter,
344 EvPageActionWidget *proxy)
345 {
346 EvLink *link;
347 GtkTreeIter *iter;
348
349 gtk_tree_model_get (filter_model, filter_iter,
350 0, &iter,
351 -1);
352 gtk_tree_model_get (proxy->model, iter,
353 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
354 -1);
355
356 g_signal_emit (proxy, widget_signals[WIDGET_ACTIVATE_LINK], 0, link);
357
358 if (link)
359 g_object_unref (link);
360
361 gtk_tree_iter_free (iter);
362
363 return TRUE;
364 }
365
366
367 static void
display_completion_text(GtkCellLayout * cell_layout,GtkCellRenderer * renderer,GtkTreeModel * filter_model,GtkTreeIter * filter_iter,EvPageActionWidget * proxy)368 display_completion_text (GtkCellLayout *cell_layout,
369 GtkCellRenderer *renderer,
370 GtkTreeModel *filter_model,
371 GtkTreeIter *filter_iter,
372 EvPageActionWidget *proxy)
373 {
374 EvLink *link;
375 GtkTreeIter *iter;
376
377 gtk_tree_model_get (filter_model, filter_iter,
378 0, &iter,
379 -1);
380 gtk_tree_model_get (proxy->model, iter,
381 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
382 -1);
383
384 g_object_set (renderer, "text", ev_link_get_title (link), NULL);
385
386 if (link)
387 g_object_unref (link);
388
389 gtk_tree_iter_free (iter);
390 }
391
392 static gboolean
match_completion(GtkEntryCompletion * completion,const gchar * key,GtkTreeIter * filter_iter,EvPageActionWidget * proxy)393 match_completion (GtkEntryCompletion *completion,
394 const gchar *key,
395 GtkTreeIter *filter_iter,
396 EvPageActionWidget *proxy)
397 {
398 EvLink *link;
399 GtkTreeIter *iter;
400 const gchar *text = NULL;
401
402 gtk_tree_model_get (gtk_entry_completion_get_model (completion),
403 filter_iter,
404 0, &iter,
405 -1);
406 gtk_tree_model_get (proxy->model, iter,
407 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
408 -1);
409
410
411 if (link) {
412 text = ev_link_get_title (link);
413 g_object_unref (link);
414 }
415
416 gtk_tree_iter_free (iter);
417
418 if (text && key) {
419 gchar *normalized_text;
420 gchar *normalized_key;
421 gchar *case_normalized_text;
422 gchar *case_normalized_key;
423 gboolean retval = FALSE;
424
425 normalized_text = g_utf8_normalize (text, -1, G_NORMALIZE_ALL);
426 normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
427 case_normalized_text = g_utf8_casefold (normalized_text, -1);
428 case_normalized_key = g_utf8_casefold (normalized_key, -1);
429
430 if (strstr (case_normalized_text, case_normalized_key))
431 retval = TRUE;
432
433 g_free (normalized_text);
434 g_free (normalized_key);
435 g_free (case_normalized_text);
436 g_free (case_normalized_key);
437
438 return retval;
439 }
440
441 return FALSE;
442 }
443
444 /* user data to set on the widget. */
445 #define EPA_FILTER_MODEL_DATA "epa-filter-model"
446
447 static gboolean
build_new_tree_cb(GtkTreeModel * model,GtkTreePath * path,GtkTreeIter * iter,gpointer data)448 build_new_tree_cb (GtkTreeModel *model,
449 GtkTreePath *path,
450 GtkTreeIter *iter,
451 gpointer data)
452 {
453 GtkTreeModel *filter_model = GTK_TREE_MODEL (data);
454 EvLink *link;
455 EvLinkAction *action;
456 EvLinkActionType type;
457
458 gtk_tree_model_get (model, iter,
459 EV_DOCUMENT_LINKS_COLUMN_LINK, &link,
460 -1);
461
462 if (!link)
463 return FALSE;
464
465 action = ev_link_get_action (link);
466 if (!action) {
467 g_object_unref (link);
468 return FALSE;
469 }
470
471 type = ev_link_action_get_action_type (action);
472
473 if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
474 GtkTreeIter filter_iter;
475
476 gtk_list_store_append (GTK_LIST_STORE (filter_model), &filter_iter);
477 gtk_list_store_set (GTK_LIST_STORE (filter_model), &filter_iter,
478 0, iter,
479 -1);
480 }
481
482 g_object_unref (link);
483
484 return FALSE;
485 }
486
487 static GtkTreeModel *
get_filter_model_from_model(GtkTreeModel * model)488 get_filter_model_from_model (GtkTreeModel *model)
489 {
490 GtkTreeModel *filter_model;
491
492 filter_model =
493 (GtkTreeModel *) g_object_get_data (G_OBJECT (model), EPA_FILTER_MODEL_DATA);
494 if (filter_model == NULL) {
495 filter_model = (GtkTreeModel *) gtk_list_store_new (1, GTK_TYPE_TREE_ITER);
496
497 gtk_tree_model_foreach (model,
498 build_new_tree_cb,
499 filter_model);
500 g_object_set_data_full (G_OBJECT (model), EPA_FILTER_MODEL_DATA, filter_model, g_object_unref);
501 }
502
503 return filter_model;
504 }
505
506
507 void
ev_page_action_widget_update_links_model(EvPageActionWidget * proxy,GtkTreeModel * model)508 ev_page_action_widget_update_links_model (EvPageActionWidget *proxy, GtkTreeModel *model)
509 {
510 GtkTreeModel *filter_model;
511 GtkEntryCompletion *completion;
512 GtkCellRenderer *renderer;
513
514 if (!model)
515 return;
516
517 /* Magik */
518 proxy->model = model;
519 filter_model = get_filter_model_from_model (model);
520
521 completion = gtk_entry_completion_new ();
522 g_object_set (G_OBJECT (completion),
523 "popup-set-width", FALSE,
524 "model", filter_model,
525 NULL);
526
527 g_signal_connect (completion, "match-selected", G_CALLBACK (match_selected_cb), proxy);
528 gtk_entry_completion_set_match_func (completion,
529 (GtkEntryCompletionMatchFunc) match_completion,
530 proxy, NULL);
531
532 /* Set up the layout */
533 renderer = (GtkCellRenderer *)
534 g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
535 "ellipsize", PANGO_ELLIPSIZE_END,
536 "width_chars", 30,
537 NULL);
538 gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (completion), renderer, TRUE);
539 gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (completion),
540 renderer,
541 (GtkCellLayoutDataFunc) display_completion_text,
542 proxy, NULL);
543 gtk_entry_set_completion (GTK_ENTRY (proxy->entry), completion);
544
545 g_object_unref (completion);
546 }
547
548 void
ev_page_action_widget_grab_focus(EvPageActionWidget * proxy)549 ev_page_action_widget_grab_focus (EvPageActionWidget *proxy)
550 {
551 gtk_widget_grab_focus (proxy->entry);
552 }
553
554