tazweb view src/main.c @ rev 95

Make sure HOME/Downloads folder exist before going into it.
author Christopher Rogers <slaxemulator@gmail.com>
date Fri Apr 29 20:27:16 2011 +0000 (2011-04-29)
parents dc7215b94384
children b8c741e8bc63
line source
1 /*
2 * TazWeb is a radically simple web browser providing a single window
3 * with a single toolbar with buttons, an URL entry and search as well
4 * as a contextual menu, but no menu bar or tabs. Commented line code
5 * starts with // and comments are between * *
6 *
7 * Copyright (C) 2011 SliTaz GNU/Linux - BSD License
8 * See AUTHORS and LICENSE for detailed information
9 *
10 */
11
12 #include <gtk/gtk.h>
13 #include <webkit/webkit.h>
14
15 #define CONFIG g_strdup_printf("%s/.config/tazweb", g_get_home_dir())
16 #define START "file:///usr/share/webhome/index.html"
17 #define SEARCH "http://www.google.com/search?q=%s"
18
19 /* Needs AppleWebKit/531.2+ to handle all sites ? */
20 static gchar *useragent = "TazWeb (X11; SliTaz GNU/Linux; U; en_US)";
21
22 static GtkWidget* create_window(WebKitWebView** newwebview);
23 static GtkWidget *mainwindow, *vbox, *browser, *toolbar;
24 static WebKitWebView *webview;
25 static WebKitWebFrame *frame;
26 static gint count = 0;
27 const gchar* uri;
28
29 /* Create an icon */
30 static GdkPixbuf*
31 create_pixbuf(const gchar* image)
32 {
33 GdkPixbuf *pixbuf;
34 pixbuf = gdk_pixbuf_new_from_file(image, NULL);
35 return pixbuf;
36 }
37
38 /* Can be: http://hg.slitaz.org or hg.slitaz.org */
39 static void
40 check_requested_uri()
41 {
42 uri = g_strrstr(uri, "://") ? g_strdup(uri)
43 : g_strdup_printf("http://%s", uri);
44 }
45
46 /* Update title */
47 static void
48 update_title(GtkWindow* window, WebKitWebView* webview)
49 {
50 GString *string;
51 gdouble progress;
52 gchar *title;
53
54 string = g_string_new(webkit_web_view_get_title(webview));
55 progress = webkit_web_view_get_progress(webview) * 100;
56 if (progress < 100)
57 g_string_append_printf(string, " [ %f%% ] ", progress);
58
59 title = g_string_free(string, FALSE);
60 gtk_window_set_title(window, title);
61 g_free(title);
62 }
63
64 /* Get the page title */
65 static void
66 notify_title_cb(WebKitWebView* webview, GParamSpec* pspec, GtkWidget* window)
67 {
68 update_title(GTK_WINDOW(window), webview);
69 }
70
71 /* Request progress in window title */
72 static void
73 notify_progress_cb(WebKitWebView* webview, GParamSpec* pspec, GtkWidget* window)
74 {
75 update_title(GTK_WINDOW(window), webview);
76 }
77
78 /* Notify url entry */
79 static void
80 notify_load_status_cb(WebKitWebView* webview, GParamSpec* pspec, GtkWidget* urientry)
81 {
82 if (webkit_web_view_get_load_status(webview) == WEBKIT_LOAD_COMMITTED) {
83 frame = webkit_web_view_get_main_frame(webview);
84 uri = webkit_web_frame_get_uri(frame);
85 if (uri)
86 gtk_entry_set_text(GTK_ENTRY(urientry), uri);
87 }
88 }
89
90 /* Destroy the window */
91 static void
92 destroy_cb(GtkWidget* widget, GtkWindow* window)
93 {
94 if (g_atomic_int_dec_and_test(&count))
95 gtk_main_quit();
96 }
97
98 /* Show page source */
99 static void
100 view_source_cb(GtkWidget* widget, WebKitWebView* webview)
101 {
102 gboolean source;
103
104 frame = webkit_web_view_get_main_frame(webview);
105 uri = webkit_web_frame_get_uri(frame);
106 source = webkit_web_view_get_view_source_mode(webview);
107
108 webkit_web_view_set_view_source_mode(webview, !source);
109 webkit_web_view_reload(webview);
110 }
111
112 /* URL entry callback function */
113 static void
114 uri_entry_cb(GtkWidget* urientry, WebKitWebView* webview)
115 {
116 uri = gtk_entry_get_text(GTK_ENTRY(urientry));
117 g_assert(uri);
118 check_requested_uri();
119 webkit_web_view_load_uri(webview, uri);
120 }
121
122 /* Search entry and icon callback function */
123 static void
124 search_web(GtkWidget* search, WebKitWebView* webview)
125 {
126 uri = g_strdup_printf(SEARCH, gtk_entry_get_text(GTK_ENTRY(search)));
127 g_assert(uri);
128 webkit_web_view_load_uri(webview, uri);
129 }
130
131 static void
132 search_entry_cb(GtkWidget* search, WebKitWebView* webview)
133 {
134 search_web(search, webview);
135 }
136
137 static void
138 search_icon_press_cb(GtkWidget *search, GtkEntryIconPosition pos,
139 GdkEvent *event, WebKitWebView* webview)
140 {
141 search_web(search, webview);
142 }
143
144 /* Navigation button function */
145 static void
146 go_home_cb(GtkWidget* widget, WebKitWebView* webview)
147 {
148 uri = g_strdup_printf("file://%s/home.html", CONFIG);
149 g_assert(uri);
150 webkit_web_view_load_uri(webview, uri);
151 }
152
153 static void
154 go_back_cb(GtkWidget* widget, WebKitWebView* webview)
155 {
156 webkit_web_view_go_back(webview);
157 }
158
159 static void
160 go_forward_cb(GtkWidget* widget, WebKitWebView* webview)
161 {
162 webkit_web_view_go_forward(webview);
163 }
164
165 /* Fullscreen and unfullscreen callback function */
166 //static void
167 //fullscreen_cb(GtkWindow* window, gpointer data)
168 //{
169 //GdkWindowState state;
170 //state = gdk_window_get_state(gtk_widget_get_window(GTK_WIDGET(mainwindow)));
171
172 //if(state & GDK_WINDOW_STATE_FULLSCREEN)
173 //gtk_window_unfullscreen(GTK_WINDOW(mainwindow));
174 //else
175 //gtk_window_fullscreen(GTK_WINDOW(mainwindow));
176 //}
177
178 /* TazWeb doc callback function */
179 static void
180 tazweb_doc_cb(GtkWidget* widget, WebKitWebView *webview)
181 {
182 uri = ("file:///usr/share/doc/tazweb/tazweb.html");
183 g_assert(uri);
184 webkit_web_view_load_uri(webview, uri);
185 }
186
187 /* Download function */
188 static gboolean
189 download_requested_cb(WebKitWebView *webview, WebKitDownload *download,
190 gpointer user_data)
191 {
192 const gchar* buffer;
193 uri = webkit_download_get_uri(download);
194 asprintf(&buffer, "xterm -T 'Download' -geom 72x10+0-24 -e \
195 'mkdir -p $HOME/Downloads && cd $HOME/Downloads && wget -c %s; sleep 2' &", uri);
196 system(buffer);
197 }
198
199 /* Zoom out and in callback function */
200 static void
201 zoom_out_cb(GtkWidget *widget, WebKitWebView* webview)
202 {
203 webkit_web_view_zoom_out(webview);
204 }
205
206 static void
207 zoom_in_cb(GtkWidget *widget, WebKitWebView* webview)
208 {
209 webkit_web_view_zoom_in(webview);
210 }
211
212 /* Printing callback function */
213 static void
214 print_page_cb (GtkWidget *widget, gpointer data)
215 {
216 webkit_web_frame_print (webkit_web_view_get_main_frame (
217 WEBKIT_WEB_VIEW (webview)));
218 }
219
220 /* New webview callbacks */
221 static WebKitWebView*
222 create_web_view_cb(WebKitWebView* webview, WebKitWebFrame* web_frame,
223 GtkWidget* window)
224 {
225 WebKitWebView *newview;
226 create_window(&newview);
227 return newview;
228 }
229
230 static gboolean
231 webview_ready_cb(WebKitWebView* webview, GtkWidget* window)
232 {
233 gtk_widget_grab_focus(GTK_WIDGET(webview));
234 gtk_widget_show_all(window);
235 return FALSE;
236 }
237
238 static gboolean
239 close_webview_cb(WebKitWebView* webview, GtkWidget* window)
240 {
241 gtk_widget_destroy(window);
242 return TRUE;
243 }
244
245 /* Add a bookmark to home.html */
246 void
247 add_bookmark_cb(GtkWidget *widget, gpointer data)
248 {
249 const gchar* title;
250 const gchar* buffer;
251
252 title = webkit_web_view_get_title(WEBKIT_WEB_VIEW (webview));
253 uri = webkit_web_view_get_uri(WEBKIT_WEB_VIEW (webview));
254
255 asprintf(&buffer, "sed -i \
256 -e '/<!-- end:bookmarks -->/ i <li><a href=\"%s\">%s</a></li>' \
257 -e s'/^<li>/ <li>/' $HOME/.config/tazweb/home.html &",
258 uri, title);
259 system(buffer);
260 }
261
262 /* Add items to WebKit contextual menu */
263 static void
264 populate_menu_cb(WebKitWebView *webview, GtkMenu *menu, gpointer data)
265 {
266 GtkWidget* item;
267
268 /* Separator */
269 item = gtk_separator_menu_item_new();
270 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
271
272 /* Zoom in */
273 item = gtk_image_menu_item_new_with_label("Zoom in");
274 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
275 gtk_image_new_from_stock(GTK_STOCK_ZOOM_IN, GTK_ICON_SIZE_MENU));
276 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
277 g_signal_connect(item, "activate", G_CALLBACK(zoom_in_cb), webview);
278
279 /* Zoom out */
280 item = gtk_image_menu_item_new_with_label("Zoom out");
281 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
282 gtk_image_new_from_stock(GTK_STOCK_ZOOM_OUT, GTK_ICON_SIZE_MENU));
283 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
284 g_signal_connect(item, "activate", G_CALLBACK(zoom_out_cb), webview);
285
286 /* Separator */
287 item = gtk_separator_menu_item_new();
288 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
289
290 /* Add to bookmarks */
291 item = gtk_image_menu_item_new_with_label("Add a bookmark");
292 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
293 gtk_image_new_from_stock(GTK_STOCK_ADD, GTK_ICON_SIZE_MENU));
294 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
295 g_signal_connect(item, "activate", G_CALLBACK(add_bookmark_cb), webview);
296
297 /* Separator */
298 item = gtk_separator_menu_item_new();
299 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
300
301 /* View source mode */
302 item = gtk_image_menu_item_new_with_label("View source mode");
303 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
304 gtk_image_new_from_stock(GTK_STOCK_PROPERTIES, GTK_ICON_SIZE_MENU));
305 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
306 g_signal_connect(item, "activate", G_CALLBACK(view_source_cb), webview);
307
308 /* Printing */
309 item = gtk_image_menu_item_new_with_label("Print this page");
310 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
311 gtk_image_new_from_stock(GTK_STOCK_PRINT, GTK_ICON_SIZE_MENU));
312 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
313 g_signal_connect(item, "activate", G_CALLBACK(print_page_cb), webview);
314
315 /* Separator */
316 item = gtk_separator_menu_item_new();
317 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
318
319 /* TazWeb documentation */
320 item = gtk_image_menu_item_new_with_label("TazWeb manual");
321 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
322 gtk_image_new_from_stock(GTK_STOCK_HELP, GTK_ICON_SIZE_MENU));
323 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
324 g_signal_connect(item, "activate", G_CALLBACK(tazweb_doc_cb), webview);
325
326 gtk_widget_show_all(GTK_WIDGET(menu));
327 }
328
329 /* Scrolled window for the webview */
330 static GtkWidget*
331 create_browser(GtkWidget* window, GtkWidget* urientry, GtkWidget* search,
332 WebKitWebView* webview)
333 {
334 WebKitWebSettings *settings;
335
336 browser = gtk_scrolled_window_new(NULL, NULL);
337 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(browser),
338 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
339
340 gtk_container_add(GTK_CONTAINER(browser), GTK_WIDGET(webview));
341
342 /* User agent */
343 settings = webkit_web_view_get_settings (webview);
344 g_object_set(G_OBJECT(settings), "user-agent", useragent, NULL);
345
346 /* Connect WebKit events */
347 g_signal_connect(webview, "notify::title",
348 G_CALLBACK(notify_title_cb), window);
349 g_signal_connect(webview, "notify::progress",
350 G_CALLBACK(notify_progress_cb), window);
351 g_signal_connect(webview, "notify::load-status",
352 G_CALLBACK(notify_load_status_cb), urientry);
353 g_signal_connect(webview, "download-requested",
354 G_CALLBACK(download_requested_cb), NULL);
355 g_signal_connect(webview, "create-web-view",
356 G_CALLBACK(create_web_view_cb), window);
357 g_signal_connect(webview, "web-view-ready",
358 G_CALLBACK(webview_ready_cb), window);
359 g_signal_connect(webview, "close-web-view",
360 G_CALLBACK(close_webview_cb), window);
361
362 /* Connect WebKit contextual menu items */
363 g_object_connect(G_OBJECT(webview), "signal::populate-popup",
364 G_CALLBACK(populate_menu_cb), webview, NULL);
365
366 return browser;
367 }
368
369 static GtkWidget*
370 create_toolbar(GtkWidget* urientry, GtkWidget* search, WebKitWebView* webview)
371 {
372 GtkToolItem* item;
373
374 toolbar = gtk_toolbar_new();
375 gtk_toolbar_set_orientation(GTK_TOOLBAR(toolbar),
376 GTK_ORIENTATION_HORIZONTAL);
377 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar),
378 GTK_TOOLBAR_BOTH_HORIZ);
379
380 /* The back button */
381 item = gtk_tool_button_new_from_stock(GTK_STOCK_GO_BACK);
382 g_signal_connect(G_OBJECT(item), "clicked",
383 G_CALLBACK(go_back_cb), webview);
384 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
385
386 /* The forward button */
387 item = gtk_tool_button_new_from_stock(GTK_STOCK_GO_FORWARD);
388 g_signal_connect(G_OBJECT(item), "clicked",
389 G_CALLBACK(go_forward_cb), webview);
390 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
391
392 /* Home button */
393 item = gtk_tool_button_new_from_stock(GTK_STOCK_HOME);
394 g_signal_connect(G_OBJECT(item), "clicked",
395 G_CALLBACK(go_home_cb), webview);
396 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
397
398 /* URL entry */
399 item = gtk_tool_item_new();
400 gtk_tool_item_set_expand(item, TRUE);
401 gtk_widget_set_size_request(urientry, 0, 20);
402 gtk_container_add(GTK_CONTAINER(item), urientry);
403 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
404 g_signal_connect(G_OBJECT(urientry), "activate",
405 G_CALLBACK(uri_entry_cb), webview);
406
407 /* Separator */
408 item = gtk_separator_tool_item_new();
409 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
410
411 /* Search entry */
412 item = gtk_tool_item_new();
413 gtk_widget_set_size_request(search, 150, 20);
414 gtk_container_add(GTK_CONTAINER(item), search);
415 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
416 gtk_entry_set_icon_from_stock(GTK_ENTRY(search),
417 GTK_ENTRY_ICON_SECONDARY, GTK_STOCK_FIND);
418 g_signal_connect(GTK_ENTRY(search), "icon-press",
419 G_CALLBACK(search_icon_press_cb), webview);
420 g_signal_connect(G_OBJECT(search), "activate",
421 G_CALLBACK(search_entry_cb), webview);
422
423 /* The Fullscreen button */
424 //item = gtk_tool_button_new_from_stock(GTK_STOCK_FULLSCREEN);
425 //g_signal_connect(G_OBJECT(item), "clicked",
426 //G_CALLBACK(fullscreen_cb), NULL);
427 //gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
428
429 return toolbar;
430 }
431
432 /* Main window */
433 static GtkWidget*
434 create_window(WebKitWebView** newwebview)
435 {
436 GtkWidget *window;
437 GtkWidget *urientry;
438 GtkWidget *search;
439
440 g_atomic_int_inc(&count);
441
442 /* Default TazWeb window */
443 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
444 gtk_window_set_default_size(GTK_WINDOW(window), 800, 600);
445 gtk_window_set_icon(GTK_WINDOW(window),
446 create_pixbuf("/usr/share/pixmaps/tazweb.png"));
447 gtk_widget_set_name(window, "TazWeb");
448 g_signal_connect(window, "destroy", G_CALLBACK(destroy_cb), NULL);
449
450 /* Webview and widgets */
451 webview = WEBKIT_WEB_VIEW(webkit_web_view_new());
452 urientry = gtk_entry_new();
453 search = gtk_entry_new();
454 vbox = gtk_vbox_new(FALSE, 0);
455
456 /* Pack box and container */
457 gtk_box_pack_start(GTK_BOX(vbox),
458 create_browser(window, urientry, search, webview), TRUE, TRUE, 0);
459 gtk_box_pack_start(GTK_BOX(vbox),
460 create_toolbar(urientry, search, webview), FALSE, FALSE, 0);
461 gtk_container_add(GTK_CONTAINER(window), vbox);
462
463 if (newwebview)
464 *newwebview = webview;
465
466 return window;
467 }
468
469 int
470 main(int argc, char* argv[])
471 {
472 gtk_init(NULL, NULL);
473 if (!g_thread_supported())
474 g_thread_init(NULL);
475
476 /* Get a default home.html if missing */
477 if (! g_file_test(CONFIG, G_FILE_TEST_EXISTS))
478 system("cp -r /usr/share/tazweb $HOME/.config/tazweb");
479
480 /* Load the start page file or the url in argument */
481 uri =(char*)(argc > 1 ? argv[1] : START);
482 if (argv[1])
483 check_requested_uri();
484
485 mainwindow = create_window(&webview);
486
487 gtk_widget_show_all(mainwindow);
488 webkit_web_view_load_uri(webview, uri);
489 gtk_widget_grab_focus(GTK_WIDGET(webview));
490 gtk_main();
491
492 return 0;
493 }