tazweb view src/main.c @ rev 85

Do NOT place spaces between control statements and their parentheses (follow webkit coding style)
author Christophe Lincoln <pankso@slitaz.org>
date Wed Apr 27 00:14:00 2011 +0200 (2011-04-27)
parents c32ca77dcded
children bf2ff0574080
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
18 /* Needs AppleWebKit/531.2+ to handle all sites ? */
19 static gchar *useragent = "TazWeb (X11; SliTaz GNU/Linux; U; en_US)";
20
21 static GtkWidget* create_window(WebKitWebView** newwebview);
22 static GtkWidget *mainwindow, *vbox, *browser, *toolbar;
23 static WebKitWebView *webview;
24 static WebKitWebFrame* frame;
25 static gint count = 0;
26 const gchar* uri;
27
28 /* Create an icon */
29 static GdkPixbuf*
30 create_pixbuf(const gchar* image)
31 {
32 GdkPixbuf *pixbuf;
33 pixbuf = gdk_pixbuf_new_from_file(image, NULL);
34 return pixbuf;
35 }
36
37 /* Can be: http://hg.slitaz.org or hg.slitaz.org */
38 static void
39 check_requested_uri()
40 {
41 uri = g_strrstr(uri, "://") ? g_strdup(uri)
42 : g_strdup_printf("http://%s", uri);
43 }
44
45 /* Update title */
46 static void
47 update_title(GtkWindow* window, WebKitWebView* webview)
48 {
49 GString *string;
50 gdouble progress;
51 gchar *title;
52
53 string = g_string_new(webkit_web_view_get_title(webview));
54 progress = webkit_web_view_get_progress(webview) * 100;
55 if (progress < 100)
56 g_string_append_printf(string, " [ %f%% ] ", progress);
57
58 title = g_string_free(string, FALSE);
59 gtk_window_set_title(window, title);
60 g_free(title);
61 }
62
63 /* Get the page title */
64 static void
65 notify_title_cb(WebKitWebView* webview, GParamSpec* pspec, GtkWidget* window)
66 {
67 update_title(GTK_WINDOW(window), webview);
68 }
69
70 /* Request progress in window title */
71 static void
72 notify_progress_cb(WebKitWebView* webview, GParamSpec* pspec, GtkWidget* window)
73 {
74 update_title(GTK_WINDOW(window), webview);
75 }
76
77 /* Notify loader and url entry */
78 static void
79 notify_load_status_cb(WebKitWebView* webview, GParamSpec* pspec, GtkWidget* urientry)
80 {
81 if (webkit_web_view_get_load_status(webview) == WEBKIT_LOAD_COMMITTED) {
82 frame = webkit_web_view_get_main_frame(webview);
83 uri = webkit_web_frame_get_uri(frame);
84 if (uri)
85 gtk_entry_set_text(GTK_ENTRY(urientry), uri);
86 }
87 }
88
89 /* Destroy the window */
90 static void
91 destroy_cb(GtkWidget* widget, GtkWindow* window)
92 {
93 if (g_atomic_int_dec_and_test(&count))
94 gtk_main_quit();
95 }
96
97 /* Show page source */
98 static void
99 view_source_cb(GtkWidget* widget, WebKitWebView* webview)
100 {
101 gboolean source;
102
103 frame = webkit_web_view_get_main_frame(webview);
104 uri = webkit_web_frame_get_uri(frame);
105 source = webkit_web_view_get_view_source_mode(webview);
106
107 webkit_web_view_set_view_source_mode(webview, !source);
108 webkit_web_view_reload(webview);
109 }
110
111 /* URL entry callback function */
112 static void
113 uri_entry_cb(GtkWidget* urientry, WebKitWebView* webview)
114 {
115 uri = gtk_entry_get_text(GTK_ENTRY(urientry));
116 g_assert(uri);
117 check_requested_uri();
118 webkit_web_view_load_uri(webview, uri);
119 }
120
121 /* Search entry callback function */
122 static void
123 search_entry_cb(GtkWidget* search, WebKitWebView* webview)
124 {
125 uri = g_strdup_printf("http://www.google.com/search?q=%s",
126 gtk_entry_get_text(GTK_ENTRY(search)));
127 g_assert(uri);
128 webkit_web_view_load_uri(webview, uri);
129 }
130
131 /* Navigation button function */
132 static void
133 go_home_cb(GtkWidget* widget, WebKitWebView* webview)
134 {
135 uri = g_strdup_printf("file://%s/home.html", CONFIG);
136 g_assert(uri);
137 webkit_web_view_load_uri(webview, uri);
138 }
139
140 static void
141 go_back_cb(GtkWidget* widget, WebKitWebView* webview)
142 {
143 webkit_web_view_go_back(webview);
144 }
145
146 static void
147 go_forward_cb(GtkWidget* widget, WebKitWebView* webview)
148 {
149 webkit_web_view_go_forward(webview);
150 }
151
152 /* Fullscreen and unfullscreen callback function */
153 static void
154 fullscreen_cb(GtkWindow* window, gpointer data)
155 {
156 GdkWindowState state;
157 state = gdk_window_get_state(gtk_widget_get_window(GTK_WIDGET(mainwindow)));
158
159 if(state & GDK_WINDOW_STATE_FULLSCREEN)
160 gtk_window_unfullscreen(GTK_WINDOW(mainwindow));
161 else
162 gtk_window_fullscreen(GTK_WINDOW(mainwindow));
163 }
164
165 /* TazWeb doc callback function */
166 static void
167 tazweb_doc_cb(GtkWidget* widget, WebKitWebView *webview)
168 {
169 uri = ("file:///usr/share/doc/tazweb/tazweb.html");
170 g_assert(uri);
171 webkit_web_view_load_uri(webview, uri);
172 }
173
174 /* Download function */
175 static gboolean
176 download_requested_cb(WebKitWebView *webview, WebKitDownload *download,
177 gpointer user_data)
178 {
179 uri = webkit_download_get_uri(download);
180 const gchar* buffer;
181 asprintf(&buffer,
182 "xterm -T 'Download' -geom 72x10+0-24 -e \
183 'cd $HOME/Downloads && wget -c %s; sleep 2' &", uri);
184 system(buffer);
185 }
186
187 /* Zoom out and in callback function */
188 static void
189 zoom_out_cb(GtkWidget *widget, WebKitWebView* webview)
190 {
191 webkit_web_view_zoom_out(webview);
192 }
193
194 static void
195 zoom_in_cb(GtkWidget *widget, WebKitWebView* webview)
196 {
197 webkit_web_view_zoom_in(webview);
198 }
199
200 /* New webview clallbacks */
201 static WebKitWebView*
202 create_web_view_cb(WebKitWebView* webview, WebKitWebFrame* web_frame,
203 GtkWidget* window)
204 {
205 WebKitWebView *newview;
206 create_window(&newview);
207 return newview;
208 }
209
210 static gboolean
211 webview_ready_cb(WebKitWebView* webview, GtkWidget* window)
212 {
213 gtk_widget_grab_focus(GTK_WIDGET(webview));
214 gtk_widget_show_all(window);
215 return FALSE;
216 }
217
218 static gboolean
219 close_webview_cb(WebKitWebView* webview, GtkWidget* window)
220 {
221 gtk_widget_destroy(window);
222 return TRUE;
223 }
224
225 /* Add items to WebKit contextual menu */
226 static void
227 populate_menu_cb(WebKitWebView *webview, GtkMenu *menu, gpointer data)
228 {
229 GtkWidget* item;
230
231 /* Separator */
232 item = gtk_separator_menu_item_new();
233 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
234
235 /* Zoom in */
236 item = gtk_image_menu_item_new_with_label("Zoom in");
237 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
238 gtk_image_new_from_stock(GTK_STOCK_ZOOM_IN, GTK_ICON_SIZE_MENU));
239 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
240 g_signal_connect(item, "activate", G_CALLBACK(zoom_in_cb), webview);
241
242 /* Zoom out */
243 item = gtk_image_menu_item_new_with_label("Zoom out");
244 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
245 gtk_image_new_from_stock(GTK_STOCK_ZOOM_OUT, GTK_ICON_SIZE_MENU));
246 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
247 g_signal_connect(item, "activate", G_CALLBACK(zoom_out_cb), webview);
248
249 /* Separator */
250 item = gtk_separator_menu_item_new();
251 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
252
253 /* TazWeb documentation */
254 item = gtk_image_menu_item_new_with_label("TazWeb manual");
255 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
256 gtk_image_new_from_stock(GTK_STOCK_INFO, GTK_ICON_SIZE_MENU));
257 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
258 g_signal_connect(item, "activate", G_CALLBACK(tazweb_doc_cb), webview);
259
260 /* View source mode */
261 item = gtk_image_menu_item_new_with_label("View source mode");
262 gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(item),
263 gtk_image_new_from_stock(GTK_STOCK_PROPERTIES, GTK_ICON_SIZE_MENU));
264 gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
265 g_signal_connect(item, "activate", G_CALLBACK(view_source_cb), webview);
266
267 gtk_widget_show_all(GTK_WIDGET(menu));
268 }
269
270 /* Scrolled window for the webview */
271 static GtkWidget*
272 create_browser(GtkWidget* window, GtkWidget* urientry, GtkWidget* search,
273 WebKitWebView* webview)
274 {
275 WebKitWebSettings *settings;
276
277 browser = gtk_scrolled_window_new(NULL, NULL);
278 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(browser),
279 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
280
281 gtk_container_add(GTK_CONTAINER(browser), GTK_WIDGET(webview));
282
283 /* User agent */
284 settings = webkit_web_view_get_settings (webview);
285 g_object_set (G_OBJECT (settings), "user-agent", useragent, NULL);
286
287 /* Connect WebKit events */
288 g_signal_connect(webview, "notify::title",
289 G_CALLBACK(notify_title_cb), window);
290 g_signal_connect(webview, "notify::progress",
291 G_CALLBACK(notify_progress_cb), window);
292 g_signal_connect(webview, "notify::load-status",
293 G_CALLBACK(notify_load_status_cb), urientry);
294 g_signal_connect(webview, "download-requested",
295 G_CALLBACK(download_requested_cb), NULL);
296 g_signal_connect(webview, "create-web-view",
297 G_CALLBACK(create_web_view_cb), window);
298 g_signal_connect(webview, "web-view-ready",
299 G_CALLBACK(webview_ready_cb), window);
300 g_signal_connect(webview, "close-web-view",
301 G_CALLBACK(close_webview_cb), window);
302
303 /* Connect WebKit contextual menu items */
304 g_object_connect(G_OBJECT(webview), "signal::populate-popup",
305 G_CALLBACK(populate_menu_cb), webview, NULL);
306
307 return browser;
308 }
309
310 static GtkWidget*
311 create_toolbar(GtkWidget* urientry, GtkWidget* search, WebKitWebView* webview)
312 {
313 GtkToolItem* item;
314
315 toolbar = gtk_toolbar_new();
316 gtk_toolbar_set_orientation(GTK_TOOLBAR(toolbar),
317 GTK_ORIENTATION_HORIZONTAL);
318 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar),
319 GTK_TOOLBAR_BOTH_HORIZ);
320
321 /* The back button */
322 item = gtk_tool_button_new_from_stock(GTK_STOCK_GO_BACK);
323 g_signal_connect(G_OBJECT(item), "clicked",
324 G_CALLBACK(go_back_cb), webview);
325 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
326
327 /* The forward button */
328 item = gtk_tool_button_new_from_stock(GTK_STOCK_GO_FORWARD);
329 g_signal_connect(G_OBJECT(item), "clicked",
330 G_CALLBACK(go_forward_cb), webview);
331 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
332
333 /* Home button */
334 item = gtk_tool_button_new_from_stock(GTK_STOCK_HOME);
335 g_signal_connect(G_OBJECT(item), "clicked",
336 G_CALLBACK(go_home_cb), webview);
337 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
338
339 /* URL entry */
340 item = gtk_tool_item_new();
341 gtk_tool_item_set_expand(item, TRUE);
342 gtk_widget_set_size_request(urientry, 0, 20);
343 gtk_container_add(GTK_CONTAINER(item), urientry);
344 g_signal_connect(G_OBJECT(urientry), "activate",
345 G_CALLBACK(uri_entry_cb), webview);
346 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
347
348 /* Separator */
349 item = gtk_separator_tool_item_new();
350 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
351
352 /* Search entry */
353 item = gtk_tool_item_new();
354 gtk_widget_set_size_request(search, 150, 20);
355 gtk_container_add(GTK_CONTAINER(item), search);
356 g_signal_connect(G_OBJECT(search), "activate",
357 G_CALLBACK(search_entry_cb), webview);
358 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
359
360 /* The Fullscreen button */
361 item = gtk_tool_button_new_from_stock(GTK_STOCK_FULLSCREEN);
362 g_signal_connect(G_OBJECT(item), "clicked",
363 G_CALLBACK(fullscreen_cb), NULL);
364 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
365
366 return toolbar;
367 }
368
369 /* Main window */
370 static GtkWidget*
371 create_window(WebKitWebView** newwebview)
372 {
373 GtkWidget* window;
374 GtkWidget *urientry;
375 GtkWidget *search;
376
377 g_atomic_int_inc(&count);
378
379 /* Default TazWeb window */
380 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
381 gtk_window_set_default_size(GTK_WINDOW(window), 800, 600);
382 gtk_window_set_icon(GTK_WINDOW(window),
383 create_pixbuf("/usr/share/pixmaps/tazweb.png"));
384 gtk_widget_set_name(window, "TazWeb");
385 g_signal_connect(window, "destroy", G_CALLBACK(destroy_cb), NULL);
386
387 /* Webview and widgets */
388 webview = WEBKIT_WEB_VIEW(webkit_web_view_new());
389 urientry = gtk_entry_new();
390 search = gtk_entry_new();
391 vbox = gtk_vbox_new(FALSE, 0);
392
393 /* Pack box and container */
394 gtk_box_pack_start(GTK_BOX(vbox),
395 create_browser(window, urientry, search, webview), TRUE, TRUE, 0);
396 gtk_box_pack_start(GTK_BOX(vbox),
397 create_toolbar(urientry, search, webview), FALSE, FALSE, 0);
398 gtk_container_add(GTK_CONTAINER(window), vbox);
399
400 if (newwebview)
401 *newwebview = webview;
402
403 return window;
404 }
405
406 int
407 main(int argc, char* argv[])
408 {
409 gtk_init(NULL, NULL);
410 if (!g_thread_supported())
411 g_thread_init(NULL);
412
413 /* Get a default home.html if missing */
414 if (! g_file_test(CONFIG, G_FILE_TEST_EXISTS))
415 system("cp -r /usr/share/tazweb $HOME/.config/tazweb");
416
417 /* Load the start page file or the url in argument */
418 uri =(char*)(argc > 1 ? argv[1] : START);
419 if (argv[1])
420 check_requested_uri();
421
422 mainwindow = create_window(&webview);
423
424 gtk_widget_show_all(mainwindow);
425 webkit_web_view_load_uri(webview, uri);
426 gtk_widget_grab_focus(GTK_WIDGET(webview));
427 gtk_main();
428
429 return 0;
430 }