tazweb view src/main.c @ rev 72

Tiny edits
author Paul Issott <paul@slitaz.org>
date Sat Apr 23 16:13:48 2011 +0100 (2011-04-23)
parents ad9308f7dbc4
children 43428bee91d4
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.
5 *
6 * Copyright (C) 2011 SliTaz GNU/Linux - BSD License
7 * See AUTHORS and LICENSE for detailed information
8 *
9 */
10
11 #include <gtk/gtk.h>
12 #include <webkit/webkit.h>
13
14 #define CONFIG g_strdup_printf ("%s/.config/tazweb", g_get_home_dir ())
15 #define START "file:///usr/share/webhome/index.html"
16
17 /* Loader color - #d66018 #7b705c */
18 static gchar *loader_color = "#351a0a";
19
20 static GtkWidget *main_window, *scrolled, *loader, *toolbar;
21 static GtkWidget *uri_entry, *search_entry;
22 static WebKitWebView* web_view;
23 static WebKitWebFrame* frame;
24 static gdouble load_progress;
25 static guint status_context_id;
26 static gchar* main_title;
27 static gchar* title;
28 static gint progress;
29 static gint loader_width;
30 const gchar* uri;
31
32 /* Create an icon */
33 static GdkPixbuf*
34 create_pixbuf (const gchar* image)
35 {
36 GdkPixbuf *pixbuf;
37 pixbuf = gdk_pixbuf_new_from_file (image, NULL);
38 return pixbuf;
39 }
40
41 /* Can be: http://hg.slitaz.org or hg.slitaz.org */
42 static void
43 check_requested_uri ()
44 {
45 uri = g_strrstr (uri, "://") ? g_strdup (uri)
46 : g_strdup_printf ("http://%s", uri);
47 }
48
49 /* Loader area */
50 static void
51 draw_loader ()
52 {
53 GdkGC* gc = gdk_gc_new (loader->window);
54 GdkColor fg;
55
56 uri = webkit_web_view_get_uri (web_view);
57 loader_width = progress * loader->allocation.width / 100;
58
59 gdk_color_parse (loader_color, &fg);
60 gdk_gc_set_rgb_fg_color (gc, &fg);
61 gdk_draw_rectangle (loader->window,
62 loader->style->bg_gc [GTK_WIDGET_STATE (loader)],
63 TRUE, 0, 0, loader->allocation.width, loader->allocation.height);
64 gdk_draw_rectangle (loader->window, gc, TRUE, 0, 0, loader_width,
65 loader->allocation.height);
66 g_object_unref (gc);
67 }
68
69 /* Loader progress */
70 static gboolean
71 expose_loader_cb (GtkWidget *loader, GdkEventExpose *event, gpointer data)
72 {
73 draw_loader ();
74 return TRUE;
75 }
76
77 /* Update title and loader */
78 static void
79 update ()
80 {
81 title = g_strdup (main_title);
82 if (! main_title)
83 title = g_strdup_printf ("Unknow - TazWeb", main_title);
84 draw_loader ();
85 gtk_window_set_title (GTK_WINDOW (main_window), title);
86 g_free (title);
87 }
88
89 /* Get the page title */
90 static void
91 notify_title_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
92 {
93 main_title = g_strdup (webkit_web_view_get_title (web_view));
94 update ();
95 }
96
97 /* Request progress in window title */
98 static void
99 notify_progress_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
100 {
101 progress = webkit_web_view_get_progress (web_view) * 100;
102 update ();
103 }
104
105 /* Notify loader and url entry */
106 static void
107 notify_load_status_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
108 {
109 switch (webkit_web_view_get_load_status (web_view))
110 {
111 case WEBKIT_LOAD_COMMITTED:
112 break;
113 case WEBKIT_LOAD_FINISHED:
114 progress = 0;
115 update ();
116 break;
117 }
118 frame = webkit_web_view_get_main_frame (web_view);
119 uri = webkit_web_frame_get_uri (frame);
120 if (uri)
121 gtk_entry_set_text (GTK_ENTRY (uri_entry), uri);
122 }
123
124 static void
125 destroy_cb (GtkWidget* widget, GtkWindow* window)
126 {
127 gtk_main_quit ();
128 }
129
130 /* Show page source */
131 static void
132 view_source_cb ()
133 {
134 gboolean source;
135
136 frame = webkit_web_view_get_main_frame (web_view);
137 uri = webkit_web_frame_get_uri (frame);
138 source = webkit_web_view_get_view_source_mode (web_view);
139
140 webkit_web_view_set_view_source_mode(web_view, !source);
141 webkit_web_view_load_uri (web_view, uri);
142 }
143
144 /* URL entry callback function */
145 static void
146 uri_entry_cb (GtkWidget* entry, gpointer data)
147 {
148 uri = gtk_entry_get_text (GTK_ENTRY (entry));
149 g_assert (uri);
150 check_requested_uri ();
151 webkit_web_view_load_uri (web_view, uri);
152 }
153
154 /* Search entry callback function */
155 static void
156 search_entry_cb (GtkWidget* entry, gpointer data)
157 {
158 uri = g_strdup_printf ("http://www.google.com/search?q=%s",
159 gtk_entry_get_text (GTK_ENTRY (entry)));
160 g_assert (uri);
161 webkit_web_view_load_uri (web_view, uri);
162 }
163
164 /* Home button callback function */
165 static void
166 go_home_cb (GtkWidget* widget, gpointer data)
167 {
168 uri = g_strdup_printf ("file://%s/home.html", CONFIG);
169 g_assert (uri);
170 webkit_web_view_load_uri (web_view, uri);
171 }
172
173 /* Navigation button function */
174 static void
175 go_back_cb (GtkWidget* widget, gpointer data)
176 {
177 webkit_web_view_go_back (web_view);
178 }
179
180 static void
181 go_forward_cb (GtkWidget* widget, gpointer data)
182 {
183 webkit_web_view_go_forward (web_view);
184 }
185
186 /* Fullscreen and unfullscreen callback function */
187 static void
188 fullscreen_cb (GtkWindow* window, gpointer data)
189 {
190 GdkWindowState state;
191 state = gdk_window_get_state (gtk_widget_get_window (GTK_WIDGET (main_window)));
192
193 if (state & GDK_WINDOW_STATE_FULLSCREEN)
194 gtk_window_unfullscreen (GTK_WINDOW (main_window));
195 else
196 gtk_window_fullscreen (GTK_WINDOW (main_window));
197 }
198
199 /* TazWeb doc callback function */
200 static void
201 tazweb_doc_cb (GtkWidget* widget, gpointer data)
202 {
203 uri = ("file:///usr/share/doc/tazweb/tazweb.html");
204 g_assert (uri);
205 webkit_web_view_load_uri (web_view, uri);
206 }
207
208 /* Download function */
209 static gboolean
210 download_requested_cb (WebKitWebView *web_view, WebKitDownload *download,
211 gpointer user_data)
212 {
213 uri = webkit_download_get_uri (download);
214 const gchar* buffer;
215 asprintf (&buffer,
216 "xterm -T 'Download' -geom 72x10+0-24 -e 'cd $HOME/Downloads && \
217 wget -c %s; sleep 2' &", uri);
218 system (buffer);
219 }
220
221 /* Zoom out and in callback function */
222 static void
223 zoom_out_cb (GtkWidget *main_window)
224 {
225 webkit_web_view_zoom_out (web_view);
226 }
227
228 static void
229 zoom_in_cb (GtkWidget *main_window)
230 {
231 webkit_web_view_zoom_in (web_view);
232 }
233
234 /* Add items to WebKit contextual menu */
235 static void
236 populate_menu_cb (WebKitWebView *web_view, GtkMenu *menu, gpointer data)
237 {
238 GtkWidget* item;
239
240 /* Separator */
241 item = gtk_separator_menu_item_new ();
242 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
243
244 /* Zoom in */
245 item = gtk_image_menu_item_new_with_label ("Zoom in");
246 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
247 gtk_image_new_from_stock (GTK_STOCK_ZOOM_IN, GTK_ICON_SIZE_MENU));
248 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
249 g_signal_connect (item, "activate", G_CALLBACK (zoom_in_cb), NULL);
250
251 /* Zoom out */
252 item = gtk_image_menu_item_new_with_label ("Zoom out");
253 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
254 gtk_image_new_from_stock (GTK_STOCK_ZOOM_OUT, GTK_ICON_SIZE_MENU));
255 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
256 g_signal_connect (item, "activate", G_CALLBACK (zoom_out_cb), NULL);
257
258 /* Separator */
259 item = gtk_separator_menu_item_new ();
260 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
261
262 /* TazWeb documentation */
263 item = gtk_image_menu_item_new_with_label ("TazWeb manual");
264 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
265 gtk_image_new_from_stock (GTK_STOCK_INFO, GTK_ICON_SIZE_MENU));
266 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
267 g_signal_connect (item, "activate", G_CALLBACK (tazweb_doc_cb), NULL);
268
269 /* View source mode */
270 item = gtk_image_menu_item_new_with_label ("View source mode");
271 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
272 gtk_image_new_from_stock (GTK_STOCK_PROPERTIES, GTK_ICON_SIZE_MENU));
273 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
274 g_signal_connect (item, "activate", G_CALLBACK (view_source_cb), NULL);
275
276 gtk_widget_show_all (GTK_WIDGET (menu));
277 }
278
279 /* Open in a new window from menu */
280 static WebKitWebView*
281 create_web_view_cb (WebKitWebView* web_view, GtkWidget* window)
282 {
283 return WEBKIT_WEB_VIEW (web_view);
284 }
285
286 /* Scrolled window for the web_view */
287 static GtkWidget*
288 create_browser ()
289 {
290 scrolled = gtk_scrolled_window_new (NULL, NULL);
291 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled),
292 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
293
294 web_view = WEBKIT_WEB_VIEW (webkit_web_view_new ());
295 gtk_container_add (GTK_CONTAINER (scrolled), GTK_WIDGET (web_view));
296
297 /* Connect events */
298 g_signal_connect (web_view, "notify::title",
299 G_CALLBACK (notify_title_cb), web_view);
300 g_signal_connect (web_view, "notify::progress",
301 G_CALLBACK (notify_progress_cb), web_view);
302 g_signal_connect (web_view, "notify::load-status",
303 G_CALLBACK (notify_load_status_cb), web_view);
304 g_signal_connect (web_view, "download-requested",
305 G_CALLBACK (download_requested_cb), NULL);
306 g_signal_connect (web_view, "create-web-view",
307 G_CALLBACK (create_web_view_cb), web_view);
308
309 /* Connect WebKit contextual menu items */
310 g_object_connect (G_OBJECT (web_view), "signal::populate-popup",
311 G_CALLBACK (populate_menu_cb), web_view, NULL);
312
313 return scrolled;
314 }
315
316 /* Loader area */
317 static GtkWidget*
318 create_loader ()
319 {
320 loader = gtk_drawing_area_new ();
321 gtk_widget_set_size_request (loader, 0, 2);
322 g_signal_connect (G_OBJECT (loader), "expose_event",
323 G_CALLBACK (expose_loader_cb), NULL);
324
325 return loader;
326 }
327
328 static GtkWidget*
329 create_toolbar ()
330 {
331 GtkToolItem* item;
332 PangoFontDescription *font;
333 GdkColor bg;
334
335 toolbar = gtk_toolbar_new ();
336
337 gtk_toolbar_set_orientation (GTK_TOOLBAR (toolbar),
338 GTK_ORIENTATION_HORIZONTAL);
339 gtk_toolbar_set_style (GTK_TOOLBAR (toolbar),
340 GTK_TOOLBAR_BOTH_HORIZ);
341
342 gdk_color_parse ("#f1efeb", &bg);
343 gtk_widget_modify_bg (toolbar, GTK_STATE_NORMAL, &bg);
344
345 /* The back button */
346 item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_BACK);
347 g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_back_cb), NULL);
348 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
349
350 /* The forward button */
351 item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_FORWARD);
352 g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_forward_cb), NULL);
353 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
354
355 /* Home button */
356 item = gtk_tool_button_new_from_stock (GTK_STOCK_HOME);
357 g_signal_connect (G_OBJECT (item), "clicked",
358 G_CALLBACK (go_home_cb), NULL);
359 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
360
361 /* URL entry */
362 item = gtk_tool_item_new ();
363 gtk_tool_item_set_expand (item, TRUE);
364
365 uri_entry = gtk_entry_new ();
366 gtk_widget_modify_base ( GTK_WIDGET (uri_entry),
367 GTK_STATE_NORMAL, &bg);
368 gtk_entry_set_inner_border (GTK_ENTRY (uri_entry), NULL);
369 gtk_entry_set_has_frame (GTK_ENTRY (uri_entry), FALSE);
370
371 gtk_container_add (GTK_CONTAINER (item), uri_entry);
372 g_signal_connect (G_OBJECT (uri_entry), "activate",
373 G_CALLBACK (uri_entry_cb), NULL);
374 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
375
376 /* Separator */
377 item = gtk_separator_tool_item_new ();
378 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
379
380 /* Search entry */
381 item = gtk_tool_item_new ();
382 search_entry = gtk_entry_new ();
383 gtk_widget_set_size_request (search_entry, 150, 20);
384 gtk_container_add (GTK_CONTAINER (item), search_entry);
385 g_signal_connect (G_OBJECT (search_entry), "activate",
386 G_CALLBACK (search_entry_cb), NULL);
387 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
388
389 /* The Fullscreen button */
390 item = gtk_tool_button_new_from_stock (GTK_STOCK_FULLSCREEN);
391 g_signal_connect (G_OBJECT (item), "clicked",
392 G_CALLBACK (fullscreen_cb), NULL);
393 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
394
395 return toolbar;
396 }
397
398 /* Main window */
399 static GtkWidget*
400 create_window ()
401 {
402 GtkWidget* window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
403 GtkWidget* vbox = gtk_vbox_new (FALSE, 0);
404
405 /* Default TazWeb window size ratio to 3/4 --> 720, 540*/
406 gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
407 gtk_window_set_icon (GTK_WINDOW (window),
408 create_pixbuf ("/usr/share/pixmaps/tazweb.png"));
409 gtk_widget_set_name (window, "TazWeb");
410 g_signal_connect (window, "destroy", G_CALLBACK (destroy_cb), NULL);
411
412 /* Pack box and container */
413 gtk_box_pack_start (GTK_BOX (vbox), create_browser (), TRUE, TRUE, 0);
414 gtk_container_add (GTK_CONTAINER (vbox), create_loader());
415 gtk_box_set_child_packing (GTK_BOX (vbox), loader,
416 FALSE, FALSE, 0, GTK_PACK_START);
417 gtk_box_pack_start (GTK_BOX (vbox), create_toolbar (), FALSE, FALSE, 0);
418 gtk_container_add (GTK_CONTAINER (window), vbox);
419
420 return window;
421 }
422
423 int
424 main (int argc, char* argv[])
425 {
426 gtk_init (&argc, &argv);
427 if (!g_thread_supported ())
428 g_thread_init (NULL);
429
430 /* Get a default home.html if missing */
431 if (! g_file_test (CONFIG, G_FILE_TEST_EXISTS))
432 system ("cp -r /usr/share/tazweb $HOME/.config/tazweb");
433
434 /* Load the start page file or the url in argument */
435 uri = (char*) (argc > 1 ? argv[1] : START);
436 if (argv[1])
437 check_requested_uri ();
438
439 main_window = create_window ();
440 gtk_widget_show_all (main_window);
441 webkit_web_view_load_uri (web_view, uri);
442 gtk_widget_grab_focus (GTK_WIDGET (web_view));
443 gtk_main ();
444 return 0;
445 }