tazweb view src/main.c @ rev 75

No space before function(argument)
author Christophe Lincoln <pankso@slitaz.org>
date Sun Apr 24 00:12:47 2011 +0200 (2011-04-24)
parents 22ccdae2c559
children dd5c73a60acc
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 /* Colors(Loader: #d66018 #7b705c) */
19 static gchar *loadfg = "#351a0a";
20 static gchar *toolbarbg = "#f1efeb";
21
22 static gchar* pagetitle;
23 static gchar* title;
24 static GtkWidget *mainwindow, *scrolled, *loader, *toolbar;
25 static GtkWidget *urientry, *search;
26 static WebKitWebView* webview;
27 static WebKitWebFrame* frame;
28 static gint progress;
29 const gchar* uri;
30
31 /* Create an icon */
32 static GdkPixbuf*
33 create_pixbuf(const gchar* image)
34 {
35 GdkPixbuf *pixbuf;
36 pixbuf = gdk_pixbuf_new_from_file(image, NULL);
37 return pixbuf;
38 }
39
40 /* Can be: http://hg.slitaz.org or hg.slitaz.org */
41 static void
42 check_requested_uri()
43 {
44 uri = g_strrstr(uri, "://") ? g_strdup(uri)
45 : g_strdup_printf("http://%s", uri);
46 }
47
48 /* Loader area */
49 static void
50 draw_loader()
51 {
52 GdkGC* gc;
53 GdkColor fg;
54 gint width;
55
56 gc = gdk_gc_new(loader->window);
57 width = progress * loader->allocation.width / 100;
58
59 gdk_color_parse(loadfg, &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, 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(pagetitle);
82 if(! pagetitle)
83 title = g_strdup_printf("Unknow - TazWeb", pagetitle);
84 draw_loader();
85 gtk_window_set_title(GTK_WINDOW(mainwindow), title);
86 g_free(title);
87 }
88
89 /* Get the page title */
90 static void
91 notify_title_cb(WebKitWebView* webview, GParamSpec* pspec, gpointer data)
92 {
93 pagetitle = g_strdup(webkit_web_view_get_title(webview));
94 update();
95 }
96
97 /* Request progress in window title */
98 static void
99 notify_progress_cb(WebKitWebView* webview, GParamSpec* pspec, gpointer data)
100 {
101 progress = webkit_web_view_get_progress(webview) * 100;
102 update();
103 }
104
105 /* Notify loader and url entry */
106 static void
107 notify_load_status_cb(WebKitWebView* webview, GParamSpec* pspec, gpointer data)
108 {
109 switch(webkit_web_view_get_load_status(webview))
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(webview);
119 uri = webkit_web_frame_get_uri(frame);
120 if (uri)
121 gtk_entry_set_text(GTK_ENTRY(urientry), 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(webview);
137 uri = webkit_web_frame_get_uri(frame);
138 source = webkit_web_view_get_view_source_mode(webview);
139
140 webkit_web_view_set_view_source_mode(webview, !source);
141 webkit_web_view_load_uri(webview, 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(webview, 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(webview, 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(webview, 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(webview);
178 }
179
180 static void
181 go_forward_cb(GtkWidget* widget, gpointer data)
182 {
183 webkit_web_view_go_forward(webview);
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(mainwindow)));
192
193 if(state & GDK_WINDOW_STATE_FULLSCREEN)
194 gtk_window_unfullscreen(GTK_WINDOW(mainwindow));
195 else
196 gtk_window_fullscreen(GTK_WINDOW(mainwindow));
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(webview, uri);
206 }
207
208 /* Download function */
209 static gboolean
210 download_requested_cb(WebKitWebView *webview, 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 *mainwindow)
224 {
225 webkit_web_view_zoom_out(webview);
226 }
227
228 static void
229 zoom_in_cb(GtkWidget *mainwindow)
230 {
231 webkit_web_view_zoom_in(webview);
232 }
233
234 /* Add items to WebKit contextual menu */
235 static void
236 populate_menu_cb(WebKitWebView *webview, 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* webview, GtkWidget* window)
282 {
283 return WEBKIT_WEB_VIEW(webview);
284 }
285
286 /* Scrolled window for the webview */
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 webview = WEBKIT_WEB_VIEW(webkit_web_view_new());
295 gtk_container_add(GTK_CONTAINER(scrolled), GTK_WIDGET(webview));
296
297 /* Connect WebKit events */
298 g_signal_connect(webview, "notify::title",
299 G_CALLBACK(notify_title_cb), webview);
300 g_signal_connect(webview, "notify::progress",
301 G_CALLBACK(notify_progress_cb), webview);
302 g_signal_connect(webview, "notify::load-status",
303 G_CALLBACK(notify_load_status_cb), webview);
304 g_signal_connect(webview, "download-requested",
305 G_CALLBACK(download_requested_cb), NULL);
306 g_signal_connect(webview, "create-web-view",
307 G_CALLBACK(create_web_view_cb), webview);
308
309 /* Connect WebKit contextual menu items */
310 g_object_connect(G_OBJECT(webview), "signal::populate-popup",
311 G_CALLBACK(populate_menu_cb), webview, 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 GdkColor bg;
333
334 toolbar = gtk_toolbar_new();
335 //gtk_widget_set_size_request(toolbar, 0, 24);
336 gtk_toolbar_set_orientation(GTK_TOOLBAR(toolbar),
337 GTK_ORIENTATION_HORIZONTAL);
338 gtk_toolbar_set_style(GTK_TOOLBAR(toolbar),
339 GTK_TOOLBAR_BOTH_HORIZ);
340 gdk_color_parse(toolbarbg, &bg);
341 gtk_widget_modify_bg(toolbar, GTK_STATE_NORMAL, &bg);
342
343 /* The back button */
344 item = gtk_tool_button_new_from_stock(GTK_STOCK_GO_BACK);
345 g_signal_connect(G_OBJECT(item), "clicked", G_CALLBACK(go_back_cb), NULL);
346 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
347
348 /* The forward button */
349 item = gtk_tool_button_new_from_stock(GTK_STOCK_GO_FORWARD);
350 g_signal_connect(G_OBJECT(item), "clicked", G_CALLBACK(go_forward_cb), NULL);
351 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
352
353 /* Home button */
354 item = gtk_tool_button_new_from_stock(GTK_STOCK_HOME);
355 g_signal_connect(G_OBJECT(item), "clicked",
356 G_CALLBACK(go_home_cb), NULL);
357 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
358
359 /* URL entry */
360 item = gtk_tool_item_new();
361 gtk_tool_item_set_expand(item, TRUE);
362
363 urientry = gtk_entry_new();
364 gtk_widget_modify_base( GTK_WIDGET(urientry),
365 GTK_STATE_NORMAL, &bg);
366 gtk_entry_set_inner_border(GTK_ENTRY(urientry), NULL);
367 gtk_entry_set_has_frame(GTK_ENTRY(urientry), FALSE);
368
369 gtk_container_add(GTK_CONTAINER(item), urientry);
370 g_signal_connect(G_OBJECT(urientry), "activate",
371 G_CALLBACK(uri_entry_cb), NULL);
372 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
373
374 /* Separator */
375 item = gtk_separator_tool_item_new();
376 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
377
378 /* Search entry */
379 item = gtk_tool_item_new();
380 search = gtk_entry_new();
381 gtk_widget_set_size_request(search, 150, 20);
382 gtk_container_add(GTK_CONTAINER(item), search);
383 g_signal_connect(G_OBJECT(search), "activate",
384 G_CALLBACK(search_entry_cb), NULL);
385 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
386
387 /* The Fullscreen button */
388 item = gtk_tool_button_new_from_stock(GTK_STOCK_FULLSCREEN);
389 g_signal_connect(G_OBJECT(item), "clicked",
390 G_CALLBACK(fullscreen_cb), NULL);
391 gtk_toolbar_insert(GTK_TOOLBAR(toolbar), item, -1);
392
393 return toolbar;
394 }
395
396 /* Main window */
397 static GtkWidget*
398 create_window()
399 {
400 GtkWidget* window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
401 GtkWidget* vbox = gtk_vbox_new(FALSE, 0);
402
403 /* Default TazWeb window size ratio to 3/4 --> 720, 540 */
404 gtk_window_set_default_size(GTK_WINDOW(window), 800, 600);
405 gtk_window_set_icon(GTK_WINDOW(window),
406 create_pixbuf("/usr/share/pixmaps/tazweb.png"));
407 gtk_widget_set_name(window, "TazWeb");
408 g_signal_connect(window, "destroy", G_CALLBACK(destroy_cb), NULL);
409
410 /* Pack box and container */
411 gtk_box_pack_start(GTK_BOX(vbox), create_browser(), TRUE, TRUE, 0);
412 gtk_container_add(GTK_CONTAINER(vbox), create_loader());
413 gtk_box_set_child_packing(GTK_BOX(vbox), loader,
414 FALSE, FALSE, 0, GTK_PACK_START);
415 gtk_box_pack_start(GTK_BOX(vbox), create_toolbar(), FALSE, FALSE, 0);
416 gtk_container_add(GTK_CONTAINER(window), vbox);
417
418 return window;
419 }
420
421 int
422 main(int argc, char* argv[])
423 {
424 gtk_init(&argc, &argv);
425 if (!g_thread_supported())
426 g_thread_init(NULL);
427
428 /* Get a default home.html if missing */
429 if (! g_file_test(CONFIG, G_FILE_TEST_EXISTS))
430 system("cp -r /usr/share/tazweb $HOME/.config/tazweb");
431
432 /* Load the start page file or the url in argument */
433 uri =(char*)(argc > 1 ? argv[1] : START);
434 if (argv[1])
435 check_requested_uri();
436
437 mainwindow = create_window();
438 gtk_widget_show_all(mainwindow);
439
440 webkit_web_view_load_uri(webview, uri);
441 gtk_widget_grab_focus(GTK_WIDGET(webview));
442
443 gtk_main();
444
445 return 0;
446 }