main.c

   1 /*
   2  * Copyright (C) 2006, 2007 Apple Inc.
   3  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <gtk/gtk.h>
  28 #include <webkit/webkit.h>
  29
  30 static GtkWidget* main_window;
  31 static GtkWidget* uri_entry;
  32 static GtkStatusbar* main_statusbar;
  33 static WebKitWebView* web_view;
  34 static gchar* main_title;
  35 static gdouble load_progress;
  36 static guint status_context_id;
  37
  38 static void
  39 activate_uri_entry_cb (GtkWidget* entry, gpointer data)
  40 {
  41     const gchar* uri = gtk_entry_get_text (GTK_ENTRY (entry));
  42     g_assert (uri);
  43     webkit_web_view_load_uri (web_view, uri);
  44 }
  45
  46 static void
  47 update_title (GtkWindow* window)
  48 {
  49     GString* string = g_string_new (main_title);
  50     g_string_append (string, " - WebKit Launcher");
  51     if (load_progress < 100)
  52         g_string_append_printf (string, " (%f%%)", load_progress);
  53     gchar* title = g_string_free (string, FALSE);
  54     gtk_window_set_title (window, title);
  55     g_free (title);
  56 }
  57
  58 static void
  59 link_hover_cb (WebKitWebView* page, const gchar* title, const gchar* link, gpointer data)
  60 {
  61     /* underflow is allowed */
  62     gtk_statusbar_pop (main_statusbar, status_context_id);
  63     if (link)
  64         gtk_statusbar_push (main_statusbar, status_context_id, link);
  65 }
  66
  67 static void
  68 title_change_cb (WebKitWebView* web_view, WebKitWebFrame* web_frame, const gchar* title, gpointer data)
  69 {
  70     if (main_title)
  71         g_free (main_title);
  72     main_title = g_strdup (title);
  73     update_title (GTK_WINDOW (main_window));
  74 }
  75
  76 static void
  77 notify_load_status_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
  78 {
  79     if (webkit_web_view_get_load_status (web_view) == WEBKIT_LOAD_COMMITTED) {
  80         WebKitWebFrame* frame = webkit_web_view_get_main_frame (web_view);
  81         const gchar* uri = webkit_web_frame_get_uri (frame);
  82         if (uri)
  83             gtk_entry_set_text (GTK_ENTRY (uri_entry), uri);
  84     }
  85 }
  86
  87 static void
  88 notify_progress_cb (WebKitWebView* web_view, GParamSpec* pspec, gpointer data)
  89 {
  90     load_progress = webkit_web_view_get_progress (web_view) * 100;
  91     update_title (GTK_WINDOW (main_window));
  92 }
  93
  94 static void
  95 destroy_cb (GtkWidget* widget, gpointer data)
  96 {
  97     gtk_main_quit ();
  98 }
  99
 100 static void
 101 go_back_cb (GtkWidget* widget, gpointer data)
 102 {
 103     webkit_web_view_go_back (web_view);
 104 }
 105
 106 static void
 107 go_forward_cb (GtkWidget* widget, gpointer data)
 108 {
 109     webkit_web_view_go_forward (web_view);
 110 }
 111
 112 static GtkWidget*
 113 create_browser ()
 114 {
 115     GtkWidget* scrolled_window = gtk_scrolled_window_new (NULL, NULL);
 116     gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 117
 118     web_view = WEBKIT_WEB_VIEW (webkit_web_view_new ());
 119     gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (web_view));
 120
 121     g_signal_connect (web_view, "title-changed", G_CALLBACK (title_change_cb), web_view);
 122     g_signal_connect (web_view, "notify::load-status", G_CALLBACK (notify_load_status_cb), web_view);
 123     g_signal_connect (web_view, "notify::progress", G_CALLBACK (notify_progress_cb), web_view);
 124     g_signal_connect (web_view, "hovering-over-link", G_CALLBACK (link_hover_cb), web_view);
 125
 126     return scrolled_window;
 127 }
 128
 129 static GtkWidget*
 130 create_statusbar ()
 131 {
 132     main_statusbar = GTK_STATUSBAR (gtk_statusbar_new ());
 133     status_context_id = gtk_statusbar_get_context_id (main_statusbar, "Link Hover");
 134
 135     return (GtkWidget*)main_statusbar;
 136 }
 137
 138 static GtkWidget*
 139 create_toolbar ()
 140 {
 141     GtkWidget* toolbar = gtk_toolbar_new ();
 142
 143     /*
 144     gtk_orientable_set_orientation (GTK_ORIENTABLE (toolbar), GTK_ORIENTATION_HORIZONTAL);
 145     */
 146     gtk_toolbar_set_style (GTK_TOOLBAR (toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 147
 148     GtkToolItem* item;
 149
 150     /* the back button */
 151     item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_BACK);
 152     g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_back_cb), NULL);
 153     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
 154
 155     /* The forward button */
 156     item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_FORWARD);
 157     g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_forward_cb), NULL);
 158     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
 159
 160     /* The URL entry */
 161     item = gtk_tool_item_new ();
 162     gtk_tool_item_set_expand (item, TRUE);
 163     uri_entry = gtk_entry_new ();
 164     gtk_container_add (GTK_CONTAINER (item), uri_entry);
 165     g_signal_connect (G_OBJECT (uri_entry), "activate", G_CALLBACK (activate_uri_entry_cb), NULL);
 166     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
 167
 168     /* The go button */
 169     item = gtk_tool_button_new_from_stock (GTK_STOCK_OK);
 170     g_signal_connect_swapped (G_OBJECT (item), "clicked", G_CALLBACK (activate_uri_entry_cb), (gpointer)uri_entry);
 171     gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
 172
 173     return toolbar;
 174 }
 175
 176 static GtkWidget*
 177 create_window ()
 178 {
 179     GtkWidget* window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 180     gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
 181     gtk_widget_set_name (window, "GtkLauncher");
 182     g_signal_connect (window, "destroy", G_CALLBACK (destroy_cb), NULL);
 183
 184     return window;
 185 }
 186
 187 int
 188 main (int argc, char* argv[])
 189 {
 190     gtk_init (&argc, &argv);
 191     if (!g_thread_supported ())
 192         g_thread_init (NULL);
 193
 194     GtkWidget* vbox = gtk_vbox_new (FALSE, 0);
 195     gtk_box_pack_start (GTK_BOX (vbox), create_toolbar (), FALSE, FALSE, 0);
 196     gtk_box_pack_start (GTK_BOX (vbox), create_browser (), TRUE, TRUE, 0);
 197     gtk_box_pack_start (GTK_BOX (vbox), create_statusbar (), FALSE, FALSE, 0);
 198
 199     main_window = create_window ();
 200     gtk_container_add (GTK_CONTAINER (main_window), vbox);
 201
 202     gchar* uri = (gchar*) (argc > 1 ? argv[1] : "http://www.google.com/");
 203     webkit_web_view_load_uri (web_view, uri);
 204
 205     gtk_widget_grab_focus (GTK_WIDGET (web_view));
 206     gtk_widget_show_all (main_window);
 207     gtk_main ();
 208
 209     return 0;
 210 }