path: root/uzbl.c

// Original code taken from the example webkit-gtk+ application. see notice below.
// Modified code is licensed under the GPL 3.  See LICENSE file.


/*
 * Copyright (C) 2006, 2007 Apple Inc.
 * Copyright (C) 2007 Alp Toker <alp@atoker.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <webkit/webkit.h>
#include <pthread.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>

static GtkWidget* main_window;
static GtkWidget* uri_entry;
static GtkWidget* mainbar;
static WebKitWebView* web_view;
static gchar* main_title;
static gchar* history_file;
static gchar* fifodir   = NULL;
static char fifopath[64];
static gint load_progress;
static guint status_context_id;
static Window xwin = NULL;
static gchar* uri = NULL;

static gboolean verbose = FALSE;


static GOptionEntry entries[] =
{
  { "uri",     'u', 0, G_OPTION_ARG_STRING, &uri,     "Uri to load", NULL },
  { "verbose", 'v', 0, G_OPTION_ARG_NONE,   &verbose, "Be verbose",  NULL },
  { NULL }
};

struct command
{
  char command[256];
  void (*func)(WebKitWebView*);
};

static struct command commands[256];
static int            numcmds = 0;

static void
parse_command(const char*);


static void
parse_command(const char *command)
{
  int  i    = 0;
  bool done = false;
  char *cmdstr;
  void (*func)(WebKitWebView*);

  strcpy(cmdstr, command);

  done = false;
  printf("Checking commands\n");
  for (i = 0; i < numcmds && ! done; i++)
    {
      if (!strncmp (cmdstr, commands[i].command, strlen (commands[i].command)))
        {
          func = commands[i].func;
          done = true;
        }
    }

  printf("Command identified as \"%s\"\n", cmdstr);

  if (done)
    {
      func (web_view);
    }
  else
    {
      if (!strncmp ("http://", command, 7))
        {
          printf ("Loading URI \"%s\"\n", command);
          strcpy(uri, command);
          webkit_web_view_load_uri (web_view, uri);
        }
    }
}

static void
*control_fifo()
{
  if (fifodir)
    {
      sprintf (fifopath, "%s/uzbl_%d", fifodir, getpid ());
    }
  else
    {
      sprintf (fifopath, "/tmp/uzbl_%d", getpid ());
    }

  if (mkfifo (fifopath, 0666) == -1)
    {
      printf ("Possible error creating fifo\n");
    }

    printf ("Opened control fifo in %s\n", fifopath);

    while (true)
      {
        FILE *fifo = fopen(fifopath, "r");
        if (!fifo)
          {
            printf("Could not open %s for reading\n", fifopath);
            return NULL;
          }
        
        char buffer[256];
        memset (buffer, 0, sizeof (buffer));
        while (!feof (fifo) && fgets (buffer, sizeof (buffer), fifo))
          {
            if (strcmp (buffer, "\n"))
              {
                buffer[strlen (buffer) - 1] = '\0'; // Remove newline
                parse_command (buffer);
              }
          }
      }
    
    return NULL;
}

static void
add_command (char* cmdstr, void* function)
{
  strncpy (commands[numcmds].command, cmdstr, strlen (cmdstr));
  commands[numcmds].func = function;
  numcmds++;
}

static void
setup_commands ()
{
  // This func. is nice but currently it cannot be used for functions that require arguments or return data. --sentientswitch
  // TODO: reload, home
  add_command("back",     &webkit_web_view_go_back);
  add_command("forward",  &webkit_web_view_go_forward);
  add_command("refresh",  &webkit_web_view_reload); //Buggy
  add_command("stop",     &webkit_web_view_stop_loading);
  add_command("zoom_in",  &webkit_web_view_zoom_in); //Can crash (when max zoom reached?).
  add_command("zoom_out", &webkit_web_view_zoom_out); //Crashes as zoom +
  //add_command("get uri", &webkit_web_view_get_uri);
}

static void
setup_threading ()
{
  pthread_t control_thread;
  pthread_create(&control_thread, NULL, control_fifo, NULL);
}


static void
log_history_cb () {
    FILE * output_file = fopen(history_file, "a");
    if (output_file == NULL) {
       fprintf(stderr, "Cannot open %s for logging\n", history_file);
    } else {
        time_t rawtime;
        struct tm * timeinfo;
        char buffer [80];
        time ( &rawtime );
        timeinfo = localtime ( &rawtime );
        strftime (buffer,80,"%Y-%m-%d %H:%M:%S",timeinfo);

        fprintf(output_file, "%s %s\n",buffer, uri);
        fclose(output_file);
    }
}


static void
activate_uri_entry_cb (GtkWidget* entry, gpointer data)
{
    uri = gtk_entry_get_text (GTK_ENTRY (entry));
    g_assert (uri);
    webkit_web_view_load_uri (web_view, uri);
}

static void
update_title (GtkWindow* window)
{
    GString* string = g_string_new (main_title);
    g_string_append (string, " - Uzbl browser");
    if (load_progress < 100)
        g_string_append_printf (string, " (%d%%)", load_progress);
    gchar* title = g_string_free (string, FALSE);
    gtk_window_set_title (window, title);
    g_free (title);
}

static void
link_hover_cb (WebKitWebView* page, const gchar* title, const gchar* link, gpointer data)
{
    /* underflow is allowed */
    //gtk_statusbar_pop (main_statusbar, status_context_id);
    //if (link)
    //    gtk_statusbar_push (main_statusbar, status_context_id, link);
    //TODO implementation roadmap pending..
}

static void
title_change_cb (WebKitWebView* web_view, WebKitWebFrame* web_frame, const gchar* title, gpointer data)
{
    if (main_title)
        g_free (main_title);
    main_title = g_strdup (title);
    update_title (GTK_WINDOW (main_window));
}

static void
progress_change_cb (WebKitWebView* page, gint progress, gpointer data)
{
    load_progress = progress;
    update_title (GTK_WINDOW (main_window));
}

static void
load_commit_cb (WebKitWebView* page, WebKitWebFrame* frame, gpointer data)
{
    const gchar* uri = webkit_web_frame_get_uri(frame);
    if (uri)
        gtk_entry_set_text (GTK_ENTRY (uri_entry), uri);
}

static void
destroy_cb (GtkWidget* widget, gpointer data)
{
    gtk_main_quit ();
}

static void
go_back_cb (GtkWidget* widget, gpointer data)
{
    webkit_web_view_go_back (web_view);
}

static void
go_forward_cb (GtkWidget* widget, gpointer data)
{
    webkit_web_view_go_forward (web_view);
}

static GtkWidget*
create_browser ()
{
    GtkWidget* scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window), GTK_POLICY_NEVER, GTK_POLICY_NEVER); //todo: some sort of display of position/total length. like what emacs does

    web_view = WEBKIT_WEB_VIEW (webkit_web_view_new ());
    gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (web_view));

    g_signal_connect (G_OBJECT (web_view), "title-changed", G_CALLBACK (title_change_cb), web_view);
    g_signal_connect (G_OBJECT (web_view), "load-progress-changed", G_CALLBACK (progress_change_cb), web_view);
    g_signal_connect (G_OBJECT (web_view), "load-committed", G_CALLBACK (load_commit_cb), web_view);
    g_signal_connect (G_OBJECT (web_view), "load-committed", G_CALLBACK (log_history_cb), web_view);
    g_signal_connect (G_OBJECT (web_view), "hovering-over-link", G_CALLBACK (link_hover_cb), web_view);

    return scrolled_window;
}

static GtkWidget*
create_mainbar ()
{
    mainbar = gtk_hbox_new(FALSE, 0);
    uri_entry = gtk_entry_new();
    gtk_entry_set_width_chars(GTK_ENTRY(uri_entry), 40);
    gtk_entry_set_text(GTK_ENTRY(uri_entry), "http://");
    gtk_box_pack_start (GTK_BOX (mainbar), uri_entry, FALSE,TRUE , 0);
    gtk_signal_connect_object (GTK_OBJECT (uri_entry), "activate", GTK_SIGNAL_FUNC (activate_uri_entry_cb), GTK_OBJECT (uri_entry));

    //status_context_id = gtk_statusbar_get_context_id (main_statusbar, "Link Hover");

    return mainbar;
}

static
GtkWidget* create_window ()
{
    GtkWidget* window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
    gtk_widget_set_name (window, "Uzbl browser");
    g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK (destroy_cb), NULL);

    return window;
}

int main (int argc, char* argv[])
{
    gtk_init (&argc, &argv);
    if (!g_thread_supported ())
        g_thread_init (NULL);

    GKeyFile* config = g_key_file_new ();
    gboolean res = g_key_file_load_from_file (config, "./sampleconfig", G_KEY_FILE_NONE, NULL); //TODO: pass config file as argument
    if(res) {
        printf("config loaded\n");
    } else {
        fprintf(stderr,"config loading failed\n"); //TODO: exit codes with gtk? 
    }
    history_file = g_key_file_get_value (config, "behavior", "history_file", NULL);
    if(history_file) {
        printf("setting history file to: %s\n",history_file);
    } else {
        printf("history logging disabled\n");
    }

    GtkWidget* vbox = gtk_vbox_new (FALSE, 0);
    gtk_box_pack_start (GTK_BOX (vbox), create_mainbar (), FALSE, TRUE, 0);
    gtk_box_pack_start (GTK_BOX (vbox), create_browser (), TRUE, TRUE, 0);



    main_window = create_window ();
    gtk_container_add (GTK_CONTAINER (main_window), vbox);
  GError *error = NULL;

  GOptionContext* context = g_option_context_new ("- some stuff here maybe someday");
  g_option_context_add_main_entries (context, entries, NULL);
  g_option_context_add_group (context, gtk_get_option_group (TRUE));
  g_option_context_parse (context, &argc, &argv, &error);


    webkit_web_view_load_uri (web_view, uri);

    gtk_widget_grab_focus (GTK_WIDGET (web_view));
    gtk_widget_show_all (main_window);
    xwin = GDK_WINDOW_XID (GTK_WIDGET (main_window)->window);
    printf("My X window id is %i\n",(int) xwin);


    setup_commands ();
    setup_threading ();

    gtk_main ();

    unlink (fifopath);
    return 0;
}