modules/command-line.js

   1 /**
   2  * (C) Copyright 2007 John J. Foerch
   3  * (C) Copyright 2007-2008 Jeremy Maitin-Shepard
   4  *
   5  * Use, modification, and distribution are subject to the terms specified in the
   6  * COPYING file.
   7 **/
   8
   9 var command_line_handlers = [];
  10
  11 define_variable("url_remoting_fn", load_url_in_new_window);
  12
  13 /*
  14  * load_url_in_new_window is a function intended for use as
  15  * a value of `url_remoting_fn'.  Every url given on the
  16  * command line will be loaded in a new window.
  17  */
  18 function load_url_in_new_window(url, ctx) {
  19     make_window(buffer_creator(content_buffer, $load = url, $configuration = ctx.config));
  20 }
  21
  22 /*
  23  * load_url_in_new_buffer is a function intended for use as
  24  * a value of `url_remoting_fn'.  Every url given on the
  25  * command line will be loaded in a new buffer in the most
  26  * recently used window, or a new window if none exist.
  27  */
  28 function load_url_in_new_buffer(url, ctx) {
  29     create_buffer_in_current_window(buffer_creator(content_buffer, $load = url, $configuration = ctx.config),
  30                                     OPEN_NEW_BUFFER, true /* focus the new window */);
  31 }
  32
  33 /*
  34  * load_url_in_current_buffer is a function intended for use
  35  * as a value of `url_remoting_fn'.  Every url given on the
  36  * command line will be loaded in the current buffer of the
  37  * most recently used window.  This makes it useful for only
  38  * one url at a time.  When there are no conkeror windows
  39  * open, the url will be loaded in a new window.
  40  */
  41 function  load_url_in_current_buffer(url,ctx) {
  42     var win;
  43     if (win = get_recent_conkeror_window()) {
  44         open_in_browser(win.buffers.current, OPEN_CURRENT_BUFFER, url);
  45     } else {
  46         load_url_in_new_window(url, ctx);
  47     }
  48 }
  49
  50 function command_line_handler(name, suppress_default, handler)
  51 {
  52     command_line_handlers[name] = { suppress_default: suppress_default, func: handler };
  53 }
  54
  55 function command_line_param_handler(name, suppress_default, handler)
  56 {
  57     command_line_handlers[name] = { suppress_default: suppress_default,
  58                                     param: true,
  59                                     func: handler };
  60 }
  61
  62 command_line_handler("batch", true);
  63 command_line_param_handler("e", true, function (expr, ctx) {
  64         eval(expr);
  65     });
  66
  67 command_line_param_handler("E", false, function (expr, ctx) {});
  68
  69 command_line_param_handler("chrome", true, function (uri, ctx) {
  70         try {
  71             make_chrome_window(uri);
  72         } catch (e) { dump_error(e); }
  73     });
  74 command_line_param_handler("q", false, function () {
  75         dumpln ("w: -q may only be used as the first argument.");
  76     });
  77
  78 command_line_param_handler("cwd", false, function (dir, ctx) {
  79         if (ctx.config == null)
  80             ctx.config = {};
  81         ctx.config.cwd = dir;
  82     });
  83
  84 command_line_param_handler("f", true, function (command) {
  85         var ctx = {
  86             window: window_watcher.activeWindow
  87         };
  88        call_interactively(ctx, command);
  89     });
  90
  91 function handle_command_line(cmdline)
  92 {
  93     try {
  94         var suppress_default = false;
  95         var suppress_rc = false;
  96
  97         var i = 0;
  98
  99         /* -q must be the first argument, if it is given */
 100         if (cmdline.length > 0 && cmdline.getArgument(0) == "-q")
 101         {
 102             suppress_rc = true;
 103             i++;
 104         }
 105
 106         var initial_launch = (cmdline.state == cmdline.STATE_INITIAL_LAUNCH);
 107
 108         if (initial_launch) {
 109             let j = i;
 110             while (j + 1 < cmdline.length) {
 111                 if (cmdline.getArgument(j) == "-E") {
 112                     eval(cmdline.getArgument(j+1));
 113                     cmdline.removeArguments(j, j+1);
 114                 } else
 115                     ++j;
 116             }
 117
 118             let load_default_modules = get_pref("conkeror.loadDefaultModules");
 119             let load_mods = new RegExp("^(" + get_pref("conkeror.loadModules") + ")$");
 120             try {
 121                 let branch = preferences.getBranch("conkeror.load.");
 122                 for each (let m in branch.getChildList("", {})) {
 123                     let val;
 124                     try {
 125                         val = branch.getIntPref(m);
 126                     } catch (e) {
 127                         dumpln("Error: Preference 'conkeror.load." + m + "' has non-integer value.");
 128                     }
 129                     if ((val > 0 && (load_default_modules > 0 ||
 130                                      ((load_default_modules == 0) && branch.prefHasUserValue(m)))) ||
 131                         (val >= 0 && load_mods.test(m)))
 132                         require(m + ".js");
 133                 }
 134             } catch (e) {dump_error(e);}
 135         }
 136
 137         if (! suppress_rc && initial_launch)
 138         {
 139             try {
 140                 load_rc ();
 141             } catch (e) { dump (e + "\n"); }
 142         } else if (suppress_rc && ! initial_launch) {
 143             dumpln ("w: attempt to suppress load_rc in remote invocation");
 144         }
 145         var ctx = {}; // command-line processing context
 146
 147         for (; i < cmdline.length; ++i)
 148         {
 149             var arg = cmdline.getArgument(i);
 150             if (arg[0] == '-') {
 151                 var arg1 = arg.substring(1);
 152                 if (arg1 in command_line_handlers) {
 153                     var handler = command_line_handlers[arg1];
 154                     if (handler.suppress_default)
 155                         suppress_default = true;
 156                     if (handler.func) {
 157                         if (handler.param) {
 158                             i++; // increment the argument counter to skip the parameter
 159                             if (i >= cmdline.length) {
 160                                 dump ("w: ignoring command switch `"+arg+"' because no argument was provided.\n");
 161                                 continue;
 162                             }
 163                             var param = cmdline.getArgument (i);
 164                             handler.func(param, ctx);
 165                         } else {
 166                             handler.func(ctx);
 167                         }
 168                     }
 169                     continue;
 170                 } else {
 171                     dump ("w: unknown command switch `"+arg+"'.\n");
 172                 }
 173             } else {
 174                 // something other than a switch was passed on the command
 175                 // line.  suppress the default window, and call the
 176                 // user-configurable remoting function on it.
 177                 //
 178                 suppress_default = true;
 179                 url_remoting_fn (arg, ctx);
 180             }
 181         }
 182
 183         // we are greedy and handle all command line arguments.  remove
 184         // everything from the command line object, so no other
 185         // components can see them.
 186         //
 187         if (cmdline.length > 0) {
 188             cmdline.removeArguments(0, cmdline.length - 1);
 189         }
 190
 191         // no args were found for url_remoting_fn, and no switches
 192         // explicitly suppressed the creation of a default window
 193         // (e.g. -batch or -daemon)
 194         //
 195         if (! suppress_default) {
 196             url_remoting_fn(homepage, ctx);
 197         }
 198     } catch (e) {
 199         dumpln("Error processing command line.");
 200         dump_error(e);
 201     }
 202 }
 203