grep.js

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}}} */

// INFO {{{
let INFO =
<>
  <plugin name="grep" version="0.1.0"
          href="https://github.com/Jagua/vimperator-plugins-sample"
          summary="grep - scan string in all buffers."
          lang="en-US"
          xmlns="http://vimperator.org/namespaces/liberator">
    <author homepage="https://github.com/Jagua">Jagua</author>
    <license>New BSD License</license>
    <project name="Vimperator" minVersion="3.0"/>
    <p>scan string in all buffers.</p>
    <item>
      <tags>:grep</tags>
      <spec>:grep <a>string</a></spec>
      <description><p>scan string in all buffers, and switch to a buffer which you select within greped buffers.</p></description>
    </item>
  </plugin>
</>;
// }}}

(function() {


  function grep(keywords) {
    var firefoxVer = Components.classes["@mozilla.org/xre/app-info;1"]
                               .getService(Components.interfaces.nsIXULAppInfo)
                               .version;

    if (firefoxVer < '13.0') {
      var scriptableUnescapeHTML = Components.classes["@mozilla.org/feed-unescapehtml;1"]
                                             .getService(Components.interfaces.nsIScriptableUnescapeHTML);
    } else {
      var parserUtils = Components.classes["@mozilla.org/parserutils;1"]
                                  .getService(Components.interfaces.nsIParserUtils);
    }
    var html;
    var text;
    var title;
    var url;
    var a = [];
    var i;
    for(i = 0; i < gBrowser.browsers.length; i++) {
      html = gBrowser.getBrowserAtIndex(i).contentDocument.getElementsByTagName('html').item(0).innerHTML;
      if (firefoxVer < '13.0') {
        text = scriptableUnescapeHTML.unescape(html);
      } else {
        text = parserUtils.convertToPlainText(html, 1, 0);
      }
      if (text.search(RegExp(keywords, 'i')) != -1) {
        title = gBrowser.getBrowserAtIndex(i).contentTitle;
        url = gBrowser.getBrowserAtIndex(i).currentURI.spec;
        a.push([i + ": " + title, url]);
      }
    }
    return a;
  }


  function bufferCompleter(context, args) {
    context.title = ['title', 'buffer url'];
    context.filters = [];
    context.compare = void 0;
    context.incomplete = false;
    context.completions = grep(args.toString());
  }


  commands.addUserCommand(
    ['grep'],
    'scan string in all buffers',
    function (args) {
      if (args != '') {
        if (args.toString().match(/^(\d+):/)) {
          gBrowser.selectedTab = gBrowser.selectTabAtIndex(parseInt(RegExp.$1));
        }
      } else {
        liberator.echo('Grep <usage> :grep <args>');
      }
    },{
      literal: 0,
      bang: true,
      completer: bufferCompleter,
    },
    true
  );

})();

// vim: set et fdm=syntax ft=javascript sts=2 sw=2 ts=2 :