Firefox and Emacs

2017-05-23 12:24 | Source

For me, there is NO difference between Firefox and Emacs. They provide useful APIs, nothing more.

Three years ago, I wrote Use firefox in Emacs way to demo how to convert Firefox into Emacs by Keynsail.

A year ago I published Hello Ivy-mode, bye Helm to prove how powerful Ivy-mode is by using its API ivy-read.

Keysnail has similar javascript API prompt.selector and it's as powerful as ivy-read if not more powerful.

For example, you can insert below snippet into ~/.keysnail.js and press ",hh" or "C-c C-h" to query browse history:

function searchHistory(evt, arg) {
  function timeSince(now, date) {

    var seconds = Math.floor((now - date) / 1000);

    var interval = Math.floor(seconds / 31536000);

    if (interval > 1) {
      return interval + " years";
    }
    interval = Math.floor(seconds / 2592000);
    if (interval > 1) {
      return interval + " months";
    }
    interval = Math.floor(seconds / 86400);
    if (interval > 1) {
      return interval + " days";
    }
    interval = Math.floor(seconds / 3600);
    if (interval > 1) {
      return interval + " hours";
    }
    interval = Math.floor(seconds / 60);
    if (interval > 1) {
      return interval + " minutes";
    }
    return Math.floor(seconds) + " seconds";
  }

  function searchWithKeyword(q) {
    var collection = (function() {
      //search option
      var options = PlacesUtils.history.getNewQueryOptions();
      options.maxResults = 4096;
      options.queryType = Ci.nsINavHistoryQueryOptions.QUERY_TYPE_HISTORY;
      //options.sortingMode = Ci.nsINavHistoryQueryOptions.SORT_BY_FRECENCY_DESCENDING;
      options.sortingMode = Ci.nsINavHistoryQueryOptions.SORT_BY_DATE_DESCENDING;
      options.includeHidden = true;

      //search query
      var query = PlacesUtils.history.getNewQuery();
      // read keyworld
      if(q && q !== '') {
        query.searchTerms  = q;
      }

      var result = PlacesUtils.history.executeQuery(query, options);
      var root = result.root;

      var collection = [];
      var now = new Date().getTime();
      var siteNode;
      root.containerOpen = true;
      for (var i = 0; i < root.childCount; i++) {
        // siteNode => nsINavHistoryResultNode
        siteNode = root.getChild(i);
        collection.push([siteNode.icon,siteNode.title,siteNode.uri, siteNode.time/1000]);
      }
      collection.sort(function(a, b) {
        return b[3]-a[3];
      });
      // reformat the time
      for (i = 0; i < collection.length; i++) {
        collection[i][3] = timeSince(now, collection[i][3]) + ' ago';
      }
      root.containerOpen = false;
      return collection;
    })();

    prompt.selector({
      message    : "Search history"+ (q && q !== ''? (' @'+q +':') : ':' ),
      collection : collection,
      flags      : [ICON | IGNORE, 0, 0, 0],
      header     : ["Title", "Url", "Last visited"],
      width      : [30, 60, 10],
      callback: function (i) {
        if (i >= 0) {
          openUILinkIn(collection[i][2], "tab");
        }
      },
      onFinish: function() {
        gBrowser.focus();
        _content.focus();
      }
    });
  }

  prompt.finish(true);
  prompt.read('Keyword to search history?', searchWithKeyword, null, null, null, 0, "history_search");
  // searchWithKeyword('test');

}
key.setViewKey([',', 'h', 'h'], searchHistory, "Search history");
key.setGlobalKey(['C-c', 'C-h'], searchHistory, "Search history");

Here is my complete .keysnail.js.