components/dom_distiller/core/javascript/domdistiller.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Applies DomDistillerJs to the content of the page and returns a
   6 // DomDistillerResults (as a javascript object/dict).
   7 (function(options, stringify_output, use_new_context) {
   8   try {
   9     // The generated domdistiller.js accesses the window object only explicitly
  10     // via the window name. So, we create a new object with the normal window
  11     // object as its prototype and initialize the domdistiller.js with that new
  12     // context so that it doesn't change the real window object.
  13     function initialize(window) {
  14       // This include will be processed at build time by grit.
  15       <include src="../../../../third_party/dom_distiller_js/dist/js/domdistiller.js"/>
  16     }
  17     var context = use_new_context ? Object.create(window) : window
  18     context.setTimeout = function() {};
  19     context.clearTimeout = function() {};
  20     initialize(context);
  21
  22     // The OPTIONS placeholder will be replaced with the DomDistillerOptions at
  23     // runtime.
  24     var distiller = context.org.chromium.distiller.DomDistiller;
  25     var res = distiller.applyWithOptions(options);
  26
  27     if (stringify_output) {
  28       return JSON.stringify(res);
  29     }
  30     return res;
  31   } catch (e) {
  32     window.console.error("Error during distillation: " + e);
  33     if (e.stack != undefined) window.console.error(e.stack);
  34   }
  35   return undefined;
  36 })(options = $$OPTIONS,
  37    stringify_output = $$STRINGIFY,
  38    use_new_context = $$NEW_CONTEXT)