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      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 package org.chromium.components.dom_distiller.core;
      6 
      7 import org.chromium.base.JNINamespace;
      8 
      9 /**
     10  * Wrapper for the dom_distiller::url_utils.
     11  */
     12 @JNINamespace("dom_distiller::url_utils::android")
     13 public final class DomDistillerUrlUtils {
     14     private DomDistillerUrlUtils() {
     15     }
     16 
     17     /**
     18      * Returns the URL for viewing distilled content for a URL.
     19      *
     20      * @param scheme The scheme for the DOM Distiller source.
     21      * @param url The URL to distill.
     22      * @return the URL to load to get the distilled version of a page.
     23      */
     24     public static String getDistillerViewUrlFromUrl(String scheme, String url) {
     25         return nativeGetDistillerViewUrlFromUrl(scheme, url);
     26     }
     27 
     28     /**
     29      * Returns the original URL of a distillation given the viewer URL.
     30      *
     31      * @param url The current viewer URL.
     32      * @return the URL of the original page.
     33      */
     34     public static String getOriginalUrlFromDistillerUrl(String url) {
     35         return nativeGetOriginalUrlFromDistillerUrl(url);
     36     }
     37 
     38     /**
     39      * Returns whether the url is for a distilled page.
     40      *
     41      * @param url The url of the page.
     42      * @return whether the url is for a distilled page.
     43      */
     44     public static boolean isDistilledPage(String url) {
     45         return nativeIsDistilledPage(url);
     46     }
     47 
     48     public static boolean isUrlDistillable(String url) {
     49         return nativeIsUrlDistillable(url);
     50     }
     51 
     52     // TODO(yfriedman): Change method so that it takes in a WebContents and a
     53     // callback.
     54     public static String getIsDistillableJs() {
     55         return nativeGetIsDistillableJs();
     56     }
     57 
     58     public static String getValueForKeyInUrl(String url, String key) {
     59         return nativeGetValueForKeyInUrl(url, key);
     60     }
     61 
     62     private static native String nativeGetDistillerViewUrlFromUrl(String scheme, String url);
     63     private static native String nativeGetIsDistillableJs();
     64     private static native String nativeGetOriginalUrlFromDistillerUrl(String viewerUrl);
     65     private static native boolean nativeIsDistilledPage(String url);
     66     private static native boolean nativeIsUrlDistillable(String url);
     67     private static native String nativeGetValueForKeyInUrl(String url, String key);
     68 }
     69