modules/page-modes/google-images.js

   1 /**
   2  * (C) Copyright 2009 John J. Foerch
   3  *
   4  * Use, modification, and distribution are subject to the terms specified in the
   5  * COPYING file.
   6 **/
   7
   8 /**
   9  * Google Images Mode
  10  *
  11  *   Provides browser-object overrides for various commands at
  12  * google-images, to follow directly to the page that contains an
  13  * image, or directly save the full-size image.  Never see that
  14  * annoying frameset page from google again!
  15  */
  16
  17 in_module(null);
  18
  19 define_variable('google_images_imgrefurl_commands',
  20                 ["follow", "follow-new-buffer",
  21                  "follow-new-buffer-background",
  22                  "follow-new-window", "copy"],
  23     "List of commands for which the google-images-imgrefurl browser object "+
  24     "should be used in Google Images Mode");
  25
  26 define_variable('google_images_imgurl_commands',
  27                 ["save", "shell-command-on-file"],
  28     "List of commands for which the google-images-imgurl browser object "+
  29     "should be used in Google Images Mode");
  30
  31 function google_images_get_image_uri (I, prompt) {
  32     var result = yield I.buffer.window.minibuffer.read_hinted_element(
  33         $buffer = I.buffer,
  34         $prompt = prompt,
  35         $hint_xpath_expression = "//a[img]");
  36     if (result instanceof Ci.nsIDOMHTMLElement) {
  37         var u = Cc["@mozilla.org/network/standard-url;1"]
  38             .createInstance(Ci.nsIURL);
  39         u.spec = result.href;
  40         yield co_return(u);
  41     } else
  42         yield co_return(result);
  43 }
  44
  45 define_browser_object_class("google-images-imgrefurl", null,
  46     function (I, prompt) {
  47         var u = yield google_images_get_image_uri(I, prompt);
  48         if (u instanceof Ci.nsIURL) {
  49             var imgrefurl = unescape(u.query.match(/&imgrefurl=([^&]*)/)[1]);
  50             yield co_return(imgrefurl);
  51         } else
  52             yield co_return(u);
  53     });
  54
  55 define_browser_object_class("google-images-imgurl", null,
  56     function (I, prompt) {
  57         var u = yield google_images_get_image_uri(I, prompt);
  58         if (u instanceof Ci.nsIURL) {
  59             var imgurl = unescape(u.query.match(/imgurl=([^&]*)/)[1]);
  60             yield co_return(imgurl);
  61         } else
  62             yield co_return(u);
  63     });
  64
  65 define_page_mode("google_images_mode",
  66     $display_name = "Google Images",
  67     $enable = function (buffer) {
  68         for each (var c in google_images_imgrefurl_commands) {
  69             buffer.default_browser_object_classes[c] =
  70                 browser_object_google_images_imgrefurl;
  71         }
  72         for each (var c in google_images_imgurl_commands) {
  73             buffer.default_browser_object_classes[c] =
  74                 browser_object_google_images_imgurl;
  75         }
  76     });
  77
  78
  79 let (rx = build_url_regex($domain = /(.*\.)?google/,
  80                           $path = "images")) {
  81     auto_mode_list.push([rx, google_images_mode]);
  82 };
  83
  84 provide("google-images");