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/**
* (C) Copyright 2008 Jeremy Maitin-Shepard
*
* Use, modification, and distribution are subject to the terms specified in the
* COPYING file.
**/
/**
* Default media scraper
*
* Looks for <embed> and <object> elements, and also uses regular
* expresisons to attempt to match strings that look like URIs to
* embedded media.
**/
define_variable("media_scrape_default_regexp",
new RegExp("(?:http://[a-zA-Z0-9.\\-]+/)?(?!://)[^=&<>\"'|\\s]+\\."
+ "(?:aiff|au|avi|flv|mid|mov|mp3|mpg|mpeg|ogg|ra|rm|spl|wav|wma|wmv)(?!\\w)", "ig"),
"Regular expression used by the default media scraper to match URIs for "
+ "embedded media in the page source code.");
function media_scrape_default (buffer, results) {
var initial_length = results.length;
for (let frame in frame_iterator(buffer.top_frame)) {
var text = frame.document.documentElement.innerHTML;
var matches = text.match(media_scrape_default_regexp);
//matches = matches.concat(unescape(text).match(media_scrape_default_regexp));
let base_uri = frame.document.documentURIObject;
var uris = {};
for each (let x in matches) {
let str = x;
try {
let uri_obj = make_uri(str, null, base_uri);
if (! uris[uri_obj.spec]) {
uris[uri_obj.spec] = true;
results.push(load_spec({uri: uri_obj.spec, source_frame: frame}));
}
} catch (e) {}
}
}
// If there is exactly 1, use the document title as the video title
if (initial_length == 0 && results.length == 1 &&
buffer.document.title && buffer.document.title.length > 0)
{
results[0].title = buffer.document.title;
}
return results;
}
define_variable("media_scrapers",
[[/.*/, media_scrape_default]],
"Associative list of regexps for matching urls, mapped to functions "+
"(or coroutines) to use to scrape a page for embedded media.")
function media_scrape (I, buffer) {
var results = [];
for (var i = 0, nscrapers = media_scrapers.length; i < nscrapers; i++) {
if (media_scrapers[i][0].test(buffer.current_uri.spec))
yield media_scrapers[i][1](buffer, results);
}
yield co_return(results);
}
define_browser_object_class("media", null,
function (I, prompt) {
let media = yield media_scrape(I, I.buffer);
if (!media || media.length == 0)
throw interactive_error("No media found.");
if (media.length == 1)
yield co_return(media[0]);
let completer = new all_word_completer(
$completions = media,
$get_string = function (x) {
x = load_spec(x);
return load_spec_uri_string(x);
},
$get_description = function (x) {
x = load_spec(x);
return (load_spec_title(x) || "") +
(x.description ? " ("+x.description+")" : "");
});
let result = yield I.buffer.window.minibuffer.read(
$prompt = prompt,
$require_match,
$completer = completer,
$auto_complete_initial,
$auto_complete = "media");
yield co_return(result);
},
$hint = "select media");
minibuffer_auto_complete_preferences["media"] = true;
function media_setup_local_object_classes (buffer) {
buffer.default_browser_object_classes = {
save: browser_object_media
};
buffer.default_browser_object_classes['shell-command-on-file'] =
browser_object_media;
buffer.default_browser_object_classes['shell-command-on-url'] =
browser_object_media;
}
function media_disable_local_object_classes (buffer) {
buffer.default_browser_object_classes = {};
}
provide("media");
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