Import wpt@758b3b4cfa805067f36121333ba031e583d3a62c

third_party/WebKit/LayoutTests/external/wpt/webvtt/webvtt-file-format-parsing/webvtt-cue-text-parsing-rules/common.js

+var namespaces = {
+    "html":"http://www.w3.org/1999/xhtml",
+    "mathml":"http://www.w3.org/1998/Math/MathML",
+    "svg":"http://www.w3.org/2000/svg",
+    "xlink":"http://www.w3.org/1999/xlink",
+    "xml":"http://www.w3.org/XML/1998/namespace",
+    "xmlns":"http://www.w3.org/2000/xmlns/"
+};
+
+var prefixes = {};
+for (var prefix in namespaces) {
+  if (namespaces.hasOwnProperty(prefix)) {
+    prefixes[namespaces[prefix]] = prefix;
+  }
+}
+prefixes[namespaces["mathml"]] = "math";
+
+function format(format_string) {
+  var insertions = Array.prototype.slice.call(arguments, 1);
+  var regexp = /%s/g;
+  var match_count = 0;
+  var rv = format_string.replace(regexp, function(match) {
+                                   var rv = insertions[match_count];
+                                   match_count++;
+                                   return rv;
+                                 });
+  return rv;
+}
+
+function test_serializer(element) {
+  //element.normalize();
+  var lines = [];
+  function serialize_element(element, indent) {
+    var indent_spaces = (new Array(indent)).join(" ");
+    switch(element.nodeType) {
+      case Node.DOCUMENT_TYPE_NODE:
+        if (element.name) {
+          if (element.publicId || element.systemId) {
+            var publicId = element.publicId ? element.publicId : "";
+            var systemId = element.systemId ? element.systemId : "";
+            lines.push(format("|%s<!DOCTYPE %s \"%s\" \"%s\">", indent_spaces,
+                                element.name, publicId, systemId));
+          } else {
+            lines.push(format("|%s<!DOCTYPE %s>", indent_spaces,
+                                element.name));
+          }
+        } else {
+          lines.push(format("|%s<!DOCTYPE >", indent_spaces));
+        }
+        break;
+      case Node.DOCUMENT_NODE:
+        lines.push("#document");
+        break;
+      case Node.DOCUMENT_FRAGMENT_NODE:
+        lines.push("#document-fragment");
+        break;
+      case Node.PROCESSING_INSTRUCTION_NODE:
+        lines.push(format("|%s<?%s %s>", indent_spaces, element.target, element.data));
+        break;
+      case Node.COMMENT_NODE:
+        lines.push(format("|%s<!-- %s -->", indent_spaces, element.nodeValue));
+        break;
+      case Node.TEXT_NODE:
+        lines.push(format("|%s\"%s\"", indent_spaces, element.nodeValue));
+        break;
+      case Node.ELEMENT_NODE:
+        if (element.getAttribute("data-skip") !== null) {
+          return;
+        }
+        if (element.namespaceURI !== null && element.namespaceURI !== namespaces.html) {
+          var name = format("%s %s", prefixes[element.namespaceURI],
+                            element.localName);
+        } else {
+          var name = element.localName;
+        }
+        lines.push(format("|%s<%s>", indent_spaces, name));
+
+        var attributes = Array.prototype.map.call(
+               element.attributes,
+               function(attr) {
+                 var name = (attr.namespaceURI ? prefixes[attr.namespaceURI] + " " : "") +
+                      attr.localName;
+                 return [name, attr.value];
+               });
+        attributes.sort(function (a, b) {
+              var x = a[0];
+              var y = b[0];
+              if (x === y) {
+                        return 0;
+              }
+              return x > y ? 1 : -1;
+                });
+
+        attributes.forEach(
+          function(attr) {
+            var indent_spaces = (new Array(indent + 2)).join(" ");
+            lines.push(format("|%s%s=\"%s\"", indent_spaces, attr[0], attr[1]));
+          }
+        );
+        break;
+    }
+    indent += 2;
+    Array.prototype.forEach.call(element.childNodes,
+                                 function(node) {
+                                   serialize_element(node, indent);
+                                 });
+  }
+  serialize_element(element, 0);
+  return lines.join("\n");
+}
+
+function print_diffs(test_id, uri_encoded_input, expected, actual, container) {
+  container = container ? container : null;
+  if (actual) {
+    var diffs = mark_diffs(expected, actual);
+    var expected_text = diffs[0];
+    var actual_text = diffs[1];
+  } else {
+    var expected_text = expected;
+    var actual_text = "";
+  }
+
+  var tmpl = ["div", {"id":"${test_id}"},
+              ["h2", {}, "${test_id}"],
+              function(vars) {
+                if (vars.container !== null) {
+                  return ["div", {"class":"container"},
+                  ["h3", {}, "innerHTML Container"],
+                  ["pre", {}, vars.container]];
+                } else {
+                  return null;
+                }
+              },
+              ["div", {"id":"input_${test_id}"}, ["h3", {}, "Input"], ["pre", {},
+                                                                       ["code", {}, decodeURIComponent(uri_encoded_input)]]],
+              ["div", {"id":"expected_${test_id}"}, ["h3", {}, "Expected"],
+               ["pre", {}, ["code", {}, expected_text]]],
+              ["div", {"id":"actual_${test_id}"}, ["h3", {}, "Actual"],
+               ["pre", {}, ["code", {}, actual_text]]]
+             ];
+
+  var diff_dom = template.render(tmpl, {test_id:test_id, container:container});
+  document.body.appendChild(diff_dom);
+}
+
+function runTests(tests) {
+    tests.forEach(function(test){
+        var expected = decodeURIComponent(test.expected);
+        var t = async_test(document.title + ' - ' + test.name);
+        t.step(function(){
+            var video = document.createElement('video');
+            var track = document.createElement('track');
+            assert_true('src' in track, 'track not supported');
+            t.test_id = test.name;
+            t.url_encoded_input = test.input;
+            t.expected = expected;
+            track.src = 'data:text/vtt,'+encodeURIComponent('WEBVTT\n\n00:00.000 --> 00:01.000\n')+test.input;
+            track['default'] = true;
+            track.kind = 'subtitles';
+            track.onload = t.step_func(trackLoaded);
+            track.onerror = t.step_func(trackError);
+            video.appendChild(track);
+            document.body.appendChild(video);
+        });
+    });
+}
+
+function trackLoaded(e) {
+    var track = e.target;
+    setTimeout(removeElm, 0, track.parentNode);
+    var cue = track.track.cues[0];
+    var frag = cue.getCueAsHTML();
+    var got = test_serializer(frag);
+    if (got !== this.expected) {
+        print_diffs(this.test_id, this.url_encoded_input, this.expected, got);
+    }
+    assert_equals(got, this.expected);
+    this.done();
+}
+
+function trackError(e) {
+    setTimeout(removeElm, 0, e.target.parentNode);
+    assert_unreached('got error event');
+    this.done();
+}
+
+function removeElm(elm) {
+    document.body.removeChild(elm);
+}