1 files changed, 163 insertions, 0 deletions
diff --git a/testing/web-platform/tests/shadow-dom/resources/shadow-dom.js b/testing/web-platform/tests/shadow-dom/resources/shadow-dom.js
new file mode 100644
index 0000000000..3a4ad39d42
--- /dev/null
+++ b/testing/web-platform/tests/shadow-dom/resources/shadow-dom.js
@@ -0,0 +1,163 @@
+function removeWhiteSpaceOnlyTextNodes(node)
+{
+  for (var i = 0; i < node.childNodes.length; i++) {
+    var child = node.childNodes[i];
+    if (child.nodeType === Node.TEXT_NODE && child.nodeValue.trim().length == 0) {
+      node.removeChild(child);
+      i--;
+    } else if (child.nodeType === Node.ELEMENT_NODE || child.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {
+      removeWhiteSpaceOnlyTextNodes(child);
+    }
+  }
+  if (node.shadowRoot) {
+    removeWhiteSpaceOnlyTextNodes(node.shadowRoot);
+  }
+}
+
+function createTestTree(node) {
+
+  let ids = {};
+
+  function attachShadowFromTemplate(template) {
+    let parent = template.parentNode;
+    parent.removeChild(template);
+    let shadowRoot;
+    if (template.getAttribute('data-slot-assignment') === 'manual') {
+       shadowRoot =
+          parent.attachShadow({mode: template.getAttribute('data-mode'),
+                               slotAssignment: 'manual'});
+    } else {
+      shadowRoot = parent.attachShadow(
+          {mode: template.getAttribute('data-mode')});
+    }
+    let id = template.id;
+    if (id) {
+      shadowRoot.id = id;
+      ids[id] = shadowRoot;
+    }
+    shadowRoot.appendChild(document.importNode(template.content, true));
+    return shadowRoot;
+  }
+
+  function walk(root) {
+    if (root.id) {
+      ids[root.id] = root;
+    }
+    for (let e of Array.from(root.querySelectorAll('[id]'))) {
+      ids[e.id] = e;
+    }
+    for (let e of Array.from(root.querySelectorAll('template'))) {
+      walk(attachShadowFromTemplate(e));
+    }
+  }
+
+  walk(node.cloneNode(true));
+  return ids;
+}
+
+// TODO: Refactor this so that only interested results are recorded.
+// Callers of this function would not be interested in every results.
+function dispatchEventWithLog(nodes, target, event, options) {
+
+  function labelFor(e) {
+    return e.id || e.tagName;
+  }
+
+  let log = [];
+  let attachedNodes = [];
+  for (let label in nodes) {
+    let startingNode = nodes[label];
+    for (let node = startingNode; node; node = node.parentNode) {
+      if (attachedNodes.indexOf(node) >= 0)
+        continue;
+      let id = node.id;
+      if (!id)
+        continue;
+      attachedNodes.push(node);
+      if (options && options.capture) {
+        // Record [currentTarget, target, relatedTarget, composedPath(), 'capture' | 'non-capture']
+        // TODO: Support registering listeners in different orders.
+        // e.g. Register a non-capture listener at first, then register a capture listener.
+        node.addEventListener(event.type, (e) => {
+          log.push([id,
+                    labelFor(e.target),
+                    e.relatedTarget ? labelFor(e.relatedTarget) : null,
+                    e.composedPath().map((n) => {
+                      return labelFor(n);
+                    }),
+                    'capture']);
+        }, true);
+        node.addEventListener(event.type, (e) => {
+          log.push([id,
+                    labelFor(e.target),
+                    e.relatedTarget ? labelFor(e.relatedTarget) : null,
+                    e.composedPath().map((n) => {
+                      return labelFor(n);
+                    }),
+                    'non-capture']);
+        });
+      } else {
+        // Record [currentTarget, target, relatedTarget, composedPath()]
+        node.addEventListener(event.type, (e) => {
+          log.push([id,
+                    labelFor(e.target),
+                    e.relatedTarget ? labelFor(e.relatedTarget) : null,
+                    e.composedPath().map((n) => {
+                      return labelFor(n);
+                    })]
+                  );
+        });
+      }
+    }
+  }
+  target.dispatchEvent(event);
+  return log;
+}
+
+// TODO(hayato): Merge this into dispatchEventWithLog
+function dispatchUAEventWithLog(nodes, target, eventType, callback) {
+
+  function labelFor(e) {
+    return e.id || e.tagName;
+  }
+
+  let log = [];
+  let attachedNodes = [];
+  for (let label in nodes) {
+    let startingNode = nodes[label];
+    for (let node = startingNode; node; node = node.parentNode) {
+      if (attachedNodes.indexOf(node) >= 0)
+        continue;
+      let id = node.id;
+      if (!id)
+        continue;
+      attachedNodes.push(node);
+      node.addEventListener(eventType, (e) => {
+        // Record [currentTarget, target, relatedTarget, composedPath()]
+        log.push([id,
+                  labelFor(e.target),
+                  e.relatedTarget ? labelFor(e.relatedTarget) : null,
+                  e.composedPath().map((n) => {
+                    return labelFor(n);
+                  })]);
+      });
+    }
+  }
+  callback(target);
+  return log;
+}
+
+// This function assumes that testharness.js is available.
+function assert_event_path_equals(actual, expected) {
+  assert_equals(actual.length, expected.length);
+  for (let i = 0; i < actual.length; ++i) {
+    assert_equals(actual[i].length, expected[i].length);
+    assert_equals(actual[i][0], expected[i][0], 'currentTarget at ' + i + ' should be same');
+    assert_equals(actual[i][1], expected[i][1], 'target at ' + i + ' should be same');
+    assert_equals(actual[i][2], expected[i][2], 'relatedTarget at ' + i + ' should be same');
+    assert_array_equals(actual[i][3], expected[i][3], 'composedPath at ' + i + ' should be same');
+    if (actual[i][4]) {
+      assert_equals(actual[i][4], expected[i][4], 'listener type should be same at ' + i);
+    }
+  }
+}