1 files changed, 276 insertions, 0 deletions
diff --git a/accessible/tests/browser/text/head.js b/accessible/tests/browser/text/head.js
new file mode 100644
index 0000000000..fa4b095892
--- /dev/null
+++ b/accessible/tests/browser/text/head.js
@@ -0,0 +1,276 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* exported createTextLeafPoint, DIRECTION_NEXT, DIRECTION_PREVIOUS,
+ BOUNDARY_FLAG_DEFAULT, BOUNDARY_FLAG_INCLUDE_ORIGIN,
+ BOUNDARY_FLAG_STOP_IN_EDITABLE, BOUNDARY_FLAG_SKIP_LIST_ITEM_MARKER,
+ readablePoint, testPointEqual, textBoundaryGenerator, testBoundarySequence,
+ isFinalValueCorrect, isFinalValueCorrect, testInsertText, testDeleteText,
+ testCopyText, testPasteText, testCutText, testSetTextContents */
+
+// Load the shared-head file first.
+Services.scriptloader.loadSubScript(
+  "chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js",
+  this
+);
+
+// Loading and common.js from accessible/tests/mochitest/ for all tests, as
+// well as promisified-events.js.
+
+/* import-globals-from ../../mochitest/role.js */
+
+loadScripts(
+  { name: "common.js", dir: MOCHITESTS_DIR },
+  { name: "text.js", dir: MOCHITESTS_DIR },
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "promisified-events.js", dir: MOCHITESTS_DIR }
+);
+
+const DIRECTION_NEXT = Ci.nsIAccessibleTextLeafPoint.DIRECTION_NEXT;
+const DIRECTION_PREVIOUS = Ci.nsIAccessibleTextLeafPoint.DIRECTION_PREVIOUS;
+
+const BOUNDARY_FLAG_DEFAULT =
+  Ci.nsIAccessibleTextLeafPoint.BOUNDARY_FLAG_DEFAULT;
+const BOUNDARY_FLAG_INCLUDE_ORIGIN =
+  Ci.nsIAccessibleTextLeafPoint.BOUNDARY_FLAG_INCLUDE_ORIGIN;
+const BOUNDARY_FLAG_STOP_IN_EDITABLE =
+  Ci.nsIAccessibleTextLeafPoint.BOUNDARY_FLAG_STOP_IN_EDITABLE;
+const BOUNDARY_FLAG_SKIP_LIST_ITEM_MARKER =
+  Ci.nsIAccessibleTextLeafPoint.BOUNDARY_FLAG_SKIP_LIST_ITEM_MARKER;
+
+function createTextLeafPoint(acc, offset) {
+  let accService = Cc["@mozilla.org/accessibilityService;1"].getService(
+    nsIAccessibilityService
+  );
+
+  return accService.createTextLeafPoint(acc, offset);
+}
+
+// Converts an nsIAccessibleTextLeafPoint into a human/machine
+// readable tuple with a readable accessible and the offset within it.
+// For a point text leaf it would look like this: ["hello", 2],
+// For a point in an empty input it would look like this ["input#name", 0]
+function readablePoint(point) {
+  const readableLeaf = acc => {
+    let tagName = getAccessibleTagName(acc);
+    if (tagName && !tagName.startsWith("_moz_generated")) {
+      let domNodeID = getAccessibleDOMNodeID(acc);
+      if (domNodeID) {
+        return `${tagName}#${domNodeID}`;
+      }
+      return tagName;
+    }
+
+    return acc.name;
+  };
+
+  return [readableLeaf(point.accessible), point.offset];
+}
+
+function sequenceEqual(val, expected, msg) {
+  Assert.deepEqual(val, expected, msg);
+}
+
+// eslint-disable-next-line camelcase
+function sequenceEqualTodo(val, expected, msg) {
+  todo_is(JSON.stringify(val), JSON.stringify(expected), msg);
+}
+
+function pointsEqual(pointA, pointB) {
+  return (
+    pointA.offset == pointB.offset && pointA.accessible == pointB.accessible
+  );
+}
+
+function testPointEqual(pointA, pointB, msg) {
+  is(pointA.offset, pointB.offset, `Offset mismatch - ${msg}`);
+  is(pointA.accessible, pointB.accessible, `Accessible mismatch - ${msg}`);
+}
+
+function* textBoundaryGenerator(
+  firstPoint,
+  boundaryType,
+  direction,
+  flags = BOUNDARY_FLAG_DEFAULT
+) {
+  // Our start point should be inclusive of the given point.
+  let nextLeafPoint = firstPoint.findBoundary(
+    boundaryType,
+    direction,
+    flags | BOUNDARY_FLAG_INCLUDE_ORIGIN
+  );
+  let textLeafPoint = null;
+
+  do {
+    textLeafPoint = nextLeafPoint;
+    yield textLeafPoint;
+    nextLeafPoint = textLeafPoint.findBoundary(boundaryType, direction, flags);
+  } while (!pointsEqual(textLeafPoint, nextLeafPoint));
+}
+
+// This function takes FindBoundary arguments and an expected sequence
+// of boundary points formatted with readablePoint.
+// For example, word starts would look like this:
+// [["one two", 0], ["one two", 4], ["one two", 7]]
+function testBoundarySequence(
+  startPoint,
+  boundaryType,
+  direction,
+  expectedSequence,
+  msg,
+  options = {}
+) {
+  let sequence = [
+    ...textBoundaryGenerator(
+      startPoint,
+      boundaryType,
+      direction,
+      options.flags ? options.flags : BOUNDARY_FLAG_DEFAULT
+    ),
+  ];
+  (options.todo ? sequenceEqualTodo : sequenceEqual)(
+    sequence.map(readablePoint),
+    expectedSequence,
+    msg
+  );
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// Editable text
+
+async function waitForCopy(browser) {
+  await BrowserTestUtils.waitForContentEvent(browser, "copy", false, evt => {
+    return true;
+  });
+
+  let clipboardData = await invokeContentTask(browser, [], async () => {
+    let text = await content.navigator.clipboard.readText();
+    return text;
+  });
+
+  return clipboardData;
+}
+
+async function isFinalValueCorrect(
+  browser,
+  acc,
+  expectedTextLeafs,
+  msg = "Value is correct"
+) {
+  let value =
+    acc.role == ROLE_ENTRY
+      ? acc.value
+      : await invokeContentTask(browser, [], () => {
+          return content.document.body.textContent;
+        });
+
+  let [before, text, after] = expectedTextLeafs;
+  let finalValue =
+    before && after && !text
+      ? [before, after].join(" ")
+      : [before, text, after].join("");
+
+  is(value.replace("\xa0", " "), finalValue, msg);
+}
+
+function waitForTextChangeEvents(acc, eventSeq) {
+  let events = eventSeq.map(eventType => {
+    return [eventType, acc];
+  });
+
+  if (acc.role == ROLE_ENTRY) {
+    events.push([EVENT_TEXT_VALUE_CHANGE, acc]);
+  }
+
+  return waitForEvents(events);
+}
+
+async function testSetTextContents(acc, text, staticContentOffset, events) {
+  acc.QueryInterface(nsIAccessibleEditableText);
+  let evtPromise = waitForTextChangeEvents(acc, events);
+  acc.setTextContents(text);
+  let evt = (await evtPromise)[0];
+  evt.QueryInterface(nsIAccessibleTextChangeEvent);
+  is(evt.start, staticContentOffset);
+}
+
+async function testInsertText(
+  acc,
+  textToInsert,
+  insertOffset,
+  staticContentOffset
+) {
+  acc.QueryInterface(nsIAccessibleEditableText);
+
+  let evtPromise = waitForTextChangeEvents(acc, [EVENT_TEXT_INSERTED]);
+  acc.insertText(textToInsert, staticContentOffset + insertOffset);
+  let evt = (await evtPromise)[0];
+  evt.QueryInterface(nsIAccessibleTextChangeEvent);
+  is(evt.start, staticContentOffset + insertOffset);
+}
+
+async function testDeleteText(
+  acc,
+  startOffset,
+  endOffset,
+  staticContentOffset
+) {
+  acc.QueryInterface(nsIAccessibleEditableText);
+
+  let evtPromise = waitForTextChangeEvents(acc, [EVENT_TEXT_REMOVED]);
+  acc.deleteText(
+    staticContentOffset + startOffset,
+    staticContentOffset + endOffset
+  );
+  let evt = (await evtPromise)[0];
+  evt.QueryInterface(nsIAccessibleTextChangeEvent);
+  is(evt.start, staticContentOffset + startOffset);
+}
+
+async function testCopyText(
+  acc,
+  startOffset,
+  endOffset,
+  staticContentOffset,
+  browser,
+  aExpectedClipboard = null
+) {
+  acc.QueryInterface(nsIAccessibleEditableText);
+  let copied = waitForCopy(browser);
+  acc.copyText(
+    staticContentOffset + startOffset,
+    staticContentOffset + endOffset
+  );
+  let clipboardText = await copied;
+  if (aExpectedClipboard != null) {
+    is(clipboardText, aExpectedClipboard, "Correct text in clipboard");
+  }
+}
+
+async function testPasteText(acc, insertOffset, staticContentOffset) {
+  acc.QueryInterface(nsIAccessibleEditableText);
+  let evtPromise = waitForTextChangeEvents(acc, [EVENT_TEXT_INSERTED]);
+  acc.pasteText(staticContentOffset + insertOffset);
+
+  let evt = (await evtPromise)[0];
+  evt.QueryInterface(nsIAccessibleTextChangeEvent);
+  // XXX: In non-headless mode pasting text produces several text leaves
+  // and the offset is not what we expect.
+  // is(evt.start, staticContentOffset + insertOffset);
+}
+
+async function testCutText(acc, startOffset, endOffset, staticContentOffset) {
+  acc.QueryInterface(nsIAccessibleEditableText);
+  let evtPromise = waitForTextChangeEvents(acc, [EVENT_TEXT_REMOVED]);
+  acc.cutText(
+    staticContentOffset + startOffset,
+    staticContentOffset + endOffset
+  );
+
+  let evt = (await evtPromise)[0];
+  evt.QueryInterface(nsIAccessibleTextChangeEvent);
+  is(evt.start, staticContentOffset + startOffset);
+}