Quelle event_propagation_iframe.html

Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/indexedDB/test/event_propagation_iframe.html

<html>
<head>
  <title>Indexed Database Property Test</title>

  <script type="text/javascript">

    let testGenerator = testSteps();

    function ok(val, message) {
      val = val ? "true" : "false";
      window.parent.postMessage("SimpleTest.ok(" + val + ", '" + message +
                                "');", "*");
    }

    function grabEventAndContinueHandler(event) {
      testGenerator.next(event);
    }

    function errorHandler(event) {
      ok(false, "indexedDB error, code " + event.target.error.name);
      finishTest();
    }

    function finishTest() {
      testGenerator.return();
      window.parent.postMessage("SimpleTest.finish();", "*");
    }

    const eventChain = [
      "IDBRequest",
      "IDBTransaction",
      "IDBDatabase",
    ];

    let captureCount = 0;
    let bubbleCount = 0;
    let atTargetCount = 0;

    function errorEventCounter(event) {
      ok(event.type == "error", "Got an error event");
      ok(event.target instanceof window[eventChain[0]],
         "Correct event.target");

      let constructor;
      if (event.eventPhase == event.AT_TARGET) {
        atTargetCount++;
        constructor = eventChain[0];
      }
      else if (event.eventPhase == event.CAPTURING_PHASE) {
        constructor = eventChain[eventChain.length - 1 - captureCount++];
      }
      else if (event.eventPhase == event.BUBBLING_PHASE) {
        constructor = eventChain[++bubbleCount];
        if (bubbleCount == eventChain.length - 1) {
          event.preventDefault();
        }
      }
      ok(event.currentTarget instanceof window[constructor],
         "Correct event.currentTarget");

      if (bubbleCount == eventChain.length - 1) {
        ok(bubbleCount == captureCount,
           "Got same number of calls for both phases");
        ok(atTargetCount == 1, "Got one atTarget event");

        captureCount = bubbleCount = atTargetCount = 0;
        finishTest();
      }
    }

    function* testSteps() {
      window.parent.SpecialPowers.addPermission("indexedDB", true, document);

      let request = indexedDB.open(window.location.pathname, 1);
      request.onerror = errorHandler;
      request.onupgradeneeded = grabEventAndContinueHandler;
      let event = yield undefined;

      let db = event.target.result;
      db.onerror = errorEventCounter;
      db.addEventListener("error", errorEventCounter, true);

      event.target.onsuccess = grabEventAndContinueHandler;

      db.createObjectStore("foo", { autoIncrement: true });
      yield undefined;

      let transaction = db.transaction("foo", "readwrite");
      transaction.addEventListener("error", errorEventCounter);
      transaction.addEventListener("error", errorEventCounter, true);

      let objectStore = transaction.objectStore("foo");

      request = objectStore.add({}, 1);
      request.onsuccess = grabEventAndContinueHandler;
      request.onerror = errorHandler;
      event = yield undefined;

      request = objectStore.add({}, 1);
      request.onsuccess = function() {
        ok(false, "Did not expect second add to succeed.");
      };
      request.onerror = errorEventCounter;
      yield undefined;

      transaction = db.transaction("foo", "readwrite");
      transaction.addEventListener("error", errorEventCounter);
      transaction.addEventListener("error", errorEventCounter, true);

      objectStore = transaction.objectStore("foo");

      request = objectStore.add({}, 1);
      request.onsuccess = grabEventAndContinueHandler;
      request.onerror = errorHandler;
      event = yield undefined;

      request = objectStore.add({}, 1);
      request.onsuccess = function() {
        ok(false, "Did not expect second add to succeed.");
      };
      request.onerror = errorEventCounter;
      yield undefined;
    }
  </script>

</head>

<body onload="testGenerator.next();"></body>

</html>

Messung V0.5 in Prozent

¤ Dauer der Verarbeitung: 0.22 Sekunden (vorverarbeitet am 2026-08-25) ¤

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