<!DOCTYPE html>
<html>
<head>
<title>Test for slicing blobs that originated in a parent process</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js">
</script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body onload="setup();">
<script type="application/javascript;version=1.7">
"use strict";
function childFrameScript() {
"use strict";
const { classes: Cc, interfaces: Ci } = Components;
const messageName = "test:blob-slice-test";
const blobData = ["So", " ", "many", " ", "blobs!"];
const blobText = blobData.join("");
const blobType = "text/plain";
const sliceText = "an";
function info(msg) {
sendAsyncMessage(messageName, { op: "info", msg: msg });
}
function ok(condition, name, diag) {
sendAsyncMessage(messageName,
{ op: "ok",
condition: condition,
name: name,
diag: diag });
}
function is(a, b, name) {
let pass = a == b;
let diag = pass ? "" : "got " + a + ", expected " + b;
ok(pass, name, diag);
}
function finish(result) {
sendAsyncMessage(messageName, { op: "done", result: result });
}
function grabAndContinue(arg) {
testGenerator.send(arg);
}
function testSteps() {
addMessageListener(messageName, grabAndContinue);
let message = yield undefined;
let blob = message.data;
ok(blob instanceof Ci.nsIDOMBlob, "Received a Blob");
is(blob.size, blobText.length, "Blob has correct length");
is(blob.type, blobType, "Blob has correct type");
info("Reading blob");
let reader = new FileReader();
reader.addEventListener("load", grabAndContinue);
reader.readAsText(blob);
yield undefined;
is(reader.result, blobText, "Blob has correct data");
let firstSliceStart = blobData[0].length + blobData[1].length;
let firstSliceEnd = firstSliceStart + blobData[2].length;
let slice = blob.slice(firstSliceStart, firstSliceEnd, blobType);
ok(slice instanceof Ci.nsIDOMBlob, "Slice returned a Blob");
is(slice.size, blobData[2].length, "Slice has correct length");
is(slice.type, blobType, "Slice has correct type");
info("Reading slice");
reader = new FileReader();
reader.addEventListener("load", grabAndContinue);
reader.readAsText(slice);
yield undefined;
is(reader.result, blobData[2], "Slice has correct data");
let secondSliceStart = blobData[2].indexOf("a");
let secondSliceEnd = secondSliceStart + sliceText.length;
slice = slice.slice(secondSliceStart, secondSliceEnd, blobType);
ok(slice instanceof Ci.nsIDOMBlob, "Second slice returned a Blob");
is(slice.size, sliceText.length, "Second slice has correct length");
is(slice.type, blobType, "Second slice has correct type");
info("Sending second slice");
finish(slice);
yield undefined;
}
let testGenerator = testSteps();
testGenerator.next();
}
function parentFrameScript(mm) {
const messageName = "test:blob-slice-test";
const blobData = ["So", " ", "many", " ", "blobs!"];
const blobText = blobData.join("");
const blobType = "text/plain";
const sliceText = "an";
function grabAndContinue(arg) {
testGenerator.send(arg);
}
function testSteps() {
let slice = yield undefined;
ok(slice instanceof Blob, "Received a Blob");
is(slice.size, sliceText.length, "Slice has correct size");
is(slice.type, blobType, "Slice has correct type");
let reader = new FileReader();
reader.onload = grabAndContinue;
reader.readAsText(slice);
yield undefined;
is(reader.result, sliceText, "Slice has correct data");
SimpleTest.finish();
yield undefined;
}
let testGenerator = testSteps();
testGenerator.next();
mm.addMessageListener(messageName, function(message) {
let data = message.data;
switch (data.op) {
case "info": {
info(data.msg);
break;
}
case "ok": {
ok(data.condition, data.name, data.diag);
break;
}
case "done": {
testGenerator.send(data.result);
break;
}
default: {
ok(false, "Unknown op: " + data.op);
SimpleTest.finish();
}
}
});
mm.loadFrameScript("data:,(" + childFrameScript.toString() + ")();",
false);
let blob = new Blob(blobData, { type: blobType });
mm.sendAsyncMessage(messageName, blob);
}
function setup() {
info("Got load event");
SpecialPowers.pushPrefEnv(
{ set: [ ["dom.ipc.browser_frames.oop_by_default", true],
["dom.mozBrowserFramesEnabled", true],
["network.disable.ipc.security", true],
["browser.pagethumbnails.capturing_disabled", true] ] },
function() {
info("Prefs set");
SpecialPowers.pushPermissions(
[ { type: "browser", allow: true, context: document } ],
function() {
info("Permissions set");
let iframe = document.createElement("iframe");
SpecialPowers.wrap(iframe).mozbrowser = true;
iframe.id = "iframe";
iframe.src =
"data:text/html,<!DOCTYPE HTML><html><body></body></html>";
iframe.addEventListener("mozbrowserloadend", function() {
info("Starting tests");
let mm = SpecialPowers.getBrowserFrameMessageManager(iframe)
parentFrameScript(mm);
});
document.body.appendChild(iframe);
}
);
}
);
}
SimpleTest.waitForExplicitFinish();
</script>
</body>
</html>