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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>web_channel_test</title>
</head>
<body>
<script>
var IFRAME_SRC_ROOT =
"http://mochi.test:8888" +
location.pathname.replace("web_channel.html", "web_channel_iframe.html");
window.onload = function() {
var testName = window.location.search.replace(/^\?/, "");
switch (testName) {
case "generic":
test_generic();
break;
case "twoway":
test_twoWay();
break;
case "multichannel":
test_multichannel();
break;
case "iframe":
test_iframe();
break;
case "iframe_pre_redirect":
test_iframe_pre_redirect();
break;
case "unsolicited":
test_unsolicited();
break;
case "bubbles":
test_bubbles();
break;
case "object":
test_object();
break;
case "error_thrown":
test_error_thrown();
break;
case "error_invalid_channel":
test_error_invalid_channel();
break;
default:
throw new Error(`INVALID TEST NAME ${testName}`);
}
};
function test_generic() {
var event = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "generic",
message: {
something: {
nested: "hello",
},
},
}),
});
window.dispatchEvent(event);
}
function test_twoWay() {
var firstMessage = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "twoway",
message: {
command: "one",
},
}),
});
window.addEventListener("WebChannelMessageToContent", function(e) {
var secondMessage = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "twoway",
message: {
command: "two",
detail: e.detail.message,
},
}),
});
if (!e.detail.message.error) {
window.dispatchEvent(secondMessage);
}
}, true);
window.dispatchEvent(firstMessage);
}
function test_multichannel() {
var event1 = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "wrongchannel",
message: {},
}),
});
var event2 = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "multichannel",
message: {},
}),
});
window.dispatchEvent(event1);
window.dispatchEvent(event2);
}
function test_iframe() {
// Note that this message is the response to the message sent
// by the iframe! This is bad, as this page is *not* trusted.
window.addEventListener("WebChannelMessageToContent", function(e) {
// the test parent will fail if the echo message is received.
echoEventToChannel(e, "echo");
});
// only attach the iframe for the iframe test to avoid
// interfering with other tests.
var iframe = document.createElement("iframe");
iframe.setAttribute("src", IFRAME_SRC_ROOT + "?iframe");
document.body.appendChild(iframe);
}
function test_iframe_pre_redirect() {
var iframe = document.createElement("iframe");
iframe.setAttribute("src", IFRAME_SRC_ROOT + "?iframe_pre_redirect");
document.body.appendChild(iframe);
}
function test_unsolicited() {
// echo any unsolicted events back to chrome.
window.addEventListener("WebChannelMessageToContent", function(e) {
echoEventToChannel(e, "echo");
}, true);
}
function test_bubbles() {
var event = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "not_a_window",
message: {
command: "start",
},
}),
});
var nonWindowTarget = document.getElementById("not_a_window");
nonWindowTarget.addEventListener("WebChannelMessageToContent", function(e) {
echoEventToChannel(e, "not_a_window");
}, true);
nonWindowTarget.dispatchEvent(event);
}
function test_object() {
let objectMessage = new window.CustomEvent("WebChannelMessageToChrome", {
detail: {
id: "objects",
message: { type: "object" },
},
});
let stringMessage = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "objects",
message: { type: "string" },
}),
});
// Test fails if objectMessage is received, we send stringMessage to know
// when we should stop listening for objectMessage
window.dispatchEvent(objectMessage);
window.dispatchEvent(stringMessage);
}
function test_error_thrown() {
var event = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "error",
message: {
command: "oops",
},
}),
});
// echo the response back to chrome - chrome will check it is the
// expected error.
window.addEventListener("WebChannelMessageToContent", function(e) {
echoEventToChannel(e, "echo");
}, true);
window.dispatchEvent(event);
}
function test_error_invalid_channel() {
var event = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: "invalid-channel",
message: {
command: "oops",
},
}),
});
// echo the response back to chrome - chrome will check it is the
// expected error.
window.addEventListener("WebChannelMessageToContent", function(e) {
echoEventToChannel(e, "echo");
}, true);
window.dispatchEvent(event);
}
function echoEventToChannel(e, channelId) {
var echoedEvent = new window.CustomEvent("WebChannelMessageToChrome", {
detail: JSON.stringify({
id: channelId,
message: e.detail.message,
}),
});
e.target.dispatchEvent(echoedEvent);
}
</script>
<div id="not_a_window"></div>
</body>
</html>
|
