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Add webcomponents polyfill and load official framework API script

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hensm
2019-03-20 20:26:30 +00:00
parent 04bf7a209d
commit 2a327573da
5 changed files with 303 additions and 9 deletions
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39
ext/src/shim/index.ts
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@@ -13,6 +13,22 @@ if (!_window.chrome) {
_window.chrome.cast = cast;
const CAST_FRAMEWORK_SCRIPT_URL =
"https://www.gstatic.com/cast/sdk/libs/sender/1.0/cast_framework.js";
let bridgeInfo: any;
let scriptLoaded = false;
// Call page's API loaded function if defined
function callPageReadyFunction () {
const readyFunction = _window.__onGCastApiAvailable;
if (readyFunction && typeof readyFunction === "function") {
readyFunction(bridgeInfo && bridgeInfo.isVersionCompatible);
}
}
/**
* If loaded within a page via a <script> element,
* document.currentScript should exist and we can check its
@@ -29,9 +45,24 @@ if (document.currentScript) {
_window.cast = {};
}
const scriptElement = document.createElement("script");
scriptElement.src = CAST_FRAMEWORK_SCRIPT_URL;
(document.head || document.documentElement).append(scriptElement);
scriptElement.addEventListener("load", ev => {
if (bridgeInfo) {
callPageReadyFunction();
}
scriptLoaded = true;
});
/*
// TODO: Finish cast.framework and replace Google's implementation
import("./framework").then(framework => {
_window.cast.framework = framework.default;
});
*/
}
}
@@ -39,12 +70,10 @@ if (document.currentScript) {
onMessage(message => {
switch (message.subject) {
case "shim:/initialized": {
const bridgeInfo = message.data;
bridgeInfo = message.data;
// Call page's API loaded function if defined
const readyFunction = _window.__onGCastApiAvailable;
if (readyFunction && typeof readyFunction === "function") {
readyFunction(bridgeInfo && bridgeInfo.isVersionCompatible);
if (!scriptLoaded) {
callPageReadyFunction();
}
break;