[英]Message passing between trusted page content and addon
我無法在受信任的頁面工作者腳本和插件之間傳遞消息。
main.js:
var pageWorkers = require("sdk/page-worker");
var self = require("sdk/self");
// Create a page worker that loads Wikipedia:
pageWorkers.Page({
contentURL: self.data.url("html/worker.html"),
onAttach: function(worker) {
console.log("within onAttach");
worker.port.on("message", function() {
console.log("Message received");
});
worker.port.on("message", function(message) {
console.log("Message received1");
});
},
onReady: function(worker) {
console.log("within onReady");
worker.port.on("message", function() {
console.log("Message received");
});
}
});
worker.html:
<html>
<head>
<script src="../js/worker.js"></script>
</head>
<body>
</body>
</html>
worker.js:
console.log("trying to emit message");
addon.port.emit("message");
addon.port.emit("message", "value");
console.log("tried to emit message");
在main.js中,如果我在pageWorkers.Page()
調用之外嘗試以下操作:
pageWorkers.port.on("message", function() {
console.log("Message received");
});
我得到以下異常:
Message: TypeError: pageWorkers.port is undefined
任何幫助,將不勝感激。 我嘗試使用postMessages無濟於事。 如果需要,我也可以添加該代碼。
頁面工作程序(如選項卡附加)和pageMods不同,沒有onAttach
函數。 它們也沒有onReady
,因為當HTML准備就緒時,contentScriptFile會自動附加。
var worker = pageWorkers.Page({
contentURL: self.data.url("html/worker.html")
});
worker.port.on("message", function() {
console.log("Message received");
});
//If your events have the same name then they're the same event,
//irrespective of arguments passed
worker.port.on("message1", function(message) {
console.log("Message received1");
});
console.log("trying to emit message");
addon.port.emit("message");
console.log("trying to emit message1");
addon.port.emit("message1", "value");
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