Question

我无法在受信任的页面工作者脚本和插件之间传递消息。

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()电话之外尝试以下内容：

pageWorkers.port.on("message", function() {
        console.log("Message received");
});

我得到以下异常：

Message: TypeError: pageWorkers.port is undefined

任何帮助将不胜感激。我试过使用postMessages无济于事。如果被问到，我也可以添加该代码。

Answer 1

页面工作者，如标签附加，与pageMods不同，没有onAttach功能。它们也没有onReady，因为在HTML准备好后会自动附加contentScriptFile。

main.js

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");
});

worker.js

console.log("trying to emit message");
addon.port.emit("message");
console.log("trying to emit message1");
addon.port.emit("message1", "value");

在可信页面内容和插件之间传递消息

1 个答案:

main.js

worker.js