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Move Add-on SDK source to toolkit/jetpack

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NTD 2018-02-09 06:46:43 -05:00 • committed by Roy Tam
commit 23b67db438
993 changed files with 484 additions and 100663 deletions
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120
addon-sdk/source/lib/dev/frame-script.js
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@ -1,120 +0,0 @@
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
(function({content, sendSyncMessage, addMessageListener, sendAsyncMessage}) {
const Cc = Components.classes;
const Ci = Components.interfaces;
const observerService = Cc["@mozilla.org/observer-service;1"]
.getService(Ci.nsIObserverService);
const channels = new Map();
const handles = new WeakMap();
// Takes remote port handle and creates a local one.
// also set's up a messaging channel between them.
// This is temporary workaround until Bug 914974 is fixed
// and port can be transfered through message manager.
const demarshal = (handle) => {
if (handle.type === "MessagePort") {
if (!channels.has(handle.id)) {
const channel = new content.MessageChannel();
channels.set(handle.id, channel);
handles.set(channel.port1, handle);
channel.port1.onmessage = onOutPort;
}
return channels.get(handle.id).port2;
}
return null;
};
const onOutPort = event => {
const handle = handles.get(event.target);
sendAsyncMessage("sdk/port/message", {
port: handle,
message: event.data
});
};
const onInPort = ({data}) => {
const channel = channels.get(data.port.id);
if (channel)
channel.port1.postMessage(data.message);
};
const onOutEvent = event =>
sendSyncMessage("sdk/event/" + event.type,
{ type: event.type,
data: event.data });
const onInMessage = (message) => {
const {type, data, origin, bubbles, cancelable, ports} = message.data;
const event = new content.MessageEvent(type, {
bubbles: bubbles,
cancelable: cancelable,
data: data,
origin: origin,
target: content,
source: content,
ports: ports.map(demarshal)
});
content.dispatchEvent(event);
};
const onReady = event => {
channels.clear();
};
addMessageListener("sdk/event/message", onInMessage);
addMessageListener("sdk/port/message", onInPort);
const observer = {
handleEvent: ({target, type}) => {
observer.observe(target, type);
},
observe: (document, topic, data) => {
// When frame associated with message manager is removed from document `docShell`
// is set to `null` but observer is still kept alive. At this point accesing
// `content.document` throws "can't access dead object" exceptions. In order to
// avoid leaking observer and logged errors observer is going to be removed when
// `docShell` is set to `null`.
if (!docShell) {
observerService.removeObserver(observer, topic);
}
else if (document === content.document) {
if (topic.endsWith("-document-interactive")) {
sendAsyncMessage("sdk/event/ready", {
type: "ready",
readyState: document.readyState,
uri: document.documentURI
});
}
if (topic.endsWith("-document-loaded")) {
sendAsyncMessage("sdk/event/load", {
type: "load",
readyState: document.readyState,
uri: document.documentURI
});
}
if (topic === "unload") {
channels.clear();
sendAsyncMessage("sdk/event/unload", {
type: "unload",
readyState: "uninitialized",
uri: document.documentURI
});
}
}
}
};
observerService.addObserver(observer, "content-document-interactive", false);
observerService.addObserver(observer, "content-document-loaded", false);
observerService.addObserver(observer, "chrome-document-interactive", false);
observerService.addObserver(observer, "chrome-document-loaded", false);
addEventListener("unload", observer, false);
})(this);