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Unified Diff: messageResponder.js

Issue 29715759: Issue 6440 - Use long-lived connections to listen to extension events (Closed)
Patch Set: Created March 6, 2018, 6:35 p.m.
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Index: messageResponder.js
===================================================================
--- a/messageResponder.js
+++ b/messageResponder.js
@@ -76,7 +76,7 @@
let convertFilter = convertObject.bind(null, ["text"]);
- let changeListeners = new ext.PageMap();
+ let uiPorts = new Map();
let listenedPreferences = Object.create(null);
let listenedFilterChanges = Object.create(null);
let messageTypes = new Map([
@@ -88,8 +88,7 @@
function sendMessage(type, action, ...args)
{
- let pages = changeListeners.keys();
- if (pages.length == 0)
+ if (uiPorts.size == 0)
return;
let convertedArgs = [];
@@ -103,13 +102,12 @@
convertedArgs.push(arg);
}
- for (let page of pages)
+ for (let [uiPort, filters] of uiPorts)
{
- let filters = changeListeners.get(page);
- let actions = filters[type];
+ let actions = filters.get(type);
if (actions && actions.indexOf(action) != -1)
{
- page.sendMessage({
+ uiPort.postMessage({
type: messageTypes.get(type),
action,
args: convertedArgs
@@ -133,7 +131,7 @@
listenedFilterChanges[name] = null;
FilterNotifier.on(name, (...args) =>
{
- sendMessage(type, action, ...args);
+ sendMessage(type, action, args[0]);
a.giammarchi 2018/03/07 08:14:29 I understand you want to keep doors opened in the
Thomas Greiner 2018/03/07 14:05:31 Done.
});
}
}
@@ -213,11 +211,6 @@
return info[message.what];
});
- port.on("app.listen", (message, sender) =>
- {
- getListenerFilters(sender.page).app = message.filter;
- });
-
port.on("app.open", (message, sender) =>
{
if (message.what == "options")
@@ -304,12 +297,6 @@
return errors;
});
- port.on("filters.listen", (message, sender) =>
- {
- getListenerFilters(sender.page).filter = message.filter;
- addFilterListeners("filter", message.filter);
- });
-
port.on("filters.remove", (message, sender) =>
{
let filter = Filter.fromText(message.text);
@@ -328,22 +315,6 @@
return Prefs[message.key];
});
- port.on("prefs.listen", (message, sender) =>
- {
- getListenerFilters(sender.page).pref = message.filter;
- for (let preference of message.filter)
- {
- if (!(preference in listenedPreferences))
- {
- listenedPreferences[preference] = null;
- Prefs.on(preference, () =>
- {
- sendMessage("pref", preference, Prefs[preference]);
- });
- }
- }
- });
-
port.on("prefs.set", (message, sender) =>
{
if (message.key == "notifications_ignoredcategories")
@@ -421,12 +392,6 @@
});
});
- port.on("subscriptions.listen", (message, sender) =>
- {
- getListenerFilters(sender.page).subscription = message.filter;
- addFilterListeners("subscription", message.filter);
- });
-
port.on("subscriptions.remove", (message, sender) =>
{
let subscription = Subscription.fromURL(message.url);
@@ -462,4 +427,64 @@
Synchronizer.execute(subscription, true);
}
});
+
+ function listen(type, filters, newFilter)
+ {
+ switch (type)
+ {
+ case "app":
+ filters.set("app", newFilter);
+ break;
+ case "filters":
+ filters.set("filter", newFilter);
+ addFilterListeners("filter", newFilter);
+ break;
+ case "prefs":
+ filters.set("pref", newFilter);
+ for (let preference of newFilter)
+ {
+ if (!(preference in listenedPreferences))
+ {
+ listenedPreferences[preference] = null;
+ Prefs.on(preference, () =>
+ {
+ sendMessage("pref", preference, Prefs[preference]);
+ });
+ }
+ }
+ break;
+ case "subscriptions":
+ filters.set("subscription", newFilter);
+ addFilterListeners("subscription", newFilter);
+ break;
+ }
+ }
+
+ function onConnect(uiPort)
+ {
+ if (uiPort.name != "ui")
+ return;
+
+ let filters = new Map();
+ uiPorts.set(uiPort, filters);
+
+ uiPort.onDisconnect.addListener(() =>
+ {
+ uiPorts.delete(uiPort);
+ });
+
+ uiPort.onMessage.addListener((message) =>
+ {
+ let [type, action] = message.type.split(".", 2);
a.giammarchi 2018/03/07 08:14:29 WOW, first time in my life I've found a use case f
+
+ // For now we're only using long-lived connections for handling
+ // "*.listen" messages to tackle #6440
+ if (action == "listen")
+ {
+ listen(type, filters, message.filter);
+ }
+ });
+ }
+
+ browser.runtime.onConnect.addListener(onConnect);
})(this);
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