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/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set sts=2 sw=2 et tw=80: */
/* 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";
XPCOMUtils.defineLazyServiceGetter(
this,
"handlerService",
"@mozilla.org/uriloader/handler-service;1",
"nsIHandlerService"
);
XPCOMUtils.defineLazyServiceGetter(
this,
"protocolService",
"@mozilla.org/uriloader/external-protocol-service;1",
"nsIExternalProtocolService"
);
const hasHandlerApp = handlerConfig => {
let protoInfo = protocolService.getProtocolHandlerInfo(
handlerConfig.protocol
);
let appHandlers = protoInfo.possibleApplicationHandlers;
for (let i = 0; i < appHandlers.length; i++) {
let handler = appHandlers.queryElementAt(i, Ci.nsISupports);
if (
handler instanceof Ci.nsIWebHandlerApp &&
handler.uriTemplate === handlerConfig.uriTemplate
) {
return true;
}
}
return false;
};
this.protocolHandlers = class extends ExtensionAPI {
onManifestEntry() {
let { extension } = this;
let { manifest } = extension;
for (let handlerConfig of manifest.protocol_handlers) {
if (hasHandlerApp(handlerConfig)) {
continue;
}
let handler = Cc[
"@mozilla.org/uriloader/web-handler-app;1"
].createInstance(Ci.nsIWebHandlerApp);
handler.name = handlerConfig.name;
handler.uriTemplate = handlerConfig.uriTemplate;
let protoInfo = protocolService.getProtocolHandlerInfo(
handlerConfig.protocol
);
let handlers = protoInfo.possibleApplicationHandlers;
if (protoInfo.preferredApplicationHandler || handlers.length) {
protoInfo.alwaysAskBeforeHandling = true;
} else {
protoInfo.preferredApplicationHandler = handler;
protoInfo.alwaysAskBeforeHandling = false;
}
handlers.appendElement(handler);
handlerService.store(protoInfo);
}
}
onShutdown(isAppShutdown) {
let { extension } = this;
let { manifest } = extension;
if (isAppShutdown) {
return;
}
for (let handlerConfig of manifest.protocol_handlers) {
let protoInfo = protocolService.getProtocolHandlerInfo(
handlerConfig.protocol
);
let appHandlers = protoInfo.possibleApplicationHandlers;
for (let i = 0; i < appHandlers.length; i++) {
let handler = appHandlers.queryElementAt(i, Ci.nsISupports);
if (
handler instanceof Ci.nsIWebHandlerApp &&
handler.uriTemplate === handlerConfig.uriTemplate
) {
appHandlers.removeElementAt(i);
if (protoInfo.preferredApplicationHandler === handler) {
protoInfo.preferredApplicationHandler = null;
protoInfo.alwaysAskBeforeHandling = true;
}
handlerService.store(protoInfo);
break;
}
}
}
}
};
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