forked from mirrors/gecko-dev
43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
/* global RPMRemoveMessageListener:false, RPMAddMessageListener:false, RPMSendAsyncMessage:false */
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var pktPanelMessaging = (function() {
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function removeMessageListener(messageId, callback) {
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RPMRemoveMessageListener(messageId, callback);
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}
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function addMessageListener(messageId, callback = () => {}) {
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RPMAddMessageListener(messageId, callback);
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}
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function sendMessage(messageId, payload = {}, callback) {
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if (callback) {
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// If we expect something back, we use RPMSendAsyncMessage and not RPMSendQuery.
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// Even though RPMSendQuery returns something, our frame could be closed at any moment,
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// and we don't want to close a RPMSendQuery promise loop unexpectedly.
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// So instead we setup a response event.
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const responseMessageId = `${messageId}_response`;
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var responseListener = function(responsePayload) {
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callback(responsePayload);
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removeMessageListener(responseMessageId, responseListener);
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};
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addMessageListener(responseMessageId, responseListener);
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}
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// Send message
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RPMSendAsyncMessage(messageId, payload);
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}
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function log() {
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RPMSendAsyncMessage("PKT_log", arguments);
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}
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/**
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* Public functions
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*/
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return {
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log,
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addMessageListener,
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sendMessage,
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};
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})();
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