77 lines
2.1 KiB
JavaScript
77 lines
2.1 KiB
JavaScript
define([
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'/common/common-util.js',
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], function (Util) {
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var module = {};
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module.create = function (Common, onLocal) {
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var exp = {};
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var metadataMgr = Common.getMetadataMgr();
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var privateData = metadataMgr.getPrivateData();
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var share = Util.find(privateData, ['settings', 'general', 'cursor', 'share']);
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var show = Util.find(privateData, ['settings', 'general', 'cursor', 'show']);
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var messageHandlers = [];
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exp.onCursorUpdate = function (handler) {
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messageHandlers.push(handler);
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};
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var onMessage = function (data) {
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if (show === false) { return; }
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messageHandlers.forEach(function (h) {
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try {
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h(data);
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} catch (e) {
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console.error(e);
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}
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});
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};
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var onDegraded = function (data) {
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if (data.degraded) {
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// Enter degraded mode
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onMessage({
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reset: true
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});
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metadataMgr.setDegraded(true);
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return void metadataMgr.refresh();
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}
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setTimeout(function () {
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metadataMgr.setDegraded(false);
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metadataMgr.refresh();
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setTimeout(onLocal);
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});
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};
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var onEvent = function (obj) {
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var cmd = obj.ev;
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var data = obj.data;
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if (cmd === 'DEGRADED') {
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onDegraded(data);
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return;
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}
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if (cmd === 'MESSAGE') {
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onMessage(data);
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return;
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}
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};
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var module = Common.makeUniversal('cursor', {
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onEvent: onEvent
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});
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var execCommand = module.execCommand;
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exp.updateCursor = function (obj) {
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if (share === false) { return; }
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execCommand('UPDATE', obj, function (err) {
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if (err) { console.error(err); }
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});
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};
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return exp;
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};
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return module;
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});
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