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onteardown-test
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| <!doctype html> | |
| <script src="./node_modules/steal/steal.js"></script> |
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| import Observation from "can-observation"; | |
| import singleReference from "can-util/js/single-reference/single-reference"; | |
| import canReflect from "can-reflect"; | |
| import canSymbol from "can-symbol"; | |
| import canEvent from "can-event"; | |
| var getValueSymbol = "can.getValue"; | |
| var onValueSymbol = "can.onValue"; | |
| var offValueSymbol = "can.offValue"; | |
| var noop = function() {}; | |
| var event = "click"; | |
| var el = document.createElement('div'); | |
| var get = function() { return "hello"; }; | |
| var obs = new Observation(get); | |
| obs[canSymbol.for(getValueSymbol)] = get; | |
| obs[canSymbol.for(onValueSymbol)] = function(updater) { | |
| var translationHandler = function() { | |
| updater(get()); | |
| }; | |
| singleReference.set(updater, this, translationHandler); | |
| if (event === "radiochange") { | |
| canEvent.on.call(el, "change", translationHandler); | |
| } | |
| canEvent.on.call(el, event, translationHandler); | |
| }; | |
| obs[canSymbol.for(offValueSymbol)] = function(updater) { | |
| var translationHandler = singleReference.getAndDelete(updater, this); | |
| if (event === "radiochange") { | |
| canEvent.off.call(el, "change", translationHandler); | |
| } | |
| canEvent.off.call(el, event, translationHandler); | |
| }; | |
| var unbindUpdate = function(observable, updater) { | |
| if(observable && observable[canSymbol.for(getValueSymbol)] && typeof updater === "function") { | |
| canReflect.offValue(observable, updater); | |
| } | |
| }; | |
| unbindUpdate(obs, noop); |
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| { | |
| "name": "single-ref-test", | |
| "version": "1.0.0", | |
| "description": "", | |
| "main": "index.js", | |
| "scripts": { | |
| "test": "echo \"Error: no test specified\" && exit 1" | |
| }, | |
| "keywords": [], | |
| "author": "", | |
| "license": "MIT", | |
| "dependencies": { | |
| "can-event": "^3.7.6", | |
| "can-observation": "^3.3.6", | |
| "can-reflect": "^1.13.2", | |
| "can-symbol": "^1.6.0", | |
| "can-util": "^3.11.2", | |
| "steal": "^1.6.4" | |
| } | |
| } |
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