32 lines
891 B
JavaScript
32 lines
891 B
JavaScript
const invariant = (truthy, error) => {
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if (!truthy) throw new Error(error);
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};
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export function getCodeMirrorInstance(container) {
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return function (selector) {
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const cmService = container.lookup('service:code-mirror');
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const element = document.querySelector(selector);
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invariant(element, `Selector ${selector} matched no elements`);
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const cm = cmService.instanceFor(element.id);
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invariant(cm, `No registered CodeMirror instance for ${selector}`);
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return cm;
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};
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}
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export default function setupCodeMirror(hooks) {
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hooks.beforeEach(function () {
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this.getCodeMirrorInstance = getCodeMirrorInstance(this.owner);
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// Expose to window for access from page objects
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window.getCodeMirrorInstance = this.getCodeMirrorInstance;
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});
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hooks.afterEach(function () {
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delete window.getCodeMirrorInstance;
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delete this.getCodeMirrorInstance;
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});
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}
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