angular2
Version:
Angular 2 - a web framework for modern web apps
45 lines • 4.2 kB
JavaScript
;"use strict";
var lang_1 = require('angular2/src/facade/lang');
var dom_adapter_1 = require('angular2/src/platform/dom/dom_adapter');
/**
* Predicates for use with {@link DebugElement}'s query functions.
*/
var By = (function () {
function By() {
}
/**
* Match all elements.
*
* ## Example
*
* {@example platform/dom/debug/ts/by/by.ts region='by_all'}
*/
By.all = function () { return function (debugElement) { return true; }; };
/**
* Match elements by the given CSS selector.
*
* ## Example
*
* {@example platform/dom/debug/ts/by/by.ts region='by_css'}
*/
By.css = function (selector) {
return function (debugElement) {
return lang_1.isPresent(debugElement.nativeElement) ?
dom_adapter_1.DOM.elementMatches(debugElement.nativeElement, selector) :
false;
};
};
/**
* Match elements that have the given directive present.
*
* ## Example
*
* {@example platform/dom/debug/ts/by/by.ts region='by_directive'}
*/
By.directive = function (type) {
return function (debugElement) { return debugElement.providerTokens.indexOf(type) !== -1; };
};
return By;
}());
exports.By = By;
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