@angular/material
Version:
Angular Material
56 lines • 8.27 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.isHammerJsUsedInTemplate = void 0;
const schematics_1 = require("@angular/cdk/schematics");
/** List of known events which are supported by the "HammerGesturesPlugin". */
const STANDARD_HAMMERJS_EVENTS = [
// Events supported by the "HammerGesturesPlugin". See:
// angular/angular/blob/0119f46d/packages/platform-browser/src/dom/events/hammer_gestures.ts#L19
'pan', 'panstart', 'panmove', 'panend', 'pancancel', 'panleft',
'panright', 'panup', 'pandown', 'pinch', 'pinchstart', 'pinchmove',
'pinchend', 'pinchcancel', 'pinchin', 'pinchout', 'press', 'pressup',
'rotate', 'rotatestart', 'rotatemove', 'rotateend', 'rotatecancel', 'swipe',
'swipeleft', 'swiperight', 'swipeup', 'swipedown', 'tap',
];
/** List of events which are provided by the deprecated Angular Material "GestureConfig". */
const CUSTOM_MATERIAL_HAMMERJS_EVENS = ['longpress', 'slide', 'slidestart', 'slideend', 'slideright', 'slideleft'];
/**
* Parses the specified HTML and searches for elements with Angular outputs listening to
* one of the known HammerJS events. This check naively assumes that the bindings never
* match on a component output, but only on the Hammer plugin.
*/
function isHammerJsUsedInTemplate(html) {
const document = schematics_1.parse5.parseFragment(html, { sourceCodeLocationInfo: true });
let customEvents = false;
let standardEvents = false;
const visitNodes = nodes => {
nodes.forEach((node) => {
if (node.attrs) {
for (let attr of node.attrs) {
if (!customEvents && CUSTOM_MATERIAL_HAMMERJS_EVENS.some(e => `(${e})` === attr.name)) {
customEvents = true;
}
if (!standardEvents && STANDARD_HAMMERJS_EVENTS.some(e => `(${e})` === attr.name)) {
standardEvents = true;
}
}
}
// Do not continue traversing the AST if both type of HammerJS
// usages have been detected already.
if (node.childNodes && (!customEvents || !standardEvents)) {
visitNodes(node.childNodes);
}
});
};
visitNodes(document.childNodes);
return { customEvents, standardEvents };
}
exports.isHammerJsUsedInTemplate = isHammerJsUsedInTemplate;
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