@material/tab-indicator
Version:
The Material Components for the web tab indicator component
60 lines • 3.49 kB
JavaScript
/**
* @license
* Copyright 2018 Google Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
import { __extends } from "tslib";
import { MDCTabIndicatorFoundation } from './foundation';
/* istanbul ignore next: subclass is not a branch statement */
var MDCSlidingTabIndicatorFoundation = /** @class */ (function (_super) {
__extends(MDCSlidingTabIndicatorFoundation, _super);
function MDCSlidingTabIndicatorFoundation() {
return _super !== null && _super.apply(this, arguments) || this;
}
MDCSlidingTabIndicatorFoundation.prototype.activate = function (previousIndicatorClientRect) {
// Early exit if no indicator is present to handle cases where an indicator
// may be activated without a prior indicator state
if (!previousIndicatorClientRect) {
this.adapter.addClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);
return;
}
// This animation uses the FLIP approach. You can read more about it at the link below:
// https://aerotwist.com/blog/flip-your-animations/
// Calculate the dimensions based on the dimensions of the previous indicator
var currentClientRect = this.computeContentClientRect();
var widthDelta = previousIndicatorClientRect.width / currentClientRect.width;
var xPosition = previousIndicatorClientRect.left - currentClientRect.left;
this.adapter.addClass(MDCTabIndicatorFoundation.cssClasses.NO_TRANSITION);
this.adapter.setContentStyleProperty('transform', "translateX(" + xPosition + "px) scaleX(" + widthDelta + ")");
// Force repaint before updating classes and transform to ensure the transform properly takes effect
this.computeContentClientRect();
this.adapter.removeClass(MDCTabIndicatorFoundation.cssClasses.NO_TRANSITION);
this.adapter.addClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);
this.adapter.setContentStyleProperty('transform', '');
};
MDCSlidingTabIndicatorFoundation.prototype.deactivate = function () {
this.adapter.removeClass(MDCTabIndicatorFoundation.cssClasses.ACTIVE);
};
return MDCSlidingTabIndicatorFoundation;
}(MDCTabIndicatorFoundation));
export { MDCSlidingTabIndicatorFoundation };
// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.
export default MDCSlidingTabIndicatorFoundation;
//# sourceMappingURL=sliding-foundation.js.map