@material/top-app-bar
Version:
The Material Components for the web top app bar component
104 lines • 4.38 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 { cssClasses } from '../constants';
import { MDCTopAppBarBaseFoundation } from '../foundation';
var MDCShortTopAppBarFoundation = /** @class */ (function (_super) {
__extends(MDCShortTopAppBarFoundation, _super);
/* istanbul ignore next: optional argument is not a branch statement */
function MDCShortTopAppBarFoundation(adapter) {
var _this = _super.call(this, adapter) || this;
_this.collapsed = false;
_this.isAlwaysCollapsed = false;
return _this;
}
Object.defineProperty(MDCShortTopAppBarFoundation.prototype, "isCollapsed", {
// Public visibility for backward compatibility.
get: function () {
return this.collapsed;
},
enumerable: false,
configurable: true
});
MDCShortTopAppBarFoundation.prototype.init = function () {
_super.prototype.init.call(this);
if (this.adapter.getTotalActionItems() > 0) {
this.adapter.addClass(cssClasses.SHORT_HAS_ACTION_ITEM_CLASS);
}
// If initialized with SHORT_COLLAPSED_CLASS, the bar should always be collapsed
this.setAlwaysCollapsed(this.adapter.hasClass(cssClasses.SHORT_COLLAPSED_CLASS));
};
/**
* Set if the short top app bar should always be collapsed.
*
* @param value When `true`, bar will always be collapsed. When `false`, bar may collapse or expand based on scroll.
*/
MDCShortTopAppBarFoundation.prototype.setAlwaysCollapsed = function (value) {
this.isAlwaysCollapsed = !!value;
if (this.isAlwaysCollapsed) {
this.collapse();
}
else {
// let maybeCollapseBar determine if the bar should be collapsed
this.maybeCollapseBar();
}
};
MDCShortTopAppBarFoundation.prototype.getAlwaysCollapsed = function () {
return this.isAlwaysCollapsed;
};
/**
* Scroll handler for applying/removing the collapsed modifier class on the short top app bar.
*/
MDCShortTopAppBarFoundation.prototype.handleTargetScroll = function () {
this.maybeCollapseBar();
};
MDCShortTopAppBarFoundation.prototype.maybeCollapseBar = function () {
if (this.isAlwaysCollapsed) {
return;
}
var currentScroll = this.adapter.getViewportScrollY();
if (currentScroll <= 0) {
if (this.collapsed) {
this.uncollapse();
}
}
else {
if (!this.collapsed) {
this.collapse();
}
}
};
MDCShortTopAppBarFoundation.prototype.uncollapse = function () {
this.adapter.removeClass(cssClasses.SHORT_COLLAPSED_CLASS);
this.collapsed = false;
};
MDCShortTopAppBarFoundation.prototype.collapse = function () {
this.adapter.addClass(cssClasses.SHORT_COLLAPSED_CLASS);
this.collapsed = true;
};
return MDCShortTopAppBarFoundation;
}(MDCTopAppBarBaseFoundation));
export { MDCShortTopAppBarFoundation };
// tslint:disable-next-line:no-default-export Needed for backward compatibility with MDC Web v0.44.0 and earlier.
export default MDCShortTopAppBarFoundation;
//# sourceMappingURL=foundation.js.map