ngx-bootstrap
Version:
Angular Bootstrap
156 lines • 5.88 kB
JavaScript
import { AnimationBuilder } from '@angular/animations';
import { Directive, ElementRef, EventEmitter, HostBinding, Input, Output, Renderer2 } from '@angular/core';
import { collapseAnimation, expandAnimation } from './collapse-animations';
export class CollapseDirective {
constructor(_el, _renderer, _builder) {
this._el = _el;
this._renderer = _renderer;
/** This event fires as soon as content collapses */
this.collapsed = new EventEmitter();
/** This event fires when collapsing is started */
this.collapses = new EventEmitter();
/** This event fires as soon as content becomes visible */
this.expanded = new EventEmitter();
/** This event fires when expansion is started */
this.expands = new EventEmitter();
// shown
this.isExpanded = true;
this.collapseNewValue = true;
// hidden
this.isCollapsed = false;
// stale state
this.isCollapse = true;
// animation state
this.isCollapsing = false;
/** turn on/off animation */
this.isAnimated = false;
this._display = 'block';
this._stylesLoaded = false;
this._COLLAPSE_ACTION_NAME = 'collapse';
this._EXPAND_ACTION_NAME = 'expand';
this._factoryCollapseAnimation = _builder.build(collapseAnimation);
this._factoryExpandAnimation = _builder.build(expandAnimation);
}
set display(value) {
if (!this.isAnimated) {
this._renderer.setStyle(this._el.nativeElement, 'display', value);
return;
}
this._display = value;
if (value === 'none') {
this.hide();
return;
}
this.show();
}
/** A flag indicating visibility of content (shown or hidden) */
set collapse(value) {
this.collapseNewValue = value;
if (!this._player || this._isAnimationDone) {
this.isExpanded = value;
this.toggle();
}
}
get collapse() {
return this.isExpanded;
}
ngAfterViewChecked() {
this._stylesLoaded = true;
if (!this._player || !this._isAnimationDone) {
return;
}
this._player.reset();
this._renderer.setStyle(this._el.nativeElement, 'height', '*');
}
/** allows to manually toggle content visibility */
toggle() {
if (this.isExpanded) {
this.hide();
}
else {
this.show();
}
}
/** allows to manually hide content */
hide() {
this.isCollapsing = true;
this.isExpanded = false;
this.isCollapsed = true;
this.isCollapsing = false;
this.collapses.emit(this);
this._isAnimationDone = false;
this.animationRun(this.isAnimated, this._COLLAPSE_ACTION_NAME)(() => {
this._isAnimationDone = true;
if (this.collapseNewValue !== this.isCollapsed && this.isAnimated) {
this.show();
return;
}
this.collapsed.emit(this);
this._renderer.setStyle(this._el.nativeElement, 'display', 'none');
});
}
/** allows to manually show collapsed content */
show() {
this._renderer.setStyle(this._el.nativeElement, 'display', this._display);
this.isCollapsing = true;
this.isExpanded = true;
this.isCollapsed = false;
this.isCollapsing = false;
this.expands.emit(this);
this._isAnimationDone = false;
this.animationRun(this.isAnimated, this._EXPAND_ACTION_NAME)(() => {
this._isAnimationDone = true;
if (this.collapseNewValue !== this.isCollapsed && this.isAnimated) {
this.hide();
return;
}
this.expanded.emit(this);
this._renderer.removeStyle(this._el.nativeElement, 'overflow');
});
}
animationRun(isAnimated, action) {
if (!isAnimated || !this._stylesLoaded) {
return (callback) => callback();
}
this._renderer.setStyle(this._el.nativeElement, 'overflow', 'hidden');
this._renderer.addClass(this._el.nativeElement, 'collapse');
const factoryAnimation = (action === this._EXPAND_ACTION_NAME)
? this._factoryExpandAnimation
: this._factoryCollapseAnimation;
if (this._player) {
this._player.destroy();
}
this._player = factoryAnimation.create(this._el.nativeElement);
this._player.play();
return (callback) => { var _a; return (_a = this._player) === null || _a === void 0 ? void 0 : _a.onDone(callback); };
}
}
CollapseDirective.decorators = [
{ type: Directive, args: [{
selector: '[collapse]',
exportAs: 'bs-collapse',
// eslint-disable-next-line @angular-eslint/no-host-metadata-property
host: {
'[class.collapse]': 'true'
}
},] }
];
CollapseDirective.ctorParameters = () => [
{ type: ElementRef },
{ type: Renderer2 },
{ type: AnimationBuilder }
];
CollapseDirective.propDecorators = {
collapsed: [{ type: Output }],
collapses: [{ type: Output }],
expanded: [{ type: Output }],
expands: [{ type: Output }],
isExpanded: [{ type: HostBinding, args: ['class.in',] }, { type: HostBinding, args: ['class.show',] }, { type: HostBinding, args: ['attr.aria-expanded',] }],
isCollapsed: [{ type: HostBinding, args: ['attr.aria-hidden',] }],
isCollapse: [{ type: HostBinding, args: ['class.collapse',] }],
isCollapsing: [{ type: HostBinding, args: ['class.collapsing',] }],
display: [{ type: Input }],
isAnimated: [{ type: Input }],
collapse: [{ type: Input }]
};
//# sourceMappingURL=collapse.directive.js.map