FarmMapsLib/projects/common/src/fm/components/side-panel/side-panel.component.ts

91 lines
2.7 KiB
TypeScript

import { Component, Input,Output,ViewChild,EventEmitter, ElementRef,OnChanges,SimpleChanges,HostListener,ChangeDetectorRef } from '@angular/core';
@Component({
selector: 'fm-side-panel',
templateUrl: 'side-panel.component.html',
styleUrls: ['side-panel.component.scss']
})
export class SidePanelComponent implements OnChanges {
@Input() public visible: boolean;
@Input() public collapsed: boolean;
@Input() public collapsable: boolean;
@Input() public resizeable: boolean = false;
@Input() public left: boolean = false;
@Output() onResize: EventEmitter<number> = new EventEmitter<number>();
@ViewChild("resizeGrip") elementView: ElementRef;
public mobile:boolean = true;
private parentHeight:number = 0;
public top = "100%";
private resizeTop:number=50;
public resizing:boolean=false;
constructor(private element: ElementRef,private ref: ChangeDetectorRef) {
this.collapsable = false;
this.setTop();
}
checkMobile():boolean {
let size = parseFloat(getComputedStyle(document.documentElement).width);
let rem = parseFloat(getComputedStyle(document.documentElement).fontSize);
let threshold = 40 * rem;
return !(size>threshold);
}
setTop() {
this.mobile = this.left?false: this.checkMobile();
this.resizeTop = this.mobile?50:0;
this.onResize.emit(this.resizeTop);
this.top = (this.visible?this.resizeTop: (this.mobile? 100:0)) + "%";
}
ngAfterViewInit() {
this.parentHeight = this.element.nativeElement.offsetParent.clientHeight;
this.setTop();
}
handleToggleClick(event) {
if (this.collapsable) {
this.collapsed = !this.collapsed;
}
}
handleStartGripDrag(event:DragEvent|TouchEvent) {
this.resizing=true;
if(event instanceof DragEvent) {
var crt = new Image();
crt.style.display = "none";
document.body.appendChild(crt);
event.dataTransfer.setDragImage(crt,0,0);
}
}
handleEndGripDrag() {
this.resizing = false;
}
handleGripDrag(event:DragEvent|TouchEvent) {
var clientY = 0;
if((event instanceof TouchEvent)) {
clientY = (event as TouchEvent).changedTouches[0].clientY;
} else {
clientY=(event as DragEvent).clientY;
}
this.resizeTop = Math.min(98, Math.max(0, clientY / (this.parentHeight / 100)));
this.onResize.emit(this.resizeTop);
this.top = (this.visible? this.resizeTop:(this.mobile? 100:0)) + "%";
}
ngOnChanges(changes: SimpleChanges) {
if(changes.visible) {
this.top = (changes.visible.currentValue?this.resizeTop:(this.mobile? 100:0)) + "%";
}
}
@HostListener('window:resize', ['$event'])
handleResize(event) {
this.setTop();
}
}