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import {AfterViewInit, Directive, ElementRef, Input, OnDestroy} from '@angular/core';
import {DomHandler} from '../domhandler';
import {PlxButtonState} from './button-state';
@Directive({selector: '[pxButton]', providers: [DomHandler]})
export class PlxButtonDirective implements AfterViewInit, OnDestroy {
@Input() iconPos: string = 'left';
@Input() cornerStyleClass: string = 'ui-corner-all';
_label: string;
_loadinglabel: string;
_icon: string;
_state: number;
initialized: boolean;
constructor(
public el: ElementRef, public domHandler: DomHandler) {}
ngAfterViewInit() {
this.domHandler.addMultipleClasses(
this.el.nativeElement, this.getStyleClass());
if (this.icon) {
let iconElement = document.createElement('span');
let iconPosClass = (this.iconPos === 'right') ? 'ui-button-icon-right' :
'ui-button-icon-left';
iconElement.className =
iconPosClass + ' ui-c iconfont plx-icon-' + this.icon;
this.el.nativeElement.appendChild(iconElement);
}
let iconAnimationElement = document.createElement('span');
iconAnimationElement.className =
'ui-button-icon-left ui-c iconfont plx-icon-circle-o-notch plx-spin';
iconAnimationElement.style.display = 'none';
this.el.nativeElement.appendChild(iconAnimationElement);
let labelElement = document.createElement('span');
labelElement.className = 'ui-button-text ui-c';
labelElement.appendChild(document.createTextNode(this.label || ''));
this.el.nativeElement.appendChild(labelElement);
if (this.state) {
let spanElement =
this.domHandler.findSingle(this.el.nativeElement, '.ui-button-text');
if (this.state === PlxButtonState.DOING) {
if (spanElement) {
spanElement.innerText = this.loadinglabel || 'loading';
}
this.el.nativeElement.disabled = true;
this.setIconELement(true);
} else {
spanElement.innerText = this.label || '';
this.el.nativeElement.disabled = false;
this.setIconELement(false);
}
}
this.initialized = true;
}
getStyleClass(): string {
let styleClass =
'ui-button ui-widget ui-state-default ' + this.cornerStyleClass;
if (this.icon) {
if (this.label !== null && this.label !== undefined) {
if (this.iconPos === 'left') {
styleClass = styleClass + ' ui-button-text-icon-left';
} else {
styleClass = styleClass + ' ui-button-text-icon-right';
}
} else {
styleClass = styleClass + ' ui-button-icon-only';
}
} else {
styleClass = styleClass + ' ui-button-text-only';
}
return styleClass;
}
setIconELement(isShowAnimation: boolean) {
let iconLeftElement = this.domHandler.findSingle(
this.el.nativeElement, '.ui-button-icon-left.iconfont');
if (iconLeftElement) {
iconLeftElement.style.display = isShowAnimation ? 'none' : 'inline-block';
}
let iconRightElement = this.domHandler.findSingle(
this.el.nativeElement, '.ui-button-icon-left.iconfont');
if (iconRightElement) {
iconRightElement.style.display =
isShowAnimation ? 'none' : 'inline-block';
}
let iconAnimationElement = this.domHandler.findSingle(
this.el.nativeElement, '.iconfont.plx-icon-circle-o-notch.plx-spin');
if (iconAnimationElement) {
iconAnimationElement.style.display =
isShowAnimation ? 'inline-block' : 'none';
}
}
@Input()
get label(): string {
return this._label;
}
set label(val: string) {
this._label = val;
if (this.initialized) {
this.domHandler.findSingle(this.el.nativeElement, '.ui-button-text')
.textContent = this._label;
}
}
@Input()
get loadinglabel(): string {
return this._loadinglabel;
}
set loadinglabel(val: string) {
this._loadinglabel = val;
}
@Input()
get icon(): string {
return this._icon;
}
set icon(val: string) {
this._icon = val;
if (this.initialized) {
let iconPosClass = (this.iconPos === 'right') ? 'ui-button-icon-right' :
'ui-button-icon-left';
this.domHandler.findSingle(this.el.nativeElement, '.iconfont').className =
iconPosClass + ' ui-c iconfont plx-icon-' + this.icon;
}
}
@Input()
get state(): number {
return this._state;
}
set state(val: number) {
this._state = val;
if (this.initialized) {
let spanElement =
this.domHandler.findSingle(this.el.nativeElement, '.ui-button-text');
if (this.state === PlxButtonState.DOING) {
if (spanElement) {
spanElement.innerText = this.loadinglabel || 'loading';
}
this.el.nativeElement.disabled = true;
this.setIconELement(true);
} else {
spanElement.innerText = this.label || '';
this.el.nativeElement.disabled = false;
this.setIconELement(false);
}
}
}
ngOnDestroy() {
while (this.el.nativeElement.hasChildNodes()) {
this.el.nativeElement.removeChild(this.el.nativeElement.lastChild);
}
this.initialized = false;
}
}
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