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-rw-r--r--catalog-ui/src/app/ng2/components/loader/loader.component.html3
-rw-r--r--catalog-ui/src/app/ng2/components/loader/loader.component.less16
-rw-r--r--catalog-ui/src/app/ng2/components/loader/loader.component.ts66
3 files changed, 47 insertions, 38 deletions
diff --git a/catalog-ui/src/app/ng2/components/loader/loader.component.html b/catalog-ui/src/app/ng2/components/loader/loader.component.html
index 0e13cee674..a62aa114d9 100644
--- a/catalog-ui/src/app/ng2/components/loader/loader.component.html
+++ b/catalog-ui/src/app/ng2/components/loader/loader.component.html
@@ -1,4 +1,5 @@
-<div *ngIf="display" data-tests-id="tlv-loader">
+<div *ngIf="isVisible" data-tests-id="tlv-loader" [ngClass]="relative ? 'loader-relative' : 'loader-fixed'"
+ [style.top]="offset.top" [style.left]="offset.left" [style.width]="offset.width" [style.height]="offset.height">
<div class="tlv-loader-back" [ngClass]="{'tlv-loader-relative':relative}"></div>
<div class="tlv-loader {{size}}"></div>
</div>
diff --git a/catalog-ui/src/app/ng2/components/loader/loader.component.less b/catalog-ui/src/app/ng2/components/loader/loader.component.less
index 054b6021a1..ddb9915176 100644
--- a/catalog-ui/src/app/ng2/components/loader/loader.component.less
+++ b/catalog-ui/src/app/ng2/components/loader/loader.component.less
@@ -16,6 +16,22 @@
z-index: 10002;
}
+.loader-relative {
+ display: block;
+ position:absolute;
+ width: 100%;
+ height:100%;
+}
+
+.loader-fixed {
+ display: block;
+ position:fixed;
+ top:0;
+ left:0;
+ width: 100%;
+ height:100%;
+}
+
@keyframes fadein {
from { opacity: 0; }
to { opacity: 0.8; }
diff --git a/catalog-ui/src/app/ng2/components/loader/loader.component.ts b/catalog-ui/src/app/ng2/components/loader/loader.component.ts
index 92278d3ff5..f66aa551e2 100644
--- a/catalog-ui/src/app/ng2/components/loader/loader.component.ts
+++ b/catalog-ui/src/app/ng2/components/loader/loader.component.ts
@@ -21,7 +21,7 @@
/**
* Created by rc2122 on 6/6/2017.
*/
-import {Component, Input, ElementRef, Renderer, SimpleChanges} from "@angular/core";
+import { Component, Input, ViewContainerRef, SimpleChanges} from "@angular/core";
@Component({
selector: 'loader',
templateUrl: './loader.component.html',
@@ -29,13 +29,20 @@ import {Component, Input, ElementRef, Renderer, SimpleChanges} from "@angular/co
})
export class LoaderComponent {
- @Input() display:boolean;
- @Input() size:string;// small || medium || large
- @Input() relative: boolean;
- @Input() elementSelector: string; // optional. If is relative is set to true, option to pass in element that loader should be relative to. Otherwise, will be relative to parent element.
+ @Input() display: boolean;
+ @Input() size: string;// small || medium || large
+ @Input() relative: boolean; // If is relative is set to true, loader will appear over parent element. Otherwise, will be fixed over the entire page.
+ @Input() loaderDelay: number; //optional - number of ms to delay loader display.
+ private isVisible: boolean = false;
+ private offset : {
+ top: string;
+ left: string;
+ width: string;
+ height: string;
+ };
- constructor (private el: ElementRef, private renderer: Renderer){
+ constructor(private viewContainerRef: ViewContainerRef) {
}
ngOnInit() {
@@ -49,46 +56,31 @@ export class LoaderComponent {
ngOnChanges(changes: SimpleChanges) {
if(changes.display){
- if (this.display) {
- this.changeLoaderDisplay(false); //display is set to true, so loader will appear unless we explicitly tell it not to.
- window.setTimeout((): void => {
- this.display && this.changeLoaderDisplay(true); //only show loader if we still need to display it.
- }, 500);
- } else {
- window.setTimeout(():void => {
- this.changeLoaderDisplay(false);
- }, 0);
- }
+ this.changeLoaderDisplay(this.display);
}
}
- changeLoaderDisplay = (display: boolean): void => {
+ private changeLoaderDisplay = (display: boolean): void => {
if (display) {
- this.calculateLoaderPosition();
- this.renderer.setElementStyle(this.el.nativeElement, 'display', 'block');
+ window.setTimeout((): void => {
+ this.display && this.showLoader(); //only show loader if this.display has not changed in the meanwhile.
+ }, this.loaderDelay || 0);
} else {
- this.renderer.setElementStyle(this.el.nativeElement, 'display', 'none');
+ this.isVisible = false;
}
}
- calculateLoaderPosition = () => {
- if (this.relative === true) { // Can change the parent position to relative without causing style issues.
- let parent = (this.elementSelector) ? angular.element(this.elementSelector).get(0) : this.el.nativeElement.parentElement;
- this.renderer.setElementStyle(parent, 'position', 'relative');
- this.setLoaderPosition(0, 0); //will be relative to parent and appear over specified element
- //TODO: DONT force parent to have position relative; set inner div's style instead of outer element
- // let parentPos: ClientRect = this.el.nativeElement.parentElement.getBoundingClientRect();
- // this.setLoaderPosition(parentPos.top, parentPos.left, parentPos.width, parentPos.height);
- } else {
- this.setLoaderPosition(0, 0); //will appear over whole page
+ private showLoader = () => {
+ if (this.relative === true) {
+ let parentElement = this.viewContainerRef.element.nativeElement.parentElement;
+ this.offset = {
+ left: (parentElement.offsetLeft) ? parentElement.offsetLeft + "px" : undefined,
+ top: (parentElement.offsetTop) ? parentElement.offsetTop + "px" : undefined,
+ width: (parentElement.offsetWidth) ? parentElement.offsetWidth + "px" : undefined,
+ height: (parentElement.offsetHeight) ? parentElement.offsetHeight + "px" : undefined
+ };
}
+ this.isVisible = true;
}
- setLoaderPosition = (top:number, left:number, width?:number, height?:number): void => {
- this.renderer.setElementStyle(this.el.nativeElement, 'position', 'absolute');
- this.renderer.setElementStyle(this.el.nativeElement, 'top', top? top.toString() : "0");
- this.renderer.setElementStyle(this.el.nativeElement, 'left', left? left.toString() : "0");
- this.renderer.setElementStyle(this.el.nativeElement, 'width', width? width.toString() : "100%");
- this.renderer.setElementStyle(this.el.nativeElement, 'height', height? height.toString() : "100%");
- };
}