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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,88 +1,78 @@ | ||
| import {customAttribute} from 'aurelia-templating'; | ||
| import {bindingMode} from 'aurelia-binding'; | ||
| import {inject} from 'aurelia-dependency-injection'; | ||
| import {TaskQueue} from 'aurelia-task-queue'; | ||
| import {DOM} from 'aurelia-pal'; | ||
|
|
||
| /** | ||
| * CustomAttribute that binds provided DOM element's focus attribute with a property on the viewmodel. | ||
| */ | ||
| @customAttribute('focus', bindingMode.twoWay) | ||
| @inject(DOM.Element, TaskQueue) | ||
| export class Focus { | ||
| /** | ||
| * Creates an instance of Focus. | ||
| * @paramelement Target element on where attribute is placed on. | ||
| * @param taskQueue The TaskQueue instance. | ||
| */ | ||
| constructor(element, taskQueue) { | ||
| this.element = element; | ||
| this.taskQueue = taskQueue; | ||
| this.isAttached = false; | ||
| this.needsApply = false; | ||
| } | ||
|
|
||
| /** | ||
| * Invoked everytime the bound value changes. | ||
| * @param newValue The new value. | ||
| */ | ||
| valueChanged(newValue) { | ||
| if (this.isAttached) { | ||
| this._apply(); | ||
| } else { | ||
| this.needsApply = true; | ||
| } | ||
| } | ||
|
|
||
| _apply() { | ||
| if (this.value) { | ||
| this.taskQueue.queueMicroTask(() => { | ||
| if (this.value) { | ||
| this.element.focus(); | ||
| } | ||
| }); | ||
| } else { | ||
| this.element.blur(); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Invoked when the attribute is attached to the DOM. | ||
| */ | ||
| attached() { | ||
| this.isAttached = true; | ||
| if (this.needsApply) { | ||
| this.needsApply = false; | ||
| this._apply(); | ||
| } | ||
| this.element.addEventListener('focus', this); | ||
| this.element.addEventListener('blur', this); | ||
| } | ||
|
|
||
| /** | ||
| * Invoked when the attribute is detached from the DOM. | ||
| */ | ||
| detached() { | ||
| this.isAttached = false; | ||
| this.element.removeEventListener('focus', this); | ||
| this.element.removeEventListener('blur', this); | ||
| } | ||
|
|
||
| handleEvent(e) { | ||
| switch (e.type) { | ||
| case 'focus': this.handleFocus(e); break; | ||
| case 'blur': this.handleBlur(e); break; | ||
| default: break; | ||
| } | ||
| } | ||
|
|
||
| handleFocus(e) { | ||
| this.value = true; | ||
| } | ||
|
|
||
| handleBlur(e) { | ||
| if (DOM.activeElement !== this.element) { | ||
| this.value = false; | ||
| } | ||
| } | ||
| } | ||
| import {customAttribute} from 'aurelia-templating'; | ||
| import {bindingMode} from 'aurelia-binding'; | ||
| import {inject} from 'aurelia-dependency-injection'; | ||
| import {TaskQueue} from 'aurelia-task-queue'; | ||
| import {DOM} from 'aurelia-pal'; | ||
|
|
||
| /** | ||
| * CustomAttribute that binds provided DOM element's focus attribute with a property on the viewmodel. | ||
| */ | ||
| @customAttribute('focus', bindingMode.twoWay) | ||
| @inject(DOM.Element, TaskQueue) | ||
| export class Focus { | ||
| /** | ||
| * Creates an instance of Focus. | ||
| * @paramelement Target element on where attribute is placed on. | ||
| * @param taskQueue The TaskQueue instance. | ||
| */ | ||
| constructor(element, taskQueue) { | ||
| this.element = element; | ||
| this.taskQueue = taskQueue; | ||
| this.isAttached = false; | ||
| this.needsApply = false; | ||
| } | ||
|
|
||
| /** | ||
| * Invoked everytime the bound value changes. | ||
| * @param newValue The new value. | ||
| */ | ||
| valueChanged(newValue) { | ||
| if (this.isAttached) { | ||
| this._apply(); | ||
| } else { | ||
| this.needsApply = true; | ||
| } | ||
| } | ||
|
|
||
| _apply() { | ||
| if (this.value) { | ||
| this.taskQueue.queueMicroTask(() => { | ||
| if (this.value) { | ||
| this.element.focus(); | ||
| } | ||
| }); | ||
| } else { | ||
| this.element.blur(); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Invoked when the attribute is attached to the DOM. | ||
| */ | ||
| attached() { | ||
| this.isAttached = true; | ||
| if (this.needsApply) { | ||
| this.needsApply = false; | ||
| this._apply(); | ||
| } | ||
| this.element.addEventListener('focus', this); | ||
| this.element.addEventListener('blur', this); | ||
| } | ||
|
|
||
| /** | ||
| * Invoked when the attribute is detached from the DOM. | ||
| */ | ||
| detached() { | ||
| this.isAttached = false; | ||
| this.element.removeEventListener('focus', this); | ||
| this.element.removeEventListener('blur', this); | ||
| } | ||
|
|
||
| handleEvent(e) { | ||
| if (e.type === 'focus') { | ||
| this.value = true; | ||
| } else if (DOM.activeElement !== this.element) { | ||
| this.value = false; | ||
| } | ||
| } | ||
| } |