53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
import { Property, GridLayout } from '@nativescript/core/ui'
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class Common extends GridLayout {
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public rtl: boolean
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}
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const RTLProperty = new Property({
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name: 'rtl',
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defaultValue: false,
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valueConverter(v): boolean {
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return !!v
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},
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})
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RTLProperty.register(Common)
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export class RGridLayout extends Common {
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public initNativeView(): void {
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super.initNativeView()
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this._updateDirection()
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}
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[RTLProperty.setNative](rtl: boolean): void {
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this.rtl = rtl
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this._updateDirection()
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}
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public addChild(view): void {
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super.addChild(view)
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if (view.nativeViewProtected) {
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this._updateDirection()
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}
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}
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public removeChild(view): void {
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super.removeChild(view)
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if (view.nativeViewProtected) {
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this._updateDirection()
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}
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}
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private _updateDirection(): void {
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let v = this
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setTimeout(() => {
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let pr = /(^|\s)rtl($|\s)/.test(v.className)
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v.nativeViewProtected.setRotationY(v.rtl ? (pr ? 0 : 180) : 0)
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for (let i = 0; i < v.getChildrenCount(); i++) {
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let c = v.getChildAt(i).className
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let r = /(^|\s)rtl($|\s)/.test(c)
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let a = /(^|\s)a($|\s)/.test(c)
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if (!v.rtl) r = !r
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if (/(^|\s)a($|\s)/.test(c))
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v.getChildAt(i).horizontalAlignment = a ? 'left' : 'right'
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v.getChildAt(i).nativeView &&
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v.getChildAt(i).nativeView.setRotationY(v.rtl ? (r ? 0 : 180) : 0)
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}
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}, 1)
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}
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}
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