uicore-ts/scripts/UICore.ts

UICore is a library to build native-like user interfaces using pure Typescript. No HTML is needed at all. Components are described as TS classes and all user interactions are handled explicitly. This library is strongly inspired by the UIKit framework tha

import "./UICoreExtensions"
import { UILanguageService } from "./UIInterfaces"
import { nil, NO, UIObject } from "./UIObject"
import { UIRoute } from "./UIRoute"
import { UIView } from "./UIView"
import { UIViewController } from "./UIViewController"


export class UICore extends UIObject {
    
    rootViewController: UIViewController
    
    paddingLength = 20
    
    static RootViewControllerClass: typeof UIViewController
    static main: UICore
    
    static languageService: UILanguageService = nil
    
    static readonly broadcastEventName = {
        
        "RouteDidChange": "RouteDidChange",
        "WindowDidResize": "WindowDidResize"
        
    }
    
    constructor(rootDivElementID: string, rootViewControllerClass: typeof UIViewController) {
        
        super()
        
        UICore.RootViewControllerClass = rootViewControllerClass
        UICore.main = UICore.main || this
        
        const rootViewElement = document.getElementById(rootDivElementID)
        const rootView = new UIView(rootDivElementID, rootViewElement)
        rootView.pausesPointerEvents = NO //YES;
        rootView.core = this
        
        if (UICore.RootViewControllerClass) {
            
            if (!(UICore.RootViewControllerClass.prototype instanceof UIViewController) ||
                (UICore.RootViewControllerClass as any) === UIViewController) {
                
                console.log(
                    "Error, UICore.RootViewControllerClass must be UIViewController or a subclass of UIViewController, " +
                    "falling back to UIViewController."
                )
                
                UICore.RootViewControllerClass = UIViewController
                
            }
            
            this.rootViewController = new UICore.RootViewControllerClass(rootView)
            
        }
        else {
            
            this.rootViewController = new UIViewController(rootView)
            
        }
        
        this.rootViewController.viewWillAppear().then(() =>
            this.rootViewController.viewDidAppear()
        )
        
        
        this.rootViewController.view.addTargetForControlEvent(
            UIView.controlEvent.PointerUpInside,
            () => {
                
                (document.activeElement as HTMLElement)?.blur?.()
                
            }
        )
        
        
        const windowDidResize = () => {
            
            // Doing layout two times to prevent page scrollbars from confusing the layout
            this.rootViewController.view.setNeedsLayout()
            this.rootViewController._triggerLayoutViewSubviews()
            UIView.layoutViewsIfNeeded()
            
            this.rootViewController._triggerLayoutViewSubviews()
            //UIView.layoutViewsIfNeeded()
            
            this.rootViewController.view.broadcastEventInSubtree({
                
                name: UICore.broadcastEventName.WindowDidResize,
                parameters: nil
                
            })
            
        }
        
        window.addEventListener("resize", windowDidResize)
        
        const didScroll = () => {
            
            //code
            
            this.rootViewController.view.broadcastEventInSubtree({
                
                name: UIView.broadcastEventName.PageDidScroll,
                parameters: nil
                
            })
            
            
        }
        
        window.addEventListener("scroll", didScroll, false)
        
        const hashDidChange = () => {
            
            //code
            
            this.rootViewController.handleRouteRecursively(UIRoute.currentRoute)
            
            this.rootViewController.view.broadcastEventInSubtree({
                
                name: UICore.broadcastEventName.RouteDidChange,
                parameters: nil
                
            })
            
            
        }
        
        window.addEventListener("hashchange", hashDidChange, false)
        
        hashDidChange()
        
        
    }
    
    
}


Array.prototype.indexOf || (Array.prototype.indexOf = function (d, e) {
    let a
    if (null == this) {
        throw new TypeError("\"this\" is null or not defined")
    }
    const c = Object(this),
        b = c.length >>> 0
    if (0 === b) {
        return -1
    }
    // @ts-ignore
    a = +e || 0
    Infinity === Math.abs(a) && (a = 0)
    if (a >= b) {
        return -1
    }
    for (a = Math.max(0 <= a ? a : b - Math.abs(a), 0); a < b;) {
        if (a in c && c[a] === d) {
            return a
        }
        a++
    }
    return -1
})