WindowManager.js

const url = require('url');
const uuidv4 = require('uuid/v4');
var bus
/**
 * @typedef WindowProperties
 * @type {Object}
 */
/**
 * @typedef WindowData
 * @type {Object}
 */

/**
 * @class WindowManager
 * @classdesc Window Manager to manage all HeadlessCore Windows.
 */
class WindowManager {
	/**
	 * @param {Object} BrowserWindow Electron Browser Window Object
	 */
	constructor(BrowserWindow) {
		this.BrowserWindow = BrowserWindow
		/**
		 * All Open Windows
		 * @returns Object
		 */
		this.Windows = {}
	}

	/**
	 * Create a new Electron Window
	 * @param {String} [ID] Unique ID to use
	 * @param {WindowProperties} prop 
	 * @param {WindowData} data 
	 * @param {Object} [menu=null]
	 * @example WindowManager.createWindow('addWindow', {
	    parent: 'MainWindow',
	    show: false,
	    darkTheme: true,
	    width: 800,
	    height: 800,
	    title: "New Server",
	    icon: ICON_GLOBAL_PNG,
	    webPreferences: {
	        nodeIntegration: true
	    }
	}, {page:{
	    pathname: path.join(__dirname, '/Pages/addWindow.html'),
	    protocol: 'file:',
	    slashes: true,
	},children:['ConfigWindow']})
	 * @returns {String} Unique Window ID
	 */
	createWindow(ID = uuidv4(), prop, data,show = true, menu = null) {
		console.log('New Window Call,', ID)
		if (this.Windows[ID] != undefined) {
			return false
		}
		prop.show = false
		if (prop.parent) {
			if (this.Windows[prop.parent]) {
				//Exclude Top Level
				if (ID !== 'MainWindow') {
					if (!this.Windows[prop.parent].Children.includes(ID)) {
						this.Windows[prop.parent].Children.push(ID)
					}
				}
				prop.parent = this.Windows[prop.parent]
			} else {
				prop.parent = this.Windows['MainWindow']
			}
		} else {
			prop.parent = this.Windows['MainWindow']
		}
		//console.log(prop)

		this.Windows[ID] = new this.BrowserWindow(prop);
		this.Windows[ID].setMenu(menu)
		this.Windows[ID].Children = (data.children ? data.children : []);
		//console.log('menu',menu)
		let windowURL = url.format(data.page)
		console.log('query', data.query)
		if (data.query) {
			let t_query = ""
			for (const [key, value] of Object.entries(data.query)) {
				t_query += `${key}=${encodeURIComponent(value)}&`
			}
			windowURL += `?${t_query}`

		}
		console.log('windowURL', windowURL)
		this.Windows[ID].loadURL(windowURL)
		this.Windows[ID].once('ready-to-show', () => {
			if (show) {
			setTimeout(() => {  this.Windows[ID].show(); }, 10);
			}
		})
		// GC Handle
		this.Windows[ID].onClose = (this.Windows[ID].on('close', () => {
			console.log(`Manual Close on ${ID}`)
			if (ID != 'MainWindow') {
				for (let i = 0; i < this.Windows[ID].Children.length; i++) {
					this.closeWindow(this.Windows[ID].Children[i])
				}
				delete this.Windows[ID]
			}
		}))
		this.Windows[ID].onClosed = (this.Windows[ID].on('closed', () => {
			console.log(`Window ${ID}: Closed.`)
		}))
		//console.log(this.Windows)
		return ID
	}
	/**
	 * 
	 * @param {String} ID 
	 * @param {String} tag 
	 * @param {*} data 
	 * @example WindowManager.sendData('MainWindow','NEOS:Login', {'neosCredential':someLogin,'neosPassword':somepassword})
	 */
	sendData(ID, tag, data) {
		if (!this.Windows[ID]) {
			return false
		}
		//console.log(`sendData(${ID},${tag},${data})`)
		this.Windows[ID].webContents.send(tag, data)
	}
	/**
	 * Check if a window ID exists
	 * @param {String} ID Unique Window ID
	 * @example if(WindowManager.isOpen('ConfigWindow')){
	 *  //Some code
	 * }
	 * @returns {Boolean} Is Window Open
	 */
	isOpen(ID) {
		return !(!this.Windows[ID])
	}
	/**
	 * Close a Window if it exists
	 * @param {String} ID Unique Window ID
	 */
	closeWindow(ID) {
		if (!this.Windows[ID]) {
			return false
		}
		this.Windows[ID].close()
	}
	/**
	 * Close all Windows
	 */
	closeAllWindows() {

	}
}

/**
 * @private
 */
module.exports = function (b) {
	bus = b;
	return {
		WindowManager
	}
}