i am using the Angular Compiler to compile components in runtime. This Code works fine, but if I want to use AOT-Prerendering the Component wont work, because Angular does not load the Compiler in AOT-Build.
I've read about some Workarounds that wont Work in Angular5+ anymore.
Do you have any solutions for this problem?
Best Regards
export class RuntimeCompilerComponent {
template: string = "";
#ViewChild('dynamicComponent', { read: ViewContainerRef }) container: ViewContainerRef;
constructor(private compiler: Compiler) { }
//Ruft die addComponent Methode auf
createComponent() {
this.addComponent(this.template, null);
}
// Komponente wird dynamisch erzeugt und geladen
// Sollten sich die properties ändern muss ggf. die Changedetection manuell aufgerufen werden.
private addComponent(template: string, properties: any = {}) {
#Component({ template })
class TemplateComponent { }
#NgModule({
imports: [
AppModule,
CommonModule,
ReactiveFormsModule,
FormsModule,
BrowserModule,
], declarations: [TemplateComponent]
})
class TemplateModule { }
const mod = this.compiler.compileModuleAndAllComponentsSync(TemplateModule);
const factory = mod.componentFactories.find((comp) =>
comp.componentType === TemplateComponent
);
const component = this.container.createComponent(factory);
Object.assign(component.instance, properties);
}
}
You can make this work with a few tricks. I ran into the same problem last year, and was able to find a fix. I was using dynamically generated angular components in my style-guide. Here's a working example, which works with AOT compilation in Angular 7:
https://github.com/johncrim/angular-dynamic-styleguide
The README.md for that project provides some additional info on the problems I came up against and how I figured out the fixes.
Related
We've run into some problems for our MultiSite Spartacus setup when doing I18n.
We'd like to have different translations for each site, so we put these on an API that can give back the messages dependent on the baseSite, eg: backend.org/baseSiteX/messages?group=common
But the Spartacus setup doesn't let us pass the baseSite? We can
pass {{lng}} and {{ns}}, but no baseSite.
See https://sap.github.io/spartacus-docs/i18n/#lazy-loading
We'd could do it by overriding i18nextInit, but I'm unsure how to achieve this.
In the documentation, it says you can use crossOrigin: true in the config, but that does not seem to work. The type-checking say it's unsupported, and it still shows uw CORS-issues
Does someone have ideas for these problems?
Currently only language {{lng}} and chunk name {{ns}} are supported as dynamic params in the i18n.backend.loadPath config.
To achieve your goal, you can implement a custom Spartacus CONFIG_INITIALIZER to will populate your i18n.backend.loadPath config based on the value from the BaseSiteService.getActive():
#Injectable({ providedIn: 'root' })
export class I18nBackendPathConfigInitializer implements ConfigInitializer {
readonly scopes = ['i18n.backend.loadPath']; // declare config key that you will resolve
readonly configFactory = () => this.resolveConfig().toPromise();
constructor(protected baseSiteService: BaseSiteService) {}
protected resolveConfig(): Observable<I18nConfig> {
return this.baseSiteService.getActive().pipe(
take(1),
map((baseSite) => ({
i18n: {
backend: {
// initialize your i18n backend path using the basesite value:
loadPath: `https://backend.org/${baseSite}/messages?lang={{lng}}&group={{ns}}`,
},
},
}))
);
}
}
and provide it in your module (i.e. in app.module):
#NgModule({
providers: [
{
provide: CONFIG_INITIALIZER,
useExisting: I18nBackendPathConfigInitializer,
multi: true,
},
],
/* ... */
})
Note: the above solution assumes the active basesite is set only once, on app start (which is the case in Spartacus by default).
I'm beginning with Svelte and I would like to (more or less) reproduce Mapbox store locator tutorial with Svelte & rollup. (Starting from svelte REPL starter kit).
Everything's fine for loading a map and some markers, but as soon as I try to import this package https://github.com/mapbox/mapbox-gl-geocoder, nothing works anymore and I'm not familiar enough with Svelte to figure out how to setup rollup and fix it.
<script>
import { onMount, setContext } from 'svelte'
import mapbox from 'mapbox-gl/dist/mapbox-gl.js';
import MapboxGeocoder from '#mapbox/mapbox-gl-geocoder'; // <<--- Problem here
mapbox.accessToken = 'xxx';
let map;
let geocoder;
onMount(() => {
map = new mapbox.Map({,,,});
geocoder = new MapboxGeocoder({,,,});
});
</script>
terminal :
bundles src/main.js → public/build/bundle.js...
(!) Missing shims for Node.js built-ins
Creating a browser bundle that depends on 'events'. You might need to include https://github.com/ionic-team/rollup-plugin-node-polyfills
(!) Unresolved dependencies
https://rollupjs.org/guide/en/#warning-treating-module-as-external-dependency
events (imported by node_modules/#mapbox/mapbox-gl-geocoder/lib/index.js, events?commonjs-external)
(!) Missing global variable name
Use output.globals to specify browser global variable names corresponding to external modules
events (guessing 'events$1')
created public/build/bundle.js in 2s
browser console :
Uncaught ReferenceError: events$1 is not defined
at main.js:5
Then, I tried to add to my rollup config resolve and polyfills plugins, but have other errors.
rollup.config.js
import svelte from 'rollup-plugin-svelte';
import resolve from '#rollup/plugin-node-resolve';
import commonjs from '#rollup/plugin-commonjs';
import livereload from 'rollup-plugin-livereload';
import { terser } from 'rollup-plugin-terser';
import preprocess from 'svelte-preprocess';
import nodeResolve from '#rollup/plugin-node-resolve';
import nodePolyfills from 'rollup-plugin-node-polyfills';
const production = !process.env.ROLLUP_WATCH;
export default {
input: 'src/main.js',
output: {
sourcemap: true,
format: 'iife',
name: 'app',
file: 'public/build/bundle.js'
},
plugins: [
nodeResolve(),
nodePolyfills(),
svelte({
// enable run-time checks when not in production
dev: !production,
// we'll extract any component CSS out into
// a separate file - better for performance
css: css => {
css.write('bundle.css');
},
preprocess: preprocess()
}),
// If you have external dependencies installed from
// npm, you'll most likely need these plugins. In
// some cases you'll need additional configuration -
// consult the documentation for details:
// https://github.com/rollup/plugins/tree/master/packages/commonjs
resolve({
browser: true,
dedupe: ['svelte']
}),
commonjs(),
// In dev mode, call `npm run start` once
// the bundle has been generated
!production && serve(),
// Watch the `public` directory and refresh the
// browser on changes when not in production
!production && livereload('public'),
// If we're building for production (npm run build
// instead of npm run dev), minify
production && terser()
],
watch: {
clearScreen: false
}
};
function serve() {
let started = false;
return {
writeBundle() {
if (!started) {
started = true;
require('child_process').spawn('npm', ['run', 'start', '--', '--dev'], {
stdio: ['ignore', 'inherit', 'inherit'],
shell: true
});
}
}
};
}
Gives me this
bundles src/main.js → public/build/bundle.js...
LiveReload enabled
(!) `this` has been rewritten to `undefined`
https://rollupjs.org/guide/en/#error-this-is-undefined
node_modules/base-64/base64.js
163: }
164:
165: }(this));
^
to conclude: I'm a bit lost :D
thanks in advance
Following the apple documentation and Branch's documentation here, I have set up a working universal link in my Nativescript Angular (iOS) app. But, how do I parse the link when the app opens?
For example, when someone opens the app from the link, I want to have my app read the link so it can go to the correct page of the app.
There is some helpful code in this answer, but I keep getting errors with it. This could be bc the code is written in vanilla JS and I am not translating it into Angular correctly. The use of "_extends" and "routeUrL" both cause errors for me.
And the Nativescript url-handler plugin does not seem to work without further code.
So, after setting up the universal link, and installing the nativescript url-handler plugin, I have entered the following in app.module.ts:
const Application = require("tns-core-modules/application");
import { handleOpenURL, AppURL } from 'nativescript-urlhandler';
declare var NSUserActivityTypeBrowsingWeb
if (Application.ios) {
const MyDelegate = (function (_super) {
_extends(MyDelegate, _super);
function MyDelegate() {
_super.apply(this, arguments);
}
MyDelegate.prototype.applicationContinueUserActivityRestorationHandler = function (application, userActivity) {
if (userActivity.activityType === NSUserActivityTypeBrowsingWeb) {
this.routeUrl(userActivity.webpageURL);
}
return true;
};
MyDelegate.ObjCProtocols = [UIApplicationDelegate];
return MyDelegate;
})(UIResponder);
Application.ios.delegate = MyDelegate;
}
...
export class AppModule {
ngOnInit(){
handleOpenURL((appURL: AppURL) => {
console.log('Got the following appURL = ' + appURL);
});
}
}
The trouble seems to be mostly with "_extends" and "_super.apply". For example, I get this error:
'NativeScript encountered a fatal error: TypeError: undefined is not an object (evaluating '_extends')
EDIT: Note that the nativescript-urlhandler plugin is no longer being updated. Does anyone know how to parse universal links with Nativescript?
I have figured out a method to get this working:
The general idea is to use the iOS App Delegate method: applicationContinueUserActivityRestorationHandler.
The syntax in the Nativescript documentation on app delegates did not work for me. You can view that documentation here.
This appears to work:
--once you have a universal link set up, following documentation like here, and now you want your app to read ("handle") the details of the link that was tapped to open the app:
EDIT: This code sample puts everything in one spot in app.module.ts. However, most of the time its better to move things out of app.module and into separate services. There is sample code for doing that in the discussion here. So the below has working code, but keep in mind it is better to put this code in a separate service.
app.module.ts
declare var UIResponder, UIApplicationDelegate
if (app.ios) {
app.ios.delegate = UIResponder.extend({
applicationContinueUserActivityRestorationHandler: function(application, userActivity) {
if (userActivity.activityType === NSUserActivityTypeBrowsingWeb) {
let tappedUniversalLink = userActivity.webpageURL
console.log('the universal link url was = ' + tappedUniversalLink)
}
return true;
}
},
{
name: "CustomAppDelegate",
protocols: [UIApplicationDelegate]
});
}
NOTE: to get the NSUserActivity/Application Delegate stuff to work with typescript, I also needed to download the tns-platforms-declarations plugin, and configure the app. So:
$ npm i tns-platforms-declarations
and
references.d.ts
/// <reference path="./node_modules/tns-platform-declarations/ios.d.ts" />
The above code works for me to be able to read the details of the tapped universal link when the link opens the app.
From there, you can determine what you want to do with that information. For example, if you want to navigate to a specific page of your app depending on the details of the universal link, then I have found this to work:
app.module.ts
import { ios, resumeEvent, on as applicationOn, run as applicationRun, ApplicationEventData } from "tns-core-modules/application";
import { Router } from "#angular/router";
let univeralLinkUrl = ''
let hasLinkBeenTapped = false
if (app.ios) {
//code from above, to get value of the universal link
applicationContinueUserActivityRestorationHandler: function(application, userActivity) {
if (userActivity.activityType === NSUserActivityTypeBrowsingWeb) {
hasLinkBeenTapped = true
universalLinkUrl = userActivity.webpageURL
}
return true;
},
{
name: "CustomAppDelegate",
protocols: [UIApplicationDelegate]
});
}
#ngModule({...})
export class AppModule {
constructor(private router: Router) {
applicationOn(resumeEvent, (args) => {
if (hasLinkBeenTapped === true){
hasLinkBeenTapped = false //set back to false bc if you don't app will save setting of true, and always assume from here out that the universal link has been tapped whenever the app opens
let pageToOpen = //parse universalLinkUrl to get the details of the page you want to go to
this.router.navigate(["pageToOpen"])
} else {
universalLinkUrl = '' //set back to blank
console.log('app is resuming, but universal Link has not been tapped')
}
})
}
}
You can use the nativescript-plugin-universal-links plugin to do just that.
It has support for dealing with an existing app delegate so if you do have another plugin that implements an app delegate, both of them will work.
Here's the usage example from the docs:
import { Component, OnInit } from "#angular/core";
import { registerUniversalLinkCallback } from "nativescript-plugin-universal-links";
#Component({
selector: "my-app",
template: "<page-router-outlet></page-router-outlet>"
})
export class AppComponent {
constructor() {}
ngOnInit() {
registerUniversalLinkCallback(ul => {
// use the router to navigate to the screen
});
}
}
And the callback will receive a ul (universal link) param that looks like this
{
"href": "https://www.example.com/blog?title=welcome",
"origin": "https://www.example.com",
"pathname": "/blog",
"query": {
"title": "welcome"
}
}
Disclaimer: I'm the author of the plugin.
I have a NativeScript application that I'm trying to add iBeacon support to using the iBeacon plugin. The application builds successfully and is synced to my phone (I'm using SideKick). When the app runs, it has a fatal javascript exception. The javascript error is reported at:
file:///app/tns_modules/tns-core-modules/ui/builder/builder.js:244:56: JS ERROR Error: Building UI from XML. #file:///app/app-root.xml:18:9
That line is where the page that attempts to access the iBeacon code is defined:
<Frame defaultPage="views/search/search-page"></Frame>
and the specific error is:
Importing binding name 'BeaconLocationOptions' is not found.
I'm assuming this occurs as part of the following import statement:
import {NativescriptIbeacon, BeaconCallback, BeaconLocationOptions, BeaconLocationOptionsIOSAuthType, BeaconLocationOptionsAndroidAuthType, BeaconRegion, Beacon } from 'nativescript-ibeacon';
The above import statement is what is documented as part of the iBeacon documentation.
There is a nativescript-ibeacon directory under node_modules in my project. The specific ios file seems to be there:
/Users/edscott/NativeScript/beacon-test/node_modules/nativescript-ibeacon/nativescript-ibeacon.ios.js
I'm not sure if it is a problem in my code or a problem with configuration - maybe something missing that stops the ibeacon files from being deployed properly to the device.
My code is in javascript, but I have installed the typescript plugin. It looks like this iBeacon plugin assumes the app is written in typescript.
I'm looking for help in determining what to try next.
FYI...I've tried pulling the source files out of the node_modules and incorporating them directly into my project. After resolving many issues with this approach, I eventually hit the same wall - a problem importing the code when running on the device.
Below is the code that is using the iBeacon plugin:
const observableModule = require("tns-core-modules/data/observable");
import {NativescriptIbeacon, BeaconCallback, BeaconLocationOptions, BeaconLocationOptionsIOSAuthType, BeaconLocationOptionsAndroidAuthType, BeaconRegion, Beacon } from 'nativescript-ibeacon';
function SearchViewModel() {
let callback = {
onBeaconManagerReady() {
// start ranging and/or monitoring only when the beacon manager is ready
this.nativescriptIbeacon.startRanging(this.region);
this.nativescriptIbeacon.startMonitoring(this.region);
},
didRangeBeaconsInRegion: function(region, beacons) {
console.log("didRangeBeaconsInRegion");
},
didFailRangingBeaconsInRegion: function(region, errorCode, errorDescription) {
console.log("didFailRangingBeaconsInRegion");
}
};
let options = {
iOSAuthorisationType: BeaconLocationOptionsIOSAuthType.Always,
androidAuthorisationType: BeaconLocationOptionsAndroidAuthType.Coarse,
androidAuthorisationDescription: "Location permission needed"
};
let nativescriptIbeacon = new NativescriptIbeacon(callback, options);
let region = new BeaconRegion("HelloID", "2f234454-cf6d-4a0f-adf2-f4911ba9ffa6");
const viewModel = observableModule.fromObject({
"beaconData": "not set yet",
"onTapStart": function() {
this.set("beaconData", "started");
console.log("tapped start");
if (!nativescriptIbeacon.isAuthorised()) {
console.log("NOT Authorised");
nativescriptIbeacon.requestAuthorization()
.then(() => {
console.log("Authorised by the user");
nativescriptIbeacon.bind();
}, (e) => {
console.log("Authorisation denied by the user");
})
} else {
console.log("Already authorised");
nativescriptIbeacon.bind();
}
},
"onTapStop": function() {
this.set("beaconData", "stopped");
console.log("tapped stop");
nativescriptIbeacon.stopRanging(region);
nativescriptIbeacon.stopMonitoring(region);
nativescriptIbeacon.unbind();
}
});
return viewModel;
}
module.exports = SearchViewModel;
I have created a playground for you here.
If you look into example, I am importing NativescriptIbeacon from the main folder and rest from the common folder.
P.S. This plugin has dependency on nativescript-permission
import { NativescriptIbeacon } from '../nativescript-ibeacon';
import {
BeaconRegion, Beacon, BeaconCallback,
BeaconLocationOptions, BeaconLocationOptionsIOSAuthType, BeaconLocationOptionsAndroidAuthType
} from "../nativescript-ibeacon/nativescript-ibeacon.common";
This answer solved my problem along with another modification. After splitting the import up I still had the same error. Then I read the following page about modules:
https://docs.nativescript.org/core-concepts/android-runtime/getting-started/modules
Based on this statement:
If the module identifier passed to require(moduleName) does not begin
with '/', '../', or './', then NativeScript will lookup the module
within the tns_modules folder
I assumed that maybe only require does the proper lookup into tns_modules.
I refactored the import to use require instead, and that worked. My changes are below. There may be a more efficient way to do this, but it worked for me.
const nsb = require("nativescript-ibeacon/nativescript-ibeacon.js");
const nsbc = require("nativescript-ibeacon/nativescript-ibeacon.common.js");
const NativescriptIbeacon = nsb.NativescriptIbeacon;
const BeaconCallback = nsbc.BeaconCallback;
const BeaconLocationOptions = nsbc.BeaconLocationOptions;
const BeaconLocationOptionsIOSAuthType = nsbc.BeaconLocationOptionsIOSAuthType;
const BeaconLocationOptionsAndroidAuthType = nsbc.BeaconLocationOptionsAndroidAuthType
const BeaconRegion = nsbc.BeaconRegion;
const Beacon = nsbc.Beacon;
I have added angular2-dropdown-multiselect in Jhipster angular part. Its not working perfectly as per the angular2-dropdwon-multi select or ngx-treeview I have added the dependency using
npm install angular2-multiselect-dropdown --save
Then I have added the same into app.module.ts
import { AngularMultiSelectModule } from 'angular2-multiselect-dropdown/angular2-multiselect-dropdown';
#NgModule({
// ...
imports: [
AngularMultiSelectModule,
]
// ...
})
Then Try this following example
import { Component, OnInit } from '#angular/core';
export class AppComponent implements OnInit {
dropdownList = [];
selectedItems = [];
dropdownSettings = {};
ngOnInit(){
this.dropdownList = [
{"id":1,"itemName":"India"},
{"id":2,"itemName":"Singapore"},
{"id":3,"itemName":"Australia"},
{"id":4,"itemName":"Canada"},
{"id":5,"itemName":"South Korea"},
{"id":6,"itemName":"Germany"},
{"id":7,"itemName":"France"},
{"id":8,"itemName":"Russia"},
{"id":9,"itemName":"Italy"},
{"id":10,"itemName":"Sweden"}
];
this.selectedItems = [
{"id":2,"itemName":"Singapore"},
{"id":3,"itemName":"Australia"},
{"id":4,"itemName":"Canada"},
{"id":5,"itemName":"South Korea"}
];
this.dropdownSettings = {
singleSelection: false,
text:"Select Countries",
selectAllText:'Select All',
unSelectAllText:'UnSelect All',
enableSearchFilter: true,
classes:"myclass custom-class"
};
}
onItemSelect(item:any){
console.log(item);
console.log(this.selectedItems);
}
OnItemDeSelect(item:any){
console.log(item);
console.log(this.selectedItems);
}
onSelectAll(items: any){
console.log(items);
}
onDeSelectAll(items: any){
console.log(items);
}
}
with HTML
<angular2-multiselect [data]="dropdownList" [(ngModel)]="selectedItems"
[settings]="dropdownSettings"
(onSelect)="onItemSelect($event)"
(onDeSelect)="OnItemDeSelect($event)"
(onSelectAll)="onSelectAll($event)"
(onDeSelectAll)="onDeSelectAll($event)">
</angular2-multiselect>
But after runing yarn serve
it just showing
Please help me
I had a similar problem with another third party library (ngx-treeview) and I also was only getting the html component empty and with no errors in the javascript console.
It was solved after importing the third party library properly following the JHipster project structure. If you want to use an external module in more than one module component, which is common, you need to configure it in shared-libs.module.ts and also add it to imports and to the exports on its #NgModule configuration.
src\main\webapp\app\shared\shared-libs.module.ts
import { NgModule } from '#angular/core';
import { FormsModule } from '#angular/forms';
import { CommonModule } from '#angular/common';
import { NgbModule } from '#ng-bootstrap/ng-bootstrap';
import { NgJhipsterModule } from 'ng-jhipster';
import { InfiniteScrollModule } from 'ngx-infinite-scroll';
import { CookieModule } from 'ngx-cookie';
import { FontAwesomeModule } from '#fortawesome/angular-fontawesome';
import { TreeviewModule } from 'ngx-treeview';
#NgModule({
imports: [
NgbModule.forRoot(),
NgJhipsterModule.forRoot({
alertAsToast: false,
i18nEnabled: true,
defaultI18nLang: 'en'
}),
InfiniteScrollModule,
CookieModule.forRoot(),
FontAwesomeModule,
TreeviewModule.forRoot() // new third party lib import
],
exports: [FormsModule, CommonModule, NgbModule, NgJhipsterModule,
InfiniteScrollModule, FontAwesomeModule,
TreeviewModule] // new third party lib export
})
export class MyProjectSharedLibsModule {}
Share-libs module is generated by Jhipster and it is by default imported in shared.module which is imported by app.module and also the other modules that are created at start by Jhipster. For more about project structure: https://www.jhipster.tech/using-angular/
However, if you create a new angular module component you need to add the shared module in the imports to be able to use the third parties libraries there.
#NgModule({
...
imports: [MyProjectSharedModule,
RouterModule.forChild([HOME_ROUTE])],
..
})
export class MyProjectAnotherModule {}