Can anyone help me here? im (totally) new at polymer. And im having trouble with rendering the content.
One page named "o-primeiro-demo.html" isnt rendering. I can only get the content present in the index.html file when i get it either through localhost:8080 or localhost/php.
This is the code:
index.html(what i added. the rest is the inicial settings)
<link rel="import" href="components/polymer/polymer.html">
<link rel="import" href="o-primeiro-demo.html">
<body>where is "o-primeiro-demo.html" data?</body>
o-primeiro-demo.html
<link rel="import" href="https://polygit.org/components/polymer/polymer.html">
<link rel="import" href="https://polygit.org/components/iron-icon/iron-icon.html">
<dom-module id="o-primeiro-demo">
<template>This is the first test</template>
<script>Polymer ({ is : "o-primeiro-demo" }); </script>
</dom-module>
bower.json
"name": "o-primeiro-demo",
If I understand correctly, you are trying to show o-primeiro-demo in your page.
For Polymer, to show a page you have to stamp it out onto the page with a tag.
If you want that to show up you need to write:
<body>
<o-premeiro-demo></o-premeiro-demo>
</body>
Until you do this, all content is inert. It doesn't exist and nothing knows about it.
Related
I am new to reactjs. First, I will summarize what happened to me. When I tried to move to another page using useNavigate() in react-router-dom, some click events not fired in that page. But when refresh that page, javascript works well. I want to make react website(just look like medium.com) using metronic static website template. So I added required css and js files in index.html file in public folder like below.
...
<link href="%PUBLIC_URL%/assets/plugins/global/plugins.bundle.css" rel="stylesheet" type="text/css" />
<link href="%PUBLIC_URL%/assets/css/style.bundle.css" rel="stylesheet" type="text/css" />
<title>React App</title>
</head>
<body>
<div id="root"></div>
</body>
<script src="%PUBLIC_URL%/assets/plugins/global/plugins.bundle.js"></script>
<script src="%PUBLIC_URL%/assets/js/scripts.bundle.js"></script>
<script src="%PUBLIC_URL%/assets/plugins/custom/fullcalendar/fullcalendar.bundle.js"></script>
<script src="%PUBLIC_URL%/assets/js/custom/widgets.js"></script>
<script src="%PUBLIC_URL%/assets/js/custom/apps/chat/chat.js"></script>
<script src="%PUBLIC_URL%/assets/js/custom/modals/create-app.js"></script>
<script src="%PUBLIC_URL%/assets/js/custom/modals/upgrade-plan.js"></script>
And I made a login and dashboard page. After successfully logged in, then page navigates to dashboard page. (I omitted unnecessary codes for simplicity.)
...
import { useNavigate } from "react-router-dom";
...
const Login =() => {
const navigate=UseNavigate();
useEffect(() => {
dispatch(login(credential))
.unwrap()
.then(()=>{
navigate("/dashboard")});
But in dashboard page, original javascript came from Metronic does not work. If I refresh page, then javascript works well. ( dropdown event when click button)
plugins.bundle.js and scripts.bundle.js are responsible for click event handling and they are already included in page.
Maybe my method for using Metronic template in react is incorrect. Please solve this problem. I tried all day long, but could not find solution. Thanks in advance.
Finally I solved this problem. For those who would confront this problem, I will explain the root cause and solution!
All Metronic bootstrap menu components are initialized automatically, but sometimes like me should initialize instances. In my problem, I could not fire dropdown menu event because when navigating to dashboard(re-rendering), not initialized automatically.
So, in useEffect hook, just initialize KTMenu like below.
KTMenu.createInstances();
For those similar cases, check this manual metronic documentation how to initialize instances, then add initialization code in useEffect hook.
I'm starting to learn reactjs at the moment. I'm wondering how to add normal HTML-Tags in a react-app. Is i just possible to add them by using the render function or can I also just write normal HTML-Tags in my index.html file?
Cause when I'm doing so they're not displayed.
Just like:
const myelement = (<h1>some element</h1>);
ReactDOM.render(myelement, document.getElementById('root'));
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<div>
<div id="root"></div>
<div>just normal html</div>
</div>
Well, it works just fine here.. so there must be something wrong with my build..
If you're starting out, I recommend you bootstrap your apps using npx create-react-app. It'll give you a good sense of what a React app could look like, and some pointers for file structure.
Most React apps have an index.html file, which you can use like any normal HTML file. But, for the majority of your app, it's recommended to write your content in JSX (otherwise, you aren't getting the benefits of using React in the first place).
JSX
JSX looks very similar to regular HTML, with a handful of key differences:
Tag attributes tend to be in lowerCamelCase (onChange rather than onchange)
Instead of class (which is a reserved keyword in JavaScript), you need to use className
An Example Component
I've borrowed this sample code from React's official tutorial, which you should definitely check out if you haven't already.
This is a class Component, and your JSX goes inside of the render method:
import React from 'react';
class ShoppingList extends React.Component {
render() {
return (
<div className="shopping-list">
<h1>Shopping List for {this.props.name}</h1>
<ul>
<li>Instagram</li>
<li>WhatsApp</li>
<li>Oculus</li>
</ul>
</div>
);
}
}
What goes in index.html?
The only essential part of index.html is a <div id="root"></div>, which React will use to append the rest of the JSX.
This is also the place to add the usual metadata and icons.
As an example, here's the index.html file that comes with create-react-app. For most of my projects, I leave this pretty-much as-is:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<link rel="apple-touch-icon" href="logo192.png" />
<!--
manifest.json provides metadata used when your web app is installed on a
user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
-->
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<!--
Notice the use of %PUBLIC_URL% in the tags above.
It will be replaced with the URL of the `public` folder during the build.
Only files inside the `public` folder can be referenced from the HTML.
Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
work correctly both with client-side routing and a non-root public URL.
Learn how to configure a non-root public URL by running `npm run build`.
-->
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
<!--
This HTML file is a template.
If you open it directly in the browser, you will see an empty page.
You can add webfonts, meta tags, or analytics to this file.
The build step will place the bundled scripts into the <body> tag.
To begin the development, run `npm start` or `yarn start`.
To create a production bundle, use `npm run build` or `yarn build`.
-->
</body>
</html>
In any given React component, there can only be one parent/top layer html element. You can get around this by using <React.Fragment> ...the rest of your html ... </React.Fragment> (or <>...</> depending on your version) or simply add a wrapping <div> around everything. JSX doesn't distinguish between "normal" html and "React" html, it just turns the React stuff into normal html (over simplification, but close enough for this question). Try it again and let me know if you encounter any problems.
const reactElement = (
<div>
React stuff
</div>
);
ReactDOM.render(
reactElement,
document.getElementById('root')
);
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<div>
<div id="root">
</div>
<div>
just normal html
</div>
</div>
i found this lightbox example on stackoverflow:
Why is the lightbox jQuery plugin not working for me?
i did ask a question there but it was deleted and i was told to use the "ask a question button" so here i am
this code does not run:
<html>
<head>
<!--
**** Things you need to do****
1. SPECIFY LIGHTBOX CSS FILE
2. SPECIFY JQUERY JS (jquery-1.7.2) FILE
3. SPECIFY LIGHTBOX JS FILE
-->
<link rel="stylesheet" href="http://lokeshdhakar.com/projects/lightbox2/css/lightbox.css" type="text/css" media="screen" />
<script src="http://lokeshdhakar.com/projects/lightbox2/js/jquery-1.7.2.min.js"></script>
<script src="http://lokeshdhakar.com/projects/lightbox2/js/lightbox.js"></script>
</head>
<body>
<div id="tabs">
<ul>
<li>Spring</li>
<li>Summer</li>
<li>Fall</li>
<li>Winter</li>
</ul>
<div id="tabs-1">
<a href="https://www.google.de/logos/doodles/2015/229th-anniversary-of-the-first-ascent-of-mont-blanc-5711572991213568.2-hp.jpg" rel="lightbox" >
<img src="https://www.google.de/logos/doodles/2015/229th-anniversary-of-the-first-ascent-of-mont-blanc-5711572991213568.2-hp.jpg" width="300" height="200">
</a>
</div>
</div>
</body>
</html>
all the "versions" are specified...how can it not work? i just get a small picture and if i click on it it behaves like a normal link.
If you copied this verbatim, the error is the fact that the jQuery script included in that sample no longer exist. You can notice this easily in your browser's developer console. So you have to find the required jQuery version from some other place.
I would recommend using some other scripts that are usable with more current jQuery version though, otherwise you'll be forced to use an ancient one.
Include your scripts before </body> tag. Then lightbox will be work correctly.
I have tried to implement the latest version of Lightbox as of 30 June 2015. I have loaded the js files (jquery.min.js and lightbox.js in that order). I also have added the css line to my head section as well. I have even tried loading lightbox.min.js
I have added the data-lightbox attribute to the image ink. When I click on the link to show the image, all that happens is I go to the image itself. It is like I opened the image from my local machine in a browser. No lightbox effect or features at all.
The page in question can be seen at http://www.kilajager.com/new/bs.php
The 5 images side by side at the top are my links to the full image.
Below are snippets of the code:
<head>
<title>Kila Jager Modeling Portfolio | Portfolio</title>
<link href="css/bootstrap.css" rel="stylesheet" type="text/css" media="all">
<link href="css/style.css" rel="stylesheet" type="text/css" media="all">
<link href="css/lightbox.css" rel="stylesheet" type="text/css" media="all">
<script type="application/x-javascript"> addEventListener("load", function() { setTimeout(hideURLbar, 0); }, false); function hideURLbar(){ window.scrollTo(0,1); } </script>
<link href='http://fonts.googleapis.com/css?family=Open+Sans:400,300,600,700,800' rel='stylesheet' type='text/css'>
<script src="js/jquery.min.js"></script>
<script src="js/lightbox.js"></script>
</head>
<a href="images/bs02.jpg" class="b-link-stripe b-animate-go thickbox play-icon" data-lightbox="bonnie" data-title="Image 02">
<img src="images/bsslid2.png" class="img-responsive" alt="" />
</a>
The simple instructions in Lightbox 2 website are currently inadequate (as of now, they have been updated to be adequate).
Lightbox 2 will not work with versions of jQuery below 1.7. And the placement of the <script> tag matters.
Use jQuery 1.7 or above.
If you don't already use jQuery in your page, simply use lightbox-plus-jquery.min.js instead as it includes jQuery 2.1.4.
If you already use it, upgrade to jQuery 1.7 or above and test out your existing jQuery-based code and plugins. Hopefully nothing else breaks =)
Put the Lightbox 2 <script> tag (for the JavaScript file) at the end of the page, just before the body closing tag (</body>).
The <link> tag for the CSS can remain in the <head> tag.
Why does adding AngularJS to a page break it? What can I do to allow it to function correctly? Controls stop rendering. Menus stop expanding.
I am trying to divide the index.html page of an existing Bootstrap theme into partials / templates. Unfortunately, as soon as I move the HTML out of the index.html the controls on that page break.
The theme I am using is KingAdmin v1.3 from WrapBootstrap.com: https://wrapboo...
The only markup I'm adding is...
ng-app="app"
<div ng-include="'shell.html'"></div>
<script src="assets/thirdparty/angular/1.2.26/angular.js"></script>
<script src="assets/app/app.js"></script>
The shell.html contains only the portion of the body that was in the index originally...
WITHOUT ANGULAR:
WITH ANGULAR:
INDEX.HTML:
<head>
<title>Dashboard | KingAdmin - Admin Dashboard</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="description" content="KingAdmin - Bootstrap Admin Dashboard Theme">
<meta name="author" content="The Develovers">
<!-- CSS -->
<link href="assets/css/bootstrap.min.css" rel="stylesheet" type="text/css" media="screen">
<link href="assets/css/font-awesome.min.css" rel="stylesheet" type="text/css" media="screen">
<link href="assets/css/main.css" rel="stylesheet" type="text/css" media="screen">
<!--[if lte IE 9]>
<link href="assets/css/main-ie.css" rel="stylesheet" type="text/css" media="screen" />
<link href="assets/css/main-ie-part2.css" rel="stylesheet" type="text/css" media="screen" />
<![endif]-->
<!-- Fav and touch icons -->
<link rel="apple-touch-icon-precomposed" sizes="144x144" href="assets/ico/kingadmin-favicon144x144.png">
<link rel="apple-touch-icon-precomposed" sizes="114x114" href="assets/ico/kingadmin-favicon114x114.png">
<link rel="apple-touch-icon-precomposed" sizes="72x72" href="assets/ico/kingadmin-favicon72x72.png">
<link rel="apple-touch-icon-precomposed" sizes="57x57" href="assets/ico/kingadmin-favicon57x57.png">
<link rel="shortcut icon" href="assets/ico/favicon.png">
</head>
<body class="dashboard">
<div ng-include="'shell.html'"></div>
<!-- Javascript -->
<script src="assets/js/jquery/jquery-2.1.0.min.js"></script>
<script src="assets/js/bootstrap/bootstrap.js"></script>
<script src="assets/js/plugins/modernizr/modernizr.js"></script>
<script src="assets/js/plugins/bootstrap-tour/bootstrap-tour.custom.js"></script>
<script src="assets/js/king-common.js"></script>
<script src="assets/js/plugins/stat/jquery.easypiechart.min.js"></script>
<script src="assets/js/plugins/raphael/raphael-2.1.0.min.js"></script>
<script src="assets/js/plugins/stat/flot/jquery.flot.min.js"></script>
<script src="assets/js/plugins/stat/flot/jquery.flot.resize.min.js"></script>
<script src="assets/js/plugins/stat/flot/jquery.flot.time.min.js"></script>
<script src="assets/js/plugins/stat/flot/jquery.flot.pie.min.js"></script>
<script src="assets/js/plugins/stat/flot/jquery.flot.tooltip.min.js"></script>
<script src="assets/js/plugins/jquery-sparkline/jquery.sparkline.min.js"></script>
<script src="assets/js/plugins/datatable/jquery.dataTables.min.js"></script>
<script src="assets/js/plugins/datatable/dataTables.bootstrap.js"></script>
<script src="assets/js/plugins/jquery-mapael/jquery.mapael.js"></script>
<script src="assets/js/plugins/raphael/maps/usa_states.js"></script>
<script src="assets/js/king-chart-stat.js"></script>
<script src="assets/js/king-table.js"></script>
<script src="assets/js/king-components.js"></script>
<script src="assets/thirdparty/angular/1.2.26/angular.js"></script>
<script src="assets/app/app.js"></script>
</body>
</html>
UPDATE 2014-11-25
I've confirmed this is not me. I had a friend attempt to convert a single page in the template to Angular partials using ng-include tags and setting it up behind a proper Node.JS server. He had the same results. As soon as Angular renders the first page, tons of functionality breaks. the expand/collapse logic everywhere stops working. Most of the controls stop rendering properly.
NOTE
Someone mentioned that the problem might be caused by the use of ng-include tags and partials WITHOUT the partial file having a contoller. The side bar, top bar, breadcrumb are all being included as static HTML / Jade files via an ng-include. A route is passing in the controller for the main body, however the problems exist within this area as well.
Here is a link to the template on the developer's site:
KingAdmin Dashboard Theme
And here is how it currently looks:
Quick look at the modifications from the index.html page:
PARTIALLY RESOLVED:
Not sure if this would be considered a hack. Someone with more knowledge of jQuery and Angular could / should chime in to tell you if this is safe.
STILL UNRESOLVED:
This seems to work while the page is being loaded for the first time. It does NOT work if you navigate away from the page and back again (using the back button, for example). I believe this is happening due to Angular injecting the body and NOT re-rendering the entire page... or the scripts. There's probably something that can be done within each template that uses jQuery (re-init somehow, etc.).
There seem to be tons of questions / examples discussing similar problems with the DOM, jQuery, and using timeouts to correct them:
AngularJS: How can I run a directive after the dom has finished rendering?
The entire fix is in with your common resource scripts, king-common.js, etc.. They each have several rendering functions that appear to be called up front, however the DOM is still being rendered.
Example:
$(document).ready(function(){
$('.main-menu .js-sub-menu-toggle').click( function(e){
[snip]
$li.find('.sub-menu').slideToggle(300);
});
By wrapping each of these operations in a setTimout you postpone rendering until after the DOM is modified:
$(document).ready(function(){
setTimeout(function(){
$('.main-menu .js-sub-menu-toggle').click( function(e){
[snip]
$li.find('.sub-menu').slideToggle(300);
},1000);
);
These have been moved to the tail end of your scripts.jade / scripts.html file. This was done initially as an attempt to delay the firing of these methods, so this might be unnecessary. Still, that's part of how we arrived at a functioning template.
Your problem is Bootstrap is not watching for the newly created elements on your page that angular compiles for you. You can create directives that can call the the Bootstrap jQuery method that add the Bootstrap bindings to your element, such as ($('.dropdown').dropdown()).
There is a wonderful AngularJS library that replaces that is an angular agnostic rewrite of bootstrap.js that may fix this for you: http://angular-ui.github.io/bootstrap/
For a quick hack, if you want all your elements with the .dropdown class to use Bootstrap dropdown, you would create a directive like this.
angular.module('app')
// Directives: https://docs.angularjs.org/guide/directive
.directive('dropdown', [
// Use window dependency
'$window',
// Returns a directive
function ($window) {
return {
// Restrict to attribute, or class name so can be used like so:
//
// <a class="dropdown btn btn-primary">Dropdown button</a>
// or
// <a dropdown class="btn btn-primary">Dropdown button</a>
restrict: 'AC',
link: {
post: [
// This dependency gives you the element with
// the directive wrapped as a jQuery object
'$element',
function ($element) {
$element.dropdown();
}
]
}
};
})
I think you should reconsider your dependencies. The elements broken in your UI seems to require jquery, for instance: jquery.easypiechart.min.js
At https://docs.angularjs.org/misc/faq you can read:
Does Angular use the jQuery library? Yes, Angular can use jQuery if
it's present in your app when the application is being bootstrapped.
If jQuery is not present in your script path, Angular falls back to
its own implementation of the subset of jQuery that we call jQLite.
Angular 1.3 only supports jQuery 2.1 or above. jQuery 1.7 and newer
might work correctly with Angular but we don't guarantee that.
Notice that angular requires jQuery 2.1 or above, whilst Bootstrap require the latest 1.1.x version of jQuery (Bootstrap does not support jQuery 2+ due to jQuery 2 does not support IE8).
After reading the above you should also read:
Does one need jQuery when using Twitter Bootstrap with Angular.js?
https://github.com/angular-ui/bootstrap/issues/2765