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Inserting dynamic html tags using Vue.js

I try to dynamic notify when I wrote some messages.
That's my vue.js code.
<script>
Vue.http.options.emulateJSON = true; // Send as
new Vue({
el: '#app',
data: {
name : "",
postResult : ""
},
methods: {
click: function() {
this.$http.post('/api/test', {name:this.name}).then(function(response){
var result = response.data;
//this.postResults.push(result.name);
if (result.name == "1234")
{
this.postResult = "<div> Success </div>";
}
else
{
this.postResult = "<div> Fail </div>";
}
}, function(response){
// Error Handling
});
}
}
});
</script>
When I use jQuery's Ajax, I used this method. But my vue.js script is not working. Should I study more about Vue JS? or I forget some syntax in this vue.js?

<template>
<div v-if='requestCompleted'>
<div v-if='!postResult'> Fail </div>
<div v-else-if='postResult'> Success </div>
</div>
</template>
<script>
Vue.http.options.emulateJSON = true; // Send as
new Vue({
el: '#app',
data: {
name : "",
postResult : null,
requestCompleted: false
},
methods: {
click: function() {
this.$http.post('/api/test', {name:this.name}).then((response)=>{
var result = response.data;
this.requestCompleted=true;
if (result.name == "1234")
{
this.postResult = true;
}
else
{
this.postResult = false;
}
}, function(response){
// Error Handling
});
}
}
});
</script>
Use arrow functions for getting access to 'this' inside your callback function.
For HTTP requests, it's better to use Axios. Also, you can use vuex store and manage your requests with actions

You don't have "this" inside your response callback. Do var me = this at the top level of your click function, then do me.postResult = ... in the callback.
In general terms, try and keep all your markup in the template element, no ?

Listen to custom event in Vue.js

Vue.js works great with browser events such as click or mousedown. But not work at all with custom events. Here is the code:
HTML:
<div id="app" style="display: none" v-show="true">
<div v-el:ping v-on:ping="ping">
<div>
<button v-on:click="click">Click</button>
</div>
</div>
</div>
JavaScript:
new Vue({
el: '#app',
data: {
},
methods: {
ping: function (event) {
console.log('Vue ping', event);
alert('Vue ping');
},
click: function (event) {
jQuery(event.target).trigger('ping');
}
},
ready: function () {
console.log(this.$els);
jQuery(this.$els.ping).on('ping', function (event) {
console.log('jQuery ping', event);
alert('jQuery ping');
});
}
});
I expect alert with Vue ping and jQuery ping. But only the later pops up.
CodePen

Vue has its own internal system for custom events, which you should use instead of jQuery / native DOM events:
click: function (event) {
// jQuery(event.target).trigger('ping');
this.$dispatch('ping', event.target) // send event up the parent chain, optionally send along a reference to the element.
// or:
this.$emit('ping') // trigger event on the current instance
}
Edit: $dispatch is for parent-child communication, You seem to want to trigger a custom event from within the same comonent. In that case, you could instead simply call a method.
If you still want to listen to a custom event inside the same component, you:
want to use $emit
cannot use v-on:custom-event-name in the template (that's only to be used on components). Rather, add the event method to the events::
events: {
ping: function() {....}
}

Here it is in vanilla JS:
HTML:
<div id="app">
<div v-el:ping>
<div>
<button v-on:click="click">Click</button>
</div>
</div>
</div>
JS:
(function() {
new Vue({
el: '#app',
data: {
event: null
},
methods: {
ping: function(event) {
alert('Vue ping');
},
click: function(event) {
this.$els.ping.dispatchEvent(this.event);
}
},
ready: function() {
this.event = document.createEvent("HTMLEvents");
this.event.initEvent("ping", true, true);
this.$els.ping.addEventListener('ping', this.ping);
}
});
})();
pen: http://codepen.io/anon/pen/wGdvaV?editors=1010#0

You should avoid to mix a dom events and vue-components related ones because it's a different layers of abstraction.
Anyway, if you still want to do that, I think you need to cache this.el inside a vue-component instance or take it via computed-property like this
{
computed : {
jqueryEl(){ return $(this.el) }
}
}
And then trigger a custom jQuery events by this.jqueryEl.trigger('ping').
Sure to properly take care of keep the element's bindings up to date!
For example you can bind jQuery events dynamically (and also unbind on component destroy!) like this:
ready : function(){
jQuery('body').on('ping.namespace', '[data-jquery="ping"]', function(){ ... })
},
destroy : function(){
jQuery('body').off('ping.namespace')
}
And don't forget to add attribute [data-jquery="ping"] to an element which you would like to response a ping event.
Hope this information helps you to achieve the expected result.

VueJS and tinyMCE, custom directives

I've been struggling hard with getting VueJS and TinyMCE to work together. I've come to the conclusion that using directives would be the way to go.
So far I've been able to pass in the body as a directive parameter, and tinyMCE sets the content. However, I can't get the two way binding to work. I'm also afraid that I'm doing things completely wrong based on the tinyMCE api.
The relevant tinyMCE functions I assume would be:
http://community.tinymce.com/wiki.php/api4:method.tinymce.Editor.setContent
// Sets the content of a specific editor (my_editor in this example)
tinymce.get('my_editor').setContent(data);
and
http://community.tinymce.com/wiki.php/api4:method.tinymce.Editor.getContent
// Get content of a specific editor:
tinymce.get('content id').getContent()
HTML
<div id="app">
<h3>This is the tinyMCE editor</h3>
<textarea id="editor" v-editor :body="body"></textarea>
<hr>
<p>This input field is properly binded</p>
<input v-model="body">
<hr>
<pre>data binding: {{ body }} </pre>
</div>
JS
tinymce.init({
selector:'#editor',
});
Vue.directive('editor', {
twoWay: true,
params: ['body'],
bind: function () {
tinyMCE.get('editor').setContent(this.params.body);
tinyMCE.get('editor').on('change', function(e) {
alert("changed");
});
},
update: function (value) {
$(this.el).val(value).trigger('change')
},
});
var editor = new Vue({
el: '#app',
data: {
body: 'The message'
}
})
Fiddle
https://jsfiddle.net/nf3ftm8f/

With Vue.js 2.0, the directives are only used for applying low-level direct DOM manipulations. They don't have this reference to Vue instance data anymore. (Ref: https://v2.vuejs.org/v2/guide/migration.html#Custom-Directives-simplified)
Hence I recommend to use Component instead.
TinymceComponent:
// Use JSPM to load dependencies: vue.js 2.1.4, tinymce: 4.5.0
import Vue from 'vue/dist/vue';
import tinymce from 'tinymce';
// Local component
var TinymceComponent = {
template: `<textarea class="form-control">{{ initValue }}</textarea>`,
props: [ 'initValue', 'disabled' ],
mounted: function() {
var vm = this,
tinymceDict = '/lib/jspm_packages/github/tinymce/tinymce-dist#4.5.1/';
// Init tinymce
tinymce.init({
selector: '#' + vm.$el.id,
menubar: false,
toolbar: 'bold italic underline | bullist numlist',
theme_url: tinymceDict + 'themes/modern/theme.js,
skin_url: tinymceDict + 'skins/lightgray',
setup: function(editor) {
// If the Vue model is disabled, we want to set the Tinymce readonly
editor.settings.readonly = vm.disabled;
if (!vm.disabled) {
editor.on('blur', function() {
var newContent = editor.getContent();
// Fire an event to let its parent know
vm.$emit('content-updated', newContent);
});
}
}
});
},
updated: function() {
// Since we're using Ajax to load data, hence we have to use this hook because when parent's data got loaded, it will fire this hook.
// Depends on your use case, you might not need this
var vm = this;
if (vm.initValue) {
var editor = tinymce.get(vm.$el.id);
editor.setContent(vm.initValue);
}
}
};
// Vue instance
new Vue({
......
components: {
'tinymce': TinymceComponent
}
......
});
Vue Instance (simplified)
new Vue({
el: '#some-id',
data: {
......
description: null
......
},
components: {
'tinymce': TinymceComponent
},
methods: {
......
updateDescription: function(newContent) {
this.description = newContent;
},
load: function() {
......
this.description = "Oh yeah";
......
}
......
},
mounted: function() {
this.load();
}
});
HTML (MVC view)
<form id="some-id">
......
<div class="form-group">
<tinymce :init-value="description"
v-on:content-updated="updateDescription"
:id="description-tinymce"
:disabled="false">
</tinymce>
</div>
......
</form>
The flows
First the data is loaded through remote resources, i.e., AJAX. The description got set.
The description got passed down to the component via props: initValue.
When the component is mounted, the tinymce is initialized with the initial description.
It also sets up the on blur event to get the updated content.
Whenever the user loses focus on the editor, a new content is captured and the component emits an event content-updated, letting the parent know that something has happened.
On Html you have v-on:content-updated. Since the parent is listening to the content-updated event, the parent method updateDescription will be called when the event is emited.
!!Couple Important Notes!!
By design, the component has 1 way binding, from parent to component. So when the description gets updated from Vue instance, the component's initValue property should be updated as well, automatically.
It would be nice if we can pass whatever the user types in tinymce editor back to the parent Vue instance but 2 ways bindings is not supposed. That's when you need to use $emit to fire up events and notify parents from components.
You don't have to define a function in parent and do v-on:content-updated="updateDescription". You can just directly update the data by doing v-on:content-updated="description = $event". The $event has the parameter you defined for the function inside the component - the newContent parameter.
Hope I explained things clearly. This whole thing took me 2 weeks to figure it out!!

Here's a Tinymce component for Vue.
http://jsbin.com/pucubol/edit?html,js,output
It's also good to know about v-model and custom input components:
https://v2.vuejs.org/v2/guide/components.html#Form-Input-Components-using-Custom-Events
Vue.component('tinymce', {
props: ['value'],
template: `<div><textarea rows="10" v-bind:value="value"></textarea></div>`,
methods: {
updateValue: function (value) {
console.log(value);
this.$emit('input', value.trim());
}
},
mounted: function(){
var component = this;
tinymce.init({
target: this.$el.children[0],
setup: function (editor) {
editor.on('Change', function (e) {
component.updateValue(editor.getContent());
})
}
});
}
});
<tinymce v-model="whatever"></tinymce>

Try this:
Vue.directive('editor', {
twoWay: true,
params: ['body'],
bind: function () {
tinyMCE.get('editor').setContent(this.params.body);
var that = this;
tinyMCE.get('editor').on('change', function(e) {
that.vm.body = this.getContent();
});
}
});
The trick was storing the directive in the temporary variable "that" so you could access it from within the change event callback.

There is now an npm package which is a thin wrapper around TinyMCE, making it easier to use in a Vue application.
It is open source with code on GitHub.
Installation:
$ npm install #tinymce/tinymce-vue
Usage:
import Editor from '#tinymce/tinyme-vue';
Templates:
<editor api-key="API_KEY" :init="{plugins: 'wordcount'}"></editor>
Where API_KEY is your API key from tiny. The init section is the same as the default init statement except you do not need the selector. For an example see the documentation.

Get the calling element with vue.js

I want to get the calling html element in vue.js to modify it via jQuery. For now I give every element the class name + the index and call it via jQuery afterwards, but this looks like a crazy hack.
What I want to do:
new Vue({
el: "#app",
data: {
testFunction : function(element) {
$(element).doSomethingWithIt(); //do something with the calling element
}
}
});
This is the calling element:
<div v-on:click="testFunction(???)">Test</div>
What can I pass into the function to get the div-element or is there another way to achieve this?

You could get the element from the event like this:
new Vue({
el: "#app",
methods: {
testFunction : function(event) {
$(event.target).doSomethingWithIt();
}
}
});
And then:
<div v-on:click="testFunction">Test</div>
Or (if you want to pass another parameter):
<div v-on:click="testFunction($event)">Test</div>
[demo]

Youre doing it the wrong way.
new Vue({
el: "#app",
data: {
testFunction : function(element) {
$(element).doSomethingWithIt(); //do something with the calling element
}
}
});
data is the state or storage of data for your app.
you need to create methods object for your methods
new Vue({
el: "#app",
data: {
},
methods: {
testFunction : function(element) {
$(element).doSomethingWithIt(); //do something with the calling element
}
}
});

You want v-el to be able to run jQuery on it. For example:
<div v-on:click="testFunction" v-el:my-element>Test</div>
then:
// as noted by #vistajess
// your function should be in the methods object
// not the data object
methods: {
testFunction : function() {
$(this.$els.myElement).doSomethingWithIt();
}
}

Vue.js - How to handle all elements with the same selector?

How to create a Vue.js logic to handle all tag elements with the same class selector?
I have this simple code: http://jsfiddle.net/x2spo1qu/
var dropdown = new Vue({
el: '.dropdown',
data: {
is_open : false
},
methods: {
onClick: function (event) {
// # toggle the dropdown open/closed state
// ---
this.is_open = ! this.is_open;
},
mouseLeave: function (event) {
// # set show of dropdown to false
// ----
this.is_open = false;
}
}
});
But it only works for the first dropdown in the HTML and does not work for the second.
Please explain me how to do this.

From vuejs.org :
Vue.js uses DOM-based templating. Each Vue instance is associated with a corresponding DOM element. When a Vue instance is created, it recursively walks all child nodes of its root element while setting up the necessary data bindings. After the View is compiled, it becomes reactive to data changes.
you can achieve this using Vue component system
follow this example :
var bs3_dropdown = Vue.extend
({
props: ['name'],
replace: true,
template: '<li class="dropdown" v-class="open : is_open" v-on="mouseleave : mouseLeave"> {{ name }} <span class="caret"></span> <ul class="dropdown-menu" role="menu"> <content></content> </ul> </li>',
data: function () {
return {
is_open: false,
}
},
methods : {
onClick : function(event) {
// # toggle the dropdown open/closed state
// ---
this.is_open = ! this.is_open;
},
mouseLeave : function(event) {
// # set show of dropdown to false
// ----
this.is_open = false;
}
},
created: function () {
console.log('An instance of MyComponent has been created!')
}
});
Vue.component('bs3-dropdown', bs3_dropdown);
full : http://jsfiddle.net/msa965j5/
there is some bug beacuse of initial HTML