mobiledoc template fill in

components.template-tag.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: 'span',
  classNames: ['template-tag'],
  
  click() {
    let tag = this.get('tag');
  	let promise = this.get('onClick')(tag);

    promise.then((tagVal) => {
    	tag.setProperties({
        tag: tagVal,
      	value: tagVal
      });
    });
  }
});

components.template-tags-input.js

import Ember from 'ember';

export default Ember.Component.extend({
  classNames: ['template-tags-input'],
  
  didInsertElement() {
    let uniqueId = this.get('uniqueId');
    let closeAllDropdowns = this.closeAllDropdowns.bind(this);
    let tags = this.get('tags');
    let template = this.get('template');
    let createMarkerables = this.createMarkerables.bind(this);
    // Parse pasted/initial templates and convert to tag atoms
    // see https://github.com/bustlelabs/mobiledoc-kit#dom-parsing-hooks
    let pastedTextPlugin = function(node, builder, { addMarkerable, nodeFinished }) {
      if (node.nodeType === Node.TEXT_NODE) {
        let text = node.textContent;
        let markerables = createMarkerables(text, builder);
       
        markerables.forEach((markerable) => {
          addMarkerable(markerable);
        });

        nodeFinished();
      }
    };
    
    let editor = new Mobiledoc.Editor({
      html: template,
      autofocus: false,
      parserPlugins: [pastedTextPlugin],
      atoms: [
        // tag atom implementation for the editor
        {
        	name: 'tag',
          type: 'dom',
          render: ({ value, env, payload }) => {
            // Remove select when tag erased
            // TODO: Only remove select if open for current tag, might not be able to get into this state any way
            env.onTeardown(() => {
            	closeAllDropdowns(true);
            });
            let container = document.createElement('span');
            let inner = document.createElement('span');
            let open = document.createTextNode('{');
            let close = document.createTextNode('}');
            
            inner.textContent = value;
            inner.classList.add('template-tag-value');
            
            // Allows creating tags from input to position the select correctly
            closeAllDropdowns();
            inner.setAttribute('data-ebd-id', `${uniqueId}-trigger`);
            
            if (!tags.includes(value)) {
              inner.classList.add('template-tag-value-invalid');
            }
            
            container.classList.add('template-tag');
            container.appendChild(open);
            container.appendChild(inner);
            container.appendChild(close);

            inner.onclick = () => {
              closeAllDropdowns();
              // make sure the trigger id is set on this atom, so the menu positions properly.
              inner.setAttribute('data-ebd-id', `${uniqueId}-trigger`);
              this.get('onShowTags')().then((tag) => {
                if (tag !== null) {
                  env.save(tag, payload);
                }
              });
            };
            
          	return container;
          }
        }
      ]
    });
    
    // Handle the creation of tags when typing '{'
    editor.onTextInput({
      name: 'create-tag',
      text: '{',
      run: (editor) => {
        let { range } = editor;
        let position = editor.post.tailPosition();
        let temporaryAtom = editor.insertAtom('tag', '...');
        
        // delete the user's '{'
        editor.deleteAtPosition(range.head, -1, {});
        
        // Move the cursor to the end of temp atom
        editor.selectRange(range);
        
        // Wait for user's tag selection
        this.get('onShowTags')().then((tag) => {
          // Delete the temporary atom
          editor.deleteAtPosition(range.tail, -1, {});
          // Create actual atom
          editor.insertAtom('tag', tag);
        });
      }
    });
    
    editor.render(this.element);
  },
  
  closeAllDropdowns(override) {
  	let dropdownOpen = this.get('dropdownOpen');

    if ((override || !dropdownOpen) && this.$()) {
      let items = this.$('[data-ebd-id]');
      items.attr('data-ebd-id', '');
      this.get('closeDropdown')();
    }
  },
  
  createMarkerables(text, builder) {
    let regInner = /\{(.+?)\}/g;
    let regOuter = /(\{.+?\})/g;
    let markerables = [];
        
    if (text.search(regInner) !== -1) {
      let split = text.split(regOuter);

      markerables = split.map((item) => {
        let match = regInner.exec(item);
        if (match) {
          let tag = match[1];
          return builder.createAtom('tag', tag);
        }
        return builder.createMarker(item);
      });
    }
    
    return markerables;
  }
});

components.template-tags.js

import Ember from 'ember';

export default Ember.Component.extend({
	classNames: ['template-tags'],
  
  actions: {
    openAndSelect(open, close, reposition) {
    	open();
      reposition();
      let defer = Ember.RSVP.defer();
      this.set('defer', defer);
      return defer.promise.then((tag) => {
        close();
      	return tag;
      });
    },
    
    setTag(tag) {
    	let defer = this.get('defer');
      
      defer.resolve(tag);
    }
  }
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  tags: ['name', 'address', 'email'],
  template: `Hi, I'm {name} and I live at {address}`
});

helpers.eq.js

import Ember from 'ember';

export function eq([val1, val2]/*, hash*/) {
  return val1 === val2;
}

export default Ember.Helper.helper(eq);

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

/* required to keep event to working for outside click for dropdown */
#root {
	min-height: 100vh;
}

.template-tags-input {
  background-color: #efefef;
  line-height: 1.5;
}

.template-tag-value-invalid {
	text-decoration: line-through;
}

.template-tag {
	color: tomato;
  cursor: pointer;
}

.template-tag:hover {
	color: indianred;
}

.tag-select,
.ember-basic-dropdown-content {
	background-color: transparent;
}

.ember-basic-dropdown-content {
	margin-top: 12px;
  margin-left: -6px;
}

.tag-select li {
  list-style-type: none;
  padding: 0.2em 0.4em;
  margin-bottom: 0.25em;
  background-color: #eee;
  border-radius: 10px;
  cursor: pointer;
}

.tag-select li:hover {
	background-color: #ddd;
}

.tag-select ul {
  background-color: transparent;
  padding: 0;
  margin: 0;
}

templates.application.hbs

<h1>template-tags</h1>
<p>
  <ul>
    <li>Use `{` character to start adding a template value.</li>
    <li>Click on one of the tags to open the tag select to change it's value.</li>
    <li>To delete, just put your cursor in front of a tag, and hit the backspace key.</li>
    <li>You can also copy & paste. Try copying and pasting this text: {name} lives at {address} and works at {job}.</li>
    <li>Invalid pasted tags will have a strike through.</li>
  </ul>
</p>
<br>

{{template-tags template=template tags=tags onChange=(action (mut template))}}

<div id="ember-basic-dropdown-wormhole"></div>

templates.components.template-tag.hbs

{{yield}}
{{~tag.value~}}

templates.components.template-tags-input.hbs

{{yield}}

templates.components.template-tags.hbs

{{yield}}

{{#basic-dropdown as |dropdown|}}
	{{template-tags-input
  	tags=tags
  	template=template
  	uniqueId=dropdown.uniqueId
    dropdownOpen=dropdown.isOpen
    closeDropdown=dropdown.actions.close
  	onShowTags=(action 'openAndSelect' dropdown.actions.open dropdown.actions.close dropdown.actions.reposition)
    onTagClick=(action 'openAndSelect' dropdown.actions.open dropdown.actions.close dropdown.actions.reposition)}}
  {{#dropdown.content}}
  	<div class='tag-select'>
      <ul>
        {{#each tags as |tag|}}
          <li class='template-tag' onclick={{action 'setTag' tag}}>
            {{tag}}
          </li>
        {{/each}}
      </ul>
    </div>
  {{/dropdown.content}}
{{/basic-dropdown}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0",
    "mobiledoc-kit": "https://unpkg.com/mobiledoc-kit@0.10.15/dist/global/mobiledoc-kit.js"
  },
  "addons": {
    "ember-data": "2.12.1",
    "ember-basic-dropdown": "0.31.0"
  }
}