controllets/create-card-controllet/create-card-controllet.html

<link rel="import" href="../../bower_components/polymer/polymer.html"/>
<link rel="import" href="../../bower_components/paper-material/paper-material.html"/>
<link rel="import" href="../../bower_components/paper-fab/paper-fab.html"/>
<link rel="import" href="../../bower_components/iron-icons/iron-icons.html"/>
<link rel="import" href="../../bower_components/paper-input/paper-textarea.html"/>

<link rel="import" href="../../datalets/preview-datalet/preview-datalet.html" />
<link rel="import" href="../../controllets/paper-card-controllet/paper-card-controllet.html"/>

<dom-module id="create-card-controllet">

    <template>
        <link rel="stylesheet" href="../shared_js/perfect-scrollbar/css/perfect-scrollbar.min.css">
        <link href='https://fonts.googleapis.com/css?family=Roboto' rel='stylesheet' type='text/css'>
        <style>
            :host {
                display: inline-block;
                margin: 0 8px 8px ;
                font-size: 14px;
                text-align: justify;
                line-height: 10px;
                --paper-fab-background: var(--accent-color);
                font-family: 'Roboto', sans-serif;
                padding-bottom: 30px;
                width: 100%;
            }

            paper-material {
                background-color: white;
                border-width: 1em;
                padding: 5px;
                margin-bottom: 20px;
            }

            paper-fab {
                position: relative;
                left: 90%;
                --paper-fab-background:#2196F3;
            }

            #content ::content {
                /*padding: 0 16px 8px;*/
                padding: 0 16px 8px;
                font-weight: 300;
                color: var(--secondary-text-color);
                line-height: 24px;
                max-height: 400px;
                position:relative;
                overflow: auto;
            }
            ::content.buttons {
                margin-top: 8px;
            }
            ::content paper-button, ::content paper-icon-button {
                font-weight: 500;
                color: var(--accent-color);
            }

            .avatar
            {
                display: inline-block;
                height: 0.7em;
                width: 0.7em;
                border-radius: 50%;
                background: var(--paper-blue-500);
                color: white;
                line-height: 2em;
                font-size: 1.87em;
                text-align: center;
            }

            .title
            {
                position: relative;
                left: 0px;
                /*top: 0.60vh;
                margin-left: 20px;*/
            }

            .big
            {
                font-size: 1.37em;
                color: var(--google-grey-500);
            }

            .medium
            {
                font-size: 1em;
                padding-bottom: 0.5em;
                color : #000000;
                font-weight: bold;
            }

            .small
            {
                font-size: 0.8em;
                padding-top: 10px;
                color: var(--paper-blue-500);
                font-weight: bold;
            }

            paper-textarea.custom_textarea{
               /*max-width:40vw;*/
            }

            div.vertical{
                margin: 20px;
            }


        </style>

        <div class="horizontal layout">

            <div class="vertical layout" style="width: 60%;">

                <div class="horizontal layout">
                    <div class="avatar"></div>
                    <div class="title">
                        <div class="big">Title</div>
                        <div class="small">This is the tile for your new card. It'll be visualized in the bottom black section.</div>
                    </div>
                </div>

                <paper-material animated elevation="2">
                   <paper-textarea class="custom_textarea" id="title"
                                                           label=""
                                                           char-counter
                                                           maxlength="30"
                                                           rows="1"
                                                           value="{{title}}">

                   </paper-textarea>
                </paper-material>

                <template is="dom-if" if="{{checkType(type, 'link')}}">

                    <div class="horizontal layout">
                        <div class="avatar"></div>
                        <div class="title">
                            <div class="big">Link</div>
                            <div class="small">This is the link you want to share.</div>
                        </div>
                    </div>

                    <paper-material animated elevation="2">
                        <paper-textarea class="custom_textarea" id="link"
                                                                label=""
                                                                auto-validate
                                                                pattern="^(http[s]?:\\/\\/(www\\.)?|ftp:\\/\\/(www\\.)?|www\\.){1}([0-9A-Za-z-\\.@:%_\+~#=]+)+((\\.[a-zA-Z]{2,3})+)(/(.)*)?(\\?(.)*)?"
                                                                error-message="Urls only!"
                                                                value="{{link}}">

                        </paper-textarea>
                    </paper-material>

                </template>


                <template is="dom-if" if="{{checkType(type, 'text')}}">

                    <div class="horizontal layout">
                        <div class="avatar"></div>
                        <div class="title">
                            <div class="big">Text content</div>
                            <div class="small">It's the text content of your card. It'll be visualize in the body(yellow top section).</div>
                        </div>
                    </div>

                    <paper-material animated elevation="2">
                        <paper-textarea class="custom_textarea" id="text"
                                                                label=""
                                                                char-counter
                                                                max-rows="6"
                                                                maxlength="1024"
                                                                value="{{text}}">

                        </paper-textarea>
                    </paper-material>

                </template>

                <div class="horizontal layout">
                    <div class="avatar"></div>
                    <div class="title">
                        <div class="big">Comment</div>
                        <div class="small">Copy and paste/drag and drop in the textarea the url of datasource</div>
                    </div>
                </div>

                <paper-material animated elevation="2">
                    <paper-textarea class="custom_textarea" id="comment"
                                    label=""
                                    char-counter
                                    maxlength="100"
                                    value="{{comment}}">

                    </paper-textarea>
                </paper-material>

            </div>

            <div class="vertical layout" style="width: 40%;">

                <paper-fab mini icon="add-circle" on-click="_handleFabClick"></paper-fab>

                <div id="card_preview"></div>
            </div>


        </div>

    </template>

    <script src="../shared_js/perfect-scrollbar/js/min/perfect-scrollbar.jquery.min.js"></script>

    <script>
        Polymer({
            is: "create-card-controllet",
            properties: {
                type:{
                    type: String,
                    value: "text"
                },

                title:{
                    type: String,
                    value: "Title",
                    observer : '_valueChanged'
                },
                text:{
                    type: String,
                    value: "Text content",
                    observer : '_valueChanged'
                },
                content:{
                    type: String,
                    value: undefined,
                    observer : '_valueChanged'
                },
                comment:{
                    type: String,
                    value: "comment",
                    observer : '_valueChanged'
                },

                timer :{
                    type: Number,
                    value : 0
                }
            },

            ready: function(){
            },


            checkType: function(type, check){
                return (type == check);
            },

            _handleFabClick: function(e){
                this.fire('create-card-controllet_button-clicked', {data : this});
            },

            _valueChanged: function(oldvalue, newValue) {
               var card = '<paper-card-controllet'   +
                              ' class="grid-item"'    +
                              ' width="300"'          +
                              ' height="300"'         +
                              ' type="'+ this.type    + '"' +
                              ' text="'+ this.comment + '"' +
                              ' legend="'+ this.title + '">';
               if(this.type == 'link'){
                   card += '<preview-datalet data-url="'+ this.link + '" url="'+ this.link + '"></preview-datalet>';
               }else{
                   card += this.text;
               }

               card += '</paper-card-controllet>';

                clearTimeout (this.timer);
                //Firefox stuff
                var _this = this;
                this.timer = setTimeout(function(){
                    _this.$.card_preview.innerHTML = card;
                }, 1000);


            }
        })
    </script>

</dom-module>