spee.ch/views/index.handlebars

<div class="row row--tall row--padded flex-container">
    <form>
        <input class="input-file" type="file" id="siofu_input" name="siofu_input" accept="video/*,image/*" onchange="previewAndStageFile(event.target.files[0])" enctype="multipart/form-data"/>
    </form>
    <div id="primary-dropzone" class="dropzone row row--tall flex-container flex-container--center" ondrop="drop_handler(event);" ondragover="dragover_handler(event);" ondragend="dragend_handler(event)" ondragenter="dragenter_handler(event)" ondragleave="dragexit_handler(event)" onclick="triggerFileChooser('siofu_input', event)">
        <div id="primary-dropzone-instructions">
            <div class="info-message-placeholder">
                <div class="info-message info-message--failure" id="input-error-file-selection" hidden="true"></div>
            </div>
            <p>Drag & drop image or video here to publish</p>
            <p>OR</p>
            <p><label class="input-file-label">CHOOSE FILE</label></p>
        </div>
    </div>
    <div id="publish-form" class="hidden">
        <div class="column column--10">
            <!-- title input -->
            <input type="text" id="publish-title" class="input-text input-text--large input-text--full-width" placeholder="Give your post a title...">
        </div>
        <div class="column column--5 column--med-10" >
            <!-- preview -->
            <div class="row row--padded">
                <div id="asset-preview-holder" class="dropzone" ondrop="drop_handler(event);" ondragover="dragover_handler(event);" ondragend="dragend_handler(event)" onmouseenter="showInstructions()" onmouseleave="hideInstructions()" onclick="triggerFileChooser('siofu_input', event)">
                    <div id="asset-preview-target"></div>
                    <div id="preview-dropzone-instructions" class="hidden">
                        <p>Drag & drop image or video here</p>
                        <p>OR</p>
                        <label class="input-file-label">CHOOSE FILE</label>
                    </div>
                </div>
            </div>
        </div><div class="column column--5 column--med-10 align-content-top">
            <div id="publish-active-area">
                {{> publishForm-Channel}}
                {{> publishForm-Url}}
                {{> publishForm-Thumbnail}}
                {{> publishForm-Details}}
                {{> publishForm-Submit}}
            </div>
        </div>
    </div>

    <div id="publish-status" class="hidden">
        <div id="publish-update" class="row align-content-center"></div>
        <div id="publish-progress-bar" class="row align-content-center"></div>
        <div id="upload-percent" class="row align-content-center"></div>
    </div>
</div>


<script src="/socket.io/socket.io.js"></script>
<script src="/siofu/client.js"></script>
<script typ="text/javascript">

    checkCookie();

    const socket = io();
    const uploader = new SocketIOFileUpload(socket);
    let stagedFiles = null;

    const publishFormWrapper = document.getElementById('publish-form');
    const publishStatus = document.getElementById('publish-status');
    const publishUpdate = document.getElementById('publish-update');
    const publishProgressBar = document.getElementById('publish-progress-bar');
    const uploadPercent = document.getElementById('upload-percent');

	/* socketio-file-upload listeners */
	uploader.addEventListener('start', function(event){
	    console.log('starting upload');
        addInputValuesToFileMetaData(event)
        // hide the publish tool
        hidePublishTools();
		// show the progress status and animation
        showPublishStatus();
        showPublishProgressBar();
	});
	uploader.addEventListener('progress', function(event){
		var percent = event.bytesLoaded / event.file.size * 100;
        updatePublishStatus('<p>File is loading to server</p>')
		updateUploadPercent(`<p>${percent.toFixed(2)}%</p>`)
	});
	/* socket.io message listeners */
	socket.on('publish-update', function(msg){
		updatePublishStatus(`<p>${msg}</p>`);
        updateUploadPercent(`<p>Curious what magic is happening here? <a target="blank" href="https://lbry.io/faq/what-is-lbry">learn more</a></p>`);
	});
	socket.on('publish-failure', function(msg){
        updatePublishStatus('<p> --(✖╭╮✖)→ </p><p>' + JSON.stringify(msg) + '</p><strong>For help, post the above error text in the #speech channel on the <a href="https://lbry.slack.com/" target="_blank">lbry slack</a></strong>');
	    hidePublishProgressBar();
	    hideUploadPercent();
	});
	socket.on('publish-complete', function(msg){
		const showUrl = msg.result.claim_id + "/" + msg.name;
		// update status
		updatePublishStatus('<p>Your publish is complete! You are being redirected to it now.</p>');
        updateUploadPercent('<p><a target="_blank" href="\' + showUrl + \'">If you do not get redirected, click here.</a></p>')
        // redirect the user
		window.location.href = showUrl;
	});

	function hidePublishTools() {
        publishFormWrapper.setAttribute('class', 'hidden');
    }
    // publish status functions
    function showPublishStatus() {
        publishStatus.setAttribute('class', 'row row--tall flex-container flex-container--center');
    }
    function updatePublishStatus(msg){
        publishUpdate.innerHTML = msg;
    }
    // progress bar functions
    function showPublishProgressBar(){
        createProgressBar(publishProgressBar, 12);
    }
    function hidePublishProgressBar(){
        publishProgressBar.hidden = true;
    }
    // upload percent functions
    function updateUploadPercent(msg){
        uploadPercent.innerHTML = msg;
    }
    function hideUploadPercent(){
        uploadPercent.hidden = true;
    }

    function addInputValuesToFileMetaData(event) {
        // get values from inputs
        const name = document.getElementById('claim-name-input').value;
        const title = document.getElementById('publish-title').value;
        const description = document.getElementById('publish-description').value;
        const license = document.getElementById('publish-license').value;
        const nsfw = document.getElementById('publish-nsfw').checked;
        const anonymous = document.getElementById('anonymous-select').checked;
        const channel = document.getElementById('channel-name-select').value;
        const thumbnail = document.getElementById('claim-thumbnail-input').value;
        // set values on file meta data
        event.file.meta.name = name;
        event.file.meta.title = title;
        event.file.meta.description = description;
        event.file.meta.license = license;
        event.file.meta.nsfw = nsfw;
        event.file.meta.type = stagedFiles[0].type;
        console.log('anonymous?', anonymous);
        if (!anonymous) {
            console.log('channel:', channel);
            event.file.meta.channel = channel;
        }
        if (thumbnail && (thumbnail.trim !== '')){
            event.file.meta.thumbnail = thumbnail;
        }
    }
</script>