php-proj/public/app/views/upload.html

<div layout="column" layout-fill layout-align="top center">

    <h1>Upload</h1>
    <div ng-show="isUploadVisible()" class="col-xs-6" lu-busy="imageView">

        <div class="center-block">

            <div image-dropzone="fileLoaded(content, file)" class="dropzone">
                <img ng-show="image != null" ng-src="{{ image.content | toDataUrl }}">
                <p ng-hide="image != null">
                    Drag a file here or <a href="" ng-click="pickFile()">pick one</a>
                </p>
            </div>

            <md-button ng-show="canUpload()" ng-click="upload()" >Upload</md-button>
            <input type="file" class="hidden-input" id="filePicker">
        </div>
    </div>

    <div ng-hide="isUploadVisible()">
        Please <a ui-sref="login">log in</a> or <a ui-sref="signUp">sign up</a> to upload images!
    </div>
</div>