Ghost/ghost/admin/app/templates/components/gh-image-uploader.hbs

{{#if file}}
    {{!-- Upload in progress! --}}
    {{#if failureMessage}}
        <div class="failed">{{failureMessage}}</div>
    {{/if}}
    <div class="progress-container">
        <div class="progress">
            <div class="bar {{if failureMessage "fail"}}" style={{progressStyle}}></div>
        </div>
    </div>
    {{#if failureMessage}}
        <button class="gh-btn gh-btn-green" {{action "reset"}}><span>Try Again</span></button>
    {{/if}}
{{else}}
    {{!-- file selection/drag-n-drop  --}}
    <div class="upload-form">
        {{#gh-file-input multiple=false alt=description action=(action "fileSelected") accept=accept}}
            <div class="gh-btn gh-btn-outline" data-test-file-input-description><span>{{description}}</span></div>
        {{/gh-file-input}}
    </div>
{{/if}}