Method addPreviewToggle

app/core/treema-ext.js:129–135

(valEl)

    }

    addPreviewToggle (valEl) {
      return valEl.append($('<div class="toggle-preview-button"></div>').append(
        $('<button>Toggle Preview</button>')
          .addClass('btn btn-sm btn-primary')
          .click(this.togglePreview),
      ))
    }

    onFileChosen (InkBlob) {
      if (!this.settings.filePath) {