Class: ImageUploaderComponent

Inherits:
Funicular::Component
  • Object
show all
Defined in:
lib/components/image_uploader_component.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#selected_file ⇒ Object (readonly)

Returns the value of attribute selected_file.



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# File 'lib/components/image_uploader_component.rb', line 2

def selected_file
  @selected_file
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/components/image_uploader_component.rb', line 29

def clear
  @selected_file = nil
  patch(preview_url: nil, uploaded_url: nil, error: nil)
  emit_select(nil, nil)
end

#handle_file_change(event = nil) ⇒ Object 



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# File 'lib/components/image_uploader_component.rb', line 14

def handle_file_change(event = nil)
  Funicular::FileUpload.select_file_with_preview(input_id) do |file, preview_url|
    if file && preview_url
      @selected_file = file
      patch(preview_url: preview_url, error: nil)
      emit_select(file, preview_url)
      upload if props[:auto_upload]
    else
      @selected_file = nil
      patch(preview_url: nil)
      emit_select(nil, nil)
    end
  end
end

#handle_upload_result(result) ⇒ Object 



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# File 'lib/components/image_uploader_component.rb', line 61

def handle_upload_result(result)
  if result.nil?
    patch(uploading: false, error: "Failed to parse response")
    emit_error("Failed to parse response")
    return
  end

  if result["error"] || result["errors"]
    message = result["error"] || result["errors"].join(", ")
    patch(uploading: false, error: message)
    emit_error(message, result)
    return
  end

  @selected_file = nil
  uploaded_url = result[response_url_key] || props[:src]
  patch(
    preview_url: nil,
    uploaded_url: uploaded_url,
    uploading: false,
    error: nil,
    cache_buster: Time.now.to_i
  )
  emit_upload(result)
end

#initialize_state ⇒ Object 



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# File 'lib/components/image_uploader_component.rb', line 4

def initialize_state
  {
    preview_url: nil,
    uploaded_url: nil,
    uploading: false,
    error: nil,
    cache_buster: Time.now.to_i
  }
end

#render ⇒ Object 



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# File 'lib/components/image_uploader_component.rb', line 87

def render
  div(class: container_class) do
    render_image
    render_error
    div(class: controls_class) do
      input(
        type: "file",
        id: input_id,
        accept: props[:accept] || "image/*",
        onchange: :handle_file_change,
        class: input_class
      )
      if clearable?
        button(type: "button", class: clear_button_class, onclick: -> { clear }) do
          props[:clear_label] || "Clear"
        end
      end
      if props[:show_upload_button]
        button(
          type: "button",
          class: upload_button_class,
          disabled: state.uploading || @selected_file.nil?,
          onclick: -> { upload }
        ) do
          state.uploading ? uploading_label : upload_label
        end
      end
    end
  end
end

#upload(fields: nil, url: nil) ⇒ Object 



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# File 'lib/components/image_uploader_component.rb', line 35

def upload(fields: nil, url: nil)
  endpoint = url || props[:upload_url]
  unless endpoint
    patch(error: "upload_url is required")
    emit_error("upload_url is required")
    return
  end

  unless @selected_file
    patch(error: "No file selected")
    emit_error("No file selected")
    return
  end

  patch(uploading: true, error: nil)

  Funicular::FileUpload.upload_with_formdata(
    endpoint,
    fields: fields || upload_fields,
    file_field: file_field,
    file: @selected_file
  ) do |result|
    handle_upload_result(result)
  end
end