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Components-based design system written in elixir
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Files
lib/moon_web/pages/components/file_input_page.ex
defmodule MoonWeb.Pages.Components.FileInputPage do
@moduledoc false
use MoonWeb, :live_view
alias Moon.Autolayouts.TopToDown
alias Moon.Components.Button
alias Moon.Components.FileInput
alias Moon.Components.Form
alias Moon.Components.Link
alias MoonWeb.Components.ExampleAndCode
alias MoonWeb.Components.Page
alias MoonWeb.Components.ComponentPageDescription
alias __MODULE__.SimpleS3Upload
data(breadcrumbs, :any,
default: [
%{
to: "#",
name: "Components v1"
},
%{
to: "/components/file-input",
name: "File Input"
}
]
)
def render(assigns) do
~F"""
<Page {=@theme_name} {=@active_page} {=@breadcrumbs} {=@direction}>
<ComponentPageDescription title="File Input">
<p>
Uploads: <Link to="https://hexdocs.pm/phoenix_live_view/uploads.html">https://hexdocs.pm/phoenix_live_view/uploads.html</Link>
</p>
<p>
External uploads: <Link to="https://hexdocs.pm/phoenix_live_view/uploads-external.html">https://hexdocs.pm/phoenix_live_view/uploads-external.html</Link>
</p>
</ComponentPageDescription>
<ExampleAndCode title="Local upload" id="file_input_1">
<:example>
<Form id="upload-form-1" for={:example_form} change="upload_changed" submit="upload_submitted">
<TopToDown>
<FileInput
conf={@uploads.some_picture_file}
label="Upload your ID"
placeholder="Choose a photo..."
cancel_upload="cancel-upload"
/>
<Button type="submit" variant="primary">Upload</Button>
</TopToDown>
</Form>
</:example>
<:code>{get_example_1_code()}</:code>
<:state>{get_example_1_state(assigns)}</:state>
</ExampleAndCode>
<ExampleAndCode title="Upload directly from browser to S3" id="file_input_2">
<:example>
<Form
id="upload-form-2"
for={:example_form_for_s3}
change="upload_s3_changed"
submit="upload_s3_submitted"
>
<TopToDown>
<FileInput
conf={@uploads.some_picture_file_for_s3}
label="Upload your ID"
placeholder="Choose a photo..."
cancel_upload="cancel-upload"
/>
<Button type="submit" variant="primary">Upload</Button>
</TopToDown>
</Form>
</:example>
<:code>{get_example_2_code()}</:code>
<:state>{get_example_2_state(assigns)}</:state>
</ExampleAndCode>
<ExampleAndCode title="Custom design instead of button" id="file_input_3">
<:example>
<Form id="upload-form-3" for={:example_form} change="upload_changed" submit="upload_submitted">
<TopToDown>
<FileInput conf={@uploads.some_picture_file} cancel_upload="cancel-upload">
.oOo.
</FileInput>
<Button type="submit" variant="primary">Upload</Button>
</TopToDown>
</Form>
</:example>
<:code>{get_example_3_code()}</:code>
<:state>{get_example_1_state(assigns)}</:state>
</ExampleAndCode>
</Page>
"""
end
def mount(_params, _session, socket) do
socket =
assign(socket,
uploaded_files: []
)
|> allow_upload(:some_picture_file,
accept: ~w(.jpg .jpeg .png .pdf),
max_file_size: 1024 * 1024,
max_entries: 1
)
|> allow_upload(:some_picture_file_for_s3,
accept: ~w(.jpg .jpeg .png .pdf),
max_file_size: 1024 * 1024,
max_entries: 1,
external: &presign_upload/2
)
{:ok, socket}
end
def handle_params(_params, uri, socket) do
{:noreply, assign(socket, uri: uri)}
end
def handle_event("upload_changed", _params, socket) do
{:noreply, socket}
end
def handle_event("upload_s3_changed", _params, socket) do
{:noreply, socket}
end
def handle_event("upload_s3_submitted", _params, socket) do
consume_uploaded_entries(socket, :image, fn _meta, entry -> {:ok, entry} end)
{:noreply, socket}
end
def handle_event("cancel_upload", %{"ref" => ref}, socket) do
{:noreply, cancel_upload(socket, :image, ref)}
end
def presign_upload(entry, socket) do
uploads = socket.assigns.uploads
s3_config = Application.get_env(:moon, :s3)
bucket = s3_config[:bucket]
key = "uploaded-file"
config = %{
region: s3_config[:region],
access_key_id: s3_config[:access_key_id],
secret_access_key: s3_config[:secret_access_key]
}
{:ok, fields} =
SimpleS3Upload.sign_form_upload(config, bucket,
key: key,
content_type: entry.client_type,
max_file_size: uploads.some_picture_file_for_s3.max_file_size,
expires_in: :timer.hours(1)
)
meta = %{
uploader: "S3",
key: key,
url: "https://#{bucket}.s3.#{config.region}.amazonaws.com/",
fields: fields
}
{:ok, meta, socket}
end
def get_example_1_state(assigns) do
"""
@uploaded_files = #{inspect(assigns.uploaded_files)}
@uploads.some_picture_file = #{inspect(assigns.uploads.some_picture_file)}
"""
end
def get_example_2_state(assigns) do
"""
@uploaded_files = #{inspect(assigns.uploaded_files)}
@uploads.some_picture_file = #{inspect(assigns.uploads.some_picture_file)}
"""
end
def get_example_1_code() do
"""
<Form id="upload-form-1" for={:example_form} change="upload_changed" submit="upload_submitted">
<TopToDown>
<FileInput conf={@uploads.some_picture_file} label="Upload your ID" placeholder="Choose a photo..." />
<section phx-drop-target={@uploads.some_picture_file.ref} class={"p-4", Moon.Components.FieldBorder.get_default_class()}>
<h1>Drag and drop area</h1>
<div>
{#for entry <- @uploads.some_picture_file.entries}
<.live_img_preview entry={entry} style="max-width: 200px; max-height: 200px;" />
<progress value={entry.progress} max="100">{entry.progress}</progress>
<button phx-click="cancel-upload" phx-value-ref={entry.ref} aria-label="cancel">×</button>
{#for err <- upload_errors(@uploads.some_picture_file, entry)}
<p class="alert alert-danger">{inspect(err)}</p>
{/for}
{/for}
</div>
{#for err <- upload_errors(@uploads.some_picture_file)}
<p class="alert alert-danger">{inspect(err)}</p>
{/for}
</section>
<Button type="submit" variant="primary">Upload</Button>
</TopToDown>
</Form>
"""
end
def get_example_2_code() do
"""
<Form id="upload-form-2" for={:example_form_for_s3} change="upload_s3_changed" submit="upload_s3_submitted">
<TopToDown>
<FileInput conf={@uploads.some_picture_file_for_s3} label="Upload your ID" placeholder="Choose a photo..." />
<section phx-drop-target={@uploads.some_picture_file_for_s3.ref} class={"p-4", Moon.Components.FieldBorder.get_default_class()}>
<h1>Drag and drop area</h1>
<div>
{#for entry <- @uploads.some_picture_file_for_s3.entries}
<.live_img_preview entry={entry} style="max-width: 200px; max-height: 200px;" />
<progress value={entry.progress} max="100">{entry.progress}</progress>
<button phx-click="cancel-upload" phx-value-ref={entry.ref} aria-label="cancel">×</button>
{#for err <- upload_errors(@uploads.some_picture_file_for_s3, entry)}
<p class="alert alert-danger">{inspect(err)}</p>
{/for}
{/for}
</div>
{#for err <- upload_errors(@uploads.some_picture_file_for_s3)}
<p class="alert alert-danger">{inspect(err)}</p>
{/for}
</section>
<Button type="submit" variant="primary">Upload</Button>
</TopToDown>
</Form>
"""
end
def get_example_3_code() do
"""
<Form id="upload-form-3" for={:example_form} change="upload_changed" submit="upload_submitted">
<TopToDown>
<FileInput
conf={@uploads.some_picture_file}
label="Upload your ID"
placeholder="Choose a photo..."
cancel_upload="cancel-upload"
>
.oOo.
</FileInput>
<Button type="submit" variant="primary">Upload</Button>
</TopToDown>
</Form>
"""
end
end