livebook/lib/livebook_web/helpers.ex
Jonatan Kłosko f64dd0ea90
Restructure j/k navigation to support headlines (#707)
* Accessibility fixes

* Restructure j/k navigation to support headlines

* Focus modal content when open

* Further focus adjustments

* Fix tests

* Remove unused functions
2021-11-16 21:57:10 +01:00

378 lines
10 KiB
Elixir

defmodule LivebookWeb.Helpers do
use Phoenix.Component
alias Phoenix.LiveView.JS
alias LivebookWeb.Router.Helpers, as: Routes
alias Livebook.FileSystem
@doc """
Wraps the given content in a modal dialog.
When closed, the modal redirects to the given `:return_to` URL.
## Example
<.live_modal return_to={...}>
<.live_component module={MyComponent} />
</.live_modal>
"""
def modal(assigns) do
assigns =
assigns
|> assign_new(:class, fn -> "" end)
~H"""
<div class="fixed z-[10000] inset-0 fade-in" phx-remove={JS.transition("fade-out")}>
<!-- Modal container -->
<div class="h-screen flex items-center justify-center p-4">
<!-- Overlay -->
<div class="absolute inset-0 bg-gray-500 opacity-75 z-0" aria-hidden="true"></div>
<!-- Modal box -->
<div class={"relative max-h-full overflow-y-auto bg-white rounded-lg shadow-xl #{@class}"}
role="dialog"
aria-modal="true"
tabindex="0"
autofocus
phx-window-keydown={click_modal_close()}
phx-click-away={click_modal_close()}
phx-key="escape">
<%= live_patch to: @return_to,
class: "absolute top-6 right-6 text-gray-400 flex space-x-1 items-center",
aria_label: "close modal",
id: "close-modal-button" do %>
<span class="text-sm">(esc)</span>
<.remix_icon icon="close-line" class="text-2xl" />
<% end %>
<%= render_slot(@inner_block) %>
</div>
</div>
</div>
"""
end
defp click_modal_close(js \\ %JS{}) do
JS.dispatch(js, "click", to: "#close-modal-button")
end
@doc """
Determines user platform based on the given *User-Agent* header.
"""
@spec platform_from_user_agent(String.t()) :: :linux | :mac | :windows | :other
def platform_from_user_agent(user_agent) when is_binary(user_agent) do
cond do
linux?(user_agent) -> :linux
mac?(user_agent) -> :mac
windows?(user_agent) -> :windows
true -> :other
end
end
defp linux?(user_agent), do: String.match?(user_agent, ~r/Linux/)
defp mac?(user_agent), do: String.match?(user_agent, ~r/Mac OS X/)
defp windows?(user_agent), do: String.match?(user_agent, ~r/Windows/)
@doc """
Returns path to specific process dialog within LiveDashboard.
"""
def live_dashboard_process_path(socket, pid) do
pid_str = Phoenix.LiveDashboard.PageBuilder.encode_pid(pid)
Routes.live_dashboard_path(socket, :page, node(), "processes", info: pid_str)
end
@doc """
Converts human-readable strings to strings which can be used
as HTML element IDs (compatible with HTML5)
At the same time duplicate IDs are enumerated to avoid duplicates
"""
@spec names_to_html_ids(list(String.t())) :: list(String.t())
def names_to_html_ids(names) do
names
|> Enum.map(&name_to_html_id/1)
|> Enum.map_reduce(%{}, fn html_id, counts ->
counts = Map.update(counts, html_id, 1, &(&1 + 1))
case counts[html_id] do
1 -> {html_id, counts}
count -> {"#{html_id}-#{count}", counts}
end
end)
|> elem(0)
end
defp name_to_html_id(name) do
name
|> String.trim()
|> String.downcase()
|> String.replace(~r/\s+/u, "-")
end
@doc """
Renders [Remix](https://remixicon.com) icon.
## Examples
<.remix_icon icon="cpu-line" />
<.remix_icon icon="cpu-line" class="align-middle mr-1" />
"""
def remix_icon(assigns) do
assigns =
assigns
|> assign_new(:class, fn -> "" end)
|> assign(:attrs, assigns_to_attributes(assigns, [:icon, :class]))
~H"""
<i class={"ri-#{@icon} #{@class}"} aria-hidden="true" {@attrs}></i>
"""
end
@doc """
Renders a list of select input options with the given one selected.
## Examples
<.select
name="language"
selected={@language}
options={[en: "English", pl: "Polski", fr: "Français"]} />
"""
def select(assigns) do
~H"""
<select class="input" name={@name}>
<%= for {value, label} <- @options do %>
<option value={value} selected={value == @selected}>
<%= label %>
</option>
<% end %>
</select>
"""
end
@doc """
Renders a checkbox input styled as a switch.
Also, a hidden input with the same name is rendered
alongside the checkbox, so the submitted value is
always either `"true"` or `"false"`.
## Examples
<.switch_checkbox
name="likes_cats"
label="I very much like cats"
checked={@likes_cats} />
"""
def switch_checkbox(assigns) do
assigns =
assigns
|> assign_new(:label, fn -> nil end)
|> assign_new(:disabled, fn -> false end)
|> assign_new(:class, fn -> "" end)
|> assign(
:attrs,
assigns_to_attributes(assigns, [:label, :name, :checked, :disabled, :class])
)
~H"""
<div class="flex space-x-3 items-center justify-between">
<%= if @label do %>
<span class="text-gray-700"><%= @label %></span>
<% end %>
<label class={"switch-button #{if(@disabled, do: "switch-button--disabled")}"}>
<input type="hidden" value="false" name={@name} />
<input
type="checkbox"
value="true"
class={"switch-button__checkbox #{@class}"}
name={@name}
checked={@checked}
{@attrs} />
<div class="switch-button__bg"></div>
</label>
</div>
"""
end
@doc """
Renders a choice button that is either active or not.
## Examples
<.choice_button active={@tab == "my_tab"} phx-click="set_my_tab">
My tab
</.choice_button>
"""
def choice_button(assigns) do
assigns =
assigns
|> assign_new(:class, fn -> "" end)
|> assign_new(:disabled, fn -> assigns.active end)
|> assign(:attrs, assigns_to_attributes(assigns, [:active, :class, :disabled]))
~H"""
<button class={"choice-button #{if(@active, do: "active")} #{@class}"} disabled={@disabled} {@attrs}>
<%= render_slot(@inner_block) %>
</button>
"""
end
@doc """
Renders a highlighted code snippet.
## Examples
<.code_preview
source_id="my-snippet"
language="elixir"
source="System.version()" />
"""
def code_preview(assigns) do
~H"""
<div class="markdown">
<pre><code
class="tiny-scrollbar"
id={"#{@source_id}-highlight"}
phx-hook="Highlight"
data-language={@language}><div id={@source_id} data-source><%= @source %></div><div data-target></div></code></pre>
</div>
"""
end
@doc """
Renders text with a tiny label.
## Examples
<.labeled_text label="Name" text="Sherlock Holmes" />
"""
def labeled_text(assigns) do
assigns = assign_new(assigns, :one_line, fn -> false end)
~H"""
<div class="flex flex-col space-y-1">
<span class="text-xs text-gray-500">
<%= @label %>
</span>
<span class={"text-gray-800 text-sm font-semibold #{if @one_line, do: "whitespace-nowrap overflow-auto tiny-scrollbar"}"}>
<%= @text %>
</span>
</div>
"""
end
@doc """
Renders a wrapper around password input
with an added visibility toggle button.
The toggle switches the input's type between `password`
and `text`.
## Examples
<.with_password_toggle id="input-id">
<input type="password" ...>
</.with_password_toggle>
"""
def with_password_toggle(assigns) do
~H"""
<div id={"password-toggle-#{@id}"} class="relative inline w-min" phx-hook="PasswordToggle">
<!-- render password input -->
<%= render_slot(@inner_block) %>
<button
class="bg-gray-50 p-1 icon-button absolute inset-y-0 right-1"
type="button"
aria-label="toggle password visibility"
phx-change="ignore">
<.remix_icon icon="eye-line" class="text-xl" />
</button>
</div>
"""
end
@doc """
Renders a popup menu that shows up on toggle click.
## Assigns
* `:id` - unique HTML id
* `:disabled` - whether the menu is active. Defaults to `false`
* `:position` - which side of the clickable the menu menu should
be attached to, either `"left"` or `"right"`. Defaults to `"right"`
* `:secondary_click` - whether secondary click (usually right mouse click)
should open the menu. Defaults to `false`
## Examples
<.menu id="my-menu">
<:toggle>
<button>Open</button>
</:toggle>
<:content>
<button class"menu-item" role="menuitem">Option 1</button>
</:content>
</.menu>
"""
def menu(assigns) do
assigns =
assigns
|> assign_new(:disabled, fn -> false end)
|> assign_new(:position, fn -> "right" end)
|> assign_new(:secondary_click, fn -> false end)
~H"""
<div class="relative"
id={@id}>
<div
phx-click={not @disabled && JS.toggle(to: "##{@id}-content")}
phx-click-away={JS.hide(to: "##{@id}-content")}
data-contextmenu-trigger-click={@secondary_click}
phx-window-keydown={JS.hide(to: "##{@id}-content")}
phx-key="escape">
<%= render_slot(@toggle) %>
</div>
<menu id={"#{@id}-content"} class={"hidden menu #{@position}"} role="menu">
<%= render_slot(@content) %>
</menu>
</div>
"""
end
defdelegate ansi_string_to_html(string), to: LivebookWeb.Helpers.ANSI
defdelegate ansi_string_to_html_lines(string), to: LivebookWeb.Helpers.ANSI
@doc """
Renders an icon representing the given file system.
"""
def file_system_icon(assigns)
def file_system_icon(%{file_system: %FileSystem.Local{}} = assigns) do
~H"""
<.remix_icon icon="hard-drive-2-line leading-none" />
"""
end
def file_system_icon(%{file_system: %FileSystem.S3{}} = assigns) do
~H"""
<i class="not-italic">
<span class="text-[0.75em] font-semibold align-middle">S3</span>
</i>
"""
end
@doc """
Formats the given file system into a descriptive label.
"""
def file_system_label(file_system)
def file_system_label(%FileSystem.Local{}), do: "Local disk"
def file_system_label(%FileSystem.S3{} = fs), do: fs.bucket_url
end