336 lines
12 KiB
Elixir
336 lines
12 KiB
Elixir
defmodule BDS.PreviewAssets do
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@moduledoc false
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@theme_tokens %{
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"amber" => %{light_primary: "#876400", dark_primary: "#c79400"},
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"blue" => %{light_primary: "#2060df", dark_primary: "#8999f9"},
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"cyan" => %{light_primary: "#047878", dark_primary: "#0ab1b1"},
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"fuchsia" => %{light_primary: "#c1208b", dark_primary: "#f869bf"},
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"green" => %{light_primary: "#33790f", dark_primary: "#4eb31b"},
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"grey" => %{light_primary: "#6a6a6a", dark_primary: "#9e9e9e"},
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"indigo" => %{light_primary: "#655cd6", dark_primary: "#a294e5"},
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"jade" => %{light_primary: "#007a50", dark_primary: "#00b478"},
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"lime" => %{light_primary: "#577400", dark_primary: "#82ab00"},
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"orange" => %{light_primary: "#bd3c13", dark_primary: "#f56b3d"},
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"pink" => %{light_primary: "#c72259", dark_primary: "#f7708e"},
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"pumpkin" => %{light_primary: "#9c5900", dark_primary: "#e48500"},
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"purple" => %{light_primary: "#aa40bf", dark_primary: "#d47de4"},
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"red" => %{light_primary: "#c52f21", dark_primary: "#f17961"},
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"sand" => %{light_primary: "#6e6a60", dark_primary: "#a39e8f"},
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"slate" => %{light_primary: "#5d6b89", dark_primary: "#909ebe"},
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"violet" => %{light_primary: "#8352c5", dark_primary: "#b290d9"},
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"yellow" => %{light_primary: "#756b00", dark_primary: "#ad9f00"},
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"zinc" => %{light_primary: "#646b79", dark_primary: "#969eaf"}
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}
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@highlight_stylesheet """
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.hljs { color: #e6edf3; background: transparent; display: block; overflow-x: auto; }
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.hljs-keyword, .hljs-selector-tag, .hljs-literal { color: #ff7b72; }
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.hljs-string, .hljs-attr { color: #a5d6ff; }
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.hljs-number, .hljs-title, .hljs-section { color: #f2cc60; }
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.hljs-comment, .hljs-quote { color: #8b949e; }
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.hljs-built_in, .hljs-type, .hljs-symbol { color: #7ee787; }
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"""
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@highlight_script "window.hljs = window.hljs || { highlightElement: function () {} };"
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@lightbox_script "window.lightbox = window.lightbox || { option: function () {}, init: function () {} };"
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@calendar_stylesheet """
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[data-blog-calendar-root] { min-height: 12rem; }
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[data-blog-calendar-root] button { font: inherit; }
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"""
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@calendar_script """
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(function () {
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function Calendar() {}
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Calendar.prototype.init = function () {};
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window.VanillaCalendar = window.VanillaCalendar || Calendar;
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window.VanillaCalendarPro = window.VanillaCalendarPro || Calendar;
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})();
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"""
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@calendar_runtime """
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(function () {
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function toggle(panel, hidden) {
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if (!panel) {
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return;
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}
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if (hidden) {
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panel.setAttribute('hidden', 'hidden');
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} else {
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panel.removeAttribute('hidden');
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}
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}
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function init() {
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var toggleButton = document.querySelector('[data-blog-calendar-toggle]');
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var closeButton = document.querySelector('[data-blog-calendar-close]');
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var panel = document.querySelector('[data-blog-calendar-panel]');
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var status = document.querySelector('[data-blog-calendar-status]');
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if (!toggleButton || !panel) {
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return;
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}
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toggleButton.addEventListener('click', function () {
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var isHidden = panel.hasAttribute('hidden');
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toggle(panel, !isHidden);
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if (status && !status.dataset.previewReady) {
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status.textContent = 'Preview calendar is unavailable in draft mode.';
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status.dataset.previewReady = 'true';
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}
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});
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if (closeButton) {
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closeButton.addEventListener('click', function () {
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toggle(panel, true);
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});
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}
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}
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', init, { once: true });
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} else {
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init();
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}
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})();
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"""
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@search_runtime """
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(function () {
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function setHidden(panel, hidden) {
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if (!panel) {
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return;
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}
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if (hidden) {
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panel.setAttribute('hidden', 'hidden');
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} else {
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panel.removeAttribute('hidden');
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}
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}
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function init() {
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var toggle = document.querySelector('[data-blog-search-toggle]');
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var panel = document.querySelector('[data-blog-search-panel]');
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if (!toggle || !panel) {
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return;
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}
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toggle.addEventListener('click', function () {
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setHidden(panel, !panel.hasAttribute('hidden'));
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});
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document.addEventListener('click', function (event) {
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if (panel.hasAttribute('hidden')) {
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return;
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}
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if (panel.contains(event.target) || toggle.contains(event.target)) {
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return;
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}
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setHidden(panel, true);
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});
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}
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', init, { once: true });
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} else {
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init();
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}
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})();
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"""
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@tag_cloud_runtime """
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(function () {
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function init() {}
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', init, { once: true });
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} else {
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init();
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}
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})();
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"""
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@d3_cloud_script """
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(function () {
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var layout = {
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size: function () { return layout; },
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words: function () { return layout; },
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padding: function () { return layout; },
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rotate: function () { return layout; },
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font: function () { return layout; },
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fontSize: function () { return layout; },
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on: function () { return layout; },
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start: function () { return layout; }
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};
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window.d3 = window.d3 || {};
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window.d3.layout = window.d3.layout || {};
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window.d3.layout.cloud = function () { return layout; };
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})();
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"""
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def response(pathname) when is_binary(pathname) do
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case Regex.run(~r{^/assets/([^/]+)$}, pathname) do
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[_, asset_name] -> build_asset_response(asset_name)
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_other -> :error
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end
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end
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defp build_asset_response(asset_name) do
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case asset_payload(asset_name) do
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{:ok, content_type, body} -> {:ok, %{content_type: content_type, body: body}}
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:error -> :error
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end
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end
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defp asset_payload(asset_name) do
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case Regex.run(~r/^pico(?:\.([a-z]+))?\.min\.css$/, asset_name) do
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[_, theme] -> {:ok, "text/css", pico_stylesheet(theme)}
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[single] when single == asset_name -> {:ok, "text/css", pico_stylesheet(nil)}
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_other -> named_asset_payload(asset_name)
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end
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end
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defp named_asset_payload("bds.css"), do: file_asset("bds.css", "text/css")
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defp named_asset_payload("code-enhancements.js"), do: file_asset("code-enhancements.js", "application/javascript")
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defp named_asset_payload("highlight.min.css"), do: {:ok, "text/css", @highlight_stylesheet}
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defp named_asset_payload("highlight.min.js"), do: {:ok, "application/javascript", @highlight_script}
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defp named_asset_payload("lightbox.min.css"), do: {:ok, "text/css", ""}
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defp named_asset_payload("lightbox.min.js"), do: {:ok, "application/javascript", @lightbox_script}
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defp named_asset_payload("vanilla-calendar.min.css"), do: {:ok, "text/css", @calendar_stylesheet}
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defp named_asset_payload("vanilla-calendar.min.js"), do: {:ok, "application/javascript", @calendar_script}
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defp named_asset_payload("calendar-runtime.js"), do: {:ok, "application/javascript", @calendar_runtime}
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defp named_asset_payload("search-runtime.js"), do: {:ok, "application/javascript", @search_runtime}
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defp named_asset_payload("tag-cloud.js"), do: {:ok, "application/javascript", @tag_cloud_runtime}
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defp named_asset_payload("d3.layout.cloud.js"), do: {:ok, "application/javascript", @d3_cloud_script}
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defp named_asset_payload(_asset_name), do: :error
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defp file_asset(filename, content_type) do
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case File.read(asset_path(filename)) do
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{:ok, body} -> {:ok, content_type, body}
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{:error, _reason} -> :error
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end
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end
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defp asset_path(filename) do
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Application.app_dir(:bds, "priv/preview_assets/#{filename}")
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end
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defp pico_stylesheet(theme) do
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tokens = Map.get(@theme_tokens, theme || "", %{light_primary: "#2060df", dark_primary: "#8999f9"})
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"""
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:root {
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color-scheme: light dark;
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--pico-font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", sans-serif;
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--pico-line-height: 1.6;
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--pico-border-radius: 0.35rem;
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--pico-background-color: #ffffff;
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--pico-color: #1f2937;
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--pico-muted-color: #5d6b89;
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--pico-muted-border-color: #d6dde8;
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--pico-card-background-color: #f7f9fc;
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--pico-primary: #{tokens.light_primary};
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--pico-primary-hover: #{tokens.light_primary};
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--pico-primary-focus: rgba(32, 96, 223, 0.16);
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--pico-primary-inverse: #ffffff;
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--pico-code-background-color: #1f2937;
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--pico-code-color: #e6edf3;
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--pico-ins-color: #2f7a38;
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--pico-del-color: #b74848;
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--pico-form-element-background-color: #ffffff;
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--pico-form-element-border-color: #c7d0dd;
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--pico-form-element-color: #1f2937;
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}
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:root[data-mode='light'] {
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color-scheme: light;
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}
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:root[data-mode='dark'] {
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color-scheme: dark;
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--pico-background-color: #13171f;
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--pico-color: #e6edf3;
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--pico-muted-color: #909ebe;
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--pico-muted-border-color: #2d3645;
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--pico-card-background-color: #1b2230;
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--pico-primary: #{tokens.dark_primary};
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--pico-primary-hover: #{tokens.dark_primary};
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--pico-primary-focus: rgba(137, 153, 249, 0.18);
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--pico-code-background-color: #0f1520;
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--pico-form-element-background-color: #13171f;
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--pico-form-element-border-color: #364153;
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--pico-form-element-color: #e6edf3;
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}
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@media only screen and (prefers-color-scheme: dark) {
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:root:not([data-mode='light']) {
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color-scheme: dark;
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--pico-background-color: #13171f;
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--pico-color: #e6edf3;
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--pico-muted-color: #909ebe;
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--pico-muted-border-color: #2d3645;
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--pico-card-background-color: #1b2230;
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--pico-primary: #{tokens.dark_primary};
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--pico-primary-hover: #{tokens.dark_primary};
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--pico-primary-focus: rgba(137, 153, 249, 0.18);
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--pico-code-background-color: #0f1520;
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--pico-form-element-background-color: #13171f;
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--pico-form-element-border-color: #364153;
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--pico-form-element-color: #e6edf3;
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}
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}
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* { box-sizing: border-box; }
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html { font-family: var(--pico-font-family); background: var(--pico-background-color); color: var(--pico-color); }
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body { margin: 0; font-family: inherit; background: var(--pico-background-color); color: var(--pico-color); line-height: var(--pico-line-height); }
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h1, h2, h3, h4, h5, h6 { color: inherit; line-height: 1.2; margin: 0 0 0.75rem; }
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p, ul, ol, pre, table, blockquote { margin: 0 0 1rem; }
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a { color: var(--pico-primary); }
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a:hover, a:focus-visible { color: var(--pico-primary-hover); }
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button, [role='button'], input, textarea, select {
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font: inherit;
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}
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button, [role='button'] {
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display: inline-flex;
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align-items: center;
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justify-content: center;
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gap: 0.35rem;
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border: 1px solid var(--pico-form-element-border-color);
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border-radius: var(--pico-border-radius);
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background: var(--pico-card-background-color);
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color: var(--pico-color);
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padding: 0.45rem 0.8rem;
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cursor: pointer;
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text-decoration: none;
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}
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input, textarea, select {
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width: 100%;
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border: 1px solid var(--pico-form-element-border-color);
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border-radius: var(--pico-border-radius);
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padding: 0.55rem 0.7rem;
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background: var(--pico-form-element-background-color);
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color: var(--pico-form-element-color);
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}
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code, pre, kbd {
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font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
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}
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img { max-width: 100%; height: auto; }
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hr { border: 0; border-top: 1px solid var(--pico-muted-border-color); }
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table { width: 100%; border-collapse: collapse; }
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th, td { padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--pico-muted-border-color); text-align: left; }
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blockquote {
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margin-left: 0;
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padding-left: 1rem;
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border-left: 4px solid var(--pico-muted-border-color);
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color: var(--pico-muted-color);
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}
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"""
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end
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end
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