rayrayzayzay

let mode: "idle" | "dragging" = "idle"
const dragHandler: InteractionHandler = {
  onDragStart(gesture, app) {
    if (intersection(gesture.elementsUnderCursor, app.selectedElements).size) {
      mode = "dragging";
    }
  },

  onPointerMove(gesture) {
		// ignore pointer-moves when we haven't started dragging

rayrayzayzay

if (isScreenshot) return;
if (!isEditor) return;
if (isOnMap(event)) return;
if (sidebarState.displayedItem !== "comments") return;
if (hasDragged.check(event)) return;
if (currentTool !== "NONE") return;
if (isPanning) return;
if (isZooming) return;
if (event.shiftKey) return;

rayrayzayzay

<MapPosition>
  <DragBox>
    <SVGPolygon
      path={pathFromCoordinates(
        element.coords,
        viewport
      )} />
  </DragBox>
  <SelectionFrame
    polygon={selectionFramePolygon(element.coords, viewport)} />

rayrayzayzay

const cache = new WeakMap<ElementCoords, Path2D>()
function getCachedPath(element) {
  const fromCache = cache.get(element.coords)
  if (fromCache) return fromCache;

  const path = calculatePath(element.coords);
  cache.set(element.coords, path);
  return path;
}

rayrayzayzay

function getFullRouteGeometry(coords, viewport) {
  const roundedZoom = Math.round(viewport.zoom)
  const fromCache = cache.get(roundedZoom).get(coords)
  if (fromCache) return clipToViewport(fromCache, viewport);

  const simplified = simplify(coords, 1 / roundedZoom)
  cache.get(roundedZoom).set(coords, simplified);

  return clipToViewport(simplified, viewport);
}

rayrayzayzay

const MIN_FONT_SIZE = 24;
function drawTextElement(ctx, text, fontSize) {
  const scale = fontSize / MIN_FONT_SIZE;
  if (scale <= 1) {
    ctx.scale(scale, scale)
    ctx.drawImage(getTexture(text), 0, 0);
  } else {
    drawText(ctx, text, fontSize)
  }
}

rayrayzayzay

<MapPosition>
  <DragBox>
    <SVGLine
      path={pathFromCoordinates(
        element.coords,
        viewport
      )} />
  </DragBox>
  <SelectionFrame
    polygon={selectionFramePolygon(element.coords, viewport)} />

rayrayzayzay

children = [
  MyApp.Repo,
  MyAppWeb.Telemetry,
  {Phoenix.PubSub, name: MyApp.PubSub},
  MyAppWeb.Endpoint,
  MyApp.PresenceDrainer # <-- NEW!
]

rayrayzayzay

defmodule MyApp.PresenceDrainer do
  use GenServer
  require Logger

  def start_link(opts \\\\ []) do
    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
  end

  @impl GenServer
  def init(_init_arg) do

rayrayzayzay

defmodule MyApp.GracefulShutdownHandler do
  use GenServer
  require Logger

  def start_link(opts \\\\ []) do
    GenServer.start_link(__MODULE__, opts, name: __MODULE__)
  end

  @impl GenServer
  def init(_init_arg) do