Canvas: build application infrastructure with drag and drop
Change-Id: I5cfd12e67794f3376c5c025af29470d52d77cf16
diff --git a/apps/canvas/src/hooks/use-mobile.tsx b/apps/canvas/src/hooks/use-mobile.tsx
new file mode 100644
index 0000000..2b0fe1d
--- /dev/null
+++ b/apps/canvas/src/hooks/use-mobile.tsx
@@ -0,0 +1,19 @@
+import * as React from "react"
+
+const MOBILE_BREAKPOINT = 768
+
+export function useIsMobile() {
+ const [isMobile, setIsMobile] = React.useState<boolean | undefined>(undefined)
+
+ React.useEffect(() => {
+ const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`)
+ const onChange = () => {
+ setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
+ }
+ mql.addEventListener("change", onChange)
+ setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
+ return () => mql.removeEventListener("change", onChange)
+ }, [])
+
+ return !!isMobile
+}
diff --git a/apps/canvas/src/hooks/use-toast.ts b/apps/canvas/src/hooks/use-toast.ts
new file mode 100644
index 0000000..02e111d
--- /dev/null
+++ b/apps/canvas/src/hooks/use-toast.ts
@@ -0,0 +1,194 @@
+"use client"
+
+// Inspired by react-hot-toast library
+import * as React from "react"
+
+import type {
+ ToastActionElement,
+ ToastProps,
+} from "@/components/ui/toast"
+
+const TOAST_LIMIT = 1
+const TOAST_REMOVE_DELAY = 1000000
+
+type ToasterToast = ToastProps & {
+ id: string
+ title?: React.ReactNode
+ description?: React.ReactNode
+ action?: ToastActionElement
+}
+
+const actionTypes = {
+ ADD_TOAST: "ADD_TOAST",
+ UPDATE_TOAST: "UPDATE_TOAST",
+ DISMISS_TOAST: "DISMISS_TOAST",
+ REMOVE_TOAST: "REMOVE_TOAST",
+} as const
+
+let count = 0
+
+function genId() {
+ count = (count + 1) % Number.MAX_SAFE_INTEGER
+ return count.toString()
+}
+
+type ActionType = typeof actionTypes
+
+type Action =
+ | {
+ type: ActionType["ADD_TOAST"]
+ toast: ToasterToast
+ }
+ | {
+ type: ActionType["UPDATE_TOAST"]
+ toast: Partial<ToasterToast>
+ }
+ | {
+ type: ActionType["DISMISS_TOAST"]
+ toastId?: ToasterToast["id"]
+ }
+ | {
+ type: ActionType["REMOVE_TOAST"]
+ toastId?: ToasterToast["id"]
+ }
+
+interface State {
+ toasts: ToasterToast[]
+}
+
+const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>()
+
+const addToRemoveQueue = (toastId: string) => {
+ if (toastTimeouts.has(toastId)) {
+ return
+ }
+
+ const timeout = setTimeout(() => {
+ toastTimeouts.delete(toastId)
+ dispatch({
+ type: "REMOVE_TOAST",
+ toastId: toastId,
+ })
+ }, TOAST_REMOVE_DELAY)
+
+ toastTimeouts.set(toastId, timeout)
+}
+
+export const reducer = (state: State, action: Action): State => {
+ switch (action.type) {
+ case "ADD_TOAST":
+ return {
+ ...state,
+ toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT),
+ }
+
+ case "UPDATE_TOAST":
+ return {
+ ...state,
+ toasts: state.toasts.map((t) =>
+ t.id === action.toast.id ? { ...t, ...action.toast } : t
+ ),
+ }
+
+ case "DISMISS_TOAST": {
+ const { toastId } = action
+
+ // ! Side effects ! - This could be extracted into a dismissToast() action,
+ // but I'll keep it here for simplicity
+ if (toastId) {
+ addToRemoveQueue(toastId)
+ } else {
+ state.toasts.forEach((toast) => {
+ addToRemoveQueue(toast.id)
+ })
+ }
+
+ return {
+ ...state,
+ toasts: state.toasts.map((t) =>
+ t.id === toastId || toastId === undefined
+ ? {
+ ...t,
+ open: false,
+ }
+ : t
+ ),
+ }
+ }
+ case "REMOVE_TOAST":
+ if (action.toastId === undefined) {
+ return {
+ ...state,
+ toasts: [],
+ }
+ }
+ return {
+ ...state,
+ toasts: state.toasts.filter((t) => t.id !== action.toastId),
+ }
+ }
+}
+
+const listeners: Array<(state: State) => void> = []
+
+let memoryState: State = { toasts: [] }
+
+function dispatch(action: Action) {
+ memoryState = reducer(memoryState, action)
+ listeners.forEach((listener) => {
+ listener(memoryState)
+ })
+}
+
+type Toast = Omit<ToasterToast, "id">
+
+function toast({ ...props }: Toast) {
+ const id = genId()
+
+ const update = (props: ToasterToast) =>
+ dispatch({
+ type: "UPDATE_TOAST",
+ toast: { ...props, id },
+ })
+ const dismiss = () => dispatch({ type: "DISMISS_TOAST", toastId: id })
+
+ dispatch({
+ type: "ADD_TOAST",
+ toast: {
+ ...props,
+ id,
+ open: true,
+ onOpenChange: (open) => {
+ if (!open) dismiss()
+ },
+ },
+ })
+
+ return {
+ id: id,
+ dismiss,
+ update,
+ }
+}
+
+function useToast() {
+ const [state, setState] = React.useState<State>(memoryState)
+
+ React.useEffect(() => {
+ listeners.push(setState)
+ return () => {
+ const index = listeners.indexOf(setState)
+ if (index > -1) {
+ listeners.splice(index, 1)
+ }
+ }
+ }, [state])
+
+ return {
+ ...state,
+ toast,
+ dismiss: (toastId?: string) => dispatch({ type: "DISMISS_TOAST", toastId }),
+ }
+}
+
+export { useToast, toast }