src/components/NoteCard.tsx

@@ -1,4 +1,4 @@
-import { signal, useRef } from "kaioken"
+import { signal, useCallback, useEffect, useRef } from "kaioken"
 import { NotesSigal, focusedItem } from "../signals"
 import { useDebounce } from "../utils/useDebounce"
 import notes, { NoteCardType } from "../signals/notes"
@@ -10,6 +10,7 @@ import { Divider } from "./Divider"
 import { ExportIcon } from "./icons/ExportIcon"
 import { createFileAndExport } from "../utils/createFileAndExport"
 import { ContextMenuPortal } from "./ContextMenuPortal"
+import { HelpIcon } from "./icons/HelpIcon"
 
 namespace NoteCard {
   export interface NoteCardProps {
@@ -28,6 +29,7 @@ export function NoteCard({ key: itemKey, data: item }: NoteCard.NoteCardProps) {
   const initialResizeX = useRef(0)
   const initialResizeY = useRef(0)
   const openContextMenu = signal(false)
+  const showHelp = signal(false)
 
   const { debounce } = useDebounce()
 
@@ -111,10 +113,14 @@ export function NoteCard({ key: itemKey, data: item }: NoteCard.NoteCardProps) {
     focusedItem.value = itemKey
   }
 
-  function _handleExportClick(_e: MouseEvent) {
+  function _exportFile() {
     createFileAndExport("Note", item.contents, "text/markdown")
   }
 
+  function _handleExportClick(_e: MouseEvent) {
+    _exportFile()
+  }
+
   function _handleMouseClick(e: MouseEvent) {
     e.preventDefault()
     openContextMenu.value = !openContextMenu.value
@@ -124,6 +130,49 @@ export function NoteCard({ key: itemKey, data: item }: NoteCard.NoteCardProps) {
     openContextMenu.value = false
   }
 
+  function _handleHelpHover() {
+    if (showHelp.value) return
+    showHelp.value = true
+  }
+
+  function _handleHelpOut() {
+    if (!showHelp.value) return
+    showHelp.value = false
+  }
+
+  const _handleKeyDown = useCallback((e: KeyboardEvent) => {
+    if (!e.ctrlKey) return
+
+    // TODO: add support for other os
+    // TODO: add modal popup 
+
+    switch (e.key) {
+      case 'Delete':
+        e.preventDefault()
+        _handleClose(e)
+        break
+      case 'Backspace':
+        e.preventDefault()
+        _handleClose(e)
+        break
+      case 'e':
+        e.preventDefault()
+        _exportFile()
+        break
+      default:
+        break
+    }
+  }, [itemKey, item.position, NotesSigal.default])
+
+  useEffect(() => {
+    if (focusedItem.value !== itemKey) return
+    window.addEventListener('keydown', _handleKeyDown)
+    return () => {
+      window.removeEventListener('keydown', _handleKeyDown)
+    }
+
+  }, [focusedItem.value, itemKey])
+
   const cardPositionStyle = {
     zIndex: `${focusedItem.value == itemKey ? LayerEnum.CARD_ELEVATED : LayerEnum.CARD}`,
     width: `${item.dimensions.w}px`,
@@ -137,6 +186,7 @@ export function NoteCard({ key: itemKey, data: item }: NoteCard.NoteCardProps) {
   }
 
   return (
+    <>
       <div
         oncontextmenu={_handleMouseClick}
         onmousedown={_handleFocusCard}
@@ -146,8 +196,11 @@ export function NoteCard({ key: itemKey, data: item }: NoteCard.NoteCardProps) {
         <div className="overflow-hidden flex-1 flex flex-col gap-1">
           {/* Header Bar */}
           <div className="px-2 flex justify-between items-center cursor-move" onmousedown={_handleMouseDown}>
+            <div className={"flex gap-1 items-center"}>
+              <HelpIcon onMouseOver={_handleHelpHover} onMouseOut={_handleHelpOut} />
+              {/* Save indicator*/}
               <div style={saveIndicatorStyle} className="rounded-full w-1 h-1 dark:bg-white bg-green-500"></div>
-
+            </div>
             <div className="flex gap-2">
               <div
                 onclick={_handleExportClick}
@@ -199,6 +252,23 @@ export function NoteCard({ key: itemKey, data: item }: NoteCard.NoteCardProps) {
         </ContextMenuPortal>
       </div >
 
+      {/* HOTKEY PAPER */}
+      {showHelp.value &&
+        <div
+          className={"text-white absolute bg-[#1c1c1c] rounded-md p-1 z-[1000] border border-blue-500"}
+          style={{
+            top: `${item.position.y}px`,
+            left: `${item.position.x - 120}px`
+          }}
+        >
+          <div className="flex flex-col text-sm dark:text-[#999] text-black">
+            <small>ctrl + del = delete</small>
+            <small>ctrl + back = delete</small>
+            <small>ctrl + e = export</small>
+          </div>
+        </div>
+      }
+    </>
   )
 }
 
@@ -228,3 +298,4 @@ function ExpandIcon({ cb }: {
   )
 }
 
+

src/components/icons/HelpIcon.tsx

@@ -0,0 +1,35 @@
+namespace HelpIcon {
+  export interface Props {
+    onMouseOver?: () => void
+    onMouseOut?: () => void
+  }
+}
+export function HelpIcon({ onMouseOver, onMouseOut }: HelpIcon.Props) {
+
+  return (
+    <svg
+      onmouseout={onMouseOut}
+      onmouseover={onMouseOver}
+      xmlns="http://www.w3.org/2000/svg"
+      width="24"
+      height="24"
+      viewBox="0 0 24 24"
+      fill="none"
+      stroke="currentColor"
+      stroke-width="2"
+      stroke-linecap="round"
+      stroke-linejoin="round"
+      className="w-4 h-4 hover:text-blue-500 cursor-pointer"
+    >
+      <circle
+        cx="12"
+        cy="12"
+        r="10"
+      />
+      <path
+        d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3" />
+      <path
+        d="M12 17h.01"
+      />
+    </svg>)
+}