From e25d5fa5662349e78aba27447c5da0662f172498 Mon Sep 17 00:00:00 2001
From: Neko Ayaka <neko@ayaka.moe>
Date: Sat, 18 Oct 2025 23:38:32 +0800
Subject: [PATCH] feat(stage-tamagotchi): added electron displays devtools

---
 .../pages/devtools/electron-display.vue       | 161 ++++++++++++++++++
 .../pages/settings/system/developer.vue       |   6 +
 2 files changed, 167 insertions(+)
 create mode 100644 apps/stage-tamagotchi/src/renderer/pages/devtools/electron-display.vue

diff --git a/apps/stage-tamagotchi/src/renderer/pages/devtools/electron-display.vue b/apps/stage-tamagotchi/src/renderer/pages/devtools/electron-display.vue
new file mode 100644
index 000000000..89faf132a
--- /dev/null
+++ b/apps/stage-tamagotchi/src/renderer/pages/devtools/electron-display.vue
@@ -0,0 +1,161 @@
+<script setup lang="ts">
+import { defineInvoke } from '@unbird/eventa'
+import { createContext } from '@unbird/eventa/adapters/electron/renderer'
+import { computedAsync, useIntervalFn, useWindowSize } from '@vueuse/core'
+import { computed, ref } from 'vue'
+
+import { electron } from '../../../shared/electron'
+
+const { context: ctx } = createContext(window.electron.ipcRenderer)
+const getAllDisplays = defineInvoke(ctx, electron.screen.getAllDisplays)
+const getCursorScreenPoint = defineInvoke(ctx, electron.screen.getCursorScreenPoint)
+
+const allDisplays = computedAsync(async () => getAllDisplays(), [])
+const cursorPoint = ref({ x: 0, y: 0 })
+
+// Update cursor position periodically
+useIntervalFn(async () => {
+  const newPoint = await getCursorScreenPoint()
+  cursorPoint.value = newPoint
+}, 1000 / 60)
+
+// Get container element and its bounds
+const containerRef = ref<HTMLElement>()
+const windowSize = useWindowSize()
+
+// Calculate bounds for all displays
+const displayBounds = computed(() => {
+  if (!allDisplays.value.length)
+    return { minX: 0, minY: 0, maxX: 0, maxY: 0, width: 0, height: 0 }
+
+  let minX = Infinity
+  let minY = Infinity
+  let maxX = -Infinity
+  let maxY = -Infinity
+
+  for (const display of allDisplays.value) {
+    minX = Math.min(minX, display.bounds.x)
+    minY = Math.min(minY, display.bounds.y)
+    maxX = Math.max(maxX, display.bounds.x + display.bounds.width)
+    maxY = Math.max(maxY, display.bounds.y + display.bounds.height)
+  }
+
+  return {
+    minX,
+    minY,
+    maxX,
+    maxY,
+    width: maxX - minX,
+    height: maxY - minY,
+  }
+})
+
+// Responsive scale factor based on available window/container space
+const scale = computed(() => {
+  const { width: totalWidth, height: totalHeight } = displayBounds.value
+
+  if (totalWidth === 0 || totalHeight === 0)
+    return 0.2
+
+  // Use window size with some padding for responsive scaling
+  const padding = 100
+  const availableWidth = windowSize.width.value - padding
+  const availableHeight = windowSize.height.value - padding
+
+  // Calculate scale to fit within available space
+  const scaleX = availableWidth / totalWidth
+  const scaleY = availableHeight / totalHeight
+
+  // Use the smaller scale to ensure everything fits, with a max scale of 0.3
+  return Math.min(scaleX, scaleY, 0.3)
+})
+
+// Transform display coordinates
+function transformDisplay(display: any) {
+  const { minX, minY } = displayBounds.value
+  return {
+    x: (display.bounds.x - minX) * scale.value,
+    y: (display.bounds.y - minY) * scale.value,
+    width: display.bounds.width * scale.value,
+    height: display.bounds.height * scale.value,
+  }
+}
+
+// Transform cursor coordinates
+const transformedCursor = computed(() => {
+  const { minX, minY } = displayBounds.value
+  return {
+    x: (cursorPoint.value.x - minX) * scale.value,
+    y: (cursorPoint.value.y - minY) * scale.value,
+  }
+})
+
+// Calculate container dimensions
+const containerDimensions = computed(() => {
+  const { width, height } = displayBounds.value
+  return {
+    width: width * scale.value,
+    height: height * scale.value,
+  }
+})
+</script>
+
+<template>
+  <div>
+    <div
+      ref="containerRef"
+      class="relative"
+      :style="{
+        width: `${containerDimensions.width}px`,
+        height: `${containerDimensions.height}px`,
+      }"
+    >
+      <div
+        v-for="display in allDisplays"
+        :key="display.id"
+        class="absolute box-border border-2 border-neutral-200 bg-neutral-50/50 dark:border-neutral-800 dark:bg-neutral-950/50"
+        :style="{
+          left: `${transformDisplay(display).x}px`,
+          top: `${transformDisplay(display).y}px`,
+          width: `${transformDisplay(display).width}px`,
+          height: `${transformDisplay(display).height}px`,
+        }"
+      >
+        <!-- Work area (slightly darker) -->
+        <div
+          class="absolute bg-neutral-200/50 dark:bg-neutral-800/50"
+          :style="{
+            left: `${(display.workArea.x - display.bounds.x) * scale}px`,
+            top: `${(display.workArea.y - display.bounds.y) * scale}px`,
+            width: `${display.workArea.width * scale}px`,
+            height: `${display.workArea.height * scale}px`,
+          }"
+        />
+
+        <div class="pointer-events-none absolute left-2.5 top-2.5 text-xs text-neutral-800 font-medium">
+          {{ display.label }}
+        </div>
+        <div class="pointer-events-none absolute left-2.5 top-7.5 text-[10px] text-neutral-600">
+          {{ display.bounds.width }}x{{ display.bounds.height }} @ {{ display.rotation }}°
+        </div>
+      </div>
+
+      <div
+        class="pointer-events-none absolute h-3 w-3 border-2 border-primary-400 rounded-full bg-primary-400 transition-all duration-150 ease-out -ml-1.5 -mt-1.5"
+        :style="{
+          left: `${transformedCursor.x}px`,
+          top: `${transformedCursor.y}px`,
+        }"
+      >
+        <div class="absolute left-3 whitespace-nowrap text-[11px] text-primary-400 font-bold -top-1.25">
+          {{ cursorPoint.x }}, {{ cursorPoint.y }}
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<route lang="yaml">
+meta:
+  layout: settings
+</route>
diff --git a/apps/stage-tamagotchi/src/renderer/pages/settings/system/developer.vue b/apps/stage-tamagotchi/src/renderer/pages/settings/system/developer.vue
index 872e97be7..868d2b5dc 100644
--- a/apps/stage-tamagotchi/src/renderer/pages/settings/system/developer.vue
+++ b/apps/stage-tamagotchi/src/renderer/pages/settings/system/developer.vue
@@ -24,6 +24,12 @@ const menu = computed(() => [
     icon: 'i-solar:sledgehammer-bold-duotone',
     to: '/devtools/use-window-mouse',
   },
+  {
+    title: 'Displays',
+    description: 'Visualize connected displays and cursor position',
+    icon: 'i-solar:sledgehammer-bold-duotone',
+    to: '/devtools/electron-display',
+  },
 ])
 
 const { context } = createContext(window.electron.ipcRenderer)