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src/ui/App.vue

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+<template>
+  <n-config-provider
+    :config-provider-props="configProviderProps"
+    class="pos-relative w-screen h-vh"
+  >
+    <div class="desktop-root" @contextmenu="onContextMenu">
+      <div class="desktop-bg">
+        <DesktopContainer/>
+      </div>
+      <div class="task-bar">
+        <div id="taskbar" class="w-[80px] h-full flex justify-center items-center bg-blue">
+          测试
+        </div>
+      </div>
+    </div>
+  </n-config-provider>
+</template>
+
+<script setup lang="ts">
+import { configProviderProps } from '@/core/common/naive-ui/theme.ts'
+import DesktopContainer from '@/ui/desktop-container/DesktopContainer.vue'
+
+const onContextMenu = (e: MouseEvent) => {
+  e.preventDefault()
+  e.stopPropagation()
+  console.log(e)
+}
+</script>
+
+<style lang="scss" scoped>
+$taskBarHeight: 40px;
+.desktop-root {
+  @apply w-full h-full flex flex-col;
+
+  .desktop-bg {
+    @apply w-full h-full flex-1 p-2 pos-relative;
+    background-image: url('imgs/desktop-bg-2.jpeg');
+    background-repeat: no-repeat;
+    background-size: cover;
+    height: calc(100% - #{$taskBarHeight});
+  }
+
+  .desktop-icons-container {
+    @apply w-full h-full flex-1 grid grid-auto-flow-col pos-relative;
+  }
+
+  .task-bar {
+    @apply w-full bg-gray-200 flex justify-center items-center;
+    height: $taskBarHeight;
+    flex-shrink: 0;
+  }
+}
+</style>

src/ui/desktop-container/AppIcon.vue

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+<template>
+  <div
+    class="icon-container"
+    :style="`grid-column: ${iconInfo.x}/${iconInfo.x + 1};grid-row: ${iconInfo.y}/${iconInfo.y + 1};`"
+    draggable="true"
+    @dragstart="onDragStart"
+    @dragend="onDragEnd"
+  >
+    {{ iconInfo.name }}
+  </div>
+</template>
+
+<script setup lang="ts">
+import type { IDesktopAppIcon } from '@/ui/types/IDesktopAppIcon.ts'
+import type { IGridTemplateParams } from '@/ui/types/IGridTemplateParams.ts'
+
+const { iconInfo, gridTemplate } = defineProps<{ iconInfo: IDesktopAppIcon, gridTemplate: IGridTemplateParams }>()
+
+const onDragStart = (e: DragEvent) => {}
+
+const onDragEnd = (e: DragEvent) => {
+  const el = e.target as HTMLElement | null
+  if (!el) return
+  // 鼠标所在位置已存在图标元素
+  const pointTarget = document.elementFromPoint(e.clientX, e.clientY)
+  if (!pointTarget) return
+  if (pointTarget.classList.contains('icon-container')) return
+  if (!pointTarget.classList.contains('desktop-icons-container')) return
+
+  // 获取容器边界
+  const rect = el.parentElement!.getBoundingClientRect()
+
+  // 鼠标相对容器左上角坐标
+  const mouseX = e.clientX - rect.left
+  const mouseY = e.clientY - rect.top
+
+  // 计算鼠标所在单元格坐标（向上取整，从1开始）
+  const gridX = Math.ceil(mouseX / gridTemplate.cellRealWidth)
+  const gridY = Math.ceil(mouseY / gridTemplate.cellRealHeight)
+
+  iconInfo.x = gridX
+  iconInfo.y = gridY
+}
+</script>
+
+<style scoped lang="scss">
+.icon-container {
+  width: 100%;
+  height: 100%;
+  @apply flex flex-col items-center justify-center bg-gray-200;
+}
+</style>

src/ui/desktop-container/DesktopContainer.vue

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+<template>
+  <div class="desktop-icons-container" :style="gridStyle">
+    <AppIcon
+      v-for="(appIcon, i) in appIconsRef"
+      :key="i"
+      :iconInfo="appIcon"
+      :gridTemplate="gridTemplate"
+      @dblclick="runApp(appIcon)"
+    />
+  </div>
+</template>
+
+<script setup lang="ts">
+import AppIcon from '@/ui/desktop-container/AppIcon.vue'
+import type { IDesktopAppIcon } from '@/ui/types/IDesktopAppIcon.ts'
+import { useDesktopContainerInit } from '@/ui/desktop-container/useDesktopContainerInit.ts'
+
+const { appIconsRef, gridStyle, gridTemplate } = useDesktopContainerInit('.desktop-icons-container')
+
+const runApp = (appIcon: IDesktopAppIcon) => {}
+</script>
+
+<style scoped></style>

src/ui/desktop-container/useDesktopContainerInit.ts

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+import type { IDesktopAppIcon } from '@/ui/types/IDesktopAppIcon.ts'
+import {
+  computed,
+  onMounted,
+  onUnmounted,
+  reactive,
+  ref,
+  toRaw,
+  toValue,
+  watch,
+} from 'vue'
+import type { IGridTemplateParams } from '@/ui/types/IGridTemplateParams.ts'
+import type { IProcessInfo } from '@/core/process/IProcessInfo.ts'
+
+export function useDesktopContainerInit(containerStr: string) {
+  let container:HTMLElement
+  // 初始值
+  const gridTemplate = reactive<IGridTemplateParams>({
+    cellExpectWidth: 90,
+    cellExpectHeight: 110,
+    cellRealWidth: 90,
+    cellRealHeight: 110,
+    gapX: 4,
+    gapY: 4,
+    colCount: 1,
+    rowCount: 1
+  })
+
+  const gridStyle = computed(() => ({
+    gridTemplateColumns: `repeat(${gridTemplate.colCount}, minmax(${gridTemplate.cellExpectWidth}px, 1fr))`,
+    gridTemplateRows: `repeat(${gridTemplate.rowCount}, minmax(${gridTemplate.cellExpectHeight}px, 1fr))`,
+    gap: `${gridTemplate.gapX}px ${gridTemplate.gapY}px`
+  }))
+
+  const ro = new ResizeObserver(entries => {
+    const containerRect = container.getBoundingClientRect()
+    gridTemplate.colCount = Math.floor((containerRect.width + gridTemplate.gapX) / (gridTemplate.cellExpectWidth + gridTemplate.gapX));
+    gridTemplate.rowCount = Math.floor((containerRect.height + gridTemplate.gapY) / (gridTemplate.cellExpectHeight + gridTemplate.gapY));
+
+    const w = containerRect.width - (gridTemplate.gapX * (gridTemplate.colCount - 1))
+    const h = containerRect.height - (gridTemplate.gapY * (gridTemplate.rowCount - 1))
+    gridTemplate.cellRealWidth = Number((w / gridTemplate.colCount).toFixed(2))
+    gridTemplate.cellRealHeight = Number((h / gridTemplate.rowCount).toFixed(2))
+  })
+
+  onMounted(() => {
+    container = document.querySelector(containerStr)!
+    ro.observe(container)
+  })
+  onUnmounted(() => {
+    ro.unobserve(container)
+    ro.disconnect()
+  })
+
+  // 有桌面图标的app
+  // const appInfos = processManager.processInfos.filter(processInfo => !processInfo.isJustProcess)
+  const appInfos: IProcessInfo[] = []
+  const oldAppIcons: IDesktopAppIcon[] = JSON.parse(localStorage.getItem('desktopAppIconInfo') || '[]')
+  const appIcons: IDesktopAppIcon[] = appInfos.map((processInfo, index) => {
+    const oldAppIcon = oldAppIcons.find(oldAppIcon => oldAppIcon.name === processInfo.name)
+
+    // 左上角坐标原点，从上到下从左到右 索引从1开始
+    const x = index % gridTemplate.rowCount + 1
+    const y = Math.floor(index / gridTemplate.rowCount) + 1
+
+    return {
+      name: processInfo.name,
+      icon: processInfo.icon,
+      path: processInfo.startName,
+      x: oldAppIcon ? oldAppIcon.x : x,
+      y: oldAppIcon ? oldAppIcon.y : y
+    }
+  })
+
+  const appIconsRef = ref(appIcons)
+  const exceedApp = ref<IDesktopAppIcon[]>([])
+
+  watch(() => [gridTemplate.colCount, gridTemplate.rowCount], ([nCols, nRows], [oCols, oRows]) => {
+    // if (oCols == 1 && oRows == 1) return
+    if (oCols === nCols && oRows === nRows)  return
+    const { appIcons, hideAppIcons } = rearrangeIcons(toRaw(appIconsRef.value), nCols, nRows)
+    appIconsRef.value = appIcons
+    exceedApp.value = hideAppIcons
+  })
+
+  watch(() => appIconsRef.value, (appIcons) => {
+    localStorage.setItem('desktopAppIconInfo', JSON.stringify(appIcons))
+  })
+
+  return {
+    gridTemplate,
+    appIconsRef,
+    gridStyle
+  }
+}
+
+/**
+ * 重新安排图标位置
+ * @param appIconInfos 图标信息
+ * @param maxCol 列数
+ * @param maxRow 行数
+ */
+function rearrangeIcons(
+  appIconInfos: IDesktopAppIcon[],
+  maxCol: number,
+  maxRow: number
+): IRearrangeInfo {
+  const occupied = new Set<string>();
+
+  function key(x: number, y: number) {
+    return `${x},${y}`;
+  }
+
+  const appIcons: IDesktopAppIcon[] = []
+  const hideAppIcons: IDesktopAppIcon[] = []
+  const temp: IDesktopAppIcon[] = []
+
+  for (const appIcon of appIconInfos) {
+    const { x, y } = appIcon;
+
+    if (x <= maxCol && y <= maxRow) {
+      if (!occupied.has(key(x, y))) {
+        occupied.add(key(x, y))
+        appIcons.push({ ...appIcon, x, y })
+      }
+    } else {
+      temp.push(appIcon)
+    }
+  }
+
+  const max = maxCol * maxRow
+  for (const appIcon of temp) {
+    if (appIcons.length < max) {
+      // 最后格子也被占 → 从 (1,1) 开始找空位
+      let placed = false;
+      for (let c = 1; c <= maxCol; c++) {
+        for (let r = 1; r <= maxRow; r++) {
+          if (!occupied.has(key(c, r))) {
+            occupied.add(key(c, r));
+            appIcons.push({ ...appIcon, x: c, y: r });
+            placed = true;
+            break;
+          }
+        }
+        if (placed) break;
+      }
+    } else {
+      // 放不下了
+      hideAppIcons.push(appIcon)
+    }
+  }
+
+  return {
+    appIcons,
+    hideAppIcons
+  };
+}
+
+interface IRearrangeInfo {
+  /** 正常的桌面图标信息 */
+  appIcons: IDesktopAppIcon[];
+  /** 隐藏的桌面图标信息(超出屏幕显示的) */
+  hideAppIcons: IDesktopAppIcon[];
+}

src/ui/types/IDesktopAppIcon.ts

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+/**
+ * 桌面应用图标信息
+ */
+export interface IDesktopAppIcon {
+  /** 图标name */
+  name: string;
+  /** 图标 */
+  icon: string;
+  /** 图标路径 */
+  path: string;
+  /** 图标在grid布局中的列 */
+  x: number;
+  /** 图标在grid布局中的行 */
+  y: number;
+}

src/ui/types/IGridTemplateParams.ts

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+/**
+ * 桌面网格模板参数
+ */
+export interface IGridTemplateParams {
+  /** 单元格预设宽度 */
+  readonly cellExpectWidth: number
+  /** 单元格预设高度 */
+  readonly cellExpectHeight: number
+  /** 单元格实际宽度 */
+  cellRealWidth: number
+  /** 单元格实际高度 */
+  cellRealHeight: number
+  /** 列间距 */
+  gapX: number
+  /** 行间距 */
+  gapY: number
+  /** 总列数 */
+  colCount: number
+  /** 总行数 */
+  rowCount: number
+}

src/ui/types/WindowFormTypes.ts

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+/**
+ * 窗体位置坐标 - 左上角
+ */
+export interface WindowFormPos {
+  x: number;
+  y: number;
+}
+
+/** 窗口状态 */
+export type TWindowFormState = 'default' | 'minimized' | 'maximized';