# Comet Design Handoff

- Change: weapp-capsule-safearea
- Phase: design
- Mode: compact
- Context hash: aa611532c57837edccdaa3c5221ab2e70b42ac50630cca269c20b0a2dbbd2af3

Generated-by: comet-handoff.sh

OpenSpec remains the canonical capability spec. This handoff is a deterministic, source-traceable context pack, not an agent-authored summary.

## openspec/changes/weapp-capsule-safearea/proposal.md

- Source: openspec/changes/weapp-capsule-safearea/proposal.md
- Lines: 1-30
- SHA256: ff88164caf99258a7df621a84b1c163d9e934971c2b80ea01f6fccedbb6e528c

```md
## Why

微信小程序右上角存在原生胶囊按钮（菜单/关闭），宽度在不同机型下约为 87px。当前项目所有页面均使用 `navigationStyle: custom` 自定义导航栏，并把部分操作按钮（通知、新增、今天等）放在右上角，导致部署到微信真机后胶囊遮挡功能按钮，影响使用。需要引入全局统一的胶囊安全区组件，让顶部栏右侧操作区自动避让胶囊。

## What Changes

- 新增全局胶囊安全区组件 `CapsuleSafeArea`，基于 `uni.getMenuButtonBoundingClientRect()` 计算右侧安全宽度。
- 改造 `TopBar` 组件，右侧插槽自动包裹在安全区内，保证操作按钮不会被胶囊遮挡。
- 调整三个已确认存在遮挡问题的页面顶部区域：
  - `pages/home/home`（各角色首页右上角通知铃铛）
  - `pages/schedule/schedule`（排班页右上角「今天」「新增排班」）
  - `pages/task/task`（任务页右上角「新增/发布」按钮）
- 胶囊安全区采用「右侧操作按钮整体左移」策略，改动最小且保持按钮可点。
- 非微信环境（H5/App）回退到默认右侧间距，避免异常。

## Capabilities

### New Capabilities

- `weapp-capsule-safearea`: 微信小程序胶囊安全区适配，提供全局组件和 TopBar 集成。

### Modified Capabilities

- 无

## Impact

- 受影响的文件：`src/components/common/TopBar.vue`、新增 `src/components/common/CapsuleSafeArea.vue`、`src/pages/home/home.vue`、`src/pages/schedule/schedule.vue`、`src/pages/task/task.vue`。
- 依赖：仅使用 uni-app 内置 API `uni.getMenuButtonBoundingClientRect()` 与 `uni.getSystemInfoSync()`。
- 不涉及后端接口、数据模型、API 变更。
```

## openspec/changes/weapp-capsule-safearea/design.md

- Source: openspec/changes/weapp-capsule-safearea/design.md
- Lines: 1-66
- SHA256: acc12d11b7486d4edaac7949821ba1529b66b165023c1c0897993724dccfe889

```md
## Context

清道夫微信小程序使用 `navigationStyle: custom` 实现自定义导航栏。所有页面顶部的标题、返回按钮、功能按钮（通知、新增、筛选等）都由组件自行渲染。然而微信小程序右上角存在系统胶囊按钮（菜单 + 关闭），在 iPhone 上宽度约 87px、安卓上约 96px，且距离屏幕右侧有一定边距。当前部分页面把操作按钮直接放在右上角，导致真机运行时胶囊遮挡按钮。

已有组件：`StatusBar.vue` 负责状态栏占位，`TopBar.vue` 负责标题栏。两者均未考虑胶囊区域。

## Goals / Non-Goals

**Goals:**
- 提供可在任何页面/组件复用的胶囊安全区方案。
- 改造 `TopBar.vue`，使其右侧插槽内容自动避让胶囊。
- 修复 `pages/home/home`、`pages/schedule/schedule`、`pages/task/task` 的遮挡问题。
- 保持 H5/App 等非微信环境下的正常显示（ graceful fallback）。

**Non-Goals:**
- 不调整底部 tabBar 结构。
- 不改页面整体布局风格。
- 不处理胶囊以外的系统 UI（如灵动岛、底部横条）。

## Decisions

### 1. 新增 `CapsuleSafeArea.vue` 组件
- 通过 `uni.getMenuButtonBoundingClientRect()` 获取胶囊坐标与宽度。
- 通过 `uni.getSystemInfoSync()` 获取屏幕宽度。
- 计算右侧需要避让的最小宽度：`screenWidth - menuButton.left + 8px`（额外 8px 缓冲）。
- 在微信小程序下渲染一个占位 view；在其他平台返回 0 或固定值，避免影响布局。
- 提供 `width` 插槽 prop 或默认 slot，方便 `TopBar` 直接使用。

### 2. `TopBar.vue` 集成安全区
- 右侧 `<slot name="right" />` 外层用 `CapsuleSafeArea` 包裹，使右侧内容左侧平移。
- 保持标题居左或根据左侧内容自适应，不改动标题样式。
- 为避免标题被挤压过窄，标题区使用 `flex-1 min-w-0 truncate`。

### 3. 页面顶部操作按钮统一使用 `TopBar`
- `pages/home/home` 三个首页当前直接在页面内写 header，需把右上角通知铃铛移入 `TopBar` 的 right slot，或给按钮加 `mr-[safeWidth]`。
- `pages/task/task` 的 `TaskListView` 顶部「新增」按钮纳入 `TopBar` right slot。
- `pages/schedule/schedule` 的 `ScheduleView` 顶部「今天」「新增排班」按钮纳入 `TopBar` right slot。

### 4. 策略选择：右侧按钮整体左移
- 对比方案：
  - 按钮换行：改动大，破坏视觉一致性。
  - 右侧留空白：浪费空间且用户看不到原因。
  - 按钮整体左移：改动最小，符合微信小程序主流做法，保留按钮可点击区域。
- 选定「按钮整体左移」。

## Risks / Trade-offs

- **[Risk]** `uni.getMenuButtonBoundingClientRect()` 在小程序初始化后可能异步变化（如旋转屏幕）。
  - **Mitigation:** 在 `onMounted` 获取并监听窗口尺寸变化；如获取失败则使用基于屏幕宽度的默认估算值。
- **[Risk]** 不同机型胶囊尺寸差异大。
  - **Mitigation:** 使用动态 API 获取真实尺寸，而非写死 px。
- **[Risk]** 顶部标题栏空间被压缩，标题可能显示不全。
  - **Mitigation:** 标题使用 `truncate` 截断，并确保左侧返回按钮只在需要时显示。
- **[Trade-off]** H5/App 下无胶囊，安全区宽度为 0，布局与之前一致。

## Migration Plan

- 新增 `CapsuleSafeArea.vue`。
- 修改 `TopBar.vue`，集成安全区。
- 修改三个页面/视图组件，使右上角按钮通过 `TopBar` right slot 渲染。
- 构建 `npm run build:mp-weixin` 验证无编译错误。
- 在微信开发者工具真机调试中检查胶囊未遮挡按钮。

## Open Questions

- 是否需要在每个页面单独处理 `StatusBar + TopBar`，还是统一封装一个 `PageHeader`？本次保持最小改动，只改 `TopBar`。
```

## openspec/changes/weapp-capsule-safearea/tasks.md

- Source: openspec/changes/weapp-capsule-safearea/tasks.md
- Lines: 1-16
- SHA256: 03218da571a4b7615bbf048d47b0b4479114a6ee5485fec873c6b65a84415757

```md
## 1. Core component

- [ ] 1.1 Create `src/components/common/CapsuleSafeArea.vue` to compute and expose capsule safe width.
- [ ] 1.2 Modify `src/components/common/TopBar.vue` to wrap the right slot with `CapsuleSafeArea`.

## 2. Page header fixes

- [ ] 2.1 Update `src/components/home/DispatchHome.vue`, `SalesHome.vue`, `ConstructionHome.vue` to place the notification bell inside `TopBar` right slot.
- [ ] 2.2 Update `src/components/task/TaskListView.vue` to place the add/publish button inside `TopBar` right slot.
- [ ] 2.3 Update `src/components/dispatch/ScheduleView.vue` to place "今天" and "新增排班" buttons inside `TopBar` right slot.

## 3. Validation

- [ ] 3.1 Run `npm run type-check` and fix any TypeScript errors.
- [ ] 3.2 Run `npm run build:mp-weixin` and confirm the build succeeds.
- [ ] 3.3 Commit each completed task with a clear message.
```

## openspec/changes/weapp-capsule-safearea/specs/weapp-capsule-safearea/spec.md

- Source: openspec/changes/weapp-capsule-safearea/specs/weapp-capsule-safearea/spec.md
- Lines: 1-51
- SHA256: 5983ff126f33775ed1825d40ff0fb8f36d74fa8e2e0e8f7d7874f05a2b3719bc

```md
## ADDED Requirements

### Requirement: CapsuleSafeArea component calculates safe margin
The system SHALL provide a `CapsuleSafeArea` component that computes the minimum right-side margin needed to avoid the WeChat mini-program capsule button, and wraps its default slot with that left margin.

#### Scenario: WeChat environment
- **WHEN** the app runs in WeChat mini-program
- **THEN** the component uses `uni.getMenuButtonBoundingClientRect()` and `uni.getSystemInfoSync()` to compute `safeWidth = screenWidth - menuButton.left + 8px`, and applies `margin-left: safeWidth` to the wrapped content

#### Scenario: Non-WeChat environment
- **WHEN** the app runs on H5 or App
- **THEN** the component returns a safe width of `0` so the layout remains unchanged

#### Scenario: API failure fallback
- **WHEN** `uni.getMenuButtonBoundingClientRect()` fails or returns invalid data
- **THEN** the component falls back to a conservative estimate based on `screenWidth` (approximately 28% of screen width) so the layout remains safe on common devices

### Requirement: TopBar right slot is protected by capsule safe area
The system SHALL wrap the `TopBar` right slot inside `CapsuleSafeArea` so any right-side action buttons are shifted left of the capsule automatically. Pages using `TopBar` shall not need to manually add capsule-safe spacing.

#### Scenario: Right slot contains a button
- **WHEN** a page places a button in the `TopBar` right slot
- **THEN** the button is rendered with a left margin equal to the capsule safe width and remains fully clickable

### Requirement: Home page notification bell avoids capsule
The system SHALL ensure the notification bell on `pages/home/home` (all roles) does not overlap the WeChat capsule by rendering the home header with `TopBar` and placing the bell inside the `TopBar` right slot.

#### Scenario: Dispatch home renders notification icon
- **WHEN** `DispatchHome.vue` renders the top-right notification bell
- **THEN** the header uses `TopBar`, the left slot keeps the existing avatar/greeting, and the bell is placed inside the `TopBar` right slot and is not covered by the capsule

### Requirement: Task page add button avoids capsule
The system SHALL ensure the "新增/发布" button on `pages/task/task` does not overlap the WeChat capsule by rendering the task list header with `TopBar` and placing the button inside the `TopBar` right slot.

#### Scenario: TaskListView renders add button
- **WHEN** `TaskListView.vue` renders the top-right add button
- **THEN** the header uses `TopBar` with the page title, and the button is placed inside the `TopBar` right slot and is not covered by the capsule

### Requirement: Schedule page actions avoid capsule
The system SHALL ensure the "今天" and "新增排班" buttons on `pages/schedule/schedule` do not overlap the WeChat capsule by placing both buttons inside the `TopBar` right slot.

#### Scenario: ScheduleView renders top actions
- **WHEN** `ScheduleView.vue` renders the top-right action buttons
- **THEN** both "今天" and "新增排班" buttons are placed inside the `TopBar` right slot and are not covered by the capsule, and the month-switching row below `TopBar` only keeps the month navigation on the left

### Requirement: Build passes and layout remains valid on non-WeChat platforms
The system SHALL keep `npm run build:mp-weixin` and `npm run type-check` passing, and non-WeChat layouts must not regress.

#### Scenario: Build verification
- **WHEN** the project is built for WeChat or type-checked
- **THEN** no TypeScript or template errors are introduced
```

