fix: Install new app will start from first page to fill.

[wjyrich]

as title

PMS-BUG-317475

Summary by Sourcery

Bug Fixes:

• Place newly added items on the first page that has room, falling back to appending a new page when all are full.

[deepin-ci-robot]

deepin pr auto review

代码审查意见：

1. 代码注释：在新增的代码块中，添加了注释来解释代码的功能，这是一个好的做法。但是，注释应该更加详细，特别是对于复杂的逻辑，例如“Find first available page with space”和“Add to first available page with space”。

2. 变量命名：变量targetPage和targetIndex的命名清晰，有助于理解其用途。但是，如果这些变量只在当前函数中使用，可以考虑使用更具描述性的命名，以减少代码阅读者的困惑。

3. 逻辑清晰度：新增的代码逻辑清晰，通过遍历所有页面来找到第一个有空余空间的页面，然后将项目插入到该页面。这是一个合理的解决方案。

4. 性能考虑：在遍历所有页面以找到第一个有空余空间的页面时，可能会影响性能，特别是当页面数量较多时。如果这是一个性能瓶颈，可以考虑优化算法，例如使用二分查找或维护一个有序的数据结构来快速定位有空余空间的页面。

5. 错误处理：代码中没有处理m_topLevel->insertItem或m_topLevel->appendItem可能抛出的异常。如果这些操作失败，应该有相应的错误处理机制。

6. 代码重复：如果m_topLevel->appendItem和m_topLevel->insertItem在代码库的其他地方也有使用，可以考虑将它们封装成一个函数，以减少代码重复。

7. 代码风格：代码风格保持一致，例如注释的格式和代码缩进。但是，如果整个项目中有其他代码风格，应该保持一致。

8. 边界条件：代码中没有处理m_topLevel->pageCount()返回0的情况。如果m_topLevel没有任何页面，那么targetPage和targetIndex的值将不会正确设置，可能会导致后续代码出错。应该添加对m_topLevel->pageCount()返回0的检查。

综上所述，代码逻辑清晰，但有一些地方可以改进，以提高代码的可读性、性能和健壮性。

[sourcery-ai]

Reviewer's Guide

Replaces the direct append approach with logic that finds the first page with available space and inserts new items there, falling back to appending a new page only if all existing pages are full.

File-Level Changes

Change	Details	Files
Introduce logic to place new items on the first non-full page	Declare targetPage and targetIndex to track insertion position Iterate through pages to find one with itemCount < maxItemCountPerPage Set targetPage and targetIndex when space is found	src/models/itemarrangementproxymodel.cpp
Conditional insertion or appending based on page capacity	Insert item at (targetPage, targetIndex) if space exists Append item to a new page if all pages are full	src/models/itemarrangementproxymodel.cpp

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[sourcery-ai]

Hey @wjyrich - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: 18202781743, wjyrich

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• debian/deepin/OWNERS

Approvers can indicate their approval by writing /approve in a comment
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[wjyrich]

/forcemerge

[deepin-bot]

This pr force merged! (status: blocked)