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km-card-layout-core

v0.1.24

Published

Shared render helpers for CardMaster layout JSON (binding resolution, layout normalization).

Downloads

2,023

Readme

km-card-layout-core

纯函数渲染核心:负责将布局 JSON 与数据合成渲染树,处理绑定路径、样式单位(px/rpx)等。

API

  • normalizeLayout(layout):清洗/容错布局对象或 JSON 字符串,补齐默认尺寸/children。
  • buildRenderResult(layout, data, unit?):返回 { renderTree, cardStyle, backgroundImage, backgroundStyle },可直接用于 PC/Vue、小程序等多端。
  • buildRenderNodes(children, data, unit?, context?):仅展开 children 为渲染节点列表。
  • 其他工具:resolveBindingValue(绑定读取,支持 $item. 与 dataPath 上下文)、styleObjectToStringaddUnit

适用场景

  • PC 端:在 Vue 组件里调用 buildRenderResult,把 renderTree 映射为 VDOM。
  • 小程序:被 km-card-layout-component-miniprogram 依赖,组件中通过 core 得到 renderTree。
  • 预渲染/快照:Node 环境按相同逻辑生成渲染树后做静态输出或图片化。

核心不依赖 DOM/平台 API,可直接通过 require('km-card-layout-core') 使用。