mldong-flow-designer-plus
Version:
本项目包含了作者为B站课堂视频[《工作流设计器开发最佳实践》](https://www.bilibili.com/cheese/play/ss24484)的过程源码。教程中开发的组件也可用于实际生产环境中。以下是和使用文档和课程章节说明。 ## 实战项目 [演示地址](https://flow-pro.mldong.com/)
39 lines (38 loc) • 1.5 kB
JavaScript
import { ref, getCurrentInstance, inject, computed, unref } from "vue";
import { j as isNumber, h as isClient, f as debugWarn } from "./install-La2G4dPY.js";
const initial = {
current: 0
};
const zIndex = ref(0);
const defaultInitialZIndex = 2e3;
const ZINDEX_INJECTION_KEY = Symbol("elZIndexContextKey");
const zIndexContextKey = Symbol("zIndexContextKey");
const useZIndex = (zIndexOverrides) => {
const increasingInjection = getCurrentInstance() ? inject(ZINDEX_INJECTION_KEY, initial) : initial;
const zIndexInjection = zIndexOverrides || (getCurrentInstance() ? inject(zIndexContextKey, void 0) : void 0);
const initialZIndex = computed(() => {
const zIndexFromInjection = unref(zIndexInjection);
return isNumber(zIndexFromInjection) ? zIndexFromInjection : defaultInitialZIndex;
});
const currentZIndex = computed(() => initialZIndex.value + zIndex.value);
const nextZIndex = () => {
increasingInjection.current++;
zIndex.value = increasingInjection.current;
return currentZIndex.value;
};
if (!isClient && !inject(ZINDEX_INJECTION_KEY)) {
debugWarn("ZIndexInjection", `Looks like you are using server rendering, you must provide a z-index provider to ensure the hydration process to be succeed
usage: app.provide(ZINDEX_INJECTION_KEY, { current: 0 })`);
}
return {
initialZIndex,
currentZIndex,
nextZIndex
};
};
export {
defaultInitialZIndex as d,
useZIndex as u,
zIndexContextKey as z
};
//# sourceMappingURL=index-CiiJvH0P.js.map