plc-sim/client/node_modules/vuetify/lib/composables/stack.mjs

// Composables
import { useToggleScope } from "./toggleScope.mjs"; // Utilities
import { computed, inject, onScopeDispose, provide, reactive, readonly, shallowRef, toRaw, watchEffect } from 'vue';
import { getCurrentInstance } from "../util/index.mjs"; // Types
const StackSymbol = Symbol.for('vuetify:stack');
const globalStack = reactive([]);
export function useStack(isActive, zIndex, disableGlobalStack) {
  const vm = getCurrentInstance('useStack');
  const createStackEntry = !disableGlobalStack;
  const parent = inject(StackSymbol, undefined);
  const stack = reactive({
    activeChildren: new Set()
  });
  provide(StackSymbol, stack);
  const _zIndex = shallowRef(+zIndex.value);
  useToggleScope(isActive, () => {
    const lastZIndex = globalStack.at(-1)?.[1];
    _zIndex.value = lastZIndex ? lastZIndex + 10 : +zIndex.value;
    if (createStackEntry) {
      globalStack.push([vm.uid, _zIndex.value]);
    }
    parent?.activeChildren.add(vm.uid);
    onScopeDispose(() => {
      if (createStackEntry) {
        const idx = toRaw(globalStack).findIndex(v => v[0] === vm.uid);
        globalStack.splice(idx, 1);
      }
      parent?.activeChildren.delete(vm.uid);
    });
  });
  const globalTop = shallowRef(true);
  if (createStackEntry) {
    watchEffect(() => {
      const _isTop = globalStack.at(-1)?.[0] === vm.uid;
      setTimeout(() => globalTop.value = _isTop);
    });
  }
  const localTop = computed(() => !stack.activeChildren.size);
  return {
    globalTop: readonly(globalTop),
    localTop,
    stackStyles: computed(() => ({
      zIndex: _zIndex.value
    }))
  };
}
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