directive.ts
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import type { App, Directive, DirectiveBinding } from 'vue';
import { h, render } from 'vue';
import { VbenLoading, VbenSpinner } from '@vben-core/shadcn-ui';
import { isString } from '@vben-core/shared/utils';
const LOADING_INSTANCE_KEY = Symbol('loading');
const SPINNER_INSTANCE_KEY = Symbol('spinner');
const CLASS_NAME_RELATIVE = 'spinner-parent--relative';
const loadingDirective: Directive = {
mounted(el, binding) {
const instance = h(VbenLoading, getOptions(binding));
render(instance, el);
el.classList.add(CLASS_NAME_RELATIVE);
el[LOADING_INSTANCE_KEY] = instance;
},
unmounted(el) {
const instance = el[LOADING_INSTANCE_KEY];
el.classList.remove(CLASS_NAME_RELATIVE);
render(null, el);
instance.el.remove();
el[LOADING_INSTANCE_KEY] = null;
},
updated(el, binding) {
const instance = el[LOADING_INSTANCE_KEY];
const options = getOptions(binding);
if (options && instance?.component) {
try {
Object.keys(options).forEach((key) => {
instance.component.props[key] = options[key];
});
instance.component.update();
} catch (error) {
console.error(
'Failed to update loading component in directive:',
error,
);
}
}
},
};
function getOptions(binding: DirectiveBinding) {
if (binding.value === undefined) {
return { spinning: true };
} else if (typeof binding.value === 'boolean') {
return { spinning: binding.value };
} else {
return { ...binding.value };
}
}
const spinningDirective: Directive = {
mounted(el, binding) {
const instance = h(VbenSpinner, getOptions(binding));
render(instance, el);
el.classList.add(CLASS_NAME_RELATIVE);
el[SPINNER_INSTANCE_KEY] = instance;
},
unmounted(el) {
const instance = el[SPINNER_INSTANCE_KEY];
el.classList.remove(CLASS_NAME_RELATIVE);
render(null, el);
instance.el.remove();
el[SPINNER_INSTANCE_KEY] = null;
},
updated(el, binding) {
const instance = el[SPINNER_INSTANCE_KEY];
const options = getOptions(binding);
if (options && instance?.component) {
try {
Object.keys(options).forEach((key) => {
instance.component.props[key] = options[key];
});
instance.component.update();
} catch (error) {
console.error(
'Failed to update spinner component in directive:',
error,
);
}
}
},
};
type loadingDirectiveParams = {
/** 是否注册loading指令。如果提供一个string，则将指令注册为指定的名称 */
loading?: boolean | string;
/** 是否注册spinning指令。如果提供一个string，则将指令注册为指定的名称 */
spinning?: boolean | string;
};
/**
* 注册loading指令
* @param app
* @param params
*/
export function registerLoadingDirective(
app: App,
params?: loadingDirectiveParams,
) {
// 注入一个样式供指令使用，确保容器是相对定位
const style = document.createElement('style');
style.id = CLASS_NAME_RELATIVE;
style.innerHTML = `
.${CLASS_NAME_RELATIVE} {
position: relative !important;
}
`;
document.head.append(style);
if (params?.loading !== false) {
app.directive(
isString(params?.loading) ? params.loading : 'loading',
loadingDirective,
);
}
if (params?.spinning !== false) {
app.directive(
isString(params?.spinning) ? params.spinning : 'spinning',
spinningDirective,
);
}
}