Hooks

1、useEventListener

使用

<template>
    <button @click="toggleEventListener">事件监听</button>
</template>

<script setup>
import { ref } from 'vue';
import { useEventListener } from 'micro-vue-hooks';

const isEventListenerActive = ref(false);

// 创建事件处理函数
const eventHandler = event => {
    console.log('监听点击事件:', event.target);
};

// 创建事件监听器
const { removeEvent } = useEventListener({
    name: 'click', // 事件名称
    listener: eventHandler // 事件处理函数
});

// 切换事件监听器状态
const toggleEventListener = () => {
    if (isEventListenerActive.value) {
        removeEvent(); // 移除事件监听器
    } else {
        // 重新添加事件监听器
        useEventListener({
            name: 'click',
            listener: eventHandler
        });
    }
    // 切换状态
    isEventListenerActive.value = !isEventListenerActive.value;
};
</script>

2、useLocationQuery

使用

<script setup lang="ts">
import { watchEffect } from 'vue';

import { useLocationQuery } from 'micro-vue-hooks';

const [query, updateQuery] = useLocationQuery({
    keys: ["id", "name"],
    defaults: {
        id: 11,
        name: '哈哈哈'
    }
});

function handleChangeId(event: any) {
    updateQuery({
        id: event.target.value
    })
}

watchEffect(() => {
    console.log(query.value);
})

</script>
<template>
    id <input :defaultValue="query.id" @input="handleChangeId" />
</template>

3、useService

使用

<template>
    <div>数据请求</div>
    <button @click="handleEdit">修改数据</button>
    {{ loading }}
    {{ data }}
</template>

<script lang='ts' setup>
import { reactive } from 'vue';
import { useService } from 'micro-vue-hooks';

 function fun(params) {
    // 构建 URL，将查询参数附加到 URL 上
    const url = new URL('https://mock.mengxuegu.com/mock/61922927f126df7bfd5b79ef/promise/promise3');
    url.search = new URLSearchParams({ ...params, method: 'get' }).toString();

    return new Promise((resolve, reject) =>{
       fetch(url).then(req => {
           return req.json();
       }).then(res => {
           resolve(res);
       }).catch(err => {
           reject(err);
       });
    })
}

let obj = reactive({
    value: 'test'
});

const {
    run,
    data,
    loading
} = useService(fun, obj);

function handleEdit() {
    run({
        value: 'test'
    });
}
</script>

注：

在 uniapp 中使用，需要给类型一层约束，负责会报奇怪的 ts 错误。

// use-service.ts
import type { Ref } from 'vue';
import { toRef } from 'vue';
import type { ServiceFunction, ServiceConfig } from 'micro-vue-hooks';
import { useService as _useService } from 'micro-vue-hooks';

interface IAsyncResult<T, Q> {
  data?: Ref<T | null | undefined>;
  loading: Ref<boolean>;
  error: Ref<string | undefined>;
  run: (arg?: Q) => Promise<T>;
}

export default function useService<T, Q>(
  fetch: ServiceFunction<T, Q>,
  query?: Q,
  initData?: T,
  config?: ServiceConfig
): IAsyncResult<T, Q> {
  const _data = _useService<T, Q>(fetch, query, initData, config);

  return {
    data: toRef(_data, 'data') as Ref<T | undefined>,
    loading: toRef(_data, 'loading') as unknown as Ref<boolean>,
    error: toRef(_data, 'error') as unknown as Ref<string | undefined>,
    run: toRef(_data, 'run') as unknown as (arg?: Q) => Promise<T>
  };
}

注：其余的 hooks 查看 index 中的导出。

4、useWatermark

<template>
    <div>
        <Button type="primary"
                label="创建 Watermark1"
                @click="setWatermark('WaterMark 1')">
        </Button>
        <Button type="primary"
                label="Create custom style Watermark"
                @click="setWatermark2('创建 样式 WaterMark')">
        </Button>

        <Button label="Clear Watermark1"
                @click="clear"></Button>
        
        <Button label="ClearAll"
                @click="clearAll"></Button>

        <Button label="Update Watermark1"
                @click="setWatermark('WaterMark Info New')">
        </Button>
    </div>
</template>
<script lang="ts" setup>
import { onUnmounted, ref } from 'vue';

import { 
    useWatermark,
    Button
} from 'micro-vue-hooks';

const app = ref(document.body);

const { setWatermark, clear, clearAll } = useWatermark();
const { setWatermark: setWatermark2 } = useWatermark(app, {
    fontColor: 'red',
    fontSize: 12,
    rotate: 30
});

// setWatermark3('水印');

onUnmounted(() => {
    clearAll();
});
</script>

5、useState

<template>
    <div>
        {{ state.age }}
        <br />
        <br />
        <button @click="handleClick">
          修改
        </button>
        <br />
        <button @click="handleReductionClick">
          还原
        </button>
    </div>
</template>
<script lang="ts" setup>
import { watch } from 'vue';

import { 
    useState
} from 'micro-vue-hooks';

const [state, setState] = useState({
    age: 1
});

const handleClick = (): void => {
    setState({
        age: 2
    });
};

const handleReductionClick = (): void => {
    setState();
};

watch(() => state.age, (newValue, oldValue) => {
    console.log(newValue, oldValue);
});
</script>

6、useMount

<script lang="tsx" setup>
import {
  ElButton,
  ElMessage
} from "element-plus";

import {
  useMount
} from "micro-vue-hooks";
import Modal from "./op/index.vue";

const dialogMount = useMount();

const handleConfirm = (): void => {
  ElMessage({
    message: "This is a message.",
    type: "info",
    plain: true
  });
};

const handleClick = (): void => {
  dialogMount(Modal, {
    visible: true,
    onClick: handleConfirm
  }, {
    default: <div>测试</div>
  });
};

const handleElClick = (): void => {
  dialogMount("span", undefined, "元素");
};
</script>

<template>
  DemoUseMount
  <br />
  <ElButton @click="handleClick">
    弹出框
  </ElButton>

  <ElButton @click="handleElClick">
    添加元素
  </ElButton>
  <div id="box"></div>
</template>

op/index.vue

<script setup lang="ts">
import {
  watch,
  defineProps,
  ref,
  onMounted,
  defineEmits
} from "vue";
import {
  ElDialog,
  ElButton
} from "element-plus";

const props = defineProps<{
  visible?: boolean;
}>();

const dialogVisible = ref<boolean>(props.visible);

watch(() => props.visible, newV => {
  dialogVisible.value = newV;
});

const handleClose = (): void => {
  dialogVisible.value = false;
};

const num = ref(1);

onMounted(() => {
  num.value = 2;
});

const emits = defineEmits(["click"]);

const handleClick = (): void => {
  emits("click");

  dialogVisible.value = false;
};
</script>
<template>
  <ElDialog
    v-model="dialogVisible"
    destroy-on-close
    title="批量修改需求"
    :before-close="handleClose"
  >
    <slot>
      <span @click="() => num++">
        This is a message {{ num }}
      </span>
    </slot>

    <template #footer>
      <div class="dialog-footer">
        <el-button @click="handleClose">
          Cancel
        </el-button>
        <el-button
          type="primary"
          @click="handleClick"
        >
          Confirm
        </el-button>
      </div>
    </template>
  </ElDialog>
</template>
<style scoped></style>