vue使用screenfull.js实现全屏组件

在vue项目中安装screenfull

npm install --save screenfull

引入 

import screenfull from "screenfull";

点击时判断浏览器是否可全屏,不可全屏给提示,可全屏执行screenfull.toggle()

      if (!screenfull.isEnabled) {
        // 如果不允许进入全屏，发出不允许提示
        this.$message({
          message: "不支持全屏",
          type: "warning"
        });
        return false;
      }
      screenfull.toggle();

完整组件代码

<template>
  <!-- el-tooltip   文字提示 -->
  <div class="btn-fullscreen" @click="buttoncli">
    <el-tooltip
      effect="dark"
      :content="isFullscreen ? `取消全屏` : `全屏`"
      placement="bottom-end"
    >
      <i
        class="iconfont"
        :class="isFullscreen ? 'icon-quxiaoquanping2' : 'icon-quanping2'"
      ></i>
    </el-tooltip>
  </div>
</template>
 
<script>
import screenfull from "screenfull";
//    全屏功能使用:1.安装,npm install --save screenfull
//    2.引入
//    3.点击时判断浏览器是否可全屏,不可全屏给提示,可全屏执行screenfull.toggle()
export default {
  name: "Screenfull",
  data() {
    return {
      isFullscreen: false
    };
  },
  mounted() {
    this.init();
  },
  methods: {
    buttoncli() {
      if (!screenfull.isEnabled) {
        // 如果不允许进入全屏，发出不允许提示
        this.$message({
          message: "不支持全屏",
          type: "warning"
        });
        return false;
      }
      screenfull.toggle();
    },
    change() {
      this.isFullscreen = screenfull.isFullscreen;
    },
    init() {
      if (screenfull.isEnabled) {
        // screenfull.request(); // 并不支持默认全屏显示
        screenfull.on("change", this.change);
      }
    }
  }
};
</script>
<style lang="scss" scoped>
// 引入字体图标库
@import "//at.alicdn.com/t/font_2146611_q77iffjprho.css";
.btn-fullscreen {
  display: inline-block;
  margin: 0 15px;
  .iconfont {
    cursor: pointer;
    &:hover {
      color: #6396fd;
    }
  }
}
</style>