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 | | <template> |  |   <div> |  |     <svg-icon :icon-class="isFullscreen?'exit-fullscreen':'fullscreen'" @click="click" /> |  |   </div> |  | </template> |  |   |  | <script> |  | import screenfull from 'screenfull' |  |   |  | export default { |  |   name: 'Screenfull', |  |   data() { |  |     return { |  |       isFullscreen: false |  |     } |  |   }, |  |   mounted() { |  |     this.init() |  |   }, |  |   beforeDestroy() { |  |     this.destroy() |  |   }, |  |   methods: { |  |     click() { |  |       if (!screenfull.isEnabled) { |  |         this.$message({ message: '你的浏览器不支持全屏', type: 'warning' }) |  |         return false |  |       } |  |       screenfull.toggle() |  |     }, |  |     change() { |  |       this.isFullscreen = screenfull.isFullscreen |  |     }, |  |     init() { |  |       if (screenfull.isEnabled) { |  |         screenfull.on('change', this.change) |  |       } |  |     }, |  |     destroy() { |  |       if (screenfull.isEnabled) { |  |         screenfull.off('change', this.change) |  |       } |  |     } |  |   } |  | } |  | </script> |  |   |  | <style scoped> |  | .screenfull-svg { |  |   display: inline-block; |  |   cursor: pointer; |  |   fill: #5a5e66;; |  |   width: 20px; |  |   height: 20px; |  |   vertical-align: 10px; |  | } |  | </style> | 
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