| | |
|---|
| | | return activePath; |
|---|
| | | }, |
|---|
| | | }, |
|---|
| | | beforeMount() { |
|---|
| | | window.addEventListener('resize', this.setVisibleNumber) |
|---|
| | | }, |
|---|
| | | beforeDestroy() { |
|---|
| | | window.removeEventListener('resize', this.setVisibleNumber) |
|---|
| | | }, |
|---|
| | | mounted() { |
|---|
| | | this.setVisibleNumber(); |
|---|
| | | }, |
|---|
| | | methods: { |
|---|
| | | // 根据宽度计算设置显示栏数 |
|---|
| | | setVisibleNumber() { |
|---|
| | | const width = document.body.getBoundingClientRect().width - 380; |
|---|
| | | const elWidth = this.$el.getBoundingClientRect().width; |
|---|
| | | const menuItemNodes = this.$el.children; |
|---|
| | | const menuWidth = Array.from(menuItemNodes).map( |
|---|
| | | (i) => i.getBoundingClientRect().width |
|---|
| | | ); |
|---|
| | | this.visibleNumber = ( |
|---|
| | | parseInt(width - elWidth) / parseInt(menuWidth) |
|---|
| | | ).toFixed(0); |
|---|
| | | const width = document.body.getBoundingClientRect().width / 3; |
|---|
| | | this.visibleNumber = parseInt(width / 85); |
|---|
| | | }, |
|---|
| | | // 菜单选择事件 |
|---|
| | | handleSelect(key, keyPath) { |
|---|
