tab切换实现懒加载，动态新增tab实现

[EdwardQ]

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[EdwardQ]

ams.block('tabs', {
	type: 'tabs',
    props: {
		// 配置tab可动态新增
        editable: true
    },
	options: {
		tab1: 'tab1标题',
		tab2: {
			label: 'tab2 延迟加载',
			// 配置延迟加载
			lazy: true,
			// 配置是否可关闭
			closable: true
		},
		tab3: {
			label: 'tab3 不可点击',
			// 配置不可点击
			disabled: true
		}
	},
	data: {
        // 新增tab计数
        tabIndex: '3',
        // 指定初始化时tab展示哪一个
        active: 'tab1'
    },
	on: {
		// 监听编辑事件
		edit: function(targetName, action) {
			if (action === 'add') {
				// 动态新增tab
                let newTabName = `tab${++this.data.tabIndex}`;
                ams.block(newTabName, fromBlock);

                this.block.blocks.push(newTabName);
                this.block.options[newTabName] = {
                    label: newTabName
                };
                this.data.active = newTabName;
            }
		}
	},
	blocks: {
		tab1: {
			type: 'component',
            options: {
                is: 'div',
                text: '我是tabs1的内容'
            },
			actions: {
                init() {
                    console.log('tab1-init-----')
                }
            }

		},
		tab2: {
			type: 'component',
            options: {
                is: 'div',
                text: '我是tabs2的内容'
            },
			actions: {
                init() {
                    console.log('tab2-init-----')
                }
            }

		},
		tab3: {
			type: 'component',
            options: {
                is: 'div',
                text: '我是tabs3的内容'
            },
			actions: {
                init() {
                    console.log('tab3-init-----')
                }
            }
		}
	}
})