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			306 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Markdown
		
	
	
			
		
		
	
	
			306 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Markdown
		
	
	
| ## Tabulación
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| 
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| Divide colecciones de datos que están relacionados pero pertenecen a diferentes tipos.
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| 
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| ### Uso básico
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| 
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| Tabulación básica y concisa
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| 
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| :::demo Tabulación provee funcionalidad de tarjeta selectiva. Por defecto, la primer pestaña es seleccionada como activa, y es posible activar cualquier pestaña estableciendo el atributo de `value`.
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| 
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| ```html
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| <template>
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|   <el-tabs v-model="activeName" @tab-click="handleClick">
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|     <el-tab-pane label="User" name="first">User</el-tab-pane>
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|     <el-tab-pane label="Config" name="second">Config</el-tab-pane>
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|     <el-tab-pane label="Role" name="third">Role</el-tab-pane>
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|     <el-tab-pane label="Task" name="fourth">Task</el-tab-pane>
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|   </el-tabs>
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| </template>
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| <script>
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|   export default {
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|     data() {
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|       return {
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|         activeName: 'first'
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|       };
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|     },
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|     methods: {
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|       handleClick(tab, event) {
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|         console.log(tab, event);
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|       }
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|     }
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|   };
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| </script>
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| ```
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| :::
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| 
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| ### Estilo de Tarjeta
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| 
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| Pestañas diseñadas como tarjetas.
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| 
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| :::demo Establecer `type` a `card` para obtener una pestaña diseñada como tarjeta.
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| 
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| ```html
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| <template>
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|   <el-tabs type="card" @tab-click="handleClick">
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|     <el-tab-pane label="User">User</el-tab-pane>
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|     <el-tab-pane label="Config">Config</el-tab-pane>
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|     <el-tab-pane label="Role">Role</el-tab-pane>
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|     <el-tab-pane label="Task">Task</el-tab-pane>
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|   </el-tabs>
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| </template>
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| <script>
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|   export default {
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|     data() {
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|       return {
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|         activeName: 'first'
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|       };
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|     },
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|     methods: {
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|       handleClick(tab, event) {
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|         console.log(tab, event);
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|       }
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|     }
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|   };
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| </script>
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| ```
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| :::
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| 
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| ### Tarjeta con Bordes
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| 
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| Pestañas de tarjeta con bordes.
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| 
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| :::demo Establecer `type` a `border-card`.
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| 
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| ```html
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| <el-tabs type="border-card">
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|   <el-tab-pane label="User">User</el-tab-pane>
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|   <el-tab-pane label="Config">Config</el-tab-pane>
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|   <el-tab-pane label="Role">Role</el-tab-pane>
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|   <el-tab-pane label="Task">Task</el-tab-pane>
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| </el-tabs>
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| ```
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| 
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| :::
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| 
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| ### Posición de tabulación
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| 
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| Es posible usar el atributo `tab-position` para establecer la posición de la tabulación.
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| 
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| :::demo Es posible escoger entre cuatro direcciones: `tabPosition="left|right|top|bottom"`
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| 
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| ```html
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| <template>
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|   <el-radio-group v-model="tabPosition" style="margin-bottom: 30px;">
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|     <el-radio-button label="top">top</el-radio-button>
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|     <el-radio-button label="right">right</el-radio-button>
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|     <el-radio-button label="bottom">bottom</el-radio-button>
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|     <el-radio-button label="left">left</el-radio-button>
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|   </el-radio-group>
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| 
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|   <el-tabs :tab-position="tabPosition" style="height: 200px;">
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|     <el-tab-pane label="User">User</el-tab-pane>
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|     <el-tab-pane label="Config">Config</el-tab-pane>
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|     <el-tab-pane label="Role">Role</el-tab-pane>
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|     <el-tab-pane label="Task">Task</el-tab-pane>
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|   </el-tabs>
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| </template>
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| <script>
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|   export default {
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|     data() {
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|       return {
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|         tabPosition: 'left'
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|       };
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|     }
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|   };
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| </script>
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| ```
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| :::
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| 
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| ### Pestaña Personalizada
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| 
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| Es posible usar slots con nombre para personalizar el contenido de la etiqueta de la pestaña.
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| 
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| :::demo
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| ```html
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| <el-tabs type="border-card">
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|   <el-tab-pane>
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|     <span slot="label"><i class="el-icon-date"></i> Route</span>
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|     Route
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|   </el-tab-pane>
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|   <el-tab-pane label="Config">Config</el-tab-pane>
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|   <el-tab-pane label="Role">Role</el-tab-pane>
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|   <el-tab-pane label="Task">Task</el-tab-pane>
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| </el-tabs>
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| ```
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| :::
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| 
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| ### Agregar y cerrar pestaña
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| 
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| Solo las pestañas de tipo tarjeta soportan adición y cierre.
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| 
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| :::demo
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| ```html
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| <el-tabs v-model="editableTabsValue" type="card" editable @edit="handleTabsEdit">
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|   <el-tab-pane
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|     v-for="(item, index) in editableTabs"
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|     :key="item.name"
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|     :label="item.title"
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|     :name="item.name"
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|   >
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|     {{item.content}}
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|   </el-tab-pane>
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| </el-tabs>
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| <script>
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|   export default {
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|     data() {
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|       return {
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|         editableTabsValue: '2',
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|         editableTabs: [{
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|           title: 'Tab 1',
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|           name: '1',
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|           content: 'Tab 1 content'
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|         }, {
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|           title: 'Tab 2',
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|           name: '2',
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|           content: 'Tab 2 content'
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|         }],
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|         tabIndex: 2
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|       }
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|     },
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|     methods: {
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|       handleTabsEdit(targetName, action) {
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|         if (action === 'add') {
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|           let newTabName = ++this.tabIndex + '';
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|           this.editableTabs.push({
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|             title: 'New Tab',
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|             name: newTabName,
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|             content: 'New Tab content'
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|           });
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|           this.editableTabsValue = newTabName;
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|         }
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|         if (action === 'remove') {
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|           let tabs = this.editableTabs;
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|           let activeName = this.editableTabsValue;
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|           if (activeName === targetName) {
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|             tabs.forEach((tab, index) => {
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|               if (tab.name === targetName) {
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|                 let nextTab = tabs[index + 1] || tabs[index - 1];
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|                 if (nextTab) {
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|                   activeName = nextTab.name;
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|                 }
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|               }
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|             });
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|           }
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|           
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|           this.editableTabsValue = activeName;
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|           this.editableTabs = tabs.filter(tab => tab.name !== targetName);
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|         }
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|       }
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|     }
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|   }
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| </script>
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| ```
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| :::
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| 
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| ### Botón disparador personalizado de la nueva pestaña
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| 
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| :::demo
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| ```html
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| <div style="margin-bottom: 20px;">
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|   <el-button
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|     size="small"
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|     @click="addTab(editableTabsValue)"
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|   >
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|     add tab
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|   </el-button>
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| </div>
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| <el-tabs v-model="editableTabsValue" type="card" closable @tab-remove="removeTab">
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|   <el-tab-pane
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|     v-for="(item, index) in editableTabs"
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|     :key="item.name"
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|     :label="item.title"
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|     :name="item.name"
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|   >
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|     {{item.content}}
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|   </el-tab-pane>
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| </el-tabs>
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| <script>
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|   export default {
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|     data() {
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|       return {
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|         editableTabsValue: '2',
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|         editableTabs: [{
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|           title: 'Tab 1',
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|           name: '1',
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|           content: 'Tab 1 content'
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|         }, {
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|           title: 'Tab 2',
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|           name: '2',
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|           content: 'Tab 2 content'
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|         }],
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|         tabIndex: 2
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|       }
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|     },
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|     methods: {
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|       addTab(targetName) {
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|         let newTabName = ++this.tabIndex + '';
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|         this.editableTabs.push({
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|           title: 'New Tab',
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|           name: newTabName,
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|           content: 'New Tab content'
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|         });
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|         this.editableTabsValue = newTabName;
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|       },
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|       removeTab(targetName) {
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|         let tabs = this.editableTabs;
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|         let activeName = this.editableTabsValue;
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|         if (activeName === targetName) {
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|           tabs.forEach((tab, index) => {
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|             if (tab.name === targetName) {
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|               let nextTab = tabs[index + 1] || tabs[index - 1];
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|               if (nextTab) {
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|                 activeName = nextTab.name;
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|               }
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|             }
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|           });
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|         }
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|         
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|         this.editableTabsValue = activeName;
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|         this.editableTabs = tabs.filter(tab => tab.name !== targetName);
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|       }
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|     }
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|   }
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| </script>
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| ```
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| :::
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| 
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| ### Atributos de Pestañas
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| | Atributo       | Descripción                          | Tipo    | Valores aceptados     | Por defecto                 |
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| | -------------- | ------------------------------------ | ------- | --------------------- | --------------------------- |
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| | value / v-model | valor enlazado, nombre de la pestaña seleccionada    | string  | —                     | nombre de la primer pestaña |
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| | type           | tipo de Pestaña                      | string  | card/border-card      | —                           |
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| | closable       | si la Pestaña es cerrable            | boolean | —                     | false                       |
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| | addable        | si la Pestaña es añadible            | boolean | —                     | false                       |
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| | editable       | si la Pestaña es añadible y cerrable | boolean | —                     | false                       |
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| | tab-position   | posición de tabulación               | string  | top/right/bottom/left | top                         |
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| | stretch        | si el ancho del tab se ajusta automáticamente a su contenedor | boolean | - | false |
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| | before-leave   | función `hook` antes de cambiar de pestaña. Si se devuelve `false` o se devuelve una `Promise` y luego se rechaza, se evitará el cambio. | Function(activeName, oldActiveName)  | — | — |
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| 
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| ### Eventos de Pestañas
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| | Nombre de Evento | Descripción                              | Parámetros                    |
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| | ---------------- | ---------------------------------------- | ----------------------------- |
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| | tab-click        | se lanza cuando se hace click a una pestaña | pestaña clickeada             |
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| | tab-remove       | se lanza cuando se hace click al botón tab-remove | nombre de la pestaña removida |
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| | tab-add          | se lanza cuando se hace click al botón tab-add | —                             |
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| | edit             | se lanza cuando los botones de tab-add y/o tab-remove son clickeados | (targetName, action)          |
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| 
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| ### Attributos del Tab-pane
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| | Atributo | Descripción                                                  | Tipo    | Valores Aceptados | Default                                                      |
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| | -------- | ------------------------------------------------------------ | ------- | ----------------- | ------------------------------------------------------------ |
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| | label    | título de la pestaña                                         | string  | —                 | —                                                            |
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| | disabled | si la Tabulación está deshabilitada                          | boolean | —                 | false                                                        |
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| | name     | identificador correspondiente al value de la Tabulación, representando el alias del tab-pane | string  | —                 | número ordinal del tab-pane en la secuencia, p.ej el primer tab-pane de pestañas es '1' |
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| | closable | si el Tab es cerrable                                        | boolean | —                 | false                                                        |
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| | lazy     | si Tab es renderizado con `lazy-load`                        | boolean | —                 | false                                                        |
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