#29 Extract wizard step into separate component and expose via scoped slot

dev-example/App.vue

@@ -10,6 +10,15 @@
                  @on-loading="setLoading"
                  @on-error="setError"
                  class="card" ref="wizard">
+      <template slot="step" scope="props">
+        <wizard-step :tab="props.tab"
+                     @click.native="props.navigateToTab(props.index)"
+                     :transition="props.transition"
+                     :key="props.tab.title"
+                     :index="props.index">
+        </wizard-step>
+      </template>
+
        <tab-content title="Personal details" icon="ti-user">
          My first tab
        </tab-content>
@@ -20,13 +29,6 @@
         <div v-if="error">
           {{error}}
         </div>
-      <template slot="footer" scope="props">
-        <div class="wizard-footer-right">
-          <wizard-button :style="props.fillButtonStyle">Cancel</wizard-button>
-          <wizard-button @click.native="props.nextTab()" class="wizard-footer-right" :style="props.fillButtonStyle">Next</wizard-button>
-        </div>
-
-      </template>
     </form-wizard>
   </div>
 </template>

src/components/FormWizard.vue

@@ -12,31 +12,18 @@
              :style="progressBarStyle"></div>
       </div>
       <ul class="wizard-nav wizard-nav-pills">
-        <li v-for="(tab, index) in tabs" :class="{active:tab.active}">
-          <a href="" @click.prevent="navigateToTab(index)">
-            <div class="wizard-icon-circle"
-                 :class="{checked:isChecked(index),square_shape:isStepSquare, tab_shape:isTabShape}"
-                 :style="[isChecked(index)? stepCheckedStyle : {}, tab.validationError ? errorStyle : {}]">
-
-              <transition :name="transition" mode="out-in">
-                <div v-if="tab.active" class="wizard-icon-container"
-                     :class="{square_shape:isStepSquare, tab_shape:isTabShape}"
-                     :style="[tab.active ? iconActiveStyle: {}, tab.validationError ? errorStyle : {}]">
-                  <i v-if="tab.icon" :class="tab.icon" class="wizard-icon"></i>
-                  <i v-else class="wizard-icon">{{index + 1}}</i>
-                </div>
-                <i v-if="!tab.active && tab.icon" :class="tab.icon" class="wizard-icon"></i>
-                <i v-if="!tab.active && !tab.icon" class="wizard-icon">{{index + 1}}</i>
-              </transition>
-
-            </div>
-            <span class="stepTitle"
-                  :class="{active:tab.active, has_error:tab.validationError}"
-                  :style="tab.active ? stepTitleStyle : {}">
-              {{tab.title}}
-            </span>
-          </a>
-        </li>
+        <slot name="step" v-for="(tab, index) in tabs"
+              :tab="tab"
+              :index="index"
+              :navigate-to-tab="navigateToTab"
+              :transition="transition">
+          <wizard-step :tab="tab"
+                       @click.native="navigateToTab(index)"
+                       :transition="transition"
+                       :key="tab.title"
+                       :index="index">
+          </wizard-step>
+        </slot>
       </ul>
       <div class="wizard-tab-content">
         <slot>
@@ -89,10 +76,12 @@
 </template>
 <script>
   import WizardButton from './WizardButton.vue'
+  import WizardStep from './WizardStep.vue'
   export default{
     name: 'form-wizard',
     components: {
-      WizardButton
+      WizardButton,
+      WizardStep
     },
     props: {
       title: {
@@ -181,34 +170,6 @@
           color: this.color
         }
       },
-      iconActiveStyle () {
-        return {
-          backgroundColor: this.color
-        }
-      },
-      stepCheckedStyle () {
-        return {
-          borderColor: this.color
-        }
-      },
-      errorStyle () {
-        return {
-          borderColor: this.errorColor,
-          backgroundColor: this.errorColor
-        }
-      },
-      stepTitleStyle () {
-        var isError = this.tabs[this.activeTabIndex].validationError
-        return {
-          color: isError ? this.errorColor : this.color
-        }
-      },
-      isStepSquare () {
-        return this.shape === 'square'
-      },
-      isTabShape () {
-        return this.shape === 'tab'
-      },
       fillButtonStyle () {
         return {
           backgroundColor: this.color,
@@ -234,7 +195,6 @@
         this.tabs.splice(index, 0, item)
         // if a step is added before the current one, go to it
         if (index < this.activeTabIndex + 1) {
-          console.log('Changing tabs', index, this.activeTabIndex)
           this.maxStep = index
           this.changeTab(this.activeTabIndex + 1, index)
         }
@@ -255,9 +215,6 @@
           tabs.splice(index, 1)
         }
       },
-      isChecked (index) {
-        return index <= this.maxStep
-      },
       navigateToTab (index) {
         this.$emit('on-change', this.activeTabIndex, index)
         let validate = index > this.activeTabIndex
@@ -363,9 +320,7 @@
           newTab.active = true
         }
         this.activeTabIndex = newIndex
-        this.checkStep()
-        this.tryChangeRoute(newTab)
-        this.increaseMaxStep()
+        this.activateTabAndCheckStep(this.activeTabIndex)
         return true
       },
       tryChangeRoute (tab) {
@@ -409,13 +364,16 @@
         this.deactivateTabs()
         let tab = this.tabs[index]
         tab.active = true
+        tab.checked = true
         this.tryChangeRoute(tab)
       },
       activateTabAndCheckStep (index) {
         this.activateTab(index)
         this.checkStep()
-        this.maxStep = this.startIndex
-        this.activeTabIndex = this.startIndex
+        if (index > this.maxStep) {
+          this.maxStep = index
+        }
+        this.activeTabIndex = index
       },
       initializeTabs () {
         if (this.tabs.length > 0 && this.startIndex === 0) {
@@ -440,13 +398,4 @@
 </script>
 <style lang="scss">
   @import "./../assets/wizard";
-
-  .fade-enter-active, .fade-leave-active {
-    transition: opacity .15s
-  }
-
-  .fade-enter, .fade-leave-to /* .fade-leave-active in <2.1.8 */
-  {
-    opacity: 0
-  }
 </style>

src/components/TabContent.vue

@@ -34,7 +34,19 @@
     data () {
       return {
         active: false,
-        validationError: null
+        validationError: null,
+        checked: false
+      }
+    },
+    computed: {
+      shape () {
+        return this.$parent.shape
+      },
+      color () {
+        return this.$parent.color
+      },
+      errorColor () {
+        return this.$parent.errorColor
       }
     },
     mounted () {

src/components/WizardStep.vue

@@ -0,0 +1,79 @@
+<template>
+  <li :class="{active:tab.active}">
+    <a>
+      <div class="wizard-icon-circle"
+           :class="{checked: tab.checked,square_shape:isStepSquare, tab_shape:isTabShape}"
+           :style="[tab.checked ? stepCheckedStyle : {}, tab.validationError ? errorStyle : {}]">
+
+        <transition :name="transition" mode="out-in">
+          <div v-if="tab.active" class="wizard-icon-container"
+               :class="{square_shape:isStepSquare, tab_shape:isTabShape}"
+               :style="[tab.active ? iconActiveStyle: {}, tab.validationError ? errorStyle : {}]">
+            <i v-if="tab.icon" :class="tab.icon" class="wizard-icon"></i>
+            <i v-else class="wizard-icon">{{index + 1}}</i>
+          </div>
+          <i v-if="!tab.active && tab.icon" :class="tab.icon" class="wizard-icon"></i>
+          <i v-if="!tab.active && !tab.icon" class="wizard-icon">{{index + 1}}</i>
+        </transition>
+
+      </div>
+      <span class="stepTitle"
+            :class="{active:tab.active, has_error:tab.validationError}"
+            :style="tab.active ? stepTitleStyle : {}">
+              {{tab.title}}
+            </span>
+    </a>
+  </li>
+</template>
+<script>
+  export default {
+    props: {
+      tab: {
+        type: Object,
+        default: () => {
+
+        }
+      },
+      transition: {
+        type: String,
+        default: ''
+      },
+      index: {
+        type: Number,
+        default: 0
+      }
+    },
+    computed: {
+      iconActiveStyle () {
+        return {
+          backgroundColor: this.tab.color
+        }
+      },
+      stepCheckedStyle () {
+        return {
+          borderColor: this.tab.color
+        }
+      },
+      errorStyle () {
+        return {
+          borderColor: this.tab.errorColor,
+          backgroundColor: this.tab.errorColor
+        }
+      },
+      stepTitleStyle () {
+        let isError = this.tab.validationError
+        return {
+          color: isError ? this.tab.errorColor : this.tab.color
+        }
+      },
+      isStepSquare () {
+        return this.tab.shape === 'square'
+      },
+      isTabShape () {
+        return this.tab.shape === 'tab'
+      }
+    }
+  }
+</script>
+<style>
+</style>

src/index.js

@@ -1,11 +1,13 @@
 import FormWizard from './components/FormWizard.vue'
 import TabContent from './components/TabContent.vue'
 import WizardButton from './components/WizardButton.vue'
+import WizardStep from './components/WizardStep.vue'
 const VueFormWizard = {
   install (Vue) {
     Vue.component('form-wizard', FormWizard)
     Vue.component('tab-content', TabContent)
     Vue.component('wizard-button', WizardButton)
+    Vue.component('wizard-step', WizardStep)
   }
 }
 // Automatic installation if Vue has been added to the global scope.
@@ -17,5 +19,6 @@ export default VueFormWizard
 export {
   FormWizard,
   TabContent,
-  WizardButton
+  WizardButton,
+  WizardStep
 }