1<template>
2  <div>
3    <div class="nav-container" :class="{ open: isNavigationOpen }">
4      <nav ref="nav" :aria-label="$t('appNavigation.primaryNavigation')">
5        <b-nav vertical class="mb-4">
6          <template v-for="(navItem, index) in navigationItems">
7            <!-- Navigation items with no children -->
8            <b-nav-item
9              v-if="!navItem.children"
10              :key="index"
11              :to="navItem.route"
12              :data-test-id="`nav-item-${navItem.id}`"
13            >
14              <component :is="navItem.icon" />
15              {{ navItem.label }}
16            </b-nav-item>
17
18            <!-- Navigation items with children -->
19            <li v-else :key="index" class="nav-item">
20              <b-button
21                v-b-toggle="`${navItem.id}`"
22                variant="link"
23                :data-test-id="`nav-button-${navItem.id}`"
24              >
25                <component :is="navItem.icon" />
26                {{ navItem.label }}
27                <icon-expand class="icon-expand" />
28              </b-button>
29              <b-collapse :id="navItem.id" tag="ul" class="nav-item__nav">
30                <b-nav-item
31                  v-for="(subNavItem, i) of navItem.children"
32                  :key="i"
33                  :to="subNavItem.route"
34                  :data-test-id="`nav-item-${subNavItem.id}`"
35                >
36                  {{ subNavItem.label }}
37                </b-nav-item>
38              </b-collapse>
39            </li>
40          </template>
41        </b-nav>
42      </nav>
43    </div>
44    <transition name="fade">
45      <div
46        v-if="isNavigationOpen"
47        id="nav-overlay"
48        class="nav-overlay"
49        @click="toggleIsOpen"
50      ></div>
51    </transition>
52  </div>
53</template>
54
55<script>
56//Do not change Mixin import.
57//Exact match alias set to support
58//dotenv customizations.
59import AppNavigationMixin from './AppNavigationMixin';
60
61export default {
62  name: 'AppNavigation',
63  mixins: [AppNavigationMixin],
64  data() {
65    return {
66      isNavigationOpen: false
67    };
68  },
69  watch: {
70    $route: function() {
71      this.isNavigationOpen = false;
72    },
73    isNavigationOpen: function(isNavigationOpen) {
74      this.$root.$emit('change:isNavigationOpen', isNavigationOpen);
75    }
76  },
77  mounted() {
78    this.$root.$on('toggle:navigation', () => this.toggleIsOpen());
79  },
80  methods: {
81    toggleIsOpen() {
82      this.isNavigationOpen = !this.isNavigationOpen;
83    }
84  }
85};
86</script>
87
88<style scoped lang="scss">
89svg {
90  fill: currentColor;
91  height: 1.2rem;
92  width: 1.2rem;
93  margin-left: 0 !important; //!important overriding button specificity
94  vertical-align: text-bottom;
95  &:not(.icon-expand) {
96    margin-right: $spacer;
97  }
98}
99
100.nav {
101  padding-top: $spacer / 4;
102  @include media-breakpoint-up($responsive-layout-bp) {
103    padding-top: $spacer;
104  }
105}
106
107.nav-item__nav {
108  list-style: none;
109  padding-left: 0;
110  margin-left: 0;
111
112  .nav-item {
113    outline: none;
114  }
115
116  .nav-link {
117    padding-left: $spacer * 4;
118    outline: none;
119
120    &:not(.nav-link--current) {
121      font-weight: normal;
122    }
123  }
124}
125
126.btn-link {
127  width: 100%;
128  text-align: left;
129  text-decoration: none !important;
130  border-radius: 0;
131
132  &.collapsed {
133    .icon-expand {
134      transform: rotate(180deg);
135    }
136  }
137}
138
139.icon-expand {
140  float: right;
141  margin-top: $spacer / 4;
142}
143
144.btn-link,
145.nav-link {
146  position: relative;
147  font-weight: $headings-font-weight;
148  padding-left: $spacer; // defining consistent padding for links and buttons
149  padding-right: $spacer;
150  color: theme-color('secondary');
151
152  &:hover {
153    background-color: gray('300');
154    color: theme-color('dark');
155  }
156
157  &:focus {
158    box-shadow: $btn-focus-box-shadow;
159    color: theme-color('dark');
160  }
161}
162
163.nav-link--current,
164.nav-link--current:hover,
165.nav-link--current:focus {
166  font-weight: $headings-font-weight;
167  background-color: theme-color('secondary');
168  color: theme-color('light');
169  cursor: default;
170
171  &::before {
172    content: '';
173    position: absolute;
174    top: 0;
175    bottom: 0;
176    left: 0;
177    width: 4px;
178    background-color: theme-color('primary');
179  }
180}
181
182.nav-container {
183  position: fixed;
184  width: $navigation-width;
185  top: $header-height;
186  bottom: 0;
187  left: 0;
188  z-index: $zindex-fixed;
189  overflow-y: auto;
190  background-color: gray('100');
191  transform: translateX(-$navigation-width);
192  transition: transform $exit-easing--productive $duration--moderate-02;
193  @include media-breakpoint-down(md) {
194    z-index: $zindex-fixed + 2;
195  }
196
197  &.open,
198  &:focus-within {
199    transform: translateX(0);
200    transition-timing-function: $entrance-easing--productive;
201  }
202
203  @include media-breakpoint-up($responsive-layout-bp) {
204    transition-duration: $duration--fast-01;
205    transform: translateX(0);
206  }
207}
208
209.nav-overlay {
210  position: fixed;
211  top: $header-height;
212  bottom: 0;
213  left: 0;
214  right: 0;
215  z-index: $zindex-fixed + 1;
216  background-color: $black;
217  opacity: 0.5;
218
219  &.fade-enter-active {
220    transition: opacity $duration--moderate-02 $entrance-easing--productive;
221  }
222
223  &.fade-leave-active {
224    transition: opacity $duration--fast-02 $exit-easing--productive;
225  }
226
227  &.fade-enter,
228  &.fade-leave-to {
229    opacity: 0;
230  }
231
232  @include media-breakpoint-up($responsive-layout-bp) {
233    display: none;
234  }
235}
236</style>
237