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chore(docs): add example of using dropdown in form-tags custom rendering (closes #1794) #4582

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tmorehouse merged 4 commits into from
Jan 9, 2020
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chore(docs): add example of using dropdown in form-tags custom rendering (closes #1794) #4582

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chore(docs): add example of using dropdown in form-tags custom rendering
tmorehouse Jan 9, 2020
76ee79c
Update README.md
tmorehouse Jan 9, 2020
cbcb924
Update README.md
jacobmllr95 Jan 9, 2020
f6a4673
Merge branch 'dev' into docs/tags
tmorehouse Jan 9, 2020
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151 changes: 128 additions & 23 deletions src/components/form-tags/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -501,27 +501,27 @@ of tags:
<!-- prop `add-on-change` is needed to enable adding tags vie the `change` event -->
<b-form-tags v-model="value" size="lg" add-on-change no-outer-focus class="mb-2">
<template v-slot="{ tags, inputAttrs, inputHandlers, disabled, removeTag }">
<ul v-if="tags.length > 0" class="list-inline d-inline-block mb-2">
<li v-for="tag in tags" :key="tag" class="list-inline-item">
<b-form-tag
@remove="removeTag(tag)"
:title="tag"
:disabled="disabled"
variant="info"
>{{ tag }}</b-form-tag>
</li>
</ul>
<b-form-select
v-bind="inputAttrs"
v-on="inputHandlers"
:disabled="disabled || availableOptions.length === 0"
:options="availableOptions"
>
<template v-slot:first>
<!-- This is required to prevent bugs with Safari -->
<option disabled value="">Choose a tag...</option>
</template>
</b-form-select>
<ul v-if="tags.length > 0" class="list-inline d-inline-block mb-2">
<li v-for="tag in tags" :key="tag" class="list-inline-item">
<b-form-tag
@remove="removeTag(tag)"
:title="tag"
:disabled="disabled"
variant="info"
>{{ tag }}</b-form-tag>
</li>
</ul>
<b-form-select
v-bind="inputAttrs"
v-on="inputHandlers"
:disabled="disabled || availableOptions.length === 0"
:options="availableOptions"
>
<template v-slot:first>
<!-- This is required to prevent bugs with Safari -->
<option disabled value="">Choose a tag...</option>
</template>
</b-form-select>
</template>
</b-form-tags>
</b-form-group>
Expand All @@ -532,13 +532,13 @@ of tags:
export default {
data() {
return {
allOptions: ['Apple', 'Orange', 'Banana', 'Lime', 'Peach', 'Chocolate', 'Strawberry'],
options: ['Apple', 'Orange', 'Banana', 'Lime', 'Peach', 'Chocolate', 'Strawberry'],
value: []
}
},
computed: {
availableOptions() {
return this.allOptions.filter(opt => this.value.indexOf(opt) === -1)
return this.options.filter(opt => this.value.indexOf(opt) === -1)
}
}
}
Expand Down Expand Up @@ -657,6 +657,111 @@ default slot's scope.
<!-- form-tags-custom-components-advanced.vue -->
```

The following is an example of using the `<b-dropdown>` component for choosing or searching from a
pre-defined set of tags:

```html
<template>
<div>
<b-form-group label="Tagged input using dropdown">
<b-form-tags v-model="value" no-outer-focus class="mb-2">
<template v-slot="{ tags, disabled, addTag, removeTag }">
<ul v-if="tags.length > 0" class="list-inline d-inline-block mb-2">
<li v-for="tag in tags" :key="tag" class="list-inline-item">
<b-form-tag
@remove="removeTag(tag)"
:title="tag"
:disabled="disabled"
variant="info"
>{{ tag }}</b-form-tag>
</li>
</ul>

<b-dropdown size="sm" variant="outline-secondary" block menu-class="w-100">
<template v-slot:button-content>
<b-icon icon="tag-fill"></b-icon> Choose tags
</template>
<b-dropdown-form @submit.stop.prevent="() => {}">
<b-form-group
label-for="tag-search-input"
label="Search tags"
label-cols-md="auto"
class="mb-0"
label-size="sm"
:description="searchDesc"
:disabled="disabled"
>
<b-form-input
v-model="search"
id="tag-search-input"
type="search"
size="sm"
autocomplete="off"
></b-form-input>
</b-form-group>
</b-dropdown-form>
<b-dropdown-divider></b-dropdown-divider>
<b-dropdown-item-button
v-for="option in availableOptions"
:key="option"
@click="onOptionClick({ option, addTag })"
>
{{ option }}
</b-dropdown-item-button>
<b-dropdown-text v-if="availableOptions.length === 0">
There are no tags available to select
</b-dropdown-text>
</b-dropdown>
</template>
</b-form-tags>
</b-form-group>
</div>
</template>

<script>
export default {
data() {
return {
options: ['Apple', 'Orange', 'Banana', 'Lime', 'Peach', 'Chocolate', 'Strawberry'],
search: '',
value: []
}
},
computed: {
criteria() {
// Compute the search criteria
return this.search.trim().toLowerCase()
},
availableOptions() {
const criteria = this.criteria
// Filter out already selected options
const options = this.options.filter(opt => this.value.indexOf(opt) === -1)
if (criteria) {
// Show only options that match criteria
return options.filter(opt => opt.toLowerCase().indexOf(criteria) > -1);
}
// Show all options available
return options
},
searchDesc() {
if (this.criteria && this.availableOptions.length === 0) {
return 'There are no tags matching your search criteria'
}
return ''
}
},
methods: {
onOptionClick({ option, addTag }) {
addTag(option)
this.search = ''
}
}
}
</script>

<!-- b-form-tags-dropdown-example.vue -->
```

### Creating wrapper components

You can easily create a custom wrapper component with your preferred rendering style as follows:
Expand Down