163 lines
5.1 KiB
Markdown
163 lines
5.1 KiB
Markdown
# Dropdown
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:::tip
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`Dropdown` can be used with embedded [`Option`](./option) or [`OptionGroup`](./option-group).
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:::
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## Demos
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### Style variants
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Available style variants for the `ui` prop: `primary`/`text`.
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[[ demo src="/demo/dropdown/style.vue" ]]
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### Size variants
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Available size values for the `ui` prop: `xs`/`s`/`m`/`l`.
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[[ demo src="/demo/dropdown/size.vue" ]]
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### Using embedded `OptionGroup`s & `Option`s
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Can be used with embedded `OptionGroup`s & `Option`s.
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[[ demo src="/demo/dropdown/inline.vue" ]]
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### Searchable dropdown
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Using`searchable` prop to make the component support search functionality.
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[[ demo src="/demo/dropdown/searchable.vue" ]]
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### Disabled dropdown
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Use the `disabled` property in `options` items to disable single option.
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[[ demo src="/demo/dropdown/disable.vue" ]]
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### Trigger and split
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Use the `trigger` prop to specify when to open the dropdown menu. Use the `split` prop to separate command button and dropdown button.
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[[ demo src="/demo/dropdown/other.vue" ]]
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## API
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### Props
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| Name | Type | Default | Description |
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| -- | -- | -- | -- |
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| `ui` | `string=` | - | [^ui] |
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| `options` | `Array<Object>=` | `[]` | [^options] |
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| `label` | `string` | - | The descriptive label of the dropdown button. |
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| `trigger` | `string=` | `'click'` | When to trigger the dropdown to open. Available values are `'click'`/`'hover'`. |
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| `split` | `boolean=` | `false` | Whether to split the dropdown button into a command button and a toggle button for the dropdown layer. |
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| `disabled` | `boolean=` | `false` | Whether the dropdown is disabled. |
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| `overlay-class` | `string|Array|Object=` | - | See the `overlay-class` prop of [`Overlay`](./overlay). |
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^^^ui
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Style variants.
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+++Enum values
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| Value | Description |
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| -- | -- |
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| `primary` | Primary style. |
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| `text` | Text style. |
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| `xs` | Extra small. |
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| `s` | Small. |
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| `m` | Medium. |
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| `l` | Large. |
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^^^
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^^^options
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The list of options with the option type being `{label, value, dropdown, disabled, ...}`.
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+++Properties
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| Name | Type | Description |
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| -- | -- | -- |
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| `label` | `string` | The descriptive label of the option. |
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| `value` | `*` | The value of the option. |
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| `options` | `Array<Object>=` | The child options of current option. The item type is the same as the items of the `options` prop. |
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| `disabled` | `boolean=` | Whether the option is disabled. |
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+++
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^^^
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### Slots
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| Name | Description |
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| -- | -- |
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| `default` | The content of the options dropdown layer. Can be used to place `Option`s or `OptionGroups`s when the `options` prop is not specified. |
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| `before` | The content before the options in the dropdown layer. |
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| `after` | The content after the options in the dropdown layer. |
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| `label` | [^scoped-slot-label] |
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| `group-label` | [^scoped-slot-group-label] |
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| `option-label` | [^scoped-slot-option-label] |
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| `option` | [^scoped-slot-option] |
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^^^scoped-slot-label
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The content of the select button. Displays the `label` prop by default.
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+++Scope properties
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| Name | Type | Description |
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| -- | -- | -- |
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| `label` | `string` | The descriptive label of the dropdown option. |
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+++
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^^^
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^^^scoped-slot-group-label
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The label text of each option group (option with child `options`). Displays the `label` of the option by default.
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+++Scope properties
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| Name | Type | Description |
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| -- | -- | -- |
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| `label` | `string` | The descriptive label of the option group. |
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| `disabled` | `boolean=` | Whether the option group is disabled. |
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+++
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Additionally, custom properties in current option, apart from the listed ones, will also be passes into the scope object via `v-bind`.
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^^^
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^^^scoped-slot-option-label
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The label text of each option (option without child `options`). Displays the `label` of the option by default.
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+++Scope properties
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| Name | Type | Description |
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| -- | -- | -- |
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| `label` | `string` | The descriptive label of the option. |
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| `value` | `*` | The value of the option. |
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| `selected` | `boolean` | Whether the the option is selected. |
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| `disabled` | `boolean=` | Whether the option is disabled. |
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+++
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Additionally, custom properties in current option, apart from the listed ones, will also be passes into the scope object via `v-bind`.
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^^^
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^^^scoped-slot-option
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The entire content area of each option (option without child `options`). Displays the default content of `Options` component by default.
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+++Scope properties
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| Name | Type | Description |
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| -- | -- | -- |
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| `label` | `string` | The descriptive label of the option. |
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| `value` | `*` | The value of the option. |
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| `selected` | `boolean` | Whether the the option is selected. |
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| `disabled` | `boolean=` | Whether the option is disabled. |
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+++
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Additionally, custom properties in current option, apart from the listed ones, will also be passes into the scope object via `v-bind`.
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^^^
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### Events
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| Name | Description |
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| -- | -- |
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| `click` | Triggered when an option is clicked. The callback parameter list is `(value: *=)`. `value` is the `value` property of the option being clicked. Also triggered when `split` is `true` and the command button is clicked, in this case there won't be a `value` argument. |
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### Icons
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| Name | Description |
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| -- | -- |
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| `expand` | Expand the dropdown layer. |
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| `collapse` | Collapse the dropdown layer. |
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