163 lines
5.5 KiB
Markdown
163 lines
5.5 KiB
Markdown
# Transfer
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## Demos
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### Size variants
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Available size variants for the `ui` prop: `s`/`m`.
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[[ demo src="/demo/transfer/size.vue" ]]
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### Without search input
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[[ demo src="/demo/transfer/no-search.vue" ]]
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### Custom search
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[[ demo src="/demo/transfer/custom-search.vue" ]]
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### Selected values as list
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[[ demo src="/demo/transfer/flat.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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| `datasource` | `Array<Object>` | `[]` | [^datasource] |
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| `searchable` | `boolean` | `true` | Whether to allow search. |
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| `filter` | `function` | See description | [^filter] |
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| `selected` | `Array` | `[]` | [^selected] |
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| `candidate-placeholder` | `string` | - | The placeholder text in the search input of the candidate panel. |
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| `selected-placeholder` | `string` | - | The placeholder text in the search input of the selected panel. |
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| `selected-show-mode` | `string` | `'tree'` | [^selected-show-mode] |
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| `keys` | `string|function` | `'value'` | The customized unique key for `datasource` items. String values can be used to specify which field value is used. Also a function can bu used to specify a customized key value. |
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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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| `s` | Small transfer. |
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| `m` | Medium transfer. |
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+++
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^^^
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^^^datasource
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The datasource of the transfer. The type of node item is `{label, value, children, ...}`.
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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 each item. |
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| `value` | `string` | The value of each item. |
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| `children` | `Array<Object>=` | The child items of each item. The item type is the same as `datasource` items. |
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+++
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^^^
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^^^filter
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The filter function. The function signature is `function(from, keyword, item, index, datasource): boolean`. Items that make filter function returns `false` will be hidden.
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+++Parameters
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| Name | Type | Description |
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| -- | -- | -- |
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| `from` | `string` | The source of search. Available values are `'candidate'`/`'selected'`. `'candidate'` means search is triggered from the candidate panel, `'selected'` means from the selected panel. |
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| `keyword` | `string` | The search keyword. |
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| `item` | `Object` | Each item in `datasource`. |
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| `index` | `number` | The index of each item among its siblings. |
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| `datasource` | `Array<{label: string, ...}>` | Same as the `datasource` prop. |
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+++
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+++Default value
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```js
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import { includes } from 'lodash'
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function (keyword, { label }) {
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return includes(label, keyword)
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}
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```
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+++
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^^^
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^^^selected
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:::badges
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`v-model`
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:::
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The selected values which is the `value` array of `datasource` items (affected by the `keys` prop).
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^^^
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^^^selected-show-mode
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To specify how should items inside selected panel be displayed.
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+++Enum values
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| Value | Description |
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| -- | -- |
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| `tree` | Displayed as a tree structure. |
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| `flat` | Displayed as a flattened array. |
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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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| `candidate-head` | The head area of the candidate panel. |
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| `selected-head` | The head area of the selected panel. |
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| `candidate-title` | The title text of the candidate panel. |
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| `selected-title` | The title text of the selected panel. |
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| `candidate-no-data` | The content displayed when there's no data inside the candidate panel. |
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| `selected-no-data` | The content displayed when there's no data inside the selected panel. |
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| `candidate-item` | [^candidate-item] |
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| `selected-item` | [^selected-item] |
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| `candidate-item-label` | Label text of each item inside the candidate panel. Shares the same scope properties with slot `candidate-item`. |
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| `selected-item-label` | Label text of each item inside the selected panel. Shares the same scope properties with slot `selected-item` when `selected-show-mode` is `'tree'`. Otherwise this slot specifies custom content for any item along the path for all selected leaf item and shares the same scope properties with slot `candidate-item`. |
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^^^candidate-item
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The content of each item inside the candidate panel.
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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 current item. |
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| `value` | `string` | The value of current item. |
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| `children` | `Array<Object>=` | The array of the child items of each item. Shares the same type with `datasource` items. |
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| `index` | `number` | The index of current item among its siblings. |
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| `depth` | `number` | The depth of current item in the tree structure. |
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+++
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^^^
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^^^selected-item
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The content of each item inside the selected panel.
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+++Scope properties
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The scope properties will be the same as slot `candidate-item` when `selected-show-mode` is `'tree'`. They'll be as follows when `selected-show-mode` is `'flat'`.
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| Name | Type | Description |
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| -- | -- | -- |
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| `items` | `Array<Object>` | All ancestor items from the top level down to current item. Shares the same item type with `datasource` items. |
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| `index` | `number` | The index of current item among its siblings. |
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+++
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^^^
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### Events
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| Name | Description |
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| -- | -- |
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| `select` | Triggered when user changes selection. The callback parameter list is `(selected: Array<string>)` and `selected` is the array of `value` properties of selected items.
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### Icons
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| Name | Description |
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| -- | -- |
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| `checked` | The checked state. |
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| `select` | Select items. |
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| `remove` | Remove items. |
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| `expand` | Click to expand (currently being collapsed). |
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| `collapse` | Click to collapse (currently being expanded). |
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| `separator` | The separator between level labels when `selected-show-mode` is `'flat'`. |
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