197 lines
6.9 KiB
Markdown
197 lines
6.9 KiB
Markdown
## Tooltip
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Display prompt information for mouse hover.
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### Basic usage
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Tooltip has 9 placements.
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:::demo Use attribute `content` to set the display content when hover. The attribute `placement` determines the position of the tooltip. Its value is `[orientation]-[alignment]` with four orientations `top`, `left`, `right`, `bottom` and three alignments `start`, `end`, `null`, and the default alignment is null. Take `placement="left-end"` for example, Tooltip will display on the left of the element which you are hovering and the bottom of the tooltip aligns with the bottom of the element.
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```html
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<div class="box">
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<div class="top">
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<el-tooltip class="item" effect="dark" content="Top Left prompts info" placement="top-start">
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<el-button>top-start</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Top Center prompts info" placement="top">
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<el-button>top</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Top Right prompts info" placement="top-end">
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<el-button>top-end</el-button>
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</el-tooltip>
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</div>
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<div class="left">
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<el-tooltip class="item" effect="dark" content="Left Top prompts info" placement="left-start">
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<el-button>left-start</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Left Center prompts info" placement="left">
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<el-button>left</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Left Bottom prompts info" placement="left-end">
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<el-button>left-end</el-button>
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</el-tooltip>
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</div>
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<div class="right">
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<el-tooltip class="item" effect="dark" content="Right Top prompts info" placement="right-start">
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<el-button>right-start</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Right Center prompts info" placement="right">
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<el-button>right</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Right Bottom prompts info" placement="right-end">
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<el-button>right-end</el-button>
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</el-tooltip>
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</div>
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<div class="bottom">
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<el-tooltip class="item" effect="dark" content="Bottom Left prompts info" placement="bottom-start">
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<el-button>bottom-start</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Bottom Center prompts info" placement="bottom">
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<el-button>bottom</el-button>
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</el-tooltip>
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<el-tooltip class="item" effect="dark" content="Bottom Right prompts info" placement="bottom-end">
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<el-button>bottom-end</el-button>
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</el-tooltip>
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</div>
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</div>
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<style>
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.box {
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width: 400px;
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.top {
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text-align: center;
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}
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.left {
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float: left;
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width: 110px;
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}
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.right {
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float: right;
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width: 110px;
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}
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.bottom {
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clear: both;
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text-align: center;
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}
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.item {
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margin: 4px;
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}
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.left .el-tooltip__popper,
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.right .el-tooltip__popper {
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padding: 8px 10px;
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}
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.el-button {
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width: 110px;
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}
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}
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</style>
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```
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:::
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### Theme
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Tooltip has two themes: `dark` and `light`。
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:::demo Set `effect` to modify theme, and the default value is `dark`.
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```html
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<el-tooltip content="Top center" placement="top">
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<el-button>Dark</el-button>
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</el-tooltip>
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<el-tooltip content="Bottom center" placement="bottom" effect="light">
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<el-button>Light</el-button>
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</el-tooltip>
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```
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:::
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### More Content
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Display multiple lines of text and set their format.
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:::demo Override attribute `content` of `el-tooltip` by adding a slot named `content`.
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```html
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<el-tooltip placement="top">
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<div slot="content">multiple lines<br/>second line</div>
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<el-button>Top center</el-button>
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</el-tooltip>
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```
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:::
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### Advanced usage
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In addition to basic usages, there are some attributes that allow you to customize your own:
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`transition` attribute allows you to customize the animation in which the tooltip shows or hides, and the default value is el-fade-in-linear.
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`disabled` attribute allows you to disable `tooltip`. You just need set it to `true`.
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In fact, Tooltip is an extension based on [Vue-popper](https://github.com/element-component/vue-popper), you can use any attribute that are allowed in Vue-popper.
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:::demo
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```html
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<template>
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<el-tooltip :disabled="disabled" content="click to close tooltip function" placement="bottom" effect="light">
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<el-button @click="disabled = !disabled">click to {{disabled ? 'active' : 'close'}} tooltip function</el-button>
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</el-tooltip>
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</template>
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<script>
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export default {
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data() {
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return {
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disabled: false
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};
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}
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};
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</script>
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<style>
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.slide-fade-enter-active {
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transition: all .3s ease;
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}
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.slide-fade-leave-active {
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transition: all .3s cubic-bezier(1.0, 0.5, 0.8, 1.0);
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}
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.slide-fade-enter, .expand-fade-leave-active {
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margin-left: 20px;
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opacity: 0;
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}
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</style>
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```
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:::
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:::tip
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The `router-link` component is not supported in tooltip, please use `vm.$router.push`.
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Disabled form elements are not supported for Tooltip, more information can be found at [MDN](https://developer.mozilla.org/en-US/docs/Web/Events/mouseenter). You need to wrap the disabled form element with a container element for Tooltip to work.
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:::
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### Attributes
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| Attribute | Description | Type | Accepted Values | Default |
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|----------------|---------|-----------|-------------|--------|
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| effect | Tooltip theme | string | dark/light | dark |
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| content | display content, can be overridden by `slot#content` | String | — | — |
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| placement | position of Tooltip | string | top/top-start/top-end/bottom/bottom-start/bottom-end/left/left-start/left-end/right/right-start/right-end | bottom |
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| value / v-model | visibility of Tooltip | boolean | — | false |
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| disabled | whether Tooltip is disabled | boolean | — | false |
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| offset | offset of the Tooltip | number | — | 0 |
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| transition | animation name | string | — | el-fade-in-linear |
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| visible-arrow | whether an arrow is displayed. For more information, check [Vue-popper](https://github.com/element-component/vue-popper) page | boolean | — | true |
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| popper-options | [popper.js](https://popper.js.org/documentation.html) parameters | Object | refer to [popper.js](https://popper.js.org/documentation.html) doc | `{ boundariesElement: 'body', gpuAcceleration: false }` |
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| open-delay | delay of appearance, in millisecond | number | — | 0 |
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| manual | whether to control Tooltip manually. `mouseenter` and `mouseleave` won't have effects if set to `true` | boolean | — | false |
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| popper-class | custom class name for Tooltip's popper | string | — | — |
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| enterable | whether the mouse can enter the tooltip | Boolean | — | true |
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| hide-after | timeout in milliseconds to hide tooltip | number | — | 0 |
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| tabindex | [tabindex](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/tabindex) of Tooltip | number | — | 0 |
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