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<script>
import { GlTooltipDirective, GlResizeObserverDirective } from '@gitlab/ui';
import { isFunction, debounce } from 'lodash';
import { hasHorizontalOverflow } from '~/lib/utils/dom_utils';
const UPDATE_TOOLTIP_DEBOUNCED_WAIT_MS = 300;
export default {
directives: {
GlTooltip: GlTooltipDirective,
GlResizeObserver: GlResizeObserverDirective,
},
props: {
title: {
type: String,
required: false,
default: '',
},
placement: {
type: String,
required: false,
default: 'top',
},
boundary: {
type: String,
required: false,
default: '',
},
truncateTarget: {
type: [String, Function],
required: false,
default: '',
},
},
data() {
return {
tooltipDisabled: true,
};
},
computed: {
classes() {
if (this.tooltipDisabled) {
return '';
}
return 'js-show-tooltip';
},
tooltip() {
return {
title: this.title,
placement: this.placement,
disabled: this.tooltipDisabled,
// Only set the tooltip boundary if it's truthy
...(this.boundary && { boundary: this.boundary }),
};
},
},
watch: {
title() {
// Wait on $nextTick in case the slot width changes
this.$nextTick(this.updateTooltip);
},
},
created() {
this.updateTooltipDebounced = debounce(this.updateTooltip, UPDATE_TOOLTIP_DEBOUNCED_WAIT_MS);
},
mounted() {
this.updateTooltip();
},
methods: {
selectTarget() {
if (isFunction(this.truncateTarget)) {
return this.truncateTarget(this.$el);
}
if (this.truncateTarget === 'child') {
return this.$el.childNodes[0];
}
return this.$el;
},
updateTooltip() {
this.tooltipDisabled = !hasHorizontalOverflow(this.selectTarget());
},
onResize() {
this.updateTooltipDebounced();
},
},
};
</script>
<template>
<span v-gl-tooltip="tooltip" v-gl-resize-observer="onResize" :class="classes" class="gl-min-w-0">
<slot></slot>
</span>
</template>
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