Add tooltip component

resources/components/departures/departure.html

@@ -6,7 +6,8 @@
         </div>
 
         <div class="departure__time">
-            <fa-layers v-if="!departure.estimated" class="mr-1" title="Czas rozkładowy, nieuwzględniający aktualnej sytuacji komunikacyjnej.">
+            <fa-layers v-if="!departure.estimated" class="mr-1">
+                <tooltip placement="top-end">Czas rozkładowy, nieuwzględniający aktualnej sytuacji komunikacyjnej.</tooltip>
                 <fa :icon="['far', 'clock']"/>
                 <fa :icon="['fas', 'exclamation-triangle']" transform="shrink-5 down-4 right-6"/>
             </fa-layers>

resources/components/popper.html

@@ -1,4 +1,4 @@
-<div class="popper" :class="{ 'popper--arrow': arrow }" v-on="$listeners">
+<div :class="[ 'popper', arrow && 'popper--arrow' ]" v-on="$listeners">
     <div class="popper__arrow" ref="arrow" v-if="arrow"></div>
     <slot />
 </div>

resources/components/tooltip.html

@@ -0,0 +1,5 @@
+<portal to="popups">
+    <popper class="popper--tooltip" arrow :reference="element" :placement="placement" v-if="show">
+        <slot />
+    </popper>
+</portal>

resources/styles/_popper.scss

@@ -108,12 +108,38 @@
     }
   }
 
-  &.popper--arrow {
+  @mixin arrows {
     @include placement("left");
     @include placement("right");
     @include placement("top");
     @include placement("bottom");
   }
+
+  &.popper--arrow {
+    @include arrows;
+  }
+
+  &.popper--tooltip {
+    background: $dark;
+    color: white;
+    padding: .5rem .75rem;
+    font-size: $small-font-size;
+    font-weight: bold;
+    min-width: 0;
+    box-shadow: none;
+
+    &.popper--arrow {
+      $arrow-color: $dark;
+      $arrow-border: none;
+      $arrow-base: 6px;
+
+      @include arrows;
+
+      .popper__arrow::before {
+        border: none;
+      }
+    }
+  }
 }
 
 @include media-breakpoint-down('sm') {

resources/ts/components/index.ts

@@ -1,3 +1,4 @@
+export * from './tooltip';
 export * from './utils'
 export * from './line'
 export * from './picker'

resources/ts/components/tooltip.ts

@@ -0,0 +1,26 @@
+import Vue from 'vue';
+import Component from "vue-class-component";
+import { Prop } from "vue-property-decorator";
+
+@Component({ template: require('../../components/tooltip.html') })
+export class TooltipComponent extends Vue {
+    @Prop({ type: String, default: "auto" }) public placement: string;
+    public show: boolean = false;
+    public element: Element = null;
+
+    private _events: { [event: string]: any };
+
+    mounted() {
+        this.$el.parentElement.addEventListener('mouseenter', this._events['mouseenter'] = () => this.show = true);
+        this.$el.parentElement.addEventListener('mouseleave', this._events['mouseleave'] = () => this.show = false);
+
+        this.element = this.$el.parentElement;
+    }
+
+    beforeDestroy() {
+        this.$el.parentElement.removeEventListener('mouseenter', this._events['mouseenter']);
+        this.$el.parentElement.removeEventListener('mouseleave', this._events['mouseleave']);
+    }
+}
+
+Vue.component('Tooltip', TooltipComponent);

resources/ts/components/utils.ts

@@ -7,8 +7,8 @@ import { Portal } from "portal-vue";
     template: require("../../components/popper.html")
 })
 export class PopperComponent extends Vue {
-    @Prop(String)
-    public reference: string;
+    @Prop([ String, HTMLElement ])
+    public reference: string | HTMLElement;
 
     @Prop(Object)
     public refs: string;
@@ -22,6 +22,28 @@ export class PopperComponent extends Vue {
     private _event;
     private _popper;
 
+    private getReferenceElement() {
+        const isInPortal = this.$parent.$options.name == 'portalTarget';
+
+        if (typeof this.reference === 'string') {
+            if (this.refs) {
+                return this.refs[this.reference];
+            }
+
+            if (isInPortal) {
+                return this.$parent.$parent.$refs[this.reference];
+            }
+
+            return this.$parent.$refs[this.reference];
+        }
+
+        if (this.reference instanceof HTMLElement) {
+            return this.reference;
+        }
+
+        return isInPortal ? this.$parent.$el : this.$el.parentElement;
+    }
+
     focusOut(event: MouseEvent) {
         if (this.$el.contains(event.target as Node)) {
             return;
@@ -31,7 +53,7 @@ export class PopperComponent extends Vue {
     }
 
     mounted() {
-        const reference = this.refsSource[this.reference] as HTMLElement;
+        const reference = this.getReferenceElement();
 
         this._popper = new Popper(reference, this.$el, {
             placement: this.placement,
@@ -76,18 +98,6 @@ export class PopperComponent extends Vue {
         this._popper.destroy();
         this._event && document.removeEventListener('click', this._event, { capture: true });
     }
-
-    get refsSource() {
-        if (this.refs) {
-            return this.refs;
-        }
-
-        if (this.$parent.$options.name == 'portalTarget') {
-            return this.$parent.$parent.$refs;
-        }
-
-        return this.$parent.$refs
-    }
 }
 
 @Component({ template: require('../../components/fold.html') })