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<script lang="ts">
import {defineComponent, PropType} from 'vue';
import SearchIcon from './icon/SearchIcon.vue';
import {LayoutNode} from '../layout';
import type {TolMap} from '../tol';
type SearchSugg = {name: string, altName: string}; // Represents a search string suggestion
type SearchSuggResponse = [SearchSugg[], boolean]; // Holds search suggestions and an indication of if there was more
// Displays a search box, and sends search requests
export default defineComponent({
data(){
return {
searchSuggs: [] as SearchSugg[],
searchHasMoreSuggs: false,
focusedSuggIdx: null as null | number, // Denotes a search-suggestion selected using the arrow keys
pendingSearchSuggReq: 0, // Set via setTimeout() upon a search-suggestion request
// Used to avoid sending many requests when search input is quickly changed multiple times
lastSuggReqId: 0, // Used to prevent late search-suggestion server-responses from taking effect
};
},
props: {
tolMap: {type: Object as PropType<TolMap>, required: true},
uiOpts: {type: Object, required: true},
},
methods: {
onCloseClick(evt: Event){
if (evt.target == this.$el || (this.$refs.searchIcon as typeof SearchIcon).$el.contains(evt.target)){
this.$emit('search-close');
}
},
onEnter(){
// Check for a focused search-suggestion
if (this.focusedSuggIdx != null){
this.resolveSearch(this.searchSuggs[this.focusedSuggIdx].name);
return;
}
// Get tol-node-name from server
let input = this.$refs.searchInput as HTMLInputElement;
let url = new URL(window.location.href);
url.pathname = '/data/search';
url.search = '?name=' + encodeURIComponent(input.value);
fetch(url.toString())
.then(response => response.json())
.then(results => {
if (results.length == 0){
input.value = '';
// Trigger failure animation
input.classList.remove('animate-red-then-fade');
input.offsetWidth; // Triggers reflow
input.classList.add('animate-red-then-fade');
} else {
this.resolveSearch(results[0].name)
}
})
.catch(error => {
console.log('ERROR getting search results from server', error);
});
},
resolveSearch(tolNodeName: string){
// Asks server for nodes in parent-chain, updates tolMap, then emits search event
let url = new URL(window.location.href);
url.pathname = '/data/chain';
url.search = '?name=' + encodeURIComponent(tolNodeName);
fetch(url.toString())
.then(response => response.json())
.then(obj => {
Object.getOwnPropertyNames(obj).forEach(key => {
if (!this.tolMap.has(key)){
this.tolMap.set(key, obj[key])
}
});
this.$emit('search-node', tolNodeName);
})
.catch(error => {
console.log('ERROR loading tolnode chain', error);
});
},
focusInput(){
(this.$refs.searchInput as HTMLInputElement).focus();
},
onInput(){
let input = this.$refs.searchInput as HTMLInputElement;
// Check for empty input
if (input.value.length == 0){
this.searchSuggs = [];
this.searchHasMoreSuggs = false;
this.focusedSuggIdx = null;
return;
}
// Clear any pending request
clearTimeout(this.pendingSearchSuggReq);
// Ask server for search-suggestions
let url = new URL(window.location.href);
url.pathname = '/data/search';
url.search = '?name=' + encodeURIComponent(input.value);
this.lastSuggReqId += 1;
let suggsId = this.lastSuggReqId;
this.pendingSearchSuggReq = setTimeout(() =>
fetch(url.toString())
.then(response => response.json())
.then((results: SearchSuggResponse) => {
if (this.lastSuggReqId == suggsId){
this.searchSuggs = results[0];
this.searchHasMoreSuggs = results[1];
this.focusedSuggIdx = null;
}
}),
300
);
},
onDownKey(){
// Select next search-suggestion, if any
if (this.searchSuggs.length > 0){
if (this.focusedSuggIdx == null){
this.focusedSuggIdx = 0;
} else {
this.focusedSuggIdx = Math.min(this.focusedSuggIdx + 1, this.searchSuggs.length - 1);
}
}
},
onUpKey(){
// Select previous search-suggestion, or cancel selection
if (this.focusedSuggIdx != null){
if (this.focusedSuggIdx == 0){
this.focusedSuggIdx = null;
} else {
this.focusedSuggIdx -= 1;
}
}
},
},
mounted(){
(this.$refs.searchInput as HTMLInputElement).focus();
},
components: {SearchIcon, },
emits: ['search-node', 'search-close', ],
});
</script>
<template>
<div class="fixed left-0 top-0 w-full h-full bg-black/40" @click="onCloseClick">
<div class="absolute left-1/2 -translate-x-1/2 top-1/2 -translate-y-1/2 p-2
bg-stone-50 rounded-md shadow shadow-black flex gap-1">
<div class="relative">
<input type="text" class="block border p-1" ref="searchInput"
@keyup.enter="onEnter" @keyup.esc="onCloseClick"
@input="onInput" @keydown.down.prevent="onDownKey" @keydown.up.prevent="onUpKey"/>
<div class="absolute top-[100%] w-full">
<div v-for="(sugg, idx) of searchSuggs"
:style="{backgroundColor: idx == focusedSuggIdx ? '#a3a3a3' : 'white'}"
class="bg-white border p-1 hover:underline hover:cursor-pointer"
@click="resolveSearch(sugg.name)">
{{sugg.name == sugg.altName ? sugg.name : `${sugg.altName} (aka ${sugg.name})`}}
</div>
<div v-if="searchHasMoreSuggs" class="bg-white px-1 text-center border">...</div>
</div>
</div>
<search-icon @click.stop="onEnter" ref="searchIcon"
class="block w-8 h-8 ml-1 hover:cursor-pointer hover:bg-stone-200" />
</div>
</div>
</template>
<style>
.animate-red-then-fade {
animation-name: red-then-fade;
animation-duration: 500ms;
animation-timing-function: ease-in;
}
@keyframes red-then-fade {
from {
background-color: rgba(255,0,0,0.2);
}
to {
background-color: transparent;
}
}
</style>
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