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Use url query string to store item search queries

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This commit is contained in:
phantamanta44 2021-01-29 13:36:17 -06:00
parent 8fc374e4c0
commit 60451e8f78
1 changed files with 35 additions and 7 deletions
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42
items.js
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@ -7,10 +7,14 @@ class ExprField {
this.output = null;
this.text = null;
}
get value() {
return this.field.value;
}
compile() {
if (this.field.value === this.text) return;
this.text = this.field.value;
if (this.value === this.text) return false;
this.text = this.value;
this.errorText.innerText = '';
try {
this.output = this.compiler(this.text);
@ -18,6 +22,7 @@ class ExprField {
this.errorText.innerText = e.message;
this.output = null;
}
return true;
}
}
@ -89,10 +94,14 @@ function init() {
itemListFooter.innerText = '';
for (const itemEntry of itemEntries) itemEntry.style.display = 'none';
// compile query expressions, aborting if either fails to compile
searchFilterField.compile();
searchSortField.compile();
if (searchFilterField.output === null || searchSortField.output === null) return;
// compile query expressions, aborting if nothing has changed or either fails to compile
const changed = searchFilterField.compile() | searchSortField.compile();
if (!changed || searchFilterField.output === null || searchSortField.output === null) return;
// update url query string
const newUrl = `${window.location.protocol}//${window.location.host}${window.location.pathname}`
+ `?f=${encodeURIComponent(searchFilterField.value)}&s=${encodeURIComponent(searchSortField.value)}`;
window.history.pushState({ path: newUrl }, '', newUrl);
// index and sort search results
const searchResults = [];
@ -158,8 +167,27 @@ function init() {
searchFilterField.field.addEventListener('input', e => scheduleSearchUpdate());
searchSortField.field.addEventListener('input', e => scheduleSearchUpdate());
// display initial items and focus the filter field
// parse query string, display initial search results
if (window.location.search.startsWith('?')) {
for (const entryStr of window.location.search.substring(1).split('&')) {
const ndx = entryStr.indexOf('=');
if (ndx !== -1) {
console.log(entryStr.substring(0, ndx));
console.log(entryStr.substring(ndx + 1));
switch (entryStr.substring(0, ndx)) {
case 'f':
searchFilterField.field.value = decodeURIComponent(entryStr.substring(ndx + 1));
break;
case 's':
searchSortField.field.value = decodeURIComponent(entryStr.substring(ndx + 1));
break;
}
}
}
}
updateSearch();
// focus the query filter text box
searchFilterField.field.focus();
searchFilterField.field.select();
}