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Corrige ocorrência de múltiplas requisições ajax #32

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Nov 10, 2021
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22 changes: 10 additions & 12 deletions app/core/static/js/main.js
Original file line number Diff line number Diff line change
Expand Up @@ -19,18 +19,6 @@ function createMessage(msg, alert_class){
return divAlert;
}

function ingressPackageDownloadToggleSpinner(){
var btnSearchPackage = document.getElementById('btnSearchPackage');
var divSpinner = document.getElementById('searchPackageLoading');
if (divSpinner.style.display == "none") {
divSpinner.style.display = 'block';
btnSearchPackage.setAttribute('disabled', 'disabled');
} else {
divSpinner.style.display = 'none';
btnSearchPackage.removeAttribute('disabled');
}
}

function ingressPackageDownloadCreateTable(data){
tableBody = document.getElementById('resultSearchPackagesTableBody')

Expand Down Expand Up @@ -66,3 +54,13 @@ function ingressPackageDownloadCreateTable(data){
}
}
}

function showLoader(loader, button){
loader.style.display = 'block';
button.setAttribute('disabled', 'disabled');
}

function hideLoader(loader, button){
loader.style.display = 'none';
button.removeAttribute('disabled');
}
57 changes: 30 additions & 27 deletions app/core/templates/ingress/package_download.html
Original file line number Diff line number Diff line change
Expand Up @@ -22,11 +22,11 @@ <h1 class="h4 pt-5">{% trans 'Search package' %}</h1>
<label for="pid" class="form-label">{% trans 'Document identifier' %}</label>
<input required type="text" name="pid" autofocus id="pid" class="form-control" placeholder="{% trans 'Enter a document identifier' %}" value="{{ pid }}">
</div>
<button id="btnSearchPackage" type="submit" class="btn btn-primary">{% trans 'Search' %}</button>
<button id="buttonSearch" type="submit" class="btn btn-primary">{% trans 'Search' %}</button>
</form>
</div>
</div>
<div id='searchPackageLoading' style="display: none;" role="status">
<div id='divLoader' style="display: none;" role="status">
<div class="spinner-border text-primary">
<span class="sr-only">{% trans 'Loading' %}...</span>
</div>
Expand All @@ -52,39 +52,42 @@ <h2 class="h4">{% trans 'Results for document' %} <strong>{{ pid }}</strong></h2

</div>
<script type="text/javascript">
var xhr;
var checkStatus = '{{ check_status }}';
var intervals = {}
var loader = document.getElementById('divLoader');
var button = document.getElementById('buttonSearch');
var requested = false;
var timer;

function update(){
xhr = $.ajax({
url: '/task/update_status/?task_id={{ task_id }}',
type: 'GET',
success: function(result) {
divSpinner = document.createElement('div');
divSpinner.classList.add('spinner-border');
divSpinner.setAttribute('role', 'status');
function checkTaskStatus() {
if (!requested){
$.ajax({
url: '/task/update_status/?task_id={{ task_id }}',
type: 'GET',
success: function(result) {
// mostra loader e desativa botão pesquisar
showLoader(loader, button);

spanLoading = document.createElement('span');
spanLoading.classList.add('sr-only');
spanLoading.text = "{% trans 'Loading' %}...";
if (result.data && 'doc_pkgs' in result.data) {
// adiciona conteúdo à tabela
ingressPackageDownloadCreateTable(result.data);

divSpinner.appendChild(spanLoading);
// impede que requisições continuem sendo realizadas
requested = true;
window.clearTimeout(timer);

$('user-package-download-results').add(divSpinner);

if (result.data && 'doc_pkgs' in result.data) {
clearInterval(intervals[0]);
ingressPackageDownloadCreateTable(result.data);
ingressPackageDownloadToggleSpinner();
// remove loader e reativa botão pesquisar
hideLoader(loader, button);
}
}
}
});
});
}
}

if (checkStatus) {
intervals[0] = setInterval(update, 200);
ingressPackageDownloadToggleSpinner();
if(checkStatus){
checkTaskStatus();
var timer = setInterval(function(){
checkTaskStatus();
}, 2000);
}
</script>
{% endblock %}