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| -rw-r--r-- | wqflask/wqflask/static/new/javascript/search_autocomplete.js | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/wqflask/wqflask/static/new/javascript/search_autocomplete.js b/wqflask/wqflask/static/new/javascript/search_autocomplete.js new file mode 100644 index 00000000..a68dc655 --- /dev/null +++ b/wqflask/wqflask/static/new/javascript/search_autocomplete.js @@ -0,0 +1,154 @@ + //replace with gn search hints + function autocomplete(inp, arr) { + /*the autocomplete function takes two arguments, + the text field element and an array of possible autocompleted values:*/ + var currentFocus; + /*execute a function when someone writes in the text field:*/ + + inp.addEventListener("focus", function(e) { + var a, b, i, val = this.value; + closeAllLists(); + currentFocus = -1; + a = document.createElement("DIV"); + a.setAttribute("id", this.id + "autocomplete-list"); + a.setAttribute("class", "autocomplete-items"); + this.parentNode.appendChild(a); + let historySearch = retrieveSearchHistory().splice(0, 5) + let text_title = document.createElement("DIV") + text_title.innerHTML = "<strong>RECENT SEARCH</strong><input type='button' value='close_all'>"; + text_title.setAttribute("class", "recent-search-title") + text_title.setAttribute('disabled', true); + a.appendChild(text_title); + for (i = 0; i < historySearch.length; i++) { + b = document.createElement("DIV"); + b.innerHTML = "<span>" + historySearch[i].substr(0, val.length) + "</span>"; + b.style.color = "blue"; + b.innerHTML += historySearch[i].substr(val.length); + b.innerHTML += "<input type='hidden' value='" + historySearch[i] + "'>"; + b.addEventListener("click", function(e) { + inp.value = this.getElementsByTagName("input")[0].value; + closeAllLists(); + }); + a.appendChild(b); + + } + }); + + + + inp.addEventListener("input", function(e) { + var a, b, i, val = this.value; + /*close any already open lists of autocompleted values*/ + closeAllLists(); + if (!val) { return false; } + currentFocus = -1; + /*create a DIV element that will contain the items (values):*/ + a = document.createElement("DIV"); + a.setAttribute("id", this.id + "autocomplete-list"); + a.setAttribute("class", "autocomplete-items"); + /*append the DIV element as a child of the autocomplete container:*/ + this.parentNode.appendChild(a); + /*for each item in the array...*/ + for (i = 0; i < arr.length; i++) { + /*check if the item starts with the same letters as the text field value:*/ + if (arr[i].substr(0, val.length).toUpperCase() == val.toUpperCase()) { + /*create a DIV element for each matching element:*/ + b = document.createElement("DIV"); + /*make the matching letters bold:*/ + b.innerHTML = "<strong>" + arr[i].substr(0, val.length) + "</strong>"; + b.innerHTML += arr[i].substr(val.length); + /*insert a input field that will hold the current array item's value:*/ + b.innerHTML += "<input type='hidden' value='" + arr[i] + "'>"; + /*execute a function when someone clicks on the item value (DIV element):*/ + b.addEventListener("click", function(e) { + /*insert the value for the autocomplete text field:*/ + inp.value = this.getElementsByTagName("input")[0].value; + /*close the list of autocompleted values, + (or any other open lists of autocompleted values:*/ + closeAllLists(); + }); + a.appendChild(b); + } + } + }); + /*execute a function presses a key on the keyboard:*/ + inp.addEventListener("keydown", function(e) { + var x = document.getElementById(this.id + "autocomplete-list"); + if (x) x = x.getElementsByTagName("div"); + if (e.keyCode == 40) { + /*If the arrow DOWN key is pressed, + increase the currentFocus variable:*/ + currentFocus++; + /*and and make the current item more visible:*/ + addActive(x); + } else if (e.keyCode == 38) { //up + /*If the arrow UP key is pressed, + decrease the currentFocus variable:*/ + currentFocus--; + /*and and make the current item more visible:*/ + addActive(x); + } else if (e.keyCode == 13) { + /*If the ENTER key is pressed, prevent the form from being submitted,*/ + e.preventDefault(); + if (currentFocus > -1) { + /*and simulate a click on the "active" item:*/ + if (x) x[currentFocus].click(); + } + } + }); + + function addActive(x) { + /*a function to classify an item as "active":*/ + if (!x) return false; + /*start by removing the "active" class on all items:*/ + removeActive(x); + if (currentFocus >= x.length) currentFocus = 0; + if (currentFocus < 0) currentFocus = (x.length - 1); + /*add class "autocomplete-active":*/ + x[currentFocus].classList.add("autocomplete-active"); + } + + function removeActive(x) { + /*a function to remove the "active" class from all autocomplete items:*/ + for (var i = 0; i < x.length; i++) { + x[i].classList.remove("autocomplete-active"); + } + } + + function closeAllLists(elmnt) { + /*close all autocomplete lists in the document, + except the one passed as an argument:*/ + var x = document.getElementsByClassName("autocomplete-items"); + for (var i = 0; i < x.length; i++) { + if (elmnt != x[i] && elmnt != inp) { + x[i].parentNode.removeChild(x[i]); + } + } + } + + + + /*execute a function when someone clicks in the document:*/ + document.addEventListener("click", function(e) { + closeAllLists(e.target); + }) + + } + + function retrieveSearchHistory() { + let results = JSON.parse(localStorage.getItem("gn_search_history")) + return results ? results : [] + } + + + + + + function saveBeforeSubmit(new_search) { + + let search = retrieveSearchHistory() + search.unshift(new_search) + + localStorage.setItem("gn_search_history", JSON.stringify([...new Set(search)])) + + }
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