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Add events and iOS compatibility #59

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Add events and iOS compatibility #59

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5c6899b
add onHide, onShow
Jan 23, 2018
9127137
Add events for when suggestions appear and when they disappear: onSho…
Jan 24, 2018
be2f2cd
Revert local optimization
Jan 24, 2018
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54 changes: 45 additions & 9 deletions auto-complete.js
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Original file line number Diff line number Diff line change
Expand Up @@ -8,11 +8,19 @@
var autoComplete = (function(){
// "use strict";
function autoComplete(options){
var is_scrolling = false;
if (!document.querySelector) return;

// helpers
function hasClass(el, className){ return el.classList ? el.classList.contains(className) : new RegExp('\\b'+ className+'\\b').test(el.className); }

function hideSuggestions(elementSuggestions) {
if (elementSuggestions.sc.style.display !== 'none') {
o.onHideSuggestions();
}
elementSuggestions.sc.style.display = 'none';
}

function addEvent(el, type, handler){
if (el.attachEvent) el.attachEvent('on'+type, handler); else el.addEventListener(type, handler);
}
Expand Down Expand Up @@ -43,6 +51,8 @@ var autoComplete = (function(){
var re = new RegExp("(" + search.split(' ').join('|') + ")", "gi");
return '<div class="autocomplete-suggestion" data-val="' + item + '">' + item.replace(re, "<b>$1</b>") + '</div>';
},
onShowSuggestions: function() {},
onHideSuggestions: function() {},
onSelect: function(e, term, item){}
};
for (var k in options) { if (options.hasOwnProperty(k)) o[k] = options[k]; }
Expand All @@ -67,6 +77,9 @@ var autoComplete = (function(){
that.sc.style.top = Math.round(rect.bottom + (window.pageYOffset || document.documentElement.scrollTop) + o.offsetTop) + 'px';
that.sc.style.width = Math.round(rect.right - rect.left) + 'px'; // outerWidth
if (!resize) {
if (that.sc.style.display !== 'block') {
o.onShowSuggestions();
}
that.sc.style.display = 'block';
if (!that.sc.maxHeight) { that.sc.maxHeight = parseInt((window.getComputedStyle ? getComputedStyle(that.sc, null) : that.sc.currentStyle).maxHeight); }
if (!that.sc.suggestionHeight) that.sc.suggestionHeight = that.sc.querySelector('.autocomplete-suggestion').offsetHeight;
Expand Down Expand Up @@ -100,16 +113,33 @@ var autoComplete = (function(){
var v = this.getAttribute('data-val');
that.value = v;
o.onSelect(e, v, this);
that.sc.style.display = 'none';
hideSuggestions(that);
}
}, that.sc);

live('autocomplete-suggestion', 'touchstart', function(e){
is_scrolling = false;
}, that.sc);

live('autocomplete-suggestion', 'touchmove', function(e){
is_scrolling = true;
}, that.sc);

live('autocomplete-suggestion', 'touchend', function(e){
if (!is_scrolling) {
var v = this.getAttribute('data-val');
that.value = v;
o.onSelect(e, v, this);
hideSuggestions(that);
}
}, that.sc);

that.blurHandler = function(){
try { var over_sb = document.querySelector('.autocomplete-suggestions:hover'); } catch(e){ var over_sb = 0; }
if (!over_sb) {
that.last_val = that.value;
that.sc.style.display = 'none';
setTimeout(function(){ that.sc.style.display = 'none'; }, 350); // hide suggestions on fast input
hideSuggestions(that);
setTimeout(function(){ hideSuggestions(that); }, 350); // hide suggestions on fast input
} else if (that !== document.activeElement) setTimeout(function(){ that.focus(); }, 20);
};
addEvent(that, 'blur', that.blurHandler);
Expand All @@ -123,8 +153,9 @@ var autoComplete = (function(){
that.sc.innerHTML = s;
that.updateSC(0);
}
else
that.sc.style.display = 'none';
else {
hideSuggestions(that);
}
}

that.keydownHandler = function(e){
Expand All @@ -149,11 +180,16 @@ var autoComplete = (function(){
return false;
}
// esc
else if (key == 27) { that.value = that.last_val; that.sc.style.display = 'none'; }
else if (key == 27) { that.value = that.last_val; hideSuggestions(that); }
// enter
else if (key == 13 || key == 9) {
var sel = that.sc.querySelector('.autocomplete-suggestion.selected');
if (sel && that.sc.style.display != 'none') { o.onSelect(e, sel.getAttribute('data-val'), sel); setTimeout(function(){ that.sc.style.display = 'none'; }, 20); }
if (sel && that.sc.style.display != 'none') {
o.onSelect(e, sel.getAttribute('data-val'), sel);
setTimeout(function(){
hideSuggestions(that);
}, 20);
}
}
};
addEvent(that, 'keydown', that.keydownHandler);
Expand All @@ -178,7 +214,7 @@ var autoComplete = (function(){
}
} else {
that.last_val = val;
that.sc.style.display = 'none';
hideSuggestions(that);
}
}
};
Expand Down Expand Up @@ -219,4 +255,4 @@ var autoComplete = (function(){
module.exports = autoComplete;
else
window.autoComplete = autoComplete;
})();
})();