Implementing a highlight feature for a live search in JavaScript/JQuery - javascript

I'm trying to implement a highlighting feature for a livesearch.
What I do is, send an ajax request with an token the user looks for. I receive an html text containing a table.
So I thought I could use a simple regex, looking for the users token and then surround it with a span, but I am receiving some longfilled <a> - Tags, so chances are good that the user types something and I break my HTML by replacing something inside a tag.
So how can I exclude html tags in my search?
Oh I'm using javascript regexp.


You would need to load jQuery highlight plugin and then you can just do something like this:
var words = "keyword1,keyword2,keyword3";
var keywords = words.split(',');
for(var i = 0; i < keywords.length; i++) {
$(selector).highlight($.trim(keywords[i]));
}
If you wanna do highlighting in the entire page, then replace selector with 'body', otherwise use selector for desired element.


//These results to be highlighted
var results = [];
results[0] = 'jquery';
results[1] = 'json';
results[2] = 'Java Script';
results[3] = 'java';
results[4] = 'java Update';
results[5] = 'javelin';
results[6] = 'James';
results[7] = 'jacob';
results[8] = 'Jail';
results[9] = 'Jailor';
jQuery(document).ready(function(){
//Search the results
jQuery('#search').live('keyup', function(event){
var term = jQuery(this).val();//keyword to be matched
var htm = '';
//Keys with codes 40 and below are special (enter, arrow keys, escape, etc.), Key code 8 is backspace.
if(event.keyCode > 40 || event.keyCode <91 || event.keyCode == 8 ||
event.keyCode == 20 || event.keyCode == 16 || event.keyCode == 9 ||
event.keyCode == 37 || event.keyCode == 38 || event.keyCode == 39 ||
event.keyCode == 40) {
for(x in results){
var match = results[x];
if(match.toLowerCase().indexOf(term.toLowerCase()) != -1){
var o = '<b><u>'+term+'</u></b>';
var a = match.replace(term, o);
htm += '<li>'+a+'</li>';
}
}
//create a orderd list for the matched results
var output = '<ol>' + htm + '</ol>';
if (htm.length > 0) {
jQuery('#result').show().append(output);
}
}
});
});
The complete tutorial can be found here: http://www.webspeaks.in/2012/09/live-text-search-highlight-using.html


Not sure how well the jQuery plugin works, here is the script I came up with but doesn't highlight text over multiple tags.
If I want to highlight "my script" and the html looks like "my script" then it would not be highlighted. Still working on that part.
Here is the script so far:
str='<img src="brown fox.jpg" title="The brown fox" />'
+'<p>some text containing fox. And onother fox.</p>'
var word="fox";
word="(\\b"+
word.replace(/([{}()[\]\\.?*+^$|=!:~-])/g, "\\$1")
+ "\\b)";
var r = new RegExp(word,"igm")
str.replace(/(>[^<]+)/igm,function(a){
return a.replace(r,"<span class='hl'>$1</span>");
})

Related

How do I launch a site on Chrome/Firefox by pressing a key or preferably 2 keys

I have this keyboard site launcher script, which I copied from some place years ago and it works fine as is. I want to enhance it by adding a cascading keypress launch for some of the keys. Here is my code:
<html><head>
<script language="JavaScript">
<!-- Begin
var key = new Array();
key['a'] = "https://www.arstechnica.com";
key['g'] = "https://www.google.com";
key['s'] = "https://slashdot.org";
key['y'] = "http://www.yahoo.com";
function getKey(keyStroke) {
isNetscape=(document.layers);
eventChooser = (isNetscape) ? keyStroke.which : event.keyCode;
which = String.fromCharCode(eventChooser).toLowerCase();
// alert('['+which+'] key \n has been stroke');
runUrl(which);
}
function runUrl(which) {
for (var i in key)
if (which == i) {window.location = key[i];}
}
document.onkeypress = getKey;
// End -->
</script></head>
<body>
Make a selection<br>
<br>
key['a'] = "https://www.arstechnica.com";
key['g'] = "https://www.google.com";
key['s'] = "https://slashdot.org";
key['y'] = "http://www.yahoo.com";
<br>
<br>
<!-- I solemnly swear this page is coded with vi or notepad.exe depending on the OS being used -->
</body>
</html>
Now, I want to modify the action for pressing the letter "s" to launch a submenu of sorts and ask me to select if I want to go to "Slashdot" or Spotify" for instance. like if I press an "s" second time, it goes to slashdot and if I press "f" for instance, it goes to spotify.
My problem is, I have never programmed in Javascript other than copying and pasting code and changing string values in the code, like here, changing the pressed keys and site URLs.
Any pointers, regarding how to start modifying this code, are greatly appreciated.

to be honest, the code provided is a bit outdated but I keep it so you can see the necessary changes that I made for the menu to be added and to implement the feature it's just a sketch but I will do the job I think from here you can expand, hope this puts you in the right direction
let isopenMenu = true;
const menu = document.getElementById("menu");
function toggleMenu() {
isopenMenu = !isopenMenu;
menu.style.display = isopenMenu ? "block" : "none";
}
var key = new Array();
key["a"] = "https://www.arstechnica.com";
key["g"] = "https://www.google.com";
key["s"] = "https://slashdot.org";
key["y"] = "http://www.yahoo.com";
key["b"] = "http://www.stackoverflow.com";
key["c"] = "http://www.test.com";
const menuSite = ["b", "c", "s"];
function getKey(keyStroke) {
isNetscape = document.layers;
eventChooser = isNetscape ? keyStroke.which : event.keyCode;
which = String.fromCharCode(eventChooser).toLowerCase();
runUrl(which);
}
function runUrl(which) {
for (var i in key)
if (which == i) {
if (which === "s") {
return toggleMenu();
}
if (!isopenMenu && menuSite.includes(which)) {
return;
}
window.location = key[i];
}
}
document.onkeypress = getKey;
window.addEventListener("load", toggleMenu);
<html><head>
<script language="JavaScript">
</script></head>
<body>
Make a selection<br>
<br>
key['a'] = "https://www.arstechnica.com";
key['g'] = "https://www.google.com";
key['s'] = "to toggel menu
key['y'] = "http://www.yahoo.com";
<br>
<br>
<ul id="menu">
<li>key['b'] = "http://www.stackoverflow.com";</li>
<li>key['c'] = "http://www.test.com</li>
</ul>
</body>
</html>

Indeed the code you've provided seems a bit dusted. There's some stuff that isn't done in that way nowadays. Notepad is an editor I still occassionally use though.
Since you've mentioned that you never really used JavaScript it's a bit hard to give you advice. You can do things way more elegant and even improve the look - but I'd say this would just confuse you even more. So let's work on something based on your code.
At the moment the keys and the corresponding targets are stored in an object (yeah, it's an object not an array). We can use a second object - let' say subKey - to store the additional targets upon pressing s.
var key = {};
key.a = "https://www.arstechnica.com";
key.g = "https://www.google.com";
key.s = "subMenu";
key.y = "http://www.yahoo.com";
var subKey = {};
subKey.a = "https://www.stackoverflow.com";
subKey.g = "https://www.startpage.com";
subKey.s = "goBack";
As you can see I've reserved the key s to go to the sub menu and inside the sub menu this button is used to go back to the main menu.
Now instead of hardcoding what the user gets to see on screen, we can iterate over those objects and use the information from there. To do this we need to reserve a html element - I've chosen an empty <div> which acts as some sort of container. As we iterate over the object we construct a string with the keys and it's associated targets and ultimately assign this this to the div's .innerHTML property.
let container = document.getElementById("container");
container.innerHTML = "Make a selection<br><br>";
for (var i in obj) {
container.innerHTML += "key['" + i + "'] = " + obj[i] + "<br>";
}
As the procedure is the same for both objects we just need to wrap it inside a function and pass it a reference to the desired object.
Your runUrl function needs to be modified a bit to take care of the additional options. This is best done with a simple if-else construct. So in pseudo-code:
if choice is subMenu open sub menu
if choice is goBack open main menu
if it's none of the above open a link
If we put everything together, your example looks a little bit like this:
(Just click on 'Run code snippet' and make sure to click somewhere inside the window so it'll have key focus)
<html>
<head>
</head>
<body>
<div id="container">
</div>
</body>
<script type="text/javascript">
var key = {};
key.a = "https://www.arstechnica.com";
key.g = "https://www.google.com";
key.s = "subMenu";
key.y = "http://www.yahoo.com";
var subKey = {};
subKey.a = "https://www.stackoverflow.com";
subKey.g = "https://www.startpage.com";
subKey.s = "goBack";
var currentObj = key;
function getKey(event) {
let which = String.fromCharCode(event.keyCode).toLowerCase();
runUrl(which)
}
function runUrl(which) {
for (var i in currentObj) {
if (which == i) {
if (currentObj[i] != "subMenu") {
if (currentObj[i] != "goBack") {
window.location = currentObj[i];
} else {
populateMenu(key);
}
} else {
populateMenu(subKey);
}
}
}
}
function populateMenu(obj) {
currentObj = obj;
let container = document.getElementById("container");
container.innerHTML = "Make a selection<br><br>";
for (var i in obj) {
container.innerHTML += "key['" + i + "'] = " + obj[i] + "<br>";
}
}
populateMenu(key);
document.onkeypress = getKey;
</script>
</html>

It looks like could achieve this with arbitrary list of sites. If so, you could handle this a little more generically by providing a list of sites and filtering the sites based on keystrokes.
If so, you can achieve it with the following:
const sites = [
'https://www.arstechnica.com',
'https://www.google.com',
'https://mail.google.com',
'https://slashdot.org',
'https://spotify.com',
'http://www.yahoo.com',
];
let matches = sites;
document.getElementById('keys').addEventListener('keyup', event => {
const keys = event.target.value.toLowerCase().split('');
matches = sites
.map(site => ({ site, stripped: site.replace(/^https?:\/\/(www\.)?/i, '')})) // strip out https://wwww. prefix
.filter(site => isMatch(site.stripped, keys))
.map(site => site.site);
if (event.keyCode === 13) {
if (matches.length === 0) {
alert('No matches');
} else if (matches.length === 1) {
alert(`launching ${matches[0]}`);
} else {
alert('More than one match found');
}
matches = sites;
}
document.getElementById('matches').textContent = matches.join(', ');
});
// find sites matching keys
function isMatch(site, keys) {
if (keys.length === 0) return true;
if (site.indexOf(keys[0]) !== 0) return false;
let startIndex = 1;
for (let i = 1; i < keys.length; i++) {
let index = site.indexOf(keys[i], startIndex);
if (index === -1) return false;
startIndex = index + 1;
}
return true;
}
document.getElementById('matches').textContent = matches.join(', ');
<div>Keys: <input type="text" id="keys" autocomplete="off" /> press Enter to launch.</div>
<p>Matches: <span id="matches" /></p>
The key parts to this are:
Define a list of sites you want to handle
Ignore the the https://wwww prefixes which is achieved with site.replace(/^https?:\/\/(www\.)?/i, '')
Implement filter logic (in this case it is the isMatch method) which tries to match multiple keystrokes
For demonstration purposes, I've wired keyup to an input field instead of document so that you can see it in action, and the action is triggered with the enter/return key.

How to Prevent Spaces to Be Counted as Characters?

I've got a search box and works quite good actually. What it does is that you type something and if it already exists, it shows you the topic. If not, it sends you to page that you can open this topic. When you type "ABC" or "A BC", it's okay but when you try to type "AB" and then try to search, it gives you an error that you need to type at least 3 characters, which is good. But it can be easily done like ("a space space" - counts 3). You may open topics with spaces, sure, but don't want that spaces to be counted. Such as, (hello world) It should be counted as 10 characters, not 11. How to exclude spaces to be counted as characters? It's a project I'm working on to make it better, I have not written all by myself.
Here are my search box's all javascript files which I probably need to edit but don't know how:
<script type="text/javascript">
function formatText(tag) {
var Field = document.getElementById('entry_girdi');
var val = Field.value;
var selected_txt = val.substring(Field.selectionStart, Field.selectionEnd);
var before_txt = val.substring(0, Field.selectionStart);
var after_txt = val.substring(Field.selectionEnd, val.length);
Field.value += '[' + tag + '/]';
}
</script>
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h,i,j=d.itemHash[e];h=c.every(f,function(a){return~c.indexOf(a,e)}),i=h&&c.every(a,function(a){return c.some(j.tokens,function(b){return 0===b.indexOf(a)})}),i&&g.push(j)}),g)},initialize:function(){var b;return this.local&&this._processLocalData(this.local),this.transport=this.remote?new h(this.remote):null,b=this.prefetch?this._loadPrefetchData(this.prefetch):a.Deferred().resolve(),this.local=this.prefetch=this.remote=null,this.initialize=function(){return b},b},getSuggestions:function(a,b){function d(a){f=f.slice(0),c.each(a,function(a,b){var d,e=g._transformDatum(b);return d=c.some(f,function(a){return e.value===a.value}),!d&&f.push(e),f.length<g.limit}),b&&b(f)}var e,f,g=this,h=!1;a.length<this.minLength||(e=c.tokenizeQuery(a),f=this._getLocalSuggestions(e).slice(0,this.limit),f.length<this.limit&&this.transport&&(h=this.transport.get(a,d)),!h&&b&&b(f))}}),d}(),j=function(){function b(b){var d=this;c.bindAll(this),this.specialKeyCodeMap={9:"tab",27:"esc",37:"left",39:"right",13:"enter",38:"up",40:"down"},this.$hint=a(b.hint),this.$input=a(b.input).on("blur.tt",this._handleBlur).on("focus.tt",this._handleFocus).on("keydown.tt",this._handleSpecialKeyEvent),c.isMsie()?this.$input.on("keydown.tt keypress.tt cut.tt paste.tt",function(a){d.specialKeyCodeMap[a.which||a.keyCode]||c.defer(d._compareQueryToInputValue)}):this.$input.on("input.tt",this._compareQueryToInputValue),this.query=this.$input.val(),this.$overflowHelper=e(this.$input)}function e(b){return a("<span></span>").css({position:"absolute",left:"-9999px",visibility:"hidden",whiteSpace:"nowrap",fontFamily:b.css("font-family"),fontSize:b.css("font-size"),fontStyle:b.css("font-style"),fontVariant:b.css("font-variant"),fontWeight:b.css("font-weight"),wordSpacing:b.css("word-spacing"),letterSpacing:b.css("letter-spacing"),textIndent:b.css("text-indent"),textRendering:b.css("text-rendering"),textTransform:b.css("text-transform")}).insertAfter(b)}function f(a,b){return a=(a||"").replace(/^\s*/g,"").replace(/\s{2,}/g," "),b=(b||"").replace(/^\s*/g,"").replace(/\s{2,}/g," "),a===b}return c.mixin(b.prototype,d,{_handleFocus:function(){this.trigger("focused")},_handleBlur:function(){this.trigger("blured")},_handleSpecialKeyEvent:function(a){var b=this.specialKeyCodeMap[a.which||a.keyCode];b&&this.trigger(b+"Keyed",a)},_compareQueryToInputValue:function(){var a=this.getInputValue(),b=f(this.query,a),c=b?this.query.length!==a.length:!1;c?this.trigger("whitespaceChanged",{value:this.query}):b||this.trigger("queryChanged",{value:this.query=a})},destroy:function(){this.$hint.off(".tt"),this.$input.off(".tt"),this.$hint=this.$input=this.$overflowHelper=null},focus:function(){this.$input.focus()},blur:function(){this.$input.blur()},getQuery:function(){return this.query},setQuery:function(a){this.query=a},getInputValue:function(){return this.$input.val()},setInputValue:function(a,b){this.$input.val(a),!b&&this._compareQueryToInputValue()},getHintValue:function(){return this.$hint.val()},setHintValue:function(a){this.$hint.val(a)},getLanguageDirection:function(){return(this.$input.css("direction")||"ltr").toLowerCase()},isOverflow:function(){return this.$overflowHelper.text(this.getInputValue()),this.$overflowHelper.width()>this.$input.width()},isCursorAtEnd:function(){var a,b=this.$input.val().length,d=this.$input[0].selectionStart;return c.isNumber(d)?d===b:document.selection?(a=document.selection.createRange(),a.moveStart("character",-b),b===a.text.length):!0}}),b}(),k=function(){function b(b){c.bindAll(this),this.isOpen=!1,this.isEmpty=!0,this.isMouseOverDropdown=!1,this.$menu=a(b.menu).on("mouseenter.tt",this._handleMouseenter).on("mouseleave.tt",this._handleMouseleave).on("click.tt",".tt-suggestion",this._handleSelection).on("mouseover.tt",".tt-suggestion",this._handleMouseover)}function e(a){return a.data("suggestion")}var f={suggestionsList:'<span class="tt-suggestions"></span>'},g={suggestionsList:{display:"block"},suggestion:{whiteSpace:"nowrap",cursor:"pointer"},suggestionChild:{whiteSpace:"normal"}};return c.mixin(b.prototype,d,{_handleMouseenter:function(){this.isMouseOverDropdown=!0},_handleMouseleave:function(){this.isMouseOverDropdown=!1},_handleMouseover:function(b){var c=a(b.currentTarget);this._getSuggestions().removeClass("tt-is-under-cursor"),c.addClass("tt-is-under-cursor")},_handleSelection:function(b){var c=a(b.currentTarget);this.trigger("suggestionSelected",e(c))},_show:function(){this.$menu.css("display","block")},_hide:function(){this.$menu.hide()},_moveCursor:function(a){var b,c,d,f;if(this.isVisible()){if(b=this._getSuggestions(),c=b.filter(".tt-is-under-cursor"),c.removeClass("tt-is-under-cursor"),d=b.index(c)+a,d=(d+1)%(b.length+1)-1,-1===d)return this.trigger("cursorRemoved"),void 0;-1>d&&(d=b.length-1),f=b.eq(d).addClass("tt-is-under-cursor"),this._ensureVisibility(f),this.trigger("cursorMoved",e(f))}},_getSuggestions:function(){return this.$menu.find(".tt-suggestions > .tt-suggestion")},_ensureVisibility:function(a){var b=this.$menu.height()+parseInt(this.$menu.css("paddingTop"),10)+parseInt(this.$menu.css("paddingBottom"),10),c=this.$menu.scrollTop(),d=a.position().top,e=d+a.outerHeight(!0);0>d?this.$menu.scrollTop(c+d):e>b&&this.$menu.scrollTop(c+(e-b))},destroy:function(){this.$menu.off(".tt"),this.$menu=null},isVisible:function(){return this.isOpen&&!this.isEmpty},closeUnlessMouseIsOverDropdown:function(){this.isMouseOverDropdown||this.close()},close:function(){this.isOpen&&(this.isOpen=!1,this.isMouseOverDropdown=!1,this._hide(),this.$menu.find(".tt-suggestions > .tt-suggestion").removeClass("tt-is-under-cursor"),this.trigger("closed"))},open:function(){this.isOpen||(this.isOpen=!0,!this.isEmpty&&this._show(),this.trigger("opened"))},setLanguageDirection:function(a){var b={left:"0",right:"auto"},c={left:"auto",right:" 0"};"ltr"===a?this.$menu.css(b):this.$menu.css(c)},moveCursorUp:function(){this._moveCursor(-1)},moveCursorDown:function(){this._moveCursor(1)},getSuggestionUnderCursor:function(){var a=this._getSuggestions().filter(".tt-is-under-cursor").first();return a.length>0?e(a):null},getFirstSuggestion:function(){var a=this._getSuggestions().first();return a.length>0?e(a):null},renderSuggestions:function(b,d){var e,h,i,j,k,l="tt-dataset-"+b.name,m='<div class="tt-suggestion">%body</div>',n=this.$menu.find("."+l);0===n.length&&(h=a(f.suggestionsList).css(g.suggestionsList),n=a("<div></div>").addClass(l).append(b.header).append(h).append(b.footer).appendTo(this.$menu)),d.length>0?(this.isEmpty=!1,this.isOpen&&this._show(),i=document.createElement("div"),j=document.createDocumentFragment(),c.each(d,function(c,d){d.dataset=b.name,e=b.template(d.datum),i.innerHTML=m.replace("%body",e),k=a(i.firstChild).css(g.suggestion).data("suggestion",d),k.children().each(function(){a(this).css(g.suggestionChild)}),j.appendChild(k[0])}),n.show().find(".tt-suggestions").html(j)):this.clearSuggestions(b.name),this.trigger("suggestionsRendered")},clearSuggestions:function(a){var b=a?this.$menu.find(".tt-dataset-"+a):this.$menu.find('[class^="tt-dataset-"]'),c=b.find(".tt-suggestions");b.hide(),c.empty(),0===this._getSuggestions().length&&(this.isEmpty=!0,this._hide())}}),b}(),l=function(){function b(a){var b,d,f;c.bindAll(this),this.$node=e(a.input),this.datasets=a.datasets,this.dir=null,this.eventBus=a.eventBus,b=this.$node.find(".tt-dropdown-menu"),d=this.$node.find(".tt-query"),f=this.$node.find(".tt-hint"),this.dropdownView=new k({menu:b}).on("suggestionSelected",this._handleSelection).on("cursorMoved",this._clearHint).on("cursorMoved",this._setInputValueToSuggestionUnderCursor).on("cursorRemoved",this._setInputValueToQuery).on("cursorRemoved",this._updateHint).on("suggestionsRendered",this._updateHint).on("opened",this._updateHint).on("closed",this._clearHint).on("opened closed",this._propagateEvent),this.inputView=new j({input:d,hint:f}).on("focused",this._openDropdown).on("blured",this._closeDropdown).on("blured",this._setInputValueToQuery).on("enterKeyed tabKeyed",this._handleSelection).on("queryChanged",this._clearHint).on("queryChanged",this._clearSuggestions).on("queryChanged",this._getSuggestions).on("whitespaceChanged",this._updateHint).on("queryChanged whitespaceChanged",this._openDropdown).on("queryChanged whitespaceChanged",this._setLanguageDirection).on("escKeyed",this._closeDropdown).on("escKeyed",this._setInputValueToQuery).on("tabKeyed upKeyed downKeyed",this._managePreventDefault).on("upKeyed downKeyed",this._moveDropdownCursor).on("upKeyed downKeyed",this._openDropdown).on("tabKeyed leftKeyed rightKeyed",this._autocomplete)}function e(b){var c=a(g.wrapper),d=a(g.dropdown),e=a(b),f=a(g.hint);c=c.css(h.wrapper),d=d.css(h.dropdown),f.css(h.hint).css({backgroundAttachment:e.css("background-attachment"),backgroundClip:e.css("background-clip"),backgroundColor:e.css("background-color"),backgroundImage:e.css("background-image"),backgroundOrigin:e.css("background-origin"),backgroundPosition:e.css("background-position"),backgroundRepeat:e.css("background-repeat"),backgroundSize:e.css("background-size")}),e.data("ttAttrs",{dir:e.attr("dir"),autocomplete:e.attr("autocomplete"),spellcheck:e.attr("spellcheck"),style:e.attr("style")}),e.addClass("tt-query").attr({autocomplete:"off",spellcheck:!1}).css(h.query);try{!e.attr("dir")&&e.attr("dir","auto")}catch(i){}return e.wrap(c).parent().prepend(f).append(d)}function f(a){var b=a.find(".tt-query");c.each(b.data("ttAttrs"),function(a,d){c.isUndefined(d)?b.removeAttr(a):b.attr(a,d)}),b.detach().removeData("ttAttrs").removeClass("tt-query").insertAfter(a),a.remove()}var g={wrapper:'<span class="twitter-typeahead"></span>',hint:'<input class="tt-hint" type="text" autocomplete="off" spellcheck="off" disabled>',dropdown:'<span class="tt-dropdown-menu"></span>'},h={wrapper:{position:"relative",display:"inline-block"},hint:{position:"absolute",top:"0",left:"0",borderColor:"transparent",boxShadow:"none"},query:{position:"relative",verticalAlign:"to1p",backgroundColor:"transparent"},dropdown:{position:"absolute",top:"100%",left:"0",zIndex:"100",display:"none"}};return c.isMsie()&&c.mixin(h.query,{backgroundImage:"url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)"}),c.isMsie()&&c.isMsie()<=7&&(c.mixin(h.wrapper,{display:"inline",zoom:"1"}),c.mixin(h.query,{marginTop:"-1px"})),c.mixin(b.prototype,d,{_managePreventDefault:function(a){var b,c,d=a.data,e=!1;switch(a.type){case"tabKeyed":b=this.inputView.getHintValue(),c=this.inputView.getInputValue(),e=b&&b!==c;break;case"upKeyed":case"downKeyed":e=!d.shiftKey&&!d.ctrlKey&&!d.metaKey}e&&d.preventDefault()},_setLanguageDirection:function(){var a=this.inputView.getLanguageDirection();a!==this.dir&&(this.dir=a,this.$node.css("direction",a),this.dropdownView.setLanguageDirection(a))},_updateHint:function(){var a,b,d,e,f,g=this.dropdownView.getFirstSuggestion(),h=g?g.value:null,i=this.dropdownView.isVisible(),j=this.inputView.isOverflow();h&&i&&!j&&(a=this.inputView.getInputValue(),b=a.replace(/\s{2,}/g," ").replace(/^\s+/g,""),d=c.escapeRegExChars(b),e=new RegExp("^(?:"+d+")(.*$)","i"),f=e.exec(h),this.inputView.setHintValue(a+(f?f[1]:"")))},_clearHint:function(){this.inputView.setHintValue("")},_clearSuggestions:function(){this.dropdownView.clearSuggestions()},_setInputValueToQuery:function(){this.inputView.setInputValue(this.inputView.getQuery())},_setInputValueToSuggestionUnderCursor:function(a){var b=a.data;this.inputView.setInputValue(b.value,!0)},_openDropdown:function(){this.dropdownView.open()},_closeDropdown:function(a){this.dropdownView["blured"===a.type?"closeUnlessMouseIsOverDropdown":"close"]()},_moveDropdownCursor:function(a){var b=a.data;b.shiftKey||b.ctrlKey||b.metaKey||this.dropdownView["upKeyed"===a.type?"moveCursorUp":"moveCursorDown"]()},_handleSelection:function(a){var b="suggestionSelected"===a.type,d=b?a.data:this.dropdownView.getSuggestionUnderCursor();d&&(this.inputView.setInputValue(d.value),b?this.inputView.focus():a.data.preventDefault(),b&&c.isMsie()?c.defer(this.dropdownView.close):this.dropdownView.close(),this.eventBus.trigger("selected",d.datum,d.dataset))},_getSuggestions:function(){var a=this,b=this.inputView.getQuery();c.isBlankString(b)||c.each(this.datasets,function(c,d){d.getSuggestions(b,function(c){b===a.inputView.getQuery()&&a.dropdownView.renderSuggestions(d,c)})})},_autocomplete:function(a){var b,c,d,e,f;("rightKeyed"!==a.type&&"leftKeyed"!==a.type||(b=this.inputView.isCursorAtEnd(),c="ltr"===this.inputView.getLanguageDirection()?"leftKeyed"===a.type:"rightKeyed"===a.type,b&&!c))&&(d=this.inputView.getQuery(),e=this.inputView.getHintValue(),""!==e&&d!==e&&(f=this.dropdownView.getFirstSuggestion(),this.inputView.setInputValue(f.value),this.eventBus.trigger("autocompleted",f.datum,f.dataset)))},_propagateEvent:function(a){this.eventBus.trigger(a.type)},destroy:function(){this.inputView.destroy(),this.dropdownView.destroy(),f(this.$node),this.$node=null},setQuery:function(a){this.inputView.setQuery(a),this.inputView.setInputValue(a),this._clearHint(),this._clearSuggestions(),this._getSuggestions()}}),b}();!function(){var b,d={},f="ttView";b={initialize:function(b){function g(){var b,d=a(this),g=new e({el:d});b=c.map(h,function(a){return a.initialize()}),d.data(f,new l({input:d,eventBus:g=new e({el:d}),datasets:h})),a.when.apply(a,b).always(function(){c.defer(function(){g.trigger("initialized")})})}var h;return b=c.isArray(b)?b:[b],0===b.length&&a.error("no datasets provided"),h=c.map(b,function(a){var b=d[a.name]?d[a.name]:new i(a);return a.name&&(d[a.name]=b),b}),this.each(g)},destroy:function(){function b(){var b=a(this),c=b.data(f);c&&(c.destroy(),b.removeData(f))}return this.each(b)},setQuery:function(b){function c(){var c=a(this).data(f);c&&c.setQuery(b)}return this.each(c)}},jQuery.fn.typeahead=function(a){return b[a]?b[a].apply(this,[].slice.call(arguments,1)):b.initialize.apply(this,arguments)}}()}(window.jQuery);
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="/typeahead.min.js"></script>
<script>
$(document).ready(function(){
$('input.typeahead').typeahead({
name: 'typeahead',
remote:'/search.php?key=%QUERY',
limit : 10
});
});
</script>
<script type="text/javascript">
$(document).ready(function () {
//Disable part of page
$('input#ara').bind('cut copy paste', function (e) {
e.preventDefault();
});
});
</script>
<script type="text/javascript">
function numbersonly(myfield, e, dec) {
var key;
var keychar;
if (window.event)
key = window.event.keyCode;
else if (e)
key = e.which;
else
return true;
keychar = String.fromCharCode(key);
// control keys
if ((key == null) || (key == 0) || (key == 8) ||
(key == 9) || (key == 13) || (key == 27))
return true;
// numbers
else if ((("ABCÇDEFGĞHIİJKLMNOÖPQRSŞTUÜVWXYZabcçdefgğhıijklmnoöpqrsştuüvwxyz0123456789").indexOf(keychar) > -1))
return true;
// decimal point jump
else if (dec && (keychar == ".")) {
myfield.form.elements[dec].focus();
return false;
}
else
return false;
}
</script>
My another topic has been marked as duplicate but to be honest, I don't really know how to adapt these suggested lines to my js codes to get it working properly.
var myString = getElementById("input").value;
var withoutSpace = myString.replace(/ /g,"");
var length = withoutSpace.length;

You just take the value, in your case val, and strip out the spaces.
Change this line:
var val = Field.value;
To:
var val = Field.value.replace(/\s/g, '');
I have changed the regex from the solution you've posted with \s, which matches all kinds of space, not just the whitespace character.

You could count all the caracters, including spaces, with this:
var val = Field.value;
var chars = val.length;
Then you can count how many spaces do you have:
var spacesArr = val.split(" ");
var spaces = spacesArr.length;
Finally, if you substract the values, you have the actual characters count:
var actualLength = chars - spaces;

How to Copy highlighted text to richtext box editor by adding Quote Tags using Javascript?

I am developing a forum website using ASP.net and in there when a user try to give a reply to already wrote post he can quote specific parts of that post.
I saw this quote thing on asp.net forum
https://forums.asp.net
In there you can highlight texts and when you click the quote button the highlighted text will be display in below tinymce richtext editor. I have the same implementation.
But I am not a expert in javascript. So far I achieved was this
<script>
function handlePaste(e) {
var clipboardData, pastedData;
// Stop data actually being pasted into div
e.stopPropagation();
e.preventDefault();
// Get pasted data via clipboard API
clipboardData = e.clipboardData || window.clipboardData;
pastedData = clipboardData.getData('Text');
// Do whatever with pasteddata
alert(pastedData);
}
document.getElementById('reference-post-content').addEventListener('paste', handlePaste);
</script>
In there if highlighted a text and press CTRL+C and then again if i press CTRL+V then it will give a popup message by displaying that highlighted text. But this is not what i wanted.
What I want is that text should go to richtextbox below if user click quote btn. Also it should go to rich textbox like this.
[quote user="ksss"]
message is in a thread in which the user is a THREAD_PARTICIPANT.
I'm afraid I can never state these
[/quote]
So how to do this? Here I found this javascript code by doing a browser debug on asp.net forums by using chrome. But it seems not working.
<script>
$("#quote-action") != null && $("#quote-action").bind("click", function () {
var n = null, t = $("#quote-createdby").val();
if (window.getSelection && (window.getSelection() || window.getSelection().extentNode != null) && window.getSelection().rangeCount > 0) {
var i = window.getSelection(), u = i.getRangeAt(0).cloneContents(), r = document.createElement("div"); r.appendChild(u); n = r.innerHTML; i.removeAllRanges()
}
else document.selection && (n = document.selection.createRange().htmlText, document.selection.empty()); (n == null || n == "") && (n = $("#reference-post-content").html());
$.ajax({ type: "POST", url: "/soa/post/body/removeprettyprinttags", data: { body: n }, success: function (i) { i != null && i.result != "" && (n = i.result); tinyMCE.activeEditor.focus(); tinyMCE.activeEditor.selection.moveToBookmark(tinyMCE.activeEditor.updatedSelectionBookmark); tinyMCE.execCommand("mceInsertContent", !1, '[quote user="' + t + '"]' + n + "[/quote]"); UpdateBookmark(tinyMCE.activeEditor) }, error: function (i, r, u) { isProd || alert("Error: " + r + " " + u); tinyMCE.activeEditor.focus(); tinyMCE.activeEditor.selection.moveToBookmark(tinyMCE.activeEditor.updatedSelectionBookmark); tinyMCE.execCommand("mceInsertContent", !1, '[quote user="' + t + '"]' + n + "[/quote]"); UpdateBookmark(tinyMCE.activeEditor) } })
});
</script>

href appending current URL before navigating to new link

function setRedirect()
{
var redirectDest = "This is additional description <a href="http://opensourceforgeeks.blogspot.in/">Click Me</a>.";
if(redirectDest != null && redirectDest != '')
{
document.getElementById("RedirectDestElem").innerHTML = redirectDest;
}
}
redirectDest is populated from Spring controller. So the function is actually
function setRedirect()
{
var redirectDest = "${redirectDest}";
if(redirectDest != null && redirectDest != '')
{
document.getElementById("RedirectDestElem").innerHTML = redirectDest;
}
}
This appends current url base address to http://opensourceforgeeks.blogspot.in and then redirects. I dont want this to happen. I have to convert " to " in Java code (escape it) so that my java script does not break. Otherwise it will be
var redirectDest = "This is additional description Click Me.";
which will break.

Why don't you enclose redirectDest in single quotes?
var redirectDest = '${redirectDest}';

you can use the escape sequence "\"
so your text will be like below:
var redirectDest = "This is additional description Click Me.";

Jquery: filter input on keypress

I have a text field, which will accept only the following characters:
Allowed characters: [a-z 0-9 + # - .]
This is the same filter SO does in the 'Tags' field, when you're asking a question.
If the user types an invalid character, i want the current text field value to remain unchanged. I tried:
$('#post_tags').keypress(function(event){
var char = String.fromCharCode(event.which)
var txt = $(this).val()
if (! txt.match(/[^A-Za-z0-9+#-\.]/)){
$(this).val(txt.replace(char, ''));
}
})
Why it doesn't work? Thanks!

This worked for me:
$(function(){
$('#t').keypress(function(e){
var txt = String.fromCharCode(e.which);
console.log(txt + ' : ' + e.which);
if(!txt.match(/[A-Za-z0-9+#.]/))
{
return false;
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input id="t" />

/[^A-Za-z0-9+#-\.]/
This negates the match of any one of those characters. To make it match more than one character, you have to use a + in there:
/[^A-Za-z0-9+#-\.]+/
^
And now to match the whole string, you need to add anchors:
/^[^A-Za-z0-9+#-\.]+$/
^ ^
EDIT: Okay, it seems that the - here is also creating a range from character # to .. In this case, you can either escape it, or put it at the end:
/^[^A-Za-z0-9+#\-\.]+$/
/^[^A-Za-z0-9+#\.-]+$/

You don't need to replace the char, only prevent it.
var char = String.fromCharCode(event.which)
if (!char.match(/^[^A-Za-z0-9+#\.\-]+$/)) event.preventDefault();

Alternate Solution
One thing that might help would be to use the .which field instead. Then simply return false when it doesn't fit. I actually have a huge object full of .which info for all major browsers. It includes arrays you could borrow from it to create something like:
var alphaNumericNcontrols = [ 8,9,13,16,17,18,19,20,32,33,34,35,36,37,38,39,40,44,45,46,145,48,49,50,51,52,53,54,55,56,57,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,96,97,98,99,100,101,102,103,104,105 ],
illegal = {
reg: [ 106,111,191,220 ],
shift: [ 56,59,188,190,191,220,222 ]
}
$(document).on("keydown", "input[type=text]", function(e) {
var eKey = e.which || e.keyCode;
if (alphaNumericNcontrols.indexOf(eKey) === -1) return false;
if (illegal.reg.indexOf(eKey) > -1) return false;
if (e.shiftKey && illegal.shift.indexOf(eKey) > -1) return false;
});
See Working Example Here
Keep in mind my Object is not perfect and there are some updates I probably need to make to it, but i did my best to establish everything from every possible major browser!

Thanks everyone.
Actually my problem was a little more difficult: filter invalid keys and start a ajax call for valid ones, in 2 different ways: if the user press SPACE/COMMA or while he/her still typing. Here's the code:
$(document).ready(function(){
$('#post_tags').keypress(function(e){
var txt = String.fromCharCode(e.which);
console.log(txt + ' : ' + e.which);
if(txt.match(/^[^A-Za-z0-9+#\-\.]+$/))
{
return false;
}
})
$('#post_tags').keyup(function(event){
code = event.which
var token = String.fromCharCode(code)
var txt = $(this).val()
//create a new tag, take it out of textfield
if (code == 32 || code == 188)
{
console.log("AJAX new word keyup")
$.ajax({
type: 'get',
url: '/posts/tags_change',
dataType: "json",
data: "query=" + $(this).val(),
success: function(data) {
console.log(data)
$('#post_tags').val('')
},
error: function(data) {
alert("Ajax error")
}
});
}
else
{
//do autocomplete ajax
console.log("typing:" + txt)
}
});
})
Dont' know if this is 100% right!

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