Get the last div in a row of floating divs - javascript

I have a number of divs floating in several rows. The divs contain text-previews and a link to slide down the full content (see http://jsfiddle.net/yDcKu/ for an example).
What happens now: When you slide down the content-div it opens right after the connected preview.
What I want to happen: Open the content-div after the last div in the row.
I assume the could be done by:
1. find out which div is the last one in the row of the activated preview,
2. add an id to this div and
3. append the content-div to this div.
I have a solution for steps 2 und 3 using jQuery but no guess how to do the first step.
I can manage to get the document width and the x- and y-value of each div but I have no idea how to find out which div has the highest x- as well the highest y-value and as well is in the row of the activated preview-div.
Any idea anyone? Thanks

Here is an example that does what you want. I simplified your code, so you don't have to manually ID every entry and preview.
http://jsfiddle.net/jqmPc/1/
It's a little complicated. Let me know if you have questions.
Basically, when the window is resized, the script goes through and finds the first preview in each row by finding the preview with the same left offset as the very first one. It then adds a class last to the entry before (previous row) and class first to this preview. I do css clear: left on both of these so that everything wraps normally when the entries open.
I made your code generic, without IDs:
<div class="preview">
<p>Some preview text <a class="trigger" href="#">…</a></p>
</div>
<div class="entry">
<div class="close_button">
<a class="close" href="#">×</a>
</div>
<p>Some content text.</p>
</div>
This makes you not have to write the same code over and over.
The open/close script:
$('.trigger').click(function() {
$('.openEntry').slideUp(800); // Close the open entry
var preview = $(this).closest('.preview'); // Grab the parent of the link
// Now, clone the entry and stick it after the "last" item on this row:
preview.next('.entry').clone().addClass('openEntry').insertAfter(preview.nextAll('.last:first')).slideDown(800);
});
// Use "on()" here, because the "openEntry" is dynamically added
// (and it's good practice anyway)
$('body').on('click', '.close', function() {
// Close and remove the cloned entry
$('.openEntry').slideUp(800).remove();
});
This could be simplified a bit I'm sure, especially if you were willing to reformat your html a little more, by putting the entry inside of the preview element (but still hidden). Here is a slightly simpler version, with the html rearranged:
http://jsfiddle.net/jqmPc/2/
(I also color the first and last element on the line so you can see what is going on)

You could just get the last div in the array after calling getElementsByTagName.
var divArray = wrapperDiv.getElementsByTagName("div");
if(divArray.length > 0)
var lastDiv = divArray[divArray.length-1];
else
console.log("Empty!");

i am not able to correctly understand your question, but if you want to find out last div element in the document then you can do something like this
$("div:last")
so this will give you last div of the document
Reference:
http://api.jquery.com/last-selector/

$([1,2]).each(function(idx,el) {
$("#entry" + el).hide().insertAfter("div.entry:last");
$("#trigger" + el).click(function() {
$("#entry" + el).slideDown('800');
});
$("#close" + el).click(function() {
$("#entry" + el).slideUp('800');
});
});​
http://jsfiddle.net/yDcKu/11/

I got same problem as yours, and I have been redirected to this question. But I think the answer is too complicated to my need. So I made my own way. Supposedly, you get your div list from a JSON, you can do this:
product[0] = {id: "name1", text: "text1"}
product[1] = {id: "name2", text: "text2"}
product[2] = {id: "name3", text: "text3"}
private getLastElement(id, products) {
const getTop = (id) => $("#" + id).position().top;
let itemPos = getTop(id);
let itemIndex = products.map(x => x.id).indexOf(id);
let lastID = itemIndex;
while (lastID < products.length - 1) {
if (getTop(products[lastID + 1].id) > itemPos) break;
lastID++;
}
return products[lastID].id;
}
But you can also find out by gathering all id inside your wrapper.
It works by scanning next id's row position, and return the last id of the same row.

I was looking for the same but on a single element to add style on first and last elements. #Jeff B answer helped me so alter and use it for me on one element. So the search phrase 'Get the last div in a row of floating divs' and someone looking for the same, this code may helpful:
Fiddle: https://jsfiddle.net/kunjsharma/qze8n97x/2/
JS:
$(function() {
$(window).on('resize', function() {
var startPosX = $('.preview:first').position().left;
$('.preview').removeClass("first last");
$('.preview').each(function() {
if ($(this).position().left == startPosX) {
$(this).addClass("first");
$(this).prevAll('.preview:first').addClass("last");
}
});
$('.preview:last').addClass("last");
});
$(window).trigger('resize');
});
CSS:
.preview {
float: left;
}
HTML:
<div class="preview">
<p>Some preview text</p>
</div>
<div class="preview">
<p>Some preview text</p>
</div>
<div class="preview">
<p>Some preview text</p>
</div>
<div class="preview">
<p>Some preview text</p>
</div>

Related

dynamically insert div after row containing floating divs jquery [duplicate]

I have a number of divs floating in several rows. The divs contain text-previews and a link to slide down the full content (see http://jsfiddle.net/yDcKu/ for an example).
What happens now: When you slide down the content-div it opens right after the connected preview.
What I want to happen: Open the content-div after the last div in the row.
I assume the could be done by:
1. find out which div is the last one in the row of the activated preview,
2. add an id to this div and
3. append the content-div to this div.
I have a solution for steps 2 und 3 using jQuery but no guess how to do the first step.
I can manage to get the document width and the x- and y-value of each div but I have no idea how to find out which div has the highest x- as well the highest y-value and as well is in the row of the activated preview-div.
Any idea anyone? Thanks
Here is an example that does what you want. I simplified your code, so you don't have to manually ID every entry and preview.
http://jsfiddle.net/jqmPc/1/
It's a little complicated. Let me know if you have questions.
Basically, when the window is resized, the script goes through and finds the first preview in each row by finding the preview with the same left offset as the very first one. It then adds a class last to the entry before (previous row) and class first to this preview. I do css clear: left on both of these so that everything wraps normally when the entries open.
I made your code generic, without IDs:
<div class="preview">
<p>Some preview text <a class="trigger" href="#">…</a></p>
</div>
<div class="entry">
<div class="close_button">
<a class="close" href="#">×</a>
</div>
<p>Some content text.</p>
</div>
This makes you not have to write the same code over and over.
The open/close script:
$('.trigger').click(function() {
$('.openEntry').slideUp(800); // Close the open entry
var preview = $(this).closest('.preview'); // Grab the parent of the link
// Now, clone the entry and stick it after the "last" item on this row:
preview.next('.entry').clone().addClass('openEntry').insertAfter(preview.nextAll('.last:first')).slideDown(800);
});
// Use "on()" here, because the "openEntry" is dynamically added
// (and it's good practice anyway)
$('body').on('click', '.close', function() {
// Close and remove the cloned entry
$('.openEntry').slideUp(800).remove();
});
This could be simplified a bit I'm sure, especially if you were willing to reformat your html a little more, by putting the entry inside of the preview element (but still hidden). Here is a slightly simpler version, with the html rearranged:
http://jsfiddle.net/jqmPc/2/
(I also color the first and last element on the line so you can see what is going on)
You could just get the last div in the array after calling getElementsByTagName.
var divArray = wrapperDiv.getElementsByTagName("div");
if(divArray.length > 0)
var lastDiv = divArray[divArray.length-1];
else
console.log("Empty!");
i am not able to correctly understand your question, but if you want to find out last div element in the document then you can do something like this
$("div:last")
so this will give you last div of the document
Reference:
http://api.jquery.com/last-selector/
$([1,2]).each(function(idx,el) {
$("#entry" + el).hide().insertAfter("div.entry:last");
$("#trigger" + el).click(function() {
$("#entry" + el).slideDown('800');
});
$("#close" + el).click(function() {
$("#entry" + el).slideUp('800');
});
});​
http://jsfiddle.net/yDcKu/11/
I got same problem as yours, and I have been redirected to this question. But I think the answer is too complicated to my need. So I made my own way. Supposedly, you get your div list from a JSON, you can do this:
product[0] = {id: "name1", text: "text1"}
product[1] = {id: "name2", text: "text2"}
product[2] = {id: "name3", text: "text3"}
private getLastElement(id, products) {
const getTop = (id) => $("#" + id).position().top;
let itemPos = getTop(id);
let itemIndex = products.map(x => x.id).indexOf(id);
let lastID = itemIndex;
while (lastID < products.length - 1) {
if (getTop(products[lastID + 1].id) > itemPos) break;
lastID++;
}
return products[lastID].id;
}
But you can also find out by gathering all id inside your wrapper.
It works by scanning next id's row position, and return the last id of the same row.
I was looking for the same but on a single element to add style on first and last elements. #Jeff B answer helped me so alter and use it for me on one element. So the search phrase 'Get the last div in a row of floating divs' and someone looking for the same, this code may helpful:
Fiddle: https://jsfiddle.net/kunjsharma/qze8n97x/2/
JS:
$(function() {
$(window).on('resize', function() {
var startPosX = $('.preview:first').position().left;
$('.preview').removeClass("first last");
$('.preview').each(function() {
if ($(this).position().left == startPosX) {
$(this).addClass("first");
$(this).prevAll('.preview:first').addClass("last");
}
});
$('.preview:last').addClass("last");
});
$(window).trigger('resize');
});
CSS:
.preview {
float: left;
}
HTML:
<div class="preview">
<p>Some preview text</p>
</div>
<div class="preview">
<p>Some preview text</p>
</div>
<div class="preview">
<p>Some preview text</p>
</div>
<div class="preview">
<p>Some preview text</p>
</div>

Efficient jQuery/JS - avoiding copy-paste the same code again & again

I need to write an efficient code in order to keep it simple & code file small, also I want to use the knowledge I hopefully get from here in future codes.
UPDATE: Just to be clear - my example is fixed "buttons" on browser window side & if you click on one of them, it takes you to div with same ID (look at code below).
IMAGE:
MY CODE EXAMPLE:
//Smooth Scroll Menu Links
jQuery('.div1').on('click', function(e) {
e.preventDefault();
jQuery('html,body').animate({scrollTop:jQuery(this.hash).offset().top-100}, 800);
});
//I have to copy-paste it 1000 times & only change the ".div1" to something else
//Note that I need a solution with different class names, not "div1", "div2" etc but e.g "location", "potato", "car" etc.
How to make this code working without writing same lines for every single div?
There got to be a way to get class from item you click & then scroll to item with same name ID, right? Or any other way to keep codes shorter in that kind of situations - otherwise it's just copy-paste-huge-file fest.
You can give each button a class so you can catch them all, than go to the element you want to scroll to by looking at the attribute of the clicked button :)
HTML
<div class="buttons" data-scroll="div1">div1</div>
<div class="buttons" data-scroll="div2">div2</div>
<div class="buttons" data-scroll="div3">div3</div>
<div class="content" id="div1">some content</div>
<div class="content" id="div2">some content</div>
<div class="content" id="div3">some content</div>
JS
$('.buttons').on('click', function(e) {
e.preventDefault();
var scrollTarget = $(this).data("scroll");
scrollme(scrollTarget);
function scrollme(target) {
$('html,body').animate({scrollTop:$("#"+target).offset().top}, 800);
}
});
example: http://jsfiddle.net/7gd66kr1/1/
try this i hope will work with you :
jQuery('div').on('click', function(e) {
e.preventDefault();
jQuery('html,body').animate({scrollTop:jQuery(this.hash).offset().top-100}, 800);
});
note that : this function will aplay on all divs in page
I think there are more than an unique solution. If you don't want to modify your HTML, then you need a condition to determine if the clicked element is an "active" one:
jQuery('div').on('click', function(e) {
var id = $(this).attr('class');
var scrollto = $('#' + id);
if(scrollto.length > 0) {
e.preventDefault();
jQuery('html,body').animate({scrollTop:scrollto.offset().top-100}, 800);
}
});
If you "can" modify your HTML, it's wise to add some attribute to the "active" elements (the ones that are buttons), so you know they scroll the page, or put them inside a container. The attribute you add may be a class or any other valid attribute (I recommend "rel", but might be "data" as spotted by #Iliya Reyzis , who selects by class and scrolls to "data") and select them by it:
<div class="div1" rel="mybutton">div1</div>
jQuery("[rel='mybutton']").on('click', function(e) {
var id = $(this).attr('class');
var scrollto = $('#' + id);
e.preventDefault();
jQuery('html,body').animate({scrollTop:scrollto.offset().top-100}, 800);
});
Hope it helps!!

Show/Hide Content without reloading the page

I have three content boxes that i want to show and hide using controls.
The HTML is as follows:
<div id="leermat1">
Content here
<a class="pag-next">Next</a>
<a class="pag-prev">Previous</a>
</div>
<div id="leermat2">
Content here
<a class="pag-next">Next</a>
<a class="pag-prev">Previous</a>
</div>
<div id="leermat3">
Content here
<a class="pag-next">Next</a>
<a class="pag-prev">Previous</a>
</div>
I have the two anchors pag-next and pag-prev that will control which of the content divs should be visible at any given point:
I want to write jquery such as, when #leermat1 'pag-next' is clicked, it hides #leermat1 and shows #leermat2. Then when #leermat1 is hidden and #leermat2 shows, when '.pag-next' is clicked, it hides #leermat2, and shows #leermat3.
Also the 'pag-prev' should work the same way.
I started with the following but dont know where to go from here.
$(document).ready(function() {
$('.pag-next').on('click',function() {
$('#leermat1').addClass('hide');
$('#leermat2').addClass('show');
});
});
One more thing is that the '.pag-next' should stop functioning after it has shown #leermat3.
You need this
$('[class^=pag-]').click(function() {
var elem = $('[id^=leermat]').filter(":visible"); // take the visible element
var num = Number(elem[0].id.match(/\d+$/)[0]); // take the number from it
var step = $(this).is('.pag-next') ? 1 : -1; // ternary operator
$('#leermat'+ (num + step)).show(); // show next or back
elem.hide(); // hide the visible element
});
Looks like in your anchor tag you have not given it a class.
Next
You then go on in your JQuery code to add a click function to a class which does not exist.
$('.pag-next').on('click',function()
Try adding class="pag-next" to your anchor tag.
This is what worked for me through a little trial and error. Although I am not sure if this is the most efficient solution.
$('#leermat1 .pag-next').on('click',function(){
$('#leermat1').addClass('hide');
$('#leermat1').removeClass('show');
$('#leermat3').addClass('hide');
$('#leermat3').remove('show');
$('#leermat2').addClass('show');
});
$('#leermat2 .pag-next').on('click',function(){
$('#leermat1').removeClass('show');
$('#leermat2').addClass('hide');
$('#leermat2').removeClass('show');
$('#leermat3').addClass('show');
});
$('#leermat2 .pag-prev').on('click',function(){
$('#leermat2').addClass('hide');
$('#leermat2').removeClass('show');
$('#leermat1').addClass('show');
$('#leermat3').removeClass('show');
});
$('#leermat3 .pag-prev').on('click',function(){
$('#leermat3').addClass('hide');
$('#leermat2').addClass('show');
$('#leermat1').addClass('hide');
$('#leermat3').removeClass('show');
$('#leermat1').removeClass('show');
});

jQuery: How to assign the right ID to a button dynamically

I have a JS/jQuery script that adds our leads (web contacts) to the DOM in a for loop. Everything works fine except for one thing. I want the body of the lead to be hidden upon the initial display, and then have a slideToggle button to display or hide the details That means dynamically adding click events to each button as it is created. The entire HTML (HTML and a JSON object mixed into the HTML) of the lead and the slideToggle button are all appended to a node in the DOM in the for loop. Here is the pertinent part of the for loop:
// Hide the body of the lead; just show the title bar and the first line
var dataID = data[i].id
var div = $('#row' + dataID);
var more = $('#more' + dataID);
div.hide();
// Create click event for each "+" button
more.click(function() {
div.slideToggle();
});
But when I click on the "+" button to reveal the details, it opens the last div, not the div I am trying to open. This is true no matter how many leads I have on the page. How do I get the click event to open the right div. If I console.log "div" in the click event, it gives me the ID of the last div, not the one I am clicking on. But if I console.log(div) outside the click event, it has the right ID.
Also, I was unsure whether I needed the "vars" in the loop or if I should declare them outside the loop.
Here is the HTML. It's one lead plus the beginning of the next lead, which I left closed in Firebug
<div id="lead1115">
<div id="learnmore">
<a id="more1115" class="more" href="#">+</a>
</div>
<div id="lead-info">
<div id="leadID">Lead ID# Date: March 27, 2012 11:26 AM (Arizona time)</div>
<div id="company">No company given</div>
<div id="name">Meaghan Dee</div>
<div id="email">
meaghan.dee#gmail.com
</div>
<br class="clearall">
<div>
<div id="row1115" style="display: none;">
<div id="phone">No phone given</div>
<div id="source">www.ulsinc.com/misc/expert-contact/</div>
<div id="cp-name">No channel partner chosen</div>
<br class="clearall">
<div id="location">
No location given
<br>
<strong>IP Address:</strong>
198.82.10.87
<br>
<span>Approximate Location: Blacksburg, Virginia, United States</span>
<br>
</div>
<div id="details">
<strong>Questions/Comments</strong>
<br>
We have the Professional Series Universal Laser Systems (laser cutter), and I wondered how I would order a high power density 2.0 replacement lens.nnThank you
</div>
</div>
</div>
</div>
<div id="learnmore">
<a id="1115|send_message" class="verify" href="#">Verify</a>
<a id="1115|send_message" class="markAsSpam" href="#">Spam</a>
<a id="1115|send_message" class="markAsDuplicate" href="#">Duplicate</a>
</div>
</div>
<br class="clearall">
<div id="lead1116">
<br class="clearall">
Try using .bind (or .on for 1.7+) and the data parameter.
more.bind("click",{target:div},function(e){
e.data.target.show();
}
or
more.on("click",{target:div},function(e){
e.data.target.show();
}
I think your basic problem is that div is common as a variable to all items. You have to separate the div's from each other by, for example, creating a local function and call it for each item. Something like:
function buildMore(div) {
more.click(function() {
div.slideToggle();
});
}
and in the loop call:
addMore(div);
p.s.
Whether you declare your variables inside or outside the loop doesn't matter: you still get the same variables.
This is because div variable gets changed and settles with the last value set in the loop.
Try this:
...
funciton createClick(div) {
return function() { div.slidToggle();
}
more.click( createClick(div) );
...
The variable div doesn't stay frozen with your click handler so it's value will be what it was at the end of the for loop and all click handlers will use the same value (which is what you're seeing).
There are a number of different ways to approach this and I thought all would be educational. Any one of them should work.
Idea #1 - Manufacture the row id from the clicked on more id
Use the id value on the clicked on link to manufacture the matching row ID. Since you create them in pairs, this can be done programmatically like this:
// Hide the body of the lead; just show the title bar and the first line
var dataID = data[i].id
$('#row' + dataID).hide();
$('#more' + dataID).click(function() {
// manufacture the row ID value from the clicked on id
var id = this.id.replace("more", "#row");
$(id).slideToggle();
});
Idea #2 - Use a function closure to "freeze" the values you want
Another way to do that is to create a function and closure that will capture the current value of div:
// Hide the body of the lead; just show the title bar and the first line
var dataID = data[i].id
var div = $('#row' + dataID).hide();
var more = $('#more' + dataID);
function addClick(moreItem, divItem) {
// Create click event for each "+" button
moreItem.click(function() {
divItem.slideToggle();
});
}
addClick(more, div);
Idea #3 - Use the HTML spatial relationship to find the row associated with a more
To make this work, you need to put a common class=lead on the top level lead div like this:
<div id="lead1115" class="lead">
And, a common class on each row:
<div id="row1115" class="row" style="display: none;">
Then, you can use the position relationships to find the row object that is in the same parent lead object as the clicked on more link like this:
// Hide the body of the lead; just show the title bar and the first line
var dataID = data[i].id
$('#row' + dataID).hide();
$('#more' + dataID).click(function() {
// find out common parent, then find the row in that common parent
$(this).closest(".lead").find(".row").slideToggle();
});
Idea #4 - Put the row ID as data on the more link
// Hide the body of the lead; just show the title bar and the first line
var dataID = data[i].id
$('#row' + dataID).hide();
$('#more' + dataID).data("row", "#row" + dataID).click(function() {
// get the corresponding row from the data on the clicked link
var rowID = $(this).data("row");
$(rowID).slideToggle();
});

jQuery display html in textarea exclude an element

I have 4 divs in a container. I want to display the html of the container which contains the divs in the textarea. I'm able to do this. The issue is, i don't want to get all the html of the container. I don't want to get #iv #three. I want to copy all the html of the container except div #three. I could use $('#three').remove() but i don't want to remove the div, I just don't want to copy it's html value to textarea. Check jsfiddle http://jsfiddle.net/rzfPP/
<div id="container">
<div id="one">test 1 </div>
<div id="two">test 2 </div>
<div id="three">test 3 </div>
<div id="four">test 4 </div>
</div>
<textarea id="save"></textarea>
var x = $('#container').html();
$('#save').val(x);
Try this
$("#container").clone().find("#three").remove().end().html();
http://jsfiddle.net/rzfPP/21/
/*
var x = $('#container').html();
$('#save').val(x);
*/
var lol = $('#container').clone()
$(lol).find('#three').remove();
$('#save').val(lol.html());
$('#container').clone().find('#three').remove().end().html();
Technically this is illegal since you are duplicating IDs, but it works fine.
http://jsfiddle.net/rzfPP/33/
Edit: Someone beat me to it :( Oh well.
var text = "";
$('#container div').each( function() {
if ( this.id != "three" ) {
text += $(this).html();
}
});
$('#save').val( text );
http://jsfiddle.net/rzfPP/31/
Basically you check the divs inside #container one by one, and check their id. If it's one you want, add their html to a string. Then at the end give that string as your textarea value.

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