I is it any way i can make this work:
document.getElementById('someid').onclick = function(e) {
If the element is in a child html loaded into a jquery-dialog?
Edit:
Just to be clear. Im trying this map-view function which i didn't write myself. It looks like this:
document.getElementById('map-navigation').onclick = function(e) {
var pos = e.target.getAttribute('data-position');
var zoom = e.target.getAttribute('data-zoom');
if (pos && zoom) {
var loc = pos.split(',');
var z = parseInt(zoom);
map.setView(loc, z, {animation: true});
return false;
}
}
It works when i put the anchor on the main page but not if i put it in the child-html which i load into a dialog (#dialog)
$('someid').on('click', function(e) {...}
Something like that will work. on let's you attach events to elements that exist now or will exist in the future.
If that element isn't on the page on load, you could do something like
$('body').on('click','someid', function(e) {...}
UPDATE
To incorporate the code you added, you could write the handler like this:
$('body').on('click','someid', function(e) {
var pos = e.target.getAttribute('data-position');
, zoom = e.target.getAttribute('data-zoom')
, loc
, z;
if (pos && zoom) {
loc = pos.split(',');
z = parseInt(zoom, 10);
map.setView(loc, z, {animation: true});
return false;
}
}
If you are only using click function then you can go for .click() API
$('#yourId').click(function()
{
//Function callback logic
})
Besides this you can also go for .on() (version 1.7+) and .bind() to attach events. Checkout their documentation on http://api.jquery.com/on/ and https://api.jquery.com/bind/
Simply like this:
document.getElementById('idOfYourDialog').getElementId('elementInDialog').onclick = function()
{
//Some Code
}
Or, if you want to do it in JQuery,
$('#idOfYourDialog #elementInDialog').on('click', function()
{
//Some Code
});
Demo
Related
Can you use JQuery on a window reference? I have tried the following with no luck.
function GetDiPSWindow() {
var DiPSURL = "/DiPS/index";
var DiPSWindow = window.open("", "DiPS", "toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=520,height=875");
if (DiPSWindow.location.href === "about:blank") {
DiPSWindow.location = DiPSURL;
}
return DiPSWindow;
}
function AddRecipient(field, nameId) {
// Get window
var win = GetDiPSWindow();
// Attempt 1
$(win.document).ready(function () {
var input = win.document.getElementById(field + "_Input");
input.value = nameId;
});
// Attempt 2
$(win).ready(function () {
var input = win.document.getElementById(field + "_Input");
input.value = nameId;
});
// Attempt 3
$(win).load(function () {
var input = win.document.getElementById(field + "_Input");
input.value = nameId;
});
}
Am I making a simple mistake?
EDIT For some reason, win.document.readyState is "complete". Not sure if that makes a difference.
I have also tried:
View contains:
<script>var CallbackFunction = function() {}; // Placeholder</script>
The method:
function AddRecipient(field, nameId) {
var DiPSURL = "/DiPS/index";
if (deliveryChannel === undefined) {
deliveryChannel = 0;
}
var DiPSWindow = GetDiPSWindow();
if (DiPSWindow.location.href === "about:blank") {
DiPSWindow.location = DiPSURL;
DiPSWindow.onload = function () { DiPSWindow.CallbackFunction = AddRecipient(field, nameId) }
} else {
var input = DiPSWindow.document.getElementById(field + "_Input");
input.value = input.value + nameId;
var event = new Event('change');
input.dispatchEvent(event);
}
}
The answer is.... kinda. it depends on what you are doing.
You can use jquery on the parent page to interact with a page within an iframe, however, anything that requires working with the iframe's document object may not work properly because jQuery keeps a reference of the document it was included on and uses it in various places, including when using document ready handlers. So, you can't bind to the document ready handler of the iframe, however you can bind other event handlers, and you can listen for the iframe's load event to know when it is absolutely safe to interact with it's document.
It would be easier though to just include jquery within the iframe itself and use it instead. It should be cached anyway, so there's no real detriment to performance by doing so.
I have tried searching for what I am trying to accomplish, however I have not found what I am looking for.
I am looking to create a Next and Previous button inside the content of the Spry Accordion provided with Dreamweaver CS6. I have searched the SpryAccordion.js and found this code below:
Spry.Widget.Accordion.prototype.openNextPanel = function()
{
return this.openPanel(this.getCurrentPanelIndex() + 1);
};
Spry.Widget.Accordion.prototype.openPreviousPanel = function()
{
return this.openPanel(this.getCurrentPanelIndex() - 1);
};
So I attempted to do this with "#acc-step-1-next" being my "Next" button in Panel 1.
<script>
$(document).ready(function(){
$("#acc-step-1-next").click(function(){
Spry.Widget.Accordion.prototype.openNextPanel = function(){
return ('#Accordian1').openPanel(this.getCurrentPanelIndex() + 1);
};
});
});
</script>
I was wondering if doing it this way might make it easy! How would I go about applying this? Would this work or not?
Also, with the "Next" button, could I just make it ".acc-step-next" and use it universally, instead of individually assigning new ID's?
EDIT:
Sorry, yes I read your answer incorrectly. I have tried searching for the init property, however have had no success.
This is what starts in the Accordion JS file:
(function() { // BeginSpryComponent
if (typeof Spry == "undefined") window.Spry = {}; if (!Spry.Widget) Spry.Widget = {};
Spry.Widget.Accordion = function(element, opts)
{
this.element = this.getElement(element);
this.defaultPanel = 0;
this.hoverClass = "AccordionPanelTabHover";
this.openClass = "AccordionPanelOpen";
this.closedClass = "AccordionPanelClosed";
this.focusedClass = "AccordionFocused";
this.enableAnimation = true;
this.enableKeyboardNavigation = true;
this.currentPanel = null;
this.animator = null;
this.hasFocus = null;
this.previousPanelKeyCode = Spry.Widget.Accordion.KEY_UP;
this.nextPanelKeyCode = Spry.Widget.Accordion.KEY_DOWN;
this.useFixedPanelHeights = false;
this.fixedPanelHeight = 0;
Spry.Widget.Accordion.setOptions(this, opts, true);
if (this.element)
this.attachBehaviors();
};
Which I added this after, but still no luck:
var acc_next = document.getElementById("acc-step-next");
var acc_prev = document.getElementById("acc-step-prev");
$("acc_next").click(function(){
accordion.openNextPanel();
});
$("acc_prev").click(function() {
accordion.openPreviousPanel();
});
I have never worked with Spry.Widget.Accordion, but I would try something like the following.
Search for the code, where your accordion is initialized, it should look something like that:
var accordion = new Spry.Widget.Accordion("Accordian1",{});
And add this just below:
$(".acc-step-next").click(function(){
accordion.openNextPanel();
});
Together it could look something like that:
<script type="text/javascript">
$(document).ready(function(){
var accordion = new Spry.Widget.Accordion("Accordian1",{});
// Add a click handler to all buttons with the class 'acc-step-next' (yes you can do that)
$(".acc-step-next").click(function(){
// when the button is clicked, call the openNextPanel method of the accordion instance we saved above
accordion.openNextPanel();
});
});
</script>
Say I have a link like the following:
<a class="link" href="www.rich.com" onmouseover="go(this)">Link</a>
Is there a way to configure the onmouseover event, calling go(this) to run only a single time while still using the inline onmouseover=<some code> notation? I want it defined inline, not with a JavaScript call.
Currently, I have this, but it is not what I want:
$(".link").one('mouseover', function(e) {
// do something
});
You can nullify the onmouseover binding afterwards:
<a class="link" href="www.rich.com" onmouseover="go(this); this.onmouseover = null;">Link</a>
Using Vanilla JS:
const link = document.querySelector('.link');
link.addEventListener('mouseover',
() = window.open('your url'),
{ once : true }
);
ref: How can I add an event for a one time click to a function?
You could set a var that indicates whether it has been triggered or not...
var triggered = false;
$(".link").one('mouseover', function(e) {
// do something
if(!triggered)
{
triggered = true;
// and whatever else you want to do
}
});
Alternatively you can do something like this :
var check = 0;
$(".link").on('mouseover', function(e) {
if(check == 0 ){
// do something
check = 1;
}else {
return false;
}
});
Is there a way to use jQuery selectors in modular way:
var logo = $('.logo', function() {
function show () {
console.log('logo has appeared');
$(this).addClass('logo-animated');
};
function hide() {
console.log('logo has been removed');
};
});
I want to be able to assign selector to variable and have some functions within it that I could be able access from outer it's scope.
NOTICE, that is pseudo code, I just drew you a picture of how I see it.
var selector = $('.someclass',
# here goes functions that I could access from outside;
);
UPDATE
var parallax = function() {
var images = ["http://localhost:8000/static/assets/images/hero-image-welcome.jpeg"];
var selector = $('.parallax-module');
var reload = function() {
console.log('reload')
};
$(selector).each(function(index) {
var image = {};
image.element = $(this);
image.height = image.element.height();
images.push(image);
$(this).css('background-image', 'url(' + images[index] + ')');
});
return {
images: images,
reload: reload()
}
}();
parallax.reload;
console.log(parallax.images[0])
// This goes without error, but isn't right;
var sParallax = $('.parallax-module');
sParallax.addClass('someClass');
// This would cause error;
parallax.addClass('someClass');
In this case I can use parallax public properties and methods, but I can't use selector (as I did in the beginning) without creating a new link to it. I know I can use public properties to access selector, but it's not the way I looking for.
You can just set the variable with your desired selector and then just add functions to that variable
var logo = $('.logo');
logo.show = function () {
console.log('logo has appeared');
$(this).addClass('logo-animated');
}
logo.hide = function () {
console.log('logo has been removed');
}
logo.show();
logo.hide();
JSFIDDLE
You can access through this:
logo.prevObject[0].show()//or hide()
I think I found the way, but it does not look right to me, it is working thought:
var parallax = function() {
var images = ["http://localhost:8000/static/assets/images/hero-image-welcome.jpeg"];
var selector = $('.parallax-module');
var reload = function() {
console.log('reload')
};
$(selector).each(function(index) {
var image = {};
image.element = $(this);
image.height = image.element.height();
images.push(image);
$(this).css('background-image', 'url(' + images[index] + ')');
});
return {
images: images,
reload: reload()
}
}().selector;
With selector reference in the end it is now valid to use parallax variable as simple link to DOM element, as well as to access functions that within it.
I'm having difficulty getting my textarea to expand vertically automatically.
I have some code to help make textarea auto expand vertically and for some reason it works when I clean out all my JS and provide a selector with reference to textarea e.g. $('textarea').autoGrow();
Calling the plugin on a chain of methods stops it from working. E.G.
micropostBox.hide().removeClass("micropost_content")
.addClass("micropost_content_expanded").show().autoGrow();
I established the plugin code works so copied all my working code to the same page and applied the autoGrow code to my textarea but it seems to be unresponsive. I noticed that the plugin I'm using the code from uses bind and unbind methods. In my code I use on and off methods from JQuery and wondering if this could be why the auto resizing of my textarea is not working?
Here is the code:
http://jsfiddle.net/erU5J/101/
autogrow plugin js code
$(function($) {
$.fn.autoGrow = function() {
return this.each(function() {
var txtArea = $(this);
var colsDefault = txtArea.attr('cols');
var rowsDefault = txtArea.attr('rows');
var updateSize = function() {
var linesCount = 0;
var lines = txtArea.attr('value').split('\n');
for (var i = lines.length - 1; i >= 0; --i) {
linesCount += Math.floor((lines[i].length / colsDefault) + 1);
}
if (linesCount >= rowsDefault) {
txtArea.attr('rows', linesCount + 1);
}
else {
txtArea.attr('rows', rowsDefault);
}
};
txtArea.unbind('.autoGrow').bind('keyup.autoGrow', updateSize).bind('keydown.autoGrow', updateSize).bind('change.autoGrow', updateSize);
});
};
});
my js code
$(function() {
$("div.microposts").on("focus", "textarea#micropostBox", function() {
var micropostForm = $(this).parent(),
micropostBox = micropostForm.find('textarea#micropostBox'),
micropostButton = micropostForm.find("input#micropostButton"),
xButton = micropostForm.find("div.xButton");
micropostBox.prop('rows', 7);
micropostForm.find('div#micropostOptions').removeClass('micropostExtraOptions');
micropostForm.find('div#postOptions').show();
$.trim(micropostBox.val()) == '' ? micropostButton.addClass("disabledMicropostButton").show()
:
micropostButton.prop('disabled', false);
micropostBox.hide().removeClass("micropost_content").addClass("micropost_content_expanded").show().autoGrow();
xButton.show();
micropostButton.prop('disabled', true);
micropostBox.off().on("keypress input change", function() {
micropostButton.prop({
disabled: !$.trim($(this).val()) != ''
});
$.trim($(this).val()) != '' ? micropostButton.removeClass("disabledMicropostButton").addClass("activeMicropostButton")
:
micropostButton.removeClass("activeMicropostButton").addClass("disabledMicropostButton");
});
xButton.on('click', function() {
micropostBox.removeClass("micropost_content_expanded").addClass("micropost_content");
micropostForm.find('div#micropostOptions').addClass('micropostExtraOptions');
micropostBox.val("");
micropostForm.find('div#postOptions').hide();
xButton.hide();
micropostButton.hide();
micropostBox.removeAttr('style');
micropostBox.prop('rows', 0);
micropostForm.find('.imagePreview > img').remove();
micropostForm.find('.imagePreview').hide();
});
});
});
$(function() {
$('div.microposts').on('click', 'li#addImage', function() {
var form = $(this).parents('form#new_micropost'),
fileField = form.find('input#micropost_image');
fileField.trigger('click');
});
});
$(function() {
$('input#micropost_image').change(function(evt) { //.off() make sautoresize work
var image = evt.target.files[0],
form = $(this).parents('form#new_micropost'),
imagePreviewBox = form.find('div.imagePreview'),
reader = new FileReader();
reader.onload = function(evt) {
var resultdata = evt.target.result,
img = new Image();
img.src = evt.target.result;
imagePreviewBox.show().prepend(img);
};
reader.readAsDataURL(image);
});
});
textarea
<textarea class="micropost_content" cols="40" id="micropostBox" name="micropost[content]" placeholder="" rows="0"></textarea>
It would be best to view a working example on jsfiddle. My aim is to have the auto resizing of textarea working before and after an image is added to the page using the image upload button in the textarea.
Kind regards
It depends if the method preceding the plugin call returned the jQuery object containing the elements to where the plugins need to be attached.
Here are a few examples of methods that do and do not return the elements you started with:
$('element') //get an element
.contents() //get an elements contents
.wrapAll('<div>') //wrapAll contents with div and returns the contents, not wrapper
.parent() //the wrapper
.parent() //the element
.myPlugin() //we attach a plugin to element
$('<div>')
.appendTo('body') //appendTo returns the same element, the div
.myPlugin() //attaches to the div
$('element') //get an element
.text() //get its text
.myPlugin() //chaining isn't possible since text() returns a string
Better read the docs for every method in jQuery and what it returns. Some DOM methods usually return the same element, some don't, and some don't return elements but values.
In summary, can plugins be attached after chains? YES, and it depends.
Refer to the jQuery's documentation
http://docs.jquery.com/Plugins/Authoring#Maintaining_Chainability