I am using Highcharts and I am trying to make the legend to disappear and appear using a button, to save some screen real-estate.
I tried everything I could think of and all I managed to do is to make the SVG of the legend to hide and show using chart.legend.[group, nav, container].hide() but the white space which the legend takes never goes away. I even tried deleting the legend DOM element but the chart wouldn't resize (even calls to chart.reflow() don't help.
See here: http://jsfiddle.net/zbzzn/q83h5g4z/1/
Is there any way to make the legend disappear and reflow the chart so that the legend white space goes away?
Here's my sketch for a toggle method that sits directly on the Legend prototype. It avoids modifying the container width and height.
Highcharts.Legend.prototype.toggle = function () {
if (this.display) {
this.group.hide();
} else {
this.group.show();
}
this.display = !this.display;
this.chart.isDirtyBox = true;
this.chart.redraw();
};
Live demo at http://jsfiddle.net/highcharts/3Bh7b/76/
I managed to do a hack around it that works:
http://jsfiddle.net/q83h5g4z/4/
I really hope there is another way to do it without the hack.
if (!isVisible) {
originalLegendHeight = legend.legendHeight;
legend.options.maxHeight = -1; //0 doesn't work :( because someone did "if (maxHeight)" instead of "if (maxHeight === null)"
$('#container').height($('#container').height()-legend.legendHeight);
chart.redraw();
chart.reflow();
} else {
legend.options.maxHeight = null;
$('#container').height($('#container').height()+originalLegendHeight);
chart.redraw();
chart.reflow();
}
See this solution:
http://jsfiddle.net/3Bh7b/73/
var legend = chart.legend;
if(legend.display) {
legend.group.hide();
legend.display = false;
} else {
legend.group.show();
legend.display = true;
}
The final solution I reached is (where legendVisible determines the visibility of the legend) :
var legendElement = $(chart.container).find('.highcharts-legend');
if (legendElement.length > 0) {
if (chart.legend.options.enabled && legendVisible) {
legendElement.show();
chart.legend.options.maxHeight = chart.legend.options.originalMaxHeight || null;
chart.reflow();
} else {
legendElement.hide();
chart.legend.options.originalMaxHeight = chart.legend.options.maxHeight;
chart.legend.options.maxHeight = -1;
chart.reflow();
}
}
The following example is probably the easiest way to try and explain the effect I'm trying to achieve:
http://jsfiddle.net/qSscJ/2/
Code:
$(function() {
$('#handle').click(function() {
$('#box').toggle('slide', { direction: 'right' });
});
});
Click on the blue handle to make the entire red box collapse. How do I keep the blue handle visible after the box is collapsed (while keeping the handle anchored to the edge of the box)? I'm open to other jQuery UI APIs to achieve this effect.
You could do just animate the width directly so the element doesn't get marked as hidden at the end of the animation:
$(function() {
$('#handle').click(function() {
$('#box').animate({width: "0px"}, 1000);
});
});
But, it would be much better to change the design so that the blue tab was not contained within the box you're closing like here: http://jsfiddle.net/jfriend00/gKQrv/.
$(function() {
$('#handle').click(function() {
var box = $('#box');
var targetWidth = box.width() > 0 ? 0 : 150;
box.animate({width: targetWidth + "px"}, 1000);
});
});
I understand that mobile safari has a lot of bugs around fixed elements, but for the most part I've managed to get my layout working correctly until I added a much needed text input to the fixed navigation at the bottom. Now when the user focuses on the text input element and the virtual keyboard appears, my navigation, which is otherwise always fixed at the bottom of the page, jumps up to a really strange spot in the middle of the page.
I'd add some of my code to this post, but I wouldn't be sure where to start. That navigation is fixed at the bottom and positioned to the left and bottom 0, and 100% width. From there, I don't know what's going on, I can only assume it's a mobile safari bug.
It also appears to lose it's position fixed and become relative, only while the text input element is focused on and the virtual keyboard is open.
http://dansajin.com/2012/12/07/fix-position-fixed/ this is one of the solutions proposed. Seems worth a shot.
In short: set fixed elements to position:absolute when any input is focused and reset them when that element is blurred
.header {
position: fixed;
}
.footer {
position: fixed;
}
.fixfixed .header,
.fixfixed .footer {
position: absolute;
}
and
if ('ontouchstart' in window) {
/* cache dom references */
var $body = $('body');
/* bind events */
$(document)
.on('focus', 'input', function() {
$body.addClass('fixfixed');
})
.on('blur', 'input', function() {
$body.removeClass('fixfixed');
});
}
The solutions on the top are some ways to go and fix the problem, but I think adding extra css class or using moderniz we are complicating things.If you want a more simple solution, here is a non-modernizr non-extra-css but pure jquery solution and work on every device and browsers I use this fix on all my projects
if ('ontouchstart' in window) {
$(document).on('focus', 'textarea,input,select', function() {
$('.navbar.navbar-fixed-top').css('position', 'absolute');
}).on('blur', 'textarea,input,select', function() {
$('.navbar.navbar-fixed-top').css('position', '');
});
}
I had a similar problem, but I found a workaround by adding the following css class to the body element on input focus and then removing it again on unfocus:
.u-oh {
overflow: hidden;
height: 100%;
width: 100%;
position: fixed;
}
Taking from what sylowgreen did, the key is to fix the body on entering the input. Thus:
$("#myInput").on("focus", function () {
$("body").css("position", "fixed");
});
$("#myInput").on("blur", function () {
$("body").css("position", "static");
});
Add javascript like this:
$(function() {
var $body;
if ('ontouchstart' in window) {
$body = $("body");
document.addEventListener('focusin', function() {
return $body.addClass("fixfixed");
});
return document.addEventListener('focusout', function() {
$body.removeClass("fixfixed");
return setTimeout(function() {
return $(window).scrollLeft(0);
}, 20);
});
}
});
and add class like this:
.fixfixed header{
position: absolute;
}
you can reference this article: http://dansajin.com/2012/12/07/fix-position-fixed/
I really like the solution above. I packaged it up into a little jQuery plugin so I could:
Set which parent gets the class
Set which elements this applies to (don't forget "textarea" and "select").
Set what the parent class name is
Allow it to be chained
Allow it to be used multiple times
Code example:
$.fn.mobileFix = function (options) {
var $parent = $(this),
$fixedElements = $(options.fixedElements);
$(document)
.on('focus', options.inputElements, function(e) {
$parent.addClass(options.addClass);
})
.on('blur', options.inputElements, function(e) {
$parent.removeClass(options.addClass);
// Fix for some scenarios where you need to start scrolling
setTimeout(function() {
$(document).scrollTop($(document).scrollTop())
}, 1);
});
return this; // Allowing chaining
};
// Only on touch devices
if (Modernizr.touch) {
$("body").mobileFix({ // Pass parent to apply to
inputElements: "input,textarea,select", // Pass activation child elements
addClass: "fixfixed" // Pass class name
});
}
I use this jQuery script:
var focus = 0;
var yourInput = $(".yourInputClass");
yourInput.focusin(function(){
if(!focus) {
yourInput.blur();
$("html, body").scrollTop($(document).height());
focus = 1;
}
if(focus) {
yourInput.focus();
focus = 0;
}
});
Works perfectly for me.
The focusin and focusout events seem to be better suited to this problem than the focus and blur events since the former bubble up to the root element. See this answer on SO.
Personally I use AngularJS, so I implemented it like this:
$window.document.body.addEventListener('focusin', function(event) {
var element = event.target;
var tagName = element.tagName.toLowerCase();
if(!$rootScope.inputOverlay && (tagName === 'input' || tagName === 'textarea' || tagName === 'select')) {
$rootScope.$apply(function() {
$rootScope.inputOverlay = true;
});
}
});
$window.document.body.addEventListener('focusout', function() {
if($rootScope.inputOverlay) {
$rootScope.$apply(function() {
$rootScope.inputOverlay = false;
});
}
});
Note: I am conditionally running this script if this is mobile Safari.
I put an ng-class attribute on my navbar:
<div class="navbar navbar-default navbar-fixed-top" ng-class="{'navbar-absolute': inputOverlay}">
using the following CSS:
.navbar-absolute {
position: absolute !important;
}
You can read more about focusin here and focusout here.
Test this one. It works. I just test it.
$(document).on('focus','input', function() {
setTimeout(function() {
$('#footer1').css('position', 'absolute');
$('#header1').css('position', 'absolute');
}, 0);
});
$(document).on('blur','input', function() {
setTimeout(function() {
$('#footer1').css('position', 'fixed');
$('#header1').css('position', 'fixed');
}, 800);
});
None of these solutions worked for me because my DOM is complicated and I have dynamic infinite scroll pages, so I had to create my own.
Background: I am using a fixed header and an element further down that sticks below it once the user scrolls that far down. This element has a search input field. In addition, I have dynamic pages added during forward and backwards scroll.
Problem: In iOS, anytime the user clicked on the input in the fixed element, the browser would scroll all the way to the top of the page. This not only caused undesired behavior, it also triggered my dynamic page add at the top of the page.
Expected Solution: No scroll in iOS (none at all) when the user clicks on the input in the sticky element.
Solution:
/*Returns a function, that, as long as it continues to be invoked, will not
be triggered. The function will be called after it stops being called for
N milliseconds. If `immediate` is passed, trigger the function on the
leading edge, instead of the trailing.*/
function debounce(func, wait, immediate) {
var timeout;
return function () {
var context = this, args = arguments;
var later = function () {
timeout = null;
if (!immediate) func.apply(context, args);
};
var callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(context, args);
};
};
function is_iOS() {
var iDevices = [
'iPad Simulator',
'iPhone Simulator',
'iPod Simulator',
'iPad',
'iPhone',
'iPod'
];
while (iDevices.length) {
if (navigator.platform === iDevices.pop()) { return true; }
}
return false;
}
$(document).on("scrollstop", debounce(function () {
//console.log("Stopped scrolling!");
if (is_iOS()) {
var yScrollPos = $(document).scrollTop();
if (yScrollPos > 200) { //200 here to offset my fixed header (50px) and top banner (150px)
$('#searchBarDiv').css('position', 'absolute');
$('#searchBarDiv').css('top', yScrollPos + 50 + 'px'); //50 for fixed header
}
else {
$('#searchBarDiv').css('position', 'inherit');
}
}
},250,true));
$(document).on("scrollstart", debounce(function () {
//console.log("Started scrolling!");
if (is_iOS()) {
var yScrollPos = $(document).scrollTop();
if (yScrollPos > 200) { //200 here to offset my fixed header (50px) and top banner (150px)
$('#searchBarDiv').css('position', 'fixed');
$('#searchBarDiv').css('width', '100%');
$('#searchBarDiv').css('top', '50px'); //50 for fixed header
}
}
},250,true));
Requirements: JQuery mobile is required for the startsroll and stopscroll functions to work.
Debounce is included to smooth out any lag created by the sticky element.
Tested in iOS10.
I wasn't having any luck with the solution proposed by Dan Sajin. Perhaps the bug has changed since he wrote that blog post, but on iOS 7.1, the bug will always surface when the position is changed back to fixed after the input is blurred, even if you delay until the software keyboard is hidden completely. The solution I came to involves waiting for a touchstart event rather than the blur event since the fixed element always snaps back into proper position when the page is scrolled.
if (Modernizr.touch) {
var $el, focused;
$el = $('body');
focused = false;
$(document).on('focus', 'input, textarea, select', function() {
focused = true;
$el.addClass('u-fixedFix');
}).on('touchstart', 'input, textarea, select', function() {
// always execute this function after the `focus` handler:
setTimeout(function() {
if (focused) {
return $el.removeClass('u-fixedFix');
}
}, 1);
});
}
HTH
On page-load accordion should be collapsed...but here on page-load it's expanded and I don't know how to fix this bug?
$(document).ready(function()
{
//Add Inactive Class To All Accordion Headers
$('.accordion-header').toggleClass('inactive-header');
//Set The Accordion Content Width
var contentwidth = $('.accordion-header').width();
$('.accordion-content').css({'width' : contentwidth });
//Open The First Accordion Section When Page Loads
$('.accordion-header').first().toggleClass('active-header').toggleClass('inactive-header');
$('.accordion-content').first().slideDown().toggleClass('open-content');
// The Accordion Effect
$('.accordion-header').click(function () {
if($(this).is('.inactive-header')) {
$('.active-header').toggleClass('active-header').toggleClass('inactive-header').next().slideToggle().toggleClass('open-content');
$(this).toggleClass('active-header').toggleClass('inactive-header');
$(this).next().slideToggle().toggleClass('open-content');
}
else {
$(this).toggleClass('active-header').toggleClass('inactive-header');
$(this).next().slideToggle().toggleClass('open-content');
}
});
return false;
});
Here is jsFiddle example of my code.
Remove the following part of the code from your example and it will work just the way you expect:
//Open The First Accordion Section When Page Loads
$('.accordion-header').first().toggleClass('active-header').toggleClass('inactive-header');
$('.accordion-content').first().slideDown().toggleClass('open-content');
jsFiddle Working Example
for me just adding display: none to the accordion-content div seemed to do the trick:
$('.accordion-content').css({'width' : contentwidth }).css('display':'none');
Here's a demo of it in action: http://jsfiddle.net/YsY7n/1/
I am currently having issues making iPad work with a :hover event. To clear up what i mean i have uploaded part of the website at http://playing.everythingcreative.co.uk and I have 3 images, that when hovered over a div disappears to show text underneath but this does not work on the iPad at all. I tried:
ontouchstart="touchStart(event);"
But i don't know enough on how it works to use it right.
Any help would be great.
I figured it out anyway using the example on iOS automatic hover fix? and changing:
if(navigator.platform == "iPad") {
to:
if ("ontouchstart" in document.documentElement) {
The final code:
$(document).ready(function() {
if ("ontouchstart" in document.documentElement) {
$("div").each(function() { // have to use an `each` here - either a jQuery `each` or a `for(...)` loop
var onClick; // this will be a function
var firstClick = function() {
onClick = secondClick;
return false;
};
var secondClick = function() {
onClick = firstClick;
return true;
};
onClick = firstClick;
$(this).click(function() {
return onClick();
});
});
}
});