Develop Reference

mxgraph: I would like to add a button to disable/enable the graph and toolbar

I tried to disable the graph by not allowing the cells on graph with follow code.
graph.setCellsSelectable(false);
but it is not working, still can select cell, (only disabled resizing)
And for the toolbar to be disabled, I tried to remove or replace ondrag event, is that correct? In theory I think mxgraph has their own event handler for dragging of toolbar item.
mx_toolbar.appendChild(
mxUtils.button("Disable/Enable", function() {
document.querySelectorAll('.toolbar > button').addEventListener(function (e) {
e.preventDefault()
return false;
});
}
)
Hope your help. I dont mind as long as it is working solution.
Thanks

Instead of removing or modifying the event handler, you can simply overlay the area you want to disable along with css.
var toolbarContainer = document.querySelector(".toolbar");
var overlay = document.querySelector(".toolbar-overlay")
if (!overlay) {
overlay = document.createElement('div')
overlay.className = 'toolbar-overlay'
toolbarContainer.appendChild(overlay)
} else {
overlay.parentNode.removeChild(overlay)
}
Here is css for the overlay div
.toolbar-overlay {
position: absolute;
top: 0;
height: 100%;
width: 100%;
opacity: 0.4;
background: #e1e1e1;
}
Note: You should make sure the parent div of the overlay div must positioned as relative to make this css working!

Slidedown form on click

I am trying to show form when user clickes on the button. Form is showing up but there seems to be a bug for a second. form is centered when the slide up function is executing and when it is done it fits normally to the page.
Here is the js:
$(document).ready(function() {
$('.clicked').on('click', function(e) {
var current = $(e.target).next();
var show = current.hasClass('hidden');
if (show) {
current.hide();
current.removeClass('hidden');
current.slideDown('slow');
} else {
current.slideUp('slow', function() {
current.addClass('hidden');
current.slideUp('slow');
});
}
})
});
I do not think there is any bug in js code, most likely missing something in css.
Have a look here and click on blue button "Click Here" http://codepen.io/nikasv/pen/vKEEZr
Thanks.

.trip-form{
width: 100%;
overflow:hidden;
}
will do the trick even with the shaking you experience :)

You should try to set width of class "trip-form" to 100%.

Javascript button appear animation

I have the back to top button that appears when you reach a point on the page, which is working fine, however, when it appears the text is on two lines until the box has finished the animation to appear. So, is there anyway to prevent this? What I mean by the animation is: btt.show('slow');
Code:
$(document).ready(function () {
var btt = $('.back-to-top');
btt.on('click' , function(e) {
$('html, body').animate({
scrollTop: 0
}, 500);
btt.hide('slow');
e.preventDefault();
});
$(window).on('scroll', function () {
var self = $(this),
height = self.height(),
top = self.scrollTop();
if (top > 500) {
btt.show('slow');
} else {
btt.hide('slow');
}
});
});
Example: http://codepen.io/Riggster/pen/WvNvQm

The problem is caused by animating the width of a box, I think it might be better to animate the position of it instead, but - even better - lets use CSS animations!
$(window).on('scroll', function () {
if ($(window).scrollTop() >= 500) {
$(".button").addClass('show');
} else {
$(".button").removeClass('show');
}
});
#wrapper {
width: 100%;
height: 2000px;
}
.button {
position: fixed;
bottom: 50px;
right: -100px;
/* You might still need prefixes here. Use as preferred. */
transition: right 500ms;
}
.button.show {
right: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<div id="wrapper">
<div class="button">Here's my button!</div>
</div>
I've defined your button as hidden by default, by giving it a position of right: -100px. When we hit the correct scroll position, we add the class show and that triggers the animation performed by CSS and not javascript, as we have the transition property for the property right defined - that way the browser does the heavy lifting.

Toggling show/hide alters your elements width. You either have to put it in a container with display: inline
Or more ideally you might want to change show/hide to jQuery fadeIn() / fadeOut() which is more appropriate for "Back to Top" indicators.
Here is your codepen example modified with inline container:
http://codepen.io/anon/pen/MwWweY

Page jumps abit up when an element above fades in

I have 2 elements, the first one (at the top) has the following CSS properties:
header {
position: relative;
height: 100%;
width: 100%;
background-color: black;
}
This makes it in the size of the browser's viewport, what I did on purpose because I wanted that result. I also had to give the html, body element the CSS property's for this to work (filling the screen with the first element):
html, body {
height: 100%;
width: 100%;
}
The second element I have looks like this:
#content {
display: none;
position: relative;
height: 1500px;
width: 100%;
background-color: yellow;
}
This element is underneath the first one.
As you can see, this element is hidden. That's because when I click on the button on the first element (which you can see in the jsFiddle) it shows the #content element, scrolls to that, and hides the element where we came from (header) when it's done scrolling.
Which works perfectly, I've got the function here:
var showScrollHide = function(showTime, element, eleTime, hide, hideTime, func) {
var _ele = $(element),
_hide = $(hide);
_ele.fadeIn(showTime, function() {
$('html, body').animate({
scrollTop: _ele.offset().top
}, eleTime, function() {
_hide.fadeOut(hideTime, func ? func : null);
});
});
};
I'm calling that function by this piece of code:
$('.exploreBtn').on('click', function() {
showScrollHide(500, content, 1000, header, 250, function() {
$(window).scrollTop(0);
$('.scrollBackBtn').fadeIn();
});
});
In the snippet above I had to call $(window).scrollTop(0); otherwise it would scroll down the page a bit when it was done scrolling. Also I displayed the scroll back button now, but that is the problem.
When I'm on the second element, and the element above it is hidden by the function above. And I try to use the same function to scroll it back up which means:
Show the element above
Scroll to it
Fade out the element we came from
It only gives me a fade to the element I'm trying to scroll to.
When I removed all the code from the function, and only used this:
$('header').fadeIn();
It just did the same and automatically faded the screen to that element we have just faded in. Which means it scrolls up, but not with any animation or what so ever.
Here is a jsFiddle to show what I'm doing
Btw, I already fixed this issue with the help of #Loktar with this piece of code, but I'm still not sure if its the right way to do it:
$('.scrollBackBtn').on('click', function() {
$(window).scrollTop(0);
$(header).slideDown();
});

If I am understanding it correctly the following should work.
_scrollBackBtn.on('click', function() {
_window.scrollTop(0);
$(header).slideDown();
});
Live Demo

Change div height with buttons

I need some scripting like the TYPO3 extension / module that runs on this site : http://nyati-safari.dk/index.php?id=125 (Scroll to: Detaljeret Dagsprogram (inkluderet)).
The div is shown with a pixelspecific height and when the arrow is clicked the div changes to contentspecific height also the arrow changes when the div toggles.

Do this:
var div = $('#div');
$('#arrow').click(function () {
if (div.height() == 100) {
autoHeight = div.css('height', 'auto').height();
div.height(100).animate({
height: autoHeight
}, 500);
} else {
$('#div').animate({
height: '100'
}, 500);
}
});
JSFiddle: http://jsfiddle.net/ZG8ug/5/
Can even do something like this: http://jsfiddle.net/ZG8ug/6/ where the 'hidden' div is small on page load but when viewed and returned it is bigger. Might be useful to help users distinguish what has already been viewed. Could even do it the other way around too so the div takes up even less space when it has been viewed.