When using Sortable.create I can't seem to get the element that is being dragged. Does Sciptaculous not fully implement all Draggable and Droppable features when you use sortable?
Given:
Sortable.create("sortArea", {scroll:window, onChange:orderLi});
function orderLi(){
console.log(this.draggables.each(function(e){if(e.dragging==true){return e};}));
}
My console always shows all the array of draggables. How do I only grab the one that is being dragged?
The onChange function actually gets a handle to the element passed in.
Sortable.create("sortArea", {scroll:window, onChange:orderLi});
function orderLi(elementBeingDragged){
console.log(elementBeingDragged);
}
Related
I'm using RadListView and intercepting onItemLoading event.
Within that event, can I reference individual view elements inside the itemTemplate.
I see args.view._subViews - but I was wondering whether i could find element by name or something else. I assume id would not work because each item would have the same id.
You are correct getting by Id would only return the first one. However, if you have the reference to the ListView child group; using id will work to get the element out of a group.
Now if you use my NativeScript-Dom plugin then it is very simple; you can do:
var elements = RadListView.getElementsByClassName('someClass'); or RadListView.getElementsByTagName('Label'); or the newer functionality `
RadListView.runAgainstTagNames('Label', function(element) {
/* do something with this element */
});
And work with an array of elements that match your criteria.
Please also note that in a ListView that not all elements are preset; ListViews only have as many elements are needed to fill the ListView + 1 typically; so even if you have 2,000 items in the list view; you might only have 10 actual child ListView groups of elements. So when you did a GetElementsByTagNames('Label') you would only get 10 of them...
I am trying to make my chart 508 compliant. Hence in order to make it possible to navigate the chart using keyboard, i want to add anchor elements before every bar column. I tried doing :
d3.select("svg").insert("a",".nv-bar").attr("href","");
but it didnt work.
Can anybody suggest a better way of doing it. Thanks !
Here's one way to do it:
d3.selectAll('.nv-bar')
.each(function() {
var el = this;
d3.select(el.parentNode)
.insert('a', function(){return el;})
.attr('href', '');
});
The insert method will add elements to each item in the current selection, regardless of how many elements the "before" parameter matches.
My solution will add an anchor for each bar in the document, and takes advantage that the insert method can accept a selector string or a function that returns an element to insert before. (Although, somewhat frustratingly, it does not accept a DOM node directly)
Edit: Here's a jsfiddle with an example: https://jsfiddle.net/bgp6atzo/
I have the following code snippet (just to illustrate the question, it is not full production code) for the CkEditor plugin:
onOk: function() {
var dialog = this,
element = dialog.element;
.........
element.setStyle('width', width+'%');
element.setStyle('text-align', align)
dialog.commitContent(element);
}
In this small code snippet a modification of one dialog element occurs using setStyle() method, after which commitContent is triggered.
So, the questions are:
Do I understand correctly, that each setStyle call here triggers
element rerender (repaint) since this element already exists in
DOM?
What is the purpose of commitContent() ckEditor method? Just an event for dialog elements to store some data?
setStyle
I belive that setStyle repaints the components already existing in the DOM, have a look at this example (that I have taken from the official documentation):
var element = CKEDITOR.document.getById( 'myElement' );
element.setStyle( 'background-color', '#ff0000' );
element.setStyle( 'margin-top', '10px' );
element.setStyle( 'float', 'right' );
It first gets the element from the doc and Then sets the style, so basically it is repaiting it triggering events.
commitContent
From the official documentation:
Calls the CKEDITOR.dialog.definition.uiElement.commit method of each
of the UI elements, with the arguments passed through it. It is
usually being called when the user confirms the dialog, to process the
values.
Hope this helped you!
I have a slickgrid that, in the 'onMouseEnter' event, I do the following:
change the underlying css for the row in question
call grid.invalidateRow()
call grid.render()
These latter two calls are necessary for the new css classes to be reflected. However, I then need to capture the onMouseLeave event, and it is not fired when I move my mouse away from the cell (or row), presumably because the call to invalidate/render has placed a new DOM element under my mouse, and it's no longer the one I initially "entered."
So I have two questions:
Is there another way to have the new css classes for a given cell be rendered without calling invalidateRow/render?
If not, is there another way to do this and still have the onMouseLeave event fired?
One option is to use the setCellCssStyles function.
grid.onMouseEnter.subscribe(function(e, args){
var cell = grid.getCellFromEvent(e),
param = {},
columnCss = {};
for(index in columns){
var id = columns[index].id;
columnCss[id] = 'my_highlighter_style'
}
param[cell.row] = columnCss
args.grid.setCellCssStyles("row_highlighter", param);
})
So the above changes the background-color of every cell of the row that has been moused into. In my fiddle, the mouseLeave subscription performs a simple console.log to ensure it is still firing.
Edit: fixed the external resource usages in the fiddle for cross-browser support
This seems like a really easy question, but I can't seem to find the answer.
Now that toggle() is deprecated for click events, how would I have say a button add DOM elements on the first click, then remove those same DOM elements on the second click?
Also.... how do I remove contents from a div I have inserted content into (using load()) without removing the div itself? Using remove() removes the div.
use empty() to clear an elements inner html
As for the toggle issue, you can toggle a class on the element and test for that class:
$('#myDiv').on('click', function(){
if(! $(this).hasClass('clicked') ){
/* code for first click*/
}else{
/* code for second click*/
}
$(this).toggleClass('clicked')
})
your click would first check for the presence of the dom elements that get added (use an id perhaps).
if $('div#id of the stuff you add')
$('element exists...').remove();
else
$('div#id of where you want to add stuff').add( new code );
You can clear a div contents with:
divSomeDiv.html("");
or
divSomeDiv.empty();