I may not have described the issue accurately with the title, but it's easier to explain here:
I have a button that has an icon image contained within it. I need to get rid of the grey box around that icon and keep the icon itself, along with the button functionality. I assigned the button a second class called "nogray", and in my styling sheet I set opacity to 0.
However, this got rid of the entire button, along with the little orange trash bin icon, which I need to be visible. Essentially, I need the button to function the same way, just with the orange icon and no grey box. In this screenie, you can see the buttons at the top of each bulletin note.
Here is the button code in the bulletin notes view:
<button class ="remove-card nogray" id="#item.BulletinId" type="button"><i
class="fa fa-trash"></i></button>
And here is the css for the button:
i.fa.fa-trash::before {
content: "\f1f8";
}
.remove-card.nogray {
opacity:0;
}
(i.fa.fa-trash::before targets the trash icon, and .remove-card.nogray targets the outer gray area. However, I suspect that the latter is targetting the entire button because setting the opacity to 0 affects both gray area and icon.
How would I tweak the button code so that the opacity is 0 only for the grey, and not the icon? I've tried changing the order of the code element by element, but a lot of it is guesswork because this is a team effort and I did not personally write the button code. I'd also like to apologize in advance if this is an impossible question to answer; if there's some detail you need to know, please tell me and I will edit this to include it.
Thank you very much for any suggestions!
I realized I was targeting the wrong lines of code in my css. There was an ActionLink that a teammate commented out, and I assigned the classes from that to my original button code and was able to target the button that way instead.
Problem
I have a MenuItem that by default is initialized with drop shadow—which I’d rather not have. I’ve got a css file set up, but can’t seem to figure out what’s necessary to remove the drop shadow.
See how there's a rather ugly drop shadow down below that? I'd like the whole menu button to be flat, containing no borders nor shadows whatsoever.
The reason the background color of the various different elements in the image are red is due to my attempts in styling it differently—the background color does indeed work the way I’d expect it to.
What I’ve tried so far
.menu-item
{
-fx-effect: null;
-fx-drop-shadow: null;
}
Neither one of the properties seem to effect the outcome of my program.
I've also tried styling the menu, but that only appears to style the actual “Plugins” button.
Moreover
I can’t seem to think of any better solutions compared to those I’ve already tried. Perhaps someone can point me in the right direction?
Once again, I’m attempting to make the menu items look flat.
You need to add the effect to the context menu, e.g.
.menu-bar .context-menu {
-fx-effect: null;
}
BTW: There is no -fx-drop-shadow property.
I have read the answers to the other [very] related questions, but I thought I would pose it again since polymer updates might have been made.
I can change all the colors in [dart] paper-scaffold (core-scaffold) - the menu and toolbar, but I cannot change the color of the header across the top. It is always background-color=#526E9C. The only way I can do it is change the core-toolbar style in the generated (using pub build) index.html. And this one line change sets the color across the whole header across the browser window (which is what I want). So I can get by.
When I do style:
core-toolbar{
background-color: #7A418D;
color: #FFF;
}
it only changes the color above the drawer, and not across the whole top. It's very mysterious why it just does that bit!
I have tried shadow-shim, core-scaffold::shadowdom.. etc. I have tried changing the /src/ core-scaffold.html - and more, where this pervasive value #526E9C appears.
In my website (sekpa.org) it shows this blue (#526E9C) half.
Is it just a bug? If it is, I'd be very happy in that knowledge!
Thanks Steve
There are two core-header-panels inside a paper-scaffold.
Each core-header-panel contains one core-toolbar.
The left collapsible core-header-panel as well as its inner core-toolbar are sitting in the normal Light DOM, and that's why you can change its color by specifying the css like that.
However, the right core-header-panel and core-toolbar are inside paper-scaffold's Shadow DOM. In order to change the color of this core-toolbar, you need to do something like -
paper-scaffold::shadow core-toolbar {
background: #7A418D;
color: #fff;
}
For more info, please refer to this link.
This really bugs me - a lot.
After wading through google maps v3 generated client side code in firebug, I'm about ready to drive down the street and give some of these engineers a piece of my mind... arrrgh :P
The infowWindow class produces HTML that personally I would think is simply nuts. maybe someone can help me make sense of it.
The infowWindow HTML structure is like this:
#map_canvas > div > div > div > div > div // 5 levels of elements,
no big deal here, ok...
> div // top left corner
div // top right corner
div // bottom left corner
div // bottom right corner
// now comes fun stuff for the speech bubble arrow:
div
div
div
div
div
div
div
div
div
div
// the 10 divs above are stacked diagonally with odd sizes to make this arrow.
i'm sorry but WHY?!? is it done like that? I suppose they wanted the user to be
able to grab the map even right next to the arrow. Think about this: do users
really need to be able to not grab the arrow? if grabbing the arrow causes map pan,
as is the case for the shadow images, would that really be a problem?
div // bottom middle for image background border or something
div // top middle
div // middle
div // bottom middle, again
div // entire block of the infoWindow, probably the container
> img // close box
div // center block with the contents of the infoWindow
div // text content container
WOW - thats nuts!
notice there is no real semantic structure, and - gosh, dare I have such an
assumption - no class names anywhere, nothing. I figured maybe they have some
kind of 9-slice box going on and then produce the arrow separately; I mean,
the image sprite in iw3.png sure isn't going to be the problem here.
I dearly hope someone who has an effect on this api comes across this and
hopefully google will eventually find a way to solve this such that custom
infoWindow visuals are as straightforward as markers.
Thanks for tuning in! happy commenting.
meanwhile I shall use a hack to get to these crazy divs and make them do my bidding.
earlier I commented on some other post and I think it shouldn't be too much to ask for a method in the API that lets you use custom UI without resorting to a near-duplication of the whole window object as is currently necessary (see google extension classes v3).
google.maps.infoWindow.setStyle({
'topleft' : {
'background' : 'url(images/windowsprite.png) 0 0 no-repeat',
'width' : '10px',
'height' : '10px'
},
'topRight' : {
...etc...
}
...etc...
})
Have you tried InfoBox?
http://googlegeodevelopers.blogspot.com/2010/04/infobox-10-highly-customizable.html
or InfoBubble?
http://google-maps-utility-library-v3.googlecode.com/svn/trunk/infobubble/examples/example.html/
They both give you a bit more control over the appearance of infowindows, while still abstracting some of the complicated parts.
The lack of classes on elements is a (good) design decision for an API. It eliminates the potential for clashes with user defined classes.
After much trial and eror I decided the best way to resolve this is to use OverlayView class and simply custom build a container. Well, "simply" is an understatement, but it works. And now I have full control over layout and functionality.
You try styling with CSS? The below example shows this. This is the most straight forward way to change the UI.
http://code.google.com/apis/maps/documentation/javascript/overlays.html#InfoWindows
I have a div that has background:transparent, along with border. Underneath this div, I have more elements.
Currently, I'm able to click the underlying elements when I click outside of the overlay div. However, I'm unable to click the underlying elements when clicking directly on the overlay div.
I want to be able to click through this div so that I can click on the underlying elements.
Yes, you CAN do this.
Using pointer-events: none along with CSS conditional statements for IE11 (does not work in IE10 or below), you can get a cross browser compatible solution for this problem.
Using AlphaImageLoader, you can even put transparent .PNG/.GIFs in the overlay div and have clicks flow through to elements underneath.
CSS:
pointer-events: none;
background: url('your_transparent.png');
IE11 conditional:
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='your_transparent.png', sizingMethod='scale');
background: none !important;
Here is a basic example page with all the code.
Yes, you CAN force overlapping layers to pass through (ignore) click events.
PLUS you CAN have specific children excluded from this behavior...
You can do this, using pointer-events
pointer-events influences the reaction to click-, tap-, scroll- und hover events.
In a layer that should ignore / pass-through mentioned events you set
pointer-events: none;
Children of that unresponsive layer that need to react mouse / tap events again need:
pointer-events: auto;
That second part is very helpful if you work with multiple overlapping div layers (probably some parents being transparent), where you need to be able to click on child elements and only that child elements.
Example usage:
.parent {
pointer-events:none;
}
.child {
pointer-events:auto;
}
<div class="parent">
I'm unresponsive
I'm clickable again, wohoo !
</div>
Allowing the user to click through a div to the underlying element depends on the browser. All modern browsers, including Firefox, Chrome, Safari, and Opera, understand pointer-events:none.
For IE, it depends on the background. If the background is transparent, clickthrough works without you needing to do anything. On the other hand, for something like background:white; opacity:0; filter:Alpha(opacity=0);, IE needs manual event forwarding.
See a JSFiddle test and CanIUse pointer events.
I'm adding this answer because I didn’t see it here in full. I was able to do this using elementFromPoint. So basically:
attach a click to the div you want to be clicked through
hide it
determine what element the pointer is on
fire the click on the element there.
var range-selector= $("")
.css("position", "absolute").addClass("range-selector")
.appendTo("")
.click(function(e) {
_range-selector.hide();
$(document.elementFromPoint(e.clientX,e.clientY)).trigger("click");
});
In my case the overlaying div is absolutely positioned—I am not sure if this makes a difference. This works on IE8/9, Safari Chrome and Firefox at least.
Hide overlaying the element
Determine cursor coordinates
Get element on those coordinates
Trigger click on element
Show overlaying element again
$('#elementontop').click(e => {
$('#elementontop').hide();
$(document.elementFromPoint(e.clientX, e.clientY)).trigger("click");
$('#elementontop').show();
});
I needed to do this and decided to take this route:
$('.overlay').click(function(e){
var left = $(window).scrollLeft();
var top = $(window).scrollTop();
//hide the overlay for now so the document can find the underlying elements
$(this).css('display','none');
//use the current scroll position to deduct from the click position
$(document.elementFromPoint(e.pageX-left, e.pageY-top)).click();
//show the overlay again
$(this).css('display','block');
});
I currently work with canvas speech balloons. But because the balloon with the pointer is wrapped in a div, some links under it aren't click able anymore. I cant use extjs in this case.
See basic example for my speech balloon tutorial requires HTML5
So I decided to collect all link coordinates from inside the balloons in an array.
var clickarray=[];
function getcoo(thatdiv){
thatdiv.find(".link").each(function(){
var offset=$(this).offset();
clickarray.unshift([(offset.left),
(offset.top),
(offset.left+$(this).width()),
(offset.top+$(this).height()),
($(this).attr('name')),
1]);
});
}
I call this function on each (new) balloon. It grabs the coordinates of the left/top and right/down corners of a link.class - additionally the name attribute for what to do if someone clicks in that coordinates and I loved to set a 1 which means that it wasn't clicked jet. And unshift this array to the clickarray. You could use push too.
To work with that array:
$("body").click(function(event){
event.preventDefault();//if it is a a-tag
var x=event.pageX;
var y=event.pageY;
var job="";
for(var i in clickarray){
if(x>=clickarray[i][0] && x<=clickarray[i][2] && y>=clickarray[i][1] && y<=clickarray[i][3] && clickarray[i][5]==1){
job=clickarray[i][4];
clickarray[i][5]=0;//set to allready clicked
break;
}
}
if(job.length>0){
// --do some thing with the job --
}
});
This function proofs the coordinates of a body click event or whether it was already clicked and returns the name attribute. I think it is not necessary to go deeper, but you see it is not that complicate.
Hope in was enlish...
Another idea to try (situationally) would be to:
Put the content you want in a div;
Put the non-clicking overlay over the entire page with a z-index higher,
make another cropped copy of the original div
overlay and abs position the copy div in the same place as the original content you want to be clickable with an even higher z-index?
Any thoughts?
I think the event.stopPropagation(); should be mentioned here as well. Add this to the Click function of your button.
Prevents the event from bubbling up the DOM tree, preventing any parent handlers from being notified of the event.
Just wrap a tag around all the HTML extract, for example
<a href="/categories/1">
<img alt="test1" class="img-responsive" src="/assets/photo.jpg" />
<div class="caption bg-orange">
<h2>
test1
</h2>
</div>
</a>
in my example my caption class has hover effects, that with pointer-events:none; you just will lose
wrapping the content will keep your hover effects and you can click in all the picture, div included, regards!
An easier way would be to inline the transparent background image using Data URIs as follows:
.click-through {
pointer-events: none;
background: url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7);
}
I think that you can consider changing your markup. If I am not wrong, you'd like to put an invisible layer above the document and your invisible markup may be preceding your document image (is this correct?).
Instead, I propose that you put the invisible right after the document image but changing the position to absolute.
Notice that you need a parent element to have position: relative and then you will be able to use this idea. Otherwise your absolute layer will be placed just in the top left corner.
An absolute position element is positioned relative to the first parent
element that has a position other than static.
If no such element is found, the containing block is html
Hope this helps. See here for more information about CSS positioning.
You can place an AP overlay like...
#overlay {
position: absolute;
top: -79px;
left: -60px;
height: 80px;
width: 380px;
z-index: 2;
background: url(fake.gif);
}
<div id="overlay"></div>
just put it over where you dont want ie cliked. Works in all.
This is not a precise answer for the question but may help in finding a workaround for it.
I had an image I was hiding on page load and displaying when waiting on an AJAX call then hiding again however...
I found the only way to display my image when loading the page then make it disappear and be able to click things where the image was located before hiding it was to put the image into a DIV, make the size of the DIV 10x10 pixels or small enough to prevent it causing an issue then hiding the containing div. This allowed the image to overflow the div while visible and when the div was hidden, only the divs area was affected by inability to click objects beneath and not the whole size of the image the DIV contained and was displaying.
I tried all the methods to hide the image including CSS display=none/block, opacity=0, hiding the image with hidden=true. All of them resulted in my image being hidden but the area where it was displayed to act like there was a cover over the stuff underneath so clicks and so on wouldn't act on the underlying objects. Once the image was inside a tiny DIV and I hid the tiny DIV, the entire area occupied by the image was clear and only the tiny area under the DIV I hid was affected but as I made it small enough (10x10 pixels), the issue was fixed (sort of).
I found this to be a dirty workaround for what should be a simple issue but I was not able to find any way to hide the object in its native format without a container. My object was in the form of etc. If anyone has a better way, please let me know.
I couldn't always use pointer-events: none in my scenario, because I wanted both the overlay and the underlying element(s) to be clickable / selectable.
The DOM structure looked like this:
<div id="outerElement">
<div id="canvas-wrapper">
<canvas id="overlay"></canvas>
</div>
<!-- Omitted: element(s) behind canvas that should still be selectable -->
</div>
(The outerElement, canvas-wrapper and canvas elements have the same size.)
To make the elements behind the canvas act normally (e.g. selectable, editable), I used the following code:
canvasWrapper.style.pointerEvents = 'none';
outerElement.addEventListener('mousedown', event => {
const clickedOnElementInCanvas = yourCheck // TODO: check if the event *would* click a canvas element.
if (!clickedOnElementInCanvas) {
// if necessary, add logic to deselect your canvas elements ...
wrapper.style.pointerEvents = 'none';
return true;
}
// Check if we emitted the event ourselves (avoid endless loop)
if (event.isTrusted) {
// Manually forward element to the canvas
const mouseEvent = new MouseEvent(event.type, event);
canvas.dispatchEvent(mouseEvent);
mouseEvent.stopPropagation();
}
return true;
});
Some canvas objects also came with input fields, so I had to allow keyboard events, too.
To do this, I had to update the pointerEvents property based on whether a canvas input field was currently focused or not:
onCanvasModified(canvas, () => {
const inputFieldInCanvasActive = // TODO: Check if an input field of the canvas is active.
wrapper.style.pointerEvents = inputFieldInCanvasActive ? 'auto' : 'none';
});
it doesn't work that way. the work around is to manually check the coordinates of the mouse click against the area occupied by each element.
area occupied by an element can found found by 1. getting the location of the element with respect to the top left of the page, and 2. the width and the height. a library like jQuery makes this pretty simple, although it can be done in plain js. adding an event handler for mousemove on the document object will provide continuous updates of the mouse position from the top and left of the page. deciding if the mouse is over any given object consists of checking if the mouse position is between the left, right, top and bottom edges of an element.
Nope, you can't click ‘through’ an element. You can get the co-ordinates of the click and try to work out what element was underneath the clicked element, but this is really tedious for browsers that don't have document.elementFromPoint. Then you still have to emulate the default action of clicking, which isn't necessarily trivial depending on what elements you have under there.
Since you've got a fully-transparent window area, you'll probably be better off implementing it as separate border elements around the outside, leaving the centre area free of obstruction so you can really just click straight through.