I want to create battery indicator for a web app. I use the progress bar tag. The problem is that it starts from left to right and i want to be from bottom to top. The second problem is that JavaScript seems to not change anything. How to fix this problems? Note: I already read this answers: Progress Bar Fill Up Bottom-To-Top
and this which is not using progress tag:
How to show a vertical progress bar from bottom to top
navigator.getBattery().then(function(battery) {
battery.addEventListener('levelchange', function() {
document.getElementById('bat').innerHTML=((battery.level*100));
})
document.getElementById('bat').innerHTML=((battery.level*100));
});
progress#bat{
position:absolute;
top:5vh;
right:5vh;
height:90vh;
border:none;
background-color:black;
color:red;
}
<div class='window' id='battery'>
<p id='batLevel'>BatteryLevel</p>
<progress max='100' value="22" id='bat'></progress>
</div>
To resolve the "top to bottom" directional issue for the progress indicator, one solution would be to use CSS transforms in this way:
transform:rotate(90deg);
That would have the effect of rotating the <progress/> element to make the indicator track from top to bottom. You'd then flip the values of width and height to achieve the dimensions of an "upright battery".
Lastly, to cause the progress element to update with changing battery levels, you should set the value field on the bat element rather than innerHTML as you currently are to achieve automatic updates, like so:
navigator.getBattery().then(function(battery) {
battery.addEventListener('levelchange', function() {
/* Apply battery.level * 100 to value field to cause
bat element to update as expected */
document.getElementById('bat').value = battery.level * 100;
});
/* Apply battery.level * 100 to value field to cause
bat element to update as expected */
document.getElementById('bat').value = battery.level * 100;
});
progress#bat{
position:absolute;
top:5rem;
left:1rem;
border:none;
background-color:black;
color:red;
transform:rotate(90deg); /* rotation flips
perception of width and height */
height:4rem; /* height appears to be width */
width:9rem; /* width appears to be height */
}
<div>
<progress max='100' value="12" id='bat'></progress>
</div>
Related
Please refer this http://54.66.151.166/
=> Go to Canvas->Split Image->Select Size and Shape.
=> Refer various sizes given and proceed for next step.
=> Upload any image and check for the canvas effect for various sizes.
If I to develop the same kind of functionality with the using only jquery or canvas, does any have idea how can I implement this?
we are going to make an image splitting effect
HTML
<!--START THE IMAGE PARTS HOLDER-->
<div class='images_holder'>
<!--INSERT THE SAME IMAGE IN 2 DIVS, THEY BOTH HAVE image_div CLASS AND left OR right CLASS DEPENDING ON POSITION-->
<div class='image_div left'><img class='box_image' src='img.jpg' style='width:300px'/></div>
<div class='image_div right'><img class='box_image' src='img.jpg' style='width:300px'/></div>
<!-- WE USED CSS FLOAT PROPERY, SO WE NEED TO CLEAR NOW-->
<div class='clear'></div>
</div>
<!--END THE IMAGE PARTS HOLDER-->
<!--START THE TEXT-->
Just some dummy text.
<!--END THE TEXT-->
</div>
<!--END THE MAIN CONTAINER-->
CSS
.box_container{
position:relative; /* important */
width:300px; /* we must set a specific width of the container, so it doesn't strech when the image starts moving */
height:220px; /* important */
overflow:hidden; /* hide the content that goes out of the div */
/*just styling bellow*/
background: black;
color:white;
}
.images_holder{
position:absolute; /* this is important, so the div is positioned on top of the text */
}
.image_div {
position:relative; /* important so we can work with the left or right indent */
overflow:hidden; /* hide the content outside the div (this is how we will hide the part of the image) */
width:50%; /* make it 50% of the whole images_holder */
float:left; /* make then inline */
}
.rightright img{
margin-left: -100%; /* 100% is in this case 50% of the image, so this is how we show the second part of the image */
}
.clear{
clear:both;
}
JQUERY
$(document).ready(function() {
//when the user hovers over the div that contains our html...
$('.box_container').hover(function(){
//... we get the width of the div and split it by 2 ...
var width = $(this).outerWidth() / 2;
/*... and using that width we move the left "part" of the image to left and right "part"
to right by changing it's indent from left side or right side... '*/
$(this).find('.left').animate({ right : width },{queue:false,duration:300});
$(this).find('.right').animate({ left : width },{queue:false,duration:300});
}, function(){
//... and when he hovers out we get the images back to their's starting position using the same function... '
$(this).find('.left').animate({ right : 0 },{queue:false,duration:300});
$(this).find('.right').animate({ left : 0 },{queue:false,duration:300});
//... close it and that's it
});
});
I have a scrollable div container fits multiple "pages" (or div's) inside of it's container.
My goal is to, at any given moment, figure out where inside my red container does it reach the top of my scrollable container. So it can be a constant on scroll event, or a button that triggers this task.
So for example. If I have a absolute div element inside one of my red boxes at top:50px. And if I scroll to where that div element reaches the top of my scrollable container. The trigger should say that I am at 50px of my red container.
I'm having a hard time grasping how to accomplish this but I've tried things like:
$("#pageContent").scroll(function(e) {
console.log($(this).scrollTop());
});
But it doesn't take into account the separate pages and I don't believe it it completely accurate depending on the scale. Any guidance or help would be greatly appreciated.
Here is my code and a jsfiddle to better support my question.
Note: If necessary, I use scrollspy in my project so I could target which red container needs to be checked.
HTML
<div id="pageContent" class="slide" style="background-color: rgb(241, 242, 247); height: 465px;">
<div id="formBox" style="height: 9248.627450980393px;">
<div class="trimSpace" style="width: 1408px; height: 9248.627450980393px;">
<div id="formScale" style="width: 816px; -webkit-transform: scale(1.7254901960784315); display: block;">
<form action="#" id="XaoQjmc0L51z_form" autocomplete="off">
<div class="formContainer" style="width:816px;height:1056px" id="xzOwqphM4GGR_1">
<div class="formContent">
<div class="formBackground">
<div style="position:absolute;top:50px;left:100px;width:450px;height:25px;background-color:#fff;color:#000;">When this reaches the top, the "trigger" should say 50px"</div>
</div>
</div>
</div>
<div class="formContainer" style="width:816px;height:1056px" id="xzOwqphM4GGR_2">
<div class="formContent">
<div class="formBackground"><div style="position:absolute;top:50px;left:100px;width:450px;height:25px;background-color:#fff;color:#000;">This should still say 50px</div></div>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
CSS
#pageContent {
position:relative;
padding-bottom:20px;
background-color:#fff;
z-index:2;
overflow:auto;
-webkit-overflow-scrolling: touch;
-webkit-transform: translate(0, 0);
-moz-transform: translate(0, 0);
-ms-transform: translate(0, 0);
transform: translate(0, 0);
}
#formBox {
display: block;
position: relative;
height: 100%;
padding: 15px;
}
.trimSpace {
display: block;
position: relative;
margin: 0 auto;
padding: 0;
height: 100%;
overflow: hidden;
}
#formScale::after {
display: block;
content:'';
padding-bottom:5px;
}
#formScale {
position:relative;
width:816px;
margin:0;
-webkit-transform-origin: 0 0;
-moz-transform-origin: 0 0;
transform-origin: 0 0;
-ms-transform-origin: 0 0;
}
.formContainer {
position:relative;
margin : 0 auto 15px auto;
padding:0;
}
.formContent {
position:absolute;
width:100%;
height:100%;
}
.formBackground {
width:100%;
height:100%;
background-color:red;
}
JS
var PAGEWIDTH = 816;
$(window).resize(function (e) {
zoomProject();
resize();
});
function resize() {
$("#pageContent").css('height', window.innerHeight - 45 + 'px');
}
function zoomProject() {
var maxWidth = $("#formBox").width(),
percent = maxWidth / PAGEWIDTH;
$("#formScale").css({
'transform': 'scale(' + percent + ')',
'-moz-transform': 'scale(' + percent + ')',
'-webkit-transform': 'scale(' + percent + ')',
'-ms-transform': 'scale(' + percent + ')'
});
$(".trimSpace").css('width', (PAGEWIDTH * percent) + 'px');
$("#formBox, .trimSpace").css('height', ($("#formScale").height() * percent) + 'px');
}
zoomProject();
resize();
EDIT:
I don't think I am conveying a good job at relaying what I want to accomplish.
At the moment there are two .formContainer's. When I scroll #pageContainer, the .formContainer divs move up through #pageContainer.
So what I want to accomplish is, when a user clicks the "ME" button or #click (as shown in the fiddle below), I'd like to know where in that particular .formContainer, is it touching the top of #pageContainer.
I do use scroll spy in my real world application so I know which .formContainer is closest to the top. So if you just want to target one .formContainer, that is fine.
I used these white div elements as an example. If I am scrolling #pageContainer, and that white div element is at the top of screen as I am scrolling and I click on "ME", the on click trigger should alert to me that .formContainer is touching the top of #pageContainer at 50px from the top. If, the the red container is just touching the top of #pageContainer, it should say it is 0px from the top.
I hope that helps clear up some misconception.
Here is an updated jsfiddle that shows the kind of action that I want to happen.
I am giving this a stab because I find these things interesting. It might just be a starting point since I have a headache today and am not thinking straight. I'd be willing to bet it can be cleaned up and simplified some.
I also might be over-complicating the approach I took, getting the first visible form, and the positioning. I didn't use the getBoundingClientRect function either.
Instead, I approached it trying to account for padding and margin, using a loop through parent objects up to the pageContent to get the offset relative to that element. Because the form is nested a couple levels deep inside the pageContent element you can't use position(). You also can't use offset() since that changes with scroll. The loop approach allowed me to factor the top margin/padding in. I haven't looked at the other solutions proposed fully so there might be a shorter way to accomplish this.
Keeping in mind that the scale will affect the ACTUAL location of the child elements, you have to divide by your scale percentage when getting the actual location. To do that I moved the scalePercentage to a global var so it was usable by the zoom function and the click.
Here's the core of what I did. The actual fiddle has more logging and junk:
var visForm = getVisibleForm();
var formTop = visForm.position().top;
var parents = visForm.parentsUntil('#pageContent');
var truOffset = 0;
parents.each(function() {
truOffset -= $(this).position().top;
});
// actual location of form relative to pageContent visible pane
var formLoc = truOffset - formTop;
var scaledLoc = formLoc / scalePercent;
Updated Fiddle (forgot to account for scale in get func): http://jsfiddle.net/e6vpq9c8/5/
If I understand your question correctly, what you want is to catch when certain descendant elements reach the top of the outer container, and then determine the position of the visible "page" (div with class formContainer) relative to the top.
If so, the first task is to mark the specific elements that could trigger this:
<div class='triggerElement' style="position:absolute;top:50px;left:100px;width:450px;height:25px;background-color:#fff;color:#000;">When this reaches the top, the "trigger" should say 50px"</div>
Then the code:
// arbitrary horizontal offset - customize for where your trigger elements are placed horizontally
var X_OFFSET = 100;
// determine once, at page load, where outer container is on the page
var outerContainerRect;
$(document).ready(function() {
outerContainerRect = $("#pageContent").get(0).getBoundingClientRect();
});
// when outer container is scrolled
$("#pageContent").scroll(function(e) {
// determine which element is at the top
var topElement = $(document.elementFromPoint(outerContainerRect.left+X_OFFSET, outerContainerRect.top));
/*
// if a trigger element
if (topElement.hasClass("triggerElement")) {
// get trigger element's position relative to page
console.log(topElement.position().top);
}
*/
var page = topElement.closest(".formContainer");
if (page.length > 0) {
console.log(-page.get(0).getBoundingClientRect().top);
}
});
EDIT: Changed code to check formContainer elements rather than descendant elements, as per your comment.
http://jsfiddle.net/j6ybgf58/23/
EDIT #2: A simpler approach, given that you know which formContainer to target:
$("#pageContent").scroll(function(e) {
console.log($(this).scrollTop() - $("#xzOwqphM4GGR_1").position().top);
});
http://jsfiddle.net/rL4Ly3yy/5/
However, it still gives different results based on the size of the window. This seems unavoidable - the zoomProject and resize functions are explicitly resizing the content, so you would have to apply the inverse transforms to the number you get from this code if you want it in the original coordinate system.
I do not fully understand what it is that you are needing, but if i am correct this should do the trick
$("#pageContent").scroll(function(e) {
// If more then 50 pixels from the top has been scrolled
// * if you want it to only happen at 50px, just execute this once by removing the scroll listener on pageContent
if((this.scrollHeight - this.scrollTop) < (this.scrollHeight - 50)) {
alert('it is');
}
});
ScrollHeight is the full height of the object including scrollable pixels.
ScrollTop is the amount of pixels scrolled from the top.
You can use waypoints to detect the position of divs based on where you're scrolling.
Here is a link to their official website's example: http://imakewebthings.com/waypoints/shortcuts/inview/
Currently the zooming action is illustrate like the top graph. I would like to achieve the zoom action in bottom graph. The point is the zoom origin .Currently the codes are:
$("#popup").css("width",ui.value+"%");
$("#largeText").css("width",ui.value+"%");
$("#largeImg").css("width",ui.value+"%");
Where UI value is the width in percantage (eg. width : 100% , width : 200%) The height is set as auto.
Thanks
I don't know if that will give you answer but heres an exemple of an animation
Here's the exemple: http://jsfiddle.net/pRccr/6/
<div class="global">
<div class="item"></div>
CSS ::::::
.global {
width:600px;
height:600px;
background-color:#ff00ff;
position:relative;
}
.item{
position:absolute;
width:3px;
height:3px;
background-color:#000;
}
JAVASCRIPT :::::
var start_size = 20;
var timer=setInterval(function(){
start_size ++;
$('.item').css('height',start_size+'px');
$('.item').css('width',start_size+'px');
$('.item').css('top', ($('.global').height()/2 - $('.item').height()/2) +'px');
$('.item').css('left', ($('.global').width()/2 - $('.item').width()/2)+'px');
}, 50);
This will depend on your elements' positioning on the page.
I expect, to get the result you want in your image, you will have to center the element on your page both vertically and horizontally.
margin:auto auto;
width:?px;
height:?px;
I have an image which i want to fill with some color based on a dynamically changing value that represents percentage, e.g. if the value is 50% half of the image should be colored.
How to achieve that using JavaScript (jQuery can be used)?
You can accomplish that by utilizing the clip CSS property, and a little bit of added markup to serve an underlaying container for the unrevealing background color.
Abstract
Place an element underneath the image for the faux color fill, and set its dimensions and position to match the images'. Then use JavaScript to clip the image dynamically - thus revealing the underlying color - by altering the clip value of the image element according to your needs (you can, of course, control each offset separately, e.g. left, bottom).
Note: To achieve specifically what you desire you can alter the underlying element to contain another image that suits your needs (i.e. a top image of an empty barrel, and a bottom image of a full one).
Implementation
In this example a slider is used to trigger the value change.
Markup
<input type="range" min="0" max="100" id="slider" value="100" />
<div id="underlay"></div>
<img src="http://placekitten.com/500/207" id="image" />
Styles
#slider,
#image,
#underlay {
/* absolute positioning is mandatory for clipped elements (#image) */
position: absolute;
left: 50px;
width: 500px;
}
#image,
#underlay {
top: 100px;
height: 207px;
}
#image {
/* initial clip state */
clip: rect(auto, auto, auto, 500px);
}
#slider {
top: 50px;
}
#underlay {
background-color: #4C76A5;
}
Functionality
var img = document.getElementById('image');
var sld = document.getElementById('slider');
sld.addEventListener('change', function(e) {
// get the slider value
var val = e.srcElement.value;
// calc the percentage to pass an absolute length value to the clip property
var perc = img.width / 100 * val;
// set the images' left offset clip accordingly
img.style.clip = 'rect(auto, auto, auto, ' + perc + 'px)';
});
Live Demo
On jsFiddle
References
clip on Mozilla Developer Network
Browser support
I'm trying to develop a slide gallery with image tooltips according to this design:
What I need to develop is a slider controlled by two buttons, each time a button is pressed the slider's content must move a width of the slider or the width of the content left on that side, whichever is smaller. Upon mouse entering an image inside the slider the full-size version must be displayed as a tooltip.
Here's a fiddle of my solution so far, the problem I'm having is that images that don't fully fit into view plus the hidden area to the left get moved to a new line. You can see the problem by clicking the
"Show content size" button, the width of the content element will be equal to the width of the container element + content element's margin-left.
Bonus points if you can suggest an algorithm for moving the content to the right, I've got left figured out to a T (or so I think, anyway), but right is going to take a little more work (it doesn't check whether the end of the content has been reached). Update: It seems I can't implement proper movement to the right until the other issue is resolved, here's the algorithm I came up with, I can't measure "left to display" if I can't measure the actual width of the content element.
I created something you might like:
gallery demo
The gallery does not scroll the full gallery width by default (you can change that) cause some initially cut-off images at the right side, after a 'full' slide would result cut-off again, just on the other side of our gallery. You have for that cause the beKind variable. Adjust it as you like.
It hides the buttons if there's not enough content to make the gallery usable.
The gallery calculates the remaining space to scroll.
Once the slider end reached - the left/right buttons make the gallery jump to the beginning/end, so that are always usable. (Seems kinda weird to have a button... but that does nothing right? ;) )
The Tooltip has a hover-intent built in, to not piss off our users if they unintentionally hovered our gallery: (the tooltip fades in if the hover is registered for more that 120ms. Fair timing. I like it.)
As pointed out in your comment now the tooltip will not go off the screen.
jQ:
// Slide Kind Gallery - by roXon // non plugin v. // CC 2012.
$(window).load(function(){
var galW = $('#gallery').outerWidth(true),
beKind = 120, // px substracted to the full animation to allow some images to be fully visible - if initially partly visible.
sumW = 0;
$('#slider img').each(function(){
sumW += $(this).outerWidth(true);
});
$('#slider').width(sumW);
if(sumW <= galW){ $('.gal_btn').remove(); }
function anim(dir){
var sliderPos = Math.abs($('#slider').position().left),
rem = dir ==='-=' ? rem = sumW-(sliderPos+galW) : rem = sliderPos,
movePx = rem<=galW ? movePx = rem : movePx = galW-beKind;
if( movePx <= 10){
movePx = dir==='-=' ? movePx=rem : movePx = galW-sumW;
dir = '';
}
$('#slider').stop(1).animate({left: dir+''+movePx },1000);
}
$('.gal_btn').on('click', function(){
var doit = $(this).hasClass('gal_left') ? anim('+=') : anim('-=');
});
});
And the tooltip script:
// Addon // Tooltip script
var $tt = $('#tooltip');
var ttW2 = $tt.outerWidth(true)/2;
var winW = 0;
function getWW(){ winW = $(window).width(); }
getWW();
$(window).on('resize', getWW);
$('#slider img').on('mousemove',function(e){
var m = {x: e.pageX, y: e.pageY};
if( m.x <= ttW2 ){
m.x = ttW2;
}else if( m.x >= (winW-ttW2) ){
m.x = winW-ttW2;
}
$tt.css({left: m.x-ttW2, top: m.y+10});
}).hover(function(){
$clon = $(this).clone();
var t = setTimeout(function() {
$tt.empty().append( $clon ).stop().fadeTo(300,1);
},120);
$(this).data('timeout', t);
},function(){
$tt.stop().fadeTo(300,0,function(){
$(this).hide();
});
clearTimeout($(this).data('timeout'));
});
HTML
(Place the #tooltip div after the body tag)
<div id="tooltip"></div>
<div id="gallery_container">
<div id="gallery">
<div id="slider">
<img src="" alt="" />
<img src="" alt="" />
</div>
</div>
<div class="gal_left gal_btn">◀</div>
<div class="gal_right gal_btn">▶</div>
</div>
CSS:
/*GALLERY*/
#gallery_container{
position:relative;
margin:0 auto;
width:600px;
padding:0 30px; /*for the buttons */
background:#eee;
border-radius:5px;
box-shadow: 0 2px 3px #888;
}
#gallery{
position:relative;
height:100px;
width:600px;
overflow:hidden;
}
#slider{
position:absolute;
left:0px;
height:100px;
}
#slider img{
height:100.999%; /* fixes some MOZ image resize inconsistencies */
float:left;
cursor:pointer;
border-right:3px solid transparent; /* instead of margin that could leat to some wrong widths calculations. */
}
.gal_btn{
position:absolute;
top:0px;
width:30px; /*the container padding */
height:40px;
padding:30px 0;
text-align:center;
font-size:30px;
cursor:pointer;
}
.gal_left{left:0px;}
.gal_right{right:0px;}
/* end GALLERY */
/* TOOLTIP ADDON */
#tooltip{
position:absolute;
z-index:100;
width:300px;
padding:10px;
background:#fff;
background: rgba(255,255,255,0.3);
box-shadow:0px 3px 6px -2px #111;
display:none;
}
#tooltip *{
width:100%;
vertical-align:middle;
}
/* end TOOLTIP ADDON */
Hope you'll like it, and you learned some useful UI design tricks.
By the way, if you want to populate your ALT attributes (Search engines like it!) you can also grab that text and make it appear inside the tooltip like here!:
demo with text inside the tooltip
Happy coding.
I don't know if I understand correctly your problem. If you set a width wide enough to .scroll-content div, images wouldn't go to the "next line". So a solution would be to set a width with css. If not, you could use jquery to determine the total width of all the images and give it to the .scroll-content div. Calculate total width of Children with jQuery