jQuery slider plugin values not working when fetching from database? - php

I am doing a module in Prestashop. I have taken fancytransection as slider. In the slider as per documentation I am using all these values to show slider
effect: '', // wave, zipper, curtain
width: 500, // width of panel
height: 332, // height of panel
strips: 20, // number of strips
delay: 5000, // delay between images in ms
stripDelay: 50, // delay beetwen strips in ms
titleOpacity: 0.7, // opacity of title
titleSpeed: 1000, // speed of title appereance in ms
position: 'alternate', // top, bottom, alternate, curtain
direction: 'fountainAlternate', // left, right, alternate, random, fountain, fountainAlternate
navigation: false, // prev and next navigation buttons
links: false // show images as links
Here I am fetching the value of width,height and navigation from the database. So that one can manually set values for all this.
This is working for width and hight that I am getting from the database. But the value for navigation which I am getting either true or false from the database is not working. Everytime it is showing the slider navigation.
Here is the codes that have been used in my .tpl file
<script>
var result_navigation="{$result_navigation}";
var result_width="{$result_width}";
var result_height="{$result_height}";
$.fn.jqFancyTransitions.defaults = {
width: result_width, // width of panel
height: result_height, // height of panel
strips: 10, // number of strips
delay: 5000, // delay between images in ms
stripDelay: 50, // delay beetwen strips in ms
titleOpacity: 0.7, // opacity of title
titleSpeed: 1000, // speed of title appereance in ms
position: 'alternate', // top, bottom, alternate, curtain
direction: 'fountainAlternate', // left, right, alternate, random, fountain, fountainAlternate
effect: '', // curtain, zipper, wave
navigation: result_navigation, // prev next and buttons
links : true // show images as links
};
</script>
Here the value for width as result_width and height as result_height has been working fine. But the value for result_navigation is fetching fine with false or true value. But when I am using that in the code its not working. It is showing the navigation just like the value is true. value for false is not working here. Can someone kindly tell me how to solve this issue? Any help and suggestions will be really appreciable. Thanks

Check the output of {$result_navigation}. As you're using quotes, you're passing a string, which will be seen as true-ish in the js code. You should try something like this:
<script>
// if you use a boolean
var result_navigation = {if $result_navigation}true{else}false{/if};
// if you use `true` or `false` as strings - but that's just weird
var result_navigation = {if $results_navigation == 'true'}true{else}false{/if};
</script>

Related

Line series graphs gives error on resizing - highcharts

I have used highcharts single line series graph. It seems to work all fine but when I resize the page (just to check responsiveness or just it on mobile). The values disappear. I can see error in console logs.
That's how I generate the chart
Highcharts.stockChart('nav-chart', {
tooltip: {
pointFormat:"{point.y:.3f}\u20ac"
},
chart: {
type: 'line',
zoomType: 'x',
pinchType: 'x',
panning: false,
<?php if (is_front_page()){ ?>
height: 700,
<?php } else { ?>
height: 500,
events: {
load: updateLegendLabel
}
<?php } ?>
},
updateLegendLabel has some computation that generates the labels.
var chrt = !this.chart ? this : this.chart;
chrt.update({
legend: {
useHTML: true,
symbolPadding: 0,
symbolWidth: 0,
symbolHeight: 0,
symbolRadius: 0,
labelFormatter: function() {
var lastVal = this.yData[this.yData.length - 1],
chart = this.chart,
xAxis = this.xAxis,
points = this.points,
avg = 0,
counter = 0,
min, max;
... there is some business logic down there
points var becomes null when I resize the page. Why is that so? Do I need to reupdate dataset or what?
Nesting Server and Client side logic is not good. Better is to seperate logic using like this. Bellow one is just for idea not a exact code. But can be fixed if you provide complete code separating your server logic from client side logic.
<script>
//before graph area started
var dataA = '<?php echo $dataA;?>';
var dataB = '<?php echo $dataB;?>';
//graph logic started
// your graph code which can use above variables
// but the variable need to be available can be evaluated from your draw script.
</script>
then use these variables in your graph script.
Because on resizing of browser, graph is redrawing and its looking data is not available when graph is redrawing. But if above logic will be used then data will be available on every redraw

How to modify parameter of a JS script inside PHP file depending on screen size - wordpress [duplicate]

How can I get windowWidth, windowHeight, pageWidth, pageHeight, screenWidth, screenHeight, pageX, pageY, screenX, screenY which will work in all major browsers?
You can get the size of the window or document with jQuery:
// Size of browser viewport.
$(window).height();
$(window).width();
// Size of HTML document (same as pageHeight/pageWidth in screenshot).
$(document).height();
$(document).width();
For screen size you can use the screen object:
window.screen.height;
window.screen.width;
This has everything you need to know: Get viewport/window size
but in short:
var win = window,
doc = document,
docElem = doc.documentElement,
body = doc.getElementsByTagName('body')[0],
x = win.innerWidth || docElem.clientWidth || body.clientWidth,
y = win.innerHeight|| docElem.clientHeight|| body.clientHeight;
alert(x + ' × ' + y);
Fiddle
Please stop editing this answer. It's been edited 22 times now by different people to match their code format preference. It's also been pointed out that this isn't required if you only want to target modern browsers - if so you only need the following:
const width = window.innerWidth || document.documentElement.clientWidth ||
document.body.clientWidth;
const height = window.innerHeight|| document.documentElement.clientHeight||
document.body.clientHeight;
console.log(width, height);
Here is a cross browser solution with pure JavaScript (Source):
var width = window.innerWidth
|| document.documentElement.clientWidth
|| document.body.clientWidth;
var height = window.innerHeight
|| document.documentElement.clientHeight
|| document.body.clientHeight;
A non-jQuery way to get the available screen dimension. window.screen.width/height has already been put up, but for responsive webdesign and completeness sake I think its worth to mention those attributes:
alert(window.screen.availWidth);
alert(window.screen.availHeight);
http://www.quirksmode.org/dom/w3c_cssom.html#t10 :
availWidth and availHeight - The available width and height on the
screen (excluding OS taskbars and such).
But when we talk about responsive screens and if we want to handle it using jQuery for some reason,
window.innerWidth, window.innerHeight
gives the correct measurement. Even it removes the scroll-bar's extra space and we don't need to worry about adjusting that space :)
Full 2020
I am surprised that question have about 10 years and it looks like so far nobody has given a full answer (with 10 values) yet. So I carefully analyse OP question (especially picture) and have some remarks
center of coordinate system (0,0) is in the viewport (browser window without bars and main borders) top left corner and axes are directed to right and down (what was marked on OP picture) so the values of pageX, pageY, screenX, screenY must be negative (or zero if page is small or not scrolled)
for screenHeight/Width OP wants to count screen height/width including system menu bar (eg. in MacOs) - this is why we NOT use .availWidth/Height (which not count it)
for windowWidth/Height OP don't want to count size of scroll bars so we use .clientWidth/Height
the screenY - in below solution we add to position of top left browser corner (window.screenY) the height of its menu/tabls/url bar). But it is difficult to calculate that value if download-bottom bar appears in browser and/or if developer console is open on page bottom - in that case this value will be increased of size of that bar/console height in below solution. Probably it is impossible to read value of bar/console height to make correction (without some trick like asking user to close that bar/console before measurements...)
pageWidth - in case when pageWidth is smaller than windowWidth we need to manually calculate size of <body> children elements to get this value (we do example calculation in contentWidth in below solution - but in general this can be difficult for that case)
for simplicity I assume that <body> margin=0 - if not then you should consider this values when calculate pageWidth/Height and pageX/Y
function sizes() {
const contentWidth = [...document.body.children].reduce(
(a, el) => Math.max(a, el.getBoundingClientRect().right), 0)
- document.body.getBoundingClientRect().x;
return {
windowWidth: document.documentElement.clientWidth,
windowHeight: document.documentElement.clientHeight,
pageWidth: Math.min(document.body.scrollWidth, contentWidth),
pageHeight: document.body.scrollHeight,
screenWidth: window.screen.width,
screenHeight: window.screen.height,
pageX: document.body.getBoundingClientRect().x,
pageY: document.body.getBoundingClientRect().y,
screenX: -window.screenX,
screenY: -window.screenY - (window.outerHeight-window.innerHeight),
}
}
// TEST
function show() {
console.log(sizes());
}
body { margin: 0 }
.box { width: 3000px; height: 4000px; background: red; }
<div class="box">
CAUTION: stackoverflow snippet gives wrong values for screenX-Y,
but if you copy this code to your page directly the values will be right<br>
<button onclick="show()" style="">CALC</button>
</div>
I test it on Chrome 83.0, Safari 13.1, Firefox 77.0 and Edge 83.0 on MacOs High Sierra
Graphical answer:
(............)
function wndsize(){
var w = 0;var h = 0;
//IE
if(!window.innerWidth){
if(!(document.documentElement.clientWidth == 0)){
//strict mode
w = document.documentElement.clientWidth;h = document.documentElement.clientHeight;
} else{
//quirks mode
w = document.body.clientWidth;h = document.body.clientHeight;
}
} else {
//w3c
w = window.innerWidth;h = window.innerHeight;
}
return {width:w,height:h};
}
function wndcent(){
var hWnd = (arguments[0] != null) ? arguments[0] : {width:0,height:0};
var _x = 0;var _y = 0;var offsetX = 0;var offsetY = 0;
//IE
if(!window.pageYOffset){
//strict mode
if(!(document.documentElement.scrollTop == 0)){offsetY = document.documentElement.scrollTop;offsetX = document.documentElement.scrollLeft;}
//quirks mode
else{offsetY = document.body.scrollTop;offsetX = document.body.scrollLeft;}}
//w3c
else{offsetX = window.pageXOffset;offsetY = window.pageYOffset;}_x = ((wndsize().width-hWnd.width)/2)+offsetX;_y = ((wndsize().height-hWnd.height)/2)+offsetY;
return{x:_x,y:_y};
}
var center = wndcent({width:350,height:350});
document.write(center.x+';<br>');
document.write(center.y+';<br>');
document.write('<DIV align="center" id="rich_ad" style="Z-INDEX: 10; left:'+center.x+'px;WIDTH: 350px; POSITION: absolute; TOP: '+center.y+'px; HEIGHT: 350px"><!--К сожалению, у Вас не установлен flash плеер.--></div>');
You can also get the WINDOW width and height, avoiding browser toolbars and other stuff. It is the real usable area in browser's window.
To do this, use:
window.innerWidth and window.innerHeight properties (see doc at w3schools).
In most cases it will be the best way, in example, to display a perfectly centred floating modal dialog. It allows you to calculate positions on window, no matter which resolution orientation or window size is using the browser.
To check height and width of your current loaded page of any website using "console" or after clicking "Inspect".
step 1: Click the right button of mouse and click on 'Inspect' and then click 'console'
step 2: Make sure that your browser screen should be not in 'maximize' mode. If the browser screen is in 'maximize' mode, you need to first click the maximize button (present either at right or left top corner) and un-maximize it.
step 3: Now, write the following after the greater than sign ('>') i.e.
> window.innerWidth
output : your present window width in px (say 749)
> window.innerHeight
output : your present window height in px (say 359)
Complete guide related to Screen sizes
JavaScript
For height:
document.body.clientHeight // Inner height of the HTML document body, including padding
// but not the horizontal scrollbar height, border, or margin
screen.height // Device screen height (i.e. all physically visible stuff)
screen.availHeight // Device screen height minus the operating system taskbar (if present)
window.innerHeight // The current document's viewport height, minus taskbars, etc.
window.outerHeight // Height the current window visibly takes up on screen
// (including taskbars, menus, etc.)
Note: When the window is maximized this will equal screen.availHeight
For width:
document.body.clientWidth // Full width of the HTML page as coded, minus the vertical scroll bar
screen.width // Device screen width (i.e. all physically visible stuff)
screen.availWidth // Device screen width, minus the operating system taskbar (if present)
window.innerWidth // The browser viewport width (including vertical scroll bar, includes padding but not border or margin)
window.outerWidth // The outer window width (including vertical scroll bar,
// toolbars, etc., includes padding and border but not margin)
Jquery
For height:
$(document).height() // Full height of the HTML page, including content you have to
// scroll to see
$(window).height() // The current document's viewport height, minus taskbars, etc.
$(window).innerHeight() // The current document's viewport height, minus taskbars, etc.
$(window).outerHeight() // The current document's viewport height, minus taskbars, etc.
For width:
$(document).width() // The browser viewport width, minus the vertical scroll bar
$(window).width() // The browser viewport width (minus the vertical scroll bar)
$(window).innerWidth() // The browser viewport width (minus the vertical scroll bar)
$(window).outerWidth() // The browser viewport width (minus the vertical scroll bar)
Reference: https://help.optimizely.com/Build_Campaigns_and_Experiments/Use_screen_measurements_to_design_for_responsive_breakpoints
With the introduction of globalThis in ES2020 you can use properties like.
For screen size:
globalThis.screen.availWidth
globalThis.screen.availHeight
For Window Size
globalThis.outerWidth
globalThis.outerHeight
For Offset:
globalThis.pageXOffset
globalThis.pageYOffset
...& so on.
alert("Screen Width: "+ globalThis.screen.availWidth +"\nScreen Height: "+ globalThis.screen.availHeight)
If you need a truly bulletproof solution for the document width and height (the pageWidth and pageHeight in the picture), you might want to consider using a plugin of mine, jQuery.documentSize.
It has just one purpose: to always return the correct document size, even in scenarios when jQuery and other methods fail. Despite its name, you don't necessarily have to use jQuery – it is written in vanilla Javascript and works without jQuery, too.
Usage:
var w = $.documentWidth(),
h = $.documentHeight();
for the global document. For other documents, e.g. in an embedded iframe you have access to, pass the document as a parameter:
var w = $.documentWidth( myIframe.contentDocument ),
h = $.documentHeight( myIframe.contentDocument );
Update: now for window dimensions, too
Ever since version 1.1.0, jQuery.documentSize also handles window dimensions.
That is necessary because
$( window ).height() is buggy in iOS, to the point of being useless
$( window ).width() and $( window ).height() are unreliable on mobile because they don't handle the effects of mobile zooming.
jQuery.documentSize provides $.windowWidth() and $.windowHeight(), which solve these issues. For more, please check out the documentation.
I wrote a small javascript bookmarklet you can use to display the size. You can easily add it to your browser and whenever you click it you will see the size in the right corner of your browser window.
Here you find information how to use a bookmarklet
https://en.wikipedia.org/wiki/Bookmarklet
Bookmarklet
javascript:(function(){!function(){var i,n,e;return n=function(){var n,e,t;return t="background-color:azure; padding:1rem; position:fixed; right: 0; z-index:9999; font-size: 1.2rem;",n=i('<div style="'+t+'"></div>'),e=function(){return'<p style="margin:0;">width: '+i(window).width()+" height: "+i(window).height()+"</p>"},n.html(e()),i("body").prepend(n),i(window).resize(function(){n.html(e())})},(i=window.jQuery)?(i=window.jQuery,n()):(e=document.createElement("script"),e.src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js",e.onload=n,document.body.appendChild(e))}()}).call(this);
Original Code
The original code is in coffee:
(->
addWindowSize = ()->
style = 'background-color:azure; padding:1rem; position:fixed; right: 0; z-index:9999; font-size: 1.2rem;'
$windowSize = $('<div style="' + style + '"></div>')
getWindowSize = ->
'<p style="margin:0;">width: ' + $(window).width() + ' height: ' + $(window).height() + '</p>'
$windowSize.html getWindowSize()
$('body').prepend $windowSize
$(window).resize ->
$windowSize.html getWindowSize()
return
if !($ = window.jQuery)
# typeof jQuery=='undefined' works too
script = document.createElement('script')
script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js'
script.onload = addWindowSize
document.body.appendChild script
else
$ = window.jQuery
addWindowSize()
)()
Basically the code is prepending a small div which updates when you resize your window.
In some cases related with responsive layout $(document).height() can return wrong data that displays view port height only.
For example when some div#wrapper has height:100%, that #wrapper can be stretched by some block inside it. But it's height still will be like viewport height. In such situation you might use
$('#wrapper').get(0).scrollHeight
That represents actual size of wrapper.
I developed a library for knowing the real viewport size for desktops and mobiles browsers, because viewport sizes are inconsistents across devices and cannot rely on all the answers of that post (according to all the research I made about this) : https://github.com/pyrsmk/W
Sometimes you need to see the width/height changes while resizing the window and inner content.
For that I've written a little script that adds a log box that dynamicly monitors all the resizing and almost immediatly updates.
It adds a valid HTML with fixed position and high z-index, but is small enough, so you can:
use it on an actual site
use it for testing mobile/responsive
views
Tested on: Chrome 40, IE11, but it is highly possible to work on other/older browsers too ... :)
function gebID(id){ return document.getElementById(id); }
function gebTN(tagName, parentEl){
if( typeof parentEl == "undefined" ) var parentEl = document;
return parentEl.getElementsByTagName(tagName);
}
function setStyleToTags(parentEl, tagName, styleString){
var tags = gebTN(tagName, parentEl);
for( var i = 0; i<tags.length; i++ ) tags[i].setAttribute('style', styleString);
}
function testSizes(){
gebID( 'screen.Width' ).innerHTML = screen.width;
gebID( 'screen.Height' ).innerHTML = screen.height;
gebID( 'window.Width' ).innerHTML = window.innerWidth;
gebID( 'window.Height' ).innerHTML = window.innerHeight;
gebID( 'documentElement.Width' ).innerHTML = document.documentElement.clientWidth;
gebID( 'documentElement.Height' ).innerHTML = document.documentElement.clientHeight;
gebID( 'body.Width' ).innerHTML = gebTN("body")[0].clientWidth;
gebID( 'body.Height' ).innerHTML = gebTN("body")[0].clientHeight;
}
var table = document.createElement('table');
table.innerHTML =
"<tr><th>SOURCE</th><th>WIDTH</th><th>x</th><th>HEIGHT</th></tr>"
+"<tr><td>screen</td><td id='screen.Width' /><td>x</td><td id='screen.Height' /></tr>"
+"<tr><td>window</td><td id='window.Width' /><td>x</td><td id='window.Height' /></tr>"
+"<tr><td>document<br>.documentElement</td><td id='documentElement.Width' /><td>x</td><td id='documentElement.Height' /></tr>"
+"<tr><td>document.body</td><td id='body.Width' /><td>x</td><td id='body.Height' /></tr>"
;
gebTN("body")[0].appendChild( table );
table.setAttribute(
'style',
"border: 2px solid black !important; position: fixed !important;"
+"left: 50% !important; top: 0px !important; padding:10px !important;"
+"width: 150px !important; font-size:18px; !important"
+"white-space: pre !important; font-family: monospace !important;"
+"z-index: 9999 !important;background: white !important;"
);
setStyleToTags(table, "td", "color: black !important; border: none !important; padding: 5px !important; text-align:center !important;");
setStyleToTags(table, "th", "color: black !important; border: none !important; padding: 5px !important; text-align:center !important;");
table.style.setProperty( 'margin-left', '-'+( table.clientWidth / 2 )+'px' );
setInterval( testSizes, 200 );
EDIT: Now styles are applied only to logger table element - not to all tables - also this is a jQuery-free solution :)
You can use the Screen object to get this.
The following is an example of what it would return:
Screen {
availWidth: 1920,
availHeight: 1040,
width: 1920,
height: 1080,
colorDepth: 24,
pixelDepth: 24,
top: 414,
left: 1920,
availTop: 414,
availLeft: 1920
}
To get your screenWidth variable, just use screen.width, same with screenHeight, you would just use screen.height.
To get your window width and height, it would be screen.availWidth or screen.availHeight respectively.
For the pageX and pageY variables, use window.screenX or Y. Note that this is from the VERY LEFT/TOP OF YOUR LEFT/TOP-est SCREEN. So if you have two screens of width 1920 then a window 500px from the left of the right screen would have an X value of 2420 (1920+500). screen.width/height, however, display the CURRENT screen's width or height.
To get the width and height of your page, use jQuery's $(window).height() or $(window).width().
Again using jQuery, use $("html").offset().top and $("html").offset().left for your pageX and pageY values.
here is my solution!
// innerWidth
const screen_viewport_inner = () => {
let w = window,
i = `inner`;
if (!(`innerWidth` in window)) {
i = `client`;
w = document.documentElement || document.body;
}
return {
width: w[`${i}Width`],
height: w[`${i}Height`]
}
};
// outerWidth
const screen_viewport_outer = () => {
let w = window,
o = `outer`;
if (!(`outerWidth` in window)) {
o = `client`;
w = document.documentElement || document.body;
}
return {
width: w[`${o}Width`],
height: w[`${o}Height`]
}
};
// style
const console_color = `
color: rgba(0,255,0,0.7);
font-size: 1.5rem;
border: 1px solid red;
`;
// testing
const test = () => {
let i_obj = screen_viewport_inner();
console.log(`%c screen_viewport_inner = \n`, console_color, JSON.stringify(i_obj, null, 4));
let o_obj = screen_viewport_outer();
console.log(`%c screen_viewport_outer = \n`, console_color, JSON.stringify(o_obj, null, 4));
};
// IIFE
(() => {
test();
})();
This how I managed to get the screen width in React JS Project:
If width is equal to 1680 then return 570 else return 200
var screenWidth = window.screen.availWidth;
<Label style={{ width: screenWidth == "1680" ? 570 : 200, color: "transparent" }}>a </Label>
Screen.availWidth

using a cookie with anything slider. possibly ajax

I am looking at writing a cookie that will be updated everytime the 'news scroller' moves to the next image/news item. when a user returns to the page it will automatically then start the scroller from the next news item.. helping to ensure our users get to see all the items.
i am using the 'anything scroller' by chris coyier et al, with php to pull in the news data.
each element has a unique id and are in numerical order so my cookie needs to retrieve the latest value and then +1 . the scroller allows for triggers to specific items.. but i can't seem to get the cookie to update on each, moreover it loads once the maximum id of those rendered in html...
is this even practical? assuming a maximum of 10 news items, would it slow the website down.
edit this is the could trying to get some output to the browser / console... but nothing.
<script>
// Set up Sliders
// **************
$(function(){
$('#slider').anythingSlider({
theme : 'minimalist-round',
easing : 'swing',
infiniteSlides : true,
delay : 8000, // How long between slideshow transitions in AutoPlay mode (in milliseconds)
resumeDelay : 8000, // Resume slideshow after user interaction, only if autoplayLocked is true (in milliseconds).
animationTime : 1, // How long the slideshow transition takes (in milliseconds)
autoPlayLocked : true, // If true, user changing slides will not stop the slideshow
})
$('#slider').bind('slide_complete', function(event, slider){
console.debug( 'You are on page ' + slider.currentPage );
// Do something else
})
});
</script>
solution: using local storage this works
<script type="text/javascript">
var ls = null, // local storage
sp = 1; // starting page
if ('localStorage' in window && window['localStorage'] !== null) {
ls = window.localStorage;
sp = ls.getItem('anythingSlider') || 1;
}
</script>
and
<script>
$('#slider').anythingSlider({
startPanel: sp,
// Callback when slide completes - no event variable!
onSlideComplete: function(slider) {
if (ls) {
ls.setItem('anythingSlider', (slider.currentPage+1));
$('.storage').val(slider.currentPage);
}
}
</script>

IMage animate larger when DT is active animate smaller when isn't

Looking to tweak this script: http://css-tricks.com/examples/InfoGrid/
I've added an image within each "dt", I'd like it to be a specific size when closed & then animate larger when that "dt" is selected (much like how the text is). Of course then return to it's original size when a different "dt" is selected.
Also would like more control over things that are in their "normal state" vs. "selected state". Any ideas?
<div id="page-wrap">
<div class="info-col">
<h2>Superman</h2>
<a class="image superman" href="http://jprart.deviantart.com/art/Batman-and-Superman-64545242">View Image</a>
<dl>
<dt><img src="http://s3.buysellads.com/1252508/65529-1308680363.jpg"> Other text</dt>
<dd>Stuff Here1</dd>
<dt><img src="http://s3.buysellads.com/1252508/65529-1308680363.jpg"> Other text 2</dt>
<dd>Stuff Here2</dd>
</div>
<div class="info-col">
<h2>Superman 2</h2>
<a class="image superman" href="http://jprart.deviantart.com/art/Batman-and-Superman-64545242">View Image 2</a>
<dl>
<dt><img src="http://s3.buysellads.com/1252508/65529-1308680363.jpg"> Other text 3</dt>
<dd>Stuff Here3</dd>
<dt><img src="http://s3.buysellads.com/1252508/65529-1308680363.jpg"> Other text 4</dt>
<dd>Stuff Here4</dd>
</div>
</div>
The JS:
$(function() {
// Set up variables
var $el, $parentWrap, $otherWrap, $imgBig,
$allTitles = $("dt").css({
padding: 5, // setting the padding here prevents a weird situation, where it would start animating at 0 padding instead of 5
"cursor": "pointer" // make it seem clickable
}),
$allCells = $("dd").css({
position: "relative",
top: -1,
left: 0,
display: "none" // info cells are just kicked off the page with CSS (for accessibility)
});
// clicking image of inactive column just opens column, doesn't go to link
$("#page-wrap").delegate("a.image","click", function(e) {
if ( !$(this).parent().hasClass("curCol") ) {
e.preventDefault();
$(this).next().find('dt:first').click();
}
});
// clicking on titles does stuff
$("#page-wrap").delegate("dt", "click", function() {
// cache this, as always, is good form
$el = $(this);
// if this is already the active cell, don't do anything
if (!$el.hasClass("current")) {
$parentWrap = $el.parent().parent();
$otherWraps = $(".info-col").not($parentWrap);
// remove current cell from selection of all cells
$allTitles = $("dt").not(this);
// close all info cells
$allCells.slideUp();
// return all titles (except current one) to normal size
$allTitles.animate({
fontSize: "14px",
paddingTop: 5,
paddingRight: 5,
paddingBottom: 5,
paddingLeft: 5
});
// animate current title to larger size
$el.animate({
"font-size": "18px",
paddingTop: 10,
paddingRight: 15,
paddingBottom: 0,
paddingLeft: 10
}).next().slideDown();
// make the current column the large size
$parentWrap.animate({
width: 351
}).addClass("curCol");
// make other columns the small size
$otherWraps.animate({
width: 140
}).removeClass("curCol");
// make sure the correct column is current
$allTitles.removeClass("current");
$el.addClass("current");
}
});
$("#starter").trigger("click");
});
The answer that worked for me is:
$el.find('img').animate({ //enlarge image(s)
width: 225
}).parent().next().slideDown();
$allTitles.find('img').animate({ //reduce image(s)
width: 125
}).parent().next().slideDown();

need ideas to only display some pixels and gray out the remaining pixels

I'm looking for ideas ...brainstorming a new project for a client ....I have an image ...300px x 300px ...I need to display the image one random pixel at a time until the entire image is revealed.
Basically, at certain intervals, a pixel is revealed and remains revealed while other pixels are still blank. At each interval, another pixel at random is revealed and remains revealed to join the other revealed pixels. Eventually, all the pixels will be revealed.
Any suggestions on how to make that happen?
I could make numerous copies of the image and manually reveal one random pixel, but surely it can be done programatically :)
Oh, and it cannot be any form of flash.
EDIT: I realize I mis-interpreted what you needed to do, but I thought this was cool anyway and could be applied to your problem...
See working demo of the following →
I threw this together in jQuery. I made each pixel actually a 3x3 box instead because otherwise it would take way too long to process. Seems to work pretty well for something on this in client side, though I haven't tested IE yet.
<div id="w">
<img id="i" src="yourImage.jpg" width="300" height="300" />
</div>
$('#w').css({
width: $('#i').width(),
height: $('#i').height()
});
var htmlFrag = '',
id, ids = [],
removePix = function () {
if (ids.length) {
var rand = Math.floor(Math.random()*ids.length);
$('#'+ids[rand]).fadeOut(function(){
$(this).remove();
});
ids = ids.slice(0, rand).concat(ids.slice(rand+1));
setTimeout(removePix, 1);
}
};
for (var i = 0, len = $('#i').height(); i < len; i += 3) {
for (var j = 0, len = $('#i').width(); j < len; j += 3) {
id = 'pix'+j+'-'+i;
ids.push(id);
htmlFrag += '<div id="'+id+'" class="pix" ' +
'style="width:3px;height:3px;position:absolute;' +
'left:'+j+'px;top:'+i+'px;"></div>';
}
}
$('#w').html($('#w').html() + htmlFrag);
removePix();
See working example →
Load the image file into an image resource (imagecreatefrompng, imagecreatefromgif, etc).
Decide what pixels to show, using rand() or however you want to choose them.
Loop over every pixel in the image, and if it's not one you chose to show, color it gray with imagesetpixel.

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