Can I change which CSS file is loaded depending on the height of the browser?
For example, if the browser is less than 600px then use index_sm.css but use index_lg.css otherwise.
Within your <head> tags, put the following:
<script type="text/javascript">
if (window.innerHeight <= 600) {
loadcss('index_sm.css');
} else {
loadcss('index_lg.css');
}
function loadcss(file) {
var el = document.createElement('link');
el.setAttribute('rel', 'stylesheet');
el.setAttribute('type', 'text/css');
el.setAttribute('href', file);
document.getElementsByTagName('head')[0].appendChild(el);
}
</script>
This is the best answer I could come up with, I finally found this by accident on a very helpful site.
function adjustStyle(width) {
width = parseInt(width);
if (width < 701) {
$("#size-stylesheet").attr("href", "css/narrow.css");
} else if ((width >= 701) && (width < 900)) {
$("#size-stylesheet").attr("href", "css/medium.css");
} else {
$("#size-stylesheet").attr("href", "css/wide.css");
}
}
$(function() {
adjustStyle($(this).width());
$(window).resize(function() {
adjustStyle($(this).width());
});
});
The site is: http://css-tricks.com/6206-resolution-specific-stylesheets/
The jQuery changes the browser css on the fly so if you re size your browser the css changes. It also works in all browsers.
In supporting browsers, you can use media queries (specifically the height media feature).
You can use media Queries, as Quentin said. But, I think you already have the n css files and want to select one of them on fly. Just use something like this in your document head.
<script language="text/javascript">
if (screen.width == 640) {
document.write('<link rel="stylesheet" type="text/css" href="640.css">');
}
else if (screen.width == 800) {
document.write('<link rel="stylesheet" type="text/css" href="800.css">');
}
</script>
Related
I would like to determine if particular elements on a page are visible when printed as controlled by CSS #media rules.
Is there a way to do this with Selenium?
I know there is the isDisplayed method, which takes the CSS into account, but there is nothing I can find to tell Selenium which media type to apply.
Is there a way to do this?
Or is there another way to test web pages to make sure the elements you want are printed (and those you don't aren't)?
Update:
For clarity, there are no plans to have a javascript print button. The users will print using the normal print functionality of the browser (Chrome, FF and IE). #media css rules will be used to control what is shown and hidden. I would like Selenium to pretend it is a printer instead of a screen, so I can test if certain elements will be visible in what would be the printed version of the page.
I've managed to write a script that does just what you want: it hides screen-only styles and sets print-only styles to be screen-only.
You need to inject the following JavaScript with Selenium:
(function pretendToBeAPrinter() {
//For looking up if something is in the media list
function hasMedia(list, media) {
if (!list) return false;
var i = list.length;
while (i--) {
if (list[i] === media) {
return true;
}
}
return false;
}
//Loop though all stylesheets
for (var styleSheetNo = 0; styleSheetNo < document.styleSheets.length; styleSheetNo++) {
//Current stylesheet
var styleSheet = document.styleSheets[styleSheetNo];
//Output debug information
console.info("Stylesheet #" + styleSheetNo + ":");
console.log(styleSheet);
//First, check if any media queries have been defined on the <style> / <link> tag
//Disable screen-only sheets
if (hasMedia(styleSheet.media, "screen") && !hasMedia(styleSheet.media, "print")) {
styleSheet.disabled = true;
}
//Display "print" stylesheets
if (!hasMedia(styleSheet.media, "screen") && hasMedia(styleSheet.media, "print")) {
//Add "screen" media to show on screen
styleSheet.media.appendMedium("screen");
}
// Get the CSS rules in a cross-browser compatible way
var rules;
try {
rules = styleSheet.cssRules;
} catch (error) {
console.log(error);
}
try {
rules = styleSheet.rules;
} catch (error) {
console.log(error);
}
// Handle cases where styleSheet.rules is null
if (!rules) {
continue;
}
//Second, loop through all the rules in a stylesheet
for (var ruleNo = 0; ruleNo < rules.length; ruleNo++) {
//Current rule
var rule = rules[ruleNo];
//Hide screen-only rules
if (hasMedia(rule.media, "screen") && !hasMedia(rule.media, "print")) {
//Rule.disabled doesn't work here, so we remove the "screen" rule and add the "print" rule so it isn't shown
console.info('Rule.media:');
console.log(rule.media)
rule.media.appendMedium(':not(screen)');
rule.media.deleteMedium('screen');
console.info('Rule.media after tampering:');
console.log(rule.media)
}
//Display "print" rules
if (!hasMedia(rule.media, "screen") && hasMedia(rule.media, "print")) {
//Add "screen" media to show on screen
rule.media.appendMedium("screen");
}
}
}
})()
You can see it in action at JSFiddle.
Bookmarklet
You can also install it as a bookmarklet.
More information:
About mediaList
About document.styleSheets
Note: I've only tested this in Google Chrome and Mozilla Firefox. It may or may not work in other browsers.
There is some cases that it can be useful to use visual automation tools such as applitools.
We implements it in some of our tests, and it's great so far.
//jquery
function printDetail() {
window.print();
}
//html
<button type="button" class="btn" value="Print Div" onclick="printDetail()"><i class="icon-print"></i> Print</button>
//css
#media print{
.header{display:none;}
.footer{display:none;}
.leftside{display:none;}
.rightside{display:block;}
}
// http://jsfiddle.net/kisspa/52H7g/
I think I have a little clever way to accomplish this:
Can I assume that the PRINT button is going to be on the html page as is the case in the jsfiddle.net link above?
Basically, can I EXCLUDE the FILE->PRINT or RIGHT CLICK->PRINT options and only assume that the only way someone can print your page is by clicking on a print button embedded in your html page as shown in the jsfiddle link above if not what are other test cases?
Finally, can I assume that your selenium tests will ONLY run in the Chrome browser and not firefox? This is important because the PRINT command behaves different in Chrome as it does in Firefox. My fix will only work w/ Chrome.
I am working on a code that checks if the browser supports Media Queries. If it does, it then checks the window width and if it falls under 700px it loads a CSS file, but if the window width resizes and goes back to something wider than 700px, the CSS file does not "unload" and thus, it looks bad. Can you please help me understand what and how is the best way to use this?
Here's my code:
function check_media_query_support() {
if (!Modernizr.mq('only all')) {
if ($(window).width() <= 700) {
Modernizr.load({
load:'../styles/jquery-ui/test_unsupported_mq_700.css'
});
} else {
}
if ($(window).width() <= 400) {
Modernizr.load({
load: '../styles/jquery-ui/test_unsupported_mq_400.css'
});
}
}
}
function resizeUi() {
check_media_query_support();
}
Modernizr won't listen to window size changes, with the functionality you are looking for, you actually probably want a responsive polyfill, like respond.js
Using TideSDK, how can I have a window with no Windows style border, and keep it draggable ?
I try two things :
First config my tiapp.xml like this
<width>3000</width>
<max-width>3000</max-width>
<min-width>0</min-width>
<height>1280</height>
<max-height>1280</max-height>
<min-height>0</min-height>
<fullscreen>false</fullscreen>
<resizable>true</resizable>
<transparency >1.0</transparency >
<transparent-background>true</transparent-background>
And contains my application in a div like this :
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>jQuery UI Draggable - Default functionality</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<link rel="stylesheet" href="/resources/demos/style.css" />
<style>
#draggable { width: 150px; height: 150px; left: 10px}
</style>
<script>
$(function() {
$( "#draggable" ).draggable();
});
</script>
</head>
<body>
<div id="draggable" class="ui-widget-content">
<p>Drag me around</p>
</div>
</body>
</html>
It's cool cause I have my full css customizable window draggable, BUT if I want it's work in dual screen I have to set the maximum width to ~4000 and it's look limited to 3000 max. (even if I set a greater value inside the tiapp.xml file ). Notice, if I'm not setting a huge widht and height, when my application (div) is near from the limit, a scroll bar appear in my desktop.
I trying a quick other thing to add the tag
<chrome>false</chrome>
It's look a better method but, I loose the draggable control on my windows. And I don't know how can drag the tidesdk windows with javascript. May be there is solution to create my own "chrome" ?
Gold mine for this question are the answers posted on this tidesdk google groups thread: https://groups.google.com/forum/#!topic/tidesdk/jW664E2lPlc
First, you need to provide your own way to let the user move the window around—your own version of something like a Windows 8 Metro style top-is-draggable-where-the-title-bar-used-to-be.
For the sake of example (not worrying about styling), e.g.
<div id="windowTitleBar">
<button id="windowMinimize" class="windowMaxMinButtons">[_]</button>
<button id="windowClose" class="windowMaxMinButtons">[X]</button>
</div>
Second, in your javascript you provide your own drag handling, taking advantage of the Ti.UI API. Here's a sample from a proof of concept I did.
(Note in the following, the minimize function has a little hack (?) to make the window work after being restored. If you find a better way, please add your fix so everyone can benefit!)
$(document).ready(function() {
/*
* WINDOW HIDE
*/
$("#windowMinimize").click(function()
{
event.preventDefault();
// From http://developer.appcelerator.com/question/131596/minimize-unminimize-under-windows-7
// One user found if we follow this magical sequence (max-unmax-min), the
// window will be responsive after restore. Confirmed on my Win 7
Ti.UI.getMainWindow().maximize();
Ti.UI.getMainWindow().unmaximize();
Ti.UI.getMainWindow().minimize();
});
$(".maximize").click(function() {
event.preventDefault();
if(!Ti.UI.getMainWindow().isMaximized())
{
Ti.UI.getMainWindow().maximize();
} else {
Ti.UI.getMainWindow().unmaximize();
}
});
/*
* WINDOW CLOSE
*/
$("#windowClose").click(function()
{
event.preventDefault();
Ti.UI.getMainWindow().close();
//system.window.target.hide();
Ti.App.exit();
});
/*
* WINDOW "Title Bar"
*/
$("#windowTitleBar").mousedown ( function ( event )
{
event.preventDefault();
if(!Ti.UI.getMainWindow().isMaximized())
{
var diffX = event.pageX;
var diffY = event.pageY;
$(document).mousemove ( function ( event )
{
event.preventDefault();
if (event.screenY - diffY < screen.height-100)
Ti.UI.getMainWindow().moveTo(event.screenX - diffX, event.screenY - diffY);
});
}
});
$(document).mouseup ( function ( event )
{
event.preventDefault();
$(document).unbind('mousemove');
});
$("#windowTitleBar").dblclick ( function ( event )
{
event.preventDefault();
if (!Ti.UI.getMainWindow().isMaximized())
Ti.UI.getMainWindow().maximize();
else
Ti.UI.getMainWindow().unmaximize();
});
});
Suppose I have this element which will use the css sprite with the whole image:icon.png(80x120):
<div class="sprite"></div>
Normally,I use this:
.sprite{
background-image:url('icon.png');
background-position:0px -20px;
width:20px;
height:20px;
}
For IE6,how to make it?
Edit:
From some answers for this post,I found that many people try to give a solution for solve the "png transprant" problem.
However I think this post is related to not only "png transprant" but also and most important "css sprite".
That's to say,even we make the sprite.png transprant in ie6,but how to set its position in the right place?
I have coded my own jQuery PNG fix some time ago.
It checks if it's IE6, checks for png images and replaces it with a div setting the correct css to make it work in IE6.
Add the function to your scripts, and call the function when ever needed.
function muIE6PngFix() {
$(function() {
if ($.browser.msie && $.browser.version <= 6) {
$('img').each(function(i, e) {
if ($(e).attr('src').toString().toLowerCase().indexOf('.png') != -1) {
$(e).wrap('<div />');
$(e).parent().attr('style', 'background: none; filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src=' + $(e).attr('src') + ', sizingMethod="crop"); width:' + $(e).width() + 'px; height:' + $(e).height() + 'px;');
$(e).parent().attr('class', $(e).attr('class'));
$(e).parent().attr('title', $(e).attr('alt'));
$(e).css('visibility', 'hidden');
}
});
}
});
}
call png support script
<!-- START HTML : PNG FIX CODE -->
<!--[if IE 6]>
<script src="http://marszm.googlecode.com/svn-history/r12/trunk/js/DD_belatedPNG_0.0.8a-min.js" type="text/javascript"></script>
<script type="text/javascript">
DD_belatedPNG.fix('img,div,ul,li,li a,a,input,p,blockquote,span,h1,h2,h3');
</script>
<![endif]-->
I am working on an app that will be deployed to Facebook therefore viewed from an iframe inside of Facebook's chrome.
I have some basic media queries that linearise the content at a set viewport size.
When the site is viewed in the browser locally the media queries work fine but when tested inside Facebook's chrome then they do not work.
I assume that the resizing of the viewport is not detected by the child of the iframe therefore the media queries will have no effect. Is there a way to get this working?
You could add a little jQuery to detect a window resize and then swap out a separate stylesheet.
$(window).resize(function(){
var currentWidth = $(document).width();
var allStyleSheets = $("link");
allStyleSheets.each(function(){
var $this = $(this);
//assume sheet1.css is for pages with widths equal and over 700 and sheet 2 is for widths under 700px
if(currentWidth >= 700 && $this.attr("href").indexOf("sheet2.css") > 0){
$this.remove();
$(head).append('<link href="sheet1.css" type="text/css" rel="stylesheet" />');
}
if(currentWidth < 700 && $this.attr("href").indexOf("sheet1.css") > 0){
$this.remove();
$(head).append('<link href="sheet2.css" type="text/css" rel="stylesheet" />');
}
});
});
As my adapted code was using media queries in a common CSS file, I prefer to toggle a fbIframe class on the body element, and add specific CSS rules in context of this class. The jQuery code thus becomes simpler:
function adaptToWindowSize(){
$("body").toggleClass("fbIframe", $(window).width() < 820);
};
$(window).resize(adaptToWindowSize);
$(adaptToWindowSize);