html
<p> Tags:<input name="tags" id="tags" /></p>
jquery
$('#tags').tagit( {tagLimit:3});
I want to control the size of input field,how can i do that ?
If you look at the dynamic HTML that is generated by the tag-it plugin, ul.tagit is the class assigned to the UL that is generated. So to set the width to 200px in your CSS set:
ul.tagit {
width: 200px;
}
(function( $ ) {
$.fn.extend({
tagit: function (params) {
return this.each(function () {
console.log(params);
console.log(params['tagLimit'] );
$(this).attr('maxLength', params.tagLimit );
$(this).parent().css('maxwidth', params.tagLimit );
$(this).parent().css('width', params.tagLimit );
});
}
} )
}( jQuery ));
But you can do it directly by jQuery too, like below:
var _width = 3;
$("p input").each( function() {
$(this).css('width', _width);
$(this).css('maxWidth', _width);
})
Since I had tag-it being used in multiple places, I decided to do it in Javascript. The size needs to be big enough that it doesn't do to a double line when you add tags to it. The basic code is:
// adjust tag it size
$("ul.tagit").attr("style", "width:450px;")
Offcourse, you can decide to choose something other than 450px.
However, I also wanted to line it up with other jquery-ui buttons, which I styled with ul, instead of li, so they would have a fairly snug fit with the search box. The bottom margin needs to be adjusted to have it line up more precisely with the buttons. Here is the code for that.
// adjust tag it size and line it up with buttons
$("ul.tagit").attr("style", "width:450px; display:inline-block; margin-bottom:-10px")
Q1. Suppose I want to alter the look of each "item" that a user marks for deletion before the main "delete" button is pressed. (This immediate visual feedback should eliminate the need for the proverbial "are you sure?" dialog box.) The user will check checkboxes to indicate which items should be deleted. If a checkbox is unchecked, that item should revert back to its normal look.
What's the best way to apply or remove the CSS styling?
Q2. Suppose I want to allow each user to personalize how my site is presented. E.g., select from a fixed set of font sizes, allow user-definable foreground and background colors, etc.
What's the best way to apply the CSS styling the user selects/inputs?
Angular provides a number of built-in directives for manipulating CSS styling conditionally/dynamically:
ng-class - use when the set of CSS styles is static/known ahead of time
ng-style - use when you can't define a CSS class because the style values may change dynamically. Think programmable control of the style values.
ng-show and ng-hide - use if you only need to show or hide something (modifies CSS)
ng-if - new in version 1.1.5, use instead of the more verbose ng-switch if you only need to check for a single condition (modifies DOM)
ng-switch - use instead of using several mutually exclusive ng-shows (modifies DOM)
ng-disabled and ng-readonly - use to restrict form element behavior
ng-animate - new in version 1.1.4, use to add CSS3 transitions/animations
The normal "Angular way" involves tying a model/scope property to a UI element that will accept user input/manipulation (i.e., use ng-model), and then associating that model property to one of the built-in directives mentioned above.
When the user changes the UI, Angular will automatically update the associated elements on the page.
Q1 sounds like a good case for ng-class -- the CSS styling can be captured in a class.
ng-class accepts an "expression" that must evaluate to one of the following:
a string of space-delimited class names
an array of class names
a map/object of class names to boolean values
Assuming your items are displayed using ng-repeat over some array model, and that when the checkbox for an item is checked you want to apply the pending-delete class:
<div ng-repeat="item in items" ng-class="{'pending-delete': item.checked}">
... HTML to display the item ...
<input type="checkbox" ng-model="item.checked">
</div>
Above, we used ng-class expression type #3 - a map/object of class names to boolean values.
Q2 sounds like a good case for ng-style -- the CSS styling is dynamic, so we can't define a class for this.
ng-style accepts an "expression" that must evaluate to:
an map/object of CSS style names to CSS values
For a contrived example, suppose the user can type in a color name into a texbox for the background color (a jQuery color picker would be much nicer):
<div class="main-body" ng-style="{color: myColor}">
...
<input type="text" ng-model="myColor" placeholder="enter a color name">
Fiddle for both of the above.
The fiddle also contains an example of ng-show and ng-hide. If a checkbox is checked, in addition to the background-color turning pink, some text is shown. If 'red' is entered in the textbox, a div becomes hidden.
I have found problems when applying classes inside table elements when I had one class already applied to the whole table (for example, a color applied to the odd rows <myClass tbody tr:nth-child(even) td>). It seems that when you inspect the element with Developer Tools, the element.style has no style assigned. So instead of using ng-class, I have tried using ng-style, and in this case, the new CSS attribute does appear inside element.style. This code works great for me:
<tr ng-repeat="element in collection">
[...amazing code...]
<td ng-style="myvar === 0 && {'background-color': 'red'} ||
myvar === 1 && {'background-color': 'green'} ||
myvar === 2 && {'background-color': 'yellow'}">{{ myvar }}</td>
[...more amazing code...]
</tr>
Myvar is what I am evaluating, and in each case I apply a style to each <td> depending on myvar value, that overwrites the current style applied by the CSS class for the whole table.
UPDATE
If you want to apply a class to the table for example, when visiting a page or in other cases, you can use this structure:
<li ng-class="{ active: isActive('/route_a') || isActive('/route_b')}">
Basically, what we need to activate a ng-class is the class to apply and a true or false statement. True applies the class and false doesn't. So here we have two checks of the route of the page and an OR between them, so if we are in /route_a OR we are in route_b, the active class will be applied.
This works just having a logic function on the right that returns true or false.
So in the first example, ng-style is conditioned by three statements. If all of them are false, no style is applied, but following our logic, at least one is going to be applied, so, the logic expression will check which variable comparison is true and because a non empty array is always true, that will left an array as return and with only one true, considering we are using OR for the whole response, the style remaining will be applied.
By the way, I forgot to give you the function isActive():
$rootScope.isActive = function(viewLocation) {
return viewLocation === $location.path();
};
NEW UPDATE
Here you have something I find really useful. When you need to apply a class depending on the value of a variable, for example, an icon depending on the contents of the div, you can use the following code (very useful in ng-repeat):
<i class="fa" ng-class="{ 'fa-github' : type === 0,
'fa-linkedin' : type === 1,
'fa-skype' : type === 2,
'fa-google' : type === 3 }"></i>
Icons from Font Awesome
This works well when ng-class can't be used (for example when styling SVG):
ng-attr-class="{{someBoolean && 'class-when-true' || 'class-when-false' }}"
(I think you need to be on latest unstable Angular to use ng-attr-, I'm currently on 1.1.4)
I have published an article on working with AngularJS+SVG. It talks about this issue and numerous others. http://www.codeproject.com/Articles/709340/Implementing-a-Flowchart-with-SVG-and-AngularJS
span class="circle circle-{{selectcss(document.Extension)}}">
and code
$scope.selectcss = function (data) {
if (data == '.pdf')
return 'circle circle-pdf';
else
return 'circle circle-small';
};
css
.circle-pdf {
width: 24px;
height: 24px;
font-size: 16px;
font-weight: 700;
padding-top: 3px;
-webkit-border-radius: 12px;
-moz-border-radius: 12px;
border-radius: 12px;
background-image: url(images/pdf_icon32.png);
}
This solution did the trick for me
<a ng-style="{true: {paddingLeft: '25px'}, false: {}}[deleteTriggered]">...</a>
You can use ternary expression. There are two ways to do this:
<div ng-style="myVariable > 100 ? {'color': 'red'} : {'color': 'blue'}"></div>
or...
<div ng-style="{'color': (myVariable > 100) ? 'red' : 'blue' }"></div>
Another option when you need a simple css style of one or two properties:
View:
<tr ng-repeat="element in collection">
[...amazing code...]
<td ng-style="{'background-color': getTrColor(element.myvar)}">
{{ element.myvar }}
</td>
[...more amazing code...]
</tr>
Controller:
$scope.getTrColor = function (colorIndex) {
switch(colorIndex){
case 0: return 'red';
case 1: return 'green';
default: return 'yellow';
}
};
See the following example
<!DOCTYPE html>
<html ng-app>
<head>
<title>Demo Changing CSS Classes Conditionally with Angular</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script>
<script src="res/js/controllers.js"></script>
<style>
.checkboxList {
border:1px solid #000;
background-color:#fff;
color:#000;
width:300px;
height: 100px;
overflow-y: scroll;
}
.uncheckedClass {
background-color:#eeeeee;
color:black;
}
.checkedClass {
background-color:#3ab44a;
color:white;
}
</style>
</head>
<body ng-controller="TeamListCtrl">
<b>Teams</b>
<div id="teamCheckboxList" class="checkboxList">
<div class="uncheckedClass" ng-repeat="team in teams" ng-class="{'checkedClass': team.isChecked, 'uncheckedClass': !team.isChecked}">
<label>
<input type="checkbox" ng-model="team.isChecked" />
<span>{{team.name}}</span>
</label>
</div>
</div>
</body>
</html>
As of AngularJS v1.2.0rc, ng-class and even ng-attr-class fail with SVG elements (They did work earlier, even with normal binding inside the class attribute)
Specifically, none of these work now:
ng-class="current==this_element?'active':' ' "
ng-attr-class="{{current==this_element?'active':' '}}"
class="class1 class2 .... {{current==this_element?'active':''}}"
As a workaround, I've to use
ng-attr-otherAttr="{{current==this_element?'active':''}}"
and then style using
[otherAttr='active'] {
... styles ...
}
One more (in the future) way to conditionally apply style is by conditionally creating scoped style
<style scoped type="text/css" ng-if="...">
</style>
But nowadays only FireFox supports scoped styles.
There is one more option that I recently discovered that some people may find useful because it allows you to change a CSS rule within a style element - thus avoiding the need for repeated use of an angular directive such as ng-style, ng-class, ng-show, ng-hide, ng-animate, and others.
This option makes use of a service with service variables which are set by a controller and watched by an attribute-directive I call "custom-style". This strategy could be used in many different ways, and I attempted to provide some general guidance with this fiddle.
var app = angular.module('myApp', ['ui.bootstrap']);
app.service('MainService', function(){
var vm = this;
});
app.controller('MainCtrl', function(MainService){
var vm = this;
vm.ms = MainService;
});
app.directive('customStyle', function(MainService){
return {
restrict : 'A',
link : function(scope, element, attr){
var style = angular.element('<style></style>');
element.append(style);
scope.$watch(function(){ return MainService.theme; },
function(){
var css = '';
angular.forEach(MainService.theme, function(selector, key){
angular.forEach(MainService.theme[key], function(val, k){
css += key + ' { '+k+' : '+val+'} ';
});
});
style.html(css);
}, true);
}
};
});
well i would suggest you to check condition in your controller with a function returning true or false .
<div class="week-wrap" ng-class="{today: getTodayForHighLight(todayDate, day.date)}">{{day.date}}</div>
and in your controller check the condition
$scope.getTodayForHighLight = function(today, date){
return (today == date);
}
One thing to watch is - if the CSS style has dashes - you must remove them. So if you want to set background-color, the correct way is:
ng-style="{backgroundColor:myColor}"
Here's how i conditionally applied gray text style on a disabled button
import { Component } from '#angular/core';
#Component({
selector: 'my-app',
styleUrls: [ './app.component.css' ],
template: `
<button
(click)='buttonClick1()'
[disabled] = "btnDisabled"
[ngStyle]="{'color': (btnDisabled)? 'gray': 'black'}">
{{btnText}}
</button>`
})
export class AppComponent {
name = 'Angular';
btnText = 'Click me';
btnDisabled = false;
buttonClick1() {
this.btnDisabled = true;
this.btnText = 'you clicked me';
setTimeout(() => {
this.btnText = 'click me again';
this.btnDisabled = false
}, 5000);
}
}
Here's a working example:
https://stackblitz.com/edit/example-conditional-disable-button?file=src%2Fapp%2Fapp.component.html
I am using Knockout.js with jQuery tmpl plugin. The template I have defined has a few select lists. I need to expand the width of the select items (on IE 8) when a select list is clicked (to accomodate the longest element in the list). I was thinking of toggling the css class when a user clicks on the select list to achieve this but am not sure how to go about it. Here is what I have so far:
//CSS classes
<style>
.bigclass
{
width: 200px;
}
.normalclass
{
width: auto;
}
</style>
// Call makeBig javascript method on mouseover.
<script id='criteriaRowTemplate' type='text/html'>
<tr>
<td style="width: 23%"><select style="width: 100%" data-bind='event: { mouseover: makeBig, mouseout: makeNormal}, options: criteriaData, optionsText: "Text", optionsCaption: "--Select--", value: SearchCriterion' /></td>
</tr>
</script>
var CriteriaLine = function() {
this.SearchCriterion = ko.observable();
//Control comes to this method. Not sure though if the element captured is correct.
makeBig = function(element) {
$(element).addClass("bigclass")
};
makeNormal = function(element) {
$(element).addClass("normalclass")
};
};
So my questions are:
How do we pass the select list to the makeBig javascript function? I believe I need to change the following syntax in my code:
data-bind='event: { mouseover: makeBig, mouseout: makeNormal
How do we add the class to the passed select list. I have added the code but it's not working, maybe because element doesn't have a value.
Alternatively, is there any other approach to ensure that the user sees the full text of the dropdown in IE 8?
Here is a custom binding to add a CSS class to the element on hovering:
http://jsfiddle.net/BL9zt/
Note that it subscribes to the IE specific mouseenter and mouseleave event, so you also have to reference jQuery which simulates those events in the other browsers.
Another, knockout-independent approach is described here:
http://www.getharvest.com/blog/wp-content/uploads/2009/12/select_box_demo.html
jQuery UI themes are nice they apply to the entire document, however I have some cases where the style of the dialog such as the title bar colour must be changed.
In my jQuery UI css, the titlebar is coded:
.ui-dialog .ui-dialog-titlebar { padding: .4em 1em; position: relative; }
Here's my javascript:
var $AlertDialog = $('<div"></div>')
.dialog({
autoOpen: false,
title: 'Alert Message',
buttons: {Ok: function() {$( this ).dialog( "close" );}}
});
function Alerter(cTxt)
{
$AlertDialog.html(cTxt);
$AlertDialog.css('ui-dialog-titlebar','color: red');
$AlertDialog.dialog('open');
};
Alerter() is then called as a substitute for alert().
Accessing and altering the color property of 'ui-dialog-titlebar' has no effect.
Lots of reading preceded this question. Seems others have had similar issues, but not specific to jQuery UI.
How can this be done?
Update:
Thanks to a good hint, I did this:
$AlertDialog.dialog('open');
$("#.ui-dialog .ui-dialog-title").css('color','red');
$("#.ui-dialog .ui-dialog-title").css('background-color','orange');
Works. But acceptable practice?
My suggestion would be to not use the .ui-dialog selector as there may be more than one dialog on a page. You can traverse to the title bar.
...
$AlertDialog.html(cTxt);
// might as well use the theme since its part of jquery ui
$AlertDialog.prev().addClass("ui-state-error");
$AlertDialog.dialog('open');
Firstly,
According to documentation .css() takes property as param.
It seems you are trying changing ui-dialog-titlebar. Instead try this:
...
function Alerter(cTxt)
{
$AlertDialog.html(cTxt);
$AlertDialog.dialog('open');
$(".ui-dialog .ui-dialog-title").css('color','red');
$(".ui-dialog .ui-dialog-title").css('background-color','orange');
//Assuming you want to change header color only
//see the theming structure at http://jqueryui.com/demos/dialog/#theming
};
I would like to style my selected button.
I would like to display a light-blue border around the image of my selected button to show which page the user is on. (or just use the same hover image as the selected button image when the button is pushed.)
I didn't have success with the css link selectors :visited, :focus, or :selected.
Does this require a javascript solution?
thanks for any pointers!
i usually just a extra class name called selected
<div class="button selected">Button 1</div>
<div class="button">Button 2</div>
.selected {
border: 1px solid #0000ff;
}
It depends on how you display your page (using ajax or refresh on every click). If you are using javascript to load the page content than you just put an extra classname using javascript when the button is clicked.
you should use :active pseudo class in css to achieve what you want.
jQuery Solution with your CSS
You would probably want to check first if it is selected, that way this solution works with things like Twitter Bootstrap, where you can make any element act like a button:
$(function () {
$('div.button').click(function(){
if ($(this).hasClass('selected') {
$(this).removeClass('selected');
//Insert logic if you want a type of optional click/off click code
}
else
{
$(this).addClass('selected');
//Insert event handling logic
}
})
});
You will, in fact, need to use javascript. I did this in a project a while back, by iterating through the links in the navbar, and setting a class called "selected" on the one the user is currently visiting.
If you use jQuery, you can accomplish it like this:
$(function() {
$('#navbar li').each(function() {
if ($(this).children('a').attr('href') == window.location.pathname)
{
$(this).addClass('active');
}
});
})
The CSS Pseudo-selector :active won't still be active after a pagereload.