jquery tutorials for designers

8/7/2019 jQuery Tutorials for Designers

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jQuery Tutorials for Designers

How jQuery works?

First you need to download a copy of jQuery and insert it in your htmlpage (preferably within the <head> tag). Then you need to write

functions to tell jQuery what to do. The diagram below explains the

detail how jQuery work:

How to get the element?

Writing jQuery function is relatively easy (thanks to the wonderful

documentation). The key point you have to learn is how to get the

exact element that you want to apply the effects.

• $("#header") = get the element with id="header"

• $("h3") = get all <h3> element

• $("div#content .photo") = get all element with

class="photo" nested in the <div id="content">• $("ul li") = get all <li> element nested in all

<ul>• $("ul li:first") = get only the first <li>

element of the <ul>

http://webdesignerwall.com/tutorials/jquery-tutorials-for-designers

http://jquery.com/

http://docs.jquery.com/Main_Page

http://www.webdesignerwall.com/wp-content/uploads/2008/02/jquery-how-it-works.gif

http://jquery.com/

http://docs.jquery.com/Main_Page

http://webdesignerwall.com/tutorials/jquery-tutorials-for-designers



1. Simple slide panel

Let's start by doing a simple slide panel. You've probably seen a lot of

this, where you click on a link and a panel slide up/down. (view

demo)

When an elment with class="btn-slide" is clicked, it will slideToggle

(up/down) the <div id="panel"> element and then toggle a CSS

class="active" to the <a class="btn-slide"> element. The .active class

will toggle the background position of the arrow image (by CSS).

$(document).ready(function(){$(".btn-slide").click(function(){$("#panel").slideToggle("slow");$(this).toggleClass("active");

});

});

2. Simple disappearing effect

This sample will show you how to make something disappear when

an image button is clicked. (view demo)

http://www.webdesignerwall.com/demo/jquery/simple-slide-panel.html

http://www.webdesignerwall.com/demo/jquery/simple-disappear.html






When the <img class="delete"> is clicked, it will find its parent

element <div class="pane"> and animate its opacity=hide with slow

speed.

$(document).ready(function(){

$(".pane .delete").click(function(){$

(this).parents(".pane").animate({ opacity:"hide" }, "slow");

});

});3 Chain-able transition effects

Now let's see the power of jQuery's chainability. With just several

lines of code, I can make the box fly around with scaling and fading

transition. (view demo)

Line 1: when the <a class="run"> is clicked

Line 2: animate the <div id="box"> opacity=0.1, left property until itreaches 400px, with speed 1200 (milliseconds)

http://www.webdesignerwall.com/demo/jquery/chainable-effects.html






Line 3: then opacity=0.4, top=160px, height=20, width=20, with

speed "slow"

Line 4: then opacity=1, left=0, height=100, width=100, with speed

"slow"

Line 5: then opacity=1, left=0, height=100, width=100, with speed

"slow"

Line 6: then top=0, with speed "fast"

Line 7: then slideUp (default speed = "normal")

Line 8: then slideDown, with speed "slow"

Line 9: return false will prevent the browser jump to the link anchor


$(".run").click(function(){

$("#box").animate({opacity: "0.1", left:"+=400"}, 1200)

.animate({opacity: "0.4", top: "+=160",height: "20", width: "20"}, "slow")

.animate({opacity: "1", left: "0",height: "100", width: "100"}, "slow")

.animate({top: "0"}, "fast")

.slideUp()

.slideDown("slow")return false;

});

});

4a. Accordion #1

Here is a sample of accordion. (view demo)

http://www.webdesignerwall.com/demo/jquery/accordion1.html




The first line will add a CSS class "active" to the first <H3> element

within the <div class="accordion"> (the "active" class will shift thebackground position of the arrow icon). The second line will hide all

the <p> element that is not the first within the <div

class="accordion">.

When the <h3> element is clicked, it will slideToggle the next <p>

and slideUp all its siblings, then toggle the class="active".


$(".accordionh3:first").addClass("active");

$(".accordion p:not(:first)").hide();

$(".accordion h3").click(function(){

$(this).next("p").slideToggle("slow").siblings("p:visible").slideUp("slow");$(this).toggleClass("active");$

(this).siblings("h3").removeClass("active");

});

});




4b. Accordion #2

This example is very similar to accordion#1, but it will let you specify

which panel to open as default. (view demo)

In the CSS stylesheet, set .accordion p to display:none.

Now suppose you want to open the third panel as default. You can

write as $(".accordion2 p").eq(2).show(); (eq = equal).

Note that the indexing starts at zero.


$(".accordion2h3").eq(2).addClass("active");

$(".accordion2 p").eq(2).show();

$(".accordion2 h3").click(function(){$(this).next("p").slideToggle("slow").siblings("p:visible").slideUp("slow");$(this).toggleClass("active");$

(this).siblings("h3").removeClass("active");});

});

5a. Animated hover effect #1

This example will create a nice animated hover effect with fade

in/out. (view demo)


http://www.webdesignerwall.com/demo/jquery/animated-hover1.html





When the menu link is mouseovered, it will find the next <em> and

animate its opacity and top position.


$(".menu a").hover(function() {$(this).next("em").animate({opacity:

"show", top: "-75"}, "slow");}, function() {$(this).next("em").animate({opacity:

"hide", top: "-85"}, "fast");});

});

5b. Animated hover effect #2

This example will get the menu link title attribute, store it in a

variable, and then append to the <em> tag. (view demo)






The first line will append an empty <em> to the menu <a> element.

When the link is mouseovered, it will get thetitle attribute, store it

in a variable "hoverText", and then set the <em> text content with the

hoverText's value.


$(".menu2 a").append("<em></em>");$(".menu2 a").hover(function() {$(this).find("em").animate({opacity:

"show", top: "-75"}, "slow");var hoverText = $(this).attr("title");$(this).find("em").text(hoverText);

}, function() {$(this).find("em").animate({opacity:

"hide", top: "-85"}, "fast");});

});

6. Entire block clickable

This example will show you how to make the entire block element

clickable as seen on my Best Web Gallery's sidebar tabs. (view demo)

http://bestwebgallery.com/

http://www.webdesignerwall.com/demo/jquery/block-clickable.html


http://bestwebgallery.com/




Suppose you have a <ul> list with class="pane-list" and you want to

make the nested <li> clickable (entire block). You can assign the

click function to ".pane-list li"; and when it is clicked, the function

will find the <a> element and redirect the browser location to its

href attribute value.


$(".pane-list li").click(function(){

window.location=$(this).find("a").attr("href"); return false;

});

});

7. Collapsible panels

Let's combine the techniques from the previous examples and create a

serie of collapsible panels (similar to the Gmail inbox panels). NoticeI also used the same technique on Web Designer Wall comment list

and Next2Friends message inbox? (view demo)

http://www.next2friends.com/

http://www.webdesignerwall.com/demo/jquery/collapsible-panels.html


http://www.next2friends.com/




First line: hide all <div class="message_body"> after the first one.

Second line: hide all <li> element after the 5th

Third part: when the <p class="message_head"> is clicked,

slideToggle the next <div class="message_body">

Fourth part: when the <a class="collpase_all_message"> button is

clicked, slideUp all <div class="message_body">

Fifth part: when the <a class="show_all_message"> is clicked, hide

this, show <a class="show_recent_only">, and slideDown all <li>after the fifth one.

Sixth part: when the <a class="show_recent_only"> is clicked, hide

this, show <a class="show_all_message">, and slideUp all <li> after

the 5th.


//hide message_body after the first one

$(".message_list.message_body:gt(0)").hide();

//hide message li after the 5th$(".message_list li:gt(4)").hide();

//toggle message_body$(".message_head").click(function(){

$(this).next(".message_body").slideToggle(500)




return false;});

//collapse all messages

$(".collpase_all_message").click(function(){

$(".message_body").slideUp(500)return false;

});

//show all messages$(".show_all_message").click(function(){$(this).hide()$(".show_recent_only").show()$(".message_list li:gt(4)").slideDown()return false;

});

//show recent messages only$(".show_recent_only").click(function(){$(this).hide()

$(".show_all_message").show()$(".message_list li:gt(4)").slideUp()return false;

});

});

8. Imitating the WordPress Comment Backend

I think most of you have probably seen the WordPress Ajax commentmanagement backend. Well, let's imitate it with jQuery. In order to

animate the background color, you need include the Color

Animations plugin. (view demo)

http://plugins.jquery.com/project/color


http://www.webdesignerwall.com/demo/jquery/wordpress-comments.html






First line: will add "alt" class to even <div class="pane"> (to assign

the grey background on every other <div >)

Second part: when <a class="btn-delete"> is clicked, alert a message,

and then animate the backgroundColor and opacity of <div

class="pane">Third part: when <a class="btn-unapprove"> is clicked, first animate

the backgroundColor of <div class="pane"> to yellow, then white,

and addClass "spam"

Fourth part: when <a class="btn-approve"> is clicked, first animate

the backgroundColor of <div class="pane"> to green, then white, and

removeClass "spam"

Fifth part: when <a class="btn-spam"> is clicked, animate the

backgroundColor to red and opacity ="hide"

//don't forget to include the Color Animationsplugin//<script type="text/javascript"src="jquery.color.js"></script>


$(".pane:even").addClass("alt");




$(".pane .btn-delete").click(function(){alert("This comment will be deleted!");

$

(this).parents(".pane").animate({ backgroundColor: "#fbc7c7" }, "fast")

.animate({ opacity: "hide" }, "slow")return false;

});

$(".pane .btn-unapprove").click(function(){

$(this).parents(".pane").animate({ backgroundColor: "#fff568" }, "fast")

.animate({ backgroundColor: "#ffffff" },"slow")

.addClass("spam")return false;

});

$(".pane .btn-approve").click(function(){$

(this).parents(".pane").animate({ backgroundColor: "#dafda5" }, "fast")

.animate({ backgroundColor: "#ffffff" },"slow")

.removeClass("spam")return false;

});$(".pane .btn-spam").click(function(){$

(this).parents(".pane").animate({ backgroundColor: "#fbc7c7" }, "fast")

.animate({ opacity: "hide" }, "slow")return false;

});

});



9. Image replacement gallery

Suppose you have a portfolio where you want to showcase multi

images without jumping to another page, you can load the JPG into

the target element. (view demo)

First append an empty <em> to H2.

When a link within the <p class=thumbs> is clicked:

- store its href attribute into a variable "largePath"

- store its title attribute into a variable "largeAlt"

- replace the <img id="largeImg"> scr attribute with the variable"largePath" and replace the alt attribute with the variable "largeAlt"

- Set the em content (within the h2) with the variable largeAlt (plus

the brackets)


$("h2").append('<em></em>')

$(".thumbs a").click(function(){

http://www.webdesignerwall.com/demo/jquery/img-replacement.html





var largePath = $(this).attr("href");var largeAlt = $(this).attr("title");

$("#largeImg").attr({ src: largePath,

alt: largeAlt });

$("h2 em").html(" (" + largeAlt + ")");return false;

});

});

10. Styling different link types

With most modern browsers, styling the link selector is very easy. For

example, to style the link to .pdf file, you can simply use the

following CSS rule: a[href $='.pdf'] { ... }.

Unfortunately, IE 6 doesn't support this (this is another reason why

we hate IE!). To get around this, you can do it with jQuery. (view

demo)

The first three lines should be very straight foward. They just a CSS

class to the <a> element according to their href attribute.

The second part will get all <a> element that does not have

"http://www.webdesignerwall.com" and/or does not start with "#" in

the href attribute, then addClass "external" and set target= "_blank".


$("a[@href$=pdf]").addClass("pdf");

http://www.webdesignerwall.com/general/trash-all-ie-hacks/

http://www.webdesignerwall.com/demo/jquery/link-types.html


http://www.webdesignerwall.com/general/trash-all-ie-hacks/




$("a[@href$=zip]").addClass("zip");

$("a[@href$=psd]").addClass("psd");

$("a:not([@href*=http://www.webdesignerwall.com])").not("[href^=#]")

.addClass("external")

.attr({ target: "_blank" });

});

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