Tạo Gallery (slider) trình chiếu ảnh cho blogger
Posted by Tung Thanh Ly Vietnam on Tuesday, October 21, 2014 with No comments
1- Đăng nhập vào blog
2- Chọn Bố cục
3- Tại một tiện ích HTML/Javascipt và dán code dưới vào.
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.0/jquery.min.js"></script>
<style type="text/css">
/*Make sure your page contains a valid doctype at the top*/
#simplegallery1{ //CSS for Simple Gallery Example 1
position: relative; /*keep this intact*/
visibility: hidden; /*keep this intact*/
border: 1px solid #666;
}
#simplegallery1 .gallerydesctext{ //CSS for description DIV of Example 1 (if defined)
text-align: left;
padding: 2px 5px;
font: 10px normal verdana, arial;
}
</style>
<script type="text/javascript" >
var simpleGallery_navpanel={
loadinggif: 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg4GaciJOkf5mmph40pTzbZm_sfM9kXtOkW8tIP8c058zHPNMMun31QOFNJa9k6GYTK-3TYIAznb04K15J7g4f3D-vmbFBvNKI8uRPX1Or01XzSerKkTdpJRQBpdsk2obGb5RsVq4bVafE/s1600/ajaxload-namkna-blogspot-com.png', //full path or URL to loading gif image
panel: {height:'45px', opacity:0.5, paddingTop:'5px', fontStyle:'bold 11px Verdana'}, //customize nav panel container
images: [ 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEippSb8rAPbuR7XKImAYN55V55vrkkB2AlVo6cpgLP9nf-rtHqoFrWTlp9-PAfE7w3WgsTvQDtEkxsI9gSFvSh-wdT2dWAJInEX_ODSyF7HdzjYLLPM3iQJ8S2MT4SxzZyrWzcnqM8yRbM/s1600/left-namkna-blogspot-com.png', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhktjMBMiOkqOm6XExMD4Xz5q-nIXUtMXHdmju71ZrLYPnVUolicWbogfBw-zT1sNz26fMEV8aQWQw6kyAtM4Qo1DqA0Iam3_JgxWCJjeTx_21FbUR5MZXp94x4DmHH5tlXsjdVuezjcqU/s1600/play-namkna-blogspot-com.png', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggiY3o_3AsBPib6MtN0aHSyuUmIHE3r89HncfGO1JJzonJl8oaJBufS2t_OPX1K3xzFl794HiaYF1voujo-6S347sy5yo266uYMrNg4dBwGEhBCjKWhS8vumjJ6KFarEGnYSIeSL1E2OM/s1600/right-namkna-blogspot-com.png', 'https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEid_65jtbvV1Y1U0Shwvsdivm9v2ePZoTW1J4OlFdWtcANvEPuDS0h4ggQ_Wv7SMgq8Uvdx1yfICNKBKUTaJBkXyhBGL_AiN4Md82dPzLSgxvXtUNfAzwBxDIWI9ytLKfhqhnUV-ikUnYk/s1600/pause-namklna-blogspot-com.png'], //nav panel images (in that order)
imageSpacing: {offsetTop:[-4, 0, -4], spacing:10}, //top offset of left, play, and right images, PLUS spacing between the 3 images
slideduration: 500 //duration of slide up animation to reveal panel
}
function simpleGallery(settingarg){
this.setting=settingarg
settingarg=null
var setting=this.setting
setting.panelheight=(parseInt(setting.navpanelheight)>5)? parseInt(setting.navpanelheight) : parseInt(simpleGallery_navpanel.panel.height)
setting.fadeduration=parseInt(setting.fadeduration)
setting.curimage=(setting.persist)? simpleGallery.routines.getCookie("gallery-"+setting.wrapperid) : 0
setting.curimage=setting.curimage || 0 //account for curimage being null if cookie is empty
setting.preloadfirst=(!jQuery.Deferred)? false : (typeof setting.preloadfirst!="undefined")? setting.preloadfirst : true //Boolean on whether to preload all images before showing gallery
setting.ispaused=!setting.autoplay[0] //ispaused reflects current state of gallery, autoplay[0] indicates whether gallery is set to auto play
setting.currentstep=0 //keep track of # of slides slideshow has gone through
setting.totalsteps=setting.imagearray.length*setting.autoplay[2] //Total steps limit: # of images x # of user specified cycles
setting.fglayer=0, setting.bglayer=1 //index of active and background layer (switches after each change of slide)
setting.oninit=setting.oninit || function(){}
setting.onslide=setting.onslide || function(){}
var preloadimages=[], longestdesc=null, loadedimages=0
var dfd = (setting.preloadfirst)? jQuery.Deferred() : {resolve:function(){}, done:function(f){f()}} //create real deferred object unless preloadfirst setting is false or browser doesn't support it
setting.longestdesc="" //get longest description of all slides. If no desciptions defined, variable contains ""
setting.$loadinggif=(function(){ //preload and ref ajax loading gif
var loadgif=new Image()
loadgif.src=simpleGallery_navpanel.loadinggif
return jQuery(loadgif).css({verticalAlign:'middle'}).wrap('<div style="position:absolute;text-align:center;width:100%;height:100%" />').parent()
})()
for (var i=0; i<setting.imagearray.length; i++){ //preload slideshow images
preloadimages[i]=new Image()
preloadimages[i].src=setting.imagearray[i][0]
if (setting.imagearray[i][3] && setting.imagearray[i][3].length>setting.longestdesc.length)
setting.longestdesc=setting.imagearray[i][3]
jQuery(preloadimages[i]).bind('load error', function(){
loadedimages++
if (loadedimages==setting.imagearray.length){
dfd.resolve() //indicate all images have been loaded
}
})
}
var slideshow=this
jQuery(document).ready(function($){
var setting=slideshow.setting
setting.$wrapperdiv=$('#'+setting.wrapperid).css({position:'relative', visibility:'visible', background:'black', overflow:'hidden', width:setting.dimensions[0], height:setting.dimensions[1]}).empty() //main gallery DIV
if (setting.$wrapperdiv.length==0){ //if no wrapper DIV found
alert("Error: DIV with ID \""+setting.wrapperid+"\" not found on page.")
return
}
setting.$gallerylayers=$('<div class="gallerylayer"></div><div class="gallerylayer"></div>') //two stacked DIVs to display the actual slide
.css({position:'absolute', left:0, top:0})
.appendTo(setting.$wrapperdiv)
setting.$loadinggif.css({top:setting.dimensions[1]/2-30}).appendTo(setting.$wrapperdiv) //30 is assumed height of ajax loading gif
setting.gallerylayers=setting.$gallerylayers.get() //cache stacked DIVs as DOM objects
setting.navbuttons=simpleGallery.routines.addnavpanel(setting) //get 4 nav buttons DIVs as DOM objects
if (setting.longestdesc!="") //if at least one slide contains a description (feature is enabled)
setting.descdiv=simpleGallery.routines.adddescpanel(setting)
$(setting.navbuttons).filter('img.navimages').css({opacity:0.8})
.bind('mouseover mouseout', function(e){
$(this).css({opacity:(e.type=="mouseover")? 1 : 0.8})
})
.bind('click', function(e){
var keyword=e.target.title.toLowerCase()
slideshow.navigate(keyword) //assign behavior to nav images
})
dfd.done(function(){ //execute when all images have loaded
setting.$loadinggif.remove()
setting.$wrapperdiv.bind('mouseenter', function(){slideshow.showhidenavpanel('show')})
setting.$wrapperdiv.bind('mouseleave', function(){slideshow.showhidenavpanel('hide')})
slideshow.showslide(setting.curimage) //show initial slide
setting.oninit.call(slideshow) //trigger oninit() event
$(window).bind('unload', function(){ //clean up and persist
$(slideshow.setting.navbuttons).unbind()
if (slideshow.setting.persist) //remember last shown image's index
simpleGallery.routines.setCookie("gallery-"+setting.wrapperid, setting.curimage)
jQuery.each(slideshow.setting, function(k){
if (slideshow.setting[k] instanceof Array){
for (var i=0; i<slideshow.setting[k].length; i++){
if (slideshow.setting[k][i].tagName=="DIV") //catches 2 gallerylayer divs, gallerystatus div
slideshow.setting[k][i].innerHTML=null
slideshow.setting[k][i]=null
}
}
if (slideshow.setting[k].innerHTML) //catch gallerydesctext div
slideshow.setting[k].innerHTML=null
slideshow.setting[k]=null
})
slideshow=slideshow.setting=null
})
}) //end deferred code
}) //end jQuery domload
}
simpleGallery.prototype={
navigate:function(keyword){
clearTimeout(this.setting.playtimer)
this.setting.totalsteps=100000 //if any of the nav buttons are clicked on, set totalsteps limit to an "unreachable" number
if (!isNaN(parseInt(keyword))){
this.showslide(parseInt(keyword))
}
else if (/(prev)|(next)/i.test(keyword)){
this.showslide(keyword.toLowerCase())
}
else{ //if play|pause button
var slideshow=this
var $playbutton=$(this.setting.navbuttons).eq(1)
if (!this.setting.ispaused){ //if pause Gallery
this.setting.autoplay[0]=false
$playbutton.attr({title:'Play', src:simpleGallery_navpanel.images[1]})
}
else if (this.setting.ispaused){ //if play Gallery
this.setting.autoplay[0]=true
this.setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, this.setting.autoplay[1])
$playbutton.attr({title:'Pause', src:simpleGallery_navpanel.images[3]})
}
slideshow.setting.ispaused=!slideshow.setting.ispaused
}
},
showslide:function(keyword){
var slideshow=this
var setting=slideshow.setting
var totalimages=setting.imagearray.length
var imgindex=(keyword=="next")? (setting.curimage<totalimages-1? setting.curimage+1 : 0)
: (keyword=="prev")? (setting.curimage>0? setting.curimage-1 : totalimages-1)
: Math.min(keyword, totalimages-1)
setting.gallerylayers[setting.bglayer].innerHTML=simpleGallery.routines.getSlideHTML(setting.imagearray[imgindex])
setting.$gallerylayers.eq(setting.bglayer).css({zIndex:1000, opacity:0}) //background layer becomes foreground
.stop().css({opacity:0}).animate({opacity:1}, setting.fadeduration, function(){ //Callback function after fade animation is complete:
clearTimeout(setting.playtimer)
setting.gallerylayers[setting.bglayer].innerHTML=null //empty bglayer (previously fglayer before setting.fglayer=setting.bglayer was set below)
try{
setting.onslide.call(slideshow, setting.gallerylayers[setting.fglayer], setting.curimage)
}catch(e){
alert("Simple Controls Gallery: An error has occured somwhere in your code attached to the \"onslide\" event: "+e)
}
setting.currentstep+=1
if (setting.autoplay[0]){
if (setting.currentstep<=setting.totalsteps)
setting.playtimer=setTimeout(function(){slideshow.showslide('next')}, setting.autoplay[1])
else
slideshow.navigate("play/pause")
}
}) //end callback function
setting.gallerylayers[setting.fglayer].style.zIndex=999 //foreground layer becomes background
setting.fglayer=setting.bglayer
setting.bglayer=(setting.bglayer==0)? 1 : 0
setting.curimage=imgindex
setting.navbuttons[3].innerHTML=(setting.curimage+1) + '/' + setting.imagearray.length
if (setting.imagearray[imgindex][3]){ //if this slide contains a description
setting.$descpanel.css({visibility:'visible'})
setting.descdiv.innerHTML=setting.imagearray[imgindex][3]
}
else if (setting.longestdesc!=""){ //if at least one slide contains a description (feature is enabled)
setting.descdiv.innerHTML=null
setting.$descpanel.css({visibility:'hidden'})
}
},
showhidenavpanel:function(state){
var setting=this.setting
var endpoint=(state=="show")? setting.dimensions[1]-setting.panelheight : this.setting.dimensions[1]
setting.$navpanel.stop().animate({top:endpoint}, simpleGallery_navpanel.slideduration)
if (setting.longestdesc!="") //if at least one slide contains a description (feature is enabled)
this.showhidedescpanel(state)
},
showhidedescpanel:function(state){
var setting=this.setting
var endpoint=(state=="show")? 0 : -setting.descpanelheight
setting.$descpanel.stop().animate({top:endpoint}, simpleGallery_navpanel.slideduration)
}
}
simpleGallery.routines={
getSlideHTML:function(imgelement){
var layerHTML=(imgelement[1])? '<a href="'+imgelement[1]+'" target="'+imgelement[2]+'">\n' : '' //hyperlink slide?
layerHTML+='<img src="'+imgelement[0]+'" style="border-width:0" />'
layerHTML+=(imgelement[1])? '</a>' : ''
return layerHTML //return HTML for this layer
},
addnavpanel:function(setting){
var interfaceHTML=''
for (var i=0; i<3; i++){
var imgstyle='position:relative; border:0; cursor:hand; cursor:pointer; top:'+simpleGallery_navpanel.imageSpacing.offsetTop[i]+'px; margin-right:'+(i!=2? simpleGallery_navpanel.imageSpacing.spacing+'px' : 0)
var title=(i==0? 'Prev' : (i==1)? (setting.ispaused? 'Play' : 'Pause') : 'Next')
var imagesrc=(i==1)? simpleGallery_navpanel.images[(setting.ispaused)? 1 : 3] : simpleGallery_navpanel.images[i]
interfaceHTML+='<img class="navimages" title="' + title + '" src="'+ imagesrc +'" style="'+imgstyle+'" /> '
}
interfaceHTML+='<div class="gallerystatus" style="margin-top:1px">' + (setting.curimage+1) + '/' + setting.imagearray.length + '</div>'
setting.$navpanel=$('<div class="navpanellayer"></div>')
.css({position:'absolute', width:'100%', height:setting.panelheight, left:0, top:setting.dimensions[1], font:simpleGallery_navpanel.panel.fontStyle, zIndex:'1001'})
.appendTo(setting.$wrapperdiv)
$('<div class="navpanelbg"></div><div class="navpanelfg"></div>') //create inner nav panel DIVs
.css({position:'absolute', left:0, top:0, width:'100%', height:'100%'})
.eq(0).css({background:'black', opacity:simpleGallery_navpanel.panel.opacity}).end() //"navpanelbg" div
.eq(1).css({paddingTop:simpleGallery_navpanel.panel.paddingTop, textAlign:'center', color:'white'}).html(interfaceHTML).end() //"navpanelfg" div
.appendTo(setting.$navpanel)
return setting.$navpanel.find('img.navimages, div.gallerystatus').get() //return 4 nav related images and DIVs as DOM objects
},
adddescpanel:function(setting){
setting.$descpanel=$('<div class="gallerydesc"><div class="gallerydescbg"></div><div class="gallerydescfg"><div class="gallerydesctext"></div></div></div>')
.css({position:'absolute', width:'100%', left:0, top:-1000, zIndex:'1001'})
.find('div').css({position:'absolute', left:0, top:0, width:'100%'})
.eq(0).css({background:'black', opacity:simpleGallery_navpanel.panel.opacity}).end() //"gallerydescbg" div
.eq(1).css({color:'white'}).end() //"gallerydescfg" div
.eq(2).html(setting.longestdesc).end().end()
.appendTo(setting.$wrapperdiv)
var $gallerydesctext=setting.$descpanel.find('div.gallerydesctext')
setting.descpanelheight=$gallerydesctext.outerHeight()
setting.$descpanel.css({top:-setting.descpanelheight, height:setting.descpanelheight}).find('div').css({height:'100%'})
return setting.$descpanel.find('div.gallerydesctext').get(0) //return gallery description DIV as a DOM object
},
getCookie:function(Name){
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return null
},
setCookie:function(name, value){
document.cookie = name+"=" + value + ";path=/"
}
}
</script>
<script type="text/javascript">
var mygallery=new simpleGallery({
wrapperid: "simplegallery1", //ID of main gallery container,
dimensions: [300, 200], //width/height of gallery in pixels. Should reflect dimensions of the images exactly
imagearray: [
["IMAGE LINK 1", "#", "_new", "DESCRIPTION"],
["IMAGE LINK 2", "#", "_new", "DESCRIPTION"],
["IMAGE LINK 3","#", "_new", "DESCRIPTION"],
["IMAGE LINK 4", "#", "_new", "DESCRIPTION"],
["IMAGE LINK 5", "#", "_new", "DESCRIPTION"] ],
autoplay: [true, 2000, 20], //[auto_play_boolean, delay_btw_slide_millisec, cycles_before_stopping_int]
persist: false, //remember last viewed slide and recall within same session?
fadeduration: 500, //transition duration (milliseconds)
oninit:function(){ //event that fires when gallery has initialized/ ready to run
//Keyword "this": references current gallery instance (ie: try this.navigate("play/pause"))
},
onslide:function(curslide, i){ //event that fires after each slide is shown
//Keyword "this": references current gallery instance
//curslide: returns DOM reference to current slide's DIV (ie: try alert(curslide.innerHTML)
//i: integer reflecting current image within collection being shown (0=1st image, 1=2nd etc)
}
})
</script>
<div id="simplegallery1"></div>
=> Tùy chỉnh slider!
- Thay IMAGE LINK 1,2,3,4 thành link ảnh của bạn.
- Thay dấu thăng màu đỏ (#) là liên kết tới bài viết hoặc trang web bạn muốn
- Thay DESCRIPTION là mô tả cho hình ảnh
- Để tăng hoặc giảm thời gian luân chuyển giữa 2 ảnh kế tiếp nhau bạn thay đổi giá trị 2000.
- Để tắt chức năng tự động di chuyển qua các ảnh bạn sửa true thành false.
- Để thay đổi chiều rộng và chiều cao của khung slider bạn hãy thay đổi giá trịn chiều rộng 300 và chiều cao 200.
- font: 10px là cỡ chũ của phần mô tả.
- persist: false tắt chức năng nhớ bức ảnh cuối cùng bạn xem trước khi thoát khỏi hoặc chuyển đến bài khác để tiếp tục chạy. Để baath thì thay persist: false thành persist: true .
- fadeduration: 500 Thời gian chuyển đổi thời gian. tính bằng mi li giây.
0 comments:
Post a Comment