Galería de videos para el blog – Culture – Lawyers

En esta entrada vamos a vercómo crear una galería de videos de YouTube usando jQuery. Es una elegante galería a la que le caben 5 videos y que por sus dimesiones la pondremos debajo de la cabecera del blog. En realidad puedes ponerla en cualquier parte, pero se recomienda en esa área por los 765px que mide de ancho la galería.

Puedes verla funcionando en estedemo.

Para agregar esteslider de videos en tu blog entra enPlantilla | Edición de HTML y antes de/head agrega los scripts:

script src='http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js' type='text/javascript'/

script
//![CDATA[
/*hoverscroll v.0.2.4*/
(function($) {
$.fn.hoverscroll = function(params) {
if (!params) { params = {}; }
params = $.extend({}, $.fn.hoverscroll.params, params);
this.each(function() {
var $this = $(this);
if (params.debug) {$.log('[HoverScroll] Trying to create hoverscroll on element ' + this.tagName + '#' + this.id);}
if (params.fixedArrows) {
$this.wrap('div class="fixed-listcontainer"/div')
}
else {
$this.wrap('div class="listcontainer"/div');
}

$this.addClass('list');
var listctnr = $this.parent();
listctnr.wrap('div class="ui-widget-content hoverscroll' +
(params.rtl && !params.vertical ? " rtl" : "") + '"/div');
//listctnr.wrap('div class="hoverscroll"/div');

var ctnr = listctnr.parent();

var leftArrow, rightArrow, topArrow, bottomArrow;
if (params.arrows) {
if (!params.vertical) {
if (params.fixedArrows) {
leftArrow = 'div class="fixed-arrow left"/div';
rightArrow = 'div class="fixed-arrow right"/div';

listctnr.before(leftArrow).after(rightArrow);
}
else {
leftArrow = 'div class="arrow left"/div';
rightArrow = 'div class="arrow right"/div';

listctnr.append(leftArrow).append(rightArrow);
}
}
else {
if (params.fixedArrows) {
topArrow = 'div class="fixed-arrow top"/div';
bottomArrow = 'div class="fixed-arrow bottom"/div';

listctnr.before(topArrow).after(bottomArrow);
}
else {
topArrow = 'div class="arrow top"/div';
bottomArrow = 'div class="arrow bottom"/div';

listctnr.append(topArrow).append(bottomArrow);
}
}
}
ctnr.width(params.width).height(params.height);

if (params.arrows && params.fixedArrows) {
if (params.vertical) {
topArrow = listctnr.prev();
bottomArrow = listctnr.next();

listctnr.width(params.width)
.height(params.height - (topArrow.height() + bottomArrow.height()));
}
else {
leftArrow = listctnr.prev();
rightArrow = listctnr.next();

listctnr.height(params.height)
.width(params.width - (leftArrow.width() + rightArrow.width()));
}
}
else {
listctnr.width(params.width).height(params.height);
}

var size = 0;

if (!params.vertical) {
ctnr.addClass('horizontal');
$this.children().each(function() {
$(this).addClass('item');

if ($(this).outerWidth) {
size += $(this).outerWidth(true);
}
else {
size += $(this).width() + parseInt($(this).css('padding-left')) + parseInt($(this).css('padding-right'))
+ parseInt($(this).css('margin-left')) + parseInt($(this).css('margin-right'));
}
});
$this.width(size);

if (params.debug) {
$.log('[HoverScroll] Computed content width : ' + size + 'px');
}
if (ctnr.outerWidth) {
size = ctnr.outerWidth();
}
else {
size = ctnr.width() + parseInt(ctnr.css('padding-left')) + parseInt(ctnr.css('padding-right'))
+ parseInt(ctnr.css('margin-left')) + parseInt(ctnr.css('margin-right'));
}

if (params.debug) {
$.log('[HoverScroll] Computed container width : ' + size + 'px');
}
}
else {
ctnr.addClass('vertical');
$this.children().each(function() {
$(this).addClass('item')

if ($(this).outerHeight) {
size += $(this).outerHeight(true);
}
else {
size += $(this).height() + parseInt($(this).css('padding-top')) + parseInt($(this).css('padding-bottom'))
+ parseInt($(this).css('margin-bottom')) + parseInt($(this).css('margin-bottom'));
}
});
$this.height(size);

if (params.debug) {
$.log('[HoverScroll] Computed content height : ' + size + 'px');
}
if (ctnr.outerHeight) {
size = ctnr.outerHeight();
}
else {
size = ctnr.height() + parseInt(ctnr.css('padding-top')) + parseInt(ctnr.css('padding-bottom'))
+ parseInt(ctnr.css('margin-top')) + parseInt(ctnr.css('margin-bottom'));
}

if (params.debug) {
$.log('[HoverScroll] Computed container height : ' + size + 'px');
}
}
var zone = {
1: {action: 'move', from: 0, to: 0.06 * size, direction: -1 , speed: 16},
2: {action: 'move', from: 0.06 * size, to: 0.15 * size, direction: -1 , speed: 8},
3: {action: 'move', from: 0.15 * size, to: 0.25 * size, direction: -1 , speed: 4},
4: {action: 'move', from: 0.25 * size, to: 0.4 * size, direction: -1 , speed: 2},
5: {action: 'stop', from: 0.4 * size, to: 0.6 * size},
6: {action: 'move', from: 0.6 * size, to: 0.75 * size, direction: 1 , speed: 2},
7: {action: 'move', from: 0.75 * size, to: 0.85 * size, direction: 1 , speed: 4},
8: {action: 'move', from: 0.85 * size, to: 0.94 * size, direction: 1 , speed: 8},
9: {action: 'move', from: 0.94 * size, to: size, direction: 1 , speed: 16}
}

ctnr[0].isChanging = false;
ctnr[0].direction = 0;
ctnr[0].speed = 1;
function checkMouse(x, y) {
x = x - ctnr.offset().left;
y = y - ctnr.offset().top;

var pos;
if (!params.vertical) {pos = x;}
else {pos = y;}

for (i in zone) {
if (pos = zone[i].from && pos zone[i].to) {
if (zone[i].action == 'move') {startMoving(zone[i].direction, zone[i].speed);}
else {stopMoving();}
}
}
}

function setArrowOpacity() {
if (!params.arrows || params.fixedArrows) {return;}

var maxScroll;
var scroll;

if (!params.vertical) {
maxScroll = listctnr[0].scrollWidth - listctnr.width();
scroll = listctnr[0].scrollLeft;
}
else {
maxScroll = listctnr[0].scrollHeight - listctnr.height();
scroll = listctnr[0].scrollTop;
}
var limit = params.arrowsOpacity;
var opacity = (scroll / maxScroll) * limit;

if (opacity limit) { opacity = limit; }
if (isNaN(opacity)) { opacity = 0; }

var done = false;
if (opacity = 0) {
$('div.arrow.left, div.arrow.top', ctnr).hide();
if(maxScroll 0) {
$('div.arrow.right, div.arrow.bottom', ctnr).show().css('opacity', limit);
}
done = true;
}
if (opacity = limit || maxScroll = 0) {
$('div.arrow.right, div.arrow.bottom', ctnr).hide();
done = true;
}

if (!done) {
$('div.arrow.left, div.arrow.top', ctnr).show().css('opacity', opacity);
$('div.arrow.right, div.arrow.bottom', ctnr).show().css('opacity', (limit - opacity));
}
}

function startMoving(direction, speed) {
if (ctnr[0].direction != direction) {
if (params.debug) {
$.log('[HoverScroll] Starting to move. direction: ' + direction + ', speed: ' + speed);
}

stopMoving();
ctnr[0].direction = direction;
ctnr[0].isChanging = true;
move();
}
if (ctnr[0].speed != speed) {
if (params.debug) {
$.log('[HoverScroll] Changed speed: ' + speed);
}

ctnr[0].speed = speed;
}
}

function stopMoving() {
if (ctnr[0].isChanging) {
if (params.debug) {
$.log('[HoverScroll] Stoped moving');
}

ctnr[0].isChanging = false;
ctnr[0].direction = 0;
ctnr[0].speed = 1;
clearTimeout(ctnr[0].timer);
}
}

function move() {
if (ctnr[0].isChanging == false) {return;}

setArrowOpacity();

var scrollSide;
if (!params.vertical) {scrollSide = 'scrollLeft';}
else {scrollSide = 'scrollTop';}

listctnr[0][scrollSide] += ctnr[0].direction * ctnr[0].speed;
ctnr[0].timer = setTimeout(function() {move();}, 50);
}

if (params.rtl && !params.vertical) {
listctnr[0].scrollLeft = listctnr[0].scrollWidth - listctnr.width();
}

ctnr
.mousemove(function(e) {checkMouse(e.pageX, e.pageY);})
.bind('mouseleave', function() {stopMoving();});

this.startMoving = startMoving;
this.stopMoving = stopMoving;

if (params.arrows && !params.fixedArrows) {
// Initialise arrow opacity
setArrowOpacity();
}
else {
// Hide arrows
$('.arrowleft, .arrowright, .arrowtop, .arrowbottom', ctnr).hide();
}
});

return this;
};

if (!$.fn.offset) {
$.fn.offset = function() {
this.left = this.top = 0;

if (this[0] && this[0].offsetParent) {
var obj = this[0];
do {
this.left += obj.offsetLeft;
this.top += obj.offsetTop;
} while (obj = obj.offsetParent);
}

return this;
}
}

$.fn.hoverscroll.params = {
vertical: false,
width: 400,
height: 50,
arrows: true,
arrowsOpacity: 0.7,
fixedArrows: false,
rtl: false,
debug: false
};
$.log = function() {
try {console.log.apply(console, arguments);}
catch (e) {
try {opera.postError.apply(opera, arguments);}
catch (e) {}
}
};
})(jQuery);

// Aplicar desde aquí el hack de compatibilidad con Scriptaculous en caso de ser necesario

$(function(){
$("#slidervideo-tabs a").click(function(){
var container = $("#slidervideo-content");
container.html("img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhYz3yq3U22M5zGpQcyYB8TLTGXUv8H31XcRrr_wsGpbx8BUSjKvbpsbtotvo8G96sPpcrUv5hW3F61RyrMwjfSkaLeFdaKQCrbkS6ksL2O9WlakOEibtFtU0qvR7U_6bzwxv9yo449IPY/s400/loading.gif' class='loading-vid' /");
var id = $(this).attr("href").slice(1);
loadvideo(id);
return false;
});
$("#slidervideo-tabs").hoverscroll({vertical:true,width:300,height:330,arrows:false});
$("#slidervideo-tabs li").hover(function(){$(this).addClass("hover");},function(){$(this).removeClass("hover");});
loadvideo();
});

function loadvideo (hash){if(hash){hash = hash.slice(3);$("#slidervideo-content").html(video[hash]);$("#slidervideo-tabs li").removeClass("actVid");$("#slidervideo-tabs a[href=#vid"+hash+"]").parent().addClass("actVid");}else{$("#slidervideo-content").html(video[1]);$("#slidervideo-tabs li").removeClass("actVid");$("#slidervideo-tabs a[href=#vid1]").parent().addClass("actVid");}}
//
/script

Luego agrega los estilos antes de/b:skin

/* Galería de videos
----------------------------------------------- */
#slidervideo {
background:#000; /* Color de fondo */
clear:both;
margin:0 auto;
padding:5px;
width:765px;
border-radius: 5px;
-moz-background-clip: padding;
-webkit-background-clip: padding-box;
background-clip: padding-box;
}
#slidervideo, #slidervideo-content, #slidervideo-tabs {height:350px;overflow:hidden;}
#slidervideo-content {color:#fff;float:left;text-align:center;width:460px;z-index:1;}
.loading-vid {display:block;margin:165px auto 0;}
#slidervideo-tabs {float:right;width:300px;margin:0;}
#slidervideo-tabs li {background:url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHJZjgd1G9-dVtaAUR6BpbiO1a6S1yeMshMSc6x6xUsaLtJ2iZjcz3HD6y2susCZApjtOI-GGlLUvDs2R9bEt8Yz6uG9EN_80mWoqVUQJsdTLrZPqH9ZUwG4acwPm_bz8E39_ixcXuM1c/s0/tab_bg.jpeg) repeat-x top left;float:left;height:60px;padding:5px;width:290px;list-style:none;}
#slidervideo-tabs li a {padding:0 !important;border:0 !important;}
#slidervideo-tabs li.hover {background:#333;}
#slidervideo-tabs li.actVid {background:#555;}
#slidervideo-tabs li img.thumb-vid {background-color:#fff;float:left;height:52px;margin:0 8px 0 0;padding:5px;width:52px;}
#slidervideo-tabs li span.vidTit {
display:block;
color:#CD332D; /* Color de los títulos */
font-size:14px; /* Tamaño de los títulos */
font-weight:bold;
text-decoration:none;
}
#slidervideo-tabs li .vidDesc {
display:block;
color:#fff;/* Color de la descripción */
font-size:12px;/* Tamaño del texto de la descripción */
font-weight:bold;
text-decoration:none;
}
#slidervideo-tabs a {text-decoration:none;}
#slidervideo-tabs li.actVid .vidDesc {color:#fff;}
.ui-widget-content{float:right;}
.tabs-outer {background-image: none !important;}
#slidervideo-tabs li a:hover {background: none !important;}

Ahora en un elementoHTML/Javascript pega la estructura del slider, este gadget es el que pondrás debajo de la cabecera:

script
var video = [];
video[1] = 'iframe width="460" height="345" src="http://www.youtube.com/embed/ID_video_1" frameborder="0" allowfullscreen/iframe';
video[2] = 'iframe width="460" height="345" src="http://www.youtube.com/embed/ID_video_2" frameborder="0" allowfullscreen/iframe';
video[3] = 'iframe width="460" height="345" src="http://www.youtube.com/embed/ID_video_3" frameborder="0" allowfullscreen/iframe';
video[4] = 'iframe width="460" height="345" src="http://www.youtube.com/embed/ID_video_4" frameborder="0" allowfullscreen/iframe';
video[5] = 'iframe width="460" height="345" src="http://www.youtube.com/embed/ID_video_5" frameborder="0" allowfullscreen/iframe';
/script
div id="slidervideo"
div id="slidervideo-content"/div
ul id="slidervideo-tabs"
lia href="#vid1"img src="//i2.ytimg.com/vi/ID_video_1/default.jpg" class="thumb-vid" /span class="vidTit"Nombre del video/spanspan class="vidDesc"Descripción del video/span/a/li

lia href="#vid2"img src="//i2.ytimg.com/vi/ID_video_2/default.jpg" class="thumb-vid" /span class="vidTit"Nombre del video/spanspan class="vidDesc"Descripción del video/span/a/li

lia href="#vid3"img src="//i2.ytimg.com/vi/ID_video_3/default.jpg" class="thumb-vid" /span class="vidTit"Nombre del video/spanspan class="vidDesc"Descripción del video/span/a/li

lia href="#vid4"img src="//i2.ytimg.com/vi/ID_video_4/default.jpg" class="thumb-vid" /span class="vidTit"Nombre del video/spanspan class="vidDesc"Descripción del video/span/a/li

lia href="#vid5"img src="//i2.ytimg.com/vi/ID_video_5/default.jpg" class="thumb-vid" /span class="vidTit"Nombre del video/spanspan class="vidDesc"Descripción del video/span/a/li

/ul
/div

Agrega los IDs de los videos, sus nombres y su descripción y listo. La descripción deberá ser muy breve para que no tengas problemas de espacios.

Si no sabes cómo obtener la ID de un video abre el video en YouTube y mira en la barra de direcciones, los últimos caracteres son la ID que necesitas.

Toma en cuenta que la ID de cada video se agrega dos veces, uno es para que muestre el video y otra para la miniatura de las pestañas.

Es una galería que como funciona con jQuery deberás cerciorarte deno repetir la versión del script en caso de que ya tengas jQuery, ysi usas Scriptaculous deberás aplicarle unos cambios, casi al final del primer código verás en color azul desde dónde deberás aplicárselos en caso de que lo necesites.

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