[英]How can I trigger jQuery events when entering or exiting fullscreen?
我的页面上有一个全屏按钮。 我想用它来使目标元素全屏显示。 我想在进入和退出fullscreenOff
时使用特定的jQuery事件( fullscreenOn
/ fullscreenOff
)。 如果浏览器不支持全屏,我也希望删除全屏按钮。
我唯一的代码来自MDN文章 :
var elem = document.getElementById("myvideo");
if (elem.requestFullscreen) {
elem.requestFullscreen();
} else if (elem.msRequestFullscreen) {
elem.msRequestFullscreen();
} else if (elem.mozRequestFullScreen) {
elem.mozRequestFullScreen();
} else if (elem.webkitRequestFullscreen) {
elem.webkitRequestFullscreen();
}
但这不提供特定于开/关的事件。 我怎样才能做到这一点?
我写了一个jQuery函数:
$.fn.fullscreen = function(target){
var elem = $(target)[0]; $d = $(document);
if(elem.requestFullscreen || elem.msRequestFullscreen || elem.mozRequestFullScreen || elem.webkitRequestFullscreen){
function FSon(){ $d.trigger('fullscreen').trigger('fullscreenOn').data('fullscreen',true); }
function FSoff(){ $d.trigger('fullscreen').trigger('fullscreenOff').data('fullscreen',false); }
$d.data('fullscreen',false)
.on('fullscreenchange',function(){
if(document.fullscreen) FSon();
else FSoff();
}).on('mozfullscreenchange',function(){
if(document.mozFullScreen) FSon();
else FSoff();
}).on('webkitfullscreenchange',function(){
if(document.webkitIsFullScreen) FSon();
else FSoff();
}).on('MSFullscreenChange',function(){
if(document.msFullscreenElement) FSon();
else FSoff();
});
this.click(function(){
if(elem.requestFullscreen){
elem.requestFullscreen();
}else if(elem.mozRequestFullScreen){
elem.mozRequestFullScreen();
}else if(elem.webkitRequestFullscreen){
elem.webkitRequestFullscreen();
}else if(elem.msRequestFullscreen){
elem.msRequestFullscreen();
}
});
}else{
this.remove();
}
};
它提供以下功能:
requestFullscreen
或其前缀方法) $(document)
上发布事件: fullscreen
开/关和fullscreenOn
/ fullscreenOff
。 .data
添加到$(document)
: fullscreen
是一个布尔值。 您可以这样称呼它:
$("#myButton").fullscreen("#elementToMakeFullscreen");
这是压缩的函数:
function n(){$d.trigger("fullscreen").trigger("fullscreenOn").data("fullscreen",true)}function r(){$d.trigger("fullscreen").trigger("fullscreenOff").data("fullscreen",false)}$d.data("fullscreen",false).on("fullscreenchange",function(){if(document.fullscreen)n();else r()}).on("mozfullscreenchange",function(){if(document.mozFullScreen)n();else r()}).on("webkitfullscreenchange",function(){if(document.webkitIsFullScreen)n();else r()}).on("MSFullscreenChange",function(){if(document.msFullscreenElement)n();else r()});this.click(function(){if(t.requestFullscreen){t.requestFullscreen()}else if(t.mozRequestFullScreen){t.mozRequestFullScreen()}else if(t.webkitRequestFullscreen){t.webkitRequestFullscreen()}else if(t.msRequestFullscreen){t.msRequestFullscreen()}})}else{this.remove()}}
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