[英]Cannot detect ESC button on Chrome (packaged) app (while fullscreen)
聽起來很容易,但絕對是一場噩夢。 我無法檢測到按下的退出按鈕。 我需要知道是否退出全屏模式,因為您無法阻止按下退出按鈕。 javascript被注入到在webview中加載的HTML中。
$(document).keyup(function(e) {
if (e.keyCode === 27) {
console.log("esc pressed")
}
});
這僅在視圖不是全屏時才有效!
走向全屏:
$('#fullscreen-button').unbind("click").on('click', function(){
viewer.setFullscreen();
});
setFullscreen: function() {
if(!viewer.isFullScreen()) {
console.log("window fullscreen --> ",viewer.isFullScreen());
document.body.webkitRequestFullscreen();
$("#presenter, #slide-container .owl-item").addClass('fullscreen tenTwenty');
$("#viewer-container, #slide-container").addClass('fullscreen thirteenSix');
$('.fullscreen').width(screen.width);
$('.fullscreen').height(screen.height);
$('#slide-container').trigger('refresh.owl.carousel');
} else {
document.webkitCancelFullScreen();
console.log("window fullscreen --> ",viewer.isFullScreen());
$('.tenTwenty').width(1024); $('.tenTwenty').height(768);
$('.thirteenSix').width(1366); $('.thirteenSix').height(768);
$("#presenter, #viewer-container, #slide-container, #slide-container .owl-item").removeClass('fullscreen tenTwenty thirteenSix');
$('#slide-container').trigger('refresh.owl.carousel');
}
},
isFullScreen: function(){
if ( document.webkitFullscreenElement) {
return true;
} else {
return false;
}
},
由於您使用的是jQuery,因此可以添加一個偵聽器來檢查全屏狀態的更改。 它不會告訴您它是打開還是關閉全屏,但您可以檢查所有狀態,如下所示:
// you only need "webkitfullscreenchange" if it's only a chrome app
$(document).on('webkitfullscreenchange mozfullscreenchange fullscreenchange MSFullscreenChange', function() {
if(!viewer.isFullScreen()) {
// you are out of fullscreen
} else {
// you are in fullscreen
}
});
正如我們在評論中所說,vanilla js非常適合:
document.addEventListener('webkitfullscreenchange', function(e) {});
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