mep-feature-fullscreen.js

(function($) {

	$.extend(mejs.MepDefaults, {
		usePluginFullScreen: true,
		newWindowCallback: function() { return '';},
		fullscreenText: mejs.i18n.t('Fullscreen')
	});

	$.extend(MediaElementPlayer.prototype, {

		isFullScreen: false,

		isNativeFullScreen: false,

		docStyleOverflow: null,

		isInIframe: false,

		buildfullscreen: function(player, controls, layers, media) {

			if (!player.isVideo)
				return;

			player.isInIframe = (window.location != window.parent.location);

			// native events
			if (mejs.MediaFeatures.hasTrueNativeFullScreen) {

				// chrome doesn't alays fire this in an iframe
				var func = function(e) {

					if (mejs.MediaFeatures.isFullScreen()) {
						player.isNativeFullScreen = true;
						// reset the controls once we are fully in full screen
						player.setControlsSize();
					} else {
						player.isNativeFullScreen = false;
						// when a user presses ESC
						// make sure to put the player back into place
						player.exitFullScreen();
					}
				};

				if (mejs.MediaFeatures.hasMozNativeFullScreen) {
					player.globalBind(mejs.MediaFeatures.fullScreenEventName, func);
				} else {
					player.container.bind(mejs.MediaFeatures.fullScreenEventName, func);
				}
			}

			var t = this,
				normalHeight = 0,
				normalWidth = 0,
				container = player.container,
				fullscreenBtn =
					$('<div class="mejs-button mejs-fullscreen-button">' +
						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.fullscreenText + '" aria-label="' + t.options.fullscreenText + '"></button>' +
					'</div>')
					.appendTo(controls);

				if (t.media.pluginType === 'native' || (!t.options.usePluginFullScreen && !mejs.MediaFeatures.isFirefox)) {

					fullscreenBtn.click(function() {
						var isFullScreen = (mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || player.isFullScreen;

						if (isFullScreen) {
							player.exitFullScreen();
						} else {
							player.enterFullScreen();
						}
					});

				} else {

					var hideTimeout = null,
						supportsPointerEvents = (function() {
							// TAKEN FROM MODERNIZR
							var element = document.createElement('x'),
								documentElement = document.documentElement,
								getComputedStyle = window.getComputedStyle,
								supports;
							if(!('pointerEvents' in element.style)){
								return false;
							}
							element.style.pointerEvents = 'auto';
							element.style.pointerEvents = 'x';
							documentElement.appendChild(element);
							supports = getComputedStyle &&
								getComputedStyle(element, '').pointerEvents === 'auto';
							documentElement.removeChild(element);
							return !!supports;
						})();

					//console.log('supportsPointerEvents', supportsPointerEvents);

					if (supportsPointerEvents && !mejs.MediaFeatures.isOpera) { // opera doesn't allow this :(

						// allows clicking through the fullscreen button and controls down directly to Flash

						/*
						 When a user puts his mouse over the fullscreen button, the controls are disabled
						 So we put a div over the video and another one on iether side of the fullscreen button
						 that caputre mouse movement
						 and restore the controls once the mouse moves outside of the fullscreen button
						*/

						var fullscreenIsDisabled = false,
							restoreControls = function() {
								if (fullscreenIsDisabled) {
									// hide the hovers
									for (var i in hoverDivs) {
										hoverDivs[i].hide();
									}

									// restore the control bar
									fullscreenBtn.css('pointer-events', '');
									t.controls.css('pointer-events', '');

                  // prevent clicks from pausing video
                  t.media.removeEventListener('click', t.clickToPlayPauseCallback);

									// store for later
									fullscreenIsDisabled = false;
								}
							},
							hoverDivs = {},
							hoverDivNames = ['top', 'left', 'right', 'bottom'],
							i, len,
							positionHoverDivs = function() {
								var fullScreenBtnOffsetLeft = fullscreenBtn.offset().left - t.container.offset().left,
									fullScreenBtnOffsetTop = fullscreenBtn.offset().top - t.container.offset().top,
									fullScreenBtnWidth = fullscreenBtn.outerWidth(true),
									fullScreenBtnHeight = fullscreenBtn.outerHeight(true),
									containerWidth = t.container.width(),
									containerHeight = t.container.height();

							  for (i in hoverDivs) {
									hoverDivs[i].css({position: 'absolute', top: 0, left: 0}); //, backgroundColor: '#f00'});
								}

								// over video, but not controls
								hoverDivs['top']
									.width( containerWidth )
									.height( fullScreenBtnOffsetTop );

								// over controls, but not the fullscreen button
								hoverDivs['left']
									.width( fullScreenBtnOffsetLeft )
									.height( fullScreenBtnHeight )
									.css({top: fullScreenBtnOffsetTop});

								// after the fullscreen button
								hoverDivs['right']
									.width( containerWidth - fullScreenBtnOffsetLeft - fullScreenBtnWidth )
									.height( fullScreenBtnHeight )
									.css({top: fullScreenBtnOffsetTop,
										 left: fullScreenBtnOffsetLeft + fullScreenBtnWidth});

								// under the fullscreen button
								hoverDivs['bottom']
									.width( containerWidth )
									.height( containerHeight - fullScreenBtnHeight - fullScreenBtnOffsetTop )
									.css({top: fullScreenBtnOffsetTop + fullScreenBtnHeight});
							};

						t.globalBind('resize', function() {
							positionHoverDivs();
						});

						for (i = 0, len = hoverDivNames.length; i < len; i += 1) {
							hoverDivs[hoverDivNames[i]] = $('<div class="mejs-fullscreen-hover" />').appendTo(t.container).mouseover(restoreControls).hide();
						}

						// on hover, kill the fullscreen button's HTML handling, allowing clicks down to Flash
						fullscreenBtn
							.mouseover(function() {

								if (!t.isFullScreen) {

									var buttonPos = fullscreenBtn.offset(),
										containerPos = player.container.offset();

									// move the button in Flash into place
									media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, false);

									// allows click through
									fullscreenBtn.css('pointer-events', 'none');
									t.controls.css('pointer-events', 'none');

                  // restore click-to-play
                  t.media.addEventListener('click', t.clickToPlayPauseCallback);

									// show the divs that will restore things
								  for (i in hoverDivs) {
										hoverDivs[i].show();
									}
									positionHoverDivs();

									fullscreenIsDisabled = true;
								}

							});

						// restore controls anytime the user enters or leaves fullscreen
						media.addEventListener('fullscreenchange', function(e) {
							t.isFullScreen = !t.isFullScreen;
							// don't allow plugin click to pause video - messes with
							// plugin's controls
              if (t.isFullScreen) {
                t.media.removeEventListener('click', t.clickToPlayPauseCallback);
              } else {
                t.media.addEventListener('click', t.clickToPlayPauseCallback);
              }
							restoreControls();
						});


						// the mouseout event doesn't work on the fullscren button, because we already killed the pointer-events
						// so we use the document.mousemove event to restore controls when the mouse moves outside the fullscreen button
						/*
						t.globalBind('mousemove', function(e) {

							// if the mouse is anywhere but the fullsceen button, then restore it all
							if (fullscreenIsDisabled) {

								var fullscreenBtnPos = fullscreenBtn.offset();


								if (e.pageY < fullscreenBtnPos.top || e.pageY > fullscreenBtnPos.top + fullscreenBtn.outerHeight(true) ||
									e.pageX < fullscreenBtnPos.left || e.pageX > fullscreenBtnPos.left + fullscreenBtn.outerWidth(true)
									) {

									fullscreenBtn.css('pointer-events', '');
									t.controls.css('pointer-events', '');

									fullscreenIsDisabled = false;
								}
							}
						});
						*/


					} else {

						// the hover state will show the fullscreen button in Flash to hover up and click

						fullscreenBtn
							.mouseover(function() {

								if (hideTimeout !== null) {
									clearTimeout(hideTimeout);
									delete hideTimeout;
								}

								var buttonPos = fullscreenBtn.offset(),
									containerPos = player.container.offset();

								media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, true);

							})
							.mouseout(function() {

								if (hideTimeout !== null) {
									clearTimeout(hideTimeout);
									delete hideTimeout;
								}

								hideTimeout = setTimeout(function() {
									media.hideFullscreenButton();
								}, 1500);


							});
					}
				}

			player.fullscreenBtn = fullscreenBtn;

			t.globalBind('keydown',function (e) {
				if (((mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || t.isFullScreen) && e.keyCode == 27) {
					player.exitFullScreen();
				}
			});

		},

		cleanfullscreen: function(player) {
			player.exitFullScreen();
		},

        containerSizeTimeout: null,

		enterFullScreen: function() {

			var t = this;

			// firefox+flash can't adjust plugin sizes without resetting :(
			if (t.media.pluginType !== 'native' && (mejs.MediaFeatures.isFirefox || t.options.usePluginFullScreen)) {
				//t.media.setFullscreen(true);
				//player.isFullScreen = true;
				return;
			}

			// store overflow
			docStyleOverflow = document.documentElement.style.overflow;
			// set it to not show scroll bars so 100% will work
			document.documentElement.style.overflow = 'hidden';

			// store sizing
			normalHeight = t.container.height();
			normalWidth = t.container.width();

			// attempt to do true fullscreen (Safari 5.1 and Firefox Nightly only for now)
			if (mejs.MediaFeatures.hasTrueNativeFullScreen) {

				mejs.MediaFeatures.requestFullScreen(t.container[0]);
				//return;

				if (t.isInIframe) {
					// sometimes exiting from fullscreen doesn't work
					// notably in Chrome <iframe>. Fixed in version 17
					setTimeout(function checkFullscreen() {

						if (t.isNativeFullScreen) {

							// check if the video is suddenly not really fullscreen
							if ($(window).width() !== screen.width) {
								// manually exit
								t.exitFullScreen();
							} else {
								// test again
								setTimeout(checkFullscreen, 500);
							}
						}


					}, 500);
				}

			} else if (mejs.MediaFeatures.hasSemiNativeFullScreen) {
				t.media.webkitEnterFullscreen();
				return;
	  	}

			// check for iframe launch
			if (t.isInIframe) {
				var url = t.options.newWindowCallback(this);


				if (url !== '') {

					// launch immediately
					if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
						t.pause();
						window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
						return;
					} else {
						setTimeout(function() {
							if (!t.isNativeFullScreen) {
								t.pause();
								window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
							}
						}, 250);
					}
				}

			}

			// full window code



			// make full size
			t.container
				.addClass('mejs-container-fullscreen')
				.width('100%')
				.height('100%');
				//.css({position: 'fixed', left: 0, top: 0, right: 0, bottom: 0, overflow: 'hidden', width: '100%', height: '100%', 'z-index': 1000});

			// Only needed for safari 5.1 native full screen, can cause display issues elsewhere
			// Actually, it seems to be needed for IE8, too
			//if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
				t.containerSizeTimeout = setTimeout(function() {
					t.container.css({width: '100%', height: '100%'});
					t.setControlsSize();
				}, 500);
			//}

			if (t.pluginType === 'native') {
				t.$media
					.width('100%')
					.height('100%');
			} else {
				t.container.find('.mejs-shim')
					.width('100%')
					.height('100%');

				if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
					t.media.setVideoSize(screen.width,screen.height);          
				} else {
					t.media.setVideoSize($(window).width(),$(window).height());
        }
			}

			t.layers.children('div')
				.width('100%')
				.height('100%');

			if (t.fullscreenBtn) {
				t.fullscreenBtn
					.removeClass('mejs-fullscreen')
					.addClass('mejs-unfullscreen');
			}

			t.setControlsSize();
			t.isFullScreen = true;
		},

		exitFullScreen: function() {

			var t = this;

            // Prevent container from attempting to stretch a second time
            clearTimeout(t.containerSizeTimeout);

			// firefox can't adjust plugins
			if (t.media.pluginType !== 'native' && mejs.MediaFeatures.isFirefox) {
				t.media.setFullscreen(false);
				//player.isFullScreen = false;
				return;
			}

			// come outo of native fullscreen
			if (mejs.MediaFeatures.hasTrueNativeFullScreen && (mejs.MediaFeatures.isFullScreen() || t.isFullScreen)) {
				mejs.MediaFeatures.cancelFullScreen();
			}

			// restore scroll bars to document
			document.documentElement.style.overflow = docStyleOverflow;

			t.container
				.removeClass('mejs-container-fullscreen')
				.width(normalWidth)
				.height(normalHeight);
				//.css({position: '', left: '', top: '', right: '', bottom: '', overflow: 'inherit', width: normalWidth + 'px', height: normalHeight + 'px', 'z-index': 1});

			if (t.pluginType === 'native') {
				t.$media
					.width(normalWidth)
					.height(normalHeight);
			} else {
				t.container.find('object embed')
					.width(normalWidth)
					.height(normalHeight);

				t.media.setVideoSize(normalWidth, normalHeight);
			}

			t.layers.children('div')
				.width(normalWidth)
				.height(normalHeight);

			t.fullscreenBtn
				.removeClass('mejs-unfullscreen')
				.addClass('mejs-fullscreen');

			t.setControlsSize();
			t.isFullScreen = false;
		}
	});

})(mejs.$);