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fullscreen.js
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fullscreen.js
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/*
* OpenSeadragon - full-screen support functions
*
* Copyright (C) 2009 CodePlex Foundation
* Copyright (C) 2010-2024 OpenSeadragon contributors
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of CodePlex Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
(function( $ ) {
/**
* Determine native full screen support we can get from the browser.
* @member fullScreenApi
* @memberof OpenSeadragon
* @type {object}
* @property {Boolean} supportsFullScreen Return true if full screen API is supported.
* @property {Function} isFullScreen Return true if currently in full screen mode.
* @property {Function} getFullScreenElement Return the element currently in full screen mode.
* @property {Function} requestFullScreen Make a request to go in full screen mode.
* @property {Function} exitFullScreen Make a request to exit full screen mode.
* @property {Function} cancelFullScreen Deprecated, use exitFullScreen instead.
* @property {String} fullScreenEventName Event fired when the full screen mode change.
* @property {String} fullScreenErrorEventName Event fired when a request to go
* in full screen mode failed.
*/
var fullScreenApi = {
supportsFullScreen: false,
isFullScreen: function() { return false; },
getFullScreenElement: function() { return null; },
requestFullScreen: function() {},
exitFullScreen: function() {},
cancelFullScreen: function() {},
fullScreenEventName: '',
fullScreenErrorEventName: ''
};
// check for native support
if ( document.exitFullscreen ) {
// W3C standard
fullScreenApi.supportsFullScreen = true;
fullScreenApi.getFullScreenElement = function() {
return document.fullscreenElement;
};
fullScreenApi.requestFullScreen = function( element ) {
return element.requestFullscreen().catch(function (msg) {
$.console.error('Fullscreen request failed: ', msg);
});
};
fullScreenApi.exitFullScreen = function() {
document.exitFullscreen().catch(function (msg) {
$.console.error('Error while exiting fullscreen: ', msg);
});
};
fullScreenApi.fullScreenEventName = "fullscreenchange";
fullScreenApi.fullScreenErrorEventName = "fullscreenerror";
} else if ( document.msExitFullscreen ) {
// IE 11
fullScreenApi.supportsFullScreen = true;
fullScreenApi.getFullScreenElement = function() {
return document.msFullscreenElement;
};
fullScreenApi.requestFullScreen = function( element ) {
return element.msRequestFullscreen();
};
fullScreenApi.exitFullScreen = function() {
document.msExitFullscreen();
};
fullScreenApi.fullScreenEventName = "MSFullscreenChange";
fullScreenApi.fullScreenErrorEventName = "MSFullscreenError";
} else if ( document.webkitExitFullscreen ) {
// Recent webkit
fullScreenApi.supportsFullScreen = true;
fullScreenApi.getFullScreenElement = function() {
return document.webkitFullscreenElement;
};
fullScreenApi.requestFullScreen = function( element ) {
return element.webkitRequestFullscreen();
};
fullScreenApi.exitFullScreen = function() {
document.webkitExitFullscreen();
};
fullScreenApi.fullScreenEventName = "webkitfullscreenchange";
fullScreenApi.fullScreenErrorEventName = "webkitfullscreenerror";
} else if ( document.webkitCancelFullScreen ) {
// Old webkit
fullScreenApi.supportsFullScreen = true;
fullScreenApi.getFullScreenElement = function() {
return document.webkitCurrentFullScreenElement;
};
fullScreenApi.requestFullScreen = function( element ) {
return element.webkitRequestFullScreen();
};
fullScreenApi.exitFullScreen = function() {
document.webkitCancelFullScreen();
};
fullScreenApi.fullScreenEventName = "webkitfullscreenchange";
fullScreenApi.fullScreenErrorEventName = "webkitfullscreenerror";
} else if ( document.mozCancelFullScreen ) {
// Firefox
fullScreenApi.supportsFullScreen = true;
fullScreenApi.getFullScreenElement = function() {
return document.mozFullScreenElement;
};
fullScreenApi.requestFullScreen = function( element ) {
return element.mozRequestFullScreen();
};
fullScreenApi.exitFullScreen = function() {
document.mozCancelFullScreen();
};
fullScreenApi.fullScreenEventName = "mozfullscreenchange";
fullScreenApi.fullScreenErrorEventName = "mozfullscreenerror";
}
fullScreenApi.isFullScreen = function() {
return fullScreenApi.getFullScreenElement() !== null;
};
fullScreenApi.cancelFullScreen = function() {
$.console.error("cancelFullScreen is deprecated. Use exitFullScreen instead.");
fullScreenApi.exitFullScreen();
};
// export api
$.extend( $, fullScreenApi );
})( OpenSeadragon );