Merge pull request #2553 from openseadragon/ms-IE11

More dropped support for IE11

changelog.txt

@@ -3,7 +3,7 @@ OPENSEADRAGON CHANGELOG
 
 5.0.0: (in progress...)
 
-* BREAKING CHANGE: Dropped support for IE11 (#2300, #2361 @AndrewADev)
+* BREAKING CHANGE: Dropped support for IE11 (#2300, #2361, #2553 @AndrewADev, @msalsbery)
 * DEPRECATION: The OpenSeadragon.createCallback function is no longer recommended (#2367 @akansjain)
 * The viewer now uses WebGL when available (#2310, #2462, #2466, #2468, #2469, #2472, #2478, #2488, #2492, #2521, #2537 @pearcetm, @Aiosa, @thec0keman)
 * Added webp to supported image formats (#2455 @BeebBenjamin)

package-lock.json

@@ -668,9 +668,9 @@
             }
         },
         "node_modules/caniuse-lite": {
-            "version": "1.0.30001456",
+            "version": "1.0.30001636",
-            "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001456.tgz",
+            "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001636.tgz",
-            "integrity": "sha512-XFHJY5dUgmpMV25UqaD4kVq2LsiaU5rS8fb0f17pCoXQiQslzmFgnfOxfvo1bTpTqf7dwG/N/05CnLCnOEKmzA==",
+            "integrity": "sha512-bMg2vmr8XBsbL6Lr0UHXy/21m84FTxDLWn2FSqMd5PrlbMxwJlQnC2YWYxVgp66PZE+BBNF2jYQUBKCo1FDeZg==",
             "dev": true,
             "funding": [
                 {
@@ -680,8 +680,13 @@
                 {
                     "type": "tidelift",
                     "url": "https://tidelift.com/funding/github/npm/caniuse-lite"
+                },
+                {
+                    "type": "github",
+                    "url": "https://github.com/sponsors/ai"
                 }
-            ]
+            ],
+            "license": "CC-BY-4.0"
         },
         "node_modules/chalk": {
             "version": "2.4.2",

src/button.js

@@ -167,13 +167,6 @@ $.Button = function( options ) {
         this.imgDown.style.visibility  =
             "hidden";
 
-        if ($.Browser.vendor === $.BROWSERS.FIREFOX && $.Browser.version < 3) {
-            this.imgGroup.style.top =
-            this.imgHover.style.top =
-            this.imgDown.style.top  =
-                "";
-        }
-
         this.element.appendChild( this.imgRest );
         this.element.appendChild( this.imgGroup );
         this.element.appendChild( this.imgHover );

src/control.js

@@ -194,12 +194,8 @@ $.Control.prototype = {
      * @param {Number} opactiy - a value between 1 and 0 inclusively.
      */
     setOpacity: function( opacity ) {
-        if ( this.element[ $.SIGNAL ] && $.Browser.vendor === $.BROWSERS.IE ) {
-            $.setElementOpacity( this.element, opacity, true );
-        } else {
         $.setElementOpacity( this.wrapper, opacity, true );
     }
-    }
 };
 
 }( OpenSeadragon ));

src/mousetracker.js

@@ -1116,10 +1116,9 @@
     /**
      * Detect available mouse wheel event name.
      */
-    $.MouseTracker.wheelEventName = ( $.Browser.vendor === $.BROWSERS.IE && $.Browser.version > 8 ) ||
+    $.MouseTracker.wheelEventName = ( 'onwheel' in document.createElement( 'div' ) ) ? 'wheel' : // Modern browsers support 'wheel'
-                                                ( 'onwheel' in document.createElement( 'div' ) ) ? 'wheel' : // Modern browsers support 'wheel'
+                                    document.onmousewheel !== undefined ? 'mousewheel' :         // Webkit (and unsupported IE) support at least 'mousewheel'
-                                    document.onmousewheel !== undefined ? 'mousewheel' :                     // Webkit and IE support at least 'mousewheel'
+                                    'DOMMouseScroll';                                            // Assume old Firefox (deprecated)
-                                    'DOMMouseScroll';                                                        // Assume old Firefox
 
     /**
      * Detect browser pointer device event model(s) and build appropriate list of events to subscribe to.
@@ -1132,7 +1131,7 @@
     }
 
     if ( window.PointerEvent ) {
-        // IE11 and other W3C Pointer Event implementations (see http://www.w3.org/TR/pointerevents)
+        // W3C Pointer Event implementations (see http://www.w3.org/TR/pointerevents)
         $.MouseTracker.havePointerEvents = true;
         $.MouseTracker.subscribeEvents.push( "pointerenter", "pointerleave", "pointerover", "pointerout", "pointerdown", "pointerup", "pointermove", "pointercancel" );
         // Pointer events capture support
@@ -1671,7 +1670,6 @@
 
     /**
      * Gets a W3C Pointer Events model compatible pointer type string from a DOM pointer event.
-     * IE10 used a long integer value, but the W3C specification (and IE11+) use a string "mouse", "touch", "pen", etc.
      *
      * Note: Called for both pointer events and legacy mouse events
      *         ($.MouseTracker.havePointerEvents determines which)
@@ -1679,14 +1677,7 @@
      * @inner
      */
     function getPointerType( event ) {
-        if ( $.MouseTracker.havePointerEvents ) {
+        return $.MouseTracker.havePointerEvents && event.pointerType ? event.pointerType : 'mouse';
-            // Note: IE pointer events bug - sends invalid pointerType on lostpointercapture events
-            //    and possibly other events. We rely on sane, valid property values in DOM events, so for
-            //    IE, when the pointerType is missing, we'll default to 'mouse'...should be right most of the time
-            return event.pointerType || (( $.Browser.vendor === $.BROWSERS.IE ) ? 'mouse' : '');
-        } else {
-            return 'mouse';
-        }
     }
 
 
@@ -2554,15 +2545,14 @@
         };
 
         // Most browsers implicitly capture touch pointer events
-        // Note no IE versions have element.hasPointerCapture() so no implicit
+        // Note no IE versions (unsupported) have element.hasPointerCapture() so
-        //    pointer capture possible
+        //    no implicit pointer capture possible
         // var implicitlyCaptured = ($.MouseTracker.havePointerEvents &&
         //                         event.target.hasPointerCapture &&
         //                         $.Browser.vendor !== $.BROWSERS.IE) ?
         //                         event.target.hasPointerCapture(event.pointerId) : false;
         var implicitlyCaptured = $.MouseTracker.havePointerEvents &&
-                                gPoint.type === 'touch' &&
+                                gPoint.type === 'touch';
-                                $.Browser.vendor !== $.BROWSERS.IE;
 
         //$.console.log('pointerdown ' + (tracker.userData ? tracker.userData.toString() : '') + ' ' + (event.target === tracker.element ? 'tracker.element' : ''));
 

src/navigator.js

@@ -178,7 +178,6 @@ $.Navigator = function( options ){
         style['float']      = 'left'; //Webkit
 
         style.cssFloat      = 'left'; //Firefox
-        style.styleFloat    = 'left'; //IE
         style.zIndex        = 999999999;
         style.cursor        = 'default';
         style.boxSizing     = 'content-box';

src/openseadragon.js

@@ -2343,43 +2343,18 @@ function OpenSeadragon( options ){
         /**
          * Create an XHR object
          * @private
-         * @param {type} [local] If set to true, the XHR will be file: protocol
+         * @param {type} [local] Deprecated. Ignored (IE/ActiveXObject file protocol no longer supported).
-         * compatible if possible (but may raise a warning in the browser).
          * @returns {XMLHttpRequest}
          */
-        createAjaxRequest: function( local ) {
+        createAjaxRequest: function() {
-            // IE11 does not support window.ActiveXObject so we just try to
-            // create one to see if it is supported.
-            // See: http://msdn.microsoft.com/en-us/library/ie/dn423948%28v=vs.85%29.aspx
-            var supportActiveX;
-            try {
-                /* global ActiveXObject:true */
-                supportActiveX = !!new ActiveXObject( "Microsoft.XMLHTTP" );
-            } catch( e ) {
-                supportActiveX = false;
-            }
-
-            if ( supportActiveX ) {
             if ( window.XMLHttpRequest ) {
-                    $.createAjaxRequest = function( local ) {
-                        if ( local ) {
-                            return new ActiveXObject( "Microsoft.XMLHTTP" );
-                        }
-                        return new XMLHttpRequest();
-                    };
-                } else {
-                    $.createAjaxRequest = function() {
-                        return new ActiveXObject( "Microsoft.XMLHTTP" );
-                    };
-                }
-            } else if ( window.XMLHttpRequest ) {
                 $.createAjaxRequest = function() {
                     return new XMLHttpRequest();
                 };
+                return new XMLHttpRequest();
             } else {
                 throw new Error( "Browser doesn't support XMLHttpRequest." );
             }
-            return $.createAjaxRequest( local );
         },
 
         /**
@@ -2415,7 +2390,7 @@ function OpenSeadragon( options ){
             }
 
             var protocol = $.getUrlProtocol( url );
-            var request = $.createAjaxRequest( protocol === "file:" );
+            var request = $.createAjaxRequest();
 
             if ( !$.isFunction( onSuccess ) ) {
                 throw new Error( "makeAjaxRequest requires a success callback" );
@@ -2584,17 +2559,6 @@ function OpenSeadragon( options ){
                     return xmlDoc;
                 };
 
-            } else if ( window.ActiveXObject ) {
-
-                $.parseXml = function( string ) {
-                    var xmlDoc = null;
-
-                    xmlDoc = new ActiveXObject( "Microsoft.XMLDOM" );
-                    xmlDoc.async = false;
-                    xmlDoc.loadXML( string );
-                    return xmlDoc;
-                };
-
             } else {
                 throw new Error( "Browser doesn't support XML DOM." );
             }
@@ -2721,6 +2685,10 @@ function OpenSeadragon( options ){
         //console.error( 'appVersion: ' + navigator.appVersion );
         //console.error( 'userAgent: ' + navigator.userAgent );
 
+        //TODO navigator.appName is deprecated. Should be 'Netscape' for all browsers
+        //  but could be dropped at any time
+        //  See https://developer.mozilla.org/en-US/docs/Web/API/Navigator/appName
+        //      https://developer.mozilla.org/en-US/docs/Web/HTTP/Browser_detection_using_the_user_agent
         switch( navigator.appName ){
             case "Microsoft Internet Explorer":
                 if( !!window.attachEvent &&
@@ -2806,8 +2774,8 @@ function OpenSeadragon( options ){
         //determine if this browser supports element.style.opacity
         $.Browser.opacity = true;
 
-        if ( $.Browser.vendor === $.BROWSERS.IE && $.Browser.version < 11 ) {
+        if ( $.Browser.vendor === $.BROWSERS.IE ) {
-            $.console.error('Internet Explorer versions < 11 are not supported by OpenSeadragon');
+            $.console.error('Internet Explorer is not supported by OpenSeadragon');
         }
     })();
 

src/referencestrip.js

@@ -193,7 +193,6 @@ $.ReferenceStrip = function ( options ) {
         element.style.display       = 'inline';
         element.style['float']      = 'left'; //Webkit
         element.style.cssFloat      = 'left'; //Firefox
-        element.style.styleFloat    = 'left'; //IE
         element.style.padding       = '2px';
         $.setElementTouchActionNone( element );
         $.setElementPointerEventsNone( element );

test/helpers/legacy.mouse.shim.js

@@ -1,4 +1,4 @@
-(function($, undefined) {
+(function($) {
 
     /**
      * Plugin to force OpenSeadragon to use the legacy mouse pointer event model