fixedToolbars: Created extension for browser specific workaround

css/structure/jquery.mobile.fixedToolbar.css

@@ -49,3 +49,6 @@
 .ui-footer-fixed .ui-btn { 
 	z-index: 10;
 }
+.ui-android-2x-fixed .ui-li-has-thumb {
+	-webkit-transform: translate3d(0,0,0);
+}

js/index.php

@@ -53,6 +53,7 @@
 	'widgets/controlgroup.js',
 	'jquery.mobile.links.js',
 	'widgets/fixedToolbar.js',
+	'widgets/fixedToolbar.workarounds.js',
 	'widgets/popup.js',
 	'jquery.mobile.zoom.js',
 	'jquery.mobile.zoom.iosorientationfix.js',

js/widgets/fixedToolbar.js

@@ -253,7 +253,12 @@ define( [ "jquery", "../jquery.mobile.widget", "../jquery.mobile.core", "../jque
 					}
 				})
 				.bind( "focusin focusout", function( e ) {
-					if ( screen.width < 500 && $( e.target ).is( o.hideDuringFocus ) && !$( e.target ).closest( ".ui-header-fixed, .ui-footer-fixed" ).length ) {
+					//this hides the toolbars on a keyboard pop to give more screen room and prevent ios bug which 
+					//positions fixed toolbars in the middle of the screen on pop if the input is near the top or
+					//bottom of the screen addresses issues #4410 Footer navbar moves up when clicking on a textbox in an Android environment
+					//and issue #4113 Header and footer change their position after keyboard popup - iOS
+					//and issue #4410 Footer navbar moves up when clicking on a textbox in an Android environment
+					if ( screen.width < 1025 && $( e.target ).is( o.hideDuringFocus ) && !$( e.target ).closest( ".ui-header-fixed, .ui-footer-fixed" ).length ) {
 						self[ ( e.type === "focusin" && self._visible ) ? "hide" : "show" ]();
 					}
 				});

js/widgets/fixedToolbar.workarounds.js

@@ -0,0 +1,104 @@
+//>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude);
+//>>description: Browser specific workarounds for "fixed" headers and footers
+//>>label: Toolbars: Fixed: Workarounds
+//>>group: Widgets
+//>>css.structure: ../css/structure/jquery.mobile.fixedToolbar.css
+define( [ "jquery", "../jquery.mobile.widget", "../jquery.mobile.core", "../jquery.mobile.navigation", "./page", "./page.sections", "../jquery.mobile.zoom", "./fixedToolbar" ], function( $ ) {
+//>>excludeEnd("jqmBuildExclude");
+(function( $, undefined ) {
+	$.widget( "mobile.fixedtoolbar", $.mobile.fixedtoolbar, {
+
+			_create: function() {
+				this._super();
+				this._workarounds();
+			},
+
+			//check the browser and version and run needed workarounds
+			_workarounds: function() {
+				var ua = navigator.userAgent,
+				platform = navigator.platform,
+				// Rendering engine is Webkit, and capture major version
+				wkmatch = ua.match( /AppleWebKit\/([0-9]+)/ ),
+				wkversion = !!wkmatch && wkmatch[ 1 ],
+				os = null,
+				self = this;
+				//set the os we are working in if it dosent match one with workarounds return
+				if( platform.indexOf( "iPhone" ) > -1 || platform.indexOf( "iPad" ) > -1  || platform.indexOf( "iPod" ) > -1 ){
+					os = "ios";
+				} else if( ua.indexOf( "Android" ) > -1 ){
+					os = "android";
+				} else {
+					return
+				}
+				//check os version if it dosent match one with workarounds return
+				if( os === "ios" && wkversion && wkversion > 533 && wkversion < 536 ) {
+					//iOS 5 run all workarounds for iOS 5
+					self._bindScrollWorkaround();
+				} else if( os === "android" && wkversion && wkversion < 534 ) {
+					//Android 2.3 run all Android 2.3 workaround
+					self._bindScrollWorkaround();
+					self._bindListThumbWorkaround();
+				} else {
+					return
+				}
+			},
+
+			//Utility class for checking header and footer positions relative to viewport
+			_viewportOffset: function() {
+				var $el = this.element,
+					header = $el.is( ".ui-header" ),
+					offset = Math.abs($el.offset().top - $( window ).scrollTop());
+				if( !header ) {
+					offset = Math.round(offset - $( window ).height() + $el.outerHeight())-60;
+				}
+				return offset;
+			},
+
+			//bind events for _triggerRedraw() function 
+			_bindScrollWorkaround: function() {
+				var self = this;
+				//bind to scrollstop and check if the toolbars are correctly positioned
+				this._on( $( window ), { scrollstop: function() {
+					var viewportOffset = self._viewportOffset();
+					//check if the header is visible and if its in the right place
+					if( viewportOffset > 2 && self._visible) {
+						self._triggerRedraw();
+					}
+				}});
+			},
+
+			//this addresses issue #4250 Persistent footer instability in v1.1 with long select lists in Android 2.3.3
+			//and issue #3748 Android 2.x: Page transitions broken when fixed toolbars used
+			//the absolutely positioned thumbnail in a list view causes problems with fixed position buttons above in a nav bar
+			//setting the li's to -webkit-transform:translate3d(0,0,0); solves this problem to avoide potential issues in other
+			//platforms we scope this with the class ui-android-2x-fix
+			_bindListThumbWorkaround: function() {
+				this.element.closest(".ui-page").addClass( "ui-android-2x-fixed" );
+			},
+			//this addresses issues #4337 Fixed header problem after scrolling content on iOS and Android
+			//and device bugs project issue #1 Form elements can lose click hit area in position: fixed containers.
+			//this also addresses not on fixed toolbars page in docs
+			//adding 1px of padding to the bottom then removing it causes a "redraw"
+			//which positions the toolbars correctly (they will always be visually correct) 
+			_triggerRedraw: function() {
+				var paddingBottom = parseFloat( $( ".ui-page-active" ).css( "padding-bottom" ) );
+				//trigger page redraw to fix incorrectly positioned fixed elements
+				$( ".ui-page-active" ).css( "padding-bottom", ( paddingBottom + 1 ) +"px" );
+				//if the padding is reset with out a timeout the reposition will not occure.
+				//this is independant of JQM the browser seems to need the time to react.
+				setTimeout( function() {
+					$( ".ui-page-active" ).css( "padding-bottom", paddingBottom + "px" );
+				}, 0 );
+			},
+
+			destroy: function() {
+				this._super();
+				//Remove the class we added to the page previously in android 2.x 
+				this.element.closest(".ui-page-active").removeClass( "ui-android-2x-fix" );
+			}
+	});
+
+	})( jQuery );
+//>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude);
+});
+//>>excludeEnd("jqmBuildExclude");