From ce1ace63474287dd6c9368d3fadf9c898a2bf4f6 Mon Sep 17 00:00:00 2001
From: Andrew Nacin <wp@andrewnacin.com>
Date: Thu, 27 Mar 2014 06:30:14 +0000
Subject: [PATCH] Fix flyout menus on most mobile devices.

props ocean90.
fixes #26482.

Built from https://develop.svn.wordpress.org/trunk@27775


git-svn-id: http://core.svn.wordpress.org/trunk@27612 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/js/common.js     | 43 +++++++++++++++++++++++++++++++++------
 wp-admin/js/common.min.js |  2 +-
 2 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/wp-admin/js/common.js b/wp-admin/js/common.js
index c6c6466fe1..510f2952fc 100644
--- a/wp-admin/js/common.js
+++ b/wp-admin/js/common.js
@@ -228,7 +228,10 @@ $(document).ready( function() {
 		});
 
 		menu.find('a.wp-has-submenu').on( mobileEvent+'.wp-mobile-hover', function(e) {
-			var el = $(this), parent = el.parent();
+			var b, h, o, f, menutop, wintop, maxtop,
+				el = $(this),
+				parent = el.parent(),
+				m = parent.find('.wp-submenu');
 
 			if ( menu.data('wp-responsive') ) {
 				return;
@@ -239,6 +242,30 @@ $(document).ready( function() {
 			//	- the submenu is not shown inline or the menu is not folded
 			if ( !parent.hasClass('opensub') && ( !parent.hasClass('wp-menu-open') || parent.width() < 40 ) ) {
 				e.preventDefault();
+
+				menutop = parent.offset().top;
+				wintop = $(window).scrollTop();
+				maxtop = menutop - wintop - 30; // max = make the top of the sub almost touch admin bar
+
+				b = menutop + m.height() + 1; // Bottom offset of the menu
+				h = $('#wpwrap').height(); // Height of the entire page
+				o = 60 + b - h;
+				f = $(window).height() + wintop - 50; // The fold
+
+				if ( f < (b - o) ) {
+					o = b - f;
+				}
+
+				if ( o > maxtop ) {
+					o = maxtop;
+				}
+
+				if ( o > 1 ) {
+					m.css('margin-top', '-'+o+'px');
+				} else {
+					m.css('margin-top', '');
+				}
+
 				menu.find('li.opensub').removeClass('opensub');
 				parent.addClass('opensub');
 			}
@@ -249,8 +276,9 @@ $(document).ready( function() {
 		over: function() {
 			var b, h, o, f, m = $(this).find('.wp-submenu'), menutop, wintop, maxtop, top = parseInt( m.css('top'), 10 );
 
-			if ( isNaN(top) || top > -5 ) // meaning the submenu is visible
+			if ( isNaN(top) || top > -5 ) { // meaning the submenu is visible
 				return;
+			}
 
 			if ( menu.data('wp-responsive') ) {
 				// The menu is in responsive mode, bail
@@ -266,16 +294,19 @@ $(document).ready( function() {
 			o = 60 + b - h;
 			f = $(window).height() + wintop - 15; // The fold
 
-			if ( f < (b - o) )
+			if ( f < (b - o) ) {
 				o = b - f;
+			}
 
-			if ( o > maxtop )
+			if ( o > maxtop ) {
 				o = maxtop;
+			}
 
-			if ( o > 1 )
+			if ( o > 1 ) {
 				m.css('margin-top', '-'+o+'px');
-			else
+			} else {
 				m.css('margin-top', '');
+			}
 
 			menu.find('li.menu-top').removeClass('opensub');
 			$(this).addClass('opensub');
diff --git a/wp-admin/js/common.min.js b/wp-admin/js/common.min.js
index 43d30a9294..7f43a02348 100644
--- a/wp-admin/js/common.min.js
+++ b/wp-admin/js/common.min.js
@@ -1 +1 @@
-var showNotice,adminMenu,columns,validateForm,screenMeta;!function(a,b){adminMenu={init:function(){},fold:function(){},restoreMenuState:function(){},toggle:function(){},favorites:function(){}},columns={init:function(){var b=this;a(".hide-column-tog","#adv-settings").click(function(){var c=a(this),d=c.val();c.prop("checked")?b.checked(d):b.unchecked(d),columns.saveManageColumnsState()})},saveManageColumnsState:function(){var b=this.hidden();a.post(ajaxurl,{action:"hidden-columns",hidden:b,screenoptionnonce:a("#screenoptionnonce").val(),page:pagenow})},checked:function(b){a(".column-"+b).show(),this.colSpanChange(1)},unchecked:function(b){a(".column-"+b).hide(),this.colSpanChange(-1)},hidden:function(){return a(".manage-column").filter(":hidden").map(function(){return this.id}).get().join(",")},useCheckboxesForHidden:function(){this.hidden=function(){return a(".hide-column-tog").not(":checked").map(function(){var a=this.id;return a.substring(a,a.length-5)}).get().join(",")}},colSpanChange:function(b){var c,d=a("table").find(".colspanchange");d.length&&(c=parseInt(d.attr("colspan"),10)+b,d.attr("colspan",c.toString()))}},a(document).ready(function(){columns.init()}),validateForm=function(b){return!a(b).find(".form-required").filter(function(){return""===a("input:visible",this).val()}).addClass("form-invalid").find("input:visible").change(function(){a(this).closest(".form-invalid").removeClass("form-invalid")}).size()},showNotice={warn:function(){var a=commonL10n.warnDelete||"";return confirm(a)?!0:!1},note:function(a){alert(a)}},screenMeta={element:null,toggles:null,page:null,init:function(){this.element=a("#screen-meta"),this.toggles=a(".screen-meta-toggle a"),this.page=a("#wpcontent"),this.toggles.click(this.toggleEvent)},toggleEvent:function(b){var c=a(this.href.replace(/.+#/,"#"));b.preventDefault(),c.length&&(c.is(":visible")?screenMeta.close(c,a(this)):screenMeta.open(c,a(this)))},open:function(b,c){a(".screen-meta-toggle").not(c.parent()).css("visibility","hidden"),b.parent().show(),b.slideDown("fast",function(){b.focus(),c.addClass("screen-meta-active").attr("aria-expanded",!0)})},close:function(b,c){b.slideUp("fast",function(){c.removeClass("screen-meta-active").attr("aria-expanded",!1),a(".screen-meta-toggle").css("visibility",""),b.parent().hide()})}},a(".contextual-help-tabs").delegate("a","click focus",function(b){var c,d=a(this);return b.preventDefault(),d.is(".active a")?!1:(a(".contextual-help-tabs .active").removeClass("active"),d.parent("li").addClass("active"),c=a(d.attr("href")),a(".help-tab-content").not(c).removeClass("active").hide(),void c.addClass("active").show())}),a(document).ready(function(){var c,d,e,f,g,h,i,j,k=!1,l=a("#adminmenu"),m=a("input.current-page"),n=m.val();l.on("click.wp-submenu-head",".wp-submenu-head",function(b){a(b.target).parent().siblings("a").get(0).click()}),a("#collapse-menu").on("click.collapse-menu",function(){var c,d=a(document.body);a("#adminmenu div.wp-submenu").css("margin-top",""),c=b.innerWidth?Math.max(b.innerWidth,document.documentElement.clientWidth):901,c&&900>c?d.hasClass("auto-fold")?(d.removeClass("auto-fold").removeClass("folded"),setUserSetting("unfold",1),setUserSetting("mfold","o")):(d.addClass("auto-fold"),setUserSetting("unfold",0)):d.hasClass("folded")?(d.removeClass("folded"),setUserSetting("mfold","o")):(d.addClass("folded"),setUserSetting("mfold","f"))}),("ontouchstart"in b||/IEMobile\/[1-9]/.test(navigator.userAgent))&&(h=/Mobile\/.+Safari/.test(navigator.userAgent)?"touchstart":"click",a(document.body).on(h+".wp-mobile-hover",function(b){l.data("wp-responsive")||a(b.target).closest("#adminmenu").length||l.find("li.wp-has-submenu.opensub").removeClass("opensub")}),l.find("a.wp-has-submenu").on(h+".wp-mobile-hover",function(b){var c=a(this),d=c.parent();l.data("wp-responsive")||d.hasClass("opensub")||d.hasClass("wp-menu-open")&&!(d.width()<40)||(b.preventDefault(),l.find("li.opensub").removeClass("opensub"),d.addClass("opensub"))})),l.find("li.wp-has-submenu").hoverIntent({over:function(){var c,d,e,f,g,h,i,j=a(this).find(".wp-submenu"),k=parseInt(j.css("top"),10);isNaN(k)||k>-5||l.data("wp-responsive")||(g=a(this).offset().top,h=a(b).scrollTop(),i=g-h-30,c=g+j.height()+1,d=a("#wpwrap").height(),e=60+c-d,f=a(b).height()+h-15,c-e>f&&(e=c-f),e>i&&(e=i),e>1?j.css("margin-top","-"+e+"px"):j.css("margin-top",""),l.find("li.menu-top").removeClass("opensub"),a(this).addClass("opensub"))},out:function(){l.data("wp-responsive")||a(this).removeClass("opensub").find(".wp-submenu").css("margin-top","")},timeout:200,sensitivity:7,interval:90}),l.on("focus.adminmenu",".wp-submenu a",function(b){l.data("wp-responsive")||a(b.target).closest("li.menu-top").addClass("opensub")}).on("blur.adminmenu",".wp-submenu a",function(b){l.data("wp-responsive")||a(b.target).closest("li.menu-top").removeClass("opensub")}),a("div.wrap h2:first").nextAll("div.updated, div.error").addClass("below-h2"),a("div.updated, div.error").not(".below-h2, .inline").insertAfter(a("div.wrap h2:first")),screenMeta.init(),a("tbody").children().children(".check-column").find(":checkbox").click(function(b){if("undefined"==b.shiftKey)return!0;if(b.shiftKey){if(!k)return!0;c=a(k).closest("form").find(":checkbox"),d=c.index(k),e=c.index(this),f=a(this).prop("checked"),d>0&&e>0&&d!=e&&(g=e>d?c.slice(d,e):c.slice(e,d),g.prop("checked",function(){return a(this).closest("tr").is(":visible")?f:!1}))}k=this;var h=a(this).closest("tbody").find(":checkbox").filter(":visible").not(":checked");return a(this).closest("table").children("thead, tfoot").find(":checkbox").prop("checked",function(){return 0===h.length}),!0}),a("thead, tfoot").find(".check-column :checkbox").on("click.wp-toggle-checkboxes",function(b){var c=a(this),d=c.closest("table"),e=c.prop("checked"),f=b.shiftKey||c.data("wp-toggle");d.children("tbody").filter(":visible").children().children(".check-column").find(":checkbox").prop("checked",function(){return a(this).is(":hidden")?!1:f?!a(this).prop("checked"):e?!0:!1}),d.children("thead,  tfoot").filter(":visible").children().children(".check-column").find(":checkbox").prop("checked",function(){return f?!1:e?!0:!1})}),a("td.post-title, td.title, td.comment, .bookmarks td.column-name, td.blogname, td.username, .dashboard-comment-wrap").focusin(function(){clearTimeout(i),j=a(this).find(".row-actions"),j.addClass("visible")}).focusout(function(){i=setTimeout(function(){j.removeClass("visible")},30)}),a("#default-password-nag-no").click(function(){return setUserSetting("default_password_nag","hide"),a("div.default-password-nag").hide(),!1}),a("#newcontent").bind("keydown.wpevent_InsertTab",function(b){var c,d,e,f,g,h=b.target;if(27==b.keyCode)return void a(h).data("tab-out",!0);if(!(9!=b.keyCode||b.ctrlKey||b.altKey||b.shiftKey)){if(a(h).data("tab-out"))return void a(h).data("tab-out",!1);c=h.selectionStart,d=h.selectionEnd,e=h.value;try{this.lastKey=9}catch(i){}document.selection?(h.focus(),g=document.selection.createRange(),g.text="	"):c>=0&&(f=this.scrollTop,h.value=e.substring(0,c).concat("	",e.substring(d)),h.selectionStart=h.selectionEnd=c+1,this.scrollTop=f),b.stopPropagation&&b.stopPropagation(),b.preventDefault&&b.preventDefault()}}),a("#newcontent").bind("blur.wpevent_InsertTab",function(){this.lastKey&&9==this.lastKey&&this.focus()}),m.length&&m.closest("form").submit(function(){-1==a('select[name="action"]').val()&&-1==a('select[name="action2"]').val()&&m.val()==n&&m.val("1")}),a('.search-box input[type="search"], .search-box input[type="submit"]').mousedown(function(){a('select[name^="action"]').val("-1")}),a("#contextual-help-link, #show-settings-link").on("focus.scroll-into-view",function(a){a.target.scrollIntoView&&a.target.scrollIntoView(!1)}),function(){function b(){c.prop("disabled",""===d.map(function(){return a(this).val()}).get().join(""))}var c,d,e=a("form.wp-upload-form");e.length&&(c=e.find('input[type="submit"]'),d=e.find('input[type="file"]'),b(),d.on("change",b))}()}),function(){function c(){a(document).trigger("wp-window-resized")}function d(){b.clearTimeout(e),e=b.setTimeout(c,200)}var e;a(b).on("resize.wp-fire-once",d)}(),a(document).ready(function(){var c=a(document),d=a(b),e=a(document.body),f=a("#adminmenuwrap"),g=a("#collapse-menu"),h=a("#wpwrap"),i=a("#adminmenu"),j=a("#wp-responsive-overlay"),k=a("#wp-toolbar"),l=k.find('a[aria-haspopup="true"]'),m=a(".meta-box-sortables"),n=!1,o=!1;b.stickyMenu={enable:function(){n||(c.on("wp-window-resized.sticky-menu",a.proxy(this.update,this)),g.on("click.sticky-menu",a.proxy(this.update,this)),this.update(),n=!0)},disable:function(){n&&(d.off("resize.sticky-menu"),g.off("click.sticky-menu"),e.removeClass("sticky-menu"),n=!1)},update:function(){d.height()>f.height()+32?e.hasClass("sticky-menu")||e.addClass("sticky-menu"):e.hasClass("sticky-menu")&&e.removeClass("sticky-menu")}},b.wpResponsive={init:function(){var e=this,f=0;c.on("wp-responsive-activate.wp-responsive",function(){e.activate()}).on("wp-responsive-deactivate.wp-responsive",function(){e.deactivate()}),a("#wp-admin-bar-menu-toggle 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a=navigator.userAgent.indexOf("AppleWebKit/")>-1?d.width():b.innerWidth;782>=a&&e.disableSortables()})},activate:function(){b.stickyMenu.disable(),e.hasClass("auto-fold")||e.addClass("auto-fold"),i.data("wp-responsive",1),this.disableSortables()},deactivate:function(){b.stickyMenu.enable(),i.removeData("wp-responsive"),this.enableSortables()},trigger:function(){var a;b.innerWidth&&(a=Math.max(b.innerWidth,document.documentElement.clientWidth),782>=a?o||(c.trigger("wp-responsive-activate"),o=!0):o&&(c.trigger("wp-responsive-deactivate"),o=!1),480>=a?this.enableOverlay():this.disableOverlay())},enableOverlay:function(){0===j.length&&(j=a('<div id="wp-responsive-overlay"></div>').insertAfter("#wpcontent").hide().on("click.wp-responsive",function(){k.find(".menupop.hover").removeClass("hover"),a(this).hide()})),l.on("click.wp-responsive",function(){j.show()})},disableOverlay:function(){l.off("click.wp-responsive"),j.hide()},disableSortables:function(){if(m.length)try{m.sortable("disable")}catch(a){}},enableSortables:function(){if(m.length)try{m.sortable("enable")}catch(a){}}},b.stickyMenu.enable(),b.wpResponsive.init()}),function(){if("-ms-user-select"in document.documentElement.style&&navigator.userAgent.match(/IEMobile\/10\.0/)){var a=document.createElement("style");a.appendChild(document.createTextNode("@-ms-viewport{width:auto!important}")),document.getElementsByTagName("head")[0].appendChild(a)}}()}(jQuery,window);
\ No newline at end of file
+var showNotice,adminMenu,columns,validateForm,screenMeta;!function(a,b){adminMenu={init:function(){},fold:function(){},restoreMenuState:function(){},toggle:function(){},favorites:function(){}},columns={init:function(){var b=this;a(".hide-column-tog","#adv-settings").click(function(){var c=a(this),d=c.val();c.prop("checked")?b.checked(d):b.unchecked(d),columns.saveManageColumnsState()})},saveManageColumnsState:function(){var b=this.hidden();a.post(ajaxurl,{action:"hidden-columns",hidden:b,screenoptionnonce:a("#screenoptionnonce").val(),page:pagenow})},checked:function(b){a(".column-"+b).show(),this.colSpanChange(1)},unchecked:function(b){a(".column-"+b).hide(),this.colSpanChange(-1)},hidden:function(){return a(".manage-column").filter(":hidden").map(function(){return this.id}).get().join(",")},useCheckboxesForHidden:function(){this.hidden=function(){return a(".hide-column-tog").not(":checked").map(function(){var a=this.id;return 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b||/IEMobile\/[1-9]/.test(navigator.userAgent))&&(h=/Mobile\/.+Safari/.test(navigator.userAgent)?"touchstart":"click",a(document.body).on(h+".wp-mobile-hover",function(b){l.data("wp-responsive")||a(b.target).closest("#adminmenu").length||l.find("li.wp-has-submenu.opensub").removeClass("opensub")}),l.find("a.wp-has-submenu").on(h+".wp-mobile-hover",function(c){var d,e,f,g,h,i,j,k=a(this),m=k.parent(),n=m.find(".wp-submenu");l.data("wp-responsive")||m.hasClass("opensub")||m.hasClass("wp-menu-open")&&!(m.width()<40)||(c.preventDefault(),h=m.offset().top,i=a(b).scrollTop(),j=h-i-30,d=h+n.height()+1,e=a("#wpwrap").height(),f=60+d-e,g=a(b).height()+i-50,d-f>g&&(f=d-g),f>j&&(f=j),f>1?n.css("margin-top","-"+f+"px"):n.css("margin-top",""),l.find("li.opensub").removeClass("opensub"),m.addClass("opensub"))})),l.find("li.wp-has-submenu").hoverIntent({over:function(){var 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