Manipulation: privatize buildFragment() function

Fixes gh-2224

6 files changed, 182 insertions, 0 deletions

diff --git a/src/manipulation/buildFragment.js b/src/manipulation/buildFragment.js
new file mode 100644
index 000000000..d5cb4062a
--- /dev/null
+++ b/src/manipulation/buildFragment.js
@@ -0,0 +1,101 @@
+define([
+	"../core",
+	"./var/rtagName",
+	"./var/rscriptType",
+	"./wrapMap",
+	"./getAll",
+	"./setGlobalEval"
+], function( jQuery, rtagName, rscriptType, wrapMap, getAll, setGlobalEval ) {
+
+var rhtml = /<|&#?\w+;/;
+
+function buildFragment( elems, context, scripts, selection, ignored ) {
+	var elem, tmp, tag, wrap, contains, j,
+		fragment = context.createDocumentFragment(),
+		nodes = [],
+		i = 0,
+		l = elems.length;
+
+	for ( ; i < l; i++ ) {
+		elem = elems[ i ];
+
+		if ( elem || elem === 0 ) {
+
+			// Add nodes directly
+			if ( jQuery.type( elem ) === "object" ) {
+				// Support: Android<4.1, PhantomJS<2
+				// push.apply(_, arraylike) throws on ancient WebKit
+				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
+
+			// Convert non-html into a text node
+			} else if ( !rhtml.test( elem ) ) {
+				nodes.push( context.createTextNode( elem ) );
+
+			// Convert html into DOM nodes
+			} else {
+				tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
+
+				// Deserialize a standard representation
+				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
+				wrap = wrapMap[ tag ] || wrapMap._default;
+				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
+
+				// Descend through wrappers to the right content
+				j = wrap[ 0 ];
+				while ( j-- ) {
+					tmp = tmp.lastChild;
+				}
+
+				// Support: Android<4.1, PhantomJS<2
+				// push.apply(_, arraylike) throws on ancient WebKit
+				jQuery.merge( nodes, tmp.childNodes );
+
+				// Remember the top-level container
+				tmp = fragment.firstChild;
+
+				// Ensure the created nodes are orphaned (#12392)
+				tmp.textContent = "";
+			}
+		}
+	}
+
+	// Remove wrapper from fragment
+	fragment.textContent = "";
+
+	i = 0;
+	while ( ( elem = nodes[ i++ ] ) ) {
+
+		// Skip elements already in the context collection (trac-4087)
+		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
+			if ( ignored ) {
+				ignored.push( elem );
+			}
+			continue;
+		}
+
+		contains = jQuery.contains( elem.ownerDocument, elem );
+
+		// Append to fragment
+		tmp = getAll( fragment.appendChild( elem ), "script" );
+
+		// Preserve script evaluation history
+		if ( contains ) {
+			setGlobalEval( tmp );
+		}
+
+		// Capture executables
+		if ( scripts ) {
+			j = 0;
+			while ( ( elem = tmp[ j++ ] ) ) {
+				if ( rscriptType.test( elem.type || "" ) ) {
+					scripts.push( elem );
+				}
+			}
+		}
+	}
+
+	return fragment;
+}
+
+return buildFragment;
+});
diff --git a/src/manipulation/getAll.js b/src/manipulation/getAll.js
new file mode 100644
index 000000000..d08470b48
--- /dev/null
+++ b/src/manipulation/getAll.js
@@ -0,0 +1,20 @@
+define([
+	"../core"
+], function( jQuery ) {
+
+function getAll( context, tag ) {
+	// Support: IE9-11+
+	// Use typeof to avoid zero-argument method invocation on host objects (#15151)
+	var ret = typeof context.getElementsByTagName !== "undefined" ?
+			context.getElementsByTagName( tag || "*" ) :
+			typeof context.querySelectorAll !== "undefined" ?
+				context.querySelectorAll( tag || "*" ) :
+			[];
+
+	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
+		jQuery.merge( [ context ], ret ) :
+		ret;
+}
+
+return getAll;
+});
diff --git a/src/manipulation/setGlobalEval.js b/src/manipulation/setGlobalEval.js
new file mode 100644
index 000000000..2eab9cf53
--- /dev/null
+++ b/src/manipulation/setGlobalEval.js
@@ -0,0 +1,20 @@
+define([
+	"../data/var/dataPriv"
+], function( dataPriv ) {
+
+// Mark scripts as having already been evaluated
+function setGlobalEval( elems, refElements ) {
+	var i = 0,
+		l = elems.length;
+
+	for ( ; i < l; i++ ) {
+		dataPriv.set(
+			elems[ i ],
+			"globalEval",
+			!refElements || dataPriv.get( refElements[ i ], "globalEval" )
+		);
+	}
+}
+
+return setGlobalEval;
+});
diff --git a/src/manipulation/var/rscriptType.js b/src/manipulation/var/rscriptType.js
new file mode 100644
index 000000000..60ef70ac8
--- /dev/null
+++ b/src/manipulation/var/rscriptType.js
@@ -0,0 +1,3 @@
+define(function() {
+	return ( /^$|\/(?:java|ecma)script/i );
+});
diff --git a/src/manipulation/var/rtagName.js b/src/manipulation/var/rtagName.js
new file mode 100644
index 000000000..cd0b768e0
--- /dev/null
+++ b/src/manipulation/var/rtagName.js
@@ -0,0 +1,3 @@
+define(function() {
+	return ( /<([\w:-]+)/ );
+});
diff --git a/src/manipulation/wrapMap.js b/src/manipulation/wrapMap.js
new file mode 100644
index 000000000..7080bf996
--- /dev/null
+++ b/src/manipulation/wrapMap.js
@@ -0,0 +1,35 @@
+define(function() {
+
+// We have to close these tags to support XHTML (#13200)
+var wrapMap = {
+
+	// Support: IE9
+	option: [ 1, "<select multiple='multiple'>", "</select>" ],
+
+	thead: [ 1, "<table>", "</table>" ],
+
+	// Some of the following wrappers are not fully defined, because
+	// their parent elements (except for "table" element) could be omitted
+	// since browser parsers are smart enough to auto-insert them
+
+	// Support: Android 2.3
+	// Android browser doesn't auto-insert colgroup
+	col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
+
+	// Auto-insert "tbody" element
+	tr: [ 2, "<table>", "</table>" ],
+
+	// Auto-insert "tbody" and "tr" elements
+	td: [ 3, "<table>", "</table>" ],
+
+	_default: [ 0, "", "" ]
+};
+
+// Support: IE9
+wrapMap.optgroup = wrapMap.option;
+
+wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
+wrapMap.th = wrapMap.td;
+
+return wrapMap;
+});