Resources/Web/js/jquery.tmpl.js
author sl
Thu, 01 Jan 2015 23:35:49 +0100
changeset 405 5715aefd2bcc
permissions -rw-r--r--
SharpDisplay: Migrating to new robust client scheme.
     1 /*!
     2  * jQuery Templates Plugin 1.0.0pre
     3  * http://github.com/jquery/jquery-tmpl
     4  * Requires jQuery 1.4.2
     5  *
     6  * Copyright 2011, Software Freedom Conservancy, Inc.
     7  * Dual licensed under the MIT or GPL Version 2 licenses.
     8  * http://jquery.org/license
     9  */
    10 (function( jQuery, undefined ){
    11 	var oldManip = jQuery.fn.domManip, tmplItmAtt = "_tmplitem", htmlExpr = /^[^<]*(<[\w\W]+>)[^>]*$|\{\{\! /,
    12 		newTmplItems = {}, wrappedItems = {}, appendToTmplItems, topTmplItem = { key: 0, data: {} }, itemKey = 0, cloneIndex = 0, stack = [];
    13 
    14 	function newTmplItem( options, parentItem, fn, data ) {
    15 		// Returns a template item data structure for a new rendered instance of a template (a 'template item').
    16 		// The content field is a hierarchical array of strings and nested items (to be
    17 		// removed and replaced by nodes field of dom elements, once inserted in DOM).
    18 		var newItem = {
    19 			data: data || (data === 0 || data === false) ? data : (parentItem ? parentItem.data : {}),
    20 			_wrap: parentItem ? parentItem._wrap : null,
    21 			tmpl: null,
    22 			parent: parentItem || null,
    23 			nodes: [],
    24 			calls: tiCalls,
    25 			nest: tiNest,
    26 			wrap: tiWrap,
    27 			html: tiHtml,
    28 			update: tiUpdate
    29 		};
    30 		if ( options ) {
    31 			jQuery.extend( newItem, options, { nodes: [], parent: parentItem });
    32 		}
    33 		if ( fn ) {
    34 			// Build the hierarchical content to be used during insertion into DOM
    35 			newItem.tmpl = fn;
    36 			newItem._ctnt = newItem._ctnt || newItem.tmpl( jQuery, newItem );
    37 			newItem.key = ++itemKey;
    38 			// Keep track of new template item, until it is stored as jQuery Data on DOM element
    39 			(stack.length ? wrappedItems : newTmplItems)[itemKey] = newItem;
    40 		}
    41 		return newItem;
    42 	}
    43 
    44 	// Override appendTo etc., in order to provide support for targeting multiple elements. (This code would disappear if integrated in jquery core).
    45 	jQuery.each({
    46 		appendTo: "append",
    47 		prependTo: "prepend",
    48 		insertBefore: "before",
    49 		insertAfter: "after",
    50 		replaceAll: "replaceWith"
    51 	}, function( name, original ) {
    52 		jQuery.fn[ name ] = function( selector ) {
    53 			var ret = [], insert = jQuery( selector ), elems, i, l, tmplItems,
    54 				parent = this.length === 1 && this[0].parentNode;
    55 
    56 			appendToTmplItems = newTmplItems || {};
    57 			if ( parent && parent.nodeType === 11 && parent.childNodes.length === 1 && insert.length === 1 ) {
    58 				insert[ original ]( this[0] );
    59 				ret = this;
    60 			} else {
    61 				for ( i = 0, l = insert.length; i < l; i++ ) {
    62 					cloneIndex = i;
    63 					elems = (i > 0 ? this.clone(true) : this).get();
    64 					jQuery( insert[i] )[ original ]( elems );
    65 					ret = ret.concat( elems );
    66 				}
    67 				cloneIndex = 0;
    68 				ret = this.pushStack( ret, name, insert.selector );
    69 			}
    70 			tmplItems = appendToTmplItems;
    71 			appendToTmplItems = null;
    72 			jQuery.tmpl.complete( tmplItems );
    73 			return ret;
    74 		};
    75 	});
    76 
    77 	jQuery.fn.extend({
    78 		// Use first wrapped element as template markup.
    79 		// Return wrapped set of template items, obtained by rendering template against data.
    80 		tmpl: function( data, options, parentItem ) {
    81 			return jQuery.tmpl( this[0], data, options, parentItem );
    82 		},
    83 
    84 		// Find which rendered template item the first wrapped DOM element belongs to
    85 		tmplItem: function() {
    86 			return jQuery.tmplItem( this[0] );
    87 		},
    88 
    89 		// Consider the first wrapped element as a template declaration, and get the compiled template or store it as a named template.
    90 		template: function( name ) {
    91 			return jQuery.template( name, this[0] );
    92 		},
    93 
    94 		domManip: function( args, table, callback, options ) {
    95 			if ( args[0] && jQuery.isArray( args[0] )) {
    96 				var dmArgs = jQuery.makeArray( arguments ), elems = args[0], elemsLength = elems.length, i = 0, tmplItem;
    97 				while ( i < elemsLength && !(tmplItem = jQuery.data( elems[i++], "tmplItem" ))) {}
    98 				if ( tmplItem && cloneIndex ) {
    99 					dmArgs[2] = function( fragClone ) {
   100 						// Handler called by oldManip when rendered template has been inserted into DOM.
   101 						jQuery.tmpl.afterManip( this, fragClone, callback );
   102 					};
   103 				}
   104 				oldManip.apply( this, dmArgs );
   105 			} else {
   106 				oldManip.apply( this, arguments );
   107 			}
   108 			cloneIndex = 0;
   109 			if ( !appendToTmplItems ) {
   110 				jQuery.tmpl.complete( newTmplItems );
   111 			}
   112 			return this;
   113 		}
   114 	});
   115 
   116 	jQuery.extend({
   117 		// Return wrapped set of template items, obtained by rendering template against data.
   118 		tmpl: function( tmpl, data, options, parentItem ) {
   119 			var ret, topLevel = !parentItem;
   120 			if ( topLevel ) {
   121 				// This is a top-level tmpl call (not from a nested template using {{tmpl}})
   122 				parentItem = topTmplItem;
   123 				tmpl = jQuery.template[tmpl] || jQuery.template( null, tmpl );
   124 				wrappedItems = {}; // Any wrapped items will be rebuilt, since this is top level
   125 			} else if ( !tmpl ) {
   126 				// The template item is already associated with DOM - this is a refresh.
   127 				// Re-evaluate rendered template for the parentItem
   128 				tmpl = parentItem.tmpl;
   129 				newTmplItems[parentItem.key] = parentItem;
   130 				parentItem.nodes = [];
   131 				if ( parentItem.wrapped ) {
   132 					updateWrapped( parentItem, parentItem.wrapped );
   133 				}
   134 				// Rebuild, without creating a new template item
   135 				return jQuery( build( parentItem, null, parentItem.tmpl( jQuery, parentItem ) ));
   136 			}
   137 			if ( !tmpl ) {
   138 				return []; // Could throw...
   139 			}
   140 			if ( typeof data === "function" ) {
   141 				data = data.call( parentItem || {} );
   142 			}
   143 			if ( options && options.wrapped ) {
   144 				updateWrapped( options, options.wrapped );
   145 			}
   146 			ret = jQuery.isArray( data ) ?
   147 				jQuery.map( data, function( dataItem ) {
   148 					return dataItem ? newTmplItem( options, parentItem, tmpl, dataItem ) : null;
   149 				}) :
   150 				[ newTmplItem( options, parentItem, tmpl, data ) ];
   151 			return topLevel ? jQuery( build( parentItem, null, ret ) ) : ret;
   152 		},
   153 
   154 		// Return rendered template item for an element.
   155 		tmplItem: function( elem ) {
   156 			var tmplItem;
   157 			if ( elem instanceof jQuery ) {
   158 				elem = elem[0];
   159 			}
   160 			while ( elem && elem.nodeType === 1 && !(tmplItem = jQuery.data( elem, "tmplItem" )) && (elem = elem.parentNode) ) {}
   161 			return tmplItem || topTmplItem;
   162 		},
   163 
   164 		// Set:
   165 		// Use $.template( name, tmpl ) to cache a named template,
   166 		// where tmpl is a template string, a script element or a jQuery instance wrapping a script element, etc.
   167 		// Use $( "selector" ).template( name ) to provide access by name to a script block template declaration.
   168 
   169 		// Get:
   170 		// Use $.template( name ) to access a cached template.
   171 		// Also $( selectorToScriptBlock ).template(), or $.template( null, templateString )
   172 		// will return the compiled template, without adding a name reference.
   173 		// If templateString includes at least one HTML tag, $.template( templateString ) is equivalent
   174 		// to $.template( null, templateString )
   175 		template: function( name, tmpl ) {
   176 			if (tmpl) {
   177 				// Compile template and associate with name
   178 				if ( typeof tmpl === "string" ) {
   179 					// This is an HTML string being passed directly in.
   180 					tmpl = buildTmplFn( tmpl );
   181 				} else if ( tmpl instanceof jQuery ) {
   182 					tmpl = tmpl[0] || {};
   183 				}
   184 				if ( tmpl.nodeType ) {
   185 					// If this is a template block, use cached copy, or generate tmpl function and cache.
   186 					tmpl = jQuery.data( tmpl, "tmpl" ) || jQuery.data( tmpl, "tmpl", buildTmplFn( tmpl.innerHTML ));
   187 					// Issue: In IE, if the container element is not a script block, the innerHTML will remove quotes from attribute values whenever the value does not include white space.
   188 					// This means that foo="${x}" will not work if the value of x includes white space: foo="${x}" -> foo=value of x.
   189 					// To correct this, include space in tag: foo="${ x }" -> foo="value of x"
   190 				}
   191 				return typeof name === "string" ? (jQuery.template[name] = tmpl) : tmpl;
   192 			}
   193 			// Return named compiled template
   194 			return name ? (typeof name !== "string" ? jQuery.template( null, name ):
   195 				(jQuery.template[name] ||
   196 					// If not in map, and not containing at least on HTML tag, treat as a selector.
   197 					// (If integrated with core, use quickExpr.exec)
   198 					jQuery.template( null, htmlExpr.test( name ) ? name : jQuery( name )))) : null;
   199 		},
   200 
   201 		encode: function( text ) {
   202 			// Do HTML encoding replacing < > & and ' and " by corresponding entities.
   203 			return ("" + text).split("<").join("&lt;").split(">").join("&gt;").split('"').join("&#34;").split("'").join("&#39;");
   204 		}
   205 	});
   206 
   207 	jQuery.extend( jQuery.tmpl, {
   208 		tag: {
   209 			"tmpl": {
   210 				_default: { $2: "null" },
   211 				open: "if($notnull_1){__=__.concat($item.nest($1,$2));}"
   212 				// tmpl target parameter can be of type function, so use $1, not $1a (so not auto detection of functions)
   213 				// This means that {{tmpl foo}} treats foo as a template (which IS a function).
   214 				// Explicit parens can be used if foo is a function that returns a template: {{tmpl foo()}}.
   215 			},
   216 			"wrap": {
   217 				_default: { $2: "null" },
   218 				open: "$item.calls(__,$1,$2);__=[];",
   219 				close: "call=$item.calls();__=call._.concat($item.wrap(call,__));"
   220 			},
   221 			"each": {
   222 				_default: { $2: "$index, $value" },
   223 				open: "if($notnull_1){$.each($1a,function($2){with(this){",
   224 				close: "}});}"
   225 			},
   226 			"if": {
   227 				open: "if(($notnull_1) && $1a){",
   228 				close: "}"
   229 			},
   230 			"else": {
   231 				_default: { $1: "true" },
   232 				open: "}else if(($notnull_1) && $1a){"
   233 			},
   234 			"html": {
   235 				// Unecoded expression evaluation.
   236 				open: "if($notnull_1){__.push($1a);}"
   237 			},
   238 			"=": {
   239 				// Encoded expression evaluation. Abbreviated form is ${}.
   240 				_default: { $1: "$data" },
   241 				open: "if($notnull_1){__.push($.encode($1a));}"
   242 			},
   243 			"!": {
   244 				// Comment tag. Skipped by parser
   245 				open: ""
   246 			}
   247 		},
   248 
   249 		// This stub can be overridden, e.g. in jquery.tmplPlus for providing rendered events
   250 		complete: function( items ) {
   251 			newTmplItems = {};
   252 		},
   253 
   254 		// Call this from code which overrides domManip, or equivalent
   255 		// Manage cloning/storing template items etc.
   256 		afterManip: function afterManip( elem, fragClone, callback ) {
   257 			// Provides cloned fragment ready for fixup prior to and after insertion into DOM
   258 			var content = fragClone.nodeType === 11 ?
   259 				jQuery.makeArray(fragClone.childNodes) :
   260 				fragClone.nodeType === 1 ? [fragClone] : [];
   261 
   262 			// Return fragment to original caller (e.g. append) for DOM insertion
   263 			callback.call( elem, fragClone );
   264 
   265 			// Fragment has been inserted:- Add inserted nodes to tmplItem data structure. Replace inserted element annotations by jQuery.data.
   266 			storeTmplItems( content );
   267 			cloneIndex++;
   268 		}
   269 	});
   270 
   271 	//========================== Private helper functions, used by code above ==========================
   272 
   273 	function build( tmplItem, nested, content ) {
   274 		// Convert hierarchical content into flat string array
   275 		// and finally return array of fragments ready for DOM insertion
   276 		var frag, ret = content ? jQuery.map( content, function( item ) {
   277 			return (typeof item === "string") ?
   278 				// Insert template item annotations, to be converted to jQuery.data( "tmplItem" ) when elems are inserted into DOM.
   279 				(tmplItem.key ? item.replace( /(<\w+)(?=[\s>])(?![^>]*_tmplitem)([^>]*)/g, "$1 " + tmplItmAtt + "=\"" + tmplItem.key + "\" $2" ) : item) :
   280 				// This is a child template item. Build nested template.
   281 				build( item, tmplItem, item._ctnt );
   282 		}) :
   283 		// If content is not defined, insert tmplItem directly. Not a template item. May be a string, or a string array, e.g. from {{html $item.html()}}.
   284 		tmplItem;
   285 		if ( nested ) {
   286 			return ret;
   287 		}
   288 
   289 		// top-level template
   290 		ret = ret.join("");
   291 
   292 		// Support templates which have initial or final text nodes, or consist only of text
   293 		// Also support HTML entities within the HTML markup.
   294 		ret.replace( /^\s*([^<\s][^<]*)?(<[\w\W]+>)([^>]*[^>\s])?\s*$/, function( all, before, middle, after) {
   295 			frag = jQuery( middle ).get();
   296 
   297 			storeTmplItems( frag );
   298 			if ( before ) {
   299 				frag = unencode( before ).concat(frag);
   300 			}
   301 			if ( after ) {
   302 				frag = frag.concat(unencode( after ));
   303 			}
   304 		});
   305 		return frag ? frag : unencode( ret );
   306 	}
   307 
   308 	function unencode( text ) {
   309 		// Use createElement, since createTextNode will not render HTML entities correctly
   310 		var el = document.createElement( "div" );
   311 		el.innerHTML = text;
   312 		return jQuery.makeArray(el.childNodes);
   313 	}
   314 
   315 	// Generate a reusable function that will serve to render a template against data
   316 	function buildTmplFn( markup ) {
   317 		return new Function("jQuery","$item",
   318 			// Use the variable __ to hold a string array while building the compiled template. (See https://github.com/jquery/jquery-tmpl/issues#issue/10).
   319 			"var $=jQuery,call,__=[],$data=$item.data;" +
   320 
   321 			// Introduce the data as local variables using with(){}
   322 			"with($data){__.push('" +
   323 
   324 			// Convert the template into pure JavaScript
   325 			jQuery.trim(markup)
   326 				.replace( /([\\'])/g, "\\$1" )
   327 				.replace( /[\r\t\n]/g, " " )
   328 				.replace( /\$\{([^\}]*)\}/g, "{{= $1}}" )
   329 				.replace( /\{\{(\/?)(\w+|.)(?:\(((?:[^\}]|\}(?!\}))*?)?\))?(?:\s+(.*?)?)?(\(((?:[^\}]|\}(?!\}))*?)\))?\s*\}\}/g,
   330 				function( all, slash, type, fnargs, target, parens, args ) {
   331 					var tag = jQuery.tmpl.tag[ type ], def, expr, exprAutoFnDetect;
   332 					if ( !tag ) {
   333 						throw "Unknown template tag: " + type;
   334 					}
   335 					def = tag._default || [];
   336 					if ( parens && !/\w$/.test(target)) {
   337 						target += parens;
   338 						parens = "";
   339 					}
   340 					if ( target ) {
   341 						target = unescape( target );
   342 						args = args ? ("," + unescape( args ) + ")") : (parens ? ")" : "");
   343 						// Support for target being things like a.toLowerCase();
   344 						// In that case don't call with template item as 'this' pointer. Just evaluate...
   345 						expr = parens ? (target.indexOf(".") > -1 ? target + unescape( parens ) : ("(" + target + ").call($item" + args)) : target;
   346 						exprAutoFnDetect = parens ? expr : "(typeof(" + target + ")==='function'?(" + target + ").call($item):(" + target + "))";
   347 					} else {
   348 						exprAutoFnDetect = expr = def.$1 || "null";
   349 					}
   350 					fnargs = unescape( fnargs );
   351 					return "');" +
   352 						tag[ slash ? "close" : "open" ]
   353 							.split( "$notnull_1" ).join( target ? "typeof(" + target + ")!=='undefined' && (" + target + ")!=null" : "true" )
   354 							.split( "$1a" ).join( exprAutoFnDetect )
   355 							.split( "$1" ).join( expr )
   356 							.split( "$2" ).join( fnargs || def.$2 || "" ) +
   357 						"__.push('";
   358 				}) +
   359 			"');}return __;"
   360 		);
   361 	}
   362 	function updateWrapped( options, wrapped ) {
   363 		// Build the wrapped content.
   364 		options._wrap = build( options, true,
   365 			// Suport imperative scenario in which options.wrapped can be set to a selector or an HTML string.
   366 			jQuery.isArray( wrapped ) ? wrapped : [htmlExpr.test( wrapped ) ? wrapped : jQuery( wrapped ).html()]
   367 		).join("");
   368 	}
   369 
   370 	function unescape( args ) {
   371 		return args ? args.replace( /\\'/g, "'").replace(/\\\\/g, "\\" ) : null;
   372 	}
   373 	function outerHtml( elem ) {
   374 		var div = document.createElement("div");
   375 		div.appendChild( elem.cloneNode(true) );
   376 		return div.innerHTML;
   377 	}
   378 
   379 	// Store template items in jQuery.data(), ensuring a unique tmplItem data data structure for each rendered template instance.
   380 	function storeTmplItems( content ) {
   381 		var keySuffix = "_" + cloneIndex, elem, elems, newClonedItems = {}, i, l, m;
   382 		for ( i = 0, l = content.length; i < l; i++ ) {
   383 			if ( (elem = content[i]).nodeType !== 1 ) {
   384 				continue;
   385 			}
   386 			elems = elem.getElementsByTagName("*");
   387 			for ( m = elems.length - 1; m >= 0; m-- ) {
   388 				processItemKey( elems[m] );
   389 			}
   390 			processItemKey( elem );
   391 		}
   392 		function processItemKey( el ) {
   393 			var pntKey, pntNode = el, pntItem, tmplItem, key;
   394 			// Ensure that each rendered template inserted into the DOM has its own template item,
   395 			if ( (key = el.getAttribute( tmplItmAtt ))) {
   396 				while ( pntNode.parentNode && (pntNode = pntNode.parentNode).nodeType === 1 && !(pntKey = pntNode.getAttribute( tmplItmAtt ))) { }
   397 				if ( pntKey !== key ) {
   398 					// The next ancestor with a _tmplitem expando is on a different key than this one.
   399 					// So this is a top-level element within this template item
   400 					// Set pntNode to the key of the parentNode, or to 0 if pntNode.parentNode is null, or pntNode is a fragment.
   401 					pntNode = pntNode.parentNode ? (pntNode.nodeType === 11 ? 0 : (pntNode.getAttribute( tmplItmAtt ) || 0)) : 0;
   402 					if ( !(tmplItem = newTmplItems[key]) ) {
   403 						// The item is for wrapped content, and was copied from the temporary parent wrappedItem.
   404 						tmplItem = wrappedItems[key];
   405 						tmplItem = newTmplItem( tmplItem, newTmplItems[pntNode]||wrappedItems[pntNode] );
   406 						tmplItem.key = ++itemKey;
   407 						newTmplItems[itemKey] = tmplItem;
   408 					}
   409 					if ( cloneIndex ) {
   410 						cloneTmplItem( key );
   411 					}
   412 				}
   413 				el.removeAttribute( tmplItmAtt );
   414 			} else if ( cloneIndex && (tmplItem = jQuery.data( el, "tmplItem" )) ) {
   415 				// This was a rendered element, cloned during append or appendTo etc.
   416 				// TmplItem stored in jQuery data has already been cloned in cloneCopyEvent. We must replace it with a fresh cloned tmplItem.
   417 				cloneTmplItem( tmplItem.key );
   418 				newTmplItems[tmplItem.key] = tmplItem;
   419 				pntNode = jQuery.data( el.parentNode, "tmplItem" );
   420 				pntNode = pntNode ? pntNode.key : 0;
   421 			}
   422 			if ( tmplItem ) {
   423 				pntItem = tmplItem;
   424 				// Find the template item of the parent element.
   425 				// (Using !=, not !==, since pntItem.key is number, and pntNode may be a string)
   426 				while ( pntItem && pntItem.key != pntNode ) {
   427 					// Add this element as a top-level node for this rendered template item, as well as for any
   428 					// ancestor items between this item and the item of its parent element
   429 					pntItem.nodes.push( el );
   430 					pntItem = pntItem.parent;
   431 				}
   432 				// Delete content built during rendering - reduce API surface area and memory use, and avoid exposing of stale data after rendering...
   433 				delete tmplItem._ctnt;
   434 				delete tmplItem._wrap;
   435 				// Store template item as jQuery data on the element
   436 				jQuery.data( el, "tmplItem", tmplItem );
   437 			}
   438 			function cloneTmplItem( key ) {
   439 				key = key + keySuffix;
   440 				tmplItem = newClonedItems[key] =
   441 					(newClonedItems[key] || newTmplItem( tmplItem, newTmplItems[tmplItem.parent.key + keySuffix] || tmplItem.parent ));
   442 			}
   443 		}
   444 	}
   445 
   446 	//---- Helper functions for template item ----
   447 
   448 	function tiCalls( content, tmpl, data, options ) {
   449 		if ( !content ) {
   450 			return stack.pop();
   451 		}
   452 		stack.push({ _: content, tmpl: tmpl, item:this, data: data, options: options });
   453 	}
   454 
   455 	function tiNest( tmpl, data, options ) {
   456 		// nested template, using {{tmpl}} tag
   457 		return jQuery.tmpl( jQuery.template( tmpl ), data, options, this );
   458 	}
   459 
   460 	function tiWrap( call, wrapped ) {
   461 		// nested template, using {{wrap}} tag
   462 		var options = call.options || {};
   463 		options.wrapped = wrapped;
   464 		// Apply the template, which may incorporate wrapped content,
   465 		return jQuery.tmpl( jQuery.template( call.tmpl ), call.data, options, call.item );
   466 	}
   467 
   468 	function tiHtml( filter, textOnly ) {
   469 		var wrapped = this._wrap;
   470 		return jQuery.map(
   471 			jQuery( jQuery.isArray( wrapped ) ? wrapped.join("") : wrapped ).filter( filter || "*" ),
   472 			function(e) {
   473 				return textOnly ?
   474 					e.innerText || e.textContent :
   475 					e.outerHTML || outerHtml(e);
   476 			});
   477 	}
   478 
   479 	function tiUpdate() {
   480 		var coll = this.nodes;
   481 		jQuery.tmpl( null, null, null, this).insertBefore( coll[0] );
   482 		jQuery( coll ).remove();
   483 	}
   484 })( jQuery );