/* * Copyright 2005 Joe Walker * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /** * Declare an object to which we can add real functions. */ if (typeof dwr == 'undefined') dwr = {}; if (!dwr.util) dwr.util = {}; /** @private The flag we use to decide if we should escape html */ dwr.util._escapeHtml = true; /** * Set the global escapeHtml flag */ dwr.util.setEscapeHtml = function(escapeHtml) { dwr.util._escapeHtml = escapeHtml; }; /** @private Work out from an options list and global settings if we should be esccaping */ dwr.util._shouldEscapeHtml = function(options) { if (options && options.escapeHtml != null) { return options.escapeHtml; } return dwr.util._escapeHtml; }; /** * Return a string with &, < and > replaced with their entities * @see TODO */ dwr.util.escapeHtml = function(original) { return original.replace(/&/g,'&').replace(//g,'>').replace(/"/g,'"').replace(/'/g,'''); }; /** * Replace common XML entities with characters (see dwr.util.escapeHtml()) * @see TODO */ dwr.util.unescapeHtml = function(original) { return original.replace(/</g,'<').replace(/>/g,'>').replace(/"/g,'"').replace(/'/g,"'").replace(/&/g,'&'); }; /** * Replace characters dangerous for XSS reasons with visually similar characters * @see TODO */ dwr.util.replaceXmlCharacters = function(original) { original = original.replace("&", "+"); original = original.replace("<", "\u2039"); original = original.replace(">", "\u203A"); original = original.replace("\'", "\u2018"); original = original.replace("\"", "\u201C"); return original; }; /** * Return true iff the input string contains any XSS dangerous characters * @see TODO */ dwr.util.containsXssRiskyCharacters = function(original) { return (original.indexOf('&') != -1 || original.indexOf('<') != -1 || original.indexOf('>') != -1 || original.indexOf('\'') != -1 || original.indexOf('\"') != -1); }; /** * Enables you to react to return being pressed in an input * @see http://getahead.org/dwr/browser/util/selectrange */ dwr.util.onReturn = function(event, action) { if (!event) event = window.event; if (event && event.keyCode && event.keyCode == 13) action(); }; /** * Select a specific range in a text box. Useful for 'google suggest' type functions. * @see http://getahead.org/dwr/browser/util/selectrange */ dwr.util.selectRange = function(ele, start, end) { ele = dwr.util._getElementById(ele, "selectRange()"); if (ele == null) return; if (ele.setSelectionRange) { ele.setSelectionRange(start, end); } else if (ele.createTextRange) { var range = ele.createTextRange(); range.moveStart("character", start); range.moveEnd("character", end - ele.value.length); range.select(); } ele.focus(); }; /** * Find the element in the current HTML document with the given id or ids * @see http://getahead.org/dwr/browser/util/$ */ dwr.util.byId = function() { var elems = []; for (var i = 0; i < arguments.length; i++) { var idOrElem = arguments[i]; var elem; if (typeof idOrElem == 'string') { var elem = document.getElementById(idOrElem); // Workaround for IE and Opera that may return element based on name if (document.all && elem && dwr.util._getId(elem) != idOrElem) { elem = null; var maybeElems = document.all[idOrElem]; if (maybeElems.tagName) maybeElems = [maybeElems]; for (var j = 0; j < maybeElems.length; j++) { if (dwr.util._getId(maybeElems[j]) == idOrElem) { elem = maybeElems[j]; break; } } } } else { elem = idOrElem; } if (arguments.length == 1) { return elem; } elems.push(elem); } return elems; } dwr.util._getId = function(elem) { // Get the element's real id. In some situations IE may (wrongly) // return another element from the getAttribute() call so we watch out for // this case and use the attributes.id value instead. Note that the use of // the attributes collection may cause problems in IE7 together with // cloneNode so we avoid hitting it when possible. var elemId = elem.getAttribute("id"); if (dwr.util._isObject(elemId)) { elemId = elem.attributes.id.value; } return elemId; }; /** * Alias $ to dwr.util.byId * @see http://getahead.org/dwr/browser/util/$ */ if (typeof $ == 'undefined') { $ = dwr.util.byId; } /** * This function pretty-prints simple data or whole object graphs, f ex as an aid in debugging. * @see http://getahead.org/dwr/browser/util/todescriptivestring */ dwr.util.toDescriptiveString = function(data, showLevels, options) { if (showLevels === undefined) showLevels = 1; var opt = {}; if (dwr.util._isObject(options)) opt = options; var defaultoptions = { escapeHtml:false, baseIndent: "", childIndent: "\u00A0\u00A0", lineTerminator: "\n", oneLineMaxItems: 5, shortStringMaxLength: 13, propertyNameMaxLength: 30 }; for (var p in defaultoptions) { if (!(p in opt)) { opt[p] = defaultoptions[p]; } } var skipDomProperties = { document:true, ownerDocument:true, all:true, parentElement:true, parentNode:true, offsetParent:true, children:true, firstChild:true, lastChild:true, previousSibling:true, nextSibling:true, innerHTML:true, outerHTML:true, innerText:true, outerText:true, textContent:true, attributes:true, style:true, currentStyle:true, runtimeStyle:true, parentTextEdit:true }; function recursive(data, showLevels, indentDepth, options) { var reply = ""; try { // string if (dwr.util._isString(data)) { var str = data; if (showLevels == 0 && str.length > options.shortStringMaxLength) str = str.substring(0, options.shortStringMaxLength-3) + "..."; if (options.escapeHtml) { // Do the escape separately for every line as escapeHtml() on some // browsers (IE) will strip line breaks and we want to preserve them var lines = str.split("\n"); for (var i = 0; i < lines.length; i++) lines[i] = dwr.util.escapeHtml(lines[i]); str = lines.join("\n"); } if (showLevels == 0) { // Short format str = str.replace(/\n|\r|\t/g, function(ch) { switch (ch) { case "\n": return "\\n"; case "\r": return ""; case "\t": return "\\t"; } }); } else { // Long format str = str.replace(/\n|\r|\t/g, function(ch) { switch (ch) { case "\n": return options.lineTerminator + indent(indentDepth+1, options); case "\r": return ""; case "\t": return "\\t"; } }); } reply = '"' + str + '"'; } // function else if (dwr.util._isFunction(data)) { reply = "function"; } // Array else if (dwr.util._isArrayLike(data)) { if (showLevels == 0) { // Short format (don't show items) if (data.length > 0) reply = "[...]"; else reply = "[]"; } else { // Long format (show items) var strarr = []; strarr.push("["); var count = 0; for (var i = 0; i < data.length; i++) { if (!(i in data) && data != "[object NodeList]") continue; var itemvalue = data[i]; if (count > 0) strarr.push(", "); if (showLevels == 1) { // One-line format if (count == options.oneLineMaxItems) { strarr.push("..."); break; } } else { // Multi-line format strarr.push(options.lineTerminator + indent(indentDepth+1, options)); } if (i != count) { strarr.push(i); strarr.push(":"); } strarr.push(recursive(itemvalue, showLevels-1, indentDepth+1, options)); count++; } if (showLevels > 1) strarr.push(options.lineTerminator + indent(indentDepth, options)); strarr.push("]"); reply = strarr.join(""); } } // Objects except Date else if (dwr.util._isObject(data) && !dwr.util._isDate(data)) { if (showLevels == 0) { // Short format (don't show properties) reply = dwr.util._detailedTypeOf(data); } else { // Long format (show properties) var strarr = []; if (dwr.util._detailedTypeOf(data) != "Object") { strarr.push(dwr.util._detailedTypeOf(data)); if (typeof data.valueOf() != "object") { strarr.push(":"); strarr.push(recursive(data.valueOf(), 1, indentDepth, options)); } strarr.push(" "); } strarr.push("{"); var isDomObject = dwr.util._isHTMLElement(data); var count = 0; for (var prop in data) { var propvalue = data[prop]; if (isDomObject) { if (propvalue == null) continue; if (typeof propvalue == "function") continue; if (skipDomProperties[prop]) continue; if (prop.toUpperCase() == prop) continue; } if (count > 0) strarr.push(", "); if (showLevels == 1) { // One-line format if (count == options.oneLineMaxItems) { strarr.push("..."); break; } } else { // Multi-line format strarr.push(options.lineTerminator + indent(indentDepth+1, options)); } strarr.push(prop.length > options.propertyNameMaxLength ? prop.substring(0, options.propertyNameMaxLength-3) + "..." : prop); strarr.push(":"); strarr.push(recursive(propvalue, showLevels-1, indentDepth+1, options)); count++; } if (showLevels > 1 && count > 0) strarr.push(options.lineTerminator + indent(indentDepth, options)); strarr.push("}"); reply = strarr.join(""); } } // undefined, null, number, boolean, Date else { reply = "" + data; } return reply; } catch(err) { return (err.message ? err.message : ""+err); } } function indent(count, options) { var strarr = []; strarr.push(options.baseIndent); for (var i=0; i= 1) ele = nodes.item(0); } if (ele == null) { dwr.util._debug("setValue() can't find an element with id/name: " + orig + "."); return; } // All paths now lead to some update so we highlight a change dwr.util.highlight(ele, options); if (dwr.util._isHTMLElement(ele, "select")) { if (ele.type == "select-multiple" && dwr.util._isArray(val)) dwr.util._selectListItems(ele, val); else dwr.util._selectListItem(ele, val); return; } if (dwr.util._isHTMLElement(ele, "input")) { if (ele.type == "radio" || ele.type == "checkbox") { if (nodes && nodes.length >= 1) { for (var i = 0; i < nodes.length; i++) { var node = nodes.item(i); if (node.type != ele.type) continue; if (dwr.util._isArray(val)) { node.checked = false; for (var j = 0; j < val.length; j++) if (val[j] == node.value) node.checked = true; } else { node.checked = (node.value == val); } } } else { ele.checked = (val == true); } } else ele.value = val; return; } if (dwr.util._isHTMLElement(ele, "textarea")) { ele.value = val; return; } if (dwr.util._isHTMLElement(ele, "img")) { ele.src = val; return; } // If the value to be set is a DOM object then we try importing the node // rather than serializing it out if (val.nodeType) { if (val.nodeType == 9 /*Node.DOCUMENT_NODE*/) val = val.documentElement; val = dwr.util._importNode(ele.ownerDocument, val, true); ele.appendChild(val); return; } // Fall back to innerHTML and friends if (dwr.util._shouldEscapeHtml(options)) { if ("textContent" in ele) ele.textContent = val.toString(); else if ("innerText" in ele) ele.innerText = val.toString(); else ele.innerHTML = dwr.util.escapeHtml(val.toString()); } else { ele.innerHTML = val; } }; /** * @private Find multiple items in a select list and select them. Used by setValue() * @param ele The select list item * @param val The array of values to select */ dwr.util._selectListItems = function(ele, val) { // We deal with select list elements by selecting the matching option // Begin by searching through the values var found = 0; var i; var j; for (i = 0; i < ele.options.length; i++) { ele.options[i].selected = false; for (j = 0; j < val.length; j++) { if (ele.options[i].value == val[j]) { ele.options[i].selected = true; found++; } } } // If that fails then try searching through the visible text if (found == val.length) return; for (i = 0; i < ele.options.length; i++) { for (j = 0; j < val.length; j++) { if (ele.options[i].text == val[j]) { ele.options[i].selected = true; } } } }; /** * @private Find an item in a select list and select it. Used by setValue() * @param ele The select list item * @param val The value to select */ dwr.util._selectListItem = function(ele, val) { // We deal with select list elements by selecting the matching option // Begin by searching through the values var found = false; var i; for (i = 0; i < ele.options.length; i++) { if (ele.options[i].value == val) { ele.options[i].selected = true; found = true; } else { ele.options[i].selected = false; } } // If that fails then try searching through the visible text if (found) return; for (i = 0; i < ele.options.length; i++) { ele.options[i].selected = (ele.options[i].text == val); } }; /** * Read the current value for a given HTML element. * @see http://getahead.org/dwr/browser/util/getvalue */ dwr.util.getValue = function(ele, options) { if (options == null) options = {}; var orig = ele; ele = dwr.util.byId(ele); // Returns null if argument is a name, even on IE var nodes = null; if (ele == null) { // Now it is time to look by name nodes = document.getElementsByName(orig); if (nodes.length >= 1) ele = nodes.item(0); } if (ele == null) { dwr.util._debug("getValue() can't find an element with id/name: " + orig + "."); return ""; } if (dwr.util._isHTMLElement(ele, "select")) { // Using "type" property instead of "multiple" as "type" is an official // client-side property since JS 1.1 if (ele.type == "select-multiple") { var reply = new Array(); for (var i = 0; i < ele.options.length; i++) { var item = ele.options[i]; if (item.selected) { var valueAttr = item.getAttributeNode("value"); if (valueAttr && valueAttr.specified) { reply.push(item.value); } else { reply.push(item.text); } } } return reply; } else { var sel = ele.selectedIndex; if (sel != -1) { var item = ele.options[sel]; var valueAttr = item.getAttributeNode("value"); if (valueAttr && valueAttr.specified) { return item.value; } return item.text; } else { return ""; } } } if (dwr.util._isHTMLElement(ele, "input")) { if (ele.type == "radio") { if (nodes && nodes.length >= 1) { for (var i = 0; i < nodes.length; i++) { var node = nodes.item(i); if (node.type == ele.type) { if (node.checked) return node.value; } } } return ele.checked; } if (ele.type == "checkbox") { if (nodes && nodes.length >= 1) { var reply = []; for (var i = 0; i < nodes.length; i++) { var node = nodes.item(i); if (node.type == ele.type) { if (node.checked) reply.push(node.value); } } return reply; } return ele.checked; } if (ele.type == "file") { return ele; } return ele.value; } if (dwr.util._isHTMLElement(ele, "textarea")) { return ele.value; } if (dwr.util._shouldEscapeHtml(options)) { if ("textContent" in ele) return ele.textContent; else if ("innerText" in ele) return ele.innerText; } return ele.innerHTML; }; /** * getText() is like getValue() except that it reads the text (and not the value) from select elements * @see http://getahead.org/dwr/browser/util/gettext */ dwr.util.getText = function(ele) { ele = dwr.util._getElementById(ele, "getText()"); if (ele == null) return null; if (!dwr.util._isHTMLElement(ele, "select")) { dwr.util._debug("getText() can only be used with select elements. Attempt to use: " + dwr.util._detailedTypeOf(ele) + " from id: " + orig + "."); return ""; } // This is a bit of a scam because it assumes single select // but I'm not sure how we should treat multi-select. var sel = ele.selectedIndex; if (sel != -1) { return ele.options[sel].text; } else { return ""; } }; /** * Given a map, or a recursive structure consisting of arrays and maps, call * setValue() for all leaf entries and use intermediate levels to form nested * element ids. * @see http://getahead.org/dwr/browser/util/setvalues */ dwr.util.setValues = function(data, options) { var prefix = ""; var depth = 100; if (options && "prefix" in options) prefix = options.prefix; if (options && "idPrefix" in options) prefix = options.idPrefix; if (options && "depth" in options) depth = options.depth; dwr.util._setValuesRecursive(data, prefix, depth, options); }; /** * @private Recursive helper for setValues() */ dwr.util._setValuesRecursive = function(data, idpath, depth, options) { if (depth == 0) return; // Array containing objects -> add "[n]" to prefix and make recursive call // for each item object if (dwr.util._isArray(data) && data.length > 0 && dwr.util._isObject(data[0])) { for (var i = 0; i < data.length; i++) { dwr.util._setValuesRecursive(data[i], idpath+"["+i+"]", depth-1, options); } } // Object (not array) -> handle nested object properties else if (dwr.util._isObject(data) && !dwr.util._isArray(data)) { for (var prop in data) { var subidpath = idpath ? idpath+"."+prop : prop; // Object (not array), or array containing objects -> call ourselves recursively if (dwr.util._isObject(data[prop]) && !dwr.util._isArray(data[prop]) && !dwr.util._isDate(data[prop]) || dwr.util._isArray(data[prop]) && data[prop].length > 0 && dwr.util._isObject(data[prop][0])) { dwr.util._setValuesRecursive(data[prop], subidpath, depth-1, options); } // Functions -> skip else if (typeof data[prop] == "function") { // NOP } // Only simple values left (or array of simple values, or empty array) // -> call setValue() else { // Are there any elements with that id or name if (dwr.util.byId(subidpath) != null || document.getElementsByName(subidpath).length >= 1) { dwr.util.setValue(subidpath, data[prop], options); } } } } }; /** * Given a map, or a recursive structure consisting of arrays and maps, call * getValue() for all leaf entries and use intermediate levels to form nested * element ids. * Given a string or element that refers to a form, create an object from the * elements of the form. * @see http://getahead.org/dwr/browser/util/getvalues */ dwr.util.getValues = function(data, options) { if (typeof data == "string" || dwr.util._isHTMLElement(data)) { return dwr.util.getFormValues(data); } else { var prefix = ""; var depth = 100; if (options != null && "prefix" in options) prefix = options.prefix; if (options != null && "idPrefix" in options) prefix = options.idPrefix; if (options != null && "depth" in options) depth = options.depth; dwr.util._getValuesRecursive(data, prefix, depth, options); return data; } }; /** * Given a string or element that refers to a form, create an object from the * elements of the form. * @see http://getahead.org/dwr/browser/util/getvalues */ dwr.util.getFormValues = function(eleOrNameOrId) { var ele = null; if (typeof eleOrNameOrId == "string") { ele = document.forms[eleOrNameOrId]; // arg is name if (ele == null) ele = dwr.util.byId(eleOrNameOrId); // arg is id } else if (dwr.util._isHTMLElement(eleOrNameOrId)) { ele = eleOrNameOrId; // arg is element } if (ele != null) { if (ele.elements == null) { alert("getFormValues() requires an object or reference to a form element."); return null; } var reply = {}; var name; var value; for (var i = 0; i < ele.elements.length; i++) { if (ele[i].type in {button:0,submit:0,reset:0,image:0,file:0}) continue; if (ele[i].name) { name = ele[i].name; value = dwr.util.getValue(name); } else { if (ele[i].id) name = ele[i].id; else name = "element" + i; value = dwr.util.getValue(ele[i]); } reply[name] = value; } return reply; } }; /** * @private Recursive helper for getValues(). */ dwr.util._getValuesRecursive = function(data, idpath, depth, options) { if (depth == 0) return; // Array containing objects -> add "[n]" to idpath and make recursive call // for each item object if (dwr.util._isArray(data) && data.length > 0 && dwr.util._isObject(data[0])) { for (var i = 0; i < data.length; i++) { dwr.util._getValuesRecursive(data[i], idpath+"["+i+"]", depth-1, options); } } // Object (not array) -> handle nested object properties else if (dwr.util._isObject(data) && !dwr.util._isArray(data)) { for (var prop in data) { var subidpath = idpath ? idpath+"."+prop : prop; // Object, or array containing objects -> call ourselves recursively if (dwr.util._isObject(data[prop]) && !dwr.util._isArray(data[prop]) || dwr.util._isArray(data[prop]) && data[prop].length > 0 && dwr.util._isObject(data[prop][0])) { dwr.util._getValuesRecursive(data[prop], subidpath, depth-1, options); } // Functions -> skip else if (typeof data[prop] == "function") { // NOP } // Only simple values left (or array of simple values, or empty array) // -> call getValue() else { // Are there any elements with that id or name if (dwr.util.byId(subidpath) != null || document.getElementsByName(subidpath).length >= 1) { data[prop] = dwr.util.getValue(subidpath); } } } } }; /** * Add options to a list from an array or map. * @see http://getahead.org/dwr/browser/lists */ dwr.util.addOptions = function(ele, data/*, options*/) { ele = dwr.util._getElementById(ele, "addOptions()"); if (ele == null) return; var useOptions = dwr.util._isHTMLElement(ele, "select"); var useLi = dwr.util._isHTMLElement(ele, ["ul", "ol"]); if (!useOptions && !useLi) { dwr.util._debug("addOptions() can only be used with select/ul/ol elements. Attempt to use: " + dwr.util._detailedTypeOf(ele)); return; } if (data == null) return; var argcount = arguments.length; var options = {}; var lastarg = arguments[argcount - 1]; if (argcount > 2 && dwr.util._isObject(lastarg)) { options = lastarg; argcount--; } var arg3 = null; if (argcount >= 3) arg3 = arguments[2]; var arg4 = null; if (argcount >= 4) arg4 = arguments[3]; if (!options.optionCreator && useOptions) options.optionCreator = dwr.util._defaultOptionCreator; if (!options.optionCreator && useLi) options.optionCreator = dwr.util._defaultListItemCreator; options.document = ele.ownerDocument; var text, value, li; if (dwr.util._isArray(data)) { // Loop through the data that we do have for (var i = 0; i < data.length; i++) { options.data = data[i]; options.text = null; options.value = null; if (useOptions) { if (arg3 != null) { if (arg4 != null) { options.text = dwr.util._getValueFrom(data[i], arg4); options.value = dwr.util._getValueFrom(data[i], arg3); } else options.text = options.value = dwr.util._getValueFrom(data[i], arg3); } else options.text = options.value = dwr.util._getValueFrom(data[i]); if (options.text != null || options.value) { var opt = options.optionCreator(options); opt.text = options.text; opt.value = options.value; ele.options[ele.options.length] = opt; } } else { options.value = dwr.util._getValueFrom(data[i], arg3); if (options.value != null) { li = options.optionCreator(options); if (dwr.util._shouldEscapeHtml(options)) { options.value = dwr.util.escapeHtml(options.value); } li.innerHTML = options.value; ele.appendChild(li); } } } } else if (arg4 != null) { if (!useOptions) { alert("dwr.util.addOptions can only create select lists from objects."); return; } for (var prop in data) { options.data = data[prop]; options.value = dwr.util._getValueFrom(data[prop], arg3); options.text = dwr.util._getValueFrom(data[prop], arg4); if (options.text != null || options.value) { var opt = options.optionCreator(options); opt.text = options.text; opt.value = options.value; ele.options[ele.options.length] = opt; } } } else { if (!useOptions) { dwr.util._debug("dwr.util.addOptions can only create select lists from objects."); return; } for (var prop in data) { if (typeof data[prop] == "function") continue; options.data = data[prop]; if (arg3 == null) { options.value = prop; options.text = data[prop]; } else { options.value = data[prop]; options.text = prop; } if (options.text != null || options.value) { var opt = options.optionCreator(options); opt.text = options.text; opt.value = options.value; ele.options[ele.options.length] = opt; } } } // All error routes through this function result in a return, so highlight now dwr.util.highlight(ele, options); }; /** * @private Get the data from an array function for dwr.util.addOptions */ dwr.util._getValueFrom = function(data, method) { if (method == null) return data; else if (typeof method == 'function') return method(data); else return data[method]; }; /** * @private Default option creation function */ dwr.util._defaultOptionCreator = function(options) { return options.document.createElement("option"); }; /** * @private Default list item creation function */ dwr.util._defaultListItemCreator = function(options) { return options.document.createElement("li"); }; /** * Remove all the options from a select list (specified by id) * @see http://getahead.org/dwr/browser/lists */ dwr.util.removeAllOptions = function(ele) { ele = dwr.util._getElementById(ele, "removeAllOptions()"); if (ele == null) return; var useOptions = dwr.util._isHTMLElement(ele, "select"); var useLi = dwr.util._isHTMLElement(ele, ["ul", "ol"]); if (!useOptions && !useLi) { dwr.util._debug("removeAllOptions() can only be used with select, ol and ul elements. Attempt to use: " + dwr.util._detailedTypeOf(ele)); return; } if (useOptions) { ele.options.length = 0; } else { while (ele.childNodes.length > 0) { ele.removeChild(ele.firstChild); } } }; /** * Create rows inside a the table, tbody, thead or tfoot element (given by id). * @see http://getahead.org/dwr/browser/tables */ dwr.util.addRows = function(ele, data, cellFuncs, options) { ele = dwr.util._getElementById(ele, "addRows()"); if (ele == null) return; if (!dwr.util._isHTMLElement(ele, ["table", "tbody", "thead", "tfoot"])) { dwr.util._debug("addRows() can only be used with table, tbody, thead and tfoot elements. Attempt to use: " + dwr.util._detailedTypeOf(ele)); return; } if (!options) options = {}; if (!options.rowCreator) options.rowCreator = dwr.util._defaultRowCreator; if (!options.cellCreator) options.cellCreator = dwr.util._defaultCellCreator; options.document = ele.ownerDocument; var tr, rowNum; if (dwr.util._isArray(data)) { for (rowNum = 0; rowNum < data.length; rowNum++) { options.rowData = data[rowNum]; options.rowIndex = rowNum; options.rowNum = rowNum; options.data = null; options.cellNum = -1; tr = dwr.util._addRowInner(cellFuncs, options); if (tr != null) ele.appendChild(tr); } } else if (typeof data == "object") { rowNum = 0; for (var rowIndex in data) { options.rowData = data[rowIndex]; options.rowIndex = rowIndex; options.rowNum = rowNum; options.data = null; options.cellNum = -1; tr = dwr.util._addRowInner(cellFuncs, options); if (tr != null) ele.appendChild(tr); rowNum++; } } dwr.util.highlight(ele, options); }; /** * @private The contents we put in empty table cells to workaround IE's border bug. */ dwr.util._emptyTableCellReplacement = "
"; /** * @private Internal function to draw a single row of a table. */ dwr.util._addRowInner = function(cellFuncs, options) { var tr = options.rowCreator(options); if (tr == null) return null; for (var cellNum = 0; cellNum < cellFuncs.length; cellNum++) { var func = cellFuncs[cellNum]; if (typeof func == 'function') options.data = func(options.rowData, options); else options.data = func || ""; options.cellNum = cellNum; var td = options.cellCreator(options); if (td != null) { if ("data" in options) { if (dwr.util._isHTMLElement(options.data)) td.appendChild(options.data); else { if (dwr.util._shouldEscapeHtml(options) && typeof(options.data) == "string") { td.innerHTML = dwr.util.escapeHtml(options.data); } else { td.innerHTML = options.data; } } } else { td.innerHTML = dwr.util._emptyTableCellReplacement; } tr.appendChild(td); } } return tr; }; /** * @private Default row creation function */ dwr.util._defaultRowCreator = function(options) { return options.document.createElement("tr"); }; /** * @private Default cell creation function */ dwr.util._defaultCellCreator = function(options) { return options.document.createElement("td"); }; /** * Remove all the children of a given node. * @see http://getahead.org/dwr/browser/tables */ dwr.util.removeAllRows = function(ele, options) { ele = dwr.util._getElementById(ele, "removeAllRows()"); if (ele == null) return; if (!options) options = {}; if (!options.filter) options.filter = function() { return true; }; if (!dwr.util._isHTMLElement(ele, ["table", "tbody", "thead", "tfoot"])) { dwr.util._debug("removeAllRows() can only be used with table, tbody, thead and tfoot elements. Attempt to use: " + dwr.util._detailedTypeOf(ele)); return; } var child = ele.firstChild; var next; while (child != null) { next = child.nextSibling; if (options.filter(child)) { ele.removeChild(child); } child = next; } }; /** * dwr.util.byId(ele).className = "X", that we can call from Java easily. */ dwr.util.setClassName = function(ele, className) { ele = dwr.util._getElementById(ele, "setClassName()"); if (ele == null) return; ele.className = className; }; /** * dwr.util.byId(ele).className += "X", that we can call from Java easily. */ dwr.util.addClassName = function(ele, className) { ele = dwr.util._getElementById(ele, "addClassName()"); if (ele == null) return; ele.className += " " + className; }; /** * dwr.util.byId(ele).className -= "X", that we can call from Java easily * From code originally by Gavin Kistner */ dwr.util.removeClassName = function(ele, className) { ele = dwr.util._getElementById(ele, "removeClassName()"); if (ele == null) return; var regex = new RegExp("(^|\\s)" + className + "(\\s|$)", 'g'); ele.className = ele.className.replace(regex, ''); }; /** * dwr.util.byId(ele).className |= "X", that we can call from Java easily. */ dwr.util.toggleClassName = function(ele, className) { ele = dwr.util._getElementById(ele, "toggleClassName()"); if (ele == null) return; var regex = new RegExp("(^|\\s)" + className + "(\\s|$)"); if (regex.test(ele.className)) { ele.className = ele.className.replace(regex, ''); } else { ele.className += " " + className; } }; /** * Clone a node and insert it into the document just above the 'template' node * @see http://getahead.org/dwr/??? */ dwr.util.cloneNode = function(ele, options) { ele = dwr.util._getElementById(ele, "cloneNode()"); if (ele == null) return null; if (options == null) options = {}; var clone = ele.cloneNode(true); if ("idPrefix" in options || "idSuffix" in options) { dwr.util._updateIds(clone, options); } else { dwr.util._removeIds(clone); } ele.parentNode.insertBefore(clone, ele); return clone; }; /** * @private Update all of the ids in an element tree */ dwr.util._updateIds = function(ele, options) { if (options == null) options = {}; if (dwr.util._getId(ele)) { ele.setAttribute("id", ("idPrefix" in options ? options.idPrefix : "") + dwr.util._getId(ele) + ("idSuffix" in options ? options.idSuffix : "")); } var children = ele.childNodes; for (var i = 0; i < children.length; i++) { var child = children.item(i); if (child.nodeType == 1 /*Node.ELEMENT_NODE*/) { dwr.util._updateIds(child, options); } } }; /** * @private Remove all the Ids from an element */ dwr.util._removeIds = function(ele) { if (dwr.util._getId(ele)) ele.removeAttribute("id"); var children = ele.childNodes; for (var i = 0; i < children.length; i++) { var child = children.item(i); if (child.nodeType == 1 /*Node.ELEMENT_NODE*/) { dwr.util._removeIds(child); } } }; /** * Clone a template node and its embedded template child nodes according to * cardinalities (of arrays) in supplied data. */ dwr.util.cloneNodeForValues = function(templateEle, data, options) { templateEle = dwr.util._getElementById(templateEle, "cloneNodeForValues()"); if (templateEle == null) return null; if (options == null) options = {}; var idpath; if (options.idPrefix != null) idpath = options.idPrefix; else idpath = dwr.util._getId(templateEle) || ""; return dwr.util._cloneNodeForValuesRecursive(templateEle, data, idpath, options); }; /** * @private Recursive helper for cloneNodeForValues(). */ dwr.util._cloneNodeForValuesRecursive = function(templateEle, data, idpath, options) { // Incoming array -> make an id for each item and call clone of the template // for each of them if (dwr.util._isArray(data)) { var clones = []; for (var i = 0; i < data.length; i++) { var item = data[i]; var clone = dwr.util._cloneNodeForValuesRecursive(templateEle, item, idpath + "[" + i + "]", options); clones.push(clone); } return clones; } else // Incoming object (not array) -> clone the template, add id prefixes, add // clone to DOM, and then recurse into any array properties if they contain // objects and there is a suitable template if (dwr.util._isObject(data) && !dwr.util._isArray(data)) { var clone = templateEle.cloneNode(true); if (options.updateCloneStyle && clone.style) { for (var propname in options.updateCloneStyle) { clone.style[propname] = options.updateCloneStyle[propname]; } } dwr.util._replaceIds(clone, dwr.util._getId(templateEle), idpath); templateEle.parentNode.insertBefore(clone, templateEle); dwr.util._cloneSubArrays(data, idpath, options); return clone; } // It is an error to end up here so we return nothing return null; }; /** * @private Substitute a leading idpath fragment with another idpath for all * element ids tree, and remove ids that don't match the idpath. */ dwr.util._replaceIds = function(ele, oldidpath, newidpath) { var currId = dwr.util._getId(ele); if (currId) { var newId = null; if (currId == oldidpath) { newId = newidpath; } else if (currId.length > oldidpath.length) { if (currId.substr(0, oldidpath.length) == oldidpath) { var trailingChar = currId.charAt(oldidpath.length); if (trailingChar == "." || trailingChar == "[") { newId = newidpath + currId.substr(oldidpath.length); } } } if (newId) { ele.setAttribute("id", newId); } else { ele.removeAttribute("id"); } } var children = ele.childNodes; for (var i = 0; i < children.length; i++) { var child = children.item(i); if (child.nodeType == 1 /*Node.ELEMENT_NODE*/) { dwr.util._replaceIds(child, oldidpath, newidpath); } } }; /** * @private Finds arrays in supplied data and uses any corresponding template * node to make a clone for each item in the array. */ dwr.util._cloneSubArrays = function(data, idpath, options) { for (prop in data) { var value = data[prop]; // Look for potential recursive cloning in all array properties if (dwr.util._isArray(value)) { // Only arrays with objects are interesting for cloning if (value.length > 0 && dwr.util._isObject(value[0])) { var subTemplateId = idpath + "." + prop; var subTemplateEle = dwr.util.byId(subTemplateId); if (subTemplateEle != null) { dwr.util._cloneNodeForValuesRecursive(subTemplateEle, value, subTemplateId, options); } } } // Continue looking for arrays in object properties else if (dwr.util._isObject(value)) { dwr.util._cloneSubArrays(value, idpath + "." + prop, options); } } }; /** * @private Helper to turn a string into an element with an error message */ dwr.util._getElementById = function(ele, source) { var orig = ele; ele = dwr.util.byId(ele); if (ele == null) { dwr.util._debug(source + " can't find an element with id: " + orig + "."); } return ele; }; /** * @private Is the given node an HTML element (optionally of a given type)? * @param ele The element to test * @param nodeName eg "input", "textarea" - check for node name (optional) * if nodeName is an array then check all for a match. */ dwr.util._isHTMLElement = function(ele, nodeName) { if (ele == null || typeof ele != "object" || ele.nodeName == null) { return false; } if (nodeName != null) { var test = ele.nodeName.toLowerCase(); if (typeof nodeName == "string") { return test == nodeName.toLowerCase(); } if (dwr.util._isArray(nodeName)) { var match = false; for (var i = 0; i < nodeName.length && !match; i++) { if (test == nodeName[i].toLowerCase()) { match = true; } } return match; } dwr.util._debug("dwr.util._isHTMLElement was passed test node name that is neither a string or array of strings"); return false; } return true; }; /** * @private Like typeOf except that more information for an object is returned other than "object" */ dwr.util._detailedTypeOf = function(x) { var reply = typeof x; if (reply == "object") { reply = Object.prototype.toString.apply(x); // Returns "[object class]" reply = reply.substring(8, reply.length-1); // Just get the class bit } return reply; }; /** * @private Object detector. Excluding null from objects. */ dwr.util._isObject = function(data) { return (data && typeof data == "object"); }; /** * @private Array detector. Note: instanceof doesn't work with multiple frames. */ dwr.util._isArray = function(data) { return (data && Object.prototype.toString.call(data)=="[object Array]"); }; /** * @private Array like detector. Note: instanceof doesn't work with multiple frames. */ dwr.util._isArrayLike = function(data) { return data && (typeof data.length == "number") // must have .length && ((data.propertyIsEnumerable && data.propertyIsEnumerable("length")==false) || !data.constructor || data!="[object Object]") // .length must be native prop && !dwr.util._isString(data) // don't be fooled by string && !dwr.util._isFunction(data) // don't be fooled by function && !data.tagName; // don't be fooled by elements }; /** * @private String detector. */ dwr.util._isString = function(data) { return (data && (typeof data == "string" || Object.prototype.toString.call(data) == "[object String]")); }; /** * @private Function detector. */ dwr.util._isFunction = function(data) { return (data && (typeof data == "function" || Object.prototype.toString.call(data) == "[object Function]") && data != "[object NodeList]"); // need to workaround NodeList on Safari }; /** * @private Date detector. Note: instanceof doesn't work with multiple frames. */ dwr.util._isDate = function(data) { return (data && Object.prototype.toString.call(data)=="[object Date]"); }; /** * @private Used by setValue. Gets around the missing functionallity in IE. */ dwr.util._importNode = function(doc, importedNode, deep) { var newNode; if (importedNode.nodeType == 1 /*Node.ELEMENT_NODE*/) { newNode = doc.createElement(importedNode.nodeName); for (var i = 0; i < importedNode.attributes.length; i++) { var attr = importedNode.attributes[i]; if (attr.nodeValue != null && attr.nodeValue != '') { newNode.setAttribute(attr.name, attr.nodeValue); } } if (importedNode.style != null) { newNode.style.cssText = importedNode.style.cssText; } } else if (importedNode.nodeType == 3 /*Node.TEXT_NODE*/) { newNode = doc.createTextNode(importedNode.nodeValue); } if (deep && importedNode.hasChildNodes()) { for (i = 0; i < importedNode.childNodes.length; i++) { newNode.appendChild(dwr.util._importNode(doc, importedNode.childNodes[i], true)); } } return newNode; }; /** @private Used internally when some message needs to get to the programmer */ dwr.util._debug = function(message, stacktrace) { var written = false; try { if (window.console) { if (stacktrace && window.console.trace) window.console.trace(); window.console.log(message); written = true; } else if (window.opera && window.opera.postError) { window.opera.postError(message); written = true; } } catch (ex) { /* ignore */ } if (!written) { var debug = document.getElementById("dwr-debug"); if (debug) { var contents = message + "
" + debug.innerHTML; if (contents.length > 2048) contents = contents.substring(0, 2048); debug.innerHTML = contents; } } };
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