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Diffstat (limited to 'infrastructure/ace/www/ace2_common.js')
-rw-r--r-- | infrastructure/ace/www/ace2_common.js | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/infrastructure/ace/www/ace2_common.js b/infrastructure/ace/www/ace2_common.js new file mode 100644 index 0000000..4a08de6 --- /dev/null +++ b/infrastructure/ace/www/ace2_common.js @@ -0,0 +1,115 @@ +/** + * Copyright 2009 Google Inc. + * + * 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. + */ + + +function isNodeText(node) { + return (node.nodeType == 3); +} + +function object(o) { + var f = function() {}; + f.prototype = o; + return new f(); +} + +function extend(obj, props) { + for(var p in props) { + obj[p] = props[p]; + } + return obj; +} + +function forEach(array, func) { + for(var i=0;i<array.length;i++) { + var result = func(array[i], i); + if (result) break; + } +} + +function map(array, func) { + var result = []; + // must remain compatible with "arguments" pseudo-array + for(var i=0;i<array.length;i++) { + if (func) result.push(func(array[i], i)); + else result.push(array[i]); + } + return result; +} + +function filter(array, func) { + var result = []; + // must remain compatible with "arguments" pseudo-array + for(var i=0;i<array.length;i++) { + if (func(array[i], i)) result.push(array[i]); + } + return result; +} + +function isArray(testObject) { + return testObject && typeof testObject === 'object' && + !(testObject.propertyIsEnumerable('length')) && + typeof testObject.length === 'number'; +} + +// Figure out what browser is being used (stolen from jquery 1.2.1) +var userAgent = navigator.userAgent.toLowerCase(); +var browser = { + version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1], + safari: /webkit/.test(userAgent), + opera: /opera/.test(userAgent), + msie: /msie/.test(userAgent) && !/opera/.test(userAgent), + mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent), + windows: /windows/.test(userAgent) // dgreensp +}; + +function getAssoc(obj, name) { + return obj["_magicdom_"+name]; +} + +function setAssoc(obj, name, value) { + // note that in IE designMode, properties of a node can get + // copied to new nodes that are spawned during editing; also, + // properties representable in HTML text can survive copy-and-paste + obj["_magicdom_"+name] = value; +} + +// "func" is a function over 0..(numItems-1) that is monotonically +// "increasing" with index (false, then true). Finds the boundary +// between false and true, a number between 0 and numItems inclusive. +function binarySearch(numItems, func) { + if (numItems < 1) return 0; + if (func(0)) return 0; + if (! func(numItems-1)) return numItems; + var low = 0; // func(low) is always false + var high = numItems-1; // func(high) is always true + while ((high - low) > 1) { + var x = Math.floor((low+high)/2); // x != low, x != high + if (func(x)) high = x; + else low = x; + } + return high; +} + +function binarySearchInfinite(expectedLength, func) { + var i = 0; + while (!func(i)) i += expectedLength; + return binarySearch(i, func); +} + +function htmlPrettyEscape(str) { + return str.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>') + .replace(/\r?\n/g, '\\n'); +} |