forked from extern/egroupware
595 lines
12 KiB
JavaScript
595 lines
12 KiB
JavaScript
/**
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* eGroupWare eTemplate2 - JS Widget base class
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Andreas Stöckel
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* @copyright Stylite 2011
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* @version $Id$
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*/
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/**
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* IE Fix for array.indexOf
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*/
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if (typeof Array.prototype.indexOf == "undefined")
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{
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Array.prototype.indexOf = function(_elem) {
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for (var i = 0; i < this.length; i++)
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{
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if (this[i] === _elem)
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return i;
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}
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return -1;
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};
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}
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/**
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* ET2_DEBUGLEVEL specifies which messages are printed to the console. Decrease
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* the value of ET2_DEBUGLEVEL to get less messages.
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*/
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var ET2_DEBUGLEVEL = 4;
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function et2_debug(_level)
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{
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if (typeof console != "undefined")
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{
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// Get the passed parameters and remove the first entry
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var args = [];
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for (var i = 1; i < arguments.length; i++)
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{
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args.push(arguments[i]);
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}
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if (_level == "log" && ET2_DEBUGLEVEL >= 4 &&
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typeof console.log == "function")
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{
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console.log.apply(console, args);
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}
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if (_level == "info" && ET2_DEBUGLEVEL >= 3 &&
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typeof console.info == "function")
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{
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console.info.apply(console, args);
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}
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if (_level == "warn" && ET2_DEBUGLEVEL >= 2 &&
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typeof console.warn == "function")
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{
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console.warn.apply(console, args);
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}
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if (_level == "error" && ET2_DEBUGLEVEL >= 1 &&
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typeof console.error == "function")
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{
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console.error.apply(console, args);
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}
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}
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}
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/**
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* Array with all types supported by the et2_checkType function.
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*/
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var et2_validTypes = ["boolean", "string", "float", "integer", "any", "js", "dimension"];
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/**
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* Object whith default values for the above types. Do not specify array or
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* objects inside the et2_typeDefaults object, as this instance will be shared
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* between all users of it.
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*/
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var et2_typeDefaults = {
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"boolean": false,
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"string": "",
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"js": null,
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"float": 0.0,
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"integer": 0,
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"any": null,
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"dimension": "auto"
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};
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function et2_evalBool(_val)
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{
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if (typeof _val == "string")
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{
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if (_val == "false")
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{
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return false;
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}
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}
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return _val ? true : false;
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}
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/**
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* Checks whether the given value is of the given type. Strings are converted
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* into the corresponding type. The (converted) value is returned. All supported
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* types are listed in the et2_validTypes array.
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*/
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function et2_checkType(_val, _type, _attr)
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{
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if (typeof _attr == "undefined")
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{
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_attr = null;
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}
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function _err() {
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var res = et2_typeDefaults[_type];
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et2_debug("warn", "'" + _val + "' was not of specified _type '" +
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_type + (_attr != null ? "' for attribute '" + _attr + "' " : "") +
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"and is now '" + res + "'");
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return res;
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}
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// If the type is "any" simply return the value again
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if (_type == "any")
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{
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return _val;
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}
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// If the type is boolean, check whether the given value is exactly true or
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// false. Otherwise check whether the value is the string "true" or "false".
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if (_type == "boolean")
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{
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if (_val === true || _val === false)
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{
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return _val;
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}
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if (typeof _val == "string")
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{
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var lcv = _val.toLowerCase();
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if (lcv === "true" || lcv === "false" || lcv === "")
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{
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return _val === "true";
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}
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}
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return _err();
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}
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if (_type == "js")
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{
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// Handle the default case
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if (_val === null)
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{
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return null;
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}
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if (_val instanceof Function)
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{
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return _val;
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}
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// Create a new function containing the code
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if (typeof _val == "string")
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{
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if (_val !== "")
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{
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// TODO: Parse JS code properly
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try
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{
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return new Function(_val);
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}
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catch(e)
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{
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et2_debug("error", "Error while parsing JS event handler code", e);
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}
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}
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return null;
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}
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return _err();
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}
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// Check whether the given value is of the type "string"
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if (_type == "string")
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{
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if (typeof _val == "string")
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{
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return _val;
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}
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return _err();
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}
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// Check whether the value is already a number, otherwise try to convert it
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// to one.
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if (_type == "float")
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{
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if (typeof _val == "number")
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{
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return _val;
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}
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if (!isNaN(_val))
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{
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return parseFloat(_val);
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}
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return _err();
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}
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// Check whether the value is an integer by comparing the result of
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// parseInt(_val) to the value itself.
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if (_type == "integer")
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{
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if (parseInt(_val) == _val)
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{
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return parseInt(_val);
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}
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return _err();
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}
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// Parse the given dimension value
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if (_type == "dimension")
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{
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// Case 1: The value is "auto"
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if (_val == "auto")
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{
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return _val;
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}
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// Case 2: The value is simply a number, attach "px"
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if (!isNaN(_val))
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{
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return parseFloat(_val) + "px";
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}
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// Case 3: The value is already a valid css pixel value or a percentage
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if (typeof _val == "string" &&
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((_val.indexOf("px") == _val.length - 2 && !isNaN(_val.split("px")[0])) ||
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(_val.indexOf("%") == _val.length - 1 && !isNaN(_val.split("%")[0]))))
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{
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return _val;
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}
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return _err();
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}
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// We should never come here
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throw("Invalid type identifier supplied.");
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}
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/**
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* If et2_no_init is set as default value, the initAttributes function will not
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* try to initialize the attribute with the default value.
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*/
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var et2_no_init = new Object();
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/**
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* Validates the given attribute with the given id. The validation checks for
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* the existance of a human name, a description, a type and a default value.
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* If the human name defaults to the given id, the description defaults to an
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* empty string, the type defaults to any and the default to the corresponding
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* type default.
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*/
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function et2_validateAttrib(_id, _attrib)
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{
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// Default ignore to false.
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if (typeof _attrib["ignore"] == "undefined")
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{
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_attrib["ignore"] = false
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}
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// Break if "ignore" is set to true.
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if (_attrib.ignore)
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{
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return;
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}
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if (typeof _attrib["name"] == "undefined")
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{
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_attrib["name"] = _id;
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et2_debug("log", "Human name ('name'-Field) for attribute '" +
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_id + "' has not been supplied, set to '" + _id + "'");
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}
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if (typeof _attrib["description"] == "undefined")
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{
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_attrib["description"] = "";
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et2_debug("log", "Description for attribute '" +
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_id + "' has not been supplied");
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}
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if (typeof _attrib["type"] == "undefined")
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{
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_attrib["type"] = "any";
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}
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else
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{
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if (et2_validTypes.indexOf(_attrib["type"]) < 0)
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{
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et2_debug("error", "Invalid type for attribute '" + _id +
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"' supplied.");
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}
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}
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// Set the defaults
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if (typeof _attrib["default"] == "undefined")
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{
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_attrib["default"] = et2_typeDefaults[_attrib["type"]];
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}
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}
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/**
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* Equivalent to the PHP array_values function
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*/
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function et2_arrayValues(_arr)
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{
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var result = [];
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for (var key in _arr)
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{
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if (parseInt(key) == key)
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{
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result.push(_arr[key]);
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}
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}
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return result;
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}
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/**
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* Equivalent to the PHP substr function, partly take from phpjs, licensed under
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* the GPL.
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*/
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function et2_substr (str, start, len) {
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var end = str.length;
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if (start < 0)
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{
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start += end;
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}
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end = typeof len === 'undefined' ? end : (len < 0 ? len + end : len + start);
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return start >= str.length || start < 0 || start > end ? "" : str.slice(start, end);
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}
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/**
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* Split a $delimiter-separated options string, which can contain parts with
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* delimiters enclosed in $enclosure. Ported from class.boetemplate.inc.php
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*
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* Examples:
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* - et2_csvSplit('"1,2,3",2,3') === array('1,2,3','2','3')
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* - et2_csvSplit('1,2,3',2) === array('1','2,3')
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* - et2_csvSplit('"1,2,3",2,3',2) === array('1,2,3','2,3')
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* - et2_csvSplit('"a""b,c",d') === array('a"b,c','d') // to escape enclosures double them!
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*
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* @param string _str
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* @param int _num=null in how many parts to split maximal, parts over this
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* number end up (unseparated) in the last part
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* @param string _delimiter=','
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* @param string _enclosure='"'
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* @return array
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*/
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function et2_csvSplit(_str, _num, _delimiter, _enclosure)
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{
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// Default the parameters
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if (typeof _num == "undefined")
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{
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_num = null;
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}
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if (typeof _delimiter == "undefined")
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{
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_delimiter = ",";
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}
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if (typeof _enclosure == "undefined")
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{
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_enclosure = '"';
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}
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// If the _enclosure string does not occur in the string, simply use the
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// split function
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if (_str.indexOf(_enclosure) == -1)
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{
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return _num === null ? _str.split(_delimiter) :
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_str.split(_delimiter, _num);
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}
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// Split the string at the delimiter and join it again, when a enclosure is
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// found at the beginning/end of a part
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var parts = _str.split(_delimiter);
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for (var n = 0; typeof parts[n] != "undefined"; n++)
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{
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var part = parts[n];
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if (part.charAt(0) === _enclosure)
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{
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var m = n;
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while (typeof parts[m + 1] != "undefined" && parts[n].substr(-1) !== _enclosure)
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{
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parts[n] += _delimiter + parts[++m];
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delete(parts[m]);
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}
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parts[n] = et2_substr(parts[n].replace(
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new RegExp(_enclosure + _enclosure, 'g'), _enclosure), 1 , -1);
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n = m;
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}
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}
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// Rebuild the array index
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parts = et2_arrayValues(parts);
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// Limit the parts to the given number
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if (_num !== null && _num > 0 && _num < parts.length && parts.length > 0)
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{
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parts[_num - 1] = parts.slice(_num - 1, parts.length).join(_delimiter);
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parts = parts.slice(0, _num);
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}
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return parts;
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}
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/**
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* Parses the given string and returns an array marking parts which are URLs
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*/
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function et2_activateLinks(_content)
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{
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var _match = false;
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var arr = [];
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function _splitPush(_matches, _proc)
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{
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if (_matches)
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{
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// We had a match
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_match = true;
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// Replace "undefined" with ""
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for (var i = 1; i < _matches.length; i++)
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{
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if (typeof _matches[i] == "undefined")
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{
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_matches[i] = "";
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}
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}
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// Split the content string at the given position
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var splitted = _content.split(_matches[0], 2);
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// Push the not-matched part
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if (splitted[0])
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{
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// activate the links of the left string
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arr = arr.concat(et2_activateLinks(splitted[0]));
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}
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// Call the callback function which converts the matches into an object
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// and appends it to the string
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_proc(_matches);
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// Set the new working string to the right part
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_content = splitted[1];
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}
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}
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var mail_regExp = /mailto:([a-z0-9._-]+)@([a-z0-9_-]+)\.([a-z0-9._-]+)/i;
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// First match things beginning with http:// (or other protocols)
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var protocol = '(http:\\/\\/|(ftp:\\/\\/|https:\\/\\/))'; // only http:// gets removed, other protocolls are shown
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var domain = '([\\w-]+\\.[\\w-.]+)';
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var subdir = '([\\w\\-\\.,@?^=%&;:\\/~\\+#]*[\\w\\-\\@?^=%&\\/~\\+#])?';
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var http_regExp = new RegExp(protocol + domain + subdir, 'i');
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// Now match things beginning with www.
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var domain = 'www(\\.[\\w-.]+)';
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var subdir = '([\\w\\-\\.,@?^=%&:\\/~\\+#]*[\\w\\-\\@?^=%&\\/~\\+#])?';
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var www_regExp = new RegExp(domain + subdir, 'i');
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do {
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_match = false;
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// Abort if the remaining length of _content is smaller than 20 for
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// performance reasons
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if (!_content)
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{
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break;
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}
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// No need make emailaddress spam-save, as it gets dynamically created
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_splitPush(_content.match(mail_regExp), function(_matches) {
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arr.push({
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"href": _matches[0],
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"text": _matches[1] + "@" + _matches[2] + "." + _matches[3]
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});
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});
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// Create hrefs for links starting with "http://"
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_splitPush(_content.match(http_regExp), function(_matches) {
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arr.push({
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"href": _matches[0],
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"text": _matches[2] + _matches[3] + _matches[4]
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});
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});
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// Create hrefs for links starting with "www."
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_splitPush(_content.match(www_regExp), function(_matches) {
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arr.push({
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"href": "http://" + _matches[0],
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"text": _matches[0]
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});
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});
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} while (_match)
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arr.push(_content);
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return arr;
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}
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/**
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* Inserts the structure generated by et2_activateLinks into the given DOM-Node
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*/
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function et2_insertLinkText(_text, _node, _target)
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{
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for (var i = 0; i < _text.length; i++)
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{
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var s = _text[i];
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if (typeof s == "string")
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{
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_node.appendChild(document.createTextNode(s));
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}
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else
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{
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var a = $j(document.createElement("a"))
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.attr("href", s.href)
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.text(s.text);
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if (typeof _target != "undefined" && _target && _target != "_self")
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{
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a.attr("target", _target);
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}
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a.appendTo(_node);
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}
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}
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}
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/**
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* Creates a copy of the given object (non recursive)
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*/
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function et2_cloneObject(_obj)
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{
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var result = {};
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for (var key in _obj)
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{
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result[key] = _obj[key];
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}
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return result;
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}
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/**
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* Returns true if the given array of nodes or their children contains the given
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* child node.
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*/
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function et2_hasChild(_nodes, _child)
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{
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for (var i = 0; i < _nodes.length; i++)
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{
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if (_nodes[i] == _child)
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{
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return true;
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}
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else if (_nodes[i].childNodes)
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{
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var res = et2_hasChild(_nodes[i].childNodes, _child);
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if (res)
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{
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return true;
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}
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}
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}
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return false;
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}
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