diff options
Diffstat (limited to 'webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/util/StringBuilder.js')
-rw-r--r-- | webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/util/StringBuilder.js | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/util/StringBuilder.js b/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/util/StringBuilder.js new file mode 100644 index 0000000000..25e962a459 --- /dev/null +++ b/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/util/StringBuilder.js @@ -0,0 +1,148 @@ +/* ************************************************************************ + + qooxdoo - the new era of web development + + http://qooxdoo.org + + Copyright: + 2004-2007 1&1 Internet AG, Germany, http://www.1and1.org + + License: + LGPL: http://www.gnu.org/licenses/lgpl.html + EPL: http://www.eclipse.org/org/documents/epl-v10.php + See the LICENSE file in the project's top-level directory for details. + + Authors: + * Sebastian Werner (wpbasti) + * Andreas Ecker (ecker) + +************************************************************************ */ + +/* ************************************************************************ + +#require(qx.core.Client) + +************************************************************************ */ + +/** + * A string builder class + * <p> + * += operator is faster in Firefox and Opera. + * Array push/join is faster in Internet Explorer + * </p><p> + * Even with this wrapper, which costs some time, this is + * faster in Firefox than the alternative Array concat in + * all browsers (which is in relation to IE's performance issues + * only marginal). The IE performance loss caused by this + * wrapper is not relevant. + * </p><p> + * So this class seems to be the best compromise to handle + * string concatenation.</p> + */ +qx.OO.defineClass("qx.util.StringBuilder", qx.core.Object, +function() +{ + qx.core.Object.call(this); + + this.init(); + this.add.apply(this, arguments); +}); + + +/** + * Resets the contents of the Stringbuilder + * equivalent to <pre>str = ""; </pre> + */ +qx.Proto.clear = function() {} + +/** + * Returns the contents of the concatenated string + * + * @return {String} string content + */ +qx.Proto.get = function() {} + +/** + * Append a variable number of string arguments + * + * @param varargs {String} variable number os strings to be added + */ +qx.Proto.add = function(varargs) {} + +/** + * Initializes the contents of the Stringbuilder + * equivalent to <pre>str = ""; </pre> + */ +qx.Proto.init = function() {} + +/** Destructor */ +qx.Proto.dispose = function() {} + +/** + * Returns the contents of the concatenated string + * + * @return {String} string content + */ +qx.Proto.toString = function() {} + + +if (qx.core.Client.getInstance().isMshtml()) +{ + qx.Proto.clear = function() { + this._array = []; + } + + qx.Proto.get = function() { + return this._array.join(""); + } + + qx.Proto.add = function() { + this._array.push.apply(this._array, arguments); + } + + qx.Proto.init = function() { + this._array = []; + } + + qx.Proto.dispose = function() + { + if (this.getDisposed()) { + return; + } + + this._array = null; + + qx.core.Object.prototype.dispose.call(this); + } +} +else +{ + qx.Proto.clear = function() { + this._string = ""; + } + + qx.Proto.get = function() { + return this._string; + } + + qx.Proto.add = function() { + this._string += Array.prototype.join.call(arguments, ""); + } + + qx.Proto.init = function() { + this._string = ""; + } + + qx.Proto.dispose = function() + { + if (this.getDisposed()) { + return; + } + + this._string = null; + + qx.core.Object.prototype.dispose.call(this); + } +} + +qx.Proto.toString = qx.Proto.get; |