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Diffstat (limited to 'webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/manager/object/AliasManager.js')
-rw-r--r-- | webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/manager/object/AliasManager.js | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/manager/object/AliasManager.js b/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/manager/object/AliasManager.js new file mode 100644 index 0000000000..e1247d8a81 --- /dev/null +++ b/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/manager/object/AliasManager.js @@ -0,0 +1,239 @@ +/* ************************************************************************ + + 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) + +************************************************************************ */ + +/* ************************************************************************ + +#module(core) + +************************************************************************ */ + +/** + * This singleton manage global resource aliases + * + * @event change {qx.event.type.Event} + */ +qx.OO.defineClass("qx.manager.object.AliasManager", qx.core.Target, +function() +{ + qx.core.Target.call(this); + + // Contains defined aliases (like icons/, widgets/, application/, ...) + this._aliases = {}; + + // Containes computed paths + this._uris = {}; + + // Define static alias from setting + this.add("static", this.getSetting("staticUri")); +}); + + + + + + +/* +--------------------------------------------------------------------------- + DEFAULT SETTINGS +--------------------------------------------------------------------------- +*/ + +qx.Settings.setDefault("resourceUri", "../../resource"); +qx.Settings.setDefault("staticUri", qx.Settings.getValue("resourceUri") + "/static"); + + + + + +/* +--------------------------------------------------------------------------- + ALIAS MANAGMENT +--------------------------------------------------------------------------- +*/ + +/** + * Define an alias to a resource path + * + * @param vAlias {String} alias name for the resource path/url + * @param vUriStart {String} first part of URI for all images which use this alias + */ +qx.Proto.add = function(vAlias, vUriStart) +{ + this._aliases[vAlias] = vUriStart; + + // Cleanup old uris which use this alias + for (var vPath in this._uris) + { + if (vPath.substring(0, vPath.indexOf("/")) == vAlias) { + this._uris[vPath] = null; + } + } + + // Fire change event (for ImageManager, etc.) + this.createDispatchEvent("change"); +} + +/** + * Remove a previously defined alias + * + * @param vAlias {String} alias name for the resource path/url + */ +qx.Proto.remove = function(vAlias) +{ + delete this._aliases[vAlias]; + + // Cleanup old uris which use this alias + for (var vPath in this._uris) + { + if (vPath.substring(0, vPath.indexOf("/")) == vAlias) { + this._uris[vPath] = null; + } + } + + // Fire change event (for ImageManager, etc.) + this.createDispatchEvent("change"); +} + +/** + * Resolve an alias to the actual resource path/url + * + * @param vAlias {String} alias name for the resource path/url + * @return {String} resource path/url + */ +qx.Proto.resolve = function(vAlias) { + return this._aliases[vAlias]; +} + + + + + + +/* +--------------------------------------------------------------------------- + URI HANDLING +--------------------------------------------------------------------------- +*/ + +/** + * Resolve a path name to a resource URI taking the defined aliases into account + * and cache the result. + * + * If the first part of the path is a defined alias, the alias is resolved. + * Otherwhise the path is returned unmodified. + * + * @param vPath {String} path name + * @param vForceUpdate {Boolean} (default=false) wether the cached value should be ignored + * @return {String} reolved path/url + */ +qx.Proto.resolvePath = function(vPath, vForceUpdate) +{ + var vUri = this._uris[vPath]; + + if (vUri == null) { + vUri = this._uris[vPath] = this._computePath(vPath); + } + + // this.debug("URI: " + vPath + " => " + vUri); + + return vUri; +} + + +/** + * Resolve a path name to a resource URI taking the defined aliases into account. + * + * If the first part of the path is a defined alias, the alias is resolved. + * Otherwhise the path is returned unmodified. + * + * @param vPath {String} path name + * @return {String} reolved path/url + */ +qx.Proto._computePath = function(vPath) +{ + switch(vPath.charAt(0)) + { + case "/": + case ".": + return vPath; + + default: + if ( + qx.lang.String.startsWith(vPath, qx.net.Protocol.URI_HTTP) || + qx.lang.String.startsWith(vPath, qx.net.Protocol.URI_HTTPS) || + qx.lang.String.startsWith(vPath, qx.net.Protocol.URI_FILE) + ) { + return vPath; + } + + var vAlias = vPath.substring(0, vPath.indexOf("/")); + var vResolved = this._aliases[vAlias]; + + if (vResolved != null) { + return vResolved + vPath.substring(vAlias.length); + } + + return vPath; + } +} + + + + + + + + +/* +--------------------------------------------------------------------------- + DISPOSER +--------------------------------------------------------------------------- +*/ + +/** + * Disposer + */ +qx.Proto.dispose = function() +{ + if (this.getDisposed()) { + return; + } + + this._aliases = null; + this._uris = null; + + return qx.core.Target.prototype.dispose.call(this); +} + + + + + + +/* +--------------------------------------------------------------------------- + DEFER SINGLETON INSTANCE +--------------------------------------------------------------------------- +*/ + +/** + * Singleton Instance Getter + */ +qx.Class.getInstance = qx.lang.Function.returnInstance; |