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@@ -0,0 +1,66 @@
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+// Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved.
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+//
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+// This library is free software; you can redistribute it and/or
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+// modify it under the terms of the GNU General Public
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+// License as published by the Free Software Foundation; either
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+// version 2.1 of the License, or (at your option) any later version.
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+//
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+// This library is distributed in the hope that it will be useful,
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+// but WITHOUT ANY WARRANTY; without even the implied warranty of
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+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+// General Public License for more details.
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+//
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+// You should have received a copy of the GNU General Public License
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+// along with this library; if not, write to the Free Software
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+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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+// MA 02110-1301 USA
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+
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+var ethx = {
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+ prototype: Object,
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+
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+ watch: function(options) {
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+ return new Filter(options);
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+ },
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+
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+ note: function() {
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+ var args = Array.prototype.slice.call(arguments, 0);
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+ var o = []
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+ for(var i = 0; i < args.length; i++) {
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+ o.push(args[i].toString())
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+ }
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+
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+ eth.notef(o);
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+ },
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+};
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+
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+var Filter = function(options) {
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+ this.callbacks = [];
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+ this.options = options;
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+
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+ if(options === "chain") {
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+ this.id = eth.newFilterString(options);
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+ } else if(typeof options === "object") {
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+ this.id = eth.newFilter(options);
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+ }
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+};
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+
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+Filter.prototype.changed = function(callback) {
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+ this.callbacks.push(callback);
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+
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+ var self = this;
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+ messages.connect(function(messages, id) {
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+ if(id == self.id) {
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+ for(var i = 0; i < self.callbacks.length; i++) {
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+ self.callbacks[i].call(self, messages);
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+ }
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+ }
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+ });
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+};
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+
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+Filter.prototype.uninstall = function() {
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+ eth.uninstallFilter(this.id)
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+}
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+
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+Filter.prototype.messages = function() {
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+ return eth.messages(this.id)
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+}
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