1 files changed, 0 insertions, 118 deletions
diff --git a/scripts/rz_observer.js b/scripts/rz_observer.js
deleted file mode 100644
index 4fe6385f..00000000
--- a/scripts/rz_observer.js
+++ /dev/null
@@ -1,118 +0,0 @@
-"use strict"
-
-/**
- * DOM object observers
- */
-define(
-        [],
-        function() {
-
-            var MutationObserver = window.MutationObserver;
-            // more portable version: var MutationObserver =
-            // window.MutationObserver ||
-            // window.WebKitMutationObserver;
-
-            /**
-             * observe SVG object's translate attribute (x,y values), measure
-             * change rate & invoke on_slowdown_threshold_reached() upon
-             * reaching change slowdown threshold.
-             *
-             * Caller is responsible to disconnect observer.
-             */
-            function Mutation_Handler__on_dxy_slowdown(
-                    on_slowdown_threshold_reached) {
-
-                var x_cur, y_cur, d, dx, dy, avg_d = 0;
-
-                this.on_slowdown_threshold_reached = on_slowdown_threshold_reached;
-
-                /**
-                 * handle observer mutation
-                 */
-                this.handle_mutation = function(m) {
-                    if ('transform' != m.attributeName || null == m.oldValue) {
-                        return;
-                    }
-
-                    /*
-                     * parsed txt example:
-                     * "translate(173.6007550157428,275.43228723527193)"
-                     */
-                    var rgx_m = m.oldValue.match(/\((\d+.\d+),(\d+.\d+)\)/);
-                    x_cur = rgx_m[1];
-                    y_cur = rgx_m[2];
-                    if (undefined == this.x_prv) {
-                        this.x_prv = x_cur;
-                        this.y_prv = y_cur;
-                        return;
-                    }
-                    dx = x_cur - this.x_prv;
-                    dy = y_cur - this.y_prv;
-
-                    var d = Math.sqrt(dx * dx + dy * dy);
-                    // average across last samples
-                    avg_d = (1.0 - this.most_recent_sample_weight) * avg_d
-                            + this.most_recent_sample_weight * d;
-
-                    // debug
-                    // console.log({
-                    //     'dx' : dx,
-                    //     'dy' : dy,
-                    //     'd' : d,
-                    //     'avg_d' : avg_d,
-                    // });
-
-                    if (avg_d < this.slowdown_threshold) {
-                        // slowdown threshold reached
-                        if (this.on_slowdown_threshold_reached) {
-                            this.on_slowdown_threshold_reached();
-                        }
-                    }
-
-                    this.x_prv = x_cur;
-                    this.y_prv = y_cur;
-                }
-            }
-
-            function new_Mutation_Handler__on_dxy_slowdown(
-                    on_slowdown_threshold_reached, slowdown_threshold,
-                    most_recent_sample_weight) {
-                if (undefined == slowdown_threshold) {
-                    slowdown_threshold = 0.07;
-                }
-                if (undefined == most_recent_sample_weight) {
-                    most_recent_sample_weight = 0.3;
-                }
-
-                var ret = new Mutation_Handler__on_dxy_slowdown(
-                        on_slowdown_threshold_reached);
-                ret.slowdown_threshold = slowdown_threshold;
-                ret.most_recent_sample_weight = most_recent_sample_weight;
-                return ret;
-            }
-
-            function new_MutationObserver(handler) {
-                /*
-                 * FIXME implemente with inheritence - currently triggers
-                 * 'illegal invocation', possibly due to some interaction with
-                 * requirejs
-                 */
-                // var o = new
-                // window.MutationObserver(Mutation_Observer.handler);
-                // var ret = Object.create(o);
-                // ret. = undefined;
-                // return ret;
-                var for_each_mutaion = function(m_set) {
-                    m_set.forEach(function(m) {
-                        handler.handle_mutation(m);
-                    })
-                };
-
-                return new MutationObserver(for_each_mutaion);
-            }
-
-            return {
-                new_MutationObserver : new_MutationObserver,
-                new_Mutation_Handler__on_dxy_slowdown : new_Mutation_Handler__on_dxy_slowdown,
-            };
-        });