From d2d2017d118ab176c6ec44f98f5ff6f16781429f Mon Sep 17 00:00:00 2001
From: David Underhill <dgu@cs.stanford.edu>
Date: Sat, 6 Dec 2008 11:11:28 -0800
Subject: [PATCH] parent toolbars do not need to know all their possible
 children: removed that code

---
 jtoolbar.js | 68 ++++++++++-------------------------------------------
 1 file changed, 12 insertions(+), 56 deletions(-)

diff --git a/jtoolbar.js b/jtoolbar.js
index d3086c8..be18b0b 100644
--- a/jtoolbar.js
+++ b/jtoolbar.js
@@ -358,7 +358,6 @@ var JTB = function() {
 
             /* toolbar hierarchy support */
             this.tb_parent        = null;
-            this.tb_children      = [];
             this.vis_tb_child     = null;
 
             /* sizing information helpers */
@@ -684,11 +683,13 @@ var JTB = function() {
 
             /** shows a child toolbar (makes childToolbar a child if it isn't already one) */
             JTB.Toolbar.prototype.showChildToolbar = function(childToolbar, x, y) {
-                /* make sure childToolbar is one of our children */
-                if(!this.hasChildToolbar(childToolbar)) {
-                    this.addChildToolbar(childToolbar);
-                }
+                /* remove the child from any old parent */
+                childToolbar.removeFromParentToolbar(childToolbar);
+
+                /* tell the child toolbar it belongs to us now */
+                childToolbar.tb_parent = this;
 
+                /* show the child */
                 this.vis_tb_child = childToolbar;
                 this.refreshGfx();
 
@@ -700,60 +701,15 @@ var JTB = function() {
                 return this.e_content === null;
             };
 
-            /** adds a child toolbar to this toolbar */
-            JTB.Toolbar.prototype.addChildToolbar = function(childToolbar) {
-                /* remove the child from any old parent */
-                if(childToolbar.tb_parent !== null) {
-                    childToolbar.tb_parent.removeChildToolbar(childToolbar);
-                }
-
-                /* add the child toolbar to our list of toolbars */
-                this.tb_children[this.tb_children.length] = childToolbar;
-                childToolbar.tb_parent = this;
-                return this;
-            };
-
-            /** gets whether e is a child toolbar of this toolbar */
-            JTB.Toolbar.prototype.hasChildToolbar = function(e) {
-                return this.indexOfChildToolbar(e) != -1;
-            };
-
-            /** returns non-negative index if e is a child toolbar of this toolbar */
-            JTB.Toolbar.prototype.indexOfChildToolbar = function(e) {
-                var i;
-                for(i=0; i<this.tb_children.length; i++) {
-                    if(this.tb_children[i] === e) {
-                        return i;
+            /** removes a child toolbar from its parent */
+            JTB.Toolbar.prototype.removeFromParentToolbar = function(e) {
+                if(e.tb_parent !== null) {
+                    if(e.tb_parent.vis_tb_child == e) {
+                        e.tb_parent.vis_tb_child = null;
+                        e.tb_parent.refreshGfx();
                     }
-                }
-
-                return -1;
-            };
-
-            /** removes a child toolbar */
-            JTB.Toolbar.prototype.removeChildToolbar = function(e) {
-                var i = this.indexOfChildToolbar(e);
-                if(i >= 0) {
-                    var container = this.getContainer();
-                    if(container !== null) {
-                        container.removeChild(e);
-                    }
-
-                    if(this.vis_tb_child == e) {
-                        this.vis_tb_child = null;
-                    }
-
                     e.tb_parent = null;
-
-                    var j;
-                    for(j=i; j<this.tb_children.length-1; j++) {
-                        this.tb_children[j] = this.tb_children[j+1];
-                    }
-                    this.tb_children.length -= 1;
-
-                    this.refreshGfx();
                 }
-                return this;
             };
 
             /** get the location of the toolbar on its parent */