ReadMe.txt for ExtSpect

by Jim.Soper@Sencha.com

========== INTRODUCTION

Welcome to the brand new ExtSpect, a plugin inspector for Sencha Touch 2
written in Sencha Touch 2. With it you can look at the component and class
hierarchies of the app you plug it into.

NEW: Double touching a node in a tree collapses the branch. A node with hidden
children is underlined. Double touching that node expands the banch one
level down only. To expand a branch completely, press and hold the node
until it exands. This takes a long second.

ISSUES:
(1) There are problems with the look in Touch 2.2.0. Otherwise it works.
(2) ExtSpect works with touch-all.js, touch-debug.js, touch-all-debug.js,
but not with touch.js.


========== INSTALLATION

For users of the demo app, ux/extspect/ExtSpectExample, the index.html
file expects that a touch2 directory will be in a root directory.
Please make adjustments in index.html as needed.

For installation of ExtSpect as a plugin, there are several things that you
must do, and a couple more optional choices.

o Copy the /ux/extspect folder to be a sibling of your app's main folder.

o In your app.js file, or in the file that first uses Extspect, add the following:
		Ext.Loader.setPath( {
			uxExtSpect: '../ux/extspect'
		} );
This creates a namespace called uxExtSpect.
You then require 'uxExtSpect.ExtSpect' to load ExtSpect into your app.
	requires : [ 'uxExtSpect.ExtSpect' ]

You may, of course, set the path differently. Just make sure that the
extspect directory is then where setPath says it is.

o Somewhere inside the views that you build, add ExtSpect as a panel.
The ExtSpect class extends Ext.Panel, but it can also be added using the
xtype 'extspect'. There are default values for the title and iconCls, so it should
fit into a tab panel with no further work.

o There is a config property to the ExtSpect class called app:. This is required.
The variable that follows app: is the name of your app (eg. MyApp) plus .app
with no quotes. See the ExtSpectExample.

Adding ExtSpect to your top level viewport would look like this:

	Ext.Viewport.add( Ext.create( 'uxExtSpect.ExtSpect', { app : MyApp.app } ) )

As an item in a tab panel, it would look like this:

			{  xtype: 'extspect',
				app: MyApp.app
			}

For MyApp.app to load properly, you need to use sencha-touch-all.js,
sencha-touch-debug.js or sencha-touch-all-debug.js.
sencha-touch.js does not work.

The file that adds ExtSpect to a container must also declare

o Note that we also load in '/ux/extspect/resources/extspect.css'
If you set the font or font size, do so here. Extpect uses the default font size.


========== USAGE

Using ExtSpect is fairly straightforward. The 'tree panel' on the left lets you
look at the component or class hierarchy of the enclosing app. The 'object panel.
on the right shows you the current object and the various properties it contains.

Tree Panel
- Touching an object on the left displays it in the object panel on the right.
- Double touching a node in a tree collapses the branch. A node with hidden
  children is underlined. Double touching that node expands the banch one
  level down only.
- To expand a closed branch completely, press and hold the node
  until it exands. This takes a long second. Pressing and holding an
  expanded branch closes it, like double-touching.
- Double touch and holding do not work for the Ext and App panels.

Object Panel
- On the right, if the property is an 'own' property, the value appears in bold.
- If you touch a property on the right, and it contains a structured value such
  as an object or array, the object window will show you that object.
- There is no response to atomic values such as numbers or strings, nor to
  empty objects or arrays.
- Touching a property with a collection as a value bypasses the collection object
  and shows you the items in the collection.

Note that the lists do not automatically update for changes in data.
They do, however, update on a repaint. To refresh a list, flip to a
another tab, and back again.

Group Button (Touch 2.1.1 and before)
The [Group] button at the bottom attempts to group the properties according
to categories found in the property name. Properties with no identified
category are listed at the bottom, according to the datatype of their value.


========== CLASS ABBREVIATIONS

Some objects appear wrapped with braces, with letters in front of them.
Those letters indicate the name of the class the object instantiates. For
example, O{0...} is an instance of Object, and it has no properties.
A default config may show {...21p/9m}. This is an object that belongs to
no class, and has 21 properties and 9 methods. Some of the abbreviations
for classes are:

TC : TemplateClass (not documented)
App : Ext.app.Application
MC : Ext.util.MixedCollection
AMC : Ext.util.AbstractMixedCollection
IC : Ext.ItemCollection
E : Ext.dom.Element
MdlCls : a model class

DTL : DOMTokenList
HC : HTMLCollection
NL : NodeList
NNM : NamedNodeMap
RE : RegularExpression


========== util.StringOf

StringOf is a package that I developed in 2011. StringOf prints out
values in some reasonably concise yet informative way. The primary
function is StringOf.to$(). ExtSpect uses it heavily.

util.ExtSpectString handles most of the class abbreviations mentioned
above.


========== KNOWN BUGS

o The Grouping button does not work after Touch version 2.1.1

o The appearance in Touch 2.0.0 is screwed up. Works OK.

o Sorting by property names may leave some properties out of order.
This is especially true in the methods pane, when there are 400+ methods
to sort through. It helps to have enough memory.

o At this point, the ExtSpect panel does not automatically fill the all
available space. I've had to set the minHeight in ExtSpectNavigationView.js
manually in order to get something reasonable inside the 2 demo apps.
Suggestions as to how to fix this would be appreciated.