Commit graph

103 commits

Author SHA1 Message Date
Inez Korczyński 57317e2327 Use our own collection of constant to key code. The one based on w3c is not reliable.
Also, for next few months, please don't mention w3c when I'm around.

Change-Id: I4c8577ae50c16b177dbe370a0deac0d3272e9a06
2013-05-23 16:39:01 -07:00
jenkins-bot ba5dd768a7 Merge "Fix value for DOM_VK_DELETE" 2013-05-23 19:35:13 +00:00
Ed Sanders 181fb4d920 Fix value for DOM_VK_DELETE
The spec you link to appears to not correlate to the real world.
Firefox has a value of 0x2E (46 in decimal) store for this, and
both FF & Chrome report that value in my tests.

Change-Id: I4b0d4d27448587ca7381c640d6d3949402305656
2013-05-23 18:57:27 +02:00
Inez Korczyński f29fa6ec88 Added comment to explain better what ve.Keys is.
Change-Id: I9c9b181c4ddbaa0a32e419726fc91b6ae8db7b2a
2013-05-22 13:19:45 -07:00
Christian Williams d0dbc395a5 Remove native KeyEvent
Relying on any native implementation of window.KeyEvent is
unreliable. The two specs listed in the comments for this method
are not the same and Firefox now has DOM_VK_ENTER and
DOM_VK_RETURN which are equivalent to 13 and 14 respectively.
The key on the right side of my home row triggers 14 using
native window.KeyEvent in Firefox, where Chrome uses our
defined constants and returns 13. This fix ensures the same
values for all browsers.

Change-Id: I12b2f5d674bdf13526577cb81d0505b608f2846c
2013-05-22 12:52:31 -07:00
Trevor Parscal a56e795f58 ve.Editor
Objectives:

* Split ve.Surface into ve.Editor and ve.ui.Surface
* Move actions, triggers and commands to ve.ui
* Move toolbar wrapping, floating, shadow and actions functionality to configurable options of ve.ui.Toolbar
* Make ve.ce.Surface and ve.ui.Surface inherit ve.Element and use this.$$ for iframe friendliness
* Make the toolbar separately initialized so it's possible to have a surface without one, as well as control where the toolbar is

Some change notes:

VisualEditor.php
* Added standalone module for mediawiki integrated unit testing

ve.ce.Surface.js
* Remove requirement to pass in an attached container to construct object
* Inherit ve.Element and use this.$$ instead of $
* Make getSelectionRect iframe friendly
* Move most of the initialize stuff to a new initialize method to be called after the surface is attached to the DOM

ve.init.mw.ViewPageTarget.js
* Merge toolbar functions into setup/teardown methods
* Add toolbar manually (since it's not added by the surface anymore)

ve.init.sa.Target.js
* Update new init procedure for editor, surface and toolbar separately
* Move toolbar floating stuff to ve.Toolbar

Change-Id: If91a9d6e76a8be8d1b5a2566394765a37d29a8a7
2013-05-15 10:39:12 -07:00
Trevor Parscal c2defc9783 ve.Element refactor
Objectives:

* Move ve.ui.Element to ve.Element
* Make CE nodes inherit from ve.Element

Changes:

ve.ui.Element.js, ve.Element.js
* Move and rename
* Move ve.ui.get$$ to ve.Element.static.get$$
* Add static getDocument and getWindow methods
* Add instance getElementDocument and getElementWindow methods
* Add getTagName method, which by default reads the static tagName property, but when overridden can return a tag name based on other factors

*.php
* Updated file link

ve.ce.*Annotation.js, ve.ce.*Node.js, ve.ce.View.js, ve.ce.Document
* Added config options pass through
* Replaced passing elements through constructor with defining static tag names
* Added getTagName overrides where needed that derive tag name from model
* Refactore dom wrapper methods, now consistently using getTagName

ve.ce.Surface.js
* Removed static initialization (not needed)

ve.dm.Model.js, ve.ui.Window.js
* Added missing docs

ve.ui.GroupElement.js, ve.ui.Layout.js, ve.ui.Widget.js,
* Updated class name for elements

ve.ui.Frame.js, ve.ui.LookupInputWidget.js
* Updated location of get$$

ve.ui.js
* Move get$$ to ve.Element

ve.js
* Add auto-init of static properties to mixinClass

Change-Id: I39ae14966456903728e4d9e53f806ddce9ca2b70
2013-05-14 19:47:32 +00:00
Ed Sanders 634947198a Use consistent capitalisation of Html
If the previous commit properInnerHTML was renamed to
properInnerHtml, but its invocations weren't (a bug).
While DOM uses .innerHTML we use Html throughout the
rest of our code so we should be consistent either way.

Change-Id: If46bb256e938a097951c159b7a278667fd8e06a6
2013-05-11 13:04:00 +01:00
Catrope 606baacc1b Add ve.properOuterHtml
Like ve.properInnerHtml but for outerHTML. Factored out the shared code
into ve.fixupPreBug.

Change-Id: I5c5b6d017936c6c2e71631fb8859ba1dbd95615a
2013-05-10 17:03:04 -07:00
Inez Korczyński b32b5702d4 (bug 48022) Ignore certain function keys in key press handler
This is a temporary solution that still may some function keys go through.

Change-Id: I7a8d6c474ecca5af02b72b6453c900ed61acea58
2013-05-10 13:51:23 -07:00
Ed Sanders 4a4cf34a86 Convert DOM elements to stringifiable objects for reporting
We already do this in unit test so moving getDomElementSummary
and convertDomElements from ve.qunit.js to ve.js.

Apply ve.convertDomElements to report data before serialising.

Bug: 47948
Change-Id: Id807ccc6ff31d063be815ed4988cb35684adb76a
2013-05-08 14:42:43 +01:00
Timo Tijhof 36e29c12f6 ve.test: Import K-JS test suite for object utilities
We've housed these utilities for a while and changed some of
them quite a bit. Importing them to avoid regressions and
ensure we keep them in sync with our fork of it.

Removed references back through `@source`. They are sufficiently
different that the reference no longer adds any value.

Imported from https://github.com/Krinkle/K-js/blob/v0.1.2/test/K.test.js.

Change-Id: I9e71297246b7c248c1f032ba6b6ae1123519f3c1
2013-05-08 02:13:16 +02:00
Timo Tijhof a631af342d ve.isMixedIn: Fix bugs and add unit tests
* It returned undefined instead of false if the subject
  didn't have a 'mixins' property. This is because '&&'
  is a DEFAULT operator, not an AND operator, it returns the
  value, not a boolean per se.
* The logic of traversing to the constructor property was
  broken since all objects in javascript have a constructor
  property, and functions/constructors are also objects.

Follows-up Ic3e4472b9e694.

Change-Id: I462e7ce270c8cfc7e1970e359894ee4b7d90b881
2013-05-07 19:44:55 +00:00
Ed Sanders 830de420e1 Code style fixes
* "function(" -> "function ("
* "{String}" -> "{string}"
* collapse unintentional double spaces

Change-Id: I3ce3f02d1e31d4797b44e04d28457dec363be296
2013-05-06 12:36:52 +01:00
MatmaRex 23102fdc19 Make loading VE work on Opera again
Once more, with feeling. The first reverted attempt was I90ea547c.

Detailed comments inside.

Change-Id: I1ab60665987614e5757e2b108d614b680321d8eb
2013-04-30 14:36:47 +02:00
jenkins-bot 619f5209f2 Merge "Revert "Redo ve.createDocumentFromHTML() properly"" 2013-04-30 00:32:40 +00:00
jenkins-bot 8e24547c27 Merge "Use duck typing instead of instanceof Node" 2013-04-30 00:30:45 +00:00
Catrope c5af2fcbce Revert "Redo ve.createDocumentFromHTML() properly"
Completely breaks in Firefox

This reverts commit 7287c80293

Change-Id: I1c34842e156fd5668aac097ba6dd80201e54ecca
2013-04-29 17:24:46 -07:00
Roan Kattouw 43ea9a42d8 Use duck typing instead of instanceof Node
instanceof Node doesn't work with nodes generated by the iframe hack
for some reason. Instead, use duck typing by checking for a .cloneNode
method.

>>> ve.createDocumentFromHTML('<body><tt>Foo</tt></body>').body.childNodes[0]
<tt>Foo</tt>
>>> ve.createDocumentFromHTML('<body><tt>Foo</tt></body>').body.childNodes[0] instanceof Node
false

Change-Id: I1ea1253bd204d1070cd01b666b8a90f1cb7e5e14
2013-04-29 17:24:41 -07:00
Trevor Parscal 27287188ac Fixed docs
Wrong param type.
<pre> tags quoted to avoid jsduck warning.

Change-Id: Ieb9b5527ea69c8f02a175d29c1534290f85ba032
2013-04-29 21:58:51 +00:00
Ed Sanders cddb3f1b39 AlienNode stores original DOM elements instead of HTML
As jQuery hash problems in some cases converting HTML, it is
easier just to store the original DOM elements.

The bulk of this commit is fixing the tests as although we have an
assertion for comparing DOM elements, we don't have one for comparing
objects or arrays which may contain DOM elements.

ve.js
* copyObject & copyArray fixed to run cloneNode(true) on any item
  of type Node.
* Added callback function so an object/array can be copied with
  modifications.

ve.qunit.js
* Added deepEqualWithDomElements: Using the new copyObect/Array
  callback, we can copy the incoming object and convert any nodes
  to node summaries, then just run the normal deep equal comparison.

ve.dm.AlienNodes.js
* Instead of storing HMTL we store cloned DOM elements which we can
  send straight back to the converter without any processing.

ve.dm.example.js
* Updated tests to expect DOM elements instead of HTML.

ve.dm.Converter.test.js
* Updated tests to use deepEqualWithDomElements

Bug: 47737
Change-Id: I3df8f49b170c31da9610129d53cf8cb65dd5d5f8
2013-04-27 21:04:58 +00:00
jenkins-bot b010e491bc Merge "Stop dropping properties in copyObject/copyArray" 2013-04-26 23:28:02 +00:00
Catrope 2656dbf445 Stop dropping properties in copyObject/copyArray
Previously, if we didn't know about a property type we would just drop it.
This led to various fixes to add support for booleans, nulls, etc. We're
now having problems again, this time with functions not being copied.

So instead of only copying types we know how to copy, deep clone the ones
we know how to and shallow copy the ones we don't know about. This seems
like a saner approach to me. Besides, it doesn't seem like cloning a
function is even possible in JS.

Change-Id: Idd1546ce3a43087a8b96a37101431e466e02f04f
2013-04-26 15:41:56 -07:00
jenkins-bot 8c10bfd7de Merge "Redo ve.createDocumentFromHTML() properly" 2013-04-26 19:45:25 +00:00
MatmaRex 7287c80293 Redo ve.createDocumentFromHTML() properly
Redone using document.implementation.createHTMLDocument instead of the
iframe trick. It's supported by all browsers we target, including IE9.

This also makes VE work on Opera using a nasty hack.
* Previously, for reasons I'm not even trying to understand, Opera
  would sometimes return an empty generic object from
  ve.createDocumentFromHTML() - but only if you weren't debugging it
  (Dragonfly was disabled). I have no idea what is it about the iframe
  hack that makes it not like it, but fact is, it doesn't work.
* Calling .open(), .write() or .close() on the document returned by
  document.implementation.createHTMLDocument acts as if it was
  window.document - that is, the entire contents of the web page are
  replaced with new ones. That's probably a one-word bug somewhere
  deep in Opera's innards; I reported it (it got the identifier
  DSK-384486). Until it gets fixed, we work around it by using
  document.documentElement.innerHTML, which works reliably.

Change-Id: I90ea547c735edaba9f7ecb8f685351ac6499c53e
2013-04-25 20:08:21 +02:00
Trevor Parscal 898866a598 Mixin tracking
Change-Id: Ic3e4472b9e69458f0797c17f72dbcd2ec5267893
2013-04-24 12:45:53 -07:00
MatmaRex f4d28243a2 Minor logic fix in ve.createDocumentFromHTML()
iframe.contentDocument doesn't seem to have a key called 'document' at
all; I assume a different nesting was intended.

Change-Id: Ia37e3719d5247408bac2dfad1717d9193fb84c06
2013-04-23 00:41:41 +02:00
jenkins-bot e7fb5d9cce Merge "AnnotationSet optimisations." 2013-04-22 21:20:15 +00:00
Catrope 3848c3f220 Factor the <pre> newline hack out of the converter into ve.properInnerHTML()
Also add detection for whether the browser is actually broken (most are,
but some, like Opera, aren't), treat <textarea> and <listing> in addition
to <pre>, and fix a bug where the function would crash if the <pre> was
empty (because .firstChild was undefined/null).

Change-Id: I541b57e9fd5c9c42d19d0a59f6e29fb43d35c9b6
2013-04-22 20:09:52 +01:00
Ed Sanders 1998496e49 AnnotationSet optimisations.
addSet:
* Instead of indexing items in the store, just union the indexStore arrays

removeSet/removeNotInSet:
* difference or intersect the indexStore arrays

filter:
* push indices into the result set instead of values

simpleArrayUnion/Intersect/Difference have been created as utilities
in ve. They are prefixed 'simple' because they use object keys to
do fast in-array comparisons. This means they are limited to string
values or values which will compare as strings (e.g. numbers).

Change-Id: I079cbdfece4f6d80ec0afd61959913f13217fcb3
2013-04-22 19:37:19 +01:00
Ed Sanders 93bbe93829 Fix for custom hash with keys in different order
Instead of returning val when a custom hash is found,
feed it back into val and let the object sorting take
place if required.

Bug: 46895
Change-Id: I6a9b42facd97fbf49042d3a082121ec93659b9f1
2013-04-09 00:20:44 +01:00
Ed Sanders 277c4f6c28 Change custom .getHash functions to .getHashObject
As described in the bug, ve.getHash performs JSON.stringify so to
customise a hash the object should just return an object to be
hashed, not the hash string itself.

Bug: 46895
Change-Id: If11071d4b04a01e25102ffb57240882f650ee10d
2013-04-08 23:29:56 +01:00
Ed Sanders fdf30b1ac8 Store data in LinearData class with an index-value store for objects
Created an IndexValueStore class which can store any object and return
an integer index to its hash map.

Linear data is now stored in ve.dm.LinearData instances. Two subclasses
for element and meta data contain methods specific to those data types
(ElementLinearData and MetaLinearData).

The static methods in ve.dm.Document that inspected data at a given
offset are now instance methods of ve.dm.ElementLinearData.

AnnotationSets (which are no longer OrderedHashSets) have been moved
to /dm and also have to be instantiated with a pointer the store.

Bug: 46320
Change-Id: I249a5d48726093d1cb3e36351893f4bff85f52e2
2013-03-30 10:06:34 +00:00
Inez Korczyński fe0fdcd67c Small cleanup in CE
Better comments for:
* ve.ce.Document.getRelativeOffset,
* ve.ce.Document.getSiblingWordBoundary.
Convert ve.ce.Surface.getSelectionRect to a static method.
Moved getNodeAndOffset from ve.ce.Surface to ve.ce.Document.

Change-Id: Ic00221fa463205d04c9b52150c0dd15904493b1e
2013-03-27 10:50:02 -07:00
Trevor Parscal c2e1350fe0 Remove more periods
Tags don't need periods at the end, these are not complete sentences.

Change-Id: I8efa931862149e892d08b370e70aff8d86a6db7d
2013-03-20 22:55:50 +00:00
Trevor Parscal d1a397221e Added validation to ve.inheritClass
I encountered a very difficult to track down error while working on
ve.ui.Dialog where a copy-pasted inheritClass call overwrote the
prototype of ve.ui.Widget.

By adding this check, we can ensure that 2 identical calls to
inheritClass won't silently make the system explode. This check is
lightweight and will save someone down the line a bit of time and head
scratching.

Change-Id: I014d53722fc8d941ec415462d258a79985e0e3d7
2013-02-27 18:41:59 +01:00
Trevor Parscal 622180b6fa Fix JSDuck warnings
Follows-up I44bcb79a59 and various other changes.

Please remember to generate documentation and resolve
all warnings before pushing into gerrit.

Change-Id: I8a372443e841308463376d8673ce027a97bbcd30
2013-02-26 00:44:21 +01:00
Inez Korczyński 0c73aa012e Introduce ve.Keys based on DOM Level 3 KeyEvent
Change-Id: I6abee2c0c49e355aef39089c7c94e51aaee01929
2013-02-20 16:15:59 -08:00
Catrope 477cec43d6 Make ve.copyArray() / copyObject() work with booleans
This should really be fixed to not enumerate all types but be nicer.
Timo said he'd do that.

Change-Id: I15807696a7324d3fb207ed41b442a83dc83a75ec
2013-02-20 09:30:09 -08:00
James D. Forrester 82114467f1 Bump copyright notice year range to -2013 over -2012
199 files touched. Whee!

Change-Id: Id82ce4a32f833406db4a1cc585674f2bdb39ba0d
2013-02-19 15:37:34 -08:00
Catrope d36e6851d5 Add ve.createDocumentFromHTML()
Converts an HTML string to a brand new document using an iframe hack
(proper ways to do this exist, but don't work cross-browser).

Parsoid will serve us full HTML documents rather than document fragments
soon, so we'll need this functionality (along with some other changes
that I'm working on now) to deal with that change.

This doesn't currently work quite right in IE8 (although we have lots of
other issues in IE8) as well. It's not that hard to fix up though: we
just have to leave the iframe attached to the main document (should
probably provide a destroy function in that case) and the tests have to
deal with the fact that IE normalizes <head></head> to
<head><title></title></head> .

(For backwards compatibility, we'll have to deal with document fragments
as well; this will be implemented as an MW-specific hack in the
integration in the next commit.)

Change-Id: I15f877583c39124ba1c5e8e22585297ff3bac8d6
2013-02-19 10:30:25 -08:00
Catrope 98a914e9fe Optimize ve.filterArray a bit
Change-Id: I8fc9c8d5f57a4af3b5421c65664351f21e488c53
2013-02-07 17:16:18 -08:00
Catrope 47b728bed9 Add wrapper for Array.prototype.filter
Change-Id: Ie7d8dd4193a81bedbb75258494bd78e8236bd0e8
2013-01-22 15:55:11 -08:00
Trevor Parscal a379e0f91e More {String} -> {string} conversions in documentation
Follow up for I6a7c9e8ee8f995731bc205d666167874eb2ebe23

The first pass that Timo took missed the following cases

* "{Array|String}": string is just one of the values
* "{String[]}": string is followed by [] to indicate an array of strings

Change-Id: I65e595e8d37fb624802d84af9536a2d3c5d73c7d
2013-01-08 13:02:12 -08:00
Timo Tijhof b11bbed7a6 JSDuck: Generated code documentation!
See CODING.md for how to run it.

Mistakes fixed:
* Warning: Unknown type function
  -> Function
* Warning: Unknown type DOMElement
  -> HTMLElement
* Warning: Unknown type DOM Node
  -> HTMLElement
* Warning: Unknown type Integer
  -> Mixed
* Warning: Unknown type Command
  -> ve.Command
* Warning: Unknown type any
  -> number
* Warning: Unknown type ve.Transaction
  -> ve.dm.Transaction
* Warning: Unknown type ve.dm.AnnotationSet
  -> ve.AnnotationSet
* Warning: Unknown type false
  -> boolean
* Warning: Unknown type ve.dm.AlienNode
  ve.dm doesn't have a generic AlienNode like ve.ce
  -> Unknown type ve.dm.AlienInlineNode|ve.dm.AlienBlockNode
* Warning: Unknown type ve.ve.Surface
  -> ve.ce.Surface
* ve.example.lookupNode:
  -> Last @param should be @return
* ve.dm.Transaction.prototype.pushReplace:
  -> @param {Array] should be @param {Array}
* Warning: ve.BranchNode.js:27: {@link ve.Node#hasChildren} links to non-existing member
  -> (removed)
* Warning: ve.LeafNode.js:21: {@link ve.Node#hasChildren} links to non-existing member
  -> (removed)

Differences fixed:
* Variadic arguments are like @param {Type...} [name]
  instead of @param {Type} [name...]
* Convert all file headers from /** to /*! because JSDuck tries
  to parse all /** blocks and fails to parse with all sorts of
   errors for "Global property", "Unnamed property", and
  "Duplicate property".
  Find: \/\*\*([^@]+)(@copyright)
  Replace: /*!$1$2
* Indented blocks are considered code examples.
  A few methods had documentation with numbered lists that were
  indented, which have now been updated to not be intended.
* The free-form text descriptions are parsed with Markdown,
  which requires lists to be separated from paragraphs by an
  empty line.
  And we should use `backticks` instead of {braces} for inline
  code in text paragraphs.
* Doc blocks for classes and their constructor have to be
  in the correct order (@constructor, @param, @return must be
  before @class, @abstract, @extends etc.)
* `@extends Class` must not have Class {wrapped}
* @throws must start with a {Type}
* @example means something else. It is used for an  inline demo
  iframe, not code block. For that simply indent with spaces.
* @member means something else.
  Non-function properties are marked with @property, not @member.
* To create a link to a class or member, in most cases the name
  is enough to create a link. E.g. Foo, Foo.bar, Foo.bar#quux,
  where a hash stands for "instance member", so Foo.bar#quux,
  links to Foo.bar.prototype.quux (the is not supported, as
  "prototype" is considered an implementation detail, it only
  indexes class name and method name).
  If the magic linker doesn't work for some case, the
  verbose syntax is {@link #target label}.
* @property can't have sub-properties (nested @param and @return
  values are supported, only @static @property can't be nested).
  We only have one case of this, which can be worked around by
  moving those in a new virtual class. The code is unaltered
  (only moved down so that it isn't with the scope of the main
  @class block). ve.dm.TransactionProcessor.processors.

New:
* @mixins: Classes mixed into the current class.
* @event: Events that can be emitted by a class. These are also
  inherited by subclasses. (+ @param, @return and @preventable).
  So ve.Node#event-attach is inherited to ve.dm.BreakNode,
  just like @method is.
* @singleton: Plain objects such as ve, ve.dm, ve.ce were missing
  documentation causing a tree error. Documented those as a
  JSDuck singleton, which they but just weren't documented yet.
  NB: Members of @singleton don't need @static (if present,
  triggers a compiler warning).
* @chainable: Shorthand for "@return this". We were using
  "@return {classname}" which is ambiguous (returns the same
  instance or another instance?), @chainable is specifically
  for "@return this". Creates proper labels in the generated
  HTML pages.

Removed:
* @mixin: (not to be confused with @mixins). Not supported by
  JSDuck. Every class is standalone anyway. Where needed marked
  them @class + @abstract instead.

Change-Id: I6a7c9e8ee8f995731bc205d666167874eb2ebe23
2013-01-05 01:16:32 +01:00
Timo Tijhof 407de829dd Init: Fix incorrect context for mw.msg.apply.
Context should be 'mw', not 'mw.msg'.
Also updated to using ve.bind instead and documented that ve.msg
cannot ve.bind because the reference 've.init.platform.getMessage'
does not exist yet at run time of the ve.js file.

Change-Id: I7eb692bdc4b63cc44fab118054d8eea05c2a71ff
2012-12-02 03:45:51 +01:00
Inez Korczyński a9082e6dde Only apply HTML attributes to DOM nodes that are "safe"
* Added whitelist argument to setDomAttributes which allows filtering of attributes being set
* Added prefix argument to ve.dm.Node.getAttributes to allow extracting a subset of attributes by name prefix
* Added a whitelist to ve.ce.Node which was extracted from MediaWiki's Sanitizer class
* Replaced attribute copying code with a call to setDomAttributes using the whitelist argument, passing in attributes from a call to ve.dm.Node.getAttributes using the prefix argument

Also…

* Removed comment in constructor of ve.ce.Node, documentation for properties is usually in the getters/setters, and already was in this case
* Renamed ve.setDOMAttributes to ve.setDomAttributes
* Renamed ve.getDOMAttributes to ve.getDomAttributes
* Renamed ve.getDOMText to ve.getDomText
* Renamed ve.getDOMHash to ve.getDomHash
* Updated all callers of renamed methods

Change-Id: Id556172d5d18ea431044b9d402400e1f0e67a293
2012-11-27 14:34:29 -08:00
Catrope c8661c0033 <br> isn't a block element
Also remove commented-out <img>

Change-Id: I7dc9f3b23c15008047cad938ed3408f55ea568d2
2012-11-14 11:27:49 -08:00
Catrope 6ef9fa78ff Fix ve.batchSplice() to behave in line with docs
* Actually return the spliced data like the docs claim we do
* Remove false claim that offset can be negative
* Add that data=[] && remove=0 is invalid; native splice() doesn't allow
  this, and there is a case where we call native splice() directly
* Add tests

Change-Id: I90e77c1b22ea1c36cb61e89ea47831885a0b1cb9
2012-10-30 10:05:49 -07:00
Catrope d30096ebd3 Fix copyObject/copyArray behavior with null values
Previously copyObject and copyArray would silently drop null values,
which is bad, especially considering we have example data for meta nodes
that has { 'key': null } somewhere.

Also added a test case that failed prior to this change.

Change-Id: I4f233cce041fbf38f701c494f1f78ac3d8535d88
2012-10-29 19:45:25 -07:00