Let's experiment with this via our local Gruntfile. If it works
fine we can install it in Jenkins (similar to node-csslint).
Verify through $ npm install && npm test;
Fixed all outstanding violations.
Also:
* Added syntaxhighight to ignore.
* Added imetests (which contain unformatted JSON) to ignore.
* In ve.dm.ModelRegistry#matchTypeRegExps, removed redundant
!! cast from the [+!!withFunc] statement which was hitting
a bug in node-jscs. All callers to this local private function
pass a literal boolean true/false so no need to cast it.
* Removed "/* key .. , value */" from ve.setProp, though this
wasn't caught by node-jscs, found it when searching for " , ".
* Made npm.devDependencies fixed instead of using tilde-ranges.
This too often leads to strange bugs or sudden changes. Fixed
them at the version they were currently ranging to.
Bug: 54218
Change-Id: Ib2630806f3946874c8b01e58cf171df83a28da29
It's not much of an optimisation to combine these loops but
separating them gives us greater flexibility.
Move the building of the node tree to happen lazily when
getDocumentNode is called.
In the rich paste path we can now create the DM without building
the node tree and remove the metadata.
Change-Id: I10b4bc486ff8ff8037158aa6dfd45aac87557d42
Following on from getDomFromModel, this returns a document model
instead of element linear data. The only instance that hasn't been
replaced is in rich paste, where we need to sanitize the converted
data before constructing the document model.
This should be cleaned up in a later commit.
Change-Id: I37a2b641632af2cb515e3409deed5cd1fa358af5
Allow pasting of rich (HTML) content.
ve.ce.Surface
* Use a sliced document clone for converting to DM HTML (copy)
* Add full context to pasteTarget before copying
* Add ve-pasteProtect class to spans to prevent them being dropped
* Implement external paste by converting HTML to data and inserting
with newFromDocumentInsertion
* Remove clipboard key placeholder after read so they aren't picked
up by rich paste. Hash no longer includes the placeholder.
* Detect the corruption of important spans and fallback to clipboard
data HTML if available.
ve.dm.LinearData
* Add clone method for copy
ve.dm.ElementLinearData
* Add compareUnannotated for use by context diffing.
* Add sanitize method for cleaning data according to a set of rules.
ve.dm.Transaction
* Add range parameter for inserting a range of a document only,
e.g. stripping the paste context.
ve.dm.Document
* Implement sliced document clone creation so that DM HTML
is generated correctly in onCopy
ve.dm.DocumentSlice
* Replaces LinearDataSlice. Now has two ranges for balanced data
and data with a full context.
ve.init.Target.js
* Define default, loose, paste rules (just remove aliens).
ve.init.mw.ViewPageTarget
* Define strict MW paste rules:
+ no links, spans, underlines
+ no images, divs, aliens
+ strip extra HTML attribues
ve.init.sa.Target, ve.init.mw.ViewPageTarget, ve.ui.Surface
* Pass through and store paste rules.
Bug: 41193
Bug: 48170
Bug: 50128
Bug: 53828
Change-Id: I38d63e31ee3e3ee11707e3fffed5174e1d633b42
Add it as an optional parameter to the constructor, and create a new
one if omitted.
This is going to be used to resolve URLs according to the right <base>,
but really that's a hack and we should come up with a better way to
track metadata from the <head>.
Change-Id: I49dfc81ff793d73e08a20e502d681a15613d23f7
Document slice only ever contained linear data, with extra functionality
to preserve the range. It pre-dated LinearData, but now we should
refactor it to reflect its purpose.
Change-Id: Ifc908f7526c83a43a51372c8d2494d7260e7facd
We already getSlice which returns a ve.dm.DocumentSlice, so using
the word slice in this method is very confusing. What we are actually
doing is creating a ve.dm.Document from a range. Also remove argument
overloading as it's not particularly helpful and would make the new
name a lie.
Change-Id: I93da3419510410b170396e6765fbe2a87f9795be
The way we implemented undoing transactions was horrible. We'd process
the original transaction, but with a reversed=true flag. That meant we
had to keep track of the 'reversed' flag everywhere, and use ternaries
like insert = reversed ? op.remove : op.insert; all over the place to
access transaction operations. Redo then worked by reapplying the
transaction. We would verify that this was OK by tracking whether the
transaction was in an applied state or an undone state.
This commit makes it so every transaction can only be applied once. To
undo, you obtain a mirror image of the transaction with tx.reverse(),
then apply that. To redo, you clone the original transaction with
tx.clone() and apply that. All the code that had to use ternaries to
check whether the transaction was being applied in reverse or not is
gone now, because you can only apply a given transaction forwards,
never in reverse.
Bonus:
* Make ve.dm.Document's .completeHistory a simple array of
transactions, rather than transaction/boolean pairs
* In the protection of double application test, clone the example
document properly; it modified ve.dm.example.data, which was "fine"
because it ran .commit() and .rollback() the same number of times
Change-Id: I3050c5430be4a12510f22e20853560b92acebb67
This version pushes a `replaceMetadata` operation after a `replace` to
fixup trailing metadata if there is no inserted region and the removed
region includes metadata. This avoids a corner case where the
size of the metadata arrays inserted/removed in `Transaction.pushReplace()`
do not match the size of the data arrays inserted/removed.
We remove the now-unused `Document.getMetadataReplace()` method.
We also adjust `MetaList.onTransact()` so that it continues to work
properly when the number of metadata entries in `replace.insert` is
not the same as the number of metadata entries in `replace.remove`.
Change-Id: I1d600405b855ca1cb569853bb885b0752df47173
In ve.dm.Document.getMetadataReplace(), we used to only merge metadata
if the amount removed is larger than the amount inserted. But this
could end up putting metadata in odd positions, for example if you
have Foo[[Category:Bar]]Baz and you delete 'ooBa' and replace it with
{image}xxx{/image}, then the category ends up inside the image.
We should always merge metadata when a segment is deleted, so that it
appears outside any new structure added.
There's a weird corner case here when a segment is removed but no
insertion is made: the removed metadata then needs to get glommed onto
the next element. We extend the insert/replace metadata array
when this happens.
Bug: 53444
Bug: 53445
Change-Id: I51d55fb370b473273f9cf152fdd0f356377d4109
These have been pointing to the same method for a while now,
we can safely remove these obsolete aliases and just use it
as generic copy.
* Each file touched by my editor had its new line at EOF fixed
where absent
* Don't copy an otherwise unused empty object
(ve.dm.Converter)
* Use common ve#copy syntax instead to create a link
(ve.dm.Document, ve.dm.example)
* Remove redundant conditionals for isArray/copyArray/copyObject
(ve.dm.example)
Change-Id: If560e658dc1fb59bf01f702c97e3e82a50a8a255
* Move them from ve.example.js to ve.dm.example.js
** Also move lookupNode() and createDomElement() there
** Delete ve.example.js because there's nothing left in it
* Make main example document implicit, but allow override
* Specify nodes as arrays and do the lookup later
* Specify range and mode separately rather than calling selectNodes()
during construction
* Construct statically rather than in a function
* Use expect( cases.length );
Change-Id: I620e949c5e612b32eaa57c5d9b60cc91f9ddbf02
Otherwise fun exceptions occur when you have a <references /> tag
with no <ref>s, for instance.
Also disregard the internalList in the data->DOM conversion, to prevent
a nasty interaction where the whitespace information on the last element
is considered invalid because it doesn't match the internalList's.
Plus test updates from hell because this touches ve.dm.example.data
Change-Id: I62881d9fc27fa081123856d1b35a6021af469271
We don't need to decompose and rebuild alien meta items
as they are uneditable, so just store the dom node and return that
in toDomElements.
Update test cases and several tests now need to use
assert.deepEqualWithDomElements.
Change-Id: I4d2eed267dac7855cb929a17d7aef566eaf0e287
Objective:
* Allow opening reference dialog with arbitrary selection
* Auto-insert reference when selection is not a reference node
Changes:
ve.init.mw.ViewPageTarget.js
* Added reference button to toolbar
ve.init.Target.js
* Add getToolbarSubset so we can exclude the reference button from
the toolbar in the reference dialog (nested references are not
allowed).
ve.ui.MWReferenceDialog.js
* Stop storing referenceNode (not needed)
* Only store internalItem on open if there's a focused node that's a
reference
* Use wrapper paragraph when creating a new reference
* Create new reference on dialog close if required
ve.dm.InternalList.js
* Major rewrite to support key less references.
* Add new method for creating a transaction to insert a new iternal
item. Also returns the index of the new item to be passed to the
reference node.
Change-Id: I839ae165c299248484ce93d4ab087318a95fbb94
A document slice is a document built from a data slice of an existing
document. It's completely separate from the original document and has
its own store and internalList. The new document's data also contains
the entirety of the original document's internal list. It's possible
to create a document slice of data located inside the internal list,
in which case the resulting document will contain that data twice (one
mutable copy at the top level, and one immutable copy in the internal
list).
ve.dm.Document.js:
* Optionally take an internalList in the constructor. This allows us to
create a document with a clone of an existing internalList rather than
an empty one.
* Add edgeMetadata flag to getFullData()
ve.dm.IndexValueStore.js, ve.dm.InternalList.js:
* Make these classes cloneable
Change-Id: I93e06f764ace16aee9df941b07f8c2bff1a28e2b
ve.dm.Transaction
* Replace operations are now built directly from the
linear model and automatically determine what metadata
replace information they need to include:
** retainMetadata
** replaceMetadata
** insertMetadata
ve.dm.Document
* Metadata array created empty and padded out after data parsing
as we are no longer using Document.spliceData to build it (a new
test checks for correct metadata length)
* spliceData replaced with getMetadataReplace, which instead returns
transactional steps of spliceData (retain, replace, insert)
ve.dm.MetaLinearData
* Add function for merging metadata items together. Only used
once in the code (Document.getMetadataReplace) but useful
for generating test data.
ve.dm.MetaList
* Replace operations with metadata need to calculate new offset
and indices directly, but can't be applied immediately lest they
put a metaItem out of place and affect findItem.
ve.dm.MetaItem
* Add methods to support queued moves as required by MetaList
Test files
* Updated to match new pushReplace API
* Remove any instances of Document.spliceData
* Extra check on sparse metadata array length
* Rewrite spliceData tests as getMetadataReplace tests
* Count expected cases in Transaction(Processor) tests
Bug: 46954
Change-Id: I4edad1c2dd37c723bff2792bab7d694ef17a86dc
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
Initially just with a Wordbreak module to implement Unicode standard
on 'Default Word Boundaries'. Due to it's standaloneability this has
been written as a separate library. Non-BMP characters are currently
not supported.
Bug: 44085
Change-Id: Ieafa070076f4c36855684f6bc179667e28af2c25
Previously these were static functions in TransactionProcessor
which instantiated a TP called .process() on it. These are now
methods of ve.dm.Document.
Also moved the emission of the 'transact' event on the document from
TransactionProcessor to Document itself, and moved the tests asserting
double application is protected against from TP to Document (because
the corresponding code moved as well).
Change-Id: I7c9f22a14accaf0ba1f70d5aa4f0573bb7e677d0
This is just a prototype - if it will be as useful as I expect
then it will get refactored (and probably get a better name +
location).
Change-Id: Ice1a2bd7d498d9d8438c35239216f01bd3db1826
Replacing [a-zA-Z] with a long unicode expression which encompasses
all the characters in the unicode 'letters' category. Similarly replacing
[0-9] with an expression for 'numbers'.
Bug: 44085
Change-Id: Idd403339caa24769ce08133dda06ab6d4b9d694e
Also in this commit is a minor fix to the regular expression so it
behaves as documented (the hyphen needed escaping).
Bug: 44085
Change-Id: Idc315e2dce79be8f028b5681c60f74e175b9d869
Continues where Ibb682332a6084e357104183641a104e3ae1e253f left off, adding tests and removing inconsistencies between the behavior of the document constructor, which was adding empty text nodes to empty paragraphs, and correcting other tests which expected empty text nodes to be there as well.
Change-Id: I414d061cdd494b8023f14e944eda2910a4dab0d4
* Made method descriptions imperative: "Do this" rather than "Does this"
* Changed use of "this object" to "the object" in method documentation
* Added missing documentation
* Fixed incorrect documentation
* Fixed incorrect debug method names (as in those VeDmClassName tags we add to functions so they make sense when dumped into in the console)
* Normalized use of package names throughout
* Normalized class descriptions
* Removed incorrect @abstract tags
* Added missing @method tags
* Lots of other minor cleanup
Change-Id: I4ea66a2dd107613e2ea3a5f56ff54d675d72957e
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
ve.ce.Surface
* Switched to using getSlice instead of getData in copy and paste handlers
* Added try/catch which attempts to build a transaction with the unbalanced data first, but falls back on the balanced data otherwise
ve.dm.*Node
* Added default style attributes (now used by ve.dm.NodeFactory)
ve.dm.Document
* Fixed bugs in fixupInsertions where parentType was being set with an object rather than a string
* Made use of getDataElement
* Added adoption capability so that inserting a</h1><p>b into <p>c[cursor]d</p> results in <p>ca</p><p>bd</p> rather than throwing an exception
* Renamed getBalancedData to getSlice, now retuning a ve.dm.DocumentSlice object
ve.dm.DocumentSlice
* Introduced new container for balanced data and a range of the original context - useful for copy/paste
ve.dm.NodeFactory
* Added getDataElement method, which uses default attributes to create a boilerplate version of a data element
ve.dm.Document.test
* Updated getBalancedData test to be a getSlice test
demos/ve/index, VisualEditor, test/index
* Added references to ve.dm.DocumentSlice
Change-Id: Id9269a29e51ca213508de8f155d3feec5e5b0774
ve.ce.Surface
* Added ve.ce.Surface.adjustCursor, which replaces repetitive and buggy code that was handling left and right arrow key presses
* New method only affects the selection target, so it won't collapse the selection on you - this was what caused bug 42401
* Made hasSlugAtOffset() actually return a boolean
ve.dm.Document
* Fixed turn-around issue in ve.dm.Document.getRelativeOffset - if the offset is already valid and we can't move in the direction we want, we should just leave it be, not turn around
* Since this method was being used by ve.ce.Surface to correct the cursor position on arrow key presses, it was causing the strange cursor jumping when you pressed an arrow key while at the edge of a document
ve.dm.SurfaceFragment
* Fixed typo where getAnnotationRangeFromSelection was preserving selection direction, but checking the wrong properties
ve.dm.Document.test
* Added tests that verify turn-around issue is fixed
Change-Id: Iba55cfc3d531e7d1333b78c94912ff22179aace8
This is cleaner than passing around the attributes separately, and it
allows us to access the annotations in dm.LeafNode as well.
Change-Id: Ie5b90988114835831cbe5cdccf63c7cd45719e31
* Make converter generate meta nodes with 'style': 'comment'
* Handle style==='comment' in MetaBlockNode toDOM converter
* Add some comments to the meta test case
** Update other tests accordingly
* Change getDomElementSummary() to actually assert presence of comment
nodes (specifically, all non-text child nodes)
Change-Id: Ieef9418f4c47df3541477d9420aa2ab8df6e3df1
* ve.dm.Converter still generates metaInline/metaBlock elements as
before, it's not affected by this change
* ve.dm.Document constructor splits its input into "real" data and
metadata
** Metadata is stored in this.metadata (the meta-linmod) as a sparse
array of arrays, with an element for each offset in this.data
** this.data itself does not contain the metadata
** This means the node tree also doesn't contain the metadata
** Which means CE doesn't know about it at all
* All splice operations on the linear model are sent through
ve.dm.Document.spliceData(), which performs the splice and syncs the
meta-linmod
** Metadata in the removed range is reaped and added to the metadata for
the offset immediately following the removal
* ve.dm.Document.getFullData() splices the linmod and meta-linmod back
into each other; this "full data" is then fed back to ve.dm.Converter
Change-Id: Ief6dfd5b59cc13a8457993ed85c725413029c4fb
The data array is now taken by reference, and the caller must perform
any copying required.
Changed tests to make a deep copy of shared data sets (mostly
ve.dm.example) before passing them to ve.dm.Document().
Change-Id: Iedc64f9fd9cd689640de9a19379cf5f3db94a2bb
We were populating empty content nodes with zero-length text nodes to
make round-trip tests in the test suite work (otherwise blanking a
paragraph leaves behind a zero-length text node whereas creating an
empty paragraph does not), but the empty nodes are causing problems in
CE apparently.
* Do not create empty text nodes when constructing a node tree
* Be more careful with text-only replacements:
** Don't resize a text node to zero, remove it instead
** There may not be a text node to resize at all, build it in that case
** Switch nodeRange to nodeOuterRange, this was probably broken before
Tests:
* Change test case for zero-length text node to assert that there is
*no* zero-length text node :)
* Remove a test case concerning an empty text node from the
ve.ce.TextNode suite
Change-Id: Ie677457f2f0a7823a517ba3077b844ef52a20fcc
* Commands for Sublime:
Find*: "(\* @[a-z]+) ([^{].*) \{(.*)\}"
Replace: "$1 {$3} $2"
Save all && Close all
Find: " function("
Replace: " function ("
Save all && Close all
Find: "Intialization"
Replace: "Initialization"
Save all && Close all
* Consistent use of types (documented in CODING.rm):
- Merged {Integer} into {Number}.
- Merged {DOM Node} into {DOMElement}.
* Remove work-around /*jshint newcap: false */ from ve.js
Calling Object() as a function to to use the internal
toObject no longer throws a newcap warning in JSHint.
It only does that normal functions now .
(e.g. var a = Cap(); or var a = new uncap();)
* Add missing annotations (@static, @method, ..).
* Remove unused variables
* Remove null-assignments to variables that should just be
undefined. There's a few variables explicitly set to null
whereas they are set a few lines under and not used otherwise
(e.g. 'tx' in ve.ce.Surface.prototype.onPaste)
Change-Id: I0721a08f8ecd93c25595aedaa1aadb0e08b83799
Introduced the ve.AnnotationSet class to manage sets of annotations. This
is a generalization of ve.OrderedHashSet, a class that manages a set
using an array and an object keyed by hash.
Converted everything that stores, tracks or passes around annotations to
use ve.AnnotationSet. In particular, this means the linear model now
contains AnnotationSets instead of hash-keyed objects.
This allows us to maintain the order of annotations in the linear model,
and will help fix bugs with annotation ordering and splitting.
Change-Id: I50975b0a95f4cc33017a0b59fdede9ed1eff0124
[jshint]
ce/ve.ce.Surface.js: line 670, col 9, Too many var statements.
ce/ve.ce.Surface.js: line 695, col 6, Missing semicolon.
ce/ve.ce.Surface.js: line 726, col 22, Expected '===' and instead saw '=='.
ce/ve.ce.Surface.js: line 726, col 41, Expected '===' and instead saw '=='.
ce/ve.ce.Surface.js: line 733, col 13, Too many var statements.
ce/ve.ce.Surface.js: line 734, col 24, Expected '===' and instead saw '=='.
ce/ve.ce.Surface.js: line 1013, col 13, Too many var statements.
ce/ve.ce.Surface.js: line 1019, col 17, Too many var statements.
ce/ve.ce.Surface.js: line 1023, col 18, Too many ar statements.
ce/ve.ce.Surface.js: line 1027, col 13, Too many var statements.
dm/annotations/ve.dm.LinkAnnotation.js: line 70, col 52, Insecure '.'.
dm/ve.dm.Converter.js: line 383, col 29, Empty block.
dm/ve.dm.Converter.js: line 423, col 33, Empty block.
Commands:
* jshint .
* ack '(if|else|function|switch|for|while)\('
* Sublime Text 2:
Find(*): (if|else|function|switch|for|while)\(
Replace: $1 (
* ack ' ' -Q # double spaces, except in certain comments
Change-Id: I8e34bf2924bc8688fdf8acef08bbc4f6707e93be
When a document is created, it should take it upon itself to make sure it has a new reference to the data using slice, not place this on the caller. Callers that do not use slice will often find strange and mysterious things going on and not know why. The real reason is that multiple documents sharing a reference to the same data array leads to seriously messed up behavior.
Change-Id: Ic4e25fcd9bf3f41a805003520a8f38e2768f5dbf
Stack traces, line numbers, etc. All the approaches I've seen are bad hacks. This is the best way to go.
Change-Id: Ib12e9d2ecfe610bcc89d046005e35cc13efa3d99
Throwing strings is bad because it doesn't include a lot of important
information that an error object does, such as a stack trace or where
the error was actually thrown from.
ve.Error inherits directly from Error. In the future we may create
more specific subclasses and/or do custom stuff.
Some interesting reading on the subject:
* http://www.devthought.com/2011/12/22/a-string-is-not-an-error/
Change-Id: Ib7c568a1dcb98abac44c6c146e84dde5315b2826
Also:
* Removed a lot of dead code in Surface that was used in the now dead and gone sandbox.
* Changed from throwing an exception when calling getBalancedData on a range that produces no results from selectNodes to just returning []
Change-Id: Icf27094724eae5b90eec21308f9e26afe877e3ee
