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0.3.0

General

column plugin names are now lowercase

Formerly, column plugins and the named arguments storing their module return values had their first letter capitalized. However, given that these plugins are in fact simply functions which modify (and return) their first passed argument, and are not in fact constructors, their nomenclature has been amended to all-lowercase to avoid confusion, and to further convey that they are intended to be run without the new keyword.

When running on a case-insensitive filesystem (e.g. Windows, or Mac OS X by default), this change likely won't have any immediate visible effect on existing code which requests the module with an initial capital letter. However, revising code to reference the all-lowercase module ID is encouraged.

new TouchScroll implementation

The TouchScroll module provides touch-event-based scrolling for dgrid components on touch devices. Originally this module was borrowed from a snapshot of a dojox/mobile module, but this implementation blocked several dgrid features from working correctly on touch devices.

That module has been replaced by a new barebones implementation written from the ground up. Further development on this module is likely to occur.

additional extensions

The following extensions have been added since v0.2:

  • ColumnReorder: allows reordering columns in simple grids via DnD
  • ColumnHider: allows dynamically hiding/showing grid columns from a simple menu
  • Pagination: adds controls for discrete pagination

More information on these extensions can be found on the Extensions page of the wiki.

CSS

column- and columnset-* classes now prefixed with dgrid-

The column-<id> classes added by the Grid module, and the columnset-* classes added by the ColumnSet mixin, have been renamed to include the dgrid- prefix like most other classes automatically added by dgrid components.

The main exception is the field-<field> classes, which are intentionally not namespaced in this fashion, as they are thought to be more applicable to the particular use-case and less applicable to the dgrid components themselves.

In the overwhelming majority of cases, it is recommended to style using the .field-<field> classes (or, if a className is specified in the column definition, use that as it overrides the .field-<field> class).

ColumnResizer: handle node class is now dgrid-resize-handle

The class on the resize handle node added to each header cell by the ColumnResizer extension was formerly dgrid-resize-handler; this has been corrected to dgrid-resize-handle.

List

While these changes relate particularly to code in List.js, note that the changes essentially affect all dgrid components, since all components extend from or mix into List.

new: get and set methods

Central get and set functions have been implemented, somewhat akin to the interfaces seen in dojo/Stateful and dijit/_WidgetBase. However, there are some key differences:

  • dgrid supports custom getters and setters, but they are named following the pattern of _getFoo and _setFoo, unlike Dijit's _getFooAttr and _setFooAttr.
  • watch is not implemented.

Most set* functions found throughout dgrid components are now implemented as custom setters, and should thus be accessed via the central set method. For example, setQuery(...) is now set("query", ...). Deprecation stubs are currently in place for the old APIs, but will be removed in the future.

sortOrder property and sort function replaced by getter/setter

Previously, sortOrder was the (arguably internal) instance property used to store the current sort options. Sort code has since been rearranged; the new recommended way to retrieve existing sort options is to call get("sort").

Meanwhile, the sort method has been deprecated in favor of set("sort", ...). Sort order can also now be initially defined when creating a list or grid by specifying a sort property in the object passed to the constructor.

Grid

columndef.get function now takes one parameter

The get function on column definitions is now passed only one argument: the object for the row in question.

Earlier, the object was the second parameter, in order to match the signature of the same function in dojox grid components. However, the first parameter did absolutely nothing in dgrid, and has now been removed.

_StoreMixin (OnDemandList/OnDemandGrid, Pagination)

new: columndef.set function

Store-backed grids now support a set function on the column definition object. Like get, this function receives an object, which contains the updated item as it will be put into the store. The function may return a value to replace the value in the field represented by the column.

Additionally, since the object passed to the function is the object that will be put, it is possible to perform more complex transformations by modifying the object directly; in this case, the function may elect not to return anything. Note, however, that this approach should be used sparingly and carefully, since it is possible to do anything to the item, and complications may develop if multiple columns in the same grid take this approach.

new: updateDirty

Store-backed grids also now have an updateDirty(id, field, value) method, which can be used to update dirty state of items represented in the grid. (On master this was previously known as setDirty, but did not exist in v0.2.)

Selection / CellSelection

dgrid-select and dgrid-deselect events

The behavior and signature of selection events has changed significantly.

  • When a range is selected, instead of firing many individual events for each affected row/cell, a single batched event will be fired.
  • These events now include a rows or cells property yielding an array of objects, rather than a row or cell property yielding a single object.
  • Deselect events will now fire when rows are removed, or if a refresh occurs which resets the grid's selection.

new: allowSelectAll property, disabled by default

Previously, checkbox selectors provided the ability to select all rows. This ability is still provided, but is now determined by the value of the allowSelectAll property.

Note, however, that this property defaults to false. This feature is not needed in all use cases, and its implications should be considered beforehand, especially with regard to the lazy-loading nature of store-backed lists and grids.

Additionally, it is now possible to use Ctrl+A or Cmd+A to toggle between selecting all items and selecting no items.

new: allowSelect method

Selection now exposes an allowSelect method on the instance. This method receives a row object (or a cell object in the case of CellSelection) and is expected to return true or false, reflecting whether selection of this row or cell should be permitted.

This is particularly useful in conjunction with the selector column plugin, which will display a disabled checkbox or radio button as appropriate.

new: deselectOnRefresh property

Previously, the Selection module would clear the selection whenever a list or grid is refreshed. While this is still the default, the behavior can now be disabled by setting deselectOnRefresh to false.

selector

columndef.type is now columndef.selectorType

In dgrid 0.2, the selector type (generally either "checkbox" or "radio") could be specified within the column definition object via the type property. This has been changed to selectorType to avoid ambiguity. The selector type can also be specified as the second argument to the selector column plugin function instead, as before.

editor

The editor column plugin has been significantly refactored since v0.2. The most notable changes in terms of API effects are noted below.

widgetArgs property is now editorArgs

The widgetArgs property supported in the column definition by the editor plugin has been renamed to editorArgs to be agnostic as to whether the editor is a widget or a standard input, leaving the door open for usage with standard HTML input types.

editorArgs cannot be specified as a function

Previously, it was possible to specify widgetArgs as a function instead of an object. The function would receive a store item and be expected to return an object hash to pass to the widget constructor each time an editor is rendered.

This capability was rarely useful, and is no longer viable, particularly due to how editors now behave when editOn is specified: the editor component is only constructed once, rather than every time a cell is activated for editing.

Thus, widget properties may only be specified directly via an object hash to the editorArgs property. For more advanced cases where the value needs to be computed or transformed on a per-item basis, use the get function in the column definition object to return the appropriate data.

dgrid-datachange event properties

The dgrid-datachange event emitted by the editor column plugin now includes a cell property, which contains the same data retrievable via grid.cell(event). Since grid.cell is already called in the relevant editor code, it is exposed directly on the event to avoid forcing developers to perform the same lookup again on the other end.

Since it is possible to get cell and row information from this property, the previously-exposed rowId property of the dgrid-datachange event is now deprecated and will be removed in a future release.

The dgrid-datachange event also now includes a grid property containing a reference to the Grid instance from which the event was fired.

tree

expand method added to grid instance

Tree columns now add an expand(row, expand) method to their parent grid, for programmatically expanding or collapsing grid rows. See the documentation for details.

DnD

dndTargetConfig improved; is now dndParams

Previously, the DnD plugin defined a dndTargetConfig instance property, which was a params object to be passed to the DnD Source constructor. However, this was only used internally and did not consult any value provided via the constructor.

This property has been renamed to dndParams, and now accepts an object value via the constructor's arguments object.

new: dndConstructor

Previously, the DnD plugin would always create an instance of the GridSource constructor it defines and exposes. A dndConstructor property has been added, which can be used to specify an alternative DnD implementation to instantiate.

For best results, the constructor used should extend the GridSource constructor exposed by the DnD module.

default dndSourceType is now dgrid-row

The default value for the dndSourceType property has been changed from row to dgrid-row to prevent ambiguity.

DnD Source instance now stored as grid.dndSource

Previously, the DnD Source instance was stored on the grid instance under the dndTarget property; this has been renamed more appropriately to dndSource.

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