[FLEX-14191] Drop Indicator does not inherit styles in Lists

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Adobe Flex SDK 3.0 (Release)
• Component/s: Drag and Drop, mx: DataGrid, mx: List, mx: TileList, mx: Tree, Skinning
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Unassigned
• Reporter: Adobe JIRA
• Created: 03/Mar/08 08:05
• Updated: 19/Jul/10 01:13

Description

Steps to reproduce:
1. Create a subclass of (anything which is at least an ISimpleStyleClient) ProgrammaticSkin
2. Assign as the skin for dropIndicator on any List-based class
3. call getStyle("anyStyle") from within the class

Actual Results:
RTE:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.skins::ProgrammaticSkin/getStyle()[E:\dev\3.0.x\frameworks\projects\framework\src\mx\skins\ProgrammaticSkin.as:522]

Expected Results:
Style settings would be inherited from the List as with item renderers.

Workaround (if any):
None. Forced to create a separate Skin for any style changes

Patch attached:
Simple add the following 2 lines to showDropFeedback() in ListBase after the creation of the dropIndicator (and fix imports)

if (dropIndicator is ISimpleStyleClient)
ISimpleStyleClient(dropIndicator).styleName = this;