[jbosstools-issues] [JBoss JIRA] Created: (JBIDE-6439) Refactor and partially reimpement VpeDnD class

[Yahor Radtsevich (JIRA)]

Refactor and partially reimpement VpeDnD class
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                 Key: JBIDE-6439
                 URL: https://jira.jboss.org/browse/JBIDE-6439
             Project: Tools (JBoss Tools)
          Issue Type: Task
          Components: Visual Page Editor core
            Reporter: Yahor Radtsevich
            Assignee: Yahor Radtsevich
             Fix For: 3.2.0.M1


org.jboss.tools.vpe.dnd.VpeDnD class needs to be refactored and reimplemented for some parts.
It has the following weak points:
1. 'sourceInnerDragInfo' variable is not always reflects actual state of the 'VpeDnD' objects. It is used to DnD elements inside VPE only, in other cases, e.g. for external DnD it is ignored. It is error-prone and leads to many if-else structures.
2. 'selectionChanged' method has no interface and 'VpeDnD' class is tightly coupled with 'VpeVisualDomBuilder' class.
3. The class uses VPE's own drop implementation, while it is also implemented in the Outline View.
4. ...


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