SWTBot/GSOC dragndrop

This page contains various thoughts/proposals/snippets developed in order to support Drag'n'Drop in SWTBot in a smart and efficient way. Most of this was produced by Rohit AGRAWAL as part of Google Summer of Code 2013. See Rohit's proposal.

Requirements

• Usage must be consistent with current SWTBot APIs. We can expect a method on AbstractSWTBot.
• Usage must be homogeneous in SWTBot, and must be the same for all possible controls and concepts
• It must support SWT and GEF
• This must be supported by Test Recorder and Generator (addition of rules)

Optional:

• It should support the concept of path (allow intermediary drags to before a drop)

Main use-cases

So far, here are the 2 main use-cases that were identified based on community feedback:

• Drag'n'Drop of Tree elements
• Drag'n'Drop of GEF elements

Proposals

AbstractSWTBot<? extends Widget> dragAndDrop

This is a patch that was proposed early on https://bugs.eclipse.org/bugs/show_bug.cgi?id=285271: Example:

final SWTBotTree sourceTree = bot.tree(0);
final SWTBotTree targetTree = bot.tree(1);
final SWTBotTreeItem sourceItem = sourceTree.getTreeItem("Drag Source name 0");
final SWTBotTreeItem targetItem = targetTree.getTreeItem("Drop Target name 0");
 
sourceItem.dragAndDrop(targetItem);

Requirements support:

• Usage must be consistent with current SWTBot APIs. YES
• Usage must be homogeneous in SWTBot, and must be the same for all possible controls and concepts YES
• It must support SWT and GEF NO
• This must be supported by Test Recorder and Generator (addition of rules) NO
• It should support the concept of path (allow intermediary drags to before a drop) NO

DNDUtils

This is the workaround that has been extensively used so far. It's an utility class that is attached to https://bugs.eclipse.org/bugs/show_bug.cgi?id=285271:

final SWTBotTree sourceTree = bot.tree(0);
final SWTBotTree targetTree = bot.tree(1);
final SWTBotTreeItem sourceItem = sourceTree.getTreeItem("Drag Source name 0");
final SWTBotTreeItem targetItem = targetTree.getTreeItem("Drop Target name 0");
 
DNDUtils.dragAndDrop(sourceItem, targetItem)

Requirements support:

• Usage must be consistent with current SWTBot APIs. NO
• Usage must be homogeneous in SWTBot, and must be the same for all possible controls and concepts YES
• It must support SWT and GEF YES
• This must be supported by Test Recorder and Generator (addition of rules) NO
• It should support the concept of path (allow intermediary drags to before a drop) NO