Question

我的View中有一个TableViewer，我想使用 org.eclipse.ui.edit.selectAll 命令使用标准的Ctrl + A快捷键选择所有行。

当我进行跟踪时，我可以看到HandlerAuthority类解决了一些冲突，输出如下所示：

HANDLERS >>> Command('org.eclipse.ui.edit.selectAll') has changed to 'org.eclipse.ui.internal.handlers.SelectAllHandler' as its handler
HANDLERS >>>     resolveConflicts: eval: HandlerActivation(commandId=org.eclipse.ui.edit.selectAll,
    handler=org.eclipse.ui.internal.handlers.SelectAllHandler@2a3e58,
    expression=,sourcePriority=0)
HANDLERS >>> Resolved conflict detected.  The following activation won: 
HANDLERS >>>     HandlerActivation(commandId=org.eclipse.ui.edit.selectAll,
    handler=org.eclipse.ui.internal.handlers.SelectAllHandler@2a3e58,
    expression=,sourcePriority=0)
HANDLERS >>>     resolveConflicts: eval: HandlerActivation(commandId=org.eclipse.ui.edit.selectAll,
    handler=org.eclipse.ui.internal.handlers.SelectAllHandler@2a3e58,
    expression=,sourcePriority=0)
HANDLERS >>> Resolved conflict detected.  The following activation won: 
HANDLERS >>>     HandlerActivation(commandId=org.eclipse.ui.edit.selectAll,
    handler=org.eclipse.ui.internal.handlers.SelectAllHandler@2a3e58,
    expression=,sourcePriority=0)
HANDLERS >>>     resolveConflicts: eval: HandlerActivation(commandId=org.eclipse.ui.edit.selectAll,
    handler=ActionHandler(RetargetAction(selectAll)),
    expression=ActiveShellExpression(Shell {SPL v0.1.2 (VYVOJ) (DB TEST)}),sourcePriority=17408)
HANDLERS >>>     resolveConflicts: eval: HandlerActivation(commandId=org.eclipse.ui.edit.selectAll,
    handler=org.eclipse.ui.internal.handlers.SelectAllHandler@2a3e58,
    expression=,sourcePriority=0)
HANDLERS >>> Resolved conflict detected.  The following activation won: 
HANDLERS >>>     HandlerActivation(commandId=org.eclipse.ui.edit.selectAll,
    handler=ActionHandler(RetargetAction(selectAll)),
    expression=ActiveShellExpression(Shell {SPL v0.1.2 (VYVOJ) (DB TEST)}),sourcePriority=17408)
HANDLERS >>> Command('org.eclipse.ui.edit.selectAll') has changed to 'ActionHandler(RetargetAction(selectAll))' as its handler

当我按下Ctrl + A时，我可以看到：

KEYS >>> Listener.handleEvent(type = KeyDown, stateMask = 0x0, keyCode = 0x40000, time = 9403459, character = 0x0)
    KEYS >>> Listener.handleEvent(type = KeyDown, stateMask = 0x40000, keyCode = 0x61, time = 9403553, character = 0x1)
    KEYS >>> WorkbenchKeyboard.press(potentialKeyStrokes = [CTRL+A])
    KEYS >>> WorkbenchKeyboard.executeCommand(commandId = 'org.eclipse.ui.edit.selectAll', parameters = {})
    KEYS >>>     not handled

调试RetargetAction我发现Action没有被处理，因为它没有设置处理程序。

所以我的问题是，为什么HandlerAuthority将RetargetAction设置为for的处理程序 org.eclipse.ui.edit.selectAll 命令？我想使用默认的（org.eclipse.ui.internal.handlers.SelectAllHandler）。

Answer 1

所有旨在由多个视图和编辑者实施的操作都使用RetargetAction。您可以在视图中连接到重定目标操作：

IActionBars bars = getViewSite().getActionBars();

bars.setGlobalActionHandler(ActionFactory.SELECT_ALL.getId(), selectAllAction);

其中selectionAllAction是Action，可以在您的桌子上执行全部选择。行动可能如下：

class SelectAllAction extends Action
{
  private final TableViewer tableViewer;

  SelectAllAction(final TreeViewer viewer)
  {
    tableViewer = viewer;
  }


  @Override
  public void run()
  {
    tableViewer.getTable().selectAll();

    // Get table view selection synchronized with table selection

    tableViewer.setSelection(tableViewer.getSelection());
  }
}

标准＆＃39;全选＆＃39;命令不起作用

1 个答案: