如何在视图的工具栏中添加一个下拉按钮？ [英] How to add a pulldown button in a view's toolbar?

问题描述

我需要在视图的工具栏中添加下拉按钮在Eclipse插件中。

I need to add a pulldown button to a view's toolbar in an Eclipse plugin.

工具栏中的按钮实际上是这样添加的：

Actually buttons in the toolbar are added like that :

<extension point="org.eclipse.ui.viewActions">
  <viewContribution id="..." targetId="$MyViewId$">
    <action id="..."
            toolbarPath="action1"
            class="Class extending Action and implementing IViewActionDelegate">
    </action>
  </viewContribution>
</extension>

推荐答案

我已经弄清楚了。两种方法：一种使用 org.eclipse.ui.viewActions 扩展，另一种使用 org.eclipse.ui.menus

I've figured it out. Two ways: one using org.eclipse.ui.viewActions extension, the other with org.eclipse.ui.menus

• 动作风格必须设置为下拉菜单

• action's style must set to pulldown

    <extension point="org.eclipse.ui.viewActions">
      <viewContribution id="..." targetId="$MyViewId$">
        <action id="..."
                toolbarPath="action1"
                class="xxx.MyAction"
                style="pulldown">
        </action>
      </viewContribution>
    </extension>

• 动作类必须实现 IViewActionDelegate （为视图工具栏提供的操作需要）和 IMenuCreator （定义菜单行为）。


• action class must implement IViewActionDelegate (required for an action contributing to a view toolbar) and IMenuCreator (defines the menu behavior).

    public class RetrieveViolationsViewActionDelegate implements IViewActionDelegate, IMenuCreator
    {
      private IAction action;
      private Menu menu;

      // IViewActionDelegate methods
      ...

      // IMenuCreator methods
      public void selectionChanged(IAction action, ISelection selection)
      {
        if (action != this.action)
        {
          action.setMenuCreator(this);
          this.action = action;
        }
      }

      public void dispose()
      {
        if (menu != null)
        {
          menu.dispose();
        }
      }

      public Menu getMenu(Control parent)
      {
        Menu menu = new Menu(parent);
        addActionToMenu(menu, new ClassImplemententingIAction());
        return menu;
      }

      public Menu getMenu(Menu parent)
      {
        // Not use
        return null;
      }



      private void addActionToMenu(Menu menu, IAction action)
      {
        ActionContributionItem item= new ActionContributionItem(action);
        item.fill(menu, -1);
      }
    }





使用org.eclipse.ui.menus（eclipse> = 3.3）






• 向 org.eclipse.ui.menus 扩展点


• 将位置URI设置为工具栏：IdOfYourView


• 向此扩展名添加工具栏，


• 将命令样式更改为 pulldown


• 创建一个新的菜单，并将locationURI设置为菜单：IdOfThePullDownCommand


• 将命令添加到此菜单。



Using org.eclipse.ui.menus (eclipse >= 3.3)

• Add a new menucontribution to the org.eclipse.ui.menus extension point.
• Set the location URI to toolbar:IdOfYourView
• Add a toolbar to this extension and a new command to this new toolbar.
• Change the command style to pulldown
• Create a new menucontribution and set the locationURI to menu:IdOfThePullDownCommand
• Add commands to this menu.

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