ButtonActionComponent.c

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class ButtonActionComponent : ScriptedWidgetComponent
{
    [Attribute(defvalue: "0", uiwidget: UIWidgets.ComboBox, enums: { ParamEnum("LMB", "0", ""), ParamEnum("RMB", "1", ""), ParamEnum("MMB", "2", ""), ParamEnum("ALL", "3", "") }, desc: "ID of mouse button which activates the action upon click.")]
    private int m_iMouseButton;
    
    [Attribute(desc: "Name of input action which activates the action.")]
    private string m_bActionName;
    
    [Attribute(defvalue: "2", uiwidget: UIWidgets.ComboBox, enums: ParamEnumArray.FromEnum(EActionTrigger))]
    private EActionTrigger m_ActionTrigger;
    
    [Attribute(desc: "Name of the widget which shows key assigned to the input action.")]
    private string m_bWidgetHintName;
    
    private Widget m_wWidget;
    private ref ScriptInvoker m_OnAction = new ScriptInvoker();
    
    //------------------------------------------------------------------------------------------------
    ScriptInvoker GetOnAction()
    {
        return m_OnAction;
    }
 
    //------------------------------------------------------------------------------------------------
    int GetMouseButton()
    {
        return m_iMouseButton;
    }
 
    //------------------------------------------------------------------------------------------------
    static ScriptInvoker GetOnAction(Widget w, string buttonName, bool canCreateComponent = false, int mouseButton = 0)
    {
        Widget button = w.FindAnyWidget(buttonName);
        if (!button)
        {
            Print(string.Format("Widget '%1' not found in widget '%2'!", buttonName, w.GetName()), LogLevel.ERROR);
            return new ScriptInvoker();
        }
        
        return GetOnAction(button, canCreateComponent, mouseButton);
    }
 
    //------------------------------------------------------------------------------------------------
    static ScriptInvoker GetOnAction(Widget button, bool canCreateComponent = false, int mouseButton = 0)
    {
        ButtonActionComponent component;
        int countHandlers = button.GetNumHandlers();
        for (int i = 0; i < countHandlers; i++)
        {
            ButtonActionComponent componentCandidate = ButtonActionComponent.Cast(button.GetHandler(i));
            if (componentCandidate && componentCandidate.GetMouseButton() == mouseButton)
            {
                component = componentCandidate;
                break;
            }
        }
 
        if (!component)
        {
            if (canCreateComponent)
            {
                component = new ButtonActionComponent();
                component.m_iMouseButton = mouseButton;
                button.AddHandler(component);
            }
            else
            {
                Print(string.Format("Widget '%1' is missing ButtonActionComponent component!", button.GetName()), LogLevel.ERROR);
                return new ScriptInvoker();
            }
        }
        
        return component.GetOnAction();
    }
    
    //------------------------------------------------------------------------------------------------
    protected void Execute(float value, EActionTrigger reason)
    {
        if (!m_wWidget.IsVisible() || !m_wWidget.IsEnabledInHierarchy())
            return;
 
        m_OnAction.Invoke(m_wWidget, value, reason);
    }
 
    //------------------------------------------------------------------------------------------------
    protected void OnAction(float value, EActionTrigger reason)
    {
        Execute(value, reason);
    }
 
    //------------------------------------------------------------------------------------------------
    override bool OnClick(Widget w, int x, int y, int button)
    {
        if (button == m_iMouseButton || m_iMouseButton == 3)
            Execute(1, EActionTrigger.DOWN);
 
        return false;
    }
 
    //------------------------------------------------------------------------------------------------
    override void HandlerAttached(Widget w)
    {
        m_wWidget = w;
        
        //--- Get hint widget
        RichTextWidget widgetIcon;
        if (m_bWidgetHintName.IsEmpty())
            widgetIcon = RichTextWidget.Cast(w);
        else
            widgetIcon = RichTextWidget.Cast(w.FindAnyWidget(m_bWidgetHintName));
        
        if (widgetIcon)
        {
            if (m_bActionName != "")
                widgetIcon.SetText(string.Format("<action name=\"%1\"/>", m_bActionName));
            else
                widgetIcon.SetText("");
        }
        else
        {
            if (m_bWidgetHintName != "")
                Print(string.Format("ButtonActionComponent: RichTextWidget widget '%1' not found on widget '%2'!", m_bWidgetHintName, w.GetName()), LogLevel.ERROR);
        }
        
        //--- Add action listener
        if (m_bActionName == "")
            return;
        
        ArmaReforgerScripted game = GetGame();
        if (!game)
            return;
        
        InputManager inputManager = game.GetInputManager();
        if (inputManager)
            inputManager.AddActionListener(m_bActionName, m_ActionTrigger, OnAction);
    }
 
    //------------------------------------------------------------------------------------------------
    override void HandlerDeattached(Widget w)
    {
        if (m_bActionName == "")
            return;
        
        ArmaReforgerScripted game = GetGame();
        if (!game)
            return;
        
        InputManager inputManager = game.GetInputManager();
        if (inputManager)
            inputManager.RemoveActionListener(m_bActionName, m_ActionTrigger, OnAction);
    }
}