nextapp.echo2.extras.webcontainer.DropDownMenuPeer Maven / Gradle / Ivy

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Echo2 bundled with Echo2_Extras, Echo2_FileTransfer and echopointing and various improvements/bugfixes
There is a newer version: 2.0.4
package nextapp.echo2.extras.webcontainer;

import nextapp.echo2.app.Color;
import nextapp.echo2.app.Component;
import nextapp.echo2.app.Extent;
import nextapp.echo2.app.FillImage;
import nextapp.echo2.app.ImageReference;
import nextapp.echo2.app.ResourceImageReference;
import nextapp.echo2.extras.app.DropDownMenu;
import nextapp.echo2.extras.app.menu.ItemModel;
import nextapp.echo2.extras.app.menu.MenuSelectionModel;
import nextapp.echo2.webcontainer.ContainerInstance;
import nextapp.echo2.webcontainer.RenderContext;
import nextapp.echo2.webcontainer.image.ImageTools;
import nextapp.echo2.webcontainer.propertyrender.ColorRender;
import nextapp.echo2.webcontainer.propertyrender.ExtentRender;
import nextapp.echo2.webcontainer.propertyrender.FillImageRender;
import nextapp.echo2.webrender.ServerMessage;
import nextapp.echo2.webrender.output.CssStyle;

import org.w3c.dom.Element;

public class DropDownMenuPeer extends AbstractMenuPeer {

    static final ImageReference DEFAULT_ICON_EXPAND = new ResourceImageReference(IMAGE_PREFIX + "ArrowDown.gif");
    
    public static final String IMAGE_ID_DISABLED_EXPAND_ICON = "disabledExpandIcon";
    public static final String IMAGE_ID_EXPAND_ICON = "expandIcon";
    
    /**
     * @see nextapp.echo2.extras.webcontainer.AbstractMenuPeer#getImage(nextapp.echo2.app.Component, java.lang.String)
     */
    public ImageReference getImage(Component component, String imageId) {
        ImageReference image = super.getImage(component, imageId);
        if (image != null) {
            return image;
        }
        
        FillImage fillImage = null;
        if (IMAGE_ID_BACKGROUND.equals(imageId)) {
            fillImage = (FillImage) component.getRenderProperty(DropDownMenu.PROPERTY_BACKGROUND_IMAGE);
            return fillImage == null ? null : fillImage.getImage();
        } else if (IMAGE_ID_MENU_BACKGROUND.equals(imageId)) {
            fillImage = (FillImage) component.getRenderProperty(DropDownMenu.PROPERTY_MENU_BACKGROUND_IMAGE);
            return fillImage == null ? null : fillImage.getImage();
        } else if (IMAGE_ID_SELECTION_BACKGROUND.equals(imageId)) {
            fillImage = (FillImage) component.getRenderProperty(DropDownMenu.PROPERTY_SELECTION_BACKGROUND_IMAGE);
            return fillImage == null ? null : fillImage.getImage();
        } else if (IMAGE_ID_EXPAND_ICON.equals(imageId)) {
            return (ImageReference) component.getRenderProperty(DropDownMenu.PROPERTY_EXPAND_ICON,
                    DEFAULT_ICON_EXPAND);
        } else if (IMAGE_ID_DISABLED_EXPAND_ICON.equals(imageId)) {
            return (ImageReference) component.getRenderProperty(DropDownMenu.PROPERTY_DISABLED_EXPAND_ICON);
        } else {
            return null;
        }
    }

    /**
     * Renders a dispose directive.
     * 
     * @param rc the relevant RenderContext
     * @param component the MenuBarPane being rendered
     */
    void renderDisposeDirective(RenderContext rc, Component component) {
        DropDownMenu menu = (DropDownMenu) component;
        String elementId = ContainerInstance.getElementId(menu);
        ServerMessage serverMessage = rc.getServerMessage();
        Element initElement = serverMessage.appendPartDirective(ServerMessage.GROUP_ID_PREREMOVE, 
                "ExtrasDropDownMenu.MessageProcessor", "dispose");
        initElement.setAttribute("eid", elementId);
    }

    /**
     * Renders an initialization directive.
     * 
     * @param rc the relevant RenderContext
     * @param component the MenuBarPane being rendered
     */
    void renderInitDirective(RenderContext rc, Component component, String targetId) {
        DropDownMenu menu = (DropDownMenu) component;
        String elementId = ContainerInstance.getElementId(menu);
        ServerMessage serverMessage = rc.getServerMessage();
        Element partElement = serverMessage.addPart(ServerMessage.GROUP_ID_UPDATE, "ExtrasDropDownMenu.MessageProcessor");
        Element initElement = serverMessage.getDocument().createElement("init");
        initElement.setAttribute("container-eid", targetId);
        initElement.setAttribute("eid", elementId);
        if (!menu.isRenderEnabled()) {
            initElement.setAttribute("enabled", "false");
        }
        MenuSelectionModel selectionModel = menu.getSelectionModel();
        if (selectionModel != null) {
            initElement.setAttribute("selection", "true");
            String selectedId = selectionModel.getSelectedId();
            ItemModel selectedModel = selectedId == null ? null :  getItemModelById(menu, selectedId);
            if (selectedModel != null) {
                initElement.setAttribute("selected-path", getItemPath(menu.getModel(), selectedModel));
            }
        }
        
        Color background = (Color) menu.getRenderProperty(DropDownMenu.PROPERTY_BACKGROUND);
        if (background != null) {
            initElement.setAttribute("background", ColorRender.renderCssAttributeValue(background));
        }
        FillImage backgroundImage = (FillImage) menu.getRenderProperty(DropDownMenu.PROPERTY_BACKGROUND_IMAGE);
        if (backgroundImage != null) {
            CssStyle cssStyle = new CssStyle();
            FillImageRender.renderToStyle(cssStyle, rc, this, menu, IMAGE_ID_BACKGROUND, backgroundImage, 0);
            initElement.setAttribute("background-image", cssStyle.renderInline());
        }
        Color foreground = (Color) menu.getRenderProperty(DropDownMenu.PROPERTY_FOREGROUND);
        if (foreground != null) {
            initElement.setAttribute("foreground", ColorRender.renderCssAttributeValue(foreground));
        }
        Extent height = (Extent) menu.getRenderProperty(DropDownMenu.PROPERTY_HEIGHT);
        if (height != null) {
            initElement.setAttribute("height", ExtentRender.renderCssAttributeValue(height));
        }
        Extent width = (Extent) menu.getRenderProperty(DropDownMenu.PROPERTY_WIDTH);
        if (width != null) {
            initElement.setAttribute("width", ExtentRender.renderCssAttributeValue(width));
        }
        Color menuBackground = (Color) menu.getRenderProperty(DropDownMenu.PROPERTY_MENU_BACKGROUND);
        if (menuBackground != null) {
            initElement.setAttribute("menu-background", ColorRender.renderCssAttributeValue(menuBackground));
        }
        FillImage menuBackgroundImage = (FillImage) menu.getRenderProperty(DropDownMenu.PROPERTY_MENU_BACKGROUND_IMAGE);
        if (menuBackgroundImage != null) {
            CssStyle cssStyle = new CssStyle();
            FillImageRender.renderToStyle(cssStyle, rc, this, menu, IMAGE_ID_MENU_BACKGROUND, menuBackgroundImage, 0);
            initElement.setAttribute("menu-background-image", cssStyle.renderInline());
        }
        Color selectionBackground = (Color) menu.getRenderProperty(DropDownMenu.PROPERTY_SELECTION_BACKGROUND);
        if (selectionBackground != null) {
            initElement.setAttribute("selection-background", ColorRender.renderCssAttributeValue(selectionBackground));
        }
        FillImage selectionBackgroundImage = (FillImage) menu.getRenderProperty(DropDownMenu.PROPERTY_SELECTION_BACKGROUND_IMAGE);
        if (selectionBackgroundImage != null) {
            CssStyle cssStyle = new CssStyle();
            FillImageRender.renderToStyle(cssStyle, rc, this, menu, IMAGE_ID_SELECTION_BACKGROUND, selectionBackgroundImage, 0);
            initElement.setAttribute("selection-background-image", cssStyle.renderInline());
        }
        Color selectionForeground = (Color) menu.getRenderProperty(DropDownMenu.PROPERTY_SELECTION_FOREGROUND);
        if (selectionForeground != null) {
            initElement.setAttribute("selection-foreground", ColorRender.renderCssAttributeValue(selectionForeground));
        }
        Color disabledBackground = (Color) menu.getRenderProperty(DropDownMenu.PROPERTY_DISABLED_BACKGROUND);
        if (disabledBackground != null) {
            initElement.setAttribute("disabled-background", ColorRender.renderCssAttributeValue(disabledBackground));
        }
        FillImage disabledBackgroundImage = (FillImage) menu.getRenderProperty(DropDownMenu.PROPERTY_DISABLED_BACKGROUND_IMAGE);
        if (disabledBackgroundImage != null) {
            CssStyle cssStyle = new CssStyle();
            FillImageRender.renderToStyle(cssStyle, rc, this, menu, IMAGE_ID_DISABLED_BACKGROUND, disabledBackgroundImage, 0);
            initElement.setAttribute("disabled-background-image", cssStyle.renderInline());
        }
        Color disabledForeground = (Color) menu.getRenderProperty(DropDownMenu.PROPERTY_DISABLED_FOREGROUND);
        if (disabledForeground != null) {
            initElement.setAttribute("disabled-foreground", ColorRender.renderCssAttributeValue(disabledForeground));
        }
        
        initElement.setAttribute("submenu-image", ImageTools.getUri(rc, this, menu, IMAGE_ID_SUBMENU_RIGHT));

        initElement.setAttribute("icon-toggle-off", ImageTools.getUri(rc, this, menu, IMAGE_ID_TOGGLE_OFF));
        initElement.setAttribute("icon-toggle-on", ImageTools.getUri(rc, this, menu, IMAGE_ID_TOGGLE_ON));
        initElement.setAttribute("icon-radio-off", ImageTools.getUri(rc, this, menu, IMAGE_ID_RADIO_OFF));
        initElement.setAttribute("icon-radio-on", ImageTools.getUri(rc, this, menu, IMAGE_ID_RADIO_ON));
        initElement.setAttribute("expand-icon", ImageTools.getUri(rc, this, menu, IMAGE_ID_EXPAND_ICON));
               
        if (menu.getRenderProperty(DropDownMenu.PROPERTY_DISABLED_EXPAND_ICON) != null) {
            initElement.setAttribute("disabled-expand-icon", ImageTools.getUri(rc, this, menu, IMAGE_ID_DISABLED_EXPAND_ICON));
        }
        
        renderModel(rc, menu, menu.getModel(), initElement);
        
        partElement.appendChild(initElement);
    }
}