htmltabbedpanerenderer.java

一个使用struts+hibernate+spring开发的完的网站源代码。

            {
                String paramName = tabbedPane.getClientId(facesContext) + "." + tabIdx;
                String paramValue = (String)paramMap.get(paramName);
                if (paramValue != null && paramValue.length() > 0)
                {
                    tabbedPane.queueEvent(new TabChangeEvent(tabbedPane,
                                                             tabbedPane.getSelectedIndex(),
                                                             tabIdx));
                    return;
                }
                tabIdx++;
            }
        }
    }


    protected void writeFormStart(ResponseWriter writer,
                                  FacesContext facesContext,
                                  UIComponent tabbedPane)
        throws IOException
    {
        ViewHandler viewHandler = facesContext.getApplication().getViewHandler();
        String viewId = facesContext.getViewRoot().getViewId();
        String actionURL = viewHandler.getActionURL(facesContext, viewId);

        //write out auto form
        writer.startElement(HTML.FORM_ELEM, null);
        writer.writeAttribute(HTML.NAME_ATTR, tabbedPane.getClientId(facesContext) + AUTO_FORM_SUFFIX, null);
        writer.writeAttribute(HTML.STYLE_ATTR, "display:inline", null);
        writer.writeAttribute(HTML.METHOD_ATTR, "post", null);
        writer.writeURIAttribute(HTML.ACTION_ATTR,
                                 facesContext.getExternalContext().encodeActionURL(actionURL),
                                 null);
        writer.flush();
    }


    protected void writeTableStart(ResponseWriter writer,
                                   FacesContext facesContext,
                                   HtmlPanelTabbedPane tabbedPane)
        throws IOException
    {
        String oldStyle = tabbedPane.getStyle();
        if (oldStyle == null)
        {
            tabbedPane.setStyle(TABLE_STYLE);
        }
        else
        {
            tabbedPane.setStyle(TABLE_STYLE + "; " + oldStyle);
        }

        String oldBgColor = tabbedPane.getBgcolor();
        tabbedPane.setBgcolor(null);

        writer.startElement(HTML.TABLE_ELEM, tabbedPane);
        writer.writeAttribute(HTML.CELLSPACING_ATTR, "0", null);
        HtmlRendererUtils.renderHTMLAttributes(writer, tabbedPane, HTML.TABLE_PASSTHROUGH_ATTRIBUTES);
        writer.flush();

        tabbedPane.setStyle(oldStyle);
        tabbedPane.setBgcolor(oldBgColor);
    }


    protected void writeHeaderCell(ResponseWriter writer,
                                   FacesContext facesContext,
                                   HtmlPanelTabbedPane tabbedPane,
                                   HtmlPanelTab tab,
                                   int tabIndex,
                                   boolean active,
                                   boolean disabled)
        throws IOException
    {
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        HtmlRendererUtils.writePrettyIndent(facesContext);
        writer.startElement(HTML.TD_ELEM, tabbedPane);
        if (active)
        {
            writer.writeAttribute(HTML.STYLE_ATTR,
                                  ACTIVE_HEADER_CELL_STYLE + "background-color:" + tabbedPane.getBgcolor(),
                                  null);

            HtmlRendererUtils.renderHTMLAttribute(writer, tabbedPane, "activeTabStyleClass", HTML.STYLE_CLASS_ATTR);
        }
        else if (disabled)
        {
            writer.writeAttribute(HTML.STYLE_ATTR,
                                  INACTIVE_HEADER_CELL_STYLE,
                                  null);
            HtmlRendererUtils.renderHTMLAttribute(writer, tabbedPane, "disabledTabStyleClass", HTML.STYLE_CLASS_ATTR);
        }
        else
        {
            writer.writeAttribute(HTML.STYLE_ATTR,
                                  INACTIVE_HEADER_CELL_STYLE,
                                  null);
            HtmlRendererUtils.renderHTMLAttribute(writer, tabbedPane, "inactiveTabStyleClass", HTML.STYLE_CLASS_ATTR);
        }


        String label = tab.getLabel();
        if (label == null || label.length() == 0)
        {
            label = "Tab " + tabIndex;
        }

        if (disabled) {
            writer.startElement(HTML.LABEL_ELEM, tabbedPane);
            writer.writeAttribute(HTML.NAME_ATTR, tabbedPane.getClientId(facesContext) + "." + tabIndex, null);
            writer.writeAttribute(HTML.STYLE_ATTR, BUTTON_STYLE_DISABLED, null);
            writer.writeText(label, null);
            writer.endElement(HTML.LABEL_ELEM);
        } else {
            //Button
            writer.startElement(HTML.INPUT_ELEM, tabbedPane);
            writer.writeAttribute(HTML.TYPE_ATTR, "submit", null);
            writer.writeAttribute(HTML.NAME_ATTR, tabbedPane.getClientId(facesContext) + "." + tabIndex, null);
            writer.writeAttribute(HTML.VALUE_ATTR, label, null);

            if (active)
            {
                writer.writeAttribute(HTML.STYLE_ATTR,
                    BUTTON_STYLE_ACTIVE + "background-color:" + tabbedPane.getBgcolor(),
                    null);
            }
            else
            {
                writer.writeAttribute(HTML.STYLE_ATTR,
                    BUTTON_STYLE_INACTIVE,
                    null);
            }
            writer.endElement(HTML.INPUT_ELEM);
        }
        writer.endElement(HTML.TD_ELEM);
    }


    protected void writeSubHeaderCells(ResponseWriter writer,
                                       FacesContext facesContext,
                                       HtmlPanelTabbedPane tabbedPane,
                                       int visibleTabCount,
                                       int visibleTabSelectedIndex,
                                       boolean disabled)
            throws IOException
    {
        StringBuffer buf = new StringBuffer();
        for (int i = 0, cnt = visibleTabCount + 1; i < cnt; i++)
        {
            HtmlRendererUtils.writePrettyLineSeparator(facesContext);
            HtmlRendererUtils.writePrettyIndent(facesContext);
            writer.startElement(HTML.TD_ELEM, tabbedPane);
            buf.setLength(0);
            buf.append(SUB_HEADER_CELL_STYLE);
            buf.append("border-top:").append(i == visibleTabSelectedIndex ? NO_BORDER_STYLE : BORDER_STYLE);
            buf.append("border-right:").append(i + 1 < cnt ? NO_BORDER_STYLE : BORDER_STYLE);
            buf.append("border-left:").append(i > 0 ? NO_BORDER_STYLE : BORDER_STYLE);
            buf.append("background-color:").append(tabbedPane.getBgcolor());
            writer.writeAttribute(HTML.STYLE_ATTR, buf.toString(), null);

            if (i == visibleTabSelectedIndex) {
                HtmlRendererUtils.renderHTMLAttribute(writer, tabbedPane, "activeSubStyleClass", HTML.STYLE_CLASS_ATTR);
            } else {
                HtmlRendererUtils.renderHTMLAttribute(writer, tabbedPane, "inactiveSubStyleClass", HTML.STYLE_CLASS_ATTR);
            }

            writer.write("&#160;");
            writer.endElement(HTML.TD_ELEM);
        }
    }


    protected void writeTabCell(ResponseWriter writer,
                                FacesContext facesContext,
                                HtmlPanelTabbedPane tabbedPane,
                                int tabCount,
                                int selectedIndex)
        throws IOException
    {
        HtmlRendererUtils.writePrettyLineSeparator(facesContext);
        HtmlRendererUtils.writePrettyIndent(facesContext);
        writer.startElement(HTML.TD_ELEM, tabbedPane);
        writer.writeAttribute(HTML.COLSPAN_ATTR, Integer.toString(tabCount + 1), null);
        writer.writeAttribute(HTML.STYLE_ATTR, TAB_CELL_STYLE + "background-color:" + tabbedPane.getBgcolor(), null);
        HtmlRendererUtils.renderHTMLAttribute(writer, tabbedPane, "tabContentStyleClass", HTML.STYLE_CLASS_ATTR);

        int tabIdx = 0;
        List children = tabbedPane.getChildren();
        for (int i = 0, len = children.size(); i < len; i++)
        {
            UIComponent child = getUIComponent((UIComponent)children.get(i));
            if (child instanceof HtmlPanelTab)
            {
                if (tabIdx == selectedIndex)
                {
                    RendererUtils.renderChild(facesContext, child);
                }
                tabIdx++;
            }
            else
            {
                RendererUtils.renderChild(facesContext, child);
            }
        }

        writer.endElement(HTML.TD_ELEM);
    }

    private UIComponent getUIComponent(UIComponent uiComponent)
    {
        if (uiComponent instanceof UIForm || uiComponent instanceof UINamingContainer)
        {
            List children = uiComponent.getChildren();
            for (int i = 0, len = children.size(); i < len; i++)
            {
                uiComponent = getUIComponent((UIComponent)children.get(i));
            }
        }
        return uiComponent;
    }


    protected void writeFormEnd(ResponseWriter writer,
                                FacesContext facesContext)
        throws IOException
    {
        //write state marker
        ViewHandler viewHandler = facesContext.getApplication().getViewHandler();
        viewHandler.writeState(facesContext);

        writer.endElement(HTML.FORM_ELEM);
    }


    protected boolean isDisabled(FacesContext facesContext, UIComponent uiComponent)
    {
        return !UserRoleUtils.isEnabledOnUserRole(uiComponent);
    }
}