cmsdialogelements.java

OpenCms 是一个J2EE的产品

     */
    public void actionUpdateElements() throws JspException {

        try {
            List elementList = computeElements();
            CmsFile file = getCms().readFile(getParamTempfile(), CmsResourceFilter.IGNORE_EXPIRATION);
            CmsXmlPage page = CmsXmlPageFactory.unmarshal(getCms(), file);
            boolean foundMandatory = false;
            m_changeElement = "";
            Iterator i = elementList.iterator();
            while (i.hasNext()) {
                // get the current list element
                CmsDialogElement element = (CmsDialogElement)i.next();
                if (element.isMandantory()
                    || element.getName().equals(getParamElementname())
                    || Boolean.valueOf(getJsp().getRequest().getParameter(PREFIX_PARAM_BODY + element.getName())).booleanValue()) {
                    if (!element.isExisting()) {
                        // create element in order to enable it properly 
                        page.addValue(element.getName(), getElementLocale());
                    }
                    page.setEnabled(element.getName(), getElementLocale(), true);
                    if (element.isMandantory() && !foundMandatory) {
                        m_changeElement = element.getName();
                        foundMandatory = true;
                    }
                } else {
                    if (element.isExisting()) {
                        // remove element if it is already existing
                        page.removeValue(element.getName(), getElementLocale());
                    }
                }
            }
            // write the temporary file
            file.setContents(page.marshal());
            getCms().writeFile(file);
            // set the javascript functions which should be executed
            if (page.isEnabled(getParamElementname(), getElementLocale())) {
                m_changeElement = getParamElementname();
            } else if (!foundMandatory) {
                if (elementList.size() > 0) {
                    m_changeElement = ((CmsDialogElement)elementList.get(0)).getName();
                }
            }
        } catch (Throwable e) {
            // show error dialog
            setParamMessage(Messages.get().getBundle(getLocale()).key(Messages.ERR_UPDATE_ELEMENTS_0));
            includeErrorpage(this, e);
        }
    }

    /**
     * Builds the html String for a form list of all possible page elements.<p>
     * 
     * @return the html String for a form list
     */
    public String buildElementList() {

        StringBuffer retValue = new StringBuffer(512);
        retValue.append("<table border=\"0\">\n");
        retValue.append("<tr>\n");
        retValue.append("\t<td class=\"textbold\" unselectable=\"on\">"
            + key(Messages.GUI_EDITOR_DIALOG_ELEMENTS_PAGEELEMENT_0)
            + "</td>\n");
        retValue.append("\t<td class=\"textbold\" unselectable=\"on\">&nbsp;&nbsp;"
            + key(Messages.GUI_EDITOR_DIALOG_ELEMENTS_ENABLED_0)
            + "&nbsp;&nbsp;</td>\n");
        retValue.append("</tr>\n");
        retValue.append("<tr><td colspan=\"2\"><span style=\"height: 6px;\"></span></td></tr>\n");

        try {

            // get the list of all possible elements
            List elementList = computeElements();

            // get all present bodies from the temporary file
            CmsFile file = getCms().readFile(this.getParamTempfile(), CmsResourceFilter.IGNORE_EXPIRATION);
            CmsXmlPage page = CmsXmlPageFactory.unmarshal(getCms(), file);

            // show all possible elements
            Iterator i = elementList.iterator();
            while (i.hasNext()) {
                // get the current list element
                CmsDialogElement element = (CmsDialogElement)i.next();
                // build an element row
                retValue.append("<tr>\n");
                retValue.append("\t<td style=\"white-space: nowrap;\" unselectable=\"on\">" + element.getNiceName());
                retValue.append("</td>\n");
                retValue.append("\t<td class=\"textcenter\" unselectable=\"on\"><input type=\"checkbox\" name=\"");
                retValue.append(PREFIX_PARAM_BODY);
                retValue.append(element.getName());
                retValue.append("\" value=\"true\"");

                if ((!page.hasValue(element.getName(), getElementLocale()) && element.isMandantory())
                    || page.isEnabled(element.getName(), getElementLocale())) {
                    retValue.append(" checked=\"checked\"");
                }
                if (element.isMandantory() || element.getName().equals(getParamElementname())) {
                    retValue.append(" disabled=\"disabled\"");
                }
                retValue.append(">");
                retValue.append("<script type=\"text/javascript\">registerElement(\"");

                retValue.append(element.getName());
                retValue.append("\", ");
                retValue.append(page.isEnabled(element.getName(), getElementLocale()));
                retValue.append(");</script>");

                retValue.append("</td>\n");
                retValue.append("</tr>\n");
            }

        } catch (CmsException e) {
            // should usually never happen
            if (LOG.isInfoEnabled()) {
                LOG.info(e);
            }
        }

        retValue.append("</table>\n");
        return retValue.toString();
    }

    /**
     * Creates a list of possible elements of a template from the template property "template-elements".<p>
     * 
     * @return the list of elements in a String array with element name, nice name (if present) and mandatory flag
     */
    public List computeElements() {

        if (m_elementList == null) {
            m_elementList = computeElements(getCms(), getParamTempfile(), getElementLocale());
        }
        return m_elementList;
    }

    /**
     * Returns the element name that has to be changed.<p>
     * 
     * @return the element name that has to be changed
     */
    public String getChangeElement() {

        return m_changeElement;
    }

    /**
     * Returns the current element locale.<p>
     * 
     * @return the current element locale
     */
    public Locale getElementLocale() {

        if (m_elementLocale == null) {
            m_elementLocale = CmsLocaleManager.getLocale(getParamElementlanguage());
        }
        return m_elementLocale;
    }

    /**
     * Returns the current element language.<p>
     * 
     * @return the current element language
     */
    public String getParamElementlanguage() {

        return m_paramElementlanguage;
    }

    /**
     * Returns the current element name.<p>
     * 
     * @return the current element name
     */
    public String getParamElementname() {

        return m_paramElementname;
    }

    /**
     * Returns the name of the temporary file.<p>
     * 
     * @return the name of the temporary file
     */
    public String getParamTempfile() {

        return m_paramTempFile;
    }

    /**
     * Sets the current element language.<p>
     * 
     * @param elementLanguage the current element language
     */
    public void setParamElementlanguage(String elementLanguage) {

        m_paramElementlanguage = elementLanguage;
    }

    /**
     * Sets the current element name.<p>
     * 
     * @param elementName the current element name
     */
    public void setParamElementname(String elementName) {

        m_paramElementname = elementName;
    }

    /**
     * Sets the name of the temporary file.<p>
     * 
     * @param fileName the name of the temporary file
     */
    public void setParamTempfile(String fileName) {

        m_paramTempFile = fileName;
    }

    /**
     * @see org.opencms.workplace.CmsWorkplace#initWorkplaceRequestValues(org.opencms.workplace.CmsWorkplaceSettings, javax.servlet.http.HttpServletRequest)
     */
    protected void initWorkplaceRequestValues(CmsWorkplaceSettings settings, HttpServletRequest request) {

        // fill the parameter values in the get/set methods
        fillParamValues(request);
        // set the dialog type
        setParamDialogtype(DIALOG_TYPE);
        // set the action for the JSP switch 
        if (DIALOG_UPDATE_ELEMENTS.equals(getParamAction())) {
            setAction(ACTION_UPDATE_ELEMENTS);
        } else {
            setAction(ACTION_DEFAULT);
            // build title for delete dialog     
            setParamTitle(key(
                Messages.GUI_EDITOR_DIALOG_ELEMENTS_TITLE_1,
                new Object[] {CmsResource.getName(getParamResource())}));
        }
    }
}