com.googlecode.jtiger.modules.ecside.table.tool.PageSizeTool.java Source code

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Here is the source code for com.googlecode.jtiger.modules.ecside.table.tool.PageSizeTool.java

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/*
 * Copyright 2006-2007 original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.jtiger.modules.ecside.table.tool;

import org.apache.commons.lang.StringUtils;

import com.googlecode.jtiger.modules.ecside.core.ECSideConstants;
import com.googlecode.jtiger.modules.ecside.core.TableConstants;
import com.googlecode.jtiger.modules.ecside.core.TableModel;
import com.googlecode.jtiger.modules.ecside.preferences.PreferencesConstants;
import com.googlecode.jtiger.modules.ecside.util.HtmlBuilder;

/**
 * @author Wei Zijun
 *
 */

public class PageSizeTool extends BaseTool {

    public PageSizeTool() {
        super();
    }

    public PageSizeTool(HtmlBuilder html, TableModel model) {
        super(html, model);
    }

    public void buildTool() {

        getHtmlBuilder().td(1).styleClass("pageSizeTool").nowrap().close();

        getHtmlBuilder()
                .append(getTableModel().getMessages().getMessage(PreferencesConstants.TOOLBAR_PAGE_PERPAGE));
        rowsDisplayedDroplist();
        getHtmlBuilder().append(getTableModel().getMessages().getMessage(PreferencesConstants.TOOLBAR_PAGE_RECORD));

        getHtmlBuilder().tdEnd();

    }

    public void rowsDisplayedDroplist() {

        int allRowsDisplayed = getTableModel().getLimit().getTotalRows();
        int currentRowsDisplayed = getTableModel().getLimit().getCurrentRowsDisplayed();
        int rowsDisplayed = getTableModel().getTable().getRowsDisplayed();

        String pageSizeList = getTableModel().getTable().getPageSizeList();

        String[] sizeList = null;

        if (pageSizeList != null) {
            sizeList = StringUtils.split(pageSizeList, ",");
        }

        getHtmlBuilder().select()
                .name(getTableModel().getTableHandler().prefixWithTableId() + TableConstants.ROWS_DISPLAYED);

        String formId = getTableModel().getTable().getTableId();

        StringBuffer onchange = new StringBuffer();

        onchange.append(ECSideConstants.UTIL_FUNCTION_NAME + ".changeRowsDisplayed(");

        onchange.append("'" + formId + "',this);");

        getHtmlBuilder().onchange(onchange.toString());

        getHtmlBuilder().close();

        getHtmlBuilder().newline();
        getHtmlBuilder().tabs(4);

        int i = 0;
        int maxSize = Integer.MAX_VALUE;

        boolean hasDefaultSize = false;
        if (sizeList != null) {
            for (i = 0; i < sizeList.length; i++) {
                int size = 0;
                String text;
                if (sizeList[i].trim().toLowerCase().startsWith("max:")) {

                    try {
                        if (maxSize == Integer.MAX_VALUE) {
                            maxSize = new Integer(sizeList[i].substring(4)).intValue();
                        }
                    } catch (Exception e) {
                        maxSize = Integer.MAX_VALUE;
                    }
                    continue;
                } else if (allRowsDisplayed < maxSize && "all".equalsIgnoreCase(sizeList[i].trim())) {
                    size = allRowsDisplayed;
                    text = getTableModel().getMessages().getMessage(PreferencesConstants.TOOLBAR_PAGE_ALL);

                } else {
                    try {
                        size = Integer.parseInt(sizeList[i].trim());
                        text = String.valueOf(size);
                    } catch (Exception ei) {
                        continue;
                    }
                }
                if (!hasDefaultSize) {
                    hasDefaultSize = size == currentRowsDisplayed;
                }
                if (size <= maxSize) {
                    getHtmlBuilder().option().value(String.valueOf(size));
                    if (currentRowsDisplayed == size) {
                        getHtmlBuilder().selected();
                    }
                    getHtmlBuilder().close();
                    getHtmlBuilder().append(text);
                    getHtmlBuilder().optionEnd();
                }
            }
        }

        if (i == 0 || !hasDefaultSize) {
            // default rows
            if (rowsDisplayed > allRowsDisplayed) {
                rowsDisplayed = allRowsDisplayed;
            }
            getHtmlBuilder().option().value(String.valueOf(rowsDisplayed));
            if (currentRowsDisplayed == rowsDisplayed) {
                getHtmlBuilder().selected();
            }
            getHtmlBuilder().close();
            getHtmlBuilder().append(String.valueOf(rowsDisplayed));
            getHtmlBuilder().optionEnd();
        }

        getHtmlBuilder().newline();
        getHtmlBuilder().tabs(4);

        getHtmlBuilder().selectEnd();
    }

}