com.sencha.gxt.theme.base.client.grid.RowExpanderDefaultAppearance.java Source code

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Here is the source code for com.sencha.gxt.theme.base.client.grid.RowExpanderDefaultAppearance.java

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/**
 * Sencha GXT 4.0.0 - Sencha for GWT
 * Copyright (c) 2006-2015, Sencha Inc.
 *
 * licensing@sencha.com
 * http://www.sencha.com/products/gxt/license/
 *
 * ================================================================================
 * Open Source License
 * ================================================================================
 * This version of Sencha GXT is licensed under the terms of the Open Source GPL v3
 * license. You may use this license only if you are prepared to distribute and
 * share the source code of your application under the GPL v3 license:
 * http://www.gnu.org/licenses/gpl.html
 *
 * If you are NOT prepared to distribute and share the source code of your
 * application under the GPL v3 license, other commercial and oem licenses
 * are available for an alternate download of Sencha GXT.
 *
 * Please see the Sencha GXT Licensing page at:
 * http://www.sencha.com/products/gxt/license/
 *
 * For clarification or additional options, please contact:
 * licensing@sencha.com
 * ================================================================================
 *
 *
 * ================================================================================
 * Disclaimer
 * ================================================================================
 * THIS SOFTWARE IS DISTRIBUTED "AS-IS" WITHOUT ANY WARRANTIES, CONDITIONS AND
 * REPRESENTATIONS WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE
 * IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, MERCHANTABLE QUALITY,
 * FITNESS FOR A PARTICULAR PURPOSE, DURABILITY, NON-INFRINGEMENT, PERFORMANCE AND
 * THOSE ARISING BY STATUTE OR FROM CUSTOM OR USAGE OF TRADE OR COURSE OF DEALING.
 * ================================================================================
 */
package com.sencha.gxt.theme.base.client.grid;

import com.google.gwt.cell.client.Cell.Context;
import com.google.gwt.core.client.GWT;
import com.google.gwt.resources.client.ClientBundle;
import com.google.gwt.resources.client.CssResource;
import com.google.gwt.resources.client.CssResource.Import;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.resources.client.ImageResource.ImageOptions;
import com.google.gwt.resources.client.ImageResource.RepeatStyle;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.sencha.gxt.core.client.dom.XElement;
import com.sencha.gxt.core.client.resources.StyleInjectorHelper;
import com.sencha.gxt.widget.core.client.grid.GridView.GridStateStyles;
import com.sencha.gxt.widget.core.client.grid.RowExpander.RowExpanderAppearance;

public class RowExpanderDefaultAppearance<M> implements RowExpanderAppearance<M> {

    public interface RowExpanderResources extends ClientBundle {
        @Import(GridStateStyles.class)
        @Source("RowExpander.gss")
        RowExpanderStyle style();

        @ImageOptions(repeatStyle = RepeatStyle.Vertical)
        ImageResource specialColumn();

        @ImageOptions(repeatStyle = RepeatStyle.Vertical)
        ImageResource specialColumnSelected();
    }

    public interface RowExpanderStyle extends CssResource {
        String rowCollapsed();

        String rowExpanded();

        String rowExpander();

        String hasExpander();

        String cell();
    }

    private final RowExpanderResources resources;
    private final RowExpanderStyle style;

    public RowExpanderDefaultAppearance() {
        this(GWT.<RowExpanderResources>create(RowExpanderResources.class));
    }

    public RowExpanderDefaultAppearance(RowExpanderResources resources) {
        this.resources = resources;
        this.style = this.resources.style();

        StyleInjectorHelper.ensureInjected(style, false);
    }

    @Override
    public void finishInit(XElement gridParent) {
        gridParent.addClassName(style.hasExpander());
    }

    @Override
    public String getCellClassName() {
        return style.cell();
    }

    @Override
    public String getRowStyles(M model, int rowIndex) {
        return style.rowCollapsed();
    }

    @Override
    public boolean isExpanded(XElement row) {
        return row.hasClassName(style.rowExpanded());
    }

    @Override
    public void onExpand(XElement row, boolean expand) {
        if (expand) {
            row.replaceClassName(style.rowCollapsed(), style.rowExpanded());
        } else {
            row.replaceClassName(style.rowExpanded(), style.rowCollapsed());
        }
    }

    @Override
    public void renderExpander(Context context, M value, SafeHtmlBuilder sb) {
        sb.appendHtmlConstant("<div class='" + style.rowExpander() + "'>&nbsp;</div>");
    }

    @Override
    public boolean isExpandElement(XElement target) {
        return target.hasClassName(style.rowExpander());
    }

}