com.qualogy.qafe.gwt.client.vo.handlers.ChangeStyleHandler.java Source code

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Here is the source code for com.qualogy.qafe.gwt.client.vo.handlers.ChangeStyleHandler.java

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/**
 * Copyright 2008-2015 Qualogy Solutions B.V.
 *
 * 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.qualogy.qafe.gwt.client.vo.handlers;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Queue;

import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.UIObject;
import com.qualogy.qafe.gwt.client.component.QWindowPanel;
import com.qualogy.qafe.gwt.client.context.ClientApplicationContext;
import com.qualogy.qafe.gwt.client.ui.renderer.RendererHelper;
import com.qualogy.qafe.gwt.client.util.ComponentRepository;
import com.qualogy.qafe.gwt.client.vo.functions.BuiltInComponentGVO;
import com.qualogy.qafe.gwt.client.vo.functions.BuiltInFunctionGVO;
import com.qualogy.qafe.gwt.client.vo.functions.ChangeStyleActionGVO;
import com.qualogy.qafe.gwt.client.vo.functions.ChangeStyleGVO;

public class ChangeStyleHandler extends AbstractBuiltInHandler {

    private static final String ACTION_REMOVE = "remove";
    private static final String ACTION_SET = "set";

    @Override
    protected BuiltInState executeBuiltIn(UIObject sender, String listenerType, Map<String, String> mouseInfo,
            BuiltInFunctionGVO builtInGVO, String appId, String windowId, String eventSessionId,
            Queue derivedBuiltIns) {
        ChangeStyleGVO changeStyleGVO = (ChangeStyleGVO) builtInGVO;
        changeStyle(changeStyleGVO, sender, appId, windowId, eventSessionId);
        return BuiltInState.EXECUTED;
    }

    private void changeStyle(ChangeStyleGVO changeStyleGVO, UIObject sender, String appId, String windowId,
            String eventSessionId) {
        List<BuiltInComponentGVO> components = changeStyleGVO.getComponents();
        if (components == null) {
            return;
        }

        for (BuiltInComponentGVO builtInComponentGVO : components) {
            List<UIObject> uiObjects = getUIObjects(builtInComponentGVO, appId, windowId, eventSessionId);

            if (uiObjects == null) { // Components within a window are not found. Check for SDI.
                uiObjects = checkSDIMode(uiObjects);
            }

            if (uiObjects == null) {
                continue;
            }

            for (UIObject object : uiObjects) {
                if (object == null) {
                    continue;
                }

                if (object instanceof QWindowPanel) {
                    object = ((QWindowPanel) object).getQRootPanel();
                }
                Element element = object.getElement();
                if (element == null) {
                    continue;
                }

                List<ChangeStyleActionGVO> actions = changeStyleGVO.getActions();
                if (actions == null) {
                    continue;
                }

                handleChangeStyle(object, element, actions);
            }
        }
    }

    private void handleChangeStyle(UIObject object, Element element, List<ChangeStyleActionGVO> actions) {
        for (ChangeStyleActionGVO changeStyleAction : actions) {
            String action = changeStyleAction.getAction().toLowerCase();
            String key = changeStyleAction.getKey();
            String style = changeStyleAction.getStyle();

            if (ACTION_REMOVE.equals(action)) {
                if (key != null && key.trim().length() > 0) {
                    RendererHelper.setStyleForElement(element, key, null);
                }
                if (style != null && style.trim().length() > 0) {
                    object.removeStyleName(style);
                }
            } else if (ACTION_SET.equals(action)) {
                if (key != null && key.trim().length() > 0) {
                    RendererHelper.setStyleForElement(element, key, changeStyleAction.getValue());
                }
                if (style != null && style.trim().length() > 0) {
                    object.addStyleName(style);
                }
            }
        }
    }

    private List<UIObject> checkSDIMode(List<UIObject> uiObjects) {
        if (!(ClientApplicationContext.getInstance().isMDI())) {
            UIObject mainPanel = ClientApplicationContext.getInstance().getMainPanel().getWidget();
            uiObjects = new ArrayList<UIObject>();
            if (mainPanel != null) {
                uiObjects.add(mainPanel);
            }
        }
        return uiObjects;
    }

    private List<UIObject> getUIObjects(BuiltInComponentGVO builtInComponentGVO, String appId, String windowId,
            String eventSessionId) {
        List<UIObject> uiObjects = null;
        String componentId = builtInComponentGVO.getComponentId();
        componentId = resolveVariables(componentId, null, eventSessionId);
        String key = generateId(componentId, windowId, appId, eventSessionId);
        uiObjects = ComponentRepository.getInstance().getComponent(key);
        if (uiObjects != null) {
            return uiObjects;
        }

        String componentName = builtInComponentGVO.getComponentName();
        key = generateId(componentName, windowId, appId, eventSessionId);
        uiObjects = ComponentRepository.getInstance().getNamedComponent(key);
        return uiObjects;
    }
}