Java tutorial
/******************************************************************************* * Copyright 2013 Ednovo d/b/a Gooru. All rights reserved. * * http://www.goorulearning.org/ * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ******************************************************************************/ package org.ednovo.gooru.client.mvp.classpages.newclasspage; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.ednovo.gooru.application.client.PlaceTokens; import org.ednovo.gooru.application.client.gin.AppClientFactory; import org.ednovo.gooru.application.shared.i18n.MessageProperties; import org.ednovo.gooru.client.SimpleAsyncCallback; import org.ednovo.gooru.client.mvp.gsearch.events.UpdateFilterEvent; import org.ednovo.gooru.client.mvp.gsearch.events.UpdateFilterHandler; import org.ednovo.gooru.client.mvp.gsearch.util.GooruGradesPresenter; import org.ednovo.gooru.client.mvp.search.event.SetHeaderZIndexEvent; import org.ednovo.gooru.client.uc.AppPopUp; import org.ednovo.gooru.client.uc.H4Panel; import org.ednovo.gooru.client.uc.PPanel; import org.ednovo.gooru.client.ui.HTMLEventPanel; import org.ednovo.gooru.shared.util.StringUtil; import com.google.gwt.core.client.GWT; import com.google.gwt.dom.client.Style.Unit; import com.google.gwt.event.dom.client.BlurEvent; import com.google.gwt.event.dom.client.BlurHandler; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.dom.client.KeyUpEvent; import com.google.gwt.event.dom.client.KeyUpHandler; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.Widget; /** * @fileName : NewClassPopupView.java * * @description : * * * @version : 1.0 * * @date: 24-Jun-2015 * * @Author tumbalam * * @Reviewer: */ public abstract class NewClassPopupView extends AppPopUp { private static NewClassPopupViewUiBinder uiBinder = GWT.create(NewClassPopupViewUiBinder.class); MessageProperties i18n = GWT.create(MessageProperties.class); @UiField(provided = true) NewClasspagePopupCBundle res; @UiField Label mandatoryClasspageTitleLbl; @UiField Button btnCancel, btnAdd; @UiField TextBox classpageTitleTxt; @UiField Label panelLoading; @UiField H4Panel headerPanel; @UiField PPanel titlePanel, gradePanel, visiblityPanel; @UiField HTMLPanel panelControls, popupHeader, panelPleaseWait, gradeWidget, gradeBlock; GooruGradesPresenter gooruGradesPresenterWidget = AppClientFactory.getInjector().getGooruGradePresenter(); @UiField Label anyonwwithLink, anyonwwithLinkTxt, privateLbl, privateLblTxt; @UiField HTMLEventPanel publicPanel, privatePanel; private static final List<String> gradeList = new ArrayList<String>(); String grades; boolean sharing; interface NewClassPopupViewUiBinder extends UiBinder<Widget, NewClassPopupView> { } public abstract void createNewClasspage(String title, String grade, boolean sharing); public NewClassPopupView() { this.res = NewClasspagePopupCBundle.INSTANCE; res.css().ensureInjected(); setWidget(uiBinder.createAndBindUi(this)); setModal(true); AppClientFactory.getEventBus().addHandler(UpdateFilterEvent.TYPE, updatefilter); //this.getElement().getStyle().setWidth(450,Unit.PX); btnCancel.addClickHandler(new CloseExistsClickHandler()); btnAdd.addClickHandler(new AddExistsClickHandler()); classpageTitleTxt.getElement().setAttribute("placeholder", i18n.GL1124()); classpageTitleTxt.getElement().setAttribute("maxlength", "50"); classpageTitleTxt.getElement().setId("txtClassPageTitle"); StringUtil.setAttributes(classpageTitleTxt, true); //bodyConatiner.getElement().getStyle().setPadding(15, Unit.PX); titlePanel.getElement().getStyle().setMarginBottom(10, Unit.PX); btnAdd.getElement().setId("btnAdd"); btnAdd.setText(i18n.GL0590()); btnAdd.getElement().setAttribute("alt", i18n.GL0590()); btnAdd.getElement().setAttribute("title", i18n.GL0590()); publicPanel.getElement().setId("panelPublic"); publicPanel.getElement().setAttribute("alt", "public"); publicPanel.getElement().setAttribute("title", "public"); privatePanel.getElement().setId("panelPrivate"); publicPanel.getElement().setAttribute("alt", "public"); publicPanel.getElement().setAttribute("title", "public"); /*btnCancel.setText(i18n.GL0142()); btnCancel.getElement().setId("btnCancel"); btnCancel.getElement().setAttribute("alt",i18n.GL0142()); btnCancel.getElement().setAttribute("title",i18n.GL0142());*/ anyonwwithLink.getElement().setInnerText(i18n.GL3338()); anyonwwithLinkTxt.getElement().setInnerText(i18n.GL3339()); privateLbl.getElement().setInnerText(i18n.GL3340()); privateLblTxt.getElement().setInnerText(i18n.GL3341()); titlePanel.getElement().setInnerText(i18n.GL3450_10()); titlePanel.getElement().setId("pnlTitle"); titlePanel.getElement().setAttribute("alt", i18n.GL3450_10()); titlePanel.getElement().setAttribute("title", i18n.GL3450_10()); gradePanel.getElement().setInnerText(i18n.GL0325()); gradePanel.getElement().setId("pnlGrade"); gradePanel.getElement().setAttribute("alt", i18n.GL0325()); gradePanel.getElement().setAttribute("title", i18n.GL0325()); visiblityPanel.getElement().setInnerText(i18n.GL3342()); visiblityPanel.getElement().setId("pnlVisiblity"); visiblityPanel.getElement().setAttribute("alt", i18n.GL3342()); visiblityPanel.getElement().setAttribute("title", i18n.GL3342()); headerPanel.getElement().setInnerText(i18n.GL1771()); headerPanel.getElement().setId("pnlHeader"); headerPanel.getElement().setAttribute("alt", i18n.GL0747()); headerPanel.getElement().setAttribute("title", i18n.GL0747()); mandatoryClasspageTitleLbl.setText(i18n.GL0746()); mandatoryClasspageTitleLbl.getElement().setId("lblMandatoryClasspageTitle"); mandatoryClasspageTitleLbl.getElement().setAttribute("alt", i18n.GL0746()); mandatoryClasspageTitleLbl.getElement().setAttribute("title", i18n.GL0746()); classpageTitleTxt.addBlurHandler(new BlurHandler() { @Override public void onBlur(BlurEvent event) { Map<String, String> parms = new HashMap<String, String>(); parms.put("text", classpageTitleTxt.getText()); AppClientFactory.getInjector().getResourceService().checkProfanity(parms, new SimpleAsyncCallback<Boolean>() { @Override public void onSuccess(Boolean value) { boolean isHavingBadWords = value; if (value) { classpageTitleTxt.getElement().getStyle().setBorderColor("orange"); mandatoryClasspageTitleLbl.setText(i18n.GL0554()); mandatoryClasspageTitleLbl.setVisible(true); } else { classpageTitleTxt.getElement().getStyle().clearBackgroundColor(); classpageTitleTxt.getElement().getStyle().setBorderColor("#ccc"); mandatoryClasspageTitleLbl.setVisible(false); } } }); } }); classpageTitleTxt.addKeyUpHandler(new TitleKeyUpHandler()); Window.enableScrolling(false); AppClientFactory.fireEvent(new SetHeaderZIndexEvent(98, false)); mandatoryClasspageTitleLbl.setVisible(false); panelPleaseWait.setVisible(false); panelLoading.setText(i18n.GL0122()); panelControls.setVisible(true); classpageTitleTxt.setFocus(true); panelLoading.getElement().setId("pnlLoading"); panelControls.getElement().setId("pnlControls"); gradeWidget.getElement().setId("gooruSearchMainContainer"); popupHeader.getElement().setId("create-class-popup"); gooruGradesPresenterWidget.setPageType("newclass"); gooruGradesPresenterWidget.getView().getGradeHeader().setVisible(false); gradeBlock.add(gooruGradesPresenterWidget.getWidget()); publicPanel.addClickHandler(new SharingVisiblityClickHandler(publicPanel)); privatePanel.addClickHandler(new SharingVisiblityClickHandler(privatePanel)); show(); center(); } UpdateFilterHandler updatefilter = new UpdateFilterHandler() { @Override public void updateFilters(String filterValue, String addOrRemove, String page) { if ("newclass".equalsIgnoreCase(page)) { String grade = filterValue.replace("Grade ", ""); if ("add".equals(addOrRemove)) { gradeList.add(grade); } else { gradeList.remove(grade); } } } }; /** * * @fileName : NewClasspagePopupView.java * * @description : * * * @version : 1.0 * * @date: 07-Dec-2014 * * @Author Gooru Team * * @Reviewer: */ private class TitleKeyUpHandler implements KeyUpHandler { public void onKeyUp(KeyUpEvent event) { classpageTitleTxt.getElement().getStyle().clearBackgroundColor(); classpageTitleTxt.getElement().getStyle().setBorderColor("#ccc"); mandatoryClasspageTitleLbl.setVisible(false); if (classpageTitleTxt.getText().length() >= 50) { mandatoryClasspageTitleLbl.setText(i18n.GL0143()); mandatoryClasspageTitleLbl.setVisible(true); } } } /** * * @fileName : NewClasspagePopupView.java * * @description : * * * @version : 1.0 * * @date: 07-Dec-2014 * * @Author Gooru Team * * @Reviewer: */ private class CloseExistsClickHandler implements ClickHandler { @Override public void onClick(ClickEvent event) { hide(); if (AppClientFactory.getPlaceManager().getCurrentPlaceRequest().getNameToken() .equalsIgnoreCase(PlaceTokens.SEARCH_COLLECTION) || AppClientFactory.getPlaceManager().getCurrentPlaceRequest().getNameToken() .equalsIgnoreCase(PlaceTokens.SEARCH_RESOURCE)) { Window.enableScrolling(false); } else { Window.enableScrolling(true); } AppClientFactory.fireEvent(new SetHeaderZIndexEvent(0, true)); } } /** * * @fileName : NewClasspagePopupView.java * * @description : * Click event to handle Add existing resource/collection item to collection. * * @version : 1.0 * * @date: 07-Dec-2014 * * @Author Gooru Team * * @Reviewer: */ private class AddExistsClickHandler implements ClickHandler { @Override public void onClick(ClickEvent event) { if (validateFields()) { final String title = classpageTitleTxt.getText().trim(); final String grade = join(gradeList, ","); final boolean privacy = sharing; Map<String, String> parms = new HashMap<String, String>(); parms.put("text", title); AppClientFactory.getInjector().getResourceService().checkProfanity(parms, new SimpleAsyncCallback<Boolean>() { @Override public void onSuccess(Boolean value) { boolean isHavingBadWords = value; if (isHavingBadWords) { classpageTitleTxt.getElement().getStyle().setBorderColor("orange"); } else { createNewClasspage(title, grade, sharing); panelControls.setVisible(false); panelLoading.setVisible(true); panelPleaseWait.setVisible(true); classpageTitleTxt.getElement().getStyle().clearBackgroundColor(); classpageTitleTxt.getElement().getStyle().setBorderColor("#ccc"); } } }); } } } /** * * @function validateFields * * @created_date : 07-Dec-2014 * * @description * * * @parm(s) : @return * * @return : boolean * * @throws : <Mentioned if any exceptions> * * * * */ public boolean validateFields() { boolean isValid = true; String title = classpageTitleTxt.getText().trim(); if (title == null || title.equalsIgnoreCase("")) { mandatoryClasspageTitleLbl.setVisible(true); return false; } if (publicPanel.getStyleName().contains("active")) { sharing = true; } else if (privatePanel.getStyleName().contains("active")) { sharing = false; } else { return false; } return isValid; } /** * * @function ClosePopup * * @created_date : 07-Dec-2014 * * @description * * * @parm(s) : * * @return : void * * @throws : <Mentioned if any exceptions> * * * * */ public void ClosePopup() { Window.enableScrolling(true); AppClientFactory.fireEvent(new SetHeaderZIndexEvent(0, true)); panelPleaseWait.setVisible(false); hide(); } private class SharingVisiblityClickHandler implements ClickHandler { HTMLEventPanel eventPanel; public SharingVisiblityClickHandler(HTMLEventPanel eventPanel) { this.eventPanel = eventPanel; } /* (non-Javadoc) * @see com.google.gwt.event.dom.client.ClickHandler#onClick(com.google.gwt.event.dom.client.ClickEvent) */ @Override public void onClick(ClickEvent event) { String id = eventPanel.getElement().getId(); if (!eventPanel.getStyleName().contains("active")) { if (id.equalsIgnoreCase("panelPublic")) { publicPanel.addStyleName("active"); privatePanel.removeStyleName("active"); } else { privatePanel.addStyleName("active"); publicPanel.removeStyleName("active"); } } } } private String join(List<?> list, String separator) { StringBuilder builder = null; if (list != null) { builder = new StringBuilder(); for (Object value : list) { if (builder.length() > 0) { builder.append(separator); } builder.append(value); } } return builder.toString(); } }