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.profilepage.data; import java.util.ArrayList; import java.util.Iterator; import org.ednovo.gooru.client.PlaceTokens; import org.ednovo.gooru.client.child.ChildView; import org.ednovo.gooru.client.gin.AppClientFactory; import org.ednovo.gooru.client.mvp.profilepage.data.item.LeftMenuItemView; import org.ednovo.gooru.client.mvp.profilepage.data.item.ProfileTopicListView; import org.ednovo.gooru.shared.i18n.MessageProperties; import org.ednovo.gooru.shared.model.content.CollectionItemDo; import org.ednovo.gooru.shared.model.library.ProfileLibraryDo; import org.ednovo.gooru.shared.model.library.ProfileLibraryListDo; import org.ednovo.gooru.shared.util.StringUtil; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.uibinder.client.UiHandler; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.Window.ScrollEvent; import com.google.gwt.user.client.Window.ScrollHandler; 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.Widget; /** * @author Gooru Team * */ public class ProfilePageLibraryView extends ChildView<ProfilePageLibraryPresenter> implements IsProfilePageLibraryView { @UiField HTMLPanel leftNav, contentScroll, emptyContainer, loadingIconPanel; @UiField ProfilePageLibraryStyleBundle style; @UiField Label noCollectionsMsg, collectionsRedirectionMsg; @UiField Button myCollectionsBtn; private static final String FOLDERID = "folderId"; private String unitListId = ""; ProfilePageLibraryPresenter profilePageLibraryPresenter = null; private int totalLeftPanelCount = 0; private boolean isApiProgress = true; private static ProfilePageLibraryViewUiBinder uiBinder = GWT.create(ProfilePageLibraryViewUiBinder.class); interface ProfilePageLibraryViewUiBinder extends UiBinder<Widget, ProfilePageLibraryView> { } private MessageProperties i18n = GWT.create(MessageProperties.class); /** * Class constructor * @param collectionItem * instance of {@link CollectionItemDo} */ public ProfilePageLibraryView() { initWidget(uiBinder.createAndBindUi(this)); setPresenter(new ProfilePageLibraryPresenter(this)); emptyContainer.setVisible(false); setMetaData(); Window.addWindowScrollHandler(new LeftPanelScroll()); } private void setMetaData() { myCollectionsBtn.setText(i18n.GL1789()); myCollectionsBtn.getElement().setId("btnMyCollectionsBtn"); myCollectionsBtn.getElement().setAttribute("alt", i18n.GL1789()); myCollectionsBtn.getElement().setAttribute("title", i18n.GL1789()); collectionsRedirectionMsg.setText(i18n.GL1788()); collectionsRedirectionMsg.getElement().setId("lblCollectionsRedirectionMsg"); collectionsRedirectionMsg.getElement().setAttribute("alt", i18n.GL1788()); collectionsRedirectionMsg.getElement().setAttribute("title", i18n.GL1788()); emptyContainer.getElement().setId("pnlEmptyContainer"); noCollectionsMsg.getElement().setId("lblNoCollectionsMsg"); leftNav.getElement().setId("pnlLeftNav"); loadingIconPanel.getElement().setId("pnlLoadingImage"); contentScroll.getElement().setId("pnlContentScroll"); } public void setData() { leftNav.clear(); loadingPanel(true); getPresenter().getPartnerWorkspaceFolders(0); } @Override public void loadPartnersPage(String callBack, String placeToken) { } @Override public void setUnitList(final ProfileLibraryListDo profileLibraryListDo) { totalLeftPanelCount = profileLibraryListDo.getCount(); String folderId = AppClientFactory.getPlaceManager().getRequestParameter(FOLDERID); int firstWidgetCount = leftNav.getWidgetCount(); final ArrayList<ProfileLibraryDo> folderList = profileLibraryListDo.getSearchResult(); for (int i = 0; i < folderList.size(); i++) { LeftMenuItemView leftMenuItemView = new LeftMenuItemView(folderList.get(i)); leftNav.add(leftMenuItemView); leftMenuItemView.setWidgetCount(leftNav.getWidgetCount() + 1); leftMenuItemView.setType(folderList.get(i).getType()); if (folderList.get(i).getType().equals("scollection")) { leftMenuItemView.addStyleName(style.collection()); } if (firstWidgetCount == 0 && folderId == null) { firstWidgetCount++; loadingPanel(true); leftMenuItemView.addStyleName(style.open()); leftMenuItemView.addStyleName(style.active()); unitListId = folderList.get(i).getGooruOid(); if (folderList.get(i).getType().equals("scollection")) { setTopicListData(folderList.get(i), unitListId); } else { setTopicListData(folderList.get(i).getCollectionItems(), unitListId); } } } final Iterator<Widget> widgets = leftNav.iterator(); while (widgets.hasNext()) { final Widget widget = widgets.next(); final LeftMenuItemView leftMenuItemView = ((LeftMenuItemView) widget); leftMenuItemView.getUnitMenuItemPanel().addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent event) { if (leftMenuItemView.getWidgetCount() > 10) { Window.scrollTo(0, 0); } loadingPanel(true); final Iterator<Widget> widgetsPanel = leftNav.iterator(); while (widgetsPanel.hasNext()) { final Widget widgetTxt = widgetsPanel.next(); widgetTxt.removeStyleName(style.active()); widgetTxt.removeStyleName(style.open()); } widget.addStyleName(style.open()); widget.addStyleName(style.active()); unitListId = leftMenuItemView.getUnitId(); if (leftMenuItemView.getType().equals("scollection")) { getPresenter().getProfileLibraryCollection(unitListId, false); } else { getPresenter().getPartnerChildFolderItems(unitListId, 1); } } }); } isApiProgress = true; } @Override public void setTopicListData(ProfileLibraryDo profileLibraryDo, String folderId) { contentScroll.clear(); try { contentScroll.add(new ProfileTopicListView(profileLibraryDo, 0, AppClientFactory.getCurrentPlaceToken(), "scollection")); loadingPanel(false); } catch (Exception e) { e.printStackTrace(); loadingPanel(false); } } @Override public void setTopicListData(ArrayList<ProfileLibraryDo> folderListDo, String folderId) { contentScroll.clear(); try { int count = 0; if (folderListDo.size() > 0) { for (int i = 0; i < folderListDo.size(); i++) { count++; if (folderListDo.get(i).getType().equals("scollection")) { contentScroll.add(new ProfileTopicListView(folderListDo.get(i), count, AppClientFactory.getCurrentPlaceToken(), "scollection")); } else { contentScroll.add(new ProfileTopicListView(folderListDo.get(i), count, AppClientFactory.getCurrentPlaceToken())); } } } else { HTMLPanel emptyContainer = new HTMLPanel(""); emptyContainer.setStyleName(style.emptyFolderContainer()); contentScroll.add(emptyContainer); } loadingPanel(false); } catch (Exception e) { e.printStackTrace(); loadingPanel(false); } } @Override public void loadingPanel(boolean isVisible) { loadingIconPanel.setVisible(isVisible); contentScroll.setVisible(!isVisible); } @Override public void clearPanels() { leftNav.clear(); } @Override public void setPresenter(ProfilePageLibraryPresenter profilePageLibraryPresenter) { this.profilePageLibraryPresenter = profilePageLibraryPresenter; } @Override public ProfilePageLibraryPresenter getPresenter() { return profilePageLibraryPresenter; } @UiHandler("myCollectionsBtn") public void clickMyCollectionsBtn(ClickEvent event) { AppClientFactory.getPlaceManager().revealPlace(PlaceTokens.SHELF); } @Override public void setEmptyContainer(boolean isEmpty) { emptyContainer.setVisible(isEmpty); leftNav.setVisible(!isEmpty); contentScroll.setVisible(!isEmpty); if (isEmpty) { setUserNoContentMsg(); } loadingIconPanel.setVisible(false); } private void setUserNoContentMsg() { if (AppClientFactory.getPlaceManager().getRequestParameter("id") .equals(AppClientFactory.getLoggedInUser().getGooruUId())) { noCollectionsMsg.setText(i18n.GL1790()); noCollectionsMsg.getElement().setAttribute("alt", i18n.GL1790()); noCollectionsMsg.getElement().setAttribute("title", i18n.GL1790()); collectionsRedirectionMsg.setVisible(true); myCollectionsBtn.setVisible(true); } else { // noCollectionsMsg.setText("\""+AppClientFactory.getPlaceManager().getRequestParameter("user")+"\" "+i18n.GL1791); noCollectionsMsg.setText(StringUtil.generateMessage(i18n.GL1791(), AppClientFactory.getPlaceManager().getRequestParameter("user"))); noCollectionsMsg.getElement().setAttribute("alt", StringUtil.generateMessage(i18n.GL1791(), AppClientFactory.getPlaceManager().getRequestParameter("user"))); noCollectionsMsg.getElement().setAttribute("title", StringUtil.generateMessage(i18n.GL1791(), AppClientFactory.getPlaceManager().getRequestParameter("user"))); collectionsRedirectionMsg.setVisible(false); myCollectionsBtn.setVisible(false); } } public class LeftPanelScroll implements ScrollHandler { @Override public void onWindowScroll(ScrollEvent event) { if (leftNav.getWidgetCount() < totalLeftPanelCount && isApiProgress) { isApiProgress = false; getPresenter().getPartnerWorkspaceFoldersOnScroll(leftNav.getWidgetCount()); } } } }