Java tutorial
/* * Copyright 2010, 2012 Google Inc. * * 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. * * Adapter by Kune Dev Team */ package cc.kune.gspace.client.i18n; import cc.kune.common.client.notify.NotifyUser; import cc.kune.common.shared.utils.SimpleCallback; import cc.kune.core.client.i18n.I18nUITranslationService; import cc.kune.core.shared.dto.I18nLanguageSimpleDTO; import cc.kune.core.shared.dto.I18nTranslationDTO; import com.google.gwt.cell.client.AbstractCell; import com.google.gwt.cell.client.ValueUpdater; import com.google.gwt.core.client.GWT; import com.google.gwt.core.client.Scheduler; import com.google.gwt.core.client.Scheduler.ScheduledCommand; import com.google.gwt.dom.client.Element; import com.google.gwt.dom.client.NativeEvent; import com.google.gwt.safehtml.shared.SafeHtmlBuilder; import com.google.gwt.safehtml.shared.SafeHtmlUtils; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.cellview.client.CellList; import com.google.gwt.user.cellview.client.HasKeyboardPagingPolicy.KeyboardPagingPolicy; import com.google.gwt.user.cellview.client.HasKeyboardSelectionPolicy.KeyboardSelectionPolicy; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.view.client.SelectionChangeEvent; import com.google.gwt.view.client.SingleSelectionModel; import com.google.inject.Inject; // TODO: Auto-generated Javadoc /** * The Class I18nCellList. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ public class I18nCellList extends Composite { /** * The UiBinder interface used by this example. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ interface Binder extends UiBinder<Widget, I18nCellList> { } /** * The Cell used to render a {@link I18nTranslationDTO}. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ static class TranslationCell extends AbstractCell<I18nTranslationDTO> { /** The dirty style. */ private static String DIRTY_STYLE = "font-style: italic;"; /** The odd style. */ private static String ODD_STYLE = ""; // private static String ODD_STYLE = "background-color: #F3F7FB;"; /** * Instantiates a new translation cell. */ public TranslationCell() { } /* * (non-Javadoc) * * @see com.google.gwt.cell.client.AbstractCell#dependsOnSelection() */ @Override public boolean dependsOnSelection() { return super.dependsOnSelection(); } /* * (non-Javadoc) * * @see * com.google.gwt.cell.client.AbstractCell#onBrowserEvent(com.google.gwt * .cell.client.Cell.Context, com.google.gwt.dom.client.Element, * java.lang.Object, com.google.gwt.dom.client.NativeEvent, * com.google.gwt.cell.client.ValueUpdater) */ @Override public void onBrowserEvent(final com.google.gwt.cell.client.Cell.Context context, final Element parent, final I18nTranslationDTO value, final NativeEvent event, final ValueUpdater<I18nTranslationDTO> valueUpdater) { super.onBrowserEvent(context, parent, value, event, valueUpdater); } /* * (non-Javadoc) * * @see * com.google.gwt.cell.client.AbstractCell#onEnterKeyDown(com.google.gwt * .cell.client.Cell.Context, com.google.gwt.dom.client.Element, * java.lang.Object, com.google.gwt.dom.client.NativeEvent, * com.google.gwt.cell.client.ValueUpdater) */ @Override protected void onEnterKeyDown(final com.google.gwt.cell.client.Cell.Context context, final Element parent, final I18nTranslationDTO value, final NativeEvent event, final ValueUpdater<I18nTranslationDTO> valueUpdater) { } /* * (non-Javadoc) * * @see * com.google.gwt.cell.client.AbstractCell#render(com.google.gwt.cell.client * .Cell.Context, java.lang.Object, * com.google.gwt.safehtml.shared.SafeHtmlBuilder) */ @Override public void render(final Context context, final I18nTranslationDTO value, final SafeHtmlBuilder sb) { // Value can be null, so do a null check.. if (value == null) { return; } final int index = context.getIndex(); final boolean odd = index % 2 == 0; sb.appendHtmlConstant("<div style='display: table-row; border-bottom: 1px dashed #CCC; " + (odd ? ODD_STYLE : "") + "'>"); sb.appendHtmlConstant("<div style='display: table-cell; width: 100%; padding: 1px 5px;" + (value.isDirty() ? DIRTY_STYLE : "") + "'>"); final String trKey = value.getTrKey(); sb.appendEscaped(trKey == null ? value.getParentTrKey() : trKey); sb.appendHtmlConstant("</div></div>"); } } /** * The CellList. */ private final CellList<I18nTranslationDTO> cellList; /** The data. */ private final I18nTranslationDataProvider data; /** * The pager used to change the range of data. */ @UiField ShowMorePagerPanel pagerPanel; /** * The pager used to display the current range. */ @UiField RangeLabelPager rangeLabelPager; /** The form used to update translations. */ @UiField I18nTranslatorForm translatorForm; /** * Instantiates a new i18n cell list. * * @param data * the data * @param i18n * the i18n * @param saver * the saver */ @Inject public I18nCellList(final I18nTranslationDataProvider data, final I18nUITranslationService i18n, final I18nTranslatorSaver saver) { this.data = data; final TranslationCell cell = new TranslationCell(); // Set a key provider that provides a unique key for each contact. If key is // used to identify translations when fields change. cellList = new CellList<I18nTranslationDTO>(cell, I18nTranslationDTO.KEY_PROVIDER); cellList.setPageSize(30); cellList.setEmptyListMessage(SafeHtmlUtils .fromTrustedString("<span style='padding: 10px; font-style: italic;'>Empty list</span>")); cellList.setKeyboardPagingPolicy(KeyboardPagingPolicy.INCREASE_RANGE); cellList.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.BOUND_TO_SELECTION); final SingleSelectionModel<I18nTranslationDTO> selectionModel = new SingleSelectionModel<I18nTranslationDTO>( I18nTranslationDTO.KEY_PROVIDER); // Add a selection model so we can select cells. cellList.setSelectionModel(selectionModel); // Create the UiBinder. final Binder uiBinder = GWT.create(Binder.class); initWidget(uiBinder.createAndBindUi(this)); translatorForm.init(data, i18n, saver); cellList.setValueUpdater(new ValueUpdater<I18nTranslationDTO>() { @Override public void update(final I18nTranslationDTO value) { // save(value); } }); selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() { @Override public void onSelectionChange(final SelectionChangeEvent event) { translatorForm.setInfo(selectionModel.getSelectedObject()); Scheduler.get().scheduleEntry(new ScheduledCommand() { @Override public void execute() { translatorForm.focusToTranslate(); } }); } }); // cellList.sinkEvents(com.google.gwt.user.client.Event.KEYEVENTS); data.addDataDisplay(cellList); data.setSelectionMode(selectionModel); data.setLoadCallback(new SimpleCallback() { @Override public void onCallback() { translatorForm.focusToTranslate(); NotifyUser.hideProgress(); } }); // Set the cellList as the display of the pagers. // pagerPanel is a scrollable pager that extends the range when the // user scrolls to the bottom. rangeLabelPager is a pager that displays the // current range, but does not have any controls to change the range. pagerPanel.setDisplay(cellList); // pagerPanel.setStyleName("k-i18n-trans-list"); rangeLabelPager.setDisplay(cellList); } /** * Sets the language. * * @param fromLanguage * the from language * @param toLanguage * the to language * @param toTranslate * the to translate */ public void setLanguage(final I18nLanguageSimpleDTO fromLanguage, final I18nLanguageSimpleDTO toLanguage, final boolean toTranslate) { data.setLanguage(fromLanguage, toLanguage, toTranslate); translatorForm.setToLanguage(toLanguage); } }