Java tutorial
// Copyright (C) 2008 The Android Open Source Project // // 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.google.gerrit.client.account; import com.google.gerrit.client.Gerrit; import com.google.gerrit.client.rpc.GerritCallback; import com.google.gerrit.client.rpc.ScreenLoadCallback; import com.google.gerrit.client.ui.HintTextBox; import com.google.gerrit.client.ui.ProjectListPopup; import com.google.gerrit.client.ui.ProjectNameSuggestOracle; import com.google.gerrit.common.PageLinks; import com.google.gerrit.common.data.AccountProjectWatchInfo; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.dom.client.KeyCodes; import com.google.gwt.event.dom.client.KeyPressEvent; import com.google.gwt.event.dom.client.KeyPressHandler; import com.google.gwt.event.logical.shared.SelectionEvent; import com.google.gwt.event.logical.shared.SelectionHandler; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.HTMLTable.CellFormatter; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.SuggestBox; import com.google.gwt.user.client.ui.SuggestBox.DefaultSuggestionDisplay; import com.google.gwt.user.client.ui.SuggestOracle.Suggestion; import java.util.List; public class MyWatchedProjectsScreen extends SettingsScreen { private Button addNew; private HintTextBox nameBox; private SuggestBox nameTxt; private HintTextBox filterTxt; private MyWatchesTable watchesTab; private Button browse; private Button delSel; private boolean submitOnSelection; private Grid grid; private ProjectListPopup projectsPopup; @Override protected void onInitUI() { super.onInitUI(); createWidgets(); /* top table */ grid = new Grid(2, 2); grid.setStyleName(Gerrit.RESOURCES.css().infoBlock()); grid.setText(0, 0, Util.C.watchedProjectName()); final HorizontalPanel hp = new HorizontalPanel(); hp.add(nameTxt); hp.add(browse); grid.setWidget(0, 1, hp); grid.setText(1, 0, Util.C.watchedProjectFilter()); grid.setWidget(1, 1, filterTxt); final CellFormatter fmt = grid.getCellFormatter(); fmt.addStyleName(0, 0, Gerrit.RESOURCES.css().topmost()); fmt.addStyleName(0, 1, Gerrit.RESOURCES.css().topmost()); fmt.addStyleName(0, 0, Gerrit.RESOURCES.css().header()); fmt.addStyleName(1, 0, Gerrit.RESOURCES.css().header()); fmt.addStyleName(1, 0, Gerrit.RESOURCES.css().bottomheader()); final FlowPanel fp = new FlowPanel(); fp.setStyleName(Gerrit.RESOURCES.css().addWatchPanel()); fp.add(grid); fp.add(addNew); add(fp); /* bottom table */ add(watchesTab); add(delSel); /* popup */ projectsPopup = new ProjectListPopup() { @Override protected void onMovePointerTo(String projectName) { // prevent user input from being overwritten by simply poping up if (!projectsPopup.isPoppingUp() || "".equals(nameBox.getText())) { nameBox.setText(projectName); } } @Override protected void openRow(String projectName) { nameBox.setText(projectName); doAddNew(); } }; projectsPopup.initPopup(Util.C.projects(), PageLinks.SETTINGS_PROJECTS); } protected void createWidgets() { nameBox = new HintTextBox(); nameTxt = new SuggestBox(new ProjectNameSuggestOracle(), nameBox); nameBox.setVisibleLength(50); nameBox.setHintText(Util.C.defaultProjectName()); nameBox.addKeyPressHandler(new KeyPressHandler() { @Override public void onKeyPress(KeyPressEvent event) { submitOnSelection = false; if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER) { if (((DefaultSuggestionDisplay) nameTxt.getSuggestionDisplay()).isSuggestionListShowing()) { submitOnSelection = true; } else { doAddNew(); } } } }); nameTxt.addSelectionHandler(new SelectionHandler<Suggestion>() { @Override public void onSelection(SelectionEvent<Suggestion> event) { if (submitOnSelection) { submitOnSelection = false; doAddNew(); } } }); filterTxt = new HintTextBox(); filterTxt.setVisibleLength(50); filterTxt.setHintText(Util.C.defaultFilter()); filterTxt.addKeyPressHandler(new KeyPressHandler() { @Override public void onKeyPress(KeyPressEvent event) { if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER) { doAddNew(); } } }); addNew = new Button(Util.C.buttonWatchProject()); addNew.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { doAddNew(); } }); browse = new Button(Util.C.buttonBrowseProjects()); browse.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { int top = grid.getAbsoluteTop() - 50; // under page header // Try to place it to the right of everything else, but not // right justified int left = 5 + Math.max(grid.getAbsoluteLeft() + grid.getOffsetWidth(), watchesTab.getAbsoluteLeft() + watchesTab.getOffsetWidth()); projectsPopup.setPreferredCoordinates(top, left); projectsPopup.displayPopup(); } }); watchesTab = new MyWatchesTable(); delSel = new Button(Util.C.buttonDeleteSshKey()); delSel.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { watchesTab.deleteChecked(); } }); } @Override protected void onLoad() { super.onLoad(); populateWatches(); } @Override protected void onUnload() { super.onUnload(); projectsPopup.closePopup(); } protected void doAddNew() { final String projectName = nameTxt.getText().trim(); if ("".equals(projectName)) { return; } String filter = filterTxt.getText(); if (filter == null || filter.isEmpty() || filter.equals(Util.C.defaultFilter())) { filter = null; } addNew.setEnabled(false); nameBox.setEnabled(false); filterTxt.setEnabled(false); Util.ACCOUNT_SVC.addProjectWatch(projectName, filter, new GerritCallback<AccountProjectWatchInfo>() { public void onSuccess(final AccountProjectWatchInfo result) { addNew.setEnabled(true); nameBox.setEnabled(true); filterTxt.setEnabled(true); nameTxt.setText(""); watchesTab.insertWatch(result); } @Override public void onFailure(final Throwable caught) { addNew.setEnabled(true); nameBox.setEnabled(true); filterTxt.setEnabled(true); super.onFailure(caught); } }); } protected void populateWatches() { Util.ACCOUNT_SVC.myProjectWatch(new ScreenLoadCallback<List<AccountProjectWatchInfo>>(this) { @Override public void preDisplay(final List<AccountProjectWatchInfo> result) { watchesTab.display(result); } }); } }