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.admin; import com.google.gerrit.client.Dispatcher; import com.google.gerrit.client.Gerrit; import com.google.gerrit.client.VoidResult; import com.google.gerrit.client.account.AccountInfo; import com.google.gerrit.client.groups.GroupApi; import com.google.gerrit.client.groups.GroupInfo; import com.google.gerrit.client.rpc.GerritCallback; import com.google.gerrit.client.rpc.Natives; import com.google.gerrit.client.ui.AccountGroupSuggestOracle; import com.google.gerrit.client.ui.AccountLinkPanel; import com.google.gerrit.client.ui.AddMemberBox; import com.google.gerrit.client.ui.FancyFlexTable; import com.google.gerrit.client.ui.Hyperlink; import com.google.gerrit.client.ui.SmallHeading; import com.google.gerrit.reviewdb.client.AccountGroup; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.ui.Anchor; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.CheckBox; import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter; import com.google.gwt.user.client.ui.FlowPanel; import com.google.gwt.user.client.ui.Panel; import java.util.Comparator; import java.util.HashSet; import java.util.List; import javax.annotation.Nullable; public class AccountGroupMembersScreen extends AccountGroupScreen { private MemberTable members; private IncludeTable includes; private Panel memberPanel; private AddMemberBox addMemberBox; private Button delMember; private Panel includePanel; private AddMemberBox addIncludeBox; private Button delInclude; private FlowPanel noMembersInfo; public AccountGroupMembersScreen(final GroupInfo toShow, final String token) { super(toShow, token); } @Override protected void onInitUI() { super.onInitUI(); initMemberList(); initIncludeList(); initNoMembersInfo(); } private void enableForm(final boolean canModify) { addMemberBox.setEnabled(canModify); members.setEnabled(canModify); addIncludeBox.setEnabled(canModify); includes.setEnabled(canModify); } private void initMemberList() { addMemberBox = new AddMemberBox(); addMemberBox.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { doAddNewMember(); } }); members = new MemberTable(); members.addStyleName(Gerrit.RESOURCES.css().groupMembersTable()); delMember = new Button(Util.C.buttonDeleteGroupMembers()); delMember.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { members.deleteChecked(); } }); memberPanel = new FlowPanel(); memberPanel.add(new SmallHeading(Util.C.headingMembers())); memberPanel.add(addMemberBox); memberPanel.add(members); memberPanel.add(delMember); add(memberPanel); } private void initIncludeList() { addIncludeBox = new AddMemberBox(Util.C.buttonAddIncludedGroup(), Util.C.defaultAccountGroupName(), new AccountGroupSuggestOracle()); addIncludeBox.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { doAddNewInclude(); } }); includes = new IncludeTable(); includes.addStyleName(Gerrit.RESOURCES.css().groupIncludesTable()); delInclude = new Button(Util.C.buttonDeleteIncludedGroup()); delInclude.addClickHandler(new ClickHandler() { @Override public void onClick(final ClickEvent event) { includes.deleteChecked(); } }); includePanel = new FlowPanel(); includePanel.add(new SmallHeading(Util.C.headingIncludedGroups())); includePanel.add(addIncludeBox); includePanel.add(includes); includePanel.add(delInclude); add(includePanel); } private void initNoMembersInfo() { noMembersInfo = new FlowPanel(); noMembersInfo.setVisible(false); noMembersInfo.add(new SmallHeading(Util.C.noMembersInfo())); add(noMembersInfo); } @Override protected void display(final GroupInfo group, final boolean canModify) { if (AccountGroup.isInternalGroup(group.getGroupUUID()) && !AccountGroup.isSystemGroup(group.getGroupUUID())) { members.display(Natives.asList(group.members())); includes.display(Natives.asList(group.includes())); } else { memberPanel.setVisible(false); includePanel.setVisible(false); noMembersInfo.setVisible(true); } enableForm(canModify); delMember.setVisible(canModify); delInclude.setVisible(canModify); } void doAddNewMember() { final String nameEmail = addMemberBox.getText(); if (nameEmail.length() == 0) { return; } addMemberBox.setEnabled(false); GroupApi.addMember(getGroupUUID(), nameEmail, new GerritCallback<AccountInfo>() { public void onSuccess(final AccountInfo memberInfo) { addMemberBox.setEnabled(true); addMemberBox.setText(""); members.insert(memberInfo); } @Override public void onFailure(final Throwable caught) { addMemberBox.setEnabled(true); super.onFailure(caught); } }); } void doAddNewInclude() { final String groupName = addIncludeBox.getText(); if (groupName.length() == 0) { return; } addIncludeBox.setEnabled(false); GroupApi.addIncludedGroup(getGroupUUID(), groupName, new GerritCallback<GroupInfo>() { public void onSuccess(final GroupInfo result) { addIncludeBox.setEnabled(true); addIncludeBox.setText(""); includes.insert(result); } @Override public void onFailure(final Throwable caught) { addIncludeBox.setEnabled(true); super.onFailure(caught); } }); } private class MemberTable extends FancyFlexTable<AccountInfo> { private boolean enabled = true; MemberTable() { table.setText(0, 2, Util.C.columnMember()); table.setText(0, 3, Util.C.columnEmailAddress()); final FlexCellFormatter fmt = table.getFlexCellFormatter(); fmt.addStyleName(0, 1, Gerrit.RESOURCES.css().iconHeader()); fmt.addStyleName(0, 2, Gerrit.RESOURCES.css().dataHeader()); fmt.addStyleName(0, 3, Gerrit.RESOURCES.css().dataHeader()); } void setEnabled(final boolean enabled) { this.enabled = enabled; for (int row = 1; row < table.getRowCount(); row++) { final AccountInfo i = getRowItem(row); if (i != null) { ((CheckBox) table.getWidget(row, 1)).setEnabled(enabled); } } } void deleteChecked() { final HashSet<Integer> ids = new HashSet<Integer>(); for (int row = 1; row < table.getRowCount(); row++) { final AccountInfo i = getRowItem(row); if (i != null && ((CheckBox) table.getWidget(row, 1)).getValue()) { ids.add(i._account_id()); } } if (!ids.isEmpty()) { GroupApi.removeMembers(getGroupUUID(), ids, new GerritCallback<VoidResult>() { public void onSuccess(final VoidResult result) { for (int row = 1; row < table.getRowCount();) { final AccountInfo i = getRowItem(row); if (i != null && ids.contains(i._account_id())) { table.removeRow(row); } else { row++; } } } }); } } void display(final List<AccountInfo> result) { while (1 < table.getRowCount()) table.removeRow(table.getRowCount() - 1); for (final AccountInfo i : result) { final int row = table.getRowCount(); table.insertRow(row); applyDataRowStyle(row); populate(row, i); } } void insert(AccountInfo info) { Comparator<AccountInfo> c = new Comparator<AccountInfo>() { @Override public int compare(AccountInfo a, AccountInfo b) { int cmp = nullToEmpty(a.name()).compareTo(nullToEmpty(b.name())); if (cmp != 0) { return cmp; } cmp = nullToEmpty(a.email()).compareTo(nullToEmpty(b.email())); if (cmp != 0) { return cmp; } return a._account_id() - b._account_id(); } public String nullToEmpty(String str) { return str == null ? "" : str; } }; int insertPosition = table.getRowCount(); int left = 1; int right = table.getRowCount() - 1; while (left <= right) { int middle = (left + right) >>> 1; // (left+right)/2 AccountInfo i = getRowItem(middle); int cmp = c.compare(i, info); if (cmp < 0) { left = middle + 1; } else if (cmp > 0) { right = middle - 1; } else { // group is already contained in the table return; } } insertPosition = left; table.insertRow(insertPosition); applyDataRowStyle(insertPosition); populate(insertPosition, info); } void populate(final int row, final AccountInfo i) { CheckBox checkBox = new CheckBox(); table.setWidget(row, 1, checkBox); checkBox.setEnabled(enabled); table.setWidget(row, 2, new AccountLinkPanel(i)); table.setText(row, 3, i.email()); final FlexCellFormatter fmt = table.getFlexCellFormatter(); fmt.addStyleName(row, 1, Gerrit.RESOURCES.css().iconCell()); fmt.addStyleName(row, 2, Gerrit.RESOURCES.css().dataCell()); fmt.addStyleName(row, 3, Gerrit.RESOURCES.css().dataCell()); setRowItem(row, i); } } private class IncludeTable extends FancyFlexTable<GroupInfo> { private boolean enabled = true; IncludeTable() { table.setText(0, 2, Util.C.columnGroupName()); table.setText(0, 3, Util.C.columnGroupDescription()); final FlexCellFormatter fmt = table.getFlexCellFormatter(); fmt.addStyleName(0, 1, Gerrit.RESOURCES.css().iconHeader()); fmt.addStyleName(0, 2, Gerrit.RESOURCES.css().dataHeader()); fmt.addStyleName(0, 3, Gerrit.RESOURCES.css().dataHeader()); } void setEnabled(final boolean enabled) { this.enabled = enabled; for (int row = 1; row < table.getRowCount(); row++) { final GroupInfo i = getRowItem(row); if (i != null) { ((CheckBox) table.getWidget(row, 1)).setEnabled(enabled); } } } void deleteChecked() { final HashSet<AccountGroup.UUID> ids = new HashSet<AccountGroup.UUID>(); for (int row = 1; row < table.getRowCount(); row++) { final GroupInfo i = getRowItem(row); if (i != null && ((CheckBox) table.getWidget(row, 1)).getValue()) { ids.add(i.getGroupUUID()); } } if (!ids.isEmpty()) { GroupApi.removeIncludedGroups(getGroupUUID(), ids, new GerritCallback<VoidResult>() { public void onSuccess(final VoidResult result) { for (int row = 1; row < table.getRowCount();) { final GroupInfo i = getRowItem(row); if (i != null && ids.contains(i.getGroupUUID())) { table.removeRow(row); } else { row++; } } } }); } } void display(List<GroupInfo> list) { while (1 < table.getRowCount()) table.removeRow(table.getRowCount() - 1); for (final GroupInfo i : list) { final int row = table.getRowCount(); table.insertRow(row); applyDataRowStyle(row); populate(row, i); } } void insert(GroupInfo info) { Comparator<GroupInfo> c = new Comparator<GroupInfo>() { @Override public int compare(GroupInfo a, GroupInfo b) { int cmp = nullToEmpty(a.name()).compareTo(nullToEmpty(b.name())); if (cmp != 0) { return cmp; } return a.getGroupUUID().compareTo(b.getGroupUUID()); } private String nullToEmpty(@Nullable String str) { return (str == null) ? "" : str; } }; int insertPosition = table.getRowCount(); int left = 1; int right = table.getRowCount() - 1; while (left <= right) { int middle = (left + right) >>> 1; // (left+right)/2 GroupInfo i = getRowItem(middle); int cmp = c.compare(i, info); if (cmp < 0) { left = middle + 1; } else if (cmp > 0) { right = middle - 1; } else { // group is already contained in the table return; } } insertPosition = left; table.insertRow(insertPosition); applyDataRowStyle(insertPosition); populate(insertPosition, info); } void populate(final int row, final GroupInfo i) { final FlexCellFormatter fmt = table.getFlexCellFormatter(); AccountGroup.UUID uuid = i.getGroupUUID(); CheckBox checkBox = new CheckBox(); table.setWidget(row, 1, checkBox); checkBox.setEnabled(enabled); if (AccountGroup.isInternalGroup(uuid)) { table.setWidget(row, 2, new Hyperlink(i.name(), Dispatcher.toGroup(uuid))); fmt.getElement(row, 2).setTitle(null); table.setText(row, 3, i.description()); } else if (i.url() != null) { Anchor a = new Anchor(); a.setText(i.name()); a.setHref(i.url()); a.setTitle("UUID " + uuid.get()); table.setWidget(row, 2, a); fmt.getElement(row, 2).setTitle(null); } else { table.setText(row, 2, i.name()); fmt.getElement(row, 2).setTitle("UUID " + uuid.get()); } fmt.addStyleName(row, 1, Gerrit.RESOURCES.css().iconCell()); fmt.addStyleName(row, 2, Gerrit.RESOURCES.css().dataCell()); fmt.addStyleName(row, 3, Gerrit.RESOURCES.css().dataCell()); setRowItem(row, i); } } }