gitorious.org Git - online-glom:gwt-glom.git/blob - src/main/java/org/glom/web/client/ui/DocumentLoginViewImpl.java

1 /*

3 *

4 * This file is part of GWT-Glom.

5 *

6 * GWT-Glom is free software: you can redistribute it and/or modify it

7 * under the terms of the GNU Lesser General Public License as published by the

8 * Free Software Foundation, either version 3 of the License, or (at your

9 * option) any later version.

10 *

11 * GWT-Glom is distributed in the hope that it will be useful, but WITHOUT

12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License

14 * for more details.

15 *

16 * You should have received a copy of the GNU Lesser General Public License

17 * along with GWT-Glom. If not, see <http://www.gnu.org/licenses/>.

18 */

19

20 package org.glom.web.client.ui;

21

22 import com.google.gwt.core.client.GWT;

23 import com.google.gwt.event.dom.client.ClickHandler;

24 import com.google.gwt.event.shared.HandlerRegistration;

25 import com.google.gwt.uibinder.client.UiBinder;

26 import com.google.gwt.uibinder.client.UiField;

27 import com.google.gwt.user.client.Window;

28 import com.google.gwt.user.client.ui.Button;

29 import com.google.gwt.user.client.ui.Composite;

30 import com.google.gwt.user.client.ui.FlexTable;

31 import com.google.gwt.user.client.ui.HTMLPanel;

32 import com.google.gwt.user.client.ui.HasHorizontalAlignment;

33 import com.google.gwt.user.client.ui.Label;

34 import com.google.gwt.user.client.ui.PasswordTextBox;

35 import com.google.gwt.user.client.ui.TextBox;

36 import com.google.gwt.user.client.ui.VerticalPanel;

37 import com.google.gwt.user.client.ui.Widget;

38 import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter;

39

40 public class DocumentLoginViewImpl extends Composite implements DocumentLoginView {

41

42 // OnlineGlomConstants.java is generated in the target/ directory,

43 // from OnlineGlomConstants.properties

44 // by the gwt-maven-plugin's i18n (mvn:i18n) goal.

45 private final OnlineGlomConstants constants = GWT.create(OnlineGlomConstants.class);

46

47 interface DocumentLoginViewImplUiBinder extends UiBinder<Widget, DocumentLoginViewImpl> {

48 }

49

50 private static DocumentLoginViewImplUiBinder uiBinder = GWT.create(DocumentLoginViewImplUiBinder.class);

51 @UiField

52 VerticalPanel documentLoginFields;

53 @UiField

54 HTMLPanel documentLoginPanel;

55

56 //final private FlowPanel mainPanel = new FlowPanel();

57 private final TextBox usernameTextBox = new TextBox();

58 private final PasswordTextBox passwordTextBox = new PasswordTextBox();

59 private final Label errorMessage = new Label(constants.loginWrong());

60 private final Button loginButton = new Button(constants.login());

61 private final Button cancelButton = new Button(constants.cancel());

62 //TODO: ForgotPassword button.

63 FlexTable flexTable = new FlexTable();

64

65 //private Presenter presenter;

66

67 private HandlerRegistration authLoginButtonHandlerRegistration;

68 private HandlerRegistration authCancelButtonHandlerRegistration;

69

70 public DocumentLoginViewImpl() {

71 initWidget(uiBinder.createAndBindUi(this));

72 documentLoginPanel.getElement().setId("documentLoginPanel");

73 documentLoginFields.addStyleName("documentLoginFields");

74

75 documentLoginFields.add(flexTable);

76

77 //TODO: Use UIBinder to lay this out properly:

78 flexTable.setCellSpacing(10);

79 final FlexCellFormatter cellFormatter = flexTable.getFlexCellFormatter();

80 flexTable.setHTML(0, 0, "<b>" + constants.loginEnter() + "</b>");

81 cellFormatter.setColSpan(0, 0, 2);

82 cellFormatter.setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);

83 flexTable.setHTML(1, 0, constants.loginUsername());

84 flexTable.setWidget(1, 1, usernameTextBox);

85 cellFormatter.setHorizontalAlignment(1, 1, HasHorizontalAlignment.ALIGN_RIGHT);

86 flexTable.setHTML(2, 0, constants.loginPassword());

87 flexTable.setWidget(2, 1, passwordTextBox);

88 cellFormatter.setHorizontalAlignment(2, 1, HasHorizontalAlignment.ALIGN_RIGHT);

89 flexTable.setWidget(3, 0, cancelButton);

90 cellFormatter.setHorizontalAlignment(3, 0, HasHorizontalAlignment.ALIGN_RIGHT);

91 flexTable.setWidget(3, 1, loginButton);

92 cellFormatter.setHorizontalAlignment(3, 1, HasHorizontalAlignment.ALIGN_RIGHT);

93

94 final String protocol = Window.Location.getProtocol();

95 if((protocol != null) && !protocol.equals("https:")) {

96 //Warn that login cannot work unless the login servlet is served via HTTPS.

97 //And actually, the entire site must be served via HTTPS,

98 //or we would violate the Same Origin Policy by mixing protocols,

99 //so this very page should have been delivered by HTTPS.

100 GWT.log("The login page arrived via http, rather than https. Refusing to log in.");

101

102 errorMessage.setText(constants.loginNeedsHttps());

103 setError();

104 loginButton.setEnabled(false);

105 }

106 }

107

108 @Override

109 public void setPresenter(final Presenter presenter) {

110 //this.presenter = presenter;

111 }

112

113 @Override

114 public void setClickLoginHandler(final ClickHandler clickHandler) {

115 authLoginButtonHandlerRegistration = loginButton.addClickHandler(clickHandler);

116 }

117

118 @Override

119 public void setClickCancelHandler(final ClickHandler clickHandler) {

120 authCancelButtonHandlerRegistration = cancelButton.addClickHandler(clickHandler);

121 }

122

123 @Override

124 public String getUsername() {

125 return usernameTextBox.getValue();

126 }

127

128 @Override

129 public String getPassword() {

130 return passwordTextBox.getValue();

131

132 }

133

134 @Override

135 public void clear() {

136 if (authLoginButtonHandlerRegistration != null) {

137 authLoginButtonHandlerRegistration.removeHandler();

138 authLoginButtonHandlerRegistration = null;

139 }

140

141 if (authCancelButtonHandlerRegistration != null) {

142 authCancelButtonHandlerRegistration.removeHandler();

143 authCancelButtonHandlerRegistration = null;

144 }

145

146 usernameTextBox.setText("");

147 passwordTextBox.setText("");

148 setTextFieldsEnabled(true);

149 clearError();

150 }

151

152 @Override

153 public void setTextFieldsEnabled(final boolean enabled) {

154 usernameTextBox.setEnabled(enabled);

155 passwordTextBox.setEnabled(enabled);

156 }

157

158 @Override

159 public void setError() {

160 flexTable.setWidget(4, 0, errorMessage);

161 final FlexCellFormatter cellFormatter = flexTable.getFlexCellFormatter();

162 cellFormatter.setColSpan(4, 0, 2);

163 cellFormatter.setHorizontalAlignment(4, 0, HasHorizontalAlignment.ALIGN_LEFT);

164 errorMessage.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);

165 }

166

167 @Override

168 public void clearError() {

169 if (flexTable.getRowCount() == 5) {

170 flexTable.removeRow(4);

171 }

172 }

173

174 }