1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui;
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3 |
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4 | import java.awt.Color;
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5 | import java.awt.Component;
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6 | import java.util.Objects;
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7 |
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8 | import javax.swing.Icon;
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9 | import javax.swing.JEditorPane;
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10 | import javax.swing.JOptionPane;
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11 | import javax.swing.UIManager;
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12 | import javax.swing.text.JTextComponent;
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13 |
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14 | import org.openstreetmap.josm.gui.widgets.JMultilineLabel;
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15 | import org.openstreetmap.josm.spi.preferences.Config;
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16 |
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17 | /**
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18 | * A Notification Message similar to a popup window, but without disrupting the
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19 | * user's workflow.
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20 | *
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21 | * Non-modal info panel that vanishes after a certain time.
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22 | *
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23 | * This class only holds the data for a notification, {@link NotificationManager}
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24 | * is responsible for building the message panel and displaying it on screen.
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25 | *
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26 | * example:
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27 | * <pre>
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28 | * Notification note = new Notification("Hi there!");
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29 | * note.setIcon(JOptionPane.INFORMATION_MESSAGE); // optional
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30 | * note.setDuration(Notification.TIME_SHORT); // optional
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31 | * note.show();
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32 | * </pre>
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33 | */
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34 | public class Notification {
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35 |
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36 | /**
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37 | * Default width of a notification
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38 | */
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39 | public static final int DEFAULT_CONTENT_WIDTH = 350;
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40 |
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41 | // some standard duration values (in milliseconds)
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42 |
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43 | /**
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44 | * Very short and very easy to grasp message (3 s).
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45 | * E.g. "Please select at least one node".
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46 | */
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47 | public static final int TIME_SHORT = Config.getPref().getInt("notification-time-short-ms", 3000);
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48 |
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49 | /**
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50 | * Short message of one or two lines (5 s).
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51 | */
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52 | public static final int TIME_DEFAULT = Config.getPref().getInt("notification-time-default-ms", 5000);
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53 |
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54 | /**
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55 | * Somewhat longer message (10 s).
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56 | */
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57 | public static final int TIME_LONG = Config.getPref().getInt("notification-time-long-ms", 10_000);
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58 |
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59 | /**
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60 | * Long text.
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61 | * (Make sure is still sensible to show as a notification)
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62 | */
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63 | public static final int TIME_VERY_LONG = Config.getPref().getInt("notification-time-very_long-ms", 20_000);
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64 |
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65 | private Component content;
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66 | private int duration = Notification.TIME_DEFAULT;
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67 | private Icon icon;
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68 | private String helpTopic;
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69 |
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70 | /**
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71 | * Constructs a new {@code Notification} without content.
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72 | */
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73 | public Notification() {
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74 | // nothing to do.
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75 | }
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76 |
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77 | /**
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78 | * Constructs a new {@code Notification} with the given textual content.
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79 | * @param msg The text to display
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80 | */
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81 | public Notification(String msg) {
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82 | this();
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83 | setContent(msg);
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84 | }
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85 |
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86 | /**
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87 | * Set the content of the message.
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88 | *
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89 | * @param content any Component to be shown
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90 | *
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91 | * @return the current Object, for convenience
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92 | * @see #setContent(java.lang.String)
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93 | */
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94 | public Notification setContent(Component content) {
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95 | this.content = content;
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96 | return this;
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97 | }
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98 |
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99 | /**
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100 | * Set the notification text. (Convenience method)
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101 | *
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102 | * @param msg the message String. Will be wrapped in <html>, so
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103 | * you can use <br> and other markup directly.
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104 | *
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105 | * @return the current Object, for convenience
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106 | * @see #Notification(java.lang.String)
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107 | */
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108 | public Notification setContent(String msg) {
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109 | JMultilineLabel lbl = new JMultilineLabel(msg);
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110 | lbl.setMaxWidth(DEFAULT_CONTENT_WIDTH);
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111 | lbl.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
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112 | lbl.setForeground(Color.BLACK);
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113 | content = lbl;
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114 | return this;
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115 | }
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116 |
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117 | /**
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118 | * Set the time after which the message is hidden.
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119 | *
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120 | * @param duration the time (in milliseconds)
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121 | * Preset values {@link #TIME_SHORT}, {@link #TIME_DEFAULT}, {@link #TIME_LONG}
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122 | * and {@link #TIME_VERY_LONG} can be used.
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123 | * @return the current Object, for convenience
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124 | */
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125 | public Notification setDuration(int duration) {
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126 | this.duration = duration;
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127 | return this;
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128 | }
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129 |
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130 | /**
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131 | * Set an icon to display on the left part of the message window.
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132 | *
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133 | * @param icon the icon (null means no icon is displayed)
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134 | * @return the current Object, for convenience
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135 | */
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136 | public Notification setIcon(Icon icon) {
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137 | this.icon = icon;
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138 | return this;
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139 | }
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140 |
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141 | /**
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142 | * Set an icon to display on the left part of the message window by
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143 | * choosing from the default JOptionPane icons.
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144 | *
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145 | * @param messageType one of the following: JOptionPane.ERROR_MESSAGE,
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146 | * JOptionPane.INFORMATION_MESSAGE, JOptionPane.WARNING_MESSAGE,
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147 | * JOptionPane.QUESTION_MESSAGE, JOptionPane.PLAIN_MESSAGE
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148 | * @return the current Object, for convenience
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149 | */
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150 | public Notification setIcon(int messageType) {
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151 | switch (messageType) {
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152 | case JOptionPane.ERROR_MESSAGE:
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153 | return setIcon(UIManager.getIcon("OptionPane.errorIcon"));
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154 | case JOptionPane.INFORMATION_MESSAGE:
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155 | return setIcon(UIManager.getIcon("OptionPane.informationIcon"));
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156 | case JOptionPane.WARNING_MESSAGE:
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157 | return setIcon(UIManager.getIcon("OptionPane.warningIcon"));
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158 | case JOptionPane.QUESTION_MESSAGE:
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159 | return setIcon(UIManager.getIcon("OptionPane.questionIcon"));
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160 | case JOptionPane.PLAIN_MESSAGE:
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161 | return setIcon(null);
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162 | default:
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163 | throw new IllegalArgumentException("Unknown message type!");
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164 | }
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165 | }
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166 |
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167 | /**
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168 | * Display a help button at the bottom of the notification window.
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169 | * @param helpTopic the help topic
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170 | * @return the current Object, for convenience
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171 | */
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172 | public Notification setHelpTopic(String helpTopic) {
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173 | this.helpTopic = helpTopic;
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174 | return this;
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175 | }
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176 |
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177 | /**
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178 | * Gets the content component to use.
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179 | * @return The content
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180 | */
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181 | public Component getContent() {
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182 | return content;
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183 | }
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184 |
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185 | /**
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186 | * Gets the time the notification should be displayed
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187 | * @return The time to display the notification
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188 | */
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189 | public int getDuration() {
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190 | return duration;
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191 | }
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192 |
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193 | /**
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194 | * Gets the icon that should be displayed next to the notification
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195 | * @return The icon to display
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196 | */
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197 | public Icon getIcon() {
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198 | return icon;
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199 | }
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200 |
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201 | /**
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202 | * Gets the help topic for this notification
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203 | * @return The help topic
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204 | */
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205 | public String getHelpTopic() {
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206 | return helpTopic;
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207 | }
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208 |
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209 | /**
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210 | * Display the notification.
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211 | */
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212 | public void show() {
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213 | NotificationManager.getInstance().showNotification(this);
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214 | }
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215 |
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216 | /**
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217 | * Display the notification by replacing the given queued/displaying notification
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218 | * @param oldNotification the notification to replace
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219 | * @since 17628
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220 | */
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221 | public void replaceExisting(Notification oldNotification) {
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222 | NotificationManager.getInstance().replaceExistingNotification(oldNotification, this);
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223 | }
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224 |
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225 | private Object getContentTextOrComponent() {
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226 | return content instanceof JTextComponent ? ((JTextComponent) content).getText() : content;
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227 | }
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228 |
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229 | @Override
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230 | public boolean equals(Object o) {
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231 | if (this == o) return true;
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232 | if (o == null || getClass() != o.getClass()) return false;
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233 | Notification that = (Notification) o;
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234 | return duration == that.duration
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235 | && Objects.equals(getContentTextOrComponent(), that.getContentTextOrComponent())
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236 | && Objects.equals(helpTopic, that.helpTopic);
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237 | }
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238 |
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239 | @Override
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240 | public int hashCode() {
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241 | return Objects.hash(getContentTextOrComponent(), duration, helpTopic);
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242 | }
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243 |
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244 | @Override
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245 | public String toString() {
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246 | return "Notification{" +
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247 | "content=" + getContentTextOrComponent() +
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248 | ", duration=" + duration +
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249 | ", helpTopic='" + helpTopic + '\'' +
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250 | '}';
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251 | }
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252 | }
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