| 1 | package be.nikiroo.jvcard.tui; |
| 2 | |
| 3 | import java.util.Arrays; |
| 4 | import java.util.LinkedList; |
| 5 | import java.util.List; |
| 6 | |
| 7 | import be.nikiroo.jvcard.Card; |
| 8 | import be.nikiroo.jvcard.Contact; |
| 9 | import be.nikiroo.jvcard.i18n.Trans; |
| 10 | import be.nikiroo.jvcard.i18n.Trans.StringId; |
| 11 | import be.nikiroo.jvcard.tui.KeyAction.Mode; |
| 12 | import be.nikiroo.jvcard.tui.UiColors.Element; |
| 13 | |
| 14 | import com.googlecode.lanterna.TerminalSize; |
| 15 | import com.googlecode.lanterna.gui2.BasicWindow; |
| 16 | import com.googlecode.lanterna.gui2.BorderLayout; |
| 17 | import com.googlecode.lanterna.gui2.Direction; |
| 18 | import com.googlecode.lanterna.gui2.Interactable; |
| 19 | import com.googlecode.lanterna.gui2.Label; |
| 20 | import com.googlecode.lanterna.gui2.LinearLayout; |
| 21 | import com.googlecode.lanterna.gui2.Panel; |
| 22 | import com.googlecode.lanterna.gui2.TextBox; |
| 23 | import com.googlecode.lanterna.gui2.TextGUIGraphics; |
| 24 | import com.googlecode.lanterna.gui2.Window; |
| 25 | import com.googlecode.lanterna.input.KeyStroke; |
| 26 | import com.googlecode.lanterna.input.KeyType; |
| 27 | |
| 28 | /** |
| 29 | * This is the main "window" of the program. It will host one |
| 30 | * {@link MainContent} at any one time. |
| 31 | * |
| 32 | * @author niki |
| 33 | * |
| 34 | */ |
| 35 | public class MainWindow extends BasicWindow { |
| 36 | private List<KeyAction> defaultActions = new LinkedList<KeyAction>(); |
| 37 | private List<KeyAction> actions = new LinkedList<KeyAction>(); |
| 38 | private List<MainContent> content = new LinkedList<MainContent>(); |
| 39 | private boolean actionsPadded; |
| 40 | private Boolean waitForOneKeyAnswer; // true, false, (null = do not wait for |
| 41 | // an answer) |
| 42 | private String title; |
| 43 | private Panel titlePanel; |
| 44 | private Panel mainPanel; |
| 45 | private Panel contentPanel; |
| 46 | private Panel actionPanel; |
| 47 | private Panel messagePanel; |
| 48 | private TextBox text; |
| 49 | |
| 50 | public MainWindow() { |
| 51 | this(null); |
| 52 | } |
| 53 | |
| 54 | public MainWindow(MainContent content) { |
| 55 | super(content == null ? "" : content.getTitle()); |
| 56 | |
| 57 | setHints(Arrays.asList(Window.Hint.FULL_SCREEN, |
| 58 | Window.Hint.NO_DECORATIONS, Window.Hint.FIT_TERMINAL_WINDOW)); |
| 59 | |
| 60 | defaultActions.add(new KeyAction(Mode.BACK, 'q', |
| 61 | StringId.KEY_ACTION_BACK)); |
| 62 | defaultActions.add(new KeyAction(Mode.BACK, KeyType.Escape, |
| 63 | StringId.NULL)); |
| 64 | defaultActions.add(new KeyAction(Mode.HELP, 'h', |
| 65 | StringId.KEY_ACTION_HELP)); |
| 66 | defaultActions.add(new KeyAction(Mode.HELP, KeyType.F1, StringId.NULL)); |
| 67 | |
| 68 | actionPanel = new Panel(); |
| 69 | contentPanel = new Panel(); |
| 70 | mainPanel = new Panel(); |
| 71 | messagePanel = new Panel(); |
| 72 | titlePanel = new Panel(); |
| 73 | |
| 74 | Panel actionMessagePanel = new Panel(); |
| 75 | |
| 76 | LinearLayout llayout = new LinearLayout(Direction.HORIZONTAL); |
| 77 | llayout.setSpacing(0); |
| 78 | actionPanel.setLayoutManager(llayout); |
| 79 | |
| 80 | llayout = new LinearLayout(Direction.VERTICAL); |
| 81 | llayout.setSpacing(0); |
| 82 | titlePanel.setLayoutManager(llayout); |
| 83 | |
| 84 | llayout = new LinearLayout(Direction.VERTICAL); |
| 85 | llayout.setSpacing(0); |
| 86 | messagePanel.setLayoutManager(llayout); |
| 87 | |
| 88 | BorderLayout blayout = new BorderLayout(); |
| 89 | mainPanel.setLayoutManager(blayout); |
| 90 | |
| 91 | blayout = new BorderLayout(); |
| 92 | contentPanel.setLayoutManager(blayout); |
| 93 | |
| 94 | blayout = new BorderLayout(); |
| 95 | actionMessagePanel.setLayoutManager(blayout); |
| 96 | |
| 97 | actionMessagePanel |
| 98 | .addComponent(messagePanel, BorderLayout.Location.TOP); |
| 99 | actionMessagePanel.addComponent(actionPanel, |
| 100 | BorderLayout.Location.CENTER); |
| 101 | |
| 102 | mainPanel.addComponent(titlePanel, BorderLayout.Location.TOP); |
| 103 | mainPanel.addComponent(contentPanel, BorderLayout.Location.CENTER); |
| 104 | mainPanel |
| 105 | .addComponent(actionMessagePanel, BorderLayout.Location.BOTTOM); |
| 106 | |
| 107 | pushContent(content); |
| 108 | |
| 109 | setComponent(mainPanel); |
| 110 | } |
| 111 | |
| 112 | public void pushContent(MainContent content) { |
| 113 | List<KeyAction> actions = null; |
| 114 | String title = null; |
| 115 | |
| 116 | contentPanel.removeAllComponents(); |
| 117 | if (content != null) { |
| 118 | title = content.getTitle(); |
| 119 | actions = content.getKeyBindings(); |
| 120 | contentPanel.addComponent(content, BorderLayout.Location.CENTER); |
| 121 | this.content.add(content); |
| 122 | } |
| 123 | |
| 124 | setTitle(title); |
| 125 | setActions(actions, true, true); |
| 126 | invalidate(); |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * Set the application title. |
| 131 | * |
| 132 | * @param title |
| 133 | * the new title or NULL for the default title |
| 134 | */ |
| 135 | public void setTitle(String title) { |
| 136 | if (title == null) { |
| 137 | title = Trans.StringId.TITLE.trans(); |
| 138 | } |
| 139 | |
| 140 | if (!title.equals(this.title)) { |
| 141 | super.setTitle(title); |
| 142 | this.title = title; |
| 143 | } |
| 144 | |
| 145 | Label lbl = new Label(title); |
| 146 | titlePanel.removeAllComponents(); |
| 147 | |
| 148 | titlePanel.addComponent(lbl, LinearLayout |
| 149 | .createLayoutData(LinearLayout.Alignment.Center)); |
| 150 | } |
| 151 | |
| 152 | @Override |
| 153 | public void draw(TextGUIGraphics graphics) { |
| 154 | setTitle(title); |
| 155 | if (!actionsPadded) { |
| 156 | // fill with "desc" colour |
| 157 | actionPanel.addComponent(UiColors.Element.ACTION_DESC |
| 158 | .createLabel(StringUtils.padString("", graphics.getSize() |
| 159 | .getColumns()))); |
| 160 | actionsPadded = true; |
| 161 | } |
| 162 | super.draw(graphics); |
| 163 | } |
| 164 | |
| 165 | public MainContent popContent() { |
| 166 | MainContent removed = null; |
| 167 | MainContent prev = null; |
| 168 | if (content.size() > 0) |
| 169 | removed = content.remove(content.size() - 1); |
| 170 | if (content.size() > 0) |
| 171 | prev = content.remove(content.size() - 1); |
| 172 | pushContent(prev); |
| 173 | |
| 174 | return removed; |
| 175 | } |
| 176 | |
| 177 | private void setActions(List<KeyAction> actions, boolean allowKeys, |
| 178 | boolean enableDefaultactions) { |
| 179 | |
| 180 | this.actions.clear(); |
| 181 | actionsPadded = false; |
| 182 | |
| 183 | if (enableDefaultactions) |
| 184 | this.actions.addAll(defaultActions); |
| 185 | |
| 186 | if (actions != null) |
| 187 | this.actions.addAll(actions); |
| 188 | |
| 189 | actionPanel.removeAllComponents(); |
| 190 | for (KeyAction action : this.actions) { |
| 191 | String trans = " " + action.getStringId().trans() + " "; |
| 192 | |
| 193 | if (" ".equals(trans)) |
| 194 | continue; |
| 195 | |
| 196 | String keyTrans = ""; |
| 197 | switch (action.getKey().getKeyType()) { |
| 198 | case Enter: |
| 199 | keyTrans = " ⤶ "; |
| 200 | break; |
| 201 | case Tab: |
| 202 | keyTrans = " ↹ "; |
| 203 | break; |
| 204 | case Character: |
| 205 | keyTrans = " " + action.getKey().getCharacter() + " "; |
| 206 | break; |
| 207 | default: |
| 208 | keyTrans = "" + action.getKey().getKeyType(); |
| 209 | int width = 3; |
| 210 | if (keyTrans.length() > width) { |
| 211 | keyTrans = keyTrans.substring(0, width); |
| 212 | } else if (keyTrans.length() < width) { |
| 213 | keyTrans = keyTrans |
| 214 | + new String(new char[width - keyTrans.length()]) |
| 215 | .replace('\0', ' '); |
| 216 | } |
| 217 | break; |
| 218 | } |
| 219 | |
| 220 | Panel kPane = new Panel(); |
| 221 | LinearLayout layout = new LinearLayout(Direction.HORIZONTAL); |
| 222 | layout.setSpacing(0); |
| 223 | kPane.setLayoutManager(layout); |
| 224 | |
| 225 | kPane.addComponent(UiColors.Element.ACTION_KEY |
| 226 | .createLabel(keyTrans)); |
| 227 | kPane.addComponent(UiColors.Element.ACTION_DESC.createLabel(trans)); |
| 228 | |
| 229 | actionPanel.addComponent(kPane); |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | /** |
| 234 | * Show the given message on screen. It will disappear at the next action. |
| 235 | * |
| 236 | * @param mess |
| 237 | * the message to display |
| 238 | * @param error |
| 239 | * TRUE for an error message, FALSE for an information message |
| 240 | */ |
| 241 | public void setMessage(String mess, boolean error) { |
| 242 | messagePanel.removeAllComponents(); |
| 243 | if (mess != null) { |
| 244 | Element element = (error ? UiColors.Element.LINE_MESSAGE_ERR |
| 245 | : UiColors.Element.LINE_MESSAGE); |
| 246 | Label lbl = element.createLabel(" " + mess + " "); |
| 247 | messagePanel.addComponent(lbl, LinearLayout |
| 248 | .createLayoutData(LinearLayout.Alignment.Center)); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | public void setQuestion(String mess, boolean oneKey) { |
| 253 | messagePanel.removeAllComponents(); |
| 254 | if (mess != null) { |
| 255 | waitForOneKeyAnswer = oneKey; |
| 256 | |
| 257 | Panel hpanel = new Panel(); |
| 258 | LinearLayout llayout = new LinearLayout(Direction.HORIZONTAL); |
| 259 | llayout.setSpacing(0); |
| 260 | hpanel.setLayoutManager(llayout); |
| 261 | |
| 262 | Label lbl = UiColors.Element.LINE_MESSAGE_QUESTION.createLabel(" " |
| 263 | + mess + " "); |
| 264 | text = new TextBox(new TerminalSize(getSize().getColumns() |
| 265 | - lbl.getSize().getColumns(), 1)); |
| 266 | |
| 267 | hpanel.addComponent(lbl, LinearLayout |
| 268 | .createLayoutData(LinearLayout.Alignment.Beginning)); |
| 269 | hpanel.addComponent(text, LinearLayout |
| 270 | .createLayoutData(LinearLayout.Alignment.Fill)); |
| 271 | |
| 272 | messagePanel.addComponent(hpanel, LinearLayout |
| 273 | .createLayoutData(LinearLayout.Alignment.Beginning)); |
| 274 | |
| 275 | this.setFocusedInteractable(text); |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | private String handleQuestion(KeyStroke key) { |
| 280 | String answer = null; |
| 281 | |
| 282 | if (waitForOneKeyAnswer) { |
| 283 | answer = "" + key.getCharacter(); |
| 284 | } else { |
| 285 | if (key.getKeyType() == KeyType.Enter) { |
| 286 | if (text != null) |
| 287 | answer = text.getText(); |
| 288 | else |
| 289 | answer = ""; |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | if (answer != null) { |
| 294 | Interactable focus = null; |
| 295 | if (this.content.size() > 0) |
| 296 | // focus = content.get(0).getDefaultFocusElement(); |
| 297 | focus = content.get(0).nextFocus(null); |
| 298 | |
| 299 | this.setFocusedInteractable(focus); |
| 300 | } |
| 301 | |
| 302 | return answer; |
| 303 | } |
| 304 | |
| 305 | @Override |
| 306 | public boolean handleInput(KeyStroke key) { |
| 307 | boolean handled = false; |
| 308 | |
| 309 | if (waitForOneKeyAnswer != null) { |
| 310 | String answer = handleQuestion(key); |
| 311 | if (answer != null) { |
| 312 | waitForOneKeyAnswer = null; |
| 313 | setMessage("ANS: " + answer, false); |
| 314 | |
| 315 | handled = true; |
| 316 | } |
| 317 | } else { |
| 318 | setMessage(null, false); |
| 319 | |
| 320 | for (KeyAction action : actions) { |
| 321 | if (!action.match(key)) |
| 322 | continue; |
| 323 | |
| 324 | handled = true; |
| 325 | |
| 326 | if (action.onAction()) { |
| 327 | switch (action.getMode()) { |
| 328 | case MOVE: |
| 329 | int x = 0; |
| 330 | int y = 0; |
| 331 | |
| 332 | if (action.getKey().getKeyType() == KeyType.ArrowUp) |
| 333 | x = -1; |
| 334 | if (action.getKey().getKeyType() == KeyType.ArrowDown) |
| 335 | x = 1; |
| 336 | if (action.getKey().getKeyType() == KeyType.ArrowLeft) |
| 337 | y = -1; |
| 338 | if (action.getKey().getKeyType() == KeyType.ArrowRight) |
| 339 | y = 1; |
| 340 | |
| 341 | if (content.size() > 0) { |
| 342 | String err = content.get(content.size() - 1).move( |
| 343 | x, y); |
| 344 | if (err != null) |
| 345 | setMessage(err, true); |
| 346 | } |
| 347 | |
| 348 | break; |
| 349 | // mode with windows: |
| 350 | case CONTACT_LIST: |
| 351 | Card card = action.getCard(); |
| 352 | if (card != null) { |
| 353 | pushContent(new ContactList(card)); |
| 354 | } |
| 355 | break; |
| 356 | case CONTACT_DETAILS: |
| 357 | Contact contact = action.getContact(); |
| 358 | if (contact != null) { |
| 359 | pushContent(new ContactDetails(contact)); |
| 360 | } |
| 361 | break; |
| 362 | // mode interpreted by MainWindow: |
| 363 | case HELP: |
| 364 | // TODO |
| 365 | // setMessage("Help! I need somebody! Help!", false); |
| 366 | setQuestion("Test question?", false); |
| 367 | handled = true; |
| 368 | break; |
| 369 | case BACK: |
| 370 | popContent(); |
| 371 | if (content.size() == 0) |
| 372 | close(); |
| 373 | break; |
| 374 | default: |
| 375 | case NONE: |
| 376 | break; |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | break; |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | if (!handled) |
| 385 | handled = super.handleInput(key); |
| 386 | |
| 387 | return handled; |
| 388 | } |
| 389 | } |