src/gui/guiChatConsole.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "guiChatConsole.h"
  21 #include "chat.h"
  22 #include "client/client.h"
  23 #include "debug.h"
  24 #include "gettime.h"
  25 #include "client/keycode.h"
  26 #include "settings.h"
  27 #include "porting.h"
  28 #include "client/tile.h"
  29 #include "client/fontengine.h"
  30 #include "log.h"
  31 #include "gettext.h"
  32 #include "irrlicht_changes/CGUITTFont.h"
  33 #include "util/string.h"
  34 #include <string>
  35
  36 inline u32 clamp_u8(s32 value)
  37 {
  38         return (u32) MYMIN(MYMAX(value, 0), 255);
  39 }
  40
  41 inline bool isInCtrlKeys(const irr::EKEY_CODE& kc)
  42 {
  43         return kc == KEY_LCONTROL || kc == KEY_RCONTROL || kc == KEY_CONTROL;
  44 }
  45
  46 GUIChatConsole::GUIChatConsole(
  47                 gui::IGUIEnvironment* env,
  48                 gui::IGUIElement* parent,
  49                 s32 id,
  50                 ChatBackend* backend,
  51                 Client* client,
  52                 IMenuManager* menumgr
  53 ):
  54         IGUIElement(gui::EGUIET_ELEMENT, env, parent, id,
  55                         core::rect<s32>(0,0,100,100)),
  56         m_chat_backend(backend),
  57         m_client(client),
  58         m_menumgr(menumgr),
  59         m_animate_time_old(porting::getTimeMs())
  60 {
  61         // load background settings
  62         s32 console_alpha = g_settings->getS32("console_alpha");
  63         m_background_color.setAlpha(clamp_u8(console_alpha));
  64
  65         // load the background texture depending on settings
  66         ITextureSource *tsrc = client->getTextureSource();
  67         if (tsrc->isKnownSourceImage("background_chat.jpg")) {
  68                 m_background = tsrc->getTexture("background_chat.jpg");
  69                 m_background_color.setRed(255);
  70                 m_background_color.setGreen(255);
  71                 m_background_color.setBlue(255);
  72         } else {
  73                 v3f console_color = g_settings->getV3F("console_color");
  74                 m_background_color.setRed(clamp_u8(myround(console_color.X)));
  75                 m_background_color.setGreen(clamp_u8(myround(console_color.Y)));
  76                 m_background_color.setBlue(clamp_u8(myround(console_color.Z)));
  77         }
  78
  79         const u16 chat_font_size = g_settings->getU16("chat_font_size");
  80         m_font = g_fontengine->getFont(chat_font_size != 0 ?
  81                 rangelim(chat_font_size, 5, 72) : FONT_SIZE_UNSPECIFIED, FM_Mono);
  82
  83         if (!m_font) {
  84                 errorstream << "GUIChatConsole: Unable to load mono font" << std::endl;
  85         } else {
  86                 core::dimension2d<u32> dim = m_font->getDimension(L"M");
  87                 m_fontsize = v2u32(dim.Width, dim.Height);
  88                 m_font->grab();
  89         }
  90         m_fontsize.X = MYMAX(m_fontsize.X, 1);
  91         m_fontsize.Y = MYMAX(m_fontsize.Y, 1);
  92
  93         // set default cursor options
  94         setCursor(true, true, 2.0, 0.1);
  95
  96         // track ctrl keys for mouse event
  97         m_is_ctrl_down = false;
  98         m_cache_clickable_chat_weblinks = g_settings->getBool("clickable_chat_weblinks");
  99 }
 100
 101 GUIChatConsole::~GUIChatConsole()
 102 {
 103         if (m_font)
 104                 m_font->drop();
 105 }
 106
 107 void GUIChatConsole::openConsole(f32 scale)
 108 {
 109         assert(scale > 0.0f && scale <= 1.0f);
 110
 111         m_open = true;
 112         m_desired_height_fraction = scale;
 113         m_desired_height = scale * m_screensize.Y;
 114         reformatConsole();
 115         m_animate_time_old = porting::getTimeMs();
 116         IGUIElement::setVisible(true);
 117         Environment->setFocus(this);
 118         m_menumgr->createdMenu(this);
 119 }
 120
 121 bool GUIChatConsole::isOpen() const
 122 {
 123         return m_open;
 124 }
 125
 126 bool GUIChatConsole::isOpenInhibited() const
 127 {
 128         return m_open_inhibited > 0;
 129 }
 130
 131 void GUIChatConsole::closeConsole()
 132 {
 133         m_open = false;
 134         Environment->removeFocus(this);
 135         m_menumgr->deletingMenu(this);
 136 }
 137
 138 void GUIChatConsole::closeConsoleAtOnce()
 139 {
 140         closeConsole();
 141         m_height = 0;
 142         recalculateConsolePosition();
 143 }
 144
 145 void GUIChatConsole::replaceAndAddToHistory(const std::wstring &line)
 146 {
 147         ChatPrompt& prompt = m_chat_backend->getPrompt();
 148         prompt.addToHistory(prompt.getLine());
 149         prompt.replace(line);
 150 }
 151
 152
 153 void GUIChatConsole::setCursor(
 154         bool visible, bool blinking, f32 blink_speed, f32 relative_height)
 155 {
 156         if (visible)
 157         {
 158                 if (blinking)
 159                 {
 160                         // leave m_cursor_blink unchanged
 161                         m_cursor_blink_speed = blink_speed;
 162                 }
 163                 else
 164                 {
 165                         m_cursor_blink = 0x8000;  // on
 166                         m_cursor_blink_speed = 0.0;
 167                 }
 168         }
 169         else
 170         {
 171                 m_cursor_blink = 0;  // off
 172                 m_cursor_blink_speed = 0.0;
 173         }
 174         m_cursor_height = relative_height;
 175 }
 176
 177 void GUIChatConsole::draw()
 178 {
 179         if(!IsVisible)
 180                 return;
 181
 182         video::IVideoDriver* driver = Environment->getVideoDriver();
 183
 184         // Check screen size
 185         v2u32 screensize = driver->getScreenSize();
 186         if (screensize != m_screensize)
 187         {
 188                 // screen size has changed
 189                 // scale current console height to new window size
 190                 if (m_screensize.Y != 0)
 191                         m_height = m_height * screensize.Y / m_screensize.Y;
 192                 m_screensize = screensize;
 193                 m_desired_height = m_desired_height_fraction * m_screensize.Y;
 194                 reformatConsole();
 195         }
 196
 197         // Animation
 198         u64 now = porting::getTimeMs();
 199         animate(now - m_animate_time_old);
 200         m_animate_time_old = now;
 201
 202         // Draw console elements if visible
 203         if (m_height > 0)
 204         {
 205                 drawBackground();
 206                 drawText();
 207                 drawPrompt();
 208         }
 209
 210         gui::IGUIElement::draw();
 211 }
 212
 213 void GUIChatConsole::reformatConsole()
 214 {
 215         s32 cols = m_screensize.X / m_fontsize.X - 2; // make room for a margin (looks better)
 216         s32 rows = m_desired_height / m_fontsize.Y - 1; // make room for the input prompt
 217         if (cols <= 0 || rows <= 0)
 218                 cols = rows = 0;
 219         recalculateConsolePosition();
 220         m_chat_backend->reformat(cols, rows);
 221 }
 222
 223 void GUIChatConsole::recalculateConsolePosition()
 224 {
 225         core::rect<s32> rect(0, 0, m_screensize.X, m_height);
 226         DesiredRect = rect;
 227         recalculateAbsolutePosition(false);
 228 }
 229
 230 void GUIChatConsole::animate(u32 msec)
 231 {
 232         // animate the console height
 233         s32 goal = m_open ? m_desired_height : 0;
 234
 235         // Set invisible if close animation finished (reset by openConsole)
 236         // This function (animate()) is never called once its visibility becomes false so do not
 237         //              actually set visible to false before the inhibited period is over
 238         if (!m_open && m_height == 0 && m_open_inhibited == 0)
 239                 IGUIElement::setVisible(false);
 240
 241         if (m_height != goal)
 242         {
 243                 s32 max_change = msec * m_screensize.Y * (m_height_speed / 1000.0);
 244                 if (max_change == 0)
 245                         max_change = 1;
 246
 247                 if (m_height < goal)
 248                 {
 249                         // increase height
 250                         if (m_height + max_change < goal)
 251                                 m_height += max_change;
 252                         else
 253                                 m_height = goal;
 254                 }
 255                 else
 256                 {
 257                         // decrease height
 258                         if (m_height > goal + max_change)
 259                                 m_height -= max_change;
 260                         else
 261                                 m_height = goal;
 262                 }
 263
 264                 recalculateConsolePosition();
 265         }
 266
 267         // blink the cursor
 268         if (m_cursor_blink_speed != 0.0)
 269         {
 270                 u32 blink_increase = 0x10000 * msec * (m_cursor_blink_speed / 1000.0);
 271                 if (blink_increase == 0)
 272                         blink_increase = 1;
 273                 m_cursor_blink = ((m_cursor_blink + blink_increase) & 0xffff);
 274         }
 275
 276         // decrease open inhibit counter
 277         if (m_open_inhibited > msec)
 278                 m_open_inhibited -= msec;
 279         else
 280                 m_open_inhibited = 0;
 281 }
 282
 283 void GUIChatConsole::drawBackground()
 284 {
 285         video::IVideoDriver* driver = Environment->getVideoDriver();
 286         if (m_background != NULL)
 287         {
 288                 core::rect<s32> sourcerect(0, -m_height, m_screensize.X, 0);
 289                 driver->draw2DImage(
 290                         m_background,
 291                         v2s32(0, 0),
 292                         sourcerect,
 293                         &AbsoluteClippingRect,
 294                         m_background_color,
 295                         false);
 296         }
 297         else
 298         {
 299                 driver->draw2DRectangle(
 300                         m_background_color,
 301                         core::rect<s32>(0, 0, m_screensize.X, m_height),
 302                         &AbsoluteClippingRect);
 303         }
 304 }
 305
 306 void GUIChatConsole::drawText()
 307 {
 308         if (m_font == NULL)
 309                 return;
 310
 311         ChatBuffer& buf = m_chat_backend->getConsoleBuffer();
 312         for (u32 row = 0; row < buf.getRows(); ++row)
 313         {
 314                 const ChatFormattedLine& line = buf.getFormattedLine(row);
 315                 if (line.fragments.empty())
 316                         continue;
 317
 318                 s32 line_height = m_fontsize.Y;
 319                 s32 y = row * line_height + m_height - m_desired_height;
 320                 if (y + line_height < 0)
 321                         continue;
 322
 323                 for (const ChatFormattedFragment &fragment : line.fragments) {
 324                         s32 x = (fragment.column + 1) * m_fontsize.X;
 325                         core::rect<s32> destrect(
 326                                 x, y, x + m_fontsize.X * fragment.text.size(), y + m_fontsize.Y);
 327
 328                         if (m_font->getType() == irr::gui::EGFT_CUSTOM) {
 329                                 // Draw colored text if possible
 330                                 gui::CGUITTFont *tmp = static_cast<gui::CGUITTFont*>(m_font);
 331                                 tmp->draw(
 332                                         fragment.text,
 333                                         destrect,
 334                                         false,
 335                                         false,
 336                                         &AbsoluteClippingRect);
 337                         } else {
 338                                 // Otherwise use standard text
 339                                 m_font->draw(
 340                                         fragment.text.c_str(),
 341                                         destrect,
 342                                         video::SColor(255, 255, 255, 255),
 343                                         false,
 344                                         false,
 345                                         &AbsoluteClippingRect);
 346                         }
 347                 }
 348         }
 349 }
 350
 351 void GUIChatConsole::drawPrompt()
 352 {
 353         if (!m_font)
 354                 return;
 355
 356         ChatPrompt& prompt = m_chat_backend->getPrompt();
 357         std::wstring prompt_text = prompt.getVisiblePortion();
 358
 359         u32 font_width  = m_fontsize.X;
 360         u32 font_height = m_fontsize.Y;
 361
 362         core::dimension2d<u32> size = m_font->getDimension(prompt_text.c_str());
 363         u32 text_width = size.Width;
 364         if (size.Height > font_height)
 365                 font_height = size.Height;
 366
 367         u32 row = m_chat_backend->getConsoleBuffer().getRows();
 368         s32 y = row * font_height + m_height - m_desired_height;
 369
 370         core::rect<s32> destrect(
 371                 font_width, y, font_width + text_width, y + font_height);
 372         m_font->draw(
 373                 prompt_text.c_str(),
 374                 destrect,
 375                 video::SColor(255, 255, 255, 255),
 376                 false,
 377                 false,
 378                 &AbsoluteClippingRect);
 379
 380         // Draw the cursor during on periods
 381         if ((m_cursor_blink & 0x8000) != 0)
 382         {
 383                 s32 cursor_pos = prompt.getVisibleCursorPosition();
 384
 385                 if (cursor_pos >= 0)
 386                 {
 387
 388                         u32 text_to_cursor_pos_width = m_font->getDimension(prompt_text.substr(0, cursor_pos).c_str()).Width;
 389
 390                         s32 cursor_len = prompt.getCursorLength();
 391                         video::IVideoDriver* driver = Environment->getVideoDriver();
 392                         s32 x = font_width + text_to_cursor_pos_width;
 393                         core::rect<s32> destrect(
 394                                 x,
 395                                 y + font_height * (1.0 - m_cursor_height),
 396                                 x + font_width * MYMAX(cursor_len, 1),
 397                                 y + font_height * (cursor_len ? m_cursor_height+1 : 1)
 398                         );
 399                         video::SColor cursor_color(255,255,255,255);
 400                         driver->draw2DRectangle(
 401                                 cursor_color,
 402                                 destrect,
 403                                 &AbsoluteClippingRect);
 404                 }
 405         }
 406
 407 }
 408
 409 bool GUIChatConsole::OnEvent(const SEvent& event)
 410 {
 411
 412         ChatPrompt &prompt = m_chat_backend->getPrompt();
 413
 414         if (event.EventType == EET_KEY_INPUT_EVENT && !event.KeyInput.PressedDown)
 415         {
 416                 // CTRL up
 417                 if (isInCtrlKeys(event.KeyInput.Key))
 418                 {
 419                         m_is_ctrl_down = false;
 420                 }
 421         }
 422         else if(event.EventType == EET_KEY_INPUT_EVENT && event.KeyInput.PressedDown)
 423         {
 424                 // CTRL down
 425                 if (isInCtrlKeys(event.KeyInput.Key)) {
 426                         m_is_ctrl_down = true;
 427                 }
 428
 429                 // Key input
 430                 if (KeyPress(event.KeyInput) == getKeySetting("keymap_console")) {
 431                         closeConsole();
 432
 433                         // inhibit open so the_game doesn't reopen immediately
 434                         m_open_inhibited = 50;
 435                         m_close_on_enter = false;
 436                         return true;
 437                 }
 438
 439                 // Mac OS sends private use characters along with some keys.
 440                 bool has_char = event.KeyInput.Char && !event.KeyInput.Control &&
 441                                 !iswcntrl(event.KeyInput.Char) && !IS_PRIVATE_USE_CHAR(event.KeyInput.Char);
 442
 443                 if (event.KeyInput.Key == KEY_ESCAPE) {
 444                         closeConsoleAtOnce();
 445                         m_close_on_enter = false;
 446                         // inhibit open so the_game doesn't reopen immediately
 447                         m_open_inhibited = 1; // so the ESCAPE button doesn't open the "pause menu"
 448                         return true;
 449                 }
 450                 else if(event.KeyInput.Key == KEY_PRIOR)
 451                 {
 452                         if (!has_char) { // no num lock
 453                                 m_chat_backend->scrollPageUp();
 454                                 return true;
 455                         }
 456                 }
 457                 else if(event.KeyInput.Key == KEY_NEXT)
 458                 {
 459                         if (!has_char) { // no num lock
 460                                 m_chat_backend->scrollPageDown();
 461                                 return true;
 462                         }
 463                 }
 464                 else if(event.KeyInput.Key == KEY_RETURN)
 465                 {
 466                         prompt.addToHistory(prompt.getLine());
 467                         std::wstring text = prompt.replace(L"");
 468                         m_client->typeChatMessage(text);
 469                         if (m_close_on_enter) {
 470                                 closeConsoleAtOnce();
 471                                 m_close_on_enter = false;
 472                         }
 473                         return true;
 474                 }
 475                 else if(event.KeyInput.Key == KEY_UP)
 476                 {
 477                         if (!has_char) { // no num lock
 478                                 // Up pressed
 479                                 // Move back in history
 480                                 prompt.historyPrev();
 481                                 return true;
 482                         }
 483                 }
 484                 else if(event.KeyInput.Key == KEY_DOWN)
 485                 {
 486                         if (!has_char) { // no num lock
 487                                 // Down pressed
 488                                 // Move forward in history
 489                                 prompt.historyNext();
 490                                 return true;
 491                         }
 492                 }
 493                 else if(event.KeyInput.Key == KEY_LEFT || event.KeyInput.Key == KEY_RIGHT)
 494                 {
 495                         if (!has_char) { // no num lock
 496                                 // Left/right pressed
 497                                 // Move/select character/word to the left depending on control and shift keys
 498                                 ChatPrompt::CursorOp op = event.KeyInput.Shift ?
 499                                         ChatPrompt::CURSOROP_SELECT :
 500                                         ChatPrompt::CURSOROP_MOVE;
 501                                 ChatPrompt::CursorOpDir dir = event.KeyInput.Key == KEY_LEFT ?
 502                                         ChatPrompt::CURSOROP_DIR_LEFT :
 503                                         ChatPrompt::CURSOROP_DIR_RIGHT;
 504                                 ChatPrompt::CursorOpScope scope = event.KeyInput.Control ?
 505                                         ChatPrompt::CURSOROP_SCOPE_WORD :
 506                                         ChatPrompt::CURSOROP_SCOPE_CHARACTER;
 507                                 prompt.cursorOperation(op, dir, scope);
 508                                 return true;
 509                         }
 510                 }
 511                 else if(event.KeyInput.Key == KEY_HOME)
 512                 {
 513                         if (!has_char) { // no num lock
 514                                 // Home pressed
 515                                 // move to beginning of line
 516                                 prompt.cursorOperation(
 517                                         ChatPrompt::CURSOROP_MOVE,
 518                                         ChatPrompt::CURSOROP_DIR_LEFT,
 519                                         ChatPrompt::CURSOROP_SCOPE_LINE);
 520                                 return true;
 521                         }
 522                 }
 523                 else if(event.KeyInput.Key == KEY_END)
 524                 {
 525                         if (!has_char) { // no num lock
 526                                 // End pressed
 527                                 // move to end of line
 528                                 prompt.cursorOperation(
 529                                         ChatPrompt::CURSOROP_MOVE,
 530                                         ChatPrompt::CURSOROP_DIR_RIGHT,
 531                                         ChatPrompt::CURSOROP_SCOPE_LINE);
 532                                 return true;
 533                         }
 534                 }
 535                 else if(event.KeyInput.Key == KEY_BACK)
 536                 {
 537                         // Backspace or Ctrl-Backspace pressed
 538                         // delete character / word to the left
 539                         ChatPrompt::CursorOpScope scope =
 540                                 event.KeyInput.Control ?
 541                                 ChatPrompt::CURSOROP_SCOPE_WORD :
 542                                 ChatPrompt::CURSOROP_SCOPE_CHARACTER;
 543                         prompt.cursorOperation(
 544                                 ChatPrompt::CURSOROP_DELETE,
 545                                 ChatPrompt::CURSOROP_DIR_LEFT,
 546                                 scope);
 547                         return true;
 548                 }
 549                 else if(event.KeyInput.Key == KEY_DELETE)
 550                 {
 551                         if (!has_char) { // no num lock
 552                                 // Delete or Ctrl-Delete pressed
 553                                 // delete character / word to the right
 554                                 ChatPrompt::CursorOpScope scope =
 555                                         event.KeyInput.Control ?
 556                                         ChatPrompt::CURSOROP_SCOPE_WORD :
 557                                         ChatPrompt::CURSOROP_SCOPE_CHARACTER;
 558                                 prompt.cursorOperation(
 559                                         ChatPrompt::CURSOROP_DELETE,
 560                                         ChatPrompt::CURSOROP_DIR_RIGHT,
 561                                         scope);
 562                                 return true;
 563                         }
 564                 }
 565                 else if(event.KeyInput.Key == KEY_KEY_A && event.KeyInput.Control)
 566                 {
 567                         // Ctrl-A pressed
 568                         // Select all text
 569                         prompt.cursorOperation(
 570                                 ChatPrompt::CURSOROP_SELECT,
 571                                 ChatPrompt::CURSOROP_DIR_LEFT, // Ignored
 572                                 ChatPrompt::CURSOROP_SCOPE_LINE);
 573                         return true;
 574                 }
 575                 else if(event.KeyInput.Key == KEY_KEY_C && event.KeyInput.Control)
 576                 {
 577                         // Ctrl-C pressed
 578                         // Copy text to clipboard
 579                         if (prompt.getCursorLength() <= 0)
 580                                 return true;
 581                         std::wstring wselected = prompt.getSelection();
 582                         std::string selected = wide_to_utf8(wselected);
 583                         Environment->getOSOperator()->copyToClipboard(selected.c_str());
 584                         return true;
 585                 }
 586                 else if(event.KeyInput.Key == KEY_KEY_V && event.KeyInput.Control)
 587                 {
 588                         // Ctrl-V pressed
 589                         // paste text from clipboard
 590                         if (prompt.getCursorLength() > 0) {
 591                                 // Delete selected section of text
 592                                 prompt.cursorOperation(
 593                                         ChatPrompt::CURSOROP_DELETE,
 594                                         ChatPrompt::CURSOROP_DIR_LEFT, // Ignored
 595                                         ChatPrompt::CURSOROP_SCOPE_SELECTION);
 596                         }
 597                         IOSOperator *os_operator = Environment->getOSOperator();
 598                         const c8 *text = os_operator->getTextFromClipboard();
 599                         if (!text)
 600                                 return true;
 601                         prompt.input(utf8_to_wide(text));
 602                         return true;
 603                 }
 604                 else if(event.KeyInput.Key == KEY_KEY_X && event.KeyInput.Control)
 605                 {
 606                         // Ctrl-X pressed
 607                         // Cut text to clipboard
 608                         if (prompt.getCursorLength() <= 0)
 609                                 return true;
 610                         std::wstring wselected = prompt.getSelection();
 611                         std::string selected = wide_to_utf8(wselected);
 612                         Environment->getOSOperator()->copyToClipboard(selected.c_str());
 613                         prompt.cursorOperation(
 614                                 ChatPrompt::CURSOROP_DELETE,
 615                                 ChatPrompt::CURSOROP_DIR_LEFT, // Ignored
 616                                 ChatPrompt::CURSOROP_SCOPE_SELECTION);
 617                         return true;
 618                 }
 619                 else if(event.KeyInput.Key == KEY_KEY_U && event.KeyInput.Control)
 620                 {
 621                         // Ctrl-U pressed
 622                         // kill line to left end
 623                         prompt.cursorOperation(
 624                                 ChatPrompt::CURSOROP_DELETE,
 625                                 ChatPrompt::CURSOROP_DIR_LEFT,
 626                                 ChatPrompt::CURSOROP_SCOPE_LINE);
 627                         return true;
 628                 }
 629                 else if(event.KeyInput.Key == KEY_KEY_K && event.KeyInput.Control)
 630                 {
 631                         // Ctrl-K pressed
 632                         // kill line to right end
 633                         prompt.cursorOperation(
 634                                 ChatPrompt::CURSOROP_DELETE,
 635                                 ChatPrompt::CURSOROP_DIR_RIGHT,
 636                                 ChatPrompt::CURSOROP_SCOPE_LINE);
 637                         return true;
 638                 }
 639                 else if(event.KeyInput.Key == KEY_TAB)
 640                 {
 641                         // Tab or Shift-Tab pressed
 642                         // Nick completion
 643                         std::list<std::string> names = m_client->getConnectedPlayerNames();
 644                         bool backwards = event.KeyInput.Shift;
 645                         prompt.nickCompletion(names, backwards);
 646                         return true;
 647                 }
 648
 649                 if (has_char) {
 650                         prompt.input(event.KeyInput.Char);
 651                         return true;
 652                 }
 653         }
 654         else if(event.EventType == EET_MOUSE_INPUT_EVENT)
 655         {
 656                 if (event.MouseInput.Event == EMIE_MOUSE_WHEEL)
 657                 {
 658                         s32 rows = myround(-3.0 * event.MouseInput.Wheel);
 659                         m_chat_backend->scroll(rows);
 660                 }
 661                 // Middle click or ctrl-click opens weblink, if enabled in config
 662                 else if(m_cache_clickable_chat_weblinks && (
 663                                 event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN ||
 664                                 (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN && m_is_ctrl_down)
 665                                 ))
 666                 {
 667                         // If clicked within console output region
 668                         if (event.MouseInput.Y / m_fontsize.Y < (m_height / m_fontsize.Y) - 1 )
 669                         {
 670                                 // Translate pixel position to font position
 671                                 middleClick(event.MouseInput.X / m_fontsize.X, event.MouseInput.Y / m_fontsize.Y);
 672                         }
 673                 }
 674         }
 675         else if(event.EventType == EET_STRING_INPUT_EVENT)
 676         {
 677                 prompt.input(std::wstring(event.StringInput.Str->c_str()));
 678                 return true;
 679         }
 680
 681         return Parent ? Parent->OnEvent(event) : false;
 682 }
 683
 684 void GUIChatConsole::setVisible(bool visible)
 685 {
 686         m_open = visible;
 687         IGUIElement::setVisible(visible);
 688         if (!visible) {
 689                 m_height = 0;
 690                 recalculateConsolePosition();
 691         }
 692 }
 693
 694 void GUIChatConsole::middleClick(s32 col, s32 row)
 695 {
 696         // Prevent accidental rapid clicking
 697         static u64 s_oldtime = 0;
 698         u64 newtime = porting::getTimeMs();
 699
 700         // 0.6 seconds should suffice
 701         if (newtime - s_oldtime < 600)
 702                 return;
 703         s_oldtime = newtime;
 704
 705         const std::vector<ChatFormattedFragment> &
 706                         frags = m_chat_backend->getConsoleBuffer().getFormattedLine(row).fragments;
 707         std::string weblink = ""; // from frag meta
 708
 709         // Identify targetted fragment, if exists
 710         int indx = frags.size() - 1;
 711         if (indx < 0) {
 712                 // Invalid row, frags is empty
 713                 return;
 714         }
 715         // Scan from right to left, offset by 1 font space because left margin
 716         while (indx > -1 && (u32)col < frags[indx].column + 1) {
 717                 --indx;
 718         }
 719         if (indx > -1) {
 720                 weblink = frags[indx].weblink;
 721                 // Note if(indx < 0) then a frag somehow had a corrupt column field
 722         }
 723
 724         /*
 725         // Debug help. Please keep this in case adjustments are made later.
 726         std::string ws;
 727         ws = "Middleclick: (" + std::to_string(col) + ',' + std::to_string(row) + ')' + " frags:";
 728         // show all frags <position>(<length>) for the clicked row
 729         for (u32 i=0;i<frags.size();++i) {
 730                 if (indx == int(i))
 731                         // tag the actual clicked frag
 732                         ws += '*';
 733                 ws += std::to_string(frags.at(i).column) + '('
 734                         + std::to_string(frags.at(i).text.size()) + "),";
 735         }
 736         actionstream << ws << std::endl;
 737         */
 738
 739         // User notification
 740         if (weblink.size() != 0) {
 741                 std::ostringstream msg;
 742                 msg << " * ";
 743                 if (porting::open_url(weblink)) {
 744                         msg << gettext("Opening webpage");
 745                 }
 746                 else {
 747                         msg << gettext("Failed to open webpage");
 748                 }
 749                 msg << " '" << weblink << "'";
 750                 m_chat_backend->addUnparsedMessage(utf8_to_wide(msg.str()));
 751         }
 752 }