| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: htmlwin.cpp |
| 3 | // Purpose: wxHtmlWindow class for parsing & displaying HTML (implementation) |
| 4 | // Author: Vaclav Slavik |
| 5 | // RCS-ID: $Id$ |
| 6 | // Copyright: (c) 1999 Vaclav Slavik |
| 7 | // Licence: wxWindows Licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | |
| 11 | #ifdef __GNUG__ |
| 12 | #pragma implementation "htmlwin.h" |
| 13 | #pragma implementation "htmlproc.h" |
| 14 | #endif |
| 15 | |
| 16 | #include "wx/wxprec.h" |
| 17 | |
| 18 | #include "wx/defs.h" |
| 19 | #if wxUSE_HTML && wxUSE_STREAMS |
| 20 | |
| 21 | #ifdef __BORDLANDC__ |
| 22 | #pragma hdrstop |
| 23 | #endif |
| 24 | |
| 25 | #ifndef WXPRECOMP |
| 26 | #include "wx/log.h" |
| 27 | #include "wx/intl.h" |
| 28 | #include "wx/dcclient.h" |
| 29 | #include "wx/frame.h" |
| 30 | #endif |
| 31 | |
| 32 | #include "wx/html/htmlwin.h" |
| 33 | #include "wx/html/htmlproc.h" |
| 34 | #include "wx/list.h" |
| 35 | |
| 36 | #include "wx/arrimpl.cpp" |
| 37 | #include "wx/listimpl.cpp" |
| 38 | |
| 39 | //----------------------------------------------------------------------------- |
| 40 | // wxHtmlHistoryItem |
| 41 | //----------------------------------------------------------------------------- |
| 42 | |
| 43 | // item of history list |
| 44 | class WXDLLEXPORT wxHtmlHistoryItem : public wxObject |
| 45 | { |
| 46 | public: |
| 47 | wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;} |
| 48 | int GetPos() const {return m_Pos;} |
| 49 | void SetPos(int p) {m_Pos = p;} |
| 50 | const wxString& GetPage() const {return m_Page;} |
| 51 | const wxString& GetAnchor() const {return m_Anchor;} |
| 52 | |
| 53 | private: |
| 54 | wxString m_Page; |
| 55 | wxString m_Anchor; |
| 56 | int m_Pos; |
| 57 | }; |
| 58 | |
| 59 | |
| 60 | //----------------------------------------------------------------------------- |
| 61 | // our private arrays: |
| 62 | //----------------------------------------------------------------------------- |
| 63 | |
| 64 | WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray); |
| 65 | WX_DEFINE_OBJARRAY(wxHtmlHistoryArray); |
| 66 | |
| 67 | WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList); |
| 68 | WX_DEFINE_LIST(wxHtmlProcessorList); |
| 69 | |
| 70 | //----------------------------------------------------------------------------- |
| 71 | // wxHtmlWindow |
| 72 | //----------------------------------------------------------------------------- |
| 73 | |
| 74 | |
| 75 | void wxHtmlWindow::Init() |
| 76 | { |
| 77 | m_tmpMouseMoved = FALSE; |
| 78 | m_tmpLastLink = NULL; |
| 79 | m_tmpLastCell = NULL; |
| 80 | m_tmpCanDrawLocks = 0; |
| 81 | m_FS = new wxFileSystem(); |
| 82 | m_RelatedStatusBar = -1; |
| 83 | m_RelatedFrame = NULL; |
| 84 | m_TitleFormat = wxT("%s"); |
| 85 | m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString; |
| 86 | m_Cell = NULL; |
| 87 | m_Parser = new wxHtmlWinParser(this); |
| 88 | m_Parser->SetFS(m_FS); |
| 89 | m_HistoryPos = -1; |
| 90 | m_HistoryOn = TRUE; |
| 91 | m_History = new wxHtmlHistoryArray; |
| 92 | m_Processors = NULL; |
| 93 | m_Style = 0; |
| 94 | SetBorders(10); |
| 95 | } |
| 96 | |
| 97 | bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id, |
| 98 | const wxPoint& pos, const wxSize& size, |
| 99 | long style, const wxString& name) |
| 100 | { |
| 101 | if (!wxScrolledWindow::Create(parent, id, pos, size, |
| 102 | style | wxVSCROLL | wxHSCROLL, name)) |
| 103 | return FALSE; |
| 104 | |
| 105 | m_Style = style; |
| 106 | SetPage(wxT("<html><body></body></html>")); |
| 107 | return TRUE; |
| 108 | } |
| 109 | |
| 110 | |
| 111 | wxHtmlWindow::~wxHtmlWindow() |
| 112 | { |
| 113 | HistoryClear(); |
| 114 | |
| 115 | if (m_Cell) delete m_Cell; |
| 116 | |
| 117 | delete m_Parser; |
| 118 | delete m_FS; |
| 119 | delete m_History; |
| 120 | delete m_Processors; |
| 121 | } |
| 122 | |
| 123 | |
| 124 | |
| 125 | void wxHtmlWindow::SetRelatedFrame(wxFrame* frame, const wxString& format) |
| 126 | { |
| 127 | m_RelatedFrame = frame; |
| 128 | m_TitleFormat = format; |
| 129 | } |
| 130 | |
| 131 | |
| 132 | |
| 133 | void wxHtmlWindow::SetRelatedStatusBar(int bar) |
| 134 | { |
| 135 | m_RelatedStatusBar = bar; |
| 136 | } |
| 137 | |
| 138 | |
| 139 | |
| 140 | void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes) |
| 141 | { |
| 142 | wxString op = m_OpenedPage; |
| 143 | |
| 144 | m_Parser->SetFonts(normal_face, fixed_face, sizes); |
| 145 | // fonts changed => contents invalid, so reload the page: |
| 146 | SetPage(wxT("<html><body></body></html>")); |
| 147 | if (!op.IsEmpty()) LoadPage(op); |
| 148 | } |
| 149 | |
| 150 | |
| 151 | |
| 152 | bool wxHtmlWindow::SetPage(const wxString& source) |
| 153 | { |
| 154 | wxString newsrc(source); |
| 155 | |
| 156 | // pass HTML through registered processors: |
| 157 | if (m_Processors || m_GlobalProcessors) |
| 158 | { |
| 159 | wxHtmlProcessorList::Node *nodeL, *nodeG; |
| 160 | int prL, prG; |
| 161 | |
| 162 | nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL; |
| 163 | nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL; |
| 164 | |
| 165 | // VS: there are two lists, global and local, both of them sorted by |
| 166 | // priority. Since we have to go through _both_ lists with |
| 167 | // decreasing priority, we "merge-sort" the lists on-line by |
| 168 | // processing that one of the two heads that has higher priority |
| 169 | // in every iteration |
| 170 | while (nodeL || nodeG) |
| 171 | { |
| 172 | prL = (nodeL) ? nodeL->GetData()->GetPriority() : -1; |
| 173 | prG = (nodeG) ? nodeG->GetData()->GetPriority() : -1; |
| 174 | if (prL > prG) |
| 175 | { |
| 176 | if (nodeL->GetData()->IsEnabled()) |
| 177 | newsrc = nodeL->GetData()->Process(newsrc); |
| 178 | nodeL = nodeL->GetNext(); |
| 179 | } |
| 180 | else // prL <= prG |
| 181 | { |
| 182 | if (nodeG->GetData()->IsEnabled()) |
| 183 | newsrc = nodeG->GetData()->Process(newsrc); |
| 184 | nodeG = nodeG->GetNext(); |
| 185 | } |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | // ...and run the parser on it: |
| 190 | wxClientDC *dc = new wxClientDC(this); |
| 191 | dc->SetMapMode(wxMM_TEXT); |
| 192 | SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF)); |
| 193 | m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString; |
| 194 | m_Parser->SetDC(dc); |
| 195 | if (m_Cell) |
| 196 | { |
| 197 | delete m_Cell; |
| 198 | m_Cell = NULL; |
| 199 | } |
| 200 | m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc); |
| 201 | delete dc; |
| 202 | m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS); |
| 203 | m_Cell->SetAlignHor(wxHTML_ALIGN_CENTER); |
| 204 | CreateLayout(); |
| 205 | if (m_tmpCanDrawLocks == 0) |
| 206 | Refresh(); |
| 207 | return TRUE; |
| 208 | } |
| 209 | |
| 210 | bool wxHtmlWindow::AppendToPage(const wxString& source) |
| 211 | { |
| 212 | return SetPage(*(GetParser()->GetSource()) + source); |
| 213 | } |
| 214 | |
| 215 | bool wxHtmlWindow::LoadPage(const wxString& location) |
| 216 | { |
| 217 | wxBusyCursor busyCursor; |
| 218 | |
| 219 | wxFSFile *f; |
| 220 | bool rt_val; |
| 221 | bool needs_refresh = FALSE; |
| 222 | |
| 223 | m_tmpCanDrawLocks++; |
| 224 | if (m_HistoryOn && (m_HistoryPos != -1)) |
| 225 | { |
| 226 | // store scroll position into history item: |
| 227 | int x, y; |
| 228 | GetViewStart(&x, &y); |
| 229 | (*m_History)[m_HistoryPos].SetPos(y); |
| 230 | } |
| 231 | |
| 232 | if (location[0] == wxT('#')) |
| 233 | { |
| 234 | // local anchor: |
| 235 | wxString anch = location.Mid(1) /*1 to end*/; |
| 236 | m_tmpCanDrawLocks--; |
| 237 | rt_val = ScrollToAnchor(anch); |
| 238 | m_tmpCanDrawLocks++; |
| 239 | } |
| 240 | else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage) |
| 241 | { |
| 242 | wxString anch = location.AfterFirst(wxT('#')); |
| 243 | m_tmpCanDrawLocks--; |
| 244 | rt_val = ScrollToAnchor(anch); |
| 245 | m_tmpCanDrawLocks++; |
| 246 | } |
| 247 | else if (location.Find(wxT('#')) != wxNOT_FOUND && |
| 248 | (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage) |
| 249 | { |
| 250 | wxString anch = location.AfterFirst(wxT('#')); |
| 251 | m_tmpCanDrawLocks--; |
| 252 | rt_val = ScrollToAnchor(anch); |
| 253 | m_tmpCanDrawLocks++; |
| 254 | } |
| 255 | |
| 256 | else |
| 257 | { |
| 258 | needs_refresh = TRUE; |
| 259 | // load&display it: |
| 260 | if (m_RelatedStatusBar != -1) |
| 261 | { |
| 262 | m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar); |
| 263 | Refresh(FALSE); |
| 264 | } |
| 265 | |
| 266 | f = m_FS->OpenFile(location); |
| 267 | |
| 268 | if (f == NULL) |
| 269 | { |
| 270 | wxLogError(_("Unable to open requested HTML document: %s"), location.c_str()); |
| 271 | m_tmpCanDrawLocks--; |
| 272 | return FALSE; |
| 273 | } |
| 274 | |
| 275 | else |
| 276 | { |
| 277 | wxNode *node; |
| 278 | wxString src = wxEmptyString; |
| 279 | |
| 280 | if (m_RelatedStatusBar != -1) |
| 281 | { |
| 282 | wxString msg = _("Loading : ") + location; |
| 283 | m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar); |
| 284 | Refresh(FALSE); |
| 285 | } |
| 286 | |
| 287 | node = m_Filters.GetFirst(); |
| 288 | while (node) |
| 289 | { |
| 290 | wxHtmlFilter *h = (wxHtmlFilter*) node->GetData(); |
| 291 | if (h->CanRead(*f)) |
| 292 | { |
| 293 | src = h->ReadFile(*f); |
| 294 | break; |
| 295 | } |
| 296 | node = node->GetNext(); |
| 297 | } |
| 298 | if (src == wxEmptyString) |
| 299 | { |
| 300 | if (m_DefaultFilter == NULL) m_DefaultFilter = GetDefaultFilter(); |
| 301 | src = m_DefaultFilter->ReadFile(*f); |
| 302 | } |
| 303 | |
| 304 | m_FS->ChangePathTo(f->GetLocation()); |
| 305 | rt_val = SetPage(src); |
| 306 | m_OpenedPage = f->GetLocation(); |
| 307 | if (f->GetAnchor() != wxEmptyString) |
| 308 | { |
| 309 | wxYield(); |
| 310 | ScrollToAnchor(f->GetAnchor()); |
| 311 | } |
| 312 | |
| 313 | delete f; |
| 314 | |
| 315 | if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar); |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | if (m_HistoryOn) // add this page to history there: |
| 320 | { |
| 321 | int c = m_History->GetCount() - (m_HistoryPos + 1); |
| 322 | |
| 323 | if (m_HistoryPos < 0 || |
| 324 | (*m_History)[m_HistoryPos].GetPage() != m_OpenedPage || |
| 325 | (*m_History)[m_HistoryPos].GetAnchor() != m_OpenedAnchor) |
| 326 | { |
| 327 | m_HistoryPos++; |
| 328 | for (int i = 0; i < c; i++) |
| 329 | m_History->RemoveAt(m_HistoryPos); |
| 330 | m_History->Add(new wxHtmlHistoryItem(m_OpenedPage, m_OpenedAnchor)); |
| 331 | } |
| 332 | } |
| 333 | |
| 334 | if (m_OpenedPageTitle == wxEmptyString) |
| 335 | OnSetTitle(wxFileNameFromPath(m_OpenedPage)); |
| 336 | |
| 337 | if (needs_refresh) |
| 338 | { |
| 339 | wxYield(); |
| 340 | m_tmpCanDrawLocks--; |
| 341 | Refresh(); |
| 342 | } |
| 343 | else |
| 344 | m_tmpCanDrawLocks--; |
| 345 | |
| 346 | return rt_val; |
| 347 | } |
| 348 | |
| 349 | |
| 350 | |
| 351 | bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor) |
| 352 | { |
| 353 | const wxHtmlCell *c = m_Cell->Find(wxHTML_COND_ISANCHOR, &anchor); |
| 354 | if (!c) |
| 355 | { |
| 356 | wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str()); |
| 357 | return FALSE; |
| 358 | } |
| 359 | else |
| 360 | { |
| 361 | int y; |
| 362 | |
| 363 | for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY(); |
| 364 | Scroll(-1, y / wxHTML_SCROLL_STEP); |
| 365 | m_OpenedAnchor = anchor; |
| 366 | return TRUE; |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | |
| 371 | void wxHtmlWindow::OnSetTitle(const wxString& title) |
| 372 | { |
| 373 | if (m_RelatedFrame) |
| 374 | { |
| 375 | wxString tit; |
| 376 | tit.Printf(m_TitleFormat, title.c_str()); |
| 377 | m_RelatedFrame->SetTitle(tit); |
| 378 | } |
| 379 | m_OpenedPageTitle = title; |
| 380 | } |
| 381 | |
| 382 | |
| 383 | |
| 384 | |
| 385 | |
| 386 | void wxHtmlWindow::CreateLayout() |
| 387 | { |
| 388 | int ClientWidth, ClientHeight; |
| 389 | |
| 390 | if (!m_Cell) return; |
| 391 | |
| 392 | if (m_Style & wxHW_SCROLLBAR_NEVER) |
| 393 | { |
| 394 | SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off |
| 395 | GetClientSize(&ClientWidth, &ClientHeight); |
| 396 | m_Cell->Layout(ClientWidth); |
| 397 | } |
| 398 | |
| 399 | else { |
| 400 | GetClientSize(&ClientWidth, &ClientHeight); |
| 401 | m_Cell->Layout(ClientWidth); |
| 402 | if (ClientHeight < m_Cell->GetHeight() + GetCharHeight()) |
| 403 | { |
| 404 | SetScrollbars( |
| 405 | wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP, |
| 406 | m_Cell->GetWidth() / wxHTML_SCROLL_STEP, |
| 407 | (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP |
| 408 | /*cheat: top-level frag is always container*/); |
| 409 | } |
| 410 | else /* we fit into window, no need for scrollbars */ |
| 411 | { |
| 412 | SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable... |
| 413 | GetClientSize(&ClientWidth, &ClientHeight); |
| 414 | m_Cell->Layout(ClientWidth); // ...and relayout |
| 415 | } |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | |
| 420 | |
| 421 | void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path) |
| 422 | { |
| 423 | wxString oldpath; |
| 424 | wxString tmp; |
| 425 | int p_fontsizes[7]; |
| 426 | wxString p_fff, p_ffn; |
| 427 | |
| 428 | if (path != wxEmptyString) |
| 429 | { |
| 430 | oldpath = cfg->GetPath(); |
| 431 | cfg->SetPath(path); |
| 432 | } |
| 433 | |
| 434 | m_Borders = cfg->Read(wxT("wxHtmlWindow/Borders"), m_Borders); |
| 435 | p_fff = cfg->Read(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed); |
| 436 | p_ffn = cfg->Read(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal); |
| 437 | for (int i = 0; i < 7; i++) |
| 438 | { |
| 439 | tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i); |
| 440 | p_fontsizes[i] = cfg->Read(tmp, m_Parser->m_FontsSizes[i]); |
| 441 | } |
| 442 | SetFonts(p_ffn, p_fff, p_fontsizes); |
| 443 | |
| 444 | if (path != wxEmptyString) |
| 445 | cfg->SetPath(oldpath); |
| 446 | } |
| 447 | |
| 448 | |
| 449 | |
| 450 | void wxHtmlWindow::WriteCustomization(wxConfigBase *cfg, wxString path) |
| 451 | { |
| 452 | wxString oldpath; |
| 453 | wxString tmp; |
| 454 | |
| 455 | if (path != wxEmptyString) |
| 456 | { |
| 457 | oldpath = cfg->GetPath(); |
| 458 | cfg->SetPath(path); |
| 459 | } |
| 460 | |
| 461 | cfg->Write(wxT("wxHtmlWindow/Borders"), (long) m_Borders); |
| 462 | cfg->Write(wxT("wxHtmlWindow/FontFaceFixed"), m_Parser->m_FontFaceFixed); |
| 463 | cfg->Write(wxT("wxHtmlWindow/FontFaceNormal"), m_Parser->m_FontFaceNormal); |
| 464 | for (int i = 0; i < 7; i++) |
| 465 | { |
| 466 | tmp.Printf(wxT("wxHtmlWindow/FontsSize%i"), i); |
| 467 | cfg->Write(tmp, (long) m_Parser->m_FontsSizes[i]); |
| 468 | } |
| 469 | |
| 470 | if (path != wxEmptyString) |
| 471 | cfg->SetPath(oldpath); |
| 472 | } |
| 473 | |
| 474 | |
| 475 | |
| 476 | bool wxHtmlWindow::HistoryBack() |
| 477 | { |
| 478 | wxString a, l; |
| 479 | |
| 480 | if (m_HistoryPos < 1) return FALSE; |
| 481 | |
| 482 | // store scroll position into history item: |
| 483 | int x, y; |
| 484 | GetViewStart(&x, &y); |
| 485 | (*m_History)[m_HistoryPos].SetPos(y); |
| 486 | |
| 487 | // go to previous position: |
| 488 | m_HistoryPos--; |
| 489 | |
| 490 | l = (*m_History)[m_HistoryPos].GetPage(); |
| 491 | a = (*m_History)[m_HistoryPos].GetAnchor(); |
| 492 | m_HistoryOn = FALSE; |
| 493 | m_tmpCanDrawLocks++; |
| 494 | if (a == wxEmptyString) LoadPage(l); |
| 495 | else LoadPage(l + wxT("#") + a); |
| 496 | m_HistoryOn = TRUE; |
| 497 | wxYield(); |
| 498 | m_tmpCanDrawLocks--; |
| 499 | Scroll(0, (*m_History)[m_HistoryPos].GetPos()); |
| 500 | Refresh(); |
| 501 | return TRUE; |
| 502 | } |
| 503 | |
| 504 | bool wxHtmlWindow::HistoryCanBack() |
| 505 | { |
| 506 | if (m_HistoryPos < 1) return FALSE; |
| 507 | return TRUE ; |
| 508 | } |
| 509 | |
| 510 | |
| 511 | bool wxHtmlWindow::HistoryForward() |
| 512 | { |
| 513 | wxString a, l; |
| 514 | |
| 515 | if (m_HistoryPos == -1) return FALSE; |
| 516 | if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE; |
| 517 | |
| 518 | m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage() |
| 519 | |
| 520 | m_HistoryPos++; |
| 521 | l = (*m_History)[m_HistoryPos].GetPage(); |
| 522 | a = (*m_History)[m_HistoryPos].GetAnchor(); |
| 523 | m_HistoryOn = FALSE; |
| 524 | m_tmpCanDrawLocks++; |
| 525 | if (a == wxEmptyString) LoadPage(l); |
| 526 | else LoadPage(l + wxT("#") + a); |
| 527 | m_HistoryOn = TRUE; |
| 528 | wxYield(); |
| 529 | m_tmpCanDrawLocks--; |
| 530 | Scroll(0, (*m_History)[m_HistoryPos].GetPos()); |
| 531 | Refresh(); |
| 532 | return TRUE; |
| 533 | } |
| 534 | |
| 535 | bool wxHtmlWindow::HistoryCanForward() |
| 536 | { |
| 537 | if (m_HistoryPos == -1) return FALSE; |
| 538 | if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE; |
| 539 | return TRUE ; |
| 540 | } |
| 541 | |
| 542 | |
| 543 | void wxHtmlWindow::HistoryClear() |
| 544 | { |
| 545 | m_History->Empty(); |
| 546 | m_HistoryPos = -1; |
| 547 | } |
| 548 | |
| 549 | void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor) |
| 550 | { |
| 551 | if (!m_Processors) |
| 552 | { |
| 553 | m_Processors = new wxHtmlProcessorList; |
| 554 | m_Processors->DeleteContents(TRUE); |
| 555 | } |
| 556 | wxHtmlProcessorList::Node *node; |
| 557 | |
| 558 | for (node = m_Processors->GetFirst(); node; node = node->GetNext()) |
| 559 | { |
| 560 | if (processor->GetPriority() > node->GetData()->GetPriority()) |
| 561 | { |
| 562 | m_Processors->Insert(node, processor); |
| 563 | return; |
| 564 | } |
| 565 | } |
| 566 | m_Processors->Append(processor); |
| 567 | } |
| 568 | |
| 569 | /*static */ void wxHtmlWindow::AddGlobalProcessor(wxHtmlProcessor *processor) |
| 570 | { |
| 571 | if (!m_GlobalProcessors) |
| 572 | { |
| 573 | m_GlobalProcessors = new wxHtmlProcessorList; |
| 574 | m_GlobalProcessors->DeleteContents(TRUE); |
| 575 | } |
| 576 | wxHtmlProcessorList::Node *node; |
| 577 | |
| 578 | for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext()) |
| 579 | { |
| 580 | if (processor->GetPriority() > node->GetData()->GetPriority()) |
| 581 | { |
| 582 | m_GlobalProcessors->Insert(node, processor); |
| 583 | return; |
| 584 | } |
| 585 | } |
| 586 | m_GlobalProcessors->Append(processor); |
| 587 | } |
| 588 | |
| 589 | |
| 590 | |
| 591 | wxList wxHtmlWindow::m_Filters; |
| 592 | wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL; |
| 593 | wxCursor *wxHtmlWindow::s_cur_hand = NULL; |
| 594 | wxCursor *wxHtmlWindow::s_cur_arrow = NULL; |
| 595 | wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL; |
| 596 | |
| 597 | void wxHtmlWindow::CleanUpStatics() |
| 598 | { |
| 599 | delete m_DefaultFilter; |
| 600 | m_DefaultFilter = NULL; |
| 601 | m_Filters.DeleteContents(TRUE); |
| 602 | m_Filters.Clear(); |
| 603 | delete m_GlobalProcessors; |
| 604 | m_GlobalProcessors = NULL; |
| 605 | delete s_cur_hand; |
| 606 | delete s_cur_arrow; |
| 607 | } |
| 608 | |
| 609 | |
| 610 | |
| 611 | void wxHtmlWindow::AddFilter(wxHtmlFilter *filter) |
| 612 | { |
| 613 | m_Filters.Append(filter); |
| 614 | } |
| 615 | |
| 616 | |
| 617 | |
| 618 | |
| 619 | void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link) |
| 620 | { |
| 621 | LoadPage(link.GetHref()); |
| 622 | } |
| 623 | |
| 624 | void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell, |
| 625 | wxCoord x, wxCoord y, |
| 626 | const wxMouseEvent& event) |
| 627 | { |
| 628 | wxCHECK_RET( cell, _T("can't be called with NULL cell") ); |
| 629 | |
| 630 | cell->OnMouseClick(this, x, y, event); |
| 631 | } |
| 632 | |
| 633 | void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell), |
| 634 | wxCoord WXUNUSED(x), wxCoord WXUNUSED(y)) |
| 635 | { |
| 636 | // do nothing here |
| 637 | } |
| 638 | |
| 639 | void wxHtmlWindow::OnDraw(wxDC& dc) |
| 640 | { |
| 641 | if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return; |
| 642 | |
| 643 | int x, y; |
| 644 | wxRect rect = GetUpdateRegion().GetBox(); |
| 645 | |
| 646 | dc.SetMapMode(wxMM_TEXT); |
| 647 | dc.SetBackgroundMode(wxTRANSPARENT); |
| 648 | GetViewStart(&x, &y); |
| 649 | |
| 650 | m_Cell->Draw(dc, 0, 0, |
| 651 | y * wxHTML_SCROLL_STEP + rect.GetTop(), |
| 652 | y * wxHTML_SCROLL_STEP + rect.GetBottom()); |
| 653 | } |
| 654 | |
| 655 | |
| 656 | |
| 657 | |
| 658 | void wxHtmlWindow::OnSize(wxSizeEvent& event) |
| 659 | { |
| 660 | wxScrolledWindow::OnSize(event); |
| 661 | CreateLayout(); |
| 662 | Refresh(); |
| 663 | } |
| 664 | |
| 665 | |
| 666 | void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event) |
| 667 | { |
| 668 | m_tmpMouseMoved = TRUE; |
| 669 | |
| 670 | if (event.ButtonDown()) |
| 671 | { |
| 672 | if ( m_Cell ) |
| 673 | { |
| 674 | int sx, sy; |
| 675 | GetViewStart(&sx, &sy); |
| 676 | sx *= wxHTML_SCROLL_STEP; |
| 677 | sy *= wxHTML_SCROLL_STEP; |
| 678 | |
| 679 | wxPoint pos = event.GetPosition(); |
| 680 | pos.x += sx; |
| 681 | pos.y += sy; |
| 682 | |
| 683 | wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y); |
| 684 | |
| 685 | // VZ: is it possible that we don't find anything at all? |
| 686 | // VS: yes. FindCellByPos returns terminal cell and |
| 687 | // containers may have empty borders |
| 688 | if ( cell ) |
| 689 | OnCellClicked(cell, pos.x, pos.y, event); |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | |
| 695 | |
| 696 | void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event)) |
| 697 | { |
| 698 | if (s_cur_hand == NULL) |
| 699 | { |
| 700 | s_cur_hand = new wxCursor(wxCURSOR_HAND); |
| 701 | s_cur_arrow = new wxCursor(wxCURSOR_ARROW); |
| 702 | } |
| 703 | |
| 704 | if (m_tmpMouseMoved && (m_Cell != NULL)) |
| 705 | { |
| 706 | int sx, sy; |
| 707 | GetViewStart(&sx, &sy); |
| 708 | sx *= wxHTML_SCROLL_STEP; |
| 709 | sy *= wxHTML_SCROLL_STEP; |
| 710 | |
| 711 | int x, y; |
| 712 | wxGetMousePosition(&x, &y); |
| 713 | ScreenToClient(&x, &y); |
| 714 | x += sx; |
| 715 | y += sy; |
| 716 | |
| 717 | wxHtmlCell *cell = m_Cell->FindCellByPos(x, y); |
| 718 | if ( cell != m_tmpLastCell ) |
| 719 | { |
| 720 | wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL; |
| 721 | |
| 722 | if (lnk != m_tmpLastLink) |
| 723 | { |
| 724 | if (lnk == NULL) |
| 725 | { |
| 726 | SetCursor(*s_cur_arrow); |
| 727 | if (m_RelatedStatusBar != -1) |
| 728 | m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar); |
| 729 | } |
| 730 | else |
| 731 | { |
| 732 | SetCursor(*s_cur_hand); |
| 733 | if (m_RelatedStatusBar != -1) |
| 734 | m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar); |
| 735 | } |
| 736 | m_tmpLastLink = lnk; |
| 737 | } |
| 738 | |
| 739 | m_tmpLastCell = cell; |
| 740 | } |
| 741 | else // mouse moved but stayed in the same cell |
| 742 | { |
| 743 | if ( cell ) |
| 744 | OnCellMouseHover(cell, x, y); |
| 745 | } |
| 746 | |
| 747 | m_tmpMouseMoved = FALSE; |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | |
| 752 | IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject) |
| 753 | |
| 754 | IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow) |
| 755 | |
| 756 | BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow) |
| 757 | EVT_SIZE(wxHtmlWindow::OnSize) |
| 758 | EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent) |
| 759 | EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent) |
| 760 | EVT_MOTION(wxHtmlWindow::OnMouseEvent) |
| 761 | EVT_IDLE(wxHtmlWindow::OnIdle) |
| 762 | END_EVENT_TABLE() |
| 763 | |
| 764 | |
| 765 | |
| 766 | |
| 767 | |
| 768 | // A module to allow initialization/cleanup |
| 769 | // without calling these functions from app.cpp or from |
| 770 | // the user's application. |
| 771 | |
| 772 | class wxHtmlWinModule: public wxModule |
| 773 | { |
| 774 | DECLARE_DYNAMIC_CLASS(wxHtmlWinModule) |
| 775 | public: |
| 776 | wxHtmlWinModule() : wxModule() {} |
| 777 | bool OnInit() { return TRUE; } |
| 778 | void OnExit() { wxHtmlWindow::CleanUpStatics(); } |
| 779 | }; |
| 780 | |
| 781 | IMPLEMENT_DYNAMIC_CLASS(wxHtmlWinModule, wxModule) |
| 782 | |
| 783 | |
| 784 | // This hack forces the linker to always link in m_* files |
| 785 | // (wxHTML doesn't work without handlers from these files) |
| 786 | #include "wx/html/forcelnk.h" |
| 787 | FORCE_WXHTML_MODULES() |
| 788 | |
| 789 | #endif |