src/html/htmlctrl/webkit/webkit.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        webkit.mm
   3 // Purpose:     wxWebKitCtrl - embeddable web kit control
   4 // Author:      Jethro Grassie / Kevin Ollivier
   5 // Modified by:
   6 // Created:     2004-4-16
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Jethro Grassie / Kevin Ollivier
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13     #pragma implementation "webkit.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18 #include "wx/splitter.h"
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/wx.h"
  22 #endif
  23
  24 #if wxUSE_WEBKIT
  25
  26 #ifdef __WXCOCOA__
  27 #include "wx/cocoa/autorelease.h"
  28 #else
  29 #include "wx/mac/uma.h"
  30 #include <Carbon/Carbon.h>
  31 #include <WebKit/WebKit.h>
  32 #include <WebKit/HIWebView.h>
  33 #include <WebKit/CarbonUtils.h>
  34 #endif
  35
  36 #include "wx/html/webkit.h"
  37
  38 #define DEBUG_WEBKIT_SIZING 0
  39
  40 // ----------------------------------------------------------------------------
  41 // macros
  42 // ----------------------------------------------------------------------------
  43
  44 IMPLEMENT_DYNAMIC_CLASS(wxWebKitCtrl, wxControl)
  45
  46 BEGIN_EVENT_TABLE(wxWebKitCtrl, wxControl)
  47     EVT_SIZE(wxWebKitCtrl::OnSize)
  48 END_EVENT_TABLE()
  49
  50 // ----------------------------------------------------------------------------
  51 // Carbon Events handlers
  52 // ----------------------------------------------------------------------------
  53
  54 // prototype for function in src/mac/carbon/toplevel.cpp
  55 void SetupMouseEvent( wxMouseEvent &wxevent , wxMacCarbonEvent &cEvent );
  56
  57 static const EventTypeSpec eventList[] =
  58 {
  59     //{ kEventClassControl, kEventControlTrack } ,
  60     { kEventClassMouse, kEventMouseUp },
  61     { kEventClassMouse, kEventMouseDown },
  62     { kEventClassMouse, kEventMouseMoved },
  63     { kEventClassMouse, kEventMouseDragged },
  64
  65     { kEventClassKeyboard, kEventRawKeyDown } ,
  66     { kEventClassKeyboard, kEventRawKeyRepeat } ,
  67     { kEventClassKeyboard, kEventRawKeyUp } ,
  68     { kEventClassKeyboard, kEventRawKeyModifiersChanged } ,
  69
  70     { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent } ,
  71     { kEventClassTextInput, kEventTextInputUpdateActiveInputArea } ,
  72
  73 #if DEBUG_WEBKIT_SIZING == 1
  74     { kEventClassControl, kEventControlBoundsChanged } ,
  75 #endif
  76 };
  77
  78 // mix this in from window.cpp
  79 pascal OSStatus wxMacUnicodeTextEventHandler( EventHandlerCallRef handler , EventRef event , void *data ) ;
  80
  81 // NOTE: This is mostly taken from KeyboardEventHandler in toplevel.cpp, but
  82 // that expects the data pointer is a top-level window, so I needed to change
  83 // that in this case. However, once 2.8 is out, we should factor out the common logic
  84 // among the two functions and merge them.
  85 static pascal OSStatus wxWebKitKeyEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
  86 {
  87     OSStatus result = eventNotHandledErr ;
  88     wxMacCarbonEvent cEvent( event ) ;
  89
  90     wxWebKitCtrl* thisWindow = (wxWebKitCtrl*) data ;
  91     wxWindow* focus = thisWindow ;
  92
  93     unsigned char charCode ;
  94     wxChar uniChar[2] ;
  95     uniChar[0] = 0;
  96     uniChar[1] = 0;
  97
  98     UInt32 keyCode ;
  99     UInt32 modifiers ;
 100     Point point ;
 101     UInt32 when = EventTimeToTicks( GetEventTime( event ) ) ;
 102
 103 #if wxUSE_UNICODE
 104     ByteCount dataSize = 0 ;
 105     if ( GetEventParameter( event, kEventParamKeyUnicodes, typeUnicodeText, NULL, 0 , &dataSize, NULL ) == noErr )
 106     {
 107         UniChar buf[2] ;
 108         int numChars = dataSize / sizeof( UniChar) + 1;
 109
 110         UniChar* charBuf = buf ;
 111
 112         if ( numChars * 2 > 4 )
 113             charBuf = new UniChar[ numChars ] ;
 114         GetEventParameter( event, kEventParamKeyUnicodes, typeUnicodeText, NULL, dataSize , NULL , charBuf ) ;
 115         charBuf[ numChars - 1 ] = 0;
 116
 117 #if SIZEOF_WCHAR_T == 2
 118         uniChar = charBuf[0] ;
 119 #else
 120         wxMBConvUTF16 converter ;
 121         converter.MB2WC( uniChar , (const char*)charBuf , 2 ) ;
 122 #endif
 123
 124         if ( numChars * 2 > 4 )
 125             delete[] charBuf ;
 126     }
 127 #endif
 128
 129     GetEventParameter( event, kEventParamKeyMacCharCodes, typeChar, NULL, sizeof(char), NULL, &charCode );
 130     GetEventParameter( event, kEventParamKeyCode, typeUInt32, NULL, sizeof(UInt32), NULL, &keyCode );
 131     GetEventParameter( event, kEventParamKeyModifiers, typeUInt32, NULL, sizeof(UInt32), NULL, &modifiers );
 132     GetEventParameter( event, kEventParamMouseLocation, typeQDPoint, NULL, sizeof(Point), NULL, &point );
 133
 134     UInt32 message = (keyCode << 8) + charCode;
 135     switch ( GetEventKind( event ) )
 136     {
 137         case kEventRawKeyRepeat :
 138         case kEventRawKeyDown :
 139             {
 140                 WXEVENTREF formerEvent = wxTheApp->MacGetCurrentEvent() ;
 141                 WXEVENTHANDLERCALLREF formerHandler = wxTheApp->MacGetCurrentEventHandlerCallRef() ;
 142                 wxTheApp->MacSetCurrentEvent( event , handler ) ;
 143                 if ( /* focus && */ wxTheApp->MacSendKeyDownEvent(
 144                     focus , message , modifiers , when , point.h , point.v , uniChar[0] ) )
 145                 {
 146                     result = noErr ;
 147                 }
 148                 wxTheApp->MacSetCurrentEvent( formerEvent , formerHandler ) ;
 149             }
 150             break ;
 151
 152         case kEventRawKeyUp :
 153             if ( /* focus && */ wxTheApp->MacSendKeyUpEvent(
 154                 focus , message , modifiers , when , point.h , point.v , uniChar[0] ) )
 155             {
 156                 result = noErr ;
 157             }
 158             break ;
 159
 160         case kEventRawKeyModifiersChanged :
 161             {
 162                 wxKeyEvent event(wxEVT_KEY_DOWN);
 163
 164                 event.m_shiftDown = modifiers & shiftKey;
 165                 event.m_controlDown = modifiers & controlKey;
 166                 event.m_altDown = modifiers & optionKey;
 167                 event.m_metaDown = modifiers & cmdKey;
 168                 event.m_x = point.h;
 169                 event.m_y = point.v;
 170
 171 #if wxUSE_UNICODE
 172                 event.m_uniChar = uniChar[0] ;
 173 #endif
 174
 175                 event.SetTimestamp(when);
 176                 event.SetEventObject(focus);
 177
 178                 if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & controlKey )
 179                 {
 180                     event.m_keyCode = WXK_CONTROL ;
 181                     event.SetEventType( ( modifiers & controlKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
 182                     focus->GetEventHandler()->ProcessEvent( event ) ;
 183                 }
 184                 if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & shiftKey )
 185                 {
 186                     event.m_keyCode = WXK_SHIFT ;
 187                     event.SetEventType( ( modifiers & shiftKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
 188                     focus->GetEventHandler()->ProcessEvent( event ) ;
 189                 }
 190                 if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & optionKey )
 191                 {
 192                     event.m_keyCode = WXK_ALT ;
 193                     event.SetEventType( ( modifiers & optionKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
 194                     focus->GetEventHandler()->ProcessEvent( event ) ;
 195                 }
 196                 if ( /* focus && */ (modifiers ^ wxApp::s_lastModifiers ) & cmdKey )
 197                 {
 198                     event.m_keyCode = WXK_COMMAND ;
 199                     event.SetEventType( ( modifiers & cmdKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
 200                     focus->GetEventHandler()->ProcessEvent( event ) ;
 201                 }
 202
 203                 wxApp::s_lastModifiers = modifiers ;
 204             }
 205             break ;
 206
 207         default:
 208             break;
 209     }
 210
 211     return result ;
 212 }
 213
 214 static pascal OSStatus wxWebKitCtrlEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
 215 {
 216     OSStatus result = eventNotHandledErr ;
 217
 218     wxMacCarbonEvent cEvent( event ) ;
 219
 220     ControlRef controlRef ;
 221     wxWebKitCtrl* thisWindow = (wxWebKitCtrl*) data ;
 222     wxNonOwnedWindow* tlw = NULL;
 223     if (thisWindow)
 224         tlw = thisWindow->MacGetTopLevelWindow();
 225
 226     cEvent.GetParameter( kEventParamDirectObject , &controlRef ) ;
 227
 228     wxWindow* currentMouseWindow = thisWindow ;
 229
 230     if ( wxApp::s_captureWindow )
 231         currentMouseWindow = wxApp::s_captureWindow;
 232
 233     switch ( GetEventClass( event ) )
 234     {
 235         case kEventClassKeyboard:
 236         {
 237             result = wxWebKitKeyEventHandler(handler, event, data);
 238             break;
 239         }
 240
 241         case kEventClassTextInput:
 242         {
 243             result = wxMacUnicodeTextEventHandler(handler, event, data);
 244             break;
 245         }
 246
 247         case kEventClassMouse:
 248         {
 249             switch ( GetEventKind( event ) )
 250             {
 251                 case kEventMouseDragged :
 252                 case kEventMouseMoved :
 253                 case kEventMouseDown :
 254                 case kEventMouseUp :
 255                 {
 256                     wxMouseEvent wxevent(wxEVT_LEFT_DOWN);
 257                     SetupMouseEvent( wxevent , cEvent ) ;
 258
 259                     currentMouseWindow->ScreenToClient( &wxevent.m_x , &wxevent.m_y ) ;
 260                     wxevent.SetEventObject( currentMouseWindow ) ;
 261                     wxevent.SetId( currentMouseWindow->GetId() ) ;
 262
 263                     if ( currentMouseWindow->GetEventHandler()->ProcessEvent(wxevent) )
 264                     {
 265                         result = noErr;
 266                     }
 267
 268                     break; // this should enable WebKit to fire mouse dragged and mouse up events...
 269                 }
 270                 default :
 271                     break ;
 272             }
 273         }
 274         default:
 275             break;
 276     }
 277
 278     result = CallNextEventHandler(handler, event);
 279     return result ;
 280 }
 281
 282 DEFINE_ONE_SHOT_HANDLER_GETTER( wxWebKitCtrlEventHandler )
 283
 284
 285 // ----------------------------------------------------------------------------
 286 // wxWebKit Events
 287 // ----------------------------------------------------------------------------
 288
 289 IMPLEMENT_DYNAMIC_CLASS( wxWebKitStateChangedEvent, wxCommandEvent )
 290
 291 DEFINE_EVENT_TYPE( wxEVT_WEBKIT_STATE_CHANGED )
 292
 293 wxWebKitStateChangedEvent::wxWebKitStateChangedEvent( wxWindow* win )
 294 {
 295     SetEventType( wxEVT_WEBKIT_STATE_CHANGED);
 296     SetEventObject( win );
 297     SetId(win->GetId());
 298 }
 299
 300 IMPLEMENT_DYNAMIC_CLASS( wxWebKitBeforeLoadEvent, wxCommandEvent )
 301
 302 DEFINE_EVENT_TYPE( wxEVT_WEBKIT_BEFORE_LOAD )
 303
 304 wxWebKitBeforeLoadEvent::wxWebKitBeforeLoadEvent( wxWindow* win )
 305 {
 306     m_cancelled = false;
 307     SetEventType( wxEVT_WEBKIT_BEFORE_LOAD);
 308     SetEventObject( win );
 309     SetId(win->GetId());
 310 }
 311
 312
 313 IMPLEMENT_DYNAMIC_CLASS( wxWebKitNewWindowEvent, wxCommandEvent )
 314
 315 DEFINE_EVENT_TYPE( wxEVT_WEBKIT_NEW_WINDOW )
 316
 317 wxWebKitNewWindowEvent::wxWebKitNewWindowEvent( wxWindow* win )
 318 {
 319     SetEventType( wxEVT_WEBKIT_NEW_WINDOW);
 320     SetEventObject( win );
 321     SetId(win->GetId());
 322 }
 323
 324
 325
 326 //---------------------------------------------------------
 327 // helper functions for NSString<->wxString conversion
 328 //---------------------------------------------------------
 329
 330 inline wxString wxStringWithNSString(NSString *nsstring)
 331 {
 332 #if wxUSE_UNICODE
 333     return wxString([nsstring UTF8String], wxConvUTF8);
 334 #else
 335     return wxString([nsstring lossyCString]);
 336 #endif // wxUSE_UNICODE
 337 }
 338
 339 inline NSString* wxNSStringWithWxString(const wxString &wxstring)
 340 {
 341 #if wxUSE_UNICODE
 342     return [NSString stringWithUTF8String: wxstring.mb_str(wxConvUTF8)];
 343 #else
 344     return [NSString stringWithCString: wxstring.c_str() length:wxstring.Len()];
 345 #endif // wxUSE_UNICODE
 346 }
 347
 348 inline int wxNavTypeFromWebNavType(int type){
 349     if (type == WebNavigationTypeLinkClicked)
 350         return wxWEBKIT_NAV_LINK_CLICKED;
 351
 352     if (type == WebNavigationTypeFormSubmitted)
 353         return wxWEBKIT_NAV_FORM_SUBMITTED;
 354
 355     if (type == WebNavigationTypeBackForward)
 356         return wxWEBKIT_NAV_BACK_NEXT;
 357
 358     if (type == WebNavigationTypeReload)
 359         return wxWEBKIT_NAV_RELOAD;
 360
 361     if (type == WebNavigationTypeFormResubmitted)
 362         return wxWEBKIT_NAV_FORM_RESUBMITTED;
 363
 364     return wxWEBKIT_NAV_OTHER;
 365 }
 366
 367 @interface MyFrameLoadMonitor : NSObject
 368 {
 369     wxWebKitCtrl* webKitWindow;
 370 }
 371
 372 - initWithWxWindow: (wxWebKitCtrl*)inWindow;
 373
 374 @end
 375
 376 @interface MyPolicyDelegate : NSObject
 377 {
 378     wxWebKitCtrl* webKitWindow;
 379 }
 380
 381 - initWithWxWindow: (wxWebKitCtrl*)inWindow;
 382
 383 @end
 384
 385 // ----------------------------------------------------------------------------
 386 // creation/destruction
 387 // ----------------------------------------------------------------------------
 388
 389 bool wxWebKitCtrl::Create(wxWindow *parent,
 390                                  wxWindowID winID,
 391                                  const wxString& strURL,
 392                                  const wxPoint& pos,
 393                                  const wxSize& size, long style,
 394                                  const wxValidator& validator,
 395                                  const wxString& name)
 396 {
 397
 398     m_currentURL = strURL;
 399     //m_pageTitle = _("Untitled Page");
 400
 401  //still needed for wxCocoa??
 402 /*
 403     int width, height;
 404     wxSize sizeInstance;
 405     if (size.x == wxDefaultCoord || size.y == wxDefaultCoord)
 406     {
 407         m_parent->GetClientSize(&width, &height);
 408         sizeInstance.x = width;
 409         sizeInstance.y = height;
 410     }
 411     else
 412     {
 413         sizeInstance.x = size.x;
 414         sizeInstance.y = size.y;
 415     }
 416 */
 417     // now create and attach WebKit view...
 418 #ifdef __WXCOCOA__
 419     wxControl::Create(parent, m_windowID, pos, sizeInstance, style , validator , name);
 420     SetSize(pos.x, pos.y, sizeInstance.x, sizeInstance.y);
 421
 422     wxTopLevelWindowCocoa *topWin = wxDynamicCast(this, wxTopLevelWindowCocoa);
 423     NSWindow* nsWin = topWin->GetNSWindow();
 424     NSRect rect;
 425     rect.origin.x = pos.x;
 426     rect.origin.y = pos.y;
 427     rect.size.width = sizeInstance.x;
 428     rect.size.height = sizeInstance.y;
 429     m_webView = (WebView*)[[WebView alloc] initWithFrame:rect frameName:@"webkitFrame" groupName:@"webkitGroup"];
 430     SetNSView(m_webView);
 431     [m_cocoaNSView release];
 432
 433     if(m_parent) m_parent->CocoaAddChild(this);
 434     SetInitialFrameRect(pos,sizeInstance);
 435 #else
 436     m_macIsUserPane = false;
 437     wxControl::Create(parent, winID, pos, size, style , validator , name);
 438     m_peer = new wxMacControl(this);
 439     WebInitForCarbon();
 440     HIWebViewCreate( m_peer->GetControlRefAddr() );
 441
 442     m_webView = (WebView*) HIWebViewGetWebView( m_peer->GetControlRef() );
 443
 444     MacPostControlCreate(pos, size);
 445     HIViewSetVisible( m_peer->GetControlRef(), true );
 446     [m_webView setHidden:false];
 447 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
 448     if ( UMAGetSystemVersion() >= 0x1030 )
 449         HIViewChangeFeatures( m_peer->GetControlRef() , kHIViewIsOpaque , 0 ) ;
 450 #endif
 451     InstallControlEventHandler( m_peer->GetControlRef() , GetwxWebKitCtrlEventHandlerUPP(),
 452         GetEventTypeCount(eventList), eventList, this,
 453         (EventHandlerRef *)&m_webKitCtrlEventHandler);
 454
 455 #endif
 456
 457     // Register event listener interfaces
 458     MyFrameLoadMonitor* myFrameLoadMonitor = [[MyFrameLoadMonitor alloc] initWithWxWindow: this];
 459     [m_webView setFrameLoadDelegate:myFrameLoadMonitor];
 460
 461     // this is used to veto page loads, etc.
 462     MyPolicyDelegate* myPolicyDelegate = [[MyPolicyDelegate alloc] initWithWxWindow: this];
 463     [m_webView setPolicyDelegate:myPolicyDelegate];
 464
 465     LoadURL(m_currentURL);
 466     return true;
 467 }
 468
 469 wxWebKitCtrl::~wxWebKitCtrl()
 470 {
 471
 472 }
 473
 474 // ----------------------------------------------------------------------------
 475 // public methods
 476 // ----------------------------------------------------------------------------
 477
 478 void wxWebKitCtrl::LoadURL(const wxString &url)
 479 {
 480     if( !m_webView )
 481         return;
 482
 483     [[m_webView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:wxNSStringWithWxString(url)]]];
 484
 485     m_currentURL = url;
 486 }
 487
 488 bool wxWebKitCtrl::CanGoBack(){
 489     if ( !m_webView )
 490         return false;
 491
 492     return [m_webView canGoBack];
 493 }
 494
 495 bool wxWebKitCtrl::CanGoForward(){
 496     if ( !m_webView )
 497         return false;
 498
 499     return [m_webView canGoForward];
 500 }
 501
 502 bool wxWebKitCtrl::GoBack(){
 503     if ( !m_webView )
 504         return false;
 505
 506     bool result = [(WebView*)m_webView goBack];
 507     return result;
 508 }
 509
 510 bool wxWebKitCtrl::GoForward(){
 511     if ( !m_webView )
 512         return false;
 513
 514     bool result = [(WebView*)m_webView goForward];
 515     return result;
 516 }
 517
 518 void wxWebKitCtrl::Reload(){
 519     if ( !m_webView )
 520         return;
 521
 522     [[m_webView mainFrame] reload];
 523 }
 524
 525 void wxWebKitCtrl::Stop(){
 526     if ( !m_webView )
 527         return;
 528
 529     [[m_webView mainFrame] stopLoading];
 530 }
 531
 532 bool wxWebKitCtrl::CanGetPageSource(){
 533     if ( !m_webView )
 534         return false;
 535
 536     WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
 537     return ( [[dataSource representation] canProvideDocumentSource] );
 538 }
 539
 540 wxString wxWebKitCtrl::GetPageSource(){
 541
 542     if (CanGetPageSource()){
 543         WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
 544         return wxStringWithNSString( [[dataSource representation] documentSource] );
 545     }
 546
 547     return wxEmptyString;
 548 }
 549
 550 wxString wxWebKitCtrl::GetSelection(){
 551     if ( !m_webView )
 552         return wxEmptyString;
 553
 554     NSString* selectedText = [[m_webView selectedDOMRange] toString];
 555     return wxStringWithNSString( selectedText );
 556 }
 557
 558 bool wxWebKitCtrl::CanIncreaseTextSize(){
 559     if ( !m_webView )
 560         return false;
 561
 562     if ([m_webView canMakeTextLarger])
 563         return true;
 564     else
 565         return false;
 566 }
 567
 568 void wxWebKitCtrl::IncreaseTextSize(){
 569     if ( !m_webView )
 570         return;
 571
 572     if (CanIncreaseTextSize())
 573         [m_webView makeTextLarger:(WebView*)m_webView];
 574 }
 575
 576 bool wxWebKitCtrl::CanDecreaseTextSize(){
 577     if ( !m_webView )
 578         return false;
 579
 580     if ([m_webView canMakeTextSmaller])
 581         return true;
 582     else
 583         return false;
 584 }
 585
 586 void wxWebKitCtrl::DecreaseTextSize(){
 587     if ( !m_webView )
 588         return;
 589
 590     if (CanDecreaseTextSize())
 591         [m_webView makeTextSmaller:(WebView*)m_webView];
 592 }
 593
 594 void wxWebKitCtrl::SetPageSource(const wxString& source, const wxString& baseUrl){
 595     if ( !m_webView )
 596         return;
 597
 598     [[m_webView mainFrame] loadHTMLString:(NSString*)wxNSStringWithWxString( source ) baseURL:[NSURL URLWithString:wxNSStringWithWxString( baseUrl )]];
 599
 600 }
 601
 602 void wxWebKitCtrl::Print(bool showPrompt){
 603     if ( !m_webView )
 604         return;
 605
 606     id view = [[[m_webView mainFrame] frameView] documentView];
 607     NSPrintOperation *op = [NSPrintOperation printOperationWithView:view printInfo: [NSPrintInfo sharedPrintInfo]];
 608     if (showPrompt){
 609         [op setShowsPrintPanel: showPrompt];
 610         // in my tests, the progress bar always freezes and it stops the whole print operation.
 611         // do not turn this to true unless there is a workaround for the bug.
 612         [op setShowsProgressPanel: false];
 613     }
 614     // Print it.
 615     [op runOperation];
 616 }
 617
 618 void wxWebKitCtrl::MakeEditable(bool enable){
 619     if ( !m_webView )
 620         return;
 621
 622     [m_webView setEditable:enable ];
 623 }
 624
 625 bool wxWebKitCtrl::IsEditable(){
 626     if ( !m_webView )
 627         return false;
 628
 629     return [m_webView isEditable];
 630 }
 631
 632 int wxWebKitCtrl::GetScrollPos(){
 633     id result = [[m_webView windowScriptObject] evaluateWebScript:@"document.body.scrollTop"];
 634     return [result intValue];
 635 }
 636
 637 void wxWebKitCtrl::SetScrollPos(int pos){
 638     if ( !m_webView )
 639         return;
 640
 641     wxString javascript;
 642     javascript.Printf(wxT("document.body.scrollTop = %d;"), pos);
 643     [[m_webView windowScriptObject] evaluateWebScript:(NSString*)wxNSStringWithWxString( javascript )];
 644 }
 645
 646 wxString wxWebKitCtrl::RunScript(const wxString& javascript){
 647     if ( !m_webView )
 648         return wxEmptyString;
 649
 650     id result = [[m_webView windowScriptObject] evaluateWebScript:(NSString*)wxNSStringWithWxString( javascript )];
 651
 652     NSString* resultAsString;
 653     wxString resultAsWxString = wxEmptyString;
 654     NSString* className = NSStringFromClass([result class]);
 655     if ([className isEqualToString:@"NSCFNumber"])
 656         resultAsString = [NSString stringWithFormat:@"%@", result];
 657     else if ([className isEqualToString:@"NSCFString"])
 658         resultAsString = result;
 659     else if ([className isEqualToString:@"NSCFBoolean"]){
 660         if ([result boolValue])
 661             resultAsString = @"true";
 662         else
 663             resultAsString = @"false";
 664     }
 665     else if ([className isEqualToString:@"WebScriptObject"])
 666         resultAsString = [result stringRepresentation];
 667     else
 668         fprintf(stderr, "wxWebKitCtrl::RunScript - Unexpected return type: %s!\n", [className UTF8String]);
 669
 670     resultAsWxString = wxStringWithNSString( resultAsString );
 671     return resultAsWxString;
 672 }
 673
 674 void wxWebKitCtrl::OnSize(wxSizeEvent &event){
 675     // This is a nasty hack because WebKit seems to lose its position when it is embedded
 676     // in a control that is not itself the content view for a TLW.
 677     // I put it in OnSize because these calcs are not perfect, and in fact are basically
 678     // guesses based on reverse engineering, so it's best to give people the option of
 679     // overriding OnSize with their own calcs if need be.
 680     // I also left some test debugging print statements as a convenience if a(nother)
 681     // problem crops up.
 682
 683     wxWindow* tlw = MacGetTopLevelWindow();
 684
 685     NSRect frame = [m_webView frame];
 686     NSRect bounds = [m_webView bounds];
 687
 688 #if DEBUG_WEBKIT_SIZING
 689     fprintf(stderr,"Carbon window x=%d, y=%d, width=%d, height=%d\n", GetPosition().x, GetPosition().y, GetSize().x, GetSize().y);
 690     fprintf(stderr, "Cocoa window frame x=%G, y=%G, width=%G, height=%G\n", frame.origin.x, frame.origin.y, frame.size.width, frame.size.height);
 691     fprintf(stderr, "Cocoa window bounds x=%G, y=%G, width=%G, height=%G\n", bounds.origin.x, bounds.origin.y, bounds.size.width, bounds.size.height);
 692 #endif
 693
 694     // This must be the case that Apple tested with, because well, in this one case
 695     // we don't need to do anything! It just works. ;)
 696     if (GetParent() == tlw){
 697         return;
 698     }
 699
 700     // since we no longer use parent coordinates, we always want 0,0.
 701     int x = 0;
 702     int y = 0;
 703
 704     HIRect rect;
 705     rect.origin.x = x;
 706     rect.origin.y = y;
 707
 708 #if DEBUG_WEBKIT_SIZING
 709     printf("Before conversion, origin is: x = %d, y = %d\n", x, y);
 710 #endif
 711
 712     // NB: In most cases, when calling HIViewConvertRect, what people want is to use GetRootControl(),
 713     // and this tripped me up at first. But in fact, what we want is the root view, because we need to
 714     // make the y origin relative to the very top of the window, not its contents, since we later flip
 715     // the y coordinate for Cocoa.
 716     HIViewConvertRect (&rect, m_peer->GetControlRef(),
 717                                 HIViewGetRoot( (WindowRef) MacGetTopLevelWindowRef() ) );
 718
 719     x = (int)rect.origin.x;
 720     y = (int)rect.origin.y;
 721
 722 #if DEBUG_WEBKIT_SIZING
 723     printf("Moving Cocoa frame origin to: x = %d, y = %d\n", x, y);
 724 #endif
 725
 726     if (tlw){
 727         //flip the y coordinate to convert to Cocoa coordinates
 728         y = tlw->GetSize().y - ((GetSize().y) + y);
 729     }
 730
 731 #if DEBUG_WEBKIT_SIZING
 732     printf("y = %d after flipping value\n", y);
 733 #endif
 734
 735     frame.origin.x = x;
 736     frame.origin.y = y;
 737     [m_webView setFrame:frame];
 738
 739     if (IsShown())
 740         [(WebView*)m_webView display];
 741     event.Skip();
 742 }
 743
 744 void wxWebKitCtrl::MacVisibilityChanged(){
 745     bool isHidden = !IsControlVisible( m_peer->GetControlRef());
 746     if (!isHidden)
 747         [(WebView*)m_webView display];
 748
 749     [m_webView setHidden:isHidden];
 750 }
 751
 752 //------------------------------------------------------------
 753 // Listener interfaces
 754 //------------------------------------------------------------
 755
 756 // NB: I'm still tracking this down, but it appears the Cocoa window
 757 // still has these events fired on it while the Carbon control is being
 758 // destroyed. Therefore, we must be careful to check both the existence
 759 // of the Carbon control and the event handler before firing events.
 760
 761 @implementation MyFrameLoadMonitor
 762
 763 - initWithWxWindow: (wxWebKitCtrl*)inWindow
 764 {
 765     [super init];
 766     webKitWindow = inWindow;    // non retained
 767     return self;
 768 }
 769
 770 - (void)webView:(WebView *)sender didStartProvisionalLoadForFrame:(WebFrame *)frame
 771 {
 772     if (webKitWindow && frame == [sender mainFrame]){
 773         NSString *url = [[[[frame provisionalDataSource] request] URL] absoluteString];
 774         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 775         thisEvent.SetState(wxWEBKIT_STATE_NEGOTIATING);
 776         thisEvent.SetURL( wxStringWithNSString( url ) );
 777         if (webKitWindow->GetEventHandler())
 778             webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 779     }
 780 }
 781
 782 - (void)webView:(WebView *)sender didCommitLoadForFrame:(WebFrame *)frame
 783 {
 784     if (webKitWindow && frame == [sender mainFrame]){
 785         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 786         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 787         thisEvent.SetState(wxWEBKIT_STATE_TRANSFERRING);
 788         thisEvent.SetURL( wxStringWithNSString( url ) );
 789         if (webKitWindow->GetEventHandler())
 790             webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 791     }
 792 }
 793
 794 - (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
 795 {
 796     if (webKitWindow && frame == [sender mainFrame]){
 797         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 798         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 799         thisEvent.SetState(wxWEBKIT_STATE_STOP);
 800         thisEvent.SetURL( wxStringWithNSString( url ) );
 801         if (webKitWindow->GetEventHandler())
 802             webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 803     }
 804 }
 805
 806 - (void)webView:(WebView *)sender didFailLoadWithError:(NSError*) error forFrame:(WebFrame *)frame
 807 {
 808     wxUnusedVar(error);
 809
 810     if (webKitWindow && frame == [sender mainFrame]){
 811         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 812         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 813         thisEvent.SetState(wxWEBKIT_STATE_FAILED);
 814         thisEvent.SetURL( wxStringWithNSString( url ) );
 815         if (webKitWindow->GetEventHandler())
 816             webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 817     }
 818 }
 819
 820 - (void)webView:(WebView *)sender didFailProvisionalLoadWithError:(NSError*) error forFrame:(WebFrame *)frame
 821 {
 822     wxUnusedVar(error);
 823
 824     if (webKitWindow && frame == [sender mainFrame]){
 825         NSString *url = [[[[frame provisionalDataSource] request] URL] absoluteString];
 826         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 827         thisEvent.SetState(wxWEBKIT_STATE_FAILED);
 828         thisEvent.SetURL( wxStringWithNSString( url ) );
 829         if (webKitWindow->GetEventHandler())
 830             webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 831     }
 832 }
 833
 834 - (void)webView:(WebView *)sender didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame
 835 {
 836     if (webKitWindow && frame == [sender mainFrame]){
 837         webKitWindow->SetPageTitle(wxStringWithNSString( title ));
 838     }
 839 }
 840 @end
 841
 842 @implementation MyPolicyDelegate
 843
 844 - initWithWxWindow: (wxWebKitCtrl*)inWindow
 845 {
 846     [super init];
 847     webKitWindow = inWindow;    // non retained
 848     return self;
 849 }
 850
 851 - (void)webView:(WebView *)sender decidePolicyForNavigationAction:(NSDictionary *)actionInformation request:(NSURLRequest *)request frame:(WebFrame *)frame decisionListener:(id<WebPolicyDecisionListener>)listener
 852 {
 853     wxUnusedVar(sender);
 854     wxUnusedVar(frame);
 855
 856     wxWebKitBeforeLoadEvent thisEvent(webKitWindow);
 857
 858     // Get the navigation type.
 859     NSNumber *n = [actionInformation objectForKey:WebActionNavigationTypeKey];
 860     int actionType = [n intValue];
 861     thisEvent.SetNavigationType( wxNavTypeFromWebNavType(actionType) );
 862
 863     NSString *url = [[request URL] absoluteString];
 864     thisEvent.SetURL( wxStringWithNSString( url ) );
 865
 866     if (webKitWindow && webKitWindow->GetEventHandler())
 867         webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
 868
 869     if (thisEvent.IsCancelled())
 870         [listener ignore];
 871     else
 872         [listener use];
 873 }
 874
 875 - (void)webView:(WebView *)sender decidePolicyForNewWindowAction:(NSDictionary *)actionInformation request:(NSURLRequest *)request newFrameName:(NSString *)frameName decisionListener:(id < WebPolicyDecisionListener >)listener
 876 {
 877     wxWebKitNewWindowEvent thisEvent(webKitWindow);
 878
 879     NSString *url = [[request URL] absoluteString];
 880     thisEvent.SetURL( wxStringWithNSString( url ) );
 881     thisEvent.SetTargetName( wxStringWithNSString( frameName ) );
 882
 883     if (webKitWindow && webKitWindow->GetEventHandler())
 884         webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
 885
 886     [listener use];
 887 }
 888 @end
 889
 890 #endif //wxUSE_WEBKIT