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
  19 #ifndef WX_PRECOMP
  20     #include "wx/wx.h"
  21 #endif
  22
  23 #if wxUSE_WEBKIT
  24
  25 #ifdef __WXCOCOA__
  26 #include "wx/cocoa/autorelease.h"
  27 #else
  28 #include "wx/mac/uma.h"
  29 #include <Carbon/Carbon.h>
  30 #include <WebKit/HIWebView.h>
  31 #include <WebKit/CarbonUtils.h>
  32 #endif
  33
  34 #include "wx/html/webkit.h"
  35 #include "wx/notebook.h"
  36
  37
  38 // ----------------------------------------------------------------------------
  39 // macros
  40 // ----------------------------------------------------------------------------
  41
  42 #if !USE_SHARED_LIBRARY
  43 IMPLEMENT_DYNAMIC_CLASS(wxWebKitCtrl, wxControl)
  44 #endif
  45
  46 BEGIN_EVENT_TABLE(wxWebKitCtrl, wxControl)
  47     EVT_SIZE(wxWebKitCtrl::OnSize)
  48 END_EVENT_TABLE()
  49
  50 // ----------------------------------------------------------------------------
  51 // wxWebKit Events
  52 // ----------------------------------------------------------------------------
  53
  54 IMPLEMENT_DYNAMIC_CLASS( wxWebKitStateChangedEvent, wxCommandEvent )
  55
  56 DEFINE_EVENT_TYPE( wxEVT_WEBKIT_STATE_CHANGED )
  57
  58 wxWebKitStateChangedEvent::wxWebKitStateChangedEvent( wxWindow* win )
  59 {
  60     SetEventType( wxEVT_WEBKIT_STATE_CHANGED);
  61     SetEventObject( win );
  62     SetId(win->GetId());
  63 }
  64
  65 //---------------------------------------------------------
  66 // helper functions for NSString<->wxString conversion
  67 //---------------------------------------------------------
  68
  69 inline wxString wxStringWithNSString(NSString *nsstring)
  70 {
  71 #if wxUSE_UNICODE
  72     return wxString([nsstring UTF8String], wxConvUTF8);
  73 #else
  74     return wxString([nsstring lossyCString]);
  75 #endif // wxUSE_UNICODE
  76 }
  77
  78 inline NSString* wxNSStringWithWxString(const wxString &wxstring)
  79 {
  80 #if wxUSE_UNICODE
  81     return [NSString stringWithUTF8String: wxstring.mb_str(wxConvUTF8)];
  82 #else
  83     return [NSString stringWithCString: wxstring.c_str() length:wxstring.Len()];
  84 #endif // wxUSE_UNICODE
  85 }
  86
  87 @interface MyFrameLoadMonitor : NSObject
  88 {
  89     wxWindow* webKitWindow;
  90 }
  91
  92 - initWithWxWindow: (wxWindow*)inWindow;
  93
  94 @end
  95
  96 // ----------------------------------------------------------------------------
  97 // creation/destruction
  98 // ----------------------------------------------------------------------------
  99
 100 bool wxWebKitCtrl::Create(wxWindow *parent,
 101                                  wxWindowID winID,
 102                                  const wxString& strURL,
 103                                  const wxPoint& pos,
 104                                  const wxSize& size, long style,
 105                                  const wxValidator& validator,
 106                                  const wxString& name)
 107 {
 108
 109     m_currentURL = strURL;
 110     //m_pageTitle = _("Untitled Page");
 111
 112  //still needed for wxCocoa??
 113 /*
 114     int width, height;
 115     wxSize sizeInstance;
 116     if (size.x == wxDefaultCoord || size.y == wxDefaultCoord)
 117     {
 118         m_parent->GetClientSize(&width, &height);
 119         sizeInstance.x = width;
 120         sizeInstance.y = height;
 121     }
 122     else
 123     {
 124         sizeInstance.x = size.x;
 125         sizeInstance.y = size.y;
 126     }
 127 */
 128     // now create and attach WebKit view...
 129 #ifdef __WXCOCOA__
 130     wxControl::Create(parent, m_windowID, pos, sizeInstance, style , validator , name);
 131     SetSize(pos.x, pos.y, sizeInstance.x, sizeInstance.y);
 132
 133     wxTopLevelWindowCocoa *topWin = wxDynamicCast(this, wxTopLevelWindowCocoa);
 134     NSWindow* nsWin = topWin->GetNSWindow();
 135     NSRect rect;
 136     rect.origin.x = pos.x;
 137     rect.origin.y = pos.y;
 138     rect.size.width = sizeInstance.x;
 139     rect.size.height = sizeInstance.y;
 140     m_webView = (WebView*)[[WebView alloc] initWithFrame:rect frameName:@"webkitFrame" groupName:@"webkitGroup"];
 141     SetNSView(m_webView);
 142     [m_cocoaNSView release];
 143
 144     if(m_parent) m_parent->CocoaAddChild(this);
 145     SetInitialFrameRect(pos,sizeInstance);
 146 #else
 147     m_macIsUserPane = false;
 148     m_peer = new wxMacControl();
 149     wxControl::Create(parent, m_windowID, pos, size, style , validator , name);
 150     WebInitForCarbon();
 151     HIWebViewCreate( m_peer->GetControlRefAddr() );
 152
 153     m_webView = (WebView*) HIWebViewGetWebView( m_peer->GetControlRef() );
 154     MacPostControlCreate(pos, size);
 155     HIViewSetVisible( m_peer->GetControlRef(), true );
 156     [m_webView setHidden:false];
 157 #endif
 158
 159     // Register event listener interfaces
 160     MyFrameLoadMonitor* myFrameLoadMonitor = [[MyFrameLoadMonitor alloc] initWithWxWindow: (wxWindow*)this];
 161     [m_webView setFrameLoadDelegate:myFrameLoadMonitor];
 162
 163     LoadURL(m_currentURL);
 164     return true;
 165 }
 166
 167 wxWebKitCtrl::~wxWebKitCtrl()
 168 {
 169
 170 }
 171
 172 // ----------------------------------------------------------------------------
 173 // public methods
 174 // ----------------------------------------------------------------------------
 175
 176 void wxWebKitCtrl::LoadURL(const wxString &url)
 177 {
 178     if( !m_webView )
 179         return;
 180
 181     [[m_webView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:wxNSStringWithWxString(url)]]];
 182
 183     m_currentURL = url;
 184 }
 185
 186 bool wxWebKitCtrl::CanGoBack(){
 187     if ( !m_webView )
 188         return false;
 189
 190     return [m_webView canGoBack];
 191 }
 192
 193 bool wxWebKitCtrl::CanGoForward(){
 194     if ( !m_webView )
 195         return false;
 196
 197     return [m_webView canGoForward];
 198 }
 199
 200 bool wxWebKitCtrl::GoBack(){
 201     if ( !m_webView )
 202         return false;
 203
 204     bool result = [(WebView*)m_webView goBack];
 205     return result;
 206 }
 207
 208 bool wxWebKitCtrl::GoForward(){
 209     if ( !m_webView )
 210         return false;
 211
 212     bool result = [(WebView*)m_webView goForward];
 213     return result;
 214 }
 215
 216 void wxWebKitCtrl::Reload(){
 217     if ( !m_webView )
 218         return;
 219
 220     [[m_webView mainFrame] reload];
 221 }
 222
 223 void wxWebKitCtrl::Stop(){
 224     if ( !m_webView )
 225         return;
 226
 227     [[m_webView mainFrame] stopLoading];
 228 }
 229
 230 bool wxWebKitCtrl::CanGetPageSource(){
 231     if ( !m_webView )
 232         return false;
 233
 234     WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
 235     return ( [[dataSource representation] canProvideDocumentSource] );
 236 }
 237
 238 wxString wxWebKitCtrl::GetPageSource(){
 239
 240     if (CanGetPageSource()){
 241         WebDataSource* dataSource = [[m_webView mainFrame] dataSource];
 242         return wxStringWithNSString( [[dataSource representation] documentSource] );
 243     }
 244
 245     return wxEmptyString;
 246 }
 247
 248 void wxWebKitCtrl::SetPageSource(wxString& source, const wxString& baseUrl){
 249     if ( !m_webView )
 250         return;
 251
 252     if (CanGetPageSource()){
 253         [[m_webView mainFrame] loadHTMLString:(NSString*)wxNSStringWithWxString( source ) baseURL:[NSURL URLWithString:wxNSStringWithWxString( baseUrl )]];
 254     }
 255
 256 }
 257
 258 void wxWebKitCtrl::OnSize(wxSizeEvent &event){
 259     // This is a nasty hack because WebKit seems to lose its position when it is embedded
 260     // in a control that is not itself the content view for a TLW.
 261
 262     wxWindow* parent = GetParent();
 263     bool isParentTopLevel = true;
 264     if (!parent->IsTopLevel())
 265         isParentTopLevel = false;
 266
 267     int x = GetPosition().x;
 268     // we must take into account the title bar size as well, which is 26 pixels
 269     int y = GetPosition().y + 26;
 270
 271     NSRect bounds = [m_webView frame];
 272     wxWindow* tlw = NULL;
 273
 274     while(parent != NULL)
 275     {
 276         if (parent->IsTopLevel())
 277             tlw = parent;
 278
 279         x += parent->GetPosition().x;
 280         y += parent->GetPosition().y;
 281
 282         if ( parent->IsKindOf( CLASSINFO( wxNotebook ) )  ){
 283             //manually account for the size the tabs take up
 284             y += 14;
 285         }
 286
 287         //if ( parent->GetClassInfo()->GetClassName() == wxT("wxSplitterWindow") ){
 288         //    x += 3;
 289         //}
 290
 291         parent = parent->GetParent();
 292     }
 293
 294     if (!isParentTopLevel){
 295         if (tlw){
 296             //x = tlw->GetSize().x - (GetSize().x + x);
 297             y = tlw->GetSize().y - (GetSize().y + y);
 298         }
 299         NSRect bounds = [m_webView frame];
 300         bounds.origin.x += x;
 301         bounds.origin.y += y;
 302         //leaving debug checks in until I know it works everywhere ;-)
 303         //printf("Added to bounds x=%d, y=%d\n", x, y);
 304         [m_webView setFrame:bounds];
 305     }
 306
 307     //printf("Carbon position x=%d, y=%d\n", GetPosition().x, GetPosition().y);
 308     if (IsShown())
 309         [m_webView display];
 310     event.Skip();
 311 }
 312
 313 void wxWebKitCtrl::MacVisibilityChanged(){
 314     bool isHidden = !IsControlVisible( m_peer->GetControlRef());
 315     if (!isHidden)
 316         [m_webView display];
 317
 318     [m_webView setHidden:isHidden];
 319 }
 320
 321 //------------------------------------------------------------
 322 // Listener interfaces
 323 //------------------------------------------------------------
 324
 325 @implementation MyFrameLoadMonitor
 326
 327 - initWithWxWindow: (wxWindow*)inWindow
 328 {
 329     [super init];
 330     webKitWindow = inWindow;    // non retained
 331     return self;
 332 }
 333
 334 - (void)webView:(WebView *)sender didStartProvisionalLoadForFrame:(WebFrame *)frame
 335 {
 336     if (frame == [sender mainFrame]){
 337         NSString *url = [[[[frame provisionalDataSource] request] URL] absoluteString];
 338         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 339         thisEvent.SetState(wxWEBKIT_STATE_NEGOTIATING);
 340         thisEvent.SetURL( wxStringWithNSString( url ) );
 341         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 342     }
 343 }
 344
 345 - (void)webView:(WebView *)sender didCommitLoadForFrame:(WebFrame *)frame
 346 {
 347     if (frame == [sender mainFrame]){
 348         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 349         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 350         thisEvent.SetState(wxWEBKIT_STATE_TRANSFERRING);
 351         thisEvent.SetURL( wxStringWithNSString( url ) );
 352         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 353     }
 354 }
 355
 356 - (void)webView:(WebView *)sender didFinishLoadForFrame:(WebFrame *)frame
 357 {
 358     if (frame == [sender mainFrame]){
 359         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 360         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 361         thisEvent.SetState(wxWEBKIT_STATE_STOP);
 362         thisEvent.SetURL( wxStringWithNSString( url ) );
 363         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 364     }
 365 }
 366
 367 - (void)webView:(WebView *)sender didFailLoadWithError:(NSError*) error forFrame:(WebFrame *)frame
 368 {
 369     if (frame == [sender mainFrame]){
 370         NSString *url = [[[[frame dataSource] request] URL] absoluteString];
 371         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 372         thisEvent.SetState(wxWEBKIT_STATE_FAILED);
 373         thisEvent.SetURL( wxStringWithNSString( url ) );
 374         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 375     }
 376 }
 377
 378 - (void)webView:(WebView *)sender didFailProvisionalLoadWithError:(NSError*) error forFrame:(WebFrame *)frame
 379 {
 380     if (frame == [sender mainFrame]){
 381         NSString *url = [[[[frame provisionalDataSource] request] URL] absoluteString];
 382         wxWebKitStateChangedEvent thisEvent(webKitWindow);
 383         thisEvent.SetState(wxWEBKIT_STATE_FAILED);
 384         thisEvent.SetURL( wxStringWithNSString( url ) );
 385         webKitWindow->GetEventHandler()->ProcessEvent( thisEvent );
 386     }
 387 }
 388
 389 - (void)webView:(WebView *)sender didReceiveTitle:(NSString *)title forFrame:(WebFrame *)frame
 390 {
 391     if (frame == [sender mainFrame]){
 392         webKitWindow->SetTitle(wxStringWithNSString( title ));
 393     }
 394 }
 395 @end
 396
 397 #endif //wxUSE_WEBKIT