samples/html/htmlctrl/htmlctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        htmlctrl.cpp
   3 // Purpose:     HtmlCtrl sample
   4 // Author:      Julian Smart / Kevin Ollivier
   5 // Modified by:
   6 // Created:     04/16/2004
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart / Kevin Ollivier
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // for all others, include the necessary headers (this file is usually all you
  28 // need because it includes almost all "standard" wxWindows headers)
  29 #ifndef WX_PRECOMP
  30     #include "wx/wx.h"
  31 #endif
  32
  33 #include "wx/html/webkit.h"
  34
  35 // ----------------------------------------------------------------------------
  36 // resources
  37 // ----------------------------------------------------------------------------
  38
  39 // the application icon (under Windows and OS/2 it is in resources and even
  40 // though we could still include the XPM here it would be unused)
  41 #if !defined(__WXMSW__) && !defined(__WXPM__)
  42     #include "../../sample.xpm"
  43 #endif
  44
  45 enum {
  46     ID_BACK = wxID_HIGHEST + 1,
  47     ID_NEXT = wxID_HIGHEST + 2,
  48     ID_RELOAD = wxID_HIGHEST + 3,
  49     ID_URLLIST = wxID_HIGHEST + 4,
  50     ID_STOP = wxID_HIGHEST + 5,
  51     ID_WEBKIT = wxID_HIGHEST + 6,
  52     ID_VIEW_SOURCE = wxID_HIGHEST + 7,
  53     ID_OPEN = wxID_HIGHEST + 8,
  54     ID_SAVE = wxID_HIGHEST + 9,
  55     ID_SET_SOURCE = wxID_HIGHEST + 10
  56     };
  57
  58 // ----------------------------------------------------------------------------
  59 // private classes
  60 // ----------------------------------------------------------------------------
  61
  62 // Define a new application type, each program should derive a class from wxApp
  63 class MyApp : public wxApp
  64 {
  65 public:
  66     // override base class virtuals
  67     // ----------------------------
  68
  69     // this one is called on application startup and is a good place for the app
  70     // initialization (doing it here and not in the ctor allows to have an error
  71     // return: if OnInit() returns false, the application terminates)
  72     virtual bool OnInit();
  73 };
  74
  75 // Define a new frame type: this is going to be our main frame
  76 class MyFrame : public wxFrame
  77 {
  78 public:
  79     // ctor(s)
  80     MyFrame(const wxString& title);
  81     void OnBackButton(wxCommandEvent& myEvent);
  82     void OnNextButton(wxCommandEvent& myEvent);
  83     void OnURLEnter(wxCommandEvent& myEvent);
  84     void OnStopButton(wxCommandEvent& myEvent);
  85     void OnReloadButton(wxCommandEvent& myEvent);
  86     void OnViewSource(wxCommandEvent& myEvent);
  87     void OnSetSource(wxCommandEvent& myEvent);
  88     void OnStateChanged(wxWebKitStateChangedEvent& myEvent);
  89     wxWebKitCtrl* mySafari;
  90     wxTextCtrl* urlText;
  91 private:
  92     // any class wishing to process wxWindows events must use this macro
  93     DECLARE_EVENT_TABLE()
  94 };
  95
  96 // ----------------------------------------------------------------------------
  97 // event tables and other macros for wxWindows
  98 // ----------------------------------------------------------------------------
  99
 100 // the event tables connect the wxWindows events with the functions (event
 101 // handlers) which process them. It can be also done at run-time, but for the
 102 // simple menu events like this the static method is much simpler.
 103 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 104     EVT_BUTTON(ID_BACK, MyFrame::OnBackButton)
 105     EVT_BUTTON(ID_NEXT, MyFrame::OnNextButton)
 106     EVT_BUTTON(ID_STOP, MyFrame::OnStopButton)
 107     EVT_BUTTON(ID_RELOAD, MyFrame::OnReloadButton)
 108     EVT_MENU(ID_VIEW_SOURCE, MyFrame::OnViewSource)
 109     EVT_MENU(ID_SET_SOURCE, MyFrame::OnSetSource)
 110     EVT_TEXT_ENTER(ID_URLLIST, MyFrame::OnURLEnter)
 111     EVT_WEBKIT_STATE_CHANGED(MyFrame::OnStateChanged)
 112     //EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
 113     //EVT_MENU(Minimal_About, MyFrame::OnAbout)
 114 END_EVENT_TABLE()
 115
 116 // Create a new application object: this macro will allow wxWindows to create
 117 // the application object during program execution (it's better than using a
 118 // static object for many reasons) and also implements the accessor function
 119 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 120 // not wxApp)
 121 IMPLEMENT_APP(MyApp)
 122
 123 // ============================================================================
 124 // implementation
 125 // ============================================================================
 126
 127 // ----------------------------------------------------------------------------
 128 // the application class
 129 // ----------------------------------------------------------------------------
 130
 131 // 'Main program' equivalent: the program execution "starts" here
 132 bool MyApp::OnInit()
 133 {
 134     // create the main application window
 135     MyFrame *frame = new MyFrame(_T("wxWebKit Sample"));
 136
 137     // and show it (the frames, unlike simple controls, are not shown when
 138     // created initially)
 139     frame->Show(true);
 140
 141     // success: wxApp::OnRun() will be called which will enter the main message
 142     // loop and the application will run. If we returned false here, the
 143     // application would exit immediately.
 144     return true;
 145 }
 146
 147 // ----------------------------------------------------------------------------
 148 // main frame
 149 // ----------------------------------------------------------------------------
 150
 151 // frame constructor
 152 MyFrame::MyFrame(const wxString& title)
 153        : wxFrame(NULL, wxID_ANY, title, wxDefaultPosition, wxSize(500,500))
 154 {
 155     wxMenuBar* myBar = new wxMenuBar();
 156     wxMenu* fileMenu = new wxMenu;
 157     fileMenu->Append(ID_OPEN, _("&Open"));
 158     fileMenu->Append(ID_SAVE, _("&Save"));
 159     myBar->Append(fileMenu, _("&File"));
 160
 161     wxMenu* editMenu = new wxMenu;
 162     editMenu->Append(ID_SET_SOURCE, _("Set Page Source"));
 163     myBar->Append(editMenu, _("&Edit"));
 164
 165     //wxMenu* viewMenu = new wxMenu(_("View"));
 166     //viewMenu->Append(ID_VIEW_SOURCE, _("View Source"));
 167     //myBar->Append(viewMenu, _("View"));
 168
 169     SetMenuBar(myBar);
 170
 171     wxToolBar* myToolbar = CreateToolBar();
 172     wxButton* btnBack = new wxButton(myToolbar, ID_BACK, _("Back"));
 173     myToolbar->AddControl(btnBack);
 174     myToolbar->AddSeparator();
 175     wxButton* btnNext = new wxButton(myToolbar, ID_NEXT, _("Next"));
 176     myToolbar->AddControl(btnNext);
 177     myToolbar->AddSeparator();
 178     wxButton* btnStop = new wxButton(myToolbar, ID_STOP, _("Stop"));
 179     myToolbar->AddControl(btnStop);
 180     myToolbar->AddSeparator();
 181     wxButton* btnReload = new wxButton(myToolbar, ID_RELOAD, _("Reload"));
 182     myToolbar->AddControl(btnReload);
 183     myToolbar->AddSeparator();
 184     urlText = new wxTextCtrl(myToolbar, ID_URLLIST, _T("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(220, -1), wxTE_PROCESS_ENTER);
 185     myToolbar->AddControl(urlText);
 186     myToolbar->AddSeparator();
 187     myToolbar->Realize();
 188
 189     mySafari = new wxWebKitCtrl(this, ID_WEBKIT, _T("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(200, 200));
 190
 191 #if wxUSE_STATUSBAR
 192     CreateStatusBar(2);
 193 #endif // wxUSE_STATUSBAR
 194 }
 195
 196 void MyFrame::OnBackButton(wxCommandEvent& myEvent){
 197     if (mySafari->CanGoBack())
 198         mySafari->GoBack();
 199 }
 200
 201 void MyFrame::OnNextButton(wxCommandEvent& myEvent){
 202     if (mySafari->CanGoForward())
 203         mySafari->GoForward();
 204 }
 205
 206 void MyFrame::OnStopButton(wxCommandEvent& myEvent){
 207         mySafari->Stop();
 208 }
 209
 210 void MyFrame::OnReloadButton(wxCommandEvent& myEvent){
 211         mySafari->Reload();
 212 }
 213
 214 void MyFrame::OnURLEnter(wxCommandEvent& myEvent){
 215     mySafari->LoadURL(urlText->GetValue());
 216 }
 217
 218 void MyFrame::OnStateChanged(wxWebKitStateChangedEvent& myEvent){
 219     if (GetStatusBar() != NULL){
 220         if (myEvent.GetState() == wxWEBKIT_STATE_NEGOTIATING){
 221             GetStatusBar()->SetStatusText(_("Contacting ") + myEvent.GetURL());
 222         }
 223         else if (myEvent.GetState() == wxWEBKIT_STATE_TRANSFERRING){
 224             GetStatusBar()->SetStatusText(_("Loading ") + myEvent.GetURL());
 225         }
 226         else if (myEvent.GetState() == wxWEBKIT_STATE_STOP){
 227             GetStatusBar()->SetStatusText(_("Load complete."));
 228             SetTitle(mySafari->GetTitle());
 229         }
 230         else if (myEvent.GetState() == wxWEBKIT_STATE_FAILED){
 231             GetStatusBar()->SetStatusText(_("Failed to load ") + myEvent.GetURL());
 232         }
 233     }
 234
 235 }
 236
 237 void MyFrame::OnViewSource(wxCommandEvent& myEvent){
 238     if (mySafari->CanGetPageSource())
 239         wxMessageBox(mySafari->GetPageSource());
 240 }
 241
 242 void MyFrame::OnSetSource(wxCommandEvent& myEvent){
 243     if (mySafari){
 244         wxString myText = wxT("<HTML><HEAD></HEAD><BODY><P>Hello world!</P></BODY></HTML>");
 245         mySafari->SetPageSource(myText);
 246     }
 247 }