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 // Copyright:   (c) Julian Smart / Kevin Ollivier
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx/wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 // for all others, include the necessary headers (this file is usually all you
  27 // need because it includes almost all "standard" wxWidgets headers)
  28 #ifndef WX_PRECOMP
  29     #include "wx/wx.h"
  30 #endif
  31
  32 #include "wx/html/webkit.h"
  33
  34 #ifndef wxHAS_IMAGES_IN_RESOURCES
  35     #include "../../sample.xpm"
  36 #endif
  37
  38 // ----------------------------------------------------------------------------
  39 // resources
  40 // ----------------------------------------------------------------------------
  41
  42 enum {
  43     ID_BACK = wxID_HIGHEST + 1,
  44     ID_NEXT = wxID_HIGHEST + 2,
  45     ID_RELOAD = wxID_HIGHEST + 3,
  46     ID_URLLIST = wxID_HIGHEST + 4,
  47     ID_STOP = wxID_HIGHEST + 5,
  48     ID_WEBKIT = wxID_HIGHEST + 6,
  49     ID_VIEW_SOURCE = wxID_HIGHEST + 7,
  50     ID_OPEN = wxID_HIGHEST + 8,
  51     ID_SAVE = wxID_HIGHEST + 9,
  52     ID_SET_SOURCE = wxID_HIGHEST + 10
  53 };
  54
  55 // ----------------------------------------------------------------------------
  56 // private classes
  57 // ----------------------------------------------------------------------------
  58
  59 // Define a new application type, each program should derive a class from wxApp
  60 class MyApp : public wxApp
  61 {
  62 public:
  63     // override base class virtuals
  64     // ----------------------------
  65
  66     // this one is called on application startup and is a good place for the app
  67     // initialization (doing it here and not in the ctor allows to have an error
  68     // return: if OnInit() returns false, the application terminates)
  69     virtual bool OnInit();
  70 };
  71
  72 // Define a new frame type: this is going to be our main frame
  73 class MyFrame : public wxFrame
  74 {
  75 public:
  76     // ctor(s)
  77     MyFrame(const wxString& title);
  78     void OnBackButton(wxCommandEvent& myEvent);
  79     void OnNextButton(wxCommandEvent& myEvent);
  80     void OnURLEnter(wxCommandEvent& myEvent);
  81     void OnStopButton(wxCommandEvent& myEvent);
  82     void OnReloadButton(wxCommandEvent& myEvent);
  83     void OnViewSource(wxCommandEvent& myEvent);
  84     void OnSetSource(wxCommandEvent& myEvent);
  85     void OnStateChanged(wxWebKitStateChangedEvent& myEvent);
  86     wxWebKitCtrl* mySafari;
  87     wxTextCtrl* urlText;
  88 private:
  89     // any class wishing to process wxWidgets events must use this macro
  90     DECLARE_EVENT_TABLE()
  91 };
  92
  93 // ----------------------------------------------------------------------------
  94 // event tables and other macros for wxWidgets
  95 // ----------------------------------------------------------------------------
  96
  97 // the event tables connect the wxWidgets events with the functions (event
  98 // handlers) which process them. It can be also done at run-time, but for the
  99 // simple menu events like this the static method is much simpler.
 100 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 101     EVT_BUTTON(ID_BACK, MyFrame::OnBackButton)
 102     EVT_BUTTON(ID_NEXT, MyFrame::OnNextButton)
 103     EVT_BUTTON(ID_STOP, MyFrame::OnStopButton)
 104     EVT_BUTTON(ID_RELOAD, MyFrame::OnReloadButton)
 105     EVT_MENU(ID_VIEW_SOURCE, MyFrame::OnViewSource)
 106     EVT_MENU(ID_SET_SOURCE, MyFrame::OnSetSource)
 107     EVT_TEXT_ENTER(ID_URLLIST, MyFrame::OnURLEnter)
 108     EVT_WEBKIT_STATE_CHANGED(MyFrame::OnStateChanged)
 109     //EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
 110     //EVT_MENU(Minimal_About, MyFrame::OnAbout)
 111 END_EVENT_TABLE()
 112
 113 // Create a new application object: this macro will allow wxWidgets to create
 114 // the application object during program execution (it's better than using a
 115 // static object for many reasons) and also implements the accessor function
 116 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 117 // not wxApp)
 118 IMPLEMENT_APP(MyApp)
 119
 120 // ============================================================================
 121 // implementation
 122 // ============================================================================
 123
 124 // ----------------------------------------------------------------------------
 125 // the application class
 126 // ----------------------------------------------------------------------------
 127
 128 // 'Main program' equivalent: the program execution "starts" here
 129 bool MyApp::OnInit()
 130 {
 131     if ( !wxApp::OnInit() )
 132         return false;
 133
 134     // create the main application window
 135     MyFrame *frame = new MyFrame(wxT("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     SetIcon(wxICON(sample));
 156
 157     wxMenuBar* myBar = new wxMenuBar();
 158     wxMenu* fileMenu = new wxMenu;
 159     fileMenu->Append(ID_OPEN, _("&Open"));
 160     fileMenu->Append(ID_SAVE, _("&Save"));
 161     myBar->Append(fileMenu, _("&File"));
 162
 163     wxMenu* editMenu = new wxMenu;
 164     editMenu->Append(ID_SET_SOURCE, _("Set Page Source"));
 165     myBar->Append(editMenu, _("&Edit"));
 166
 167     //wxMenu* viewMenu = new wxMenu(_("View"));
 168     //viewMenu->Append(ID_VIEW_SOURCE, _("View Source"));
 169     //myBar->Append(viewMenu, _("View"));
 170
 171     SetMenuBar(myBar);
 172
 173     wxToolBar* myToolbar = CreateToolBar();
 174     wxButton* btnBack = new wxButton(myToolbar, ID_BACK, _("Back"));
 175     myToolbar->AddControl(btnBack);
 176     myToolbar->AddSeparator();
 177     wxButton* btnNext = new wxButton(myToolbar, ID_NEXT, _("Next"));
 178     myToolbar->AddControl(btnNext);
 179     myToolbar->AddSeparator();
 180     wxButton* btnStop = new wxButton(myToolbar, ID_STOP, _("Stop"));
 181     myToolbar->AddControl(btnStop);
 182     myToolbar->AddSeparator();
 183     wxButton* btnReload = new wxButton(myToolbar, ID_RELOAD, _("Reload"));
 184     myToolbar->AddControl(btnReload);
 185     myToolbar->AddSeparator();
 186     urlText = new wxTextCtrl(myToolbar, ID_URLLIST, wxT("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(220, -1), wxTE_PROCESS_ENTER);
 187     myToolbar->AddControl(urlText);
 188     myToolbar->AddSeparator();
 189     myToolbar->Realize();
 190
 191     // Testing wxWebKitCtrl inside a panel
 192 #if 1
 193     wxPanel* panel = new wxPanel(this, wxID_ANY);
 194
 195     wxBoxSizer* boxSizer = new wxBoxSizer(wxVERTICAL);
 196     panel->SetSizer(boxSizer);
 197
 198     mySafari = new wxWebKitCtrl(panel, ID_WEBKIT, wxT("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(200, 200));
 199
 200     boxSizer->Add(mySafari, 1, wxEXPAND);
 201
 202     wxBoxSizer* frameSizer = new wxBoxSizer(wxVERTICAL);
 203     SetSizer(frameSizer);
 204     frameSizer->Add(panel, 1, wxEXPAND);
 205 #else
 206     mySafari = new wxWebKitCtrl(this, ID_WEBKIT, wxT("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(200, 200));
 207 #endif
 208
 209 #if wxUSE_STATUSBAR
 210     CreateStatusBar(2);
 211 #endif // wxUSE_STATUSBAR
 212 }
 213
 214 void MyFrame::OnBackButton(wxCommandEvent& WXUNUSED(myEvent))
 215 {
 216     if (mySafari->CanGoBack())
 217         mySafari->GoBack();
 218 }
 219
 220 void MyFrame::OnNextButton(wxCommandEvent& WXUNUSED(myEvent))
 221 {
 222     if (mySafari->CanGoForward())
 223         mySafari->GoForward();
 224 }
 225
 226 void MyFrame::OnStopButton(wxCommandEvent& WXUNUSED(myEvent))
 227 {
 228         mySafari->Stop();
 229 }
 230
 231 void MyFrame::OnReloadButton(wxCommandEvent& WXUNUSED(myEvent))
 232 {
 233     mySafari->Reload();
 234 }
 235
 236 void MyFrame::OnURLEnter(wxCommandEvent& WXUNUSED(myEvent))
 237 {
 238     mySafari->LoadURL(urlText->GetValue());
 239 }
 240
 241 void MyFrame::OnStateChanged(wxWebKitStateChangedEvent& myEvent)
 242 {
 243     if (GetStatusBar() != NULL)
 244     {
 245         if (myEvent.GetState() == wxWEBKIT_STATE_NEGOTIATING)
 246         {
 247             GetStatusBar()->SetStatusText(_("Contacting ") + myEvent.GetURL());
 248             urlText->SetValue(myEvent.GetURL());
 249         }
 250         else if (myEvent.GetState() == wxWEBKIT_STATE_TRANSFERRING)
 251         {
 252             GetStatusBar()->SetStatusText(_("Loading ") + myEvent.GetURL());
 253         }
 254         else if (myEvent.GetState() == wxWEBKIT_STATE_STOP)
 255         {
 256             GetStatusBar()->SetStatusText(_("Load complete."));
 257             SetTitle(mySafari->GetTitle());
 258         }
 259         else if (myEvent.GetState() == wxWEBKIT_STATE_FAILED)
 260         {
 261             GetStatusBar()->SetStatusText(_("Failed to load ") + myEvent.GetURL());
 262         }
 263     }
 264
 265 }
 266
 267 void MyFrame::OnViewSource(wxCommandEvent& WXUNUSED(myEvent))
 268 {
 269     if (mySafari->CanGetPageSource())
 270         wxMessageBox(mySafari->GetPageSource());
 271 }
 272
 273 void MyFrame::OnSetSource(wxCommandEvent& WXUNUSED(myEvent))
 274 {
 275     if (mySafari)
 276     {
 277         wxString myText = wxT("<HTML><HEAD></HEAD><BODY><P>Hello world!</P></BODY></HTML>");
 278         mySafari->SetPageSource(myText);
 279     }
 280 }