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" wxWidgets headers)
  29 #ifndef WX_PRECOMP
  30     #include "wx/wx.h"
  31 #endif
  32
  33 #include "wx/html/webkit.h"
  34
  35 #ifndef wxHAS_IMAGES_IN_RESOURCES
  36     #include "../../sample.xpm"
  37 #endif
  38
  39 // ----------------------------------------------------------------------------
  40 // resources
  41 // ----------------------------------------------------------------------------
  42
  43 enum {
  44     ID_BACK = wxID_HIGHEST + 1,
  45     ID_NEXT = wxID_HIGHEST + 2,
  46     ID_RELOAD = wxID_HIGHEST + 3,
  47     ID_URLLIST = wxID_HIGHEST + 4,
  48     ID_STOP = wxID_HIGHEST + 5,
  49     ID_WEBKIT = wxID_HIGHEST + 6,
  50     ID_VIEW_SOURCE = wxID_HIGHEST + 7,
  51     ID_OPEN = wxID_HIGHEST + 8,
  52     ID_SAVE = wxID_HIGHEST + 9,
  53     ID_SET_SOURCE = wxID_HIGHEST + 10
  54 };
  55
  56 // ----------------------------------------------------------------------------
  57 // private classes
  58 // ----------------------------------------------------------------------------
  59
  60 // Define a new application type, each program should derive a class from wxApp
  61 class MyApp : public wxApp
  62 {
  63 public:
  64     // override base class virtuals
  65     // ----------------------------
  66
  67     // this one is called on application startup and is a good place for the app
  68     // initialization (doing it here and not in the ctor allows to have an error
  69     // return: if OnInit() returns false, the application terminates)
  70     virtual bool OnInit();
  71 };
  72
  73 // Define a new frame type: this is going to be our main frame
  74 class MyFrame : public wxFrame
  75 {
  76 public:
  77     // ctor(s)
  78     MyFrame(const wxString& title);
  79     void OnBackButton(wxCommandEvent& myEvent);
  80     void OnNextButton(wxCommandEvent& myEvent);
  81     void OnURLEnter(wxCommandEvent& myEvent);
  82     void OnStopButton(wxCommandEvent& myEvent);
  83     void OnReloadButton(wxCommandEvent& myEvent);
  84     void OnViewSource(wxCommandEvent& myEvent);
  85     void OnSetSource(wxCommandEvent& myEvent);
  86     void OnStateChanged(wxWebKitStateChangedEvent& myEvent);
  87     wxWebKitCtrl* mySafari;
  88     wxTextCtrl* urlText;
  89 private:
  90     // any class wishing to process wxWidgets events must use this macro
  91     DECLARE_EVENT_TABLE()
  92 };
  93
  94 // ----------------------------------------------------------------------------
  95 // event tables and other macros for wxWidgets
  96 // ----------------------------------------------------------------------------
  97
  98 // the event tables connect the wxWidgets events with the functions (event
  99 // handlers) which process them. It can be also done at run-time, but for the
 100 // simple menu events like this the static method is much simpler.
 101 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 102     EVT_BUTTON(ID_BACK, MyFrame::OnBackButton)
 103     EVT_BUTTON(ID_NEXT, MyFrame::OnNextButton)
 104     EVT_BUTTON(ID_STOP, MyFrame::OnStopButton)
 105     EVT_BUTTON(ID_RELOAD, MyFrame::OnReloadButton)
 106     EVT_MENU(ID_VIEW_SOURCE, MyFrame::OnViewSource)
 107     EVT_MENU(ID_SET_SOURCE, MyFrame::OnSetSource)
 108     EVT_TEXT_ENTER(ID_URLLIST, MyFrame::OnURLEnter)
 109     EVT_WEBKIT_STATE_CHANGED(MyFrame::OnStateChanged)
 110     //EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
 111     //EVT_MENU(Minimal_About, MyFrame::OnAbout)
 112 END_EVENT_TABLE()
 113
 114 // Create a new application object: this macro will allow wxWidgets to create
 115 // the application object during program execution (it's better than using a
 116 // static object for many reasons) and also implements the accessor function
 117 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 118 // not wxApp)
 119 IMPLEMENT_APP(MyApp)
 120
 121 // ============================================================================
 122 // implementation
 123 // ============================================================================
 124
 125 // ----------------------------------------------------------------------------
 126 // the application class
 127 // ----------------------------------------------------------------------------
 128
 129 // 'Main program' equivalent: the program execution "starts" here
 130 bool MyApp::OnInit()
 131 {
 132     if ( !wxApp::OnInit() )
 133         return false;
 134
 135     // create the main application window
 136     MyFrame *frame = new MyFrame(wxT("wxWebKit Sample"));
 137
 138     // and show it (the frames, unlike simple controls, are not shown when
 139     // created initially)
 140     frame->Show(true);
 141
 142     // success: wxApp::OnRun() will be called which will enter the main message
 143     // loop and the application will run. If we returned false here, the
 144     // application would exit immediately.
 145     return true;
 146 }
 147
 148 // ----------------------------------------------------------------------------
 149 // main frame
 150 // ----------------------------------------------------------------------------
 151
 152 // frame constructor
 153 MyFrame::MyFrame(const wxString& title)
 154        : wxFrame(NULL, wxID_ANY, title, wxDefaultPosition, wxSize(500,500))
 155 {
 156     SetIcon(wxICON(sample));
 157
 158     wxMenuBar* myBar = new wxMenuBar();
 159     wxMenu* fileMenu = new wxMenu;
 160     fileMenu->Append(ID_OPEN, _("&Open"));
 161     fileMenu->Append(ID_SAVE, _("&Save"));
 162     myBar->Append(fileMenu, _("&File"));
 163
 164     wxMenu* editMenu = new wxMenu;
 165     editMenu->Append(ID_SET_SOURCE, _("Set Page Source"));
 166     myBar->Append(editMenu, _("&Edit"));
 167
 168     //wxMenu* viewMenu = new wxMenu(_("View"));
 169     //viewMenu->Append(ID_VIEW_SOURCE, _("View Source"));
 170     //myBar->Append(viewMenu, _("View"));
 171
 172     SetMenuBar(myBar);
 173
 174     wxToolBar* myToolbar = CreateToolBar();
 175     wxButton* btnBack = new wxButton(myToolbar, ID_BACK, _("Back"));
 176     myToolbar->AddControl(btnBack);
 177     myToolbar->AddSeparator();
 178     wxButton* btnNext = new wxButton(myToolbar, ID_NEXT, _("Next"));
 179     myToolbar->AddControl(btnNext);
 180     myToolbar->AddSeparator();
 181     wxButton* btnStop = new wxButton(myToolbar, ID_STOP, _("Stop"));
 182     myToolbar->AddControl(btnStop);
 183     myToolbar->AddSeparator();
 184     wxButton* btnReload = new wxButton(myToolbar, ID_RELOAD, _("Reload"));
 185     myToolbar->AddControl(btnReload);
 186     myToolbar->AddSeparator();
 187     urlText = new wxTextCtrl(myToolbar, ID_URLLIST, wxT("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(220, -1), wxTE_PROCESS_ENTER);
 188     myToolbar->AddControl(urlText);
 189     myToolbar->AddSeparator();
 190     myToolbar->Realize();
 191
 192     // Testing wxWebKitCtrl inside a panel
 193 #if 1
 194     wxPanel* panel = new wxPanel(this, wxID_ANY);
 195
 196     wxBoxSizer* boxSizer = new wxBoxSizer(wxVERTICAL);
 197     panel->SetSizer(boxSizer);
 198
 199     mySafari = new wxWebKitCtrl(panel, ID_WEBKIT, wxT("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(200, 200));
 200
 201     boxSizer->Add(mySafari, 1, wxEXPAND);
 202
 203     wxBoxSizer* frameSizer = new wxBoxSizer(wxVERTICAL);
 204     SetSizer(frameSizer);
 205     frameSizer->Add(panel, 1, wxEXPAND);
 206 #else
 207     mySafari = new wxWebKitCtrl(this, ID_WEBKIT, wxT("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(200, 200));
 208 #endif
 209
 210 #if wxUSE_STATUSBAR
 211     CreateStatusBar(2);
 212 #endif // wxUSE_STATUSBAR
 213 }
 214
 215 void MyFrame::OnBackButton(wxCommandEvent& WXUNUSED(myEvent))
 216 {
 217     if (mySafari->CanGoBack())
 218         mySafari->GoBack();
 219 }
 220
 221 void MyFrame::OnNextButton(wxCommandEvent& WXUNUSED(myEvent))
 222 {
 223     if (mySafari->CanGoForward())
 224         mySafari->GoForward();
 225 }
 226
 227 void MyFrame::OnStopButton(wxCommandEvent& WXUNUSED(myEvent))
 228 {
 229         mySafari->Stop();
 230 }
 231
 232 void MyFrame::OnReloadButton(wxCommandEvent& WXUNUSED(myEvent))
 233 {
 234     mySafari->Reload();
 235 }
 236
 237 void MyFrame::OnURLEnter(wxCommandEvent& WXUNUSED(myEvent))
 238 {
 239     mySafari->LoadURL(urlText->GetValue());
 240 }
 241
 242 void MyFrame::OnStateChanged(wxWebKitStateChangedEvent& myEvent)
 243 {
 244     if (GetStatusBar() != NULL)
 245     {
 246         if (myEvent.GetState() == wxWEBKIT_STATE_NEGOTIATING)
 247         {
 248             GetStatusBar()->SetStatusText(_("Contacting ") + myEvent.GetURL());
 249             urlText->SetValue(myEvent.GetURL());
 250         }
 251         else if (myEvent.GetState() == wxWEBKIT_STATE_TRANSFERRING)
 252         {
 253             GetStatusBar()->SetStatusText(_("Loading ") + myEvent.GetURL());
 254         }
 255         else if (myEvent.GetState() == wxWEBKIT_STATE_STOP)
 256         {
 257             GetStatusBar()->SetStatusText(_("Load complete."));
 258             SetTitle(mySafari->GetTitle());
 259         }
 260         else if (myEvent.GetState() == wxWEBKIT_STATE_FAILED)
 261         {
 262             GetStatusBar()->SetStatusText(_("Failed to load ") + myEvent.GetURL());
 263         }
 264     }
 265
 266 }
 267
 268 void MyFrame::OnViewSource(wxCommandEvent& WXUNUSED(myEvent))
 269 {
 270     if (mySafari->CanGetPageSource())
 271         wxMessageBox(mySafari->GetPageSource());
 272 }
 273
 274 void MyFrame::OnSetSource(wxCommandEvent& WXUNUSED(myEvent))
 275 {
 276     if (mySafari)
 277     {
 278         wxString myText = wxT("<HTML><HEAD></HEAD><BODY><P>Hello world!</P></BODY></HTML>");
 279         mySafari->SetPageSource(myText);
 280     }
 281 }