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