wxWidgets/samples/html/htmlctrl/htmlctrl.cpp

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8.7 KiB
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Executable File

/////////////////////////////////////////////////////////////////////////////
// Name: htmlctrl.cpp
// Purpose: HtmlCtrl sample
// Author: Julian Smart / Kevin Ollivier
// Modified by:
// Created: 04/16/2004
// RCS-ID: $Id$
// Copyright: (c) Julian Smart / Kevin Ollivier
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWindows headers)
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/html/wxWebKit.h"
// ----------------------------------------------------------------------------
// resources
// ----------------------------------------------------------------------------
// the application icon (under Windows and OS/2 it is in resources and even
// though we could still include the XPM here it would be unused)
#if !defined(__WXMSW__) && !defined(__WXPM__)
#include "../../sample.xpm"
#endif
enum {
ID_BACK = wxID_HIGHEST + 1,
ID_NEXT = wxID_HIGHEST + 2,
ID_RELOAD = wxID_HIGHEST + 3,
ID_URLLIST = wxID_HIGHEST + 4,
ID_STOP = wxID_HIGHEST + 5,
ID_WEBKIT = wxID_HIGHEST + 6,
ID_VIEW_SOURCE = wxID_HIGHEST + 7,
ID_OPEN = wxID_HIGHEST + 8,
ID_SAVE = wxID_HIGHEST + 9,
ID_SET_SOURCE = wxID_HIGHEST + 10
};
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// override base class virtuals
// ----------------------------
// this one is called on application startup and is a good place for the app
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit();
};
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
// ctor(s)
MyFrame(const wxString& title);
void OnBackButton(wxCommandEvent& myEvent);
void OnNextButton(wxCommandEvent& myEvent);
void OnURLEnter(wxCommandEvent& myEvent);
void OnStopButton(wxCommandEvent& myEvent);
void OnReloadButton(wxCommandEvent& myEvent);
void OnViewSource(wxCommandEvent& myEvent);
void OnSetSource(wxCommandEvent& myEvent);
void OnStateChanged(wxWebKitStateChangedEvent& myEvent);
wxWebKitControl* mySafari;
wxTextCtrl* urlText;
private:
// any class wishing to process wxWindows events must use this macro
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// event tables and other macros for wxWindows
// ----------------------------------------------------------------------------
// the event tables connect the wxWindows events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_BUTTON(ID_BACK, MyFrame::OnBackButton)
EVT_BUTTON(ID_NEXT, MyFrame::OnNextButton)
EVT_BUTTON(ID_STOP, MyFrame::OnStopButton)
EVT_BUTTON(ID_RELOAD, MyFrame::OnReloadButton)
EVT_MENU(ID_VIEW_SOURCE, MyFrame::OnViewSource)
EVT_MENU(ID_SET_SOURCE, MyFrame::OnSetSource)
EVT_TEXT_ENTER(ID_URLLIST, MyFrame::OnURLEnter)
EVT_WEBKIT_STATE_CHANGED(MyFrame::OnStateChanged)
//EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
//EVT_MENU(Minimal_About, MyFrame::OnAbout)
END_EVENT_TABLE()
// Create a new application object: this macro will allow wxWindows to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also implements the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
IMPLEMENT_APP(MyApp)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
// create the main application window
MyFrame *frame = new MyFrame(_T("wxWebKit Sample"));
// and show it (the frames, unlike simple controls, are not shown when
// created initially)
frame->Show(true);
// success: wxApp::OnRun() will be called which will enter the main message
// loop and the application will run. If we returned false here, the
// application would exit immediately.
return true;
}
// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------
// frame constructor
MyFrame::MyFrame(const wxString& title)
: wxFrame(NULL, wxID_ANY, title, wxDefaultPosition, wxSize(500,500))
{
wxMenuBar* myBar = new wxMenuBar();
wxMenu* fileMenu = new wxMenu(_("&File"));
fileMenu->Append(ID_OPEN, _("Open"));
fileMenu->Append(ID_SAVE, _("Save"));
myBar->Append(fileMenu, _("File"));
wxMenu* editMenu = new wxMenu(_("Edit"));
editMenu->Append(ID_SET_SOURCE, _("Set Page Source"));
myBar->Append(editMenu, _("Edit"));
//wxMenu* viewMenu = new wxMenu(_("View"));
//viewMenu->Append(ID_VIEW_SOURCE, _("View Source"));
//myBar->Append(viewMenu, _("View"));
SetMenuBar(myBar);
wxToolBar* myToolbar = CreateToolBar();
wxButton* btnBack = new wxButton(myToolbar, ID_BACK, _("Back"));
myToolbar->AddControl(btnBack);
myToolbar->AddSeparator();
wxButton* btnNext = new wxButton(myToolbar, ID_NEXT, _("Next"));
myToolbar->AddControl(btnNext);
myToolbar->AddSeparator();
wxButton* btnStop = new wxButton(myToolbar, ID_STOP, _("Stop"));
myToolbar->AddControl(btnStop);
myToolbar->AddSeparator();
wxButton* btnReload = new wxButton(myToolbar, ID_RELOAD, _("Reload"));
myToolbar->AddControl(btnReload);
myToolbar->AddSeparator();
urlText = new wxTextCtrl(myToolbar, ID_URLLIST, _T("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(220, -1), wxTE_PROCESS_ENTER);
myToolbar->AddControl(urlText);
myToolbar->AddSeparator();
myToolbar->Realize();
mySafari = new wxWebKitControl(this, ID_WEBKIT, _T("http://www.wxwidgets.org"), wxDefaultPosition, wxSize(200, 200));
#if wxUSE_STATUSBAR
CreateStatusBar(2);
#endif // wxUSE_STATUSBAR
}
void MyFrame::OnBackButton(wxCommandEvent& myEvent){
if (mySafari->CanGoBack())
mySafari->GoBack();
}
void MyFrame::OnNextButton(wxCommandEvent& myEvent){
if (mySafari->CanGoForward())
mySafari->GoForward();
}
void MyFrame::OnStopButton(wxCommandEvent& myEvent){
mySafari->Stop();
}
void MyFrame::OnReloadButton(wxCommandEvent& myEvent){
mySafari->Reload();
}
void MyFrame::OnURLEnter(wxCommandEvent& myEvent){
mySafari->LoadURL(urlText->GetValue());
}
void MyFrame::OnStateChanged(wxWebKitStateChangedEvent& myEvent){
if (GetStatusBar() != NULL){
if (myEvent.GetState() == wxWEBKIT_STATE_NEGOTIATING){
GetStatusBar()->SetStatusText(_("Contacting ") + myEvent.GetURL());
}
else if (myEvent.GetState() == wxWEBKIT_STATE_TRANSFERRING){
GetStatusBar()->SetStatusText(_("Loading ") + myEvent.GetURL());
}
else if (myEvent.GetState() == wxWEBKIT_STATE_STOP){
GetStatusBar()->SetStatusText(_("Load complete."));
SetTitle(mySafari->GetTitle());
}
else if (myEvent.GetState() == wxWEBKIT_STATE_FAILED){
GetStatusBar()->SetStatusText(_("Failed to load ") + myEvent.GetURL());
}
}
}
void MyFrame::OnViewSource(wxCommandEvent& myEvent){
if (mySafari->CanGetPageSource())
wxMessageBox(mySafari->GetPageSource());
}
void MyFrame::OnSetSource(wxCommandEvent& myEvent){
if (mySafari){
wxString myText = wxString("<HTML><HEAD></HEAD><BODY><P>Hello world!</P></BODY></HTML>");
mySafari->SetPageSource(myText);
}
}