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wxWidgets/samples/web/web.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: wxiepanel.cpp
// Purpose: wxBetterHTMLControl test
// Author: Marianne Gagnon
// Id: $Id$
// Copyright: (c) 2010 Marianne Gagnon
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include <wx/wx.h>
#include <wx/artprov.h>
#include <wx/notifmsg.h>
#include <wx/settings.h>
#if wxUSE_STC
#include <wx/stc/stc.h>
#else
#error "wxStyledTextControl is needed by this sample"
#endif
#include "wx/webview.h"
#include "wxlogo.xpm"
#include "back.xpm"
#include "forward.xpm"
#include "stop.xpm"
#include "refresh.xpm"
// --------------------------------------------------------------------------------------------------
// SOURCE VIEW FRAME
// --------------------------------------------------------------------------------------------------
enum
{
MARGIN_LINE_NUMBERS,
//MARGIN_DIVIDER,
//MARGIN_FOLDING
};
class SourceViewDialog : public wxDialog
{
public:
void onClose(wxCloseEvent& evt)
{
EndModal( GetReturnCode() );
}
SourceViewDialog(wxWindow* parent, wxString source) :
wxDialog(parent, wxID_ANY, "Source Code",
wxDefaultPosition, wxSize(700,500),
wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
{
wxStyledTextCtrl* text = new wxStyledTextCtrl(this, wxID_ANY);
//text->SetLexer(wxSTC_LEX_HTML);
text->SetMarginWidth (MARGIN_LINE_NUMBERS, 50);
text->StyleSetForeground (wxSTC_STYLE_LINENUMBER, wxColour (75, 75, 75) );
text->StyleSetBackground (wxSTC_STYLE_LINENUMBER, wxColour (220, 220, 220));
text->SetMarginType (MARGIN_LINE_NUMBERS, wxSTC_MARGIN_NUMBER);
text->SetWrapMode (wxSTC_WRAP_WORD);
text->SetText(source);
text->StyleClearAll();
text->SetLexer(wxSTC_LEX_HTML);
text->StyleSetForeground (wxSTC_H_DOUBLESTRING, wxColour(255,0,0));
text->StyleSetForeground (wxSTC_H_SINGLESTRING, wxColour(255,0,0));
text->StyleSetForeground (wxSTC_H_ENTITY, wxColour(255,0,0));
text->StyleSetForeground (wxSTC_H_TAG, wxColour(0,150,0));
text->StyleSetForeground (wxSTC_H_TAGUNKNOWN, wxColour(0,150,0));
text->StyleSetForeground (wxSTC_H_ATTRIBUTE, wxColour(0,0,150));
text->StyleSetForeground (wxSTC_H_ATTRIBUTEUNKNOWN, wxColour(0,0,150));
text->StyleSetForeground (wxSTC_H_COMMENT, wxColour(150,150,150));
wxBoxSizer* sizer = new wxBoxSizer(wxVERTICAL);
sizer->Add(text, 1, wxEXPAND);
SetSizer(sizer);
Connect(wxEVT_CLOSE_WINDOW, wxCloseEventHandler(SourceViewDialog::onClose), NULL, this);
}
};
// --------------------------------------------------------------------------------------------------
// MAIN BROWSER CLASS
// --------------------------------------------------------------------------------------------------
class wxMiniApp : public wxApp
{
wxTextCtrl* url;
wxWebView* m_browser_ctrl;
wxFrame* frame;
wxToolBarToolBase* back;
wxToolBarToolBase* forward;
wxToolBarToolBase* stop;
wxToolBarToolBase* reload;
wxToolBarToolBase* tools;
wxMenu* toolsMenu;
wxMenuItem* tinySize;
wxMenuItem* smallSize;
wxMenuItem* mediumSize;
wxMenuItem* largeSize;
wxMenuItem* largestSize;
//wxMenuItem* offlineMode;
//wxMenuItem* onlineMode;
wxLogWindow* logging;
wxToolBar* m_toolbar;
wxTimer* m_timer;
int m_animation_angle;
wxPanel* m_notification_panel;
wxStaticText* m_notification_text;
public:
// function called at the application initialization
virtual bool OnInit();
/**
* Implement timer to display the loading animation (OK, I admit this is totally irrelevant to
* the HTML control being demonstrated here, but it's fun ;)
*/
void onAnimationTimer(wxTimerEvent& evt)
{
m_animation_angle += 15;
if (m_animation_angle > 360) m_animation_angle -= 360;
wxBitmap image(32, 32);
{
wxMemoryDC dc;
dc.SelectObject(image);
dc.SetBackground(wxBrush(wxColour(255,0,255)));
dc.Clear();
if (m_animation_angle >= 0 && m_animation_angle <= 180)
{
dc.SetBrush(*wxYELLOW_BRUSH);
dc.SetPen(*wxYELLOW_PEN);
dc.DrawCircle(16 - int(sin(m_animation_angle*0.01745f /* convert to radians */)*14.0f),
16 + int(cos(m_animation_angle*0.01745f /* convert to radians */)*14.0f), 3 );
}
dc.DrawBitmap(wxBitmap(wxlogo_xpm), 0, 0, true);
if (m_animation_angle > 180)
{
dc.SetBrush(*wxYELLOW_BRUSH);
dc.SetPen(*wxYELLOW_PEN);
dc.DrawCircle(16 - int(sin(m_animation_angle*0.01745f /* convert to radians */)*14.0f),
16 + int(cos(m_animation_angle*0.01745f /* convert to radians */)*14.0f), 3 );
}
}
image.SetMask(new wxMask(image, wxColour(255,0,255)));
m_toolbar->SetToolNormalBitmap(tools->GetId(), image);
}
/**
* Method that retrieves the current state from the web control and updates the GUI
* the reflect this current state.
*/
void updateState()
{
m_toolbar->EnableTool( back->GetId(), m_browser_ctrl->CanGoBack() );
m_toolbar->EnableTool( forward->GetId(), m_browser_ctrl->CanGoForward() );
if (m_browser_ctrl->IsBusy())
{
//tools->SetLabel(_("Loading..."));
if (m_timer == NULL)
{
m_timer = new wxTimer(this);
this->Connect(wxEVT_TIMER, wxTimerEventHandler(wxMiniApp::onAnimationTimer), NULL, this);
}
m_timer->Start(100); // start animation timer
m_toolbar->EnableTool( stop->GetId(), true );
}
else
{
if (m_timer != NULL) m_timer->Stop(); // stop animation timer
//tools->SetLabel(_("Tools"));
m_toolbar->SetToolNormalBitmap(tools->GetId(), wxBitmap(wxlogo_xpm));
m_toolbar->EnableTool( stop->GetId(), false );
}
frame->SetTitle( m_browser_ctrl->GetCurrentTitle() );
url->SetValue( m_browser_ctrl->GetCurrentURL() );
}
/**
* Callback invoked when user entered an URL and pressed enter
*/
void onUrl(wxCommandEvent& evt)
{
if (m_notification_panel->IsShown())
{
m_notification_panel->Hide();
frame->Layout();
}
m_browser_ctrl->LoadUrl( url->GetValue() );
updateState();
}
/**
* Callback invoked when user pressed the "back" button
*/
void onBack(wxCommandEvent& evt)
{
// First, hide notification panel if it was shown
if (m_notification_panel->IsShown())
{
m_notification_panel->Hide();
frame->Layout();
}
m_browser_ctrl->GoBack();
updateState();
}
/**
* Callback invoked when user pressed the "forward" button
*/
void onForward(wxCommandEvent& evt)
{
// First, hide notification panel if it was shown
if (m_notification_panel->IsShown())
{
m_notification_panel->Hide();
frame->Layout();
}
m_browser_ctrl->GoForward();
updateState();
}
/**
* Callback invoked when user pressed the "stop" button
*/
void onStop(wxCommandEvent& evt)
{
m_browser_ctrl->Stop();
updateState();
}
/**
* Callback invoked when user pressed the "reload" button
*/
void onReload(wxCommandEvent& evt)
{
// First, hide notification panel if it was shown
if (m_notification_panel->IsShown())
{
m_notification_panel->Hide();
frame->Layout();
}
m_browser_ctrl->Reload();
updateState();
}
/**
* Callback invoked when there is a request to load a new page (for instance
* when the user clicks a link)
*/
void onNavigationRequest(wxWebNavigationEvent& evt)
{
// First, hide notification panel if it was shown
if (m_notification_panel->IsShown())
{
m_notification_panel->Hide();
frame->Layout();
}
wxLogMessage("Navigation request to '" + evt.GetHref() + "' (target='" +
evt.GetTarget() + "')");
wxASSERT(m_browser_ctrl->IsBusy());
// Uncomment this to see how to block navigation requests
//int answer = wxMessageBox("Proceed with navigation to '" + evt.GetHref() + "'?",
// "Proceed with navigation?", wxYES_NO );
//if (answer != wxYES)
//{
// evt.Veto();
//}
updateState();
}
/**
* Callback invoked when a navigation request was accepted
*/
void onNavigationComplete(wxWebNavigationEvent& evt)
{
wxLogMessage("Navigation complete; url='" + evt.GetHref() + "'");
updateState();
}
/**
* Callback invoked when a page is finished loading
*/
void onDocumentLoaded(wxWebNavigationEvent& evt)
{
wxLogMessage("Document loaded; url='" + evt.GetHref() + "'");
updateState();
m_browser_ctrl->GetZoom();
}
/**
* Invoked when user selects the "View Source" menu item
*/
void onViewSourceRequest(wxCommandEvent& evt)
{
SourceViewDialog dlg(frame, m_browser_ctrl->GetPageSource());
dlg.Center();
dlg.ShowModal();
}
/**
* Invoked when user selects the "Menu" item
*/
void onToolsClicked(wxCommandEvent& evt)
{
tinySize->Check(false);
smallSize->Check(false);
mediumSize->Check(false);
largeSize->Check(false);
largestSize->Check(false);
wxWebViewZoom zoom = m_browser_ctrl->GetZoom();
switch (zoom)
{
case wxWEB_VIEW_ZOOM_TINY:
tinySize->Check();
break;
case wxWEB_VIEW_ZOOM_SMALL:
smallSize->Check();
break;
case wxWEB_VIEW_ZOOM_MEDIUM:
mediumSize->Check();
break;
case wxWEB_VIEW_ZOOM_LARGE:
largeSize->Check();
break;
case wxWEB_VIEW_ZOOM_LARGEST:
largestSize->Check();
break;
}
// bool IsOfflineMode();
// void SetOfflineMode(bool offline);
//offlineMode->Check(false);
//onlineMode->Check(false);
//const bool offline = m_browser_ctrl->IsOfflineMode();
//if (offline) offlineMode->Check();
//else onlineMode->Check();
wxPoint position = frame->ScreenToClient( wxGetMousePosition() );
frame->PopupMenu(toolsMenu, position.x, position.y);
}
/**
* Invoked when user selects the zoom size in the menu
*/
void onSetZoom(wxCommandEvent& evt)
{
if (evt.GetId() == tinySize->GetId())
{
m_browser_ctrl->SetZoom(wxWEB_VIEW_ZOOM_TINY);
}
else if (evt.GetId() == smallSize->GetId())
{
m_browser_ctrl->SetZoom(wxWEB_VIEW_ZOOM_SMALL);
}
else if (evt.GetId() == mediumSize->GetId())
{
m_browser_ctrl->SetZoom(wxWEB_VIEW_ZOOM_MEDIUM);
}
else if (evt.GetId() == largeSize->GetId())
{
m_browser_ctrl->SetZoom(wxWEB_VIEW_ZOOM_LARGE);
}
else if (evt.GetId() == largestSize->GetId())
{
m_browser_ctrl->SetZoom(wxWEB_VIEW_ZOOM_LARGEST);
}
else
{
wxASSERT(false);
}
}
/*
void onChangeOnlineMode(wxCommandEvent& evt)
{
if (evt.GetId() == offlineMode->GetId())
{
m_browser_ctrl->SetOfflineMode(true);
m_browser_ctrl->SetPage("<html><body><h1>You are now in offline mode.</h1></body></html>");
}
else if (evt.GetId() == onlineMode->GetId())
{
m_browser_ctrl->SetOfflineMode(false);
}
else
{
wxASSERT(false);
}
}
*/
/**
* Callback invoked when a loading error occurs
*/
void onError(wxWebNavigationEvent& evt)
{
wxString errorCategory;
switch (evt.GetInt())
{
case wxWEB_NAV_ERR_CONNECTION:
errorCategory = "wxWEB_NAV_ERR_CONNECTION";
break;
case wxWEB_NAV_ERR_CERTIFICATE:
errorCategory = "wxWEB_NAV_ERR_CERTIFICATE";
break;
case wxWEB_NAV_ERR_AUTH:
errorCategory = "wxWEB_NAV_ERR_AUTH";
break;
case wxWEB_NAV_ERR_SECURITY:
errorCategory = "wxWEB_NAV_ERR_SECURITY";
break;
case wxWEB_NAV_ERR_NOT_FOUND:
errorCategory = "wxWEB_NAV_ERR_NOT_FOUND";
break;
case wxWEB_NAV_ERR_REQUEST:
errorCategory = "wxWEB_NAV_ERR_REQUEST";
break;
case wxWEB_NAV_ERR_USER_CANCELLED:
errorCategory = "wxWEB_NAV_ERR_USER_CANCELLED";
break;
case wxWEB_NAV_ERR_OTHER:
errorCategory = "wxWEB_NAV_ERR_OTHER";
break;
}
wxLogMessage("Error; url='" + evt.GetHref() + "', error='" + errorCategory + "' (" + evt.GetString() + ")");
// show the notification panel
m_notification_text->SetLabel(_("An error occurred loading ") + evt.GetHref() + "\n" +
"'" + errorCategory + "' (" + evt.GetString() + ")");
m_notification_panel->Layout();
m_notification_panel->GetSizer()->SetSizeHints(m_notification_panel);
m_notification_panel->Show();
frame->Layout();
updateState();
}
/**
* Invoked when user clicks "Hide" in the notification panel
*/
void onHideNotifBar(wxCommandEvent& evt)
{
m_notification_panel->Hide();
frame->Layout();
}
void onClose(wxCloseEvent& evt)
{
frame->Destroy();
}
void onQuitMenu(wxCommandEvent& evt)
{
frame->Destroy();
}
/**
* Invoked when user selects "Print" from the menu
*/
void onPrint(wxCommandEvent& evt)
{
m_browser_ctrl->Print();
}
};
IMPLEMENT_APP(wxMiniApp);
bool wxMiniApp::OnInit()
{
m_timer = NULL;
m_animation_angle = 0;
frame = new wxFrame( NULL, -1, _("wxBetterHTMLControl Browser Example"), wxDefaultPosition, wxSize(800, 600) );
// wx has a default mechanism to expand the only control of a frame; but since this mechanism
// does not involve sizers, invoking ->Layout on the frame does not udpate the layout which is
// not good.
wxBoxSizer* expandSizer = new wxBoxSizer(wxHORIZONTAL);
wxPanel* mainpane = new wxPanel(frame, wxID_ANY);
expandSizer->Add(mainpane, 1, wxEXPAND);
frame->SetSizer(expandSizer);
wxLog::SetLogLevel(wxLOG_Max);
logging = new wxLogWindow(frame, _("Logging"));
wxLog::SetLogLevel(wxLOG_Max);
// ---- Create the Tools menu
toolsMenu = new wxMenu();
wxMenuItem* print = toolsMenu->Append(wxID_ANY , _("Print"));
wxMenuItem* viewSource = toolsMenu->Append(wxID_ANY , _("View Source"));
toolsMenu->AppendSeparator();
tinySize = toolsMenu->AppendCheckItem(wxID_ANY, _("Tiny"));
smallSize = toolsMenu->AppendCheckItem(wxID_ANY, _("Small"));
mediumSize = toolsMenu->AppendCheckItem(wxID_ANY, _("Medium"));
largeSize = toolsMenu->AppendCheckItem(wxID_ANY, _("Large"));
largestSize = toolsMenu->AppendCheckItem(wxID_ANY, _("Largest"));
//toolsMenu->AppendSeparator();
//offlineMode = toolsMenu->AppendCheckItem(wxID_ANY, _("Offline Mode"));
//onlineMode = toolsMenu->AppendCheckItem(wxID_ANY, _("Online Mode"));
// ---- Create the Toolbar
m_toolbar = frame->CreateToolBar(/*wxNO_BORDER |*/ wxTB_TEXT);
m_toolbar->SetToolBitmapSize(wxSize(32, 32));
back = m_toolbar->AddTool(wxID_ANY, _("Back"), wxBitmap(back_xpm));
forward = m_toolbar->AddTool(wxID_ANY, _("Forward"), wxBitmap(forward_xpm));
stop = m_toolbar->AddTool(wxID_ANY, _("Stop"), wxBitmap(stop_xpm));
reload = m_toolbar->AddTool(wxID_ANY, _("Reload"), wxBitmap(refresh_xpm));
url = new wxTextCtrl(m_toolbar, wxID_ANY, wxT("http://www.google.com"),
wxDefaultPosition, wxSize(400, -1), wxTE_PROCESS_ENTER );
m_toolbar->AddControl(url, _("URL"));
tools = m_toolbar->AddTool(wxID_ANY, _("Menu"), wxBitmap(wxlogo_xpm));
//m_toolbar->SetDropdownMenu(tools->GetId(), toolsMenu);
m_toolbar->Realize();
m_toolbar->Connect(back->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(wxMiniApp::onBack), NULL, this );
m_toolbar->Connect(forward->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(wxMiniApp::onForward), NULL, this );
m_toolbar->Connect(stop->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(wxMiniApp::onStop), NULL, this );
m_toolbar->Connect(reload->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(wxMiniApp::onReload), NULL, this );
m_toolbar->Connect(tools->GetId(), wxEVT_COMMAND_TOOL_CLICKED,
wxCommandEventHandler(wxMiniApp::onToolsClicked), NULL, this );
url->Connect(url->GetId(), wxEVT_COMMAND_TEXT_ENTER, wxCommandEventHandler(wxMiniApp::onUrl), NULL, this );
frame->Connect(viewSource->GetId(), wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(wxMiniApp::onViewSourceRequest), NULL, this );
frame->Connect(print->GetId(), wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(wxMiniApp::onPrint), NULL, this );
frame->Connect(tinySize->GetId(), wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(wxMiniApp::onSetZoom), NULL, this );
frame->Connect(smallSize->GetId(), wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(wxMiniApp::onSetZoom), NULL, this );
frame->Connect(mediumSize->GetId(), wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(wxMiniApp::onSetZoom), NULL, this );
frame->Connect(largeSize->GetId(), wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(wxMiniApp::onSetZoom), NULL, this );
frame->Connect(largestSize->GetId(), wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(wxMiniApp::onSetZoom), NULL, this );
// ---- Create the web view
m_browser_ctrl = wxWebView::GetNew(mainpane, wxID_ANY);
// ---- Create the notification panel
{
wxBoxSizer* notification_sizer = new wxBoxSizer(wxHORIZONTAL);
m_notification_panel = new wxPanel(mainpane, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxBORDER_SIMPLE);
m_notification_text = new wxStaticText(m_notification_panel, wxID_ANY, "[No message]");
notification_sizer->Add( new wxStaticBitmap(m_notification_panel, wxID_ANY,
wxArtProvider::GetBitmap(wxART_WARNING, wxART_OTHER , wxSize(48, 48))),
0, wxALIGN_CENTER_VERTICAL | wxALL, 5 );
notification_sizer->Add(m_notification_text, 1, wxEXPAND | wxALIGN_CENTER_VERTICAL | wxALL, 5);
wxButton* hideNotif = new wxButton(m_notification_panel, wxID_ANY, _("Hide"));
notification_sizer->Add(hideNotif, 0, wxALIGN_CENTER_VERTICAL | wxALL, 5);
m_notification_panel->SetSizer(notification_sizer);
m_notification_panel->SetBackgroundColour(wxColor(255,225,110));
m_notification_panel->Hide();
hideNotif->Connect(hideNotif->GetId(), wxEVT_COMMAND_BUTTON_CLICKED,
wxCommandEventHandler(wxMiniApp::onHideNotifBar), NULL, this);
}
wxBoxSizer* sizer = new wxBoxSizer(wxVERTICAL);
sizer->Add(m_notification_panel, 0, wxEXPAND | wxALL, 5);
sizer->Add(m_browser_ctrl, 1, wxEXPAND | wxALL, 5);
mainpane->SetSizer(sizer);
frame->Layout();
frame->Center();
frame->Show();
m_browser_ctrl->Connect(m_browser_ctrl->GetId(), wxEVT_COMMAND_WEB_VIEW_NAVIGATING,
wxWebNavigationEventHandler(wxMiniApp::onNavigationRequest), NULL, this);
m_browser_ctrl->Connect(m_browser_ctrl->GetId(), wxEVT_COMMAND_WEB_VIEW_NAVIGATED,
wxWebNavigationEventHandler(wxMiniApp::onNavigationComplete), NULL, this);
m_browser_ctrl->Connect(m_browser_ctrl->GetId(), wxEVT_COMMAND_WEB_VIEW_LOADED,
wxWebNavigationEventHandler(wxMiniApp::onDocumentLoaded), NULL, this);
m_browser_ctrl->Connect(m_browser_ctrl->GetId(), wxEVT_COMMAND_WEB_VIEW_ERROR,
wxWebNavigationEventHandler(wxMiniApp::onError), NULL, this);
frame->Connect(wxEVT_CLOSE_WINDOW, wxCloseEventHandler(wxMiniApp::onClose), NULL, this);
Connect(wxID_EXIT, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(wxMiniApp::onQuitMenu), NULL, this);
// You can test different zoom types (if supported by the backend)
// if (m_browser_ctrl->CanSetZoomType(wxWEB_VIEW_ZOOM_TYPE_LAYOUT))
// m_browser_ctrl->SetZoomType(wxWEB_VIEW_ZOOM_TYPE_LAYOUT);
SetTopWindow(frame);
frame->Layout();
return true;
}