// Purpose: Common interface and events for web view component
// Author: Marianne Gagnon
// Id: $Id$
-// Copyright: (c) 2010 Marianne Gagnon
+// Copyright: (c) 2010 Marianne Gagnon, 2011 Steven Lamerton
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WEB_VIEW_H_
#define _WX_WEB_VIEW_H_
-#include <wx/control.h>
-#include <wx/event.h>
-#include <wx/sstream.h>
+#include "wx/defs.h"
+
+#if wxUSE_WEBVIEW
+
+#include "wx/control.h"
+#include "wx/event.h"
+#include "wx/sstream.h"
+#include "wx/sharedptr.h"
+#include "wx/vector.h"
+
+#if defined(__WXOSX__)
+ #include "wx/osx/webviewhistoryitem_webkit.h"
+#elif defined(__WXGTK__)
+ #include "wx/gtk/webviewhistoryitem_webkit.h"
+#elif defined(__WXMSW__)
+ #include "wx/msw/webviewhistoryitem_ie.h"
+#else
+ #error "wxWebView not implemented on this platform."
+#endif
+
+class wxFSFile;
+class wxFileSystem;
-/**
- * Zoom level in web view component
- */
enum wxWebViewZoom
{
wxWEB_VIEW_ZOOM_TINY,
wxWEB_VIEW_ZOOM_LARGEST
};
-/**
- * The type of zooming that the web view control can perform
- */
enum wxWebViewZoomType
{
- /** The entire layout scales when zooming, including images */
+ //Scales entire page, including images
wxWEB_VIEW_ZOOM_TYPE_LAYOUT,
- /** Only the text changes in size when zooming, images and other layout
- * elements retain their initial size */
wxWEB_VIEW_ZOOM_TYPE_TEXT
};
-/** Types of errors that can cause navigation to fail */
-enum wxWebNavigationError
+enum wxWebViewNavigationError
{
- /** Connection error (timeout, etc.) */
- wxWEB_NAV_ERR_CONNECTION = 1,
- /** Invalid certificate */
- wxWEB_NAV_ERR_CERTIFICATE = 2,
- /** Authentication required */
- wxWEB_NAV_ERR_AUTH = 3,
- /** Other security error */
- wxWEB_NAV_ERR_SECURITY = 4,
- /** Requested resource not found */
- wxWEB_NAV_ERR_NOT_FOUND = 5,
- /** Invalid request/parameters (e.g. bad URL, bad protocol,
- * unsupported resource type) */
- wxWEB_NAV_ERR_REQUEST = 6,
- /** The user cancelled (e.g. in a dialog) */
- wxWEB_NAV_ERR_USER_CANCELLED = 7,
- /** Another (exotic) type of error that didn't fit in other categories*/
- wxWEB_NAV_ERR_OTHER = 8
+ wxWEB_NAV_ERR_CONNECTION,
+ wxWEB_NAV_ERR_CERTIFICATE,
+ wxWEB_NAV_ERR_AUTH,
+ wxWEB_NAV_ERR_SECURITY,
+ wxWEB_NAV_ERR_NOT_FOUND,
+ wxWEB_NAV_ERR_REQUEST,
+ wxWEB_NAV_ERR_USER_CANCELLED,
+ wxWEB_NAV_ERR_OTHER
};
-/** Type of refresh */
enum wxWebViewReloadFlags
{
- /** Default reload, will access cache */
- wxWEB_VIEW_RELOAD_DEFAULT = 0,
- /** Reload the current view without accessing the cache */
- wxWEB_VIEW_RELOAD_NO_CACHE = 1
+ //Default, may access cache
+ wxWEB_VIEW_RELOAD_DEFAULT,
+ wxWEB_VIEW_RELOAD_NO_CACHE
};
-
-/**
- * List of available backends for wxWebView
- */
enum wxWebViewBackend
{
- /** Value that may be passed to wxWebView to let it pick an appropriate
- * engine for the current platform*/
wxWEB_VIEW_BACKEND_DEFAULT,
-
- /** The OSX-native WebKit web engine */
- wxWEB_VIEW_BACKEND_OSX_WEBKIT,
-
- /** The GTK port of the WebKit engine */
- wxWEB_VIEW_BACKEND_GTK_WEBKIT,
-
- /** Use Microsoft Internet Explorer as web engine */
+ wxWEB_VIEW_BACKEND_WEBKIT,
wxWEB_VIEW_BACKEND_IE
};
-extern WXDLLIMPEXP_DATA_CORE(const char) wxWebViewNameStr[];
-extern WXDLLIMPEXP_DATA_CORE(const char) wxWebViewDefaultURLStr[];
-
-/**
- * @class wxWebView
- *
- * This control may be used to render web (HTML / CSS / javascript) documents.
- * Capabilities of the HTML renderer will depend upon the backed.
- * TODO: describe each backend and its capabilities here
- *
- * Note that errors are generally reported asynchronously though the
- * wxEVT_COMMAND_WEB_VIEW_ERROR event described below.
- *
- * @beginEventEmissionTable{wxWebNavigationEvent}
- * @event{EVT_BUTTON(id, func)}
- *
- * @event{EVT_WEB_VIEW_NAVIGATING(id, func)}
- * Process a wxEVT_COMMAND_WEB_VIEW_NAVIGATING event, generated before trying
- * to get a resource. This event may be vetoed to prevent navigating to this
- * resource. Note that if the displayed HTML document has several frames, one
- * such event will be generated per frame.
- *
- * @event{EVT_WEB_VIEW_NAVIGATED(id, func)}
- * Process a wxEVT_COMMAND_WEB_VIEW_NAVIGATED event generated after it was
- * confirmed that a resource would be requested. This event may not be vetoed.
- * Note that if the displayed HTML document has several frames, one such event
- * will be generated per frame.
- *
- * @event{EVT_WEB_VIEW_LOADED(id, func)}
- * Process a wxEVT_COMMAND_WEB_VIEW_LOADED event generated when the document
- * is fully loaded and displayed.
- *
- * @event{EVT_WEB_VIEW_ERRROR(id, func)}
- * Process a wxEVT_COMMAND_WEB_VIEW_ERROR event generated when a navigation
- * error occurs.
- * The integer associated with this event will be a wxWebNavigationError item.
- * The string associated with this event may contain a backend-specific more
- * precise error message/code.
- *
- * @endEventTable
- */
-class wxWebView : public wxControl
+//Base class for custom scheme handlers
+class WXDLLIMPEXP_WEBVIEW wxWebViewHandler
{
public:
+ wxWebViewHandler(const wxString& scheme) : m_scheme(scheme) {}
+ virtual ~wxWebViewHandler() {}
+ virtual wxString GetName() const { return m_scheme; }
+ virtual wxFSFile* GetFile(const wxString &uri) = 0;
+private:
+ wxString m_scheme;
+};
+
+extern WXDLLIMPEXP_DATA_WEBVIEW(const char) wxWebViewNameStr[];
+extern WXDLLIMPEXP_DATA_WEBVIEW(const char) wxWebViewDefaultURLStr[];
+
+class WXDLLIMPEXP_WEBVIEW wxWebView : public wxControl
+{
+public:
+ virtual ~wxWebView() {}
- /**
- * Creation function for two-step creation.
- */
virtual bool Create(wxWindow* parent,
wxWindowID id,
- const wxString& url,
- const wxPoint& pos,
- const wxSize& size,
- long style,
- const wxString& name) = 0;
-
- /**
- * Factory function to create a new wxWebView for two-step creation
- * (you need to call wxWebView::Create on the returned object)
- * @param backend which web engine to use as backend for wxWebView
- * @return the created wxWebView, or NULL if the requested backend is
- * not available
- */
- static wxWebView* New(wxWebViewBackend backend = wxWEB_VIEW_BACKEND_DEFAULT);
+ const wxString& url = wxWebViewDefaultURLStr,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style = 0,
+ const wxString& name = wxWebViewNameStr) = 0;
- // TODO: clarify what styles can do, or remove this flag
- /**
- * Factory function to create a new wxWebView
- * @param parent parent window to create this view in
- * @param id ID of this control
- * @param url URL to load by default in the web view
- * @param pos position to create this control at
- * (you may use wxDefaultPosition if you use sizers)
- * @param size size to create this control with
- * (you may use wxDefaultSize if you use sizers)
- * @param backend which web engine to use as backend for wxWebView
- * @return the created wxWebView, or NULL if the requested backend
- * is not available
- */
+ static wxWebView* New(wxWebViewBackend backend = wxWEB_VIEW_BACKEND_DEFAULT);
static wxWebView* New(wxWindow* parent,
wxWindowID id,
const wxString& url = wxWebViewDefaultURLStr,
long style = 0,
const wxString& name = wxWebViewNameStr);
-
- /** Get whether it is possible to navigate back in the history of
- * visited pages
- */
- virtual bool CanGoBack() = 0;
-
- /** Get whether it is possible to navigate forward in the history of
- * visited pages
- */
- virtual bool CanGoForward() = 0;
-
- /** Navigate back in the history of visited pages.
- * Only valid if CanGoBack() returned true.
- */
- virtual void GoBack() = 0;
-
- /** Navigate forwardin the history of visited pages.
- * Only valid if CanGoForward() returned true.
- */
- virtual void GoForward() = 0;
-
- /**
- * Load a HTMl document (web page) from a URL
- * @param url the URL where the HTML document to display can be found
- * @note web engines generally report errors asynchronously, so if you wish
- * to know whether loading the URL was successful, register to receive
- * navigation error events
- */
- virtual void LoadUrl(const wxString& url) = 0;
-
- /**
- * Stop the current page loading process, if any.
- * May trigger an error event of type wxWEB_NAV_ERR_USER_CANCELLED.
- * TODO: make wxWEB_NAV_ERR_USER_CANCELLED errors uniform across ports.
- */
- virtual void Stop() = 0;
-
- /**
- * Reload the currently displayed URL.
- * @param flags A bit array that may optionnally contain reload options
- */
- virtual void Reload(wxWebViewReloadFlags flags = wxWEB_VIEW_RELOAD_DEFAULT) = 0;
-
-
- /**
- * Get the URL of the currently displayed document
- */
- virtual wxString GetCurrentURL() = 0;
-
- /**
- * Get the title of the current web page, or its URL/path if title is not
- * available
- */
- virtual wxString GetCurrentTitle() = 0;
-
+ //General methods
+ virtual wxString GetCurrentTitle() const = 0;
+ virtual wxString GetCurrentURL() const = 0;
// TODO: handle choosing a frame when calling GetPageSource()?
- /**
- * Get the HTML source code of the currently displayed document
- * @return the HTML source code, or an empty string if no page is currently
- * shown
- */
- virtual wxString GetPageSource() = 0;
-
- /**
- * Get the zoom factor of the page
- * @return How much the HTML document is zoomed (scaleed)
- */
- virtual wxWebViewZoom GetZoom() = 0;
-
- /**
- * Set the zoom factor of the page
- * @param zoom How much to zoom (scale) the HTML document
- */
- virtual void SetZoom(wxWebViewZoom zoom) = 0;
-
- /**
- * Set how to interpret the zoom factor
- * @param zoomType how the zoom factor should be interpreted by the
- * HTML engine
- * @note invoke canSetZoomType() first, some HTML renderers may not
- * support all zoom types
- */
- virtual void SetZoomType(wxWebViewZoomType zoomType) = 0;
-
- /**
- * Get how the zoom factor is currently interpreted
- * @return how the zoom factor is currently interpreted by the HTML engine
- */
- virtual wxWebViewZoomType GetZoomType() const = 0;
-
- /**
- * Retrieve whether the current HTML engine supports a type of zoom
- * @param type the type of zoom to test
- * @return whether this type of zoom is supported by this HTML engine
- * (and thus can be set through setZoomType())
- */
- virtual bool CanSetZoomType(wxWebViewZoomType type) const = 0;
-
- // TODO: allow 'SetPage' to find files (e.g. images) from a virtual file
- // system if possible
- /**
- * Set the displayed page source to the contents of the given string
- * @param html the string that contains the HTML data to display
- * @param baseUrl URL assigned to the HTML data, to be used to resolve
- * relative paths, for instance
- */
+ virtual wxString GetPageSource() const = 0;
+ virtual wxString GetPageText() const = 0;
+ virtual bool IsBusy() const = 0;
+ virtual bool IsEditable() const = 0;
+ virtual void LoadURL(const wxString& url) = 0;
+ virtual void Print() = 0;
+ virtual void RegisterHandler(wxSharedPtr<wxWebViewHandler> handler) = 0;
+ virtual void Reload(wxWebViewReloadFlags flags = wxWEB_VIEW_RELOAD_DEFAULT) = 0;
+ virtual void RunScript(const wxString& javascript) = 0;
+ virtual void SetEditable(bool enable = true) = 0;
virtual void SetPage(const wxString& html, const wxString& baseUrl) = 0;
-
- /**
- * Set the displayed page source to the contents of the given stream
- * @param html the stream to read HTML data from
- * @param baseUrl URL assigned to the HTML data, to be used to resolve
- * relative paths, for instance
- */
virtual void SetPage(wxInputStream& html, wxString baseUrl)
{
wxStringOutputStream stream;
stream.Write(html);
SetPage(stream.GetString(), baseUrl);
}
+ virtual void Stop() = 0;
- // TODO:
- // wxString GetSelection(); // maybe?
- // void SetSelection(...); // maybe?
-
- // void MakeEditable(bool enable = true); // maybe?
- // bool IsEditable(); // maybe?
-
- // void EnableJavascript(bool enabled); // maybe?
- // wxString RunScript(const wxString& javascript); // maybe?
-
- // void SetScrollPos(int pos); // maybe?
- // int GetScrollPos(); // maybe?
-
- // wxString GetStatusText(); // maybe?
- // void SetStatusText(wxString text); // maybe?
- // * status text changed event?
- // * title changed event?
-
- // virtual bool IsOfflineMode() = 0; // maybe?
- // virtual void SetOfflineMode(bool offline) = 0; // maybe?
-
- // TODO: offer API to control the opening of new frames
- // (through <a target="..."> as well as through javascript), OR
- // provide a behavior consistent across ports.
- // - OSX : I receive an event for new frames opened with HTML target, and
- // currently block them all.
- // - IE : The DISPID_NEWWINDOW2 event looks like it should work, but I
- // receive way too many of them. A new IE instance opens.
- // - GTK : All frame open requests are blocked. A slot exists that I could
- // connect to to be notified if ever needed
-
- /**
- * Opens a print dialog so that the user may print the currently
- * displayed page.
- */
- virtual void Print() = 0;
-
- /**
- * Returns whether the web control is currently busy (e.g. loading a page)
- */
- virtual bool IsBusy() = 0;
-};
-
-//class WXDLLIMPEXP_FWD_HTML wxWebNavigationEvent;
+ //History
+ virtual bool CanGoBack() const = 0;
+ virtual bool CanGoForward() const = 0;
+ virtual void GoBack() = 0;
+ virtual void GoForward() = 0;
+ virtual void ClearHistory() = 0;
+ virtual void EnableHistory(bool enable = true) = 0;
+ virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetBackwardHistory() = 0;
+ virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetForwardHistory() = 0;
+ virtual void LoadHistoryItem(wxSharedPtr<wxWebViewHistoryItem> item) = 0;
-// FIXME: get those WXDLLIMPEXP_HTML & DECLARE_DYNAMIC_CLASS right...
-//wxDECLARE_EXPORTED_EVENT(WXDLLIMPEXP_HTML, wxEVT_COMMAND_WEB_VIEW_NAVIGATE,
-// wxWebNavigationEvent );
+ //Zoom
+ virtual bool CanSetZoomType(wxWebViewZoomType type) const = 0;
+ virtual wxWebViewZoom GetZoom() const = 0;
+ virtual wxWebViewZoomType GetZoomType() const = 0;
+ virtual void SetZoom(wxWebViewZoom zoom) = 0;
+ virtual void SetZoomType(wxWebViewZoomType zoomType) = 0;
+ //Selection
+ virtual void SelectAll() = 0;
+ virtual bool HasSelection() const = 0;
+ virtual void DeleteSelection() = 0;
+ virtual wxString GetSelectedText() const = 0;
+ virtual wxString GetSelectedSource() const = 0;
+ virtual void ClearSelection() = 0;
+
+ //Clipboard functions
+ virtual bool CanCut() const = 0;
+ virtual bool CanCopy() const = 0;
+ virtual bool CanPaste() const = 0;
+ virtual void Cut() = 0;
+ virtual void Copy() = 0;
+ virtual void Paste() = 0;
+
+ //Undo / redo functionality
+ virtual bool CanUndo() const = 0;
+ virtual bool CanRedo() const = 0;
+ virtual void Undo() = 0;
+ virtual void Redo() = 0;
+
+ wxDECLARE_ABSTRACT_CLASS(wxWebView);
+};
-// FIXME: get those WXDLLIMPEXP_HTML & DECLARE_DYNAMIC_CLASS right...
-class wxWebNavigationEvent : public wxCommandEvent
+class WXDLLIMPEXP_WEBVIEW wxWebViewEvent : public wxNotifyEvent
{
public:
- wxWebNavigationEvent() {}
- wxWebNavigationEvent(wxEventType type, int id, const wxString href,
- const wxString target, bool canVeto)
- : wxCommandEvent(type, id)
- {
- m_href = href;
- m_target = target;
- m_vetoed = false;
- m_canVeto = canVeto;
- }
+ wxWebViewEvent() {}
+ wxWebViewEvent(wxEventType type, int id, const wxString url,
+ const wxString target)
+ : wxNotifyEvent(type, id), m_url(url), m_target(target)
+ {}
- /**
- * Get the URL being visited
- */
- const wxString& GetHref() const { return m_href; }
- /**
- * Get the target (frame or window) in which the URL that caused this event
- * is viewed, or an empty string if not available.
- */
+ const wxString& GetURL() const { return m_url; }
const wxString& GetTarget() const { return m_target; }
- // default copy ctor, assignment operator and dtor are ok
- virtual wxEvent* Clone() const { return new wxWebNavigationEvent(*this); }
-
- /** Get whether this event may be vetoed (stopped/prevented). Only
- * meaningful for events fired before navigation takes place.
- */
- bool CanVeto() const { return m_canVeto; }
-
- /** Whether this event was vetoed (stopped/prevented). Only meaningful for
- * events fired before navigation takes place.
- */
- bool IsVetoed() const { return m_vetoed; }
-
- /** Veto (prevent/stop) this event. Only meaningful for events fired
- * before navigation takes place. Only valid if CanVeto() returned true.
- */
- void Veto() { wxASSERT(m_canVeto); m_vetoed = true; }
-
+ virtual wxEvent* Clone() const { return new wxWebViewEvent(*this); }
private:
- wxString m_href;
+ wxString m_url;
wxString m_target;
- bool m_canVeto;
- bool m_vetoed;
- wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxWebNavigationEvent);
+ wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxWebViewEvent);
};
-wxDECLARE_EVENT( wxEVT_COMMAND_WEB_VIEW_NAVIGATING, wxWebNavigationEvent );
-wxDECLARE_EVENT( wxEVT_COMMAND_WEB_VIEW_NAVIGATED, wxWebNavigationEvent );
-wxDECLARE_EVENT( wxEVT_COMMAND_WEB_VIEW_LOADED, wxWebNavigationEvent );
-wxDECLARE_EVENT( wxEVT_COMMAND_WEB_VIEW_ERROR, wxWebNavigationEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_NAVIGATING, wxWebViewEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_NAVIGATED, wxWebViewEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_LOADED, wxWebViewEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_ERROR, wxWebViewEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_NEWWINDOW, wxWebViewEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED, wxWebViewEvent );
-typedef void (wxEvtHandler::*wxWebNavigationEventFunction)
- (wxWebNavigationEvent&);
+typedef void (wxEvtHandler::*wxWebViewEventFunction)
+ (wxWebViewEvent&);
-#define wxWebNavigationEventHandler(func) \
- wxEVENT_HANDLER_CAST(wxWebNavigationEventFunction, func)
+#define wxWebViewEventHandler(func) \
+ wxEVENT_HANDLER_CAST(wxWebViewEventFunction, func)
#define EVT_WEB_VIEW_NAVIGATING(id, fn) \
wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_NAVIGATING, id, \
- wxHtmlNavigatingEventHandler(fn))
+ wxWebViewEventHandler(fn))
#define EVT_WEB_VIEW_NAVIGATED(id, fn) \
wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_NAVIGATED, id, \
- wxHtmlNavigatingEventHandler(fn))
+ wxWebViewEventHandler(fn))
#define EVT_WEB_VIEW_LOADED(id, fn) \
wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_LOADED, id, \
- wxHtmlNavigatingEventHandler(fn))
+ wxWebViewEventHandler(fn))
-#define EVT_WEB_VIEW_ERRROR(id, fn) \
+#define EVT_WEB_VIEW_ERROR(id, fn) \
wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_ERROR, id, \
- wxHtmlNavigatingEventHandler(fn))
+ wxWebViewEventHandler(fn))
-#endif
+#define EVT_WEB_VIEW_NEWWINDOW(id, fn) \
+ wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_NEWWINDOW, id, \
+ wxWebViewEventHandler(fn))
+
+#define EVT_WEB_VIEW_TITLE_CHANGED(id, fn) \
+ wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED, id, \
+ wxWebViewEventHandler(fn))
+
+#endif // wxUSE_WEBVIEW
+
+#endif // _WX_WEB_VIEW_H_
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