X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c36818c8e32dd4245222f62995119d8652b30324..ca282726be518ce2f214b890dbaafce736f14e36:/interface/wx/webview.h?ds=sidebyside diff --git a/interface/wx/webview.h b/interface/wx/webview.h index 2ce2f28cf9..837a74a9c1 100644 --- a/interface/wx/webview.h +++ b/interface/wx/webview.h @@ -7,7 +7,7 @@ ///////////////////////////////////////////////////////////////////////////// /** - Zoom levels availiable in wxWebView + Zoom levels available in wxWebView */ enum wxWebViewZoom { @@ -23,21 +23,21 @@ enum wxWebViewZoom */ enum wxWebViewZoomType { - /** - The entire layout scales when zooming, including images + /** + The entire layout scales when zooming, including images */ wxWEB_VIEW_ZOOM_TYPE_LAYOUT, - /** + /** Only the text changes in size when zooming, images and other layout - elements retain their initial size + 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, @@ -58,17 +58,40 @@ enum wxWebNavigationError wxWEB_NAV_ERR_OTHER }; -/** - Type of refresh +/** + Type of refresh */ enum wxWebViewReloadFlags { /** Default reload, will access cache */ wxWEB_VIEW_RELOAD_DEFAULT, /** Reload the current view without accessing the cache */ - wxWEB_VIEW_RELOAD_NO_CACHE + wxWEB_VIEW_RELOAD_NO_CACHE }; +/** + Find flags used when searching for text on page. +*/ +enum wxWebViewFindFlags +{ + /** Causes the search to restart when end or beginning reached */ + wxWEB_VIEW_FIND_WRAP = 0x0001, + + /** Matches an entire word when searching */ + wxWEB_VIEW_FIND_ENTIRE_WORD = 0x0002, + + /** Match case, i.e. case sensitive searching */ + wxWEB_VIEW_FIND_MATCH_CASE = 0x0004, + + /** Highlights the search results */ + wxWEB_VIEW_FIND_HIGHLIGHT_RESULT = 0x0008, + + /** Searches for phrase in backward direction */ + wxWEB_VIEW_FIND_BACKWARDS = 0x0010, + + /** The default flag, which is simple searching */ + wxWEB_VIEW_FIND_DEFAULT = 0 +}; /** * List of available backends for wxWebView @@ -79,63 +102,144 @@ enum wxWebViewBackend * 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, + /** The WebKit web engine */ + wxWEB_VIEW_BACKEND_WEBKIT, /** Use Microsoft Internet Explorer as web engine */ wxWEB_VIEW_BACKEND_IE }; /** - @class wxWebHistoryItem - + @class wxWebViewHistoryItem + A simple class that contains the URL and title of an element of the history - of a wxWebView. - - @library{wxweb} - @category{web} - + of a wxWebView. + + @since 2.9.3 + @library{wxwebview} + @category{webview} + @see wxWebView */ -class wxWebHistoryItem +class wxWebViewHistoryItem { public: /** Construtor. */ - wxWebHistoryItem(const wxString& url, const wxString& title); - + wxWebViewHistoryItem(const wxString& url, const wxString& title); + /** @return The url of the page. */ wxString GetUrl(); - + /** @return The title of the page. */ wxString GetTitle(); }; +/** + @class wxWebViewHandler + + The base class for handling custom schemes in wxWebView, for example to + allow virtual file system support. + + @since 2.9.3 + @library{wxwebview} + @category{webview} + + @see wxWebView + */ +class wxWebViewHandler +{ +public: + /** + Constructor. Takes the name of the scheme that will be handled by this + class for example @c file or @c zip. + */ + wxWebViewHandler(const wxString& scheme); + + /** + @return A pointer to the file represented by @c uri. + */ + virtual wxFSFile* GetFile(const wxString &uri) = 0; + + /** + @return The name of the scheme, as passed to the constructor. + */ + virtual wxString GetName() const; +}; + /** @class wxWebView - - This control may be used to render web (HTML / CSS / javascript) documents. - Capabilities of the HTML renderer will depend upon the backed. - @c wxWEB_VIEW_BACKEND_IE uses the the Trident rendering engine, which - is also used by Internet Explorer. It is important to note that by default - it emulates Internet Explorer 7, this can be chaged with a registry - setting, see + This control may be used to render web (HTML / CSS / javascript) documents. + It is designed to allow the creation of multiple backends for each port, + although currently just one is available. It differs from wxHtmlWindow in + that each backend is actually a full rendering engine, Trident on MSW and + Webkit on OSX and GTK. This allows the correct viewing complex pages with + javascript and css. + + @section descriptions Backend Descriptions + + @par wxWEB_VIEW_BACKEND_IE (MSW) + + The IE backend uses Microsoft's Trident rendering engine, specifically the + version used by the locally installed copy of Internet Explorer. As such it + is only available for the MSW port. By default recent versions of the + WebBrowser + control, which this backend uses, emulate Internet Explorer 7. This can be + changed with a registry setting, see - this article for more information. - - Note that errors are generally reported asynchronously though the - @c wxEVT_COMMAND_WEB_VIEW_ERROR event described below. - - @beginEventEmissionTable{wxWebNavigationEvent} + this article for more information. This backend has full support for + custom schemes and virtual file systems. + + @par wxWEB_VIEW_WEBKIT (GTK) + + Under GTK the WebKit backend uses + WebKitGTK+. The current minimum version + required is 1.3.1 which ships by default with Ubuntu Natty and Debian + Wheezy and has the package name libwebkitgtk-dev. Custom schemes and + virtual files systems are supported under this backend, however embedded + resources such as images and stylesheets are currently loaded using the + data:// scheme. + + @par wxWEB_VIEW_WEBKIT (OSX) + + The OSX WebKit backend uses Apple's + WebView + class. This backend has full support for custom schemes and virtual file + systems. + + @section async Asynchronous Notifications + + Many of the methods in wxWebView are asynchronous, i.e. they return + immediately and perform their work in the background. This includes + functions such as LoadUrl() and Reload(). To receive notification of the + progress and completion of these functions you need to handle the events + that are provided. Specifically @c wxEVT_COMMAND_WEB_VIEW_LOADED notifies + when the page or a sub-frame has finished loading and + @c wxEVT_COMMAND_WEB_VIEW_ERROR notifies that an error has occurred. + + @section vfs Virtual File Systems and Custom Schemes + + wxWebView supports the registering of custom scheme handlers, for example + @c file or @c http. To do this create a new class which inherits from + wxWebViewHandler, where wxWebHandler::GetFile() returns a pointer to a + wxFSFile which represents the given url. You can then register your handler + with RegisterHandler() it will be called for all pages and resources. + + wxWebViewFSHandler is provided to access the virtual file system encapsulated by + wxFileSystem. The wxMemoryFSHandler documentation gives an example of how this + may be used. + + wxWebViewArchiveHandler is provided to allow the navigation of pages inside a zip + archive. It supports paths of the form: + @c scheme:///C:/example/docs.zip;protocol=zip/main.htm + + @beginEventEmissionTable{wxWebViewEvent} @event{EVT_WEB_VIEW_NAVIGATING(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_NAVIGATING event, generated before trying to get a resource. This event may be vetoed to prevent navigating to this @@ -148,8 +252,9 @@ public: will be generated per frame. @event{EVT_WEB_VIEW_LOADED(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_LOADED event generated when the document - is fully loaded and displayed. - @event{EVT_WEB_VIEW_ERRROR(id, func)} + is fully loaded and displayed. Note that if the displayed HTML document has + several frames, one such event will be generated per frame. + @event{EVT_WEB_VIEW_ERROR(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_ERROR event generated when a navigation error occurs. The integer associated with this event will be a wxWebNavigationError item. @@ -157,12 +262,17 @@ public: precise error message/code. @event{EVT_WEB_VIEW_NEWWINDOW(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_NEWWINDOW event, generated when a new - window is created. This event may be vetoed to prevent a new window showing, - for example if you want to open the url in the existing window or a new tab. + window is created. You must handle this event if you want anything to + happen, for example to load the page in a new window or tab. + @event{EVT_WEB_VIEW_TITLE_CHANGED(id, func)} + Process a @c wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED event, generated when + the page title changes. Use GetString to get the title. @endEventTable - - @library{wxweb} - @category{ctrl,web} + + @since 2.9.3 + @library{wxwebview} + @category{ctrl,webview} + @see wxWebViewHandler, wxWebViewEvent */ class wxWebView : public wxControl { @@ -173,11 +283,11 @@ public: */ virtual bool Create(wxWindow* parent, wxWindowID id, - const wxString& url, - const wxPoint& pos, - const wxSize& size, - long style, - const wxString& name) = 0; + const wxString& url = wxWebViewDefaultURLStr, + const wxPoint& pos = wxDefaultPosition, + const wxSize& size = wxDefaultSize, + long style = 0, + const wxString& name = wxWebViewNameStr) = 0; /** Factory function to create a new wxWebView for two-step creation @@ -214,24 +324,62 @@ public: Get the title of the current web page, or its URL/path if title is not available. */ - virtual wxString GetCurrentTitle() = 0; + virtual wxString GetCurrentTitle() const = 0; /** Get the URL of the currently displayed document. */ - virtual wxString GetCurrentURL() = 0; + virtual wxString GetCurrentURL() const = 0; + + /** + Return the pointer to the native backend used by this control. + + This method can be used to retrieve the pointer to the native rendering + engine used by this control. The return value needs to be down-casted + to the appropriate type depending on the platform: under Windows, it's + a pointer to IWebBrowser2 interface, under OS X it's a WebView pointer + and under GTK it's a WebKitWebView. + + For example, you could set the WebKit options using this method: + @code + #include + + #ifdef __WXGTK__ + WebKitWebView* + wv = static_cast(m_window->GetNativeBackend()); + + WebKitWebSettings* settings = webkit_web_view_get_settings(wv); + g_object_set(G_OBJECT(settings), + "enable-frame-flattening", TRUE, + NULL); + #endif + @endcode + + @since 2.9.5 + */ + virtual void* GetNativeBackend() const = 0; /** 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; - + virtual wxString GetPageSource() const = 0; + + /** + Get the text of the current page. + */ + virtual wxString GetPageText() const = 0; + /** Returns whether the web control is currently busy (e.g. loading a page). */ - virtual bool IsBusy() = 0; + virtual bool IsBusy() const = 0; + + /** + Returns whether the web control is currently editable + */ + virtual bool IsEditable() const = 0; /** Load a web page from a URL @@ -240,7 +388,7 @@ public: to know whether loading the URL was successful, register to receive navigation error events. */ - virtual void LoadUrl(const wxString& url) = 0; + virtual void LoadURL(const wxString& url) = 0; /** Opens a print dialog so that the user may print the currently @@ -248,12 +396,30 @@ public: */ virtual void Print() = 0; + /** + Registers a custom scheme handler. + @param handler A shared pointer to a wxWebHandler. + */ + virtual void RegisterHandler(wxSharedPtr handler) = 0; + /** Reload the currently displayed URL. @param flags A bit array that may optionally contain reload options. */ virtual void Reload(wxWebViewReloadFlags flags = wxWEB_VIEW_RELOAD_DEFAULT) = 0; + /** + Runs the given javascript code. + */ + virtual void RunScript(const wxString& javascript) = 0; + + /** + Set the editable property of the web control. Enabling allows the user + to edit the page even if the @c contenteditable attribute is not set. + The exact capabilities vary with the backend being used. + */ + virtual void SetEditable(bool enable = true) = 0; + /** Set the displayed page source to the contents of the given string. @param html The string that contains the HTML data to display. @@ -268,12 +434,7 @@ public: @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 SetPage(wxInputStream& html, wxString baseUrl); /** Stop the current page loading process, if any. @@ -288,21 +449,27 @@ public: /** Returns @true if the current selection can be copied. + + @note This always returns @c true on the OSX WebKit backend. */ - virtual bool CanCopy() = 0; + virtual bool CanCopy() const = 0; /** Returns @true if the current selection can be cut. + + @note This always returns @c true on the OSX WebKit backend. */ - virtual bool CanCut() = 0; + virtual bool CanCut() const = 0; /** Returns @true if data can be pasted. + + @note This always returns @c true on the OSX WebKit backend. */ - virtual bool CanPaste() = 0; + virtual bool CanPaste() const = 0; /** - Copies the current selection. + Copies the current selection. */ virtual void Copy() = 0; @@ -320,17 +487,17 @@ public: @name History */ - /** + /** Returns @true if it is possible to navigate backward in the history of visited pages. */ - virtual bool CanGoBack() = 0; + virtual bool CanGoBack() const = 0; - /** + /** Returns @true if it is possible to navigate forward in the history of visited pages. */ - virtual bool CanGoForward() = 0; + virtual bool CanGoForward() const = 0; /** Clear the history, this will also remove the visible page. @@ -346,16 +513,16 @@ public: Returns a list of items in the back history. The first item in the vector is the first page that was loaded by the control. */ - virtual wxVector > GetBackwardHistory() = 0; + virtual wxVector > GetBackwardHistory() = 0; /** - Returns a list of items in the forward history. The first item in the - vector is the next item in the history with respect to the curently + Returns a list of items in the forward history. The first item in the + vector is the next item in the history with respect to the curently loaded page. */ - virtual wxVector > GetForwardHistory() = 0; + virtual wxVector > GetForwardHistory() = 0; - /** + /** Navigate back in the history of visited pages. Only valid if CanGoBack() returns true. */ @@ -368,9 +535,45 @@ public: virtual void GoForward() = 0; /** - Loads a history item. + Loads a history item. + */ + virtual void LoadHistoryItem(wxSharedPtr item) = 0; + + /** + @name Selection + */ + + /** + Clears the current selection. + */ + virtual void ClearSelection() = 0; + + /** + Deletes the current selection. Note that for @c wxWEB_VIEW_BACKEND_WEBKIT + the selection must be editable, either through SetEditable or the + correct HTML attribute. */ - virtual void LoadHistoryItem(wxSharedPtr item) = 0; + virtual void DeleteSelection() = 0; + + /** + Returns the currently selected source, if any. + */ + virtual wxString GetSelectedSource() const = 0; + + /** + Returns the currently selected text, if any. + */ + virtual wxString GetSelectedText() const = 0; + + /** + Returns @true if there is a current selection. + */ + virtual bool HasSelection() const = 0; + + /** + Selects the entire page. + */ + virtual void SelectAll() = 0; /** @name Undo / Redo @@ -379,12 +582,12 @@ public: /** Returns @true if there is an action to redo. */ - virtual bool CanRedo() = 0; + virtual bool CanRedo() const = 0; /** Returns @true if there is an action to undo. */ - virtual bool CanUndo() = 0; + virtual bool CanUndo() const = 0; /** Redos the last action. @@ -396,6 +599,30 @@ public: */ virtual void Undo() = 0; + /** + @name Finding + */ + + /** + Finds a phrase on the current page and if found, the control will + scroll the phrase into view and select it. + @param text The phrase to search for. + @param flags The flags for the search. + @return If search phrase was not found in combination with the flags + then @c wxNOT_FOUND is returned. If called for the first time + with search phrase then the total number of results will be + returned. Then for every time its called with the same search + phrase it will return the number of the current match. + @note This function will restart the search if the flags + @c wxWEB_VIEW_FIND_ENTIRE_WORD or @c wxWEB_VIEW_FIND_MATCH_CASE + are changed, since this will require a new search. To reset the + search, for example reseting the highlights call the function + with an empty search phrase. This always returns @c wxNOT_FOUND + on the OSX WebKit backend. + @since 2.9.5 + */ + virtual long Find(const wxString& text, wxWebViewFindFlags flags = wxWEB_VIEW_FIND_DEFAULT) = 0; + /** @name Zoom */ @@ -412,7 +639,7 @@ public: Get the zoom factor of the page. @return The current level of zoom. */ - virtual wxWebViewZoom GetZoom() = 0; + virtual wxWebViewZoom GetZoom() const = 0; /** Get how the zoom factor is currently interpreted. @@ -440,12 +667,12 @@ public: /** - @class wxWebNavigationEvent + @class wxWebViewEvent - A navigation event holds information about events associated with + A navigation event holds information about events associated with wxWebView objects. - @beginEventEmissionTable{wxWebNavigationEvent} + @beginEventEmissionTable{wxWebViewEvent} @event{EVT_WEB_VIEW_NAVIGATING(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_NAVIGATING event, generated before trying to get a resource. This event may be vetoed to prevent navigating to this @@ -458,8 +685,9 @@ public: will be generated per frame. @event{EVT_WEB_VIEW_LOADED(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_LOADED event generated when the document - is fully loaded and displayed. - @event{EVT_WEB_VIEW_ERRROR(id, func)} + is fully loaded and displayed. Note that if the displayed HTML document has + several frames, one such event will be generated per frame. + @event{EVT_WEB_VIEW_ERROR(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_ERROR event generated when a navigation error occurs. The integer associated with this event will be a wxWebNavigationError item. @@ -467,51 +695,43 @@ public: precise error message/code. @event{EVT_WEB_VIEW_NEWWINDOW(id, func)} Process a @c wxEVT_COMMAND_WEB_VIEW_NEWWINDOW event, generated when a new - window is created. This event may be vetoed to prevent a new window showing, - for example if you want to open the url in the existing window or a new tab. + window is created. You must handle this event if you want anything to + happen, for example to load the page in a new window or tab. + @event{EVT_WEB_VIEW_TITLE_CHANGED(id, func)} + Process a @c wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED event, generated when + the page title changes. Use GetString to get the title. @endEventTable - @library{wxweb} - @category{events,web} + @since 2.9.3 + @library{wxwebview} + @category{events,webview} @see wxWebView */ -class wxWebNavigationEvent : public wxCommandEvent +class wxWebViewEvent : public wxNotifyEvent { public: - wxWebNavigationEvent(); - wxWebNavigationEvent(wxEventType type, int id, const wxString href, - const wxString target, bool canVeto); - /** - Get the URL being visited - */ - const wxString& GetHref() const { return m_href; } + wxWebViewEvent(); + wxWebViewEvent(wxEventType type, int id, const wxString href, + const wxString target); /** - Get the target (frame or window) in which the URL that caused this event - is viewed, or an empty string if not available. + Get the name of the target frame which the url of this event + has been or will be loaded into. This may return an emptry string + if the frame is not available. */ const wxString& GetTarget() const; - virtual wxEvent* Clone() const; - - /** - Get whether this event may be vetoed (stopped/prevented). Only - meaningful for events fired before navigation takes place or new - window events. - */ - bool CanVeto() const; + /** + Get the URL being visited + */ + const wxString& GetURL() const; +}; - /** - Whether this event was vetoed (stopped/prevented). Only meaningful for - events fired before navigation takes place or new window events. - */ - bool IsVetoed() const; - /** - Veto (prevent/stop) this event. Only meaningful for events fired - before navigation takes place or new window events. Only valid - if CanVeto() returned true. - */ - void Veto(); -}; \ No newline at end of file +wxEventType wxEVT_COMMAND_WEB_VIEW_NAVIGATING; +wxEventType wxEVT_COMMAND_WEB_VIEW_NAVIGATED; +wxEventType wxEVT_COMMAND_WEB_VIEW_LOADED; +wxEventType wxEVT_COMMAND_WEB_VIEW_ERROR; +wxEventType wxEVT_COMMAND_WEB_VIEW_NEWWINDOW; +wxEventType wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED;