wx.html2.WebView¶

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 wx.html.HtmlWindow in that each backend is actually a full rendering engine, Internet Explorer or Edge on MSW and WebKit on macOS and GTK. This allows the correct viewing of complex pages with JavaScript and CSS.

Backend Descriptions¶

This class supports using multiple backends, corresponding to different implementations of the same functionality. Under macOS and Unix platforms only a single, WebKit-based, backend is currently provided, but under MSW both the legacy IE backend and the new Edge backend exist. Backends are identified by their names, documented in the backend descriptions below.

`WEBVIEW_BACKEND_IE` (MSW)¶

The IE backend uses Microsoft’s WebBrowser control, which depends the locally installed version of Internet Explorer. By default this backend emulates Internet Explorer 7. This can be changed with a registry setting by WebViewIE.MSWSetEmulationLevel see this article for more information. This backend has full support for custom schemes and virtual file systems. The predefined WebViewBackendIE constant contains the name of this backend and can be used to explicitly select it when using wx.html2.WebView.New .

`WEBVIEW_BACKEND_EDGE` (MSW)¶

The Edge backend uses Microsoft’s Edge WebView2. It is available for Windows 7 and newer. This backend does not support custom schemes and virtual file systems. This backend is not enabled by default, to build it follow these steps:

Visual Studio 2015 or newer, or GCC/Clang with c++11 is required
With CMake just enable USE_WEBVIEW_EDGE
When not using CMake:
- Download the WebView2 SDK nuget package (Version 1.0.705.50 or newer)
- Extract the package (it’s a zip archive) to Widgets/3rdparty/webview2 (you should have 3rdparty/webview2/build/native/include/WebView2.h file after unpacking it)
- Enable USE_WEBVIEW_EDGE in setup.h
Build wxWidgets webview library
Copy WebView2Loader.dll from the subdirectory corresponding to the architecture used (x86 or x64) of Widgets/3rdparty/webview2/build/ to your applications executable
At runtime you can use wx.html2.WebView.IsBackendAvailable to check if the backend can be used (it will be available if WebView2Loader.dll can be loaded and Edge (Chromium) is installed)
Make sure to add a note about using the WebView2 SDK to your application documentation, as required by its licence
With Visual Studio 2019 or newer USE_WEBVIEW_EDGE_STATIC can be used to static link the loader and remove the dependency on WebView2Loader.dll at runtime.

If enabled and available at runtime Edge will be selected as the default backend. If you require the IE backend use WebViewBackendIE when using wx.html2.WebView.New . If your application should use a fixed version of the WebView2 runtime you must use WebViewEdge.MSWSetBrowserExecutableDir to specify its usage before using the Edge backend. The predefined WebViewBackendEdge constant contains the name of this backend.

`WEBVIEW_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. The predefined WebViewBackendWebKit constant contains the name of this backend.

`WEBVIEW_WEBKIT2` (`GTK3`)¶

Under GTK3 the WebKit2 version of WebKitGTK+ is used. In Ubuntu the required package name is libwebkit2gtk-4.0-dev and under Fedora it is webkitgtk4-devel. All features are supported except for clearing and enabling / disabling the history. The predefined WebViewBackendWebKit constant contains the name of this backend.

`WEBVIEW_WEBKIT` (macOS)¶

The macOS WebKit backend uses Apple’s WKWebView class. This backend has full support for custom schemes and virtual file systems on macOS 10.13+. In order to use handlers two-step creation has to be used and RegisterHandler has to be called before Create. Starting with macOS 10.11 and iOS 9 an application cannot create unsecure connections (this includes HTTP and unverified HTTPS). You have to include additional fields in your Info.plist to enable such connections. For further details see the documentation on NSAppTransportSecurity here The predefined WebViewBackendWebKit constant contains the name of this backend.

Asynchronous Notifications¶

Many of the methods in wx.html2.WebView 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 wxEVT_WEBVIEW_LOADED notifies when the page or a sub-frame has finished loading and wxEVT_WEBVIEW_ERROR notifies that an error has occurred.

Virtual File Systems and Custom Schemes¶

wx.html2.WebView supports the registering of custom scheme handlers, for example file or http . To do this create a new class which inherits from wx.html2.WebViewHandler, where WebHandler.GetFile() returns a pointer to a wx.FSFile which represents the given url. You can then register your handler with RegisterHandler it will be called for all pages and resources. wx.html2.WebViewFSHandler is provided to access the virtual file system encapsulated by wx.FileSystem. The wx.MemoryFSHandler documentation gives an example of how this may be used. wx.html2.WebViewArchiveHandler is provided to allow the navigation of pages inside a zip archive. It supports paths of the form: scheme:///C :/example/docs.zip;protocol=zip/main.htm

Events Emitted by this Class¶

Handlers bound for the following event types will receive one of the wx.html2.WebViewEvent parameters.

EVT_WEBVIEW_NAVIGATING: Process a wxEVT_WEBVIEW_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.
EVT_WEBVIEW_NAVIGATED: Process a wxEVT_WEBVIEW_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.
EVT_WEBVIEW_LOADED: Process a wxEVT_WEBVIEW_LOADED event generated when the document is fully loaded and displayed. Note that if the displayed HTML document has several frames, one such event will be generated per frame.
EVT_WEBVIEW_ERROR: Process a wxEVT_WEBVIEW_ERROR event generated when a navigation error occurs. The integer associated with this event will be a WebNavigationError item. The string associated with this event may contain a backend-specific more precise error message/code.
EVT_WEBVIEW_NEWWINDOW: Process a wxEVT_WEBVIEW_NEWWINDOW event, generated when a new 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.
EVT_WEBVIEW_TITLE_CHANGED: Process a wxEVT_WEBVIEW_TITLE_CHANGED event, generated when the page title changes. Use GetString to get the title.
EVT_WEBVIEW_FULLSCREEN_CHANGED: Process a wxEVT_WEBVIEW_FULLSCREEN_CHANGED event, generated when the page wants to enter or leave fullscreen. Use GetInt to get the status. Not implemented for the IE backend and is only available in wxWidgets 3.1.5 or later.
EVT_WEBVIEW_SCRIPT_MESSAGE_RECEIVED: Process a wxEVT_WEBVIEW_SCRIPT_MESSAGE_RECEIVED event only available in wxWidgets 3.1.5 or later. For usage details see AddScriptMessageHandler.
wxEVT_WEBVIEW_SCRIPT_RESULT: Process a wxEVT_WEBVIEW_SCRIPT_RESULT event only available in wxWidgets 3.1.6 or later. For usage details see RunScriptAsync.

wx.html2.WebView

Added in version 2.9.3.

Note

If you plan to display any modern web content you should consider using WEBVIEW_BACKEND_EDGE , as Internet Explorer is not supported anymore by Microsoft.

Class Hierarchy¶

Inheritance diagram for class WebView:

Known Subclasses¶

WebViewEdge , WebViewIE

Methods Summary¶

`AddScriptMessageHandler`	Add a script message handler with the given name.
`AddUserScript`	Injects the specified script into the webpage’s content.
`CanCopy`	Returns `True` if the current selection can be copied.
`CanCut`	Returns `True` if the current selection can be cut.
`CanGoBack`	Returns `True` if it is possible to navigate backward in the history of visited pages.
`CanGoForward`	Returns `True` if it is possible to navigate forward in the history of visited pages.
`CanPaste`	Returns `True` if data can be pasted.
`CanRedo`	Returns `True` if there is an action to redo.
`CanSetZoomType`	Retrieve whether the current HTML engine supports a zoom type.
`CanUndo`	Returns `True` if there is an action to undo.
`ClearHistory`	Clear the history, this will also remove the visible page.
`ClearSelection`	Clears the current selection.
`Copy`	Copies the current selection.
`Create`	Creation function for two-step creation.
`Cut`	Cuts the current selection.
`DeleteSelection`	Deletes the current selection.
`EnableAccessToDevTools`	Enable or disable access to dev tools for the user.
`EnableContextMenu`	Enable or disable the right click context menu.
`EnableHistory`	Enable or disable the history.
`Find`	Finds a phrase on the current page and if found, the control will scroll the phrase into view and select it.
`GetBackendVersionInfo`	Retrieve the version information about the backend implementation.
`GetBackwardHistory`	Returns a list of items in the back history.
`GetClassDefaultAttributes`
`GetCurrentTitle`	Get the title of the current web page, or its URL/path if title is not available.
`GetCurrentURL`	Get the URL of the currently displayed document.
`GetForwardHistory`	Returns a list of items in the forward history.
`GetNativeBackend`	Return the pointer to the native backend used by this control.
`GetPageSource`	Get the HTML source code of the currently displayed document.
`GetPageText`	Get the text of the current page.
`GetSelectedSource`	Returns the currently selected source, if any.
`GetSelectedText`	Returns the currently selected text, if any.
`GetUserAgent`	Returns the current user agent string for the web view.
`GetZoom`	Get the zoom level of the page.
`GetZoomFactor`	Get the zoom factor of the page.
`GetZoomType`	Get how the zoom factor is currently interpreted.
`GoBack`	Navigate back in the history of visited pages.
`GoForward`	Navigate forward in the history of visited pages.
`HasSelection`	Returns `True` if there is a current selection.
`IsAccessToDevToolsEnabled`	Returns `True` if dev tools are available to the user.
`IsBackendAvailable`	Allows to check if a specific backend is currently available.
`IsBusy`	Returns whether the web control is currently busy (e.g. loading a page).
`IsContextMenuEnabled`	Returns `True` if a context menu will be shown on right click.
`IsEditable`	Returns whether the web control is currently editable.
`LoadURL`	Load a web page from a URL.
`MSWSetEmulationLevel`	Sets emulation level.
`MSWSetModernEmulationLevel`
`New`	Factory function to create a new wx.html2.WebView with two-step creation, `wx.html2.WebView.Create` should be called on the returned object.
`Paste`	Pastes the current data.
`Print`	Opens a print dialog so that the user may print the currently displayed page.
`Redo`	Redos the last action.
`RegisterFactory`	Allows the registering of new backend for wx.html2.WebView.
`RegisterHandler`	Registers a custom scheme handler.
`Reload`	Reload the currently displayed URL.
`RemoveAllUserScripts`	Removes all user scripts from the web view.
`RemoveScriptMessageHandler`	Remove a script message handler with the given name that was previously added via `AddScriptMessageHandler` .
`RunScript`	Runs the given JavaScript code.
`RunScriptAsync`	Runs the given JavaScript code asynchronously and returns the result via a `wxEVT_WEBVIEW_SCRIPT_RESULT` .
`SelectAll`	Selects the entire page.
`SetEditable`	Set the editable property of the web control.
`SetPage`	Set the displayed page source to the contents of the given string.
`SetUserAgent`	Specify a custom user agent string for the web view.
`SetZoom`	Set the zoom level of the page.
`SetZoomFactor`	Set the zoom factor of the page.
`SetZoomType`	Set how to interpret the zoom factor.
`Stop`	Stop the current page loading process, if any.
`Undo`	Undos the last action.

Properties Summary¶

`BackwardHistory`	See `GetBackwardHistory`
`CurrentTitle`	See `GetCurrentTitle`
`CurrentURL`	See `GetCurrentURL`
`ForwardHistory`	See `GetForwardHistory`
`NativeBackend`	See `GetNativeBackend`
`PageSource`	See `GetPageSource`
`PageText`	See `GetPageText`
`SelectedSource`	See `GetSelectedSource`
`SelectedText`	See `GetSelectedText`
`UserAgent`	See `GetUserAgent` and `SetUserAgent`
`Zoom`	See `GetZoom` and `SetZoom`
`ZoomFactor`	See `GetZoomFactor` and `SetZoomFactor`
`ZoomType`	See `GetZoomType` and `SetZoomType`

Class API¶

class wx.html2.WebView(Control)¶

This control may be used to render web (HTML / CSS / javascript) documents.

Methods¶

AddScriptMessageHandler(self, name)¶

Add a script message handler with the given name.

To use the script message handler from javascript use window .<name>.postMessage(<messageBody>) where <name> corresponds the value of the name parameter. The <messageBody> will be available to the application via a wxEVT_WEBVIEW_SCRIPT_MESSAGE_RECEIVED event.

Sample C++ code receiving a script message:

# Install message handler with the name wx_msg
self.webView.AddScriptMessageHandler('wx_msg')
# Bind an event handler to receive those messages
self.webView.Bind(wx.EVT_WEBVIEW_SCRIPT_MESSAGE_RECEIVED, self.handleMessage)

Sample javascript sending a script message:

# Send sample message body
window.wx_msg.postMessage('This is a message body')

Parameters:: name (string) – Name of the message handler that can be used from javascript
Return type:: bool
Returns:: True if the handler could be added, False if it could not be added.

Added in version 4.1/wxWidgets-3.1.5.

Note

The Edge backend only supports a single message handler and the IE backend does not support script message handlers.

See also

RemoveScriptMessageHandler

AddUserScript(self, javascript, injectionTime=WEBVIEW_INJECT_AT_DOCUMENT_START)¶

Injects the specified script into the webpage’s content.

Parameters:

javascript (string) – The javascript code to add.
injectionTime (WebViewUserScriptInjectionTime) – Specifies when the script will be executed.

Return type:

bool

Returns:

Returns True if the script was added successfully.

Added in version 4.1/wxWidgets-3.1.5.

Note

Please note that this is unsupported by the IE backend and the Edge backend does only support wx.html2.WEBVIEW_INJECT_AT_DOCUMENT_START.

See also

RemoveAllUserScripts

CanCopy(self)¶

Returns True if the current selection can be copied.

Return type:: bool

CanCut(self)¶

Returns True if the current selection can be cut.

Return type:: bool

CanGoBack(self)¶

Returns True if it is possible to navigate backward in the history of visited pages.

Return type:: bool

CanGoForward(self)¶

Returns True if it is possible to navigate forward in the history of visited pages.

Return type:: bool

CanPaste(self)¶

Returns True if data can be pasted.

Return type:: bool

CanRedo(self)¶

Returns True if there is an action to redo.

Return type:: bool

CanSetZoomType(self, type)¶

Retrieve whether the current HTML engine supports a zoom type.

Parameters:: type (WebViewZoomType) – The zoom type to test.
Return type:: bool
Returns:: Whether this type of zoom is supported by this HTML engine (and thus can be set through SetZoomType ).

CanUndo(self)¶

Returns True if there is an action to undo.

Return type:: bool

ClearHistory(self)¶

Clear the history, this will also remove the visible page.

Return type:: None

Note

This is not implemented on the WebKit2GTK+ backend and macOS.

ClearSelection(self)¶

Clears the current selection.

Return type:: None

Copy(self)¶

Copies the current selection.

Return type:: None

Create(self, parent, id=ID_ANY, url=WebViewDefaultURLStr, pos=DefaultPosition, size=DefaultSize, style=0, name=WebViewNameStr)¶

Creation function for two-step creation.

Parameters:

parent (wx.Window)
id (wx.WindowID)
url (string)
pos (wx.Point)
size (wx.Size)
style (long)
name (string)

Return type:

bool

Cut(self)¶

Cuts the current selection.

Return type:: None

DeleteSelection(self)¶

Deletes the current selection.

Note that for WEBVIEW_BACKEND_WEBKIT the selection must be editable, either through SetEditable or the correct HTML attribute.

Return type:: None

EnableAccessToDevTools(self, enable=True)¶

Enable or disable access to dev tools for the user.

Dev tools are disabled by default.

Parameters:: enable (bool)
Return type:: None

Added in version 4.1/wxWidgets-3.1.4.

Note

This is not implemented for the IE backend.

EnableContextMenu(self, enable=True)¶

Enable or disable the right click context menu.

By default the standard context menu is enabled, this method can be used to disable it or re-enable it later.

Parameters:: enable (bool)
Return type:: None

Added in version 2.9.5.

EnableHistory(self, enable=True)¶

Enable or disable the history.

This will also clear the history.

Parameters:: enable (bool)
Return type:: None

Note

This is not implemented on the WebKit2GTK+ backend and macOS.

Find(self, text, flags=WEBVIEW_FIND_DEFAULT)¶

Finds a phrase on the current page and if found, the control will scroll the phrase into view and select it.

Parameters:

text (string) – The phrase to search for.
flags (WebViewFindFlags) – The flags for the search.

Return type:

int

Returns:

If search phrase was not found in combination with the flags then NOT_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.

Added in version 2.9.5.

Note

This function will restart the search if the flags WEBVIEW_FIND_ENTIRE_WORD or WEBVIEW_FIND_MATCH_CASE are changed, since this will require a new search. To reset the search, for example resetting the highlights call the function with an empty search phrase.

static GetBackendVersionInfo(backend=WebViewBackendDefault)¶

Retrieve the version information about the backend implementation.

Parameters:: backend (string)
Return type:: VersionInfo

Added in version 4.1/wxWidgets-3.1.5.

GetBackwardHistory(self)¶

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.

Return type:: Any

static GetClassDefaultAttributes(variant=WINDOW_VARIANT_NORMAL)¶

Parameters:: variant (WindowVariant)
Return type:: VisualAttributes

GetCurrentTitle(self)¶

Get the title of the current web page, or its URL/path if title is not available.

Return type:: str

GetCurrentURL(self)¶

Get the URL of the currently displayed document.

Return type:: str

GetForwardHistory(self)¶

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 currently loaded page.

Return type:: Any

GetNativeBackend(self)¶

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 macOS it’s a WebView pointer and under GTK it’s a WebKitWebView.

For example, you could set the WebKit options using this method:

# In Python the value returned will be a sip wrapper around a void* type,
# and it can be converted to the address being pointed to with int().
webview_ptr = self.webview.GetNativeBackend()

# Assuming you are able to get a ctypes, cffi or similar access to the
# webview library, you can use that pointer value to give it access to the
# WebView backend to operate upon.
theWebViewLib.doSomething(int(webview_ptr))

Return type:: Any

Added in version 2.9.5.

GetPageSource(self)¶

Get the HTML source code of the currently displayed document.

Return type:: str
Returns:: The HTML source code, or an empty string if no page is currently shown.

GetPageText(self)¶

Get the text of the current page.

Return type:: str

GetSelectedSource(self)¶

Returns the currently selected source, if any.

Return type:: str

GetSelectedText(self)¶

Returns the currently selected text, if any.

Return type:: str

GetUserAgent(self)¶

Returns the current user agent string for the web view.

Return type:: str

Added in version 4.1/wxWidgets-3.1.5.

GetZoom(self)¶

Get the zoom level of the page.

See GetZoomFactor to get more precise zoom scale value other than as provided by WebViewZoom .

Return type:: wx.html2.WebViewZoom
Returns:: The current level of zoom.

GetZoomFactor(self)¶

Get the zoom factor of the page.

Return type:: float
Returns:: The current factor of zoom.

Added in version 4.1/wxWidgets-3.1.4.

GetZoomType(self)¶

Get how the zoom factor is currently interpreted.

Return type:: wx.html2.WebViewZoomType
Returns:: How the zoom factor is currently interpreted by the HTML engine.

GoBack(self)¶

Navigate back in the history of visited pages.

Only valid if CanGoBack returns True.

Return type:: None

GoForward(self)¶

Navigate forward in the history of visited pages.

Only valid if CanGoForward returns True.

Return type:: None

HasSelection(self)¶

Returns True if there is a current selection.

Return type:: bool

IsAccessToDevToolsEnabled(self)¶

Returns True if dev tools are available to the user.

Return type:: bool

Added in version 4.1/wxWidgets-3.1.4.

static IsBackendAvailable(backend)¶

Allows to check if a specific backend is currently available.

For example, to check for Edge backend availability:

if wx.html2.WebView.IsBackendAvailable(wx.html2.WebViewBackendEdge):
    # Do whatever you need to do when the Edge backend is available

Parameters:: backend (string)
Return type:: bool

Added in version 4.1/wxWidgets-3.1.4.

IsBusy(self)¶

Returns whether the web control is currently busy (e.g. loading a page).

Return type:: bool

IsContextMenuEnabled(self)¶

Returns True if a context menu will be shown on right click.

Return type:: bool

Added in version 2.9.5.

IsEditable(self)¶

Returns whether the web control is currently editable.

Return type:: bool

LoadURL(self, url)¶

Load a web page from a URL.

Parameters:: url (string) – The URL of the page to be loaded.
Return type:: None

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.

static MSWSetEmulationLevel(level=WEBVIEWIE_EMU_IE11)¶

Sets emulation level.

This function is useful to change the emulation level of the system browser control used for wx.html2.WebView implementation under MSW, rather than using the currently default, IE7-compatible, level.

Please notice that this function works by modifying the per-user part of MSW registry, which has several implications: first, it is sufficient to call it only once (per user) as the changes done by it are persistent and, second, if you do not want them to be persistent, you need to call it with WEBVIEWIE_EMU_DEFAULT argument explicitly.

In particular, this function should be called to allow RunScript to work for JavaScript code returning arbitrary objects, which is not supported at the default emulation level.

If set to a level higher than installed version, the highest available level will be used instead. WEBVIEWIE_EMU_IE11 is recommended for best performance and experience.

This function is MSW-specific and doesn’t exist under other platforms.

See https://msdn.microsoft.com/en-us/library/ee330730#browser_emulation for more information about browser control emulation levels.

Parameters:: level (WebViewIE_EmulationLevel) – the target emulation level
Return type:: bool
Returns:: True on success, False on failure (a warning message is also logged in the latter case).

Added in version 4.1/wxWidgets-3.1.3.

static MSWSetModernEmulationLevel(modernLevel=True)¶

Please explicitly specify emulation level with MSWSetEmulationLevel .

Parameters:: modernLevel (bool) – True to set level to IE8, synonym for WEBVIEWIE_EMU_IE8 . False to reset the emulation level to its default, synonym for WEBVIEWIE_EMU_DEFAULT .
Return type:: bool
Returns:: True on success, False on failure (a warning message is also logged in the latter case).

Added in version 4.1/wxWidgets-3.1.1.

Deprecated

This function is kept mostly for backwards compatibility.

static New(*args, **kw)¶

Overloaded Implementations:

New (backend=WebViewBackendDefault)

Factory function to create a new wx.html2.WebView with two-step creation, wx.html2.WebView.Create should be called on the returned object.

Parameters:: backend (string) – The backend web rendering engine to use. WebViewBackendDefault , WebViewBackendIE and WebViewBackendWebKit are predefined where appropriate.
Return type:: wx.html2.WebView
Returns:: The created wx.html2.WebView

Added in version 2.9.5.

New (parent, id=ID_ANY, url=WebViewDefaultURLStr, pos=DefaultPosition, size=DefaultSize, backend=WebViewBackendDefault, style=0, name=WebViewNameStr)

Factory function to create a new wx.html2.WebView using a wx.html2.WebViewFactory.

Parameters:

parent (wx.Window) – Parent window for the control
id (wx.WindowID) – ID of this control
url (string) – Initial URL to load
pos (wx.Point) – Position of the control
size (wx.Size) – Size of the control
backend (string) – The backend web rendering engine to use. WebViewBackendDefault , WebViewBackendIE and WebViewBackendWebKit are predefined where appropriate.
style (long) – Window style. For generic window styles, please see wx.Window.
name (string) – Window name.

Return type:

wx.html2.WebView

Returns:

The created wx.html2.WebView, or NULL if the requested backend is not available

Added in version 2.9.5.

Paste(self)¶

Pastes the current data.

Return type:: None

Print(self)¶

Opens a print dialog so that the user may print the currently displayed page.

Return type:: None

Redo(self)¶

Redos the last action.

Return type:: None

static RegisterFactory(backend, factory)¶

Allows the registering of new backend for wx.html2.WebView.

backend can be used as an argument to New .

Parameters:

backend (string) – The name for the new backend to be registered under
factory (wx.html2.WebViewFactory) – A shared pointer to the factory which creates the appropriate backend.

Return type:

None

Added in version 2.9.5.

RegisterHandler(self, handler)¶

Registers a custom scheme handler.

Parameters:: handler (wx.html2.WebViewHandler) – A shared pointer to a WebHandler.
Return type:: None

Note

On macOS in order to use handlers two-step creation has to be used and RegisterHandler has to be called before Create . With the other backends it has to be called after Create .

Reload(self, flags=WEBVIEW_RELOAD_DEFAULT)¶

Reload the currently displayed URL.

Parameters:: flags (WebViewReloadFlags) – A bit array that may optionally contain reload options.
Return type:: None

Note

The flags are ignored by the Edge backend.

RemoveAllUserScripts(self)¶

Removes all user scripts from the web view.

Return type:: None

Added in version 4.1/wxWidgets-3.1.5.

See also

AddUserScript

RemoveScriptMessageHandler(self, name)¶

Remove a script message handler with the given name that was previously added via AddScriptMessageHandler .

Parameters:: name (string)
Return type:: bool
Returns:: True if the handler could be removed, False if it could not be removed.

Added in version 4.1/wxWidgets-3.1.5.

See also

AddScriptMessageHandler

RunScript(self, javascript)¶

Runs the given JavaScript code.

JavaScript code is executed inside the browser control and has full access to DOM and other browser-provided functionality. For example, this code

webview.RunScript("document.write('Hello from wx.Widgets!')")

will replace the current page contents with the provided string.

If output is non-null, it is filled with the result of executing this code on success, e.g. a JavaScript value such as a string, a number (integer or floating point), a boolean or JSON representation for non-primitive types such as arrays and objects. For example:

success, result = webview.RunScript(
    "document.getElementById('some_id').innderHTML")

if success:
    ... result contains the contents of the given element ...

else:
    ... the element with self ID probably doesn't exist ...

This function has a few platform-specific limitations:

When using WebKit v1 in wxGTK2, retrieving the result of JavaScript execution is unsupported and this function will always return False if output is non-null to indicate this. This functionality is fully supported when using WebKit v2 or later in GTK3.
When using WebKit under macOS, code execution is limited to at most 10MiB of memory and 10 seconds of execution time.
When using IE backend under MSW, scripts can only be executed when the current page is fully loaded (i.e. wxEVT_WEBVIEW_LOADED event was received). A script tag inside the page HTML is required in order to run JavaScript.

Also notice that under MSW converting JavaScript objects to JSON is not supported in the default emulation mode. wx.html2.WebView implements its own object-to-JSON conversion as a fallback for this case, however it is not as full-featured, well-tested or performing as the implementation of this functionality in the browser control itself, so it is recommended to use MSWSetEmulationLevel() to change emulation level to a more modern one in which JSON conversion is done by the control itself.

Parameters:: javascript (string) – JavaScript code to execute.
Return type:: Tuple[bool, str]
Returns:: True if there is a result, False if there is an error.

Note

Because of various potential issues it’s recommended to use RunScriptAsync instead of this method. This is especially True if you plan to run code from a webview event and will also prevent unintended side effects on the UI outside of the webview.

See also

RunScriptAsync

RunScriptAsync(self, javascript, clientData=None)¶

Runs the given JavaScript code asynchronously and returns the result via a wxEVT_WEBVIEW_SCRIPT_RESULT .

The script result value can be retrieved via wx.html2.WebViewEvent.GetString . If the execution fails wx.html2.WebViewEvent.IsError will return True. In this case additional script execution error information maybe available via wx.html2.WebViewEvent.GetString .

Parameters:

javascript (string) – JavaScript code to execute.
clientData – Arbirary pointer to data that can be retrieved from the result event.

Return type:

None

Added in version 4.1/wxWidgets-3.1.6.

Note

The IE backend does not support async script execution.

See also

RunScript

SelectAll(self)¶

Selects the entire page.

Return type:: None

SetEditable(self, enable=True)¶

Set the editable property of the web control.

Enabling allows the user to edit the page even if the contenteditable attribute is not set. The exact capabilities vary with the backend being used.

Parameters:: enable (bool)
Return type:: None

Note

This is not implemented for macOS and the Edge backend.

SetPage(self, *args, **kw)¶

Overloaded Implementations:

SetPage (self, html, baseUrl)

Set the displayed page source to the contents of the given string.

Parameters:

html (string) – The string that contains the HTML data to display.
baseUrl (string) – URL assigned to the HTML data, to be used to resolve relative paths, for instance.

Return type:

None

Note

When using WEBVIEW_BACKEND_IE you must wait for the current page to finish loading before calling SetPage . The baseURL parameter is not used in this backend and the Edge backend.

SetPage (self, html, baseUrl)

Set the displayed page source to the contents of the given stream.

Parameters:

html (wx.InputStream) – The stream to read HTML data from.
baseUrl (string) – URL assigned to the HTML data, to be used to resolve relative paths, for instance.

Return type:

None

SetUserAgent(self, userAgent)¶

Specify a custom user agent string for the web view.

Returns True the user agent could be set.

If your first request should already use the custom user agent please use two step creation and call SetUserAgent before Create .

Parameters:: userAgent (string)
Return type:: bool

Added in version 4.1/wxWidgets-3.1.5.

Note

This is not implemented for IE. For Edge SetUserAgent MUST be called before Create .

SetZoom(self, zoom)¶

Set the zoom level of the page.

See SetZoomFactor for more precise scaling other than the measured steps provided by WebViewZoom .

Parameters:: zoom (WebViewZoom) – How much to zoom (scale) the HTML document.
Return type:: None

SetZoomFactor(self, zoom)¶

Set the zoom factor of the page.

Parameters:: zoom (float) – How much to zoom (scale) the HTML document in arbitrary number.
Return type:: None

Added in version 4.1/wxWidgets-3.1.4.

Note

zoom scale in IE will be converted into WebViewZoom levels for WebViewZoomType of WEBVIEW_ZOOM_TYPE_TEXT .

SetZoomType(self, zoomType)¶

Set how to interpret the zoom factor.

Parameters:: zoomType (WebViewZoomType) – How the zoom factor should be interpreted by the HTML engine.
Return type:: None

Note

invoke CanSetZoomType first, some HTML renderers may not support all zoom types.

Stop(self)¶

Stop the current page loading process, if any.

May trigger an error event of type WEBVIEW_NAV_ERR_USER_CANCELLED . TODO: make WEBVIEW_NAV_ERR_USER_CANCELLED errors uniform across ports.

Return type:: None

Undo(self)¶

Undos the last action.

Return type:: None

Properties¶

BackwardHistory¶: See GetBackwardHistory

CurrentTitle¶: See GetCurrentTitle

CurrentURL¶: See GetCurrentURL

ForwardHistory¶: See GetForwardHistory

NativeBackend¶: See GetNativeBackend

PageSource¶: See GetPageSource

PageText¶: See GetPageText

SelectedSource¶: See GetSelectedSource

SelectedText¶: See GetSelectedText

UserAgent¶: See GetUserAgent and SetUserAgent

Zoom¶: See GetZoom and SetZoom

ZoomFactor¶: See GetZoomFactor and SetZoomFactor

ZoomType¶: See GetZoomType and SetZoomType

wx.html2.WebView¶

Backend Descriptions¶

`WEBVIEW_BACKEND_IE` (MSW)¶

`WEBVIEW_BACKEND_EDGE` (MSW)¶

`WEBVIEW_WEBKIT` (GTK)¶

`WEBVIEW_WEBKIT2` (`GTK3`)¶

`WEBVIEW_WEBKIT` (macOS)¶

Asynchronous Notifications¶

Virtual File Systems and Custom Schemes¶

Events Emitted by this Class¶

Class Hierarchy¶

Known Subclasses¶

Methods Summary¶

Properties Summary¶

Class API¶

Methods¶

Properties¶

Table of Contents

This Page

wx.html2.WebView¶

Backend Descriptions¶

WEBVIEW_BACKEND_IE (MSW)¶

WEBVIEW_BACKEND_EDGE (MSW)¶

WEBVIEW_WEBKIT (GTK)¶

WEBVIEW_WEBKIT2 (GTK3)¶

WEBVIEW_WEBKIT (macOS)¶

Asynchronous Notifications¶

Virtual File Systems and Custom Schemes¶

Events Emitted by this Class¶

Class Hierarchy¶

Known Subclasses¶

Methods Summary¶

Properties Summary¶

Class API¶

Methods¶

Properties¶

`WEBVIEW_BACKEND_IE` (MSW)¶

`WEBVIEW_BACKEND_EDGE` (MSW)¶

`WEBVIEW_WEBKIT` (GTK)¶

`WEBVIEW_WEBKIT2` (`GTK3`)¶

`WEBVIEW_WEBKIT` (macOS)¶