API

webview.create_window

webview.create_window(title, url='', html='', js_api=None, width=800, height=600, \
                      x=None, y=None, resizable=True, fullscreen=False, \
                      min_size=(200, 100), hidden=False, frameless=False, \
                      minimized=False, on_top=False, confirm_close=False, \
                      background_color='#FFF', text_select=False)

Create a new pywebview window and returns its instance. Window is not shown until the GUI loop is started. If the function is invoked during the GUI loop, the window is displayed immediately.

  • title - Window title
  • url - URL to load. If the URL does not have a protocol prefix, it is resolved as a path relative to the application entry point. Alternatively a WSGI server object can be passed to start a local web server.
  • html - HTML code to load. If both URL and HTML are specified, HTML takes precedence.
  • js_api - Expose a python object to the DOM of the current pywebview window. Methods of the js_api object can be executed from Javascript by calling window.pywebview.api.<methodname>(<parameters>). Please note that the calling Javascript function receives a promise that will contain the return value of the python function. Only basic Python objects (like int, str, dict, ...) can be returned to Javascript.
  • width - Window width. Default is 800px.
  • height - Window height. Default is 600px.
  • x - Window x coordinate. Default is centered.
  • y - Window y coordinate. Default is centered.
  • resizable - Whether window can be resized. Default is True
  • fullscreen - Start in fullscreen mode. Default is False
  • min_size - a (width, height) tuple that specifies a minimum window size. Default is 200x100
  • hidden - Create a window hidden by default. Default is False
  • frameless - Create a frameless window. Default is False.
  • easy_drag - Easy drag mode for frameless windows. Window can be moved by dragging any point. Default is True. Note that easy_drag has no effect with normal windows. To control dragging on an element basis, see drag area for details.
  • minimized - Start in minimized mode
  • on_top - Set window to be always on top of other windows. Default is False.
  • confirm_close - Whether to display a window close confirmation dialog. Default is False
  • background_color - Background color of the window displayed before WebView is loaded. Specified as a hex color. Default is white.
  • transparent - Create a transparent window. Not supported on Windows. Default is False. Note that this setting does not hide or make window chrome transparent. To hide window chrome set frameless to True.
  • text_select - Enables document text selection. Default is False. To control text selection on per element basis, use user-select CSS property.

webview.start

webview.start(func=None, args=None, localization={}, gui=None, debug=False, \
              http_server=False, user_agent=None)

Start a GUI loop and display previously created windows. This function must be called from a main thread.

  • func - function to invoke upon starting the GUI loop.
  • args - function arguments. Can be either a single value or a tuple of values.
  • localization - a dictionary with localized strings. Default strings and their keys are defined in localization.py
  • gui - force a specific GUI. Allowed values are cef, qt or gtk depending on a platform. See Renderer for details.
  • debug - enable debug mode. See Debugging for details.
  • http_server - enable built-in HTTP server. If enabled, local files will be served using a local HTTP server on a random port. For each window, a separate HTTP server is spawned. This option is ignored for non-local URLs.
  • user_agent - change user agent string. Not supported in EdgeHTML.

Examples

webview.screens

webview.screens

Return a list of available displays (as Screen objects) with the primary display as the first element of the list.

Examples

webview.token

webview.token

A CSRF token property unique to the session. The same token is exposed as window.pywebview.token. See Security for usage details.

Screen object

Represents a display found on the system.

height

screen.height

Get display height.

width

screen.width

Get display width.

Window object

Represents a window that hosts webview. window object is returned by create_window function.

on_top

window.on_top

Get or set whether the window is always on top

x

window.x

Get X coordinate of the top-left corrner of the window

y

window.y

Get Y coordinate of the top-left corrner of the window

width

window.width

Get width of the window

height

window.height

Get height of the window

create_file_dialog

window.create_file_dialog(dialog_type=OPEN_DIALOG, directory='', allow_multiple=False, save_filename='', file_types=())`

Create an open file (webview.OPEN_DIALOG), open folder (webview.FOLDER_DIALOG) or save file (webview.SAVE_DIALOG) dialog.

Return a tuple of selected files, None if cancelled.

  • allow_multiple=True enables multiple selection.
  • directory Initial directory.
  • save_filename Default filename for save file dialog.
  • file_types A tuple of supported file type strings in the open file dialog. A file type string must follow this format "Description (*.ext1;*.ext2...)".

If the argument is not specified, then the "All files (*.*)" mask is used by default. The 'All files' string can be changed in the localization dictionary.

Examples

destroy

window.destroy()

Destroy the window.

Example

evaluate_js

window.evaluate_js(script)

Execute Javascript code. The last evaluated expression is returned. Javascript types are converted to Python types, eg. JS objects to dicts, arrays to lists, undefined to None. Note that due implementation limitations the string 'null' will be evaluated to None. You must escape \n and \r among other escape sequences if they present in Javascript code. Otherwise they get parsed by Python. r'strings' is a recommended way to load Javascript. For GTK WebKit2 versions older than 2.22, there is a limit of about ~900 characters for a value returned by evaluate_js.

get_current_url

window.get_current_url()

Return the current URL. None if no url is loaded.

Example

get_elements

window.get_elements(selector)

Return the serialized DOM element by its selector. None if no element matches. For GTK you must have WebKit2 2.22 or greater to use this function.

Example

hide

window.hide()

Hide the window.

Example

load_css

window.load_css(css)

Load CSS as a string.

Example

load_html

window.load_html(content, base_uri=base_uri())

Load HTML code. Base URL for resolving relative URLs is set to the directory the program is launched from. Note that you cannot use hashbang anchors when HTML is loaded this way.

Example

load_url

window.load_url(url)

Load a new URL.

Example

minimize

window.minimize()

Minimize window.

Example

move

window.move(x, y)

Move window to a new position.

Example

restore

window.restore()

Restore minimized window.

Example

set_title

window.set_title(title)

Change the title of the window.

Example

show

window.show()

Show the window if it is hidden. Has no effect otherwise

Example

toggle_fullscreen

window.toggle_fullscreen()

Toggle fullscreen mode on the active monitor.

Example

Events

Window object has a number of lifecycle events. To subscribe to an event, use the += syntax, e.g. window.loaded += func. The func will be invoked, when event is fired. Duplicate subscriptions are ignored and function is invoked only once for duplicate subscribers. To unsubscribe window.loaded -= func.

closed

Event that is fired just before pywebview window is closed.

Example

closing

Event that is fired when pywebview window is about to be closed. If confirm_quit is set, then this event is fired before the close confirmation is displayed. If event handler returns False, the close operation will be cancelled.

Example

shown

Event that is fired when pywebview window is shown.

Example

loaded

Event that is fired when DOM is ready.

Example

DOM events

pywebview exposes a window.pywebviewready DOM event that is fired when window.pywebview is created.

Example

Drag area

pywebview window can be moved by dragging any element with the pywebview-drag-region class name. This is useful, for example, in frameless mode when you would like to implement a custom caption bar. The magic class name can be overriden by re-assigning the webview.DRAG_REGION_SELECTOR constant.

Example