GWidgetsTopLevel-class: A toplevel object for a gWidgetsWWW2 app stores page-specific...

In gWidgetsWWW2: Toolkit implementation of the gWidgets API for use with web pages

Description

The toplevel object for gWidgetsWWW2 apps stores page specific information. As there can potentially be several gwindow instances on a page (using renderTo), however all share the same toplevel instance. This instance holds a reference to the evaluation environment, the request that generates the page, the objects populating the page, and a queue for holding JavaScript commands (produced by method calls, say).

Details

The sharing of this toplevel object amongs each component is the reason why the constructors require a specification of either a container or parent argument.

Methods

add_object(obj, id)

Add object to objects list

call_handler(id, signal, params, e_cookies)

lookup widget by id, notify any observer of this signal

call_post_proxy(id, param)

Run proxy, return JSON encoded object

call_proxy(id, param)

Run proxy, return JSON encoded object

call_transport(id, param)

Run transport

call_upload(id, param, post_data)

process a file upload, sets value via svalue if file exists

do_layout()

Update layout from toplevel

get_object_by_id(id)

Lookup object by its id

js_queue_flush()

Flush JavaScript queue

js_queue_push(x)

push command (string) to queue for JavaScript Commands

gWidgetsWWW2 documentation built on May 2, 2019, 6:10 p.m.