fuchsia_web/runners/cast/fidl/api_bindings.fidl

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library chromium.cast;

using fuchsia.mem;
using fuchsia.web;

/// Provides Cast platform API binding scripts and methods for connecting those
/// scripts with Agent backends.
@discoverable
closed protocol ApiBindings {
    /// Gets the list of bindings to early-inject into the page at load time.
    /// The returned ApiBindings must be evaluated in order.
    strict GetAll() -> (resource struct {
        bindings vector<ApiBinding>;
    });

    /// Should be invoked when a connecting a named MessagePort to a native
    /// bindings backend.
    strict Connect(resource struct {
        port_name string;
        message_port client_end:fuchsia.web.MessagePort;
    });
};

type ApiBinding = resource table {
    /// Script to execute before the load of a web document.
    1: before_load_script fuchsia.mem.Buffer;
};