// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module content.mojom;

import "content/public/common/window_container_type.mojom";
import "services/service_manager/public/interfaces/interface_provider.mojom";
import "third_party/WebKit/public/platform/referrer.mojom";
import "third_party/WebKit/public/web/window_features.mojom";
import "ui/base/mojo/window_open_disposition.mojom";
import "url/mojo/url.mojom";

// The name of the InterfaceProviderSpec in service manifests used by the
// frame tree to expose frame-specific interfaces between renderer and browser.
const string kNavigation_FrameSpec = "navigation:frame";

// Implemented by the frame provider (e.g. renderer processes).
interface Frame {
  GetInterfaceProvider(service_manager.mojom.InterfaceProvider& interfaces);
};

// Implemented by the frame (e.g. renderer processes).
// Instances of this interface must be associated with (i.e., FIFO with) the
// legacy IPC channel.
interface FrameBindingsControl {
  // Used to tell a render frame whether it should expose various bindings
  // that allow JS content extended privileges. See BindingsPolicy for valid
  // flag values.
  AllowBindings(int32 enabled_bindings_flags);
};

// Implemented by the frame server (i.e. the browser process).
interface FrameHostInterfaceBroker {
  GetInterfaceProvider(service_manager.mojom.InterfaceProvider& interfaces);
};

// Implemented by a service that provides implementations of the Frame
// interface. (e.g. renderer processes).
interface FrameFactory {
  CreateFrame(int32 frame_routing_id, Frame& frame, FrameHostInterfaceBroker host);
};

struct CreateNewWindowParams {
  // True if this open request came in the context of a user gesture.
  bool user_gesture;

  // Type of window requested.
  WindowContainerType window_container_type;

  // The session storage namespace ID this window should use.
  int64 session_storage_namespace_id;

  // The name of the resulting frame that should be created (empty if none
  // has been specified). UTF8 encoded string.
  string frame_name;

  // Whether the opener will be suppressed in the new window, in which case
  // scripting the new window is not allowed.
  bool opener_suppressed;

  // Whether the window should be opened in the foreground, background, etc.
  ui.mojom.WindowOpenDisposition disposition;

  // The URL that will be loaded in the new window (empty if none has been
  // specified).
  url.mojom.Url target_url;

  // The referrer that will be used to load |target_url| (empty if none has
  // been specified).
  blink.mojom.Referrer referrer;

  // The window features to use for the new window.
  blink.mojom.WindowFeatures features;
};

struct CreateNewWindowReply {
  // The ID of the view to be created. If the ID is MSG_ROUTING_NONE, then the
  // opener RenderFrame should not create a RenderView in its process.
  // MSG_ROUTING_NONE does not necessarily indicate failure; it may also occur
  // in cases where a window was created, but the opener relationship is
  // severed.
  int32 route_id;

  // The ID of the main frame hosted in the view.
  int32 main_frame_route_id;

  // The ID of the widget for the main frame.
  int32 main_frame_widget_route_id;

  // Duplicated from CreateNewWindowParams because legacy code.
  int64 cloned_session_storage_namespace_id;
};

// An opaque handle that keeps alive the associated render process even after
// the frame is detached. Used by resource requests with "keepalive" specified.
interface KeepAliveHandle {};

[Native]
struct DidCommitProvisionalLoadParams;

// Implemented by the frame server (i.e. the browser process). For messages that
// must be associated with the IPC channel.
interface FrameHost {
  // Sent by the renderer when it is creating a new window.  The browser creates
  // a tab for it.  If |reply.route_id| is MSG_ROUTING_NONE, the window couldn't
  // be created.
  [Sync] CreateNewWindow(CreateNewWindowParams params)
      => (CreateNewWindowReply reply);

  // Creates and returns a KeepAliveHandle.
  IssueKeepAliveHandle(KeepAliveHandle& keep_alive_handle);

  // Sent by the renderer when a navigation commits in the frame.
  DidCommitProvisionalLoad(
      DidCommitProvisionalLoadParams params);
};