// Copyright 2021 The Chromium Embedded Framework 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 cef.mojom;

import "mojo/public/mojom/base/shared_memory.mojom";
import "mojo/public/mojom/base/string16.mojom";
import "mojo/public/mojom/base/values.mojom";
import "services/network/public/mojom/site_for_cookies.mojom";
import "services/network/public/mojom/url_request.mojom";
import "third_party/blink/public/mojom/loader/referrer.mojom";
import "ui/gfx/geometry/mojom/geometry.mojom";
import "url/mojom/url.mojom";

// Structure passed to UpdateDraggableRegions().
struct DraggableRegionEntry {
  gfx.mojom.Rect bounds;
  bool draggable;
};

// Structure passed to LoadRequest().
struct RequestParams {
  // Request method.
  string method;

  // The URL to be loaded.
  url.mojom.Url url;

  // The referrer for the request.
  blink.mojom.Referrer referrer;

  // Usually the URL of the document in the top-level window, which may be
  // checked by the third-party cookie blocking policy. Leaving it empty may
  // lead to undesired cookie blocking. Third-party cookie blocking can be
  // bypassed by setting site_for_cookies = url, but this should ideally
  // only be done if there really is no way to determine the correct value.
  network.mojom.SiteForCookies site_for_cookies;

  // Additional HTTP request headers.
  string headers;

  // net::URLRequest load flags (0 by default).
  int32 load_flags;

  // Upload data (may be empty).
  network.mojom.URLRequestBody? upload_data;
};

// Interface for communicating with a frame in the renderer process.
interface RenderFrame {
  // Browser process has received the FrameAttached() message.
  FrameAttachedAck();

  // Send a message to the render process.
  SendMessage(string name, mojo_base.mojom.Value arguments);

  // Send a shared memory region to the render process.
  SendSharedMemoryRegion(string name, mojo_base.mojom.ReadOnlySharedMemoryRegion region);

  // Send a command.
  SendCommand(string command);

  // Send a command that returns an async response.
  // The returned |response| format is command-specific and will be invalid if
  // an error occurred.
  SendCommandWithResponse(string command) =>
      (mojo_base.mojom.ReadOnlySharedMemoryRegion? response);

  // Send JavaScript for execution.
  SendJavaScript(mojo_base.mojom.String16 jsCode, string scriptUrl,
                 int32 startLine);

  // Load a request.
  LoadRequest(RequestParams params);

  // Loading has stopped.
  DidStopLoading();
};

// Interface for communicating with a frame in the browser process.
interface BrowserFrame {
  // Send a message to the browser process.
  SendMessage(string name, mojo_base.mojom.Value arguments);

  // Send a shared memory region to the browser process.
  SendSharedMemoryRegion(string name, mojo_base.mojom.ReadOnlySharedMemoryRegion region);

  // The render frame is ready to begin handling actions.
  FrameAttached(pending_remote<RenderFrame> render_frame,
                bool reattached);

  // The render frame has finished loading.
  DidFinishFrameLoad(url.mojom.Url validated_url, int32 http_status_code);

  // Draggable regions have updated.
  UpdateDraggableRegions(array<DraggableRegionEntry>? regions);
};

struct CrossOriginWhiteListEntry {
  string source_origin;
  string target_protocol;
  string target_domain;
  bool allow_target_subdomains;
};

struct NewRenderThreadInfo {
  array<CrossOriginWhiteListEntry>? cross_origin_whitelist_entries;
};

struct NewBrowserInfo {
  int32 browser_id;
  bool is_popup;
  bool is_windowless;
  bool is_guest_view;
  mojo_base.mojom.Value? extra_info;
};

// Interface for communicating with browser management in the browser process.
interface BrowserManager {
  // Retrieve info for a new RenderThread.
  [Sync]
  GetNewRenderThreadInfo() => (NewRenderThreadInfo info);

  // Retrieve info for a new CefBrowser.
  [Sync]
  GetNewBrowserInfo(int32 render_frame_routing_id) => (NewBrowserInfo info);
};

// Interface for communicating with browser management to the render process.
interface RenderManager {
  // Manage cross-origin whitelist contents during the render process lifespan.
  ModifyCrossOriginWhitelistEntry(bool add, CrossOriginWhiteListEntry entry);
  ClearCrossOriginWhitelist();
};