// Copyright 2016 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 chrome.mojom;

import "mojo/public/mojom/base/string16.mojom";
import "mojo/public/mojom/base/time.mojom";
import "url/mojom/url.mojom";

[Native]
enum NTPLoggingEventType;

[Native]
enum NTPSuggestionsLoggingEventType;

[Native]
enum OmniboxFocusState;

[Native]
struct NTPTileImpression;

// Interface used to connect to the embedded search interface. This is a
// separate interface such that a reverse connection (|client| below) can be
// passed when connecting.
interface EmbeddedSearchConnector {
  // Connect to the interface. |embedded_search| is the connection which the
  // client will use to query the embedded search interface. |client| is the
  // connection used by the embedded search interface implementation to push
  // browser state updates to the client.
  Connect(associated EmbeddedSearch & embedded_search,
          pending_associated_remote<EmbeddedSearchClient> client);
};

// See components/omnibox/browser/autocomplete_match.h.
struct ACMatchClassification {
  uint32 offset;
  int32 style;
};

struct AutocompleteMatch {
  bool allowed_to_be_default_match;
  mojo_base.mojom.String16 contents;
  array<ACMatchClassification> contents_class;
  mojo_base.mojom.String16 description;
  array<ACMatchClassification> description_class;
  string destination_url;
  mojo_base.mojom.String16 inline_autocompletion;
  mojo_base.mojom.String16 fill_into_edit;
  bool is_search_type;  // Result of AutocompleteMatch::IsSearchType().
  string type;  // Result of AutocompleteMatchType::ToString().
  bool swap_contents_and_description;
  bool supports_deletion;
};

struct AutocompleteResult {
  mojo_base.mojom.String16 input;
  array<AutocompleteMatch> matches;
};

// Browser interface to support embedded search. Render frames connect to this
// interface to query browser data, such as the most visited pages.
// See http://dev.chromium.org/embeddedsearch
interface EmbeddedSearch {
  // Tells InstantExtended to set the omnibox focus state.
  FocusOmnibox(int32 page_seq_no, bool focus);

  // Tells InstantExtended to delete a most visited item.
  DeleteMostVisitedItem(int32 page_seq_no, url.mojom.Url url);

  // Tells InstantExtended to undo all most visited item deletions.
  UndoAllMostVisitedDeletions(int32 page_seq_no);

  // Tells InstantExtended to undo one most visited item deletion.
  UndoMostVisitedDeletion(int32 page_seq_no, url.mojom.Url url);

  // Tells InstantExtended to add a custom link. Returns true if successful.
  AddCustomLink(int32 page_seq_no, url.mojom.Url url, string title)
      => (bool success);

  // Tells InstantExtended to update a custom link. Returns true if successful.
  UpdateCustomLink(int32 page_seq_no,
                   url.mojom.Url url,
                   url.mojom.Url new_url,
                   string new_title) => (bool success);

  // Tells InstantExtended to reorder a custom link.
  ReorderCustomLink(int32 page_seq_no, url.mojom.Url url, int32 new_pos);

  // Tells InstantExtended to delete a custom link. Returns true if successful.
  DeleteCustomLink(int32 page_seq_no, url.mojom.Url url) => (bool success);

  // Tells InstantExtended to undo the previous custom link action (add, edit,
  // delete, etc.).
  UndoCustomLinkAction(int32 page_seq_no);

  // Tells InstantExtended to delete all custom links and use most visited sites
  // instead.
  ResetCustomLinks(int32 page_seq_no);

  // Tells InstantExtended to toggle between most visited items or custom links.
  ToggleMostVisitedOrCustomLinks(int32 page_seq_no);

  // Tells InstantExtended to toggle visibility of the shortcuts and notify
  // observers if |do_notify|.
  ToggleShortcutsVisibility(int32 page_seq_no, bool do_notify);

  // Logs events from InstantExtended New Tab Pages.
  LogEvent(int32 page_seq_no,
           NTPLoggingEventType event,
           mojo_base.mojom.TimeDelta time);

  // Logs events related to search suggestions from InstantExtended New Tab
  // Pages along with an integer value. These events currently include number
  // of suggestion chips shown and the index of chips that were clicked.
  LogSuggestionEventWithValue(int32 page_seq_no,
           NTPSuggestionsLoggingEventType event,
           int32 data,
           mojo_base.mojom.TimeDelta time);

  // Logs an impression on one of the Most Visited tile on the InstantExtended
  // New Tab Page.
  LogMostVisitedImpression(int32 page_seq_no, NTPTileImpression impression);

  // Logs a navigation on one of the Most Visited tile on the InstantExtended
  // New Tab Page.
  LogMostVisitedNavigation(int32 page_seq_no, NTPTileImpression impression);

  // Tells InstantExtended to paste text into the omnibox.  If text is empty,
  // the clipboard contents will be pasted. This causes the omnibox dropdown to
  // open.
  PasteAndOpenDropdown(int32 page_seq_no,
                       mojo_base.mojom.String16 text_to_be_pasted);

  // Updates the NTP custom background preferences.
  SetCustomBackgroundInfo(url.mojom.Url background_url,
                                         string attribution_line_1,
                                         string attribution_line_2,
                                         url.mojom.Url action_url,
                                         string collection_id);

  // Let the user select a local file for the NTP background.
  SelectLocalBackgroundImage();

  // Add a search suggestion task id to the blocklist.
  BlocklistSearchSuggestion(int32 task_version, int64 task_id);

  // Add a search suggestion task id and hash to the blocklist.
  BlocklistSearchSuggestionWithHash(int32 task_version, int64 task_id,
                                    array<uint8, 4> hash);

  // A search suggestion was selected, issue a new request with the suggestion
  // temporarily added to the blocklist.
  SearchSuggestionSelected(int32 task_version, int64 task_id,
                                    array<uint8, 4> hash);

  // Opts the user out of receiving search suggestions.
  OptOutOfSearchSuggestions();

  // Applies the default theme.
  ApplyDefaultTheme();

  // Applies autogenerated theme for the given color.
  ApplyAutogeneratedTheme(uint32 color);

  // Reverts applied theme changes.
  RevertThemeChanges();

  // Confirms applied theme changes.
  ConfirmThemeChanges();

  // Queries autocomplete matches from the browser.
  QueryAutocomplete(mojo_base.mojom.String16 input,
                    bool prevent_inline_autocomplete);

  // Deletes the AutocompleteMatch in the current results by |line| number if
  // it is deletable.
  DeleteAutocompleteMatch(uint8 line);

  // Cancels the current autocomplete query. Clears the result set if
  // |clear_result| is true.
  StopAutocomplete(bool clear_result);

  // Called when a user dismisses a promo.
  BlocklistPromo(string promo_id);
};

[Native]
enum OmniboxFocusChangeReason;

[Native]
struct InstantMostVisitedInfo;

[Native]
struct NtpTheme;

[Native]
struct SearchBoxTheme;

// Renderer interface used by the browser to push updates to the client. For
// example, the browser will tell the frame if the omnibox got focus.
interface EmbeddedSearchClient {
  // Updates the NTP realbox with the autocomplete results.
  AutocompleteResultChanged(AutocompleteResult result);

  // Update the page sequence number for the page.
  SetPageSequenceNumber(int32 page_seq_no);

  // Focus on the Omnibox has changed, the fakebox focus state may need to
  // be updated.
  FocusChanged(OmniboxFocusState new_focus_state,
               OmniboxFocusChangeReason reason);

  // The data for the NTP shortcuts has changed and shortcuts should be
  // reloaded.
  MostVisitedInfoChanged(InstantMostVisitedInfo most_visited_info);

  // Input into the Omnibox has started/stopped.
  SetInputInProgress(bool input_in_progress);

  // The NTP theme has changed; update accordingly.
  ThemeChanged(NtpTheme them);

  // A background image was selected from the file upload dialog.
  LocalBackgroundSelected();
};

// SearchBouncer tracks the NTP URL specified by the default search provider,
// which should be transferred back to the browser process for potential
// reassignment to an Instant renderer process.
interface SearchBouncer {
  SetNewTabPageURL(url.mojom.Url new_tab_page_url);
};