| // 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. |
| |
| #include "ui/accessibility/ax_active_popup.h" |
| |
| namespace ui { |
| |
| namespace { |
| |
| absl::optional<AXNodeID>& GetActivePopupAXUniqueIdInstance() { |
| // Keeps track of the unique ID that can be used to retrieve the |
| // `ViewAccessibility` object that is handling the accessibility for the |
| // currently active autofill popup. This singleton is used for communicating |
| // the live status of the autofill popup between web contents and Views. The |
| // assumption here is that only one autofill popup can exist at a time. |
| static absl::optional<AXNodeID> active_popup_ax_unique_id; |
| return active_popup_ax_unique_id; |
| } |
| |
| } // namespace |
| |
| absl::optional<AXNodeID> GetActivePopupAxUniqueId() { |
| return GetActivePopupAXUniqueIdInstance(); |
| } |
| |
| void SetActivePopupAxUniqueId(absl::optional<AXNodeID> ax_unique_id) { |
| // When an instance of autofill popup hides, the caller of popup hide should |
| // make sure active_popup_ax_unique_id is cleared. The assumption is that |
| // there can only be one active autofill popup existing at a time. If on |
| // popup showing, we encounter active_popup_ax_unique_id is already set, |
| // this would indicate two autofill popups are showing at the same time or |
| // previous on popup hide call did not clear the variable, so we should fail |
| // via DCHECK here. |
| DCHECK(!GetActivePopupAXUniqueIdInstance()); |
| |
| GetActivePopupAXUniqueIdInstance() = ax_unique_id; |
| } |
| |
| void ClearActivePopupAxUniqueId() { |
| GetActivePopupAXUniqueIdInstance() = absl::nullopt; |
| } |
| |
| } // namespace ui |