| /* Copyright 2013 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. |
| */ |
| |
| /** |
| * This file defines the Pepper equivalent of the <code>chrome.alarms</code> |
| * extension API. |
| */ |
| |
| label Chrome { |
| M33 = 0.1 |
| }; |
| |
| struct PP_Alarms_Alarm_Dev { |
| /** |
| * Name of this alarm. |
| */ |
| PP_Var name; |
| /** |
| * Time at which this alarm was scheduled to fire, in milliseconds past the |
| * epoch. For performance reasons, the alarm may have been delayed an |
| * arbitrary amount beyond this. |
| */ |
| double_t scheduled_time; |
| /** |
| * If set, the alarm is a repeating alarm and will fire again in |
| * <code>period_in_minutes</code> minutes. |
| */ |
| PP_Optional_Double_Dev period_in_minutes; |
| }; |
| |
| struct PP_Alarms_AlarmCreateInfo_Dev { |
| /** |
| * Time at which the alarm should fire, in milliseconds past the epoch. |
| */ |
| PP_Optional_Double_Dev when; |
| /** |
| * Length of time in minutes after which the |
| * <code>PP_Alarms_OnAlarm_Dev</code> event should fire. |
| */ |
| PP_Optional_Double_Dev delay_in_minutes; |
| /** |
| * If set, the <code>PP_Alarms_OnAlarm_Dev</code> event should fire every |
| * <code>period_in_minutes</code> minutes after the initial event specified by |
| * <code>when</code> or <code>delay_in_minutes</code>. If not set, the alarm |
| * will only fire once. |
| */ |
| PP_Optional_Double_Dev period_in_minutes; |
| }; |
| |
| struct PP_Alarms_Alarm_Array_Dev { |
| uint32_t size; |
| [size_is(count)] PP_Alarms_Alarm_Dev[] elements; |
| }; |
| |
| /** |
| * Fired when an alarm has elapsed. Useful for event pages. |
| * |
| * @param[in] listener_id The listener ID. |
| * @param[inout] user_data The opaque pointer that was used when registering the |
| * listener. |
| * @param[in] alarm The alarm that has elapsed. |
| */ |
| typedef void PP_Alarms_OnAlarm_Dev( |
| [in] uint32_t listener_id, |
| [inout] mem_t user_data, |
| [in] PP_Alarms_Alarm_Dev alarm); |
| |
| interface PPB_Alarms_Dev { |
| /** |
| * Creates an alarm. Near the time(s) specified by <code>alarm_info</code>, |
| * the <code>PP_Alarms_OnAlarm_Dev</code> event is fired. If there is another |
| * alarm with the same name (or no name if none is specified), it will be |
| * cancelled and replaced by this alarm. |
| * |
| * In order to reduce the load on the user's machine, Chrome limits alarms |
| * to at most once every 1 minute but may delay them an arbitrary amount more. |
| * That is, setting |
| * <code>PP_Alarms_AlarmCreateInfo_Dev.delay_in_minutes</code> or |
| * <code>PP_Alarms_AlarmCreateInfo_Dev.period_in_minutes</code> to less than |
| * <code>1</code> will not be honored and will cause a warning. |
| * <code>PP_Alarms_AlarmCreateInfo_Dev.when</code> can be set to less than 1 |
| * minute after "now" without warning but won't actually cause the alarm to |
| * fire for at least 1 minute. |
| * |
| * To help you debug your app or extension, when you've loaded it unpacked, |
| * there's no limit to how often the alarm can fire. |
| * |
| * @param[in] instance A <code>PP_Instance</code>. |
| * @param[in] name A string or undefined <code>PP_Var</code>. Optional name to |
| * identify this alarm. Defaults to the empty string. |
| * @param[in] alarm_info Describes when the alarm should fire. The initial |
| * time must be specified by either <code>when</code> or |
| * <code>delay_in_minutes</code> (but not both). If |
| * <code>period_in_minutes</code> is set, the alarm will repeat every |
| * <code>period_in_minutes</code> minutes after the initial event. If neither |
| * <code>when</code> or <code>delay_in_minutes</code> is set for a repeating |
| * alarm, <code>period_in_minutes</code> is used as the default for |
| * <code>delay_in_minutes</code>. |
| */ |
| void Create( |
| [in] PP_Instance instance, |
| [in] PP_Var name, |
| [in] PP_Alarms_AlarmCreateInfo_Dev alarm_info); |
| |
| /** |
| * Retrieves details about the specified alarm. |
| * |
| * @param[in] instance A <code>PP_Instance</code>. |
| * @param[in] name A string or undefined <code>PP_Var</code>. The name of the |
| * alarm to get. Defaults to the empty string. |
| * @param[out] alarm A <code>PP_Alarms_Alarm_Dev</code> struct to store the |
| * output result. |
| * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon |
| * completion. |
| * |
| * @return An error code from <code>pp_errors.h</code> |
| */ |
| int32_t Get( |
| [in] PP_Instance instance, |
| [in] PP_Var name, |
| [out] PP_Alarms_Alarm_Dev alarm, |
| [in] PP_CompletionCallback callback); |
| |
| /** |
| * Gets an array of all the alarms. |
| * |
| * @param[in] instance A <code>PP_Instance</code>. |
| * @param[out] alarms A <code>PP_Alarms_Alarm_Array_Dev</code> to store the |
| * output result. |
| * @param[in] array_allocator A <code>PP_ArrayOutput</code> to allocate memory |
| * for <code>alarms</code>. |
| * @param[in] callback A <code>PP_CompletionCallback</code> to be called upon |
| * completion. |
| * |
| * @return An error code from <code>pp_errors.h</code> |
| */ |
| int32_t GetAll( |
| [in] PP_Instance instance, |
| [out] PP_Alarms_Alarm_Array_Dev alarms, |
| [in] PP_ArrayOutput array_allocator, |
| [in] PP_CompletionCallback callback); |
| |
| /** |
| * Clears the alarm with the given name. |
| * |
| * @param[in] instance A <code>PP_Instance</code>. |
| * @param[in] name A string or undefined <code>PP_Var</code>. The name of the |
| * alarm to clear. Defaults to the empty string. |
| */ |
| void Clear( |
| [in] PP_Instance instance, |
| [in] PP_Var name); |
| |
| /** |
| * Clears all alarms. |
| * |
| * @param[in] instance A <code>PP_Instance</code>. |
| */ |
| void ClearAll( |
| [in] PP_Instance instance); |
| |
| /** |
| * Registers <code>PP_Alarms_OnAlarm_Dev</code> event. |
| * |
| * @param[in] instance A <code>PP_Instance</code>. |
| * @param[in] callback The callback to receive notifications. |
| * @param[inout] user_data An opaque pointer that will be passed to |
| * <code>callback</code>. |
| * |
| * @return A listener ID, or 0 if failed. |
| * |
| * TODO(yzshen): add a PPB_Events_Dev interface for unregistering: |
| * void UnregisterListener(PP_instance instance, uint32_t listener_id); |
| */ |
| uint32_t AddOnAlarmListener( |
| [in] PP_Instance instance, |
| [in] PP_Alarms_OnAlarm_Dev callback, |
| [inout] mem_t user_data); |
| }; |