WebAPI/LogAPI

Use Cases

To record the history of user activity with the device, particularly with communication services (Phone Calls, Messages, Social Networks, etc.)

Consumers

• Comms Log Application (Global for the user and per-contact)

Producers

• Dialer, SMS, e-mail, Facebook, Twitter, ...

WebIDL

interface LogManager : EventTarget  {
    DOMRequest put(LogEntry entry);
    DOMRequest delete(DOMString entryId);
    DOMRequest clear(LogClearOptions coptions);
    // Entries are always returned ordered by timestamp (desc)
    DOMRequest find(optional LogFindOptions options,optional IteratorOptions iopts);
        
   attribute Function onentryadded;
 };

// The iterator will be initialized with a window indicated in the iteration parameters
interface DOMIterator {
  DOMRequest next(optional unsigned short n);   // returns the next window
  attribute boolean hasMore;
  attribute unsigned long position; // points always to the element that will be the first returned by the window 
  readonly attribute unsigned long count;  // total number of objects
  readonly attribute any[] values;   // Contains the current window of objects
};

dictionary LogFindOptions {
   attribute DOMString contactId;
   attribute Date from;
   attribute Date to;
   attribute DOMString service;
};

dictionary IteratorOptions {
  attribute unsigned long maxRecords;  // Max number of records to be returned
  attribute unsigned long chunkSize:     // Chunk size for the iterator
};

interface LogEntryProperties {
   attribute DOMString type;  // possible values: ['incoming', 'outgoing'']
   attribute DOMString status;  // [missed, new]         
   attribute DOMString[] contactId;  // ContactId     
   attribute DOMString[] tel;  // Tel number if not in contacts
   attribute DOMString objectId;  // Object id (for example SMS message on the SMS database)   
   attribute DOMString service;  // oneOf ['SMS', 'Telephony', 'Facebook', 'Twitter'] 
   attribute DOMString title;             
   attribute DOMString description;
   attribute any extra;  // Any extra data to be used by applications
};

[Constructor(LogEntryProperties properties)]
interface LogEntry : LogEntryProperties {
   readonly attribute DOMString id;
   readonly attribute DOMTimestamp timestamp;                  // When happened
};

Examples

Get latest global 20 log entries (ordered by timestamp, newest to oldest)

var filter = {maxNumber: 20};
var req = navigator.mozLog.find(filter);
req.onsuccess = function(e) {
  var iterator = e.target.result;
  
  var req2 = iterator.next(10);
    req2.onsuccess = function(e) {
      var entries = e.target.result;
      if(iterator.hasMore) {
        iterator.next(10);
      }
  }
}

Get latest 10 log entries corresponding to a contactId