From 4aafd69859f1da550950a4e2468f9aa5ac4b8d23 Mon Sep 17 00:00:00 2001 From: Zoltan Kis Date: Wed, 23 Sep 2020 21:39:19 +0300 Subject: [PATCH] Rename onerror to onreaderror. Replace activated reader list with pending read tuple. Signed-off-by: Zoltan Kis --- index.html | 60 +++++++++++++++++++++++------------------------------- 1 file changed, 25 insertions(+), 35 deletions(-) diff --git a/index.html b/index.html index 6be9b1e..92d1d5a 100644 --- a/index.html +++ b/index.html @@ -1135,13 +1135,13 @@

Handle scanning errors

This example shows what happens when {{NDEFReader/scan}} promise rejects and - {{NDEFReader/onerror}} is fired. + {{NDEFReader/onreadingerror}} is fired. 

       const ndef = new NDEFReader();
       ndef.scan().then(() => {
         console.log("Scan started successfully.");
-        ndef.onerror = event => {
+        ndef.onreadingerror = event => {
           console.log("Error! Cannot read data from the NFC tag. Try a different one?");
         };
         ndef.onreading = event => {
@@ -1988,7 +1988,7 @@ 
The record type string

     interface NDEFReader : EventTarget {
       constructor();
 
-      attribute EventHandler onerror;
+      attribute EventHandler onreadingerror;
       attribute EventHandler onreading;
 
       Promise<undefined> scan(optional NDEFScanOptions options={});
@@ -2079,7 +2079,7 @@ 
The record type string

     which is called to notify that new reading is available.
   

   

-    The onerror is an {{EventHandler}}
+    The onreadingerror is an {{EventHandler}}
     which is called to notify that an error happened during reading.
   

   
NFC state associated with the settings object

@@ -2109,10 +2109,11 @@ 
The record type string

       
      
      
-      [[\ActivatedReaderList]]
+      [[\PendingRead]]
       empty set
       
-        A set of {{NDEFReader}} instances.
+        A <|promise:Promise|, |reader:NDEFReader|> tuple where |promise|
+        holds a {{Promise}} and |reader| holds an {{NDEFReader}}.
       
      
      
@@ -2126,8 +2127,8 @@ 
The record type string

     
   
   

-    The activated reader objects is the value of the
-    [[\ActivatedReaderList]] internal slot.
+    The pending read tuple is the value of the
+    [[\PendingRead]] internal slot.
   

   

     The pending write tuple is the value of the
@@ -2270,7 +2271,7 @@ 
The record type string

       Stop the dispatch NFC content steps.
     
     
  • 
-      Clear the activated reader objects.
+      Clear the pending read tuple.
     
    • 
     
  • 
       Release the NFC resources associated with |nfc| on the
@@ -3421,9 +3422,9 @@ 
    Writing content
    
       accessible to the client.
     
    
     
    
-      If there are any {{NDEFReader}} instances in activated reader objects
-      then the UA MUST listen to NDEF messages on all connected
-      NFC adapters.
+      If there is a  pending read tuple whose |reader| is an
+      {{NDEFReader}} instance, then the UA MUST listen to
+      NDEF messages on all connected NFC adapters.
     
    
 
     
     
    The scan() method
    
@@ -3464,12 +3465,10 @@ 
    Writing content
    
             abort steps to |reader|.[[\ScanAbortSignal]]:
             
      
               
    1. 
-                Remove the {{NDEFReader}} instance from the
-                activated reader objects.
+                Clear the pending read tuple.
               
      2. 
               
    2. 
-                If the activated reader objects [= list/is empty =],
-                then make a request to stop listening to NDEF messages
+                Make a request to stop listening to NDEF messages
                 on all NFC adapters.
               
      3. 
             
    
@@ -3495,7 +3494,7 @@ 
    Writing content
    
                 and abort these steps.
               
    • 
               
  • 
-                Add |reader| to the activated reader objects.
+                Set the pending read tuple to (|p|, |reader|).
               
    • 
               
  • 
                 Resolve |p|.
@@ -3520,14 +3519,10 @@ 
    Writing content
    
         If the NFC tag in proximity range does not expose NDEF
         technology for reading or formatting, run the following sub-steps:
         
      
-          
    1. [= list/For each =]
-            {{NDEFReader}} instance |reader:NDEFReader| in the
-            activated reader objects, run the following sub-steps:
-            
        
-              
      1. 
-                Fire an event named "`error`" at |reader|.
-              
        2. 
-            
      
+          
    2. 
+            If there is a pending read tuple whose |reader| is an
+            {{NDEFReader}} instance, fire an event named "`readingerror`" at
+            |reader|.
           
      3. 
           
    3. 
             Abort these steps.
@@ -3594,16 +3589,11 @@ 
      Writing content
      
     
      
     
        
       
      1. 
-        [= list/For each =] {{NDEFReader}} instance |reader:NDEFReader| in
-        the activated reader objects,
-        
          
-          
        1. 
-            fire an event named "`reading`" at |reader| using
-            NDEFReadingEvent with its serialNumber attribute
-            initialized to |serialNumber| and message attribute
-            initialized to |message|.
-          
          2. 
-        
        
+        If there is a pending read tuple whose |reader| is an
+        {{NDEFReader}} instance, fire an event named "`reading`" at
+        |reader| using NDEFReadingEvent with its serialNumber
+        attribute initialized to |serialNumber| and message attribute
+        initialized to |message|.
       
        2. 
     
      
     
    •