Bug 1310078 - Implement valueAsNumber and valueAsDate for <input type=datetime-local>

6 files changed, 351 insertions, 26 deletions

diff --git a/dom/html/HTMLInputElement.cpp b/dom/html/HTMLInputElement.cpp
index 62f194493..b9efa0066 100644
--- a/dom/html/HTMLInputElement.cpp
+++ b/dom/html/HTMLInputElement.cpp
@@ -1918,6 +1918,22 @@ HTMLInputElement::ConvertStringToNumber(nsAString& aValue,
         aResultValue = Decimal::fromDouble(days * kMsPerDay);
         return true;
       }
+    case NS_FORM_INPUT_DATETIME_LOCAL:
+      {
+        uint32_t year, month, day, timeInMs;
+        if (!ParseDateTimeLocal(aValue, &year, &month, &day, &timeInMs)) {
+          return false;
+        }
+
+        JS::ClippedTime time = JS::TimeClip(JS::MakeDate(year, month - 1, day,
+                                                         timeInMs));
+        if (!time.isValid()) {
+          return false;
+        }
+
+        aResultValue = Decimal::fromDouble(time.toDouble());
+        return true;
+      }
     default:
       MOZ_ASSERT(false, "Unrecognized input type");
       return false;
@@ -2107,21 +2123,17 @@ HTMLInputElement::ConvertNumberToString(Decimal aValue,
       }
     case NS_FORM_INPUT_TIME:
       {
+        aValue = aValue.floor();
         // Per spec, we need to truncate |aValue| and we should only represent
         // times inside a day [00:00, 24:00[, which means that we should do a
         // modulo on |aValue| using the number of milliseconds in a day (86400000).
-        uint32_t value = NS_floorModulo(aValue.floor(), Decimal(86400000)).toDouble();
-
-        uint16_t milliseconds = value % 1000;
-        value /= 1000;
-
-        uint8_t seconds = value % 60;
-        value /= 60;
-
-        uint8_t minutes = value % 60;
-        value /= 60;
+        uint32_t value =
+          NS_floorModulo(aValue, Decimal::fromDouble(kMsPerDay)).toDouble();
 
-        uint8_t hours = value;
+        uint16_t milliseconds, seconds, minutes, hours;
+        if (!GetTimeFromMs(value, &hours, &minutes, &seconds, &milliseconds)) {
+          return false;
+        }
 
         if (milliseconds != 0) {
           aResultString.AppendPrintf("%02d:%02d:%02d.%03d",
@@ -2191,6 +2203,42 @@ HTMLInputElement::ConvertNumberToString(Decimal aValue,
         aResultString.AppendPrintf("%04.0f-W%02d", year, week);
         return true;
       }
+    case NS_FORM_INPUT_DATETIME_LOCAL:
+      {
+        aValue = aValue.floor();
+
+        uint32_t timeValue =
+          NS_floorModulo(aValue, Decimal::fromDouble(kMsPerDay)).toDouble();
+
+        uint16_t milliseconds, seconds, minutes, hours;
+        if (!GetTimeFromMs(timeValue,
+                           &hours, &minutes, &seconds, &milliseconds)) {
+          return false;
+        }
+
+        double year = JS::YearFromTime(aValue.toDouble());
+        double month = JS::MonthFromTime(aValue.toDouble());
+        double day = JS::DayFromTime(aValue.toDouble());
+
+        if (IsNaN(year) || IsNaN(month) || IsNaN(day)) {
+          return false;
+        }
+
+        if (milliseconds != 0) {
+          aResultString.AppendPrintf("%04.0f-%02.0f-%02.0fT%02d:%02d:%02d.%03d",
+                                     year, month + 1, day, hours, minutes,
+                                     seconds, milliseconds);
+        } else if (seconds != 0) {
+          aResultString.AppendPrintf("%04.0f-%02.0f-%02.0fT%02d:%02d:%02d",
+                                     year, month + 1, day, hours, minutes,
+                                     seconds);
+        } else {
+          aResultString.AppendPrintf("%04.0f-%02.0f-%02.0fT%02d:%02d",
+                                     year, month + 1, day, hours, minutes);
+        }
+
+        return true;
+      }
     default:
       MOZ_ASSERT(false, "Unrecognized input type");
       return false;
@@ -2201,8 +2249,7 @@ HTMLInputElement::ConvertNumberToString(Decimal aValue,
 Nullable<Date>
 HTMLInputElement::GetValueAsDate(ErrorResult& aRv)
 {
-  // TODO: this is temporary until bug 888331 is fixed.
-  if (!IsDateTimeInputType(mType) || mType == NS_FORM_INPUT_DATETIME_LOCAL) {
+  if (!IsDateTimeInputType(mType)) {
     return Nullable<Date>();
   }
 
@@ -2260,6 +2307,19 @@ HTMLInputElement::GetValueAsDate(ErrorResult& aRv)
 
       return Nullable<Date>(Date(time));
     }
+    case NS_FORM_INPUT_DATETIME_LOCAL:
+    {
+      uint32_t year, month, day, timeInMs;
+      nsAutoString value;
+      GetNonFileValueInternal(value);
+      if (!ParseDateTimeLocal(value, &year, &month, &day, &timeInMs)) {
+        return Nullable<Date>();
+      }
+
+      JS::ClippedTime time = JS::TimeClip(JS::MakeDate(year, month - 1, day,
+                                                       timeInMs));
+      return Nullable<Date>(Date(time));
+    }
   }
 
   MOZ_ASSERT(false, "Unrecognized input type");
@@ -2270,8 +2330,7 @@ HTMLInputElement::GetValueAsDate(ErrorResult& aRv)
 void
 HTMLInputElement::SetValueAsDate(Nullable<Date> aDate, ErrorResult& aRv)
 {
-  // TODO: this is temporary until bug 888331 is fixed.
-  if (!IsDateTimeInputType(mType) || mType == NS_FORM_INPUT_DATETIME_LOCAL) {
+  if (!IsDateTimeInputType(mType)) {
     aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
     return;
   }
@@ -5385,6 +5444,29 @@ HTMLInputElement::MaximumWeekInYear(uint32_t aYear) const
 }
 
 bool
+HTMLInputElement::GetTimeFromMs(double aValue, uint16_t* aHours,
+                                uint16_t* aMinutes, uint16_t* aSeconds,
+                                uint16_t* aMilliseconds) const {
+  MOZ_ASSERT(aValue >= 0 && aValue < kMsPerDay,
+             "aValue must be milliseconds within a day!");
+
+  uint32_t value = floor(aValue);
+
+  *aMilliseconds = value % 1000;
+  value /= 1000;
+
+  *aSeconds = value % 60;
+  value /= 60;
+
+  *aMinutes = value % 60;
+  value /= 60;
+
+  *aHours = value;
+
+  return true;
+}
+
+bool
 HTMLInputElement::IsValidWeek(const nsAString& aValue) const
 {
   uint32_t year, week;
diff --git a/dom/html/HTMLInputElement.h b/dom/html/HTMLInputElement.h
index 9baaffb63..56f40a60a 100644
--- a/dom/html/HTMLInputElement.h
+++ b/dom/html/HTMLInputElement.h
@@ -1075,11 +1075,7 @@ protected:
   /**
    * Returns if valueAsNumber attribute applies for the current type.
    */
-  bool DoesValueAsNumberApply() const
-  {
-    // TODO: this is temporary until bug 888331 is fixed.
-    return DoesMinMaxApply() && mType != NS_FORM_INPUT_DATETIME_LOCAL;
-  }
+  bool DoesValueAsNumberApply() const { return DoesMinMaxApply(); }
 
   /**
    * Returns if autocomplete attribute applies for the current type.
@@ -1287,6 +1283,7 @@ protected:
    * https://html.spec.whatwg.org/multipage/infrastructure.html#valid-normalised-local-date-and-time-string
    */
   void NormalizeDateTimeLocal(nsAString& aValue) const;
+
   /**
    * This methods returns the number of days since epoch for a given year and
    * week.
@@ -1318,6 +1315,13 @@ protected:
   uint32_t MaximumWeekInYear(uint32_t aYear) const;
 
   /**
+   * This method converts aValue (milliseconds within a day) to hours, minutes,
+   * seconds and milliseconds.
+   */
+  bool GetTimeFromMs(double aValue, uint16_t* aHours, uint16_t* aMinutes,
+                     uint16_t* aSeconds, uint16_t* aMilliseconds) const;
+
+  /**
    * This methods returns true if it's a leap year.
    */
   bool IsLeapYear(uint32_t aYear) const;
diff --git a/dom/html/test/forms/test_valueasdate_attribute.html b/dom/html/test/forms/test_valueasdate_attribute.html
index 8c19fefd9..65cab3b8e 100644
--- a/dom/html/test/forms/test_valueasdate_attribute.html
+++ b/dom/html/test/forms/test_valueasdate_attribute.html
@@ -47,8 +47,7 @@ var validTypes =
   ["color", false],
   ["month", true],
   ["week", true],
-  // TODO: temporary set to false until bug 888331 is fixed.
-  ["datetime-local", false],
+  ["datetime-local", true],
 ];
 
 function checkAvailability()
@@ -622,6 +621,107 @@ function checkWeekSet()
   }
 }
 
+function checkDatetimeLocalGet()
+{
+  var validData =
+  [
+    // Simple cases.
+    [ "2016-12-27T10:30",          Date.UTC(2016, 11, 27, 10, 30, 0)       ],
+    [ "2016-12-27T10:30:40",       Date.UTC(2016, 11, 27, 10, 30, 40)      ],
+    [ "2016-12-27T10:30:40.567",   Date.UTC(2016, 11, 27, 10, 30, 40, 567) ],
+    [ "1969-12-31T12:00:00",       Date.UTC(1969, 11, 31, 12, 0, 0)        ],
+    [ "1970-01-01T00:00",          0                                       ],
+    // Leap years.
+    [ "1804-02-29 12:34",          Date.UTC(1804, 1, 29, 12, 34, 0)        ],
+    [ "2016-02-29T12:34",          Date.UTC(2016, 1, 29, 12, 34, 0)        ],
+    [ "2016-12-31T12:34:56",       Date.UTC(2016, 11, 31, 12, 34, 56)      ],
+    [ "2016-01-01T12:34:56.789",   Date.UTC(2016, 0, 1, 12, 34, 56, 789)   ],
+    [ "2017-01-01 12:34:56.789",   Date.UTC(2017, 0, 1, 12, 34, 56, 789)   ],
+    // Maximum valid datetime-local (limited by the ecma date object range).
+    [ "275760-09-13T00:00",        8640000000000000                        ],
+    // Minimum valid datetime-local (limited by the input element minimum valid value).
+    [ "0001-01-01T00:00",          -62135596800000                         ],
+  ];
+
+  var invalidData =
+  [
+    [ "invaliddateime-local" ],
+    [ "0000-01-01T00:00"     ],
+    [ "2016-12-25T00:00Z"    ],
+    [ "2015-02-29T12:34"     ],
+    [ "1-1-1T12:00"          ],
+    [ ""                     ],
+    // This datetime-local is valid for the input element, but is out of the
+    // date object range. In this case, on getting valueAsDate, a Date object
+    // will be created, but it will have a NaN internal value, and will return
+    // the string "Invalid Date".
+    [ "275760-09-13T12:00", true ],
+  ];
+
+  element.type = "datetime-local";
+  for (let data of validData) {
+    element.value = data[0];
+    is(element.valueAsDate.valueOf(), data[1],
+       "valueAsDate should return the " +
+       "valid date object representing this datetime-local");
+  }
+
+  for (let data of invalidData) {
+    element.value = data[0];
+    if (data[1]) {
+      is(String(element.valueAsDate), "Invalid Date",
+         "valueAsDate should return an invalid Date object "  +
+         "when the element value is not a valid datetime-local");
+    } else {
+      is(element.valueAsDate, null,
+         "valueAsDate should return null "  +
+         "when the element value is not a valid datetime-local");
+    }
+  }
+}
+
+function checkDatetimeLocalSet()
+{
+  var testData =
+  [
+    // Simple cases.
+    [ Date.UTC(2016, 11, 27, 10, 30, 0),       "2016-12-27T10:30"        ],
+    [ Date.UTC(2016, 11, 27, 10, 30, 30),      "2016-12-27T10:30:30"     ],
+    [ Date.UTC(1999, 11, 31, 23, 59, 59),      "1999-12-31T23:59:59"     ],
+    [ Date.UTC(1999, 11, 31, 23, 59, 59, 999), "1999-12-31T23:59:59.999" ],
+    [ Date.UTC(123456, 7, 8, 9, 10),           "123456-08-08T09:10"      ],
+    [ 0,                                       "1970-01-01T00:00"        ],
+    // Maximum valid datetime-local (limited by the ecma date object range).
+    [ 8640000000000000,      "275760-09-13T00:00"      ],
+    // Minimum valid datetime-local (limited by the input element minimum valid value).
+    [ -62135596800000,       "0001-01-01T00:00"        ],
+    // Leap years.
+    [ Date.UTC(1804, 1, 29, 12, 34, 0),        "1804-02-29T12:34"        ],
+    [ Date.UTC(2016, 1, 29, 12, 34, 0),        "2016-02-29T12:34"        ],
+    [ Date.UTC(2016, 11, 31, 12, 34, 56),      "2016-12-31T12:34:56"     ],
+    [ Date.UTC(2016, 0, 1, 12, 34, 56, 789),   "2016-01-01T12:34:56.789" ],
+    [ Date.UTC(2017, 0, 1, 12, 34, 56, 789),   "2017-01-01T12:34:56.789" ],
+    // "Values must be truncated to valid datetime-local"
+    [ 123.123456789123,      "1970-01-01T00:00:00.123" ],
+    [ 1e-1,                  "1970-01-01T00:00"        ],
+    [ -1.1,                  "1969-12-31T23:59:59.999" ],
+    [ -345600000,            "1969-12-28T00:00"        ],
+    // Negative years, this is out of range for the input element,
+    // the corresponding datetime-local string is the empty string
+    [ -62135596800001,       ""                        ],
+  ];
+
+  element.type = "datetime-local";
+  for (let data of testData) {
+    element.valueAsDate = new Date(data[0]);
+    is(element.value, data[1], "valueAsDate should set the value to " +
+                               data[1]);
+    element.valueAsDate = new testFrame.Date(data[0]);
+    is(element.value, data[1], "valueAsDate with other-global date should " +
+                               "set the value to " + data[1]);
+  }
+}
+
 checkAvailability();
 checkGarbageValues();
 checkWithBustedPrototype();
@@ -642,6 +742,10 @@ checkMonthSet();
 checkWeekGet();
 checkWeekSet();
 
+// Test <input type='datetime-local'>.
+checkDatetimeLocalGet();
+checkDatetimeLocalSet();
+
 </script>
 </pre>
 </body>
diff --git a/dom/html/test/forms/test_valueasnumber_attribute.html b/dom/html/test/forms/test_valueasnumber_attribute.html
index d7471502b..2660fc7ed 100644
--- a/dom/html/test/forms/test_valueasnumber_attribute.html
+++ b/dom/html/test/forms/test_valueasnumber_attribute.html
@@ -46,8 +46,7 @@ function checkAvailability()
     ["color", false],
     ["month", true],
     ["week", true],
-     // TODO: temporary set to false until bug 888331 is fixed.
-    ["datetime-local", false],
+    ["datetime-local", true],
   ];
 
   var element = document.createElement('input');
@@ -612,7 +611,6 @@ function checkWeekGet()
   var element = document.createElement('input');
   element.type = "week";
   for (let data of validData) {
-    dump("Test: " + data[0]);
     element.value = data[0];
     is(element.valueAsNumber, data[1], "valueAsNumber should return the " +
        "integer value representing this week");
@@ -698,7 +696,120 @@ function checkWeekSet()
 
     try {
       element.valueAsNumber = data[0];
-      is(element.value, data[1], "valueAsNumber should set the value to " + data[1]);
+      is(element.value, data[1], "valueAsNumber should set the value to " +
+                                 data[1]);
+    } catch(e) {
+      caught = true;
+    }
+
+    if (data[2]) {
+      ok(caught, "valueAsNumber should have thrown");
+      is(element.value, data[1], "the value should not have changed");
+    } else {
+      ok(!caught, "valueAsNumber should not have thrown");
+    }
+  }
+}
+
+function checkDatetimeLocalGet() {
+  var validData =
+  [
+    // Simple cases.
+    [ "2016-12-20T09:58",          Date.UTC(2016, 11, 20, 9, 58)          ],
+    [ "2016-12-20T09:58:30",       Date.UTC(2016, 11, 20, 9, 58, 30)      ],
+    [ "2016-12-20T09:58:30.123",   Date.UTC(2016, 11, 20, 9, 58, 30, 123) ],
+    [ "2017-01-01T10:00",          Date.UTC(2017, 0, 1, 10, 0, 0)         ],
+    [ "1969-12-31T12:00:00",       Date.UTC(1969, 11, 31, 12, 0, 0)       ],
+    [ "1970-01-01T00:00",          0                                      ],
+    // Leap years.
+    [ "1804-02-29 12:34",          Date.UTC(1804, 1, 29, 12, 34, 0)       ],
+    [ "2016-02-29T12:34",          Date.UTC(2016, 1, 29, 12, 34, 0)       ],
+    [ "2016-12-31T12:34:56",       Date.UTC(2016, 11, 31, 12, 34, 56)     ],
+    [ "2016-01-01T12:34:56.789",   Date.UTC(2016, 0, 1, 12, 34, 56, 789)  ],
+    [ "2017-01-01 12:34:56.789",   Date.UTC(2017, 0, 1, 12, 34, 56, 789)  ],
+    // Maximum valid datetime-local (limited by the ecma date object range).
+    [ "275760-09-13T00:00",        8640000000000000                       ],
+    // Minimum valid datetime-local (limited by the input element minimum valid value).
+    [ "0001-01-01T00:00",          -62135596800000                        ],
+  ];
+
+  var invalidData =
+  [
+    "invaliddatetime-local",
+    "0000-01-01T00:00",
+    "2016-12-25T00:00Z",
+    "2015-02-29T12:34",
+    "1-1-1T12:00",
+    // Out of range.
+    "275760-09-13T12:00",
+  ];
+
+  var element = document.createElement('input');
+  element.type = "datetime-local";
+  for (let data of validData) {
+    element.value = data[0];
+    is(element.valueAsNumber, data[1], "valueAsNumber should return the " +
+       "integer value representing this datetime-local");
+  }
+
+  for (let data of invalidData) {
+    element.value = data;
+    ok(isNaN(element.valueAsNumber), "valueAsNumber should return NaN "  +
+       "when the element value is not a valid datetime-local");
+  }
+}
+
+function checkDatetimeLocalSet()
+{
+  var testData =
+  [
+    // Simple cases.
+    [ Date.UTC(2016, 11, 20, 9, 58, 0),       "2016-12-20T09:58",       ],
+    [ Date.UTC(2016, 11, 20, 9, 58, 30),      "2016-12-20T09:58:30"     ],
+    [ Date.UTC(2016, 11, 20, 9, 58, 30, 123), "2016-12-20T09:58:30.123" ],
+    [ Date.UTC(2017, 0, 1, 10, 0, 0),         "2017-01-01T10:00"        ],
+    [ Date.UTC(1969, 11, 31, 12, 0, 0),       "1969-12-31T12:00"        ],
+    [ 0,                                      "1970-01-01T00:00"        ],
+    // Maximum valid week (limited by the ecma date object range).
+    [ 8640000000000000,  "275760-09-13T00:00"      ],
+    // Minimum valid datetime-local (limited by the input element minimum valid value).
+    [ -62135596800000,   "0001-01-01T00:00"        ],
+    // Leap years.
+    [ Date.UTC(1804, 1, 29, 12, 34, 0),       "1804-02-29T12:34"        ],
+    [ Date.UTC(2016, 1, 29, 12, 34, 0),       "2016-02-29T12:34"        ],
+    [ Date.UTC(2016, 11, 31, 12, 34, 56),     "2016-12-31T12:34:56"     ],
+    [ Date.UTC(2016, 0, 1, 12, 34, 56, 789),  "2016-01-01T12:34:56.789" ],
+    [ Date.UTC(2017, 0, 1, 12, 34, 56, 789),  "2017-01-01T12:34:56.789" ],
+    // "Values must be truncated to valid datetime-local"
+    [ 0.3,               "1970-01-01T00:00"        ],
+    [ 1e-1,              "1970-01-01T00:00"        ],
+    [ -1  ,              "1969-12-31T23:59:59.999" ],
+    [ -345600000,        "1969-12-28T00:00"        ],
+    // Invalid numbers.
+    // Those are implicitly converted to numbers
+    [ "",                "1970-01-01T00:00"        ],
+    [ true,              "1970-01-01T00:00:00.001" ],
+    [ false,             "1970-01-01T00:00"        ],
+    [ null,              "1970-01-01T00:00"        ],
+    // Those are converted to NaN, the corresponding week string is the empty string
+    [ "invaliddatetime-local", "" ],
+    [ NaN,                     "" ],
+    [ undefined,               "" ],
+    // Infinity will keep the current value and throw (so we need to set a current value).
+    [ Date.UTC(2016, 11, 27, 15, 10, 0), "2016-12-27T15:10"       ],
+    [ Infinity,                          "2016-12-27T15:10", true ],
+    [ -Infinity,                         "2016-12-27T15:10", true ],
+  ];
+
+  var element = document.createElement('input');
+  element.type = "datetime-local";
+  for (let data of testData) {
+    var caught = false;
+
+    try {
+      element.valueAsNumber = data[0];
+      is(element.value, data[1], "valueAsNumber should set the value to " +
+                                 data[1]);
     } catch(e) {
       caught = true;
     }
@@ -738,6 +849,10 @@ checkMonthSet();
 checkWeekGet();
 checkWeekSet();
 
+// <input type='datetime-local'> test
+checkDatetimeLocalGet();
+checkDatetimeLocalSet();
+
 </script>
 </pre>
 </body>
diff --git a/js/public/Date.h b/js/public/Date.h
index cba0ea875..cab36a3de 100644
--- a/js/public/Date.h
+++ b/js/public/Date.h
@@ -134,6 +134,14 @@ NewDateObject(JSContext* cx, ClippedTime time);
 JS_PUBLIC_API(double)
 MakeDate(double year, unsigned month, unsigned day);
 
+// Year is a year, month is 0-11, day is 1-based, and time is in milliseconds.
+// The return value is a number of milliseconds since the epoch.
+//
+// Consistent with the MakeDate algorithm defined in ECMAScript, this value is
+// *not* clipped!  Use JS::TimeClip if you need a clipped date.
+JS_PUBLIC_API(double)
+MakeDate(double year, unsigned month, unsigned day, double time);
+
 // Takes an integer number of milliseconds since the epoch and returns the
 // year.  Can return NaN, and will do so if NaN is passed in.
 JS_PUBLIC_API(double)
diff --git a/js/src/jsdate.cpp b/js/src/jsdate.cpp
index ccaeda2a3..00a8abf84 100755
--- a/js/src/jsdate.cpp
+++ b/js/src/jsdate.cpp
@@ -354,10 +354,22 @@ MakeDate(double day, double time)
 JS_PUBLIC_API(double)
 JS::MakeDate(double year, unsigned month, unsigned day)
 {
+    MOZ_ASSERT(month <= 11);
+    MOZ_ASSERT(day >= 1 && day <= 31);
+
     return ::MakeDate(MakeDay(year, month, day), 0);
 }
 
 JS_PUBLIC_API(double)
+JS::MakeDate(double year, unsigned month, unsigned day, double time)
+{
+    MOZ_ASSERT(month <= 11);
+    MOZ_ASSERT(day >= 1 && day <= 31);
+
+    return ::MakeDate(MakeDay(year, month, day), time);
+}
+
+JS_PUBLIC_API(double)
 JS::YearFromTime(double time)
 {
     return ::YearFromTime(time);