[SCM] WebKit Debian packaging branch, debian/experimental, updated. upstream/1.3.3-10851-g50815da

commit-queue at webkit.org commit-queue at webkit.org
Wed Dec 22 17:46:44 UTC 2010


The following commit has been merged in the debian/experimental branch:
commit 001c3d223604ae8254163e08965284a769c6ece2
Author: commit-queue at webkit.org <commit-queue at webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date:   Tue Nov 30 06:11:08 2010 +0000

    2010-11-29  Dai Mikurube  <dmikurube at google.com>
    
            Reviewed by Kent Tamura.
    
            when empty, clicking "down" on outer-spin-button returns "max value"
            https://bugs.webkit.org/show_bug.cgi?id=45491
    
            It is required to calculate UTC/DST offsets to retrieve the current local milliseconds for
            date/time type inputs. WTF::currentTimeMS() returns a UTC time, and WTF::getLocalTime()
            returns a struct tm, not milliseconds.
    
            Calculating milliseconds from a struct tm is not simple since timegm() cannot be used in all
            environments. This calculation is already done in calculateUTCOffset(), and complicated.
            Duplicating this complicated calculation is unreasonable because of maintainability.
            To achieve this without duplication, we must call calculate{UTC|DST}Offset in some way.
    
            * JavaScriptCore.exp:
            * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def:
            * wtf/DateMath.cpp: Changed calculateUTCOffset() and calculateDSTOffset() to external functions.
            (WTF::calculateUTCOffset):
            (WTF::calculateDSTOffset):
            * wtf/DateMath.h:
    2010-11-29  Dai Mikurube  <dmikurube at google.com>
    
            Reviewed by Kent Tamura.
    
            when empty, clicking "down" on outer-spin-button returns "max value"
            https://bugs.webkit.org/show_bug.cgi?id=45491
    
            * fast/forms/input-stepup-stepdown-from-renderer-expected.txt: Added.
            * fast/forms/input-stepup-stepdown-from-renderer.html: Added.
            * fast/forms/script-tests/input-stepup-stepdown-from-renderer.js: Added.
            ():
            (setInputAttributes):
            (stepUp):
            (stepDown):
            (stepUpExplicitBounds):
            (stepDownExplicitBounds):
    2010-11-29  Dai Mikurube  <dmikurube at google.com>
    
            Reviewed by Kent Tamura.
    
            when empty, clicking "down" on outer-spin-button returns "max value"
            https://bugs.webkit.org/show_bug.cgi?id=45491
    
            Modified stepping-up/down from renderer
            - to clamp steps,
            - to handle empty values (described below), and
            - to apply them for range type inputs.
    
            Stepping-up/down for empty values are handled "the empty as 0."
            For example :
            * If 0 is in-range, and matches to step value
              "down" -> -step
              "up" -> +step
              If -step or +step is out of range, new value should be 0.
    
            * If 0 is smaller than the minimum value
              "down" -> the minimum value
              "up" -> the minimum value
    
            * If 0 is larger than the maximum value
              "down" -> the maximum value
              "up" -> the maximum value
    
            * If 0 is in-range, but not matched to step value
              "down" -> smaler matched value nearest to 0.
                e.g. <input type=number min=-100 step=3> -> -1
              "up" -> larger matched value nearest to 0.
                e.g. <input type=number min=-100 step=3> -> 2
    
            As for date/datetime-local/month/time/week types, the empty is assumed as "current local date/time".
            As for datetime type, the empty is assumed as "current date/time in UTC".
    
            As for range input types, changed stepping from renderer to use stepUpFromRenderer().
            It was calculated with stepUp() from RangeInputType::handleKeydownEvent().
    
            Test: fast/forms/input-stepup-stepdown-from-renderer.html
    
            * html/BaseDateAndTimeInputType.cpp:
            (WebCore::BaseDateAndTimeInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current local time
            * html/BaseDateAndTimeInputType.h:
            * html/DateTimeInputType.cpp:
            (WebCore::DateTimeInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current UTC time
            * html/DateTimeInputType.h:
            * html/HTMLInputElement.cpp:
            (WebCore::HTMLInputElement::stepUpFromRenderer): Modified it to clamp steps, support empty values and support range type inputs
            * html/HTMLInputElement.h:
            (WebCore::HTMLInputElement::isRangeControl):
            * html/InputType.cpp:
            (WebCore::InputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns 0
            * html/InputType.h:
            * html/MonthInputType.cpp:
            (WebCore::MonthInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current local month
            * html/MonthInputType.h:
            * html/RangeInputType.cpp:
            (WebCore::RangeInputType::handleKeydownEvent): Added comments and modified it to use stepUpFromRenderer()
            * html/TimeInputType.cpp:
            (WebCore::TimeInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current local time
            * html/TimeInputType.h:
            * manual-tests/input-type-datetime-default-value.html: Added manual tests for default values of date/time inputs since they are "the current local/UTC time", which cannot be tested automatically.
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@72884 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/JavaScriptCore/ChangeLog b/JavaScriptCore/ChangeLog
index 4c7926d..4d1bc27 100644
--- a/JavaScriptCore/ChangeLog
+++ b/JavaScriptCore/ChangeLog
@@ -1,3 +1,26 @@
+2010-11-29  Dai Mikurube  <dmikurube at google.com>
+
+        Reviewed by Kent Tamura.
+
+        when empty, clicking "down" on outer-spin-button returns "max value"
+        https://bugs.webkit.org/show_bug.cgi?id=45491
+
+        It is required to calculate UTC/DST offsets to retrieve the current local milliseconds for
+        date/time type inputs. WTF::currentTimeMS() returns a UTC time, and WTF::getLocalTime()
+        returns a struct tm, not milliseconds.
+
+        Calculating milliseconds from a struct tm is not simple since timegm() cannot be used in all
+        environments. This calculation is already done in calculateUTCOffset(), and complicated.
+        Duplicating this complicated calculation is unreasonable because of maintainability.
+        To achieve this without duplication, we must call calculate{UTC|DST}Offset in some way.
+
+        * JavaScriptCore.exp:
+        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def:
+        * wtf/DateMath.cpp: Changed calculateUTCOffset() and calculateDSTOffset() to external functions.
+        (WTF::calculateUTCOffset):
+        (WTF::calculateDSTOffset):
+        * wtf/DateMath.h:
+
 2010-11-29  Chris Rogers  <crogers at google.com>
 
         Reviewed by Kenneth Russell.
diff --git a/JavaScriptCore/JavaScriptCore.exp b/JavaScriptCore/JavaScriptCore.exp
index ac5d0d7..cdb3ce7 100644
--- a/JavaScriptCore/JavaScriptCore.exp
+++ b/JavaScriptCore/JavaScriptCore.exp
@@ -404,6 +404,8 @@ __ZN3WTF17charactersToFloatEPKtmPb
 __ZN3WTF17equalIgnoringCaseEPKtPKcj
 __ZN3WTF17equalIgnoringCaseEPNS_10StringImplEPKc
 __ZN3WTF17equalIgnoringCaseEPNS_10StringImplES1_
+__ZN3WTF18calculateDSTOffsetEdd
+__ZN3WTF18calculateUTCOffsetEv
 __ZN3WTF18charactersToDoubleEPKtmPb
 __ZN3WTF18dateToDaysFrom1970Eiii
 __ZN3WTF18monthFromDayInYearEib
diff --git a/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def b/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def
index 449c0bb..42ac7f1 100644
--- a/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def
+++ b/JavaScriptCore/JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def
@@ -59,6 +59,8 @@ EXPORTS
     ?broadcast at ThreadCondition@WTF@@QAEXXZ
     ?bufferLengthForStringDecimal at DecimalNumber@WTF@@QBEIXZ
     ?calculatedFunctionName at DebuggerCallFrame@JSC@@QBE?AVUString at 2@XZ
+    ?calculateUTCOffset at WTF@@YAHXZ
+    ?calculateDSTOffset at WTF@@YANNN at Z
     ?call at JSC@@YA?AVJSValue at 1@PAVExecState at 1@V21 at W4CallType@1 at ABTCallData@1 at 1ABVArgList@1@@Z
     ?callOnMainThread at WTF@@YAXP6AXPAX at Z0@Z
     ?callOnMainThreadAndWait at WTF@@YAXP6AXPAX at Z0@Z
diff --git a/JavaScriptCore/wtf/DateMath.cpp b/JavaScriptCore/wtf/DateMath.cpp
index f3627e6..675f093 100644
--- a/JavaScriptCore/wtf/DateMath.cpp
+++ b/JavaScriptCore/wtf/DateMath.cpp
@@ -379,7 +379,7 @@ int equivalentYearForDST(int year)
     return year;
 }
 
-static int32_t calculateUTCOffset()
+int32_t calculateUTCOffset()
 {
 #if PLATFORM(BREWMP)
     time_t localTime = static_cast<time_t>(currentTime());
@@ -449,7 +449,7 @@ static double calculateDSTOffsetSimple(double localTimeSeconds, double utcOffset
 }
 
 // Get the DST offset, given a time in UTC
-static double calculateDSTOffset(double ms, double utcOffset)
+double calculateDSTOffset(double ms, double utcOffset)
 {
     // On Mac OS X, the call to localtime (see calculateDSTOffsetSimple) will return historically accurate
     // DST information (e.g. New Zealand did not have DST from 1946 to 1974) however the JavaScript
diff --git a/JavaScriptCore/wtf/DateMath.h b/JavaScriptCore/wtf/DateMath.h
index be51947..cb84708 100644
--- a/JavaScriptCore/wtf/DateMath.h
+++ b/JavaScriptCore/wtf/DateMath.h
@@ -84,6 +84,10 @@ int dayInYear(double ms, int year);
 int monthFromDayInYear(int dayInYear, bool leapYear);
 int dayInMonthFromDayInYear(int dayInYear, bool leapYear);
 
+// Returns offset milliseconds for UTC and DST.
+int32_t calculateUTCOffset();
+double calculateDSTOffset(double ms, double utcOffset);
+
 } // namespace WTF
 
 using WTF::dateToDaysFrom1970;
@@ -92,10 +96,13 @@ using WTF::dayInYear;
 using WTF::minutesPerHour;
 using WTF::monthFromDayInYear;
 using WTF::msPerDay;
+using WTF::msPerMinute;
 using WTF::msPerSecond;
 using WTF::msToYear;
 using WTF::secondsPerMinute;
 using WTF::parseDateFromNullTerminatedCharacters;
+using WTF::calculateUTCOffset;
+using WTF::calculateDSTOffset;
 
 #if USE(JSC)
 namespace JSC {
diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index 4329a7e..0737cca 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,20 @@
+2010-11-29  Dai Mikurube  <dmikurube at google.com>
+
+        Reviewed by Kent Tamura.
+
+        when empty, clicking "down" on outer-spin-button returns "max value"
+        https://bugs.webkit.org/show_bug.cgi?id=45491
+
+        * fast/forms/input-stepup-stepdown-from-renderer-expected.txt: Added.
+        * fast/forms/input-stepup-stepdown-from-renderer.html: Added.
+        * fast/forms/script-tests/input-stepup-stepdown-from-renderer.js: Added.
+        ():
+        (setInputAttributes):
+        (stepUp):
+        (stepDown):
+        (stepUpExplicitBounds):
+        (stepDownExplicitBounds):
+
 2010-11-29  Ojan Vafai  <ojan at chromium.org>
 
         Update listing for spatial nav tests after they were moved 
diff --git a/LayoutTests/fast/forms/input-stepup-stepdown-from-renderer-expected.txt b/LayoutTests/fast/forms/input-stepup-stepdown-from-renderer-expected.txt
new file mode 100644
index 0000000..be5194f
--- /dev/null
+++ b/LayoutTests/fast/forms/input-stepup-stepdown-from-renderer-expected.txt
@@ -0,0 +1,257 @@
+Check stepping-up and -down for  from renderer. No cases of empty initial values for type=date, datetime, datetime-local, month, time, week.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+Date type
+Function arguments are (value, step, {min or max}, [stepCount]).
+Normal cases
+PASS stepUp("2010-02-10", null, null) is "2010-02-11"
+PASS stepDown("2010-02-10", null, null) is "2010-02-09"
+PASS stepUp("2010-02-10", null, null, 10) is "2010-02-20"
+PASS stepDown("2010-02-10", null, null, 11) is "2010-01-30"
+PASS stepUp("1970-01-01", "4", null, 2) is "1970-01-09"
+PASS stepDown("1970-01-01", "4", null, 3) is "1969-12-20"
+Step=any
+PASS stepUp("2010-02-10", "any", null) is "2010-02-10"
+PASS stepDown("2010-02-10", "any", null) is "2010-02-10"
+Overflow/underflow
+PASS stepUp("2010-02-10", "3.40282346e+38", null) is "275760-09-13"
+PASS stepDown("2010-02-10", "3.40282346e+38", null) is "1970-01-01"
+PASS stepUp("2010-02-10", "1", "2010-02-10") is "2010-02-10"
+PASS stepDown("2010-02-10", "1", "2010-02-10") is "2010-02-10"
+stepDown()/stepUp() for stepMismatch values
+PASS stepDown("2010-02-10", "3", "2010-02-06") is "2010-02-09"
+PASS stepUp("1970-01-02", "2", "") is "1970-01-03"
+
+Datetime type
+Function arguments are (value, step, {min or max}, [stepCount]).
+Normal cases
+PASS stepUp("2010-02-10T20:13Z", null, null) is "2010-02-10T20:14Z"
+PASS stepDown("2010-02-10T20:13Z", null, null) is "2010-02-10T20:12Z"
+PASS stepUp("2010-02-10T20:13Z", null, null, 10) is "2010-02-10T20:23Z"
+PASS stepDown("2010-02-10T20:13Z", null, null, 11) is "2010-02-10T20:02Z"
+PASS stepUp("1970-01-01T20:13Z", "4", null, 2) is "1970-01-01T20:13:08Z"
+PASS stepDown("1970-01-01T20:13Z", "4", null, 3) is "1970-01-01T20:12:48Z"
+Step=any
+PASS stepUp("2010-02-10T20:13Z", "any", null) is "2010-02-10T20:13Z"
+PASS stepDown("2010-02-10T20:13Z", "any", null) is "2010-02-10T20:13Z"
+Overflow/underflow
+PASS stepUp("2010-02-10T20:13Z", "3.40282346e+38", null) is "275760-09-13T00:00:00.000Z"
+PASS stepDown("2010-02-10T20:13Z", "3.40282346e+38", null) is "1970-01-01T00:00:00.000Z"
+PASS stepUp("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z") is "2010-02-10T20:13Z"
+PASS stepDown("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z") is "2010-02-10T20:13Z"
+stepDown()/stepUp() for stepMismatch values
+PASS stepDown("2010-02-10T20:13Z", "3", "2010-02-10T20:12:56Z") is "2010-02-10T20:12:59Z"
+PASS stepUp("1970-01-01T00:13Z", "7", "") is "1970-01-01T00:13:04Z"
+
+Datetime-local type
+Function arguments are (value, step, {min or max}, [stepCount]).
+Normal cases
+PASS stepUp("2010-02-10T20:13", null, null) is "2010-02-10T20:14"
+PASS stepDown("2010-02-10T20:13", null, null) is "2010-02-10T20:12"
+PASS stepUp("2010-02-10T20:13", null, null, 10) is "2010-02-10T20:23"
+PASS stepDown("2010-02-10T20:13", null, null, 11) is "2010-02-10T20:02"
+PASS stepUp("1970-01-01T20:13", "4", null, 2) is "1970-01-01T20:13:08"
+PASS stepDown("1970-01-01T20:13", "4", null, 3) is "1970-01-01T20:12:48"
+Step=any
+PASS stepUp("2010-02-10T20:13", "any", null) is "2010-02-10T20:13"
+PASS stepDown("2010-02-10T20:13", "any", null) is "2010-02-10T20:13"
+Overflow/underflow
+PASS stepUp("2010-02-10T20:13", "3.40282346e+38", null) is "275760-09-13T00:00:00.000"
+PASS stepDown("2010-02-10T20:13", "3.40282346e+38", null) is "1970-01-01T00:00:00.000"
+PASS stepUp("2010-02-10T20:13", "1", "2010-02-10T20:13") is "2010-02-10T20:13"
+PASS stepDown("2010-02-10T20:13", "1", "2010-02-10T20:13") is "2010-02-10T20:13"
+stepDown()/stepUp() for stepMismatch values
+PASS stepDown("2010-02-10T20:13", "3", "2010-02-10T20:12:56") is "2010-02-10T20:12:59"
+PASS stepUp("1970-01-01T00:13", "7", "") is "1970-01-01T00:13:04"
+
+Month type
+Function arguments are (value, step, {min or max}, [stepCount]).
+Normal cases
+PASS stepUp("2010-02", null, null) is "2010-03"
+PASS stepDown("2010-02", null, null) is "2010-01"
+PASS stepUp("2010-02", null, null, 10) is "2010-12"
+PASS stepDown("2010-02", null, null, 11) is "2009-03"
+PASS stepUp("1970-01", "4", null, 2) is "1970-09"
+PASS stepDown("1970-01", "4", null, 3) is "1969-01"
+Step=any
+PASS stepUp("2010-02", "any", null) is "2010-02"
+PASS stepDown("2010-02", "any", null) is "2010-02"
+Overflow/underflow
+PASS stepUp("2010-02", "3.40282346e+38", null) is "275760-09"
+PASS stepDown("2010-02", "3.40282346e+38", null) is "1970-01"
+PASS stepUp("2010-02", "1", "2010-02") is "2010-02"
+PASS stepDown("2010-02", "1", "2010-02") is "2010-02"
+stepDown()/stepUp() for stepMismatch values
+PASS stepDown("2010-02", "3", "2009-10") is "2010-01"
+PASS stepUp("1970-02", "4", "") is "1970-05"
+
+Number type
+Function arguments are (value, step, {min or max}, [stepCount]).
+Invalid value
+PASS stepUp("", null, null) is "1"
+PASS stepDown("", null, null) is "-1"
+PASS stepUp("", "any", null) is "0"
+PASS stepDown("", "any", null) is "0"
+PASS stepUp("", "foo", null) is "1"
+PASS stepDown("", "foo", null) is "-1"
+PASS stepUp("foo", null, null) is "1"
+PASS stepDown("foo", null, null) is "-1"
+PASS stepUp("foo", "any", null) is "0"
+PASS stepDown("foo", "any", null) is "0"
+PASS stepUp("foo", "foo", null) is "1"
+PASS stepDown("foo", "foo", null) is "-1"
+Normal cases
+PASS stepUp("0", null, null) is "1"
+PASS stepUp("1", null, null, 2) is "3"
+PASS stepUp("3", null, null, -1) is "2"
+PASS stepDown("2", null, null) is "1"
+PASS stepDown("1", null, null, 2) is "-1"
+PASS stepDown("-1", null, null, -1) is "0"
+Invalid step value
+PASS stepUp("0", "foo", null) is "1"
+PASS stepUp("1", "0", null) is "2"
+PASS stepUp("2", "-1", null) is "3"
+Step=any
+PASS stepUp("0", "any", null) is "0"
+PASS stepDown("0", "any", null) is "0"
+Overflow/underflow
+PASS stepDown("1", "1", "0") is "0"
+PASS stepDown("0", "1", "0") is "0"
+PASS stepDown("1", "1", "0", 2) is "0"
+PASS stepDown("1", "3.40282346e+38", "", 2) is "-3.40282346e+38"
+PASS stepUp("-1", "1", "0") is "0"
+PASS stepUp("0", "1", "0") is "0"
+PASS stepUp("-1", "1", "0", 2) is "0"
+PASS stepUp("1", "3.40282346e+38", "", 2) is "3.40282346e+38"
+stepDown()/stepUp() for stepMismatch values
+PASS stepUp("1", "2", "") is "2"
+PASS input.min = "0"; stepUp("9", "10", "") is "10"
+PASS stepDown("19", "10", "0") is "10"
+PASS stepUp("89", "10", "99") is "90"
+Huge value and small step
+PASS input.min = ""; stepUp("1e+38", "1", "", 999) is "1e+38"
+PASS input.max = ""; stepDown("1e+38", "1", "", 999) is "1e+38"
+Fractional numbers
+PASS input.min = ""; stepUp("0", "0.33333333333333333", "", 3) is "1"
+PASS stepUp("1", "0.1", "", 10) is "2"
+PASS input.min = "0"; stepUp("0", "0.003921568627450980", "1", 255) is "1"
+Rounding
+PASS stepUp("5.005", "0.005", "", 2) is "5.015"
+PASS stepUp("5.005", "0.005", "", 11) is "5.06"
+PASS stepUp("5.005", "0.005", "", 12) is "5.065"
+PASS stepUpExplicitBounds("4", "9", "0.005", "5.005", 2) is "5.015"
+PASS stepUpExplicitBounds("4", "9", "0.005", "5.005", 11) is "5.06"
+PASS stepUpExplicitBounds("4", "9", "0.005", "5.005", 12) is "5.065"
+
+Range type
+Function arguments are (min, max, step, value, [stepCount]).
+Using the default values
+PASS stepUpExplicitBounds(null, null, null, "") is "51"
+PASS stepDownExplicitBounds(null, null, null, "") is "49"
+PASS stepUpExplicitBounds(null, null, "any", "") is "51"
+PASS stepDownExplicitBounds(null, null, "any", "") is "49"
+PASS stepUpExplicitBounds(null, null, "foo", "") is "51"
+PASS stepDownExplicitBounds(null, null, "foo", "") is "49"
+PASS stepUpExplicitBounds(null, null, null, "foo") is "51"
+PASS stepDownExplicitBounds(null, null, null, "foo") is "49"
+PASS stepUpExplicitBounds(null, null, "any", "foo") is "51"
+PASS stepDownExplicitBounds(null, null, "any", "foo") is "49"
+PASS stepUpExplicitBounds(null, null, "foo", "foo") is "51"
+PASS stepDownExplicitBounds(null, null, "foo", "foo") is "49"
+Normal cases
+PASS stepUpExplicitBounds(null, null, null, "0") is "1"
+PASS stepUpExplicitBounds(null, null, null, "1", 2) is "3"
+PASS stepUpExplicitBounds(null, null, null, "3", -1) is "2"
+PASS stepDownExplicitBounds("-100", null, null, "2") is "1"
+PASS stepDownExplicitBounds("-100", null, null, "1", 2) is "-1"
+PASS stepDownExplicitBounds("-100", null, null, "-1", -1) is "0"
+Invalid step value
+PASS stepUpExplicitBounds(null, null, "foo", "0") is "1"
+PASS stepUpExplicitBounds(null, null, "0", "1") is "2"
+PASS stepUpExplicitBounds(null, null, "-1", "2") is "3"
+PASS stepDownExplicitBounds(null, null, "foo", "1") is "0"
+PASS stepDownExplicitBounds(null, null, "0", "2") is "1"
+PASS stepDownExplicitBounds(null, null, "-1", "3") is "2"
+Step=any
+PASS stepUpExplicitBounds(null, null, "any", "1") is "2"
+PASS stepDownExplicitBounds(null, null, "any", "1") is "0"
+Overflow/underflow
+PASS stepUpExplicitBounds(null, "100", "1", "99") is "100"
+PASS stepUpExplicitBounds(null, "100", "1", "100") is "100"
+PASS stepUpExplicitBounds(null, "100", "1", "99", 2) is "100"
+PASS stepDownExplicitBounds("0", null, "1", "1") is "0"
+PASS stepDownExplicitBounds("0", null, "1", "0") is "0"
+PASS stepDownExplicitBounds("0", null, "1", "1", 2) is "0"
+PASS stepDownExplicitBounds(null, null, "3.40282346e+38", "1", 2) is "0"
+PASS stepUpExplicitBounds(-100, 0, 1, -1) is "0"
+PASS stepUpExplicitBounds(null, 0, 1, 0) is "0"
+PASS stepUpExplicitBounds(-100, 0, 1, -1, 2) is "0"
+PASS stepUpExplicitBounds(null, null, "3.40282346e+38", "1", 2) is "0"
+stepDown()/stepUp() for stepMismatch values
+PASS stepUpExplicitBounds(null, null, 2, 1) is "4"
+PASS stepUpExplicitBounds(0, null, 10, 9, 9) is "100"
+PASS stepDownExplicitBounds(0, null, 10, 19) is "10"
+value + step is <= max, but rounded result would be > max.
+PASS stepUpExplicitBounds(null, 99, 10, 89) is "90"
+Huge value and small step
+PASS stepUpExplicitBounds(0, 1e38, 1, 1e38, 999) is "1e+38"
+PASS stepDownExplicitBounds(0, 1e38, 1, 1e38, 999) is "1e+38"
+Fractional numbers
+PASS stepUpExplicitBounds(null, null, 0.33333333333333333, 0, 3) is "1"
+PASS stepUpExplicitBounds(null, null, 0.1, 1) is "1.1"
+PASS stepUpExplicitBounds(null, null, 0.1, 1, 8) is "1.8"
+PASS stepUpExplicitBounds(null, null, 0.1, 1, 10) is "2"
+PASS stepUpExplicitBounds(0, 1, 0.003921568627450980, 0, 255) is "1"
+PASS stepDownExplicitBounds(null, null, 0.1, 1, 8) is "0.2"
+PASS stepDownExplicitBounds(null, null, 0.1, 1) is "0.9"
+
+Time type
+Function arguments are (value, step, {min or max}, [stepCount]).
+Normal cases
+PASS stepUp("20:13", null, null) is "20:14"
+PASS stepDown("20:13", null, null) is "20:12"
+PASS stepUp("20:13", null, null, 10) is "20:23"
+PASS stepDown("20:13", null, null, 11) is "20:02"
+PASS stepUp("20:13", "4", null, 2) is "20:13:08"
+PASS stepDown("20:13", "4", null, 3) is "20:12:48"
+Step=any
+PASS stepUp("20:13", "any", null) is "20:13"
+PASS stepDown("20:13", "any", null) is "20:13"
+Overflow/underflow
+PASS stepUp("20:13", "3.40282346e+38", null) is "23:59:59.999"
+PASS stepDown("20:13", "3.40282346e+38", null) is "00:00:00.000"
+PASS stepUp("20:13", "1", "20:13") is "20:13"
+PASS stepDown("20:13", "1", "20:13") is "20:13"
+PASS stepUp("23:59", null, null) is "23:59"
+PASS stepDown("00:00", null, null) is "00:00"
+stepDown()/stepUp() for stepMismatch values
+PASS stepDown("20:13", "3", "20:12:56") is "20:12:59"
+PASS stepUp("00:13", "7", "") is "00:13:04"
+
+Week type
+Function arguments are (value, step, {min or max}, [stepCount]).
+Normal cases
+PASS stepUp("2010-W02", null, null) is "2010-W03"
+PASS stepDown("2010-W02", null, null) is "2010-W01"
+PASS stepUp("2010-W02", null, null, 10) is "2010-W12"
+PASS stepDown("2010-W02", null, null, 11) is "2009-W44"
+PASS stepUp("1970-W01", "4", null, 2) is "1970-W09"
+PASS stepDown("1970-W01", "4", null, 3) is "1969-W41"
+Step=any
+PASS stepUp("2010-W02", "any", null) is "2010-W02"
+PASS stepDown("2010-W02", "any", null) is "2010-W02"
+Overflow/underflow
+PASS stepUp("2010-W02", "3.40282346e+38", null) is "275760-W37"
+PASS stepDown("2010-W02", "3.40282346e+38", null) is "1970-W01"
+PASS stepUp("2010-W02", "1", "2010-W02") is "2010-W02"
+PASS stepDown("2010-W02", "1", "2010-W02") is "2010-W02"
+stepDown()/stepUp() for stepMismatch values
+PASS stepDown("2010-W02", "2", "2009-W52") is "2010-W01"
+PASS stepUp("1970-W02", "4", "") is "1970-W05"
+
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
diff --git a/LayoutTests/fast/forms/input-stepup-stepdown-from-renderer.html b/LayoutTests/fast/forms/input-stepup-stepdown-from-renderer.html
new file mode 100644
index 0000000..a4ffffd
--- /dev/null
+++ b/LayoutTests/fast/forms/input-stepup-stepdown-from-renderer.html
@@ -0,0 +1,13 @@
+<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
+<html>
+<head>
+<link rel="stylesheet" href="../../fast/js/resources/js-test-style.css">
+<script src="../../fast/js/resources/js-test-pre.js"></script>
+</head>
+<body>
+<p id="description"></p>
+<div id="console"></div>
+<script src="script-tests/input-stepup-stepdown-from-renderer.js"></script>
+<script src="../../fast/js/resources/js-test-post.js"></script>
+</body>
+</html>
diff --git a/LayoutTests/fast/forms/script-tests/input-stepup-stepdown-from-renderer.js b/LayoutTests/fast/forms/script-tests/input-stepup-stepdown-from-renderer.js
new file mode 100644
index 0000000..556bf2f
--- /dev/null
+++ b/LayoutTests/fast/forms/script-tests/input-stepup-stepdown-from-renderer.js
@@ -0,0 +1,344 @@
+description('Check stepping-up and -down for <input> from renderer. No cases of empty initial values for type=date, datetime, datetime-local, month, time, week.');
+
+var input = document.createElement('input');
+var invalidStateErr = '"Error: INVALID_STATE_ERR: DOM Exception 11"';
+
+function sendKey(keyName) {
+    var event = document.createEvent('KeyboardEvent');
+    event.initKeyboardEvent('keydown', true, true, document.defaultView, keyName);
+    input.dispatchEvent(event);
+}
+
+function setInputAttributes(min, max, step, value) {
+    input.min = min;
+    input.max = max;
+    input.step = step;
+    input.value = value;
+}
+
+function stepUp(value, step, max, optionalStepCount) {
+    setInputAttributes(null, max, step, value);
+    if (typeof optionalStepCount != "undefined")
+        if (optionalStepCount < 0)
+            for (var i = 0; i < -optionalStepCount; i++)
+                sendKey('Down');
+        else
+            for (var i = 0; i < optionalStepCount; i++)
+                sendKey('Up');
+    else
+        sendKey('Up');
+    return input.value;
+}
+
+function stepDown(value, step, min, optionalStepCount) {
+    setInputAttributes(min, null, step, value);
+    if (typeof optionalStepCount != "undefined")
+        if (optionalStepCount < 0)
+            for (var i = 0; i < -optionalStepCount; i++)
+                sendKey('Up');
+        else
+            for (var i = 0; i < optionalStepCount; i++)
+                sendKey('Down');
+    else
+        sendKey('Down');
+    return input.value;
+}
+
+// Range value gets automatically shifted based on bounds,
+// So always set the min and max first to get expected behavior
+
+function stepUpExplicitBounds(min, max, step, value, stepCount) {
+    setInputAttributes(min, max, step, value);
+    if (typeof stepCount !== 'undefined')
+        if (stepCount < 0) {
+            for (var i = 0; i < -stepCount; i++)
+                sendKey('Down');
+        } else {
+            for (var i = 0; i < stepCount; i++)
+                sendKey('Up');
+        }
+    else
+        sendKey('Up');
+    return input.value;
+}
+
+function stepDownExplicitBounds(min, max, step, value, stepCount) {
+    setInputAttributes(min, max, step, value);
+    if (typeof stepCount !== 'undefined')
+        if (stepCount < 0) {
+            for (var i = 0; i < -stepCount; i++)
+                sendKey('Up');
+        } else {
+            for (var i = 0; i < stepCount; i++)
+                sendKey('Down');
+        }
+    else
+        sendKey('Down');
+    return input.value;
+}
+
+debug('Date type');
+input.type = 'date';
+debug('Function arguments are (value, step, {min or max}, [stepCount]).');
+debug('Normal cases');
+shouldBe('stepUp("2010-02-10", null, null)', '"2010-02-11"');
+shouldBe('stepDown("2010-02-10", null, null)', '"2010-02-09"');
+shouldBe('stepUp("2010-02-10", null, null, 10)', '"2010-02-20"');
+shouldBe('stepDown("2010-02-10", null, null, 11)', '"2010-01-30"');
+shouldBe('stepUp("1970-01-01", "4", null, 2)', '"1970-01-09"');
+shouldBe('stepDown("1970-01-01", "4", null, 3)', '"1969-12-20"');
+debug('Step=any');
+shouldBe('stepUp("2010-02-10", "any", null)', '"2010-02-10"');
+shouldBe('stepDown("2010-02-10", "any", null)', '"2010-02-10"');
+debug('Overflow/underflow');
+shouldBe('stepUp("2010-02-10", "3.40282346e+38", null)','"275760-09-13"');
+shouldBe('stepDown("2010-02-10", "3.40282346e+38", null)', '"1970-01-01"');
+shouldBe('stepUp("2010-02-10", "1", "2010-02-10")', '"2010-02-10"');
+shouldBe('stepDown("2010-02-10", "1", "2010-02-10")', '"2010-02-10"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepDown("2010-02-10", "3", "2010-02-06")', '"2010-02-09"');
+shouldBe('stepUp("1970-01-02", "2", "")', '"1970-01-03"');
+
+debug('');
+debug('Datetime type');
+input.type = 'datetime';
+debug('Function arguments are (value, step, {min or max}, [stepCount]).');
+debug('Normal cases');
+shouldBe('stepUp("2010-02-10T20:13Z", null, null)', '"2010-02-10T20:14Z"');
+shouldBe('stepDown("2010-02-10T20:13Z", null, null)', '"2010-02-10T20:12Z"');
+shouldBe('stepUp("2010-02-10T20:13Z", null, null, 10)', '"2010-02-10T20:23Z"');
+shouldBe('stepDown("2010-02-10T20:13Z", null, null, 11)', '"2010-02-10T20:02Z"');
+shouldBe('stepUp("1970-01-01T20:13Z", "4", null, 2)', '"1970-01-01T20:13:08Z"');
+shouldBe('stepDown("1970-01-01T20:13Z", "4", null, 3)', '"1970-01-01T20:12:48Z"');
+debug('Step=any');
+shouldBe('stepUp("2010-02-10T20:13Z", "any", null)', '"2010-02-10T20:13Z"');
+shouldBe('stepDown("2010-02-10T20:13Z", "any", null)', '"2010-02-10T20:13Z"');
+debug('Overflow/underflow');
+shouldBe('stepUp("2010-02-10T20:13Z", "3.40282346e+38", null)', '"275760-09-13T00:00:00.000Z"');
+shouldBe('stepDown("2010-02-10T20:13Z", "3.40282346e+38", null)', '"1970-01-01T00:00:00.000Z"');
+shouldBe('stepUp("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z")', '"2010-02-10T20:13Z"');
+shouldBe('stepDown("2010-02-10T20:13Z", "1", "2010-02-10T20:13Z")', '"2010-02-10T20:13Z"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepDown("2010-02-10T20:13Z", "3", "2010-02-10T20:12:56Z")', '"2010-02-10T20:12:59Z"');
+shouldBe('stepUp("1970-01-01T00:13Z", "7", "")', '"1970-01-01T00:13:04Z"');
+
+debug('');
+debug('Datetime-local type');
+input.type = 'datetime-local';
+debug('Function arguments are (value, step, {min or max}, [stepCount]).');
+debug('Normal cases');
+shouldBe('stepUp("2010-02-10T20:13", null, null)', '"2010-02-10T20:14"');
+shouldBe('stepDown("2010-02-10T20:13", null, null)', '"2010-02-10T20:12"');
+shouldBe('stepUp("2010-02-10T20:13", null, null, 10)', '"2010-02-10T20:23"');
+shouldBe('stepDown("2010-02-10T20:13", null, null, 11)', '"2010-02-10T20:02"');
+shouldBe('stepUp("1970-01-01T20:13", "4", null, 2)', '"1970-01-01T20:13:08"');
+shouldBe('stepDown("1970-01-01T20:13", "4", null, 3)', '"1970-01-01T20:12:48"');
+debug('Step=any');
+shouldBe('stepUp("2010-02-10T20:13", "any", null)', '"2010-02-10T20:13"');
+shouldBe('stepDown("2010-02-10T20:13", "any", null)', '"2010-02-10T20:13"');
+debug('Overflow/underflow');
+shouldBe('stepUp("2010-02-10T20:13", "3.40282346e+38", null)', '"275760-09-13T00:00:00.000"');
+shouldBe('stepDown("2010-02-10T20:13", "3.40282346e+38", null)', '"1970-01-01T00:00:00.000"');
+shouldBe('stepUp("2010-02-10T20:13", "1", "2010-02-10T20:13")', '"2010-02-10T20:13"');
+shouldBe('stepDown("2010-02-10T20:13", "1", "2010-02-10T20:13")', '"2010-02-10T20:13"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepDown("2010-02-10T20:13", "3", "2010-02-10T20:12:56")', '"2010-02-10T20:12:59"');
+shouldBe('stepUp("1970-01-01T00:13", "7", "")', '"1970-01-01T00:13:04"');
+
+debug('');
+debug('Month type');
+input.type = 'month';
+debug('Function arguments are (value, step, {min or max}, [stepCount]).');
+debug('Normal cases');
+shouldBe('stepUp("2010-02", null, null)', '"2010-03"');
+shouldBe('stepDown("2010-02", null, null)', '"2010-01"');
+shouldBe('stepUp("2010-02", null, null, 10)', '"2010-12"');
+shouldBe('stepDown("2010-02", null, null, 11)', '"2009-03"');
+shouldBe('stepUp("1970-01", "4", null, 2)', '"1970-09"');
+shouldBe('stepDown("1970-01", "4", null, 3)', '"1969-01"');
+debug('Step=any');
+shouldBe('stepUp("2010-02", "any", null)', '"2010-02"');
+shouldBe('stepDown("2010-02", "any", null)', '"2010-02"');
+debug('Overflow/underflow');
+shouldBe('stepUp("2010-02", "3.40282346e+38", null)', '"275760-09"');
+shouldBe('stepDown("2010-02", "3.40282346e+38", null)', '"1970-01"');
+shouldBe('stepUp("2010-02", "1", "2010-02")', '"2010-02"');
+shouldBe('stepDown("2010-02", "1", "2010-02")', '"2010-02"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepDown("2010-02", "3", "2009-10")', '"2010-01"');
+shouldBe('stepUp("1970-02", "4", "")', '"1970-05"');
+
+debug('');
+debug('Number type');
+input.type = 'number';
+debug('Function arguments are (value, step, {min or max}, [stepCount]).');
+debug('Invalid value');
+shouldBe('stepUp("", null, null)', '"1"');
+shouldBe('stepDown("", null, null)', '"-1"');
+shouldBe('stepUp("", "any", null)', '"0"');
+shouldBe('stepDown("", "any", null)', '"0"');
+shouldBe('stepUp("", "foo", null)', '"1"');
+shouldBe('stepDown("", "foo", null)', '"-1"');
+shouldBe('stepUp("foo", null, null)', '"1"');
+shouldBe('stepDown("foo", null, null)', '"-1"');
+shouldBe('stepUp("foo", "any", null)', '"0"');
+shouldBe('stepDown("foo", "any", null)', '"0"');
+shouldBe('stepUp("foo", "foo", null)', '"1"');
+shouldBe('stepDown("foo", "foo", null)', '"-1"');
+debug('Normal cases');
+shouldBe('stepUp("0", null, null)', '"1"');
+shouldBe('stepUp("1", null, null, 2)', '"3"');
+shouldBe('stepUp("3", null, null, -1)', '"2"');
+shouldBe('stepDown("2", null, null)', '"1"');
+shouldBe('stepDown("1", null, null, 2)', '"-1"');
+shouldBe('stepDown("-1", null, null, -1)', '"0"');
+debug('Invalid step value');
+shouldBe('stepUp("0", "foo", null)', '"1"');
+shouldBe('stepUp("1", "0", null)', '"2"');
+shouldBe('stepUp("2", "-1", null)', '"3"');
+debug('Step=any');
+shouldBe('stepUp("0", "any", null)', '"0"');
+shouldBe('stepDown("0", "any", null)', '"0"');
+debug('Overflow/underflow');
+shouldBe('stepDown("1", "1", "0")', '"0"');
+shouldBe('stepDown("0", "1", "0")', '"0"');
+shouldBe('stepDown("1", "1", "0", 2)', '"0"');
+shouldBe('stepDown("1", "3.40282346e+38", "", 2)', '"-3.40282346e+38"');
+shouldBe('stepUp("-1", "1", "0")', '"0"');
+shouldBe('stepUp("0", "1", "0")', '"0"');
+shouldBe('stepUp("-1", "1", "0", 2)', '"0"');
+shouldBe('stepUp("1", "3.40282346e+38", "", 2)', '"3.40282346e+38"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepUp("1", "2", "")', '"2"');
+shouldBe('input.min = "0"; stepUp("9", "10", "")', '"10"');
+shouldBe('stepDown("19", "10", "0")', '"10"');
+shouldBe('stepUp("89", "10", "99")', '"90"');
+debug('Huge value and small step');
+shouldBe('input.min = ""; stepUp("1e+38", "1", "", 999)', '"1e+38"');
+shouldBe('input.max = ""; stepDown("1e+38", "1", "", 999)', '"1e+38"');
+debug('Fractional numbers');
+shouldBe('input.min = ""; stepUp("0", "0.33333333333333333", "", 3)', '"1"');
+shouldBe('stepUp("1", "0.1", "", 10)', '"2"');
+shouldBe('input.min = "0"; stepUp("0", "0.003921568627450980", "1", 255)', '"1"');
+debug('Rounding');
+shouldBe('stepUp("5.005", "0.005", "", 2)', '"5.015"');
+shouldBe('stepUp("5.005", "0.005", "", 11)', '"5.06"');
+shouldBe('stepUp("5.005", "0.005", "", 12)', '"5.065"');
+shouldBe('stepUpExplicitBounds("4", "9", "0.005", "5.005", 2)', '"5.015"');
+shouldBe('stepUpExplicitBounds("4", "9", "0.005", "5.005", 11)', '"5.06"');
+shouldBe('stepUpExplicitBounds("4", "9", "0.005", "5.005", 12)', '"5.065"');
+
+debug('');
+debug('Range type');
+input.type = 'range';
+debug('Function arguments are (min, max, step, value, [stepCount]).');
+debug('Using the default values');
+shouldBe('stepUpExplicitBounds(null, null, null, "")', '"51"');
+shouldBe('stepDownExplicitBounds(null, null, null, "")', '"49"');
+shouldBe('stepUpExplicitBounds(null, null, "any", "")', '"51"');
+shouldBe('stepDownExplicitBounds(null, null, "any", "")', '"49"');
+shouldBe('stepUpExplicitBounds(null, null, "foo", "")', '"51"');
+shouldBe('stepDownExplicitBounds(null, null, "foo", "")', '"49"');
+shouldBe('stepUpExplicitBounds(null, null, null, "foo")', '"51"');
+shouldBe('stepDownExplicitBounds(null, null, null, "foo")', '"49"');
+shouldBe('stepUpExplicitBounds(null, null, "any", "foo")', '"51"');
+shouldBe('stepDownExplicitBounds(null, null, "any", "foo")', '"49"');
+shouldBe('stepUpExplicitBounds(null, null, "foo", "foo")', '"51"');
+shouldBe('stepDownExplicitBounds(null, null, "foo", "foo")', '"49"');
+debug('Normal cases');
+shouldBe('stepUpExplicitBounds(null, null, null, "0")', '"1"');
+shouldBe('stepUpExplicitBounds(null, null, null, "1", 2)', '"3"');
+shouldBe('stepUpExplicitBounds(null, null, null, "3", -1)', '"2"');
+shouldBe('stepDownExplicitBounds("-100", null, null, "2")', '"1"');
+shouldBe('stepDownExplicitBounds("-100", null, null, "1", 2)', '"-1"');
+shouldBe('stepDownExplicitBounds("-100", null, null, "-1", -1)', '"0"');
+debug('Invalid step value');
+shouldBe('stepUpExplicitBounds(null, null, "foo", "0")', '"1"');
+shouldBe('stepUpExplicitBounds(null, null, "0", "1")', '"2"');
+shouldBe('stepUpExplicitBounds(null, null, "-1", "2")', '"3"');
+shouldBe('stepDownExplicitBounds(null, null, "foo", "1")', '"0"');
+shouldBe('stepDownExplicitBounds(null, null, "0", "2")', '"1"');
+shouldBe('stepDownExplicitBounds(null, null, "-1", "3")', '"2"');
+debug('Step=any');
+shouldBe('stepUpExplicitBounds(null, null, "any", "1")', '"2"');
+shouldBe('stepDownExplicitBounds(null, null, "any", "1")', '"0"');
+debug('Overflow/underflow');
+shouldBe('stepUpExplicitBounds(null, "100", "1", "99")', '"100"');
+shouldBe('stepUpExplicitBounds(null, "100", "1", "100")', '"100"');
+shouldBe('stepUpExplicitBounds(null, "100", "1", "99", 2)', '"100"');
+shouldBe('stepDownExplicitBounds("0", null, "1", "1")', '"0"');
+shouldBe('stepDownExplicitBounds("0", null, "1", "0")', '"0"');
+shouldBe('stepDownExplicitBounds("0", null, "1", "1", 2)', '"0"');
+shouldBe('stepDownExplicitBounds(null, null, "3.40282346e+38", "1", 2)', '"0"');
+shouldBe('stepUpExplicitBounds(-100, 0, 1, -1)', '"0"');
+shouldBe('stepUpExplicitBounds(null, 0, 1, 0)', '"0"');
+shouldBe('stepUpExplicitBounds(-100, 0, 1, -1, 2)', '"0"');
+shouldBe('stepUpExplicitBounds(null, null, "3.40282346e+38", "1", 2)', '"0"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepUpExplicitBounds(null, null, 2, 1)', '"4"');
+shouldBe('stepUpExplicitBounds(0, null, 10, 9, 9)', '"100"');
+shouldBe('stepDownExplicitBounds(0, null, 10, 19)', '"10"');
+debug('value + step is <= max, but rounded result would be > max.');
+shouldBe('stepUpExplicitBounds(null, 99, 10, 89)', '"90"');
+debug('Huge value and small step');
+shouldBe('stepUpExplicitBounds(0, 1e38, 1, 1e38, 999)', '"1e+38"');
+shouldBe('stepDownExplicitBounds(0, 1e38, 1, 1e38, 999)', '"1e+38"');
+debug('Fractional numbers');
+shouldBe('stepUpExplicitBounds(null, null, 0.33333333333333333, 0, 3)', '"1"');
+shouldBe('stepUpExplicitBounds(null, null, 0.1, 1)', '"1.1"');
+shouldBe('stepUpExplicitBounds(null, null, 0.1, 1, 8)', '"1.8"');
+shouldBe('stepUpExplicitBounds(null, null, 0.1, 1, 10)', '"2"');
+shouldBe('stepUpExplicitBounds(0, 1, 0.003921568627450980, 0, 255)', '"1"');
+shouldBe('stepDownExplicitBounds(null, null, 0.1, 1, 8)', '"0.2"');
+shouldBe('stepDownExplicitBounds(null, null, 0.1, 1)', '"0.9"');
+
+debug('');
+debug('Time type');
+input.type = 'time';
+debug('Function arguments are (value, step, {min or max}, [stepCount]).');
+debug('Normal cases');
+shouldBe('stepUp("20:13", null, null)', '"20:14"');
+shouldBe('stepDown("20:13", null, null)', '"20:12"');
+shouldBe('stepUp("20:13", null, null, 10)', '"20:23"');
+shouldBe('stepDown("20:13", null, null, 11)', '"20:02"');
+shouldBe('stepUp("20:13", "4", null, 2)', '"20:13:08"');
+shouldBe('stepDown("20:13", "4", null, 3)', '"20:12:48"');
+debug('Step=any');
+shouldBe('stepUp("20:13", "any", null)', '"20:13"');
+shouldBe('stepDown("20:13", "any", null)', '"20:13"');
+debug('Overflow/underflow');
+shouldBe('stepUp("20:13", "3.40282346e+38", null)', '"23:59:59.999"');
+shouldBe('stepDown("20:13", "3.40282346e+38", null)', '"00:00:00.000"');
+shouldBe('stepUp("20:13", "1", "20:13")', '"20:13"');
+shouldBe('stepDown("20:13", "1", "20:13")', '"20:13"');
+shouldBe('stepUp("23:59", null, null)', '"23:59"');
+shouldBe('stepDown("00:00", null, null)', '"00:00"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepDown("20:13", "3", "20:12:56")', '"20:12:59"');
+shouldBe('stepUp("00:13", "7", "")', '"00:13:04"');
+
+debug('');
+debug('Week type');
+input.type = 'week';
+debug('Function arguments are (value, step, {min or max}, [stepCount]).');
+debug('Normal cases');
+shouldBe('stepUp("2010-W02", null, null)', '"2010-W03"');
+shouldBe('stepDown("2010-W02", null, null)', '"2010-W01"');
+shouldBe('stepUp("2010-W02", null, null, 10)', '"2010-W12"');
+shouldBe('stepDown("2010-W02", null, null, 11)', '"2009-W44"');
+shouldBe('stepUp("1970-W01", "4", null, 2)', '"1970-W09"');
+shouldBe('stepDown("1970-W01", "4", null, 3)', '"1969-W41"');
+debug('Step=any');
+shouldBe('stepUp("2010-W02", "any", null)', '"2010-W02"');
+shouldBe('stepDown("2010-W02", "any", null)', '"2010-W02"');
+debug('Overflow/underflow');
+shouldBe('stepUp("2010-W02", "3.40282346e+38", null)', '"275760-W37"');
+shouldBe('stepDown("2010-W02", "3.40282346e+38", null)', '"1970-W01"');
+shouldBe('stepUp("2010-W02", "1", "2010-W02")', '"2010-W02"');
+shouldBe('stepDown("2010-W02", "1", "2010-W02")', '"2010-W02"');
+debug('stepDown()/stepUp() for stepMismatch values');
+shouldBe('stepDown("2010-W02", "2", "2009-W52")', '"2010-W01"');
+shouldBe('stepUp("1970-W02", "4", "")', '"1970-W05"');
+
+debug('');
+var successfullyParsed = true;
diff --git a/WebCore/ChangeLog b/WebCore/ChangeLog
index 4b73d1a..373a679 100644
--- a/WebCore/ChangeLog
+++ b/WebCore/ChangeLog
@@ -1,3 +1,67 @@
+2010-11-29  Dai Mikurube  <dmikurube at google.com>
+
+        Reviewed by Kent Tamura.
+
+        when empty, clicking "down" on outer-spin-button returns "max value"
+        https://bugs.webkit.org/show_bug.cgi?id=45491
+
+        Modified stepping-up/down from renderer
+        - to clamp steps,
+        - to handle empty values (described below), and
+        - to apply them for range type inputs.
+
+        Stepping-up/down for empty values are handled "the empty as 0."
+        For example :
+        * If 0 is in-range, and matches to step value
+          "down" -> -step
+          "up" -> +step
+          If -step or +step is out of range, new value should be 0.
+
+        * If 0 is smaller than the minimum value
+          "down" -> the minimum value
+          "up" -> the minimum value
+
+        * If 0 is larger than the maximum value
+          "down" -> the maximum value
+          "up" -> the maximum value
+
+        * If 0 is in-range, but not matched to step value
+          "down" -> smaler matched value nearest to 0.
+            e.g. <input type=number min=-100 step=3> -> -1
+          "up" -> larger matched value nearest to 0.
+            e.g. <input type=number min=-100 step=3> -> 2
+
+        As for date/datetime-local/month/time/week types, the empty is assumed as "current local date/time".
+        As for datetime type, the empty is assumed as "current date/time in UTC".
+
+        As for range input types, changed stepping from renderer to use stepUpFromRenderer().
+        It was calculated with stepUp() from RangeInputType::handleKeydownEvent().
+
+        Test: fast/forms/input-stepup-stepdown-from-renderer.html
+
+        * html/BaseDateAndTimeInputType.cpp:
+        (WebCore::BaseDateAndTimeInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current local time
+        * html/BaseDateAndTimeInputType.h:
+        * html/DateTimeInputType.cpp:
+        (WebCore::DateTimeInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current UTC time
+        * html/DateTimeInputType.h:
+        * html/HTMLInputElement.cpp:
+        (WebCore::HTMLInputElement::stepUpFromRenderer): Modified it to clamp steps, support empty values and support range type inputs
+        * html/HTMLInputElement.h:
+        (WebCore::HTMLInputElement::isRangeControl):
+        * html/InputType.cpp:
+        (WebCore::InputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns 0
+        * html/InputType.h:
+        * html/MonthInputType.cpp:
+        (WebCore::MonthInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current local month
+        * html/MonthInputType.h:
+        * html/RangeInputType.cpp:
+        (WebCore::RangeInputType::handleKeydownEvent): Added comments and modified it to use stepUpFromRenderer()
+        * html/TimeInputType.cpp:
+        (WebCore::TimeInputType::defaultValueForStepUp): Added defaultValueForStepUp() which returns the current local time
+        * html/TimeInputType.h:
+        * manual-tests/input-type-datetime-default-value.html: Added manual tests for default values of date/time inputs since they are "the current local/UTC time", which cannot be tested automatically.
+
 2010-11-29  Adam Barth  <abarth at webkit.org>
 
         Reviewed by Darin Adler.
diff --git a/WebCore/html/BaseDateAndTimeInputType.cpp b/WebCore/html/BaseDateAndTimeInputType.cpp
index e780ed6..70243e5 100644
--- a/WebCore/html/BaseDateAndTimeInputType.cpp
+++ b/WebCore/html/BaseDateAndTimeInputType.cpp
@@ -35,6 +35,8 @@
 #include "HTMLInputElement.h"
 #include "HTMLNames.h"
 #include <limits>
+#include <wtf/CurrentTime.h>
+#include <wtf/DateMath.h>
 #include <wtf/MathExtras.h>
 #include <wtf/PassOwnPtr.h>
 #include <wtf/text/WTFString.h>
@@ -91,6 +93,15 @@ bool BaseDateAndTimeInputType::rangeOverflow(const String& value) const
     return isfinite(doubleValue) && doubleValue > maximum();
 }
 
+double BaseDateAndTimeInputType::defaultValueForStepUp() const
+{
+    double ms = currentTimeMS();
+    double utcOffset = calculateUTCOffset();
+    double dstOffset = calculateDSTOffset(ms, utcOffset);
+    int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
+    return ms + (offset * msPerMinute);
+}
+
 bool BaseDateAndTimeInputType::stepMismatch(const String& value, double step) const
 {
     const double nan = numeric_limits<double>::quiet_NaN();
diff --git a/WebCore/html/BaseDateAndTimeInputType.h b/WebCore/html/BaseDateAndTimeInputType.h
index 11c60af..ad7302a 100644
--- a/WebCore/html/BaseDateAndTimeInputType.h
+++ b/WebCore/html/BaseDateAndTimeInputType.h
@@ -55,6 +55,7 @@ private:
     virtual bool typeMismatch() const;
     virtual bool rangeUnderflow(const String&) const;
     virtual bool rangeOverflow(const String&) const;
+    virtual double defaultValueForStepUp() const;
     virtual bool stepMismatch(const String&, double) const;
     virtual double stepBase() const;
     virtual bool handleKeydownEvent(KeyboardEvent*);
diff --git a/WebCore/html/DateTimeInputType.cpp b/WebCore/html/DateTimeInputType.cpp
index c78a540..78641f8 100644
--- a/WebCore/html/DateTimeInputType.cpp
+++ b/WebCore/html/DateTimeInputType.cpp
@@ -34,6 +34,7 @@
 #include "DateComponents.h"
 #include "HTMLInputElement.h"
 #include "HTMLNames.h"
+#include <wtf/CurrentTime.h>
 #include <wtf/PassOwnPtr.h>
 
 namespace WebCore {
@@ -53,6 +54,11 @@ const AtomicString& DateTimeInputType::formControlType() const
     return InputTypeNames::datetime();
 }
 
+double DateTimeInputType::defaultValueForStepUp() const
+{
+    return currentTimeMS();
+}
+
 double DateTimeInputType::minimum() const
 {
     return parseToDouble(element()->fastGetAttribute(minAttr), DateComponents::minimumDateTime());
diff --git a/WebCore/html/DateTimeInputType.h b/WebCore/html/DateTimeInputType.h
index 140975b..9a0efd1 100644
--- a/WebCore/html/DateTimeInputType.h
+++ b/WebCore/html/DateTimeInputType.h
@@ -42,6 +42,7 @@ public:
 private:
     DateTimeInputType(HTMLInputElement* element) : BaseDateAndTimeInputType(element) { }
     virtual const AtomicString& formControlType() const;
+    virtual double defaultValueForStepUp() const;
     virtual double minimum() const;
     virtual double maximum() const;
     virtual double defaultStep() const;
diff --git a/WebCore/html/HTMLInputElement.cpp b/WebCore/html/HTMLInputElement.cpp
index 55fa195..3d17194 100644
--- a/WebCore/html/HTMLInputElement.cpp
+++ b/WebCore/html/HTMLInputElement.cpp
@@ -1859,37 +1859,113 @@ HTMLOptionElement* HTMLInputElement::selectedOption() const
 void HTMLInputElement::stepUpFromRenderer(int n)
 {
     // The differences from stepUp()/stepDown():
-    // If the current value is not a number, the value will be
-    //  - The value should be the minimum value if n > 0
-    //  - The value should be the maximum value if n < 0
+    //
+    // Difference 1: the current value
+    // If the current value is not a number, including empty, the current value is assumed as 0.
+    //   * If 0 is in-range, and matches to step value
+    //     - The value should be the +step if n > 0
+    //     - The value should be the -step if n < 0
+    //     If -step or +step is out of range, new value should be 0.
+    //   * If 0 is smaller than the minimum value
+    //     - The value should be the minimum value for any n
+    //   * If 0 is larger than the maximum value
+    //     - The value should be the maximum value for any n
+    //   * If 0 is in-range, but not matched to step value
+    //     - The value should be the larger matched value nearest to 0 if n > 0
+    //       e.g. <input type=number min=-100 step=3> -> 2
+    //     - The value should be the smaler matched value nearest to 0 if n < 0
+    //       e.g. <input type=number min=-100 step=3> -> -1
+    //   As for date/datetime-local/month/time/week types, the current value is assumed as "the current local date/time".
+    //   As for datetime type, the current value is assumed as "the current date/time in UTC".
     // If the current value is smaller than the minimum value:
     //  - The value should be the minimum value if n > 0
     //  - Nothing should happen if n < 0
     // If the current value is larger than the maximum value:
     //  - The value should be the maximum value if n < 0
     //  - Nothing should happen if n > 0
-
-    ASSERT(hasSpinButton());
-    if (!hasSpinButton())
+    //
+    // Difference 2: clamping steps
+    // If the current value is not matched to step value:
+    // - The value should be the larger matched value nearest to 0 if n > 0
+    //   e.g. <input type=number value=3 min=-100 step=3> -> 5
+    // - The value should be the smaler matched value nearest to 0 if n < 0
+    //   e.g. <input type=number value=3 min=-100 step=3> -> 2
+    //
+    // n is assumed as -n if step < 0.
+
+    ASSERT(hasSpinButton() || m_inputType->isRangeControl());
+    if (!hasSpinButton() && !m_inputType->isRangeControl())
         return;
     ASSERT(n);
     if (!n)
         return;
 
+    unsigned stepDecimalPlaces, baseDecimalPlaces;
+    double step, base;
+    // The value will be the default value after stepping for <input value=(empty/invalid) step="any" />
+    // FIXME: Not any changes after stepping, even if it is an invalid value, may be better.
+    // (e.g. Stepping-up for <input type="number" value="foo" step="any" /> => "foo")
+    if (equalIgnoringCase(getAttribute(stepAttr), "any"))
+        step = 0;
+    else if (!getAllowedValueStepWithDecimalPlaces(&step, &stepDecimalPlaces))
+        return;
+    base = m_inputType->stepBaseWithDecimalPlaces(&baseDecimalPlaces);
+    baseDecimalPlaces = min(baseDecimalPlaces, 16u);
+
+    int sign;
+    if (step > 0)
+        sign = n;
+    else if (step < 0)
+        sign = -n;
+    else
+        sign = 0;
+
     const double nan = numeric_limits<double>::quiet_NaN();
     String currentStringValue = value();
     double current = m_inputType->parseToDouble(currentStringValue, nan);
-    if (!isfinite(current) || (n > 0 && current < m_inputType->minimum()) || (n < 0 && current > m_inputType->maximum()))
-        setValue(m_inputType->serialize(n > 0 ? m_inputType->minimum() : m_inputType->maximum()));
+    if (!isfinite(current)) {
+        ExceptionCode ec;
+        current = m_inputType->defaultValueForStepUp();
+        setValueAsNumber(current, ec);
+    }
+    if ((sign > 0 && current < m_inputType->minimum()) || (sign < 0 && current > m_inputType->maximum()))
+        setValue(m_inputType->serialize(sign > 0 ? m_inputType->minimum() : m_inputType->maximum()));
     else {
         ExceptionCode ec;
-        stepUp(n, ec);
+        if (stepMismatch(currentStringValue)) {
+            ASSERT(step);
+            double newValue;
+            double scale = pow(10.0, static_cast<double>(max(stepDecimalPlaces, baseDecimalPlaces)));
+
+            if (sign < 0)
+                newValue = round((base + floor((current - base) / step) * step) * scale) / scale;
+            else if (sign > 0)
+                newValue = round((base + ceil((current - base) / step) * step) * scale) / scale;
+            else
+                newValue = current;
+
+            if (newValue < m_inputType->minimum())
+                newValue = m_inputType->minimum();
+            if (newValue > m_inputType->maximum())
+                newValue = m_inputType->maximum();
+
+            setValueAsNumber(newValue, ec);
+            current = newValue;
+            if (n > 1)
+                applyStep(n - 1, ec);
+            else if (n < -1)
+                applyStep(n + 1, ec);
+        } else
+            applyStep(n, ec);
     }
 
     if (currentStringValue != value()) {
         if (renderer() && renderer()->isTextField())
             toRenderTextControl(renderer())->setChangedSinceLastChangeEvent(true);
-        dispatchEvent(Event::create(eventNames().inputEvent, true, false));
+        if (m_inputType->isRangeControl())
+            dispatchFormControlChangeEvent();
+        else
+            dispatchEvent(Event::create(eventNames().inputEvent, true, false));
     }
 }
 
diff --git a/WebCore/html/HTMLInputElement.h b/WebCore/html/HTMLInputElement.h
index 52460c7..0f0e97e 100644
--- a/WebCore/html/HTMLInputElement.h
+++ b/WebCore/html/HTMLInputElement.h
@@ -27,6 +27,7 @@
 #include "HTMLFormControlElement.h"
 #include "HTMLFormElement.h"
 #include "InputElement.h"
+#include "InputType.h"
 #include <wtf/OwnPtr.h>
 
 namespace WebCore {
diff --git a/WebCore/html/InputType.cpp b/WebCore/html/InputType.cpp
index 294f75e..f298932 100644
--- a/WebCore/html/InputType.cpp
+++ b/WebCore/html/InputType.cpp
@@ -125,6 +125,11 @@ bool InputType::isTextType() const
     return false;
 }
 
+bool InputType::isRangeControl() const
+{
+    return false;
+}
+
 bool InputType::saveFormControlState(String& result) const
 {
     String currentValue = element()->value();
@@ -213,6 +218,11 @@ bool InputType::rangeOverflow(const String&) const
     return false;
 }
 
+double InputType::defaultValueForStepUp() const
+{
+    return 0;
+}
+
 double InputType::minimum() const
 {
     ASSERT_NOT_REACHED();
diff --git a/WebCore/html/InputType.h b/WebCore/html/InputType.h
index c1417fa..500ccb3 100644
--- a/WebCore/html/InputType.h
+++ b/WebCore/html/InputType.h
@@ -60,6 +60,7 @@ public:
 
     virtual bool isTextField() const;
     virtual bool isTextType() const;
+    virtual bool isRangeControl() const;
     virtual const AtomicString& formControlType() const = 0;
 
     // Form value functions
@@ -89,6 +90,7 @@ public:
     virtual bool patternMismatch(const String&) const;
     virtual bool rangeUnderflow(const String&) const;
     virtual bool rangeOverflow(const String&) const;
+    virtual double defaultValueForStepUp() const;
     virtual double minimum() const;
     virtual double maximum() const;
     virtual bool stepMismatch(const String&, double) const;
diff --git a/WebCore/html/MonthInputType.cpp b/WebCore/html/MonthInputType.cpp
index cbde5cb..38f9d00 100644
--- a/WebCore/html/MonthInputType.cpp
+++ b/WebCore/html/MonthInputType.cpp
@@ -34,6 +34,8 @@
 #include "DateComponents.h"
 #include "HTMLInputElement.h"
 #include "HTMLNames.h"
+#include <wtf/CurrentTime.h>
+#include <wtf/DateMath.h>
 #include <wtf/MathExtras.h>
 #include <wtf/PassOwnPtr.h>
 
@@ -74,6 +76,21 @@ void MonthInputType::setValueAsDate(double value, ExceptionCode&) const
     element()->setValue(date.toString());
 }
 
+double MonthInputType::defaultValueForStepUp() const
+{
+    double current = currentTimeMS();
+    double utcOffset = calculateUTCOffset();
+    double dstOffset = calculateDSTOffset(current, utcOffset);
+    int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
+    current += offset * msPerMinute;
+
+    DateComponents date;
+    date.setMillisecondsSinceEpochForMonth(current);
+    double months = date.monthsSinceEpoch();
+    ASSERT(isfinite(months));
+    return months;
+}
+
 double MonthInputType::minimum() const
 {
     return parseToDouble(element()->fastGetAttribute(minAttr), DateComponents::minimumMonth());
diff --git a/WebCore/html/MonthInputType.h b/WebCore/html/MonthInputType.h
index 50cf7d5..23536e2 100644
--- a/WebCore/html/MonthInputType.h
+++ b/WebCore/html/MonthInputType.h
@@ -45,6 +45,7 @@ private:
     virtual double valueAsDate() const;
     virtual void setValueAsDate(double, ExceptionCode&) const;
     virtual double parseToDouble(const String&, double) const;
+    virtual double defaultValueForStepUp() const;
     virtual double minimum() const;
     virtual double maximum() const;
     virtual double defaultStep() const;
diff --git a/WebCore/html/RangeInputType.cpp b/WebCore/html/RangeInputType.cpp
index ad47f14..50520cd 100644
--- a/WebCore/html/RangeInputType.cpp
+++ b/WebCore/html/RangeInputType.cpp
@@ -55,6 +55,11 @@ PassOwnPtr<InputType> RangeInputType::create(HTMLInputElement* element)
     return adoptPtr(new RangeInputType(element));
 }
 
+bool RangeInputType::isRangeControl() const
+{
+    return true;
+}
+
 const AtomicString& RangeInputType::formControlType() const
 {
     return InputTypeNames::range();
@@ -143,6 +148,9 @@ bool RangeInputType::handleKeydownEvent(KeyboardEvent* event)
         double step = (max - min) / 100;
         double current = parseToDouble(element()->value(), numeric_limits<double>::quiet_NaN());
         ASSERT(isfinite(current));
+        // Stepping-up and -down for step="any" are special cases for type="range" from renderer for convenient.
+        // No stepping normally for step="any". They cannot be handled by stepUp()/stepDown()/stepUpFromRenderer().
+        // So calculating values stepped-up or -down here.
         double newValue;
         if (key == "Up" || key == "Right") {
             newValue = current + step;
@@ -159,10 +167,8 @@ bool RangeInputType::handleKeydownEvent(KeyboardEvent* event)
         }
     } else {
         int stepMagnification = (key == "Up" || key == "Right") ? 1 : -1;
-        String lastStringValue = element()->value();
-        element()->stepUp(stepMagnification, ec);
-        if (lastStringValue != element()->value())
-            element()->dispatchFormControlChangeEvent();
+        // Reasonable stepping-up/-down by stepUpFromRenderer() unless step="any"
+        element()->stepUpFromRenderer(stepMagnification);
     }
     event->setDefaultHandled();
     return true;
diff --git a/WebCore/html/RangeInputType.h b/WebCore/html/RangeInputType.h
index c2bbb0f..14280e8 100644
--- a/WebCore/html/RangeInputType.h
+++ b/WebCore/html/RangeInputType.h
@@ -41,6 +41,7 @@ public:
 
 private:
     RangeInputType(HTMLInputElement* element) : InputType(element) { }
+    virtual bool isRangeControl() const;
     virtual const AtomicString& formControlType() const;
     virtual double valueAsNumber() const;
     virtual void setValueAsNumber(double, ExceptionCode&) const;
diff --git a/WebCore/html/TimeInputType.cpp b/WebCore/html/TimeInputType.cpp
index 27dce90..f42f34c 100644
--- a/WebCore/html/TimeInputType.cpp
+++ b/WebCore/html/TimeInputType.cpp
@@ -34,6 +34,8 @@
 #include "DateComponents.h"
 #include "HTMLInputElement.h"
 #include "HTMLNames.h"
+#include <wtf/CurrentTime.h>
+#include <wtf/DateMath.h>
 #include <wtf/PassOwnPtr.h>
 
 namespace WebCore {
@@ -53,6 +55,21 @@ const AtomicString& TimeInputType::formControlType() const
     return InputTypeNames::time();
 }
 
+double TimeInputType::defaultValueForStepUp() const
+{
+    double current = currentTimeMS();
+    double utcOffset = calculateUTCOffset();
+    double dstOffset = calculateDSTOffset(current, utcOffset);
+    int offset = static_cast<int>((utcOffset + dstOffset) / msPerMinute);
+    current += offset * msPerMinute;
+
+    DateComponents date;
+    date.setMillisecondsSinceMidnight(current);
+    double milliseconds = date.millisecondsSinceEpoch();
+    ASSERT(isfinite(milliseconds));
+    return milliseconds;
+}
+
 double TimeInputType::minimum() const
 {
     return parseToDouble(element()->fastGetAttribute(minAttr), DateComponents::minimumTime());
diff --git a/WebCore/html/TimeInputType.h b/WebCore/html/TimeInputType.h
index 6070fa0..b50d987 100644
--- a/WebCore/html/TimeInputType.h
+++ b/WebCore/html/TimeInputType.h
@@ -42,6 +42,7 @@ public:
 private:
     TimeInputType(HTMLInputElement* element) : BaseDateAndTimeInputType(element) { }
     virtual const AtomicString& formControlType() const;
+    virtual double defaultValueForStepUp() const;
     virtual double minimum() const;
     virtual double maximum() const;
     virtual double defaultStep() const;
diff --git a/WebCore/manual-tests/input-type-datetime-default-value.html b/WebCore/manual-tests/input-type-datetime-default-value.html
new file mode 100644
index 0000000..8be15d8
--- /dev/null
+++ b/WebCore/manual-tests/input-type-datetime-default-value.html
@@ -0,0 +1,80 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<html>
+<head><title>Default values for date/time input (type= date, datetime, datetime-local, month, time, week)</title></head>
+
+<p>Enter Up or Down, or click the spin buttons for each input field.</p>
+
+<form>
+  <ul>
+    <li>Emtpy values, no steps
+      <ul>
+        <li>date: <input type="date" size="32" value="" />
+        <li>datetime: <input type="datetime"  size="32" value="" />
+        <li>datetime-local: <input type="datetime-local" size="32" value="" />
+        <li>month: <input type="month" size="32" value="" />
+        <li>time: <input type="time" size="32" value="" />
+        <li>week <input type="week" size="32" value="" />
+      </ul>
+    <li>Invalid values, no steps
+      <ul>
+        <li>date: <input type="date" size="32" value="foo" />
+        <li>datetime: <input type="datetime"  size="32" value="foo" />
+        <li>datetime-local: <input type="datetime-local" size="32" value="foo" />
+        <li>month: <input type="month" size="32" value="foo" />
+        <li>time: <input type="time" size="32" value="foo" />
+        <li>week <input type="week" size="32" value="foo" />
+      </ul>
+    <li>Emtpy values, invalid steps
+      <ul>
+        <li>date: <input type="date" size="32" value="" step="foo" />
+        <li>datetime: <input type="datetime"  size="32" value="" step="foo" />
+        <li>datetime-local: <input type="datetime-local" size="32" value="" step="foo" />
+        <li>month: <input type="month" size="32" value="" step="foo" />
+        <li>time: <input type="time" size="32" value="" step="foo" />
+        <li>week <input type="week" size="32" value="" step="foo" />
+      </ul>
+    <li>Invalid values, invalid steps
+      <ul>
+        <li>date: <input type="date" size="32" value="foo" step="foo" />
+        <li>datetime: <input type="datetime"  size="32" value="foo" step="foo" />
+        <li>datetime-local: <input type="datetime-local" size="32" value="foo" step="foo" />
+        <li>month: <input type="month" size="32" value="foo" step="foo" />
+        <li>time: <input type="time" size="32" value="foo" step="foo" />
+        <li>week <input type="week" size="32" value="foo" step="foo" />
+      </ul>
+    <li>Emtpy values, step=any
+      <ul>s
+        <li>date: <input type="date" size="32" value="" step="any" />
+        <li>datetime: <input type="datetime"  size="32" value="" step="any" />
+        <li>datetime-local: <input type="datetime-local" size="32" value="" step="any" />
+        <li>month: <input type="month" size="32" value="" step="any" />
+        <li>time: <input type="time" size="32" value="" step="any" />
+        <li>week <input type="week" size="32" value="" step="any" />
+      </ul>
+    <li>Invalid values, step=any
+      <ul>
+        <li>date: <input type="date" size="32" value="foo" step="any" />
+        <li>datetime: <input type="datetime"  size="32" value="foo" step="any" />
+        <li>datetime-local: <input type="datetime-local" size="32" value="foo" step="any" />
+        <li>month: <input type="month" size="32" value="foo" step="any" />
+        <li>time: <input type="time" size="32" value="foo" step="any" />
+        <li>week <input type="week" size="32" value="foo" step="any" />
+      </ul>
+  </ul>
+</form>
+
+<p>The input fields should show the current local/UTC date/time (with + or - a unit date/time described below except for step=any).</p>
+
+<p>Unit dates/times</p>
+<ul>
+  <li>date: 1 day (local time)
+  <li>datetime: 1 minute (UTC)
+  <li>datetime-local: 1 minute (local time)
+  <li>month: 1 month (local time)
+  <li>time: 1 minute (local time)
+  <li>week: 1 week (local time)
+</ul>
+
+<p>As for step=any, the values don't change by stepping-up/-down.<p>
+
+</body></html>

-- 
WebKit Debian packaging



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