Exemplo n.º 1
0
std::pair<String, String> InputType::validationMessage(const InputTypeView& inputTypeView) const
{
    const String value = element().value();

    // The order of the following checks is meaningful. e.g. We'd like to show the
    // badInput message even if the control has other validation errors.
    if (inputTypeView.hasBadInput())
        return std::make_pair(badInputText(), emptyString());

    if (valueMissing(value))
        return std::make_pair(valueMissingText(), emptyString());

    if (typeMismatch())
        return std::make_pair(typeMismatchText(), emptyString());

    if (patternMismatch(value)) {
        // https://html.spec.whatwg.org/multipage/forms.html#attr-input-pattern
        //   When an input element has a pattern attribute specified, authors
        //   should include a title attribute to give a description of the
        //   pattern. User agents may use the contents of this attribute, if it
        //   is present, when informing the user that the pattern is not matched
        return std::make_pair(locale().queryString(WebLocalizedString::ValidationPatternMismatch), element().fastGetAttribute(titleAttr).getString());
    }

    if (element().tooLong())
        return std::make_pair(locale().validationMessageTooLongText(value.length(), element().maxLength()), emptyString());

    if (element().tooShort())
        return std::make_pair(locale().validationMessageTooShortText(value.length(), element().minLength()), emptyString());

    if (!isSteppable())
        return std::make_pair(emptyString(), emptyString());

    const Decimal numericValue = parseToNumberOrNaN(value);
    if (!numericValue.isFinite())
        return std::make_pair(emptyString(), emptyString());

    StepRange stepRange(createStepRange(RejectAny));

    if (numericValue < stepRange.minimum())
        return std::make_pair(rangeUnderflowText(stepRange.minimum()), emptyString());

    if (numericValue > stepRange.maximum())
        return std::make_pair(rangeOverflowText(stepRange.maximum()), emptyString());

    if (stepRange.stepMismatch(numericValue)) {
        DCHECK(stepRange.hasStep());
        Decimal candidate1 = stepRange.clampValue(numericValue);
        String localizedCandidate1 = localizeValue(serialize(candidate1));
        Decimal candidate2 = candidate1 < numericValue ? candidate1 + stepRange.step() : candidate1 - stepRange.step();
        if (!candidate2.isFinite() || candidate2 < stepRange.minimum() || candidate2 > stepRange.maximum())
            return std::make_pair(locale().queryString(WebLocalizedString::ValidationStepMismatchCloseToLimit, localizedCandidate1), emptyString());
        String localizedCandidate2 = localizeValue(serialize(candidate2));
        if (candidate1 < candidate2)
            return std::make_pair(locale().queryString(WebLocalizedString::ValidationStepMismatch, localizedCandidate1, localizedCandidate2), emptyString());
        return std::make_pair(locale().queryString(WebLocalizedString::ValidationStepMismatch, localizedCandidate2, localizedCandidate1), emptyString());
    }

    return std::make_pair(emptyString(), emptyString());
}
Exemplo n.º 2
0
void RangeInputType::handleKeydownEvent(KeyboardEvent* event)
{
    if (element()->isDisabledOrReadOnly())
        return;

    const String& key = event->keyIdentifier();

    const Decimal current = parseToNumberOrNaN(element()->value());
    ASSERT(current.isFinite());

    StepRange stepRange(createStepRange(RejectAny));


    // FIXME: We can't use stepUp() for the step value "any". So, we increase
    // or decrease the value by 1/100 of the value range. Is it reasonable?
    const Decimal step = equalIgnoringCase(element()->fastGetAttribute(stepAttr), "any") ? (stepRange.maximum() - stepRange.minimum()) / 100 : stepRange.step();
    const Decimal bigStep = max((stepRange.maximum() - stepRange.minimum()) / 10, step);

    bool isVertical = false;
    if (element()->renderer()) {
        ControlPart part = element()->renderer()->style()->appearance();
        isVertical = part == SliderVerticalPart || part == MediaVolumeSliderPart;
    }

    Decimal newValue;
    if (key == "Up")
        newValue = current + step;
    else if (key == "Down")
        newValue = current - step;
    else if (key == "Left")
        newValue = isVertical ? current + step : current - step;
    else if (key == "Right")
        newValue = isVertical ? current - step : current + step;
    else if (key == "PageUp")
        newValue = current + bigStep;
    else if (key == "PageDown")
        newValue = current - bigStep;
    else if (key == "Home")
        newValue = isVertical ? stepRange.maximum() : stepRange.minimum();
    else if (key == "End")
        newValue = isVertical ? stepRange.minimum() : stepRange.maximum();
    else
        return; // Did not match any key binding.

    newValue = stepRange.clampValue(newValue);

    if (newValue != current) {
        EventQueueScope scope;
        ExceptionCode ec;
        TextFieldEventBehavior eventBehavior = DispatchChangeEvent;
        setValueAsDecimal(newValue, eventBehavior, ec);

        if (AXObjectCache::accessibilityEnabled())
            element()->document()->axObjectCache()->postNotification(element(), AXObjectCache::AXValueChanged, true);
        element()->dispatchFormControlChangeEvent();
    }

    event->setDefaultHandled();
}
Exemplo n.º 3
0
StepRange InputType::createStepRange(AnyStepHandling anyStepHandling, const Decimal& stepBaseDefault, const Decimal& minimumDefault, const Decimal& maximumDefault, const StepRange::StepDescription& stepDescription) const
{
    bool hasRangeLimitations = false;
    const Decimal stepBase = findStepBase(stepBaseDefault);
    Decimal minimum = parseToNumberOrNaN(element().fastGetAttribute(minAttr));
    if (minimum.isFinite())
        hasRangeLimitations = true;
    else
        minimum = minimumDefault;
    Decimal maximum = parseToNumberOrNaN(element().fastGetAttribute(maxAttr));
    if (maximum.isFinite())
        hasRangeLimitations = true;
    else
        maximum = maximumDefault;
    const Decimal step = StepRange::parseStep(anyStepHandling, stepDescription, element().fastGetAttribute(stepAttr));
    return StepRange(stepBase, minimum, maximum, hasRangeLimitations, step, stepDescription);
}
Exemplo n.º 4
0
bool InputType::stepMismatch(const String& value) const
{
    if (!isSteppable())
        return false;

    const Decimal numericValue = parseToNumberOrNaN(value);
    if (!numericValue.isFinite())
        return false;

    return createStepRange(RejectAny).stepMismatch(numericValue);
}
Exemplo n.º 5
0
bool InputType::rangeOverflow(const String& value) const
{
    if (!isSteppable())
        return false;

    const Decimal numericValue = parseToNumberOrNaN(value);
    if (!numericValue.isFinite())
        return false;

    return numericValue > createStepRange(RejectAny).maximum();
}
Exemplo n.º 6
0
bool InputType::isOutOfRange(const String& value) const
{
    if (!isSteppable())
        return false;

    const Decimal numericValue = parseToNumberOrNaN(value);
    if (!numericValue.isFinite())
        return true;

    StepRange stepRange(createStepRange(RejectAny));
    return numericValue < stepRange.minimum() || numericValue > stepRange.maximum();
}
Exemplo n.º 7
0
bool InputType::isOutOfRange(const String& value) const
{
    if (!isSteppable())
        return false;

    // This function should return true if either validity.rangeUnderflow or
    // validity.rangeOverflow are true.
    // If the INPUT has no value, they are false.
    const Decimal numericValue = parseToNumberOrNaN(value);
    if (!numericValue.isFinite())
        return false;

    StepRange stepRange(createStepRange(RejectAny));
    return stepRange.hasRangeLimitations() && (numericValue < stepRange.minimum() || numericValue > stepRange.maximum());
}
Exemplo n.º 8
0
bool InputType::isInRange(const String& value) const
{
    if (!isSteppable())
        return false;

    // This function should return true if both of validity.rangeUnderflow and
    // validity.rangeOverflow are false.
    // If the INPUT has no value, they are false.
    const Decimal numericValue = parseToNumberOrNaN(value);
    if (!numericValue.isFinite())
        return true;

    StepRange stepRange(createStepRange(RejectAny));
    return numericValue >= stepRange.minimum() && numericValue <= stepRange.maximum();
}
Exemplo n.º 9
0
void InputType::applyStep(int count, AnyStepHandling anyStepHandling, TextFieldEventBehavior eventBehavior, ExceptionCode& ec)
{
    StepRange stepRange(createStepRange(anyStepHandling));
    if (!stepRange.hasStep()) {
        ec = INVALID_STATE_ERR;
        return;
    }

    const Decimal current = parseToNumberOrNaN(element().value());
    if (!current.isFinite()) {
        ec = INVALID_STATE_ERR;
        return;
    }
    Decimal newValue = current + stepRange.step() * count;
    if (!newValue.isFinite()) {
        ec = INVALID_STATE_ERR;
        return;
    }

    const Decimal acceptableErrorValue = stepRange.acceptableError();
    if (newValue - stepRange.minimum() < -acceptableErrorValue) {
        ec = INVALID_STATE_ERR;
        return;
    }
    if (newValue < stepRange.minimum())
        newValue = stepRange.minimum();

    const AtomicString& stepString = element().fastGetAttribute(stepAttr);
    if (!equalIgnoringCase(stepString, "any"))
        newValue = stepRange.alignValueForStep(current, newValue);

    if (newValue - stepRange.maximum() > acceptableErrorValue) {
        ec = INVALID_STATE_ERR;
        return;
    }
    if (newValue > stepRange.maximum())
        newValue = stepRange.maximum();

    setValueAsDecimal(newValue, eventBehavior, ec);

    if (AXObjectCache* cache = element().document().existingAXObjectCache())
        cache->postNotification(&element(), AXObjectCache::AXValueChanged);
}
Exemplo n.º 10
0
String InputType::validationMessage() const
{
    String value = element().value();

    // The order of the following checks is meaningful. e.g. We'd like to show the
    // badInput message even if the control has other validation errors.
    if (hasBadInput())
        return badInputText();

    if (valueMissing(value))
        return valueMissingText();

    if (typeMismatch())
        return typeMismatchText();

    if (patternMismatch(value))
        return validationMessagePatternMismatchText();

    if (element().tooLong())
        return validationMessageTooLongText(numGraphemeClusters(value), element().maxLength());

    if (!isSteppable())
        return emptyString();

    const Decimal numericValue = parseToNumberOrNaN(value);
    if (!numericValue.isFinite())
        return emptyString();

    StepRange stepRange(createStepRange(RejectAny));

    if (numericValue < stepRange.minimum())
        return validationMessageRangeUnderflowText(serialize(stepRange.minimum()));

    if (numericValue > stepRange.maximum())
        return validationMessageRangeOverflowText(serialize(stepRange.maximum()));

    if (stepRange.stepMismatch(numericValue)) {
        const String stepString = stepRange.hasStep() ? serializeForNumberType(stepRange.step() / stepRange.stepScaleFactor()) : emptyString();
        return validationMessageStepMismatchText(serialize(stepRange.stepBase()), stepString);
    }

    return emptyString();
}
Exemplo n.º 11
0
void InputType::stepUpFromRenderer(int n)
{
    // The differences from stepUp()/stepDown():
    //
    // 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
    //
    // 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(isSteppable());
    if (!isSteppable())
        return;
    ASSERT(n);
    if (!n)
        return;

    StepRange stepRange(createStepRange(AnyIsDefaultStep));

    // 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 (!stepRange.hasStep())
      return;

    EventQueueScope scope;
    const Decimal step = stepRange.step();

    int sign;
    if (step > 0)
        sign = n;
    else if (step < 0)
        sign = -n;
    else
        sign = 0;

    String currentStringValue = element().value();
    Decimal current = parseToNumberOrNaN(currentStringValue);
    if (!current.isFinite()) {
        current = defaultValueForStepUp();
        const Decimal nextDiff = step * n;
        if (current < stepRange.minimum() - nextDiff)
            current = stepRange.minimum() - nextDiff;
        if (current > stepRange.maximum() - nextDiff)
            current = stepRange.maximum() - nextDiff;
        setValueAsDecimal(current, DispatchNoEvent, IGNORE_EXCEPTION);
    }
    if ((sign > 0 && current < stepRange.minimum()) || (sign < 0 && current > stepRange.maximum()))
        setValueAsDecimal(sign > 0 ? stepRange.minimum() : stepRange.maximum(), DispatchInputAndChangeEvent, IGNORE_EXCEPTION);
    else {
        if (stepMismatch(element().value())) {
            ASSERT(!step.isZero());
            const Decimal base = stepRange.stepBase();
            Decimal newValue;
            if (sign < 0)
                newValue = base + ((current - base) / step).floor() * step;
            else if (sign > 0)
                newValue = base + ((current - base) / step).ceiling() * step;
            else
                newValue = current;

            if (newValue < stepRange.minimum())
                newValue = stepRange.minimum();
            if (newValue > stepRange.maximum())
                newValue = stepRange.maximum();

            setValueAsDecimal(newValue, n == 1 || n == -1 ? DispatchInputAndChangeEvent : DispatchNoEvent, IGNORE_EXCEPTION);
            if (n > 1)
                applyStep(n - 1, AnyIsDefaultStep, DispatchInputAndChangeEvent, IGNORE_EXCEPTION);
            else if (n < -1)
                applyStep(n + 1, AnyIsDefaultStep, DispatchInputAndChangeEvent, IGNORE_EXCEPTION);
        } else
            applyStep(n, AnyIsDefaultStep, DispatchInputAndChangeEvent, IGNORE_EXCEPTION);
    }
}
Exemplo n.º 12
0
void InputType::stepUpFromLayoutObject(int n)
{
    // The only difference from stepUp()/stepDown() is the extra treatment
    // of the current value before applying the step:
    //
    // 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
    //
    // n is assumed as -n if step < 0.

    DCHECK(isSteppable());
    if (!isSteppable())
        return;
    DCHECK(n);
    if (!n)
        return;

    StepRange stepRange(createStepRange(AnyIsDefaultStep));

    // 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 (!stepRange.hasStep())
        return;

    EventQueueScope scope;
    const Decimal step = stepRange.step();

    int sign;
    if (step > 0)
        sign = n;
    else if (step < 0)
        sign = -n;
    else
        sign = 0;

    Decimal current = parseToNumberOrNaN(element().value());
    if (!current.isFinite()) {
        current = defaultValueForStepUp();
        const Decimal nextDiff = step * n;
        if (current < stepRange.minimum() - nextDiff)
            current = stepRange.minimum() - nextDiff;
        if (current > stepRange.maximum() - nextDiff)
            current = stepRange.maximum() - nextDiff;
        setValueAsDecimal(current, DispatchNoEvent, IGNORE_EXCEPTION);
    }
    if ((sign > 0 && current < stepRange.minimum()) || (sign < 0 && current > stepRange.maximum())) {
        setValueAsDecimal(sign > 0 ? stepRange.minimum() : stepRange.maximum(), DispatchChangeEvent, IGNORE_EXCEPTION);
        return;
    }
    if ((sign > 0 && current >= stepRange.maximum()) || (sign < 0 && current <= stepRange.minimum()))
        return;
    applyStep(current, n, AnyIsDefaultStep, DispatchChangeEvent, IGNORE_EXCEPTION);
}
Exemplo n.º 13
0
void RangeInputType::handleKeydownEvent(KeyboardEvent* event) {
  if (element().isDisabledOrReadOnly())
    return;

  const String& key = event->key();

  const Decimal current = parseToNumberOrNaN(element().value());
  DCHECK(current.isFinite());

  StepRange stepRange(createStepRange(RejectAny));

  // FIXME: We can't use stepUp() for the step value "any". So, we increase
  // or decrease the value by 1/100 of the value range. Is it reasonable?
  const Decimal step =
      equalIgnoringCase(element().fastGetAttribute(stepAttr), "any")
          ? (stepRange.maximum() - stepRange.minimum()) / 100
          : stepRange.step();
  const Decimal bigStep =
      std::max((stepRange.maximum() - stepRange.minimum()) / 10, step);

  TextDirection dir = LTR;
  bool isVertical = false;
  if (element().layoutObject()) {
    dir = computedTextDirection();
    ControlPart part = element().layoutObject()->style()->appearance();
    isVertical = part == SliderVerticalPart;
  }

  Decimal newValue;
  if (key == "ArrowUp")
    newValue = current + step;
  else if (key == "ArrowDown")
    newValue = current - step;
  else if (key == "ArrowLeft")
    newValue = (isVertical || dir == RTL) ? current + step : current - step;
  else if (key == "ArrowRight")
    newValue = (isVertical || dir == RTL) ? current - step : current + step;
  else if (key == "PageUp")
    newValue = current + bigStep;
  else if (key == "PageDown")
    newValue = current - bigStep;
  else if (key == "Home")
    newValue = isVertical ? stepRange.maximum() : stepRange.minimum();
  else if (key == "End")
    newValue = isVertical ? stepRange.minimum() : stepRange.maximum();
  else
    return;  // Did not match any key binding.

  newValue = stepRange.clampValue(newValue);

  if (newValue != current) {
    EventQueueScope scope;
    TextFieldEventBehavior eventBehavior = DispatchInputAndChangeEvent;
    setValueAsDecimal(newValue, eventBehavior, IGNORE_EXCEPTION);

    if (AXObjectCache* cache = element().document().existingAXObjectCache())
      cache->handleValueChanged(&element());
  }

  event->setDefaultHandled();
}