Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 216 insertions, 0 deletions

diff --git a/Source/WebCore/html/ValidityState.cpp b/Source/WebCore/html/ValidityState.cpp
new file mode 100644
index 0000000..2e65327
--- /dev/null
+++ b/Source/WebCore/html/ValidityState.cpp
@@ -0,0 +1,216 @@
+/*
+ * This file is part of the WebKit project.
+ *
+ * Copyright (C) 2009 Michelangelo De Simone <micdesim@gmail.com>
+ * Copyright (C) 2010 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "ValidityState.h"
+
+#include "HTMLInputElement.h"
+#include "HTMLNames.h"
+#include "HTMLSelectElement.h"
+#include "HTMLTextAreaElement.h"
+#include "HTMLTreeBuilder.h"
+#include "LocalizedStrings.h"
+#include <wtf/StdLibExtras.h>
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+String ValidityState::validationMessage() const
+{
+    if (!toHTMLElement(m_control)->willValidate())
+        return String();
+
+    if (customError())
+        return m_customErrorMessage;
+    HTMLElement* element = toHTMLElement(m_control);
+    bool isInputElement = element->isFormControlElement() && element->hasTagName(inputTag);
+    bool isTextAreaElement = element->isFormControlElement() && element->hasTagName(textareaTag);
+    // The order of the following checks is meaningful. e.g. We'd like to show the
+    // valueMissing message even if the control has other validation errors.
+    if (valueMissing()) {
+        if (element->hasTagName(selectTag))
+            return validationMessageValueMissingForSelectText();
+        if (isInputElement)
+            return static_cast<HTMLInputElement*>(element)->valueMissingText();
+        return validationMessageValueMissingText();
+    }
+    if (typeMismatch()) {
+        if (isInputElement)
+            return static_cast<HTMLInputElement*>(element)->typeMismatchText();
+        return validationMessageTypeMismatchText();
+    }
+    if (patternMismatch())
+        return validationMessagePatternMismatchText();
+    if (tooLong()) {
+        if (!isInputElement && !isTextAreaElement) {
+            ASSERT_NOT_REACHED();
+            return String();
+        }
+        HTMLTextFormControlElement* text = static_cast<HTMLTextFormControlElement*>(element);
+        return validationMessageTooLongText(numGraphemeClusters(text->value()), text->maxLength());
+    }
+    if (rangeUnderflow()) {
+        if (!isInputElement) {
+            ASSERT_NOT_REACHED();
+            return String();
+        }
+        return validationMessageRangeUnderflowText(static_cast<HTMLInputElement*>(element)->minimumString());
+    }
+    if (rangeOverflow()) {
+        if (!isInputElement) {
+            ASSERT_NOT_REACHED();
+            return String();
+        }
+        return validationMessageRangeOverflowText(static_cast<HTMLInputElement*>(element)->maximumString());
+    }
+    if (stepMismatch()) {
+        if (!isInputElement) {
+            ASSERT_NOT_REACHED();
+            return String();
+        }
+        HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
+        return validationMessageStepMismatchText(input->stepBaseString(), input->stepString());
+    }
+
+    return String();
+}
+
+void ValidityState::setCustomErrorMessage(const String& message)
+{
+    m_customErrorMessage = message;
+    if (m_control->isFormControlElement())
+        static_cast<HTMLFormControlElement*>(m_control)->setNeedsValidityCheck();
+}
+
+bool ValidityState::valueMissing() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    if (!element->willValidate())
+        return false;
+
+    if (element->hasTagName(inputTag)) {
+        HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
+        return input->valueMissing(input->value());
+    }
+    if (element->hasTagName(textareaTag)) {
+        HTMLTextAreaElement* textArea = static_cast<HTMLTextAreaElement*>(element);
+        return textArea->valueMissing(textArea->value());
+    }
+    if (element->hasTagName(selectTag)) {
+        HTMLSelectElement* select = static_cast<HTMLSelectElement*>(element);
+        return select->valueMissing();
+    }
+    return false;
+}
+
+bool ValidityState::typeMismatch() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    if (!element->willValidate())
+        return false;
+
+    if (!element->hasTagName(inputTag))
+        return false;
+    return static_cast<HTMLInputElement*>(element)->typeMismatch();
+}
+
+bool ValidityState::patternMismatch() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    if (!element->willValidate())
+        return false;
+
+    if (!element->hasTagName(inputTag))
+        return false;
+    HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
+    return input->patternMismatch(input->value());
+}
+
+bool ValidityState::tooLong() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    if (!element->willValidate())
+        return false;
+
+    if (element->hasTagName(inputTag)) {
+        HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
+        return input->tooLong(input->value(), HTMLTextFormControlElement::CheckDirtyFlag);
+    }
+    if (element->hasTagName(textareaTag)) {
+        HTMLTextAreaElement* textArea = static_cast<HTMLTextAreaElement*>(element);
+        return textArea->tooLong(textArea->value(), HTMLTextFormControlElement::CheckDirtyFlag);
+    }
+    return false;
+}
+
+bool ValidityState::rangeUnderflow() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    if (!element->willValidate())
+        return false;
+
+    if (!element->hasTagName(inputTag))
+        return false;
+    HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
+    return input->rangeUnderflow(input->value());
+}
+
+bool ValidityState::rangeOverflow() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    if (!element->willValidate())
+        return false;
+
+    if (!element->hasTagName(inputTag))
+        return false;
+    HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
+    return input->rangeOverflow(input->value());
+}
+
+bool ValidityState::stepMismatch() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    if (!element->willValidate())
+        return false;
+
+    if (!element->hasTagName(inputTag))
+        return false;
+    HTMLInputElement* input = static_cast<HTMLInputElement*>(element);
+    return input->stepMismatch(input->value());
+}
+
+bool ValidityState::customError() const
+{
+    HTMLElement* element = toHTMLElement(m_control);
+    return element->willValidate() && !m_customErrorMessage.isEmpty();
+}
+
+bool ValidityState::valid() const
+{
+    bool someError = typeMismatch() || stepMismatch() || rangeUnderflow() || rangeOverflow()
+        || tooLong() || patternMismatch() || valueMissing() || customError();
+    return !someError;
+}
+
+} // namespace