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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/shell/renderer/test_runner/MockSpellCheck.h"
#include "content/shell/renderer/test_runner/TestCommon.h"
#include "third_party/WebKit/public/platform/WebCString.h"
using namespace blink;
using namespace std;
namespace WebTestRunner {
namespace {
void append(WebVector<WebString>* data, const WebString& item)
{
WebVector<WebString> result(data->size() + 1);
for (size_t i = 0; i < data->size(); ++i)
result[i] = (*data)[i];
result[data->size()] = item;
data->swap(result);
}
}
MockSpellCheck::MockSpellCheck()
: m_initialized(false) { }
MockSpellCheck::~MockSpellCheck() { }
bool MockSpellCheck::spellCheckWord(const WebString& text, int* misspelledOffset, int* misspelledLength)
{
BLINK_ASSERT(misspelledOffset);
BLINK_ASSERT(misspelledLength);
// Initialize this spellchecker.
initializeIfNeeded();
// Reset the result values as our spellchecker does.
*misspelledOffset = 0;
*misspelledLength = 0;
// Convert to a string16 because we store string16 instances in
// m_misspelledWords and WebString has no find().
string16 stringText = text;
int skippedLength = 0;
while (!stringText.empty()) {
// Extract the first possible English word from the given string.
// The given string may include non-ASCII characters or numbers. So, we
// should filter out such characters before start looking up our
// misspelled-word table.
// (This is a simple version of our SpellCheckWordIterator class.)
// If the given string doesn't include any ASCII characters, we can treat the
// string as valid one.
string16::iterator firstChar = find_if(stringText.begin(), stringText.end(), isASCIIAlpha);
if (firstChar == stringText.end())
return true;
int wordOffset = distance(stringText.begin(), firstChar);
int maxWordLength = static_cast<int>(stringText.length()) - wordOffset;
int wordLength;
string16 word;
// Look up our misspelled-word table to check if the extracted word is a
// known misspelled word, and return the offset and the length of the
// extracted word if this word is a known misspelled word.
// (See the comment in MockSpellCheck::initializeIfNeeded() why we use a
// misspelled-word table.)
for (size_t i = 0; i < m_misspelledWords.size(); ++i) {
wordLength = static_cast<int>(m_misspelledWords.at(i).length()) > maxWordLength ? maxWordLength : static_cast<int>(m_misspelledWords.at(i).length());
word = stringText.substr(wordOffset, wordLength);
if (word == m_misspelledWords.at(i) && (static_cast<int>(stringText.length()) == wordOffset + wordLength || isNotASCIIAlpha(stringText[wordOffset + wordLength]))) {
*misspelledOffset = wordOffset + skippedLength;
*misspelledLength = wordLength;
break;
}
}
if (*misspelledLength > 0)
break;
string16::iterator lastChar = find_if(stringText.begin() + wordOffset, stringText.end(), isNotASCIIAlpha);
if (lastChar == stringText.end())
wordLength = static_cast<int>(stringText.length()) - wordOffset;
else
wordLength = distance(firstChar, lastChar);
BLINK_ASSERT(0 < wordOffset + wordLength);
stringText = stringText.substr(wordOffset + wordLength);
skippedLength += wordOffset + wordLength;
}
return false;
}
bool MockSpellCheck::hasInCache(const WebString& word)
{
return word == WebString::fromUTF8("Spell wellcome. Is it broken?") || word == WebString::fromUTF8("Spell wellcome.\x007F");
}
bool MockSpellCheck::isMultiWordMisspelling(const WebString& text, vector<WebTextCheckingResult>* results)
{
if (text == WebString::fromUTF8("Helllo wordl.")) {
results->push_back(WebTextCheckingResult(WebTextDecorationTypeSpelling, 0, 6, WebString("Hello")));
results->push_back(WebTextCheckingResult(WebTextDecorationTypeSpelling, 7, 5, WebString("world")));
return true;
}
return false;
}
void MockSpellCheck::fillSuggestionList(const WebString& word, WebVector<WebString>* suggestions)
{
if (word == WebString::fromUTF8("wellcome"))
append(suggestions, WebString::fromUTF8("welcome"));
else if (word == WebString::fromUTF8("upper case"))
append(suggestions, WebString::fromUTF8("uppercase"));
else if (word == WebString::fromUTF8("Helllo"))
append(suggestions, WebString::fromUTF8("Hello"));
else if (word == WebString::fromUTF8("wordl"))
append(suggestions, WebString::fromUTF8("world"));
}
bool MockSpellCheck::initializeIfNeeded()
{
// Exit if we have already initialized this object.
if (m_initialized)
return false;
// Create a table that consists of misspelled words used in WebKit layout
// tests.
// Since WebKit layout tests don't have so many misspelled words as
// well-spelled words, it is easier to compare the given word with misspelled
// ones than to compare with well-spelled ones.
static const char* misspelledWords[] = {
// These words are known misspelled words in webkit tests.
// If there are other misspelled words in webkit tests, please add them in
// this array.
"foo",
"Foo",
"baz",
"fo",
"LibertyF",
"chello",
"xxxtestxxx",
"XXxxx",
"Textx",
"blockquoted",
"asd",
"Lorem",
"Nunc",
"Curabitur",
"eu",
"adlj",
"adaasj",
"sdklj",
"jlkds",
"jsaada",
"jlda",
"zz",
"contentEditable",
// The following words are used by unit tests.
"ifmmp",
"qwertyuiopasd",
"qwertyuiopasdf",
"upper case",
"wellcome"
};
m_misspelledWords.clear();
for (size_t i = 0; i < arraysize(misspelledWords); ++i)
m_misspelledWords.push_back(string16(misspelledWords[i], misspelledWords[i] + strlen(misspelledWords[i])));
// Mark as initialized to prevent this object from being initialized twice
// or more.
m_initialized = true;
// Since this MockSpellCheck class doesn't download dictionaries, this
// function always returns false.
return false;
}
}
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