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/*
* Copyright (C) 2012 Samsung Electronics
* Copyright (C) 2012 Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ewk_text_checker.h"
#if ENABLE(SPELLCHECK)
#include "TextCheckerEnchant.h"
#include "WKAPICast.h"
#include "WKMutableArray.h"
#include "WKRetainPtr.h"
#include "WKString.h"
#include "WKTextChecker.h"
#include "WebPageProxy.h"
#include "WebString.h"
#include "ewk_settings.h"
#include "ewk_text_checker_private.h"
#include <Eina.h>
#include <wtf/OwnPtr.h>
#include <wtf/text/CString.h>
using namespace WebCore;
using namespace WebKit;
/**
* @brief Structure to store client callback functions.
*
* @internal
*/
struct ClientCallbacks {
Ewk_Text_Checker_Unique_Spell_Document_Tag_Get_Cb unique_spell_document_tag_get;
Ewk_Text_Checker_Unique_Spell_Document_Tag_Close_Cb unique_spell_document_tag_close;
Ewk_Text_Checker_String_Spelling_Check_Cb string_spelling_check;
Ewk_Text_Checker_Word_Guesses_Get_Cb word_guesses_get;
Ewk_Text_Checker_Word_Learn_Cb word_learn;
Ewk_Text_Checker_Word_Ignore_Cb word_ignore;
};
static inline TextCheckerEnchant* textCheckerEnchant()
{
static OwnPtr<TextCheckerEnchant> textCheckerEnchant = TextCheckerEnchant::create();
return textCheckerEnchant.get();
}
static inline ClientCallbacks& clientCallbacks()
{
DEFINE_STATIC_LOCAL(ClientCallbacks, clientCallbacks, ());
return clientCallbacks;
}
static bool isContinuousSpellCheckingEnabled(const void*)
{
return ewk_settings_continuous_spell_checking_enabled_get();
}
static void setContinuousSpellCheckingEnabled(bool enabled, const void*)
{
ewk_settings_continuous_spell_checking_enabled_set(enabled);
}
static uint64_t uniqueSpellDocumentTag(WKPageRef page, const void*)
{
if (clientCallbacks().unique_spell_document_tag_get)
return clientCallbacks().unique_spell_document_tag_get(toImpl(page)->viewWidget());
return 0;
}
static void closeSpellDocumentWithTag(uint64_t tag, const void*)
{
if (clientCallbacks().unique_spell_document_tag_close)
clientCallbacks().unique_spell_document_tag_close(tag);
}
static void checkSpellingOfString(uint64_t tag, WKStringRef text, int32_t* misspellingLocation, int32_t* misspellingLength, const void*)
{
if (clientCallbacks().string_spelling_check)
clientCallbacks().string_spelling_check(tag, toImpl(text)->string().utf8().data(), misspellingLocation, misspellingLength);
else
textCheckerEnchant()->checkSpellingOfString(toImpl(text)->string(), *misspellingLocation, *misspellingLength);
}
static WKArrayRef guessesForWord(uint64_t tag, WKStringRef word, const void*)
{
WKMutableArrayRef suggestionsForWord = WKMutableArrayCreate();
if (clientCallbacks().word_guesses_get) {
Eina_List* list = clientCallbacks().word_guesses_get(tag, toImpl(word)->string().utf8().data());
void* item;
EINA_LIST_FREE(list, item) {
WKRetainPtr<WKStringRef> suggestion(AdoptWK, WKStringCreateWithUTF8CString(static_cast<const char*>(item)));
WKArrayAppendItem(suggestionsForWord, suggestion.get());
free(item);
}
} else {
const Vector<String>& guesses = textCheckerEnchant()->getGuessesForWord(toImpl(word)->string());
size_t numberOfGuesses = guesses.size();
for (size_t i = 0; i < numberOfGuesses; ++i) {
WKRetainPtr<WKStringRef> suggestion(AdoptWK, WKStringCreateWithUTF8CString(guesses[i].utf8().data()));
WKArrayAppendItem(suggestionsForWord, suggestion.get());
}
}
return suggestionsForWord;
}
static void learnWord(uint64_t tag, WKStringRef word, const void*)
{
if (clientCallbacks().word_learn)
clientCallbacks().word_learn(tag, toImpl(word)->string().utf8().data());
else
textCheckerEnchant()->learnWord(toImpl(word)->string());
}
static void ignoreWord(uint64_t tag, WKStringRef word, const void*)
{
if (clientCallbacks().word_ignore)
clientCallbacks().word_ignore(tag, toImpl(word)->string().utf8().data());
else
textCheckerEnchant()->ignoreWord(toImpl(word)->string());
}
namespace Ewk_Text_Checker {
Vector<String> availableSpellCheckingLanguages()
{
return textCheckerEnchant()->availableSpellCheckingLanguages();
}
void updateSpellCheckingLanguages(const Vector<String>& languages)
{
textCheckerEnchant()->updateSpellCheckingLanguages(languages);
}
Vector<String> loadedSpellCheckingLanguages()
{
return textCheckerEnchant()->loadedSpellCheckingLanguages();
}
bool hasDictionary()
{
return textCheckerEnchant()->hasDictionary();
}
/**
* Initializes spellcheck feature.
*
* @internal
*
* The default spellcheck feature is based on Enchant library.
* Client may use own spellcheck implementation previously set
* through the callback functions.
*/
void initialize()
{
static bool didInitializeTextCheckerClient = false;
if (didInitializeTextCheckerClient)
return;
WKTextCheckerClient textCheckerClient = {
kWKTextCheckerClientCurrentVersion,
0, // clientInfo
0, // isContinuousSpellCheckingAllowed
isContinuousSpellCheckingEnabled,
setContinuousSpellCheckingEnabled,
0, // isGrammarCheckingEnabled
0, // setGrammarCheckingEnabled
uniqueSpellDocumentTag,
closeSpellDocumentWithTag,
checkSpellingOfString,
0, // checkGrammarOfString
0, // spellingUIIsShowing
0, // toggleSpellingUIIsShowing
0, // updateSpellingUIWithMisspelledWord
0, // updateSpellingUIWithGrammarString
guessesForWord,
learnWord,
ignoreWord
};
WKTextCheckerSetClient(&textCheckerClient);
didInitializeTextCheckerClient = true;
}
} // namespace Ewk_Text_Checker
#define EWK_TEXT_CHECKER_CALLBACK_SET(TYPE_NAME, NAME) \
void ewk_text_checker_##NAME##_cb_set(TYPE_NAME cb) \
{ \
clientCallbacks().NAME = cb; \
}
#else
// Defines an empty API to do not break build.
#define EWK_TEXT_CHECKER_CALLBACK_SET(TYPE_NAME, NAME) \
void ewk_text_checker_##NAME##_cb_set(TYPE_NAME) \
{ \
}
#endif // ENABLE(SPELLCHECK)
EWK_TEXT_CHECKER_CALLBACK_SET(Ewk_Text_Checker_Unique_Spell_Document_Tag_Get_Cb, unique_spell_document_tag_get)
EWK_TEXT_CHECKER_CALLBACK_SET(Ewk_Text_Checker_Unique_Spell_Document_Tag_Close_Cb, unique_spell_document_tag_close)
EWK_TEXT_CHECKER_CALLBACK_SET(Ewk_Text_Checker_String_Spelling_Check_Cb, string_spelling_check)
EWK_TEXT_CHECKER_CALLBACK_SET(Ewk_Text_Checker_Word_Guesses_Get_Cb, word_guesses_get)
EWK_TEXT_CHECKER_CALLBACK_SET(Ewk_Text_Checker_Word_Learn_Cb, word_learn)
EWK_TEXT_CHECKER_CALLBACK_SET(Ewk_Text_Checker_Word_Ignore_Cb, word_ignore)
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