Aegisub/libaegisub/osx/spellchecker.mm

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// Copyright (c) 2014, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// Aegisub Project http://www.aegisub.org/
#import <libaegisub/spellchecker.h>
#import <libaegisub/option_value.h>
#import <libaegisub/signal.h>
#import <AppKit/AppKit.h>
namespace {
std::vector<std::string> array_to_vector(NSArray *arr) {
std::vector<std::string> ret;
ret.reserve(arr.count);
for (NSString *str in arr)
ret.push_back(str.UTF8String);
return ret;
}
struct releaser {
void operator()(id obj) { [obj release]; };
};
template<typename T>
using objc_ptr = std::unique_ptr<T, releaser>;
class CocoaSpellChecker final : public agi::SpellChecker {
objc_ptr<NSString> language;
agi::signal::Connection lang_listener;
void OnLanguageChanged(agi::OptionValue const& opt) {
language.reset([[NSString alloc] initWithCString:opt.GetString().c_str()
encoding:NSUTF8StringEncoding]);
}
public:
CocoaSpellChecker(agi::OptionValue *opt)
: lang_listener(opt->Subscribe(&CocoaSpellChecker::OnLanguageChanged, this))
{
OnLanguageChanged(*opt);
}
std::vector<std::string> GetLanguageList() override {
return array_to_vector([[NSSpellChecker sharedSpellChecker] availableLanguages]);
}
bool CheckWord(std::string const& word) override {
auto str = [NSString stringWithUTF8String:word.c_str()];
auto range = [NSSpellChecker.sharedSpellChecker checkSpellingOfString:str
startingAt:0
language:language.get()
wrap:NO
inSpellDocumentWithTag:0
wordCount:nullptr];
return range.location == NSNotFound;
}
std::vector<std::string> GetSuggestions(std::string const& word) override {
auto str = [NSString stringWithUTF8String:word.c_str()];
auto range = [NSSpellChecker.sharedSpellChecker checkSpellingOfString:str
startingAt:0
language:language.get()
wrap:NO
inSpellDocumentWithTag:0
wordCount:nullptr];
return array_to_vector([NSSpellChecker.sharedSpellChecker guessesForWordRange:range
inString:str
language:language.get()
inSpellDocumentWithTag:0]);
}
bool CanAddWord(std::string const&) override {
return true;
}
bool CanRemoveWord(std::string const& str) override {
return [NSSpellChecker.sharedSpellChecker hasLearnedWord:[NSString stringWithUTF8String:str.c_str()]];
}
void AddWord(std::string const& word) override {
NSSpellChecker.sharedSpellChecker.language = language.get();
[NSSpellChecker.sharedSpellChecker learnWord:[NSString stringWithUTF8String:word.c_str()]];
}
void RemoveWord(std::string const& word) override {
NSSpellChecker.sharedSpellChecker.language = language.get();
[NSSpellChecker.sharedSpellChecker unlearnWord:[NSString stringWithUTF8String:word.c_str()]];
}
};
}
namespace agi {
std::unique_ptr<SpellChecker> CreateCocoaSpellChecker(OptionValue *opt) {
return std::unique_ptr<SpellChecker>(new CocoaSpellChecker(opt));
}
}