Only enable the Remove Word button when the word can be removed. Updates #1184.

aegisub/libaegisub/include/libaegisub/spellchecker.h

@@ -37,6 +37,11 @@ public:
 	/// @return Whether or not word can be added
 	virtual bool CanAddWord(std::string const& word)=0;
 
+	/// Can the word be removed from the current dictionary?
+	/// @param word Word to check
+	/// @return Whether or not word can be removed
+	virtual bool CanRemoveWord(std::string const& word)=0;
+
 	/// Check if the given word is spelled correctly
 	/// @param word Word to check
 	/// @return Whether or not the word is valid

aegisub/src/dialog_spellchecker.cpp

@@ -80,6 +80,10 @@ DialogSpellChecker::DialogSpellChecker(agi::Context *context)
 	current_word_sizer->Add(new wxStaticText(this, -1, _("Replace with:")), 0, wxALIGN_CENTER_VERTICAL);
 	current_word_sizer->Add(replace_word = new wxTextCtrl(this, -1, ""), wxSizerFlags(1).Expand());
 
+	replace_word->Bind(wxEVT_COMMAND_TEXT_UPDATED, [=](wxCommandEvent&) {
+		remove_button->Enable(spellchecker->CanRemoveWord(from_wx(replace_word->GetValue())));
+	});
+
 	// List of suggested corrections
 	suggest_list = new wxListBox(this, -1, wxDefaultPosition, wxSize(300, 150));
 	suggest_list->Bind(wxEVT_COMMAND_LISTBOX_SELECTED, &DialogSpellChecker::OnChangeSuggestion, this);
@@ -132,19 +136,32 @@ DialogSpellChecker::DialogSpellChecker(agi::Context *context)
 		button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, &DialogSpellChecker::OnReplace, this);
 
 		actions_sizer->Add(button = new wxButton(this, -1, _("Replace &all")), button_flags);
-		button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, &DialogSpellChecker::OnReplaceAll, this);
+		button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, [=](wxCommandEvent&) {
+			auto_replace[from_wx(orig_word->GetValue())] = from_wx(replace_word->GetValue());
+			Replace();
+			FindNext();
+		});
 
 		actions_sizer->Add(button = new wxButton(this, -1, _("&Ignore")), button_flags);
 		button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, [=](wxCommandEvent&) { FindNext(); });
 
 		actions_sizer->Add(button = new wxButton(this, -1, _("Ignore a&ll")), button_flags);
-		button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, &DialogSpellChecker::OnIgnoreAll, this);
+		button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, [=](wxCommandEvent&) {
+			auto_ignore.insert(from_wx(orig_word->GetValue()));
+			FindNext();
+		});
 
 		actions_sizer->Add(add_button = new wxButton(this, -1, _("Add to &dictionary")), button_flags);
-		add_button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, &DialogSpellChecker::OnAdd, this);
+		add_button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, [=](wxCommandEvent&) {
+			spellchecker->AddWord(from_wx(orig_word->GetValue()));
+			FindNext();
+		});
 
 		actions_sizer->Add(remove_button = new wxButton(this, -1, _("Remove fro&m dictionary")), button_flags);
-		remove_button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, &DialogSpellChecker::OnRemove, this);
+		remove_button->Bind(wxEVT_COMMAND_BUTTON_CLICKED, [=](wxCommandEvent&) {
+			spellchecker->RemoveWord(from_wx(replace_word->GetValue()));
+			SetWord(from_wx(orig_word->GetValue()));
+		});
 
 		actions_sizer->Add(new HelpButton(this, "Spell Checker"), button_flags);
 
@@ -166,30 +183,6 @@ void DialogSpellChecker::OnReplace(wxCommandEvent&) {
 	FindNext();
 }
 
-void DialogSpellChecker::OnReplaceAll(wxCommandEvent&) {
-	auto_replace[from_wx(orig_word->GetValue())] = from_wx(replace_word->GetValue());
-
-	Replace();
-	FindNext();
-}
-
-void DialogSpellChecker::OnIgnoreAll(wxCommandEvent&) {
-	auto_ignore.insert(from_wx(orig_word->GetValue()));
-	FindNext();
-}
-
-void DialogSpellChecker::OnAdd(wxCommandEvent&) {
-	spellchecker->AddWord(from_wx(orig_word->GetValue()));
-	FindNext();
-}
-
-void DialogSpellChecker::OnRemove(wxCommandEvent&) {
-	// TODO pop-up dialog
-
-	spellchecker->RemoveWord(from_wx(replace_word->GetValue()));
-	FindNext();
-}
-
 void DialogSpellChecker::OnChangeLanguage(wxCommandEvent&) {
 	wxString code = dictionary_lang_codes[language->GetSelection()];
 	OPT_SET("Tool/Spell Checker/Language")->SetString(STD_STR(code));

aegisub/src/dialog_spellchecker.h

@@ -85,10 +85,6 @@ class DialogSpellChecker : public wxDialog {
 	void OnChangeSuggestion(wxCommandEvent&);
 
 	void OnReplace(wxCommandEvent&);
-	void OnReplaceAll(wxCommandEvent&);
-	void OnIgnoreAll(wxCommandEvent&);
-	void OnAdd(wxCommandEvent&);
-	void OnRemove(wxCommandEvent&);
 
 public:
 	DialogSpellChecker(agi::Context *context);

aegisub/src/spellchecker_hunspell.cpp

@@ -63,25 +63,19 @@ bool HunspellSpellChecker::CanAddWord(std::string const& word) {
 	}
 }
 
+bool HunspellSpellChecker::CanRemoveWord(std::string const& word) {
+	return !!customWords.count(word);
+}
+
 void HunspellSpellChecker::AddWord(std::string const& word) {
 	if (!hunspell) return;
 
 	// Add it to the in-memory dictionary
 	hunspell->add(conv->Convert(word).c_str());
 
-	std::set<std::string> words;
-
-	try {
-		ReadUserDictionary(words);
-	}
-	catch (agi::FileNotFoundError&) {
-		LOG_I("dictionary/hunspell/add") << "User dictionary not found; creating it";
-	}
-
 	// Add the word
-	words.insert(word);
-
-	WriteUserDictionary(words);
+	if (customWords.insert(word).second)
+		WriteUserDictionary();
 }
 
 void HunspellSpellChecker::RemoveWord(std::string const& word) {
@@ -90,26 +84,17 @@ void HunspellSpellChecker::RemoveWord(std::string const& word) {
 	// Remove it from the in-memory dictionary
 	hunspell->remove(conv->Convert(word).c_str());
 
-	std::set<std::string> words;
+	auto word_iter = customWords.find(word);
+	if (word_iter != customWords.end()) {
+		customWords.erase(word_iter);
 
-	try {
-		ReadUserDictionary(words);
-	}
-	catch (agi::FileNotFoundError&) {
-		LOG_I("dictionary/hunspell/remove") << "User dictionary not found; nothing to remove";
-		return;
-	}
-
-	auto word_iter = words.find(word);
-	if (word_iter != words.end()) {
-		words.erase(word_iter);
-
-		WriteUserDictionary(words);
+		WriteUserDictionary();
 	}
 }
 
-void HunspellSpellChecker::ReadUserDictionary(std::set<std::string> &words)
-{
+void HunspellSpellChecker::ReadUserDictionary() {
+	customWords.clear();
+
 	// Ensure that the path exists
 	wxFileName fn(userDicPath);
 	if (!fn.DirExists()) {
@@ -118,21 +103,19 @@ void HunspellSpellChecker::ReadUserDictionary(std::set<std::string> &words)
 	// Read the old contents of the user's dictionary
 	else {
 		agi::scoped_ptr<std::istream> stream(agi::io::Open(STD_STR(userDicPath)));
-		remove_copy_if(
-			++agi::line_iterator<std::string>(*stream),
-			agi::line_iterator<std::string>(),
-			inserter(words, words.end()),
-			[](std::string const& str) { return str.empty(); });
+		copy_if(
+			++agi::line_iterator<std::string>(*stream), agi::line_iterator<std::string>(),
+			inserter(customWords, customWords.end()),
+			[](std::string const& str) { return !str.empty(); });
 	}
 }
 
-void HunspellSpellChecker::WriteUserDictionary(std::set<std::string> const& words)
-{
+void HunspellSpellChecker::WriteUserDictionary() {
 	// Write the new dictionary
 	{
 		agi::io::Save writer(STD_STR(userDicPath));
-		writer.Get() << words.size() << "\n";
-		copy(words.begin(), words.end(), std::ostream_iterator<std::string>(writer.Get(), "\n"));
+		writer.Get() << customWords.size() << "\n";
+		copy(customWords.begin(), customWords.end(), std::ostream_iterator<std::string>(writer.Get(), "\n"));
 	}
 
 	// Announce a language change so that any other spellcheckers reload the
@@ -252,25 +235,17 @@ void HunspellSpellChecker::OnLanguageChanged() {
 	conv.reset(new agi::charset::IconvWrapper("utf-8", hunspell->get_dic_encoding()));
 	rconv.reset(new agi::charset::IconvWrapper(hunspell->get_dic_encoding(), "utf-8"));
 
+	ReadUserDictionary();
+
+	for (auto const& word : customWords) {
 		try {
-		agi::scoped_ptr<std::istream> stream(agi::io::Open(STD_STR(userDicPath)));
-		agi::line_iterator<std::string> userDic(*stream);
-		agi::line_iterator<std::string> end;
-		++userDic; // skip entry count line
-		for (; userDic != end; ++userDic) {
-			if (userDic->empty()) continue;
-			try {
-				hunspell->add(conv->Convert(*userDic).c_str());
+			hunspell->add(conv->Convert(word).c_str());
 		}
 		catch (agi::charset::ConvError const&) {
 			// Normally this shouldn't happen, but some versions of Aegisub
 			// wrote words in the wrong charset
 		}
 	}
-	}
-	catch (agi::Exception const&) {
-		// File doesn't exist or we don't have permission to read it
-	}
 }
 
 void HunspellSpellChecker::OnPathChanged() {

aegisub/src/spellchecker_hunspell.h

@@ -26,6 +26,8 @@
 #include <libaegisub/scoped_ptr.h>
 #include <libaegisub/signal.h>
 
+#include <set>
+
 #include <wx/string.h>
 
 namespace agi { namespace charset { class IconvWrapper; } }
@@ -46,6 +48,9 @@ class HunspellSpellChecker : public agi::SpellChecker {
 	/// Path to user-local dictionary.
 	wxString userDicPath;
 
+	/// Words in the custom user dictionary
+	std::set<std::string> customWords;
+
 	/// Dictionary language change connection
 	agi::signal::Connection lang_listener;
 	/// Dictionary language change handler
@@ -57,9 +62,9 @@ class HunspellSpellChecker : public agi::SpellChecker {
 	void OnPathChanged();
 
 	/// Load words from custom dictionary
-	void ReadUserDictionary(std::set<std::string> &words);
+	void ReadUserDictionary();
 	/// Save words to custom dictionary
-	void WriteUserDictionary(std::set<std::string> const& words);
+	void WriteUserDictionary();
 
 public:
 	HunspellSpellChecker();
@@ -68,6 +73,7 @@ public:
 	void AddWord(std::string const& word);
 	void RemoveWord(std::string const& word);
 	bool CanAddWord(std::string const& word);
+	bool CanRemoveWord(std::string const& word);
 	bool CheckWord(std::string const& word);
 	std::vector<std::string> GetSuggestions(std::string const& word);
 	std::vector<std::string> GetLanguageList();