Remove IME handling code for Scintilla

The code was for wxCocoa, which is a dead implementation of wxWidgets. wxOSX/Cocoa does not need this hack anymore. And the code is causing linking errors due to using private structures in wxCocoa.

Revert fffb138

src/subs_edit_box.cpp

@@ -52,7 +52,6 @@
 #include "text_selection_controller.h"
 #include "timeedit_ctrl.h"
 #include "tooltip_manager.h"
-#include "utils.h"
 #include "validators.h"
 
 #include <libaegisub/character_count.h>
@@ -455,8 +454,7 @@ void SubsEditBox::UpdateFrameTiming(agi::vfr::Framerate const& fps) {
 }
 
 void SubsEditBox::OnKeyDown(wxKeyEvent &event) {
-	if (!osx::ime::process_key_event(edit_ctrl, event))
-		hotkey::check("Subtitle Edit Box", c, event);
+	hotkey::check("Subtitle Edit Box", c, event);
 }
 
 void SubsEditBox::OnChange(wxStyledTextEvent &event) {

src/subs_edit_ctrl.cpp

@@ -87,8 +87,6 @@ SubsTextEditCtrl::SubsTextEditCtrl(wxWindow* parent, wxSize wsize, long style, a
 , thesaurus(agi::make_unique<Thesaurus>())
 , context(context)
 {
-	osx::ime::inject(this);
-
 	// Set properties
 	SetWrapMode(wxSTC_WRAP_WORD);
 	SetMarginWidth(1,0);
@@ -209,7 +207,6 @@ void SubsTextEditCtrl::OnLoseFocus(wxFocusEvent &event) {
 }
 
 void SubsTextEditCtrl::OnKeyDown(wxKeyEvent &event) {
-	if (osx::ime::process_key_event(this, event)) return;
 	event.Skip();
 
 	// Workaround for wxSTC eating tabs.
@@ -335,7 +332,6 @@ void SubsTextEditCtrl::UpdateCallTip() {
 }
 
 void SubsTextEditCtrl::SetTextTo(std::string const& text) {
-	osx::ime::invalidate(this);
 	SetEvtHandlerEnabled(false);
 	Freeze();
 

src/utils.cpp

@@ -223,13 +223,6 @@ int RetinaHelper::GetScaleFactor() const {
 	return 1;
 #endif
 }
-
-// OS X implementation in scintilla_ime.mm
-namespace osx { namespace ime {
-	void inject(wxStyledTextCtrl *) { }
-	void invalidate(wxStyledTextCtrl *) { }
-	bool process_key_event(wxStyledTextCtrl *, wxKeyEvent&) { return false; }
-} }
 #endif
 
 wxString FontFace(std::string opt_prefix) {

src/utils.h

@@ -37,9 +37,7 @@
 #include <wx/bitmap.h>
 #include <wx/string.h>
 
-class wxKeyEvent;
 class wxMouseEvent;
-class wxStyledTextCtrl;
 class wxWindow;
 
 wxString PrettySize(int bytes);
@@ -99,20 +97,13 @@ agi::fs::path SaveFileSelector(wxString const& message, std::string const& optio
 
 wxString LocalizedLanguageName(wxString const& lang);
 
+#ifdef __WXOSX__
 namespace osx {
 	/// Make the given menu the OS X Window menu
 	void make_windows_menu(wxMenu *wxmenu);
 	/// Activate a top-level document window other than the given one
 	bool activate_top_window_other_than(wxFrame *wx);
 	// Bring all windows to the front, maintaining relative z-order
 	void bring_to_front();
-
-namespace ime {
-	/// Inject the IME helper into the given wxSTC
-	void inject(wxStyledTextCtrl *ctrl);
-	/// Invalidate any pending text from the IME
-	void invalidate(wxStyledTextCtrl *ctrl);
-	/// Give the IME a chance to process a key event and return whether it did
-	bool process_key_event(wxStyledTextCtrl *ctrl, wxKeyEvent &);
-}
 }
+#endif