michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* vim:expandtab:shiftwidth=4:tabstop=4:
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "prlink.h"
michael@0: 
michael@0: #include "nsBidiKeyboard.h"
michael@0: #include <gtk/gtk.h>
michael@0: 
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0: typedef gboolean (*GdkKeymapHaveBidiLayoutsType)(GdkKeymap *keymap);
michael@0: static GdkKeymapHaveBidiLayoutsType GdkKeymapHaveBidiLayouts = nullptr;
michael@0: #endif
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsBidiKeyboard, nsIBidiKeyboard)
michael@0: 
michael@0: nsBidiKeyboard::nsBidiKeyboard()
michael@0: {
michael@0:     Reset();
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsBidiKeyboard::Reset()
michael@0: {
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0:     PRLibrary *gtklib = nullptr;
michael@0: #if defined(MOZ_X11)
michael@0:     if (!GdkKeymapHaveBidiLayouts) {
michael@0:         GdkKeymapHaveBidiLayouts = (GdkKeymapHaveBidiLayoutsType) 
michael@0:             PR_FindFunctionSymbolAndLibrary("gdk_keymap_have_bidi_layouts",
michael@0:                                             &gtklib);
michael@0:         if (gtklib)
michael@0:             PR_UnloadLibrary(gtklib);
michael@0:     }
michael@0: #endif
michael@0: 
michael@0:     mHaveBidiKeyboards = false;
michael@0:     if (GdkKeymapHaveBidiLayouts)
michael@0:         mHaveBidiKeyboards = (*GdkKeymapHaveBidiLayouts)(nullptr);
michael@0: #else
michael@0:     mHaveBidiKeyboards = gdk_keymap_have_bidi_layouts(gdk_keymap_get_default());
michael@0: #endif
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: nsBidiKeyboard::~nsBidiKeyboard()
michael@0: {
michael@0: #if (MOZ_WIDGET_GTK == 2)
michael@0:     GdkKeymapHaveBidiLayouts = nullptr;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsBidiKeyboard::IsLangRTL(bool *aIsRTL)
michael@0: {
michael@0:     if (!mHaveBidiKeyboards)
michael@0:         return NS_ERROR_FAILURE;
michael@0: 
michael@0:     *aIsRTL = (gdk_keymap_get_direction(gdk_keymap_get_default()) == PANGO_DIRECTION_RTL);
michael@0: 
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP nsBidiKeyboard::GetHaveBidiKeyboards(bool* aResult)
michael@0: {
michael@0:   // not implemented yet
michael@0:   return NS_ERROR_NOT_IMPLEMENTED;
michael@0: }