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5 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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17 : * The Original Code is mozilla.org code.
18 : *
19 : * The Initial Developer of the Original Code is Christopher Blizzard
20 : * <blizzard@mozilla.org>. Portions created by the Initial Developer
21 : * are Copyright (C) 2001 the Initial Developer. All Rights Reserved.
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23 : * Contributor(s):
24 : * Behnam Esfahbod <behnam@zwnj.org>
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39 :
40 : #include "prlink.h"
41 :
42 : #include "nsBidiKeyboard.h"
43 : #include <gtk/gtk.h>
44 :
45 :
46 : static PRLibrary *gtklib = nsnull;
47 :
48 : typedef gboolean (*GdkKeymapHaveBidiLayoutsType)(GdkKeymap *keymap);
49 : static GdkKeymapHaveBidiLayoutsType GdkKeymapHaveBidiLayouts = nsnull;
50 :
51 :
52 0 : NS_IMPL_ISUPPORTS1(nsBidiKeyboard, nsIBidiKeyboard)
53 :
54 0 : nsBidiKeyboard::nsBidiKeyboard()
55 : {
56 : #if defined(MOZ_X11)
57 0 : if (!gtklib)
58 0 : gtklib = PR_LoadLibrary("libgtk-x11-2.0.so.0");
59 : #else
60 : return;
61 : #endif
62 :
63 0 : if (gtklib && !GdkKeymapHaveBidiLayouts)
64 0 : GdkKeymapHaveBidiLayouts = (GdkKeymapHaveBidiLayoutsType) PR_FindFunctionSymbol(gtklib, "gdk_keymap_have_bidi_layouts");
65 :
66 0 : SetHaveBidiKeyboards();
67 0 : }
68 :
69 0 : nsBidiKeyboard::~nsBidiKeyboard()
70 : {
71 0 : if (gtklib) {
72 0 : PR_UnloadLibrary(gtklib);
73 0 : gtklib = nsnull;
74 :
75 0 : GdkKeymapHaveBidiLayouts = nsnull;
76 : }
77 0 : }
78 :
79 : NS_IMETHODIMP
80 0 : nsBidiKeyboard::IsLangRTL(bool *aIsRTL)
81 : {
82 0 : if (!mHaveBidiKeyboards)
83 0 : return NS_ERROR_FAILURE;
84 :
85 0 : *aIsRTL = (gdk_keymap_get_direction(NULL) == PANGO_DIRECTION_RTL);
86 :
87 0 : return NS_OK;
88 : }
89 :
90 : nsresult
91 0 : nsBidiKeyboard::SetHaveBidiKeyboards()
92 : {
93 0 : mHaveBidiKeyboards = false;
94 :
95 0 : if (!gtklib || !GdkKeymapHaveBidiLayouts)
96 0 : return NS_ERROR_FAILURE;
97 :
98 0 : mHaveBidiKeyboards = (*GdkKeymapHaveBidiLayouts)(NULL);
99 :
100 0 : return NS_OK;
101 : }
102 :
103 : NS_IMETHODIMP
104 0 : nsBidiKeyboard::SetLangFromBidiLevel(PRUint8 aLevel)
105 : {
106 : // XXX Insert platform specific code to set keyboard language
107 0 : return NS_ERROR_NOT_IMPLEMENTED;
108 : }
109 :
110 0 : NS_IMETHODIMP nsBidiKeyboard::GetHaveBidiKeyboards(bool* aResult)
111 : {
112 : // not implemented yet
113 0 : return NS_ERROR_NOT_IMPLEMENTED;
114 : }
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