[spice-gtk 1/3] Send Zenkaku_Hankaku key in JP keyboard.

[Fabiano Fidêncio <fidencio@xxxxxxxxxx>]

From: Takao Fujiwara <tfujiwar@xxxxxxxxxx>

MapVirtualKey() returns the scancode of the released Zenkaku_Hankaku key
but does not pressed one and modifiered one. Any cases should be sent
to use input method engines.
---
 src/spice-widget-priv.h |  1 +
 src/spice-widget.c      | 37 +++++++++++++++++++++++++++++++++++--
 2 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/src/spice-widget-priv.h b/src/spice-widget-priv.h
index 95bca8a..05f6a90 100644
--- a/src/spice-widget-priv.h
+++ b/src/spice-widget-priv.h
@@ -119,6 +119,7 @@ struct _SpiceDisplayPrivate {
     HHOOK                   keyboard_hook;
     int                     win_mouse[3];
     int                     win_mouse_speed;
+    HKL                     keyboard_layout;
 #endif
     guint                   keypress_delay;
     gint                    zoom_level;
diff --git a/src/spice-widget.c b/src/spice-widget.c
index f605439..4e026f3 100644
--- a/src/spice-widget.c
+++ b/src/spice-widget.c
@@ -644,6 +644,9 @@ static void spice_display_init(SpiceDisplay *display)
     d->grabseq = spice_grab_sequence_new_from_string("Control_L+Alt_L");
     d->activeseq = g_new0(gboolean, d->grabseq->nkeysyms);
     d->mouse_cursor = get_blank_cursor();
+#ifdef G_OS_WIN32
+    d->keyboard_layout = GetKeyboardLayout(0);
+#endif
 }
 
 static GObject *
@@ -1418,6 +1421,7 @@ static gboolean key_event(GtkWidget *widget, GdkEventKey *key)
     SpiceDisplay *display = SPICE_DISPLAY(widget);
     SpiceDisplayPrivate *d = display->priv;
     int scancode;
+    int native_scancode;
 
 #ifdef G_OS_WIN32
     /* on windows, we ought to ignore the reserved key event? */
@@ -1464,9 +1468,38 @@ static gboolean key_event(GtkWidget *widget, GdkEventKey *key)
     scancode = vnc_display_keymap_gdk2xtkbd(d->keycode_map, d->keycode_maplen,
                                             key->hardware_keycode);
 #ifdef G_OS_WIN32
+    native_scancode = MapVirtualKey(key->hardware_keycode, MAPVK_VK_TO_VSC);
+
+    /* Some OEM virtual-key codes are missed in MapVirtualKey(). */
+    switch (HIWORD(d->keyboard_layout)) {
+    case 0x411:                         /* JP keyboard */
+        if (native_scancode == 0) {
+            switch (key->hardware_keycode) {
+            case VK_OEM_ENLW:           /* from Pressed Zenkaku_Hankaku */
+            case VK_KANJI:              /* from Alt + Zenkaku_Hankaku */
+                scancode = MapVirtualKey(VK_OEM_AUTO, MAPVK_VK_TO_VSC);
+                                        /* to Released Zenkaku_Hankaku */
+                goto got_scancode;
+            case VK_CAPITAL:            /* from Alt + Eisu_toggle */
+                scancode = MapVirtualKey(VK_OEM_ATTN, MAPVK_VK_TO_VSC);
+                                        /* to Eisu_toggle */
+                goto got_scancode;
+            case VK_OEM_BACKTAB:        /* from Alt + Hiragana_Katakana */
+                scancode = MapVirtualKey(VK_OEM_COPY, MAPVK_VK_TO_VSC);
+                                        /* to Hiragana_Katakana */
+                goto got_scancode;
+            default:;
+            }
+        }
+        break;
+    default:;
+    }
+
     /* MapVirtualKey doesn't return scancode with needed higher byte */
-    scancode = MapVirtualKey(key->hardware_keycode, MAPVK_VK_TO_VSC) |
-        (scancode & 0xff00);
+    scancode = native_scancode | (scancode & 0xff00);
+
+got_scancode:
+
 #endif
 
     switch (key->type) {
-- 
2.7.3

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