gtk2/gtk/gtkimcontextquartz.c

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/*
* gtkimmodulequartz
* Copyright (C) 2011 Hiroyuki Yamamoto
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* $Id:$
*/
#include "config.h"
#include <string.h>
#include "gtk/gtkimcontextquartz.h"
#include "gtk/gtkintl.h"
#include "gtk/gtkimmoduleprivate.h"
#include "gdk/quartz/gdkquartz.h"
#include "gdk/quartz/GdkQuartzView.h"
#define GTK_IM_CONTEXT_TYPE_QUARTZ (type_quartz)
#define GTK_IM_CONTEXT_QUARTZ(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_IM_CONTEXT_TYPE_QUARTZ, GtkIMContextQuartz))
#define GTK_IM_CONTEXT_QUARTZ_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GTK_IM_CONTEXT_TYPE_QUARTZ, GtkIMContextQuartzClass))
typedef struct _GtkIMContextQuartz
{
GtkIMContext parent;
GtkIMContext *helper;
GdkSurface *client_surface;
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char *preedit_str;
unsigned int cursor_index;
unsigned int selected_len;
GdkRectangle *cursor_rect;
gboolean focused;
} GtkIMContextQuartz;
typedef struct _GtkIMContextQuartzClass
{
GtkIMContextClass parent_class;
} GtkIMContextQuartzClass;
G_DEFINE_TYPE_WITH_CODE (GtkIMContextQuartz, gtk_im_context_quartz, GTK_TYPE_IM_CONTEXT,
gtk_im_module_ensure_extension_point ();
g_io_extension_point_implement (GTK_IM_MODULE_EXTENSION_POINT_NAME,
g_define_type_id,
"quartz",
0))
static void
quartz_get_preedit_string (GtkIMContext *context,
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char **str,
PangoAttrList **attrs,
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int *cursor_pos)
{
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
GTK_NOTE (MISC, g_print ("quartz_get_preedit_string\n"));
if (str)
*str = qc->preedit_str ? g_strdup (qc->preedit_str) : g_strdup ("");
if (attrs)
{
*attrs = pango_attr_list_new ();
int len = g_utf8_strlen (*str, -1);
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char *ch = *str;
if (len > 0)
{
PangoAttribute *attr;
int i = 0;
for (;;)
{
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char *s = ch;
ch = g_utf8_next_char (ch);
if (i >= qc->cursor_index &&
i < qc->cursor_index + qc->selected_len)
attr = pango_attr_underline_new (PANGO_UNDERLINE_DOUBLE);
else
attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);
attr->start_index = s - *str;
if (!*ch)
attr->end_index = attr->start_index + strlen (s);
else
attr->end_index = ch - *str;
pango_attr_list_change (*attrs, attr);
if (!*ch)
break;
i++;
}
}
}
if (cursor_pos)
*cursor_pos = qc->cursor_index;
}
static gboolean
output_result (GtkIMContext *context,
GdkSurface *surface)
{
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
gboolean retval = FALSE;
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char *fixed_str, *marked_str;
fixed_str = g_strdup (g_object_get_data (G_OBJECT (surface), TIC_INSERT_TEXT));
marked_str = g_strdup (g_object_get_data (G_OBJECT (surface), TIC_MARKED_TEXT));
if (fixed_str)
{
GTK_NOTE (MISC, g_print ("tic-insert-text: %s\n", fixed_str));
g_free (qc->preedit_str);
qc->preedit_str = NULL;
g_object_set_data (G_OBJECT (surface), TIC_INSERT_TEXT, NULL);
g_signal_emit_by_name (context, "commit", fixed_str);
g_signal_emit_by_name (context, "preedit_changed");
unsigned int filtered =
GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (surface),
GIC_FILTER_KEY));
GTK_NOTE (MISC, g_print ("filtered, %d\n", filtered));
if (filtered)
retval = TRUE;
else
retval = FALSE;
}
if (marked_str)
{
GTK_NOTE (MISC, g_print ("tic-marked-text: %s\n", marked_str));
qc->cursor_index =
GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (surface),
TIC_SELECTED_POS));
qc->selected_len =
GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (surface),
TIC_SELECTED_LEN));
g_free (qc->preedit_str);
qc->preedit_str = g_strdup (marked_str);
g_object_set_data (G_OBJECT (surface), TIC_MARKED_TEXT, NULL);
g_signal_emit_by_name (context, "preedit_changed");
retval = TRUE;
}
if (!fixed_str && !marked_str)
{
if (qc->preedit_str && strlen (qc->preedit_str) > 0)
retval = TRUE;
}
g_free (fixed_str);
g_free (marked_str);
return retval;
}
static gboolean
quartz_filter_keypress (GtkIMContext *context,
GdkEvent *event)
{
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
gboolean retval;
NSView *nsview;
GdkSurface *surface;
GTK_NOTE (MISC, g_print ("quartz_filter_keypress\n"));
if (!GDK_IS_QUARTZ_SURFACE (qc->client_surface))
return FALSE;
nsview = gdk_quartz_surface_get_nsview (qc->client_surface);
surface = (GdkSurface *)[ (GdkQuartzView *)nsview gdkSurface];
GTK_NOTE (MISC, g_print ("client_surface: %p, win: %p, nsview: %p\n",
qc->client_surface, surface, nsview));
NSEvent *nsevent = gdk_quartz_event_get_nsevent ((GdkEvent *)event);
if (!nsevent)
{
if (event->hardware_keycode == 0 && event->keyval == 0xffffff)
/* update text input changes by mouse events */
return output_result (context, surface);
else
return gtk_im_context_filter_keypress (qc->helper, event);
}
if (event->type == GDK_KEY_RELEASE)
return FALSE;
if (event->hardware_keycode == 55) /* Command */
return FALSE;
NSEventType etype = [nsevent type];
if (etype == NSKeyDown)
{
g_object_set_data (G_OBJECT (surface), TIC_IN_KEY_DOWN,
GUINT_TO_POINTER (TRUE));
[nsview keyDown: nsevent];
}
/* JIS_Eisu || JIS_Kana */
if (event->hardware_keycode == 102 || event->hardware_keycode == 104)
return FALSE;
retval = output_result(context, surface);
g_object_set_data (G_OBJECT (surface), TIC_IN_KEY_DOWN,
GUINT_TO_POINTER (FALSE));
GTK_NOTE (MISC, g_print ("quartz_filter_keypress done\n"));
return retval;
}
static void
discard_preedit (GtkIMContext *context)
{
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
if (!qc->client_surface)
return;
if (!GDK_IS_QUARTZ_SURFACE (qc->client_surface))
return;
NSView *nsview = gdk_quartz_surface_get_nsview (qc->client_surface);
if (!nsview)
return;
/* reset any partial input for this NSView */
[(GdkQuartzView *)nsview unmarkText];
NSInputManager *currentInputManager = [NSInputManager currentInputManager];
[currentInputManager markedTextAbandoned:nsview];
if (qc->preedit_str && strlen (qc->preedit_str) > 0)
{
g_signal_emit_by_name (context, "commit", qc->preedit_str);
g_free (qc->preedit_str);
qc->preedit_str = NULL;
g_signal_emit_by_name (context, "preedit_changed");
}
}
static void
quartz_reset (GtkIMContext *context)
{
GTK_NOTE (MISC, g_print ("quartz_reset\n"));
discard_preedit (context);
}
static void
quartz_set_client_surface (GtkIMContext *context, GtkWidget *widget)
{
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
GTK_NOTE (MISC, g_print ("quartz_set_client_surface: %p\n", widget));
qc->client_surface = gtk_widget_get_parent_surface (widget);
}
static void
quartz_focus_in (GtkIMContext *context)
{
GTK_NOTE (MISC, g_print ("quartz_focus_in\n"));
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
qc->focused = TRUE;
}
static void
quartz_focus_out (GtkIMContext *context)
{
GTK_NOTE (MISC, g_print ("quartz_focus_out\n"));
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
qc->focused = FALSE;
/* Commit any partially built strings or it'll mess up other widgets in the window */
discard_preedit (context);
}
static void
quartz_set_cursor_location (GtkIMContext *context, GdkRectangle *area)
{
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (context);
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int x, y;
NSView *nsview;
GdkSurface *surface;
GTK_NOTE (MISC, g_print ("quartz_set_cursor_location\n"));
if (!qc->client_surface)
return;
if (!qc->focused)
return;
qc->cursor_rect->x = area->x;
qc->cursor_rect->y = area->y;
qc->cursor_rect->width = area->width;
qc->cursor_rect->height = area->height;
gdk_surface_get_origin (qc->client_surface, &x, &y);
qc->cursor_rect->x = area->x + x;
qc->cursor_rect->y = area->y + y;
if (!GDK_IS_QUARTZ_SURFACE (qc->client_surface))
return;
nsview = gdk_quartz_surface_get_nsview (qc->client_surface);
surface = (GdkSurface *)[ (GdkQuartzView*)nsview gdkSurface];
g_object_set_data (G_OBJECT (surface), GIC_CURSOR_RECT, qc->cursor_rect);
}
static void
quartz_set_use_preedit (GtkIMContext *context, gboolean use_preedit)
{
GTK_NOTE (MISC, g_print ("quartz_set_use_preedit: %d\n", use_preedit));
}
static void
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commit_cb (GtkIMContext *context, const char *str, GtkIMContextQuartz *qc)
{
g_signal_emit_by_name (qc, "commit", str);
}
static void
imquartz_finalize (GObject *obj)
{
GTK_NOTE (MISC, g_print ("imquartz_finalize\n"));
GtkIMContextQuartz *qc = GTK_IM_CONTEXT_QUARTZ (obj);
g_free (qc->preedit_str);
qc->preedit_str = NULL;
g_free (qc->cursor_rect);
qc->cursor_rect = NULL;
g_signal_handlers_disconnect_by_func (qc->helper, (gpointer)commit_cb, qc);
g_object_unref (qc->helper);
gtk_im_context_quartz_parent_class->finalize (obj);
}
static void
gtk_im_context_quartz_class_init (GtkIMContextQuartzClass *class)
{
GTK_NOTE (MISC, g_print ("gtk_im_context_quartz_class_init\n"));
GtkIMContextClass *klass = GTK_IM_CONTEXT_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
klass->get_preedit_string = quartz_get_preedit_string;
klass->filter_keypress = quartz_filter_keypress;
klass->reset = quartz_reset;
klass->set_client_widget = quartz_set_client_surface;
klass->focus_in = quartz_focus_in;
klass->focus_out = quartz_focus_out;
klass->set_cursor_location = quartz_set_cursor_location;
klass->set_use_preedit = quartz_set_use_preedit;
object_class->finalize = imquartz_finalize;
}
static void
gtk_im_context_quartz_init (GtkIMContextQuartz *qc)
{
GTK_NOTE (MISC, g_print ("gtk_im_context_quartz_init\n"));
qc->preedit_str = g_strdup ("");
qc->cursor_index = 0;
qc->selected_len = 0;
qc->cursor_rect = g_malloc (sizeof (GdkRectangle));
qc->focused = FALSE;
qc->helper = g_object_new (GTK_TYPE_IM_CONTEXT_SIMPLE, NULL);
g_signal_connect (G_OBJECT (qc->helper), "commit", G_CALLBACK (commit_cb), qc);
}