mutter/src/frames.c

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/* Metacity window frame manager widget */
/*
* Copyright (C) 2001 Havoc Pennington
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "frames.h"
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struct _MetaFrame
{
Window xwindow;
GdkWindow *window;
PangoLayout *layout;
MetaFrameFlags flags;
/* w/h of frame window */
int width;
int height;
};
struct _MetaFrameProperties
{
/* Size of left/right/bottom sides */
int left_width;
int right_width;
int bottom_height;
/* Border of blue title region */
GtkBorder title_border;
/* Border inside title region, around title */
GtkBorder text_border;
/* padding on either side of spacer */
int spacer_padding;
/* Size of spacer */
int spacer_width;
int spacer_height;
/* indent of buttons from edges of frame */
int right_inset;
int left_inset;
/* Size of buttons */
int button_width;
int button_height;
/* Space around buttons */
GtkBorder button_border;
/* Space inside button which is clickable but doesn't draw the
* button icon
*/
GtkBorder inner_button_border;
};
typedef struct _MetaFrameGeometry MetaFrameGeometry;
struct _MetaFrameGeometry
{
int left_width;
int right_width;
int top_height;
int bottom_height;
MetaRectangle close_rect;
MetaRectangle max_rect;
MetaRectangle min_rect;
MetaRectangle spacer_rect;
MetaRectangle menu_rect;
MetaRectangle title_rect;
};
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static void meta_frames_class_init (MetaFramesClass *klass);
static void meta_frames_init (MetaFrames *frames);
static void meta_frames_destroy (GtkObject *object);
static void meta_frames_finalize (GObject *object);
static void meta_frames_style_set (GtkWidget *widget,
GtkStyle *prev_style);
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gboolean meta_frames_button_press_event (GtkWidget *widget,
GdkEventButton *event);
gboolean meta_frames_button_release_event (GtkWidget *widget,
GdkEventButton *event);
gboolean meta_frames_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event);
gboolean meta_frames_destroy_event (GtkWidget *widget,
GdkEventAny *event);
gboolean meta_frames_expose_event (GtkWidget *widget,
GdkEventExpose *event);
gboolean meta_frames_key_press_event (GtkWidget *widget,
GdkEventKey *event);
gboolean meta_frames_key_release_event (GtkWidget *widget,
GdkEventKey *event);
gboolean meta_frames_enter_notify_event (GtkWidget *widget,
GdkEventCrossing *event);
gboolean meta_frames_leave_notify_event (GtkWidget *widget,
GdkEventCrossing *event);
gboolean meta_frames_configure_event (GtkWidget *widget,
GdkEventConfigure *event);
gboolean meta_frames_focus_in_event (GtkWidget *widget,
GdkEventFocus *event);
gboolean meta_frames_focus_out_event (GtkWidget *widget,
GdkEventFocus *event);
gboolean meta_frames_map_event (GtkWidget *widget,
GdkEventAny *event);
gboolean meta_frames_unmap_event (GtkWidget *widget,
GdkEventAny *event);
gboolean meta_frames_property_notify_event (GtkWidget *widget,
GdkEventProperty *event);
gboolean meta_frames_client_event (GtkWidget *widget,
GdkEventClient *event);
gboolean meta_frames_window_state_event (GtkWidget *widget,
GdkEventWindowState *event);
static void meta_frames_calc_geometry (MetaFrames *frames,
MetaFrameGeometry *fgeom);
static MetaFrame* meta_frames_lookup_window (MetaFrames *frames,
Window xwindow);
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static GtkWidgetClass *parent_class = NULL;
static guint signals[LAST_SIGNAL];
GtkType
meta_frames_get_type (void)
{
static GtkType frames_type = 0;
if (!frames_type)
{
static const GtkTypeInfo frames_info =
{
"MetaFrames",
sizeof (MetaFrames),
sizeof (MetaFramesClass),
(GtkClassInitFunc) meta_frames_class_init,
(GtkObjectInitFunc) meta_frames_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
frames_type = gtk_type_unique (GTK_TYPE_WIDGET, &frames_info);
}
return frames_type;
}
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#define BORDER_PROPERTY (name, blurb, docs) \
gtk_widget_class_install_style_property (widget_class, \
g_param_spec_boxed (name, \
blurb, \
docs, \
GTK_TYPE_BORDER, \
G_PARAM_READABLE))
#define INT_PROPERTY (name, default, blurb, docs) \
gtk_widget_class_install_style_property (widget_class, \
g_param_spec_int (name, \
blurb, \
docs, \
0, \
G_MAXINT, \
default, \
G_PARAM_READABLE))
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static void
meta_frames_class_init (MetaFramesClass *class)
{
GObjectClass *gobject_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
gobject_class = G_OBJECT_CLASS (class);
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
parent_class = g_type_class_peek_parent (class);
gobject_class->finalize = meta_frames_finalize;
object_class->destroy = meta_frames_destroy;
widget_class->style_set = meta_frames_style_set;
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INT_PROPERTY ("left_width", 6, _("Left edge"), _("Left window edge width"));
INT_PROPERTY ("right_width", 6, _("Right edge"), _("Right window edge width"));
INT_PROPERTY ("bottom_height", 7, _("Bottom edge"), _("Bottom window edge height"));
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BORDER_PROPERTY ("title_border", _("Title border"), _("Border around title area"));
BORDER_PROPERTY ("text_border", _("Text border"), _("Border around window title text"));
INT_PROPERTY ("spacer_padding", 3, _("Spacer padding"), _("Padding on either side of spacer"));
INT_PROPERTY ("spacer_width", 2, _("Spacer width"), _("Width of spacer"));
INT_PROPERTY ("spacer_height", 10, _("Spacer height"), _("Height of spacer"));
/* same as right_width left_width by default */
INT_PROPERTY ("right_inset", 6, _("Right inset"), _("Distance of buttons from right edge of frame"));
INT_PROPERTY ("left_inset", 6, _("Left inset"), _("Distance of menu button from left edge of frame"));
INT_PROPERTY ("button_width", 14, _("Button width"), _("Width of buttons"));
INT_PROPERTY ("button_height", 14, _("Button height"), _("Height of buttons"));
BORDER_PROPERTY ("button_border", _("Button border"), _("Border around buttons"));
BORDER_PROPERTY ("inner_button_border", _("Inner button border"), _("Border around the icon inside buttons"));
}
static gint
unsigned_long_equal (gconstpointer v1,
gconstpointer v2)
{
return *((const gulong*) v1) == *((const gulong*) v2);
}
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static guint
unsigned_long_hash (gconstpointer v)
{
gulong val = * (const gulong *) v;
/* I'm not sure this works so well. */
#if G_SIZEOF_LONG > 4
return (guint) (val ^ (val >> 32));
#else
return val;
#endif
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}
static void
meta_frames_init (MetaFrames *frames)
{
GTK_WINDOW (frames)->type = GTK_WINDOW_POPUP;
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frames->props = g_new0 (MetaFrameProperties, 1);
frames->frames = g_hash_table_new (unsigned_long_hash, unsigned_long_equal);
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}
static void
meta_frames_destroy (GtkObject *object)
{
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GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
listify_func (gpointer key, gpointer value, gpointer data)
{
GSList **listp;
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listp = data;
*listp = g_slist_prepend (*listp, value);
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}
static void
meta_frames_finalize (GObject *object)
{
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MetaFrames *frames;
GSList *winlist;
GSList *tmp;
frames = META_FRAMES (object);
winlist = NULL;
g_hash_table_foreach (frames->frames,
listify_func,
&winlist);
/* Unmanage all frames */
tmp = winlist;
while (tmp != NULL)
{
MetaFrame *frame;
frame = tmp->data;
meta_frames_unmanage_window (frames, frame->xwindow);
tmp = tmp->next;
}
g_slist_free (winlist);
g_assert (g_hash_table_size (frames->frames) == 0);
g_hash_table_destroy (frames->frames);
g_free (frames->props);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
meta_frames_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
MetaFrames *frames;
/* left, right, top, bottom */
static GtkBorder default_title_border = { 3, 4, 4, 3 };
static GtkBorder default_text_border = { 2, 2, 2, 2 };
static GtkBorder default_button_border = { 1, 1, 1, 1 };
static GtkBorder default_inner_button_border = { 3, 3, 3, 3 };
GtkBorder *title_border;
GtkBorder *text_border;
GtkBorder *button_border;
GtkBorder *inner_button_border;
MetaFrameProperties props;
frames = META_FRAMES (widget);
gtk_widget_style_get (widget,
"left_width",
&props.left_width,
"right_width",
&props.right_width,
"bottom_height",
&props.bottom_height,
"title_border",
&title_border,
"text_border",
&text_border,
"spacer_padding",
&props.spacer_padding,
"spacer_width",
&props.spacer_width,
"spacer_height",
&props.spacer_height,
"right_inset",
&props.right_inset,
"left_inset",
&props.left_inset,
"button_width",
&props.button_width,
"button_height",
&props.button_height,
"button_border",
&button_border,
"inner_button_border",
&inner_button_border,
NULL);
if (title_border)
props.title_border = *title_border;
else
props.title_border = default_title_border;
g_free (title_border);
if (text_border)
props.text_border = *text_border;
else
props.text_border = default_text_border;
g_free (text_border);
if (button_border)
props.button_border = *button_border;
else
props.button_border = default_button_border;
g_free (button_border);
if (inner_button_border)
props.inner_button_border = *inner_button_border;
else
props.inner_button_border = default_inner_button_border;
g_free (inner_button_border);
*(frames->props) = props;
{
PangoFontMetrics metrics;
PangoFont *font;
gchar *lang;
font = pango_context_load_font (gtk_widget_get_pango_context (widget),
widget->style->font_desc);
lang = pango_context_get_lang (gtk_widget_get_pango_context (widget));
pango_font_get_metrics (font, lang, &metrics);
g_free (lang);
g_object_unref (G_OBJECT (font));
frames->text_height = metrics.ascent + metrics.descent;
}
}
static void
meta_frames_calc_geometry (MetaFrames *frames,
MetaFrame *frame,
MetaFrameGeometry *fgeom)
{
int x;
int button_y;
int title_right_edge;
gboolean shaded;
MetaFrameProperties props;
int buttons_height, title_height, spacer_height;
props = *(frames->props);
buttons_height = props.button_height +
props.button_border.top + props.button_border.bottom;
title_height = frames->text_height +
props.text_border.top + props.text_border.bottom +
props.title_border.top + props.title_border.bottom;
spacer_height = props.spacer_height;
fgeom->top_height = MAX (buttons_height, title_height);
fgeom->top_height = MAX (fgeom->top_height, spacer_height);
fgeom->left_width = props.left_width;
fgeom->right_width = props.right_width;
if (frame->flags & META_FRAME_SHADED)
fgeom->bottom_height = 0;
else
fgeom->bottom_height = props.bottom_height;
x = frame->width - fgeom->button_inset;
/* center buttons */
button_y = (fgeom->top_height -
(props.button_height + props.button_border.top + props.button_border.bottom)) / 2 + props.button_border.top;
if ((frame->flags & META_FRAME_ALLOWS_DELETE) &&
x >= 0)
{
fgeom->close_rect.x = x - props.button_border.right - props.button_width;
fgeom->close_rect.y = button_y;
fgeom->close_rect.width = props.button_width;
fgeom->close_rect.height = props.button_height;
x = fgeom->close_rect.x - props.button_border.left;
}
else
{
fgeom->close_rect.x = 0;
fgeom->close_rect.y = 0;
fgeom->close_rect.width = 0;
fgeom->close_rect.height = 0;
}
if ((frame->flags & META_FRAME_ALLOWS_MAXIMIZE) &&
x >= 0)
{
fgeom->max_rect.x = x - props.button_border.right - props.button_width;
fgeom->max_rect.y = button_y;
fgeom->max_rect.width = props.button_width;
fgeom->max_rect.height = props.button_height;
x = fgeom->max_rect.x - props.button_border.left;
}
else
{
fgeom->max_rect.x = 0;
fgeom->max_rect.y = 0;
fgeom->max_rect.width = 0;
fgeom->max_rect.height = 0;
}
if ((frame->flags & META_FRAME_ALLOWS_MINIMIZE) &&
x >= 0)
{
fgeom->min_rect.x = x - props.button_border.right - props.button_width;
fgeom->min_rect.y = button_y;
fgeom->min_rect.width = props.button_width;
fgeom->min_rect.height = props.button_height;
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x = fgeom->min_rect.x - props.button_border.left;
}
else
{
fgeom->min_rect.x = 0;
fgeom->min_rect.y = 0;
fgeom->min_rect.width = 0;
fgeom->min_rect.height = 0;
}
if ((fgeom->close_rect.width > 0 ||
fgeom->max_rect.width > 0 ||
fgeom->min_rect.width > 0) &&
x >= 0)
{
fgeom->spacer_rect.x = x - props.spacer_padding - props.spacer_width;
fgeom->spacer_rect.y = (fgeom->top_height - props.spacer_height) / 2;
fgeom->spacer_rect.width = props.spacer_width;
fgeom->spacer_rect.height = props.spacer_height;
x = fgeom->spacer_rect.x - props.spacer_padding;
}
else
{
fgeom->spacer_rect.x = 0;
fgeom->spacer_rect.y = 0;
fgeom->spacer_rect.width = 0;
fgeom->spacer_rect.height = 0;
}
title_right_edge = x - props.title_border.right;
/* Now x changes to be position from the left */
x = fgeom->left_inset;
if ((frame->flags & META_FRAME_ALLOWS_MENU) &&
x < title_right_edge)
{
fgeom->menu_rect.x = x + props.button_border.left;
fgeom->menu_rect.y = button_y;
fgeom->menu_rect.width = props.button_width;
fgeom->menu_rect.height = props.button_height;
x = fgeom->menu_rect.x + fgeom->menu_rect.width + props.button_border.right;
}
else
{
fgeom->menu_rect.x = 0;
fgeom->menu_rect.y = 0;
fgeom->menu_rect.width = 0;
fgeom->menu_rect.height = 0;
}
/* If menu overlaps close button, then the menu wins since it
* lets you perform any operation including close
*/
if (fgeom->close_rect.width > 0 &&
fgeom->close_rect.x < (fgeom->menu_rect.x + fgeom->menu_rect.height))
{
fgeom->close_rect.width = 0;
fgeom->close_rect.height = 0;
}
/* We always fill as much vertical space as possible with title rect,
* rather than centering it like the buttons and spacer
*/
fgeom->title_rect.x = x + props.title_border.left;
fgeom->title_rect.y = props.title_border.top;
fgeom->title_rect.width = title_right_edge - fgeom->title_rect.x;
fgeom->title_rect.height = frames->top_height - props.title_border.top - props.title_border.bottom;
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/* Nuke title if it won't fit */
if (fgeom->title_rect.width < 0 ||
fgeom->title_rect.height < 0)
{
fgeom->title_rect.width = 0;
fgeom->title_rect.height = 0;
}
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}
void
meta_frames_manage_window (MetaFrames *frames,
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Window xwindow)
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{
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MetaFrame *frame;
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g_return_if_fail (GDK_IS_WINDOW (window));
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frame = g_new (MetaFrame, 1);
gdk_error_trap_push ();
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frame->window = gdk_window_foreign_new (xwindow);
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if (frame->window == NULL)
{
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gdk_flush ();
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gdk_error_trap_pop ();
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g_free (frame);
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meta_ui_warning ("Frame 0x%lx disappeared as we managed it\n", xwindow);
return;
}
gdk_window_set_user_data (frame->window, frames);
gdk_window_set_events (frame->window,
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GDK_EXPOSURE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_STRUCTURE_MASK);
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gdk_drawable_get_size (GDK_DRAWABLE (frame->window),
&frame->width, &frame->height);
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/* This shouldn't be required if we don't select for button
* press in frame.c?
*/
XGrabButton (gdk_display, AnyButton, AnyModifier,
xwindow, False,
ButtonPressMask | ButtonReleaseMask |
PointerMotionMask | PointerMotionHintMask,
GrabModeAsync, GrabModeAsync,
False, None);
gdk_flush ();
if (gdk_error_trap_pop ())
{
g_object_unref (G_OBJECT (frame->window));
g_free (frame);
meta_ui_warning ("Errors managing frame 0x%lx\n", xwindow);
return;
}
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frame->xwindow = xwindow;
frame->layout = NULL;
frame->flags = 0;
g_hash_table_insert (frames->frames, &frame->xwindow);
}
void
meta_frames_unmanage_window (MetaFrames *frames,
Window xwindow)
{
MetaFrame *frame;
frame = g_hash_table_lookup (frames->frames, &xwindow);
if (frame)
{
g_hash_table_remove (frames->frames, &frame->xwindow);
g_object_unref (G_OBJECT (frame->window));
if (frame->layout)
g_object_unref (G_OBJECT (frame->layout));
g_free (frame);
}
else
meta_ui_warning ("Frame 0x%lx not managed, can't unmanage\n", xwindow);
}
static MetaFrame*
meta_frames_lookup_window (MetaFrames *frames,
Window xwindow)
{
MetaFrame *frame;
frame = g_hash_table_lookup (frames->frames, &xwindow);
return frame;
}
gboolean
meta_frames_button_press_event (GtkWidget *widget,
GdkEventButton *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_button_release_event (GtkWidget *widget,
GdkEventButton *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_motion_notify_event (GtkWidget *widget,
GdkEventMotion *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_destroy_event (GtkWidget *widget,
GdkEventAny *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_expose_event (GtkWidget *widget,
GdkEventExpose *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_key_press_event (GtkWidget *widget,
GdkEventKey *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_key_release_event (GtkWidget *widget,
GdkEventKey *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
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}
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gboolean
meta_frames_enter_notify_event (GtkWidget *widget,
GdkEventCrossing *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_leave_notify_event (GtkWidget *widget,
GdkEventCrossing *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_configure_event (GtkWidget *widget,
GdkEventConfigure *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_focus_in_event (GtkWidget *widget,
GdkEventFocus *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_focus_out_event (GtkWidget *widget,
GdkEventFocus *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_map_event (GtkWidget *widget,
GdkEventAny *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_unmap_event (GtkWidget *widget,
GdkEventAny *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_property_notify_event (GtkWidget *widget,
GdkEventProperty *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_client_event (GtkWidget *widget,
GdkEventClient *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
gboolean
meta_frames_window_state_event (GtkWidget *widget,
GdkEventWindowState *event)
{
MetaFrame *frame;
MetaFrames *frames;
frames = META_FRAMES (widget);
frame = meta_frames_lookup_window (frames, GDK_WINDOW_XID (event->window));
if (frame == NULL)
return FALSE;
return TRUE;
}
2001-06-12 00:38:24 -04:00