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mutter-performance-source/src/ui/frames.c
Florian Müllner 9d4aa4488a frames: Add basic color-scheme support 
Use the dark variant for decorations if the color-scheme preference
indicates that it's preferred, and the client didn't explicitly
pick a variant via the _GTK_THEME_VARIANT hint.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2541>
2022-07-29 13:19:23 +00:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Metacity window frame manager widget */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2003 Red Hat, Inc.
* Copyright (C) 2005, 2006 Elijah Newren
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <cairo-xlib.h>
#include <math.h>
#include <string.h>
#include <gdesktop-enums.h>
#include "core/frame.h"
#include "core/window-private.h"
#include "meta/boxes.h"
#include "meta/prefs.h"
#include "meta/theme.h"
#include "meta/util.h"
#include "ui/ui.h"
#include "ui/frames.h"
#include "x11/meta-x11-window-control.h"
#include "x11/window-x11-private.h"
#include "x11/window-x11.h"
#define DEFAULT_INNER_BUTTON_BORDER 3
static void meta_frames_destroy (GtkWidget *object);
static void meta_frames_finalize (GObject *object);
static void meta_frames_style_updated (GtkWidget *widget);
static gboolean meta_frames_draw (GtkWidget *widget,
cairo_t *cr);
static void meta_ui_frame_attach_style (MetaUIFrame *frame);
static void meta_ui_frame_paint (MetaUIFrame *frame,
cairo_t *cr);
static void meta_ui_frame_calc_geometry (MetaUIFrame *frame,
MetaFrameGeometry *fgeom);
static void meta_ui_frame_update_prelit_control (MetaUIFrame *frame,
MetaFrameControl control);
static void meta_frames_font_changed (MetaFrames *frames);
static void meta_frames_button_layout_changed (MetaFrames *frames);
static void meta_frames_reattach_all_styles (MetaFrames *frames);
static GdkRectangle* control_rect (MetaFrameControl control,
MetaFrameGeometry *fgeom);
static MetaFrameControl get_control (MetaUIFrame *frame,
int x,
int y);
G_DEFINE_TYPE (MetaFrames, meta_frames, GTK_TYPE_WINDOW);
enum
{
META_ACTION_CLICK,
META_ACTION_RIGHT_CLICK,
META_ACTION_MIDDLE_CLICK,
META_ACTION_DOUBLE_CLICK,
META_ACTION_IGNORE
};
static GObject *
meta_frames_constructor (GType gtype,
guint n_properties,
GObjectConstructParam *properties)
{
GObject *object;
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (meta_frames_parent_class);
object = gobject_class->constructor (gtype, n_properties, properties);
g_object_set (object,
"type", GTK_WINDOW_POPUP,
NULL);
return object;
}
static void
meta_frames_class_init (MetaFramesClass *class)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
gobject_class = G_OBJECT_CLASS (class);
widget_class = (GtkWidgetClass*) class;
gobject_class->constructor = meta_frames_constructor;
gobject_class->finalize = meta_frames_finalize;
widget_class->destroy = meta_frames_destroy;
widget_class->style_updated = meta_frames_style_updated;
widget_class->draw = meta_frames_draw;
}
static gint
unsigned_long_equal (gconstpointer v1,
gconstpointer v2)
{
return *((const gulong*) v1) == *((const gulong*) v2);
}
static guint
unsigned_long_hash (gconstpointer v)
{
gulong val = * (const gulong *) v;
/* I'm not sure this works so well. */
#if GLIB_SIZEOF_LONG > 4
return (guint) (val ^ (val >> 32));
#else
return val;
#endif
}
static void
prefs_changed_callback (MetaPreference pref,
void *data)
{
switch (pref)
{
case META_PREF_TITLEBAR_FONT:
meta_frames_font_changed (META_FRAMES (data));
break;
case META_PREF_BUTTON_LAYOUT:
meta_frames_button_layout_changed (META_FRAMES (data));
break;
default:
break;
}
}
static void
invalidate_whole_window (MetaUIFrame *frame)
{
if (!frame->is_frozen)
{
meta_window_x11_freeze_commits (frame->meta_window);
frame->is_frozen = TRUE;
}
gdk_window_invalidate_rect (frame->window, NULL, FALSE);
}
static MetaStyleInfo *
meta_frames_get_theme_variant (MetaFrames *frames,
const gchar *variant)
{
MetaStyleInfo *style_info;
style_info = g_hash_table_lookup (frames->style_variants, variant);
if (style_info == NULL)
{
style_info = meta_theme_create_style_info (gtk_widget_get_screen (GTK_WIDGET (frames)), variant);
g_hash_table_insert (frames->style_variants, g_strdup (variant), style_info);
}
return style_info;
}
static void
update_style_contexts (MetaFrames *frames)
{
MetaStyleInfo *style_info;
GList *variants, *variant;
GdkScreen *screen;
screen = gtk_widget_get_screen (GTK_WIDGET (frames));
if (frames->normal_style)
meta_style_info_unref (frames->normal_style);
frames->normal_style = meta_theme_create_style_info (screen, NULL);
variants = g_hash_table_get_keys (frames->style_variants);
for (variant = variants; variant; variant = variant->next)
{
style_info = meta_theme_create_style_info (screen, (char *)variant->data);
g_hash_table_insert (frames->style_variants,
g_strdup (variant->data), style_info);
}
g_list_free (variants);
}
static void
meta_frames_init (MetaFrames *frames)
{
frames->interface_settings = g_settings_new ("org.gnome.desktop.interface");
g_signal_connect_swapped (frames->interface_settings,
"changed::color-scheme",
G_CALLBACK (meta_frames_reattach_all_styles),
frames);
frames->text_heights = g_hash_table_new (NULL, NULL);
frames->frames = g_hash_table_new (unsigned_long_hash, unsigned_long_equal);
frames->style_variants = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, (GDestroyNotify)meta_style_info_unref);
update_style_contexts (frames);
meta_prefs_add_listener (prefs_changed_callback, frames);
}
static void
listify_func (gpointer key, gpointer value, gpointer data)
{
GSList **listp;
listp = data;
*listp = g_slist_prepend (*listp, value);
}
static void
meta_frames_destroy (GtkWidget *object)
{
GSList *winlist;
GSList *tmp;
MetaFrames *frames;
frames = META_FRAMES (object);
winlist = NULL;
g_hash_table_foreach (frames->frames, listify_func, &winlist);
/* Unmanage all frames */
for (tmp = winlist; tmp != NULL; tmp = tmp->next)
{
MetaUIFrame *frame = tmp->data;
meta_ui_frame_unmanage (frame);
}
g_slist_free (winlist);
if (frames->normal_style)
{
meta_style_info_unref (frames->normal_style);
frames->normal_style = NULL;
}
if (frames->style_variants)
{
g_hash_table_destroy (frames->style_variants);
frames->style_variants = NULL;
}
g_clear_object (&frames->interface_settings);
GTK_WIDGET_CLASS (meta_frames_parent_class)->destroy (object);
}
static void
meta_frames_finalize (GObject *object)
{
MetaFrames *frames;
frames = META_FRAMES (object);
meta_prefs_remove_listener (prefs_changed_callback, frames);
g_hash_table_destroy (frames->text_heights);
g_assert (g_hash_table_size (frames->frames) == 0);
g_hash_table_destroy (frames->frames);
G_OBJECT_CLASS (meta_frames_parent_class)->finalize (object);
}
static void
queue_recalc_func (gpointer key,
gpointer value,
gpointer user_data)
{
MetaUIFrame *frame = value;
MetaFrames *frames = user_data;
invalidate_whole_window (frame);
meta_x11_wm_queue_frame_resize (frames->x11_display,
frame->xwindow);
g_clear_object (&frame->text_layout);
}
static void
meta_frames_font_changed (MetaFrames *frames)
{
if (g_hash_table_size (frames->text_heights) > 0)
{
g_hash_table_destroy (frames->text_heights);
frames->text_heights = g_hash_table_new (NULL, NULL);
}
/* Queue a draw/resize on all frames */
g_hash_table_foreach (frames->frames,
queue_recalc_func, frames);
}
static void
queue_draw_func (gpointer key, gpointer value, gpointer data)
{
MetaUIFrame *frame = value;
invalidate_whole_window (frame);
}
static void
meta_frames_button_layout_changed (MetaFrames *frames)
{
g_hash_table_foreach (frames->frames,
queue_draw_func, frames);
}
static void
reattach_style_func (gpointer key, gpointer value, gpointer data)
{
MetaUIFrame *frame = value;
meta_ui_frame_attach_style (frame);
}
static void
meta_frames_reattach_all_styles (MetaFrames *frames)
{
g_hash_table_foreach (frames->frames, reattach_style_func, NULL);
meta_display_queue_retheme_all_windows (meta_get_display ());
}
static void
meta_frames_style_updated (GtkWidget *widget)
{
MetaFrames *frames;
frames = META_FRAMES (widget);
meta_frames_font_changed (frames);
update_style_contexts (frames);
meta_frames_reattach_all_styles (frames);
GTK_WIDGET_CLASS (meta_frames_parent_class)->style_updated (widget);
}
static void
meta_ui_frame_ensure_layout (MetaUIFrame *frame,
MetaFrameType type)
{
MetaFrames *frames = frame->frames;
GtkWidget *widget;
MetaFrameLayout *layout;
widget = GTK_WIDGET (frames);
g_return_if_fail (gtk_widget_get_realized (widget));
layout = meta_theme_get_frame_layout (meta_theme_get_default (), type);
if (layout != frame->cache_layout)
g_clear_object (&frame->text_layout);
frame->cache_layout = layout;
if (frame->text_layout == NULL)
{
gpointer key, value;
PangoFontDescription *font_desc;
int size;
frame->text_layout = gtk_widget_create_pango_layout (widget, frame->title);
pango_layout_set_ellipsize (frame->text_layout, PANGO_ELLIPSIZE_END);
pango_layout_set_auto_dir (frame->text_layout, FALSE);
pango_layout_set_single_paragraph_mode (frame->text_layout, TRUE);
font_desc = meta_style_info_create_font_desc (frame->style_info);
meta_frame_layout_apply_scale (layout, font_desc);
size = pango_font_description_get_size (font_desc);
if (g_hash_table_lookup_extended (frames->text_heights,
GINT_TO_POINTER (size),
&key, &value))
{
frame->text_height = GPOINTER_TO_INT (value);
}
else
{
frame->text_height =
meta_pango_font_desc_get_text_height (font_desc,
gtk_widget_get_pango_context (widget));
g_hash_table_replace (frames->text_heights,
GINT_TO_POINTER (size),
GINT_TO_POINTER (frame->text_height));
}
pango_layout_set_font_description (frame->text_layout,
font_desc);
pango_font_description_free (font_desc);
}
}
static void
meta_ui_frame_calc_geometry (MetaUIFrame *frame,
MetaFrameGeometry *fgeom)
{
MetaFrameFlags flags;
MetaFrameType type;
MetaButtonLayout button_layout;
MetaWindowX11 *window_x11 = META_WINDOW_X11 (frame->meta_window);
MetaRectangle client_rect;
flags = meta_frame_get_flags (frame->meta_window->frame);
type = meta_window_get_frame_type (frame->meta_window);
meta_ui_frame_ensure_layout (frame, type);
meta_prefs_get_button_layout (&button_layout);
client_rect = meta_window_x11_get_client_rect (window_x11);
meta_theme_calc_geometry (meta_theme_get_default (),
frame->style_info,
type,
frame->text_height,
flags,
client_rect.width,
client_rect.height,
&button_layout,
fgeom);
}
MetaFrames*
meta_frames_new (MetaX11Display *x11_display)
{
MetaFrames *frames;
frames = g_object_new (META_TYPE_FRAMES,
"type", GTK_WINDOW_POPUP,
NULL);
frames->x11_display = x11_display;
/* Put the window at an arbitrary offscreen location; the one place
* it can't be is at -100x-100, since the meta_window_new() will
* mistake it for a window created via meta_create_offscreen_window()
* and ignore it, and we need this window to get frame-synchronization
* messages so that GTK+'s style change handling works.
*/
gtk_window_move (GTK_WINDOW (frames), -200, -200);
gtk_window_resize (GTK_WINDOW (frames), 1, 1);
return frames;
}
static const char *
get_global_theme_variant (MetaFrames *frames)
{
GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (frames));
GtkSettings *settings = gtk_settings_get_for_screen (screen);
gboolean dark_theme_requested;
g_object_get (settings,
"gtk-application-prefer-dark-theme", &dark_theme_requested,
NULL);
if (dark_theme_requested)
return "dark";
return NULL;
}
static const char *
get_color_scheme_variant (MetaFrames *frames)
{
int color_scheme = g_settings_get_enum (frames->interface_settings, "color-scheme");
if (color_scheme == G_DESKTOP_COLOR_SCHEME_PREFER_DARK)
return "dark";
return NULL;
}
/* In order to use a style with a window it has to be attached to that
* window. Actually, the colormaps just have to match, but since GTK+
* already takes care of making sure that its cheap to attach a style
* to multiple windows with the same colormap, we can just go ahead
* and attach separately for each window.
*/
static void
meta_ui_frame_attach_style (MetaUIFrame *frame)
{
MetaFrames *frames = frame->frames;
const char *variant;
if (frame->style_info != NULL)
meta_style_info_unref (frame->style_info);
variant = frame->meta_window->gtk_theme_variant;
if (variant == NULL)
variant = get_global_theme_variant (frame->frames);
if (variant == NULL)
variant = get_color_scheme_variant (frame->frames);
if (variant == NULL || *variant == '\0')
frame->style_info = meta_style_info_ref (frames->normal_style);
else
frame->style_info = meta_style_info_ref (meta_frames_get_theme_variant (frames,
variant));
}
MetaUIFrame *
meta_frames_manage_window (MetaFrames *frames,
MetaWindow *meta_window,
Window xwindow,
GdkWindow *window)
{
MetaUIFrame *frame;
g_assert (window);
frame = g_new (MetaUIFrame, 1);
frame->frames = frames;
frame->window = window;
gdk_window_set_user_data (frame->window, frames);
frame->style_info = NULL;
/* Don't set event mask here, it's in frame.c */
frame->xwindow = xwindow;
frame->meta_window = meta_window;
frame->cache_layout = NULL;
frame->text_layout = NULL;
frame->text_height = -1;
frame->title = NULL;
frame->prelit_control = META_FRAME_CONTROL_NONE;
frame->button_state = META_BUTTON_STATE_NORMAL;
frame->is_frozen = FALSE;
meta_x11_wm_grab_buttons (frames->x11_display, frame->xwindow);
g_hash_table_replace (frames->frames, &frame->xwindow, frame);
return frame;
}
void
meta_ui_frame_unmanage (MetaUIFrame *frame)
{
MetaFrames *frames = frame->frames;
/* restore the cursor */
meta_x11_wm_set_screen_cursor (frames->x11_display,
frame->xwindow,
META_CURSOR_DEFAULT);
gdk_window_set_user_data (frame->window, NULL);
g_hash_table_remove (frames->frames, &frame->xwindow);
meta_style_info_unref (frame->style_info);
gdk_window_destroy (frame->window);
if (frame->text_layout)
g_object_unref (G_OBJECT (frame->text_layout));
if (frame->is_frozen)
meta_window_x11_thaw_commits (frame->meta_window);
g_free (frame->title);
g_free (frame);
}
void
meta_ui_frame_get_borders (MetaUIFrame *frame,
MetaFrameBorders *borders)
{
MetaFrameFlags flags;
MetaFrameType type;
flags = meta_frame_get_flags (frame->meta_window->frame);
type = meta_window_get_frame_type (frame->meta_window);
g_return_if_fail (type < META_FRAME_TYPE_LAST);
meta_ui_frame_ensure_layout (frame, type);
/* We can't get the full geometry, because that depends on
* the client window size and probably we're being called
* by the core move/resize code to decide on the client
* window size
*/
meta_theme_get_frame_borders (meta_theme_get_default (),
frame->style_info,
type,
frame->text_height,
flags,
borders);
}
/* The visible frame rectangle surrounds the visible portion of the
* frame window; it subtracts only the invisible borders from the frame
* window's size.
*/
static void
get_visible_frame_rect (MetaFrameGeometry *fgeom,
cairo_rectangle_int_t *rect)
{
rect->x = fgeom->borders.invisible.left;
rect->y = fgeom->borders.invisible.top;
rect->width = fgeom->width - fgeom->borders.invisible.right - rect->x;
rect->height = fgeom->height - fgeom->borders.invisible.bottom - rect->y;
}
static cairo_region_t *
get_visible_region (MetaUIFrame *frame,
MetaFrameGeometry *fgeom)
{
cairo_region_t *corners_region;
cairo_region_t *visible_region;
cairo_rectangle_int_t rect;
cairo_rectangle_int_t frame_rect;
corners_region = cairo_region_create ();
get_visible_frame_rect (fgeom, &frame_rect);
if (fgeom->top_left_corner_rounded_radius != 0)
{
const int corner = fgeom->top_left_corner_rounded_radius;
const float radius = corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x;
rect.y = frame_rect.y + i;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
if (fgeom->top_right_corner_rounded_radius != 0)
{
const int corner = fgeom->top_right_corner_rounded_radius;
const float radius = corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x + frame_rect.width - width;
rect.y = frame_rect.y + i;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
if (fgeom->bottom_left_corner_rounded_radius != 0)
{
const int corner = fgeom->bottom_left_corner_rounded_radius;
const float radius = corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x;
rect.y = frame_rect.y + frame_rect.height - i - 1;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
if (fgeom->bottom_right_corner_rounded_radius != 0)
{
const int corner = fgeom->bottom_right_corner_rounded_radius;
const float radius = corner;
int i;
for (i=0; i<corner; i++)
{
const int width = floor(0.5 + radius - sqrt(radius*radius - (radius-(i+0.5))*(radius-(i+0.5))));
rect.x = frame_rect.x + frame_rect.width - width;
rect.y = frame_rect.y + frame_rect.height - i - 1;
rect.width = width;
rect.height = 1;
cairo_region_union_rectangle (corners_region, &rect);
}
}
visible_region = cairo_region_create_rectangle (&frame_rect);
cairo_region_subtract (visible_region, corners_region);
cairo_region_destroy (corners_region);
return visible_region;
}
cairo_region_t *
meta_ui_frame_get_bounds (MetaUIFrame *frame)
{
MetaFrameGeometry fgeom;
meta_ui_frame_calc_geometry (frame, &fgeom);
return get_visible_region (frame, &fgeom);
}
void
meta_ui_frame_move_resize (MetaUIFrame *frame,
int x, int y, int width, int height)
{
int old_width, old_height;
old_width = gdk_window_get_width (frame->window);
old_height = gdk_window_get_height (frame->window);
gdk_window_move_resize (frame->window, x, y, width, height);
if (old_width != width || old_height != height)
invalidate_whole_window (frame);
}
void
meta_ui_frame_queue_draw (MetaUIFrame *frame)
{
invalidate_whole_window (frame);
}
void
meta_ui_frame_set_title (MetaUIFrame *frame,
const char *title)
{
g_free (frame->title);
frame->title = g_strdup (title);
g_clear_object (&frame->text_layout);
invalidate_whole_window (frame);
}
void
meta_ui_frame_update_style (MetaUIFrame *frame)
{
meta_ui_frame_attach_style (frame);
invalidate_whole_window (frame);
}
static void
redraw_control (MetaUIFrame *frame,
MetaFrameControl control)
{
MetaFrameGeometry fgeom;
GdkRectangle *rect;
meta_ui_frame_calc_geometry (frame, &fgeom);
rect = control_rect (control, &fgeom);
gdk_window_invalidate_rect (frame->window, rect, FALSE);
}
static gboolean
meta_frame_titlebar_event (MetaUIFrame *frame,
const ClutterEvent *event,
int action)
{
MetaFrameFlags flags;
MetaX11Display *x11_display;
uint32_t evtime;
float x, y;
g_assert (event->type == CLUTTER_BUTTON_PRESS ||
event->type == CLUTTER_TOUCH_BEGIN);
x11_display = frame->frames->x11_display;
flags = meta_frame_get_flags (frame->meta_window->frame);
evtime = clutter_event_get_time (event);
clutter_event_get_coords (event, &x, &y);
switch (action)
{
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_SHADE:
{
if (flags & META_FRAME_ALLOWS_SHADE)
{
if (flags & META_FRAME_SHADED)
meta_window_unshade (frame->meta_window, evtime);
else
meta_window_shade (frame->meta_window, evtime);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_MAXIMIZE:
{
if (flags & META_FRAME_ALLOWS_MAXIMIZE)
{
meta_x11_wm_toggle_maximize (x11_display, frame->xwindow);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_MAXIMIZE_HORIZONTALLY:
{
if (flags & META_FRAME_ALLOWS_MAXIMIZE)
{
meta_x11_wm_toggle_maximize_horizontally (x11_display,
frame->xwindow);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_TOGGLE_MAXIMIZE_VERTICALLY:
{
if (flags & META_FRAME_ALLOWS_MAXIMIZE)
{
meta_x11_wm_toggle_maximize_vertically (x11_display, frame->xwindow);
}
}
break;
case G_DESKTOP_TITLEBAR_ACTION_MINIMIZE:
{
if (flags & META_FRAME_ALLOWS_MINIMIZE)
meta_window_minimize (frame->meta_window);
}
break;
case G_DESKTOP_TITLEBAR_ACTION_NONE:
/* Yaay, a sane user that doesn't use that other weird crap! */
break;
case G_DESKTOP_TITLEBAR_ACTION_LOWER:
meta_x11_wm_user_lower_and_unfocus (x11_display,
frame->xwindow,
evtime);
break;
case G_DESKTOP_TITLEBAR_ACTION_MENU:
meta_x11_wm_show_window_menu (x11_display,
frame->xwindow,
META_WINDOW_MENU_WM,
x, y, evtime);
break;
}
return TRUE;
}
static gboolean
meta_frame_double_click_event (MetaUIFrame *frame,
const ClutterEvent *event)
{
int action = meta_prefs_get_action_double_click_titlebar ();
return meta_frame_titlebar_event (frame, event, action);
}
static gboolean
meta_frame_middle_click_event (MetaUIFrame *frame,
ClutterButtonEvent *event)
{
int action = meta_prefs_get_action_middle_click_titlebar();
return meta_frame_titlebar_event (frame, (const ClutterEvent *) event,
action);
}
static gboolean
meta_frame_right_click_event (MetaUIFrame *frame,
ClutterButtonEvent *event)
{
int action = meta_prefs_get_action_right_click_titlebar();
return meta_frame_titlebar_event (frame, (const ClutterEvent *) event,
action);
}
static gboolean
meta_frames_try_grab_op (MetaUIFrame *frame,
MetaGrabOp op,
gdouble grab_x,
gdouble grab_y,
guint32 time)
{
MetaFrames *frames = frame->frames;
gboolean ret;
ret = meta_x11_wm_begin_grab_op (frames->x11_display,
frame->xwindow,
op,
FALSE,
TRUE,
frame->grab_button,
0,
time,
grab_x, grab_y);
if (!ret)
{
frames->current_grab_op = op;
frames->grab_frame = frame;
frames->grab_x = grab_x;
frames->grab_y = grab_y;
}
else
frames->grab_touch = NULL;
return ret;
}
static gboolean
meta_frames_retry_grab_op (MetaFrames *frames,
guint time)
{
MetaGrabOp op;
gboolean ret;
if (frames->current_grab_op == META_GRAB_OP_NONE)
return TRUE;
op = frames->current_grab_op;
frames->current_grab_op = META_GRAB_OP_NONE;
ret = meta_x11_wm_begin_grab_op (frames->x11_display,
frames->grab_frame->xwindow,
op,
FALSE,
TRUE,
frames->grab_frame->grab_button,
0,
time,
frames->grab_x,
frames->grab_y);
if (ret)
frames->grab_touch = NULL;
return ret;
}
static MetaGrabOp
grab_op_from_resize_control (MetaFrameControl control)
{
switch (control)
{
case META_FRAME_CONTROL_RESIZE_SE:
return META_GRAB_OP_RESIZING_SE;
case META_FRAME_CONTROL_RESIZE_S:
return META_GRAB_OP_RESIZING_S;
case META_FRAME_CONTROL_RESIZE_SW:
return META_GRAB_OP_RESIZING_SW;
case META_FRAME_CONTROL_RESIZE_NE:
return META_GRAB_OP_RESIZING_NE;
case META_FRAME_CONTROL_RESIZE_N:
return META_GRAB_OP_RESIZING_N;
case META_FRAME_CONTROL_RESIZE_NW:
return META_GRAB_OP_RESIZING_NW;
case META_FRAME_CONTROL_RESIZE_E:
return META_GRAB_OP_RESIZING_E;
case META_FRAME_CONTROL_RESIZE_W:
return META_GRAB_OP_RESIZING_W;
default:
g_assert_not_reached ();
return META_GRAB_OP_NONE;
}
}
static int
meta_ui_frame_update_click_count (MetaUIFrame *frame,
const ClutterEvent *event)
{
MetaFrames *frames = frame->frames;
ClutterSettings *settings;
int double_click_time, double_click_distance;
uint32_t evtime;
float x, y;
settings = clutter_settings_get_default ();
clutter_event_get_coords (event, &x, &y);
evtime = clutter_event_get_time (event);
g_object_get (settings,
"double-click-distance", &double_click_distance,
"double-click-time", &double_click_time,
NULL);
if (evtime > (frames->last_click_time + double_click_time) ||
(ABS (x - frames->last_click_x) > double_click_distance) ||
(ABS (y - frames->last_click_y) > double_click_distance))
frames->click_count = 0;
frames->last_click_time = evtime;
frames->last_click_x = x;
frames->last_click_y = y;
frames->click_count = (frames->click_count % 2) + 1;
return frames->click_count;
}
static guint
get_action (MetaUIFrame *frame,
const ClutterEvent *event)
{
if (event->type == CLUTTER_BUTTON_PRESS ||
event->type == CLUTTER_BUTTON_RELEASE)
{
switch (event->button.button)
{
case CLUTTER_BUTTON_PRIMARY:
if (meta_ui_frame_update_click_count (frame, event) == 2)
return META_ACTION_DOUBLE_CLICK;
else
return META_ACTION_CLICK;
case CLUTTER_BUTTON_SECONDARY:
return META_ACTION_RIGHT_CLICK;
case CLUTTER_BUTTON_MIDDLE:
return META_ACTION_MIDDLE_CLICK;
default:
meta_verbose ("No action triggered for button %u %s",
event->button.button,
(event->type == CLUTTER_BUTTON_PRESS) ? "press" : "release");
}
}
else if (event->type == CLUTTER_TOUCH_BEGIN ||
event->type == CLUTTER_TOUCH_UPDATE ||
event->type == CLUTTER_TOUCH_END)
{
return META_ACTION_CLICK;
}
return META_ACTION_IGNORE;
}
static uint32_t
get_button_number (const ClutterEvent *event)
{
if (event->type == CLUTTER_TOUCH_BEGIN ||
event->type == CLUTTER_TOUCH_UPDATE ||
event->type == CLUTTER_TOUCH_END)
return -1;
else if (event->type == CLUTTER_BUTTON_PRESS ||
event->type == CLUTTER_BUTTON_RELEASE)
return clutter_event_get_button (event);
g_assert_not_reached ();
return -1;
}
static gboolean
meta_frame_left_click_event (MetaUIFrame *frame,
const ClutterEvent *event)
{
MetaX11Display *x11_display = frame->frames->x11_display;
MetaFrameControl control;
guint32 evtime;
gfloat x, y;
evtime = clutter_event_get_time (event);
clutter_event_get_coords (event, &x, &y);
control = get_control (frame, x, y);
switch (control)
{
case META_FRAME_CONTROL_MAXIMIZE:
case META_FRAME_CONTROL_UNMAXIMIZE:
case META_FRAME_CONTROL_MINIMIZE:
case META_FRAME_CONTROL_DELETE:
case META_FRAME_CONTROL_MENU:
frame->grab_button = get_button_number (event);
frame->button_state = META_BUTTON_STATE_PRESSED;
frame->prelit_control = control;
redraw_control (frame, control);
if (control == META_FRAME_CONTROL_MENU)
{
MetaFrameGeometry fgeom;
GdkRectangle *rect;
MetaRectangle root_rect;
int win_x, win_y;
meta_ui_frame_calc_geometry (frame, &fgeom);
rect = control_rect (control, &fgeom);
gdk_window_get_position (frame->window, &win_x, &win_y);
root_rect.x = win_x + rect->x;
root_rect.y = win_y + rect->y;
root_rect.width = rect->width;
root_rect.height = rect->height;
/* if the compositor takes a grab for showing the menu, we will
* get a LeaveNotify event we want to ignore, to keep the pressed
* button state while the menu is open
*/
frame->maybe_ignore_leave_notify = TRUE;
meta_x11_wm_show_window_menu_for_rect (x11_display,
frame->xwindow,
META_WINDOW_MENU_WM,
&root_rect,
evtime);
}
else
{
meta_frames_try_grab_op (frame, META_GRAB_OP_FRAME_BUTTON,
x, y, evtime);
}
return TRUE;
case META_FRAME_CONTROL_RESIZE_SE:
case META_FRAME_CONTROL_RESIZE_S:
case META_FRAME_CONTROL_RESIZE_SW:
case META_FRAME_CONTROL_RESIZE_NE:
case META_FRAME_CONTROL_RESIZE_N:
case META_FRAME_CONTROL_RESIZE_NW:
case META_FRAME_CONTROL_RESIZE_E:
case META_FRAME_CONTROL_RESIZE_W:
meta_frames_try_grab_op (frame,
grab_op_from_resize_control (control),
x, y, evtime);
return TRUE;
case META_FRAME_CONTROL_TITLE:
{
MetaFrameFlags flags = meta_frame_get_flags (frame->meta_window->frame);
if (flags & META_FRAME_ALLOWS_MOVE)
{
meta_frames_try_grab_op (frame,
META_GRAB_OP_MOVING,
x, y, evtime);
}
}
return TRUE;
case META_FRAME_CONTROL_NONE:
/* We can get this for example when trying to resize window
* that cannot be resized (e. g. it is maximized and the theme
* currently used has borders for maximized windows), see #751884 */
return FALSE;
case META_FRAME_CONTROL_CLIENT_AREA:
/* This can happen with broken gtk themes that have a larger shadow size
* in the unfocused state than in the focused one. Then when clicking
* below the titlebar area in the unfocused state would still be
* considered a click on the titlebar due to it being shifted down because
* of the shadow. This then causes the window to be focused before this
* function is called, which removes the shadow such that the same
* position is now considered to be on the client area */
return FALSE;
default:
g_assert_not_reached ();
return FALSE;
}
}
static gboolean
handle_press_event (MetaUIFrame *frame,
const ClutterEvent *event)
{
MetaFrameControl control;
uint32_t evtime, action;
float x, y;
g_assert (event->type == CLUTTER_BUTTON_PRESS ||
event->type == CLUTTER_TOUCH_BEGIN);
action = get_action (frame, event);
if (action == META_ACTION_IGNORE)
return FALSE;
evtime = clutter_event_get_time (event);
clutter_event_get_coords (event, &x, &y);
control = get_control (frame, x, y);
/* don't do the rest of this if on client area */
if (control == META_FRAME_CONTROL_CLIENT_AREA)
return FALSE; /* not on the frame, just passed through from client */
if (action == META_ACTION_CLICK &&
!(control == META_FRAME_CONTROL_MINIMIZE ||
control == META_FRAME_CONTROL_DELETE ||
control == META_FRAME_CONTROL_MAXIMIZE))
{
meta_topic (META_DEBUG_FOCUS,
"Focusing window with frame 0x%lx due to button 1 press",
frame->xwindow);
meta_window_focus (frame->meta_window, evtime);
}
/* We want to shade even if we have a GrabOp, since we'll have a move grab
* if we double click the titlebar.
*/
if (control == META_FRAME_CONTROL_TITLE &&
action == META_ACTION_DOUBLE_CLICK)
{
meta_x11_wm_end_grab_op (frame->frames->x11_display, evtime);
return meta_frame_double_click_event (frame, event);
}
if (meta_x11_wm_get_grab_op (frame->frames->x11_display) != META_GRAB_OP_NONE)
return FALSE; /* already up to something */
frame->grab_button = get_button_number (event);
switch (action)
{
case META_ACTION_CLICK:
return meta_frame_left_click_event (frame, event);
case META_ACTION_MIDDLE_CLICK:
return meta_frame_middle_click_event (frame, (ClutterButtonEvent *) event);
case META_ACTION_RIGHT_CLICK:
return meta_frame_right_click_event (frame, (ClutterButtonEvent *) event);
default:
return FALSE;
}
}
static gboolean
handle_release_event (MetaUIFrame *frame,
const ClutterEvent *event)
{
guint32 evtime, button;
gfloat x, y;
g_assert (event->type == CLUTTER_BUTTON_RELEASE ||
event->type == CLUTTER_TOUCH_END);
evtime = clutter_event_get_time (event);
clutter_event_get_coords (event, &x, &y);
button = get_button_number (event);
frame->frames->current_grab_op = META_GRAB_OP_NONE;
meta_x11_wm_end_grab_op (frame->frames->x11_display, evtime);
/* We only handle the releases we handled the presses for (things
* involving frame controls). Window ops that don't require a
* frame are handled in the Xlib part of the code, display.c/window.c
*/
if (((int) button) == frame->grab_button &&
frame->button_state == META_BUTTON_STATE_PRESSED)
{
switch (frame->prelit_control)
{
case META_FRAME_CONTROL_MINIMIZE:
meta_window_minimize (frame->meta_window);
break;
case META_FRAME_CONTROL_MAXIMIZE:
/* Focus the window on the maximize */
meta_window_focus (frame->meta_window, evtime);
if (meta_prefs_get_raise_on_click ())
meta_window_raise (frame->meta_window);
meta_window_maximize (frame->meta_window, META_MAXIMIZE_BOTH);
break;
case META_FRAME_CONTROL_UNMAXIMIZE:
if (meta_prefs_get_raise_on_click ())
meta_window_raise (frame->meta_window);
meta_window_unmaximize (frame->meta_window, META_MAXIMIZE_BOTH);
break;
case META_FRAME_CONTROL_DELETE:
meta_window_delete (frame->meta_window, evtime);
break;
default:
break;
}
/* Update the prelit control regardless of what button the mouse
* was released over; needed so that the new button can become
* prelit so to let the user know that it can now be pressed.
* :)
*/
MetaFrameControl control = get_control (frame, x, y);
meta_ui_frame_update_prelit_control (frame, control);
}
return TRUE;
}
static void
meta_ui_frame_update_prelit_control (MetaUIFrame *frame,
MetaFrameControl control)
{
MetaFrameControl old_control;
MetaCursor cursor;
meta_verbose ("Updating prelit control from %u to %u",
frame->prelit_control, control);
cursor = META_CURSOR_DEFAULT;
switch (control)
{
case META_FRAME_CONTROL_CLIENT_AREA:
break;
case META_FRAME_CONTROL_NONE:
break;
case META_FRAME_CONTROL_TITLE:
break;
case META_FRAME_CONTROL_DELETE:
break;
case META_FRAME_CONTROL_MENU:
break;
case META_FRAME_CONTROL_MINIMIZE:
break;
case META_FRAME_CONTROL_MAXIMIZE:
break;
case META_FRAME_CONTROL_UNMAXIMIZE:
break;
case META_FRAME_CONTROL_RESIZE_SE:
cursor = META_CURSOR_SE_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_S:
cursor = META_CURSOR_SOUTH_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_SW:
cursor = META_CURSOR_SW_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_N:
cursor = META_CURSOR_NORTH_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_NE:
cursor = META_CURSOR_NE_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_NW:
cursor = META_CURSOR_NW_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_W:
cursor = META_CURSOR_WEST_RESIZE;
break;
case META_FRAME_CONTROL_RESIZE_E:
cursor = META_CURSOR_EAST_RESIZE;
break;
}
/* set/unset the prelight cursor */
meta_x11_wm_set_screen_cursor (frame->frames->x11_display,
frame->xwindow,
cursor);
switch (control)
{
case META_FRAME_CONTROL_MENU:
case META_FRAME_CONTROL_MINIMIZE:
case META_FRAME_CONTROL_MAXIMIZE:
case META_FRAME_CONTROL_DELETE:
case META_FRAME_CONTROL_UNMAXIMIZE:
/* leave control set */
break;
default:
/* Only prelight buttons */
control = META_FRAME_CONTROL_NONE;
break;
}
if (control == frame->prelit_control &&
frame->button_state == META_BUTTON_STATE_PRELIGHT)
return;
/* Save the old control so we can unprelight it */
old_control = frame->prelit_control;
frame->button_state = META_BUTTON_STATE_PRELIGHT;
frame->prelit_control = control;
redraw_control (frame, old_control);
redraw_control (frame, control);
}
static gboolean
handle_motion_event (MetaUIFrame *frame,
const ClutterEvent *event)
{
MetaFrames *frames = frame->frames;
MetaFrameControl control;
ClutterModifierType modifiers;
guint32 evtime;
gfloat x, y;
g_assert (event->type == CLUTTER_MOTION ||
event->type == CLUTTER_TOUCH_UPDATE);
modifiers = clutter_event_get_state (event);
evtime = clutter_event_get_time (event);
clutter_event_get_coords (event, &x, &y);
control = get_control (frame, x, y);
if (frame->button_state == META_BUTTON_STATE_PRESSED)
{
/* If the user leaves the frame button, set the state
* back to normal and redraw. */
if (frame->prelit_control != control)
{
frame->button_state = META_BUTTON_STATE_NORMAL;
redraw_control (frame, frame->prelit_control);
}
}
else
{
/* Update prelit control and cursor */
meta_ui_frame_update_prelit_control (frame, control);
}
if (frames->current_grab_op != META_GRAB_OP_NONE &&
(event->type == CLUTTER_TOUCH_UPDATE ||
(event->type == CLUTTER_MOTION &&
(modifiers & CLUTTER_BUTTON1_MASK))))
meta_frames_retry_grab_op (frames, evtime);
return TRUE;
}
static cairo_region_t *
get_visible_frame_border_region (MetaUIFrame *frame)
{
cairo_rectangle_int_t area;
cairo_region_t *frame_border;
MetaFrameFlags flags;
MetaFrameType type;
MetaFrameBorders borders;
MetaRectangle buffer_rect = frame->meta_window->buffer_rect;
flags = meta_frame_get_flags (frame->meta_window->frame);
type = meta_window_get_frame_type (frame->meta_window);
meta_theme_get_frame_borders (meta_theme_get_default (), frame->style_info,
type, frame->text_height, flags,
&borders);
/* Frame rect */
area.x = 0;
area.y = 0;
area.width = buffer_rect.width;
area.height = buffer_rect.height;
frame_border = cairo_region_create_rectangle (&area);
/* Client rect */
area.x += borders.total.left;
area.y += borders.total.top;
area.width -= borders.total.left + borders.total.right;
area.height -= borders.total.top + borders.total.bottom;
/* Visible frame border */
cairo_region_subtract_rectangle (frame_border, &area);
return frame_border;
}
/*
* Draw the opaque and semi-opaque pixels of this frame into a mask.
*
* (0,0) in Cairo coordinates is assumed to be the top left corner of the
* invisible border.
*
* The parts of @cr's surface in the clip region are assumed to be
* initialized to fully-transparent, and the clip region is assumed to
* contain the invisible border and the visible parts of the frame, but
* not the client area.
*
* This function uses @cr to draw pixels of arbitrary color (it will
* typically be drawing in a %CAIRO_FORMAT_A8 surface, so the color is
* discarded anyway) with appropriate alpha values to reproduce this
* frame's alpha channel, as a mask to be applied to an opaque pixmap.
*
* @frame: This frame
* @frame_rect: The frame rect
* @cr: Used to draw the resulting mask
*/
void
meta_ui_frame_get_mask (MetaUIFrame *frame,
cairo_rectangle_int_t *frame_rect,
cairo_t *cr)
{
MetaFrameBorders borders;
MetaFrameFlags flags;
cairo_surface_t *surface;
double xscale, yscale;
int scale;
flags = meta_frame_get_flags (frame->meta_window->frame);
meta_style_info_set_flags (frame->style_info, flags);
meta_ui_frame_get_borders (frame, &borders);
/* See comment in meta_frame_layout_draw_with_style() for details on HiDPI handling */
scale = meta_theme_get_window_scaling_factor ();
surface = cairo_get_target (cr);
cairo_surface_get_device_scale (surface, &xscale, &yscale);
cairo_surface_set_device_scale (surface, scale, scale);
gtk_render_background (frame->style_info->styles[META_STYLE_ELEMENT_FRAME], cr,
borders.invisible.left / scale,
borders.invisible.top / scale,
frame_rect->width / scale, frame_rect->height / scale);
gtk_render_background (frame->style_info->styles[META_STYLE_ELEMENT_TITLEBAR], cr,
borders.invisible.left / scale,
borders.invisible.top / scale,
frame_rect->width / scale, borders.total.top / scale);
cairo_surface_set_device_scale (surface, xscale, yscale);
}
/* XXX -- this is disgusting. Find a better approach here.
* Use multiple widgets? */
static MetaUIFrame *
find_frame_to_draw (MetaFrames *frames,
cairo_t *cr)
{
GHashTableIter iter;
MetaUIFrame *frame;
g_hash_table_iter_init (&iter, frames->frames);
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &frame))
if (gtk_cairo_should_draw_window (cr, frame->window))
return frame;
return NULL;
}
static gboolean
meta_frames_draw (GtkWidget *widget,
cairo_t *cr)
{
MetaUIFrame *frame;
MetaFrames *frames;
cairo_region_t *region;
frames = META_FRAMES (widget);
frame = find_frame_to_draw (frames, cr);
if (frame == NULL)
return FALSE;
region = get_visible_frame_border_region (frame);
gdk_cairo_region (cr, region);
cairo_clip (cr);
/* The target may be cleared to black or transparent, depending
* on the frame's visual; we don't want decorations to appear
* differently when the theme's decorations aren't fully opaque,
* so clear to black first
*/
cairo_paint (cr);
meta_ui_frame_paint (frame, cr);
cairo_region_destroy (region);
return TRUE;
}
static void
meta_ui_frame_paint (MetaUIFrame *frame,
cairo_t *cr)
{
MetaFrameFlags flags;
MetaFrameType type;
cairo_surface_t *mini_icon;
MetaButtonState button_states[META_BUTTON_TYPE_LAST];
int i;
int button_type = -1;
MetaButtonLayout button_layout;
MetaWindowX11 *window_x11 = META_WINDOW_X11 (frame->meta_window);
MetaRectangle client_rect;
for (i = 0; i < META_BUTTON_TYPE_LAST; i++)
button_states[i] = META_BUTTON_STATE_NORMAL;
/* Set prelight state */
switch (frame->prelit_control)
{
case META_FRAME_CONTROL_MENU:
button_type = META_BUTTON_TYPE_MENU;
break;
case META_FRAME_CONTROL_MINIMIZE:
button_type = META_BUTTON_TYPE_MINIMIZE;
break;
case META_FRAME_CONTROL_MAXIMIZE:
button_type = META_BUTTON_TYPE_MAXIMIZE;
break;
case META_FRAME_CONTROL_UNMAXIMIZE:
button_type = META_BUTTON_TYPE_MAXIMIZE;
break;
case META_FRAME_CONTROL_DELETE:
button_type = META_BUTTON_TYPE_CLOSE;
break;
default:
break;
}
if (button_type > -1)
button_states[button_type] = frame->button_state;
mini_icon = meta_window_get_mini_icon (frame->meta_window);
flags = meta_frame_get_flags (frame->meta_window->frame);
type = meta_window_get_frame_type (frame->meta_window);
meta_ui_frame_ensure_layout (frame, type);
meta_prefs_get_button_layout (&button_layout);
client_rect = meta_window_x11_get_client_rect (window_x11);
meta_theme_draw_frame (meta_theme_get_default (),
frame->style_info,
cr,
type,
flags,
client_rect.width,
client_rect.height,
frame->text_layout,
frame->text_height,
&button_layout,
button_states,
mini_icon);
if (frame->is_frozen)
{
meta_window_x11_thaw_commits (frame->meta_window);
frame->is_frozen = FALSE;
}
}
static gboolean
handle_enter_notify_event (MetaUIFrame *frame,
ClutterCrossingEvent *event)
{
MetaFrameControl control;
frame->maybe_ignore_leave_notify = FALSE;
control = get_control (frame, event->x, event->y);
meta_ui_frame_update_prelit_control (frame, control);
return TRUE;
}
static gboolean
handle_leave_notify_event (MetaUIFrame *frame,
ClutterCrossingEvent *event)
{
/* ignore the first LeaveNotify event after opening a window menu
* if it is the result of a compositor grab
*/
frame->maybe_ignore_leave_notify = frame->maybe_ignore_leave_notify &&
(event->flags & CLUTTER_EVENT_FLAG_GRAB_NOTIFY) != 0;
if (frame->maybe_ignore_leave_notify)
return FALSE;
meta_ui_frame_update_prelit_control (frame, META_FRAME_CONTROL_NONE);
return TRUE;
}
gboolean
meta_ui_frame_handle_event (MetaUIFrame *frame,
const ClutterEvent *event)
{
if (event->type == CLUTTER_TOUCH_BEGIN ||
event->type == CLUTTER_TOUCH_UPDATE ||
event->type == CLUTTER_TOUCH_END)
{
ClutterEventSequence *sequence;
MetaFrames *frames = frame->frames;
/* In X11, mutter sets up passive touch grabs which basically
* means we handle those events twice (once through the passive
* grab, and then through XISelectEvents).
*
* Receiving touch events here means we are going through the
* former, but passive grabs are exclusively for gesture
* recognition purposes.
*
* We do actually want this to happen though the regular event
* selection paths to avoid breaking internal state, which means
* we will get pointer events, because we don't select for XI_Touch*.
*/
if (!meta_is_wayland_compositor ())
return FALSE;
sequence = clutter_event_get_event_sequence (event);
/* Lock onto a single touch */
if (frames->grab_touch && frames->grab_touch != sequence)
return FALSE;
if (event->type == CLUTTER_TOUCH_BEGIN)
frames->grab_touch = sequence;
else if (event->type == CLUTTER_TOUCH_END)
frames->grab_touch = NULL;
}
switch (event->any.type)
{
case CLUTTER_BUTTON_PRESS:
case CLUTTER_TOUCH_BEGIN:
return handle_press_event (frame, event);
case CLUTTER_BUTTON_RELEASE:
case CLUTTER_TOUCH_END:
return handle_release_event (frame, event);
case CLUTTER_MOTION:
case CLUTTER_TOUCH_UPDATE:
return handle_motion_event (frame, event);
case CLUTTER_ENTER:
return handle_enter_notify_event (frame, (ClutterCrossingEvent *) event);
case CLUTTER_LEAVE:
return handle_leave_notify_event (frame, (ClutterCrossingEvent *) event);
default:
return FALSE;
}
}
static GdkRectangle*
control_rect (MetaFrameControl control,
MetaFrameGeometry *fgeom)
{
GdkRectangle *rect;
rect = NULL;
switch (control)
{
case META_FRAME_CONTROL_TITLE:
rect = &fgeom->title_rect;
break;
case META_FRAME_CONTROL_DELETE:
rect = &fgeom->close_rect.visible;
break;
case META_FRAME_CONTROL_MENU:
rect = &fgeom->menu_rect.visible;
break;
case META_FRAME_CONTROL_MINIMIZE:
rect = &fgeom->min_rect.visible;
break;
case META_FRAME_CONTROL_MAXIMIZE:
case META_FRAME_CONTROL_UNMAXIMIZE:
rect = &fgeom->max_rect.visible;
break;
case META_FRAME_CONTROL_RESIZE_SE:
break;
case META_FRAME_CONTROL_RESIZE_S:
break;
case META_FRAME_CONTROL_RESIZE_SW:
break;
case META_FRAME_CONTROL_RESIZE_N:
break;
case META_FRAME_CONTROL_RESIZE_NE:
break;
case META_FRAME_CONTROL_RESIZE_NW:
break;
case META_FRAME_CONTROL_RESIZE_W:
break;
case META_FRAME_CONTROL_RESIZE_E:
break;
case META_FRAME_CONTROL_NONE:
break;
case META_FRAME_CONTROL_CLIENT_AREA:
break;
}
return rect;
}
#define TOP_RESIZE_HEIGHT 4
#define CORNER_SIZE_MULT 2
static MetaFrameControl
get_control (MetaUIFrame *frame, int root_x, int root_y)
{
MetaFrameGeometry fgeom;
MetaFrameFlags flags;
MetaFrameType type;
gboolean has_vert, has_horiz;
gboolean has_north_resize;
cairo_rectangle_int_t client;
int x, y;
int win_x, win_y;
if (meta_window_is_fullscreen (frame->meta_window))
return META_FRAME_CONTROL_CLIENT_AREA;
gdk_window_get_position (frame->window, &win_x, &win_y);
x = root_x - win_x;
y = root_y - win_y;
meta_window_get_client_area_rect (frame->meta_window, &client);
if (META_POINT_IN_RECT (x, y, client))
return META_FRAME_CONTROL_CLIENT_AREA;
meta_ui_frame_calc_geometry (frame, &fgeom);
if (META_POINT_IN_RECT (x, y, fgeom.close_rect.clickable))
return META_FRAME_CONTROL_DELETE;
if (META_POINT_IN_RECT (x, y, fgeom.min_rect.clickable))
return META_FRAME_CONTROL_MINIMIZE;
if (META_POINT_IN_RECT (x, y, fgeom.menu_rect.clickable))
return META_FRAME_CONTROL_MENU;
flags = meta_frame_get_flags (frame->meta_window->frame);
type = meta_window_get_frame_type (frame->meta_window);
has_north_resize = (type != META_FRAME_TYPE_ATTACHED);
has_vert = (flags & META_FRAME_ALLOWS_VERTICAL_RESIZE) != 0;
has_horiz = (flags & META_FRAME_ALLOWS_HORIZONTAL_RESIZE) != 0;
if (flags & META_FRAME_TILED_LEFT || flags & META_FRAME_TILED_RIGHT)
has_vert = has_horiz = FALSE;
if (META_POINT_IN_RECT (x, y, fgeom.title_rect))
{
if (has_vert && y <= TOP_RESIZE_HEIGHT && has_north_resize)
return META_FRAME_CONTROL_RESIZE_N;
else
return META_FRAME_CONTROL_TITLE;
}
if (META_POINT_IN_RECT (x, y, fgeom.max_rect.clickable))
{
if (flags & META_FRAME_MAXIMIZED)
return META_FRAME_CONTROL_UNMAXIMIZE;
else
return META_FRAME_CONTROL_MAXIMIZE;
}
/* South resize always has priority over north resize,
* in case of overlap.
*/
if (y >= (fgeom.height - fgeom.borders.total.bottom * CORNER_SIZE_MULT) &&
x >= (fgeom.width - fgeom.borders.total.right * CORNER_SIZE_MULT))
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_SE;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_S;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_E;
}
else if (y >= (fgeom.height - fgeom.borders.total.bottom * CORNER_SIZE_MULT) &&
x <= fgeom.borders.total.left * CORNER_SIZE_MULT)
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_SW;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_S;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_W;
}
else if (y < (fgeom.borders.invisible.top * CORNER_SIZE_MULT) &&
x <= (fgeom.borders.total.left * CORNER_SIZE_MULT) && has_north_resize)
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_NW;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_N;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_W;
}
else if (y < (fgeom.borders.invisible.top * CORNER_SIZE_MULT) &&
x >= (fgeom.width - fgeom.borders.total.right * CORNER_SIZE_MULT) && has_north_resize)
{
if (has_vert && has_horiz)
return META_FRAME_CONTROL_RESIZE_NE;
else if (has_vert)
return META_FRAME_CONTROL_RESIZE_N;
else if (has_horiz)
return META_FRAME_CONTROL_RESIZE_E;
}
else if (y < (fgeom.borders.invisible.top + TOP_RESIZE_HEIGHT))
{
if (has_vert && has_north_resize)
return META_FRAME_CONTROL_RESIZE_N;
}
else if (y >= (fgeom.height - fgeom.borders.total.bottom))
{
if (has_vert)
return META_FRAME_CONTROL_RESIZE_S;
}
else if (x <= fgeom.borders.total.left)
{
if (has_horiz || flags & META_FRAME_TILED_RIGHT)
return META_FRAME_CONTROL_RESIZE_W;
}
else if (x >= (fgeom.width - fgeom.borders.total.right))
{
if (has_horiz || flags & META_FRAME_TILED_LEFT)
return META_FRAME_CONTROL_RESIZE_E;
}
if (y >= fgeom.borders.total.top)
return META_FRAME_CONTROL_NONE;
else
return META_FRAME_CONTROL_TITLE;
}
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