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5bc7ae40958473ad3bbf8b0e717fa13b1aeb936d
mutter/src/ui/ui.c
Jasper St. Pierre 5bc7ae4095 ff
2014-04-06 17:43:43 -04:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Mutter interface for talking to GTK+ UI module */
/*
* Copyright (C) 2002 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, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <meta/prefs.h>
#include "ui.h"
#include "frames.h"
#include <meta/util.h>
#include "menu.h"
#include "core.h"
#include "theme-private.h"
#include <string.h>
#include <stdlib.h>
#include <cairo-xlib.h>
static void meta_ui_accelerator_parse (const char *accel,
guint *keysym,
guint *keycode,
GdkModifierType *keymask);
struct _MetaUI
{
GdkDisplay *display;
GdkScreen *screen;
MetaFrames *frames;
/* For double-click tracking */
gint button_click_number;
Window button_click_window;
int button_click_x;
int button_click_y;
guint32 button_click_time;
};
void
meta_ui_init (void)
{
gdk_set_allowed_backends ("x11");
if (!gtk_init_check (NULL, NULL))
meta_fatal ("Unable to open X display %s\n", XDisplayName (NULL));
}
MetaUI*
meta_ui_new (void)
{
MetaUI *ui;
ui = g_new0 (MetaUI, 1);
ui->display = gdk_display_get_default ();
ui->screen = gdk_screen_get_default ();
ui->frames = meta_frames_new (gdk_screen_get_number (ui->screen));
/* GTK+ needs the frame-sync protocol to work in order to properly
* handle style changes. This means that the dummy widget we create
* to get the style for title bars actually needs to be mapped
* and fully tracked as a MetaWindow. Horrible, but mostly harmless -
* the window is a 1x1 overide redirect window positioned offscreen.
*/
gtk_widget_show (GTK_WIDGET (ui->frames));
return ui;
}
void
meta_ui_free (MetaUI *ui)
{
gtk_widget_destroy (GTK_WIDGET (ui->frames));
g_free (ui);
}
void
meta_ui_get_frame_mask (MetaUI *ui,
Window frame_xwindow,
guint width,
guint height,
cairo_t *cr)
{
meta_frames_get_mask (ui->frames, frame_xwindow, width, height, cr);
}
void
meta_ui_get_frame_borders (MetaUI *ui,
Window frame_xwindow,
MetaFrameBorders *borders)
{
meta_frames_get_borders (ui->frames, frame_xwindow,
borders);
}
Window
meta_ui_create_frame_window (MetaUI *ui,
Visual *xvisual,
gint x,
gint y,
gint width,
gint height,
gint screen_no,
gulong *create_serial)
{
GdkDisplay *display = ui->display;
GdkScreen *screen = gdk_display_get_screen (display, screen_no);
GdkWindowAttr attrs;
gint attributes_mask;
GdkWindow *window;
GdkVisual *visual;
/* Default depth/visual handles clients with weird visuals; they can
* always be children of the root depth/visual obviously, but
* e.g. DRI games can't be children of a parent that has the same
* visual as the client.
*/
if (!xvisual)
visual = gdk_screen_get_system_visual (screen);
else
{
visual = gdk_x11_screen_lookup_visual (screen,
XVisualIDFromVisual (xvisual));
}
attrs.title = NULL;
/* frame.c is going to replace the event mask immediately, but
* we still have to set it here to let GDK know what it is.
*/
attrs.event_mask =
GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK | GDK_FOCUS_CHANGE_MASK;
attrs.x = x;
attrs.y = y;
attrs.wclass = GDK_INPUT_OUTPUT;
attrs.visual = visual;
attrs.window_type = GDK_WINDOW_CHILD;
attrs.cursor = NULL;
attrs.wmclass_name = NULL;
attrs.wmclass_class = NULL;
attrs.override_redirect = FALSE;
attrs.width = width;
attrs.height = height;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
/* We make an assumption that gdk_window_new() is going to call
* XCreateWindow as it's first operation; this seems to be true currently
* as long as you pass in a colormap.
*/
if (create_serial)
*create_serial = XNextRequest (GDK_DISPLAY_XDISPLAY (display));
window =
gdk_window_new (gdk_screen_get_root_window(screen),
&attrs, attributes_mask);
gdk_window_resize (window, width, height);
meta_frames_manage_window (ui->frames, GDK_WINDOW_XID (window), window);
return GDK_WINDOW_XID (window);
}
void
meta_ui_destroy_frame_window (MetaUI *ui,
Window xwindow)
{
meta_frames_unmanage_window (ui->frames, xwindow);
}
void
meta_ui_move_resize_frame (MetaUI *ui,
Window frame,
int x,
int y,
int width,
int height)
{
meta_frames_move_resize_frame (ui->frames, frame, x, y, width, height);
}
void
meta_ui_map_frame (MetaUI *ui,
Window xwindow)
{
GdkDisplay *display = ui->display;
GdkWindow *window;
window = gdk_x11_window_lookup_for_display (display, xwindow);
if (window)
gdk_window_show_unraised (window);
}
void
meta_ui_unmap_frame (MetaUI *ui,
Window xwindow)
{
GdkDisplay *display = ui->display;
GdkWindow *window;
window = gdk_x11_window_lookup_for_display (display, xwindow);
if (window)
gdk_window_hide (window);
}
void
meta_ui_unflicker_frame_bg (MetaUI *ui,
Window xwindow,
int target_width,
int target_height)
{
meta_frames_unflicker_bg (ui->frames, xwindow,
target_width, target_height);
}
void
meta_ui_update_frame_style (MetaUI *ui,
Window xwindow)
{
meta_frames_update_frame_style (ui->frames, xwindow);
}
void
meta_ui_repaint_frame (MetaUI *ui,
Window xwindow)
{
meta_frames_repaint_frame (ui->frames, xwindow);
}
void
meta_ui_reset_frame_bg (MetaUI *ui,
Window xwindow)
{
meta_frames_reset_bg (ui->frames, xwindow);
}
cairo_region_t *
meta_ui_get_frame_bounds (MetaUI *ui,
Window xwindow,
int window_width,
int window_height)
{
return meta_frames_get_frame_bounds (ui->frames, xwindow,
window_width, window_height);
}
void
meta_ui_queue_frame_draw (MetaUI *ui,
Window xwindow)
{
meta_frames_queue_draw (ui->frames, xwindow);
}
void
meta_ui_set_frame_title (MetaUI *ui,
Window xwindow,
const char *title)
{
meta_frames_set_title (ui->frames, xwindow, title);
}
MetaWindowMenu*
meta_ui_window_menu_new (MetaUI *ui,
Window client_xwindow,
MetaMenuOp ops,
MetaMenuOp insensitive,
unsigned long active_workspace,
int n_workspaces,
MetaWindowMenuFunc func,
gpointer data)
{
return meta_window_menu_new (ui->frames,
ops, insensitive,
client_xwindow,
active_workspace,
n_workspaces,
func, data);
}
void
meta_ui_window_menu_popup (MetaWindowMenu *menu,
int root_x,
int root_y,
int button,
guint32 timestamp)
{
meta_window_menu_popup (menu, root_x, root_y, button, timestamp);
}
void
meta_ui_window_menu_free (MetaWindowMenu *menu)
{
meta_window_menu_free (menu);
}
GdkPixbuf*
meta_gdk_pixbuf_get_from_pixmap (Pixmap xpixmap,
int src_x,
int src_y,
int width,
int height)
{
cairo_surface_t *surface;
Display *display;
Window root_return;
int x_ret, y_ret;
unsigned int w_ret, h_ret, bw_ret, depth_ret;
XWindowAttributes attrs;
GdkPixbuf *retval;
display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
if (!XGetGeometry (display, xpixmap, &root_return,
&x_ret, &y_ret, &w_ret, &h_ret, &bw_ret, &depth_ret))
return NULL;
if (depth_ret == 1)
{
surface = cairo_xlib_surface_create_for_bitmap (display,
xpixmap,
GDK_SCREEN_XSCREEN (gdk_screen_get_default ()),
w_ret,
h_ret);
}
else
{
if (!XGetWindowAttributes (display, root_return, &attrs))
return NULL;
surface = cairo_xlib_surface_create (display,
xpixmap,
attrs.visual,
w_ret, h_ret);
}
retval = gdk_pixbuf_get_from_surface (surface,
src_x,
src_y,
width,
height);
cairo_surface_destroy (surface);
return retval;
}
GdkPixbuf*
meta_ui_get_default_window_icon (MetaUI *ui)
{
static GdkPixbuf *default_icon = NULL;
if (default_icon == NULL)
{
GtkIconTheme *theme;
gboolean icon_exists;
theme = gtk_icon_theme_get_default ();
icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);
if (icon_exists)
default_icon = gtk_icon_theme_load_icon (theme,
META_DEFAULT_ICON_NAME,
META_ICON_WIDTH,
0,
NULL);
else
default_icon = gtk_icon_theme_load_icon (theme,
"image-missing",
META_ICON_WIDTH,
0,
NULL);
g_assert (default_icon);
}
g_object_ref (G_OBJECT (default_icon));
return default_icon;
}
GdkPixbuf*
meta_ui_get_default_mini_icon (MetaUI *ui)
{
static GdkPixbuf *default_icon = NULL;
if (default_icon == NULL)
{
GtkIconTheme *theme;
gboolean icon_exists;
theme = gtk_icon_theme_get_default ();
icon_exists = gtk_icon_theme_has_icon (theme, META_DEFAULT_ICON_NAME);
if (icon_exists)
default_icon = gtk_icon_theme_load_icon (theme,
META_DEFAULT_ICON_NAME,
META_MINI_ICON_WIDTH,
0,
NULL);
else
default_icon = gtk_icon_theme_load_icon (theme,
"image-missing",
META_MINI_ICON_WIDTH,
0,
NULL);
g_assert (default_icon);
}
g_object_ref (G_OBJECT (default_icon));
return default_icon;
}
gboolean
meta_ui_window_should_not_cause_focus (MetaUI *ui,
Window xwindow)
{
GdkWindow *window;
GdkDisplay *display;
display = ui->display;
window = gdk_x11_window_lookup_for_display (display, xwindow);
/* we shouldn't cause focus if we're an override redirect
* toplevel which is not foreign
*/
if (window && gdk_window_get_window_type (window) == GDK_WINDOW_TEMP)
return TRUE;
else
return FALSE;
}
void
meta_ui_theme_get_frame_borders (MetaUI *ui,
MetaFrameType type,
MetaFrameFlags flags,
MetaFrameBorders *borders)
{
int text_height;
GtkStyleContext *style = NULL;
PangoContext *context;
const PangoFontDescription *font_desc;
PangoFontDescription *free_font_desc = NULL;
if (meta_ui_have_a_theme ())
{
context = gtk_widget_get_pango_context (GTK_WIDGET (ui->frames));
font_desc = meta_prefs_get_titlebar_font ();
if (!font_desc)
{
GdkScreen *screen = ui->screen;
GtkWidgetPath *widget_path;
style = gtk_style_context_new ();
gtk_style_context_set_screen (style, screen);
widget_path = gtk_widget_path_new ();
gtk_widget_path_append_type (widget_path, GTK_TYPE_WINDOW);
gtk_style_context_set_path (style, widget_path);
gtk_widget_path_free (widget_path);
gtk_style_context_get (style, GTK_STATE_FLAG_NORMAL, "font", &free_font_desc, NULL);
font_desc = (const PangoFontDescription *) free_font_desc;
}
text_height = meta_pango_font_desc_get_text_height (font_desc, context);
meta_theme_get_frame_borders (meta_theme_get_current (),
type, text_height, flags,
borders);
if (free_font_desc)
pango_font_description_free (free_font_desc);
}
else
{
meta_frame_borders_clear (borders);
}
if (style != NULL)
g_object_unref (style);
}
void
meta_ui_set_current_theme (const char *name)
{
meta_theme_set_current (name);
meta_invalidate_default_icons ();
}
gboolean
meta_ui_have_a_theme (void)
{
return meta_theme_get_current () != NULL;
}
static void
meta_ui_accelerator_parse (const char *accel,
guint *keysym,
guint *keycode,
GdkModifierType *keymask)
{
const char *above_tab;
if (accel[0] == '0' && accel[1] == 'x')
{
*keysym = 0;
*keycode = (guint) strtoul (accel, NULL, 16);
*keymask = 0;
return;
}
/* The key name 'Above_Tab' is special - it's not an actual keysym name,
* but rather refers to the key above the tab key. In order to use
* the GDK parsing for modifiers in combination with it, we substitute
* it with 'Tab' temporarily before calling gtk_accelerator_parse().
*/
#define is_word_character(c) (g_ascii_isalnum(c) || ((c) == '_'))
#define ABOVE_TAB "Above_Tab"
#define ABOVE_TAB_LEN 9
above_tab = strstr (accel, ABOVE_TAB);
if (above_tab &&
(above_tab == accel || !is_word_character (above_tab[-1])) &&
!is_word_character (above_tab[ABOVE_TAB_LEN]))
{
char *before = g_strndup (accel, above_tab - accel);
char *after = g_strdup (above_tab + ABOVE_TAB_LEN);
char *replaced = g_strconcat (before, "Tab", after, NULL);
gtk_accelerator_parse (replaced, NULL, keymask);
g_free (before);
g_free (after);
g_free (replaced);
*keysym = META_KEY_ABOVE_TAB;
return;
}
#undef is_word_character
#undef ABOVE_TAB
#undef ABOVE_TAB_LEN
gtk_accelerator_parse (accel, keysym, keymask);
}
gboolean
meta_ui_parse_accelerator (const char *accel,
unsigned int *keysym,
unsigned int *keycode,
MetaVirtualModifier *mask)
{
GdkModifierType gdk_mask = 0;
guint gdk_sym = 0;
guint gdk_code = 0;
*keysym = 0;
*keycode = 0;
*mask = 0;
if (!accel[0] || strcmp (accel, "disabled") == 0)
return TRUE;
meta_ui_accelerator_parse (accel, &gdk_sym, &gdk_code, &gdk_mask);
if (gdk_mask == 0 && gdk_sym == 0 && gdk_code == 0)
return FALSE;
if (gdk_sym == None && gdk_code == 0)
return FALSE;
if (gdk_mask & GDK_RELEASE_MASK) /* we don't allow this */
return FALSE;
*keysym = gdk_sym;
*keycode = gdk_code;
if (gdk_mask & GDK_SHIFT_MASK)
*mask |= META_VIRTUAL_SHIFT_MASK;
if (gdk_mask & GDK_CONTROL_MASK)
*mask |= META_VIRTUAL_CONTROL_MASK;
if (gdk_mask & GDK_MOD1_MASK)
*mask |= META_VIRTUAL_ALT_MASK;
if (gdk_mask & GDK_MOD2_MASK)
*mask |= META_VIRTUAL_MOD2_MASK;
if (gdk_mask & GDK_MOD3_MASK)
*mask |= META_VIRTUAL_MOD3_MASK;
if (gdk_mask & GDK_MOD4_MASK)
*mask |= META_VIRTUAL_MOD4_MASK;
if (gdk_mask & GDK_MOD5_MASK)
*mask |= META_VIRTUAL_MOD5_MASK;
if (gdk_mask & GDK_SUPER_MASK)
*mask |= META_VIRTUAL_SUPER_MASK;
if (gdk_mask & GDK_HYPER_MASK)
*mask |= META_VIRTUAL_HYPER_MASK;
if (gdk_mask & GDK_META_MASK)
*mask |= META_VIRTUAL_META_MASK;
return TRUE;
}
/* Caller responsible for freeing return string of meta_ui_accelerator_name! */
gchar*
meta_ui_accelerator_name (unsigned int keysym,
MetaVirtualModifier mask)
{
GdkModifierType mods = 0;
if (keysym == 0 && mask == 0)
{
return g_strdup ("disabled");
}
if (mask & META_VIRTUAL_SHIFT_MASK)
mods |= GDK_SHIFT_MASK;
if (mask & META_VIRTUAL_CONTROL_MASK)
mods |= GDK_CONTROL_MASK;
if (mask & META_VIRTUAL_ALT_MASK)
mods |= GDK_MOD1_MASK;
if (mask & META_VIRTUAL_MOD2_MASK)
mods |= GDK_MOD2_MASK;
if (mask & META_VIRTUAL_MOD3_MASK)
mods |= GDK_MOD3_MASK;
if (mask & META_VIRTUAL_MOD4_MASK)
mods |= GDK_MOD4_MASK;
if (mask & META_VIRTUAL_MOD5_MASK)
mods |= GDK_MOD5_MASK;
if (mask & META_VIRTUAL_SUPER_MASK)
mods |= GDK_SUPER_MASK;
if (mask & META_VIRTUAL_HYPER_MASK)
mods |= GDK_HYPER_MASK;
if (mask & META_VIRTUAL_META_MASK)
mods |= GDK_META_MASK;
return gtk_accelerator_name (keysym, mods);
}
gboolean
meta_ui_parse_modifier (const char *accel,
MetaVirtualModifier *mask)
{
GdkModifierType gdk_mask = 0;
guint gdk_sym = 0;
guint gdk_code = 0;
*mask = 0;
if (accel == NULL || !accel[0] || strcmp (accel, "disabled") == 0)
return TRUE;
meta_ui_accelerator_parse (accel, &gdk_sym, &gdk_code, &gdk_mask);
if (gdk_mask == 0 && gdk_sym == 0 && gdk_code == 0)
return FALSE;
if (gdk_sym != None || gdk_code != 0)
return FALSE;
if (gdk_mask & GDK_RELEASE_MASK) /* we don't allow this */
return FALSE;
if (gdk_mask & GDK_SHIFT_MASK)
*mask |= META_VIRTUAL_SHIFT_MASK;
if (gdk_mask & GDK_CONTROL_MASK)
*mask |= META_VIRTUAL_CONTROL_MASK;
if (gdk_mask & GDK_MOD1_MASK)
*mask |= META_VIRTUAL_ALT_MASK;
if (gdk_mask & GDK_MOD2_MASK)
*mask |= META_VIRTUAL_MOD2_MASK;
if (gdk_mask & GDK_MOD3_MASK)
*mask |= META_VIRTUAL_MOD3_MASK;
if (gdk_mask & GDK_MOD4_MASK)
*mask |= META_VIRTUAL_MOD4_MASK;
if (gdk_mask & GDK_MOD5_MASK)
*mask |= META_VIRTUAL_MOD5_MASK;
if (gdk_mask & GDK_SUPER_MASK)
*mask |= META_VIRTUAL_SUPER_MASK;
if (gdk_mask & GDK_HYPER_MASK)
*mask |= META_VIRTUAL_HYPER_MASK;
if (gdk_mask & GDK_META_MASK)
*mask |= META_VIRTUAL_META_MASK;
return TRUE;
}
gboolean
meta_ui_window_is_widget (MetaUI *ui,
Window xwindow)
{
GdkDisplay *display = ui->display;
GdkWindow *window;
window = gdk_x11_window_lookup_for_display (display, xwindow);
if (window)
{
void *user_data = NULL;
gdk_window_get_user_data (window, &user_data);
return user_data != NULL && user_data != ui->frames;
}
else
return FALSE;
}
int
meta_ui_get_drag_threshold (MetaUI *ui)
{
GtkSettings *settings;
int threshold;
settings = gtk_widget_get_settings (GTK_WIDGET (ui->frames));
threshold = 8;
g_object_get (G_OBJECT (settings), "gtk-dnd-drag-threshold", &threshold, NULL);
return threshold;
}
MetaUIDirection
meta_ui_get_direction (void)
{
if (gtk_widget_get_default_direction() == GTK_TEXT_DIR_RTL)
return META_UI_DIRECTION_RTL;
return META_UI_DIRECTION_LTR;
}
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