openbox/focus_cycle_popup.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    focus_cycle_popup.c for the Openbox window manager
   4    Copyright (c) 2006        Mikael Magnusson
   5    Copyright (c) 2003-2007   Dana Jansens
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    See the COPYING file for a copy of the GNU General Public License.
  18 */
  19
  20 #include "focus_cycle_popup.h"
  21 #include "popup.h"
  22 #include "client.h"
  23 #include "screen.h"
  24 #include "focus.h"
  25 #include "openbox.h"
  26 #include "window.h"
  27 #include "event.h"
  28 #include "render/render.h"
  29
  30 #include <X11/Xlib.h>
  31 #include <glib.h>
  32
  33 #define ICON_SIZE 40
  34 #define ICON_HILITE_WIDTH 2
  35 #define ICON_HILITE_MARGIN 1
  36 #define OUTSIDE_BORDER 3
  37 #define TEXT_BORDER 2
  38
  39 typedef struct _ObFocusCyclePopup       ObFocusCyclePopup;
  40 typedef struct _ObFocusCyclePopupTarget ObFocusCyclePopupTarget;
  41
  42 struct _ObFocusCyclePopupTarget
  43 {
  44     ObClient *client;
  45     gchar *text;
  46     Window iconwin;
  47     Window textwin;
  48 };
  49
  50 struct _ObFocusCyclePopup
  51 {
  52     ObWindow obwin;
  53     Window bg;
  54
  55     GList *targets;
  56     gint n_targets;
  57
  58     const ObFocusCyclePopupTarget *last_target;
  59
  60     gint maxtextw;
  61
  62     RrAppearance *a_bg;
  63     RrAppearance *a_text;
  64     RrAppearance *a_icon;
  65
  66     RrPixel32 *hilite_rgba;
  67
  68     gboolean mapped;
  69 };
  70
  71 /*! This popup shows all possible windows */
  72 static ObFocusCyclePopup popup;
  73 /*! This popup shows a single window */
  74 static ObIconPopup *single_popup;
  75
  76 static gchar *popup_get_name (ObClient *c);
  77 static void   popup_setup    (ObFocusCyclePopup *p,
  78                               gboolean create_targets,
  79                               gboolean iconic_windows,
  80                               gboolean all_desktops,
  81                               gboolean dock_windows,
  82                               gboolean desktop_windows);
  83 static void   popup_render   (ObFocusCyclePopup *p,
  84                               const ObClient *c);
  85
  86 static Window create_window(Window parent, guint bwidth, gulong mask,
  87                             XSetWindowAttributes *attr)
  88 {
  89     return XCreateWindow(obt_display, parent, 0, 0, 1, 1, bwidth,
  90                          RrDepth(ob_rr_inst), InputOutput,
  91                          RrVisual(ob_rr_inst), mask, attr);
  92 }
  93
  94 void focus_cycle_popup_startup(gboolean reconfig)
  95 {
  96     XSetWindowAttributes attrib;
  97
  98     single_popup = icon_popup_new();
  99
 100     popup.obwin.type = OB_WINDOW_CLASS_INTERNAL;
 101     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 102     popup.a_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
 103     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear);
 104
 105     popup.a_text->surface.parent = popup.a_bg;
 106     popup.a_icon->surface.parent = popup.a_bg;
 107
 108     RrAppearanceAddTextures(popup.a_icon, 2);
 109
 110     popup.a_icon->texture[1].type = RR_TEXTURE_RGBA;
 111
 112     attrib.override_redirect = True;
 113     attrib.border_pixel=RrColorPixel(ob_rr_theme->osd_border_color);
 114     popup.bg = create_window(obt_root(ob_screen), ob_rr_theme->obwidth,
 115                              CWOverrideRedirect | CWBorderPixel, &attrib);
 116
 117     popup.targets = NULL;
 118     popup.n_targets = 0;
 119     popup.last_target = NULL;
 120
 121     popup.hilite_rgba = NULL;
 122
 123     stacking_add(INTERNAL_AS_WINDOW(&popup));
 124     window_add(&popup.bg, INTERNAL_AS_WINDOW(&popup));
 125 }
 126
 127 void focus_cycle_popup_shutdown(gboolean reconfig)
 128 {
 129     icon_popup_free(single_popup);
 130
 131     window_remove(popup.bg);
 132     stacking_remove(INTERNAL_AS_WINDOW(&popup));
 133
 134     while(popup.targets) {
 135         ObFocusCyclePopupTarget *t = popup.targets->data;
 136
 137         g_free(t->text);
 138         XDestroyWindow(obt_display, t->iconwin);
 139         XDestroyWindow(obt_display, t->textwin);
 140
 141         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 142     }
 143
 144     g_free(popup.hilite_rgba);
 145     popup.hilite_rgba = NULL;
 146
 147     XDestroyWindow(obt_display, popup.bg);
 148
 149     RrAppearanceFree(popup.a_icon);
 150     RrAppearanceFree(popup.a_text);
 151     RrAppearanceFree(popup.a_bg);
 152 }
 153
 154 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets,
 155                         gboolean iconic_windows, gboolean all_desktops,
 156                         gboolean dock_windows, gboolean desktop_windows)
 157 {
 158     gint maxwidth, n;
 159     GList *it;
 160
 161     g_assert(p->targets == NULL);
 162     g_assert(p->n_targets == 0);
 163
 164     /* make its width to be the width of all the possible titles */
 165
 166     /* build a list of all the valid focus targets and measure their strings,
 167        and count them */
 168     maxwidth = 0;
 169     n = 0;
 170     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
 171         ObClient *ft = it->data;
 172
 173         if (focus_valid_target(ft, TRUE,
 174                                iconic_windows,
 175                                all_desktops,
 176                                dock_windows,
 177                                desktop_windows))
 178         {
 179             gchar *text = popup_get_name(ft);
 180
 181             /* measure */
 182             p->a_text->texture[0].data.text.string = text;
 183             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
 184
 185             if (!create_targets)
 186                 g_free(text);
 187             else {
 188                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
 189
 190                 t->client = ft;
 191                 t->text = text;
 192                 t->iconwin = create_window(p->bg, 0, 0, NULL);
 193                 t->textwin = create_window(p->bg, 0, 0, NULL);
 194
 195                 XMapWindow(obt_display, t->iconwin);
 196                 XMapWindow(obt_display, t->textwin);
 197
 198                 p->targets = g_list_prepend(p->targets, t);
 199                 ++n;
 200             }
 201         }
 202     }
 203
 204     p->n_targets = n;
 205     p->maxtextw = maxwidth;
 206 }
 207
 208 static gchar *popup_get_name(ObClient *c)
 209 {
 210     ObClient *p;
 211     gchar *title;
 212     const gchar *desk = NULL;
 213     gchar *ret;
 214
 215     /* find our highest direct parent */
 216     p = client_search_top_direct_parent(c);
 217
 218     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 219         desk = screen_desktop_names[c->desktop];
 220
 221     title = c->iconic ? c->icon_title : c->title;
 222
 223     /* use the transient's parent's title/icon if we don't have one */
 224     if (p != c && title[0] == '\0')
 225         title = p->iconic ? p->icon_title : p->title;
 226
 227     if (desk)
 228         ret = g_strdup_printf("%s [%s]", title, desk);
 229     else
 230         ret = g_strdup(title);
 231
 232     return ret;
 233 }
 234
 235 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 236 {
 237     gint ml, mt, mr, mb;
 238     gint l, t, r, b;
 239     gint x, y, w, h;
 240     Rect *screen_area = NULL;
 241     gint rgbax, rgbay, rgbaw, rgbah;
 242     gint innerw, innerh;
 243     gint i;
 244     GList *it;
 245     const ObFocusCyclePopupTarget *newtarget;
 246     gint newtargetx, newtargety;
 247
 248     screen_area = screen_physical_area_active();
 249
 250     /* get the outside margins */
 251     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 252
 253     /* get our outside borders */
 254     l = ml + OUTSIDE_BORDER;
 255     r = mr + OUTSIDE_BORDER;
 256     t = mt + OUTSIDE_BORDER;
 257     b = mb + OUTSIDE_BORDER;
 258
 259     /* get the icon pictures' sizes */
 260     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 261     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 262
 263     /* get the width from the text and keep it within limits */
 264     w = l + r + p->maxtextw;
 265     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 266     w = MAX(w, POPUP_WIDTH); /* min width */
 267
 268     /* find the height of the dialog */
 269 #warning limit the height and scroll entries somehow
 270     h = t + b + (p->n_targets * ICON_SIZE) + OUTSIDE_BORDER;
 271
 272     /* find the position for the popup (include the outer borders) */
 273     x = screen_area->x + (screen_area->width -
 274                           (w + ob_rr_theme->obwidth * 2)) / 2;
 275     y = screen_area->y + (screen_area->height -
 276                           (h + ob_rr_theme->obwidth * 2)) / 2;
 277
 278     /* get the dimensions of the target hilite texture */
 279     rgbax = ml;
 280     rgbay = mt;
 281     rgbaw = w - ml - mr;
 282     rgbah = h - mt - mb;
 283
 284     if (!p->mapped) {
 285         /* position the background but don't draw it*/
 286         XMoveResizeWindow(obt_display, p->bg, x, y, w, h);
 287
 288         /* set up the hilite texture for the icon */
 289         p->a_icon->texture[0].data.rgba.width = ICON_SIZE;
 290         p->a_icon->texture[0].data.rgba.height = ICON_SIZE;
 291         p->a_icon->texture[0].data.rgba.alpha = 0xff;
 292         p->hilite_rgba = g_new(RrPixel32, ICON_SIZE * ICON_SIZE);
 293         p->a_icon->texture[0].data.rgba.data = p->hilite_rgba;
 294     }
 295
 296     /* find the focused target */
 297     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 298         const ObFocusCyclePopupTarget *target = it->data;
 299
 300         if (target->client == c) {
 301             /* save the target */
 302             newtarget = target;
 303             newtargetx = l;
 304             newtargety = t + i * ICON_SIZE;
 305
 306             if (!p->mapped)
 307                 break; /* if we're not dimensioning, then we're done */
 308         }
 309     }
 310
 311     g_assert(newtarget != NULL);
 312
 313     /* create the hilite under the target icon */
 314     {
 315         RrPixel32 color;
 316         gint i, j, o;
 317
 318         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 319             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 320             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 321
 322         o = 0;
 323         for (x = 0; x < ICON_SIZE; x++)
 324             for (y = 0; y < ICON_SIZE; y++) {
 325                 guchar a;
 326
 327                 if (x < ICON_HILITE_WIDTH ||
 328                     x >= ICON_SIZE - ICON_HILITE_WIDTH ||
 329                     y < ICON_HILITE_WIDTH ||
 330                     y >= ICON_SIZE - ICON_HILITE_WIDTH)
 331                 {
 332                     /* the border of the target */
 333                     a = 0x88;
 334                 }
 335                 else {
 336                     /* the background of the target */
 337                     a = 0x22;
 338                 }
 339
 340                 p->hilite_rgba[o++] =
 341                     color + (a << RrDefaultAlphaOffset);
 342             }
 343     }
 344
 345     /* * * draw everything * * */
 346
 347     /* draw the background */
 348     if (!p->mapped)
 349         RrPaint(p->a_bg, p->bg, w, h);
 350
 351     /* draw the icons and text */
 352     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 353         const ObFocusCyclePopupTarget *target = it->data;
 354
 355         /* have to redraw the targetted icon and last targetted icon,
 356            they can pick up the hilite changes in the backgroud */
 357         if (!p->mapped || newtarget == target || p->last_target == target) {
 358             const ObClientIcon *icon;
 359             gint innerx, innery;
 360
 361             /* find the dimensions of the icon inside it */
 362             innerx = l;
 363             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 364             innery = t + i * ICON_SIZE;
 365             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 366
 367             /* move the icon */
 368             XMoveResizeWindow(obt_display, target->iconwin,
 369                               innerx, innery, innerw, innerh);
 370
 371             /* move the text */
 372             XMoveResizeWindow(obt_display, target->textwin,
 373                               innerx + ICON_SIZE, innery,
 374                               w - innerx - ICON_SIZE - OUTSIDE_BORDER, innerh);
 375
 376             /* get the icon from the client */
 377             icon = client_icon(target->client, innerw, innerh);
 378             p->a_icon->texture[1].data.rgba.width = icon->width;
 379             p->a_icon->texture[1].data.rgba.height = icon->height;
 380             p->a_icon->texture[1].data.rgba.alpha =
 381                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
 382             p->a_icon->texture[1].data.rgba.data = icon->data;
 383
 384             /* Draw the hilite? */
 385 #warning do i have to add more obrender interface thingers to get it to draw the icon inside the hilight? sigh
 386             p->a_icon->texture[0].type = (target == newtarget) ?
 387                                          RR_TEXTURE_RGBA : RR_TEXTURE_NONE;
 388
 389             /* draw the icon */
 390             p->a_icon->surface.parentx = innerx;
 391             p->a_icon->surface.parenty = innery;
 392             RrPaint(p->a_icon, target->iconwin, innerw, innerh);
 393
 394             /* draw the text */
 395             p->a_text->texture[0].data.text.string = target->text;
 396             p->a_text->surface.parentx = innerx + ICON_SIZE;
 397             p->a_text->surface.parenty = innery;
 398             RrPaint(p->a_text, target->textwin, w - innerx - ICON_SIZE - OUTSIDE_BORDER, innerh);
 399         }
 400     }
 401
 402     p->last_target = newtarget;
 403
 404     g_free(screen_area);
 405 }
 406
 407 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
 408                             gboolean all_desktops, gboolean dock_windows,
 409                             gboolean desktop_windows)
 410 {
 411     g_assert(c != NULL);
 412
 413     /* do this stuff only when the dialog is first showing */
 414     if (!popup.mapped)
 415         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
 416                     dock_windows, desktop_windows);
 417     g_assert(popup.targets != NULL);
 418
 419     popup_render(&popup, c);
 420
 421     if (!popup.mapped) {
 422         /* show the dialog */
 423         XMapWindow(obt_display, popup.bg);
 424         XFlush(obt_display);
 425         popup.mapped = TRUE;
 426         screen_hide_desktop_popup();
 427     }
 428 }
 429
 430 void focus_cycle_popup_hide(void)
 431 {
 432     gulong ignore_start;
 433
 434     ignore_start = event_start_ignore_all_enters();
 435
 436     XUnmapWindow(obt_display, popup.bg);
 437     XFlush(obt_display);
 438
 439     event_end_ignore_all_enters(ignore_start);
 440
 441     popup.mapped = FALSE;
 442
 443     while(popup.targets) {
 444         ObFocusCyclePopupTarget *t = popup.targets->data;
 445
 446         g_free(t->text);
 447         XDestroyWindow(obt_display, t->iconwin);
 448         XDestroyWindow(obt_display, t->textwin);
 449         g_free(t);
 450
 451         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 452     }
 453     popup.n_targets = 0;
 454     popup.last_target = NULL;
 455
 456     g_free(popup.hilite_rgba);
 457     popup.hilite_rgba = NULL;
 458 }
 459
 460 void focus_cycle_popup_single_show(struct _ObClient *c,
 461                                    gboolean iconic_windows,
 462                                    gboolean all_desktops,
 463                                    gboolean dock_windows,
 464                                    gboolean desktop_windows)
 465 {
 466     gchar *text;
 467
 468     g_assert(c != NULL);
 469
 470     /* do this stuff only when the dialog is first showing */
 471     if (!popup.mapped) {
 472         Rect *a;
 473
 474         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
 475                     dock_windows, desktop_windows);
 476         g_assert(popup.targets == NULL);
 477
 478         /* position the popup */
 479         a = screen_physical_area_active();
 480         icon_popup_position(single_popup, CenterGravity,
 481                             a->x + a->width / 2, a->y + a->height / 2);
 482         icon_popup_height(single_popup, POPUP_HEIGHT);
 483         icon_popup_min_width(single_popup, POPUP_WIDTH);
 484         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
 485         icon_popup_text_width(single_popup, popup.maxtextw);
 486         g_free(a);
 487     }
 488
 489     text = popup_get_name(c);
 490     icon_popup_show(single_popup, text, client_icon(c, ICON_SIZE, ICON_SIZE));
 491     g_free(text);
 492     screen_hide_desktop_popup();
 493 }
 494
 495 void focus_cycle_popup_single_hide(void)
 496 {
 497     icon_popup_hide(single_popup);
 498 }