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     RrImage *icon;
  46     gchar *text;
  47     Window win;
  48 };
  49
  50 struct _ObFocusCyclePopup
  51 {
  52     ObWindow obwin;
  53     Window bg;
  54
  55     Window text;
  56
  57     GList *targets;
  58     gint n_targets;
  59
  60     const ObFocusCyclePopupTarget *last_target;
  61
  62     gint maxtextw;
  63
  64     RrAppearance *a_bg;
  65     RrAppearance *a_text;
  66     RrAppearance *a_icon;
  67
  68     RrPixel32 *hilite_rgba;
  69
  70     gboolean mapped;
  71 };
  72
  73 /*! This popup shows all possible windows */
  74 static ObFocusCyclePopup popup;
  75 /*! This popup shows a single window */
  76 static ObIconPopup *single_popup;
  77
  78 static gchar *popup_get_name (ObClient *c);
  79 static void   popup_setup    (ObFocusCyclePopup *p,
  80                               gboolean create_targets,
  81                               gboolean iconic_windows,
  82                               gboolean all_desktops,
  83                               gboolean dock_windows,
  84                               gboolean desktop_windows);
  85 static void   popup_render   (ObFocusCyclePopup *p,
  86                               const ObClient *c);
  87
  88 static Window create_window(Window parent, guint bwidth, gulong mask,
  89                             XSetWindowAttributes *attr)
  90 {
  91     return XCreateWindow(ob_display, parent, 0, 0, 1, 1, bwidth,
  92                          RrDepth(ob_rr_inst), InputOutput,
  93                          RrVisual(ob_rr_inst), mask, attr);
  94 }
  95
  96 void focus_cycle_popup_startup(gboolean reconfig)
  97 {
  98     XSetWindowAttributes attrib;
  99
 100     single_popup = icon_popup_new();
 101
 102     popup.obwin.type = Window_Internal;
 103     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 104     popup.a_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
 105     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear_tex);
 106
 107     popup.a_text->surface.parent = popup.a_bg;
 108     popup.a_icon->surface.parent = popup.a_bg;
 109
 110     RrAppearanceClearTextures(popup.a_icon);
 111     popup.a_icon->texture[0].type = RR_TEXTURE_IMAGE;
 112
 113     RrAppearanceAddTextures(popup.a_bg, 1);
 114     popup.a_bg->texture[0].type = RR_TEXTURE_RGBA;
 115
 116     attrib.override_redirect = True;
 117     attrib.border_pixel=RrColorPixel(ob_rr_theme->osd_border_color);
 118     popup.bg = create_window(RootWindow(ob_display, ob_screen),
 119                              ob_rr_theme->obwidth,
 120                              CWOverrideRedirect | CWBorderPixel, &attrib);
 121
 122     popup.text = create_window(popup.bg, 0, 0, NULL);
 123
 124     popup.targets = NULL;
 125     popup.n_targets = 0;
 126     popup.last_target = NULL;
 127
 128     popup.hilite_rgba = NULL;
 129
 130     XMapWindow(ob_display, popup.text);
 131
 132     stacking_add(INTERNAL_AS_WINDOW(&popup));
 133     g_hash_table_insert(window_map, &popup.bg, &popup);
 134 }
 135
 136 void focus_cycle_popup_shutdown(gboolean reconfig)
 137 {
 138     icon_popup_free(single_popup);
 139
 140     g_hash_table_remove(window_map, &popup.bg);
 141     stacking_remove(INTERNAL_AS_WINDOW(&popup));
 142
 143     while(popup.targets) {
 144         ObFocusCyclePopupTarget *t = popup.targets->data;
 145
 146         RrImageUnref(t->icon);
 147         g_free(t->text);
 148         XDestroyWindow(ob_display, t->win);
 149         g_free(t);
 150
 151         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 152     }
 153
 154     g_free(popup.hilite_rgba);
 155     popup.hilite_rgba = NULL;
 156
 157     XDestroyWindow(ob_display, popup.text);
 158     XDestroyWindow(ob_display, popup.bg);
 159
 160     RrAppearanceFree(popup.a_icon);
 161     RrAppearanceFree(popup.a_text);
 162     RrAppearanceFree(popup.a_bg);
 163 }
 164
 165 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets,
 166                         gboolean iconic_windows, gboolean all_desktops,
 167                         gboolean dock_windows, gboolean desktop_windows)
 168 {
 169     gint maxwidth, n;
 170     GList *it;
 171
 172     g_assert(p->targets == NULL);
 173     g_assert(p->n_targets == 0);
 174
 175     /* make its width to be the width of all the possible titles */
 176
 177     /* build a list of all the valid focus targets and measure their strings,
 178        and count them */
 179     maxwidth = 0;
 180     n = 0;
 181     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
 182         ObClient *ft = it->data;
 183
 184         if (focus_valid_target(ft, TRUE,
 185                                iconic_windows,
 186                                all_desktops,
 187                                dock_windows,
 188                                desktop_windows))
 189         {
 190             gchar *text = popup_get_name(ft);
 191
 192             /* measure */
 193             p->a_text->texture[0].data.text.string = text;
 194             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
 195
 196             if (!create_targets)
 197                 g_free(text);
 198             else {
 199                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
 200
 201                 t->client = ft;
 202                 t->text = text;
 203                 t->icon = client_icon(t->client);
 204                 RrImageRef(t->icon); /* own the icon so it won't go away */
 205                 t->win = create_window(p->bg, 0, 0, NULL);
 206
 207                 XMapWindow(ob_display, t->win);
 208
 209                 p->targets = g_list_prepend(p->targets, t);
 210                 ++n;
 211             }
 212         }
 213     }
 214
 215     p->n_targets = n;
 216     p->maxtextw = maxwidth;
 217 }
 218
 219 static gchar *popup_get_name(ObClient *c)
 220 {
 221     ObClient *p;
 222     gchar *title;
 223     const gchar *desk = NULL;
 224     gchar *ret;
 225
 226     /* find our highest direct parent */
 227     p = client_search_top_direct_parent(c);
 228
 229     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 230         desk = screen_desktop_names[c->desktop];
 231
 232     title = c->iconic ? c->icon_title : c->title;
 233
 234     /* use the transient's parent's title/icon if we don't have one */
 235     if (p != c && title[0] == '\0')
 236         title = p->iconic ? p->icon_title : p->title;
 237
 238     if (desk)
 239         ret = g_strdup_printf("%s [%s]", title, desk);
 240     else
 241         ret = g_strdup(title);
 242
 243     return ret;
 244 }
 245
 246 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 247 {
 248     gint ml, mt, mr, mb;
 249     gint l, t, r, b;
 250     gint x, y, w, h;
 251     Rect *screen_area = NULL;
 252     gint icons_per_row;
 253     gint icon_rows;
 254     gint textx, texty, textw, texth;
 255     gint rgbax, rgbay, rgbaw, rgbah;
 256     gint icons_center_x;
 257     gint innerw, innerh;
 258     gint i;
 259     GList *it;
 260     const ObFocusCyclePopupTarget *newtarget;
 261     gint newtargetx, newtargety;
 262
 263     screen_area = screen_physical_area_active();
 264
 265     /* get the outside margins */
 266     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 267
 268     /* get our outside borders */
 269     l = ml + OUTSIDE_BORDER;
 270     r = mr + OUTSIDE_BORDER;
 271     t = mt + OUTSIDE_BORDER;
 272     b = mb + OUTSIDE_BORDER;
 273
 274     /* get the icon pictures' sizes */
 275     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 276     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 277
 278     /* get the width from the text and keep it within limits */
 279     w = l + r + p->maxtextw;
 280     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 281     w = MAX(w, POPUP_WIDTH); /* min width */
 282
 283     /* how many icons will fit in that row? make the width fit that */
 284     w -= l + r;
 285     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
 286     w = icons_per_row * ICON_SIZE + l + r;
 287
 288     /* how many rows do we need? */
 289     icon_rows = (p->n_targets-1) / icons_per_row + 1;
 290
 291     /* get the text dimensions */
 292     textw = w - l - r;
 293     texth = RrMinHeight(p->a_text) + TEXT_BORDER * 2;
 294
 295     /* find the height of the dialog */
 296     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER + texth);
 297
 298     /* get the position of the text */
 299     textx = l;
 300     texty = h - texth - b;
 301
 302     /* find the position for the popup (include the outer borders) */
 303     x = screen_area->x + (screen_area->width -
 304                           (w + ob_rr_theme->obwidth * 2)) / 2;
 305     y = screen_area->y + (screen_area->height -
 306                           (h + ob_rr_theme->obwidth * 2)) / 2;
 307
 308     /* get the dimensions of the target hilite texture */
 309     rgbax = ml;
 310     rgbay = mt;
 311     rgbaw = w - ml - mr;
 312     rgbah = h - mt - mb;
 313
 314     /* center the icons if there is less than one row */
 315     if (icon_rows == 1)
 316         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
 317     else
 318         icons_center_x = 0;
 319
 320     if (!p->mapped) {
 321         /* position the background but don't draw it*/
 322         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
 323
 324         /* set up the hilite texture for the background */
 325         p->a_bg->texture[0].data.rgba.width = rgbaw;
 326         p->a_bg->texture[0].data.rgba.height = rgbah;
 327         p->a_bg->texture[0].data.rgba.alpha = 0xff;
 328         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
 329         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
 330
 331         /* position the text, but don't draw it */
 332         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
 333         p->a_text->surface.parentx = textx;
 334         p->a_text->surface.parenty = texty;
 335     }
 336
 337     /* find the focused target */
 338     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 339         const ObFocusCyclePopupTarget *target = it->data;
 340         const gint row = i / icons_per_row; /* starting from 0 */
 341         const gint col = i % icons_per_row; /* starting from 0 */
 342
 343         if (target->client == c) {
 344             /* save the target */
 345             newtarget = target;
 346             newtargetx = icons_center_x + l + (col * ICON_SIZE);
 347             newtargety = t + (row * ICON_SIZE);
 348
 349             if (!p->mapped)
 350                 break; /* if we're not dimensioning, then we're done */
 351         }
 352     }
 353
 354     g_assert(newtarget != NULL);
 355
 356     /* create the hilite under the target icon */
 357     {
 358         RrPixel32 color;
 359         gint i, j, o;
 360
 361         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 362             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 363             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 364
 365         o = 0;
 366         for (i = 0; i < rgbah; ++i)
 367             for (j = 0; j < rgbaw; ++j) {
 368                 guchar a;
 369                 const gint x = j + rgbax - newtargetx;
 370                 const gint y = i + rgbay - newtargety;
 371
 372                 if (x < 0 || x >= ICON_SIZE ||
 373                     y < 0 || y >= ICON_SIZE)
 374                 {
 375                     /* outside the target */
 376                     a = 0x00;
 377                 }
 378                 else if (x < ICON_HILITE_WIDTH ||
 379                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
 380                          y < ICON_HILITE_WIDTH ||
 381                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
 382                 {
 383                     /* the border of the target */
 384                     a = 0x88;
 385                 }
 386                 else {
 387                     /* the background of the target */
 388                     a = 0x22;
 389                 }
 390
 391                 p->hilite_rgba[o++] =
 392                     color + (a << RrDefaultAlphaOffset);
 393             }
 394     }
 395
 396     /* * * draw everything * * */
 397
 398     /* draw the background */
 399     RrPaint(p->a_bg, p->bg, w, h);
 400
 401     /* draw the icons */
 402     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 403         const ObFocusCyclePopupTarget *target = it->data;
 404
 405         /* have to redraw the targetted icon and last targetted icon,
 406            they can pick up the hilite changes in the backgroud */
 407         if (!p->mapped || newtarget == target || p->last_target == target) {
 408             const gint row = i / icons_per_row; /* starting from 0 */
 409             const gint col = i % icons_per_row; /* starting from 0 */
 410             gint innerx, innery;
 411
 412             /* find the dimensions of the icon inside it */
 413             innerx = icons_center_x + l + (col * ICON_SIZE);
 414             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 415             innery = t + (row * ICON_SIZE);
 416             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 417
 418             /* move the icon */
 419             XMoveResizeWindow(ob_display, target->win,
 420                               innerx, innery, innerw, innerh);
 421
 422             /* get the icon from the client */
 423             p->a_icon->texture[0].data.image.alpha =
 424                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
 425             p->a_icon->texture[0].data.image.image = target->icon;
 426
 427             /* draw the icon */
 428             p->a_icon->surface.parentx = innerx;
 429             p->a_icon->surface.parenty = innery;
 430             RrPaint(p->a_icon, target->win, innerw, innerh);
 431         }
 432     }
 433
 434     /* draw the text */
 435     p->a_text->texture[0].data.text.string = newtarget->text;
 436     p->a_text->surface.parentx = textx;
 437     p->a_text->surface.parenty = texty;
 438     RrPaint(p->a_text, p->text, textw, texth);
 439
 440     p->last_target = newtarget;
 441
 442     g_free(screen_area);
 443 }
 444
 445 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
 446                             gboolean all_desktops, gboolean dock_windows,
 447                             gboolean desktop_windows)
 448 {
 449     g_assert(c != NULL);
 450
 451     /* do this stuff only when the dialog is first showing */
 452     if (!popup.mapped)
 453         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
 454                     dock_windows, desktop_windows);
 455     g_assert(popup.targets != NULL);
 456
 457     popup_render(&popup, c);
 458
 459     if (!popup.mapped) {
 460         /* show the dialog */
 461         XMapWindow(ob_display, popup.bg);
 462         XFlush(ob_display);
 463         popup.mapped = TRUE;
 464         screen_hide_desktop_popup();
 465     }
 466 }
 467
 468 void focus_cycle_popup_hide(void)
 469 {
 470     gulong ignore_start;
 471
 472     ignore_start = event_start_ignore_all_enters();
 473
 474     XUnmapWindow(ob_display, popup.bg);
 475     XFlush(ob_display);
 476
 477     event_end_ignore_all_enters(ignore_start);
 478
 479     popup.mapped = FALSE;
 480
 481     while(popup.targets) {
 482         ObFocusCyclePopupTarget *t = popup.targets->data;
 483
 484         RrImageUnref(t->icon);
 485         g_free(t->text);
 486         XDestroyWindow(ob_display, t->win);
 487         g_free(t);
 488
 489         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 490     }
 491     popup.n_targets = 0;
 492     popup.last_target = NULL;
 493
 494     g_free(popup.hilite_rgba);
 495     popup.hilite_rgba = NULL;
 496 }
 497
 498 void focus_cycle_popup_single_show(struct _ObClient *c,
 499                                    gboolean iconic_windows,
 500                                    gboolean all_desktops,
 501                                    gboolean dock_windows,
 502                                    gboolean desktop_windows)
 503 {
 504     gchar *text;
 505
 506     g_assert(c != NULL);
 507
 508     /* do this stuff only when the dialog is first showing */
 509     if (!popup.mapped) {
 510         Rect *a;
 511
 512         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
 513                     dock_windows, desktop_windows);
 514         g_assert(popup.targets == NULL);
 515
 516         /* position the popup */
 517         a = screen_physical_area_active();
 518         icon_popup_position(single_popup, CenterGravity,
 519                             a->x + a->width / 2, a->y + a->height / 2);
 520         icon_popup_height(single_popup, POPUP_HEIGHT);
 521         icon_popup_min_width(single_popup, POPUP_WIDTH);
 522         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
 523         icon_popup_text_width(single_popup, popup.maxtextw);
 524         g_free(a);
 525     }
 526
 527     text = popup_get_name(c);
 528     icon_popup_show(single_popup, text, client_icon(c));
 529     g_free(text);
 530     screen_hide_desktop_popup();
 531 }
 532
 533 void focus_cycle_popup_single_hide(void)
 534 {
 535     icon_popup_hide(single_popup);
 536 }