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 "focus_cycle.h"
  26 #include "openbox.h"
  27 #include "window.h"
  28 #include "event.h"
  29 #include "render/render.h"
  30
  31 #include <X11/Xlib.h>
  32 #include <glib.h>
  33
  34 #define ICON_SIZE 40
  35 #define ICON_HILITE_WIDTH 2
  36 #define ICON_HILITE_MARGIN 1
  37 #define OUTSIDE_BORDER 3
  38
  39 typedef struct _ObFocusCyclePopup       ObFocusCyclePopup;
  40 typedef struct _ObFocusCyclePopupTarget ObFocusCyclePopupTarget;
  41
  42 struct _ObFocusCyclePopupTarget
  43 {
  44     ObClient *client;
  45     gchar *text;
  46     Window win;
  47 };
  48
  49 struct _ObFocusCyclePopup
  50 {
  51     ObWindow obwin;
  52     Window bg;
  53
  54     Window text;
  55
  56     GList *targets;
  57     gint n_targets;
  58
  59     const ObFocusCyclePopupTarget *last_target;
  60
  61     gint maxtextw;
  62
  63     RrAppearance *a_bg;
  64     RrAppearance *a_text;
  65     RrAppearance *a_icon;
  66
  67     RrPixel32 *hilite_rgba;
  68
  69     gboolean mapped;
  70 };
  71
  72 /*! This popup shows all possible windows */
  73 static ObFocusCyclePopup popup;
  74 /*! This popup shows a single window */
  75 static ObIconPopup *single_popup;
  76
  77 static gboolean cycle_iconic_windows;
  78 static gboolean cycle_all_desktops;
  79 static gboolean cycle_dock_windows;
  80 static gboolean cycle_desktop_windows;
  81
  82 static gchar *popup_get_name (ObClient *c);
  83 static void   popup_setup    (ObFocusCyclePopup *p,
  84                               gboolean create_targets);
  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(TRUE);
 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     popup.a_icon->texture[0].type = RR_TEXTURE_RGBA;
 111
 112     RrAppearanceAddTextures(popup.a_bg, 1);
 113     popup.a_bg->texture[0].type = RR_TEXTURE_RGBA;
 114
 115     attrib.override_redirect = True;
 116     attrib.border_pixel=RrColorPixel(ob_rr_theme->frame_focused_border_color);
 117     popup.bg = create_window(RootWindow(ob_display, ob_screen),
 118                              ob_rr_theme->fbwidth,
 119                              CWOverrideRedirect | CWBorderPixel, &attrib);
 120
 121     popup.text = create_window(popup.bg, 0, 0, NULL);
 122
 123     popup.targets = NULL;
 124     popup.n_targets = 0;
 125     popup.last_target = NULL;
 126
 127     popup.hilite_rgba = NULL;
 128
 129     XMapWindow(ob_display, popup.text);
 130
 131     stacking_add(INTERNAL_AS_WINDOW(&popup));
 132 }
 133
 134 void focus_cycle_popup_shutdown(gboolean reconfig)
 135 {
 136     icon_popup_free(single_popup);
 137
 138     stacking_remove(INTERNAL_AS_WINDOW(&popup));
 139
 140     while(popup.targets) {
 141         ObFocusCyclePopupTarget *t = popup.targets->data;
 142
 143         g_free(t->text);
 144         XDestroyWindow(ob_display, t->win);
 145
 146         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 147     }
 148
 149     g_free(popup.hilite_rgba);
 150
 151     XDestroyWindow(ob_display, popup.text);
 152     XDestroyWindow(ob_display, popup.bg);
 153
 154     RrAppearanceFree(popup.a_icon);
 155     RrAppearanceFree(popup.a_text);
 156     RrAppearanceFree(popup.a_bg);
 157 }
 158
 159 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets)
 160 {
 161     gint maxwidth, n;
 162     GList *it;
 163
 164     g_assert(p->targets == NULL);
 165     g_assert(p->n_targets == 0);
 166
 167     /* make its width to be the width of all the possible titles */
 168
 169     /* build a list of all the valid focus targets and measure their strings,
 170        and count them */
 171     maxwidth = 0;
 172     n = 0;
 173     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
 174         ObClient *ft = it->data;
 175
 176         if (focus_cycle_target_valid(ft,
 177                                      cycle_iconic_windows,
 178                                      cycle_all_desktops,
 179                                      cycle_dock_windows,
 180                                      cycle_desktop_windows))
 181         {
 182             gchar *text = popup_get_name(ft);
 183
 184             /* measure */
 185             p->a_text->texture[0].data.text.string = text;
 186             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
 187
 188             if (!create_targets)
 189                 g_free(text);
 190             else {
 191                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
 192
 193                 t->client = ft;
 194                 t->text = text;
 195                 t->win = create_window(p->bg, 0, 0, NULL);
 196
 197                 XMapWindow(ob_display, t->win);
 198
 199                 p->targets = g_list_prepend(p->targets, t);
 200                 ++n;
 201             }
 202         }
 203     }
 204
 205     p->n_targets = n;
 206     p->maxtextw = maxwidth;
 207 }
 208
 209 static gchar *popup_get_name(ObClient *c)
 210 {
 211     ObClient *p;
 212     gchar *title = NULL;
 213     const gchar *desk = NULL;
 214     gchar *ret;
 215
 216     /* find our highest direct parent, including non-normal windows */
 217     for (p = c; p->transient_for && p->transient_for != OB_TRAN_GROUP;
 218          p = p->transient_for);
 219
 220     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 221         desk = screen_desktop_names[c->desktop];
 222
 223     /* use the transient's parent's title/icon if we don't have one */
 224     if (p != c && !strcmp("", (c->iconic ? c->icon_title : c->title)))
 225         title = g_strdup(p->iconic ? p->icon_title : p->title);
 226
 227     if (title == NULL)
 228         title = g_strdup(c->iconic ? c->icon_title : c->title);
 229
 230     if (desk)
 231         ret = g_strdup_printf("%s [%s]", title, desk);
 232     else {
 233         ret = title;
 234         title = NULL;
 235     }
 236     g_free(title);
 237
 238     return ret;
 239 }
 240
 241 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 242 {
 243     gint ml, mt, mr, mb;
 244     gint l, t, r, b;
 245     gint x, y, w, h;
 246     Rect *screen_area;
 247     gint icons_per_row;
 248     gint icon_rows;
 249     gint textx, texty, textw, texth;
 250     gint rgbax, rgbay, rgbaw, rgbah;
 251     gint icons_center_x;
 252     gint innerw, innerh;
 253     gint i;
 254     GList *it;
 255     const ObFocusCyclePopupTarget *newtarget;
 256     gint newtargetx, newtargety;
 257
 258     /* XXX find the middle monitor? */
 259     screen_area = screen_physical_area_monitor(0);
 260
 261     /* get the outside margins */
 262     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 263
 264     /* get our outside borders */
 265     l = ml + OUTSIDE_BORDER;
 266     r = mr + OUTSIDE_BORDER;
 267     t = mt + OUTSIDE_BORDER;
 268     b = mb + OUTSIDE_BORDER;
 269
 270     /* get the icon pictures' sizes */
 271     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 272     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 273
 274     /* get the width from the text and keep it within limits */
 275     w = l + r + p->maxtextw;
 276     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 277     w = MAX(w, POPUP_WIDTH); /* min width */
 278
 279     /* how many icons will fit in that row? make the width fit that */
 280     w -= l + r;
 281     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
 282     w = icons_per_row * ICON_SIZE + l + r;
 283
 284     /* how many rows do we need? */
 285     icon_rows = (p->n_targets-1) / icons_per_row + 1;
 286
 287     /* get the text dimensions */
 288     textw = w - l - r;
 289     texth = RrMinHeight(p->a_text);
 290
 291     /* find the height of the dialog */
 292     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER*2 + texth);
 293
 294     /* get the position of the text */
 295     textx = l;
 296     texty = h - texth - b;
 297
 298     /* find the position for the popup (include the outer borders) */
 299     x = screen_area->x + (screen_area->width -
 300                           (w + ob_rr_theme->fbwidth * 2)) / 2;
 301     y = screen_area->y + (screen_area->height -
 302                           (h + ob_rr_theme->fbwidth * 2)) / 2;
 303
 304     /* get the dimensions of the target hilite texture */
 305     rgbax = ml;
 306     rgbay = mt;
 307     rgbaw = w - ml - mr;
 308     rgbah = h - mt - mb;
 309
 310     /* center the icons if there is less than one row */
 311     if (icon_rows == 1)
 312         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
 313     else
 314         icons_center_x = 0;
 315
 316     if (!p->mapped) {
 317         /* position the background but don't draw it*/
 318         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
 319
 320         /* set up the hilite texture for the background */
 321         p->a_bg->texture[0].data.rgba.width = rgbaw;
 322         p->a_bg->texture[0].data.rgba.height = rgbah;
 323         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
 324         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
 325
 326         /* position the text, but don't draw it */
 327         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
 328         p->a_text->surface.parentx = textx;
 329         p->a_text->surface.parenty = texty;
 330     }
 331
 332     /* find the focused target */
 333     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 334         const ObFocusCyclePopupTarget *target = it->data;
 335         const gint row = i / icons_per_row; /* starting from 0 */
 336         const gint col = i % icons_per_row; /* starting from 0 */
 337
 338         if (target->client == c) {
 339             /* save the target */
 340             newtarget = target;
 341             newtargetx = icons_center_x + l + (col * ICON_SIZE);
 342             newtargety = t + (row * ICON_SIZE);
 343
 344             if (!p->mapped)
 345                 break; /* if we're not dimensioning, then we're done */
 346         }
 347     }
 348
 349     g_assert(newtarget != NULL);
 350
 351     /* create the hilite under the target icon */
 352     {
 353         RrPixel32 color;
 354         gint i, j, o;
 355
 356         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 357             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 358             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 359
 360         o = 0;
 361         for (i = 0; i < rgbah; ++i)
 362             for (j = 0; j < rgbaw; ++j) {
 363                 guchar a;
 364                 const gint x = j + rgbax - newtargetx;
 365                 const gint y = i + rgbay - newtargety;
 366
 367                 if (x < 0 || x >= ICON_SIZE ||
 368                     y < 0 || y >= ICON_SIZE)
 369                 {
 370                     /* outside the target */
 371                     a = 0x00;
 372                 }
 373                 else if (x < ICON_HILITE_WIDTH ||
 374                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
 375                          y < ICON_HILITE_WIDTH ||
 376                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
 377                 {
 378                     /* the border of the target */
 379                     a = 0x88;
 380                 }
 381                 else {
 382                     /* the background of the target */
 383                     a = 0x22;
 384                 }
 385
 386                 p->hilite_rgba[o++] =
 387                     color + (a << RrDefaultAlphaOffset);
 388             }
 389     }
 390
 391     /* * * draw everything * * */
 392
 393     /* draw the background */
 394     RrPaint(p->a_bg, p->bg, w, h);
 395
 396     /* draw the icons */
 397     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 398         const ObFocusCyclePopupTarget *target = it->data;
 399
 400         /* have to redraw the targetted icon and last targetted icon,
 401            they can pick up the hilite changes in the backgroud */
 402         if (!p->mapped || newtarget == target || p->last_target == target) {
 403             const ObClientIcon *icon;
 404             const gint row = i / icons_per_row; /* starting from 0 */
 405             const gint col = i % icons_per_row; /* starting from 0 */
 406             gint innerx, innery;
 407
 408             /* find the dimensions of the icon inside it */
 409             innerx = icons_center_x + l + (col * ICON_SIZE);
 410             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 411             innery = t + (row * ICON_SIZE);
 412             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 413
 414             /* move the icon */
 415             XMoveResizeWindow(ob_display, target->win,
 416                               innerx, innery, innerw, innerh);
 417
 418             /* get the icon from the client */
 419             icon = client_icon(target->client, innerw, innerh);
 420             p->a_icon->texture[0].data.rgba.width = icon->width;
 421             p->a_icon->texture[0].data.rgba.height = icon->height;
 422             p->a_icon->texture[0].data.rgba.data = icon->data;
 423
 424             /* draw the icon */
 425             p->a_icon->surface.parentx = innerx;
 426             p->a_icon->surface.parenty = innery;
 427             RrPaint(p->a_icon, target->win, innerw, innerh);
 428         }
 429     }
 430
 431     /* draw the text */
 432     p->a_text->texture[0].data.text.string = newtarget->text;
 433     p->a_text->surface.parentx = textx;
 434     p->a_text->surface.parenty = texty;
 435     RrPaint(p->a_text, p->text, textw, texth);
 436
 437     p->last_target = newtarget;
 438 }
 439
 440 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
 441                             gboolean all_desktops, gboolean dock_windows,
 442                             gboolean desktop_windows)
 443 {
 444     g_assert(c != NULL);
 445
 446     /* do this stuff only when the dialog is first showing */
 447     if (!popup.mapped) {
 448         cycle_iconic_windows = iconic_windows;
 449         cycle_all_desktops = all_desktops;
 450         cycle_dock_windows = dock_windows;
 451         cycle_desktop_windows = desktop_windows;
 452         popup_setup(&popup, TRUE);
 453     }
 454     g_assert(popup.targets != NULL);
 455
 456     popup_render(&popup, c);
 457
 458     if (!popup.mapped) {
 459         /* show the dialog */
 460         XMapWindow(ob_display, popup.bg);
 461         XFlush(ob_display);
 462         popup.mapped = TRUE;
 463     }
 464 }
 465
 466 void focus_cycle_popup_hide()
 467 {
 468     XUnmapWindow(ob_display, popup.bg);
 469     XFlush(ob_display);
 470
 471     popup.mapped = FALSE;
 472
 473     /* kill enter events cause by this unmapping */
 474     event_ignore_all_queued_enters();
 475
 476     while(popup.targets) {
 477         ObFocusCyclePopupTarget *t = popup.targets->data;
 478
 479         g_free(t->text);
 480         XDestroyWindow(ob_display, t->win);
 481
 482         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 483     }
 484     popup.n_targets = 0;
 485     popup.last_target = NULL;
 486
 487     g_free(popup.hilite_rgba);
 488     popup.hilite_rgba = NULL;
 489 }
 490
 491 void focus_cycle_popup_single_show(struct _ObClient *c,
 492                                    gboolean iconic_windows,
 493                                    gboolean all_desktops,
 494                                    gboolean dock_windows,
 495                                    gboolean desktop_windows)
 496 {
 497     gchar *text;
 498
 499     g_assert(c != NULL);
 500
 501     /* do this stuff only when the dialog is first showing */
 502     if (!popup.mapped) {
 503         Rect *a;
 504
 505         cycle_iconic_windows = iconic_windows;
 506         cycle_all_desktops = all_desktops;
 507         cycle_dock_windows = dock_windows;
 508         cycle_desktop_windows = desktop_windows;
 509         popup_setup(&popup, FALSE);
 510         g_assert(popup.targets == NULL);
 511
 512         /* position the popup */
 513         a = screen_physical_area_monitor(0);
 514         icon_popup_position(single_popup, CenterGravity,
 515                             a->x + a->width / 2, a->y + a->height / 2);
 516         icon_popup_height(single_popup, POPUP_HEIGHT);
 517         icon_popup_min_width(single_popup, POPUP_WIDTH);
 518         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
 519         icon_popup_text_width(single_popup, popup.maxtextw);
 520     }
 521
 522     text = popup_get_name(c);
 523     icon_popup_show(single_popup, text, client_icon(c, ICON_SIZE, ICON_SIZE));
 524     g_free(text);
 525 }
 526
 527 void focus_cycle_popup_single_hide()
 528 {
 529     icon_popup_hide(single_popup);
 530 }