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 #define TEXT_BORDER 2
  39
  40 typedef struct _ObFocusCyclePopup       ObFocusCyclePopup;
  41 typedef struct _ObFocusCyclePopupTarget ObFocusCyclePopupTarget;
  42
  43 struct _ObFocusCyclePopupTarget
  44 {
  45     ObClient *client;
  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(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->osd_border_color);
 117     popup.bg = create_window(RootWindow(ob_display, ob_screen),
 118                              ob_rr_theme->obwidth,
 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                         gboolean iconic_windows, gboolean all_desktops,
 161                         gboolean dock_windows, gboolean desktop_windows)
 162 {
 163     gint maxwidth, n;
 164     GList *it;
 165
 166     g_assert(p->targets == NULL);
 167     g_assert(p->n_targets == 0);
 168
 169     /* make its width to be the width of all the possible titles */
 170
 171     /* build a list of all the valid focus targets and measure their strings,
 172        and count them */
 173     maxwidth = 0;
 174     n = 0;
 175     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
 176         ObClient *ft = it->data;
 177
 178         if (focus_cycle_target_valid(ft,
 179                                      iconic_windows,
 180                                      all_desktops,
 181                                      dock_windows,
 182                                      desktop_windows))
 183         {
 184             gchar *text = popup_get_name(ft);
 185
 186             /* measure */
 187             p->a_text->texture[0].data.text.string = text;
 188             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
 189
 190             if (!create_targets)
 191                 g_free(text);
 192             else {
 193                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
 194
 195                 t->client = ft;
 196                 t->text = text;
 197                 t->win = create_window(p->bg, 0, 0, NULL);
 198
 199                 XMapWindow(ob_display, t->win);
 200
 201                 p->targets = g_list_prepend(p->targets, t);
 202                 ++n;
 203             }
 204         }
 205     }
 206
 207     p->n_targets = n;
 208     p->maxtextw = maxwidth;
 209 }
 210
 211 static gchar *popup_get_name(ObClient *c)
 212 {
 213     ObClient *p;
 214     gchar *title;
 215     const gchar *desk = NULL;
 216     gchar *ret;
 217
 218     /* find our highest direct parent */
 219     p = client_search_top_direct_parent(c);
 220
 221     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 222         desk = screen_desktop_names[c->desktop];
 223
 224     title = c->iconic ? c->icon_title : c->title;
 225
 226     /* use the transient's parent's title/icon if we don't have one */
 227     if (p != c && title[0] == '\0')
 228         title = p->iconic ? p->icon_title : p->title;
 229
 230     if (desk)
 231         ret = g_strdup_printf("%s [%s]", title, desk);
 232     else
 233         ret = g_strdup(title);
 234
 235     return ret;
 236 }
 237
 238 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 239 {
 240     gint ml, mt, mr, mb;
 241     gint l, t, r, b;
 242     gint x, y, w, h;
 243     Rect *screen_area;
 244     gint icons_per_row;
 245     gint icon_rows;
 246     gint textx, texty, textw, texth;
 247     gint rgbax, rgbay, rgbaw, rgbah;
 248     gint icons_center_x;
 249     gint innerw, innerh;
 250     gint i;
 251     GList *it;
 252     const ObFocusCyclePopupTarget *newtarget;
 253     gint newtargetx, newtargety;
 254
 255     /* XXX find the middle monitor? */
 256     screen_area = screen_physical_area_monitor(0);
 257
 258     /* get the outside margins */
 259     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 260
 261     /* get our outside borders */
 262     l = ml + OUTSIDE_BORDER;
 263     r = mr + OUTSIDE_BORDER;
 264     t = mt + OUTSIDE_BORDER;
 265     b = mb + OUTSIDE_BORDER;
 266
 267     /* get the icon pictures' sizes */
 268     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 269     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 270
 271     /* get the width from the text and keep it within limits */
 272     w = l + r + p->maxtextw;
 273     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 274     w = MAX(w, POPUP_WIDTH); /* min width */
 275
 276     /* how many icons will fit in that row? make the width fit that */
 277     w -= l + r;
 278     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
 279     w = icons_per_row * ICON_SIZE + l + r;
 280
 281     /* how many rows do we need? */
 282     icon_rows = (p->n_targets-1) / icons_per_row + 1;
 283
 284     /* get the text dimensions */
 285     textw = w - l - r;
 286     texth = RrMinHeight(p->a_text) + TEXT_BORDER * 2;
 287
 288     /* find the height of the dialog */
 289     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER + texth);
 290
 291     /* get the position of the text */
 292     textx = l;
 293     texty = h - texth - b;
 294
 295     /* find the position for the popup (include the outer borders) */
 296     x = screen_area->x + (screen_area->width -
 297                           (w + ob_rr_theme->obwidth * 2)) / 2;
 298     y = screen_area->y + (screen_area->height -
 299                           (h + ob_rr_theme->obwidth * 2)) / 2;
 300
 301     /* get the dimensions of the target hilite texture */
 302     rgbax = ml;
 303     rgbay = mt;
 304     rgbaw = w - ml - mr;
 305     rgbah = h - mt - mb;
 306
 307     /* center the icons if there is less than one row */
 308     if (icon_rows == 1)
 309         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
 310     else
 311         icons_center_x = 0;
 312
 313     if (!p->mapped) {
 314         /* position the background but don't draw it*/
 315         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
 316
 317         /* set up the hilite texture for the background */
 318         p->a_bg->texture[0].data.rgba.width = rgbaw;
 319         p->a_bg->texture[0].data.rgba.height = rgbah;
 320         p->a_bg->texture[0].data.rgba.alpha = 0xff;
 321         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
 322         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
 323
 324         /* position the text, but don't draw it */
 325         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
 326         p->a_text->surface.parentx = textx;
 327         p->a_text->surface.parenty = texty;
 328     }
 329
 330     /* find the focused target */
 331     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 332         const ObFocusCyclePopupTarget *target = it->data;
 333         const gint row = i / icons_per_row; /* starting from 0 */
 334         const gint col = i % icons_per_row; /* starting from 0 */
 335
 336         if (target->client == c) {
 337             /* save the target */
 338             newtarget = target;
 339             newtargetx = icons_center_x + l + (col * ICON_SIZE);
 340             newtargety = t + (row * ICON_SIZE);
 341
 342             if (!p->mapped)
 343                 break; /* if we're not dimensioning, then we're done */
 344         }
 345     }
 346
 347     g_assert(newtarget != NULL);
 348
 349     /* create the hilite under the target icon */
 350     {
 351         RrPixel32 color;
 352         gint i, j, o;
 353
 354         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 355             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 356             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 357
 358         o = 0;
 359         for (i = 0; i < rgbah; ++i)
 360             for (j = 0; j < rgbaw; ++j) {
 361                 guchar a;
 362                 const gint x = j + rgbax - newtargetx;
 363                 const gint y = i + rgbay - newtargety;
 364
 365                 if (x < 0 || x >= ICON_SIZE ||
 366                     y < 0 || y >= ICON_SIZE)
 367                 {
 368                     /* outside the target */
 369                     a = 0x00;
 370                 }
 371                 else if (x < ICON_HILITE_WIDTH ||
 372                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
 373                          y < ICON_HILITE_WIDTH ||
 374                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
 375                 {
 376                     /* the border of the target */
 377                     a = 0x88;
 378                 }
 379                 else {
 380                     /* the background of the target */
 381                     a = 0x22;
 382                 }
 383
 384                 p->hilite_rgba[o++] =
 385                     color + (a << RrDefaultAlphaOffset);
 386             }
 387     }
 388
 389     /* * * draw everything * * */
 390
 391     /* draw the background */
 392     RrPaint(p->a_bg, p->bg, w, h);
 393
 394     /* draw the icons */
 395     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 396         const ObFocusCyclePopupTarget *target = it->data;
 397
 398         /* have to redraw the targetted icon and last targetted icon,
 399            they can pick up the hilite changes in the backgroud */
 400         if (!p->mapped || newtarget == target || p->last_target == target) {
 401             const ObClientIcon *icon;
 402             const gint row = i / icons_per_row; /* starting from 0 */
 403             const gint col = i % icons_per_row; /* starting from 0 */
 404             gint innerx, innery;
 405
 406             /* find the dimensions of the icon inside it */
 407             innerx = icons_center_x + l + (col * ICON_SIZE);
 408             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 409             innery = t + (row * ICON_SIZE);
 410             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 411
 412             /* move the icon */
 413             XMoveResizeWindow(ob_display, target->win,
 414                               innerx, innery, innerw, innerh);
 415
 416             /* get the icon from the client */
 417             icon = client_icon(target->client, innerw, innerh);
 418             p->a_icon->texture[0].data.rgba.width = icon->width;
 419             p->a_icon->texture[0].data.rgba.height = icon->height;
 420             p->a_icon->texture[0].data.rgba.alpha =
 421                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
 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         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
 449                     dock_windows, desktop_windows);
 450     g_assert(popup.targets != NULL);
 451
 452     popup_render(&popup, c);
 453
 454     if (!popup.mapped) {
 455         /* show the dialog */
 456         XMapWindow(ob_display, popup.bg);
 457         XFlush(ob_display);
 458         popup.mapped = TRUE;
 459     }
 460 }
 461
 462 void focus_cycle_popup_hide()
 463 {
 464     gulong ignore_start;
 465
 466     ignore_start = event_start_ignore_all_enters();
 467
 468     XUnmapWindow(ob_display, popup.bg);
 469     XFlush(ob_display);
 470
 471     event_end_ignore_all_enters(ignore_start);
 472
 473     popup.mapped = FALSE;
 474
 475     while(popup.targets) {
 476         ObFocusCyclePopupTarget *t = popup.targets->data;
 477
 478         g_free(t->text);
 479         XDestroyWindow(ob_display, t->win);
 480
 481         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 482     }
 483     popup.n_targets = 0;
 484     popup.last_target = NULL;
 485
 486     g_free(popup.hilite_rgba);
 487     popup.hilite_rgba = NULL;
 488 }
 489
 490 void focus_cycle_popup_single_show(struct _ObClient *c,
 491                                    gboolean iconic_windows,
 492                                    gboolean all_desktops,
 493                                    gboolean dock_windows,
 494                                    gboolean desktop_windows)
 495 {
 496     gchar *text;
 497
 498     g_assert(c != NULL);
 499
 500     /* do this stuff only when the dialog is first showing */
 501     if (!popup.mapped) {
 502         Rect *a;
 503
 504         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
 505                     dock_windows, desktop_windows);
 506         g_assert(popup.targets == NULL);
 507
 508         /* position the popup */
 509         a = screen_physical_area_monitor(0);
 510         icon_popup_position(single_popup, CenterGravity,
 511                             a->x + a->width / 2, a->y + a->height / 2);
 512         icon_popup_height(single_popup, POPUP_HEIGHT);
 513         icon_popup_min_width(single_popup, POPUP_WIDTH);
 514         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
 515         icon_popup_text_width(single_popup, popup.maxtextw);
 516     }
 517
 518     text = popup_get_name(c);
 519     icon_popup_show(single_popup, text, client_icon(c, ICON_SIZE, ICON_SIZE));
 520     g_free(text);
 521 }
 522
 523 void focus_cycle_popup_single_hide()
 524 {
 525     icon_popup_hide(single_popup);
 526 }