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 gchar *popup_get_name (ObClient *c);
  78 static void   popup_setup    (ObFocusCyclePopup *p,
  79                               gboolean create_targets,
  80                               gboolean iconic_windows,
  81                               gboolean all_desktops,
  82                               gboolean dock_windows,
  83                               gboolean desktop_windows);
  84 static void   popup_render   (ObFocusCyclePopup *p,
  85                               const ObClient *c);
  86
  87 static Window create_window(Window parent, guint bwidth, gulong mask,
  88                             XSetWindowAttributes *attr)
  89 {
  90     return XCreateWindow(ob_display, parent, 0, 0, 1, 1, bwidth,
  91                          RrDepth(ob_rr_inst), InputOutput,
  92                          RrVisual(ob_rr_inst), mask, attr);
  93 }
  94
  95 void focus_cycle_popup_startup(gboolean reconfig)
  96 {
  97     XSetWindowAttributes attrib;
  98
  99     single_popup = icon_popup_new(TRUE);
 100
 101     popup.obwin.type = Window_Internal;
 102     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 103     popup.a_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
 104     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear_tex);
 105
 106     popup.a_text->surface.parent = popup.a_bg;
 107     popup.a_icon->surface.parent = popup.a_bg;
 108
 109     popup.a_icon->texture[0].type = RR_TEXTURE_RGBA;
 110
 111     RrAppearanceAddTextures(popup.a_bg, 1);
 112     popup.a_bg->texture[0].type = RR_TEXTURE_RGBA;
 113
 114     attrib.override_redirect = True;
 115     attrib.border_pixel=RrColorPixel(ob_rr_theme->frame_focused_border_color);
 116     popup.bg = create_window(RootWindow(ob_display, ob_screen),
 117                              ob_rr_theme->fbwidth,
 118                              CWOverrideRedirect | CWBorderPixel, &attrib);
 119
 120     popup.text = create_window(popup.bg, 0, 0, NULL);
 121
 122     popup.targets = NULL;
 123     popup.n_targets = 0;
 124     popup.last_target = NULL;
 125
 126     popup.hilite_rgba = NULL;
 127
 128     XMapWindow(ob_display, popup.text);
 129
 130     stacking_add(INTERNAL_AS_WINDOW(&popup));
 131 }
 132
 133 void focus_cycle_popup_shutdown(gboolean reconfig)
 134 {
 135     icon_popup_free(single_popup);
 136
 137     stacking_remove(INTERNAL_AS_WINDOW(&popup));
 138
 139     while(popup.targets) {
 140         ObFocusCyclePopupTarget *t = popup.targets->data;
 141
 142         g_free(t->text);
 143         XDestroyWindow(ob_display, t->win);
 144
 145         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 146     }
 147
 148     g_free(popup.hilite_rgba);
 149
 150     XDestroyWindow(ob_display, popup.text);
 151     XDestroyWindow(ob_display, popup.bg);
 152
 153     RrAppearanceFree(popup.a_icon);
 154     RrAppearanceFree(popup.a_text);
 155     RrAppearanceFree(popup.a_bg);
 156 }
 157
 158 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets,
 159                         gboolean iconic_windows, gboolean all_desktops,
 160                         gboolean dock_windows, gboolean desktop_windows)
 161 {
 162     gint maxwidth, n;
 163     GList *it;
 164
 165     g_assert(p->targets == NULL);
 166     g_assert(p->n_targets == 0);
 167
 168     /* make its width to be the width of all the possible titles */
 169
 170     /* build a list of all the valid focus targets and measure their strings,
 171        and count them */
 172     maxwidth = 0;
 173     n = 0;
 174     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
 175         ObClient *ft = it->data;
 176
 177         if (focus_cycle_target_valid(ft,
 178                                      iconic_windows,
 179                                      all_desktops,
 180                                      dock_windows,
 181                                      desktop_windows))
 182         {
 183             gchar *text = popup_get_name(ft);
 184
 185             /* measure */
 186             p->a_text->texture[0].data.text.string = text;
 187             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
 188
 189             if (!create_targets)
 190                 g_free(text);
 191             else {
 192                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
 193
 194                 t->client = ft;
 195                 t->text = text;
 196                 t->win = create_window(p->bg, 0, 0, NULL);
 197
 198                 XMapWindow(ob_display, t->win);
 199
 200                 p->targets = g_list_prepend(p->targets, t);
 201                 ++n;
 202             }
 203         }
 204     }
 205
 206     p->n_targets = n;
 207     p->maxtextw = maxwidth;
 208 }
 209
 210 static gchar *popup_get_name(ObClient *c)
 211 {
 212     ObClient *p;
 213     gchar *title = NULL;
 214     const gchar *desk = NULL;
 215     gchar *ret;
 216
 217     /* find our highest direct parent, including non-normal windows */
 218     for (p = c; p->transient_for && p->transient_for != OB_TRAN_GROUP;
 219          p = p->transient_for);
 220
 221     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 222         desk = screen_desktop_names[c->desktop];
 223
 224     /* use the transient's parent's title/icon if we don't have one */
 225     if (p != c && !strcmp("", (c->iconic ? c->icon_title : c->title)))
 226         title = g_strdup(p->iconic ? p->icon_title : p->title);
 227
 228     if (title == NULL)
 229         title = g_strdup(c->iconic ? c->icon_title : c->title);
 230
 231     if (desk)
 232         ret = g_strdup_printf("%s [%s]", title, desk);
 233     else {
 234         ret = title;
 235         title = NULL;
 236     }
 237     g_free(title);
 238
 239     return ret;
 240 }
 241
 242 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 243 {
 244     gint ml, mt, mr, mb;
 245     gint l, t, r, b;
 246     gint x, y, w, h;
 247     Rect *screen_area;
 248     gint icons_per_row;
 249     gint icon_rows;
 250     gint textx, texty, textw, texth;
 251     gint rgbax, rgbay, rgbaw, rgbah;
 252     gint icons_center_x;
 253     gint innerw, innerh;
 254     gint i;
 255     GList *it;
 256     const ObFocusCyclePopupTarget *newtarget;
 257     gint newtargetx, newtargety;
 258
 259     /* XXX find the middle monitor? */
 260     screen_area = screen_physical_area_monitor(0);
 261
 262     /* get the outside margins */
 263     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 264
 265     /* get our outside borders */
 266     l = ml + OUTSIDE_BORDER;
 267     r = mr + OUTSIDE_BORDER;
 268     t = mt + OUTSIDE_BORDER;
 269     b = mb + OUTSIDE_BORDER;
 270
 271     /* get the icon pictures' sizes */
 272     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 273     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 274
 275     /* get the width from the text and keep it within limits */
 276     w = l + r + p->maxtextw;
 277     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 278     w = MAX(w, POPUP_WIDTH); /* min width */
 279
 280     /* how many icons will fit in that row? make the width fit that */
 281     w -= l + r;
 282     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
 283     w = icons_per_row * ICON_SIZE + l + r;
 284
 285     /* how many rows do we need? */
 286     icon_rows = (p->n_targets-1) / icons_per_row + 1;
 287
 288     /* get the text dimensions */
 289     textw = w - l - r;
 290     texth = RrMinHeight(p->a_text);
 291
 292     /* find the height of the dialog */
 293     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER*2 + texth);
 294
 295     /* get the position of the text */
 296     textx = l;
 297     texty = h - texth - b;
 298
 299     /* find the position for the popup (include the outer borders) */
 300     x = screen_area->x + (screen_area->width -
 301                           (w + ob_rr_theme->fbwidth * 2)) / 2;
 302     y = screen_area->y + (screen_area->height -
 303                           (h + ob_rr_theme->fbwidth * 2)) / 2;
 304
 305     /* get the dimensions of the target hilite texture */
 306     rgbax = ml;
 307     rgbay = mt;
 308     rgbaw = w - ml - mr;
 309     rgbah = h - mt - mb;
 310
 311     /* center the icons if there is less than one row */
 312     if (icon_rows == 1)
 313         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
 314     else
 315         icons_center_x = 0;
 316
 317     if (!p->mapped) {
 318         /* position the background but don't draw it*/
 319         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
 320
 321         /* set up the hilite texture for the background */
 322         p->a_bg->texture[0].data.rgba.width = rgbaw;
 323         p->a_bg->texture[0].data.rgba.height = rgbah;
 324         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
 325         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
 326
 327         /* position the text, but don't draw it */
 328         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
 329         p->a_text->surface.parentx = textx;
 330         p->a_text->surface.parenty = texty;
 331     }
 332
 333     /* find the focused target */
 334     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 335         const ObFocusCyclePopupTarget *target = it->data;
 336         const gint row = i / icons_per_row; /* starting from 0 */
 337         const gint col = i % icons_per_row; /* starting from 0 */
 338
 339         if (target->client == c) {
 340             /* save the target */
 341             newtarget = target;
 342             newtargetx = icons_center_x + l + (col * ICON_SIZE);
 343             newtargety = t + (row * ICON_SIZE);
 344
 345             if (!p->mapped)
 346                 break; /* if we're not dimensioning, then we're done */
 347         }
 348     }
 349
 350     g_assert(newtarget != NULL);
 351
 352     /* create the hilite under the target icon */
 353     {
 354         RrPixel32 color;
 355         gint i, j, o;
 356
 357         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 358             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 359             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 360
 361         o = 0;
 362         for (i = 0; i < rgbah; ++i)
 363             for (j = 0; j < rgbaw; ++j) {
 364                 guchar a;
 365                 const gint x = j + rgbax - newtargetx;
 366                 const gint y = i + rgbay - newtargety;
 367
 368                 if (x < 0 || x >= ICON_SIZE ||
 369                     y < 0 || y >= ICON_SIZE)
 370                 {
 371                     /* outside the target */
 372                     a = 0x00;
 373                 }
 374                 else if (x < ICON_HILITE_WIDTH ||
 375                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
 376                          y < ICON_HILITE_WIDTH ||
 377                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
 378                 {
 379                     /* the border of the target */
 380                     a = 0x88;
 381                 }
 382                 else {
 383                     /* the background of the target */
 384                     a = 0x22;
 385                 }
 386
 387                 p->hilite_rgba[o++] =
 388                     color + (a << RrDefaultAlphaOffset);
 389             }
 390     }
 391
 392     /* * * draw everything * * */
 393
 394     /* draw the background */
 395     RrPaint(p->a_bg, p->bg, w, h);
 396
 397     /* draw the icons */
 398     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 399         const ObFocusCyclePopupTarget *target = it->data;
 400
 401         /* have to redraw the targetted icon and last targetted icon,
 402            they can pick up the hilite changes in the backgroud */
 403         if (!p->mapped || newtarget == target || p->last_target == target) {
 404             const ObClientIcon *icon;
 405             const gint row = i / icons_per_row; /* starting from 0 */
 406             const gint col = i % icons_per_row; /* starting from 0 */
 407             gint innerx, innery;
 408             RrPixel32 *icon_data;
 409
 410             /* find the dimensions of the icon inside it */
 411             innerx = icons_center_x + l + (col * ICON_SIZE);
 412             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 413             innery = t + (row * ICON_SIZE);
 414             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 415
 416             /* move the icon */
 417             XMoveResizeWindow(ob_display, target->win,
 418                               innerx, innery, innerw, innerh);
 419
 420             /* get the icon from the client */
 421             icon = client_icon(target->client, innerw, innerh);
 422             p->a_icon->texture[0].data.rgba.width = icon->width;
 423             p->a_icon->texture[0].data.rgba.height = icon->height;
 424             if (target->client->iconic) {
 425                 /* fade iconic windows */
 426                 gint i;
 427                 RrPixel32 *d, *s;
 428
 429                 icon_data = g_new(RrPixel32, icon->width * icon->height);
 430
 431                 s = icon->data;
 432                 d = icon_data;
 433                 for (i = 0; i < icon->width * icon->height; ++i, ++d, ++s) {
 434                      /* 7/16 opacity */
 435                     gint a = ((*s >> RrDefaultAlphaOffset) & 0xff);
 436                     *d = *s - (a << RrDefaultAlphaOffset) +
 437                         (((a>>1) - (a>>4)) << RrDefaultAlphaOffset);
 438                 }
 439
 440             } else
 441                 icon_data = icon->data;
 442             p->a_icon->texture[0].data.rgba.data = icon_data;
 443
 444             /* draw the icon */
 445             p->a_icon->surface.parentx = innerx;
 446             p->a_icon->surface.parenty = innery;
 447             RrPaint(p->a_icon, target->win, innerw, innerh);
 448
 449             if (target->client->iconic)
 450                 g_free(icon_data);
 451         }
 452     }
 453
 454     /* draw the text */
 455     p->a_text->texture[0].data.text.string = newtarget->text;
 456     p->a_text->surface.parentx = textx;
 457     p->a_text->surface.parenty = texty;
 458     RrPaint(p->a_text, p->text, textw, texth);
 459
 460     p->last_target = newtarget;
 461 }
 462
 463 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
 464                             gboolean all_desktops, gboolean dock_windows,
 465                             gboolean desktop_windows)
 466 {
 467     g_assert(c != NULL);
 468
 469     /* do this stuff only when the dialog is first showing */
 470     if (!popup.mapped)
 471         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
 472                     dock_windows, desktop_windows);
 473     g_assert(popup.targets != NULL);
 474
 475     popup_render(&popup, c);
 476
 477     if (!popup.mapped) {
 478         /* show the dialog */
 479         XMapWindow(ob_display, popup.bg);
 480         XFlush(ob_display);
 481         popup.mapped = TRUE;
 482     }
 483 }
 484
 485 void focus_cycle_popup_hide()
 486 {
 487     XUnmapWindow(ob_display, popup.bg);
 488     XFlush(ob_display);
 489
 490     popup.mapped = FALSE;
 491
 492     /* kill enter events cause by this unmapping */
 493     event_ignore_all_queued_enters();
 494
 495     while(popup.targets) {
 496         ObFocusCyclePopupTarget *t = popup.targets->data;
 497
 498         g_free(t->text);
 499         XDestroyWindow(ob_display, t->win);
 500
 501         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 502     }
 503     popup.n_targets = 0;
 504     popup.last_target = NULL;
 505
 506     g_free(popup.hilite_rgba);
 507     popup.hilite_rgba = NULL;
 508 }
 509
 510 void focus_cycle_popup_single_show(struct _ObClient *c,
 511                                    gboolean iconic_windows,
 512                                    gboolean all_desktops,
 513                                    gboolean dock_windows,
 514                                    gboolean desktop_windows)
 515 {
 516     gchar *text;
 517
 518     g_assert(c != NULL);
 519
 520     /* do this stuff only when the dialog is first showing */
 521     if (!popup.mapped) {
 522         Rect *a;
 523
 524         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
 525                     dock_windows, desktop_windows);
 526         g_assert(popup.targets == NULL);
 527
 528         /* position the popup */
 529         a = screen_physical_area_monitor(0);
 530         icon_popup_position(single_popup, CenterGravity,
 531                             a->x + a->width / 2, a->y + a->height / 2);
 532         icon_popup_height(single_popup, POPUP_HEIGHT);
 533         icon_popup_min_width(single_popup, POPUP_WIDTH);
 534         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
 535         icon_popup_text_width(single_popup, popup.maxtextw);
 536     }
 537
 538     text = popup_get_name(c);
 539     icon_popup_show(single_popup, text, client_icon(c, ICON_SIZE, ICON_SIZE));
 540     g_free(text);
 541 }
 542
 543 void focus_cycle_popup_single_hide()
 544 {
 545     icon_popup_hide(single_popup);
 546 }