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 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();
 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->osd_border_color);
 116     popup.bg = create_window(RootWindow(ob_display, ob_screen),
 117                              ob_rr_theme->obwidth,
 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_valid_target(ft, TRUE,
 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;
 214     const gchar *desk = NULL;
 215     gchar *ret;
 216
 217     /* find our highest direct parent */
 218     p = client_search_top_direct_parent(c);
 219
 220     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 221         desk = screen_desktop_names[c->desktop];
 222
 223     title = c->iconic ? c->icon_title : c->title;
 224
 225     /* use the transient's parent's title/icon if we don't have one */
 226     if (p != c && title[0] == '\0')
 227         title = p->iconic ? p->icon_title : p->title;
 228
 229     if (desk)
 230         ret = g_strdup_printf("%s [%s]", title, desk);
 231     else
 232         ret = g_strdup(title);
 233
 234     return ret;
 235 }
 236
 237 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 238 {
 239     gint ml, mt, mr, mb;
 240     gint l, t, r, b;
 241     gint x, y, w, h;
 242     Rect *screen_area = NULL;
 243     gint icons_per_row;
 244     gint icon_rows;
 245     gint textx, texty, textw, texth;
 246     gint rgbax, rgbay, rgbaw, rgbah;
 247     gint icons_center_x;
 248     gint innerw, innerh;
 249     gint i;
 250     GList *it;
 251     const ObFocusCyclePopupTarget *newtarget;
 252     gint newtargetx, newtargety;
 253
 254     screen_area = screen_physical_area_active();
 255
 256     /* get the outside margins */
 257     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 258
 259     /* get our outside borders */
 260     l = ml + OUTSIDE_BORDER;
 261     r = mr + OUTSIDE_BORDER;
 262     t = mt + OUTSIDE_BORDER;
 263     b = mb + OUTSIDE_BORDER;
 264
 265     /* get the icon pictures' sizes */
 266     innerw = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 267     innerh = ICON_SIZE - (ICON_HILITE_WIDTH + ICON_HILITE_MARGIN) * 2;
 268
 269     /* get the width from the text and keep it within limits */
 270     w = l + r + p->maxtextw;
 271     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 272     w = MAX(w, POPUP_WIDTH); /* min width */
 273
 274     /* how many icons will fit in that row? make the width fit that */
 275     w -= l + r;
 276     icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
 277     w = icons_per_row * ICON_SIZE + l + r;
 278
 279     /* how many rows do we need? */
 280     icon_rows = (p->n_targets-1) / icons_per_row + 1;
 281
 282     /* get the text dimensions */
 283     textw = w - l - r;
 284     texth = RrMinHeight(p->a_text) + TEXT_BORDER * 2;
 285
 286     /* find the height of the dialog */
 287     h = t + b + (icon_rows * ICON_SIZE) + (OUTSIDE_BORDER + texth);
 288
 289     /* get the position of the text */
 290     textx = l;
 291     texty = h - texth - b;
 292
 293     /* find the position for the popup (include the outer borders) */
 294     x = screen_area->x + (screen_area->width -
 295                           (w + ob_rr_theme->obwidth * 2)) / 2;
 296     y = screen_area->y + (screen_area->height -
 297                           (h + ob_rr_theme->obwidth * 2)) / 2;
 298
 299     /* get the dimensions of the target hilite texture */
 300     rgbax = ml;
 301     rgbay = mt;
 302     rgbaw = w - ml - mr;
 303     rgbah = h - mt - mb;
 304
 305     /* center the icons if there is less than one row */
 306     if (icon_rows == 1)
 307         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
 308     else
 309         icons_center_x = 0;
 310
 311     if (!p->mapped) {
 312         /* position the background but don't draw it*/
 313         XMoveResizeWindow(ob_display, p->bg, x, y, w, h);
 314
 315         /* set up the hilite texture for the background */
 316         p->a_bg->texture[0].data.rgba.width = rgbaw;
 317         p->a_bg->texture[0].data.rgba.height = rgbah;
 318         p->a_bg->texture[0].data.rgba.alpha = 0xff;
 319         p->hilite_rgba = g_new(RrPixel32, rgbaw * rgbah);
 320         p->a_bg->texture[0].data.rgba.data = p->hilite_rgba;
 321
 322         /* position the text, but don't draw it */
 323         XMoveResizeWindow(ob_display, p->text, textx, texty, textw, texth);
 324         p->a_text->surface.parentx = textx;
 325         p->a_text->surface.parenty = texty;
 326     }
 327
 328     /* find the focused target */
 329     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 330         const ObFocusCyclePopupTarget *target = it->data;
 331         const gint row = i / icons_per_row; /* starting from 0 */
 332         const gint col = i % icons_per_row; /* starting from 0 */
 333
 334         if (target->client == c) {
 335             /* save the target */
 336             newtarget = target;
 337             newtargetx = icons_center_x + l + (col * ICON_SIZE);
 338             newtargety = t + (row * ICON_SIZE);
 339
 340             if (!p->mapped)
 341                 break; /* if we're not dimensioning, then we're done */
 342         }
 343     }
 344
 345     g_assert(newtarget != NULL);
 346
 347     /* create the hilite under the target icon */
 348     {
 349         RrPixel32 color;
 350         gint i, j, o;
 351
 352         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 353             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 354             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 355
 356         o = 0;
 357         for (i = 0; i < rgbah; ++i)
 358             for (j = 0; j < rgbaw; ++j) {
 359                 guchar a;
 360                 const gint x = j + rgbax - newtargetx;
 361                 const gint y = i + rgbay - newtargety;
 362
 363                 if (x < 0 || x >= ICON_SIZE ||
 364                     y < 0 || y >= ICON_SIZE)
 365                 {
 366                     /* outside the target */
 367                     a = 0x00;
 368                 }
 369                 else if (x < ICON_HILITE_WIDTH ||
 370                          x >= ICON_SIZE - ICON_HILITE_WIDTH ||
 371                          y < ICON_HILITE_WIDTH ||
 372                          y >= ICON_SIZE - ICON_HILITE_WIDTH)
 373                 {
 374                     /* the border of the target */
 375                     a = 0x88;
 376                 }
 377                 else {
 378                     /* the background of the target */
 379                     a = 0x22;
 380                 }
 381
 382                 p->hilite_rgba[o++] =
 383                     color + (a << RrDefaultAlphaOffset);
 384             }
 385     }
 386
 387     /* * * draw everything * * */
 388
 389     /* draw the background */
 390     RrPaint(p->a_bg, p->bg, w, h);
 391
 392     /* draw the icons */
 393     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 394         const ObFocusCyclePopupTarget *target = it->data;
 395
 396         /* have to redraw the targetted icon and last targetted icon,
 397            they can pick up the hilite changes in the backgroud */
 398         if (!p->mapped || newtarget == target || p->last_target == target) {
 399             const ObClientIcon *icon;
 400             const gint row = i / icons_per_row; /* starting from 0 */
 401             const gint col = i % icons_per_row; /* starting from 0 */
 402             gint innerx, innery;
 403
 404             /* find the dimensions of the icon inside it */
 405             innerx = icons_center_x + l + (col * ICON_SIZE);
 406             innerx += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 407             innery = t + (row * ICON_SIZE);
 408             innery += ICON_HILITE_WIDTH + ICON_HILITE_MARGIN;
 409
 410             /* move the icon */
 411             XMoveResizeWindow(ob_display, target->win,
 412                               innerx, innery, innerw, innerh);
 413
 414             /* get the icon from the client */
 415             icon = client_icon(target->client, innerw, innerh);
 416             p->a_icon->texture[0].data.rgba.width = icon->width;
 417             p->a_icon->texture[0].data.rgba.height = icon->height;
 418             p->a_icon->texture[0].data.rgba.alpha =
 419                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
 420             p->a_icon->texture[0].data.rgba.data = icon->data;
 421
 422             /* draw the icon */
 423             p->a_icon->surface.parentx = innerx;
 424             p->a_icon->surface.parenty = innery;
 425             RrPaint(p->a_icon, target->win, innerw, innerh);
 426         }
 427     }
 428
 429     /* draw the text */
 430     p->a_text->texture[0].data.text.string = newtarget->text;
 431     p->a_text->surface.parentx = textx;
 432     p->a_text->surface.parenty = texty;
 433     RrPaint(p->a_text, p->text, textw, texth);
 434
 435     p->last_target = newtarget;
 436
 437     g_free(screen_area);
 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         screen_hide_desktop_popup();
 460     }
 461 }
 462
 463 void focus_cycle_popup_hide(void)
 464 {
 465     gulong ignore_start;
 466
 467     ignore_start = event_start_ignore_all_enters();
 468
 469     XUnmapWindow(ob_display, popup.bg);
 470     XFlush(ob_display);
 471
 472     event_end_ignore_all_enters(ignore_start);
 473
 474     popup.mapped = FALSE;
 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         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
 506                     dock_windows, desktop_windows);
 507         g_assert(popup.targets == NULL);
 508
 509         /* position the popup */
 510         a = screen_physical_area_active();
 511         icon_popup_position(single_popup, CenterGravity,
 512                             a->x + a->width / 2, a->y + a->height / 2);
 513         icon_popup_height(single_popup, POPUP_HEIGHT);
 514         icon_popup_min_width(single_popup, POPUP_WIDTH);
 515         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
 516         icon_popup_text_width(single_popup, popup.maxtextw);
 517         g_free(a);
 518     }
 519
 520     text = popup_get_name(c);
 521     icon_popup_show(single_popup, text, client_icon(c, ICON_SIZE, ICON_SIZE));
 522     g_free(text);
 523     screen_hide_desktop_popup();
 524 }
 525
 526 void focus_cycle_popup_single_hide(void)
 527 {
 528     icon_popup_hide(single_popup);
 529 }