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