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 HILITE_SIZE 40
  34 #define HILITE_WIDTH 2
  35 #define HILITE_MARGIN 1
  36 #define HILITE_OFFSET (HILITE_WIDTH + HILITE_MARGIN)
  37 #define ICON_SIZE (HILITE_SIZE - 2*HILITE_OFFSET)
  38 #define OUTSIDE_BORDER 3
  39 #define TEXT_BORDER 2
  40
  41 typedef struct _ObFocusCyclePopup       ObFocusCyclePopup;
  42 typedef struct _ObFocusCyclePopupTarget ObFocusCyclePopupTarget;
  43
  44 struct _ObFocusCyclePopupTarget
  45 {
  46     ObClient *client;
  47     gchar *text;
  48     Window iconwin;
  49     Window textwin;
  50 };
  51
  52 struct _ObFocusCyclePopup
  53 {
  54     ObWindow obwin;
  55     Window bg;
  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_hilite_text;
  67     RrAppearance *a_icon;
  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(obt_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     RrPixel32 *p;
  99
 100     single_popup = icon_popup_new();
 101
 102     popup.obwin.type = OB_WINDOW_CLASS_INTERNAL;
 103     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 104     popup.a_hilite_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
 105     popup.a_text = RrAppearanceCopy(ob_rr_theme->a_unfocused_label);
 106     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear);
 107
 108     popup.a_hilite_text->surface.parent = popup.a_bg;
 109     popup.a_text->surface.parent = popup.a_bg;
 110     popup.a_icon->surface.parent = popup.a_bg;
 111
 112     RrAppearanceAddTextures(popup.a_icon, 2);
 113
 114     popup.a_icon->texture[0].type = RR_TEXTURE_RGBA;
 115
 116     attrib.override_redirect = True;
 117     attrib.border_pixel=RrColorPixel(ob_rr_theme->osd_border_color);
 118     popup.bg = create_window(obt_root(ob_screen), ob_rr_theme->obwidth,
 119                              CWOverrideRedirect | CWBorderPixel, &attrib);
 120
 121     popup.targets = NULL;
 122     popup.n_targets = 0;
 123     popup.last_target = NULL;
 124
 125     /* set up the hilite texture for the icon */
 126     popup.a_icon->texture[1].data.rgba.width = HILITE_SIZE;
 127     popup.a_icon->texture[1].data.rgba.height = HILITE_SIZE;
 128     popup.a_icon->texture[1].data.rgba.alpha = 0xff;
 129     p = g_new(RrPixel32, HILITE_SIZE * HILITE_SIZE);
 130     popup.a_icon->texture[1].data.rgba.data = p;
 131
 132     /* create the hilite under the target icon */
 133     {
 134         RrPixel32 color;
 135         gint x, y, o;
 136
 137         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
 138             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
 139             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
 140
 141         o = 0;
 142         for (x = 0; x < HILITE_SIZE; x++)
 143             for (y = 0; y < HILITE_SIZE; y++) {
 144                 guchar a;
 145
 146                 if (x < HILITE_WIDTH ||
 147                     x >= HILITE_SIZE - HILITE_WIDTH ||
 148                     y < HILITE_WIDTH ||
 149                     y >= HILITE_SIZE - HILITE_WIDTH)
 150                 {
 151                     /* the border of the target */
 152                     a = 0x88;
 153                 }
 154                 else {
 155                     /* the background of the target */
 156                     a = 0x22;
 157                 }
 158
 159                 p[o++] = color + (a << RrDefaultAlphaOffset);
 160             }
 161     }
 162
 163     stacking_add(INTERNAL_AS_WINDOW(&popup));
 164     window_add(&popup.bg, INTERNAL_AS_WINDOW(&popup));
 165 }
 166
 167 void focus_cycle_popup_shutdown(gboolean reconfig)
 168 {
 169     icon_popup_free(single_popup);
 170
 171     window_remove(popup.bg);
 172     stacking_remove(INTERNAL_AS_WINDOW(&popup));
 173
 174     while(popup.targets) {
 175         ObFocusCyclePopupTarget *t = popup.targets->data;
 176
 177         g_free(t->text);
 178         XDestroyWindow(obt_display, t->iconwin);
 179         XDestroyWindow(obt_display, t->textwin);
 180
 181         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 182     }
 183
 184     XDestroyWindow(obt_display, popup.bg);
 185
 186     RrAppearanceFree(popup.a_icon);
 187     RrAppearanceFree(popup.a_hilite_text);
 188     RrAppearanceFree(popup.a_text);
 189     RrAppearanceFree(popup.a_bg);
 190 }
 191
 192 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets,
 193                         gboolean iconic_windows, gboolean all_desktops,
 194                         gboolean dock_windows, gboolean desktop_windows)
 195 {
 196     gint maxwidth, n;
 197     GList *it;
 198
 199     g_assert(p->targets == NULL);
 200     g_assert(p->n_targets == 0);
 201
 202     /* make its width to be the width of all the possible titles */
 203
 204     /* build a list of all the valid focus targets and measure their strings,
 205        and count them */
 206     maxwidth = 0;
 207     n = 0;
 208     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
 209         ObClient *ft = it->data;
 210
 211         if (focus_valid_target(ft, TRUE,
 212                                iconic_windows,
 213                                all_desktops,
 214                                dock_windows,
 215                                desktop_windows))
 216         {
 217             gchar *text = popup_get_name(ft);
 218
 219             /* measure */
 220             p->a_text->texture[0].data.text.string = text;
 221             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
 222
 223             if (!create_targets)
 224                 g_free(text);
 225             else {
 226                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
 227
 228                 t->client = ft;
 229                 t->text = text;
 230                 t->iconwin = create_window(p->bg, 0, 0, NULL);
 231                 t->textwin = create_window(p->bg, 0, 0, NULL);
 232
 233                 XMapWindow(obt_display, t->iconwin);
 234                 XMapWindow(obt_display, t->textwin);
 235
 236                 p->targets = g_list_prepend(p->targets, t);
 237                 ++n;
 238             }
 239         }
 240     }
 241
 242     p->n_targets = n;
 243     p->maxtextw = maxwidth;
 244 }
 245
 246 static gchar *popup_get_name(ObClient *c)
 247 {
 248     ObClient *p;
 249     gchar *title;
 250     const gchar *desk = NULL;
 251     gchar *ret;
 252
 253     /* find our highest direct parent */
 254     p = client_search_top_direct_parent(c);
 255
 256     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
 257         desk = screen_desktop_names[c->desktop];
 258
 259     title = c->iconic ? c->icon_title : c->title;
 260
 261     /* use the transient's parent's title/icon if we don't have one */
 262     if (p != c && title[0] == '\0')
 263         title = p->iconic ? p->icon_title : p->title;
 264
 265     if (desk)
 266         ret = g_strdup_printf("%s [%s]", title, desk);
 267     else
 268         ret = g_strdup(title);
 269
 270     return ret;
 271 }
 272
 273 static void popup_render(ObFocusCyclePopup *p, const ObClient *c)
 274 {
 275     gint ml, mt, mr, mb;
 276     gint l, t, r, b;
 277     gint x, y, w, h;
 278     Rect *screen_area = NULL;
 279     gint rgbax, rgbay, rgbaw, rgbah;
 280     gint i;
 281     GList *it;
 282     const ObFocusCyclePopupTarget *newtarget;
 283     gint newtargetx, newtargety;
 284
 285     screen_area = screen_physical_area_active();
 286
 287     /* get the outside margins */
 288     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
 289
 290     /* get our outside borders */
 291     l = ml + OUTSIDE_BORDER;
 292     r = mr + OUTSIDE_BORDER;
 293     t = mt + OUTSIDE_BORDER;
 294     b = mb + OUTSIDE_BORDER;
 295
 296     /* get the width from the text and keep it within limits */
 297     w = l + r + p->maxtextw;
 298     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
 299     w = MAX(w, POPUP_WIDTH); /* min width */
 300
 301     /* find the height of the dialog */
 302 #warning limit the height and scroll entries somehow
 303     h = t + b + (p->n_targets * HILITE_SIZE);
 304
 305     /* find the position for the popup (include the outer borders) */
 306     x = screen_area->x + (screen_area->width -
 307                           (w + ob_rr_theme->obwidth * 2)) / 2;
 308     y = screen_area->y + (screen_area->height -
 309                           (h + ob_rr_theme->obwidth * 2)) / 2;
 310
 311     /* get the dimensions of the target hilite texture */
 312     rgbax = ml;
 313     rgbay = mt;
 314     rgbaw = w - ml - mr;
 315     rgbah = h - mt - mb;
 316
 317     if (!p->mapped) {
 318         /* position the background but don't draw it*/
 319         XMoveResizeWindow(obt_display, p->bg, x, y, w, h);
 320     }
 321
 322     /* find the focused target */
 323     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 324         const ObFocusCyclePopupTarget *target = it->data;
 325
 326         if (target->client == c) {
 327             /* save the target */
 328             newtarget = target;
 329             newtargetx = l;
 330             newtargety = t + i * HILITE_SIZE;
 331
 332             if (!p->mapped)
 333                 break; /* if we're not dimensioning, then we're done */
 334         }
 335     }
 336
 337     g_assert(newtarget != NULL);
 338
 339     /* * * draw everything * * */
 340
 341     /* draw the background */
 342     if (!p->mapped)
 343         RrPaint(p->a_bg, p->bg, w, h);
 344
 345     /* draw the icons and text */
 346     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
 347         const ObFocusCyclePopupTarget *target = it->data;
 348
 349         /* have to redraw the targetted icon and last targetted icon
 350          * to update the hilite */
 351         if (!p->mapped || newtarget == target || p->last_target == target) {
 352             const ObClientIcon *icon;
 353             gint innerx, innery, textx, texty;
 354             gint textw /* texth = ICON_SIZE */;
 355             RrAppearance *text;
 356
 357             /* find the dimensions of the icon inside it */
 358             innerx = l;
 359             innery = t + i * HILITE_SIZE;
 360
 361             /* find the dimensions of the text box */
 362             textx = innerx + HILITE_SIZE + TEXT_BORDER;
 363             texty = innery + HILITE_OFFSET;
 364             textw = w
 365                     /* left edge */  - innerx - HILITE_SIZE - TEXT_BORDER
 366                     /* right edge */ - OUTSIDE_BORDER - TEXT_BORDER;
 367
 368             /* move the icon */
 369             XMoveResizeWindow(obt_display, target->iconwin,
 370                               innerx, innery, HILITE_SIZE, HILITE_SIZE);
 371
 372             /* move the text */
 373             XMoveResizeWindow(obt_display, target->textwin,
 374                               textx, texty,
 375                               textw, ICON_SIZE);
 376
 377             /* get the icon from the client */
 378             icon = client_icon(target->client, ICON_SIZE, ICON_SIZE);
 379             p->a_icon->texture[0].data.rgba.width = icon->width;
 380             p->a_icon->texture[0].data.rgba.height = icon->height;
 381             p->a_icon->texture[0].data.rgba.twidth = ICON_SIZE;
 382             p->a_icon->texture[0].data.rgba.theight = ICON_SIZE;
 383             p->a_icon->texture[0].data.rgba.tx = HILITE_OFFSET;
 384             p->a_icon->texture[0].data.rgba.ty = HILITE_OFFSET;
 385             p->a_icon->texture[0].data.rgba.alpha =
 386                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
 387             p->a_icon->texture[0].data.rgba.data = icon->data;
 388
 389             /* Draw the hilite? */
 390             p->a_icon->texture[1].type = (target == newtarget) ?
 391                                          RR_TEXTURE_RGBA : RR_TEXTURE_NONE;
 392
 393             /* draw the icon */
 394             p->a_icon->surface.parentx = innerx;
 395             p->a_icon->surface.parenty = innery;
 396             RrPaint(p->a_icon, target->iconwin, HILITE_SIZE, HILITE_SIZE);
 397
 398             /* draw the text */
 399             text = (target == newtarget) ? p->a_hilite_text : p->a_text;
 400             text->texture[0].data.text.string = target->text;
 401             text->surface.parentx = textx;
 402             text->surface.parenty = texty;
 403             RrPaint(text, target->textwin, textw, ICON_SIZE);
 404         }
 405     }
 406
 407     p->last_target = newtarget;
 408
 409     g_free(screen_area);
 410 }
 411
 412 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
 413                             gboolean all_desktops, gboolean dock_windows,
 414                             gboolean desktop_windows)
 415 {
 416     g_assert(c != NULL);
 417
 418     /* do this stuff only when the dialog is first showing */
 419     if (!popup.mapped)
 420         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
 421                     dock_windows, desktop_windows);
 422     g_assert(popup.targets != NULL);
 423
 424     popup_render(&popup, c);
 425
 426     if (!popup.mapped) {
 427         /* show the dialog */
 428         XMapWindow(obt_display, popup.bg);
 429         XFlush(obt_display);
 430         popup.mapped = TRUE;
 431         screen_hide_desktop_popup();
 432     }
 433 }
 434
 435 void focus_cycle_popup_hide(void)
 436 {
 437     gulong ignore_start;
 438
 439     ignore_start = event_start_ignore_all_enters();
 440
 441     XUnmapWindow(obt_display, popup.bg);
 442     XFlush(obt_display);
 443
 444     event_end_ignore_all_enters(ignore_start);
 445
 446     popup.mapped = FALSE;
 447
 448     while(popup.targets) {
 449         ObFocusCyclePopupTarget *t = popup.targets->data;
 450
 451         g_free(t->text);
 452         XDestroyWindow(obt_display, t->iconwin);
 453         XDestroyWindow(obt_display, t->textwin);
 454         g_free(t);
 455
 456         popup.targets = g_list_delete_link(popup.targets, popup.targets);
 457     }
 458     popup.n_targets = 0;
 459     popup.last_target = 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, HILITE_SIZE,
 493                                                     HILITE_SIZE));
 494     g_free(text);
 495     screen_hide_desktop_popup();
 496 }
 497
 498 void focus_cycle_popup_single_hide(void)
 499 {
 500     icon_popup_hide(single_popup);
 501 }