combine the old focus cycle popup code with mika's new list-mode popup, and make...
[dana/openbox.git] / 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 /* Size of the hilite box around a window's icon */
34 #define HILITE_SIZE 40
35 /* Width of the outer ring around the hilite box */
36 #define HILITE_WIDTH 2
37 /* Space between the outer ring around the hilite box and the icon inside it */
38 #define HILITE_MARGIN 1
39 /* Total distance from the edge of the hilite box to the icon inside it */
40 #define HILITE_OFFSET (HILITE_WIDTH + HILITE_MARGIN)
41 /* Size of the icons, which can appear inside or outside of a hilite box */
42 #define ICON_SIZE (HILITE_SIZE - 2*HILITE_OFFSET)
43 /* Margin area around the outside of the dialog */
44 #define OUTSIDE_BORDER 3
45 /* Margin area around the text */
46 #define TEXT_BORDER 2
47
48 typedef struct _ObFocusCyclePopup       ObFocusCyclePopup;
49 typedef struct _ObFocusCyclePopupTarget ObFocusCyclePopupTarget;
50
51 struct _ObFocusCyclePopupTarget
52 {
53     ObClient *client;
54     gchar *text;
55     Window iconwin;
56     /* This is used when the popup is in list mode */
57     Window textwin;
58 };
59
60 struct _ObFocusCyclePopup
61 {
62     ObWindow obwin;
63     Window bg;
64
65     /* This is used when the popup is in icon mode */
66     Window icon_mode_text;
67
68     GList *targets;
69     gint n_targets;
70
71     const ObFocusCyclePopupTarget *last_target;
72
73     gint maxtextw;
74
75     RrAppearance *a_bg;
76     RrAppearance *a_text;
77     RrAppearance *a_hilite_text;
78     RrAppearance *a_icon;
79
80     gboolean mapped;
81 };
82
83 /*! This popup shows all possible windows */
84 static ObFocusCyclePopup popup;
85 /*! This popup shows a single window */
86 static ObIconPopup *single_popup;
87
88 static gchar *popup_get_name (ObClient *c);
89 static void   popup_setup    (ObFocusCyclePopup *p,
90                               gboolean create_targets,
91                               gboolean iconic_windows,
92                               gboolean all_desktops,
93                               gboolean dock_windows,
94                               gboolean desktop_windows);
95 static void   popup_render   (ObFocusCyclePopup *p,
96                               const ObClient *c,
97                               ObFocusCyclePopupMode mode);
98
99 static Window create_window(Window parent, guint bwidth, gulong mask,
100                             XSetWindowAttributes *attr)
101 {
102     return XCreateWindow(obt_display, parent, 0, 0, 1, 1, bwidth,
103                          RrDepth(ob_rr_inst), InputOutput,
104                          RrVisual(ob_rr_inst), mask, attr);
105 }
106
107 void focus_cycle_popup_startup(gboolean reconfig)
108 {
109     XSetWindowAttributes attrib;
110     RrPixel32 *p;
111
112     single_popup = icon_popup_new();
113
114     popup.obwin.type = OB_WINDOW_CLASS_INTERNAL;
115     popup.a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
116     popup.a_hilite_text = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
117     popup.a_text = RrAppearanceCopy(ob_rr_theme->a_unfocused_label);
118     popup.a_icon = RrAppearanceCopy(ob_rr_theme->a_clear);
119
120     popup.a_hilite_text->surface.parent = popup.a_bg;
121     popup.a_text->surface.parent = popup.a_bg;
122     popup.a_icon->surface.parent = popup.a_bg;
123
124     popup.a_text->texture[0].data.text.justify = RR_JUSTIFY_LEFT;
125     popup.a_hilite_text->texture[0].data.text.justify = RR_JUSTIFY_LEFT;
126
127     /* 2 textures. texture[0] is the icon.  texture[1] is the hilight, and
128        may or may not be used */
129     RrAppearanceAddTextures(popup.a_icon, 2);
130
131     popup.a_icon->texture[0].type = RR_TEXTURE_RGBA;
132
133     attrib.override_redirect = True;
134     attrib.border_pixel=RrColorPixel(ob_rr_theme->osd_border_color);
135     popup.bg = create_window(obt_root(ob_screen), ob_rr_theme->obwidth,
136                              CWOverrideRedirect | CWBorderPixel, &attrib);
137
138     /* create the text window used for the icon-mode popup */
139     popup.icon_mode_text = create_window(popup.bg, 0, 0, NULL);
140     XMapWindow(obt_display, popup.icon_mode_text);
141
142     popup.targets = NULL;
143     popup.n_targets = 0;
144     popup.last_target = NULL;
145
146     /* set up the hilite texture for the icon */
147     popup.a_icon->texture[1].data.rgba.width = HILITE_SIZE;
148     popup.a_icon->texture[1].data.rgba.height = HILITE_SIZE;
149     popup.a_icon->texture[1].data.rgba.alpha = 0xff;
150     p = g_new(RrPixel32, HILITE_SIZE * HILITE_SIZE);
151     popup.a_icon->texture[1].data.rgba.data = p;
152
153     /* create the hilite under the target icon */
154     {
155         RrPixel32 color;
156         gint x, y, o;
157
158         color = ((ob_rr_theme->osd_color->r & 0xff) << RrDefaultRedOffset) +
159             ((ob_rr_theme->osd_color->g & 0xff) << RrDefaultGreenOffset) +
160             ((ob_rr_theme->osd_color->b & 0xff) << RrDefaultBlueOffset);
161
162         o = 0;
163         for (x = 0; x < HILITE_SIZE; x++)
164             for (y = 0; y < HILITE_SIZE; y++) {
165                 guchar a;
166
167                 if (x < HILITE_WIDTH ||
168                     x >= HILITE_SIZE - HILITE_WIDTH ||
169                     y < HILITE_WIDTH ||
170                     y >= HILITE_SIZE - HILITE_WIDTH)
171                 {
172                     /* the border of the target */
173                     a = 0x88;
174                 }
175                 else {
176                     /* the background of the target */
177                     a = 0x22;
178                 }
179
180                 p[o++] = color + (a << RrDefaultAlphaOffset);
181             }
182     }
183
184     stacking_add(INTERNAL_AS_WINDOW(&popup));
185     window_add(&popup.bg, INTERNAL_AS_WINDOW(&popup));
186 }
187
188 void focus_cycle_popup_shutdown(gboolean reconfig)
189 {
190     icon_popup_free(single_popup);
191
192     window_remove(popup.bg);
193     stacking_remove(INTERNAL_AS_WINDOW(&popup));
194
195     while(popup.targets) {
196         ObFocusCyclePopupTarget *t = popup.targets->data;
197
198         g_free(t->text);
199         XDestroyWindow(obt_display, t->iconwin);
200         XDestroyWindow(obt_display, t->textwin);
201
202         popup.targets = g_list_delete_link(popup.targets, popup.targets);
203     }
204
205     g_free(popup.a_icon->texture[1].data.rgba.data);
206     popup.a_icon->texture[1].data.rgba.data = NULL;
207
208     XDestroyWindow(obt_display, popup.icon_mode_text);
209     XDestroyWindow(obt_display, popup.bg);
210
211     RrAppearanceFree(popup.a_icon);
212     RrAppearanceFree(popup.a_hilite_text);
213     RrAppearanceFree(popup.a_text);
214     RrAppearanceFree(popup.a_bg);
215 }
216
217 static void popup_setup(ObFocusCyclePopup *p, gboolean create_targets,
218                         gboolean iconic_windows, gboolean all_desktops,
219                         gboolean dock_windows, gboolean desktop_windows)
220 {
221     gint maxwidth, n;
222     GList *it;
223
224     g_assert(p->targets == NULL);
225     g_assert(p->n_targets == 0);
226
227     /* make its width to be the width of all the possible titles */
228
229     /* build a list of all the valid focus targets and measure their strings,
230        and count them */
231     maxwidth = 0;
232     n = 0;
233     for (it = g_list_last(focus_order); it; it = g_list_previous(it)) {
234         ObClient *ft = it->data;
235
236         if (focus_valid_target(ft, TRUE,
237                                iconic_windows,
238                                all_desktops,
239                                dock_windows,
240                                desktop_windows))
241         {
242             gchar *text = popup_get_name(ft);
243
244             /* measure */
245             p->a_text->texture[0].data.text.string = text;
246             maxwidth = MAX(maxwidth, RrMinWidth(p->a_text));
247
248             if (!create_targets)
249                 g_free(text);
250             else {
251                 ObFocusCyclePopupTarget *t = g_new(ObFocusCyclePopupTarget, 1);
252
253                 t->client = ft;
254                 t->text = text;
255                 t->iconwin = create_window(p->bg, 0, 0, NULL);
256                 t->textwin = create_window(p->bg, 0, 0, NULL);
257
258                 XMapWindow(obt_display, t->iconwin);
259                 XMapWindow(obt_display, t->textwin);
260
261                 p->targets = g_list_prepend(p->targets, t);
262                 ++n;
263             }
264         }
265     }
266
267     p->n_targets = n;
268     p->maxtextw = maxwidth;
269 }
270
271 static gchar *popup_get_name(ObClient *c)
272 {
273     ObClient *p;
274     gchar *title;
275     const gchar *desk = NULL;
276     gchar *ret;
277
278     /* find our highest direct parent */
279     p = client_search_top_direct_parent(c);
280
281     if (c->desktop != DESKTOP_ALL && c->desktop != screen_desktop)
282         desk = screen_desktop_names[c->desktop];
283
284     title = c->iconic ? c->icon_title : c->title;
285
286     /* use the transient's parent's title/icon if we don't have one */
287     if (p != c && title[0] == '\0')
288         title = p->iconic ? p->icon_title : p->title;
289
290     if (desk)
291         ret = g_strdup_printf("%s [%s]", title, desk);
292     else
293         ret = g_strdup(title);
294
295     return ret;
296 }
297
298 static void popup_render(ObFocusCyclePopup *p, const ObClient *c,
299                          ObFocusCyclePopupMode mode)
300 {
301     gint ml, mt, mr, mb;
302     gint l, t, r, b;
303     gint x, y, w, h;
304     Rect *screen_area = NULL;
305     gint rgbax, rgbay, rgbaw, rgbah;
306     gint i;
307     GList *it;
308     const ObFocusCyclePopupTarget *newtarget;
309     gint icons_per_row;
310     gint icon_rows;
311     gint textw, texth;
312
313     /* vars for icon mode */
314     gint icon_mode_textx;
315     gint icon_mode_texty;
316     gint icons_center_x;
317
318     /* vars for list mode */
319     gint list_mode_icon_column_w = HILITE_SIZE + OUTSIDE_BORDER;
320
321     g_assert(mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS ||
322              mode == OB_FOCUS_CYCLE_POPUP_MODE_LIST);
323
324     screen_area = screen_physical_area_active();
325
326     /* get the outside margins */
327     RrMargins(p->a_bg, &ml, &mt, &mr, &mb);
328
329     /* get our outside borders */
330     l = ml + OUTSIDE_BORDER;
331     r = mr + OUTSIDE_BORDER;
332     t = mt + OUTSIDE_BORDER;
333     b = mb + OUTSIDE_BORDER;
334
335     /* get the width from the text and keep it within limits */
336     w = l + r + p->maxtextw;
337     if (mode == OB_FOCUS_CYCLE_POPUP_MODE_LIST)
338         /* when in list mode, there are icons down the side */
339         w += list_mode_icon_column_w;
340     w = MIN(w, MAX(screen_area->width/3, POPUP_WIDTH)); /* max width */
341     w = MAX(w, POPUP_WIDTH); /* min width */
342
343     if (mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS) {
344         /* how many icons will fit in that row? make the width fit that */
345         w -= l + r;
346         icons_per_row = (w + ICON_SIZE - 1) / ICON_SIZE;
347         w = icons_per_row * ICON_SIZE + l + r;
348
349         /* how many rows do we need? */
350         icon_rows = (p->n_targets-1) / icons_per_row + 1;
351
352     }
353     else {
354         /* in list mode, there is one column of icons.. */
355         icons_per_row = 1;
356         icon_rows = p->n_targets;
357     }
358
359     /* get the text dimensions */
360     textw = w - l - r;
361     if (mode == OB_FOCUS_CYCLE_POPUP_MODE_LIST)
362         /* leave space on the side for the icons */
363         textw -= list_mode_icon_column_w;
364     texth = RrMinHeight(p->a_text) + TEXT_BORDER * 2;
365
366     /* find the height of the dialog */
367 #warning limit the height and scroll entries somehow
368     h = t + b + (icon_rows * MAX(HILITE_SIZE, texth));
369     if (mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS)
370         /* in icon mode the text sits below the icons, so make some space */
371         h += OUTSIDE_BORDER + texth;
372
373     /* center the icons if there is less than one row */
374     if (icon_rows == 1)
375         icons_center_x = (w - p->n_targets * ICON_SIZE) / 2;
376     else
377         icons_center_x = 0;
378
379     if (mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS) {
380         /* get the position of the text */
381         icon_mode_textx = l;
382         icon_mode_texty = h - texth - b;
383     }
384
385     /* find the position for the popup (include the outer borders) */
386     x = screen_area->x + (screen_area->width -
387                           (w + ob_rr_theme->obwidth * 2)) / 2;
388     y = screen_area->y + (screen_area->height -
389                           (h + ob_rr_theme->obwidth * 2)) / 2;
390
391     /* get the dimensions of the target hilite texture */
392     rgbax = ml;
393     rgbay = mt;
394     rgbaw = w - ml - mr;
395     rgbah = h - mt - mb;
396
397     if (!p->mapped) {
398         /* position the background but don't draw it */
399         XMoveResizeWindow(obt_display, p->bg, x, y, w, h);
400
401         if (mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS)
402             /* position the text */
403             XMoveResizeWindow(obt_display, p->icon_mode_text,
404                               icon_mode_textx, icon_mode_texty, textw, texth);
405     }
406
407     /* find the focused target */
408     newtarget = NULL;
409     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
410         const ObFocusCyclePopupTarget *target = it->data;
411         if (target->client == c) {
412             /* save the target */
413             newtarget = target;
414             break;
415         }
416     }
417
418     g_assert(newtarget != NULL);
419
420     /* * * draw everything * * */
421
422     /* draw the background */
423     if (!p->mapped)
424         RrPaint(p->a_bg, p->bg, w, h);
425
426     /* draw the icons and text */
427     for (i = 0, it = p->targets; it; ++i, it = g_list_next(it)) {
428         const ObFocusCyclePopupTarget *target = it->data;
429
430         /* have to redraw the targetted icon and last targetted icon
431          * to update the hilite */
432         if (!p->mapped || newtarget == target || p->last_target == target) {
433             const gint row = i / icons_per_row; /* starting from 0 */
434             const gint col = i % icons_per_row; /* starting from 0 */
435             const ObClientIcon *icon;
436             gint iconx, icony;
437             gint list_mode_textx, list_mode_texty;
438             RrAppearance *text;
439
440             /* find the coordinates for the icon */
441             iconx = icons_center_x + l + (col * HILITE_SIZE);
442             icony = t + (row * MAX(texth, HILITE_SIZE))
443                 + MAX(texth - HILITE_SIZE, 0) / 2;
444
445             /* find the dimensions of the text box */
446             list_mode_textx = iconx + HILITE_SIZE + TEXT_BORDER;
447             list_mode_texty = icony + HILITE_OFFSET;
448 //            textw = w
449 //                    /* left edge */  - innerx - HILITE_SIZE - TEXT_BORDER
450 //                    /* right edge */ - OUTSIDE_BORDER - TEXT_BORDER;
451
452             /* position the icon */
453             XMoveResizeWindow(obt_display, target->iconwin,
454                               iconx, icony, HILITE_SIZE, HILITE_SIZE);
455
456             /* position the text */
457             if (mode == OB_FOCUS_CYCLE_POPUP_MODE_LIST)
458                 XMoveResizeWindow(obt_display, target->textwin,
459                                   list_mode_textx, list_mode_texty,
460                                   textw, texth);
461
462             /* get the icon from the client */
463             icon = client_icon(target->client, ICON_SIZE, ICON_SIZE);
464             p->a_icon->texture[0].data.rgba.width = icon->width;
465             p->a_icon->texture[0].data.rgba.height = icon->height;
466             p->a_icon->texture[0].data.rgba.twidth = ICON_SIZE;
467             p->a_icon->texture[0].data.rgba.theight = ICON_SIZE;
468             p->a_icon->texture[0].data.rgba.tx = HILITE_OFFSET;
469             p->a_icon->texture[0].data.rgba.ty = HILITE_OFFSET;
470             p->a_icon->texture[0].data.rgba.alpha =
471                 target->client->iconic ? OB_ICONIC_ALPHA : 0xff;
472             p->a_icon->texture[0].data.rgba.data = icon->data;
473
474             /* Draw the hilite? */
475             p->a_icon->texture[1].type = (target == newtarget) ?
476                                          RR_TEXTURE_RGBA : RR_TEXTURE_NONE;
477
478             /* draw the icon */
479             p->a_icon->surface.parentx = iconx;
480             p->a_icon->surface.parenty = icony;
481             RrPaint(p->a_icon, target->iconwin, HILITE_SIZE, HILITE_SIZE);
482
483             /* draw the text */
484             if (mode == OB_FOCUS_CYCLE_POPUP_MODE_LIST || target == newtarget)
485             {
486                 text = (target == newtarget) ? p->a_hilite_text : p->a_text;
487                 text->texture[0].data.text.string = target->text;
488                 text->surface.parentx =
489                     mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS ?
490                     icon_mode_textx : list_mode_textx;
491                 text->surface.parenty =
492                     mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS ?
493                     icon_mode_texty : list_mode_texty;
494                 RrPaint(text,
495                         (mode == OB_FOCUS_CYCLE_POPUP_MODE_ICONS ?
496                          p->icon_mode_text : target->textwin),
497                         textw, texth);
498             }
499         }
500     }
501
502     p->last_target = newtarget;
503
504     g_free(screen_area);
505 }
506
507 void focus_cycle_popup_show(ObClient *c, gboolean iconic_windows,
508                             gboolean all_desktops, gboolean dock_windows,
509                             gboolean desktop_windows,
510                             ObFocusCyclePopupMode mode)
511 {
512     g_assert(c != NULL);
513
514     if (mode == OB_FOCUS_CYCLE_POPUP_MODE_NONE) {
515         focus_cycle_popup_hide();
516         return;
517     }
518
519     /* do this stuff only when the dialog is first showing */
520     if (!popup.mapped)
521         popup_setup(&popup, TRUE, iconic_windows, all_desktops,
522                     dock_windows, desktop_windows);
523     g_assert(popup.targets != NULL);
524
525     popup_render(&popup, c, mode);
526
527     if (!popup.mapped) {
528         /* show the dialog */
529         XMapWindow(obt_display, popup.bg);
530         XFlush(obt_display);
531         popup.mapped = TRUE;
532         screen_hide_desktop_popup();
533     }
534 }
535
536 void focus_cycle_popup_hide(void)
537 {
538     gulong ignore_start;
539
540     ignore_start = event_start_ignore_all_enters();
541
542     XUnmapWindow(obt_display, popup.bg);
543     XFlush(obt_display);
544
545     event_end_ignore_all_enters(ignore_start);
546
547     popup.mapped = FALSE;
548
549     while(popup.targets) {
550         ObFocusCyclePopupTarget *t = popup.targets->data;
551
552         g_free(t->text);
553         XDestroyWindow(obt_display, t->iconwin);
554         XDestroyWindow(obt_display, t->textwin);
555         g_free(t);
556
557         popup.targets = g_list_delete_link(popup.targets, popup.targets);
558     }
559     popup.n_targets = 0;
560     popup.last_target = NULL;
561 }
562
563 void focus_cycle_popup_single_show(struct _ObClient *c,
564                                    gboolean iconic_windows,
565                                    gboolean all_desktops,
566                                    gboolean dock_windows,
567                                    gboolean desktop_windows)
568 {
569     gchar *text;
570
571     g_assert(c != NULL);
572
573     /* do this stuff only when the dialog is first showing */
574     if (!popup.mapped) {
575         Rect *a;
576
577         popup_setup(&popup, FALSE, iconic_windows, all_desktops,
578                     dock_windows, desktop_windows);
579         g_assert(popup.targets == NULL);
580
581         /* position the popup */
582         a = screen_physical_area_active();
583         icon_popup_position(single_popup, CenterGravity,
584                             a->x + a->width / 2, a->y + a->height / 2);
585         icon_popup_height(single_popup, POPUP_HEIGHT);
586         icon_popup_min_width(single_popup, POPUP_WIDTH);
587         icon_popup_max_width(single_popup, MAX(a->width/3, POPUP_WIDTH));
588         icon_popup_text_width(single_popup, popup.maxtextw);
589         g_free(a);
590     }
591
592     text = popup_get_name(c);
593     icon_popup_show(single_popup, text, client_icon(c, HILITE_SIZE,
594                                                     HILITE_SIZE));
595     g_free(text);
596     screen_hide_desktop_popup();
597 }
598
599 void focus_cycle_popup_single_hide(void)
600 {
601     icon_popup_hide(single_popup);
602 }