openbox/prompt.c

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
   2
   3    prompt.c for the Openbox window manager
   4    Copyright (c) 2008        Dana Jansens
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    See the COPYING file for a copy of the GNU General Public License.
  17 */
  18
  19 #include "prompt.h"
  20 #include "openbox.h"
  21 #include "screen.h"
  22 #include "client.h"
  23 #include "obt/display.h"
  24 #include "obt/keyboard.h"
  25 #include "obt/prop.h"
  26 #include "gettext.h"
  27
  28 static GList *prompt_list = NULL;
  29
  30 /* we construct these */
  31 static RrAppearance *prompt_a_button;
  32 static RrAppearance *prompt_a_focus;
  33 static RrAppearance *prompt_a_press;
  34 /* we change the max width which would screw with others */
  35 static RrAppearance *prompt_a_msg;
  36
  37 static void prompt_layout(ObPrompt *self);
  38 static void render_all(ObPrompt *self);
  39 static void render_button(ObPrompt *self, ObPromptElement *e);
  40
  41 void prompt_startup(gboolean reconfig)
  42 {
  43     RrColor *c_button, *c_focus, *c_press;
  44
  45     prompt_a_button = RrAppearanceCopy(ob_rr_theme->a_focused_unpressed_close);
  46     prompt_a_focus = RrAppearanceCopy(ob_rr_theme->a_hover_focused_close);
  47     prompt_a_press = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
  48
  49     c_button = prompt_a_button->texture[0].data.mask.color;
  50     c_focus = prompt_a_button->texture[0].data.mask.color;
  51     c_press = prompt_a_button->texture[0].data.mask.color;
  52
  53     RrAppearanceRemoveTextures(prompt_a_button);
  54     RrAppearanceRemoveTextures(prompt_a_focus);
  55     RrAppearanceRemoveTextures(prompt_a_press);
  56
  57     RrAppearanceAddTextures(prompt_a_button, 1);
  58     RrAppearanceAddTextures(prompt_a_focus, 1);
  59     RrAppearanceAddTextures(prompt_a_press, 1);
  60
  61     /* totally cheating here.. */
  62     prompt_a_button->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  63     prompt_a_focus->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  64     prompt_a_press->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  65
  66     prompt_a_button->texture[0].data.text.color = c_button;
  67     prompt_a_focus->texture[0].data.text.color = c_focus;
  68     prompt_a_press->texture[0].data.text.color = c_press;
  69
  70     prompt_a_msg = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
  71     prompt_a_msg->texture[0].data.text.flow = TRUE;
  72
  73     if (reconfig) {
  74         GList *it;
  75         for (it = prompt_list; it; it = g_list_next(it)) {
  76             ObPrompt *p = it->data;
  77             prompt_layout(p);
  78             render_all(p);
  79         }
  80     }
  81 }
  82
  83 void prompt_shutdown(gboolean reconfig)
  84 {
  85     RrAppearanceFree(prompt_a_button);
  86     RrAppearanceFree(prompt_a_focus);
  87     RrAppearanceFree(prompt_a_press);
  88     RrAppearanceFree(prompt_a_msg);
  89 }
  90
  91 ObPrompt* prompt_new(const gchar *msg, const gchar *const *answers)
  92 {
  93     ObPrompt *self;
  94     XSetWindowAttributes attrib;
  95     guint i;
  96     const gchar *const *c;
  97
  98     attrib.override_redirect = FALSE;
  99     attrib.border_pixel = RrColorPixel(ob_rr_theme->osd_border_color);
 100
 101     self = g_new0(ObPrompt, 1);
 102     self->ref = 1;
 103     self->super.type = OB_WINDOW_CLASS_PROMPT;
 104     self->super.window = XCreateWindow(obt_display, obt_root(ob_screen),
 105                                        0, 0, 1, 1, ob_rr_theme->obwidth,
 106                                        CopyFromParent, InputOutput,
 107                                        CopyFromParent,
 108                                        CWOverrideRedirect | CWBorderPixel,
 109                                        &attrib);
 110
 111     /* make it a dialog type window */
 112     OBT_PROP_SET32(self->super.window, NET_WM_WINDOW_TYPE, ATOM,
 113                    OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG));
 114
 115     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 116
 117     self->msg.text = g_strdup(msg);
 118     self->msg.window = XCreateWindow(obt_display, self->super.window,
 119                                      0, 0, 1, 1, 0,
 120                                      CopyFromParent, InputOutput,
 121                                      CopyFromParent, 0, NULL);
 122     XMapWindow(obt_display, self->msg.window);
 123
 124     self->n_buttons = 0;
 125     for (c = answers; *c != NULL; ++c)
 126         ++self->n_buttons;
 127
 128     if (!self->n_buttons)
 129         self->n_buttons = 1;
 130
 131     self->button = g_new(ObPromptElement, self->n_buttons);
 132
 133     if (!answers) {
 134         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 135         self->button[0].text = g_strdup(_("OK"));
 136     }
 137     else {
 138         g_assert(self->n_buttons > 0);
 139         for (i = 0; i < self->n_buttons; ++i)
 140             self->button[i].text = g_strdup(answers[i]);
 141     }
 142
 143     for (i = 0; i < self->n_buttons; ++i) {
 144         self->button[i].window = XCreateWindow(obt_display, self->super.window,
 145                                                0, 0, 1, 1, 0,
 146                                                CopyFromParent, InputOutput,
 147                                                CopyFromParent, 0, NULL);
 148         XMapWindow(obt_display, self->button[i].window);
 149         window_add(&self->button[i].window, PROMPT_AS_WINDOW(self));
 150
 151         /* listen for button presses on the buttons */
 152         XSelectInput(obt_display, self->button[i].window,
 153                      ButtonPressMask | ButtonReleaseMask | ButtonMotionMask);
 154     }
 155
 156     /* set the focus to the first button */
 157     self->focus = &self->button[0];
 158
 159     prompt_list = g_list_prepend(prompt_list, self);
 160
 161     return self;
 162 }
 163
 164 void prompt_ref(ObPrompt *self)
 165 {
 166     ++self->ref;
 167 }
 168
 169 void prompt_unref(ObPrompt *self)
 170 {
 171     if (self && --self->ref == 0) {
 172         guint i;
 173
 174         prompt_list = g_list_remove(prompt_list, self);
 175
 176         for (i = 0; i < self->n_buttons; ++i) {
 177             window_remove(self->button[i].window);
 178             XDestroyWindow(obt_display, self->button[i].window);
 179         }
 180
 181         XDestroyWindow(obt_display, self->msg.window);
 182
 183         RrAppearanceFree(self->a_bg);
 184
 185         XDestroyWindow(obt_display, self->super.window);
 186         g_free(self);
 187     }
 188 }
 189
 190 static void prompt_layout(ObPrompt *self)
 191 {
 192     gint l, r, t, b;
 193     guint i;
 194     gint allbuttonsw, allbuttonsh, buttonx;
 195     gint w, h;
 196     gint maxw;
 197
 198     const gint OUTSIDE_MARGIN = 4;
 199     const gint MSG_BUTTON_SEPARATION = 4;
 200     const gint BUTTON_SEPARATION = 4;
 201     const gint MAX_WIDTH = 600;
 202
 203     RrMargins(self->a_bg, &l, &t, &r, &b);
 204     l += OUTSIDE_MARGIN;
 205     t += OUTSIDE_MARGIN;
 206     r += OUTSIDE_MARGIN;
 207     b += OUTSIDE_MARGIN;
 208
 209     {
 210         Rect *area = screen_physical_area_all_monitors();
 211         maxw = MIN(MAX_WIDTH, area->width*4/5);
 212         g_free(area);
 213     }
 214
 215     /* find the button sizes and how much space we need for them */
 216     allbuttonsw = allbuttonsh = 0;
 217     for (i = 0; i < self->n_buttons; ++i) {
 218         gint bw, bh;
 219
 220         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 221         prompt_a_focus->texture[0].data.text.string = self->button[i].text;
 222         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 223         RrMinSize(prompt_a_button, &bw, &bh);
 224         self->button[i].width = bw;
 225         self->button[i].height = bh;
 226         RrMinSize(prompt_a_focus, &bw, &bh);
 227         self->button[i].width = MAX(self->button[i].width, bw);
 228         self->button[i].height = MAX(self->button[i].height, bh);
 229         RrMinSize(prompt_a_press, &bw, &bh);
 230         self->button[i].width = MAX(self->button[i].width, bw);
 231         self->button[i].height = MAX(self->button[i].height, bh);
 232
 233         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 234         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 235     }
 236
 237     self->msg_wbound = MAX(allbuttonsw, maxw);
 238
 239     /* measure the text message area */
 240     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 241     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 242     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 243
 244     /* width and height inside the outer margins */
 245     w = MAX(self->msg.width, allbuttonsw);
 246     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 247
 248     /* position the text message */
 249     self->msg.x = l + (w - self->msg.width) / 2;
 250     self->msg.y = t;
 251
 252     /* position the button buttons */
 253     buttonx = l + (w - allbuttonsw) / 2;
 254     for (i = 0; i < self->n_buttons; ++i) {
 255         self->button[i].x = buttonx;
 256         buttonx += self->button[i].width + BUTTON_SEPARATION;
 257         self->button[i].y = t + h - allbuttonsh;
 258         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 259     }
 260
 261     /* size and position the toplevel window */
 262     self->width = w + l + r;
 263     self->height = h + t + b;
 264
 265     /* move and resize the actual windows */
 266     XResizeWindow(obt_display, self->super.window, self->width, self->height);
 267     XMoveResizeWindow(obt_display, self->msg.window,
 268                       self->msg.x, self->msg.y,
 269                       self->msg.width, self->msg.height);
 270     for (i = 0; i < self->n_buttons; ++i)
 271         XMoveResizeWindow(obt_display, self->button[i].window,
 272                           self->button[i].x, self->button[i].y,
 273                           self->button[i].width, self->button[i].height);
 274 }
 275
 276 static void render_button(ObPrompt *self, ObPromptElement *e)
 277 {
 278     RrAppearance *a;
 279
 280     if (e->pressed) a = prompt_a_press;
 281     else if (self->focus == e) a = prompt_a_focus, g_print("focus!\n");
 282     else a = prompt_a_button;
 283
 284     a->surface.parent = self->a_bg;
 285     a->surface.parentx = e->x;
 286     a->surface.parentx = e->y;
 287
 288     a->texture[0].data.text.string = e->text;
 289     RrPaint(a, e->window, e->width, e->height);
 290 }
 291
 292 static void render_all(ObPrompt *self)
 293 {
 294     guint i;
 295
 296     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 297
 298     prompt_a_msg->surface.parent = self->a_bg;
 299     prompt_a_msg->surface.parentx = self->msg.x;
 300     prompt_a_msg->surface.parenty = self->msg.y;
 301
 302     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 303     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 304     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 305
 306     for (i = 0; i < self->n_buttons; ++i)
 307         render_button(self, &self->button[i]);
 308 }
 309
 310 void prompt_show(ObPrompt *self, ObClient *parent)
 311 {
 312     XSizeHints hints;
 313
 314     if (self->mapped) return;
 315
 316     prompt_layout(self);
 317     render_all(self);
 318
 319     /* you can't resize the prompt */
 320     hints.flags = PMinSize | PMaxSize;
 321     hints.min_width = hints.max_width = self->width;
 322     hints.min_height = hints.max_height = self->height;
 323     XSetWMNormalHints(obt_display, self->super.window, &hints);
 324
 325     XSetTransientForHint(obt_display, (parent ? parent->window : 0),
 326                          self->super.window);
 327
 328     client_manage(self->super.window, self);
 329
 330     self->mapped = TRUE;
 331 }
 332
 333 void prompt_hide(ObPrompt *self)
 334 {
 335     XUnmapWindow(obt_display, self->super.window);
 336     self->mapped = FALSE;
 337 }
 338
 339 void prompt_key_event(ObPrompt *self, XEvent *e)
 340 {
 341     gboolean shift;
 342     guint shift_mask;
 343
 344     if (e->type != KeyPress) return;
 345
 346     g_print("key 0x%x 0x%x\n", e->xkey.keycode, ob_keycode(OB_KEY_TAB));
 347
 348     shift_mask = obt_keyboard_modkey_to_modmask(OBT_KEYBOARD_MODKEY_SHIFT);
 349     shift = !!(e->xkey.state & shift_mask);
 350
 351     /* only accept shift */
 352     if (e->xkey.state != 0 && e->xkey.state != shift_mask)
 353         return;
 354
 355     if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE))
 356         prompt_hide(self);
 357     else if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN)) {
 358         /* XXX run stuff */
 359         prompt_hide(self);
 360     }
 361     else if (e->xkey.keycode == ob_keycode(OB_KEY_TAB)) {
 362         guint i;
 363         ObPromptElement *oldfocus;
 364
 365         oldfocus = self->focus;
 366
 367         for (i = 0; i < self->n_buttons; ++i)
 368             if (self->focus == &self->button[i]) break;
 369         i += (shift ? -1 : 1);
 370         if (i < 0) i = self->n_buttons - 1;
 371         else if (i >= self->n_buttons) i = 0;
 372         self->focus = &self->button[i];
 373
 374         if (oldfocus != self->focus) render_button(self, oldfocus);
 375         render_button(self, self->focus);
 376     }
 377 }
 378
 379 void prompt_mouse_event(ObPrompt *self, XEvent *e)
 380 {
 381     guint i;
 382     ObPromptElement *but;
 383
 384     if (e->type != ButtonPress && e->type != ButtonRelease &&
 385         e->type != MotionNotify) return;
 386
 387     /* find the button */
 388     for (i = 0; i < self->n_buttons; ++i)
 389         if (self->button[i].window ==
 390             (e->type == MotionNotify ? e->xmotion.window : e->xbutton.window))
 391         {
 392             but = &self->button[i];
 393             break;
 394         }
 395     g_assert(but != NULL);
 396
 397     if (e->type == ButtonPress) {
 398         ObPromptElement *oldfocus;
 399
 400         oldfocus = self->focus;
 401
 402         but->pressed = TRUE;
 403         self->focus = but;
 404
 405         if (oldfocus != but) render_button(self, oldfocus);
 406         render_button(self, but);
 407     }
 408     else if (e->type == ButtonRelease) {
 409         if (but->pressed) {
 410             /* XXX run stuff */
 411             prompt_hide(self);
 412         }
 413     }
 414     else if (e->type == MotionNotify) {
 415         gboolean press;
 416
 417         press = (e->xmotion.x >= 0 && e->xmotion.y >= 0 &&
 418                  e->xmotion.x < but->width && e->xmotion.y < but->height);
 419
 420         if (press != but->pressed) {
 421             but->pressed = press;
 422             render_button(self, but);
 423         }
 424     }
 425 }