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 "openbox.h"
  23 #include "client.h"
  24 #include "prop.h"
  25 #include "modkeys.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 = Window_Prompt;
 104     self->super.window = XCreateWindow(ob_display,
 105                                        RootWindow(ob_display, ob_screen),
 106                                        0, 0, 1, 1, ob_rr_theme->obwidth,
 107                                        CopyFromParent, InputOutput,
 108                                        CopyFromParent,
 109                                        CWOverrideRedirect | CWBorderPixel,
 110                                        &attrib);
 111
 112     /* make it a dialog type window */
 113     PROP_SET32(self->super.window, net_wm_window_type, atom,
 114                prop_atoms.net_wm_window_type_dialog);
 115
 116     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 117
 118     self->msg.text = g_strdup(msg);
 119     self->msg.window = XCreateWindow(ob_display, self->super.window,
 120                                      0, 0, 1, 1, 0,
 121                                      CopyFromParent, InputOutput,
 122                                      CopyFromParent, 0, NULL);
 123     XMapWindow(ob_display, self->msg.window);
 124
 125     self->n_buttons = 0;
 126     for (c = answers; *c != NULL; ++c)
 127         ++self->n_buttons;
 128
 129     if (!self->n_buttons)
 130         self->n_buttons = 1;
 131
 132     self->button = g_new(ObPromptElement, self->n_buttons);
 133
 134     if (!answers) {
 135         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 136         self->button[0].text = g_strdup(_("OK"));
 137     }
 138     else {
 139         g_assert(self->n_buttons > 0);
 140         for (i = 0; i < self->n_buttons; ++i)
 141             self->button[i].text = g_strdup(answers[i]);
 142     }
 143
 144     for (i = 0; i < self->n_buttons; ++i) {
 145         self->button[i].window = XCreateWindow(ob_display, self->super.window,
 146                                                0, 0, 1, 1, 0,
 147                                                CopyFromParent, InputOutput,
 148                                                CopyFromParent, 0, NULL);
 149         XMapWindow(ob_display, self->button[i].window);
 150         g_hash_table_insert(window_map, &self->button[i].window,
 151                             PROMPT_AS_WINDOW(self));
 152
 153         /* listen for button presses on the buttons */
 154         XSelectInput(ob_display, self->button[i].window,
 155                      ButtonPressMask | ButtonReleaseMask | ButtonMotionMask);
 156     }
 157
 158     /* set the focus to the first button */
 159     self->focus = &self->button[0];
 160
 161     prompt_list = g_list_prepend(prompt_list, self);
 162
 163     return self;
 164 }
 165
 166 void prompt_ref(ObPrompt *self)
 167 {
 168     ++self->ref;
 169 }
 170
 171 void prompt_unref(ObPrompt *self)
 172 {
 173     if (self && --self->ref == 0) {
 174         guint i;
 175
 176         prompt_list = g_list_remove(prompt_list, self);
 177
 178         for (i = 0; i < self->n_buttons; ++i) {
 179             g_hash_table_remove(window_map, &self->button[i].window);
 180             XDestroyWindow(ob_display, self->button[i].window);
 181         }
 182
 183         XDestroyWindow(ob_display, self->msg.window);
 184
 185         RrAppearanceFree(self->a_bg);
 186
 187         XDestroyWindow(ob_display, self->super.window);
 188         g_free(self);
 189     }
 190 }
 191
 192 static void prompt_layout(ObPrompt *self)
 193 {
 194     gint l, r, t, b;
 195     guint i;
 196     gint allbuttonsw, allbuttonsh, buttonx;
 197     gint w, h;
 198     gint maxw;
 199
 200     const gint OUTSIDE_MARGIN = 4;
 201     const gint MSG_BUTTON_SEPARATION = 4;
 202     const gint BUTTON_SEPARATION = 4;
 203     const gint MAX_WIDTH = 600;
 204
 205     RrMargins(self->a_bg, &l, &t, &r, &b);
 206     l += OUTSIDE_MARGIN;
 207     t += OUTSIDE_MARGIN;
 208     r += OUTSIDE_MARGIN;
 209     b += OUTSIDE_MARGIN;
 210
 211     {
 212         Rect *area = screen_physical_area_all_monitors();
 213         maxw = MIN(MAX_WIDTH, area->width*4/5);
 214         g_free(area);
 215     }
 216
 217     /* find the button sizes and how much space we need for them */
 218     allbuttonsw = allbuttonsh = 0;
 219     for (i = 0; i < self->n_buttons; ++i) {
 220         gint bw, bh;
 221
 222         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 223         prompt_a_focus->texture[0].data.text.string = self->button[i].text;
 224         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 225         RrMinSize(prompt_a_button, &bw, &bh);
 226         self->button[i].width = bw;
 227         self->button[i].height = bh;
 228         RrMinSize(prompt_a_focus, &bw, &bh);
 229         self->button[i].width = MAX(self->button[i].width, bw);
 230         self->button[i].height = MAX(self->button[i].height, bh);
 231         RrMinSize(prompt_a_press, &bw, &bh);
 232         self->button[i].width = MAX(self->button[i].width, bw);
 233         self->button[i].height = MAX(self->button[i].height, bh);
 234
 235         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 236         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 237     }
 238
 239     self->msg_wbound = MAX(allbuttonsw, maxw);
 240
 241     /* measure the text message area */
 242     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 243     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 244     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 245
 246     /* width and height inside the outer margins */
 247     w = MAX(self->msg.width, allbuttonsw);
 248     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 249
 250     /* position the text message */
 251     self->msg.x = l + (w - self->msg.width) / 2;
 252     self->msg.y = t;
 253
 254     /* position the button buttons */
 255     buttonx = l + (w - allbuttonsw) / 2;
 256     for (i = 0; i < self->n_buttons; ++i) {
 257         self->button[i].x = buttonx;
 258         buttonx += self->button[i].width + BUTTON_SEPARATION;
 259         self->button[i].y = t + h - allbuttonsh;
 260         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 261     }
 262
 263     /* size and position the toplevel window */
 264     self->width = w + l + r;
 265     self->height = h + t + b;
 266
 267     /* move and resize the actual windows */
 268     XResizeWindow(ob_display, self->super.window, self->width, self->height);
 269     XMoveResizeWindow(ob_display, self->msg.window,
 270                       self->msg.x, self->msg.y,
 271                       self->msg.width, self->msg.height);
 272     for (i = 0; i < self->n_buttons; ++i)
 273         XMoveResizeWindow(ob_display, self->button[i].window,
 274                           self->button[i].x, self->button[i].y,
 275                           self->button[i].width, self->button[i].height);
 276 }
 277
 278 static void render_button(ObPrompt *self, ObPromptElement *e)
 279 {
 280     RrAppearance *a;
 281
 282     if (e->pressed) a = prompt_a_press;
 283     else if (self->focus == e) a = prompt_a_focus, g_print("focus!\n");
 284     else a = prompt_a_button;
 285
 286     a->surface.parent = self->a_bg;
 287     a->surface.parentx = e->x;
 288     a->surface.parentx = e->y;
 289
 290     a->texture[0].data.text.string = e->text;
 291     RrPaint(a, e->window, e->width, e->height);
 292 }
 293
 294 static void render_all(ObPrompt *self)
 295 {
 296     guint i;
 297
 298     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 299
 300     prompt_a_msg->surface.parent = self->a_bg;
 301     prompt_a_msg->surface.parentx = self->msg.x;
 302     prompt_a_msg->surface.parenty = self->msg.y;
 303
 304     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 305     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 306     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 307
 308     for (i = 0; i < self->n_buttons; ++i)
 309         render_button(self, &self->button[i]);
 310 }
 311
 312 void prompt_show(ObPrompt *self, ObClient *parent)
 313 {
 314     XSizeHints hints;
 315
 316     if (self->mapped) return;
 317
 318     prompt_layout(self);
 319     render_all(self);
 320
 321     /* you can't resize the prompt */
 322     hints.flags = PMinSize | PMaxSize;
 323     hints.min_width = hints.max_width = self->width;
 324     hints.min_height = hints.max_height = self->height;
 325     XSetWMNormalHints(ob_display, self->super.window, &hints);
 326
 327     XSetTransientForHint(ob_display, (parent ? parent->window : 0),
 328                          self->super.window);
 329
 330     client_manage(self->super.window, self);
 331
 332     self->mapped = TRUE;
 333 }
 334
 335 void prompt_hide(ObPrompt *self)
 336 {
 337     XUnmapWindow(ob_display, self->super.window);
 338     self->mapped = FALSE;
 339 }
 340
 341 void prompt_key_event(ObPrompt *self, XEvent *e)
 342 {
 343     gboolean shift;
 344     guint shift_mask;
 345
 346     if (e->type != KeyPress) return;
 347
 348     g_print("key 0x%x 0x%x\n", e->xkey.keycode, ob_keycode(OB_KEY_TAB));
 349
 350     shift_mask = modkeys_key_to_mask(OB_MODKEY_KEY_SHIFT);
 351     shift = !!(e->xkey.state & shift_mask);
 352
 353     /* only accept shift */
 354     if (e->xkey.state != 0 && e->xkey.state != shift_mask)
 355         return;
 356
 357     if (e->xkey.keycode == ob_keycode(OB_KEY_ESCAPE))
 358         prompt_hide(self);
 359     else if (e->xkey.keycode == ob_keycode(OB_KEY_RETURN)) {
 360         /* XXX run stuff */
 361         prompt_hide(self);
 362     }
 363     else if (e->xkey.keycode == ob_keycode(OB_KEY_TAB)) {
 364         guint i;
 365         ObPromptElement *oldfocus;
 366
 367         oldfocus = self->focus;
 368
 369         for (i = 0; i < self->n_buttons; ++i)
 370             if (self->focus == &self->button[i]) break;
 371         i += (shift ? -1 : 1);
 372         if (i < 0) i = self->n_buttons - 1;
 373         else if (i >= self->n_buttons) i = 0;
 374         self->focus = &self->button[i];
 375
 376         if (oldfocus != self->focus) render_button(self, oldfocus);
 377         render_button(self, self->focus);
 378     }
 379 }
 380
 381 void prompt_mouse_event(ObPrompt *self, XEvent *e)
 382 {
 383     guint i;
 384     ObPromptElement *but;
 385
 386     if (e->type != ButtonPress && e->type != ButtonRelease &&
 387         e->type != MotionNotify) return;
 388
 389     /* find the button */
 390     for (i = 0; i < self->n_buttons; ++i)
 391         if (self->button[i].window ==
 392             (e->type == MotionNotify ? e->xmotion.window : e->xbutton.window))
 393         {
 394             but = &self->button[i];
 395             break;
 396         }
 397     g_assert(but != NULL);
 398
 399     if (e->type == ButtonPress) {
 400         ObPromptElement *oldfocus;
 401
 402         oldfocus = self->focus;
 403
 404         but->pressed = TRUE;
 405         self->focus = but;
 406
 407         if (oldfocus != but) render_button(self, oldfocus);
 408         render_button(self, but);
 409     }
 410     else if (e->type == ButtonRelease) {
 411         if (but->pressed) {
 412             /* XXX run stuff */
 413             prompt_hide(self);
 414         }
 415     }
 416     else if (e->type == MotionNotify) {
 417         gboolean press;
 418
 419         press = (e->xmotion.x >= 0 && e->xmotion.y >= 0 &&
 420                  e->xmotion.x < but->width && e->xmotion.y < but->height);
 421
 422         if (press != but->pressed) {
 423             but->pressed = press;
 424             render_button(self, but);
 425         }
 426     }
 427 }