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 "gettext.h"
  26
  27 static GList *prompt_list = NULL;
  28
  29 /* we construct these */
  30 static RrAppearance *prompt_a_button;
  31 static RrAppearance *prompt_a_hover;
  32 static RrAppearance *prompt_a_press;
  33 /* we change the max width which would screw with others */
  34 static RrAppearance *prompt_a_msg;
  35
  36 static void prompt_layout(ObPrompt *self);
  37 static void render_all(ObPrompt *self);
  38 static void render_button(ObPrompt *self, ObPromptElement *e);
  39
  40 void prompt_startup(gboolean reconfig)
  41 {
  42     RrColor *c_button, *c_hover, *c_press;
  43
  44     prompt_a_button = RrAppearanceCopy(ob_rr_theme->a_focused_unpressed_close);
  45     prompt_a_hover = RrAppearanceCopy(ob_rr_theme->a_hover_focused_close);
  46     prompt_a_press = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
  47
  48     c_button = prompt_a_button->texture[0].data.mask.color;
  49     c_hover = prompt_a_button->texture[0].data.mask.color;
  50     c_press = prompt_a_button->texture[0].data.mask.color;
  51
  52     RrAppearanceRemoveTextures(prompt_a_button);
  53     RrAppearanceRemoveTextures(prompt_a_hover);
  54     RrAppearanceRemoveTextures(prompt_a_press);
  55
  56     RrAppearanceAddTextures(prompt_a_button, 1);
  57     RrAppearanceAddTextures(prompt_a_hover, 1);
  58     RrAppearanceAddTextures(prompt_a_press, 1);
  59
  60     /* totally cheating here.. */
  61     prompt_a_button->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  62     prompt_a_hover->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  63     prompt_a_press->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  64
  65     prompt_a_button->texture[0].data.text.color = c_button;
  66     prompt_a_hover->texture[0].data.text.color = c_hover;
  67     prompt_a_press->texture[0].data.text.color = c_press;
  68
  69     prompt_a_msg = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
  70     prompt_a_msg->texture[0].data.text.flow = TRUE;
  71
  72     if (reconfig) {
  73         GList *it;
  74         for (it = prompt_list; it; it = g_list_next(it)) {
  75             ObPrompt *p = it->data;
  76             prompt_layout(p);
  77             render_all(p);
  78         }
  79     }
  80 }
  81
  82 void prompt_shutdown(gboolean reconfig)
  83 {
  84     RrAppearanceFree(prompt_a_button);
  85     RrAppearanceFree(prompt_a_hover);
  86     RrAppearanceFree(prompt_a_press);
  87     RrAppearanceFree(prompt_a_msg);
  88 }
  89
  90 ObPrompt* prompt_new(const gchar *msg, const gchar *const *answers)
  91 {
  92     ObPrompt *self;
  93     XSetWindowAttributes attrib;
  94     guint i;
  95     const gchar *const *c;
  96
  97     attrib.override_redirect = FALSE;
  98     attrib.border_pixel = RrColorPixel(ob_rr_theme->osd_border_color);
  99
 100     self = g_new0(ObPrompt, 1);
 101     self->ref = 1;
 102     self->super.type = Window_Prompt;
 103     self->super.window = XCreateWindow(ob_display,
 104                                        RootWindow(ob_display, ob_screen),
 105                                        0, 0, 1, 1, ob_rr_theme->obwidth,
 106                                        CopyFromParent, InputOutput,
 107                                        CopyFromParent,
 108                                        CWOverrideRedirect | CWBorderPixel,
 109                                        &attrib);
 110
 111     PROP_SET32(self->super.window, net_wm_window_type, atom,
 112                prop_atoms.net_wm_window_type_dialog);
 113
 114     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 115
 116     self->msg.text = g_strdup(msg);
 117     self->msg.window = XCreateWindow(ob_display, self->super.window,
 118                                      0, 0, 1, 1, 0,
 119                                      CopyFromParent, InputOutput,
 120                                      CopyFromParent, 0, NULL);
 121     XMapWindow(ob_display, self->msg.window);
 122
 123     self->n_buttons = 0;
 124     for (c = answers; *c != NULL; ++c)
 125         ++self->n_buttons;
 126
 127     if (!self->n_buttons)
 128         self->n_buttons = 1;
 129
 130     self->button = g_new(ObPromptElement, self->n_buttons);
 131
 132     if (!answers) {
 133         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 134         self->button[0].text = g_strdup(_("OK"));
 135     }
 136     else {
 137         g_assert(self->n_buttons > 0);
 138         for (i = 0; i < self->n_buttons; ++i)
 139             self->button[i].text = g_strdup(answers[i]);
 140     }
 141
 142     for (i = 0; i < self->n_buttons; ++i) {
 143         self->button[i].window = XCreateWindow(ob_display, self->super.window,
 144                                                0, 0, 1, 1, 0,
 145                                                CopyFromParent, InputOutput,
 146                                                CopyFromParent, 0, NULL);
 147         XMapWindow(ob_display, self->button[i].window);
 148         g_hash_table_insert(window_map, &self->button[i].window,
 149                             PROMPT_AS_WINDOW(self));
 150     }
 151
 152     prompt_list = g_list_prepend(prompt_list, self);
 153
 154     return self;
 155 }
 156
 157 void prompt_ref(ObPrompt *self)
 158 {
 159     ++self->ref;
 160 }
 161
 162 void prompt_unref(ObPrompt *self)
 163 {
 164     if (self && --self->ref == 0) {
 165         guint i;
 166
 167         prompt_list = g_list_remove(prompt_list, self);
 168
 169         for (i = 0; i < self->n_buttons; ++i) {
 170             g_hash_table_remove(window_map, &self->button[i].window);
 171             XDestroyWindow(ob_display, self->button[i].window);
 172         }
 173
 174         XDestroyWindow(ob_display, self->msg.window);
 175
 176         RrAppearanceFree(self->a_bg);
 177
 178         XDestroyWindow(ob_display, self->super.window);
 179         g_free(self);
 180     }
 181 }
 182
 183 static void prompt_layout(ObPrompt *self)
 184 {
 185     gint l, r, t, b;
 186     guint i;
 187     gint allbuttonsw, allbuttonsh, buttonx;
 188     gint w, h;
 189     gint maxw;
 190
 191     const gint OUTSIDE_MARGIN = 4;
 192     const gint MSG_BUTTON_SEPARATION = 4;
 193     const gint BUTTON_SEPARATION = 4;
 194     const gint MAX_WIDTH = 600;
 195
 196     RrMargins(self->a_bg, &l, &t, &r, &b);
 197     l += OUTSIDE_MARGIN;
 198     t += OUTSIDE_MARGIN;
 199     r += OUTSIDE_MARGIN;
 200     b += OUTSIDE_MARGIN;
 201
 202     {
 203         Rect *area = screen_physical_area_all_monitors();
 204         maxw = MIN(MAX_WIDTH, area->width*4/5);
 205         g_free(area);
 206     }
 207
 208     /* find the button sizes and how much space we need for them */
 209     allbuttonsw = allbuttonsh = 0;
 210     for (i = 0; i < self->n_buttons; ++i) {
 211         gint bw, bh;
 212
 213         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 214         prompt_a_hover->texture[0].data.text.string = self->button[i].text;
 215         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 216         RrMinSize(prompt_a_button, &bw, &bh);
 217         self->button[i].width = bw;
 218         self->button[i].height = bh;
 219         RrMinSize(prompt_a_hover, &bw, &bh);
 220         self->button[i].width = MAX(self->button[i].width, bw);
 221         self->button[i].height = MAX(self->button[i].height, bh);
 222         RrMinSize(prompt_a_press, &bw, &bh);
 223         self->button[i].width = MAX(self->button[i].width, bw);
 224         self->button[i].height = MAX(self->button[i].height, bh);
 225
 226         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 227         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 228     }
 229
 230     self->msg_wbound = MAX(allbuttonsw, maxw);
 231
 232     /* measure the text message area */
 233     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 234     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 235     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 236
 237     /* width and height inside the outer margins */
 238     w = MAX(self->msg.width, allbuttonsw);
 239     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 240
 241     /* position the text message */
 242     self->msg.x = l + (w - self->msg.width) / 2;
 243     self->msg.y = t;
 244
 245     /* position the button buttons */
 246     buttonx = l + (w - allbuttonsw) / 2;
 247     for (i = 0; i < self->n_buttons; ++i) {
 248         self->button[i].x = buttonx;
 249         buttonx += self->button[i].width + BUTTON_SEPARATION;
 250         self->button[i].y = t + h - allbuttonsh;
 251         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 252     }
 253
 254     /* size and position the toplevel window */
 255     self->width = w + l + r;
 256     self->height = h + t + b;
 257
 258     /* move and resize the actual windows */
 259     XResizeWindow(ob_display, self->super.window, self->width, self->height);
 260     XMoveResizeWindow(ob_display, self->msg.window,
 261                       self->msg.x, self->msg.y,
 262                       self->msg.width, self->msg.height);
 263     for (i = 0; i < self->n_buttons; ++i)
 264         XMoveResizeWindow(ob_display, self->button[i].window,
 265                           self->button[i].x, self->button[i].y,
 266                           self->button[i].width, self->button[i].height);
 267 }
 268
 269 static void render_button(ObPrompt *self, ObPromptElement *e)
 270 {
 271     prompt_a_button->surface.parent = self->a_bg;
 272     prompt_a_button->surface.parentx = e->x;
 273     prompt_a_button->surface.parentx = e->y;
 274
 275     prompt_a_button->texture[0].data.text.string = e->text;
 276     RrPaint(prompt_a_button, e->window, e->width, e->height);
 277 }
 278
 279 static void render_all(ObPrompt *self)
 280 {
 281     guint i;
 282
 283     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 284
 285     prompt_a_msg->surface.parent = self->a_bg;
 286     prompt_a_msg->surface.parentx = self->msg.x;
 287     prompt_a_msg->surface.parenty = self->msg.y;
 288
 289     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 290     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 291     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 292
 293     for (i = 0; i < self->n_buttons; ++i)
 294         render_button(self, &self->button[i]);
 295 }
 296
 297 void prompt_show(ObPrompt *self, ObClient *parent)
 298 {
 299     XSizeHints hints;
 300
 301     if (self->mapped) return;
 302
 303     prompt_layout(self);
 304     render_all(self);
 305
 306     /* you can't resize the prompt */
 307     hints.flags = PMinSize | PMaxSize;
 308     hints.min_width = hints.max_width = self->width;
 309     hints.min_height = hints.max_height = self->height;
 310     XSetWMNormalHints(ob_display, self->super.window, &hints);
 311
 312     XSetTransientForHint(ob_display, (parent ? parent->window : 0),
 313                          self->super.window);
 314
 315     client_manage(self->super.window, self);
 316
 317     self->mapped = TRUE;
 318 }
 319
 320 void prompt_hide(ObPrompt *self)
 321 {
 322     XUnmapWindow(ob_display, self->super.window);
 323     self->mapped = FALSE;
 324 }
 325
 326 void prompt_hide_window(Window window)
 327 {
 328     GList *it;
 329     ObPrompt *p = NULL;
 330
 331     for (it = prompt_list; it; it = g_list_next(it)) {
 332         p = it->data;
 333         if (p->super.window == window) break;
 334     }
 335     g_assert(it != NULL);
 336     prompt_hide(p);
 337 }