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/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 = OB_WINDOW_CLASS_PROMPT;
 103     self->super.window = XCreateWindow(obt_display, obt_root(ob_screen),
 104                                        0, 0, 1, 1, ob_rr_theme->obwidth,
 105                                        CopyFromParent, InputOutput,
 106                                        CopyFromParent,
 107                                        CWOverrideRedirect | CWBorderPixel,
 108                                        &attrib);
 109
 110     OBT_PROP_SET32(self->super.window, NET_WM_WINDOW_TYPE, ATOM,
 111                    OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG));
 112
 113     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 114
 115     self->msg.text = g_strdup(msg);
 116     self->msg.window = XCreateWindow(obt_display, self->super.window,
 117                                      0, 0, 1, 1, 0,
 118                                      CopyFromParent, InputOutput,
 119                                      CopyFromParent, 0, NULL);
 120     XMapWindow(obt_display, self->msg.window);
 121
 122     self->n_buttons = 0;
 123     for (c = answers; *c != NULL; ++c)
 124         ++self->n_buttons;
 125
 126     if (!self->n_buttons)
 127         self->n_buttons = 1;
 128
 129     self->button = g_new(ObPromptElement, self->n_buttons);
 130
 131     if (!answers) {
 132         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 133         self->button[0].text = g_strdup(_("OK"));
 134     }
 135     else {
 136         g_assert(self->n_buttons > 0);
 137         for (i = 0; i < self->n_buttons; ++i)
 138             self->button[i].text = g_strdup(answers[i]);
 139     }
 140
 141     for (i = 0; i < self->n_buttons; ++i) {
 142         self->button[i].window = XCreateWindow(obt_display, self->super.window,
 143                                                0, 0, 1, 1, 0,
 144                                                CopyFromParent, InputOutput,
 145                                                CopyFromParent, 0, NULL);
 146         XMapWindow(obt_display, self->button[i].window);
 147         window_add(&self->button[i].window, PROMPT_AS_WINDOW(self));
 148     }
 149
 150     prompt_list = g_list_prepend(prompt_list, self);
 151
 152     return self;
 153 }
 154
 155 void prompt_ref(ObPrompt *self)
 156 {
 157     ++self->ref;
 158 }
 159
 160 void prompt_unref(ObPrompt *self)
 161 {
 162     if (self && --self->ref == 0) {
 163         guint i;
 164
 165         prompt_list = g_list_remove(prompt_list, self);
 166
 167         for (i = 0; i < self->n_buttons; ++i) {
 168             window_remove(self->button[i].window);
 169             XDestroyWindow(obt_display, self->button[i].window);
 170         }
 171
 172         XDestroyWindow(obt_display, self->msg.window);
 173
 174         RrAppearanceFree(self->a_bg);
 175
 176         XDestroyWindow(obt_display, self->super.window);
 177         g_free(self);
 178     }
 179 }
 180
 181 static void prompt_layout(ObPrompt *self)
 182 {
 183     gint l, r, t, b;
 184     guint i;
 185     gint allbuttonsw, allbuttonsh, buttonx;
 186     gint w, h;
 187     gint maxw;
 188
 189     const gint OUTSIDE_MARGIN = 4;
 190     const gint MSG_BUTTON_SEPARATION = 4;
 191     const gint BUTTON_SEPARATION = 4;
 192     const gint MAX_WIDTH = 600;
 193
 194     RrMargins(self->a_bg, &l, &t, &r, &b);
 195     l += OUTSIDE_MARGIN;
 196     t += OUTSIDE_MARGIN;
 197     r += OUTSIDE_MARGIN;
 198     b += OUTSIDE_MARGIN;
 199
 200     {
 201         Rect *area = screen_physical_area_all_monitors();
 202         maxw = MIN(MAX_WIDTH, area->width*4/5);
 203         g_free(area);
 204     }
 205
 206     /* find the button sizes and how much space we need for them */
 207     allbuttonsw = allbuttonsh = 0;
 208     for (i = 0; i < self->n_buttons; ++i) {
 209         gint bw, bh;
 210
 211         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 212         prompt_a_hover->texture[0].data.text.string = self->button[i].text;
 213         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 214         RrMinSize(prompt_a_button, &bw, &bh);
 215         self->button[i].width = bw;
 216         self->button[i].height = bh;
 217         RrMinSize(prompt_a_hover, &bw, &bh);
 218         self->button[i].width = MAX(self->button[i].width, bw);
 219         self->button[i].height = MAX(self->button[i].height, bh);
 220         RrMinSize(prompt_a_press, &bw, &bh);
 221         self->button[i].width = MAX(self->button[i].width, bw);
 222         self->button[i].height = MAX(self->button[i].height, bh);
 223
 224         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 225         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 226     }
 227
 228     self->msg_wbound = MAX(allbuttonsw, maxw);
 229
 230     /* measure the text message area */
 231     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 232     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 233     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 234
 235     /* width and height inside the outer margins */
 236     w = MAX(self->msg.width, allbuttonsw);
 237     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 238
 239     /* position the text message */
 240     self->msg.x = l + (w - self->msg.width) / 2;
 241     self->msg.y = t;
 242
 243     /* position the button buttons */
 244     buttonx = l + (w - allbuttonsw) / 2;
 245     for (i = 0; i < self->n_buttons; ++i) {
 246         self->button[i].x = buttonx;
 247         buttonx += self->button[i].width + BUTTON_SEPARATION;
 248         self->button[i].y = t + h - allbuttonsh;
 249         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 250     }
 251
 252     /* size and position the toplevel window */
 253     self->width = w + l + r;
 254     self->height = h + t + b;
 255
 256     /* move and resize the actual windows */
 257     XResizeWindow(obt_display, self->super.window, self->width, self->height);
 258     XMoveResizeWindow(obt_display, self->msg.window,
 259                       self->msg.x, self->msg.y,
 260                       self->msg.width, self->msg.height);
 261     for (i = 0; i < self->n_buttons; ++i)
 262         XMoveResizeWindow(obt_display, self->button[i].window,
 263                           self->button[i].x, self->button[i].y,
 264                           self->button[i].width, self->button[i].height);
 265 }
 266
 267 static void render_button(ObPrompt *self, ObPromptElement *e)
 268 {
 269     prompt_a_button->surface.parent = self->a_bg;
 270     prompt_a_button->surface.parentx = e->x;
 271     prompt_a_button->surface.parentx = e->y;
 272
 273     prompt_a_button->texture[0].data.text.string = e->text;
 274     RrPaint(prompt_a_button, e->window, e->width, e->height);
 275 }
 276
 277 static void render_all(ObPrompt *self)
 278 {
 279     guint i;
 280
 281     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 282
 283     prompt_a_msg->surface.parent = self->a_bg;
 284     prompt_a_msg->surface.parentx = self->msg.x;
 285     prompt_a_msg->surface.parentx = self->msg.y;
 286
 287     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 288     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 289     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 290
 291     for (i = 0; i < self->n_buttons; ++i)
 292         render_button(self, &self->button[i]);
 293 }
 294
 295 void prompt_show(ObPrompt *self, ObClient *parent)
 296 {
 297     XSizeHints hints;
 298
 299     if (self->mapped) return;
 300
 301     prompt_layout(self);
 302     render_all(self);
 303
 304     /* you can't resize the prompt */
 305     hints.flags = PMinSize | PMaxSize;
 306     hints.min_width = hints.max_width = self->width;
 307     hints.min_height = hints.max_height = self->height;
 308     XSetWMNormalHints(obt_display, self->super.window, &hints);
 309
 310     XSetTransientForHint(obt_display, (parent ? parent->window : 0),
 311                          self->super.window);
 312
 313     client_manage(self->super.window, self);
 314
 315     self->mapped = TRUE;
 316 }
 317
 318 void prompt_hide(ObPrompt *self)
 319 {
 320     XUnmapWindow(obt_display, self->super.window);
 321     self->mapped = FALSE;
 322 }
 323
 324 void prompt_hide_window(Window window)
 325 {
 326     GList *it;
 327     ObPrompt *p = NULL;
 328
 329     for (it = prompt_list; it; it = g_list_next(it)) {
 330         p = it->data;
 331         if (p->super.window == window) break;
 332     }
 333     g_assert(it != NULL);
 334     prompt_hide(p);
 335 }