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 "gettext.h"
  24
  25 static GList *prompt_list = NULL;
  26
  27 /* we construct these */
  28 static RrAppearance *prompt_a_button;
  29 static RrAppearance *prompt_a_hover;
  30 static RrAppearance *prompt_a_press;
  31
  32 #define msg_appearance(self) (ob_rr_theme->osd_hilite_label)
  33
  34 void prompt_startup(gboolean reconfig)
  35 {
  36     RrColor *c_button, *c_hover, *c_press;
  37
  38     prompt_a_button = RrAppearanceCopy(ob_rr_theme->a_focused_unpressed_close);
  39     prompt_a_hover = RrAppearanceCopy(ob_rr_theme->a_hover_focused_close);
  40     prompt_a_press = RrAppearanceCopy(ob_rr_theme->a_focused_pressed_close);
  41
  42     c_button = prompt_a_button->texture[0].data.mask.color;
  43     c_hover = prompt_a_button->texture[0].data.mask.color;
  44     c_press = prompt_a_button->texture[0].data.mask.color;
  45
  46     RrAppearanceRemoveTextures(prompt_a_button);
  47     RrAppearanceRemoveTextures(prompt_a_hover);
  48     RrAppearanceRemoveTextures(prompt_a_press);
  49
  50     RrAppearanceAddTextures(prompt_a_button, 1);
  51     RrAppearanceAddTextures(prompt_a_hover, 1);
  52     RrAppearanceAddTextures(prompt_a_press, 1);
  53
  54     /* totally cheating here.. */
  55     prompt_a_button->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  56     prompt_a_hover->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  57     prompt_a_press->texture[0] = ob_rr_theme->osd_hilite_label->texture[0];
  58
  59     prompt_a_button->texture[0].data.text.color = c_button;
  60     prompt_a_hover->texture[0].data.text.color = c_hover;
  61     prompt_a_press->texture[0].data.text.color = c_press;
  62 }
  63
  64 void prompt_shutdown(gboolean reconfig)
  65 {
  66     RrAppearanceFree(prompt_a_button);
  67     RrAppearanceFree(prompt_a_hover);
  68     RrAppearanceFree(prompt_a_press);
  69 }
  70
  71 ObPrompt* prompt_new(const gchar *msg, const gchar *const *answers)
  72 {
  73     ObPrompt *self;
  74     XSetWindowAttributes attrib;
  75     guint i;
  76     const gchar *const *c;
  77
  78     attrib.override_redirect = TRUE;
  79
  80     self = g_new0(ObPrompt, 1);
  81     self->ref = 1;
  82     self->super.type = Window_Prompt;
  83     self->super.window = XCreateWindow(ob_display,
  84                                        RootWindow(ob_display, ob_screen),
  85                                        0, 0, 1, 1, 0,
  86                                        CopyFromParent, InputOutput,
  87                                        CopyFromParent,
  88                                        CWOverrideRedirect, &attrib);
  89     g_hash_table_insert(window_map, &self->super.window,
  90                         PROMPT_AS_WINDOW(self));
  91
  92     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
  93
  94     self->msg.text = g_strdup(msg);
  95     self->msg.window = XCreateWindow(ob_display, self->super.window,
  96                                      0, 0, 1, 1, 0,
  97                                      CopyFromParent, InputOutput,
  98                                      CopyFromParent, 0, NULL);
  99     XMapWindow(ob_display, self->msg.window);
 100
 101     self->n_buttons = 0;
 102     for (c = answers; *c != NULL; ++c)
 103         ++self->n_buttons;
 104
 105     if (!self->n_buttons)
 106         self->n_buttons = 1;
 107
 108     self->button = g_new(ObPromptElement, self->n_buttons);
 109
 110     if (!answers) {
 111         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 112         self->button[0].text = g_strdup(_("OK"));
 113     }
 114     else {
 115         g_assert(self->n_buttons > 0);
 116         for (i = 0; i < self->n_buttons; ++i)
 117             self->button[i].text = g_strdup(answers[i]);
 118     }
 119
 120     for (i = 0; i < self->n_buttons; ++i) {
 121         self->button[i].window = XCreateWindow(ob_display, self->super.window,
 122                                                0, 0, 1, 1, 0,
 123                                                CopyFromParent, InputOutput,
 124                                                CopyFromParent, 0, NULL);
 125         XMapWindow(ob_display, self->button[i].window);
 126         g_hash_table_insert(window_map, &self->button[i].window,
 127                             PROMPT_AS_WINDOW(self));
 128     }
 129
 130     return self;
 131 }
 132
 133 void prompt_ref(ObPrompt *self)
 134 {
 135     ++self->ref;
 136 }
 137
 138 void prompt_unref(ObPrompt *self)
 139 {
 140     if (self && --self->ref == 0) {
 141         guint i;
 142
 143         for (i = 0; i < self->n_buttons; ++i) {
 144             g_hash_table_remove(window_map, &self->button[i].window);
 145             XDestroyWindow(ob_display, self->button[i].window);
 146         }
 147
 148         XDestroyWindow(ob_display, self->msg.window);
 149
 150         RrAppearanceFree(self->a_bg);
 151
 152         g_hash_table_remove(window_map, &self->super.window);
 153         XDestroyWindow(ob_display, self->super.window);
 154         g_free(self);
 155     }
 156 }
 157
 158 static void prompt_layout(ObPrompt *self, const Rect *area)
 159 {
 160     RrAppearance *a_msg = msg_appearance(self);
 161     gint l, r, t, b;
 162     guint i;
 163     gint allbuttonsw, allbuttonsh, buttonx;
 164     gint w, h;
 165
 166     const gint OUTSIDE_MARGIN = 4;
 167     const gint MSG_BUTTON_SEPARATION = 4;
 168     const gint BUTTON_SEPARATION = 4;
 169
 170     RrMargins(self->a_bg, &l, &t, &r, &b);
 171     l += OUTSIDE_MARGIN;
 172     t += OUTSIDE_MARGIN;
 173     r += OUTSIDE_MARGIN;
 174     b += OUTSIDE_MARGIN;
 175
 176     /* find the button sizes and how much space we need for them */
 177     allbuttonsw = allbuttonsh = 0;
 178     for (i = 0; i < self->n_buttons; ++i) {
 179         gint bw, bh;
 180
 181         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 182         prompt_a_hover->texture[0].data.text.string = self->button[i].text;
 183         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 184         RrMinSize(prompt_a_button, &bw, &bh);
 185         self->button[i].width = bw;
 186         self->button[i].height = bh;
 187         RrMinSize(prompt_a_hover, &bw, &bh);
 188         self->button[i].width = MAX(self->button[i].width, bw);
 189         self->button[i].height = MAX(self->button[i].height, bh);
 190         RrMinSize(prompt_a_press, &bw, &bh);
 191         self->button[i].width = MAX(self->button[i].width, bw);
 192         self->button[i].height = MAX(self->button[i].height, bh);
 193
 194         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 195         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 196     }
 197
 198     self->msg_wbound = MAX(allbuttonsw, area->width*3/5);
 199
 200     /* measure the text message area */
 201     a_msg->texture[0].data.text.string = self->msg.text;
 202     a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 203     RrMinSize(a_msg, &self->msg.width, &self->msg.height);
 204     a_msg->texture[0].data.text.maxwidth = 0;
 205
 206     /* width and height inside the outer margins */
 207     w = MAX(self->msg.width, allbuttonsw);
 208     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 209
 210     /* position the text message */
 211     self->msg.x = l + (w - self->msg.width) / 2;
 212     self->msg.y = t;
 213
 214     /* position the button buttons */
 215     buttonx = l + (w - allbuttonsw) / 2;
 216     for (i = 0; i < self->n_buttons; ++i) {
 217         self->button[i].x = buttonx;
 218         buttonx += self->button[i].width + BUTTON_SEPARATION;
 219         self->button[i].y = h - allbuttonsh;
 220         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 221     }
 222
 223     /* size and position the toplevel window */
 224     self->width = w + l + r;
 225     self->height = h + t + b;
 226     self->x = (area->width - self->width) / 2;
 227     self->y = (area->height - self->height) / 2;
 228
 229     /* move and resize the actual windows */
 230     XMoveResizeWindow(ob_display, self->super.window,
 231                       self->x, self->y, self->width, self->height);
 232     XMoveResizeWindow(ob_display, self->msg.window,
 233                       self->msg.x, self->msg.y,
 234                       self->msg.width, self->msg.height);
 235     for (i = 0; i < self->n_buttons; ++i)
 236         XMoveResizeWindow(ob_display, self->button[i].window,
 237                           self->button[i].x, self->button[i].y,
 238                           self->button[i].width, self->button[i].height);
 239 }
 240
 241 static void render_button(ObPrompt *self, ObPromptElement *e)
 242 {
 243     prompt_a_button->surface.parent = self->a_bg;
 244     prompt_a_button->surface.parentx = e->x;
 245     prompt_a_button->surface.parentx = e->y;
 246
 247     prompt_a_button->texture[0].data.text.string = e->text;
 248     RrPaint(prompt_a_button, e->window, e->width, e->height);
 249 }
 250
 251 static void render_all(ObPrompt *self)
 252 {
 253     guint i;
 254
 255     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 256
 257     msg_appearance()->surface.parent = self->a_bg;
 258     msg_appearance()->surface.parentx = self->msg.x;
 259     msg_appearance()->surface.parentx = self->msg.y;
 260
 261     msg_appearance()->texture[0].data.text.string = self->msg.text;
 262     msg_appearance()->texture[0].data.text.maxwidth = self->msg_wbound;
 263     RrPaint(msg_appearance(), self->msg.window,
 264             self->msg.width, self->msg.height);
 265     msg_appearance()->texture[0].data.text.maxwidth = 0;
 266
 267     for (i = 0; i < self->n_buttons; ++i)
 268         render_button(self, &self->button[i]);
 269 }
 270
 271 void prompt_show(ObPrompt *self, const Rect *area)
 272 {
 273     if (self->mapped) return;
 274
 275     prompt_layout(self, area);
 276     render_all(self);
 277     XMapWindow(ob_display, self->super.window);
 278
 279     self->mapped = TRUE;
 280 }
 281
 282 void prompt_hide(ObPrompt *self)
 283 {
 284     XUnmapWindow(ob_display, self->super.window);
 285     self->mapped = FALSE;
 286 }