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 "obt/display.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 = OB_WINDOW_CLASS_PROMPT;
  83     self->super.window = XCreateWindow(obt_display, obt_root(ob_screen),
  84                                        0, 0, 1, 1, 0,
  85                                        CopyFromParent, InputOutput,
  86                                        CopyFromParent,
  87                                        CWOverrideRedirect, &attrib);
  88     window_add(&self->super.window, PROMPT_AS_WINDOW(self));
  89
  90     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
  91
  92     self->msg.text = g_strdup(msg);
  93     self->msg.window = XCreateWindow(obt_display, self->super.window,
  94                                      0, 0, 1, 1, 0,
  95                                      CopyFromParent, InputOutput,
  96                                      CopyFromParent, 0, NULL);
  97     XMapWindow(obt_display, self->msg.window);
  98
  99     self->n_buttons = 0;
 100     for (c = answers; *c != NULL; ++c)
 101         ++self->n_buttons;
 102
 103     if (!self->n_buttons)
 104         self->n_buttons = 1;
 105
 106     self->button = g_new(ObPromptElement, self->n_buttons);
 107
 108     if (!answers) {
 109         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 110         self->button[0].text = g_strdup(_("OK"));
 111     }
 112     else {
 113         g_assert(self->n_buttons > 0);
 114         for (i = 0; i < self->n_buttons; ++i)
 115             self->button[i].text = g_strdup(answers[i]);
 116     }
 117
 118     for (i = 0; i < self->n_buttons; ++i) {
 119         self->button[i].window = XCreateWindow(obt_display, self->super.window,
 120                                                0, 0, 1, 1, 0,
 121                                                CopyFromParent, InputOutput,
 122                                                CopyFromParent, 0, NULL);
 123         XMapWindow(obt_display, self->button[i].window);
 124         window_add(&self->button[i].window, PROMPT_AS_WINDOW(self));
 125     }
 126
 127     return self;
 128 }
 129
 130 void prompt_ref(ObPrompt *self)
 131 {
 132     ++self->ref;
 133 }
 134
 135 void prompt_unref(ObPrompt *self)
 136 {
 137     if (self && --self->ref == 0) {
 138         guint i;
 139
 140         for (i = 0; i < self->n_buttons; ++i) {
 141             window_remove(self->button[i].window);
 142             XDestroyWindow(obt_display, self->button[i].window);
 143         }
 144
 145         XDestroyWindow(obt_display, self->msg.window);
 146
 147         RrAppearanceFree(self->a_bg);
 148
 149         window_remove(self->super.window);
 150         XDestroyWindow(obt_display, self->super.window);
 151         g_free(self);
 152     }
 153 }
 154
 155 static void prompt_layout(ObPrompt *self, const Rect *area)
 156 {
 157     RrAppearance *a_msg = msg_appearance(self);
 158     gint l, r, t, b;
 159     guint i;
 160     gint allbuttonsw, allbuttonsh, buttonx;
 161     gint w, h;
 162
 163     const gint OUTSIDE_MARGIN = 4;
 164     const gint MSG_BUTTON_SEPARATION = 4;
 165     const gint BUTTON_SEPARATION = 4;
 166
 167     RrMargins(self->a_bg, &l, &t, &r, &b);
 168     l += OUTSIDE_MARGIN;
 169     t += OUTSIDE_MARGIN;
 170     r += OUTSIDE_MARGIN;
 171     b += OUTSIDE_MARGIN;
 172
 173     /* find the button sizes and how much space we need for them */
 174     allbuttonsw = allbuttonsh = 0;
 175     for (i = 0; i < self->n_buttons; ++i) {
 176         gint bw, bh;
 177
 178         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 179         prompt_a_hover->texture[0].data.text.string = self->button[i].text;
 180         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 181         RrMinSize(prompt_a_button, &bw, &bh);
 182         self->button[i].width = bw;
 183         self->button[i].height = bh;
 184         RrMinSize(prompt_a_hover, &bw, &bh);
 185         self->button[i].width = MAX(self->button[i].width, bw);
 186         self->button[i].height = MAX(self->button[i].height, bh);
 187         RrMinSize(prompt_a_press, &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
 191         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 192         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 193     }
 194
 195     self->msg_wbound = MAX(allbuttonsw, area->width*3/5);
 196
 197     /* measure the text message area */
 198     a_msg->texture[0].data.text.string = self->msg.text;
 199     a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 200     RrMinSize(a_msg, &self->msg.width, &self->msg.height);
 201     a_msg->texture[0].data.text.maxwidth = 0;
 202
 203     /* width and height inside the outer margins */
 204     w = MAX(self->msg.width, allbuttonsw);
 205     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 206
 207     /* position the text message */
 208     self->msg.x = l + (w - self->msg.width) / 2;
 209     self->msg.y = t;
 210
 211     /* position the button buttons */
 212     buttonx = l + (w - allbuttonsw) / 2;
 213     for (i = 0; i < self->n_buttons; ++i) {
 214         self->button[i].x = buttonx;
 215         buttonx += self->button[i].width + BUTTON_SEPARATION;
 216         self->button[i].y = h - allbuttonsh;
 217         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 218     }
 219
 220     /* size and position the toplevel window */
 221     self->width = w + l + r;
 222     self->height = h + t + b;
 223     self->x = (area->width - self->width) / 2;
 224     self->y = (area->height - self->height) / 2;
 225
 226     /* move and resize the actual windows */
 227     XMoveResizeWindow(obt_display, self->super.window,
 228                       self->x, self->y, self->width, self->height);
 229     XMoveResizeWindow(obt_display, self->msg.window,
 230                       self->msg.x, self->msg.y,
 231                       self->msg.width, self->msg.height);
 232     for (i = 0; i < self->n_buttons; ++i)
 233         XMoveResizeWindow(obt_display, self->button[i].window,
 234                           self->button[i].x, self->button[i].y,
 235                           self->button[i].width, self->button[i].height);
 236 }
 237
 238 static void render_button(ObPrompt *self, ObPromptElement *e)
 239 {
 240     prompt_a_button->surface.parent = self->a_bg;
 241     prompt_a_button->surface.parentx = e->x;
 242     prompt_a_button->surface.parentx = e->y;
 243
 244     prompt_a_button->texture[0].data.text.string = e->text;
 245     RrPaint(prompt_a_button, e->window, e->width, e->height);
 246 }
 247
 248 static void render_all(ObPrompt *self)
 249 {
 250     guint i;
 251
 252     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 253
 254     msg_appearance()->surface.parent = self->a_bg;
 255     msg_appearance()->surface.parentx = self->msg.x;
 256     msg_appearance()->surface.parentx = self->msg.y;
 257
 258     msg_appearance()->texture[0].data.text.string = self->msg.text;
 259     msg_appearance()->texture[0].data.text.maxwidth = self->msg_wbound;
 260     RrPaint(msg_appearance(), self->msg.window,
 261             self->msg.width, self->msg.height);
 262     msg_appearance()->texture[0].data.text.maxwidth = 0;
 263
 264     for (i = 0; i < self->n_buttons; ++i)
 265         render_button(self, &self->button[i]);
 266 }
 267
 268 void prompt_show(ObPrompt *self, const Rect *area)
 269 {
 270     if (self->mapped) return;
 271
 272     prompt_layout(self, area);
 273     render_all(self);
 274     XMapWindow(obt_display, self->super.window);
 275
 276     self->mapped = TRUE;
 277 }
 278
 279 void prompt_hide(ObPrompt *self)
 280 {
 281     XUnmapWindow(obt_display, self->super.window);
 282     self->mapped = FALSE;
 283 }