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 /* we change the max width which would screw with others */
  32 static RrAppearance *prompt_a_msg;
  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     prompt_a_msg = RrAppearanceCopy(ob_rr_theme->osd_hilite_label);
  64     prompt_a_msg->texture[0].data.text.flow = TRUE;
  65 }
  66
  67 void prompt_shutdown(gboolean reconfig)
  68 {
  69     RrAppearanceFree(prompt_a_button);
  70     RrAppearanceFree(prompt_a_hover);
  71     RrAppearanceFree(prompt_a_press);
  72     RrAppearanceFree(prompt_a_msg);
  73 }
  74
  75 ObPrompt* prompt_new(const gchar *msg, const gchar *const *answers)
  76 {
  77     ObPrompt *self;
  78     XSetWindowAttributes attrib;
  79     guint i;
  80     const gchar *const *c;
  81
  82     attrib.override_redirect = TRUE;
  83     attrib.border_pixel = RrColorPixel(ob_rr_theme->osd_border_color);
  84
  85     self = g_new0(ObPrompt, 1);
  86     self->ref = 1;
  87     self->super.type = OB_WINDOW_CLASS_PROMPT;
  88     self->super.window = XCreateWindow(obt_display, obt_root(ob_screen),
  89                                        0, 0, 1, 1, ob_rr_theme->obwidth,
  90                                        CopyFromParent, InputOutput,
  91                                        CopyFromParent,
  92                                        CWOverrideRedirect | CWBorderPixel,
  93                                        &attrib);
  94     window_add(&self->super.window, PROMPT_AS_WINDOW(self));
  95
  96     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
  97
  98     self->msg.text = g_strdup(msg);
  99     self->msg.window = XCreateWindow(obt_display, self->super.window,
 100                                      0, 0, 1, 1, 0,
 101                                      CopyFromParent, InputOutput,
 102                                      CopyFromParent, 0, NULL);
 103     XMapWindow(obt_display, self->msg.window);
 104
 105     self->n_buttons = 0;
 106     for (c = answers; *c != NULL; ++c)
 107         ++self->n_buttons;
 108
 109     if (!self->n_buttons)
 110         self->n_buttons = 1;
 111
 112     self->button = g_new(ObPromptElement, self->n_buttons);
 113
 114     if (!answers) {
 115         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 116         self->button[0].text = g_strdup(_("OK"));
 117     }
 118     else {
 119         g_assert(self->n_buttons > 0);
 120         for (i = 0; i < self->n_buttons; ++i)
 121             self->button[i].text = g_strdup(answers[i]);
 122     }
 123
 124     for (i = 0; i < self->n_buttons; ++i) {
 125         self->button[i].window = XCreateWindow(obt_display, self->super.window,
 126                                                0, 0, 1, 1, 0,
 127                                                CopyFromParent, InputOutput,
 128                                                CopyFromParent, 0, NULL);
 129         XMapWindow(obt_display, self->button[i].window);
 130         window_add(&self->button[i].window, PROMPT_AS_WINDOW(self));
 131     }
 132
 133     return self;
 134 }
 135
 136 void prompt_ref(ObPrompt *self)
 137 {
 138     ++self->ref;
 139 }
 140
 141 void prompt_unref(ObPrompt *self)
 142 {
 143     if (self && --self->ref == 0) {
 144         guint i;
 145
 146         for (i = 0; i < self->n_buttons; ++i) {
 147             window_remove(self->button[i].window);
 148             XDestroyWindow(obt_display, self->button[i].window);
 149         }
 150
 151         XDestroyWindow(obt_display, self->msg.window);
 152
 153         RrAppearanceFree(self->a_bg);
 154
 155         window_remove(self->super.window);
 156         XDestroyWindow(obt_display, self->super.window);
 157         g_free(self);
 158     }
 159 }
 160
 161 static void prompt_layout(ObPrompt *self, const Rect *area)
 162 {
 163     gint l, r, t, b;
 164     guint i;
 165     gint allbuttonsw, allbuttonsh, buttonx;
 166     gint w, h;
 167
 168     const gint OUTSIDE_MARGIN = 4;
 169     const gint MSG_BUTTON_SEPARATION = 4;
 170     const gint BUTTON_SEPARATION = 4;
 171
 172     RrMargins(self->a_bg, &l, &t, &r, &b);
 173     l += OUTSIDE_MARGIN;
 174     t += OUTSIDE_MARGIN;
 175     r += OUTSIDE_MARGIN;
 176     b += OUTSIDE_MARGIN;
 177
 178     /* find the button sizes and how much space we need for them */
 179     allbuttonsw = allbuttonsh = 0;
 180     for (i = 0; i < self->n_buttons; ++i) {
 181         gint bw, bh;
 182
 183         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 184         prompt_a_hover->texture[0].data.text.string = self->button[i].text;
 185         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 186         RrMinSize(prompt_a_button, &bw, &bh);
 187         self->button[i].width = bw;
 188         self->button[i].height = bh;
 189         RrMinSize(prompt_a_hover, &bw, &bh);
 190         self->button[i].width = MAX(self->button[i].width, bw);
 191         self->button[i].height = MAX(self->button[i].height, bh);
 192         RrMinSize(prompt_a_press, &bw, &bh);
 193         self->button[i].width = MAX(self->button[i].width, bw);
 194         self->button[i].height = MAX(self->button[i].height, bh);
 195
 196         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 197         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 198     }
 199
 200     self->msg_wbound = MAX(allbuttonsw, area->width*3/5);
 201
 202     /* measure the text message area */
 203     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 204     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 205     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 206
 207     g_print("height %d\n", self->msg.height);
 208
 209     /* width and height inside the outer margins */
 210     w = MAX(self->msg.width, allbuttonsw);
 211     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 212
 213     /* position the text message */
 214     self->msg.x = l + (w - self->msg.width) / 2;
 215     self->msg.y = t;
 216
 217     /* position the button buttons */
 218     buttonx = l + (w - allbuttonsw) / 2;
 219     for (i = 0; i < self->n_buttons; ++i) {
 220         self->button[i].x = buttonx;
 221         buttonx += self->button[i].width + BUTTON_SEPARATION;
 222         self->button[i].y = t + h - allbuttonsh;
 223         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 224     }
 225
 226     /* size and position the toplevel window */
 227     self->width = w + l + r;
 228     self->height = h + t + b;
 229     self->x = (area->width - self->width) / 2;
 230     self->y = (area->height - self->height) / 2;
 231
 232     /* move and resize the actual windows */
 233     XMoveResizeWindow(obt_display, self->super.window,
 234                       self->x, self->y, self->width, self->height);
 235     XMoveResizeWindow(obt_display, self->msg.window,
 236                       self->msg.x, self->msg.y,
 237                       self->msg.width, self->msg.height);
 238     for (i = 0; i < self->n_buttons; ++i)
 239         XMoveResizeWindow(obt_display, self->button[i].window,
 240                           self->button[i].x, self->button[i].y,
 241                           self->button[i].width, self->button[i].height);
 242 }
 243
 244 static void render_button(ObPrompt *self, ObPromptElement *e)
 245 {
 246     prompt_a_button->surface.parent = self->a_bg;
 247     prompt_a_button->surface.parentx = e->x;
 248     prompt_a_button->surface.parentx = e->y;
 249
 250     prompt_a_button->texture[0].data.text.string = e->text;
 251     RrPaint(prompt_a_button, e->window, e->width, e->height);
 252 }
 253
 254 static void render_all(ObPrompt *self)
 255 {
 256     guint i;
 257
 258     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 259
 260     prompt_a_msg->surface.parent = self->a_bg;
 261     prompt_a_msg->surface.parentx = self->msg.x;
 262     prompt_a_msg->surface.parentx = self->msg.y;
 263
 264     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 265     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 266     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 267
 268     for (i = 0; i < self->n_buttons; ++i)
 269         render_button(self, &self->button[i]);
 270 }
 271
 272 void prompt_show(ObPrompt *self, const Rect *area)
 273 {
 274     if (self->mapped) return;
 275
 276     prompt_layout(self, area);
 277     render_all(self);
 278     XMapWindow(obt_display, self->super.window);
 279
 280     self->mapped = TRUE;
 281 }
 282
 283 void prompt_hide(ObPrompt *self)
 284 {
 285     XUnmapWindow(obt_display, self->super.window);
 286     self->mapped = FALSE;
 287 }