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 /* 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 = Window_Prompt;
  88     self->super.window = XCreateWindow(ob_display,
  89                                        RootWindow(ob_display, ob_screen),
  90                                        0, 0, 1, 1, 0,
  91                                        0, 0, 1, 1, ob_rr_theme->obwidth,
  92                                        CopyFromParent, InputOutput,
  93                                        CopyFromParent,
  94                                        CWOverrideRedirect | CWBorderPixel,
  95                                        &attrib);
  96     g_hash_table_insert(window_map, &self->super.window,
  97                         PROMPT_AS_WINDOW(self));
  98
  99     self->a_bg = RrAppearanceCopy(ob_rr_theme->osd_hilite_bg);
 100
 101     self->msg.text = g_strdup(msg);
 102     self->msg.window = XCreateWindow(ob_display, self->super.window,
 103                                      0, 0, 1, 1, 0,
 104                                      CopyFromParent, InputOutput,
 105                                      CopyFromParent, 0, NULL);
 106     XMapWindow(ob_display, self->msg.window);
 107
 108     self->n_buttons = 0;
 109     for (c = answers; *c != NULL; ++c)
 110         ++self->n_buttons;
 111
 112     if (!self->n_buttons)
 113         self->n_buttons = 1;
 114
 115     self->button = g_new(ObPromptElement, self->n_buttons);
 116
 117     if (!answers) {
 118         g_assert(self->n_buttons == 1); /* should be set to this above.. */
 119         self->button[0].text = g_strdup(_("OK"));
 120     }
 121     else {
 122         g_assert(self->n_buttons > 0);
 123         for (i = 0; i < self->n_buttons; ++i)
 124             self->button[i].text = g_strdup(answers[i]);
 125     }
 126
 127     for (i = 0; i < self->n_buttons; ++i) {
 128         self->button[i].window = XCreateWindow(ob_display, self->super.window,
 129                                                0, 0, 1, 1, 0,
 130                                                CopyFromParent, InputOutput,
 131                                                CopyFromParent, 0, NULL);
 132         XMapWindow(ob_display, self->button[i].window);
 133         g_hash_table_insert(window_map, &self->button[i].window,
 134                             PROMPT_AS_WINDOW(self));
 135     }
 136
 137     return self;
 138 }
 139
 140 void prompt_ref(ObPrompt *self)
 141 {
 142     ++self->ref;
 143 }
 144
 145 void prompt_unref(ObPrompt *self)
 146 {
 147     if (self && --self->ref == 0) {
 148         guint i;
 149
 150         for (i = 0; i < self->n_buttons; ++i) {
 151             g_hash_table_remove(window_map, &self->button[i].window);
 152             XDestroyWindow(ob_display, self->button[i].window);
 153         }
 154
 155         XDestroyWindow(ob_display, self->msg.window);
 156
 157         RrAppearanceFree(self->a_bg);
 158
 159         g_hash_table_remove(window_map, &self->super.window);
 160         XDestroyWindow(ob_display, self->super.window);
 161         g_free(self);
 162     }
 163 }
 164
 165 static void prompt_layout(ObPrompt *self, const Rect *area)
 166 {
 167     gint l, r, t, b;
 168     guint i;
 169     gint allbuttonsw, allbuttonsh, buttonx;
 170     gint w, h;
 171
 172     const gint OUTSIDE_MARGIN = 4;
 173     const gint MSG_BUTTON_SEPARATION = 4;
 174     const gint BUTTON_SEPARATION = 4;
 175
 176     RrMargins(self->a_bg, &l, &t, &r, &b);
 177     l += OUTSIDE_MARGIN;
 178     t += OUTSIDE_MARGIN;
 179     r += OUTSIDE_MARGIN;
 180     b += OUTSIDE_MARGIN;
 181
 182     /* find the button sizes and how much space we need for them */
 183     allbuttonsw = allbuttonsh = 0;
 184     for (i = 0; i < self->n_buttons; ++i) {
 185         gint bw, bh;
 186
 187         prompt_a_button->texture[0].data.text.string = self->button[i].text;
 188         prompt_a_hover->texture[0].data.text.string = self->button[i].text;
 189         prompt_a_press->texture[0].data.text.string = self->button[i].text;
 190         RrMinSize(prompt_a_button, &bw, &bh);
 191         self->button[i].width = bw;
 192         self->button[i].height = bh;
 193         RrMinSize(prompt_a_hover, &bw, &bh);
 194         self->button[i].width = MAX(self->button[i].width, bw);
 195         self->button[i].height = MAX(self->button[i].height, bh);
 196         RrMinSize(prompt_a_press, &bw, &bh);
 197         self->button[i].width = MAX(self->button[i].width, bw);
 198         self->button[i].height = MAX(self->button[i].height, bh);
 199
 200         allbuttonsw += self->button[i].width + (i > 0 ? BUTTON_SEPARATION : 0);
 201         allbuttonsh = MAX(allbuttonsh, self->button[i].height);
 202     }
 203
 204     self->msg_wbound = MAX(allbuttonsw, area->width*3/5);
 205
 206     /* measure the text message area */
 207     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 208     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 209     RrMinSize(prompt_a_msg, &self->msg.width, &self->msg.height);
 210
 211     g_print("height %d\n", self->msg.height);
 212
 213     /* width and height inside the outer margins */
 214     w = MAX(self->msg.width, allbuttonsw);
 215     h = self->msg.height + MSG_BUTTON_SEPARATION + allbuttonsh;
 216
 217     /* position the text message */
 218     self->msg.x = l + (w - self->msg.width) / 2;
 219     self->msg.y = t;
 220
 221     /* position the button buttons */
 222     buttonx = l + (w - allbuttonsw) / 2;
 223     for (i = 0; i < self->n_buttons; ++i) {
 224         self->button[i].x = buttonx;
 225         buttonx += self->button[i].width + BUTTON_SEPARATION;
 226         self->button[i].y = t + h - allbuttonsh;
 227         self->button[i].y += (allbuttonsh - self->button[i].height) / 2;
 228     }
 229
 230     /* size and position the toplevel window */
 231     self->width = w + l + r;
 232     self->height = h + t + b;
 233     self->x = (area->width - self->width) / 2;
 234     self->y = (area->height - self->height) / 2;
 235
 236     /* move and resize the actual windows */
 237     XMoveResizeWindow(ob_display, self->super.window,
 238                       self->x, self->y, self->width, self->height);
 239     XMoveResizeWindow(ob_display, self->msg.window,
 240                       self->msg.x, self->msg.y,
 241                       self->msg.width, self->msg.height);
 242     for (i = 0; i < self->n_buttons; ++i)
 243         XMoveResizeWindow(ob_display, self->button[i].window,
 244                           self->button[i].x, self->button[i].y,
 245                           self->button[i].width, self->button[i].height);
 246 }
 247
 248 static void render_button(ObPrompt *self, ObPromptElement *e)
 249 {
 250     prompt_a_button->surface.parent = self->a_bg;
 251     prompt_a_button->surface.parentx = e->x;
 252     prompt_a_button->surface.parentx = e->y;
 253
 254     prompt_a_button->texture[0].data.text.string = e->text;
 255     RrPaint(prompt_a_button, e->window, e->width, e->height);
 256 }
 257
 258 static void render_all(ObPrompt *self)
 259 {
 260     guint i;
 261
 262     RrPaint(self->a_bg, self->super.window, self->width, self->height);
 263
 264     prompt_a_msg->surface.parent = self->a_bg;
 265     prompt_a_msg->surface.parentx = self->msg.x;
 266     prompt_a_msg->surface.parentx = self->msg.y;
 267
 268     prompt_a_msg->texture[0].data.text.string = self->msg.text;
 269     prompt_a_msg->texture[0].data.text.maxwidth = self->msg_wbound;
 270     RrPaint(prompt_a_msg, self->msg.window, self->msg.width, self->msg.height);
 271
 272     for (i = 0; i < self->n_buttons; ++i)
 273         render_button(self, &self->button[i]);
 274 }
 275
 276 void prompt_show(ObPrompt *self, const Rect *area)
 277 {
 278     if (self->mapped) return;
 279
 280     prompt_layout(self, area);
 281     render_all(self);
 282     XMapWindow(ob_display, self->super.window);
 283
 284     self->mapped = TRUE;
 285 }
 286
 287 void prompt_hide(ObPrompt *self)
 288 {
 289     XUnmapWindow(ob_display, self->super.window);
 290     self->mapped = FALSE;
 291 }