mouse.c

   1 /*
   2  * mouse.c - mouse managing
   3  *
   4  * Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
   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  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include <math.h>
  23
  24 #include "mouse.h"
  25 #include "screen.h"
  26 #include "tag.h"
  27 #include "event.h"
  28 #include "client.h"
  29 #include "titlebar.h"
  30 #include "layouts/floating.h"
  31 #include "layouts/tile.h"
  32 #include "common/xscreen.h"
  33
  34 #define MOUSEMASK      (ButtonPressMask | ButtonReleaseMask | PointerMotionMask)
  35
  36 extern AwesomeConf globalconf;
  37
  38 static area_t
  39 mouse_snapclienttogeometry_outside(area_t geometry, area_t snap_geometry, int snap)
  40 {
  41     if(geometry.x < snap + snap_geometry.x + snap_geometry.width
  42        && geometry.x > snap_geometry.x + snap_geometry.width)
  43         geometry.x = snap_geometry.x + snap_geometry.width;
  44     else if(geometry.x + geometry.width < snap_geometry.x
  45             && geometry.x + geometry.width > snap_geometry.x - snap)
  46         geometry.x = snap_geometry.x - geometry.width;
  47
  48
  49     if(geometry.y < snap + snap_geometry.y + snap_geometry.height
  50        && geometry.y > snap_geometry.y + snap_geometry.height)
  51         geometry.y = snap_geometry.y + snap_geometry.height;
  52     else if(geometry.y + geometry.height < snap_geometry.y
  53             && geometry.y + geometry.height > snap_geometry.y - snap)
  54         geometry.y = snap_geometry.y - geometry.height;
  55
  56     return geometry;
  57 }
  58
  59 static area_t
  60 mouse_snapclienttogeometry_inside(area_t geometry, area_t snap_geometry, int snap)
  61 {
  62     if(abs(geometry.x) < snap + snap_geometry.x && geometry.x > snap_geometry.x)
  63         geometry.x = snap_geometry.x;
  64     else if(abs((snap_geometry.x + snap_geometry.width) - (geometry.x + geometry.width))
  65             < snap)
  66         geometry.x = snap_geometry.x + snap_geometry.width - geometry.width;
  67     if(abs(geometry.y) < snap + snap_geometry.y && geometry.y > snap_geometry.y)
  68         geometry.y = snap_geometry.y;
  69     else if(abs((snap_geometry.y + snap_geometry.height) - (geometry.y + geometry.height))
  70             < snap)
  71         geometry.y = snap_geometry.y + snap_geometry.height - geometry.height;
  72
  73     return geometry;
  74 }
  75
  76 static area_t
  77 mouse_snapclient(Client *c, area_t geometry)
  78 {
  79     Client *snapper;
  80     int snap = globalconf.screens[c->screen].snap;
  81     area_t snapper_geometry;
  82     area_t screen_geometry =
  83         screen_get_area(c->screen,
  84                         globalconf.screens[c->screen].statusbar,
  85                         &globalconf.screens[c->screen].padding);
  86
  87     geometry = titlebar_geometry_add(&c->titlebar, geometry);
  88     geometry.width += 2 * c->border;
  89     geometry.height += 2 * c->border;
  90
  91     geometry =
  92         mouse_snapclienttogeometry_inside(geometry, screen_geometry, snap);
  93
  94     for(snapper = globalconf.clients; snapper; snapper = snapper->next)
  95         if(snapper != c && client_isvisible(c, c->screen))
  96         {
  97             snapper_geometry = snapper->geometry;
  98             snapper_geometry.width += 2 * c->border;
  99             snapper_geometry.height += 2 * c->border;
 100             snapper_geometry = titlebar_geometry_add(&snapper->titlebar,
 101                                                      snapper_geometry);
 102             geometry =
 103                 mouse_snapclienttogeometry_outside(geometry,
 104                                                    snapper_geometry,
 105                                                    snap);
 106         }
 107
 108     geometry.width -= 2 * c->border;
 109     geometry.height -= 2 * c->border;
 110     return titlebar_geometry_remove(&c->titlebar, geometry);
 111 }
 112
 113 static void
 114 mouse_resizebar_draw(DrawCtx *ctx, style_t style, SimpleWindow *sw, area_t geometry, int border)
 115 {
 116     area_t draw_geometry = { 0, 0, ctx->width, ctx->height, NULL, NULL };
 117     char size[64];
 118
 119     snprintf(size, sizeof(size), "%dx%d+%d+%d",
 120              geometry.x, geometry.y, geometry.width, geometry.height);
 121     draw_text(ctx, draw_geometry, AlignCenter, style.font->height / 2, size, style);
 122     simplewindow_move(sw,
 123                       geometry.x + ((2 * border + geometry.width) - sw->geometry.width) / 2,
 124                       geometry.y + ((2 * border + geometry.height) - sw->geometry.height) / 2);
 125     simplewindow_refresh_drawable(sw, sw->phys_screen);
 126 }
 127
 128 /** Move client with the mouse.
 129  * \param screen Screen ID
 130  * \param arg Unused
 131  * \ingroup ui_callback
 132  */
 133 void
 134 uicb_client_movemouse(int screen, char *arg __attribute__ ((unused)))
 135 {
 136     int x, y, ocx, ocy, di, newscreen;
 137     unsigned int dui;
 138     Window dummy, child;
 139     XEvent ev;
 140     area_t geometry;
 141     Client *c = globalconf.focus->client, *target;
 142     Layout *layout = layout_get_current(screen);
 143     SimpleWindow *sw = NULL;
 144     DrawCtx *ctx;
 145     style_t style;
 146
 147     if(!c
 148        || XGrabPointer(globalconf.display,
 149                        RootWindow(globalconf.display, c->phys_screen),
 150                        False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
 151                        RootWindow(globalconf.display, c->phys_screen),
 152                        globalconf.cursor[CurMove], CurrentTime) != GrabSuccess)
 153         return;
 154
 155     XQueryPointer(globalconf.display,
 156                   RootWindow(globalconf.display, c->phys_screen),
 157                   &dummy, &dummy, &x, &y, &di, &di, &dui);
 158
 159     geometry = c->geometry;
 160     ocx = geometry.x;
 161     ocy = geometry.y;
 162     c->ismax = False;
 163
 164     style = globalconf.screens[c->screen].styles.focus;
 165
 166     if(c->isfloating || layout->arrange == layout_floating)
 167     {
 168         sw = simplewindow_new(globalconf.display, c->phys_screen, 0, 0,
 169                               draw_textwidth(globalconf.display,
 170                                              globalconf.screens[c->screen].styles.focus.font,
 171                                              "0000x0000+0000+0000") + style.font->height,
 172                               1.5 * style.font->height, 0);
 173
 174         ctx = draw_context_new(globalconf.display, sw->phys_screen,
 175                                sw->geometry.width, sw->geometry.height,
 176                                sw->drawable);
 177         XMapRaised(globalconf.display, sw->window);
 178         mouse_resizebar_draw(ctx, style, sw, geometry, c->border);
 179     }
 180
 181     for(;;)
 182     {
 183         XMaskEvent(globalconf.display, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
 184         switch (ev.type)
 185         {
 186           case ButtonRelease:
 187             XUngrabPointer(globalconf.display, CurrentTime);
 188             if(sw)
 189             {
 190                 draw_context_delete(&ctx);
 191                 simplewindow_delete(&sw);
 192             }
 193             return;
 194           case ConfigureRequest:
 195             event_handle_configurerequest(&ev);
 196             break;
 197           case Expose:
 198             event_handle_expose(&ev);
 199             break;
 200           case MapRequest:
 201             event_handle_maprequest(&ev);
 202             break;
 203           case EnterNotify:
 204             event_handle_enternotify(&ev);
 205             break;
 206           case MotionNotify:
 207             if(c->isfloating || layout->arrange == layout_floating)
 208             {
 209                 geometry.x = ocx + (ev.xmotion.x - x);
 210                 geometry.y = ocy + (ev.xmotion.y - y);
 211
 212                 geometry = mouse_snapclient(c, geometry);
 213
 214                 c->ismoving = True;
 215                 client_resize(c, geometry, False);
 216                 c->ismoving = False;
 217                 if(sw)
 218                     mouse_resizebar_draw(ctx, style, sw, c->geometry, c->border);
 219             }
 220             else
 221             {
 222                 XQueryPointer(globalconf.display,
 223                               RootWindow(globalconf.display, c->phys_screen),
 224                               &dummy, &child, &x, &y, &di, &di, &dui);
 225                 if((newscreen = screen_get_bycoord(globalconf.screens_info, c->screen, x, y)) != c->screen)
 226                 {
 227                     move_client_to_screen(c, newscreen, True);
 228                     globalconf.screens[c->screen].need_arrange = True;
 229                     if(layout_get_current(newscreen)->arrange != layout_floating)
 230                         globalconf.screens[newscreen].need_arrange = True;
 231                     layout_refresh();
 232                 }
 233                 if((target = client_get_bywin(globalconf.clients, child))
 234                    && target != c && !target->isfloating)
 235                 {
 236                     client_list_swap(&globalconf.clients, c, target);
 237                     globalconf.screens[c->screen].need_arrange = True;
 238                     layout_refresh();
 239                 }
 240             }
 241             while(XCheckMaskEvent(globalconf.display, PointerMotionMask, &ev));
 242             break;
 243         }
 244     }
 245 }
 246
 247 /** Resize client with the mouse.
 248  * \param screen Screen ID
 249  * \param arg Unused
 250  * \ingroup ui_callback
 251  */
 252 void
 253 uicb_client_resizemouse(int screen, char *arg __attribute__ ((unused)))
 254 {
 255     int ocx = 0, ocy = 0, n;
 256     XEvent ev;
 257     Client *c = globalconf.focus->client;
 258     Tag **curtags = tags_get_current(screen);
 259     Layout *layout = curtags[0]->layout;
 260     area_t area = { 0, 0, 0, 0, NULL, NULL }, geometry = { 0, 0, 0, 0, NULL, NULL };
 261     double mwfact;
 262     SimpleWindow *sw = NULL;
 263     DrawCtx *ctx = NULL;
 264     style_t style;
 265
 266     /* only handle floating and tiled layouts */
 267     if(!c || c->isfixed)
 268         return;
 269
 270     style = globalconf.screens[c->screen].styles.focus;
 271
 272     if(layout->arrange == layout_floating || c->isfloating)
 273     {
 274         ocx = c->geometry.x;
 275         ocy = c->geometry.y;
 276         c->ismax = False;
 277
 278         sw = simplewindow_new(globalconf.display, c->phys_screen, 0, 0,
 279                               draw_textwidth(globalconf.display,
 280                                              globalconf.screens[c->screen].styles.focus.font,
 281                                              "0000x0000+0000+0000") + style.font->height,
 282                               1.5 * style.font->height, 0);
 283
 284         ctx = draw_context_new(globalconf.display, sw->phys_screen,
 285                                sw->geometry.width, sw->geometry.height,
 286                                sw->drawable);
 287         XMapRaised(globalconf.display, sw->window);
 288         mouse_resizebar_draw(ctx, style, sw, c->geometry, c->border);
 289     }
 290     else if (layout->arrange == layout_tile || layout->arrange == layout_tileleft
 291              || layout->arrange == layout_tilebottom || layout->arrange == layout_tiletop)
 292     {
 293         for(n = 0, c = globalconf.clients; c; c = c->next)
 294             if(IS_TILED(c, screen))
 295                 n++;
 296
 297         if(n <= curtags[0]->nmaster) return;
 298
 299         for(c = globalconf.clients; c && !IS_TILED(c, screen); c = c->next);
 300         if(!c) return;
 301
 302         area = screen_get_area(screen,
 303                                globalconf.screens[c->screen].statusbar,
 304                                &globalconf.screens[c->screen].padding);
 305     }
 306     else
 307         return;
 308
 309     if(XGrabPointer(globalconf.display,
 310                     RootWindow(globalconf.display, c->phys_screen),
 311                     False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
 312                     RootWindow(globalconf.display, c->phys_screen),
 313                     globalconf.cursor[CurResize], CurrentTime) != GrabSuccess)
 314         return;
 315
 316     if(curtags[0]->layout->arrange == layout_tileleft)
 317         XWarpPointer(globalconf.display, None, c->win, 0, 0, 0, 0, 0,
 318                      c->geometry.height + c->border - 1);
 319     else if(curtags[0]->layout->arrange == layout_tilebottom)
 320         XWarpPointer(globalconf.display, None, c->win, 0, 0, 0, 0,
 321                      c->geometry.width + c->border - 1, c->geometry.height + c->border - 1);
 322     else if(curtags[0]->layout->arrange == layout_tiletop)
 323         XWarpPointer(globalconf.display, None, c->win, 0, 0, 0, 0,
 324                      c->geometry.width + c->border - 1, 0);
 325     else
 326         XWarpPointer(globalconf.display, None, c->win, 0, 0, 0, 0,
 327                      c->geometry.width + c->border - 1, c->geometry.height + c->border - 1);
 328
 329     for(;;)
 330     {
 331         XMaskEvent(globalconf.display, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
 332         switch (ev.type)
 333         {
 334           case ButtonRelease:
 335             XUngrabPointer(globalconf.display, CurrentTime);
 336             if(sw)
 337             {
 338                 draw_context_delete(&ctx);
 339                 simplewindow_delete(&sw);
 340             }
 341             return;
 342           case ConfigureRequest:
 343             event_handle_configurerequest(&ev);
 344             break;
 345           case Expose:
 346             event_handle_expose(&ev);
 347             break;
 348           case MapRequest:
 349             event_handle_maprequest(&ev);
 350             break;
 351           case MotionNotify:
 352             if(layout->arrange == layout_floating || c->isfloating)
 353             {
 354                 if((geometry.width = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
 355                     geometry.width = 1;
 356                 if((geometry.height = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
 357                     geometry.height = 1;
 358                 geometry.x = c->geometry.x;
 359                 geometry.y = c->geometry.y;
 360                 client_resize(c, geometry, True);
 361                 if(sw)
 362                     mouse_resizebar_draw(ctx, style, sw, c->geometry, c->border);
 363             }
 364             else if(layout->arrange == layout_tile || layout->arrange == layout_tileleft
 365                     || layout->arrange == layout_tiletop || layout->arrange == layout_tilebottom)
 366             {
 367                 if(layout->arrange == layout_tile)
 368                     mwfact = (double) (ev.xmotion.x - area.x) / area.width;
 369                 else if(curtags[0]->layout->arrange == layout_tileleft)
 370                     mwfact = 1 - (double) (ev.xmotion.x - area.x) / area.width;
 371                 else if(curtags[0]->layout->arrange == layout_tilebottom)
 372                     mwfact = (double) (ev.xmotion.y - area.y) / area.height;
 373                 else
 374                     mwfact = 1 - (double) (ev.xmotion.y - area.y) / area.height;
 375                 if(mwfact < 0.1) mwfact = 0.1;
 376                 else if(mwfact > 0.9) mwfact = 0.9;
 377                 if(fabs(curtags[0]->mwfact - mwfact) >= 0.01)
 378                 {
 379                     curtags[0]->mwfact = mwfact;
 380                     globalconf.screens[screen].need_arrange = True;
 381                     layout_refresh();
 382                     while(XCheckMaskEvent(globalconf.display, PointerMotionMask, &ev));
 383                 }
 384             }
 385
 386             break;
 387         }
 388     }
 389     p_delete(&curtags);
 390 }
 391
 392 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80