src/layout.c

   1 /*
   2  * Copyright © 2019 Collabora, Ltd.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial
  14  * portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include "ivi-compositor.h"
  27
  28 #include <assert.h>
  29 #include <string.h>
  30
  31 #include <libweston-6/compositor.h>
  32 #include <libweston-6/libweston-desktop.h>
  33
  34 static void
  35 ivi_background_init(struct ivi_compositor *ivi, struct ivi_output *output)
  36 {
  37         struct weston_output *woutput = output->output;
  38         struct ivi_surface *bg = output->background;
  39         struct weston_view *view;
  40
  41         if (!bg) {
  42                 weston_log("WARNING: Output does not have a background\n");
  43                 return;
  44         }
  45
  46         assert(bg->role == IVI_SURFACE_ROLE_BACKGROUND);
  47
  48         view = bg->view;
  49
  50         weston_view_set_output(view, woutput);
  51         weston_view_set_position(view, woutput->x, woutput->y);
  52
  53         view->is_mapped = true;
  54         view->surface->is_mapped = true;
  55
  56         weston_layer_entry_insert(&ivi->background.view_list, &view->layer_link);
  57 }
  58
  59 static void
  60 ivi_panel_init(struct ivi_compositor *ivi, struct ivi_output *output,
  61                struct ivi_surface *panel)
  62 {
  63         struct weston_output *woutput = output->output;
  64         struct weston_desktop_surface *dsurface;
  65         struct weston_view *view;
  66         struct weston_geometry geom;
  67         int x = woutput->x;
  68         int y = woutput->y;
  69
  70         if (!panel)
  71                 return;
  72
  73         assert(panel->role == IVI_SURFACE_ROLE_PANEL);
  74         dsurface = panel->dsurface;
  75         view = panel->view;
  76         geom = weston_desktop_surface_get_geometry(dsurface);
  77
  78         switch (panel->panel.edge) {
  79         case AGL_SHELL_EDGE_TOP:
  80                 output->area.y += geom.height;
  81                 output->area.height -= geom.height;
  82                 break;
  83         case AGL_SHELL_EDGE_BOTTOM:
  84                 y += woutput->height - geom.height;
  85                 output->area.height -= geom.height;
  86                 break;
  87         case AGL_SHELL_EDGE_LEFT:
  88                 output->area.x += geom.width;
  89                 output->area.width -= geom.width;
  90                 break;
  91         case AGL_SHELL_EDGE_RIGHT:
  92                 x += woutput->width - geom.width;
  93                 output->area.width -= geom.width;
  94                 break;
  95         }
  96
  97         x -= geom.x;
  98         y -= geom.y;
  99
 100         weston_view_set_output(view, woutput);
 101         weston_view_set_position(view, x, y);
 102
 103         view->is_mapped = true;
 104         view->surface->is_mapped = true;
 105
 106         weston_layer_entry_insert(&ivi->panel.view_list, &view->layer_link);
 107 }
 108
 109 /*
 110  * Initializes all static parts of the layout, i.e. the background and panels.
 111  */
 112 void
 113 ivi_layout_init(struct ivi_compositor *ivi, struct ivi_output *output)
 114 {
 115         ivi_background_init(ivi, output);
 116
 117         output->area.x = 0;
 118         output->area.y = 0;
 119         output->area.width = output->output->width;
 120         output->area.height = output->output->height;
 121
 122         ivi_panel_init(ivi, output, output->top);
 123         ivi_panel_init(ivi, output, output->bottom);
 124         ivi_panel_init(ivi, output, output->left);
 125         ivi_panel_init(ivi, output, output->right);
 126
 127         weston_compositor_schedule_repaint(ivi->compositor);
 128
 129         weston_log("Usable area: %dx%d+%d,%d\n",
 130                    output->area.width, output->area.height,
 131                    output->area.x, output->area.y);
 132 }
 133
 134 static struct ivi_surface *
 135 ivi_find_app(struct ivi_compositor *ivi, const char *app_id)
 136 {
 137         struct ivi_surface *surf;
 138         const char *id;
 139
 140         wl_list_for_each(surf, &ivi->surfaces, link) {
 141                 id = weston_desktop_surface_get_app_id(surf->dsurface);
 142                 if (id && strcmp(app_id, id) == 0)
 143                         return surf;
 144         }
 145
 146         return NULL;
 147 }
 148
 149 static void
 150 ivi_layout_activate_complete(struct ivi_output *output,
 151                              struct ivi_surface *surf)
 152 {
 153         struct ivi_compositor *ivi = output->ivi;
 154         struct weston_output *woutput = output->output;
 155         struct weston_view *view = surf->view;
 156
 157         if (weston_view_is_mapped(view)) {
 158                 weston_layer_entry_remove(&view->layer_link);
 159         }
 160
 161         weston_view_set_output(view, woutput);
 162         weston_view_set_position(view,
 163                                  woutput->x + output->area.x,
 164                                  woutput->y + output->area.y);
 165
 166         view->is_mapped = true;
 167         view->surface->is_mapped = true;
 168
 169         if (output->active) {
 170                 output->active->view->is_mapped = false;
 171                 output->active->view->surface->is_mapped = false;
 172
 173                 weston_layer_entry_remove(&output->active->view->layer_link);
 174         }
 175         output->active = surf;
 176
 177         weston_layer_entry_insert(&ivi->normal.view_list, &view->layer_link);
 178         weston_view_update_transform(view);
 179
 180         weston_view_schedule_repaint(view);
 181         surf->desktop.pending_output = NULL;
 182 }
 183
 184 void
 185 ivi_layout_desktop_committed(struct ivi_surface *surf)
 186 {
 187         struct weston_desktop_surface *dsurf = surf->dsurface;
 188         struct weston_geometry geom = weston_desktop_surface_get_geometry(dsurf);
 189         struct ivi_output *output;
 190
 191         assert(surf->role == IVI_SURFACE_ROLE_DESKTOP);
 192
 193         output = surf->desktop.pending_output;
 194         if (!output)
 195                 return;
 196
 197         if (!weston_desktop_surface_get_maximized(dsurf) ||
 198             geom.width != output->area.width ||
 199             geom.height != output->area.height)
 200                 return;
 201
 202         ivi_layout_activate_complete(output, surf);
 203 }
 204
 205 void
 206 ivi_layout_activate(struct ivi_output *output, const char *app_id)
 207 {
 208         struct ivi_compositor *ivi = output->ivi;
 209         struct ivi_surface *surf;
 210         struct weston_desktop_surface *dsurf;
 211         struct weston_view *view;
 212         struct weston_geometry geom;
 213
 214         surf = ivi_find_app(ivi, app_id);
 215         if (!surf)
 216                 return;
 217
 218         weston_log("Found app_id %s\n", app_id);
 219
 220         if (surf == output->active)
 221                 return;
 222
 223         dsurf = surf->dsurface;
 224         view = surf->view;
 225         geom = weston_desktop_surface_get_geometry(dsurf);
 226
 227         if (weston_desktop_surface_get_maximized(dsurf) &&
 228             geom.width == output->area.width &&
 229             geom.height == output->area.height) {
 230                 ivi_layout_activate_complete(output, surf);
 231                 return;
 232         }
 233
 234         weston_desktop_surface_set_maximized(dsurf, true);
 235         weston_desktop_surface_set_size(dsurf,
 236                                         output->area.width,
 237                                         output->area.height);
 238
 239         /*
 240          * If the view isn't mapped, we put it onto the hidden layer so it will
 241          * start receiving frame events, and will be able to act on our
 242          * configure event.
 243          */
 244         if (!weston_view_is_mapped(view)) {
 245                 view->is_mapped = true;
 246                 view->surface->is_mapped = true;
 247
 248                 weston_view_set_output(view, output->output);
 249                 weston_layer_entry_insert(&ivi->hidden.view_list, &view->layer_link);
 250                 weston_view_schedule_repaint(view);
 251         }
 252
 253         surf->desktop.pending_output = output;
 254 }