better handling different window state, support fullscreen mode

cursor.c

@@ -52,17 +52,18 @@ void diyac_reset_cursor_mode(struct diyac_server *server)
 
 static void process_cursor_move(struct diyac_server *server, uint32_t time)
 {
-    /* Move the grabbed toplevel to the new position. */
     struct diyac_view *toplevel = server->grabbed_view;
-    if (toplevel->state != DIYAC_VIEW_NORMAL)
+    /* Move the grabbed toplevel to the new position. */
+    if (toplevel->state.fullscreen)
     {
-        // cancel maximize or fullscreen state
+        return;
-        wlr_xdg_toplevel_set_maximized(toplevel->xdg_toplevel, false);
+    }
-        wlr_xdg_toplevel_set_fullscreen(toplevel->xdg_toplevel, false);
+    if (toplevel->state.maximized)
+    {
+        toplevel->requested.maximized = false;
         // move the windows to cursor
         server->grab_x = toplevel->original.width * server->grab_x / toplevel->output->usable_area.width;
     }
-    toplevel->state = DIYAC_VIEW_NORMAL;
     toplevel->original.y = server->seat.cursor->y - server->grab_y;
     toplevel->original.x = server->seat.cursor->x - server->grab_x;
 
@@ -87,6 +88,10 @@ static void process_cursor_resize(struct diyac_server *server, uint32_t time)
      * size, then commit any movement that was prepared.
      */
     struct diyac_view *toplevel = server->grabbed_view;
+    if(toplevel->state.fullscreen)
+    {
+        return;
+    }
     double border_x = server->seat.cursor->x - server->grab_x;
     double border_y = server->seat.cursor->y - server->grab_y;
     int new_left = server->grab_geobox.x;
@@ -135,7 +140,7 @@ static void process_cursor_resize(struct diyac_server *server, uint32_t time)
     int new_height = new_bottom - new_top;
     toplevel->original.width = new_width;
     toplevel->original.height = new_height;
-    toplevel->state = DIYAC_VIEW_NORMAL;
+    toplevel->requested.maximized = false;
     diyac_view_update_geometry(toplevel, false);
     /*
     wlr_scene_node_set_position(&toplevel->scene_tree->node,

diyac.h

@@ -37,12 +37,15 @@ enum diyac_node_descriptor_type
     // LAB_NODE_TREE,
     // LAB_NODE_SSD_BUTTON,
 };
-enum diyac_view_state
+struct diyac_view_state
 {
-    DIYAC_VIEW_NORMAL = 0,
+    bool maximized;
-    DIYAC_VIEW_MAXIMIZE,
+    bool fullscreen;
-    DIYAC_VIEW_MINIMIZE,
+    bool minimized;
-    DIYAC_VIEW_FULL_SCREEN,
+    /**
+     * if neither state is on, it means that 
+     * the current state is normal
+    */
 };
 
 struct diyac_seat
@@ -166,7 +169,8 @@ struct diyac_view
     struct wlr_xdg_surface *xdg_surface;
     struct wlr_xdg_toplevel *xdg_toplevel;
     struct wlr_scene_tree *scene_tree;
-    enum diyac_view_state state;
+    struct diyac_view_state state;
+    struct diyac_view_state requested;
     /*
      * Geometry of the wlr_surface contained within the view, as
      * currently displayed. Should be kept in sync with the

view.c

@@ -155,91 +155,107 @@ void diyac_arrange_all_views(struct diyac_server *server)
 bool diyac_view_update_geometry(struct diyac_view *view, bool grabbed)
 {
     assert(view);
-    bool adjusted = false;
+    struct wlr_box geo_box, intersect_box;
-    struct wlr_box geo_box;
     struct wlr_box *geometry = &view->original;
     // if (wlr_output_layout_intersects(view->server->output_layout,
     //                                  view->output->wlr_output, &view->current))
     //{
+    if (!view->mapped)
+    {
+        wlr_xdg_surface_schedule_configure(view->xdg_toplevel->base);
+        return false;
+    }
     struct wlr_box usable = diyac_output_usable_area(view->output);
     wlr_log(WLR_DEBUG, "diyac_view_update_geometry: current: [%d,%d,%d,%d], usable: [%d,%d,%d,%d] ",
             geometry->x, geometry->y, geometry->width, geometry->height,
             usable.x, usable.y, usable.width, usable.height);
     struct diyac_server *server = view->server;
-    if (!view->mapped)
+    wlr_box_intersection(&intersect_box,geometry, &usable);
+    wlr_xdg_surface_get_geometry(view->xdg_toplevel->base, &geo_box);
+    if ( wlr_box_equal(geometry, &geo_box) && diyac_view_state_equal(view->state,view->requested) && wlr_box_empty(&intersect_box))
     {
-        view->state = DIYAC_VIEW_NORMAL;
+        wlr_log(WLR_INFO, "No geometry update needed");
         return false;
     }
-    switch (view->state)
+     // invalidate old state if change state
+    if(view->state.fullscreen && !view->requested.fullscreen)
+    {
+        wlr_xdg_toplevel_set_fullscreen(view->xdg_toplevel, false);
+        wlr_scene_node_set_enabled(&view->output->scenes.top->node, true);
+        view->state.fullscreen = false;
+    }
+    if(view->state.maximized && !view->requested.maximized)
+    {
+        wlr_xdg_toplevel_set_maximized(view->xdg_toplevel, false);
+        view->state.maximized = false;
+    }
+    view->state = view->requested;
+
+    if(view->requested.minimized)
+    {
+        // TODO implement minimize
+        return false;
+    }
+    else if(view->requested.fullscreen)
+    {
+        wlr_scene_node_set_enabled(&view->output->scenes.top->node, false);
+        wlr_scene_node_set_position(&view->scene_tree->node, 0, 0);
+        wlr_xdg_toplevel_set_size(view->xdg_toplevel, view->output->wlr_output->width, view->output->wlr_output->height);
+        wlr_xdg_toplevel_set_fullscreen(view->xdg_toplevel, false);
+        return true;
+    }
+    else if(view->requested.maximized)
     {
-    case DIYAC_VIEW_MAXIMIZE:
-        /**
-         * We dont change the current_view geometry in maximize state
-         *
-         */
         wlr_scene_node_set_position(&view->scene_tree->node, usable.x, usable.y);
         wlr_xdg_toplevel_set_size(view->xdg_toplevel, usable.width, usable.height);
+        wlr_xdg_toplevel_set_maximized(view->xdg_toplevel, true);
         return true;
-    case DIYAC_VIEW_MINIMIZE:
-            view->state = DIYAC_VIEW_NORMAL;
-            wlr_log(WLR_INFO, "diyac_view_update_geometry: minimize ignore");
-        return false;
-    case DIYAC_VIEW_FULL_SCREEN:
-        /*TODO: implement full-screen */
-        //view->state = DIYAC_VIEW_NORMAL;
-        wlr_log(WLR_INFO, "diyac_view_update_geometry: full-screen ignore");
-        return false;
-
-    default:
-        wlr_xdg_surface_get_geometry(view->xdg_toplevel->base, &geo_box);
-        if (!wlr_box_equal(geometry, &geo_box))
-        {
-            adjusted = true;
     }
+    else
+    {
         // if (wlr_output_layout_intersects(view->server->output_layout,
         //                              view->output->wlr_output, &view->current))
         //{
         /**Normal state, recalculate current geometry*/
+        struct diyac_view * root = diyac_get_root_view(view);
+        if(!root)
+        {
+            root = view;
+        }
+        if(!root->state.fullscreen)
+        {
+            // Only adjust position only when not in fullscreen mode
 
             if (!grabbed && geometry->x < usable.x)
             {
                 geometry->x = usable.x;
-            adjusted = true;
             }
             if (!grabbed && geometry->y < usable.y)
             {
                 geometry->y = usable.y;
-            adjusted = true;
             }
             if (grabbed && server->seat.cursor->x <= usable.x)
             {
                 geometry->x = usable.x - server->grab_x;
-            adjusted = true;
             }
             if (grabbed && server->seat.cursor->y <= usable.y)
             {
                 geometry->y = usable.y;
-            adjusted = true;
             }
             if (grabbed && server->seat.cursor->x >= usable.x + usable.width)
             {
                 geometry->x = usable.x + usable.width - server->grab_x;
-            adjusted = true;
             }
             if (grabbed && server->seat.cursor->y >= usable.y + usable.height)
             {
                 geometry->y = usable.y + usable.height - server->grab_y;
-            adjusted = true;
+            }
         }
 
-        if (adjusted)
-        {
         wlr_log(WLR_DEBUG, "diyac_view_update_geometry: updating geometry: %d %d %d %d", geometry->x, geometry->y, geometry->width, geometry->height);
         wlr_scene_node_set_position(&view->scene_tree->node, geometry->x, geometry->y);
         wlr_xdg_toplevel_set_size(view->xdg_toplevel, geometry->width, geometry->height);
-        }
+        return true;
-        return adjusted;
     }
 }
 
@@ -278,14 +294,14 @@ struct diyac_view *diyac_get_root_view(struct diyac_view *view)
 struct wlr_box diyac_view_get_geometry(struct diyac_view *view)
 {
     struct wlr_box box;
-    switch(view->state)
+    if(view->state.fullscreen)
     {
-        case DIYAC_VIEW_FULL_SCREEN:
         wlr_output_layout_get_box(view->server->output_layout, view->output->wlr_output, &box);
         return box;
-        case DIYAC_VIEW_MAXIMIZE:
-            return view->output->usable_area;
-        default:
-            return view->original;
     }
+    if(view->state.maximized)
+    {
+        return view->output->usable_area;
+    }
+    return view->original;
 }

view.h

@@ -1,6 +1,9 @@
 #ifndef DIYAC_VIEW_H
 #define DIYAC_VIEW_H
 #include "diyac.h"
+#define diyac_view_state_equal(a,b) ((a.fullscreen == b.fullscreen) \
+    && (a.maximized == b.maximized) \
+    && (a.minimized == b.minimized))
 void diyac_focus_view(struct diyac_view *toplevel, bool raise);
 struct diyac_view *diyac_view_at(
     struct diyac_server *server, double lx, double ly,

xdg.c

@@ -79,10 +79,7 @@ static void xdg_toplevel_map(struct wl_listener *listener, void *data)
         toplevel->original.height = toplevel->output->usable_area.height;
     }
     diyac_view_update_geometry(toplevel, false);
-    if (toplevel->state != DIYAC_VIEW_MINIMIZE)
-    {
     diyac_focus_view(toplevel, false);
-    }
 }
 
 static void xdg_toplevel_unmap(struct wl_listener *listener, void *data)
@@ -95,6 +92,14 @@ static void xdg_toplevel_unmap(struct wl_listener *listener, void *data)
     {
         diyac_reset_cursor_mode(toplevel->server);
     }
+    if(toplevel->state.fullscreen)
+    {
+        /**
+         * When a client exit during fullscreen mode, the top layer shall
+         * be restored as it is currently disabled
+        */
+        wlr_scene_node_set_enabled(&toplevel->output->scenes.top->node, true);
+    }
     wl_list_remove(&toplevel->link);
 }
 
@@ -106,7 +111,6 @@ static void xdg_toplevel_request_move(
      * decorations. Note that a more sophisticated compositor should check the
      * provided serial against a list of button press serials sent to this
      * client, to prevent the client from requesting this whenever they want. */
-    wlr_log(WLR_INFO, "Request move");
     struct diyac_view *toplevel = wl_container_of(listener, toplevel, request_move);
     begin_interactive(toplevel, DIYAC_CURSOR_MOVE, 0);
 }
@@ -119,7 +123,7 @@ static void xdg_toplevel_request_resize(
      * decorations. Note that a more sophisticated compositor should check the
      * provided serial against a list of button press serials sent to this
      * client, to prevent the client from requesting this whenever they want. */
-    wlr_log(WLR_INFO, "Request resize");
+
     struct wlr_xdg_toplevel_resize_event *event = data;
     struct diyac_view *toplevel = wl_container_of(listener, toplevel, request_resize);
     begin_interactive(toplevel, DIYAC_CURSOR_RESIZE, event->edges);
@@ -136,74 +140,31 @@ static void xdg_toplevel_request_maximize(
 
     struct diyac_view *toplevel =
         wl_container_of(listener, toplevel, request_maximize);
-    if (!toplevel->mapped)
+    toplevel->requested.maximized = toplevel->xdg_toplevel->requested.maximized;
-    {
-        wlr_xdg_toplevel_set_maximized(toplevel->xdg_toplevel, false);
-        // the view has not yet be mapped, don't maximize it
-        wlr_log(WLR_INFO, "The view has not yet be mapped, ignore maximize request");
-        return;
-    }
-    wlr_log(WLR_INFO, "Request maximize");
     diyac_reset_cursor_mode(toplevel->server);
-    if (toplevel->state == DIYAC_VIEW_MAXIMIZE)
-    {
-        toplevel->state = DIYAC_VIEW_NORMAL;
-        wlr_xdg_toplevel_set_maximized(toplevel->xdg_toplevel, false);
-        // restore its default geometry
-    }
-    else
-    {
-        wlr_xdg_toplevel_set_maximized(toplevel->xdg_toplevel, true);
-        toplevel->state = DIYAC_VIEW_MAXIMIZE;
-    }
     diyac_view_update_geometry(toplevel, false);
-    // wlr_xdg_surface_schedule_configure(toplevel->xdg_toplevel->base);
 }
 
 static void xdg_toplevel_request_fullscreen(struct wl_listener *listener, void *data)
 {
     struct diyac_view *toplevel =
         wl_container_of(listener, toplevel, request_fullscreen);
-    if (!toplevel->mapped)
+    toplevel->requested.fullscreen = toplevel->xdg_toplevel->requested.fullscreen;
-    {
+    /**
-        wlr_xdg_toplevel_set_fullscreen(toplevel->xdg_toplevel, false);
+     * TODO: use client specific output for fullscreen
-        // the view has not yet be mapped, don't maximize it
+     * toplevel->xdg_toplevel->requested.fullscreen_output
-        wlr_log(WLR_INFO, "The view has not yet be mapped, ignore fullscreen request");
-        return;
-    }
-    wlr_log(WLR_INFO, "Request fullscreen");
-    diyac_reset_cursor_mode(toplevel->server);
-    wlr_xdg_toplevel_set_fullscreen(toplevel->xdg_toplevel, false);
-    /*
-    if (toplevel->state == DIYAC_VIEW_FULL_SCREEN)
-    {
-        toplevel->state = DIYAC_VIEW_NORMAL;
-        wlr_xdg_toplevel_set_fullscreen(toplevel->xdg_toplevel, false);
-        // restore its default geometry
-    }
-    else
-    {
-        toplevel->state = DIYAC_VIEW_FULL_SCREEN;
-    }
-
     */
-    // diyac_view_update_geometry(toplevel, false);
+    diyac_reset_cursor_mode(toplevel->server);
+    diyac_view_update_geometry(toplevel, false);
 }
 
 static void xdg_toplevel_request_minimize(struct wl_listener *listener, void *data)
 {
     struct diyac_view *toplevel =
         wl_container_of(listener, toplevel, request_minimize);
-    if (toplevel->state == DIYAC_VIEW_MINIMIZE)
+        toplevel->requested.minimized = toplevel->xdg_toplevel->requested.minimized;
-    {
+        //TODO implement minimize
-        toplevel->state = DIYAC_VIEW_NORMAL;
+    wlr_xdg_surface_schedule_configure(toplevel->xdg_toplevel->base);
-        // restore its default geometry
-    }
-    else
-    {
-        toplevel->state = DIYAC_VIEW_MINIMIZE;
-    }
-    diyac_view_update_geometry(toplevel, false);
 }
 
 static void xdg_toplevel_destroy(struct wl_listener *listener, void *data)
@@ -251,13 +212,23 @@ static void popup_unconstrain(struct diyac_popup *popup)
     struct diyac_server *server = view->server;
     struct wlr_output_layout *output_layout = server->output_layout;
     struct wlr_output *wlr_output = view->output->wlr_output;
-
+    struct wlr_box usable = {
+            .x = 0,
+            .y = 0,
+            .width = view->output->wlr_output->width,
+            .height = view->output->wlr_output->height
+        };
+    struct diyac_view *root = diyac_get_root_view(view);
+    if(!root || ! root->state.fullscreen)
+    {
+        usable = view->output->usable_area;
+    }
     struct wlr_box geo_box = diyac_view_get_geometry(view);
     struct wlr_box output_toplevel_box = {
-        .x = view->output->usable_area.x - geo_box.x,
+        .x = usable.x - geo_box.x,
-        .y = view->output->usable_area.y - geo_box.y,
+        .y = usable.y - geo_box.y,
-        .width = view->output->usable_area.width,
+        .width = usable.width,
-        .height = view->output->usable_area.height,
+        .height = usable.height,
     };
     wlr_xdg_popup_unconstrain_from_box(popup->wlr_popup, &output_toplevel_box);
 }
@@ -386,7 +357,8 @@ void diyac_new_xdg_surface(struct wl_listener *listener, void *data)
     wlr_xdg_surface_ping(xdg_surface);
     /* Allocate a diyac_view for this surface */
      struct diyac_view *toplevel = calloc(1, sizeof(*toplevel));
-    toplevel->state = DIYAC_VIEW_NORMAL;
+    memset(&toplevel->state, 0, sizeof(toplevel->state));
+    memset(&toplevel->requested, 0, sizeof(toplevel->requested));
     toplevel->server = server;
     toplevel->xdg_toplevel = xdg_surface->toplevel;
     toplevel->xdg_surface = xdg_surface;