Merge remote-tracking branch 'origin/master' into hidpi

6 files changed, 201 insertions, 61 deletions

diff --git a/rootston/cursor.c b/rootston/cursor.c
index aa8e5122..3a6d087e 100644
--- a/rootston/cursor.c
+++ b/rootston/cursor.c
@@ -117,8 +117,8 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
 		if (input->active_view) {
 			double dx = input->cursor->x - input->offs_x;
 			double dy = input->cursor->y - input->offs_y;
-			view_set_position(input->active_view,
-				input->view_x + dx, input->view_y + dy);
+			view_move(input->active_view, input->view_x + dx,
+				input->view_y + dy);
 		}
 		break;
 	case ROOTS_CURSOR_RESIZE:
@@ -132,15 +132,19 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
 			if (input->resize_edges & ROOTS_CURSOR_RESIZE_EDGE_TOP) {
 				active_y = input->view_y + dy;
 				height -= dy;
-			}
-			if (input->resize_edges & ROOTS_CURSOR_RESIZE_EDGE_BOTTOM) {
+				if (height < 0) {
+					active_y += height;
+				}
+			} else if (input->resize_edges & ROOTS_CURSOR_RESIZE_EDGE_BOTTOM) {
 				height += dy;
 			}
 			if (input->resize_edges & ROOTS_CURSOR_RESIZE_EDGE_LEFT) {
 				active_x = input->view_x + dx;
 				width -= dx;
-			}
-			if (input->resize_edges & ROOTS_CURSOR_RESIZE_EDGE_RIGHT) {
+				if (width < 0) {
+					active_x += width;
+				}
+			} else if (input->resize_edges & ROOTS_CURSOR_RESIZE_EDGE_RIGHT) {
 				width += dx;
 			}
 
@@ -151,12 +155,13 @@ void cursor_update_position(struct roots_input *input, uint32_t time) {
 				height = 0;
 			}
 
-			// TODO we might need one configure event for this
 			if (active_x != input->active_view->x ||
 					active_y != input->active_view->y) {
-				view_set_position(input->active_view, active_x, active_y);
+				view_move_resize(input->active_view, active_x, active_y,
+					width, height);
+			} else {
+				view_resize(input->active_view, width, height);
 			}
-			view_resize(input->active_view, width, height);
 		}
 		break;
 	case ROOTS_CURSOR_ROTATE:
diff --git a/rootston/desktop.c b/rootston/desktop.c
index fe95426f..df8a79f2 100644
--- a/rootston/desktop.c
+++ b/rootston/desktop.c
@@ -69,16 +69,15 @@ static void view_update_output(const struct roots_view *view,
 	}
 }
 
-void view_set_position(struct roots_view *view, double x, double y) {
+void view_move(struct roots_view *view, double x, double y) {
 	struct wlr_box before;
 	view_get_size(view, &before);
-	if (view->set_position) {
-		view->set_position(view, x, y);
+	if (view->move) {
+		view->move(view, x, y);
 	} else {
 		view->x = x;
 		view->y = y;
 	}
-	view_update_output(view, &before);
 }
 
 void view_activate(struct roots_view *view, bool activate) {
@@ -96,6 +95,17 @@ void view_resize(struct roots_view *view, uint32_t width, uint32_t height) {
 	view_update_output(view, &before);
 }
 
+void view_move_resize(struct roots_view *view, double x, double y,
+		uint32_t width, uint32_t height) {
+	if (view->move_resize) {
+		view->move_resize(view, x, y, width, height);
+		return;
+	}
+
+	view_move(view, x, y);
+	view_resize(view, width, height);
+}
+
 void view_close(struct roots_view *view) {
 	if (view->close) {
 		view->close(view);
@@ -131,7 +141,7 @@ bool view_center(struct roots_view *view) {
 
 	double view_x = (double)(width - box.width) / 2 + l_output->x;
 	double view_y = (double)(height - box.height) / 2 + l_output->y;
-	view_set_position(view, view_x, view_y);
+	view_move(view, view_x, view_y);
 
 	return true;
 }
@@ -155,7 +165,6 @@ void view_teardown(struct roots_view *view) {
 	struct roots_view *prev_view = views->items[views->length-2];
 	struct roots_input *input = prev_view->desktop->server->input;
 	set_view_focus(input, prev_view->desktop, prev_view);
-	wlr_seat_keyboard_notify_enter(input->wl_seat, prev_view->wlr_surface);
 }
 
 struct roots_view *view_at(struct roots_desktop *desktop, double lx, double ly,
diff --git a/rootston/keyboard.c b/rootston/keyboard.c
index e174b731..bde912aa 100644
--- a/rootston/keyboard.c
+++ b/rootston/keyboard.c
@@ -60,7 +60,7 @@ static void keyboard_binding_execute(struct roots_keyboard *keyboard,
  * should be propagated to clients.
  */
 static bool keyboard_keysym_press(struct roots_keyboard *keyboard,
-		xkb_keysym_t keysym) {
+		xkb_keysym_t keysym, uint32_t modifiers) {
 	ssize_t i = keyboard_pressed_keysym_index(keyboard, keysym);
 	if (i < 0) {
 		i = keyboard_pressed_keysym_index(keyboard, XKB_KEY_NoSymbol);
@@ -88,7 +88,6 @@ static bool keyboard_keysym_press(struct roots_keyboard *keyboard,
 		wlr_seat_keyboard_end_grab(keyboard->input->wl_seat);
 	}
 
-	uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
 	struct wl_list *bindings = &keyboard->input->server->config->bindings;
 	struct binding_config *bc;
 	wl_list_for_each(bc, bindings, link) {
@@ -122,25 +121,85 @@ static void keyboard_keysym_release(struct roots_keyboard *keyboard,
 	}
 }
 
-static void keyboard_key_notify(struct wl_listener *listener, void *data) {
-	struct wlr_event_keyboard_key *event = data;
-	struct roots_keyboard *keyboard = wl_container_of(listener, keyboard, key);
+/*
+ * Process keypresses from the keyboard as if modifiers didn't change keysyms.
+ *
+ * This avoids the xkb keysym translation based on modifiers considered pressed
+ * in the state and uses the list of modifiers saved on the rootston side.
+ *
+ * This will trigger the keybind: [Alt]+[Shift]+2
+ */
+static bool keyboard_keysyms_simple(struct roots_keyboard *keyboard,
+		uint32_t keycode, enum wlr_key_state state) {
+	uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
+	const xkb_keysym_t *syms;
+	xkb_layout_index_t layout_index = xkb_state_key_get_layout(
+		keyboard->device->keyboard->xkb_state, keycode);
+	int syms_len = xkb_keymap_key_get_syms_by_level(
+		keyboard->device->keyboard->keymap, keycode, layout_index, 0, &syms);
 
-	uint32_t keycode = event->keycode + 8;
+	bool handled = false;
+	for (int i = 0; i < syms_len; i++) {
+		if (state) {
+			bool keysym_handled = keyboard_keysym_press(keyboard,
+				syms[i], modifiers);
+			handled = handled || keysym_handled;
+		} else { // WLR_KEY_RELEASED
+			keyboard_keysym_release(keyboard, syms[i]);
+		}
+	}
+
+	return handled;
+}
+
+/*
+ * Process keypresses from the keyboard as xkb sees them.
+ *
+ * This uses the xkb keysyms translation based on pressed modifiers and clears
+ * the consumed modifiers from the list of modifiers passed to keybind
+ * detection.
+ *
+ * (On US layout) this will trigger: [Alt]+[at]
+ */
+static bool keyboard_keysyms_xkb(struct roots_keyboard *keyboard,
+		uint32_t keycode, enum wlr_key_state state) {
+	uint32_t modifiers = wlr_keyboard_get_modifiers(keyboard->device->keyboard);
 	const xkb_keysym_t *syms;
 	int syms_len = xkb_state_key_get_syms(keyboard->device->keyboard->xkb_state,
 		keycode, &syms);
+	uint32_t consumed = xkb_state_key_get_consumed_mods2(
+		keyboard->device->keyboard->xkb_state, keycode, XKB_CONSUMED_MODE_XKB);
+
+	modifiers = modifiers & ~consumed;
 
 	bool handled = false;
 	for (int i = 0; i < syms_len; i++) {
-		if (event->state == WLR_KEY_PRESSED) {
-			bool keysym_handled = keyboard_keysym_press(keyboard, syms[i]);
+		if (state) {
+			bool keysym_handled = keyboard_keysym_press(keyboard,
+				syms[i], modifiers);
 			handled = handled || keysym_handled;
 		} else { // WLR_KEY_RELEASED
 			keyboard_keysym_release(keyboard, syms[i]);
 		}
 	}
 
+	return handled;
+}
+
+static void keyboard_key_notify(struct wl_listener *listener, void *data) {
+	struct wlr_event_keyboard_key *event = data;
+	struct roots_keyboard *keyboard = wl_container_of(listener, keyboard, key);
+
+	uint32_t keycode = event->keycode + 8;
+
+	bool handled = keyboard_keysyms_xkb(keyboard, keycode, event->state);
+
+	if (!handled) {
+		bool key_handled = keyboard_keysyms_simple(keyboard, keycode,
+			event->state);
+		handled = handled || key_handled;
+	}
+
 	if (!handled) {
 		wlr_seat_set_keyboard(keyboard->input->wl_seat, keyboard->device);
 		wlr_seat_keyboard_notify_key(keyboard->input->wl_seat, event->time_msec,
@@ -149,17 +208,11 @@ static void keyboard_key_notify(struct wl_listener *listener, void *data) {
 }
 
 static void keyboard_modifiers_notify(struct wl_listener *listener, void *data) {
-	struct roots_keyboard *r_keyboard =
-		wl_container_of(listener, r_keyboard, modifiers);
-	struct wlr_seat *seat = r_keyboard->input->wl_seat;
-	struct wlr_keyboard *keyboard = r_keyboard->device->keyboard;
-	wlr_seat_set_keyboard(seat, r_keyboard->device);
-	wlr_seat_keyboard_notify_modifiers(seat,
-		keyboard->modifiers.depressed,
-		keyboard->modifiers.latched,
-		keyboard->modifiers.locked,
-		keyboard->modifiers.group);
-
+	struct roots_keyboard *keyboard =
+		wl_container_of(listener, keyboard, modifiers);
+	struct wlr_seat *seat = keyboard->input->wl_seat;
+	wlr_seat_set_keyboard(seat, keyboard->device);
+	wlr_seat_keyboard_notify_modifiers(seat);
 }
 
 static void keyboard_config_merge(struct keyboard_config *config,
diff --git a/rootston/wl_shell.c b/rootston/wl_shell.c
index e5366672..e38eb697 100644
--- a/rootston/wl_shell.c
+++ b/rootston/wl_shell.c
@@ -120,7 +120,7 @@ void handle_wl_shell_surface(struct wl_listener *listener, void *data) {
 			surface->parent);
 		if (i != -1) {
 			struct roots_view *parent = desktop->views->items[i];
-			view_set_position(view,
+			view_move(view,
 				parent->x + surface->transient_state->x,
 				parent->y + surface->transient_state->y);
 		}
diff --git a/rootston/xdg_shell_v6.c b/rootston/xdg_shell_v6.c
index 2d83019f..ad0ee962 100644
--- a/rootston/xdg_shell_v6.c
+++ b/rootston/xdg_shell_v6.c
@@ -25,27 +25,63 @@ static void activate(struct roots_view *view, bool active) {
 	}
 }
 
+static void apply_size_constraints(struct wlr_xdg_surface_v6 *surf,
+		uint32_t width, uint32_t height, uint32_t *dest_width,
+		uint32_t *dest_height) {
+	*dest_width = width;
+	*dest_height = height;
+
+	struct wlr_xdg_toplevel_v6_state *state =
+		&surf->toplevel_state->current;
+	if (width < state->min_width) {
+		*dest_width = state->min_width;
+	} else if (state->max_width > 0 &&
+			width > state->max_width) {
+		*dest_width = state->max_width;
+	}
+	if (height < state->min_height) {
+		*dest_height = state->min_height;
+	} else if (state->max_height > 0 &&
+			height > state->max_height) {
+		*dest_height = state->max_height;
+	}
+}
+
 static void resize(struct roots_view *view, uint32_t width, uint32_t height) {
 	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
 	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
-	if (surf->role == WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
-		struct wlr_xdg_toplevel_v6_state *state =
-			&surf->toplevel_state->current;
-		if (width < state->min_width) {
-			width = state->min_width;
-		} else if (state->max_width > 0 &&
-				width > state->max_width) {
-			width = state->max_width;
-		}
-		if (height < state->min_height) {
-			height = state->min_height;
-		} else if (state->max_height > 0 &&
-				height > state->max_height) {
-			height = state->max_height;
-		}
-
-		wlr_xdg_toplevel_v6_set_size(surf, width, height);
+	if (surf->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
+		return;
+	}
+
+	uint32_t contrained_width, contrained_height;
+	apply_size_constraints(surf, width, height, &contrained_width,
+		&contrained_height);
+
+	wlr_xdg_toplevel_v6_set_size(surf, contrained_width, contrained_height);
+}
+
+static void move_resize(struct roots_view *view, double x, double y,
+		uint32_t width, uint32_t height) {
+	assert(view->type == ROOTS_XDG_SHELL_V6_VIEW);
+	struct wlr_xdg_surface_v6 *surf = view->xdg_surface_v6;
+	if (surf->role != WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) {
+		return;
 	}
+
+	uint32_t contrained_width, contrained_height;
+	apply_size_constraints(surf, width, height, &contrained_width,
+		&contrained_height);
+
+	x = x + width - contrained_width;
+	y = y + height - contrained_height;
+
+	// TODO: we should wait for an ack_configure event before updating the
+	// position
+	view->x = x;
+	view->y = y;
+
+	wlr_xdg_toplevel_v6_set_size(surf, contrained_width, contrained_height);
 }
 
 static void close(struct roots_view *view) {
@@ -130,6 +166,10 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 		&roots_surface->request_resize);
 
 	struct roots_view *view = calloc(1, sizeof(struct roots_view));
+	if (!view) {
+		free(roots_surface);
+		return;
+	}
 	view->type = ROOTS_XDG_SHELL_V6_VIEW;
 	view->xdg_surface_v6 = surface;
 	view->roots_xdg_surface_v6 = roots_surface;
@@ -137,6 +177,7 @@ void handle_xdg_shell_v6_surface(struct wl_listener *listener, void *data) {
 	view->get_size = get_size;
 	view->activate = activate;
 	view->resize = resize;
+	view->move_resize = move_resize;
 	view->close = close;
 	view->desktop = desktop;
 	roots_surface->view = view;
diff --git a/rootston/xwayland.c b/rootston/xwayland.c
index 2d7fe946..e3fc1c84 100644
--- a/rootston/xwayland.c
+++ b/rootston/xwayland.c
@@ -15,38 +15,69 @@ static void activate(struct roots_view *view, bool active) {
 	wlr_xwayland_surface_activate(xwayland, view->xwayland_surface, active);
 }
 
-static void resize(struct roots_view *view, uint32_t width, uint32_t height) {
+static void move(struct roots_view *view, double x, double y) {
 	assert(view->type == ROOTS_XWAYLAND_VIEW);
 	struct wlr_xwayland_surface *xwayland_surface = view->xwayland_surface;
+	view->x = x;
+	view->y = y;
+	wlr_xwayland_surface_configure(view->desktop->xwayland, xwayland_surface,
+		x, y, xwayland_surface->width, xwayland_surface->height);
+}
+
+static void apply_size_constraints(
+		struct wlr_xwayland_surface *xwayland_surface, uint32_t width,
+		uint32_t height, uint32_t *dest_width, uint32_t *dest_height) {
+	*dest_width = width;
+	*dest_height = height;
 
 	struct wlr_xwayland_surface_size_hints *size_hints =
 		xwayland_surface->size_hints;
 	if (size_hints != NULL) {
 		if (width < (uint32_t)size_hints->min_width) {
-			width = size_hints->min_width;
+			*dest_width = size_hints->min_width;
 		} else if (size_hints->max_width > 0 &&
 				width > (uint32_t)size_hints->max_width) {
-			width = size_hints->max_width;
+			*dest_width = size_hints->max_width;
 		}
 		if (height < (uint32_t)size_hints->min_height) {
-			height = size_hints->min_height;
+			*dest_height = size_hints->min_height;
 		} else if (size_hints->max_height > 0 &&
 				height > (uint32_t)size_hints->max_height) {
-			height = size_hints->max_height;
+			*dest_height = size_hints->max_height;
 		}
 	}
+}
+
+static void resize(struct roots_view *view, uint32_t width, uint32_t height) {
+	assert(view->type == ROOTS_XWAYLAND_VIEW);
+	struct wlr_xwayland_surface *xwayland_surface = view->xwayland_surface;
+
+	uint32_t contrained_width, contrained_height;
+	apply_size_constraints(xwayland_surface, width, height, &contrained_width,
+		&contrained_height);
 
 	wlr_xwayland_surface_configure(view->desktop->xwayland, xwayland_surface,
-		xwayland_surface->x, xwayland_surface->y, width, height);
+		xwayland_surface->x, xwayland_surface->y, contrained_width,
+		contrained_height);
 }
 
-static void set_position(struct roots_view *view, double x, double y) {
+static void move_resize(struct roots_view *view, double x, double y,
+		uint32_t width, uint32_t height) {
 	assert(view->type == ROOTS_XWAYLAND_VIEW);
 	struct wlr_xwayland_surface *xwayland_surface = view->xwayland_surface;
+
+	uint32_t contrained_width, contrained_height;
+	apply_size_constraints(xwayland_surface, width, height, &contrained_width,
+		&contrained_height);
+
+	x = x + width - contrained_width;
+	y = y + height - contrained_height;
+
 	view->x = x;
 	view->y = y;
+
 	wlr_xwayland_surface_configure(view->desktop->xwayland, xwayland_surface,
-		x, y, xwayland_surface->width, xwayland_surface->height);
+		x, y, contrained_width, contrained_height);
 }
 
 static void close(struct roots_view *view) {
@@ -204,7 +235,8 @@ void handle_xwayland_surface(struct wl_listener *listener, void *data) {
 	view->desktop = desktop;
 	view->activate = activate;
 	view->resize = resize;
-	view->set_position = set_position;
+	view->move = move;
+	view->move_resize = move_resize;
 	view->close = close;
 	roots_surface->view = view;
 	wlr_list_add(desktop->views, view);