Merge pull request #212 from sce/mouse_warping

Learn mouse_warping

include/commands.h

@@ -2,6 +2,7 @@
 #define _SWAY_COMMANDS_H
 #include <stdbool.h>
 #include <json-c/json.h>
+#include <wlc/wlc.h>
 #include "config.h"
 
 

include/container.h

@@ -98,6 +98,8 @@ swayc_t *swayc_by_name(const char *name);
 swayc_t *swayc_active_output(void);
 swayc_t *swayc_active_workspace(void);
 swayc_t *swayc_active_workspace_for(swayc_t *view);
+// set focus to current pointer location and return focused container
+swayc_t *container_under_pointer(void);
 
 // Container information
 

include/handlers.h

@@ -5,10 +5,6 @@
 #include <wlc/wlc.h>
 
 extern struct wlc_interface interface;
-extern struct wlc_origin mouse_origin;
 extern uint32_t keys_pressed[32];
 
-// set focus to current pointer location and return focused container
-swayc_t *container_under_pointer(void);
-
 #endif

include/input_state.h

@@ -48,11 +48,6 @@ extern struct pointer_state {
 	struct pointer_button_state right;
 	struct pointer_button_state scroll;
 
-	// pointer position
-	struct mouse_origin{
-		int x, y;
-	} origin;
-
 	// change in pointer position
 	struct {
 		int x, y;
@@ -65,6 +60,9 @@ extern struct pointer_state {
 	int mode;
 } pointer_state;
 
+void pointer_position_set(struct wlc_origin *new_origin, bool force_focus);
+void center_pointer_on(swayc_t *view);
+
 // on button release unset mode depending on the button.
 // on button press set mode conditionally depending on the button
 void pointer_mode_set(uint32_t button, bool condition);

sway.5.txt

@@ -102,6 +102,10 @@ Commands
 	Moves the focused container to the workspace identified by _name_.
 	_name_ may be a special workspace name. See **workspace**.
 
+**mouse_warping** <output|none>::
+	When _output_: place mouse at center of newly focused window when changing
+	output. When _none_: don't move mouse.
+
 **output** <name> <resolution|res WIDTHxHEIGHT> <position|pos X,Y>::
 	Configures the specified output. It will use the given resolution and be
 	arranged at the given position in the layout tree. You may omit either of

sway/commands.c

@@ -21,6 +21,7 @@
 #include "handlers.h"
 #include "sway.h"
 #include "resize.h"
+#include "input_state.h"
 
 typedef struct cmd_results *sway_cmd(int argc, char **argv);
 
@@ -45,6 +46,7 @@ static sway_cmd cmd_kill;
 static sway_cmd cmd_layout;
 static sway_cmd cmd_log_colors;
 static sway_cmd cmd_mode;
+static sway_cmd cmd_mouse_warping;
 static sway_cmd cmd_move;
 static sway_cmd cmd_output;
 static sway_cmd cmd_reload;
@@ -383,9 +385,13 @@ static struct cmd_results *cmd_focus(int argc, char **argv) {
 		} else if (!workspace_switch(swayc_active_workspace_for(output))) {
 			return cmd_results_new(CMD_FAILURE, "focus output",
 				"Switching to workspace on output '%s' was blocked", argv[1]);
-		} else {
-			return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+		} else if (config->mouse_warping) {
+			swayc_t *focused = get_focused_view(output);
+			if (focused && focused->type == C_VIEW) {
+				center_pointer_on(focused);
 			}
+		}
+		return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 	} else if ((error = checkarg(argc, "focus", EXPECTED_EQUAL_TO, 1))) {
 		return error;
 	}
@@ -528,6 +534,20 @@ static struct cmd_results *cmd_mode(int argc, char **argv) {
 	return cmd_results_new(mode_make ? CMD_BLOCK_MODE : CMD_SUCCESS, NULL, NULL);
 }
 
+static struct cmd_results *cmd_mouse_warping(int argc, char **argv) {
+	struct cmd_results *error = NULL;
+	if ((error = checkarg(argc, "mouse_warping", EXPECTED_EQUAL_TO, 1))) {
+		return error;
+	} else if (strcasecmp(argv[0], "output") == 0) {
+		config->mouse_warping = true;
+	} else if (strcasecmp(argv[0], "none") == 0) {
+		config->mouse_warping = false;
+	} else {
+		return cmd_results_new(CMD_FAILURE, "mouse_warping", "Expected 'mouse_warping output|none'");
+	}
+	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
+}
+
 static struct cmd_results *cmd_move(int argc, char **argv) {
 	struct cmd_results *error = NULL;
 	if (config->reading) return cmd_results_new(CMD_FAILURE, "move", "Can't be used in config file.");
@@ -1165,7 +1185,16 @@ static struct cmd_results *cmd_workspace(int argc, char **argv) {
 				ws = workspace_create(argv[0]);
 			}
 		}
+		swayc_t *old_output = swayc_active_output();
 		workspace_switch(ws);
+		swayc_t *new_output = swayc_active_output();
+
+		if (config->mouse_warping && old_output != new_output) {
+			swayc_t *focused = get_focused_view(ws);
+			if (focused && focused->type == C_VIEW) {
+				center_pointer_on(focused);
+			}
+		}
 	} else {
 		if (strcasecmp(argv[1], "output") == 0) {
 			if ((error = checkarg(argc, "workspace", EXPECTED_EQUAL_TO, 3))) {
@@ -1217,6 +1246,7 @@ static struct cmd_handler handlers[] = {
 	{ "layout", cmd_layout },
 	{ "log_colors", cmd_log_colors },
 	{ "mode", cmd_mode },
+	{ "mouse_warping", cmd_mouse_warping },
 	{ "move", cmd_move },
 	{ "output", cmd_output },
 	{ "reload", cmd_reload },

sway/container.c

@@ -8,6 +8,7 @@
 #include "workspace.h"
 #include "focus.h"
 #include "layout.h"
+#include "input_state.h"
 #include "log.h"
 
 #define ASSERT_NONNULL(PTR) \
@@ -508,6 +509,70 @@ swayc_t *swayc_active_workspace_for(swayc_t *cont) {
 	}
 }
 
+static bool pointer_test(swayc_t *view, void *_origin) {
+	const struct wlc_origin *origin = _origin;
+	// Determine the output that the view is under
+	swayc_t *parent = swayc_parent_by_type(view, C_OUTPUT);
+	if (origin->x >= view->x && origin->y >= view->y
+		&& origin->x < view->x + view->width && origin->y < view->y + view->height
+		&& view->visible && parent == root_container.focused) {
+		return true;
+	}
+	return false;
+}
+
+swayc_t *container_under_pointer(void) {
+	// root.output->workspace
+	if (!root_container.focused || !root_container.focused->focused) {
+		return NULL;
+	}
+	swayc_t *lookup = root_container.focused->focused;
+	// Case of empty workspace
+	if (lookup->children == 0) {
+		return NULL;
+	}
+	struct wlc_origin origin;
+	wlc_pointer_get_origin(&origin);
+	while (lookup->type != C_VIEW) {
+		int i;
+		int len;
+		// if tabbed/stacked go directly to focused container, otherwise search
+		// children
+		if (lookup->layout == L_TABBED || lookup->layout == L_STACKED) {
+			lookup = lookup->focused;
+			continue;
+		}
+		// if workspace, search floating
+		if (lookup->type == C_WORKSPACE) {
+			i = len = lookup->floating->length;
+			bool got_floating = false;
+			while (--i > -1) {
+				if (pointer_test(lookup->floating->items[i], &origin)) {
+					lookup = lookup->floating->items[i];
+					got_floating = true;
+					break;
+				}
+			}
+			if (got_floating) {
+				continue;
+			}
+		}
+		// search children
+		len = lookup->children->length;
+		for (i = 0; i < len; ++i) {
+			if (pointer_test(lookup->children->items[i], &origin)) {
+				lookup = lookup->children->items[i];
+				break;
+			}
+		}
+		// when border and titles are done, this could happen
+		if (i == len) {
+			break;
+		}
+	}
+	return lookup;
+}
+
 // Container information
 
 bool swayc_is_fullscreen(swayc_t *view) {

sway/focus.c

@@ -4,6 +4,8 @@
 #include "log.h"
 #include "workspace.h"
 #include "layout.h"
+#include "config.h"
+#include "input_state.h"
 
 bool locked_container_focus = false;
 bool locked_view_focus = false;
@@ -49,14 +51,24 @@ static void update_focus(swayc_t *c) {
 }
 
 bool move_focus(enum movement_direction direction) {
-	swayc_t *view = get_focused_container(&root_container);
-	view = get_swayc_in_direction(view, direction);
-	if (view) {
-		if (direction == MOVE_PARENT) {
-			return set_focused_container(view);
-		} else {
-			return set_focused_container(get_focused_view(view));
+	swayc_t *old_view = get_focused_container(&root_container);
+	swayc_t *new_view = get_swayc_in_direction(old_view, direction);
+	if (!new_view) {
+		return false;
+	} else if (direction == MOVE_PARENT) {
+		return set_focused_container(new_view);
+	} else if (config->mouse_warping) {
+		swayc_t *old_op = old_view->type == C_OUTPUT ?
+			old_view : swayc_parent_by_type(old_view, C_OUTPUT);
+		swayc_t *focused = get_focused_view(new_view);
+		if (set_focused_container(focused)) {
+			if (old_op != swayc_active_output() && focused && focused->type == C_VIEW) {
+				center_pointer_on(focused);
 			}
+			return true;
+		}
+	} else {
+		return set_focused_container(get_focused_view(new_view));
 	}
 	return false;
 }

sway/handlers.c

@@ -24,68 +24,6 @@
 // Event handled by sway and should not be sent to client
 #define EVENT_HANDLED true
 
-static bool pointer_test(swayc_t *view, void *_origin) {
-	const struct mouse_origin *origin = _origin;
-	// Determine the output that the view is under
-	swayc_t *parent = swayc_parent_by_type(view, C_OUTPUT);
-	if (origin->x >= view->x && origin->y >= view->y
-		&& origin->x < view->x + view->width && origin->y < view->y + view->height
-		&& view->visible && parent == root_container.focused) {
-		return true;
-	}
-	return false;
-}
-
-swayc_t *container_under_pointer(void) {
-	// root.output->workspace
-	if (!root_container.focused || !root_container.focused->focused) {
-		return NULL;
-	}
-	swayc_t *lookup = root_container.focused->focused;
-	// Case of empty workspace
-	if (lookup->children == 0) {
-		return NULL;
-	}
-	while (lookup->type != C_VIEW) {
-		int i;
-		int len;
-		// if tabbed/stacked go directly to focused container, otherwise search
-		// children
-		if (lookup->layout == L_TABBED || lookup->layout == L_STACKED) {
-			lookup = lookup->focused;
-			continue;
-		}
-		// if workspace, search floating
-		if (lookup->type == C_WORKSPACE) {
-			i = len = lookup->floating->length;
-			bool got_floating = false;
-			while (--i > -1) {
-				if (pointer_test(lookup->floating->items[i], &pointer_state.origin)) {
-					lookup = lookup->floating->items[i];
-					got_floating = true;
-					break;
-				}
-			}
-			if (got_floating) {
-				continue;
-			}
-		}
-		// search children
-		len = lookup->children->length;
-		for (i = 0; i < len; ++i) {
-			if (pointer_test(lookup->children->items[i], &pointer_state.origin)) {
-				lookup = lookup->children->items[i];
-				break;
-			}
-		}
-		// when border and titles are done, this could happen
-		if (i == len) {
-			break;
-		}
-	}
-	return lookup;
-}
-
 /* Handles */
 
 static bool handle_output_created(wlc_handle output) {
@@ -394,27 +332,7 @@ static bool handle_pointer_motion(wlc_handle handle, uint32_t time, const struct
 		}
 	}
 
-	// Update pointer origin
-	pointer_state.delta.x = origin->x - pointer_state.origin.x;
-	pointer_state.delta.y = origin->y - pointer_state.origin.y;
-	pointer_state.origin.x = origin->x;
-	pointer_state.origin.y = origin->y;
-
-	// Update view under pointer
-	swayc_t *prev_view = pointer_state.view;
-	pointer_state.view = container_under_pointer();
-
-	// If pointer is in a mode, update it
-	if (pointer_state.mode) {
-		pointer_mode_update();
-	}
-	// Otherwise change focus if config is set an
-	else if (prev_view != pointer_state.view && config->focus_follows_mouse) {
-		if (pointer_state.view && pointer_state.view->type == C_VIEW) {
-			set_focused_container(pointer_state.view);
-		}
-	}
-	wlc_pointer_set_origin(&new_origin);
+	pointer_position_set(&new_origin, false);
 	return EVENT_PASSTHROUGH;
 }
 
@@ -425,10 +343,6 @@ static bool handle_pointer_button(wlc_handle view, uint32_t time, const struct w
 	// Update view pointer is on
 	pointer_state.view = container_under_pointer();
 
-	// Update pointer origin
-	pointer_state.origin.x = origin->x;
-	pointer_state.origin.y = origin->y;
-
 	// Update pointer_state
 	switch (button) {
 	case M_LEFT_CLICK:

sway/input_state.c

@@ -2,6 +2,7 @@
 #include <stdbool.h>
 #include <ctype.h>
 #include "log.h"
+#include "config.h"
 
 #include "input_state.h"
 
@@ -161,6 +162,36 @@ static void reset_initial_sibling(void) {
 	pointer_state.mode = 0;
 }
 
+void pointer_position_set(struct wlc_origin *new_origin, bool force_focus) {
+	struct wlc_origin origin;
+	wlc_pointer_get_origin(&origin);
+	pointer_state.delta.x = new_origin->x - origin.x;
+	pointer_state.delta.y = new_origin->y - origin.y;
+
+	// Update view under pointer
+	swayc_t *prev_view = pointer_state.view;
+	pointer_state.view = container_under_pointer();
+
+	// If pointer is in a mode, update it
+	if (pointer_state.mode) {
+		pointer_mode_update();
+	// Otherwise change focus if config is set
+	} else if (force_focus || (prev_view != pointer_state.view && config->focus_follows_mouse)) {
+		if (pointer_state.view && pointer_state.view->type == C_VIEW) {
+			set_focused_container(pointer_state.view);
+		}
+	}
+
+	wlc_pointer_set_origin(new_origin);
+}
+
+void center_pointer_on(swayc_t *view) {
+	struct wlc_origin new_origin;
+	new_origin.x = view->x + view->width/2;
+	new_origin.y = view->y + view->height/2;
+	pointer_position_set(&new_origin, true);
+}
+
 // Mode set left/right click
 
 static void pointer_mode_set_left(void) {
@@ -183,8 +214,10 @@ static void pointer_mode_set_right(void) {
 	int midway_x = initial.ptr->x + initial.ptr->width/2;
 	int midway_y = initial.ptr->y + initial.ptr->height/2;
 
-	lock.left = pointer_state.origin.x > midway_x;
-	lock.top = pointer_state.origin.y > midway_y;
+	struct wlc_origin origin;
+	wlc_pointer_get_origin(&origin);
+	lock.left = origin.x > midway_x;
+	lock.top = origin.y > midway_y;
 
 	if (initial.ptr->is_floating) {
 		pointer_state.mode = M_RESIZING | M_FLOATING;
@@ -246,8 +279,10 @@ void pointer_mode_update(void) {
 		pointer_state.mode = 0;
 		return;
 	}
-	int dx = pointer_state.origin.x;
-	int dy = pointer_state.origin.y;
+	struct wlc_origin origin;
+	wlc_pointer_get_origin(&origin);
+	int dx = origin.x;
+	int dy = origin.y;
 
 	switch (pointer_state.mode) {
 	case M_FLOATING | M_DRAGGING: