Merge pull request #2823 from tarmack/fix_edge_gaps

Fix edge gaps

include/sway/config.h

@@ -389,7 +389,6 @@ struct sway_config {
 	bool show_marks;
 	bool tiling_drag;
 
-	bool edge_gaps;
 	bool smart_gaps;
 	int gaps_inner;
 	int gaps_outer;

sway/commands/gaps.c

@@ -20,31 +20,6 @@ struct gaps_data {
 	int amount;
 };
 
-// gaps edge_gaps on|off|toggle
-static struct cmd_results *gaps_edge_gaps(int argc, char **argv) {
-	struct cmd_results *error;
-	if ((error = checkarg(argc, "gaps", EXPECTED_AT_LEAST, 2))) {
-		return error;
-	}
-
-	if (strcmp(argv[1], "on") == 0) {
-		config->edge_gaps = true;
-	} else if (strcmp(argv[1], "off") == 0) {
-		config->edge_gaps = false;
-	} else if (strcmp(argv[1], "toggle") == 0) {
-		if (!config->active) {
-			return cmd_results_new(CMD_INVALID, "gaps",
-					"Cannot toggle gaps while not running.");
-		}
-		config->edge_gaps = !config->edge_gaps;
-	} else {
-		return cmd_results_new(CMD_INVALID, "gaps",
-				"gaps edge_gaps on|off|toggle");
-	}
-	arrange_root();
-	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
-}
-
 // gaps inner|outer <px>
 static struct cmd_results *gaps_set_defaults(int argc, char **argv) {
 	struct cmd_results *error = checkarg(argc, "gaps", EXPECTED_EQUAL_TO, 2);
@@ -68,15 +43,17 @@ static struct cmd_results *gaps_set_defaults(int argc, char **argv) {
 		return cmd_results_new(CMD_INVALID, "gaps",
 				"Expected 'gaps inner|outer <px>'");
 	}
-	if (amount < 0) {
-		amount = 0;
-	}
-
 	if (inner) {
-		config->gaps_inner = amount;
+		config->gaps_inner = (amount >= 0) ? amount : 0;
 	} else {
 		config->gaps_outer = amount;
 	}
+
+	// Prevent negative outer gaps from moving windows out of the workspace.
+	if (config->gaps_outer < -config->gaps_inner) {
+		config->gaps_outer = -config->gaps_inner;
+	}
+
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
 
@@ -95,8 +72,12 @@ static void configure_gaps(struct sway_workspace *ws, void *_data) {
 		*prop -= data->amount;
 		break;
 	}
-	if (*prop < 0) {
-		*prop = 0;
+	// Prevent invalid gaps configurations.
+	if (ws->gaps_inner < 0) {
+		ws->gaps_inner = 0;
+	}
+	if (ws->gaps_outer < -ws->gaps_inner) {
+		ws->gaps_outer = -ws->gaps_inner;
 	}
 	arrange_workspace(ws);
 }
@@ -156,7 +137,6 @@ static struct cmd_results *gaps_set_runtime(int argc, char **argv) {
 	return cmd_results_new(CMD_SUCCESS, NULL, NULL);
 }
 
-// gaps edge_gaps on|off|toggle
 // gaps inner|outer <px> - sets defaults for workspaces
 // gaps inner|outer current|all set|plus|minus <px> - runtime only
 struct cmd_results *cmd_gaps(int argc, char **argv) {
@@ -165,10 +145,6 @@ struct cmd_results *cmd_gaps(int argc, char **argv) {
 		return error;
 	}
 
-	if (strcmp(argv[0], "edge_gaps") == 0) {
-		return gaps_edge_gaps(argc, argv);
-	}
-
 	if (argc == 2) {
 		return gaps_set_defaults(argc, argv);
 	}

sway/commands/workspace.c

@@ -1,5 +1,6 @@
 #define _XOPEN_SOURCE 500
 #include <ctype.h>
+#include <limits.h>
 #include <string.h>
 #include <strings.h>
 #include "sway/commands.h"
@@ -20,8 +21,8 @@ static struct workspace_config *workspace_config_find_or_create(char *ws_name) {
 		return NULL;
 	}
 	wsc->workspace = strdup(ws_name);
-	wsc->gaps_inner = -1;
-	wsc->gaps_outer = -1;
+	wsc->gaps_inner = INT_MIN;
+	wsc->gaps_outer = INT_MIN;
 	list_add(config->workspace_configs, wsc);
 	return wsc;
 }
@@ -94,7 +95,16 @@ struct cmd_results *cmd_workspace(int argc, char **argv) {
 			return cmd_results_new(CMD_FAILURE, "workspace gaps",
 					"Expected 'workspace <ws> gaps inner|outer <px>'");
 		}
-		*prop = val >= 0 ? val : 0;
+		*prop = val;
+
+		// Prevent invalid gaps configurations.
+		if (wsc->gaps_inner < 0) {
+			wsc->gaps_inner = 0;
+		}
+		if (wsc->gaps_outer < -wsc->gaps_inner) {
+			wsc->gaps_outer = -wsc->gaps_inner;
+		}
+
 	} else {
 		if (config->reading || !config->active) {
 			return cmd_results_new(CMD_DEFER, "workspace", NULL);

sway/config.c

@@ -234,7 +234,6 @@ static void config_defaults(struct sway_config *config) {
 	config->show_marks = true;
 	config->tiling_drag = true;
 
-	config->edge_gaps = true;
 	config->smart_gaps = false;
 	config->gaps_inner = 0;
 	config->gaps_outer = 0;

sway/sway.5.scd

@@ -420,15 +420,11 @@ The default colors are:
 	_focus\_wrapping force_. This is only available for convenience. Please
 	use _focus\_wrapping_ instead when possible.
 
-*gaps* edge\_gaps on|off|toggle
-	When _on_, gaps will be added between windows and workspace edges if the
-	inner gap is nonzero. When _off_, gaps will only be added between views.
-	_toggle_ cannot be used in the configuration file.
-
 *gaps* inner|outer <amount>
 	Sets default _amount_ pixels of _inner_ or _outer_ gap, where the inner
 	affects spacing around each view and outer affects the spacing around each
-	workspace. Outer gaps are in addition to inner gaps.
+	workspace. Outer gaps are in addition to inner gaps. To reduce or remove
+	outer gaps, outer gaps can be set to a negative value.
 
 	This affects new workspaces only, and is used when the workspace doesn't
 	have its own gaps settings (see: workspace <ws> gaps inner|outer <amount>).

sway/tree/workspace.c

@@ -73,10 +73,10 @@ struct sway_workspace *workspace_create(struct sway_output *output,
 	if (name) {
 		struct workspace_config *wsc = workspace_find_config(name);
 		if (wsc) {
-			if (wsc->gaps_outer != -1) {
+			if (wsc->gaps_outer != INT_MIN) {
 				ws->gaps_outer = wsc->gaps_outer;
 			}
-			if (wsc->gaps_inner != -1) {
+			if (wsc->gaps_inner != INT_MIN) {
 				ws->gaps_inner = wsc->gaps_inner;
 			}
 		}
@@ -618,9 +618,6 @@ void workspace_add_gaps(struct sway_workspace *ws) {
 	if (ws->current_gaps > 0) {
 		return;
 	}
-	if (!config->edge_gaps) {
-		return;
-	}
 	if (config->smart_gaps) {
 		struct sway_seat *seat = input_manager_get_default_seat(input_manager);
 		struct sway_container *focus =