Add logging and new windows into layout tree

sway/commands.c

@@ -5,11 +5,12 @@
 #include <string.h>
 #include <ctype.h>
 #include "stringop.h"
+#include "log.h"
 #include "commands.h"
 
 int cmd_set(struct sway_config *config, int argc, char **argv) {
 	if (argc != 2) {
-		fprintf(stderr, "Invalid set command (expected 2 arguments, got %d)\n", argc);
+		sway_log(L_ERROR, "Invalid set command (expected 2 arguments, got %d)", argc);
 		return 1;
 	}
 	struct sway_variable *var = malloc(sizeof(struct sway_variable));
@@ -23,7 +24,7 @@ int cmd_set(struct sway_config *config, int argc, char **argv) {
 
 int cmd_bindsym(struct sway_config *config, int argc, char **argv) {
 	if (argc < 2) {
-		fprintf(stderr, "Invalid bindsym command (expected 2 arguments, got %d)\n", argc);
+		sway_log(L_ERROR, "Invalid set command (expected 2 arguments, got %d)", argc);
 		return 1;
 	}
 	argv[0] = do_var_replacement(config, argv[0]);
@@ -39,7 +40,7 @@ int cmd_bindsym(struct sway_config *config, int argc, char **argv) {
 		// TODO: Parse modifier keys
 		xkb_keysym_t sym = xkb_keysym_from_name(split->items[i], XKB_KEYSYM_CASE_INSENSITIVE);
 		if (!sym) {
-			fprintf(stderr, "bindsym - unknown key '%s'\n", (char *)split->items[i]);
+			sway_log(L_ERROR, "bindsym - unknown key %s", (char *)split->items[i]);
 			// Ignore for now, we need to deal with modifier keys
 			// return 1;
 		}
@@ -52,7 +53,7 @@ int cmd_bindsym(struct sway_config *config, int argc, char **argv) {
 	// TODO: Check if there are other commands with this key binding
 	list_add(config->current_mode->bindings, binding);
 
-	fprintf(stderr, "bindsym - Bound %s to command %s\n", argv[0], binding->command);
+	sway_log(L_DEBUG, "bindsym - Bound %s to command %s", argv[0], binding->command);
 	return 0;
 }
 
@@ -139,7 +140,7 @@ int handle_command(struct sway_config *config, char *exec) {
 	}
 	struct cmd_handler *handler = find_handler(handlers, sizeof(handlers) / sizeof(struct cmd_handler), cmd);
 	if (handler == NULL) {
-		fprintf(stderr, "Unknown command '%s'\n", cmd);
+		sway_log(L_ERROR, "Unknown command '%s'", cmd);
 		return 0; // TODO: return error, probably
 	}
 	int argc;

sway/handlers.c

@@ -17,18 +17,17 @@ void handle_output_resolution_change(wlc_handle output, const struct wlc_size *f
 }
 
 bool handle_view_created(wlc_handle view) {
-	printf("View created, focusing");
-	wlc_view_focus(view);
-	wlc_view_bring_to_front(view);
+	add_view(view);
 	return true;
 }
 
 void handle_view_destroyed(wlc_handle view) {
-	printf("View destroyed");
-	wlc_view_focus(get_topmost(wlc_view_get_output(view), 0));
+	destroy_view(view);
 	return true;
 }
 
 void handle_view_focus(wlc_handle view, bool focus) {
+	printf("View focused\n");
 	wlc_view_set_state(view, WLC_BIT_ACTIVATED, focus);
+	focused_view = view;
 }

sway/layout.c

@@ -2,12 +2,18 @@
 #include <stdbool.h>
 #include <wlc/wlc.h>
 #include "list.h"
+#include "log.h"
 #include "layout.h"
 
 list_t *outputs;
+wlc_handle focused_view;
+
+void arrange_windows() {
+}
 
 void init_layout() {
 	outputs = create_list();
+	focused_view = -1;
 }
 
 struct sway_container *get_container(wlc_handle output, int *index) {
@@ -21,6 +27,74 @@ struct sway_container *get_container(wlc_handle output, int *index) {
 	return NULL;
 }
 
+struct sway_container *get_container_for_view_recurse(wlc_handle handle, int *index, struct sway_container *parent) {
+	int j;
+	for (j = 0; j < parent->children->length; ++j) {
+		struct sway_container *child = parent->children->items[j];
+		if (child->layout == LAYOUT_IS_VIEW) {
+			if (child->output == handle) {
+				*index = j;
+				return parent;
+			}
+		} else {
+			struct sway_container *res;
+			if ((res = get_container_for_view_recurse(handle, index, child))) {
+				return res;
+			}
+		}
+	}
+	return NULL;
+}
+
+struct sway_container *get_container_for_view(wlc_handle handle, int *index) {
+	int i;
+	for (i = 0; i < outputs->length; ++i) {
+		struct sway_container *c = outputs->items[i];
+		struct sway_container *res;
+		if ((res = get_container_for_view_recurse(handle, index, c))) {
+			return res;
+		}
+	}
+	return NULL;
+}
+
+void add_view(wlc_handle view_handle) {
+	struct sway_container *container;
+	int _;
+
+	if (focused_view == -1) { // Add it to the output container
+		sway_log(L_DEBUG, "Adding initial view for output", view_handle);
+		wlc_handle output = wlc_get_focused_output();
+		container = get_container(output, &_);
+	} else {
+		sway_log(L_DEBUG, "Adding view %d to output", view_handle);
+		// TODO
+	}
+
+	// Create "container" for this view
+	struct sway_container *view = malloc(sizeof(struct sway_container));
+	view->layout = LAYOUT_IS_VIEW;
+	view->children = NULL;
+	view->output = view_handle;
+	list_add(container->children, view);
+
+	wlc_view_focus(view_handle);
+
+	arrange_windows();
+}
+
+void destroy_view(wlc_handle view) {
+	sway_log(L_DEBUG, "Destroying view %d", view);
+
+	int index;
+	struct sway_container *container = get_container_for_view(view, &index);
+	list_del(container->children, index);
+
+	wlc_view_focus(get_topmost(wlc_view_get_output(view), 0));
+
+	arrange_windows();
+}
+
 void add_output(wlc_handle output) {
 	struct sway_container *container = malloc(sizeof(struct sway_container));
 	// TODO: Get default layout from config

sway/layout.h

@@ -5,6 +5,7 @@
 #include "list.h"
 
 typedef enum {
+    LAYOUT_IS_VIEW,
     LAYOUT_TILE_HORIZ,
     LAYOUT_TILE_VERT,
     LAYOUT_TABBED,
@@ -15,12 +16,17 @@ struct sway_container {
     wlc_handle output;
     list_t *children;
     container_layout_t layout;
+    struct sway_container *parent;
 };
 
 extern list_t *outputs;
+extern wlc_handle focused_view;
 
 void init_layout();
 void add_output(wlc_handle output);
+void destroy_output(wlc_handle output);
 wlc_handle get_topmost(wlc_handle output, size_t offset);
+void destroy_view(wlc_handle view);
+void add_view(wlc_handle view);
 
 #endif

sway/log.c

@@ -0,0 +1,43 @@
+#include "log.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int colored = 1;
+int v = 0;
+
+const char *verbosity_colors[] = {
+	"", // L_SILENT
+	"\x1B[1;31m", // L_ERROR
+	"\x1B[1;34m", // L_INFO
+	"\x1B[1;30m", // L_DEBUG
+};
+
+void init_log(int verbosity) {
+	v = verbosity;
+}
+
+void sway_abort(char *format, ...) {
+	fprintf(stderr, "ERROR: ");
+	va_list args;
+	va_start(args, format);
+	vfprintf(stderr, format, args);
+	va_end(args);
+	fprintf(stderr, "\n");
+	exit(1);
+}
+
+void sway_log(int verbosity, char* format, ...) {
+	if (verbosity <= v) {
+		int c = verbosity;
+		if (c > sizeof(verbosity_colors) / sizeof(char *)) {
+			c = sizeof(verbosity_colors) / sizeof(char *) - 1;
+		}
+		fprintf(stderr, verbosity_colors[c]);
+		va_list args;
+		va_start(args, format);
+		vfprintf(stderr, format, args);
+		va_end(args);
+		fprintf(stderr, "\x1B[0m\n");
+	}
+}

sway/log.h

@@ -0,0 +1,15 @@
+#ifndef _SWAY_LOG_H
+#define _SWAY_LOG_H
+
+typedef enum {
+    L_SILENT = 0,
+    L_ERROR = 1,
+    L_INFO = 2,
+    L_DEBUG = 3,
+} log_importance_t;
+
+void init_log(int verbosity);
+void sway_log(int verbosity, char* format, ...);
+void sway_abort(char* format, ...);
+
+#endif

sway/main.c

@@ -4,6 +4,7 @@
 #include <wlc/wlc.h>
 #include "layout.h"
 #include "config.h"
+#include "log.h"
 #include "handlers.h"
 
 struct sway_config *config;
@@ -27,6 +28,7 @@ void load_config() {
 }
 
 int main(int argc, char **argv) {
+	init_log(L_DEBUG); // TODO: Control this with command line arg
 	load_config();
 	init_layout();