1 files changed, 110 insertions, 0 deletions
diff --git a/src/engine.c b/src/engine.c
new file mode 100644
index 0000000..bf6ed35
--- /dev/null
+++ b/src/engine.c
@@ -0,0 +1,110 @@
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "engine.h"
+#include "quark.h"
+
+static quark_tab_t tabs[MAX_TABS];
+static int tab_count = 0;
+static int current_tab = -1;
+
+/* TODO: actually implement webkit */
+
+int engine_get_current_index(void)
+{
+	/* fetch private */
+	return current_tab;
+}
+
+int engine_get_tab_count(void)
+{
+	/* fetch private */
+	return tab_count;
+}
+
+bool engine_init(void)
+{
+	LOG_PASS("engine: init");
+	return true;
+}
+
+void engine_load_url(int id, const char* url)
+{
+	if (id < 0 || id >= tab_count)
+		return;
+
+	free(tabs[id].url);
+	tabs[id].url = SDL_strdup(url);
+	tabs[id].loading = true;
+
+	LOG_INFO("engine: url=%s loaded to tab=%d", url, id);
+}
+
+void engine_shutdown(void)
+{
+	LOG_INFO("engine: shutting down");
+	for (int i = 0; i < tab_count; i++) {
+		free(tabs[i].url);
+		free(tabs[i].title);
+	}
+}
+
+void engine_tab_close(int id)
+{
+	if (id < 0 || id >= tab_count)
+		return;
+
+	LOG_INFO("engine: closed tab %d", id);
+
+	free(tabs[id].url);
+	free(tabs[id].title);
+
+	/* collapse */
+	for (int i = id; i < tab_count-1; i++)
+		tabs[i] = tabs[i+1];
+
+	tab_count--;
+	if (current_tab >= tab_count)
+		current_tab = tab_count - 1;
+}
+
+quark_tab_t* engine_tab_current(void)
+{
+	for (int i = 0; i < tab_count; i++)
+		if (i == current_tab)
+			return &tabs[i];
+
+	return NULL;
+}
+
+int engine_tab_new(const char* url)
+{
+	if (tab_count >= MAX_TABS) {
+		LOG_WARN("engine: maximum number of tabs reached");
+		return -1;
+	}
+
+	quark_tab_t* t = &tabs[tab_count];
+	t->url = SDL_strdup(url ? url : "about_blank");
+	t->title = SDL_strdup("new tab"); /* TODO: customise */
+	t->loading = true;
+
+	current_tab = tab_count;
+	tab_count++;
+
+	LOG_INFO("engine: created new tab: id=%d url=%s", current_tab, url);
+	return current_tab;
+}
+
+void engine_tab_switch(int id)
+{
+	if (id < 0 || id >= tab_count)
+		return;
+	current_tab = id;
+	LOG_INFO("engine: switched to tab %d", id);
+}
+
+void engine_update(void)
+{
+	/* nothing here */
+}