Finally, hints!

1 files changed, 62 insertions, 2 deletions

diff --git a/main.c b/main.c
index 2374d61..c59603a 100644
--- a/main.c
+++ b/main.c
@@ -27,9 +27,15 @@ typedef struct {
 
 #include "config.h"
 
-/* 0 = normal mode, 1 = insert, 2 = passthrough */
+/* 0 = normal mode, 1 = insert, 2 = passthrough, 3 = hint */
 static int mode = 0;
 bool cmdbar_focused = false;
+static char hint_buffer[16] = {0};
+static int hint_mode_active = 0;
+void (*hint_callback)(Cinnamon* cinnamon, char hint_buffer[16]);
+
+/* some forward declarations */
+void cancel_hint_mode(Cinnamon* cinnamon);
 
 static void parse_keybind(const char *key, guint *keyval, GdkModifierType *mods) {
 	char name[32];
@@ -93,7 +99,41 @@ static gboolean on_cmdbar_activate(GtkEntry *entry, gpointer data) {
 static gboolean on_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data) {
 	Cinnamon* cinnamon = (Cinnamon*)data;
 	GdkModifierType relevant = GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK;
-	if (mode == 1 || mode == 2) {
+	if (mode == 3) {
+		if (event->keyval >= GDK_KEY_0 && event->keyval <= GDK_KEY_9) {
+			char digit = '0' + (event->keyval - GDK_KEY_0);
+			int len = strlen(hint_buffer);
+			if (len < 15) {
+				hint_buffer[len] = digit;
+				hint_buffer[len+1] = '\0';
+
+				char buf[32];
+				snprintf(buf, sizeof(buf), "-- HINT MODE -- [%s]", hint_buffer);
+				gtk_label_set_text(GTK_LABEL(cinnamon->indicator), buf);
+			}
+			return TRUE;
+		}
+		else if (event->keyval == GDK_KEY_BackSpace) {
+			int len = strlen(hint_buffer);
+			if (len > 0) {
+				hint_buffer[len-1] = '\0';
+				char buf[32];
+				snprintf(buf, sizeof(buf), "-- HINT MODE -- [%s]", hint_buffer);
+				gtk_label_set_text(GTK_LABEL(cinnamon->indicator), buf);
+			}
+			return TRUE;
+		}
+		else if (event->keyval == GDK_KEY_Return || event->keyval == GDK_KEY_KP_Enter) {
+			hint_callback(cinnamon, hint_buffer);
+			cancel_hint_mode(cinnamon);
+			return TRUE;
+		}
+		else if (event->keyval == GDK_KEY_Escape) {
+			cancel_hint_mode(cinnamon);
+			return TRUE;
+		}
+	}
+	else if (mode == 1 || mode == 2) {
 		if (mode == 1 && event->keyval == GDK_KEY_Escape) {
 			set_mode(cinnamon, 0);
 			if (cmdbar_focused) {
@@ -140,6 +180,7 @@ void set_mode(Cinnamon* cinnamon, int new_mode) {
 		case 0: gtk_label_set_text(GTK_LABEL(cinnamon->indicator), "-- NORMAL --"); break;
 		case 1: gtk_label_set_text(GTK_LABEL(cinnamon->indicator), "-- INSERT --"); break;
 		case 2: gtk_label_set_text(GTK_LABEL(cinnamon->indicator), "-- PASSTHROUGH --"); break;
+		case 3: gtk_label_set_text(GTK_LABEL(cinnamon->indicator), "-- HINT MODE -- [start typing...]"); break;
 	}
 }
 
@@ -170,6 +211,25 @@ void tabclose(Cinnamon* cinnamon) {
 	} 
 }
 
+void inject_hint_mode(Cinnamon* cinnamon, void (*callback)(Cinnamon*, char hint_buffer[16])) {
+	if (mode == 3) return;
+	hint_callback = callback;
+	GtkWidget *webview = gtk_notebook_get_nth_page(GTK_NOTEBOOK(cinnamon->notebook), gtk_notebook_get_current_page(GTK_NOTEBOOK(cinnamon->notebook)));
+	memset(hint_buffer, 0, sizeof(hint_buffer));
+	set_mode(cinnamon, 3);
+	const char* js = "(function() { if (window.__cinnamon_hints) return; window.__cinnamon_hints = true; window.__cinnamon_link_map = {}; let links = Array.from(document.querySelectorAll('a, button, [role=button], input:not([type=\"hidden\"]), textarea, select, [contenteditable=\"true\"]')); links.forEach((el, idx) => { let num = (idx + 1).toString(); let rect = el.getBoundingClientRect(); let div = document.createElement('div'); div.textContent = num; div.className = '__cinnamon_hint'; div.style.position = 'fixed'; div.style.left = rect.left + 'px'; div.style.top = (rect.top - 20) + 'px'; div.style.backgroundColor = '#fcd24d'; div.style.border = '1px solid #1e1e2f'; div.style.padding = '2px 4px'; div.style.fontSize = '12px'; div.style.fontWeight = 'bold'; div.style.zIndex = '999999'; div.style.borderRadius = '3px'; div.style.color = '#1e1e2f'; document.body.appendChild(div); window.__cinnamon_link_map[num] = el; }); })();";
+	webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(webview), js, NULL, NULL, NULL);
+}
+
+void cancel_hint_mode(Cinnamon* cinnamon) {
+	GtkWidget *webview = gtk_notebook_get_nth_page(GTK_NOTEBOOK(cinnamon->notebook), gtk_notebook_get_current_page(GTK_NOTEBOOK(cinnamon->notebook)));
+	const char* js = "(function() { document.querySelectorAll('.__cinnamon_hint').forEach(el => el.remove()); delete window.__cinnamon_hints; delete window.__cinnamon_link_map; })();";
+	webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(webview), js, NULL, NULL, NULL);
+
+	set_mode(cinnamon, 0);
+	memset(hint_buffer, 0, sizeof(hint_buffer));
+}
+
 int main(int argc, char *argv[]) {
 #ifndef CINNAMON_ENABLED
 	return 1;