From a102ff09f97135e911809eb7d4ef97870b287f5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Fri, 5 Jul 2019 10:44:57 +0200
Subject: [PATCH] input: mouse events

---
 input.c    | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 input.h    |  1 +
 main.c     | 23 ++++++++++++----
 terminal.h |  5 ++++
 4 files changed, 103 insertions(+), 6 deletions(-)

diff --git a/input.c b/input.c
index 319de914..ee06f3e7 100644
--- a/input.c
+++ b/input.c
@@ -13,6 +13,7 @@
 #define LOG_ENABLE_DBG 0
 #include "log.h"
 #include "terminal.h"
+#include "render.h"
 
 static void
 keyboard_keymap(void *data, struct wl_keyboard *wl_keyboard,
@@ -287,3 +288,82 @@ input_repeat(struct terminal *term, uint32_t key)
 {
     keyboard_key(term, NULL, 0, 0, key, XKB_KEY_DOWN);
 }
+
+static void
+wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
+                 uint32_t serial, struct wl_surface *surface,
+                 wl_fixed_t surface_x, wl_fixed_t surface_y)
+{
+    struct terminal *term = data;
+    term->mouse.x = wl_fixed_to_int(surface_x);
+    term->mouse.y = wl_fixed_to_int(surface_y);
+
+    render_update_cursor_surface(term);
+}
+
+static void
+wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
+                 uint32_t serial, struct wl_surface *surface)
+{
+}
+
+static void
+wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
+                  uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y)
+{
+    struct terminal *term = data;
+    term->mouse.x = wl_fixed_to_int(surface_x) * 1;//backend->monitor->scale;
+    term->mouse.y = wl_fixed_to_int(surface_y) * 1;//backend->monitor->scale;
+}
+
+static void
+wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
+                  uint32_t serial, uint32_t time, uint32_t button, uint32_t state)
+{
+    if (state != WL_POINTER_BUTTON_STATE_PRESSED)
+        return;
+
+    //struct terminal *term = data;
+}
+
+static void
+wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
+                uint32_t time, uint32_t axis, wl_fixed_t value)
+{
+}
+
+static void
+wl_pointer_frame(void *data, struct wl_pointer *wl_pointer)
+{
+}
+
+static void
+wl_pointer_axis_source(void *data, struct wl_pointer *wl_pointer,
+                       uint32_t axis_source)
+{
+}
+
+static void
+wl_pointer_axis_stop(void *data, struct wl_pointer *wl_pointer,
+                     uint32_t time, uint32_t axis)
+{
+}
+
+static void
+wl_pointer_axis_discrete(void *data, struct wl_pointer *wl_pointer,
+                         uint32_t axis, int32_t discrete)
+{
+}
+
+const struct wl_pointer_listener pointer_listener = {
+    .enter = wl_pointer_enter,
+    .leave = wl_pointer_leave,
+    .motion = wl_pointer_motion,
+    .button = wl_pointer_button,
+    .axis = wl_pointer_axis,
+    .frame = wl_pointer_frame,
+    .axis_source = wl_pointer_axis_source,
+    .axis_stop = wl_pointer_axis_stop,
+    .axis_discrete = wl_pointer_axis_discrete,
+};
+
diff --git a/input.h b/input.h
index a191ae36..8ffa1c15 100644
--- a/input.h
+++ b/input.h
@@ -5,5 +5,6 @@
 #include "terminal.h"
 
 extern const struct wl_keyboard_listener keyboard_listener;
+extern const struct wl_pointer_listener pointer_listener;
 
 void input_repeat(struct terminal *term, uint32_t key);
diff --git a/main.c b/main.c
index 934461e5..98fd5045 100644
--- a/main.c
+++ b/main.c
@@ -61,14 +61,25 @@ seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
 {
     struct terminal *term = data;
 
-    if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD))
-        return;
-
-    if (term->wl.keyboard != NULL)
+    if (term->wl.keyboard != NULL) {
         wl_keyboard_release(term->wl.keyboard);
+        term->wl.keyboard = NULL;
+    }
 
-    term->wl.keyboard = wl_seat_get_keyboard(wl_seat);
-    wl_keyboard_add_listener(term->wl.keyboard, &keyboard_listener, term);
+    if (term->wl.pointer.pointer != NULL) {
+        wl_pointer_release(term->wl.pointer.pointer);
+        term->wl.pointer.pointer = NULL;
+    }
+
+    if (caps & WL_SEAT_CAPABILITY_KEYBOARD) {
+        term->wl.keyboard = wl_seat_get_keyboard(wl_seat);
+        wl_keyboard_add_listener(term->wl.keyboard, &keyboard_listener, term);
+    }
+
+    if (caps & WL_SEAT_CAPABILITY_POINTER) {
+        term->wl.pointer.pointer = wl_seat_get_pointer(wl_seat);
+        wl_pointer_add_listener(term->wl.pointer.pointer, &pointer_listener, term);
+    }
 }
 
 static void
diff --git a/terminal.h b/terminal.h
index a7b6f5cd..4c1e604e 100644
--- a/terminal.h
+++ b/terminal.h
@@ -182,6 +182,11 @@ struct terminal {
     struct rgba foreground;
     struct rgba background;
 
+    struct {
+        int x;
+        int y;
+    } mouse;
+
     struct cursor cursor;
     struct cursor saved_cursor;
     struct cursor alt_saved_cursor;