From 430def6e39315b6cee807aba3e4126134b93b164 Mon Sep 17 00:00:00 2001
From: Federico Angelilli <code@fedang.net>
Date: Fri, 15 Mar 2024 00:21:01 +0100
Subject: Fix layout animation and animation handler

---
 src/animate.c |  2 +-
 src/connect.c | 18 +++++++++++-------
 src/draw.c    | 26 ++++++++++++++------------
 src/state.c   | 18 +++++++++++-------
 4 files changed, 37 insertions(+), 27 deletions(-)

diff --git a/src/animate.c b/src/animate.c
index 73ca0eb..9928daa 100644
--- a/src/animate.c
+++ b/src/animate.c
@@ -48,7 +48,7 @@ typedef struct {
 } AnimationShine;
 
 // FIXME: Not working for button group
-bool shine_paint(AnimationShine *shine, cairo_t *cr, const Layout *layout)
+static bool shine_paint(AnimationShine *shine, cairo_t *cr, const Layout *layout)
 {
     gint64 end = shine->anim.start + shine->anim.duration;
     gint64 now = g_get_monotonic_time();
diff --git a/src/connect.c b/src/connect.c
index 71552da..f6c439b 100644
--- a/src/connect.c
+++ b/src/connect.c
@@ -93,20 +93,24 @@ static void button_action(State *state, const char *event, int x, int y)
                       layout->x, layout->y, layout->width, layout->height);
 
             if (in_capsule(x, y, layout->x, layout->y, layout->width, layout->height)) {
-                log_debug("Triggering action for button");
-                ButtonAction action = button_simple_get_action(layout->btn);
+                Button *btn = layout->btn;
+                ButtonAction action = button_simple_get_action(btn);
+
+                // TODO: Button labels
+                log_debug("Triggering action for button [button=%p]", btn);
 
                 if (action != NULL) {
-                    Animation *shine = animation_shine_create(300 * G_TIME_SPAN_MILLISECOND);
+                    // NOTE: Animations may change layout!
+                    //Animation *anim = animation_shine_create(300 * G_TIME_SPAN_MILLISECOND);
+                    Animation *anim = animation_pulse_create(1000 * G_TIME_SPAN_MILLISECOND);
 
-                    if (button_set_animation(layout->btn, shine))
+                    if (button_set_animation(btn, anim))
                         state_request_animation(state);
                     else
-                        animation_destroy(shine);
+                        animation_destroy(anim);
 
-                    action(layout->btn);
+                    action(btn);
                 }
-
                 return;
             }
         } else {
diff --git a/src/draw.c b/src/draw.c
index 5171321..1a8fe5c 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -113,7 +113,7 @@ void draw_paint(Drawer *draw, Window *win)
                 if (!layout->btn->anim->paint_func(layout->btn->anim, cr, layout))
                     layout->btn->anim->paint_func = NULL;
 
-            } else if (layout->btn->anim->paint_func == NULL) {
+            } else if (layout->btn->anim->layout_func == NULL) {
                 // Remove animation if both paint_func and layout_func finished
                 animation_destroy(layout->btn->anim);
                 layout->btn->anim = NULL;
@@ -245,20 +245,22 @@ void draw_compute_layout(Drawer *draw, Window *win, GList *btns)
             }
         }
 
-        if (btn->anim != NULL && btn->anim->layout_func != NULL) {
-            if (layout->btn->anim->start == 0) {
-                layout->btn->anim->start = g_get_monotonic_time();
-                log_debug("Starting animation [start=%ld, duration=%ld, button=%p]",
-                    layout->btn->anim->start, layout->btn->anim->duration, layout->btn);
-            }
-
-            if (!btn->anim->layout_func(btn->anim, layout))
-                btn->anim->layout_func = NULL;
-        }
-
         if (layout->btn->simple) {
             layout->pl = pango_cairo_create_layout(window_get_context(win));
             layout_text(layout, draw->desc, height, radius);
+
+            // TODO: make it work for groups
+            if (btn->anim != NULL && btn->anim->layout_func != NULL) {
+                if (btn->anim->start == 0) {
+                    btn->anim->start = g_get_monotonic_time();
+                    log_debug("Starting animation [type=%d, start=%ld, duration=%ld, button=%p]",
+                        btn->anim->type, btn->anim->start, btn->anim->duration, btn);
+                }
+
+                if (!btn->anim->layout_func(btn->anim, layout))
+                    btn->anim->layout_func = NULL;
+            }
+
             x += layout->width + line_w * 2;
 
             layout->width -= 2 * btn->padding;
diff --git a/src/state.c b/src/state.c
index 0f17695..f35faa2 100644
--- a/src/state.c
+++ b/src/state.c
@@ -67,7 +67,16 @@ void state_request_redraw(State *state, bool relayout)
 
 static gboolean anim_handler(State *state)
 {
-    //log_debug("Animating [relayout=%d]", state->relayout);
+    bool anim = false;
+    for (GList *it = state->btns; it != NULL; it = it->next) {
+        Button *btn = it->data;
+        if (btn->anim != NULL) {
+            anim = true;
+            state->relayout |= btn->anim->layout_func != NULL;
+        }
+    }
+
+    log_debug("Animating [relayout=%d]", state->relayout);
 
     if (state->relayout) {
         draw_compute_layout(state->draw, state->win, state->btns);
@@ -75,12 +84,7 @@ static gboolean anim_handler(State *state)
     }
 
     draw_paint(state->draw, state->win);
-
-    for (GList *it = state->btns; it != NULL; it = it->next) {
-        Button *btn = it->data;
-        if (btn->anim != NULL)
-            return G_SOURCE_CONTINUE;
-    }
+    if (anim) return G_SOURCE_CONTINUE;
 
     state->anim_id = 0;
     return G_SOURCE_REMOVE;
-- 
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