[gnome-shell/wip/fmuellner/ease-actors: 4/12] dash: Directly tween actors

[Florian Müllner <fmuellner src gnome org>]

commit 8eb88d17fea6692eaa03d1245486364391e83600
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Jul 21 07:08:33 2018 +0200

    dash: Directly tween actors
    
    Dash items are currently animated via the custom "childScale" and
    "childOpacity" properties. However since commit efb3025d8cdb, those
    properties actually control the scale-x/scale-y and opacity properties
    of the actor itself (not the child), so cut out the intermediate
    custom properties in favor of the "real" ones.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/22

 js/ui/dash.js | 50 ++++++++++++++------------------------------------
 1 file changed, 14 insertions(+), 36 deletions(-)
---
diff --git a/js/ui/dash.js b/js/ui/dash.js
index d3206aa4f..75749d48f 100644
--- a/js/ui/dash.js
+++ b/js/ui/dash.js
@@ -32,6 +32,9 @@ class DashItemContainer extends St.Widget {
     _init() {
         super._init({ style_class: 'dash-item-container',
                       pivot_point: new Clutter.Point({ x: .5, y: .5 }),
+                      scale_x: 0,
+                      scale_y: 0,
+                      opacity: 0,
                       x_expand: true,
                       x_align: Clutter.ActorAlign.CENTER });
 
@@ -42,10 +45,11 @@ class DashItemContainer extends St.Widget {
         this.label_actor = this.label;
 
         this.child = null;
-        this._childScale = 0;
-        this._childOpacity = 0;
         this.animatingOut = false;
 
+        this.connect('notify::scale-x', () => this.queue_relayout());
+        this.connect('notify::scale-y', () => this.queue_relayout());
+
         this.connect('destroy', () => {
             if (this.child != null)
                 this.child.destroy();
@@ -127,9 +131,6 @@ class DashItemContainer extends St.Widget {
 
         this.child = actor;
         this.add_actor(this.child);
-
-        this.set_scale(this._childScale, this._childScale);
-        this.set_opacity(this._childOpacity);
     }
 
     show(animate) {
@@ -138,8 +139,9 @@ class DashItemContainer extends St.Widget {
 
         let time = animate ? DASH_ANIMATION_TIME : 0;
         Tweener.addTween(this,
-                         { childScale: 1.0,
-                           childOpacity: 255,
+                         { scale_x: 1.0,
+                           scale_y: 1.0,
+                           opacity: 255,
                            time: time / 1000,
                            transition: 'easeOutQuad'
                          });
@@ -155,37 +157,14 @@ class DashItemContainer extends St.Widget {
 
         this.animatingOut = true;
         Tweener.addTween(this,
-                         { childScale: 0.0,
-                           childOpacity: 0,
+                         { scale_x: 0,
+                           scale_y: 0,
+                           opacity: 0,
                            time: DASH_ANIMATION_TIME / 1000,
                            transition: 'easeOutQuad',
-                           onComplete: () => {
-                               this.destroy();
-                           }
+                           onComplete: () => this.destroy()
                          });
     }
-
-    set childScale(scale) {
-        this._childScale = scale;
-
-        this.set_scale(scale, scale);
-        this.queue_relayout();
-    }
-
-    get childScale() {
-        return this._childScale;
-    }
-
-    set childOpacity(opacity) {
-        this._childOpacity = opacity;
-
-        this.set_opacity(opacity);
-        this.queue_redraw();
-    }
-
-    get childOpacity() {
-        return this._childOpacity;
-    }
 });
 
 var ShowAppsIcon = GObject.registerClass(
@@ -352,8 +331,7 @@ var Dash = class Dash {
         this._container.set_offscreen_redirect(Clutter.OffscreenRedirect.ALWAYS);
 
         this._showAppsIcon = new ShowAppsIcon();
-        this._showAppsIcon.childScale = 1;
-        this._showAppsIcon.childOpacity = 255;
+        this._showAppsIcon.show(false);
         this._showAppsIcon.icon.setIconSize(this.iconSize);
         this._hookUpLabel(this._showAppsIcon);