[gnome-shell/gbsneto/custom-icon-positions: 8/35] appDisplay: Move child focus handling to IconGrid



commit 85949ffcd9150cf0e4643db76039414173f07ed0
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue May 19 15:34:11 2020 -0300

    appDisplay: Move child focus handling to IconGrid
    
    The icon grid is always paginated, so the app grid code doesn't need
    to behave differently in the FolderView and AppDisplay.
    
    Move the keyboard handling to IconGrid itself, and remove the now dead
    code from AppDisplay.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1271

 js/ui/appDisplay.js | 16 ----------------
 js/ui/iconGrid.js   | 13 +++++++++++--
 2 files changed, 11 insertions(+), 18 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 0097c3d9f5..3191bcbece 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -128,9 +128,6 @@ var BaseAppView = GObject.registerClass({
         super._init(params);
 
         this._grid = new IconGrid.IconGrid();
-        this._grid.connect('child-focused', (grid, actor) => {
-            this._childFocused(actor);
-        });
         // Standard hack for ClutterBinLayout
         this._grid.x_expand = true;
 
@@ -148,10 +145,6 @@ var BaseAppView = GObject.registerClass({
         });
     }
 
-    _childFocused(_actor) {
-        // Nothing by default
-    }
-
     _redisplay() {
         let oldApps = this._orderedItems.slice();
         let oldAppIds = oldApps.map(icon => icon.id);
@@ -736,11 +729,6 @@ class AppDisplay extends BaseAppView {
         });
     }
 
-    _childFocused(icon) {
-        let itemPage = this._grid.getItemPage(icon);
-        this.goToPage(itemPage);
-    }
-
     _updateIconOpacities(folderOpen) {
         for (let icon of this._items.values()) {
             let opacity;
@@ -1068,10 +1056,6 @@ class FolderView extends BaseAppView {
         this._redisplay();
     }
 
-    _childFocused(actor) {
-        Util.ensureActorVisibleInScrollView(this._scrollView, actor);
-    }
-
     // Overridden from BaseAppView
     animate(animationDirection) {
         this._grid.animatePulse(animationDirection);
diff --git a/js/ui/iconGrid.js b/js/ui/iconGrid.js
index 688b3362b4..50429fb362 100644
--- a/js/ui/iconGrid.js
+++ b/js/ui/iconGrid.js
@@ -1111,7 +1111,6 @@ var IconGrid = GObject.registerClass({
     Signals: {
         'pages-changed': {},
         'animation-done': {},
-        'child-focused': { param_types: [Clutter.Actor.$gtype] },
     },
 }, class IconGrid extends St.Viewport {
     _init(layoutParams = {}) {
@@ -1166,7 +1165,9 @@ var IconGrid = GObject.registerClass({
     }
 
     _childAdded(grid, child) {
-        child._iconGridKeyFocusInId = child.connect('key-focus-in', actor => this.emit('child-focused', 
actor));
+        child._iconGridKeyFocusInId = child.connect('key-focus-in', () => {
+            this._ensureItemIsVisible(child);
+        });
 
         child._paintVisible = child.opacity > 0;
         child._opacityChangedId = child.connect('notify::opacity', () => {
@@ -1177,6 +1178,14 @@ var IconGrid = GObject.registerClass({
         });
     }
 
+    _ensureItemIsVisible(item) {
+        if (!this.contains(item))
+            throw new Error(`${item} is not a child of IconGrid`);
+
+        const itemPage = this.layout_manager.getItemPage(item);
+        this.goToPage(itemPage);
+    }
+
     _setGridMode(modeIndex) {
         if (this._currentMode === modeIndex)
             return;


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