From e9efca76d4020679fbb9fbe62f6ff94bb0aac16e Mon Sep 17 00:00:00 2001
From: miruka <miruka@disroot.org>
Date: Sat, 21 Dec 2019 13:05:12 -0400
Subject: [PATCH] HDrawer: snap around default size when resize-drag

---
 TODO.md                  |  1 -
 src/gui/Base/HDrawer.qml | 14 ++++++++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/TODO.md b/TODO.md
index 66929b5f..1913569d 100644
--- a/TODO.md
+++ b/TODO.md
@@ -86,7 +86,6 @@
 - Drop the `buttonModel`/`buttonCallbacks` HBox approach
 - Scrollable popups and room settings
 - Improve when HDrawer should collapse when the ui is zoomed
-- HDrawer snapping
 - Make theme error/etc text colors more like name colors
 - In account settings, display name field text should be colored
 - Way to open context menus without a right mouse button
diff --git a/src/gui/Base/HDrawer.qml b/src/gui/Base/HDrawer.qml
index f1105036..6911cc04 100644
--- a/src/gui/Base/HDrawer.qml
+++ b/src/gui/Base/HDrawer.qml
@@ -46,6 +46,9 @@ Drawer {
     property int maximumSize:
         horizontal ? referenceSizeParent.width : referenceSizeParent.height
 
+    property int snapAt: defaultSize
+    property int snapZone: theme.spacing * 2
+
     //
 
     property Item referenceSizeParent: parent
@@ -105,19 +108,26 @@ Drawer {
 
             onMouseXChanged:
                 if (horizontal && pressed) {
-                    drawer.preferredSize =
+                    drawer.preferredSize = snapSize(
                         drawer.calculatedSize +
                         (drawer.edge === Qt.RightEdge ? -mouseX : mouseX)
+                    )
                 }
 
             onMouseYChanged:
                 if (vertical && pressed) {
-                    drawer.preferredSize =
+                    drawer.preferredSize = snapSize(
                         drawer.calculatedSize +
                         (drawer.edge === Qt.BottomEdge ? -mouseY : mouseY)
+                    )
                 }
 
             onReleased: window.saveState(drawer)
+
+            function snapSize(num) {
+                return num < snapAt + snapZone && num  > snapAt - snapZone ?
+                       snapAt : num
+            }
         }
     }
 }