1 files changed, 146 insertions, 0 deletions
diff --git a/extensions/vertical-workspaces/workspace.js b/extensions/vertical-workspaces/workspace.js
new file mode 100644
index 0000000..84ca696
--- /dev/null
+++ b/extensions/vertical-workspaces/workspace.js
@@ -0,0 +1,146 @@
+/**
+ * Vertical Workspaces
+ * workspace.js
+ * 
+ * @author     GdH <G-dH@github.com>
+ * @copyright  2022 - 2023
+ * @license    GPL-3.0
+ *
+ */
+
+'use strict';
+
+const { Clutter, St, Graphene } = imports.gi;
+
+const Main = imports.ui.main;
+const Util = imports.misc.util;
+const Workspace = imports.ui.workspace;
+
+const ExtensionUtils = imports.misc.extensionUtils;
+const Me = ExtensionUtils.getCurrentExtension();
+
+const _Util = Me.imports.util;
+let _overrides;
+
+let opt;
+
+const BACKGROUND_CORNER_RADIUS_PIXELS = 40;
+
+
+function update(reset = false) {
+    if (_overrides) {
+        _overrides.removeAll();
+    }
+
+    if (reset) {
+        imports.ui.workspace.WINDOW_PREVIEW_MAXIMUM_SCALE = 0.95;
+        _overrides = null;
+        opt = null;
+        return;
+    }
+
+    opt = Me.imports.settings.opt;
+
+    _overrides = new _Util.Overrides();
+
+    _overrides.addOverride('WorkspaceBackground', Workspace.WorkspaceBackground.prototype, WorkspaceBackground);
+    // fix window scaling in workspace state 0
+    _overrides.addInjection('WorkspaceLayout', Workspace.WorkspaceLayout.prototype, WorkspaceLayoutInjections);
+
+    // fix overlay base for Vertical Workspaces
+    _overrides.addOverride('WorkspaceLayout', Workspace.WorkspaceLayout.prototype, WorkspaceLayout);
+}
+
+
+// workaround for upstream bug (that is not that invisible in default shell)
+// smaller window cannot be scaled below 0.95 (WINDOW_PREVIEW_MAXIMUM_SCALE)
+// when its target scale for spread windows view (workspace state 1) is bigger than the scale needed for ws state 0.
+// in workspace state 0 where windows are not spread and window scale should follow workspace scale,
+// this window follows proper top left corner position, but doesn't scale with the workspace
+// so it looks bad and the window can exceed border of the workspace
+// extremely annoying in OVERVIEW_MODE 1 with single smaller window on the workspace, also affects appGrid transition animation
+var WorkspaceLayoutInjections = {
+    _init: function() {
+        this._stateAdjustment.connect('notify::value', () => {
+            if (opt.OVERVIEW_MODE !== 1) return;
+            // scale 0.1 for window state 0 just needs to be smaller then possible scale of any window in spread view
+            const scale = this._stateAdjustment.value ? 0.95 : 0.1;
+            if (scale !== Workspace.WINDOW_PREVIEW_MAXIMUM_SCALE || this._stateAdjustment.value === 1) {
+                // when transition to ws state 1 begins, replace the constant with the original one
+                // disadvantage - the value changes for all workspaces, so one affects others
+                // that can be visible in certain situations but not a big deal.
+                Workspace.WINDOW_PREVIEW_MAXIMUM_SCALE = scale;
+                // and force recalculation of the target layout, so the transition will be smooth
+                this._needsLayout = true;
+            }
+        });
+    }
+}
+
+var WorkspaceLayout = {
+    // this fixes wrong size and position calculation of window clones while moving overview to the next (+1) workspace if vertical ws orientation is enabled in GS
+    _adjustSpacingAndPadding: function(rowSpacing, colSpacing, containerBox) {
+        if (this._sortedWindows.length === 0)
+            return [rowSpacing, colSpacing, containerBox];
+
+        // All of the overlays have the same chrome sizes,
+        // so just pick the first one.
+        const window = this._sortedWindows[0];
+
+        const [topOversize, bottomOversize] = window.chromeHeights();
+        const [leftOversize, rightOversize] = window.chromeWidths();
+
+        const oversize = Math.max(topOversize, bottomOversize, leftOversize, rightOversize);
+
+        if (rowSpacing !== null)
+            rowSpacing += oversize;
+        if (colSpacing !== null)
+            colSpacing += oversize;
+
+        if (containerBox) {
+            const vertical = global.workspaceManager.layout_rows === -1;
+
+            const monitor = Main.layoutManager.monitors[this._monitorIndex];
+
+            const bottomPoint = new Graphene.Point3D();
+            if (vertical) {
+                bottomPoint.x = containerBox.x2;
+            } else {
+                bottomPoint.y = containerBox.y2;
+            }
+
+            const transformedBottomPoint =
+                this._container.apply_transform_to_point(bottomPoint);
+            const bottomFreeSpace = vertical
+                ? (monitor.x + monitor.height) - transformedBottomPoint.x
+                : (monitor.y + monitor.height) - transformedBottomPoint.y;
+
+            const [, bottomOverlap] = window.overlapHeights();
+
+            if ((bottomOverlap + oversize) > bottomFreeSpace && !vertical) {
+                containerBox.y2 -= (bottomOverlap + oversize) - bottomFreeSpace;
+            }
+        }
+
+        return [rowSpacing, colSpacing, containerBox];
+    }
+}
+
+var WorkspaceBackground = {
+    _updateBorderRadius: function(value = false) {
+        // don't round already rounded corners during exposing windows
+        if (value === false && opt.OVERVIEW_MODE === 1) {
+            return;
+        }
+        const { scaleFactor } = St.ThemeContext.get_for_stage(global.stage);
+        const cornerRadius = scaleFactor * BACKGROUND_CORNER_RADIUS_PIXELS;
+
+        const backgroundContent = this._bgManager.backgroundActor.content;
+        value = (value !==false)
+                ? value
+                : this._stateAdjustment.value;
+
+        backgroundContent.rounded_clip_radius =
+            Util.lerp(0, cornerRadius, value);
+    }
+}