Adding upstream version 43.9.upstream/43.9upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2897 insertions, 0 deletions

diff --git a/js/ui/screenshot.js b/js/ui/screenshot.js
new file mode 100644
index 0000000..5139052
--- /dev/null
+++ b/js/ui/screenshot.js
@@ -0,0 +1,2897 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+/* exported ScreenshotService, ScreenshotUI, showScreenshotUI, captureScreenshot */
+
+const { Clutter, Cogl, Gio, GObject, GLib, Graphene, Gtk, Meta, Shell, St } = imports.gi;
+
+const GrabHelper = imports.ui.grabHelper;
+const Layout = imports.ui.layout;
+const Lightbox = imports.ui.lightbox;
+const Main = imports.ui.main;
+const MessageTray = imports.ui.messageTray;
+const Workspace = imports.ui.workspace;
+
+Gio._promisify(Shell.Screenshot.prototype, 'pick_color');
+Gio._promisify(Shell.Screenshot.prototype, 'screenshot');
+Gio._promisify(Shell.Screenshot.prototype, 'screenshot_window');
+Gio._promisify(Shell.Screenshot.prototype, 'screenshot_area');
+Gio._promisify(Shell.Screenshot.prototype, 'screenshot_stage_to_content');
+Gio._promisify(Shell.Screenshot, 'composite_to_stream');
+
+const { loadInterfaceXML } = imports.misc.fileUtils;
+const { DBusSenderChecker } = imports.misc.util;
+
+const ScreenshotIface = loadInterfaceXML('org.gnome.Shell.Screenshot');
+
+const ScreencastIface = loadInterfaceXML('org.gnome.Shell.Screencast');
+const ScreencastProxy = Gio.DBusProxy.makeProxyWrapper(ScreencastIface);
+
+var IconLabelButton = GObject.registerClass(
+class IconLabelButton extends St.Button {
+    _init(iconName, label, params) {
+        super._init(params);
+
+        this._container = new St.BoxLayout({
+            vertical: true,
+            style_class: 'icon-label-button-container',
+        });
+        this.set_child(this._container);
+
+        this._container.add_child(new St.Icon({ icon_name: iconName }));
+        this._container.add_child(new St.Label({
+            text: label,
+            x_align: Clutter.ActorAlign.CENTER,
+        }));
+    }
+});
+
+var Tooltip = GObject.registerClass(
+class Tooltip extends St.Label {
+    _init(widget, params) {
+        super._init(params);
+
+        this._widget = widget;
+        this._timeoutId = null;
+
+        this._widget.connect('notify::hover', () => {
+            if (this._widget.hover)
+                this.open();
+            else
+                this.close();
+        });
+    }
+
+    open() {
+        if (this._timeoutId)
+            return;
+
+        this._timeoutId = GLib.timeout_add(GLib.PRIORITY_DEFAULT, 300, () => {
+            this.opacity = 0;
+            this.show();
+
+            const extents = this._widget.get_transformed_extents();
+
+            const xOffset = Math.floor((extents.get_width() - this.width) / 2);
+            const x =
+                Math.clamp(extents.get_x() + xOffset, 0, global.stage.width - this.width);
+
+            const node = this.get_theme_node();
+            const yOffset = node.get_length('-y-offset');
+
+            const y = extents.get_y() - this.height - yOffset;
+
+            this.set_position(x, y);
+            this.ease({
+                opacity: 255,
+                duration: 150,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            });
+
+            this._timeoutId = null;
+            return GLib.SOURCE_REMOVE;
+        });
+        GLib.Source.set_name_by_id(this._timeoutId, '[gnome-shell] tooltip.open');
+    }
+
+    close() {
+        if (this._timeoutId) {
+            GLib.source_remove(this._timeoutId);
+            this._timeoutId = null;
+            return;
+        }
+
+        if (!this.visible)
+            return;
+
+        this.remove_all_transitions();
+        this.ease({
+            opacity: 0,
+            duration: 100,
+            mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            onComplete: () => this.hide(),
+        });
+    }
+});
+
+var UIAreaIndicator = GObject.registerClass(
+class UIAreaIndicator extends St.Widget {
+    _init(params) {
+        super._init(params);
+
+        this._topRect = new St.Widget({ style_class: 'screenshot-ui-area-indicator-shade' });
+        this._topRect.add_constraint(new Clutter.BindConstraint({
+            source: this,
+            coordinate: Clutter.BindCoordinate.WIDTH,
+        }));
+        this._topRect.add_constraint(new Clutter.SnapConstraint({
+            source: this,
+            from_edge: Clutter.SnapEdge.TOP,
+            to_edge: Clutter.SnapEdge.TOP,
+        }));
+        this._topRect.add_constraint(new Clutter.SnapConstraint({
+            source: this,
+            from_edge: Clutter.SnapEdge.LEFT,
+            to_edge: Clutter.SnapEdge.LEFT,
+        }));
+        this.add_child(this._topRect);
+
+        this._bottomRect = new St.Widget({ style_class: 'screenshot-ui-area-indicator-shade' });
+        this._bottomRect.add_constraint(new Clutter.BindConstraint({
+            source: this,
+            coordinate: Clutter.BindCoordinate.WIDTH,
+        }));
+        this._bottomRect.add_constraint(new Clutter.SnapConstraint({
+            source: this,
+            from_edge: Clutter.SnapEdge.BOTTOM,
+            to_edge: Clutter.SnapEdge.BOTTOM,
+        }));
+        this._bottomRect.add_constraint(new Clutter.SnapConstraint({
+            source: this,
+            from_edge: Clutter.SnapEdge.LEFT,
+            to_edge: Clutter.SnapEdge.LEFT,
+        }));
+        this.add_child(this._bottomRect);
+
+        this._leftRect = new St.Widget({ style_class: 'screenshot-ui-area-indicator-shade' });
+        this._leftRect.add_constraint(new Clutter.SnapConstraint({
+            source: this,
+            from_edge: Clutter.SnapEdge.LEFT,
+            to_edge: Clutter.SnapEdge.LEFT,
+        }));
+        this._leftRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._topRect,
+            from_edge: Clutter.SnapEdge.TOP,
+            to_edge: Clutter.SnapEdge.BOTTOM,
+        }));
+        this._leftRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._bottomRect,
+            from_edge: Clutter.SnapEdge.BOTTOM,
+            to_edge: Clutter.SnapEdge.TOP,
+        }));
+        this.add_child(this._leftRect);
+
+        this._rightRect = new St.Widget({ style_class: 'screenshot-ui-area-indicator-shade' });
+        this._rightRect.add_constraint(new Clutter.SnapConstraint({
+            source: this,
+            from_edge: Clutter.SnapEdge.RIGHT,
+            to_edge: Clutter.SnapEdge.RIGHT,
+        }));
+        this._rightRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._topRect,
+            from_edge: Clutter.SnapEdge.TOP,
+            to_edge: Clutter.SnapEdge.BOTTOM,
+        }));
+        this._rightRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._bottomRect,
+            from_edge: Clutter.SnapEdge.BOTTOM,
+            to_edge: Clutter.SnapEdge.TOP,
+        }));
+        this.add_child(this._rightRect);
+
+        this._selectionRect = new St.Widget({ style_class: 'screenshot-ui-area-indicator-selection' });
+        this.add_child(this._selectionRect);
+
+        this._topRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._selectionRect,
+            from_edge: Clutter.SnapEdge.BOTTOM,
+            to_edge: Clutter.SnapEdge.TOP,
+        }));
+
+        this._bottomRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._selectionRect,
+            from_edge: Clutter.SnapEdge.TOP,
+            to_edge: Clutter.SnapEdge.BOTTOM,
+        }));
+
+        this._leftRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._selectionRect,
+            from_edge: Clutter.SnapEdge.RIGHT,
+            to_edge: Clutter.SnapEdge.LEFT,
+        }));
+
+        this._rightRect.add_constraint(new Clutter.SnapConstraint({
+            source: this._selectionRect,
+            from_edge: Clutter.SnapEdge.LEFT,
+            to_edge: Clutter.SnapEdge.RIGHT,
+        }));
+    }
+
+    setSelectionRect(x, y, width, height) {
+        this._selectionRect.set_position(x, y);
+        this._selectionRect.set_size(width, height);
+    }
+});
+
+var UIAreaSelector = GObject.registerClass({
+    Signals: { 'drag-started': {}, 'drag-ended': {} },
+}, class UIAreaSelector extends St.Widget {
+    _init(params) {
+        super._init(params);
+
+        // During a drag, this can be Clutter.BUTTON_PRIMARY,
+        // Clutter.BUTTON_SECONDARY or the string "touch" to identify the source
+        // of the drag operation.
+        this._dragButton = 0;
+        this._dragSequence = null;
+
+        this._areaIndicator = new UIAreaIndicator();
+        this._areaIndicator.add_constraint(new Clutter.BindConstraint({
+            source: this,
+            coordinate: Clutter.BindCoordinate.ALL,
+        }));
+        this.add_child(this._areaIndicator);
+
+        this._topLeftHandle = new St.Widget({ style_class: 'screenshot-ui-area-selector-handle' });
+        this.add_child(this._topLeftHandle);
+        this._topRightHandle = new St.Widget({ style_class: 'screenshot-ui-area-selector-handle' });
+        this.add_child(this._topRightHandle);
+        this._bottomLeftHandle = new St.Widget({ style_class: 'screenshot-ui-area-selector-handle' });
+        this.add_child(this._bottomLeftHandle);
+        this._bottomRightHandle = new St.Widget({ style_class: 'screenshot-ui-area-selector-handle' });
+        this.add_child(this._bottomRightHandle);
+
+        // This will be updated before the first drawn frame.
+        this._handleSize = 0;
+        this._topLeftHandle.connect('style-changed', widget => {
+            this._handleSize = widget.get_theme_node().get_width();
+            this._updateSelectionRect();
+        });
+
+        this.connect('notify::mapped', () => {
+            if (this.mapped) {
+                const [x, y] = global.get_pointer();
+                this._updateCursor(x, y);
+            }
+        });
+
+        // Initialize area to out of bounds so reset() below resets it.
+        this._startX = -1;
+        this._startY = 0;
+        this._lastX = 0;
+        this._lastY = 0;
+
+        this.reset();
+    }
+
+    reset() {
+        this.stopDrag();
+        global.display.set_cursor(Meta.Cursor.DEFAULT);
+
+        // Preserve area selection if possible. If the area goes out of bounds,
+        // the monitors might have changed, so reset the area.
+        const [x, y, w, h] = this.getGeometry();
+        if (x < 0 || y < 0 || x + w > this.width || y + h > this.height) {
+            // Initialize area to out of bounds so if there's no monitor,
+            // the area will be reset once a monitor does appear.
+            this._startX = -1;
+            this._startY = 0;
+            this._lastX = 0;
+            this._lastY = 0;
+
+            // This can happen when running headless without any monitors.
+            if (Main.layoutManager.primaryIndex !== -1) {
+                const monitor =
+                    Main.layoutManager.monitors[Main.layoutManager.primaryIndex];
+
+                this._startX = monitor.x + Math.floor(monitor.width * 3 / 8);
+                this._startY = monitor.y + Math.floor(monitor.height * 3 / 8);
+                this._lastX = monitor.x + Math.floor(monitor.width * 5 / 8) - 1;
+                this._lastY = monitor.y + Math.floor(monitor.height * 5 / 8) - 1;
+            }
+
+            this._updateSelectionRect();
+        }
+    }
+
+    getGeometry() {
+        const leftX = Math.min(this._startX, this._lastX);
+        const topY = Math.min(this._startY, this._lastY);
+        const rightX = Math.max(this._startX, this._lastX);
+        const bottomY = Math.max(this._startY, this._lastY);
+
+        return [leftX, topY, rightX - leftX + 1, bottomY - topY + 1];
+    }
+
+    _updateSelectionRect() {
+        const [x, y, w, h] = this.getGeometry();
+        this._areaIndicator.setSelectionRect(x, y, w, h);
+
+        const offset = this._handleSize / 2;
+        this._topLeftHandle.set_position(x - offset, y - offset);
+        this._topRightHandle.set_position(x + w - 1 - offset, y - offset);
+        this._bottomLeftHandle.set_position(x - offset, y + h - 1 - offset);
+        this._bottomRightHandle.set_position(x + w - 1 - offset, y + h - 1 - offset);
+    }
+
+    _computeCursorType(cursorX, cursorY) {
+        const [leftX, topY, width, height] = this.getGeometry();
+        const [rightX, bottomY] = [leftX + width - 1, topY + height - 1];
+        const [x, y] = [cursorX, cursorY];
+
+        // Check if the cursor overlaps the handles first.
+        const limit = (this._handleSize / 2) ** 2;
+        if ((leftX - x) ** 2 + (topY - y) ** 2 <= limit)
+            return Meta.Cursor.NW_RESIZE;
+        else if ((rightX - x) ** 2 + (topY - y) ** 2 <= limit)
+            return Meta.Cursor.NE_RESIZE;
+        else if ((leftX - x) ** 2 + (bottomY - y) ** 2 <= limit)
+            return Meta.Cursor.SW_RESIZE;
+        else if ((rightX - x) ** 2 + (bottomY - y) ** 2 <= limit)
+            return Meta.Cursor.SE_RESIZE;
+
+        // Now check the rest of the rectangle.
+        const threshold =
+            10 * St.ThemeContext.get_for_stage(global.stage).scaleFactor;
+
+        if (leftX - x >= 0 && leftX - x <= threshold) {
+            if (topY - y >= 0 && topY - y <= threshold)
+                return Meta.Cursor.NW_RESIZE;
+            else if (y - bottomY >= 0 && y - bottomY <= threshold)
+                return Meta.Cursor.SW_RESIZE;
+            else if (topY - y < 0 && y - bottomY < 0)
+                return Meta.Cursor.WEST_RESIZE;
+        } else if (x - rightX >= 0 && x - rightX <= threshold) {
+            if (topY - y >= 0 && topY - y <= threshold)
+                return Meta.Cursor.NE_RESIZE;
+            else if (y - bottomY >= 0 && y - bottomY <= threshold)
+                return Meta.Cursor.SE_RESIZE;
+            else if (topY - y < 0 && y - bottomY < 0)
+                return Meta.Cursor.EAST_RESIZE;
+        } else if (leftX - x < 0 && x - rightX < 0) {
+            if (topY - y >= 0 && topY - y <= threshold)
+                return Meta.Cursor.NORTH_RESIZE;
+            else if (y - bottomY >= 0 && y - bottomY <= threshold)
+                return Meta.Cursor.SOUTH_RESIZE;
+            else if (topY - y < 0 && y - bottomY < 0)
+                return Meta.Cursor.MOVE_OR_RESIZE_WINDOW;
+        }
+
+        return Meta.Cursor.CROSSHAIR;
+    }
+
+    stopDrag() {
+        if (!this._dragButton)
+            return;
+
+        if (this._dragGrab) {
+            this._dragGrab.dismiss();
+            this._dragGrab = null;
+        }
+
+        this._dragButton = 0;
+        this._dragSequence = null;
+
+        if (this._dragCursor === Meta.Cursor.CROSSHAIR &&
+            this._lastX === this._startX && this._lastY === this._startY) {
+            // The user clicked without dragging. Make up a larger selection
+            // to reduce confusion.
+            const offset =
+                20 * St.ThemeContext.get_for_stage(global.stage).scaleFactor;
+            this._startX -= offset;
+            this._startY -= offset;
+            this._lastX += offset;
+            this._lastY += offset;
+
+            // Keep the coordinates inside the stage.
+            if (this._startX < 0) {
+                this._lastX -= this._startX;
+                this._startX = 0;
+            } else if (this._lastX >= this.width) {
+                this._startX -= this._lastX - this.width + 1;
+                this._lastX = this.width - 1;
+            }
+
+            if (this._startY < 0) {
+                this._lastY -= this._startY;
+                this._startY = 0;
+            } else if (this._lastY >= this.height) {
+                this._startY -= this._lastY - this.height + 1;
+                this._lastY = this.height - 1;
+            }
+
+            this._updateSelectionRect();
+        }
+
+        this.emit('drag-ended');
+    }
+
+    _updateCursor(x, y) {
+        const cursor = this._computeCursorType(x, y);
+        global.display.set_cursor(cursor);
+    }
+
+    _onPress(event, button, sequence) {
+        if (this._dragButton)
+            return Clutter.EVENT_PROPAGATE;
+
+        const cursor = this._computeCursorType(event.x, event.y);
+
+        // Clicking outside of the selection, or using the right mouse button,
+        // or with Ctrl results in dragging a new selection from scratch.
+        if (cursor === Meta.Cursor.CROSSHAIR ||
+            button === Clutter.BUTTON_SECONDARY ||
+            (event.modifier_state & Clutter.ModifierType.CONTROL_MASK)) {
+            this._dragButton = button;
+
+            this._dragCursor = Meta.Cursor.CROSSHAIR;
+            global.display.set_cursor(Meta.Cursor.CROSSHAIR);
+
+            [this._startX, this._startY] = [event.x, event.y];
+            this._lastX = this._startX = Math.floor(this._startX);
+            this._lastY = this._startY = Math.floor(this._startY);
+
+            this._updateSelectionRect();
+        } else {
+            // This is a move or resize operation.
+            this._dragButton = button;
+
+            this._dragCursor = cursor;
+            this._dragStartX = event.x;
+            this._dragStartY = event.y;
+
+            const [leftX, topY, width, height] = this.getGeometry();
+            const rightX = leftX + width - 1;
+            const bottomY = topY + height - 1;
+
+            // For moving, start X and Y are the top left corner, while
+            // last X and Y are the bottom right corner.
+            if (cursor === Meta.Cursor.MOVE_OR_RESIZE_WINDOW) {
+                this._startX = leftX;
+                this._startY = topY;
+                this._lastX = rightX;
+                this._lastY = bottomY;
+            }
+
+            // Start X and Y are set to the stationary sides, while last X
+            // and Y are set to the moving sides.
+            if (cursor === Meta.Cursor.NW_RESIZE ||
+                cursor === Meta.Cursor.WEST_RESIZE ||
+                cursor === Meta.Cursor.SW_RESIZE) {
+                this._startX = rightX;
+                this._lastX = leftX;
+            }
+            if (cursor === Meta.Cursor.NE_RESIZE ||
+                cursor === Meta.Cursor.EAST_RESIZE ||
+                cursor === Meta.Cursor.SE_RESIZE) {
+                this._startX = leftX;
+                this._lastX = rightX;
+            }
+            if (cursor === Meta.Cursor.NW_RESIZE ||
+                cursor === Meta.Cursor.NORTH_RESIZE ||
+                cursor === Meta.Cursor.NE_RESIZE) {
+                this._startY = bottomY;
+                this._lastY = topY;
+            }
+            if (cursor === Meta.Cursor.SW_RESIZE ||
+                cursor === Meta.Cursor.SOUTH_RESIZE ||
+                cursor === Meta.Cursor.SE_RESIZE) {
+                this._startY = topY;
+                this._lastY = bottomY;
+            }
+        }
+
+        if (this._dragButton) {
+            this._dragGrab = global.stage.grab(this);
+            this._dragSequence = sequence;
+
+            this.emit('drag-started');
+
+            return Clutter.EVENT_STOP;
+        }
+
+        return Clutter.EVENT_PROPAGATE;
+    }
+
+    _onRelease(event, button, sequence) {
+        if (this._dragButton !== button ||
+            this._dragSequence?.get_slot() !== sequence?.get_slot())
+            return Clutter.EVENT_PROPAGATE;
+
+        this.stopDrag();
+
+        // We might have finished creating a new selection, so we need to
+        // update the cursor.
+        this._updateCursor(event.x, event.y);
+
+        return Clutter.EVENT_STOP;
+    }
+
+    _onMotion(event, sequence) {
+        if (!this._dragButton) {
+            this._updateCursor(event.x, event.y);
+            return Clutter.EVENT_PROPAGATE;
+        }
+
+        if (sequence?.get_slot() !== this._dragSequence?.get_slot())
+            return Clutter.EVENT_PROPAGATE;
+
+        if (this._dragCursor === Meta.Cursor.CROSSHAIR) {
+            [this._lastX, this._lastY] = [event.x, event.y];
+            this._lastX = Math.floor(this._lastX);
+            this._lastY = Math.floor(this._lastY);
+        } else {
+            let dx = Math.round(event.x - this._dragStartX);
+            let dy = Math.round(event.y - this._dragStartY);
+
+            if (this._dragCursor === Meta.Cursor.MOVE_OR_RESIZE_WINDOW) {
+                const [,, selectionWidth, selectionHeight] = this.getGeometry();
+
+                let newStartX = this._startX + dx;
+                let newStartY = this._startY + dy;
+                let newLastX = this._lastX + dx;
+                let newLastY = this._lastY + dy;
+
+                let overshootX = 0;
+                let overshootY = 0;
+
+                // Keep the size intact if we bumped into the stage edge.
+                if (newStartX < 0) {
+                    overshootX = 0 - newStartX;
+                    newStartX = 0;
+                    newLastX = newStartX + (selectionWidth - 1);
+                } else if (newLastX > this.width - 1) {
+                    overshootX = (this.width - 1) - newLastX;
+                    newLastX = this.width - 1;
+                    newStartX = newLastX - (selectionWidth - 1);
+                }
+
+                if (newStartY < 0) {
+                    overshootY = 0 - newStartY;
+                    newStartY = 0;
+                    newLastY = newStartY + (selectionHeight - 1);
+                } else if (newLastY > this.height - 1) {
+                    overshootY = (this.height - 1) - newLastY;
+                    newLastY = this.height - 1;
+                    newStartY = newLastY - (selectionHeight - 1);
+                }
+
+                // Add the overshoot to the delta to create a "rubberbanding"
+                // behavior of the pointer when dragging.
+                dx += overshootX;
+                dy += overshootY;
+
+                this._startX = newStartX;
+                this._startY = newStartY;
+                this._lastX = newLastX;
+                this._lastY = newLastY;
+            } else {
+                if (this._dragCursor === Meta.Cursor.WEST_RESIZE ||
+                    this._dragCursor === Meta.Cursor.EAST_RESIZE)
+                    dy = 0;
+                if (this._dragCursor === Meta.Cursor.NORTH_RESIZE ||
+                    this._dragCursor === Meta.Cursor.SOUTH_RESIZE)
+                    dx = 0;
+
+                // Make sure last X and Y are clamped between 0 and size - 1,
+                // while always preserving the cursor dragging position relative
+                // to the selection rectangle.
+                this._lastX += dx;
+                if (this._lastX >= this.width) {
+                    dx -= this._lastX - this.width + 1;
+                    this._lastX = this.width - 1;
+                } else if (this._lastX < 0) {
+                    dx -= this._lastX;
+                    this._lastX = 0;
+                }
+
+                this._lastY += dy;
+                if (this._lastY >= this.height) {
+                    dy -= this._lastY - this.height + 1;
+                    this._lastY = this.height - 1;
+                } else if (this._lastY < 0) {
+                    dy -= this._lastY;
+                    this._lastY = 0;
+                }
+
+                // If we drag the handle past a selection side, update which
+                // handles are which.
+                if (this._lastX > this._startX) {
+                    if (this._dragCursor === Meta.Cursor.NW_RESIZE)
+                        this._dragCursor = Meta.Cursor.NE_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.SW_RESIZE)
+                        this._dragCursor = Meta.Cursor.SE_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.WEST_RESIZE)
+                        this._dragCursor = Meta.Cursor.EAST_RESIZE;
+                } else {
+                    // eslint-disable-next-line no-lonely-if
+                    if (this._dragCursor === Meta.Cursor.NE_RESIZE)
+                        this._dragCursor = Meta.Cursor.NW_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.SE_RESIZE)
+                        this._dragCursor = Meta.Cursor.SW_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.EAST_RESIZE)
+                        this._dragCursor = Meta.Cursor.WEST_RESIZE;
+                }
+
+                if (this._lastY > this._startY) {
+                    if (this._dragCursor === Meta.Cursor.NW_RESIZE)
+                        this._dragCursor = Meta.Cursor.SW_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.NE_RESIZE)
+                        this._dragCursor = Meta.Cursor.SE_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.NORTH_RESIZE)
+                        this._dragCursor = Meta.Cursor.SOUTH_RESIZE;
+                } else {
+                    // eslint-disable-next-line no-lonely-if
+                    if (this._dragCursor === Meta.Cursor.SW_RESIZE)
+                        this._dragCursor = Meta.Cursor.NW_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.SE_RESIZE)
+                        this._dragCursor = Meta.Cursor.NE_RESIZE;
+                    else if (this._dragCursor === Meta.Cursor.SOUTH_RESIZE)
+                        this._dragCursor = Meta.Cursor.NORTH_RESIZE;
+                }
+
+                global.display.set_cursor(this._dragCursor);
+            }
+
+            this._dragStartX += dx;
+            this._dragStartY += dy;
+        }
+
+        this._updateSelectionRect();
+
+        return Clutter.EVENT_STOP;
+    }
+
+    vfunc_button_press_event(event) {
+        if (event.button === Clutter.BUTTON_PRIMARY ||
+            event.button === Clutter.BUTTON_SECONDARY)
+            return this._onPress(event, event.button, null);
+
+        return Clutter.EVENT_PROPAGATE;
+    }
+
+    vfunc_button_release_event(event) {
+        if (event.button === Clutter.BUTTON_PRIMARY ||
+            event.button === Clutter.BUTTON_SECONDARY)
+            return this._onRelease(event, event.button, null);
+
+        return Clutter.EVENT_PROPAGATE;
+    }
+
+    vfunc_motion_event(event) {
+        return this._onMotion(event, null);
+    }
+
+    vfunc_touch_event(event) {
+        if (event.type === Clutter.EventType.TOUCH_BEGIN)
+            return this._onPress(event, 'touch', event.sequence);
+        else if (event.type === Clutter.EventType.TOUCH_END)
+            return this._onRelease(event, 'touch', event.sequence);
+        else if (event.type === Clutter.EventType.TOUCH_UPDATE)
+            return this._onMotion(event, event.sequence);
+
+        return Clutter.EVENT_PROPAGATE;
+    }
+
+    vfunc_leave_event(event) {
+        // If we're dragging and go over the panel we still get a leave event
+        // for some reason, even though we have a grab. We don't want to switch
+        // the cursor when we're dragging.
+        if (!this._dragButton)
+            global.display.set_cursor(Meta.Cursor.DEFAULT);
+
+        return super.vfunc_leave_event(event);
+    }
+});
+
+var UIWindowSelectorLayout = GObject.registerClass(
+class UIWindowSelectorLayout extends Workspace.WorkspaceLayout {
+    _init(monitorIndex) {
+        super._init(null, monitorIndex, null);
+    }
+
+    vfunc_set_container(container) {
+        this._container = container;
+        this._syncWorkareaTracking();
+    }
+
+    vfunc_allocate(container, box) {
+        const containerBox = container.allocation;
+        const containerAllocationChanged =
+            this._lastBox === null || !this._lastBox.equal(containerBox);
+        this._lastBox = containerBox.copy();
+
+        let layoutChanged = false;
+        if (this._layout === null) {
+            this._layout = this._createBestLayout(this._workarea);
+            layoutChanged = true;
+        }
+
+        if (layoutChanged || containerAllocationChanged)
+            this._windowSlots = this._getWindowSlots(box.copy());
+
+        const childBox = new Clutter.ActorBox();
+
+        const nSlots = this._windowSlots.length;
+        for (let i = 0; i < nSlots; i++) {
+            let [x, y, width, height, child] = this._windowSlots[i];
+
+            childBox.set_origin(x, y);
+            childBox.set_size(width, height);
+
+            child.allocate(childBox);
+        }
+    }
+
+    addWindow(window) {
+        if (this._sortedWindows.includes(window))
+            return;
+
+        this._sortedWindows.push(window);
+
+        this._container.add_child(window);
+
+        this._layout = null;
+        this.layout_changed();
+    }
+
+    reset() {
+        for (const window of this._sortedWindows)
+            window.destroy();
+
+        this._sortedWindows = [];
+        this._windowSlots = [];
+        this._layout = null;
+    }
+
+    get windows() {
+        return this._sortedWindows;
+    }
+});
+
+var UIWindowSelectorWindow = GObject.registerClass(
+class UIWindowSelectorWindow extends St.Button {
+    _init(actor, params) {
+        super._init(params);
+
+        const window = actor.metaWindow;
+        this._boundingBox = window.get_frame_rect();
+        this._bufferRect = window.get_buffer_rect();
+        this._bufferScale = actor.get_resource_scale();
+        this._actor = new Clutter.Actor({
+            content: actor.paint_to_content(null),
+        });
+        this.add_child(this._actor);
+
+        this._border = new St.Bin({ style_class: 'screenshot-ui-window-selector-window-border' });
+        this._border.connect('style-changed', () => {
+            this._borderSize =
+                this._border.get_theme_node().get_border_width(St.Side.TOP);
+        });
+        this.add_child(this._border);
+
+        this._border.child = new St.Icon({
+            icon_name: 'object-select-symbolic',
+            style_class: 'screenshot-ui-window-selector-check',
+            x_align: Clutter.ActorAlign.CENTER,
+            y_align: Clutter.ActorAlign.CENTER,
+        });
+
+        this._cursor = null;
+        this._cursorPoint = { x: 0, y: 0 };
+        this._shouldShowCursor = window.has_pointer && window.has_pointer();
+
+        this.connect('destroy', this._onDestroy.bind(this));
+    }
+
+    get boundingBox() {
+        return this._boundingBox;
+    }
+
+    get windowCenter() {
+        const boundingBox = this.boundingBox;
+        return {
+            x: boundingBox.x + boundingBox.width / 2,
+            y: boundingBox.y + boundingBox.height / 2,
+        };
+    }
+
+    chromeHeights() {
+        return [0, 0];
+    }
+
+    chromeWidths() {
+        return [0, 0];
+    }
+
+    overlapHeights() {
+        return [0, 0];
+    }
+
+    get cursorPoint() {
+        return {
+            x: this._cursorPoint.x + this._boundingBox.x - this._bufferRect.x,
+            y: this._cursorPoint.y + this._boundingBox.y - this._bufferRect.y,
+        };
+    }
+
+    get bufferScale() {
+        return this._bufferScale;
+    }
+
+    get windowContent() {
+        return this._actor.content;
+    }
+
+    _onDestroy() {
+        this.remove_child(this._actor);
+        this._actor.destroy();
+        this._actor = null;
+        this.remove_child(this._border);
+        this._border.destroy();
+        this._border = null;
+
+        if (this._cursor) {
+            this.remove_child(this._cursor);
+            this._cursor.destroy();
+            this._cursor = null;
+        }
+    }
+
+    vfunc_allocate(box) {
+        this.set_allocation(box);
+
+        // Border goes around the window.
+        const borderBox = box.copy();
+        borderBox.set_origin(0, 0);
+        borderBox.x1 -= this._borderSize;
+        borderBox.y1 -= this._borderSize;
+        borderBox.x2 += this._borderSize;
+        borderBox.y2 += this._borderSize;
+        this._border.allocate(borderBox);
+
+        // box should contain this._boundingBox worth of window. Compute
+        // origin and size for the actor box to satisfy that.
+        const xScale = box.get_width() / this._boundingBox.width;
+        const yScale = box.get_height() / this._boundingBox.height;
+
+        const [, windowW, windowH] = this._actor.content.get_preferred_size();
+
+        const actorBox = new Clutter.ActorBox();
+        actorBox.set_origin(
+            (this._bufferRect.x - this._boundingBox.x) * xScale,
+            (this._bufferRect.y - this._boundingBox.y) * yScale
+        );
+        actorBox.set_size(
+            windowW * xScale / this._bufferScale,
+            windowH * yScale / this._bufferScale
+        );
+        this._actor.allocate(actorBox);
+
+        // Allocate the cursor if we have one.
+        if (!this._cursor)
+            return;
+
+        let [, , w, h] = this._cursor.get_preferred_size();
+        w *= this._cursorScale;
+        h *= this._cursorScale;
+
+        const cursorBox = new Clutter.ActorBox({
+            x1: this._cursorPoint.x,
+            y1: this._cursorPoint.y,
+            x2: this._cursorPoint.x + w,
+            y2: this._cursorPoint.y + h,
+        });
+        cursorBox.x1 *= xScale;
+        cursorBox.x2 *= xScale;
+        cursorBox.y1 *= yScale;
+        cursorBox.y2 *= yScale;
+
+        this._cursor.allocate(cursorBox);
+    }
+
+    addCursorTexture(content, point, scale) {
+        if (!this._shouldShowCursor)
+            return;
+
+        // Add the cursor.
+        this._cursor = new St.Widget({
+            content,
+            request_mode: Clutter.RequestMode.CONTENT_SIZE,
+        });
+
+        this._cursorPoint = {
+            x: point.x - this._boundingBox.x,
+            y: point.y - this._boundingBox.y,
+        };
+        this._cursorScale = scale;
+
+        this.insert_child_below(this._cursor, this._border);
+    }
+
+    getCursorTexture() {
+        return this._cursor?.content;
+    }
+
+    setCursorVisible(visible) {
+        if (!this._cursor)
+            return;
+
+        this._cursor.visible = visible;
+    }
+});
+
+var UIWindowSelector = GObject.registerClass(
+class UIWindowSelector extends St.Widget {
+    _init(monitorIndex, params) {
+        super._init(params);
+        super.layout_manager = new Clutter.BinLayout();
+
+        this._monitorIndex = monitorIndex;
+
+        this._layoutManager = new UIWindowSelectorLayout(monitorIndex);
+
+        // Window screenshots
+        this._container = new St.Widget({
+            style_class: 'screenshot-ui-window-selector-window-container',
+            x_expand: true,
+            y_expand: true,
+        });
+        this._container.layout_manager = this._layoutManager;
+        this.add_child(this._container);
+    }
+
+    capture() {
+        for (const actor of global.get_window_actors()) {
+            let window = actor.metaWindow;
+            let workspaceManager = global.workspace_manager;
+            let activeWorkspace = workspaceManager.get_active_workspace();
+            if (window.is_override_redirect() ||
+                !window.located_on_workspace(activeWorkspace) ||
+                window.get_monitor() !== this._monitorIndex)
+                continue;
+
+            const widget = new UIWindowSelectorWindow(
+                actor,
+                {
+                    style_class: 'screenshot-ui-window-selector-window',
+                    reactive: true,
+                    can_focus: true,
+                    toggle_mode: true,
+                }
+            );
+
+            widget.connect('key-focus-in', win => {
+                Main.screenshotUI.grab_key_focus();
+                win.checked = true;
+            });
+
+            if (window.has_focus()) {
+                widget.checked = true;
+                widget.toggle_mode = false;
+            }
+
+            this._layoutManager.addWindow(widget);
+        }
+    }
+
+    reset() {
+        this._layoutManager.reset();
+    }
+
+    windows() {
+        return this._layoutManager.windows;
+    }
+});
+
+const UIMode = {
+    SCREENSHOT: 0,
+    SCREENCAST: 1,
+};
+
+var ScreenshotUI = GObject.registerClass({
+    Properties: {
+        'screencast-in-progress': GObject.ParamSpec.boolean(
+            'screencast-in-progress',
+            'screencast-in-progress',
+            'screencast-in-progress',
+            GObject.ParamFlags.READABLE,
+            false),
+    },
+}, class ScreenshotUI extends St.Widget {
+    _init() {
+        super._init({
+            name: 'screenshot-ui',
+            constraints: new Clutter.BindConstraint({
+                source: global.stage,
+                coordinate: Clutter.BindCoordinate.ALL,
+            }),
+            layout_manager: new Clutter.BinLayout(),
+            opacity: 0,
+            visible: false,
+            reactive: true,
+        });
+
+        this._screencastInProgress = false;
+        this._screencastSupported = false;
+
+        this._screencastProxy = new ScreencastProxy(
+            Gio.DBus.session,
+            'org.gnome.Shell.Screencast',
+            '/org/gnome/Shell/Screencast',
+            (object, error) => {
+                if (error !== null) {
+                    log('Error connecting to the screencast service');
+                    return;
+                }
+
+                this._screencastSupported = this._screencastProxy.ScreencastSupported;
+                this._castButton.visible = this._screencastSupported;
+            });
+
+        this._lockdownSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.lockdown' });
+
+        // The full-screen screenshot has a separate container so that we can
+        // show it without the screenshot UI fade-in for a nicer animation.
+        this._stageScreenshotContainer = new St.Widget({ visible: false });
+        this._stageScreenshotContainer.add_constraint(new Clutter.BindConstraint({
+            source: global.stage,
+            coordinate: Clutter.BindCoordinate.ALL,
+        }));
+        Main.layoutManager.screenshotUIGroup.add_child(
+            this._stageScreenshotContainer);
+
+        this._screencastAreaIndicator = new UIAreaIndicator({
+            style_class: 'screenshot-ui-screencast-area-indicator',
+            visible: false,
+        });
+        this._screencastAreaIndicator.add_constraint(new Clutter.BindConstraint({
+            source: global.stage,
+            coordinate: Clutter.BindCoordinate.ALL,
+        }));
+        this.bind_property(
+            'screencast-in-progress',
+            this._screencastAreaIndicator,
+            'visible',
+            GObject.BindingFlags.DEFAULT);
+        // Add it directly to the stage so that it's above popup menus.
+        global.stage.add_child(this._screencastAreaIndicator);
+        Shell.util_set_hidden_from_pick(this._screencastAreaIndicator, true);
+
+        Main.layoutManager.screenshotUIGroup.add_child(this);
+
+        this._stageScreenshot = new St.Widget({ style_class: 'screenshot-ui-screen-screenshot' });
+        this._stageScreenshot.add_constraint(new Clutter.BindConstraint({
+            source: global.stage,
+            coordinate: Clutter.BindCoordinate.ALL,
+        }));
+        this._stageScreenshotContainer.add_child(this._stageScreenshot);
+
+        this._cursor = new St.Widget();
+        this._stageScreenshotContainer.add_child(this._cursor);
+
+        this._openingCoroutineInProgress = false;
+        this._grabHelper = new GrabHelper.GrabHelper(this, {
+            actionMode: Shell.ActionMode.POPUP,
+        });
+
+        this._areaSelector = new UIAreaSelector({
+            style_class: 'screenshot-ui-area-selector',
+            x_expand: true,
+            y_expand: true,
+            reactive: true,
+        });
+        this.add_child(this._areaSelector);
+
+        this._primaryMonitorBin = new St.Widget({ layout_manager: new Clutter.BinLayout() });
+        this._primaryMonitorBin.add_constraint(
+            new Layout.MonitorConstraint({ 'primary': true }));
+        this.add_child(this._primaryMonitorBin);
+
+        this._panel = new St.BoxLayout({
+            style_class: 'screenshot-ui-panel',
+            y_align: Clutter.ActorAlign.END,
+            y_expand: true,
+            vertical: true,
+            offscreen_redirect: Clutter.OffscreenRedirect.AUTOMATIC_FOR_OPACITY,
+        });
+        this._primaryMonitorBin.add_child(this._panel);
+
+        this._closeButton = new St.Button({
+            style_class: 'screenshot-ui-close-button',
+            icon_name: 'preview-close-symbolic',
+        });
+        this._closeButton.add_constraint(new Clutter.BindConstraint({
+            source: this._panel,
+            coordinate: Clutter.BindCoordinate.POSITION,
+        }));
+        this._closeButton.add_constraint(new Clutter.AlignConstraint({
+            source: this._panel,
+            align_axis: Clutter.AlignAxis.Y_AXIS,
+            pivot_point: new Graphene.Point({ x: -1, y: 0.5 }),
+            factor: 0,
+        }));
+        this._closeButtonXAlignConstraint = new Clutter.AlignConstraint({
+            source: this._panel,
+            align_axis: Clutter.AlignAxis.X_AXIS,
+            pivot_point: new Graphene.Point({ x: 0.5, y: -1 }),
+        });
+        this._closeButton.add_constraint(this._closeButtonXAlignConstraint);
+        this._closeButton.connect('clicked', () => this.close());
+        this._primaryMonitorBin.add_child(this._closeButton);
+
+        this._areaSelector.connect('drag-started', () => {
+            this._panel.ease({
+                opacity: 100,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            });
+            this._closeButton.ease({
+                opacity: 100,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            });
+        });
+        this._areaSelector.connect('drag-ended', () => {
+            this._panel.ease({
+                opacity: 255,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            });
+            this._closeButton.ease({
+                opacity: 255,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            });
+        });
+
+        this._typeButtonContainer = new St.Widget({
+            style_class: 'screenshot-ui-type-button-container',
+            layout_manager: new Clutter.BoxLayout({
+                spacing: 12,
+                homogeneous: true,
+            }),
+        });
+        this._panel.add_child(this._typeButtonContainer);
+
+        this._selectionButton = new IconLabelButton('screenshot-ui-area-symbolic', _('Selection'), {
+            style_class: 'screenshot-ui-type-button',
+            checked: true,
+            x_expand: true,
+        });
+        this._selectionButton.connect('notify::checked',
+            this._onSelectionButtonToggled.bind(this));
+        this._typeButtonContainer.add_child(this._selectionButton);
+
+        this.add_child(new Tooltip(this._selectionButton, {
+            text: _('Area Selection'),
+            style_class: 'screenshot-ui-tooltip',
+            visible: false,
+        }));
+
+        this._screenButton = new IconLabelButton('screenshot-ui-display-symbolic', _('Screen'), {
+            style_class: 'screenshot-ui-type-button',
+            toggle_mode: true,
+            x_expand: true,
+        });
+        this._screenButton.connect('notify::checked',
+            this._onScreenButtonToggled.bind(this));
+        this._typeButtonContainer.add_child(this._screenButton);
+
+        this.add_child(new Tooltip(this._screenButton, {
+            text: _('Screen Selection'),
+            style_class: 'screenshot-ui-tooltip',
+            visible: false,
+        }));
+
+        this._windowButton = new IconLabelButton('screenshot-ui-window-symbolic', _('Window'), {
+            style_class: 'screenshot-ui-type-button',
+            toggle_mode: true,
+            x_expand: true,
+        });
+        this._windowButton.connect('notify::checked',
+            this._onWindowButtonToggled.bind(this));
+        this._typeButtonContainer.add_child(this._windowButton);
+
+        this.add_child(new Tooltip(this._windowButton, {
+            text: _('Window Selection'),
+            style_class: 'screenshot-ui-tooltip',
+            visible: false,
+        }));
+
+        this._bottomRowContainer = new St.Widget({ layout_manager: new Clutter.BinLayout() });
+        this._panel.add_child(this._bottomRowContainer);
+
+        this._shotCastContainer = new St.BoxLayout({
+            style_class: 'screenshot-ui-shot-cast-container',
+            x_align: Clutter.ActorAlign.START,
+            x_expand: true,
+        });
+        this._bottomRowContainer.add_child(this._shotCastContainer);
+
+        this._shotButton = new St.Button({
+            style_class: 'screenshot-ui-shot-cast-button',
+            icon_name: 'camera-photo-symbolic',
+            checked: true,
+        });
+        this._shotButton.connect('notify::checked',
+            this._onShotButtonToggled.bind(this));
+        this._shotCastContainer.add_child(this._shotButton);
+
+        this._castButton = new St.Button({
+            style_class: 'screenshot-ui-shot-cast-button',
+            icon_name: 'camera-web-symbolic',
+            toggle_mode: true,
+            visible: false,
+        });
+        this._castButton.connect('notify::checked',
+            this._onCastButtonToggled.bind(this));
+        this._shotCastContainer.add_child(this._castButton);
+
+        this._shotButton.bind_property('checked', this._castButton, 'checked',
+            GObject.BindingFlags.BIDIRECTIONAL | GObject.BindingFlags.INVERT_BOOLEAN);
+
+        this._shotCastTooltip = new Tooltip(this._shotCastContainer, {
+            text: _('Screenshot / Screencast'),
+            style_class: 'screenshot-ui-tooltip',
+            visible: false,
+        });
+        const shotCastCallback = () => {
+            if (this._shotButton.hover || this._castButton.hover)
+                this._shotCastTooltip.open();
+            else
+                this._shotCastTooltip.close();
+        };
+        this._shotButton.connect('notify::hover', shotCastCallback);
+        this._castButton.connect('notify::hover', shotCastCallback);
+        this.add_child(this._shotCastTooltip);
+
+        this._captureButton = new St.Button({ style_class: 'screenshot-ui-capture-button' });
+        this._captureButton.set_child(new St.Widget({
+            style_class: 'screenshot-ui-capture-button-circle',
+        }));
+        this._captureButton.connect('clicked',
+            this._onCaptureButtonClicked.bind(this));
+        this._bottomRowContainer.add_child(this._captureButton);
+
+        this._showPointerButtonContainer = new St.BoxLayout({
+            x_align: Clutter.ActorAlign.END,
+            x_expand: true,
+        });
+        this._bottomRowContainer.add_child(this._showPointerButtonContainer);
+
+        this._showPointerButton = new St.Button({
+            style_class: 'screenshot-ui-show-pointer-button',
+            icon_name: 'screenshot-ui-show-pointer-symbolic',
+            toggle_mode: true,
+        });
+        this._showPointerButtonContainer.add_child(this._showPointerButton);
+
+        this.add_child(new Tooltip(this._showPointerButton, {
+            text: _('Show Pointer'),
+            style_class: 'screenshot-ui-tooltip',
+            visible: false,
+        }));
+
+        this._showPointerButton.connect('notify::checked', () => {
+            const state = this._showPointerButton.checked;
+            this._cursor.visible = state;
+
+            const windows =
+                this._windowSelectors.flatMap(selector => selector.windows());
+            for (const window of windows)
+                window.setCursorVisible(state);
+        });
+        this._cursor.visible = false;
+
+        this._monitorBins = [];
+        this._windowSelectors = [];
+        this._rebuildMonitorBins();
+
+        Main.layoutManager.connect('monitors-changed', () => {
+            // Nope, not dealing with monitor changes.
+            this.close(true);
+            this._rebuildMonitorBins();
+        });
+
+        const uiModes =
+            Shell.ActionMode.ALL & ~Shell.ActionMode.LOGIN_SCREEN;
+        const restrictedModes =
+            uiModes &
+            ~(Shell.ActionMode.LOCK_SCREEN | Shell.ActionMode.UNLOCK_SCREEN);
+
+        Main.wm.addKeybinding(
+            'show-screenshot-ui',
+            new Gio.Settings({ schema_id: 'org.gnome.shell.keybindings' }),
+            Meta.KeyBindingFlags.IGNORE_AUTOREPEAT,
+            uiModes,
+            showScreenshotUI
+        );
+
+        Main.wm.addKeybinding(
+            'show-screen-recording-ui',
+            new Gio.Settings({ schema_id: 'org.gnome.shell.keybindings' }),
+            Meta.KeyBindingFlags.IGNORE_AUTOREPEAT,
+            restrictedModes,
+            showScreenRecordingUI
+        );
+
+        Main.wm.addKeybinding(
+            'screenshot-window',
+            new Gio.Settings({ schema_id: 'org.gnome.shell.keybindings' }),
+            Meta.KeyBindingFlags.IGNORE_AUTOREPEAT | Meta.KeyBindingFlags.PER_WINDOW,
+            restrictedModes,
+            async (_display, window, _binding) => {
+                try {
+                    const actor = window.get_compositor_private();
+                    const content = actor.paint_to_content(null);
+                    const texture = content.get_texture();
+
+                    await captureScreenshot(texture, null, 1, null);
+                } catch (e) {
+                    logError(e, 'Error capturing screenshot');
+                }
+            }
+        );
+
+        Main.wm.addKeybinding(
+            'screenshot',
+            new Gio.Settings({ schema_id: 'org.gnome.shell.keybindings' }),
+            Meta.KeyBindingFlags.IGNORE_AUTOREPEAT,
+            uiModes,
+            async () => {
+                try {
+                    const shooter = new Shell.Screenshot();
+                    const [content] = await shooter.screenshot_stage_to_content();
+                    const texture = content.get_texture();
+
+                    await captureScreenshot(texture, null, 1, null);
+                } catch (e) {
+                    logError(e, 'Error capturing screenshot');
+                }
+            }
+        );
+
+        Main.sessionMode.connect('updated',
+            () => this._sessionUpdated());
+        this._sessionUpdated();
+    }
+
+    _sessionUpdated() {
+        this.close(true);
+        this._castButton.reactive = Main.sessionMode.allowScreencast;
+    }
+
+    _syncWindowButtonSensitivity() {
+        const windows =
+            this._windowSelectors.flatMap(selector => selector.windows());
+
+        this._windowButton.reactive =
+            Main.sessionMode.hasWindows &&
+            windows.length > 0 &&
+            !this._castButton.checked;
+    }
+
+    _refreshButtonLayout() {
+        const buttonLayout = Meta.prefs_get_button_layout();
+
+        this._closeButton.remove_style_class_name('left');
+        this._closeButton.remove_style_class_name('right');
+
+        if (buttonLayout.left_buttons.includes(Meta.ButtonFunction.CLOSE)) {
+            this._closeButton.add_style_class_name('left');
+            this._closeButtonXAlignConstraint.factor = 0;
+        } else {
+            this._closeButton.add_style_class_name('right');
+            this._closeButtonXAlignConstraint.factor = 1;
+        }
+    }
+
+    _rebuildMonitorBins() {
+        for (const bin of this._monitorBins)
+            bin.destroy();
+
+        this._monitorBins = [];
+        this._windowSelectors = [];
+        this._screenSelectors = [];
+
+        for (let i = 0; i < Main.layoutManager.monitors.length; i++) {
+            const bin = new St.Widget({
+                layout_manager: new Clutter.BinLayout(),
+            });
+            bin.add_constraint(new Layout.MonitorConstraint({ 'index': i }));
+            this.insert_child_below(bin, this._primaryMonitorBin);
+            this._monitorBins.push(bin);
+
+            const windowSelector = new UIWindowSelector(i, {
+                style_class: 'screenshot-ui-window-selector',
+                x_expand: true,
+                y_expand: true,
+                visible: this._windowButton.checked,
+            });
+            if (i === Main.layoutManager.primaryIndex)
+                windowSelector.add_style_pseudo_class('primary-monitor');
+
+            bin.add_child(windowSelector);
+            this._windowSelectors.push(windowSelector);
+
+            const screenSelector = new St.Button({
+                style_class: 'screenshot-ui-screen-selector',
+                x_expand: true,
+                y_expand: true,
+                visible: this._screenButton.checked,
+                reactive: true,
+                can_focus: true,
+                toggle_mode: true,
+            });
+            screenSelector.connect('key-focus-in', () => {
+                this.grab_key_focus();
+                screenSelector.checked = true;
+            });
+            bin.add_child(screenSelector);
+            this._screenSelectors.push(screenSelector);
+
+            screenSelector.connect('notify::checked', () => {
+                if (!screenSelector.checked)
+                    return;
+
+                screenSelector.toggle_mode = false;
+
+                for (const otherSelector of this._screenSelectors) {
+                    if (screenSelector === otherSelector)
+                        continue;
+
+                    otherSelector.toggle_mode = true;
+                    otherSelector.checked = false;
+                }
+            });
+        }
+
+        if (Main.layoutManager.primaryIndex !== -1)
+            this._screenSelectors[Main.layoutManager.primaryIndex].checked = true;
+    }
+
+    async open(mode = UIMode.SCREENSHOT) {
+        if (this._openingCoroutineInProgress)
+            return;
+
+        if (this._screencastInProgress)
+            return;
+
+        if (mode === UIMode.SCREENCAST && !this._screencastSupported)
+            return;
+
+        this._castButton.checked = mode === UIMode.SCREENCAST;
+
+        if (!this.visible) {
+            // Screenshot UI is opening from completely closed state
+            // (rather than opening back from in process of closing).
+            for (const selector of this._windowSelectors)
+                selector.capture();
+
+            const windows =
+                this._windowSelectors.flatMap(selector => selector.windows());
+            for (const window of windows) {
+                window.connect('notify::checked', () => {
+                    if (!window.checked)
+                        return;
+
+                    window.toggle_mode = false;
+
+                    for (const otherWindow of windows) {
+                        if (window === otherWindow)
+                            continue;
+
+                        otherWindow.toggle_mode = true;
+                        otherWindow.checked = false;
+                    }
+                });
+            }
+
+            this._syncWindowButtonSensitivity();
+            if (!this._windowButton.reactive)
+                this._selectionButton.checked = true;
+
+            this._shooter = new Shell.Screenshot();
+
+            this._openingCoroutineInProgress = true;
+            try {
+                const [content, scale, cursorContent, cursorPoint, cursorScale] =
+                    await this._shooter.screenshot_stage_to_content();
+                this._stageScreenshot.set_content(content);
+                this._scale = scale;
+
+                if (cursorContent !== null) {
+                    this._cursor.set_content(cursorContent);
+                    this._cursor.set_position(cursorPoint.x, cursorPoint.y);
+
+                    let [, w, h] = cursorContent.get_preferred_size();
+                    w *= cursorScale;
+                    h *= cursorScale;
+                    this._cursor.set_size(w, h);
+
+                    this._cursorScale = cursorScale;
+
+                    for (const window of windows) {
+                        window.addCursorTexture(cursorContent, cursorPoint, cursorScale);
+                        window.setCursorVisible(this._showPointerButton.checked);
+                    }
+                }
+
+                this._stageScreenshotContainer.show();
+            } catch (e) {
+                log(`Error capturing screenshot: ${e.message}`);
+            }
+            this._openingCoroutineInProgress = false;
+        }
+
+        // Get rid of any popup menus.
+        // We already have them captured on the screenshot anyway.
+        //
+        // This needs to happen before the grab below as closing menus will
+        // pop their grabs.
+        Main.layoutManager.emit('system-modal-opened');
+
+        const { screenshotUIGroup } = Main.layoutManager;
+        screenshotUIGroup.get_parent().set_child_above_sibling(
+            screenshotUIGroup, null);
+
+        const grabResult = this._grabHelper.grab({
+            actor: this,
+            onUngrab: () => this.close(),
+        });
+        if (!grabResult) {
+            this.close(true);
+            return;
+        }
+
+        this._refreshButtonLayout();
+
+        this.remove_all_transitions();
+        this.visible = true;
+        this.ease({
+            opacity: 255,
+            duration: 200,
+            mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            onComplete: () => {
+                this._stageScreenshotContainer.get_parent().remove_child(
+                    this._stageScreenshotContainer);
+                this.insert_child_at_index(this._stageScreenshotContainer, 0);
+            },
+        });
+    }
+
+    _finishClosing() {
+        this.hide();
+
+        this._shooter = null;
+
+        // Switch back to screenshot mode.
+        this._shotButton.checked = true;
+
+        this._stageScreenshotContainer.get_parent().remove_child(
+            this._stageScreenshotContainer);
+        Main.layoutManager.screenshotUIGroup.insert_child_at_index(
+            this._stageScreenshotContainer, 0);
+        this._stageScreenshotContainer.hide();
+
+        this._stageScreenshot.set_content(null);
+        this._cursor.set_content(null);
+
+        this._areaSelector.reset();
+        for (const selector of this._windowSelectors)
+            selector.reset();
+    }
+
+    close(instantly = false) {
+        this._grabHelper.ungrab();
+
+        if (instantly) {
+            this._finishClosing();
+            return;
+        }
+
+        this.remove_all_transitions();
+        this.ease({
+            opacity: 0,
+            duration: 200,
+            mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            onComplete: this._finishClosing.bind(this),
+        });
+    }
+
+    _onSelectionButtonToggled() {
+        if (this._selectionButton.checked) {
+            this._selectionButton.toggle_mode = false;
+            this._windowButton.checked = false;
+            this._screenButton.checked = false;
+
+            this._areaSelector.show();
+            this._areaSelector.remove_all_transitions();
+            this._areaSelector.reactive = true;
+            this._areaSelector.ease({
+                opacity: 255,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            });
+        } else {
+            this._selectionButton.toggle_mode = true;
+
+            this._areaSelector.stopDrag();
+            global.display.set_cursor(Meta.Cursor.DEFAULT);
+
+            this._areaSelector.remove_all_transitions();
+            this._areaSelector.reactive = false;
+            this._areaSelector.ease({
+                opacity: 0,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+                onComplete: () => this._areaSelector.hide(),
+            });
+        }
+    }
+
+    _onScreenButtonToggled() {
+        if (this._screenButton.checked) {
+            this._screenButton.toggle_mode = false;
+            this._selectionButton.checked = false;
+            this._windowButton.checked = false;
+
+            for (const selector of this._screenSelectors) {
+                selector.show();
+                selector.remove_all_transitions();
+                selector.ease({
+                    opacity: 255,
+                    duration: 200,
+                    mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+                });
+            }
+        } else {
+            this._screenButton.toggle_mode = true;
+
+            for (const selector of this._screenSelectors) {
+                selector.remove_all_transitions();
+                selector.ease({
+                    opacity: 0,
+                    duration: 200,
+                    mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+                    onComplete: () => selector.hide(),
+                });
+            }
+        }
+    }
+
+    _onWindowButtonToggled() {
+        if (this._windowButton.checked) {
+            this._windowButton.toggle_mode = false;
+            this._selectionButton.checked = false;
+            this._screenButton.checked = false;
+
+            for (const selector of this._windowSelectors) {
+                selector.show();
+                selector.remove_all_transitions();
+                selector.ease({
+                    opacity: 255,
+                    duration: 200,
+                    mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+                });
+            }
+        } else {
+            this._windowButton.toggle_mode = true;
+
+            for (const selector of this._windowSelectors) {
+                selector.remove_all_transitions();
+                selector.ease({
+                    opacity: 0,
+                    duration: 200,
+                    mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+                    onComplete: () => selector.hide(),
+                });
+            }
+        }
+    }
+
+    _onShotButtonToggled() {
+        if (this._shotButton.checked) {
+            this._shotButton.toggle_mode = false;
+
+            this._stageScreenshotContainer.show();
+            this._stageScreenshotContainer.remove_all_transitions();
+            this._stageScreenshotContainer.ease({
+                opacity: 255,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            });
+        } else {
+            this._shotButton.toggle_mode = true;
+        }
+    }
+
+    _onCastButtonToggled() {
+        if (this._castButton.checked) {
+            this._castButton.toggle_mode = false;
+
+            this._captureButton.add_style_pseudo_class('cast');
+
+            this._stageScreenshotContainer.remove_all_transitions();
+            this._stageScreenshotContainer.ease({
+                opacity: 0,
+                duration: 200,
+                mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+                onComplete: () => this._stageScreenshotContainer.hide(),
+            });
+
+            // Screen recording doesn't support window selection yet.
+            if (this._windowButton.checked)
+                this._selectionButton.checked = true;
+
+            this._windowButton.reactive = false;
+        } else {
+            this._castButton.toggle_mode = true;
+
+            this._captureButton.remove_style_pseudo_class('cast');
+
+            this._syncWindowButtonSensitivity();
+        }
+    }
+
+    _getSelectedGeometry(rescale) {
+        let x, y, w, h;
+
+        if (this._selectionButton.checked) {
+            [x, y, w, h] = this._areaSelector.getGeometry();
+        } else if (this._screenButton.checked) {
+            const index =
+                this._screenSelectors.findIndex(screen => screen.checked);
+            const monitor = Main.layoutManager.monitors[index];
+
+            x = monitor.x;
+            y = monitor.y;
+            w = monitor.width;
+            h = monitor.height;
+        }
+
+        if (rescale) {
+            x *= this._scale;
+            y *= this._scale;
+            w *= this._scale;
+            h *= this._scale;
+        }
+
+        return [x, y, w, h];
+    }
+
+    _onCaptureButtonClicked() {
+        if (this._shotButton.checked) {
+            this._saveScreenshot();
+            this.close();
+        } else {
+            // Screencast closes the UI on its own.
+            this._startScreencast();
+        }
+    }
+
+    _saveScreenshot() {
+        if (this._selectionButton.checked || this._screenButton.checked) {
+            const content = this._stageScreenshot.get_content();
+            if (!content)
+                return; // Failed to capture the screenshot for some reason.
+
+            const texture = content.get_texture();
+            const geometry = this._getSelectedGeometry(true);
+
+            let cursorTexture = this._cursor.content?.get_texture();
+            if (!this._cursor.visible)
+                cursorTexture = null;
+
+            captureScreenshot(
+                texture, geometry, this._scale,
+                {
+                    texture: cursorTexture ?? null,
+                    x: this._cursor.x * this._scale,
+                    y: this._cursor.y * this._scale,
+                    scale: this._cursorScale,
+                }
+            ).catch(e => logError(e, 'Error capturing screenshot'));
+        } else if (this._windowButton.checked) {
+            const window =
+                this._windowSelectors.flatMap(selector => selector.windows())
+                                     .find(win => win.checked);
+            if (!window)
+                return;
+
+            const content = window.windowContent;
+            if (!content)
+                return;
+
+            const texture = content.get_texture();
+
+            let cursorTexture = window.getCursorTexture()?.get_texture();
+            if (!this._cursor.visible)
+                cursorTexture = null;
+
+            captureScreenshot(
+                texture,
+                null,
+                window.bufferScale,
+                {
+                    texture: cursorTexture ?? null,
+                    x: window.cursorPoint.x * window.bufferScale,
+                    y: window.cursorPoint.y * window.bufferScale,
+                    scale: this._cursorScale,
+                }
+            ).catch(e => logError(e, 'Error capturing screenshot'));
+        }
+    }
+
+    async _startScreencast() {
+        if (this._windowButton.checked)
+            return; // TODO
+
+        const [x, y, w, h] = this._getSelectedGeometry(false);
+        const drawCursor = this._cursor.visible;
+
+        // Set up the screencast indicator rect.
+        if (this._selectionButton.checked) {
+            this._screencastAreaIndicator.setSelectionRect(
+                ...this._areaSelector.getGeometry());
+        } else if (this._screenButton.checked) {
+            const index =
+                this._screenSelectors.findIndex(screen => screen.checked);
+            const monitor = Main.layoutManager.monitors[index];
+
+            this._screencastAreaIndicator.setSelectionRect(
+                monitor.x, monitor.y, monitor.width, monitor.height);
+        }
+
+        // Close instantly so the fade-out doesn't get recorded.
+        this.close(true);
+
+        // This is a bit awkward because creating a proxy synchronously hangs Shell.
+        let method =
+            this._screencastProxy.ScreencastAsync.bind(this._screencastProxy);
+        if (w !== -1) {
+            method = this._screencastProxy.ScreencastAreaAsync.bind(
+                this._screencastProxy, x, y, w, h);
+        }
+
+        // Set this before calling the method as the screen recording indicator
+        // will check it before the success callback fires.
+        this._setScreencastInProgress(true);
+
+        try {
+            const [success, path] = await method(
+                GLib.build_filenamev([
+                    /* Translators: this is the folder where recorded
+                       screencasts are stored. */
+                    _('Screencasts'),
+                    /* Translators: this is a filename used for screencast
+                     * recording, where "%d" and "%t" date and time, e.g.
+                     * "Screencast from 07-17-2013 10:00:46 PM.webm" */
+                    /* xgettext:no-c-format */
+                    _('Screencast from %d %t.webm'),
+                ]),
+                {'draw-cursor': new GLib.Variant('b', drawCursor)});
+            if (!success)
+                throw new Error();
+            this._screencastPath = path;
+        } catch (error) {
+            this._setScreencastInProgress(false);
+            const {message} = error;
+            if (message)
+                log(`Error starting screencast: ${message}`);
+            else
+                log('Error starting screencast');
+        }
+    }
+
+    async stopScreencast() {
+        if (!this._screencastInProgress)
+            return;
+
+        // Set this before calling the method as the screen recording indicator
+        // will check it before the success callback fires.
+        this._setScreencastInProgress(false);
+
+        try {
+            const [success] = await this._screencastProxy.StopScreencastAsync();
+            if (!success)
+                throw new Error();
+        } catch (error) {
+            const {message} = error;
+            if (message)
+                log(`Error stopping screencast: ${message}`);
+            else
+                log('Error stopping screencast');
+            return;
+        }
+
+        // Show a notification.
+        const file = Gio.file_new_for_path(this._screencastPath);
+
+        const source = new MessageTray.Source(
+            // Translators: notification source name.
+            _('Screenshot'),
+            'screencast-recorded-symbolic'
+        );
+        const notification = new MessageTray.Notification(
+            source,
+            // Translators: notification title.
+            _('Screencast recorded'),
+            // Translators: notification body when a screencast was recorded.
+            _('Click here to view the video.')
+        );
+        // Translators: button on the screencast notification.
+        notification.addAction(_('Show in Files'), () => {
+            const app =
+                Gio.app_info_get_default_for_type('inode/directory', false);
+
+            if (app === null) {
+                // It may be null e.g. in a toolbox without nautilus.
+                log('Error showing in files: no default app set for inode/directory');
+                return;
+            }
+
+            app.launch([file], global.create_app_launch_context(0, -1));
+        });
+        notification.connect('activated', () => {
+            try {
+                Gio.app_info_launch_default_for_uri(
+                    file.get_uri(), global.create_app_launch_context(0, -1));
+            } catch (err) {
+                logError(err, 'Error opening screencast');
+            }
+        });
+        notification.setTransient(true);
+
+        Main.messageTray.add(source);
+        source.showNotification(notification);
+    }
+
+    get screencast_in_progress() {
+        if (!('_screencastInProgress' in this))
+            return false;
+
+        return this._screencastInProgress;
+    }
+
+    _setScreencastInProgress(inProgress) {
+        if (this._screencastInProgress === inProgress)
+            return;
+
+        this._screencastInProgress = inProgress;
+        this.notify('screencast-in-progress');
+    }
+
+    vfunc_key_press_event(event) {
+        const symbol = event.keyval;
+        if (symbol === Clutter.KEY_Return || symbol === Clutter.KEY_space ||
+            ((event.modifier_state & Clutter.ModifierType.CONTROL_MASK) &&
+             (symbol === Clutter.KEY_c || symbol === Clutter.KEY_C))) {
+            this._onCaptureButtonClicked();
+            return Clutter.EVENT_STOP;
+        }
+
+        if (symbol === Clutter.KEY_s || symbol === Clutter.KEY_S) {
+            this._selectionButton.checked = true;
+            return Clutter.EVENT_STOP;
+        }
+
+        if (symbol === Clutter.KEY_c || symbol === Clutter.KEY_C) {
+            this._screenButton.checked = true;
+            return Clutter.EVENT_STOP;
+        }
+
+        if (this._windowButton.reactive &&
+            (symbol === Clutter.KEY_w || symbol === Clutter.KEY_W)) {
+            this._windowButton.checked = true;
+            return Clutter.EVENT_STOP;
+        }
+
+        if (symbol === Clutter.KEY_p || symbol === Clutter.KEY_P) {
+            this._showPointerButton.checked = !this._showPointerButton.checked;
+            return Clutter.EVENT_STOP;
+        }
+
+        if (this._castButton.reactive &&
+            (symbol === Clutter.KEY_v || symbol === Clutter.KEY_V)) {
+            this._castButton.checked = !this._castButton.checked;
+            return Clutter.EVENT_STOP;
+        }
+
+        if (symbol === Clutter.KEY_Left || symbol === Clutter.KEY_Right ||
+            symbol === Clutter.KEY_Up || symbol === Clutter.KEY_Down) {
+            let direction;
+            if (symbol === Clutter.KEY_Left)
+                direction = St.DirectionType.LEFT;
+            else if (symbol === Clutter.KEY_Right)
+                direction = St.DirectionType.RIGHT;
+            else if (symbol === Clutter.KEY_Up)
+                direction = St.DirectionType.UP;
+            else if (symbol === Clutter.KEY_Down)
+                direction = St.DirectionType.DOWN;
+
+            if (this._windowButton.checked) {
+                const window =
+                    this._windowSelectors.flatMap(selector => selector.windows())
+                        .find(win => win.checked) ?? null;
+                this.navigate_focus(window, direction, false);
+            } else if (this._screenButton.checked) {
+                const screen =
+                    this._screenSelectors.find(selector => selector.checked) ?? null;
+                this.navigate_focus(screen, direction, false);
+            }
+
+            return Clutter.EVENT_STOP;
+        }
+
+        return super.vfunc_key_press_event(event);
+    }
+});
+
+/**
+ * Stores a PNG-encoded screenshot into the clipboard and a file, and shows a
+ * notification.
+ *
+ * @param {GLib.Bytes} bytes - The PNG-encoded screenshot.
+ * @param {GdkPixbuf.Pixbuf} pixbuf - The Pixbuf with the screenshot.
+ */
+function _storeScreenshot(bytes, pixbuf) {
+    // Store to the clipboard first in case storing to file fails.
+    const clipboard = St.Clipboard.get_default();
+    clipboard.set_content(St.ClipboardType.CLIPBOARD, 'image/png', bytes);
+
+    const time = GLib.DateTime.new_now_local();
+
+    // This will be set in the first save to disk branch and then accessed
+    // in the second save to disk branch, so we need to declare it outside.
+    let file;
+
+    // The function is declared here rather than inside the condition to
+    // satisfy eslint.
+
+    /**
+     * Returns a filename suffix with an increasingly large index.
+     *
+     * @returns {Generator<string|*, void, *>} suffix string
+     */
+    function* suffixes() {
+        yield '';
+
+        for (let i = 1; ; i++)
+            yield `-${i}`;
+    }
+
+    const lockdownSettings =
+        new Gio.Settings({ schema_id: 'org.gnome.desktop.lockdown' });
+    const disableSaveToDisk =
+        lockdownSettings.get_boolean('disable-save-to-disk');
+
+    if (!disableSaveToDisk) {
+        const dir = Gio.File.new_for_path(GLib.build_filenamev([
+            GLib.get_user_special_dir(GLib.UserDirectory.DIRECTORY_PICTURES) || GLib.get_home_dir(),
+            // Translators: name of the folder under ~/Pictures for screenshots.
+            _('Screenshots'),
+        ]));
+
+        try {
+            dir.make_directory_with_parents(null);
+        } catch (e) {
+            if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.EXISTS))
+                throw e;
+        }
+
+        const timestamp = time.format('%Y-%m-%d %H-%M-%S');
+        // Translators: this is the name of the file that the screenshot is
+        // saved to. The placeholder is a timestamp, e.g. "2017-05-21 12-24-03".
+        const name = _('Screenshot from %s').format(timestamp);
+
+        // If the target file already exists, try appending a suffix with an
+        // increasing number to it.
+        for (const suffix of suffixes()) {
+            file = Gio.File.new_for_path(GLib.build_filenamev([
+                dir.get_path(), `${name}${suffix}.png`,
+            ]));
+
+            try {
+                const stream = file.create(Gio.FileCreateFlags.NONE, null);
+                stream.write_bytes(bytes, null);
+                break;
+            } catch (e) {
+                if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.EXISTS))
+                    throw e;
+            }
+        }
+
+        // Add it to recent files.
+        Gtk.RecentManager.get_default().add_item(file.get_uri());
+    }
+
+    // Create a St.ImageContent icon for the notification. We want
+    // St.ImageContent specifically because it preserves the aspect ratio when
+    // shown in a notification.
+    const pixels = pixbuf.read_pixel_bytes();
+    const content =
+        St.ImageContent.new_with_preferred_size(pixbuf.width, pixbuf.height);
+    content.set_bytes(
+        pixels,
+        Cogl.PixelFormat.RGBA_8888,
+        pixbuf.width,
+        pixbuf.height,
+        pixbuf.rowstride
+    );
+
+    // Show a notification.
+    const source = new MessageTray.Source(
+        // Translators: notification source name.
+        _('Screenshot'),
+        'screenshot-recorded-symbolic'
+    );
+    const notification = new MessageTray.Notification(
+        source,
+        // Translators: notification title.
+        _('Screenshot captured'),
+        // Translators: notification body when a screenshot was captured.
+        _('You can paste the image from the clipboard.'),
+        { datetime: time, gicon: content }
+    );
+
+    if (!disableSaveToDisk) {
+        // Translators: button on the screenshot notification.
+        notification.addAction(_('Show in Files'), () => {
+            const app =
+                Gio.app_info_get_default_for_type('inode/directory', false);
+
+            if (app === null) {
+                // It may be null e.g. in a toolbox without nautilus.
+                log('Error showing in files: no default app set for inode/directory');
+                return;
+            }
+
+            app.launch([file], global.create_app_launch_context(0, -1));
+        });
+        notification.connect('activated', () => {
+            try {
+                Gio.app_info_launch_default_for_uri(
+                    file.get_uri(), global.create_app_launch_context(0, -1));
+            } catch (err) {
+                logError(err, 'Error opening screenshot');
+            }
+        });
+    }
+
+    notification.setTransient(true);
+    Main.messageTray.add(source);
+    source.showNotification(notification);
+}
+
+/**
+ * Captures a screenshot from a texture, given a region, scale and optional
+ * cursor data.
+ *
+ * @param {Cogl.Texture} texture - The texture to take the screenshot from.
+ * @param {number[4]} [geometry] - The region to use: x, y, width and height.
+ * @param {number} scale - The texture scale.
+ * @param {Object} [cursor] - Cursor data to include in the screenshot.
+ * @param {Cogl.Texture} cursor.texture - The cursor texture.
+ * @param {number} cursor.x - The cursor x coordinate.
+ * @param {number} cursor.y - The cursor y coordinate.
+ * @param {number} cursor.scale - The cursor texture scale.
+ */
+async function captureScreenshot(texture, geometry, scale, cursor) {
+    const stream = Gio.MemoryOutputStream.new_resizable();
+    const [x, y, w, h] = geometry ?? [0, 0, -1, -1];
+    if (cursor === null)
+        cursor = { texture: null, x: 0, y: 0, scale: 1 };
+
+    global.display.get_sound_player().play_from_theme(
+        'screen-capture', _('Screenshot taken'), null);
+
+    const pixbuf = await Shell.Screenshot.composite_to_stream(
+        texture,
+        x, y, w, h,
+        scale,
+        cursor.texture, cursor.x, cursor.y, cursor.scale,
+        stream
+    );
+
+    stream.close(null);
+    _storeScreenshot(stream.steal_as_bytes(), pixbuf);
+}
+
+/**
+ * Shows the screenshot UI.
+ */
+function showScreenshotUI() {
+    Main.screenshotUI.open().catch(err => {
+        logError(err, 'Error opening the screenshot UI');
+    });
+}
+
+/**
+ * Shows the screen recording UI.
+ */
+function showScreenRecordingUI() {
+    Main.screenshotUI.open(UIMode.SCREENCAST).catch(err => {
+        logError(err, 'Error opening the screenshot UI');
+    });
+}
+
+var ScreenshotService = class {
+    constructor() {
+        this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(ScreenshotIface, this);
+        this._dbusImpl.export(Gio.DBus.session, '/org/gnome/Shell/Screenshot');
+
+        this._screenShooter = new Map();
+        this._senderChecker = new DBusSenderChecker([
+            'org.gnome.SettingsDaemon.MediaKeys',
+            'org.freedesktop.impl.portal.desktop.gtk',
+            'org.freedesktop.impl.portal.desktop.gnome',
+            'org.gnome.Screenshot',
+        ]);
+
+        this._lockdownSettings = new Gio.Settings({ schema_id: 'org.gnome.desktop.lockdown' });
+
+        Gio.DBus.session.own_name('org.gnome.Shell.Screenshot', Gio.BusNameOwnerFlags.REPLACE, null, null);
+    }
+
+    async _createScreenshot(invocation, needsDisk = true, restrictCallers = true) {
+        let lockedDown = false;
+        if (needsDisk)
+            lockedDown = this._lockdownSettings.get_boolean('disable-save-to-disk');
+
+        let sender = invocation.get_sender();
+        if (this._screenShooter.has(sender)) {
+            invocation.return_error_literal(
+                Gio.IOErrorEnum, Gio.IOErrorEnum.BUSY,
+                'There is an ongoing operation for this sender');
+            return null;
+        } else if (lockedDown) {
+            invocation.return_error_literal(
+                Gio.IOErrorEnum, Gio.IOErrorEnum.PERMISSION_DENIED,
+                'Saving to disk is disabled');
+            return null;
+        } else if (restrictCallers) {
+            try {
+                await this._senderChecker.checkInvocation(invocation);
+            } catch (e) {
+                invocation.return_gerror(e);
+                return null;
+            }
+        }
+
+        let shooter = new Shell.Screenshot();
+        shooter._watchNameId =
+                        Gio.bus_watch_name(Gio.BusType.SESSION, sender, 0, null,
+                                           this._onNameVanished.bind(this));
+
+        this._screenShooter.set(sender, shooter);
+
+        return shooter;
+    }
+
+    _onNameVanished(connection, name) {
+        this._removeShooterForSender(name);
+    }
+
+    _removeShooterForSender(sender) {
+        let shooter = this._screenShooter.get(sender);
+        if (!shooter)
+            return;
+
+        Gio.bus_unwatch_name(shooter._watchNameId);
+        this._screenShooter.delete(sender);
+    }
+
+    _checkArea(x, y, width, height) {
+        return x >= 0 && y >= 0 &&
+               width > 0 && height > 0 &&
+               x + width <= global.screen_width &&
+               y + height <= global.screen_height;
+    }
+
+    *_resolveRelativeFilename(filename) {
+        filename = filename.replace(/\.png$/, '');
+
+        let path = [
+            GLib.get_user_special_dir(GLib.UserDirectory.DIRECTORY_PICTURES),
+            GLib.get_home_dir(),
+        ].find(p => p && GLib.file_test(p, GLib.FileTest.EXISTS));
+
+        if (!path)
+            return null;
+
+        yield Gio.File.new_for_path(
+            GLib.build_filenamev([path, `${filename}.png`]));
+
+        for (let idx = 1; ; idx++) {
+            yield Gio.File.new_for_path(
+                GLib.build_filenamev([path, `${filename}-${idx}.png`]));
+        }
+    }
+
+    _createStream(filename, invocation) {
+        if (filename == '')
+            return [Gio.MemoryOutputStream.new_resizable(), null];
+
+        if (GLib.path_is_absolute(filename)) {
+            try {
+                let file = Gio.File.new_for_path(filename);
+                let stream = file.replace(null, false, Gio.FileCreateFlags.NONE, null);
+                return [stream, file];
+            } catch (e) {
+                invocation.return_gerror(e);
+                this._removeShooterForSender(invocation.get_sender());
+                return [null, null];
+            }
+        }
+
+        let err;
+        for (let file of this._resolveRelativeFilename(filename)) {
+            try {
+                let stream = file.create(Gio.FileCreateFlags.NONE, null);
+                return [stream, file];
+            } catch (e) {
+                err = e;
+                if (!e.matches(Gio.IOErrorEnum, Gio.IOErrorEnum.EXISTS))
+                    break;
+            }
+        }
+
+        invocation.return_gerror(err);
+        this._removeShooterForSender(invocation.get_sender());
+        return [null, null];
+    }
+
+    _flashAsync(shooter) {
+        return new Promise((resolve, _reject) => {
+            shooter.connect('screenshot_taken', (s, area) => {
+                const flashspot = new Flashspot(area);
+                flashspot.fire(resolve);
+
+                global.display.get_sound_player().play_from_theme(
+                    'screen-capture', _('Screenshot taken'), null);
+            });
+        });
+    }
+
+    _onScreenshotComplete(stream, file, invocation) {
+        stream.close(null);
+
+        let filenameUsed = '';
+        if (file) {
+            filenameUsed = file.get_path();
+        } else {
+            let bytes = stream.steal_as_bytes();
+            let clipboard = St.Clipboard.get_default();
+            clipboard.set_content(St.ClipboardType.CLIPBOARD, 'image/png', bytes);
+        }
+
+        let retval = GLib.Variant.new('(bs)', [true, filenameUsed]);
+        invocation.return_value(retval);
+    }
+
+    _scaleArea(x, y, width, height) {
+        let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
+        x *= scaleFactor;
+        y *= scaleFactor;
+        width *= scaleFactor;
+        height *= scaleFactor;
+        return [x, y, width, height];
+    }
+
+    _unscaleArea(x, y, width, height) {
+        let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
+        x /= scaleFactor;
+        y /= scaleFactor;
+        width /= scaleFactor;
+        height /= scaleFactor;
+        return [x, y, width, height];
+    }
+
+    async ScreenshotAreaAsync(params, invocation) {
+        let [x, y, width, height, flash, filename] = params;
+        [x, y, width, height] = this._scaleArea(x, y, width, height);
+        if (!this._checkArea(x, y, width, height)) {
+            invocation.return_error_literal(Gio.IOErrorEnum,
+                                            Gio.IOErrorEnum.CANCELLED,
+                                            "Invalid params");
+            return;
+        }
+        let screenshot = await this._createScreenshot(invocation);
+        if (!screenshot)
+            return;
+
+        let [stream, file] = this._createStream(filename, invocation);
+        if (!stream)
+            return;
+
+        try {
+            await Promise.all([
+                flash ? this._flashAsync(screenshot) : null,
+                screenshot.screenshot_area(x, y, width, height, stream),
+            ]);
+            this._onScreenshotComplete(stream, file, invocation);
+        } catch (e) {
+            invocation.return_value(new GLib.Variant('(bs)', [false, '']));
+        } finally {
+            this._removeShooterForSender(invocation.get_sender());
+        }
+    }
+
+    async ScreenshotWindowAsync(params, invocation) {
+        let [includeFrame, includeCursor, flash, filename] = params;
+        let screenshot = await this._createScreenshot(invocation);
+        if (!screenshot)
+            return;
+
+        let [stream, file] = this._createStream(filename, invocation);
+        if (!stream)
+            return;
+
+        try {
+            await Promise.all([
+                flash ? this._flashAsync(screenshot) : null,
+                screenshot.screenshot_window(includeFrame, includeCursor, stream),
+            ]);
+            this._onScreenshotComplete(stream, file, invocation);
+        } catch (e) {
+            invocation.return_value(new GLib.Variant('(bs)', [false, '']));
+        } finally {
+            this._removeShooterForSender(invocation.get_sender());
+        }
+    }
+
+    async ScreenshotAsync(params, invocation) {
+        let [includeCursor, flash, filename] = params;
+        let screenshot = await this._createScreenshot(invocation);
+        if (!screenshot)
+            return;
+
+        let [stream, file] = this._createStream(filename, invocation);
+        if (!stream)
+            return;
+
+        try {
+            await Promise.all([
+                flash ? this._flashAsync(screenshot) : null,
+                screenshot.screenshot(includeCursor, stream),
+            ]);
+            this._onScreenshotComplete(stream, file, invocation);
+        } catch (e) {
+            invocation.return_value(new GLib.Variant('(bs)', [false, '']));
+        } finally {
+            this._removeShooterForSender(invocation.get_sender());
+        }
+    }
+
+    async SelectAreaAsync(params, invocation) {
+        try {
+            await this._senderChecker.checkInvocation(invocation);
+        } catch (e) {
+            invocation.return_gerror(e);
+            return;
+        }
+
+        let selectArea = new SelectArea();
+        try {
+            let areaRectangle = await selectArea.selectAsync();
+            let retRectangle = this._unscaleArea(
+                areaRectangle.x, areaRectangle.y,
+                areaRectangle.width, areaRectangle.height);
+            invocation.return_value(GLib.Variant.new('(iiii)', retRectangle));
+        } catch (e) {
+            invocation.return_error_literal(
+                Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED,
+                'Operation was cancelled');
+        }
+    }
+
+    async FlashAreaAsync(params, invocation) {
+        try {
+            await this._senderChecker.checkInvocation(invocation);
+        } catch (e) {
+            invocation.return_gerror(e);
+            return;
+        }
+
+        let [x, y, width, height] = params;
+        [x, y, width, height] = this._scaleArea(x, y, width, height);
+        if (!this._checkArea(x, y, width, height)) {
+            invocation.return_error_literal(Gio.IOErrorEnum,
+                                            Gio.IOErrorEnum.CANCELLED,
+                                            "Invalid params");
+            return;
+        }
+        let flashspot = new Flashspot({ x, y, width, height });
+        flashspot.fire();
+        invocation.return_value(null);
+    }
+
+    async PickColorAsync(params, invocation) {
+        const screenshot = await this._createScreenshot(invocation, false, false);
+        if (!screenshot)
+            return;
+
+        const pickPixel = new PickPixel(screenshot);
+        try {
+            const color = await pickPixel.pickAsync();
+            const { red, green, blue } = color;
+            const retval = GLib.Variant.new('(a{sv})', [{
+                color: GLib.Variant.new('(ddd)', [
+                    red / 255.0,
+                    green / 255.0,
+                    blue / 255.0,
+                ]),
+            }]);
+            invocation.return_value(retval);
+        } catch (e) {
+            invocation.return_error_literal(
+                Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED,
+                'Operation was cancelled');
+        } finally {
+            this._removeShooterForSender(invocation.get_sender());
+        }
+    }
+};
+
+var SelectArea = GObject.registerClass(
+class SelectArea extends St.Widget {
+    _init() {
+        this._startX = -1;
+        this._startY = -1;
+        this._lastX = 0;
+        this._lastY = 0;
+        this._result = null;
+
+        super._init({
+            visible: false,
+            reactive: true,
+            x: 0,
+            y: 0,
+        });
+        Main.uiGroup.add_actor(this);
+
+        this._grabHelper = new GrabHelper.GrabHelper(this);
+
+        const constraint = new Clutter.BindConstraint({
+            source: global.stage,
+            coordinate: Clutter.BindCoordinate.ALL,
+        });
+        this.add_constraint(constraint);
+
+        this._rubberband = new St.Widget({
+            style_class: 'select-area-rubberband',
+            visible: false,
+        });
+        this.add_actor(this._rubberband);
+    }
+
+    async selectAsync() {
+        global.display.set_cursor(Meta.Cursor.CROSSHAIR);
+        Main.uiGroup.set_child_above_sibling(this, null);
+        this.show();
+
+        try {
+            await this._grabHelper.grabAsync({ actor: this });
+        } finally {
+            global.display.set_cursor(Meta.Cursor.DEFAULT);
+
+            GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
+                this.destroy();
+                return GLib.SOURCE_REMOVE;
+            });
+        }
+
+        return this._result;
+    }
+
+    _getGeometry() {
+        return new Meta.Rectangle({
+            x: Math.min(this._startX, this._lastX),
+            y: Math.min(this._startY, this._lastY),
+            width: Math.abs(this._startX - this._lastX) + 1,
+            height: Math.abs(this._startY - this._lastY) + 1,
+        });
+    }
+
+    vfunc_motion_event(motionEvent) {
+        if (this._startX == -1 || this._startY == -1 || this._result)
+            return Clutter.EVENT_PROPAGATE;
+
+        [this._lastX, this._lastY] = [motionEvent.x, motionEvent.y];
+        this._lastX = Math.floor(this._lastX);
+        this._lastY = Math.floor(this._lastY);
+        let geometry = this._getGeometry();
+
+        this._rubberband.set_position(geometry.x, geometry.y);
+        this._rubberband.set_size(geometry.width, geometry.height);
+        this._rubberband.show();
+
+        return Clutter.EVENT_PROPAGATE;
+    }
+
+    vfunc_button_press_event(buttonEvent) {
+        if (this._result)
+            return Clutter.EVENT_PROPAGATE;
+
+        [this._startX, this._startY] = [buttonEvent.x, buttonEvent.y];
+        this._startX = Math.floor(this._startX);
+        this._startY = Math.floor(this._startY);
+        this._rubberband.set_position(this._startX, this._startY);
+
+        return Clutter.EVENT_PROPAGATE;
+    }
+
+    vfunc_button_release_event() {
+        if (this._startX === -1 || this._startY === -1 || this._result)
+            return Clutter.EVENT_PROPAGATE;
+
+        this._result = this._getGeometry();
+        this.ease({
+            opacity: 0,
+            duration: 200,
+            mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            onComplete: () => this._grabHelper.ungrab(),
+        });
+        return Clutter.EVENT_PROPAGATE;
+    }
+});
+
+var RecolorEffect = GObject.registerClass({
+    Properties: {
+        color: GObject.ParamSpec.boxed(
+            'color', 'color', 'replacement color',
+            GObject.ParamFlags.WRITABLE,
+            Clutter.Color.$gtype),
+        chroma: GObject.ParamSpec.boxed(
+            'chroma', 'chroma', 'color to replace',
+            GObject.ParamFlags.WRITABLE,
+            Clutter.Color.$gtype),
+        threshold: GObject.ParamSpec.float(
+            'threshold', 'threshold', 'threshold',
+            GObject.ParamFlags.WRITABLE,
+            0.0, 1.0, 0.0),
+        smoothing: GObject.ParamSpec.float(
+            'smoothing', 'smoothing', 'smoothing',
+            GObject.ParamFlags.WRITABLE,
+            0.0, 1.0, 0.0),
+    },
+}, class RecolorEffect extends Shell.GLSLEffect {
+    _init(params) {
+        this._color = new Clutter.Color();
+        this._chroma = new Clutter.Color();
+        this._threshold = 0;
+        this._smoothing = 0;
+
+        this._colorLocation = null;
+        this._chromaLocation = null;
+        this._thresholdLocation = null;
+        this._smoothingLocation = null;
+
+        super._init(params);
+
+        this._colorLocation = this.get_uniform_location('recolor_color');
+        this._chromaLocation = this.get_uniform_location('chroma_color');
+        this._thresholdLocation = this.get_uniform_location('threshold');
+        this._smoothingLocation = this.get_uniform_location('smoothing');
+
+        this._updateColorUniform(this._colorLocation, this._color);
+        this._updateColorUniform(this._chromaLocation, this._chroma);
+        this._updateFloatUniform(this._thresholdLocation, this._threshold);
+        this._updateFloatUniform(this._smoothingLocation, this._smoothing);
+    }
+
+    _updateColorUniform(location, color) {
+        if (!location)
+            return;
+
+        this.set_uniform_float(location,
+            3, [color.red / 255, color.green / 255, color.blue / 255]);
+        this.queue_repaint();
+    }
+
+    _updateFloatUniform(location, value) {
+        if (!location)
+            return;
+
+        this.set_uniform_float(location, 1, [value]);
+        this.queue_repaint();
+    }
+
+    set color(c) {
+        if (this._color.equal(c))
+            return;
+
+        this._color = c;
+        this.notify('color');
+
+        this._updateColorUniform(this._colorLocation, this._color);
+    }
+
+    set chroma(c) {
+        if (this._chroma.equal(c))
+            return;
+
+        this._chroma = c;
+        this.notify('chroma');
+
+        this._updateColorUniform(this._chromaLocation, this._chroma);
+    }
+
+    set threshold(value) {
+        if (this._threshold === value)
+            return;
+
+        this._threshold = value;
+        this.notify('threshold');
+
+        this._updateFloatUniform(this._thresholdLocation, this._threshold);
+    }
+
+    set smoothing(value) {
+        if (this._smoothing === value)
+            return;
+
+        this._smoothing = value;
+        this.notify('smoothing');
+
+        this._updateFloatUniform(this._smoothingLocation, this._smoothing);
+    }
+
+    vfunc_build_pipeline() {
+        // Conversion parameters from https://en.wikipedia.org/wiki/YCbCr
+        const decl = `
+            vec3 rgb2yCrCb(vec3 c) {                                \n
+                float y = 0.299 * c.r + 0.587 * c.g + 0.114 * c.b;  \n
+                float cr = 0.7133 * (c.r - y);                      \n
+                float cb = 0.5643 * (c.b - y);                      \n
+                return vec3(y, cr, cb);                             \n
+            }                                                       \n
+                                                                    \n
+            uniform vec3 chroma_color;                              \n
+            uniform vec3 recolor_color;                             \n
+            uniform float threshold;                                \n
+            uniform float smoothing;                                \n`;
+        const src = `
+            vec3 mask = rgb2yCrCb(chroma_color.rgb);                \n
+            vec3 yCrCb = rgb2yCrCb(cogl_color_out.rgb);             \n
+            float blend =                                           \n
+              smoothstep(threshold,                                 \n
+                         threshold + smoothing,                     \n
+                         distance(yCrCb.gb, mask.gb));              \n
+            cogl_color_out.rgb =                                    \n
+              mix(recolor_color, cogl_color_out.rgb, blend);        \n`;
+
+        this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, decl, src, false);
+    }
+});
+
+var PickPixel = GObject.registerClass(
+class PickPixel extends St.Widget {
+    _init(screenshot) {
+        super._init({ visible: false, reactive: true });
+
+        this._screenshot = screenshot;
+
+        this._result = null;
+        this._color = null;
+        this._inPick = false;
+
+        Main.uiGroup.add_actor(this);
+
+        this._grabHelper = new GrabHelper.GrabHelper(this);
+
+        const constraint = new Clutter.BindConstraint({
+            source: global.stage,
+            coordinate: Clutter.BindCoordinate.ALL,
+        });
+        this.add_constraint(constraint);
+
+        const action = new Clutter.ClickAction();
+        action.connect('clicked', async () => {
+            await this._pickColor(...action.get_coords());
+            this._result = this._color;
+            this._grabHelper.ungrab();
+        });
+        this.add_action(action);
+
+        this._recolorEffect = new RecolorEffect({
+            chroma: new Clutter.Color({
+                red: 80,
+                green: 219,
+                blue: 181,
+            }),
+            threshold: 0.04,
+            smoothing: 0.07,
+        });
+        this._previewCursor = new St.Icon({
+            icon_name: 'color-pick',
+            icon_size: Meta.prefs_get_cursor_size(),
+            effect: this._recolorEffect,
+            visible: false,
+        });
+        Main.uiGroup.add_actor(this._previewCursor);
+    }
+
+    async pickAsync() {
+        global.display.set_cursor(Meta.Cursor.BLANK);
+        Main.uiGroup.set_child_above_sibling(this, null);
+        this.show();
+
+        this._pickColor(...global.get_pointer());
+
+        try {
+            await this._grabHelper.grabAsync({ actor: this });
+        } finally {
+            global.display.set_cursor(Meta.Cursor.DEFAULT);
+            this._previewCursor.destroy();
+
+            GLib.idle_add(GLib.PRIORITY_DEFAULT, () => {
+                this.destroy();
+                return GLib.SOURCE_REMOVE;
+            });
+        }
+
+        return this._result;
+    }
+
+    async _pickColor(x, y) {
+        if (this._inPick)
+            return;
+
+        this._inPick = true;
+        this._previewCursor.set_position(x, y);
+        [this._color] = await this._screenshot.pick_color(x, y);
+        this._inPick = false;
+
+        if (!this._color)
+            return;
+
+        this._recolorEffect.color = this._color;
+        this._previewCursor.show();
+    }
+
+    vfunc_motion_event(motionEvent) {
+        const { x, y } = motionEvent;
+        this._pickColor(x, y);
+        return Clutter.EVENT_PROPAGATE;
+    }
+});
+
+var FLASHSPOT_ANIMATION_OUT_TIME = 500; // milliseconds
+
+var Flashspot = GObject.registerClass(
+class Flashspot extends Lightbox.Lightbox {
+    _init(area) {
+        super._init(Main.uiGroup, {
+            inhibitEvents: true,
+            width: area.width,
+            height: area.height,
+        });
+        this.style_class = 'flashspot';
+        this.set_position(area.x, area.y);
+    }
+
+    fire(doneCallback) {
+        this.set({ visible: true, opacity: 255 });
+        this.ease({
+            opacity: 0,
+            duration: FLASHSPOT_ANIMATION_OUT_TIME,
+            mode: Clutter.AnimationMode.EASE_OUT_QUAD,
+            onComplete: () => {
+                if (doneCallback)
+                    doneCallback();
+                this.destroy();
+            },
+        });
+    }
+});