Method startResize

src/manager/msResizeManager.ts:161–172

(border: PortionBorder)

    }

    startResize(border: PortionBorder) {
        assert(this.resizeInProgress === null, 'Resize already in progress');
        this.resizeInProgress = {
            border: border,
            msWorkspace: Me.msWorkspaceManager!.getActiveMsWorkspace(),
        };

        global.stage.add_child(this.inputResizer);
        this.msWindowManager.msFocusManager.pushModal(this.inputResizer);

        Me.msThemeManager!.setCursor(Meta.Cursor.MOVE_OR_RESIZE_WINDOW);
    }

    updateResize() {
        assert(this.resizeInProgress !== null, 'No resize in progress');