File: web/bundles/extjs/resources/theme-bootstrap/theme/stylesheets/bootstrap/default/util/_resizable.scss

@mixin extjs-resizable {
    .#{$prefix}resizable-handle {
        position: absolute;
        z-index: 100;
        font-size: 1px;
        line-height: 6px;
        overflow: hidden;
        zoom: 1;
        @include opacity(0);
        background-color: #fff;
    }

    // Collapsed Components cannot be resized
    .#{$prefix}collapsed .#{$prefix}resizable-handle {
        display: none;
    }

    .#{$prefix}resizable-handle-east {
        width: 6px;
        height: 100%;
        
        right: 0;
        top: 0;
    }

    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-east {
            cursor: e-resize;
        }
    }

    .#{$prefix}resizable-handle-south {
        width: 100%;
        height: 6px;
        
        left: 0;
        bottom: 0;
    }
    
    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-south {
            cursor: s-resize;
        }
    }
    
    .#{$prefix}resizable-handle-west {
        width: 6px;
        height: 100%;
        
        left: 0;
        top: 0;
    }
    
    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-west {
            cursor: w-resize;
        }
    }

    .#{$prefix}resizable-handle-north {
        width: 100%;
        height: 6px;
        
        left: 0;
        top: 0;
    }
    
    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-north {
            cursor: n-resize;
        }
    }

    .#{$prefix}resizable-handle-southeast {
        width: 6px;
        height: 6px;
        
        right: 0;
        bottom: 0;
        
        z-index: 101;
    }
    
    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-southeast {
            cursor: se-resize;
        }
    }

    .#{$prefix}resizable-handle-northwest {
        width: 6px;
        height: 6px;
        
        left: 0;
        top: 0;
        
        z-index: 101;
    }
    
    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-northwest {
            cursor: nw-resize;
        }
    }

    .#{$prefix}resizable-handle-northeast {
        width: 6px;
        height: 6px;
        
        right: 0;
        top: 0;
        
        z-index: 101;
    }
    
    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-northeast {
            cursor: ne-resize;
        }
    }

    .#{$prefix}resizable-handle-southwest {
        width: 6px;
        height: 6px;
        
        left: 0;
        bottom: 0;
        
        z-index: 101;
    }
    
    .#{$prefix}resizable-over {
        .#{$prefix}resizable-handle-southwest {
            cursor: sw-resize;
        }
    }
    
    /*IE rounding error*/
    .#{$prefix}ie {
        .#{$prefix}resizable-handle-east {
            margin-right: -1px; /*IE rounding error*/
        }
        
        .#{$prefix}resizable-handle-south {
            margin-bottom: -1px;
        }
    }

    .#{$prefix}resizable-over .#{$prefix}resizable-handle, .#{$prefix}resizable-pinned .#{$prefix}resizable-handle{
        @include opacity(1);
    }

    .#{$prefix}window .#{$prefix}window-handle {
        @include opacity(0);
    }

    .#{$prefix}window-collapsed .#{$prefix}window-handle {
        display: none;
    }

    .#{$prefix}resizable-proxy {
        border: 1px dashed #3b5a82;
        position: absolute;
        left: 0;
        top: 0;
        overflow: hidden;
        z-index: 50000;
    }

    .#{$prefix}resizable-overlay {
        position: absolute;
        left: 0;
        top: 0;
        
        width: 100%;
        height: 100%;
        
        display: none;
        
        z-index: 200000;
        
        background-color: #fff;
            
        @include opacity(0);
    }
    
    .#{$prefix}resizable-over,
    .#{$prefix}resizable-pinned {
        .#{$prefix}resizable-handle-east,
        .#{$prefix}resizable-handle-west {
                background-position: left;
                background-image: theme-background-image($theme-name, 'sizer/e-handle.gif');
        }
        
        .#{$prefix}resizable-handle-south,
        .#{$prefix}resizable-handle-north {
            background-position: top;
            background-image: theme-background-image($theme-name, 'sizer/s-handle.gif');
        }
        
        .#{$prefix}resizable-handle-southeast {
            background-position: top left;
            background-image: theme-background-image($theme-name, 'sizer/se-handle.gif');
        }
        
        .#{$prefix}resizable-handle-northwest {
            background-position: bottom right;
            background-image: theme-background-image($theme-name, 'sizer/nw-handle.gif');
        }
        
        .#{$prefix}resizable-handle-northeast {
            background-position: bottom left;
            background-image: theme-background-image($theme-name, 'sizer/ne-handle.gif');
        }

        .#{$prefix}resizable-handle-southwest {
            background-position: top right;
            background-image: theme-background-image($theme-name, 'sizer/sw-handle.gif');
        }
    }
}