gridstack.js

gridstack.js is a jQuery plugin for widget layout. This is drag-and-drop multi-column grid. It allows you to build draggable responsive bootstrap v3 friendly layouts. It also works great with knockout.js and touch devices.

Inspired by gridster.js. Built with love.

Table of Contents generated with DocToc

Demo
Usage
Changes - v0.2.3 (development version) - v0.2.2 (2014-12-23) - v0.2.1 (2014-12-09) - v0.2.0 (2014-11-30) - v0.1.0 (2014-11-18)
License

Demo

Please visit http://troolee.github.io/gridstack.js/ for demo.

Usage

Requirements

underscore.js (>= 1.7.0)
jQuery (>= 1.11.0)
jQuery UI (>= 1.11.0). Minimum required components: Core, Widget, Mouse, Draggable, Resizable
(Optional) knockout.js (>= 3.2.0)
(Optional) jquery-ui-touch-punch for touch-based devices support

Basic usage

<div class="grid-stack">
    <div class="grid-stack-item" 
        data-gs-x="0" data-gs-y="0" 
        data-gs-width="4" data-gs-height="2">
            <div class="grid-stack-item-content"></div>
    </div>
    <div class="grid-stack-item" 
        data-gs-x="4" data-gs-y="0" 
        data-gs-width="4" data-gs-height="4">
            <div class="grid-stack-item-content"></div>
    </div>
</div>

<script type="text/javascript">
$(function () {
    var options = {
        cell_height: 80,
        vertical_margin: 10
    };
    $('.grid-stack').gridstack(options);
});
</script>

Options

always_show_resize_handle - if true the resizing handles are shown even the user is not hovering over the widget (default: false)
animate - turns animation on (default: false)
auto - if false it tells to do not initialize existing items (default: true)
cell_height - one cell height (default: 60)
handle - draggable handle selector (default: '.grid-stack-item-content')
height - maximum rows amount. Default is 0 which means no maximum rows
float - enable floating widgets (default: false)
item_class - widget class (default: 'grid-stack-item')
min_width - minimal width. If window width is less grid will be shown in one-column mode (default: 768)
placeholder_class - class for placeholder (default: 'grid-stack-placeholder')
vertical_margin - vertical gap size (default: 20)
width - amount of columns (default: 12)

Grid attributes

data-gs-animate - turns animation on
data-gs-width - amount of columns
data-gs-height - maximum rows amount. Default is 0 which means no maximum rows.

Item attributes

data-gs-x, data-gs-y - element position
data-gs-width, data-gs-height - element size
data-gs-max-width, data-gs-min-width, data-gs-max-height, data-gs-min-height - element constraints
data-gs-no-resize - disable element resizing
data-gs-no-move - disable element moving
data-gs-auto-position - tells to ignore data-gs-x and data-gs-y attributes and to place element to the first available position
data-gs-locked - the widget will be locked. It means another widgets couldn't move it during dragging or resizing. The widget is still can be dragged or resized. You need to add data-gs-no-resize and data-gs-no-move attributes to completely lock the widget.

Events

onchange(items)

Occurs when widgets change their position/size

var serialize_widget_map = function (items) {
    console.log(items);
};

$('.grid-stack').on('change', function (e, items) {
    serialize_widget_map(items);
});

ondragstart(event, ui)

$('.grid-stack').on('dragstart', function (event, ui) {
    var grid = this;
    var element = event.target;
});

ondragstop(event, ui)

$('.grid-stack').on('dragstop', function (event, ui) {
    var grid = this;
    var element = event.target;
});

onresizestart(event, ui)

$('.grid-stack').on('resizestart', function (event, ui) {
    var grid = this;
    var element = event.target;
});

onresizestop(event, ui)

$('.grid-stack').on('resizestop', function (event, ui) {
    var grid = this;
    var element = event.target;
});

API

add_widget(el, x, y, width, height, auto_position)

Creates new widget and returns it.

Parameters:

el - widget to add
x, y, width, height - widget position/dimensions (Optional)
auto_position - if true then x, y parameters will be ignored and widget will be places on the first available position

Widget will be always placed even if result height will be more then grid height. You need to use will_it_fit method before call add_widget for additional check.

$('.grid-stack').gridstack();

var grid = $('.grid-stack').data('gridstack');
grid.add_widget(el, 0, 0, 3, 2, true);

cell_height()

Gets current cell height.

cell_height(val)

Update current cell height. This method rebuilds an internal CSS stylesheet. Note: You can expect performance issues if call this method too often.

grid.cell_height(grid.cell_width() * 1.2);

cell_width()

Gets current cell width.

get_cell_from_pixel(position)

Get the position of the cell under a pixel on screen.

Parameters :

position - the position of the pixel to resolve in absolute coordinates, as an object with top and leftproperties

Returns an object with properties x and y i.e. the column and row in the grid.

locked(el, val)

Locks/unlocks widget.

el - widget to modify.
val - if true widget will be locked.

remove_widget(el)

Removes widget from the grid.

Parameters:

el - widget to remove

remove_all()

Removes all widgets from the grid.

resize(el, width, height)

Changes widget size

Parameters:

el - widget to resize
width, height - new dimensions. If value is null or undefined it will be ignored.

move(el, x, y)

Changes widget position

Parameters:

el - widget to move
x, y - new position. If value is null or undefined it will be ignored.

resizable(el, val)

Enables/Disables resizing.

el - widget to modify
val - if true widget will be resizable.

movable(el, val)

Enables/Disables moving.

el - widget to modify
val - if true widget will be draggable.

will_it_fit(x, y, width, height, auto_position)

Returns true if the height of the grid will be less the vertical constraint. Always returns true if grid doesn't have height constraint.

if (grid.will_it_fit(new_node.x, new_node.y, new_node.width, new_node.height, true)) {
    grid.add_widget(new_node.x, new_node.y, new_node.width, new_node.height, true);
}
else {
    alert('Not enough free space to place the widget');
}

Utils

GridStackUI.Utils.sort(nodes, dir, width)

Sorts array of nodes

nodes - array to sort
dir - 1 for asc, -1 for desc (optional)
width - width of the grid. If undefined the width will be calculated automatically (optional).

Touch devices support

Please use jQuery UI Touch Punch to make jQuery UI Draggable/Resizable working on touch-based devices.

<script src="underscore-min.js"></script>
<script src="jquery.min.js"></script>
<script src="jquery-ui.min.js"></script>
<script src="jquery.ui.touch-punch.min.js"></script>

<script src="gridstack.js"></script>

Also always_show_resize_handle option may be useful:

$(function () {
    var options = {
        always_show_resize_handle: /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)
    };
    $('.grid-stack').gridstack(options);
});

Use with knockout.js

ko.components.register('dashboard-grid', {
    viewModel: {
        createViewModel: function (controller, componentInfo) {
            var ViewModel = function (controller, componentInfo) {
                var grid = null;

                this.widgets = controller.widgets;

                this.afterAddWidget = function (items) {
                    _.each(items, function (item) {
                        item = $(item);
                        if (item.data('_gridstack_node') || item[0].nodeType != 1)
                            return;

                        if (grid == null) {
                            grid = $(componentInfo.element).find('.grid-stack').gridstack({
                                auto: false
                            }).data('gridstack');
                        }

                        grid.add_widget(item);
                        ko.utils.domNodeDisposal.addDisposeCallback(item[0], function () {
                            grid.remove_widget(item);
                        });
                    }, this);
                };
            };

            return new ViewModel(controller, componentInfo);
        }
    },
    template:
        [
            '<div class="grid-stack" data-bind="foreach: {data: widgets, afterRender: afterAddWidget}">',
            '   <div class="grid-stack-item" data-bind="attr: {\'data-gs-x\': $data.x, \'data-gs-y\': $data.y, \'data-gs-width\': $data.width, \'data-gs-height\': $data.height}">',
            '       <div class="grid-stack-item-content" data-bind="text: $index"></div>',
            '   </div>',
            '</div>'
        ].join('\n')
});

$(function () {
    var Controller = function (widgets) {
        this.widgets = ko.observableArray(widgets);
    };

    var widgets = [
        {x: 0, y: 0, width: 2, height: 2},
        {x: 2, y: 0, width: 4, height: 2},
        {x: 6, y: 0, width: 2, height: 4},
        {x: 1, y: 2, width: 4, height: 2}
    ];

    ko.applyBindings(new Controller(widgets));
});

and HTML:

<div data-bind="component: {name: 'dashboard-grid', params: $data}"></div>

See example.

Change grid width

To change grid width (columns count), to addition to width option, CSS rules for .grid-stack-item[data-gs-width="X"] and .grid-stack-item[data-gs-x="X"] have to be changed accordingly.

For instance for 3-column grid you need to rewrite CSS to be:

.grid-stack-item[data-gs-width="3"]  { width: 100% }
.grid-stack-item[data-gs-width="2"]  { width: 66.66666667% }
.grid-stack-item[data-gs-width="1"]  { width: 33.33333333% }

.grid-stack-item[data-gs-x="2"]  { left: 66.66666667% }
.grid-stack-item[data-gs-x="1"]  { left: 33.33333333% }

For 4-column grid it should be:

.grid-stack-item[data-gs-width="4"]  { width: 100% }
.grid-stack-item[data-gs-width="3"]  { width: 75% }
.grid-stack-item[data-gs-width="2"]  { width: 50% }
.grid-stack-item[data-gs-width="1"]  { width: 25% }

.grid-stack-item[data-gs-x="3"]  { left: 75% }
.grid-stack-item[data-gs-x="2"]  { left: 50% }
.grid-stack-item[data-gs-x="1"]  { left: 25% }

and so on.

Load grid from array

var serialization = [
    {x: 0, y: 0, width: 2, height: 2},
    {x: 3, y: 1, width: 1, height: 2},
    {x: 4, y: 1, width: 1, height: 1},
    {x: 2, y: 3, width: 3, height: 1},
    {x: 1, y: 4, width: 1, height: 1},
    {x: 1, y: 3, width: 1, height: 1},
    {x: 2, y: 4, width: 1, height: 1},
    {x: 2, y: 5, width: 1, height: 1}
];

serialization = GridStackUI.Utils.sort(serialization);

var grid = $('.grid-stack').data('gridstack');
grid.remove_all();

_.each(serialization, function (node) {
    grid.add_widget($('<div><div class="grid-stack-item-content" /><div/>'), 
        node.x, node.y, node.width, node.height);
});

Changes

v0.2.3 (development version)

add get_cell_from_pixel (thanks to @juchi)
AMD support
fix nodes sorting
improved touch devices support
add always_show_resize_handle option

v0.2.2 (2014-12-23)

fix grid initialization
add cell_height/cell_width API methods
fix boolean attributes (issue #31)

v0.2.1 (2014-12-09)

add widgets locking (issue #19)
add will_it_fit API method
fix auto-positioning (issue #20)
add animation (thanks to @ishields)
fix y coordinate calculation when dragging (issue #18)
fix remove_widget (issue #16)
minor fixes

v0.2.0 (2014-11-30)

add height option
auto-generate css rules (widgets height and top)
add GridStackUI.Utils.sort utility function
add remove_all API method
add resize and move API methods
add resizable and movable API methods
add data-gs-no-move attribute
add float option
fix default css rule for inner content
minor fixes

v0.1.0 (2014-11-18)

Very first version.

License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Name		Name	Last commit message	Last commit date
Latest commit History 135 Commits
demo		demo
dist		dist
src		src
LICENSE		LICENSE
README.md		README.md

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nitin41/gridstack.js

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gridstack.js

Demo

Usage

Requirements

Basic usage

Options

Grid attributes

Item attributes

Events

onchange(items)

ondragstart(event, ui)

ondragstop(event, ui)

onresizestart(event, ui)

onresizestop(event, ui)

API

add_widget(el, x, y, width, height, auto_position)

cell_height()

cell_height(val)

cell_width()

get_cell_from_pixel(position)

locked(el, val)

remove_widget(el)

remove_all()

resize(el, width, height)

move(el, x, y)

resizable(el, val)

movable(el, val)

will_it_fit(x, y, width, height, auto_position)

Utils

GridStackUI.Utils.sort(nodes, dir, width)

Touch devices support

Use with knockout.js

Change grid width

Load grid from array

Changes

v0.2.3 (development version)

v0.2.2 (2014-12-23)

v0.2.1 (2014-12-09)

v0.2.0 (2014-11-30)

v0.1.0 (2014-11-18)

License

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