⚠️ Attention! This repository will be maintained just in small iteration. The plugin is easy to use, but its customization can be troublesome. To improve plugin's flexibility, I made another repository PhotoViewer which is the enhanced version of Magnify.

Magnify

Magnify is a jQuery plugin to view images just like in windows.

[ website ]

Features

Modal draggable
Modal resizable
Modal maximizable
Image movable
Image zoomable
Image rotatable
Keyboard control
Fullscreen showing
Multiple instances
Browser support IE7+
RTL support

Installation

You can install the plugin via npm

$ npm install jquery.magnify --save

or via bower

$ bower install jquery.magnify --save

Usage

1.Include files

The usage of magnify is very simple.

<link href="/path/to/magnify.css" rel="stylesheet" />

<script src="/path/to/jquery.js"></script>
<script src="/path/to/jquery.magnify.js"></script>

The icons in magnify use svg default, you can customize them in options.

2.Html structure

The default structure as below:

<a data-magnify="gallery" href="big-1.jpg">
  <img src="small-1.jpg" />
</a>
<a data-magnify="gallery" href="big-2.jpg">
  <img src="small-2jpg" />
</a>
<a data-magnify="gallery" href="big-3.jpg">
  <img src="small-3.jpg" />
</a>

<img data-magnify="gallery" data-src="big-1.jpg" src="small-1.jpg" />
<img data-magnify="gallery" data-src="big-2.jpg" src="small-2.jpg" />
<img data-magnify="gallery" data-src="big-3.jpg" src="small-3.jpg" />

All structures above have optional attributes as below:

Add a data-src attribute to link big image if you do not want to use a <a> tag. If you use it in a <a> tag, it will override the image link in href attribute.
Add a data-caption attribute if you want to show a caption. If you are not using this attribute, it will show the image name in the url when you set the title option true.
Add a data-group attribute if you want to set the images in groups.

3.Call plugin

If you add a data-magnify attribute, you can write none of js.

Of course, you can use selector to call the plugin as following code:

$("[data-magnify=gallery]").magnify();

Options

draggable true

If ture, it allow modal dragging.
resizable true

If ture, it allow modal resizing.
movable true

If ture, it allow image moving.
keyboard true

If ture, it allow keyboard control. It is similar to Windows photo viewer.
- ← prev image
- → next image
- + zoom in image
- - zoom out image
- Ctrl + Alt + 0 image autual size
- Ctrl + , rotate image left
- Ctrl + . rotate image right
- Q close the Magnify modal
title true

If ture, it will show image title on header.
fixedModalSize false

If false, the modal init size will fit to image size.

If true, the modal init size will be set with modalWidth and modalHeight.
modalWidth 320

The modal min width.
modalHeight 320

The modal min height.
gapThreshold 0.02

There will have a gap if modal too big to beyond the browser.
ratioThreshold 0.01

Image zoom ratio threshold.
minRatio 0.05 (5%)

The min ratio to show image.
maxRatio 16 (1600%)

The max ratio to show image.
icons

You can customize the icons in following key.
- minimize svg
- maximize svg
- close svg
- zoomIn svg
- zoomOut svg
- prev svg
- next svg
- fullscreen svg
- actualSize svg
- rotateLeft svg
- rotateRight svg
headerToolbar ['maximize','close']

The buttons display in header toolbar.
footerToolbar ['zoomIn','zoomOut','prev','fullscreen','next','actualSize','rotateRight']

The buttons display in footer toolbar.
fixedContent true

If true, the content will be fixed.
i18n

You can customize the buttons title in following key.
- minimize minimize
- maximize maximize
- close close
- zoomIn zoom-in
- zoomOut zoom-out
- prev prev
- next next
- fullscreen fullscreen
- actualSize actual-size
- rotateLeft rotate-left
- rotateRight rotate-right
initMaximized false

If false, the modal size will be set of image size or what you set.

If true, the modal size will be set maximized when init.
multiInstances true

If true, it allow multiple instances.
initEvent click

The event to init plugin. Another value is dblclick.
initAnimation true

If false, it will not have animation at plugin's init.
fixedModalPos false

if true, the modal position will be fixed when change images.
zIndex 1090

The modal style of z-index, it is useful with multiple instances.
dragHandle

The handle of draggable.
progressiveLoading true

If true, the image will be rendered progressively.

customButtons {}

$("[data-magnify=gallery]").magnify({
  footerToolbar: [..."myCustomButton"],
  customButtons: {
    myCustomButton: {
      text: "custom!",
      title: "custom!",
      click: function (context, e) {
        alert("clicked the custom button!");
      },
    },
  },
});

Each customButton entry accepts the following properties:

text - the text to be display on the button itself.
title - the title to be display when hover the button.
click - a callback function that is called when the button is clicked.

Events

You can define callbacks in callbacks option. In each callback you can get the Magnify instance with this or context.

$("[data-magnify=gallery]").magnify({
  callbacks: {
    beforeOpen: function (context) {
      // Will fire before modal is opened
    },
    opened: function (context) {
      // Will fire after modal is opened
    },
    beforeClose: function (context) {
      // Will fire before modal is closed
    },
    closed: function (context) {
      // Will fire after modal is closed
    },
    beforeChange: function (context, index) {
      // Will fire before image is changed
      // The argument index is the current image index of image group
    },
    changed: function (context, index) {
      // Will fire after image is changed
      // The argument index is the next image index of image group
    },
  },
});