Viewer

A simple jQuery image viewing plugin.

Website
Viewer.js - the non-jQuery version of Viewer (recommended).

Features

Supports options
Supports methods
Supports events
Supports touch
Supports move
Supports zoom
Supports rotation
Supports scale (flip)
Supports keyboard
Cross-browser support

Main

dist/
├── viewer.css
├── viewer.min.css   (compressed)
├── viewer.js        (UMD)
├── viewer.min.js    (UMD, compressed)
├── viewer.common.js (CommonJS, default)
└── viewer.esm.js    (ES Module)

Getting started

Install

npm install imageviewer

Include files:

<script src="/path/to/jquery.js"></script><!-- jQuery is required -->
<link  href="/path/to/viewer.css" rel="stylesheet">
<script src="/path/to/viewer.js"></script>

Usage

Initialize with $.fn.viewer method.

<!-- a block container is required -->
<div>
  <img class="image" src="picture.jpg" alt="Picture">
</div>

<div>
  <ul class="images">
    <li><img src="picture.jpg" alt="Picture"></li>
    <li><img src="picture-2.jpg" alt="Picture 2"></li>
    <li><img src="picture-3.jpg" alt="Picture 3"></li>
  </ul>
</div>

// View one image
$('.image').viewer();

// View some images
$('.images').viewer();

Keyboard support

Only available in modal mode.

Esc: Exit full screen or stop play.
Space: Stop play.
←: View the previous image.
→: View the next image.
↑: Zoom in the image.
↓: Zoom out the image.
Ctrl + 0: Zoom out to initial size.
Ctrl + 1: Zoom in to natural size.

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Options

You may set viewer options with $().viewer(options). If you want to change the global default options, You may use $.fn.viewer.setDefaults(options).

inline

Type: Boolean
Default: false

Enable inline mode.

button

Type: Boolean
Default: true

Show the button on the top-right of the viewer.

navbar

Type: Boolean or Number
Default: true
Options:
- 0 or false: hide the navbar
- 1 or true: show the navbar
- 2: show the navbar only when screen width great then 768 pixels
- 3: show the navbar only when screen width great then 992 pixels
- 4: show the navbar only when screen width great then 1200 pixels

Specify the visibility of the navbar.

title

Type: Boolean or Number
Default: true
Options:
- 0 or false: hide the title
- 1 or true: show the title
- 2: show the title only when screen width great then 768 pixels
- 3: show the title only when screen width great then 992 pixels
- 4: show the title only when screen width great then 1200 pixels

Specify the visibility of the title (the current image's name and dimensions).

The name comes from the alt attribute of an image element or the image name parsed from URL.

toolbar

Type: Boolean or Number
Default: true
Options:
- 0 or false: hide the toolbar
- 1 or true: show the toolbar
- 2: show the toolbar only when screen width great then 768 pixels
- 3: show the toolbar only when screen width great then 992 pixels
- 4: show the toolbar only when screen width great then 1200 pixels

Specify the visibility of the toolbar.

tooltip

Type: Boolean
Default: true

Show the tooltip with image ratio (percentage) when zoom in or zoom out

movable

Type: Boolean
Default: true

Enable to move the image.

zoomable

Type: Boolean
Default: true

Enable to zoom the image.

rotatable

Type: Boolean
Default: true

Enable to rotate the image.

scalable

Type: Boolean
Default: true

Enable to scale the image.

transition

Type: Boolean
Default: true

Enable CSS3 Transition for some special elements.

fullscreen

Type: Boolean
Default: true

Enable to request full screen when play.

Requires the browser supports Full Screen API.

keyboard

Type: Boolean
Default: true

Enable keyboard support.

interval

Type: Number
Default: 5000

Define interval of each image when playing.

minWidth

Type: Number
Default: 200

Define the minimum width of the viewer.

Only available in inline mode (set the inline option to true).

minHeight

Type: Number
Default: 100

Define the minimum height of the viewer.

Only available in inline mode (set the inline option to true).

zoomRatio

Type: Number
Default: 0.1

Define the ratio when zoom the image by wheeling mouse.

minZoomRatio

Type: Number
Default: 0.01

Define the min ratio of the image when zoom out.

maxZoomRatio

Type: Number
Default: 100

Define the max ratio of the image when zoom in.

zIndex

Type: Number
Default: 2015

Define the CSS z-index value of viewer in modal mode.

zIndexInline

Type: Number
Default: 0

Define the CSS z-index value of viewer in inline mode.

url

Type: String or Function
Default: 'src'

Define where to get the original image URL for viewing.

If it is a string, it should be one of the attributes of each image element. If it is a function, it will be called on each image and should return a valid image URL.

ready

Type: Function
Default: null

A shortcut of the "ready" event.

show

Type: Function
Default: null

A shortcut of the "show" event.

shown

Type: Function
Default: null

A shortcut of the "shown" event.

hide

Type: Function
Default: null

A shortcut of the "hide" event.

hidden

Type: Function
Default: null

A shortcut of the "hidden" event.

view

Type: Function
Default: null

A shortcut of the "view" event.

viewed

Type: Function
Default: null

A shortcut of the "viewed" event.

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Methods

As there are some asynchronous processes when start the viewer, you should call a method only when it is available, see the following lifecycle:

$().viewer({
  built: function () {
    // 2 methods are available here: "show" and "destroy".
  },
  shown: function () {
    // 9 methods are available here: "hide", "view", "prev", "next", "play", "stop", "full", "exit" and "destroy".
  },
  viewed: function () {
    // All methods are available here except "show".
    $(this).viewer('rotate', 90).viewer('scale', -1, -1);
  }
}

show()

Show the viewer.

Only available in modal mode.

hide()

hide the viewer.

Only available in modal mode.

view([index])

index (optional):
- Type: Number
- Default: 0
- The index of the image for viewing

View one of the images with image's index.

$().viewer('view', 1); // View the second image

prev()

View the previous image.

next()

View the next image.

move(offsetX[, offsetY])

offsetX:
- Type: Number
- Moving size (px) in the horizontal direction
offsetY (optional):
- Type: Number
- Moving size (px) in the vertical direction.
- If not present, its default value is offsetX

Move the image with relative offsets.

$().viewer('move', 1);
$().viewer('move', -1, 0); // Move left
$().viewer('move', 1, 0);  // Move right
$().viewer('move', 0, -1); // Move up
$().viewer('move', 0, 1);  // Move down

moveTo(x[, y])

x:
- Type: Number
- The left value of the image
y (optional):
- Type: Number
- The top value of the image
- If not present, its default value is x.

Move the image to an absolute point.

zoom(ratio[, hasTooltip])

ratio:
- Type: Number
- Zoom in: requires a positive number (ratio > 0)
- Zoom out: requires a negative number (ratio < 0)
hasTooltip (optional):
- Type: Boolean
- Default: false
- Show tooltip

Zoom the image with a relative ratio

$().viewer('zoom', 0.1);
$().viewer('zoom', -0.1);

zoomTo(ratio[, hasTooltip])

ratio:
- Type: Number
- Requires a positive number (ratio > 0)
hasTooltip (optional):
- Type: Boolean
- Default: false
- Show tooltip

Zoom the image to an absolute ratio.

$().viewer('zoomTo', 0); // Zoom to zero size (0%)
$().viewer('zoomTo', 1); // Zoom to natural size (100%)

rotate(degree)

degree:
- Type: Number
- Rotate right: requires a positive number (degree > 0)
- Rotate left: requires a negative number (degree < 0)

Rotate the image with a relative degree.

Requires CSS3 2D Transforms support (IE 9+).

$().viewer('rotate', 90);
$().viewer('rotate', -90);

rotateTo(degree)

degree:
- Type: Number

Rotate the image to an absolute degree.

Requires CSS3 2D Transforms support (IE 9+).

$().viewer('rotateTo', 0); // Reset to zero degree
$().viewer('rotateTo', 360); // Rotate a full round

scale(scaleX[, scaleY])

scaleX:
- Type: Number
- Default: 1
- The scaling factor to apply on the abscissa of the image
- When equal to 1 it does nothing.
scaleY (optional):
- Type: Number
- The scaling factor to apply on the ordinate of the image
- If not present, its default value is scaleX.

Scale the image.

Requires CSS3 2D Transforms support (IE 9+).

$().viewer('scale', -1); // Flip both horizontal and vertical
$().viewer('scale', -1, 1); // Flip horizontal
$().viewer('scale', 1, -1); // Flip vertical

scaleX(scaleX)

scaleX:
- Type: Number
- Default: 1
- The scaling factor to apply on the abscissa of the image
- When equal to 1 it does nothing

Scale the abscissa of the image.

Requires CSS3 2D Transforms support (IE 9+).

$().viewer('scaleX', -1); // Flip horizontal

scaleY(scaleY)

scaleY:
- Type: Number
- Default: 1
- The scaling factor to apply on the ordinate of the image
- When equal to 1 it does nothing

Scale the ordinate of the image.

Requires CSS3 2D Transforms support (IE 9+).

$().viewer('scaleY', -1); // Flip vertical

play()

Play the images.

stop()

Stop play.

full()

Enter modal mode.

Only available in inline mode.

exit()

Exit modal mode.

Only available in inline mode.

tooltip()

Show the current ratio of the image with percentage.

Requires the tooltip option set to true.

toggle()

Toggle the image size between its natural size and initial size.

reset()

Reset the image to its initial state.

update()

Update the viewer when images changed.

If you load images dynamically, you can use this method to add the new images to the viewer instance.

destroy()

Destroy the viewer and remove the instance.

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Events

ready

This event fires when a viewer instance is ready for viewing.

In modal mode, this event will not be triggered until you click on one of the images.

show

This event fires when the viewer modal starts to show.

Only available in modal mode.

shown

This event fires when the viewer modal has shown.

Only available in modal mode.

hide

This event fires when the viewer modal starts to hide.

Only available in modal mode.

hidden

This event fires when the viewer modal has hidden.

Only available in modal mode.

view

This event fires when a viewer starts to show (view) an image.

viewed

This event fires when a viewer has shown (viewed) an image.

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No conflict

If you have to use other plugin with the same namespace, just call the $.fn.viewer.noConflict method to revert to it.

<script src="other-plugin.js"></script>
<script src="viewer.js"></script>
<script>
  $.fn.viewer.noConflict();
  // Code that uses other plugin's "$().viewer" can follow here.
</script>

Contributing

Please read through our contributing guidelines.

Browser support

Chrome (latest)
Firefox (latest)
Safari (latest)
Opera (latest)
Edge (latest)
Internet Explorer 8+

As a jQuery plugin, you also need to see the jQuery Browser Support.

Versioning

Maintained under the Semantic Versioning guidelines.

License

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Name		Name	Last commit message	Last commit date
Latest commit History 122 Commits
dist		dist
docs		docs
src		src
.babelrc		.babelrc
.editorconfig		.editorconfig
.eslintrc		.eslintrc
.gitattributes		.gitattributes
.gitignore		.gitignore
CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
README.md		README.md
package-lock.json		package-lock.json
package.json		package.json
postcss.config.js		postcss.config.js
rollup.config.js		rollup.config.js

License

TerminusHQ/viewer

Folders and files

Latest commit

History

Repository files navigation

Viewer

Table of contents

Features

Main

Getting started

Install

Usage

Keyboard support

Options

inline

button

navbar

title

toolbar

tooltip

movable

zoomable

rotatable

scalable

transition

fullscreen

keyboard

interval

minWidth

minHeight

zoomRatio

minZoomRatio

maxZoomRatio

zIndex

zIndexInline

url

ready

show

shown

hide

hidden

view

viewed

Methods

show()

hide()

view([index])

prev()

next()

move(offsetX[, offsetY])

moveTo(x[, y])

zoom(ratio[, hasTooltip])

zoomTo(ratio[, hasTooltip])

rotate(degree)

rotateTo(degree)

scale(scaleX[, scaleY])

scaleX(scaleX)

scaleY(scaleY)

play()

stop()

full()

exit()

tooltip()

toggle()

reset()

update()

destroy()

Events

ready

show

shown

hide

hidden

view

viewed

No conflict

Contributing

Browser support

Versioning

Packages