Preview - Viewers & Events
Preview - Viewers & Events
This page describes the preview experience for each file type. It also lists the events you can listen for by viewer type.
Text Viewer
The text viewer renders previews of text files. For code files like py
or
rb
, it uses highlight.js
to add
syntax highlighting.
Behavior
The text viewer displays the first 192 KB of text in the file. Additional text is truncated and a notification and download button are appended to the bottom of the preview.
Re-sizing the viewer window will reflow the text to fit the available space and the zoom in and out buttons will increase and decrease font size respectively.
This viewer supports printing and will attempt to print with appropriate syntax
highlighting when either print()
is invoked or the print button is pressed.
Note that printing large files may cause some browsers to freeze for a few
seconds.
Controls
- Zoom In
- Zoom Out
- Fullscreen: can be exited with the escape key
Supported File Extensions
as
, as3as
, asmas
, batas
, cas
, ccas
, cmakeas
, cppas
, csas
,
cssas
, cxxas
, diffas
, erbas
, groovyas
, has
, hamlas
, hhas
,
htmas
, htmlas
, javaas
, jsas
, lessas
, mas
, makeas
, mdas
, mlas
,
mmas
, phpas
, plas
, plistas
, propertiesas
, pyas
, rbas
, rstas
,
sassas
, scalaas
, scriptas
, scmas
, smlas
, sqlas
, shas
, vias
,
vimas
, webdocas
, xhtmlas
, yaml
,
Events
The text viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width | ||
zoom | The preview zooms in or out | 1. {number} zoom : new zoom value |
2. {boolean} canZoomIn : true if the viewer can zoom in more | ||
3. {boolean} canZoomOut : true if the viewer can zoom out more | ||
printsuccess | An attempt to print triggered successfully |
360 Video Viewer
The 360 video viewer renders a preview of a video stored as an equirectangular projection (often recorded with a 360 camera).
Behavior
This viewer gives you an interactive view of the 360 degree video.
Controls
- Change the view direction with the left mouse button (single touch on touch-enabled device).
VR button
When using a browser that supports WebVR and a suitable VR device is attached to your computer, a VR button will be available to allow toggling in and out of VR mode.
Limitations
Currently, this previewer requires that the file be named with a .360
preceding the file extension. This is so that Preview SDK knows to run this
viewer rather than the standard video preview.
Supported File Extensions
360.3g2
, 360.3gp
, 360.avi
, 360.m2v
, 360.m2ts
, 360.m4v
, 360.mkv
,
360.mov
, 360.mp4
, 360.mpeg
, 360.mpg
, 360.mts
, 360.qt
, 360.wmv
Events
The 360 video viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width |
SWF Viewer
The SWF viewer uses SWFObject
to embed
SWF files.
Behavior
If the user has the Adobe Flash Player plugin, SWFObject
will embed the SWF file
and allow the plugin to render relevant content.
Note that all network requests made by the flash content will be blocked due to security constraints, so any content that requires network connectivity will not be rendered.
Supported File Extensions
swf
Events
The SWF viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width |
Presentation viewer
The presentation viewer renders previews of PowerPoint files.
Behavior
The presentation viewer remembers which slide you were viewing upon closing the preview. The next time that file is opened, you will immediately be brought to that slide. Scrolling the mouse up and down, or swiping up and down on mobile will transition between slides. Zooming in or out will increase or decrease the size of the slide respectively. If the zoom level causes the content to overflow, scrolling the mouse will allow you to scroll around the slide. To return to normal scrolling behavior, the user must zoom out until the overflow is removed.
Controls
- Zoom In
- Zoom Out
- Set Page: either with the up and down arrows, or by clicking the page number and entering text
- Fullscreen: can be exited with the escape key
Supported File Extensions
ppt
, pptx
, odp
Options
Option | Type | Description |
---|---|---|
annotations | boolean | Optional. Whether annotations on content are shown. Defaults to false |
Events
The presentation viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. string error (optional): error message |
2. object file : current file | ||
3. object metrics : information from the logger | ||
4. object viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | object file |
reload | The preview reloads | |
resize | The preview resizes | 1. number height : window height |
2. number width : window width | ||
zoom | The preview zooms in or out | 1. number zoom : new zoom value |
2. boolean canZoomIn : true if the viewer can zoom in more | ||
3. boolean canZoomOut : true if the viewer can zoom out more | ||
pagerender | A page renders | number page number of rendered page |
pagefocus | A page is visible | number page number of focused page |
scrollstart | The viewer starts to scroll | 1. number scrollTop : number of pixels scrolled from top of viewport |
2. number scrollLeft : number of pixels scrolled from left of viewport | ||
scrollend | The viewer stops scrolling | 1. number scrollTop : number of pixels scrolled from top of viewport |
2. number scrollLeft : number of pixels scrolled from left of viewport |
MP4 Viewer
The MP4 viewer renders previews for video files.
Behavior
The MP4 viewer uses a black background to create a better viewing experience. Volume can be muted or unmuted by clicking the volume icon, or changed by dragging the volume scrubber. The position of the video can be changed by clicking or dragging the playback scrubber.
Controls
- Play/Pause
- Volume
- Settings
- Fullscreen (can be exited with the escape key)
Settings
Settings are available through the cog icon in the preview toolbar.
- Video speed values:
0.25
,0.5
, normal (1
),1.25
,1.5
,2.0
Supported File Extensions
3g2
, 3gp
, avi
, m2v
, m2ts
, m4v
, mkv
, mov
, mp4
, mpeg
, mpg
,
ogg
, mts
, qt
, wmv
Events
The MP4 viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. string error (optional): error message |
2. object file : current file | ||
3. object metrics : information from the logger | ||
4. object viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | object file |
reload | The preview reloads | |
resize | The preview resizes | 1. number height : window height |
2. number width : window width | ||
speedchange | Media speed changes | string playback speed |
play | The video plays | |
pause | The video pauses | |
seek | The video skips to a time | number time |
MP3 Viewer
The MP3 viewer displays previews for audio files.
Behavior
Volume can be muted or unmuted by clicking the volume icon, or changed by dragging the volume scrubber. The position of the audio can be changed by clicking or dragging the playback scrubber.
Controls
- Play/Pause
- Volume
- Settings
Settings
Settings are available through the cog icon in the preview toolbar.
- Audio Speed:
0.25
,0.5
, normal (1
),1.25
,1.5
,2.0
Supported File Extensions
aac
, aif
, aifc
, aiff
, amr
, au
, flac
, m4a
, mp3
, ra
, wav
, wma
Events
The MP3 viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. string error (optional): error message |
2. object file : current file | ||
3. object metrics : information from the logger | ||
4. object viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | object file |
reload | The preview reloads | |
resize | The preview resizes | 1. number height : window height |
2. number width : window width | ||
speedchange | Media speed changes | string playback speed |
play | The video plays | |
pause | The video pauses | |
seek | The video skips to a time | number time |
Office Viewer
The Office viewer renders previews of Microsoft Office documents by embedding an
<iframe>
of Microsoft's Office Online viewer.
Behavior
The Office viewer currently supports previews of Excel files using Microsoft Office Online from within the Box Web Application. Support for platform use cases and other Office file formats is in progress.
There are several limitations at the moment:
- File must be downloadable
- File size cannot be greater than 5MB
- File cannot be shared via a Box shared link with a password (shared links without passwords are okay)
Supported File Extensions
xlsx
Events
The Office viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width |
Markdown Viewer
The Markdown viewer uses
Remarkable
to parse markdown
files and highlight.js
to add
syntax highlighting to code blocks contained within.
Behavior
The Markdown viewer parses the first 192KB of raw markdown in the file and renders it using GitHub's Markdown style. Additional content is truncated and a notification along with a download button are appended to the bottom of the preview.
The viewer supports GitHub Flavored Markdown including tables, syntax highlighting, and automatic URL linking.
Re-sizing the viewer window will reflow the markdown to fit the available space.
Also, this viewer supports printing and will attempt to print the parsed
markdown and with syntax highlighting on code when either print()
is invoked
or the print button is pressed. Note that printing large files may cause some
browsers to freeze for a few seconds.
Controls
- Fullscreen (can be exited with the escape key)
Supported File Extensions
md
Events
The Markdown viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width | ||
printsuccess | An attempt to print triggered successfully |
Model3D
viewer
The Model3D
viewer renders previews of 3D model files and allows you to enable
different rendering modes to inspect various aspects of the model. for example
wireframe, texture coordinates, and more. Animation data is also supported for
files that contain it (for example box3d
, fbx
, dae
).
Behavior
The Model3D
viewer gives you an interactive view of the model. The left mouse
button allows you to orbit about the model (single touch on touch-enabled
device). Double-clicking somewhere on the model allows you to change orbit
focus.
Controls
- Zoom (change distance to the model) with the mouse wheel (or two-finger scroll on a touch-enabled device).
- Pan (lateral movement) with the right mouse button (or three-finger swipe on a touch-enabled device).
- Animation Selection: If the model that is being viewed contains animations, two animation buttons will be visible in the toolbar. The first allows you to play and pause the animation and the second allows the selection of the current animation.
- VR button: If using a browser that supports WebVR and a suitable VR device is attached to your computer, the VR button will allow toggling in and out of VR mode.
Settings
Settings are available through the cog icon in the preview toolbar.
- Render Mode: Lit, Unlit, Normal, Shape, UV Overlay
- Toggle Wireframe
- Toggle Skeleton
- Camera Projection: Perspective, Orthographic
- Render Quality: Auto, Full
- Rotate Model: X, Y, Z
Box3D
Packages
Preview gives users the ability to view a single file within Box so, by default, you can't view textures on your model. However, the Box web application gives users the ability to create a Box3D package that combines all dependent files into a single file that can be shared and previewed. To do this, right-click the model file within Box and choose "Create 3D Package". All referenced files found within Box will be included in the resulting package.
Supported File Extensions
box3d
, fbx
, dae
, 3ds
, obj
, stl
, ply
Events
The Model3D
viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width |
360 Image viewer
The 360 image viewer renders a preview of an image stored as an equirectangular projection (often taken with a 360 camera).
Behavior
This viewer gives you an interactive view of a 360 degree image. First, a low resolution version of the image is loaded to give a quick view before the full resolution image is finished loading. Clicking and dragging with the left mouse button will change the view direction (single touch and drag on touch-enabled device).
Controls
- Fullscreen (can be exited with the escape key)
- VR Button: When using a browser that supports WebVR and a suitable VR device is attached to your computer, a VR button will be available to allow toggling in and out of VR mode.
Limitations
Currently, this previewer requires that the file be named with a '.360' preceding the file extension. This is so that Preview SDK knows to run this viewer rather than the standard image viewer.
Supported File Extensions
360.jpg
, 360.jpeg
, 360.png
, 360.ai
, 360.bmp
, 360.dcm
, 360.eps
,
360.gif
, 360.ps
, 360.psd
, 360.svg
, 360.svs
, 360.tga
, 360.tif
,
360.tiff
Events
The 360 image viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width |
Image viewer
The image viewer renders previews of image files.
Behavior
Rotating the viewer will rotate the image 90 degrees clockwise. At the default zoom level, clicking on the image will zoom in once. When zoomed in, clicking on the document will return to the default zoom level. When zoomed out, clicking on the document will zoom in until the original zoom level is reached.
Controls
- Zoom In
- Zoom Out
- Rotate
- Fullscreen: can be exited with the escape key
Supported File Extensions
ai
, bmp
, dcm
, eps
, idml
, indt
, indd
, inx
, gif
, png
, ps
,
psd
, svs
, tga
Options
Option | Type | Description |
---|---|---|
annotations | boolean | Optional. Whether annotations on content are shown. Defaults to false |
Events
The image viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width | ||
zoom | The preview zooms in or out | 1. {number} zoom : new zoom value |
2. {boolean} canZoomIn : true if the viewer can zoom in more | ||
3. {boolean} canZoomOut : true if the viewer can zoom out more | ||
pan | The preview is panning | |
panstart | Panning starts | |
panend | Panning ends | |
rotate | The image rotates | |
printsuccess | An attempt to print triggered successfully |
Multi-image viewer
The multi-image viewer renders previews of multi-image files (tiff
, tif
).
Behavior
At the default zoom level, clicking on the image will zoom in once. When zoomed in, clicking on the document will return to the default zoom level. When zoomed out, clicking on the document will zoom in until the original zoom level is reached.
Controls
- Zoom In
- Zoom Out
- Fullscreen: can be exited with the escape key
- Set Page: either with the up and down arrows, or by clicking the page number and entering text
Supported File Extensions
tif
, tiff
Options
Option | Type | Description |
---|---|---|
annotations | boolean | Optional. Whether annotations on content are shown. Defaults to false |
Events
The image viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width | ||
zoom | The preview zooms in or out | 1. {number} zoom : new zoom value |
2. {boolean} canZoomIn : true if the viewer can zoom in more | ||
3. {boolean} canZoomOut : true if the viewer can zoom out more | ||
pagefocus | A page is visible | {number} page number of focused page |
pan | The preview is panning | |
panstart | Panning starts | |
panend | Panning ends |
Methods
The following methods are available for the multi-page image viewer.
Method Name | Explanation | Method Parameters |
---|---|---|
zoom | Zooms the image | {string} 'in', 'out', or 'reset' |
previousPage | Navigates to the previous page | |
nextPage | Navigates to the next page | |
setPage | Navigates to a given page | {number} page number |
toggleFullscreen | Toggles full screen mode |
Document viewer
The document viewer renders previews for a variety of document types.
Behavior
The document viewer remembers which page you were viewing upon closing the preview. The next time that file is opened, you will immediately be brought to that page. Resizing the viewer window will cause the document to resize.
Controls
- Zoom In
- Zoom Out
- Set Page: either with the up and down arrows, or by clicking the page number and entering text
- Fullscreen (can be exited with the escape key)
Supported File Extensions
as
, as3
, asm
, bat
, c
, cc
, cmake
, cpp
, cs
, css
, csv
, cxx
,
diff
, doc
, docx
, erb
, gdoc
, groovy
, gsheet
, h
, haml
, hh
,
htm
, html
, java
, js
, less
, log
, m
, make
, md
, ml
, mm
,
msg
, odp
, ods
, odt
, pdf
, php
, pl
, plist
, ppt
, pptx
,
properties
, py
, rb
, rst
, rtf
, sass
, scala
, scm
, script
, sh
,
sml
, sql
, tsv
, txt
, vi
, vim
, webdoc
, wpd
, xhtml
, xls
,
xlsm
, xlsx
, xml
, xsd
, xsl
, yaml
Options
Option | Type | Description |
---|---|---|
annotations | boolean | Optional. Whether annotations on content are shown. Defaults to false |
Events
The document viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width | ||
zoom | The preview zooms in or out | 1. {number} newScale : new zoom value |
2. {boolean} canZoomIn : true if the viewer can zoom in more | ||
3. {boolean} canZoomOut : true if the viewer can zoom out more | ||
pagerender | A page is rendered | {number} page number of rendered page |
pagefocus | A page is visible | {number} page number of focused page |
scrollstart | The viewer starts to scroll | 1. {number} scrollTop : number of pixels scrolled from top of viewport |
2. {number} scrollLeft : number of pixels scrolled from left of viewport | ||
scrollend | The viewer stops scrolling | 1. {number} scrollTop : number of pixels scrolled from top of viewport |
2. {number} scrollLeft : number of pixels scrolled from left of viewport | ||
printsuccess | An attempt to print triggered successfully | |
printsuccess | An attempt to print failed |
Annotations
Event Name | Explanation | Event Data |
---|---|---|
annotationdraw | Text is highlighted | |
annotationcommentpending | User hovers back into a dialog that has a pending comment | |
annotationcreate | Annotation is created | |
annotationcancel | An annotation was started but then abandoned before it was created | |
annotationdelete | Annotation with provided AnnotationID is deleted. If no ID is provided, deletes the first (and only remaining) annotation in the thread. |
<iframe>
viewer
The <iframe>
viewer embeds an frame to show content rendered from an external
source.
Behavior
The <iframe>
viewer is used for previews of Box Notes.
Box Notes has full-featured viewers within the main Box Web
Application, but these full viewers are not initialized when users navigate from
previews of other files that may be in the same directory as the Notes
files. In this situation, the <iframe>
viewer embeds an view-only render of
the Box Note file.
Supported File Extensions
boxnote
Events
The <iframe>
viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width |
DASH viewer
The DASH viewer renders previews for video files using Shaka Player
.
Behavior
The DASH viewer uses a black background to create a more native viewing experience. Video is streamed in chunks of bytes at an initial quality determined automatically. Volume can be muted or unmuted by clicking the volume icon, or changed by dragging the volume scrubber. The position of the video can be changed by clicking or dragging the playback scrubber.
Controls
- Play/Pause
- Volume
- Settings
- Fullscreen (can be exited with the escape key)
Settings
Settings are available through the cog icon in the preview toolbar.
- Video Speed:
0.25
,0.5
, normal (1
),1.25
,1.5
,2.0
- Video Quality:
480p
,1080p
,auto
Supported File Extensions
3g2
, 3gp
, avi
, m2v
, m2ts
, m4v
, mkv
, mov
, mp4
, mpeg
, mpg
,
ogg
, mts
, qt
, wmv
Events
The DASH viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width | ||
speedchange | The media speed changes | {string} playback speed |
qualitychange | The video quality changes | {string} media quality |
bandwidthhistory | Gives bandwidth history when the preview is destroyed | {array} bandwidth information |
switchhistory | Gives quality switching history when the preview is destroyed | {array} quality switch objects |
adaptation | Quality adapts to a change in bandwidth | {number} bandwidth |
play | The video plays | |
pause | The video pauses | |
seek | The video skips to a time | {number} time |
CSV viewer
The CSV viewer uses PapaParse
to parse
CSV and TSV files and React Virtualized
to display the parsed data
in a table.
Behavior
Resizing the viewer window will cause the table to resize, and the zoom in and out buttons will increase and decrease font size respectively. Currently, column and row sizes are fixed and overflowing text will be truncated.
This viewer does not support printing.
Controls
- Zoom In
- Zoom Out
- Fullscreen (can be exited with the escape key)
Supported File Extensions
csv
, tsv
Events
The CSV viewer triggers the following events.
Event Name | Explanation | Event Data |
---|---|---|
destroy | The preview is intentionally destroyed | |
load | The preview loads | 1. {string} error (optional): error message |
2. {object} file : current file | ||
3. {object} metrics : information from the logger | ||
4. {object} viewer : current viewer | ||
notification | A notification is displayed | |
navigate | The preview is shown for a given index | {object} file |
reload | The preview reloads | |
resize | The preview resizes | 1. {number} height : window height |
2. {number} width : window width | ||
zoom | The preview zooms in or out | 1. {number} zoom : new zoom value |
2. {boolean} canZoomIn : true if the viewer can zoom in more | ||
3. {boolean} canZoomOut : true if the viewer can zoom out more |