react-file-viewer renders any file very small - javascript

As much as I have searched about file sizing for react-file-viewer I could not find anything.
I want to use the react-file-viewer to click on a filename hyperlink and open the file (image, document or excel sheeet) in a new page. The rendering works fine, except for the image/document sizing.
I have the following example:
import React from "react";
import FileViewer from "react-file-viewer";
import { Fragment } from "react";
import imGurPic from "./MainBody/imGurPic.ts";
const MainBody = () => {
const file =imGurPic;
const type = "jpeg";
return (
<Fragment>
<FileViewer fileType={type} filePath={file} />
</Fragment>
);
};
export default MainBody;
The imGurPic is an image I picked randomly from imGur because of its large size (3024x4032 pixels) (don't worry it is a cat image... link here... I converted into a base64 string that I use in the filePath prop of the FileViewer component. Ultimately, it will be a base64 string coming from a db as a byte array.
In the following sandbox I managed to create a demo, only to find out that it is WAY too small (72*96px). I do not really understand why it would take so little space. Also, any document or excelsheet I enter, the maximum height is 96px. How can I change it? It seems to inherit from a parent element but the Mainbody takes all the available space between header and footer.
Any help on this will be appreciated.
Here is the sandbox -->sandbox demo
And in case someone cannot open it, here is a screenshot -->

Had to figure this out as well. If you want your image to scale to fit your sizing requirements, just make height=100% in the surrounding div. E.g.
<div style={{ height: '100%' }}>
<ReactFileViewer />
</div>
If you don't want the image scaled at all, then it's a little trickier. I've had to resort to some messy CSS to override the hardwired width and height settings:
.pg-viewer-wrapper {
overflow-y: unset !important;
}
.photo-viewer-container {
width: unset !important;
height: unset !important;
}
.photo-viewer-container > img {
width: unset !important;
height: unset !important;
}
It would be great if this component had features like scaling (e.g. fit, fill, percentage) but I don't think the library is being maintained any more (looking at the old PRs that are still waiting), so would recommend forking and implementing a cleaner solution than what I have done.

Related

React SVGR renders svg incorrectly

I'm trying to render 2 SVG files on my react app.
Here:
But when importing it as a component to React:
import { ReactComponent as ClosedEnvelope } from "../../close.svg";
import { ReactComponent as OpenEnvelope } from "../../open.svg";
const Envelope = ({closed) => {
return (
<div>
{closed ? <ClosedEnvelope /> : <OpenEnvelope />}
</div>
);
};
It renders the SVG incorrectly:
As you can see the "arrow" on the bottom left side is overflowing.
Seems like an issue with the method I used, because loading the SVG as an image, does work.
What may the problem be?
Thanks in advance
Here are the links to the SVG files:
Close envelope Github
Open envelope Github
Well, Apparently the 2 SVG files, had the same classes and IDs, which caused them to change a little.
If you have the same issue,
Change all the classes in one SVG file.
Change all IDs, also in the CSS like clip-path: URL(#SOME_ID)
This worked for me.

styling changing on refresh in nextjs

I'm having this weird issue where my styling is not sticking. I have a NavBar set to be 20vh in height. I also have an image set to be 100% in width. However, when I refresh the page, the NavBar height shrinks and the image width increases significantly. I'm not sure what is causing this problem. I have pasted the relevant code below but you can also find the repo for the app at this link (dev branch).
const useStyles = makeStyles((theme) => ({
navBar: {
height: "20vh",
width: "100%",
},
}));
const NavBar = () => {
const classes = useStyles();
return <div className={classes.navBar}>NavBar</div>;
};
const useStyles = makeStyles((theme) => ({
introImg: {
width: "100%",
height: "auto",
},
}));
const Intro = () => {
const classes = useStyles();
return <img src={marco4sup} className={classes.introImg} />;
};
As you can see, the NavBar is definitely not 20vh and the image is expanding beyond 100% of the page width.
Alert: I will give a pull request on the repo on github so you can implement the code. Fast Refresh is a Next.js feature that gives you instantaneous feedback on edits made to your React components. Fast Refresh is enabled by default in all Next.js applications on 9.4 or newer. With Next.js Fast Refresh enabled, most edits should be visible within a second, without losing component state.
How It Works
If you edit a file that only exports React component(s), Fast Refresh will update the code only for that file, and re-render your component. You can edit anything in that file, including styles, rendering logic, event handlers, or effects.
If you edit a file with exports that aren't React components, Fast Refresh will re-run both that file, and the other files importing it. So if both Button.js and Modal.js import theme.js, editing theme.js will update both components.
Finally, if you edit a file that's imported by files outside of the React tree, Fast Refresh will fall back to doing a full reload. You might have a file which renders a React component but also exports a value that is imported by a non-React component. For example, maybe your component also exports a constant, and a non-React utility file imports it. In that case, consider migrating the constant to a separate file and importing it into both files. This will re-enable Fast Refresh to work. Other cases can usually be solved in a similar way.
Arrow functions aren't supported. Name your functional component.
export default function MyPage () {...
Without export defualt function MyPage() {... it won't use fast refresh therefore your code won't work, to implement it into your Code do the following(for code block1):
export default function UseStyles () {
navBar: {
height: "20vh",
width: "100%",
},
}));
const NavBar = () => {
const classes = useStyles();
return <div className={classes.navBar}>NavBar</div>;
};
Sorry if there are any grammatical errors my english isn't great.
And also if you want your navbar to be sticky set the position to sticky like the following:
position: sticky;

use JavaScript to toggle between different "crops" of a single large image

So I have been reading up on dozens upon dozens of Javascript zoom components, but none of them do what I am looking for, so I'm curious where to find such a component (if one exists) or how to code it myself.
The goal is to download a single large (1000x1000) image to the browser. Then within the browser, the image would have three presentation states within the same element container that the user can toggle between by clicking on some page element.
State 1 (default): See the entire image, but scaled down to fit within a 500x500 container (i.e. shrunk, but not cropped). For example (not to scale, but for comparison with other states):
State 2: See the middle 50%, centered, in the same container (i.e. actual size, and cropped). For example:
State 3: See the middle 25%, centered, in the same container (i.e. enlarged, and cropped quite a bit). For example:
And I would put the script that toggles between these three states in the click of some page element, such as a button.
Can any one offer a link to a component that does this, or suggestions on how the method that might accomplish it?
Thanks for any help!
I will go down on leveraging some CSS here.
For first case:
1) create a DIV which is 500x500, and set the background image to the file. Make sure you set background-size:contain property as well on the div.
2) For the second case I will remove the background-size:contain
3) The third case I will set the `background-size:200%;'
JSFiddle
If what you've described is really all you want to do it can be easily achieved with some CSS and a few lines of javascript:
var container = document.querySelector('.image-zoom'),
zoomBtn = document.getElementById('zoom-it'),
i = 0;
function clickHandler() {
if (i === 0) {
container.classList.add('zoom-2x');
i++;
} else if (i === 1) {
container.classList.add('zoom-4x');
i++;
} else {
container.classList.remove('zoom-2x');
container.classList.remove('zoom-4x');
i = 0;
}
}
zoomBtn.addEventListener('click', clickHandler);
.image-container, .image-zoom {
width: 250px;
height: 250px;
}
.image-container {
overflow: hidden;
}
.image-zoom.zoom-2x {
transform: scale(2);
}
.image-zoom.zoom-4x {
transform: scale(4);
}
<div class="image-container">
<div class="image-zoom" style="background-image:url(http://lorempixel.com/250/250)">
</div>
</div>
<button id="zoom-it">zoom image</button>
This assumes you know the dimensions of the image, which if you're using a CMS you can likely easily get and insert them inline on the .image-zoom and .image-containerelements.
jsFiddle
EDIT
jsFiddle 2
Modified the jsfiddle to be closer to what your question asked (initial state of the image is contained within the square and not cropped any amount.)

React: Can't get correct width of element after render

I'm trying to setup a Marquee in React if a piece of text is greater than its container but I can't get the correct width of the container, even after the component has rendered.
I read in another answer React “after render” code? that you have to use requestAnimationFrame which I'm trying and it's still not working.
If I log the width of the container it shows a width of 147px which is set using min-width in the stylesheet but the correct width should be 320px which is set using a media query when the screens min-width is 600px.
This is a child component, the parent is rendered inside an iFrame if it makes any difference and the iFrame's width is well over 600px.
The JS:
module.exports = React.createClass({
componentDidUpdate: function () {
// Setup marquee
this.initMarquee();
},
render: function () {
// Setup marquee
this.initMarquee();
var artistName = this.props.artist.artistName;
var trackName = this.props.track.trackName;
return (
<div className="MV-player-trackData no-select" ref="mvpTrackData">
<div className="MV-player-trackData-marquee-wrap" ref="mvpMarqueeWrap">
<div className="MV-player-trackData-marquee" ref="mvpMarquee">
<a className="MV-player-trackData-link no-select" href={this.props.storeUrl} target="_blank">
<span id="mvArtistName">{artistName}</span> – <span id="mvTrackName">{trackName}</span>
</a>
</div>
</div>
</div>
)
},
initMarquee: function () {
if ( typeof requestAnimationFrame !== 'undefined' ) {
//store a this ref, and
var self = this;
//wait for a paint to setup marquee
window.requestAnimationFrame(function() {
self.marquee();
});
}
else {
// Suport older browsers
window.setTimeout(this.marquee, 2000);
}
},
marquee: function () {
var marquee = React.findDOMNode(this.refs.mvpMarquee);
var marqueeWrap = React.findDOMNode(this.refs.mvpMarqueeWrap);
// If the marquee is greater than its container then animate it
if ( marquee.clientWidth > marqueeWrap.clientWidth ) {
marquee.className += ' is-animated';
}
else {
marquee.className = marquee.className.replace('is-animated', '');
}
}
});
The CSS:
.MV-player-trackData-marquee-wrap {
height: 20px;
line-height: 20px;
min-width: 147px;
overflow: hidden;
position: relative;
width: 100%;
#media only screen and (min-width : 600px) {
min-width: 320px;
}
}
I've tried a number of different solutions including laidout and react-component-width-mixin but neither of them work. I tried react component width mixin because in another part of my app I'm trying to get the value of window.innerWidth but that also returns 0 after rendering, unless I set a timeout for around 2 seconds, unfortunately though sometimes 2 seconds isn't long enough due to data loading and other callbacks so this can brake easily.
Any help is really appreciated. Thanks.
Update:
One of the answers correctly pointed out i should be calling this.initMarquee(); inside componentDidMount which I was doing, unfortunately I pasted the wrong code from when I was testing to see if it made a difference calling it inside render. The correct code looks like this:
componentDidMount: function () {
// Setup marquee
this.initMarquee();
},
Unfortunately this doesn't work either, I still receive the incorrect width for marqueeWrap.
Update: 24/06/2015
Just to clarify, this is the marquee effect I'm trying to achieve, only when the text is bigger than its container as it's pointless scrolling it when it is not bigger.
Also here is a link to a Github Issue from the React team speaking about why React renders before the browser paints. - So as that is the case, I want to know how do I reliably get the width of the element in question.
One possible problem that can occur is that your CSS has not loaded yet when componentDidMount fires. This can happen with webpack and including the css in your bundle that also contains your js even if you have included the css before your component in the project.
There are several issues, as you've pointed out, in dealing with the virtual DOM. You definitely don't want to be attempting to use jQuery to manipulate DOM nodes and React is likely to scream at your for attempting to.
There's a library called React-Context which would do exactly what you're asking. You would expose its api to your wrapper component and then be able to listen to events on components within the virtual dom.
This library is a little dusty, however it should work with the code sample you shared.
You should not call this.initMarquee(); in the render() method.
In general, you should not work with the DOM at all in the render() method.
Try to call this.initMarquee(); in the componentDidMount method.
(and I really don't understand the usage of requestAnimationFrame in this case)

TinyMCE width and height disobedient!

According to the (conflicting) documentation of TinyMCE, the editor takes on the size of the textarea (or other) element that it replaces. It also says that you can set the size of the editor by specifying { height: '123', width: '123' } in the init method.
I have tried BOTH and still get only one result - the editor resizes itself to (how it remembers is beyond me) what it was the last time a user resized it.
Its saves the last size because of the theme settings. You can turn it off by using the following
$('textarea.tinymce').tinymce({
theme_advanced_resizing: true,
theme_advanced_resizing_use_cookie : false,
I know all about this, it is very annoying.
Adding this to any loaded CSS file fixed the width for me (I just put it in the global css, not in any of the TinyMCE css files, I did not test with height):
.mceEditor > table {
width:/* my width */ !important;
}
This would affect all instances, which was fine in my case. You can target the toolbar itself with .mceToolbar
You kind of do want TinyMCE to resize the textarea, so it can be wide enough to fit all the toolbar icons.
Here is my fix.
It works also for multiple instances of TinyMCE editors (init() with 'height' property works only for the first instance, so it's a workaround to achieve a fixed or minimum height of the editor box).
.mceEditor td.mceIframeContainer iframe {
min-height: 350px !important;
}
.mceEditor table {
height: auto !important;
}
Although there are a lot of good suggestions here I found the answer by reading the question. There is NO problem with height or width so why all these work arounds with CSS or writing functions, the method in the docs works.
The original challenge was about resizing, the author never said the height or width didn't work, it just didn't do what he/she expected - it was only stated as quoted below:
"the editor resizes itself to (how it remembers is beyond me) what it was the last time a user resized it."
Saidul Islam answered the question correctly and to take it one step further Stuart went on to describe how to turn off the cookies. If you need to set the height and width do it when in init() and be done. You can read more here:
https://www.tinymce.com/docs/configure/editor-appearance/#min_height
Sizing the input area in both height and width works as outlined below.
tinymce.init({
selector: '.profileTextArea',
plugins : 'advlist autolink link image lists charmap print preview code',
min_height: 400
});
tinyMCE.init({
mode : "exact",
.....
mode : "exact" will disable the ability to resize grid by drag
Yes, this is very annoying. I wrote my own function to adjust the height to the given input. You may modify it to set your height/width as you wish:
resizeIframe: function(frameid) {
var frameid = frameid ? frameid : this.editor.id+'_ifr';
var currentfr=document.getElementById(frameid);
if (currentfr && !window.opera){
currentfr.style.display="block";
if (currentfr.contentDocument && currentfr.contentDocument.body.offsetHeight) { //ns6 syntax
currentfr.height = currentfr.contentDocument.body.offsetHeight + 26;
}
else if (currentfr.Document && currentfr.Document.body.scrollHeight) { //ie5+ syntax
currentfr.height = currentfr.Document.body.scrollHeight;
}
styles = currentfr.getAttribute('style').split(';');
for (var i=0; i<styles.length; i++) {
if ( styles[i].search('height:') ==1 ){
styles.splice(i,1);
break;
}
};
currentfr.setAttribute('style', styles.join(';'));
}
},
im setting width and height to editor area like this
<style>
#content{width: 620px; height: 500px;}
</style>
<textarea name="content" id="content" cols="50" rows="15"></textarea>
I noticed that a containing table was enforcing widths, and also the icon set are td's, so there's a minimum width they'll collapse down to, so if you have many icons in a single row - it could be messing all over your widths.
Sort of related SO question of mine, ended up being quite related to your problem: Able to float td elements consistently?
I found the TinyMCE text-area (called '.mceContentBody' in my theme) too small and awkwardly margined in the new post content area.
In my theme there's a css file called editor-style. I changed the width (to 98%) yet since TinyMCE uses cookies to remember the editor size, the CSS changes weren't sticking. After CLEARING MY BROWSER'S CACHE, the CSS width/margin changes took effect. Finally. Gah.
Add a 'body_id' using tinymce.init and then use that id in 'content_css' to give the editor the desired css behavior. Like so:
tinymce.init({
selector: "textarea",
content_css: '/css/app.css',
body_id: 'new-journal-editor'
});
And then in app.css:
#new-journal-editor {
height: 123px;
width: 123px;
}
I am facing the same problem but I end up doing this
#tinymce-textarea_ifr {
min-height: 500px !important;
}
.mce-tinymce {
width: 96% !important;
margin: 0 auto !important;
}
I find the best method to restrict the width tinyMCE 4+ textarea is to wrap the textarea in a new div or span tag. Then apply the width to that. This way you get use percentage widths instead of fixed px. if you want to adjust height edit the rows="15" value.
example:
<div style="width:90%!important;" ><textarea name="content"cols="100" rows="15" class="mceEditor" id="content"><?php echo $content;?></textarea></div>

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