Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Add component rotation property. #102

Merged
merged 1 commit into from
May 3, 2019
Merged

Add component rotation property. #102

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
39 changes: 37 additions & 2 deletions example/src/App.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ import React, { Component } from 'react';
import Pdf from 'react-pdf-js';

export default class App extends Component {
state = { page: 1 };
state = { page: 1, rotate: 0 };

onDocumentComplete = (pages) => {
this.setState({ page: 1, pages });
Expand Down Expand Up @@ -66,8 +66,43 @@ export default class App extends Component {
}
return (
<div>
<Pdf file="test.pdf" onDocumentComplete={this.onDocumentComplete} page={this.state.page} />
<div className="pdf-preview">
<Pdf
file="test.pdf"
onDocumentComplete={this.onDocumentComplete}
page={this.state.page}
scale={0.5}
rotate={this.state.rotate}
/>
</div>
{pagination}
<nav>
<span>rotate</span>
<button
onClick={
(e) => { this.setState({ rotate: 0 }); }
}
disabled={this.state.rotate === 0}
>0</button>
<button
onClick={
(e) => { this.setState({ rotate: 90 }); }
}
disabled={this.state.rotate === 90}
>90</button>
<button
onClick={
(e) => { this.setState({ rotate: 180 }); }
}
disabled={this.state.rotate === 180}
>180</button>
<button
onClick={
(e) => { this.setState({ rotate: 270 }); }
}
disabled={this.state.rotate === 270}
>270</button>
</nav>
</div>
);
}
Expand Down
5 changes: 5 additions & 0 deletions example/src/index.css
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,3 +3,8 @@ body {
padding: 0;
font-family: sans-serif;
}

.pdf-preview {
min-height: 400px;
min-height: 400px;
}
16 changes: 9 additions & 7 deletions src/index.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ export default class ReactPdfJs extends Component {
page: PropTypes.number,
onDocumentComplete: PropTypes.func,
scale: PropTypes.number,
rotate: PropTypes.oneOf([0, 90, 180, 270]),
cMapUrl: PropTypes.string,
cMapPacked: PropTypes.bool,
className: PropTypes.string,
Expand All @@ -23,6 +24,7 @@ export default class ReactPdfJs extends Component {
page: 1,
onDocumentComplete: null,
scale: 1,
rotate: 0,
cMapUrl: '../node_modules/pdfjs-dist/cmaps/',
cMapPacked: false,
}
Expand Down Expand Up @@ -50,19 +52,19 @@ export default class ReactPdfJs extends Component {
}

componentWillReceiveProps(newProps) {
const { page, scale } = this.props;
const { page, scale, rotate } = this.props;
const { pdf } = this.state;
if (newProps.page !== page) {
pdf.getPage(newProps.page).then(p => this.drawPDF(p));
}
if (newProps.scale !== scale) {
if (newProps.page !== page || newProps.scale !== scale || newProps.rotate !== rotate) {
pdf.getPage(newProps.page).then(p => this.drawPDF(p));
}
}

drawPDF = (page) => {
const { scale } = this.props;
const viewport = page.getViewport(scale);
const { scale, rotate } = this.props;
// Because this page's rotation option overwrites pdf default rotation value,
// calculating page rotation option value from pdf default and this component prop rotate.
const rotation = rotate === 0 ? page.rotate : page.rotate + rotate;
const viewport = page.getViewport(scale, rotation);
const { canvas } = this;
const canvasContext = canvas.getContext('2d');
canvas.height = viewport.height;
Expand Down