forked from joomla/joomla-cms
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request joomla#47 from astridx/astridx-plg_media-action_ro…
…tate/rotate.js Transform plg_media-action-rotate/rotate.js to ES6
- Loading branch information
Showing
2 changed files
with
160 additions
and
71 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,84 @@ | ||
/** | ||
* @copyright Copyright (C) 2005 - 2017 Open Source Matters, Inc. All rights reserved. | ||
* @license GNU General Public License version 2 or later; see LICENSE.txt | ||
*/ | ||
Joomla = window.Joomla || {}; | ||
|
||
Joomla.MediaManager = Joomla.MediaManager || {}; | ||
Joomla.MediaManager.Edit = Joomla.MediaManager.Edit || {}; | ||
|
||
(() => { | ||
'use strict'; | ||
|
||
// Update image | ||
const rotate = (angle) => { | ||
// The image element | ||
const image = document.getElementById('image-source'); | ||
|
||
// The canvas where we will resize the image | ||
const canvas = document.createElement('canvas'); | ||
|
||
// Pseudo rectangle calculation | ||
if ((angle >= 0 && angle < 45) | ||
|| (angle >= 135 && angle < 225) | ||
|| (angle >= 315 && angle <= 360)) { | ||
canvas.width = image.width; | ||
canvas.height = image.height; | ||
} else { | ||
// swap | ||
canvas.width = image.height; | ||
canvas.height = image.width; | ||
} | ||
const ctx = canvas.getContext('2d'); | ||
ctx.translate(canvas.width / 2, canvas.height / 2); | ||
ctx.rotate((angle * Math.PI) / 180); | ||
ctx.drawImage(image, -image.width / 2, -image.height / 2); | ||
|
||
// The format | ||
const format = Joomla.MediaManager.Edit.original.extension === 'jpg' ? 'jpeg' : 'jpg'; | ||
|
||
// The quality | ||
const quality = document.getElementById('jform_rotate_quality').value; | ||
|
||
// Creating the data from the canvas | ||
Joomla.MediaManager.Edit.current.contents = canvas.toDataURL(`image/${format}`, quality); | ||
|
||
// Updating the preview element | ||
const preview = document.getElementById('image-preview'); | ||
preview.width = canvas.width; | ||
preview.height = canvas.height; | ||
preview.src = Joomla.MediaManager.Edit.current.contents; | ||
|
||
// Update the width input box | ||
document.getElementById('jform_rotate_angle').value = angle; | ||
|
||
// Update the height input box | ||
document.getElementById('jform_rotate_a').value = angle; | ||
|
||
// Notify the app that a change has been made | ||
window.dispatchEvent(new Event('mediaManager.history.point')); | ||
}; | ||
|
||
const initRotate = () => { | ||
const funct = () => { | ||
// The listeners | ||
document.getElementById('jform_rotate_angle').addEventListener('change', (event) => { | ||
rotate(parseInt(event.target.value, 10)); | ||
}); | ||
document.getElementById('jform_rotate_a').addEventListener('input', (event) => { | ||
rotate(parseInt(event.target.value, 10)); | ||
}); | ||
}; | ||
setTimeout(funct, 1000); | ||
}; | ||
|
||
// Register the Events | ||
Joomla.MediaManager.Edit.rotate = { | ||
Activate(mediaData) { | ||
// Initialize | ||
initRotate(mediaData); | ||
}, | ||
Deactivate() { | ||
}, | ||
}; | ||
})(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters