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vlt Launches "reproduce": A New Tool Challenging the Limits of Package Provenance
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svg.draggable.js
Advanced tools
A plugin for the svgjs.com library to make elements draggable.
Svg.draggable.js is licensed under the terms of the MIT License.
Install the plugin:
bower install svg.draggable.js
Include this plugin after including the svg.js library in your html document.
<script src="svg.js"></script>
<script src="svg.draggable.js"></script>
To make an element draggable just call draggable()
in the element
var draw = SVG('canvas').size(400, 400)
var rect = draw.rect(100, 100)
rect.draggable()
Yes indeed, that's it! Now the rect
is draggable.
The Plugin fires 4 different events
You can bind/unbind listeners to this events:
// bind
rect.on('dragstart.namespace', function(event){
// event.detail.event hold the given data explained below
})
// unbind
rect.off('dragstart.namespace')
beforedrag
, dragstart
, dragmove
and dragend
gives you the event
and the handler
which calculates the drag.
Except for beforedrag
the events also give you:
detail.m
transformation matrix to calculate screen coords to coords in the elements userspacedetail.p
pageX and pageY transformed into the elements userspaceThe drag functionality can be limited within a given box. You can pass the the constraint values as an object:
rect.draggable({
minX: 10
, minY: 15
, maxX: 200
, maxY: 100
})
For more dynamic constraints a function can be passed as well:
rect.draggable(function(x, y) {
return { x: x < 1000, y: y < 300 }
})
Note that every constraint given is evaluated in the elements coordinate system and not in the screen-space
The draggable functionality can be removed calling draggable again with false as argument:
rect.draggable(false)
This plugin is viewBox aware but there is only one thing that you need to keep in mind. If you work with a viewBox on the parent element you need to set the width and height attributes to have the same aspect ratio. So let's say you are using viewbox='0 0 150 100'
you have to make sure the aspect ratio of width
and height
is the same:
var draw = SVG('paper').viewbox(0, 0, 150, 100).size(600, 400)
This module requires svg.js >= v2.0.1
FAQs
An extension for svg.js which allows to drag elements with your mouse
The npm package svg.draggable.js receives a total of 484,753 weekly downloads. As such, svg.draggable.js popularity was classified as popular.
We found that svg.draggable.js demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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