42 lines
1.6 KiB
Python
42 lines
1.6 KiB
Python
"""
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Provides a django form widget to handle a signature capture field with
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with jSignature jQuery plugin
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"""
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import json
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from django.forms.widgets import HiddenInput
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from django.utils.safestring import mark_safe
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from django.utils.translation import ugettext_lazy as _
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from jsignature.settings import JSIGNATURE_DEFAULT_CONFIG
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class JSignatureWidget(HiddenInput):
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"""
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A widget handling a signature capture field with with jSignature
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"""
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class Media:
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js = ('js/jSignature.min.js',
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'js/django_jsignature.js')
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def __init__(self, attrs=None, jsignature_attrs=None):
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super(JSignatureWidget, self).__init__(attrs)
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# Store jSignature js config
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self.jsignature_attrs = jsignature_attrs or {}
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def render(self, name, value, attrs=None):
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# Build config
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jsign_id = 'jsign_%s' % name
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jsignature_config = JSIGNATURE_DEFAULT_CONFIG.copy()
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jsignature_config.update(self.jsignature_attrs)
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# Build output
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hidden_input = super(JSignatureWidget, self).render(name, value, attrs)
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div = u'<div id="%s" class="jsign-container"></div>' % jsign_id
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clr = u'<input type="button" value="%s" class="btn">' % _('Reset')
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js = u'$("#%s").jSignature(%s);' % (jsign_id, json.dumps(jsignature_config))
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js += u'$("#%s").jSignature("setData", %s,"native");' % (jsign_id, json.dumps(value))
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js = u'<script type="text/javascript">%s</script>' % js
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out = u'<div class="jsign-wrapper">%s%s%s%s</div>' % (hidden_input, div, clr, js)
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return mark_safe(out)
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