{
    "info": {
        "author": "Souheil Chelfouh",
        "author_email": "trollfot@gmail.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 4 - Beta",
            "Environment :: Web Environment",
            "Framework :: Zope3",
            "Intended Audience :: Other Audience",
            "License :: OSI Approved :: GNU General Public License (GPL)",
            "Operating System :: OS Independent",
            "Programming Language :: Python"
        ],
        "description": "===================\ndolmen.widget.image\n===================\n\n`dolmen.widget.image` is a thin layer above `dolmen.widget.file`\nproviding a widget suitable to fields implementing IImageField. It\nadds, thanks to `dolmen.thumbnailer` a preview of the uploaded image\nin both input and display mode.\n\nExample\n=======\n\nWe are going to develop here a small example, to demonstrate the use\nof `dolmen.widget.image`. First, we instanciate our test model and add\nan image field to the object::\n\n  >>> from persistent import Persistent\n\n  >>> class Mammoth(Persistent):\n  ...     pass\n\n  >>> import dolmen.file\n  >>> import grokcore.component as grok\n  >>> from zope.interface import Interface, alsoProvides\n  >>> from zope.schema.fieldproperty import FieldProperty\n\n  >>> class IMammothId(Interface):\n  ...   \"\"\"Even mammoths need an ID card\"\"\"\n  ...   picture = dolmen.file.ImageField(title=u'Luggages')\n\n  >>> manfred = Mammoth()\n  >>> manfred.picture = None\n  >>> alsoProvides(manfred, IMammothId)\n\nThe picture is now set on our Mammoth. We create a form to try and\nedit the picture field::\n\n  >>> from megrok.z3cform.base import EditForm\n\n  >>> class EditMammoth(EditForm):\n  ...    grok.name('edit')\n  ...    grok.context(IMammothId)\n\n  >>> grok.testing.grok_component('edit', EditMammoth)\n  True\n\nWe persist our Mammoth to get a located mammoth with an URL::\n\n  >>> from zope.component.hooks import getSite\n  >>> root = getSite()\n  >>> root['manfred'] = manfred\n  >>> manfred = root['manfred']\n\nWe can call the edit form on our persisted object::\n\n  >>> from zope.component import getMultiAdapter\n  >>> from zope.publisher.browser import TestRequest\n  \n  >>> request = TestRequest()\n\n  >>> form = getMultiAdapter((manfred, request), name='edit')\n  >>> form.updateWidgets() \n  >>> print form.widgets['picture'].render() \n  <div id=\"form-widgets-picture\"\n       class=\"image-widget required imagefield-field\">\n    <input type=\"file\" id=\"form-widgets-picture-input\"\n           name=\"form.widgets.picture\" />\n  </div>\n\nNow, let's try with a fake value::\n     \n  >>> manfred.picture = \"some fake image\"\n  >>> form = getMultiAdapter((manfred, request), name='edit')\n  >>> form.updateWidgets() \n\n  >>> print form.widgets['picture'].render() \n  <div id=\"form-widgets-picture\"\n       class=\"image-widget required imagefield-field\">\n    <div class=\"image-widget-preview\">\n      <img src=\"http://127.0.0.1/manfred/++thumbnail++picture.preview\" />\n    </div>\n    <span>\n      <a href=\"http://127.0.0.1/manfred/++download++picture\"></a> &mdash;\n    </span>\n    <div style=\"padding-top: 1em;\">\n      <input type=\"radio\" value=\"nochange\" checked=\"checked\"\n             class=\"noborder\"\n             name=\"form.widgets.picture.nochange\"\n             onclick=\"document.getElementById('form-widgets-picture-input').disabled=true\"\n             id=\"form-widgets-picture-nochange\" />\n  <BLANKLINE>\n      <label for=\"form-widgets-picture-nochange\">Keep existing file</label>\n      <br />\n      <input type=\"radio\" value=\"delete\" class=\"noborder\"\n             name=\"form.widgets.picture.nochange\"\n             onclick=\"document.getElementById('form-widgets-picture-input').disabled=true\"\n             id=\"form-widgets-picture-delete\" />\n      <label for=\"form-widgets-picture-delete\">Delete existing file</label>\n      <br />\n      <input type=\"radio\" name=\"form.widgets.picture.nochange\"\n             onclick=\"document.getElementById('form-widgets-picture-input').disabled=false\"\n             id=\"form-widgets-picture-replace\" />\n      <label for=\"form-widgets-picture-replace\">Replace with new file</label>\n    </div>\n    <input type=\"file\" id=\"form-widgets-picture-input\"\n           name=\"form.widgets.picture\" />\n  <BLANKLINE>\n    <script type=\"text/javascript\">document.getElementById('form-widgets-picture-input').disabled=true;</script>\n  </div>\n  <BLANKLINE>\n\nWith non persistent objects (which don't resolve to an URL), no\npreview is displayed. If we can't resolve to an URL, we can't serve\nthe thumbnail or download the data::\n\n  >>> judith = Mammoth()\n  >>> judith.picture = \"Fake image data\"\n  >>> alsoProvides(judith, IMammothId)\n\n  >>> form = getMultiAdapter((judith, request), name='edit')\n  >>> form.updateWidgets() \n  >>> print form.widgets['picture'].render() \n  <div id=\"form-widgets-picture\"\n       class=\"image-widget required imagefield-field\">\n  <BLANKLINE>\n  <BLANKLINE>\n  <BLANKLINE>\n  <BLANKLINE>\n    <div style=\"padding-top: 1em;\">\n      <input type=\"radio\" value=\"nochange\" checked=\"checked\"\n             class=\"noborder\"\n             name=\"form.widgets.picture.nochange\"\n             onclick=\"document.getElementById('form-widgets-picture-input').disabled=true\"\n             id=\"form-widgets-picture-nochange\" />\n  <BLANKLINE>\n      <label for=\"form-widgets-picture-nochange\">Keep existing file</label>\n      <br />\n  <BLANKLINE>\n      <label for=\"form-widgets-picture-delete\">Delete existing file</label>\n      <br />\n      <input type=\"radio\" name=\"form.widgets.picture.nochange\"\n             onclick=\"document.getElementById('form-widgets-picture-input').disabled=false\"\n             id=\"form-widgets-picture-replace\" />\n      <label for=\"form-widgets-picture-replace\">Replace with new file</label>\n    </div>\n    <input type=\"file\" id=\"form-widgets-picture-input\"\n           name=\"form.widgets.picture\" />\n  <BLANKLINE>\n    <script type=\"text/javascript\">document.getElementById('form-widgets-picture-input').disabled=true;</script>\n  </div>\n  <BLANKLINE>\n\n\nChangelog\n=========\n\n0.2 (2010-03-01)\n----------------\n\n* Updated the code to use ``dolmen.widget.file 0.2`` and ``dolmen.file\n  0.5.1``.\n\n* Updated the template to use the ``zope.size.ISized`` adapter to\n  display the file size.\n\n* Updated the tests to get rid of the unneeded zope.app packages.\n\n0.1 (2009-10-22)\n----------------\n\n* Initial release",
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        "keywords": "Grok Zope3 Dolmen Widget Image",
        "license": "GPL",
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        "name": "dolmen.widget.image",
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        "summary": "Image widget (with thumbnails) for z3c.form, using Grok",
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