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comparison browser_side/file_tools.py @ 387:933bce4cb816

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browser_side: factorize the code from AvatarUpload to a new class FileUploadPanel
author souliane <souliane@mailoo.org>
date Tue, 25 Feb 2014 07:56:05 +0100
parents 30d03d9f07e4
children f539f6f8ee9c
comparison
equal deleted inserted replaced
386:87e1194e55d6 387:933bce4cb816
16 16
17 # You should have received a copy of the GNU Affero General Public License 17 # You should have received a copy of the GNU Affero General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. 18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 19
20 from pyjamas.ui.FileUpload import FileUpload 20 from pyjamas.ui.FileUpload import FileUpload
21 from pyjamas.ui.FormPanel import FormPanel
21 from pyjamas import Window 22 from pyjamas import Window
22 from pyjamas import DOM 23 from pyjamas import DOM
24 from pyjamas.ui.VerticalPanel import VerticalPanel
25 from pyjamas.ui.HTML import HTML
26 from pyjamas.ui.HorizontalPanel import HorizontalPanel
27 from pyjamas.ui.Button import Button
28 from pyjamas.ui.Label import Label
23 29
24 30
25 class FilterFileUpload(FileUpload): 31 class FilterFileUpload(FileUpload):
26 32
27 def __init__(self, name, max_size, types=None): 33 def __init__(self, name, max_size, types=None):
28 """ 34 """
29 @param name: the input element name 35 @param name: the input element name and id
30 @param max_size: maximum file size in MB 36 @param max_size: maximum file size in MB
31 @param types: allowed types as a list of couples (x, y, z): 37 @param types: allowed types as a list of couples (x, y, z):
32 - x: MIME content type e.g. "audio/ogg" 38 - x: MIME content type e.g. "audio/ogg"
33 - y: file extension e.g. "*.ogg" 39 - y: file extension e.g. "*.ogg"
34 - z: description for the user e.g. "Ogg Vorbis Audio" 40 - z: description for the user e.g. "Ogg Vorbis Audio"
57 return False 63 return False
58 if size > self.max_size * pow(2, 20): 64 if size > self.max_size * pow(2, 20):
59 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size) 65 Window.alert('This file is too big!\nMaximum file size: %d MB.' % self.max_size)
60 return False 66 return False
61 return True 67 return True
68
69
70 class FileUploadPanel(FormPanel):
71
72 def __init__(self, action_url, input_id, max_size, texts=None, close_cb=None):
73 """Build a form panel to upload a file.
74 @param action_url: the form action URL
75 @param input_id: the input element name and id
76 @param max_size: maximum file size in MB
77 @param texts: a dict to ovewrite the default textual values
78 @param close_cb: the close button callback method
79 """
80 FormPanel.__init__(self)
81 self.texts = {'ok_button': 'Upload file',
82 'cancel_button': 'Cancel',
83 'body': 'Please select a file.',
84 'submitting': '<strong>Submitting, please wait...</strong>',
85 'errback': "Your file has been rejected...",
86 'body_errback': 'Please select another file.',
87 'callback': "Your file has been accepted!"}
88 if isinstance(texts, dict):
89 self.texts.update(texts)
90 self.close_cb = close_cb
91 self.setEncoding(FormPanel.ENCODING_MULTIPART)
92 self.setMethod(FormPanel.METHOD_POST)
93 self.setAction(action_url)
94 self.vPanel = VerticalPanel()
95 self.message = HTML(self.texts['body'])
96 self.vPanel.add(self.message)
97
98 hPanel = HorizontalPanel()
99 hPanel.setSpacing(5)
100 self.file_upload = FilterFileUpload(input_id, max_size)
101 self.vPanel.add(self.file_upload)
102
103 hPanel.add(Button(self.texts['cancel_button'], getattr(self, "onCloseBtnClick")))
104 self.upload_btn = Button(self.texts['ok_button'], getattr(self, "onSubmitBtnClick"))
105 hPanel.add(self.upload_btn)
106
107 self.status = Label()
108 hPanel.add(self.status)
109
110 self.vPanel.add(hPanel)
111
112 self.add(self.vPanel)
113 self.addFormHandler(self)
114
115 def setCloseCb(self, close_cb):
116 self.close_cb = close_cb
117
118 def onCloseBtnClick(self):
119 if self.close_cb:
120 self.close_cb()
121 else:
122 print ("WARNING: no close method defined")
123
124 def onSubmitBtnClick(self):
125 if not self.file_upload.check():
126 return
127 self.message.setHTML(self.texts['submitting'])
128 self.upload_btn.setEnabled(False)
129 self.submit()
130
131 def onSubmit(self, event):
132 pass
133
134 def onSubmitComplete(self, event):
135 result = event.getResults()
136 if result != "OK":
137 Window.alert(self.texts['errback'])
138 self.message.setHTML(self.texts['body_errback'])
139 self.upload_btn.setEnabled(True)
140 else:
141 Window.alert(self.texts['callback'])
142 self.close_cb()