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110 lines
3 KiB
Python
110 lines
3 KiB
Python
import json
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from qtpy import QtWidgets, QtCore
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class InstanceDetail(QtWidgets.QWidget):
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save_triggered = QtCore.Signal()
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def __init__(self, parent=None):
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super(InstanceDetail, self).__init__(parent)
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details_widget = QtWidgets.QPlainTextEdit(self)
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details_widget.setObjectName("SubsetManagerDetailsText")
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save_btn = QtWidgets.QPushButton("Save", self)
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self._block_changes = False
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self._editable = False
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self._item_id = None
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layout = QtWidgets.QVBoxLayout(self)
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layout.setContentsMargins(0, 0, 0, 0)
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layout.addWidget(details_widget, 1)
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layout.addWidget(save_btn, 0, QtCore.Qt.AlignRight)
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save_btn.clicked.connect(self._on_save_clicked)
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details_widget.textChanged.connect(self._on_text_change)
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self._details_widget = details_widget
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self._save_btn = save_btn
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self.set_editable(False)
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def _on_save_clicked(self):
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if self.is_valid():
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self.save_triggered.emit()
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def set_editable(self, enabled=True):
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self._editable = enabled
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self.update_state()
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def update_state(self, valid=None):
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editable = self._editable
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if not self._item_id:
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editable = False
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self._save_btn.setVisible(editable)
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self._details_widget.setReadOnly(not editable)
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if valid is None:
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valid = self.is_valid()
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self._save_btn.setEnabled(valid)
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self._set_invalid_detail(valid)
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def _set_invalid_detail(self, valid):
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state = ""
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if not valid:
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state = "invalid"
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current_state = self._details_widget.property("state")
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if current_state != state:
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self._details_widget.setProperty("state", state)
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self._details_widget.style().polish(self._details_widget)
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def set_details(self, container, item_id):
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self._item_id = item_id
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text = "Nothing selected"
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if item_id:
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try:
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text = json.dumps(container, indent=4)
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except Exception:
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text = str(container)
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self._block_changes = True
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self._details_widget.setPlainText(text)
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self._block_changes = False
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self.update_state()
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def instance_data_from_text(self):
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try:
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jsoned = json.loads(self._details_widget.toPlainText())
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except Exception:
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jsoned = None
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return jsoned
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def item_id(self):
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return self._item_id
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def is_valid(self):
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if not self._item_id:
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return True
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value = self._details_widget.toPlainText()
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valid = False
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try:
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jsoned = json.loads(value)
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if jsoned and isinstance(jsoned, dict):
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valid = True
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except Exception:
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pass
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return valid
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def _on_text_change(self):
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if self._block_changes or not self._item_id:
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return
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valid = self.is_valid()
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self.update_state(valid)
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