[widgets][assetbrowser] Implement contextual menu for deletion

beat/editor/widgets/assetbrowser.py

@@ -23,11 +23,13 @@
 #                                                                             #
 ###############################################################################
 
+from PyQt5 import QtCore
 from PyQt5.QtCore import pyqtSignal
 from PyQt5.QtCore import QSortFilterProxyModel
 
 from PyQt5.QtWidgets import QHeaderView
 from PyQt5.QtWidgets import QFileSystemModel
+from PyQt5.QtWidgets import QMenu
 from PyQt5.QtWidgets import QStyledItemDelegate
 from PyQt5.QtWidgets import QTreeView
 from PyQt5.QtWidgets import QVBoxLayout
@@ -88,6 +90,7 @@ class AssetBrowser(QWidget):
     """
 
     json_selected = pyqtSignal(["QString"])
+    deletionRequested = pyqtSignal(["QString"])
 
     def __init__(self, parent=None):
         """Constructor"""
@@ -104,11 +107,13 @@ class AssetBrowser(QWidget):
         self.view.setColumnHidden(2, True)
         self.view.header().setSectionResizeMode(0, QHeaderView.Stretch)
         self.view.setItemDelegateForColumn(0, AssetItemDelegate(".json"))
+        self.view.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
 
         layout = QVBoxLayout(self)
         layout.addWidget(self.view)
 
         self.view.doubleClicked.connect(self.__on_item_selected)
+        self.view.customContextMenuRequested.connect(self.__open_menu)
 
     def __on_item_selected(self, index):
         """When an item is selected, emit the json_selected signal with
@@ -119,6 +124,22 @@ class AssetBrowser(QWidget):
         if self.filesystem_model.type(source_index).lower() == "json file":
             self.json_selected.emit(self.filesystem_model.filePath(source_index))
 
+    def __open_menu(self, position):
+
+        indexes = self.view.selectedIndexes()
+        if indexes and indexes[0].data().endswith(".json"):
+            menu = QMenu()
+            action = menu.addAction(self.tr("Delete"))
+            action.triggered.connect(self.__on_delete)
+
+            menu.exec_(self.view.viewport().mapToGlobal(position))
+
+    def __on_delete(self):
+        file_index, _ = self.view.selectedIndexes()
+        source_index = self.proxy_model.mapToSource(file_index)
+        path = self.filesystem_model.filePath(source_index)
+        self.deletionRequested.emit(path)
+
     def set_context(self, context):
         """Sets the root path of the prefix to edit"""