[ui] Inspector3D: add media contextual menu

Contextual menu to expose additional actions:
 * open media containing folder
 * copy media path
 * advanced manual control over media (un)loading
+ fix MediaLibrary to avoid binding loop on 'visible' when directly modifying 'request' property

meshroom/ui/components/filepath.py

@@ -72,3 +72,9 @@ class FilepathHelper(QObject):
     def stringToUrl(self, path):
         """ Convert a path (string) to a QUrl using 'QUrl.fromLocalFile' method """
         return QUrl.fromLocalFile(path)
+
+    @Slot(str, result=str)
+    @Slot(QUrl, result=str)
+    def normpath(self, path):
+        """ Returns native normalized path """
+        return os.path.normpath(self.asStr(path))

meshroom/ui/qml/Viewer3D/Inspector3D.qml

@@ -193,7 +193,7 @@ FloatingPane {
                         Layout.alignment: Qt.AlignTop
                         text: model.visible ? MaterialIcons.visibility : MaterialIcons.visibility_off
                         font.pointSize: 10
-                        ToolTip.text: model.visible ? "Hide" : "Show"
+                        ToolTip.text: model.visible ? "Hide" : model.requested ? "Show" : model.valid ? "Load and Show" : "Load and Show when Available"
                         flat: true
                         opacity: model.visible ? 1.0 : 0.6
                         onClicked: {
@@ -272,6 +272,7 @@ FloatingPane {
                             id: mouseArea
                             anchors.fill: centralLayout
                             hoverEnabled: true
+                            acceptedButtons: Qt.AllButtons
                             onEntered: { if(model.attribute) uigraph.hoveredNode = model.attribute.node }
                             onExited: { if(model.attribute) uigraph.hoveredNode = null }
                             onClicked: {
@@ -279,6 +280,8 @@ FloatingPane {
                                     uigraph.selectedNode = model.attribute.node;
                                 else
                                     uigraph.selectedNode = null;
+                                if(mouse.button == Qt.RightButton)
+                                    contextMenu.popup();
                                 mediaListView.currentIndex = index;
                             }
                             onDoubleClicked: {
@@ -286,6 +289,27 @@ FloatingPane {
                                 camera.viewEntity(mediaLibrary.entityAt(index));
                             }
                         }
+
+                        Menu {
+                            id: contextMenu
+                            MenuItem {
+                                text: "Open Containing Folder"
+                                enabled: model.valid
+                                onTriggered: Qt.openUrlExternally(Filepath.dirname(model.source))
+                            }
+                            MenuItem {
+                                text: "Copy Path"
+                                // hidden TextEdit to copy to clipboard
+                                TextEdit { id: fullpath; visible: false; text: Filepath.normpath(model.source) }
+                                onTriggered: { fullpath.selectAll(); fullpath.copy(); }
+                            }
+                            MenuSeparator {}
+                            MenuItem {
+                                text: model.requested ? "Unload Media" : "Load Media"
+                                enabled: model.valid
+                                onTriggered: model.requested = !model.requested
+                            }
+                        }
                     }
 
                     // Media unavailability indicator

meshroom/ui/qml/Viewer3D/MediaLibrary.qml

@@ -194,10 +194,8 @@ Entity {
                 if(attribute) {
                     model.source = rawSource;
                 }
-                // auto-restore entity if raw source is in cache ...
+                // auto-restore entity if raw source is in cache
                 model.requested = forceRequest || (!model.valid && model.requested) || cache.contains(rawSource);
-                // ... and update media visibility (useful if media was hidden but loaded back from cache)
-                model.visible = model.requested;
                 model.valid = Filepath.exists(rawSource) && dependencyReady;
             }
 
@@ -211,9 +209,13 @@ Entity {
                     remove(index)
             }
 
-            onCurrentSourceChanged: updateModelAndCache()
+            onCurrentSourceChanged: updateModelAndCache(false)
 
             onFinalSourceChanged: {
+                // update media visibility
+                // (useful if media was explicitly unloaded or hidden but loaded back from cache)
+                model.visible = model.requested;
+
                 var cachedObject = cache.pop(rawSource);
                 cached = cachedObject !== undefined;
                 if(cached) {