[ui] ErrorHandler: analyse error (only used by computation for now)

meshroom/core/taskManager.py

@@ -186,7 +186,9 @@ class TaskManager(BaseObject):
             if chunksInConflict:
                 chunksStatus = set([chunk.status.status.name for chunk in chunksInConflict])
                 chunksName = [node.name for node in chunksInConflict]
-                msg = 'TaskManager.compute(): WARNING - Some nodes are already submitted with status: {}\nNodes: {}'.format(
+                # Syntax and terms are used on QML side to recognize the error
+                msg = '[COMPUTATION] Already Submitted:\n' \
+                      'WARNING - Some nodes are already submitted with status: {}\nNodes: {}'.format(
                       ', '.join(chunksStatus),
                       ', '.join(chunksName)
                       )

meshroom/ui/qml/Utils/errorHandler.js

@@ -0,0 +1,32 @@
+.pragma library
+
+/**
+ * Analyse raised errors.
+ * Works only if errors are written with this specific syntax:
+ * [Context] ErrorType: ErrorMessage
+ *
+ * Maybe it would be better to handle errors on Python side but it should be harder to handle Dialog customization
+ */
+function analyseError(error) {
+    const msg = error.toString()
+
+    // The use of [^] is like . but it takes in count every character including \n (works as a double negation)
+    // Group 1: Context
+    // Group 2: ErrorType
+    // Group 3: ErrorMessage
+    const regex = /\[(.*)\]\s(.*):([^]*)/
+    if(!regex.test(msg))
+        return {
+            context: "",
+            type: "",
+            msg: ""
+        }
+
+    const data = regex.exec(msg)
+
+    return {
+        context: data[1],
+        type: data[2],
+        msg: data[3].startsWith("\n") ? data[3].slice(1) : data[3]
+    }
+}

meshroom/ui/qml/Utils/qmldir

@@ -4,6 +4,7 @@ singleton Colors 1.0 Colors.qml
 SortFilterDelegateModel 1.0 SortFilterDelegateModel.qml
 Request 1.0 request.js
 Format 1.0 format.js
+ErrorHandler 1.0 errorHandler.js
 # using singleton here causes random crash at application exit
 # singleton Clipboard 1.0 Clipboard.qml
 # singleton Filepath 1.0 Filepath.qml

meshroom/ui/qml/main.qml

@@ -166,9 +166,9 @@ ApplicationWindow {
                     _reconstruction.execute(node)
                 }
                 catch (error) {
-                    let msg = error.toString()
+                    const data = ErrorHandler.analyseError(error)
-                    msg = msg.split("Error: ")[1] // Remove the QML prefix
+                    if(data.context === "COMPUTATION")
-                    computeErrorDialog.openError(msg, node)
+                        computeErrorDialog.openError(data.type, data.msg, node)
                 }
             }
         }
@@ -180,29 +180,26 @@ ApplicationWindow {
         MessageDialog {
             id: computeErrorDialog
 
-            property int errorId // Used to specify signals' behavior
+            property string errorType // Used to specify signals' behavior
             property var currentNode: null
 
-            function openError(msg, node) {
+            function openError(type, msg, node) {
-                // Open specific dialog if the error is related to the following method
+                errorType = type
-                // There is maybe a better way to handle this
+                switch(type) {
-                if(msg.startsWith("TaskManager.compute()"))
+                    case "Already Submitted": this.setupPendingStatusError(msg, node); break
-                    this.setupPendingStatusError(msg, node)
+                    default: this.onlyDisplayError(msg)
-                else
+                }
-                    this.onlyDisplayError(msg)
 
                 this.open()
             }
 
             function onlyDisplayError(msg) {
-                errorId = 0
                 text = msg
 
                 standardButtons = Dialog.Ok
             }
 
             function setupPendingStatusError(msg, node) {
-                errorId = 1
                 currentNode = node
                 text = msg + "\n\nDo you want to Clear Pending Status and Start Computing?"
 
@@ -217,17 +214,14 @@ ApplicationWindow {
             text: ""
 
             onAccepted: {
-                switch(errorId) {
+                switch(errorType) {
-                    case 0: {
+                    case "Already Submitted": {
-                        close()
-                        break
-                    }
-                    case 1: {
                         close()
                         _reconstruction.graph.clearSubmittedNodes()
                         _reconstruction.execute(currentNode)
                         break
                     }
+                    default: close()
                 }
             }