#1228 Zoom not working on Firefox (#1229)

canvas_modules/common-canvas/src/common-canvas/svg-canvas-renderer.js

@@ -743,8 +743,17 @@ export default class SVGCanvasRenderer {
 	// Returns the current mouse position based on the D3 SVG selection object
 	// passed in.
 	getMousePos(d3Event, svgSel) {
-		const mousePos = d3.pointer(d3Event, svgSel.node());
-		return { x: mousePos[0], y: mousePos[1] };
+		// The d3Event must have either a sourceEvent or be an actual event, which
+		// can be indicated by the existence of a pageX attribute. This test is only
+		// necessary on Firefox and then only when the action (such as zoom)
+		// calling this function is itself called programmatically - for example,
+		// when the user clicks one of the zoom buttons on the toolbar. It's not
+		// clear why d3.pointer cannot handle all events like it can on Chrome.
+		if (d3Event.sourceEvent || d3Event.pageX) {
+			const mousePos = d3.pointer(d3Event, svgSel.node());
+			return { x: mousePos[0], y: mousePos[1] };
+		}
+		return { x: 0, y: 0 };
 	}
 
 	// Convert coordinates from the page (based on the page top left corner) to

scripts/publish_modules.sh

@@ -52,7 +52,7 @@ setup_git_branch
 checkout_branch ${MAIN}
 
 cd ./canvas_modules/common-canvas
-npm version minor
+npm version patch
 NPM_VERSION=`node -p "require('./package.json').version"`
 echo "Updated main build $NPM_VERSION"
 commit_changes ${MAIN} "Update Elyra Canvas to version ${NPM_VERSION} [skip ci]"