Merge pull request #3256 from plotly/master-3.0.2

Master 3.0.2

Author: T4rk1n

@plotly/dash-generator-test-component-typescript/dash_prop_typing.py

@@ -0,0 +1,23 @@
+import React, { useState, useEffect } from "react";
+import PropTypes from "prop-types";
+
+const RenderType = (props) => {
+    const onClick = () => {
+        props.setProps({n_clicks: (props.n_clicks || 0) + 1})
+    }
+
+    return <div id={props.id}>
+        <span>{props.dashRenderType}</span>
+        <button onClick={onClick}>Test Internal</button>
+    </div>;
+};
+
+RenderType.propTypes = {
+    id: PropTypes.string,
+    dashRenderType: PropTypes.string,
+    n_clicks: PropTypes.number,
+    setProps: PropTypes.func
+};
+
+RenderType.dashRenderType = true;
+export default RenderType;

@plotly/dash-test-components/src/components/RenderType.js

@@ -7,6 +7,7 @@ import MyPersistedComponentNested from './components/MyPersistedComponentNested'
 import StyledComponent from './components/StyledComponent';
 import WidthComponent from './components/WidthComponent';
 import ComponentAsProp from './components/ComponentAsProp';
+import RenderType from './components/RenderType';
 
 import DrawCounter from './components/DrawCounter';
 import AddPropsComponent from "./components/AddPropsComponent";
@@ -32,4 +33,5 @@ export {
     ShapeOrExactKeepOrderComponent,
     ArrayOfExactOrShapeWithNodePropAssignNone,
     ExternalComponent,
+    RenderType
 };

@plotly/dash-test-components/src/index.js

@@ -2,6 +2,22 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
+## [3.0.2] - 2025-04-01
+
+## Changed
+- [#3113](https://github.com/plotly/dash/pull/3113) Adjusted background polling requests to strip the data from the request, this allows for context to flow as normal. This addresses issue [#3111](https://github.com/plotly/dash/pull/3111)
+- [#3248](https://github.com/plotly/dash/pull/3248) Changes to rendering logic:
+  - if it is first time rendering, render from the parent props
+  - listens only to updates for that single component, no children listening to parents
+  - if parents change a prop with components as props, only the prop changed re-renders, this is then forced on all children regardless of whether or not the props changed
+
+## Fixed
+- [#3251](https://github.com/plotly/dash/pull/3251). Prevented default styles from overriding `className_*` props in `dcc.Upload` component.
+
+## Added
+- [#3248](https://github.com/plotly/dash/pull/3248) added new `dashRenderType` to determine why the component layout was changed (`internal`, `callback`, `parent`, `clientsideApi`):
+    - this can be utilized to keep from rendering components by the component having `dashRenderType` defined as a prop, and the `dashRenderType = true` must be set on the component, eg (`Div.dashRenderType = true`)
+
 ## [3.0.1] - 2025-03-24
 
 ## Fixed

CHANGELOG.md

@@ -1,6 +1,6 @@
 {
   "name": "dash-core-components",
-  "version": "3.0.3",
+  "version": "3.0.4",
   "description": "Core component suite for Dash",
   "repository": {
     "type": "git",

components/dash-core-components/package-lock.json

@@ -64,6 +64,11 @@ export default class Upload extends Component {
             style_reject,
             style_disabled,
         } = this.props;
+
+        const activeStyle = className_active ? undefined : style_active;
+        const disabledStyle = className_disabled ? undefined : style_disabled;
+        const rejectStyle = className_reject ? undefined : style_reject;
+
         return (
             <LoadingElement id={id}>
                 <Dropzone
@@ -79,9 +84,9 @@ export default class Upload extends Component {
                     rejectClassName={className_reject}
                     disabledClassName={className_disabled}
                     style={style}
-                    activeStyle={style_active}
-                    rejectStyle={style_reject}
-                    disabledStyle={style_disabled}
+                    activeStyle={activeStyle}
+                    rejectStyle={rejectStyle}
+                    disabledStyle={disabledStyle}
                 >
                     {children}
                 </Dropzone>

components/dash-core-components/package.json

@@ -28,10 +28,32 @@ def test_upca001_upload_children_gallery(dash_dcc):
                     "textAlign": "center",
                 },
             ),
+            dcc.Upload(
+                "upload",
+                disabled=True,
+                className_disabled="upload-disabled",
+                id="upload",
+            ),
+            dcc.Upload("upload", disabled=True, id="upload-no-className"),
         ]
     )
     dash_dcc.start_server(app)
     time.sleep(0.5)
     dash_dcc.percy_snapshot("upca001 children gallery")
 
+    first_child = dash_dcc.find_element("#upload").find_element_by_css_selector(
+        ":first-child"
+    )
+    # Check that there is no default style since className is specified
+    style = first_child.get_attribute("style")
+    assert "opacity: 0.5" not in style
+
+    first_child = dash_dcc.find_element(
+        "#upload-no-className"
+    ).find_element_by_css_selector(":first-child")
+
+    # Check that there is default style since no className is specified
+    style = first_child.get_attribute("style")
+    assert "opacity: 0.5" in style
+
     assert dash_dcc.get_logs() == []

components/dash-core-components/src/fragments/Upload.react.js

@@ -1,6 +1,6 @@
 import os
 
-__version__ = "2.0.5"
+__version__ = "2.0.6"
 
 _available_react_versions = {"18.3.1", "18.2.0", "16.14.0"}
 _available_reactdom_versions = {"18.3.1", "18.2.0", "16.14.0"}
@@ -64,7 +64,7 @@ def _set_react_version(v_react, v_reactdom=None):
     {
         "relative_package_path": "dash-renderer/build/dash_renderer.min.js",
         "dev_package_path": "dash-renderer/build/dash_renderer.dev.js",
-        "external_url": "https://unpkg.com/[email protected].5"
+        "external_url": "https://unpkg.com/[email protected].6"
         "/build/dash_renderer.min.js",
         "namespace": "dash",
     },