💄 Optimize embed view renderer loading logic

This commit is contained in:
2025-09-08 15:48:10 +08:00
parent 7cd10118cc
commit edb0a25f34

View File

@@ -1,4 +1,5 @@
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';
import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:island/models/post.dart';
@@ -22,6 +23,10 @@ class EmbedViewRenderer extends HookConsumerWidget {
final theme = Theme.of(context);
final colorScheme = theme.colorScheme;
// State management for lazy loading
final shouldLoad = useState(false);
final isLoading = useState(false);
return Container(
constraints: BoxConstraints(maxHeight: maxHeight ?? 400),
decoration: BoxDecoration(
@@ -93,125 +98,181 @@ class EmbedViewRenderer extends HookConsumerWidget {
),
),
// WebView content
// WebView content with lazy loading
AspectRatio(
aspectRatio: embedView.aspectRatio ?? 1,
child: InAppWebView(
initialUrlRequest: URLRequest(url: WebUri(embedView.uri)),
initialSettings: InAppWebViewSettings(
javaScriptEnabled: true,
mediaPlaybackRequiresUserGesture: false,
allowsInlineMediaPlayback: true,
useShouldOverrideUrlLoading: true,
useOnLoadResource: true,
supportZoom: false,
useWideViewPort: false,
loadWithOverviewMode: true,
builtInZoomControls: false,
displayZoomControls: false,
minimumFontSize: 12,
preferredContentMode: UserPreferredContentMode.RECOMMENDED,
allowsBackForwardNavigationGestures: false,
allowsLinkPreview: false,
isInspectable: false,
),
onWebViewCreated: (controller) {
// Configure webview settings
controller.addJavaScriptHandler(
handlerName: 'onHeightChanged',
callback: (args) {
// Handle dynamic height changes if needed
},
);
},
onLoadStart: (controller, url) {
// Handle load start
},
onLoadStop: (controller, url) async {
// Inject CSS to improve mobile display and remove borders
await controller.evaluateJavascript(
source: '''
// Remove unwanted elements
var elements = document.querySelectorAll('nav, header, footer, .ads, .advertisement, .sidebar');
for (var i = 0; i < elements.length; i++) {
elements[i].style.display = 'none';
}
child:
shouldLoad.value
? Stack(
children: [
InAppWebView(
initialUrlRequest: URLRequest(
url: WebUri(embedView.uri),
),
initialSettings: InAppWebViewSettings(
javaScriptEnabled: true,
mediaPlaybackRequiresUserGesture: false,
allowsInlineMediaPlayback: true,
useShouldOverrideUrlLoading: true,
useOnLoadResource: true,
supportZoom: false,
useWideViewPort: false,
loadWithOverviewMode: true,
builtInZoomControls: false,
displayZoomControls: false,
minimumFontSize: 12,
preferredContentMode:
UserPreferredContentMode.RECOMMENDED,
allowsBackForwardNavigationGestures: false,
allowsLinkPreview: false,
isInspectable: false,
),
onWebViewCreated: (controller) {
// Configure webview settings
controller.addJavaScriptHandler(
handlerName: 'onHeightChanged',
callback: (args) {
// Handle dynamic height changes if needed
},
);
},
onLoadStart: (controller, url) {
isLoading.value = true;
},
onLoadStop: (controller, url) async {
isLoading.value = false;
// Inject CSS to improve mobile display and remove borders
await controller.evaluateJavascript(
source: '''
// Remove unwanted elements
var elements = document.querySelectorAll('nav, header, footer, .ads, .advertisement, .sidebar');
for (var i = 0; i < elements.length; i++) {
elements[i].style.display = 'none';
}
// Remove borders from embedded content (YouTube, Vimeo, etc.)
var iframes = document.querySelectorAll('iframe');
for (var i = 0; i < iframes.length; i++) {
iframes[i].style.border = 'none';
iframes[i].style.borderRadius = '0';
}
// Remove borders from embedded content (YouTube, Vimeo, etc.)
var iframes = document.querySelectorAll('iframe');
for (var i = 0; i < iframes.length; i++) {
iframes[i].style.border = 'none';
iframes[i].style.borderRadius = '0';
}
// Remove borders from video elements
var videos = document.querySelectorAll('video');
for (var i = 0; i < videos.length; i++) {
videos[i].style.border = 'none';
videos[i].style.borderRadius = '0';
}
// Remove borders from video elements
var videos = document.querySelectorAll('video');
for (var i = 0; i < videos.length; i++) {
videos[i].style.border = 'none';
videos[i].style.borderRadius = '0';
}
// Remove borders from any element that might have them
var allElements = document.querySelectorAll('*');
for (var i = 0; i < allElements.length; i++) {
if (allElements[i].style.border) {
allElements[i].style.border = 'none';
}
}
// Remove borders from any element that might have them
var allElements = document.querySelectorAll('*');
for (var i = 0; i < allElements.length; i++) {
if (allElements[i].style.border) {
allElements[i].style.border = 'none';
}
}
// Improve readability
var body = document.body;
body.style.fontSize = '14px';
body.style.lineHeight = '1.4';
body.style.margin = '0';
body.style.padding = '0';
// Improve readability
var body = document.body;
body.style.fontSize = '14px';
body.style.lineHeight = '1.4';
body.style.margin = '0';
body.style.padding = '0';
// Handle dynamic content
var observer = new MutationObserver(function(mutations) {
// Remove borders from newly added elements
var newIframes = document.querySelectorAll('iframe');
for (var i = 0; i < newIframes.length; i++) {
if (!newIframes[i].style.border || newIframes[i].style.border !== 'none') {
newIframes[i].style.border = 'none';
newIframes[i].style.borderRadius = '0';
}
}
var newVideos = document.querySelectorAll('video');
for (var i = 0; i < newVideos.length; i++) {
if (!newVideos[i].style.border || newVideos[i].style.border !== 'none') {
newVideos[i].style.border = 'none';
newVideos[i].style.borderRadius = '0';
}
}
window.flutter_inappwebview.callHandler('onHeightChanged', document.body.scrollHeight);
});
observer.observe(document.body, { childList: true, subtree: true });
''',
);
},
onLoadError: (controller, url, code, message) {
// Handle load errors
},
onLoadHttpError: (controller, url, statusCode, description) {
// Handle HTTP errors
},
shouldOverrideUrlLoading: (controller, navigationAction) async {
final uri = navigationAction.request.url;
if (uri != null && uri.toString() != embedView.uri) {
// Open external links in browser
// You might want to use url_launcher here
return NavigationActionPolicy.CANCEL;
}
return NavigationActionPolicy.ALLOW;
},
onProgressChanged: (controller, progress) {
// Handle progress changes if needed
},
onConsoleMessage: (controller, consoleMessage) {
// Handle console messages for debugging
debugPrint('WebView Console: ${consoleMessage.message}');
},
),
// Handle dynamic content
var observer = new MutationObserver(function(mutations) {
// Remove borders from newly added elements
var newIframes = document.querySelectorAll('iframe');
for (var i = 0; i < newIframes.length; i++) {
if (!newIframes[i].style.border || newIframes[i].style.border !== 'none') {
newIframes[i].style.border = 'none';
newIframes[i].style.borderRadius = '0';
}
}
var newVideos = document.querySelectorAll('video');
for (var i = 0; i < newVideos.length; i++) {
if (!newVideos[i].style.border || newVideos[i].style.border !== 'none') {
newVideos[i].style.border = 'none';
newVideos[i].style.borderRadius = '0';
}
}
window.flutter_inappwebview.callHandler('onHeightChanged', document.body.scrollHeight);
});
observer.observe(document.body, { childList: true, subtree: true });
''',
);
},
onLoadError: (controller, url, code, message) {
isLoading.value = false;
},
onLoadHttpError: (
controller,
url,
statusCode,
description,
) {
isLoading.value = false;
},
shouldOverrideUrlLoading: (
controller,
navigationAction,
) async {
final uri = navigationAction.request.url;
if (uri != null &&
uri.toString() != embedView.uri) {
// Open external links in browser
// You might want to use url_launcher here
return NavigationActionPolicy.CANCEL;
}
return NavigationActionPolicy.ALLOW;
},
onProgressChanged: (controller, progress) {
// Handle progress changes if needed
},
onConsoleMessage: (controller, consoleMessage) {
// Handle console messages for debugging
debugPrint(
'WebView Console: ${consoleMessage.message}',
);
},
),
if (isLoading.value)
Container(
color: colorScheme.surfaceContainerLowest,
child: const Center(
child: CircularProgressIndicator(),
),
),
],
)
: GestureDetector(
onTap: () {
shouldLoad.value = true;
},
child: Container(
color: colorScheme.surfaceContainerLowest,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
Symbols.play_arrow,
size: 48,
color: colorScheme.onSurfaceVariant.withOpacity(
0.6,
),
),
const SizedBox(height: 8),
Text(
'Tap to load content',
style: theme.textTheme.bodyMedium?.copyWith(
color: colorScheme.onSurfaceVariant
.withOpacity(0.6),
),
),
],
),
),
),
),
],
),