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[ Widget Preview ] Add analytic event that's reported when the previewer is opened - #177949

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widget_preview_connected_analytics
Nov 4, 2025
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[ Widget Preview ] Add analytic event that's reported when the previewer is opened#177949
auto-submit[bot] merged 3 commits into
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widget_preview_connected_analytics

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@bkonyi

@bkonyi bkonyi commented Nov 3, 2025

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With the addition of IDE support, the widget previewer is often started by default by IDE plugins, even if users don't open the previewer. This change adds an additional analytics event which is reported once the widget preview application is loaded and connects to the DTD instance.

Fixes #177948

@bkonyi
[ Widget Preview ] Add analytic event that's reported when the previe…
9500035 
…wer is opened

With the addition of IDE support, the widget previewer is often started
by default by IDE plugins, even if users don't open the previewer. This
change adds an additional analytics event which is reported once the
widget preview application is loaded and connects to the DTD instance.

Fixes #177948
@github-actions github-actions Bot added the tool Affects the "flutter" command-line tool. See also t: labels. label Nov 3, 2025
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Code Review

This pull request introduces a new analytics event, previewer-connected, to track when the widget previewer is actively used. This is achieved by sending an event when the preview application connects to the Dart Tooling Daemon. The changes are well-contained and correctly implement the new tracking logic. My review includes suggestions to add missing documentation for public members to adhere to the project's style guide and to refactor duplicated code in tests for better maintainability.

Comment thread packages/flutter_tools/lib/src/widget_preview/analytics.dart
Comment thread packages/flutter_tools/lib/src/widget_preview/dtd_services.dart
Comment thread ...ols/test/widget_preview_scaffold.shard/widget_preview_scaffold/lib/src/dtd/dtd_services.dart Outdated
Comment thread ...tools/test/widget_preview_scaffold.shard/widget_preview_scaffold/test/dtd_services_test.dart
@bkonyi bkonyi added the autosubmit Merge PR when tree becomes green via auto submit App label Nov 3, 2025
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auto-submit Bot added this pull request to the merge queue Nov 4, 2025
Merged via the queue into master with commit 0359d52 Nov 4, 2025
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auto-submit Bot deleted the widget_preview_connected_analytics branch November 4, 2025 01:46
@flutter-dashboard flutter-dashboard Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Nov 4, 2025
@bkonyi bkonyi added the cp: beta cherry pick this pull request to beta release candidate branch label Nov 4, 2025
flutteractionsbot pushed a commit to flutteractionsbot/flutter that referenced this pull request Nov 4, 2025
@bkonyi GitHub Actions Bot
[ Widget Preview ] Add analytic event that's reported when the previe…
27cf5b6 
…wer is opened (flutter#177949)

With the addition of IDE support, the widget previewer is often started
by default by IDE plugins, even if users don't open the previewer. This
change adds an additional analytics event which is reported once the
widget preview application is loaded and connects to the DTD instance.

Fixes flutter#177948
@engine-flutter-autoroll engine-flutter-autoroll mentioned this pull request Nov 4, 2025
Closed
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 4, 2025
@engine-flutter-autoroll
0359d52 [ Widget Preview ] Add analytic event that's reported when th…
3d55583 
…e previewer is opened (flutter/flutter#177949)
@engine-flutter-autoroll engine-flutter-autoroll mentioned this pull request Nov 4, 2025
Closed
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 4, 2025
@engine-flutter-autoroll
0359d52 [ Widget Preview ] Add analytic event that's reported when th…
60e41a9 
…e previewer is opened (flutter/flutter#177949)
@engine-flutter-autoroll engine-flutter-autoroll mentioned this pull request Nov 4, 2025
Closed
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 4, 2025
@engine-flutter-autoroll
0359d52 [ Widget Preview ] Add analytic event that's reported when th…
da35079 
…e previewer is opened (flutter/flutter#177949)
@engine-flutter-autoroll engine-flutter-autoroll mentioned this pull request Nov 4, 2025
Merged
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Nov 4, 2025
@engine-flutter-autoroll
0359d52 [ Widget Preview ] Add analytic event that's reported when th…
43d5e89 
…e previewer is opened (flutter/flutter#177949)
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request Nov 4, 2025
@engine-flutter-autoroll
Roll Flutter from 027f2e4 to e5d5c01 (73 revisions) (#10362)
835eb31 
Roll Flutter from 027f2e4 to e5d5c01 (73 revisions)

flutter/flutter@027f2e4...e5d5c01

2025-11-04 mdebbar@google.com [web] Upgrade Chrome to 141 (for engine tests) (flutter/flutter#177743)
2025-11-04 116356835+AbdeMohlbi@users.noreply.github.com Replace deprecated withOpacity in `chip_animation_style.0.dart‎`  example (flutter/flutter#177834)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 03612114a36d to c89b6118266b (1 revision) (flutter/flutter#177991)
2025-11-04 mdebbar@google.com [web] Delete unused futurize util (flutter/flutter#177861)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 1a179581af75 to 03612114a36d (1 revision) (flutter/flutter#177984)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 150f844e83fb to 1a179581af75 (3 revisions) (flutter/flutter#177979)
2025-11-04 engine-flutter-autoroll@skia.org Roll Dart SDK from 6f1bd8d05b1d to 156bf665dba4 (2 revisions) (flutter/flutter#177976)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 3990fc40acdf to 150f844e83fb (1 revision) (flutter/flutter#177964)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 85adfd3b8e75 to 3990fc40acdf (1 revision) (flutter/flutter#177962)
2025-11-04 34871572+gmackall@users.noreply.github.com Fix `isHeif` crash (flutter/flutter#177944)
2025-11-04 engine-flutter-autoroll@skia.org Roll Dart SDK from ac065fcd782e to 6f1bd8d05b1d (1 revision) (flutter/flutter#177955)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 001516d132f0 to 85adfd3b8e75 (4 revisions) (flutter/flutter#177958)
2025-11-04 bkonyi@google.com [ Widget Preview ] Add analytic event that's reported when the previewer is opened (flutter/flutter#177949)
2025-11-04 fluttergithubbot@gmail.com Marks Linux_pixel_7pro dynamic_path_stroke_tessellation_perf__timeline_summary to be unflaky (flutter/flutter#171144)
2025-11-03 engine-flutter-autoroll@skia.org Roll Skia from da9b8fb01101 to 001516d132f0 (6 revisions) (flutter/flutter#177951)
2025-11-03 97480502+b-luk@users.noreply.github.com Add FAQ entry about our attempts to remove Skia image codecs. (flutter/flutter#177947)
2025-11-03 jhy03261997@gmail.com Add blockAccessibilityFocus flag (flutter/flutter#175551)
2025-11-03 ahmedsameha1@gmail.com Make sure that a SnackBarAction doesn't crash in 0x0 environment (flutter/flutter#177899)
2025-11-03 ahmedsameha1@gmail.com Make sure that a SelectionArea doesn't crash in 0x0 environment (flutter/flutter#177876)
2025-11-03 34871572+gmackall@users.noreply.github.com Speculative fix for android_verified_input_test (flutter/flutter#177937)
2025-11-03 kjlubick@users.noreply.github.com [skia] Explicitly disable XPS backend (flutter/flutter#177050)
2025-11-03 engine-flutter-autoroll@skia.org Roll Dart SDK from 2d3aa1d5cb9f to ac065fcd782e (2 revisions) (flutter/flutter#177927)
2025-11-03 737941+loic-sharma@users.noreply.github.com Improve Impeller's docs in the top-level docs folder (flutter/flutter#177848)
2025-11-03 ahmedsameha1@gmail.com Make sure that GridTile doesn't crash in 0x0 environment (flutter/flutter#175321)
2025-11-03 ahmedsameha1@gmail.com Make sure that a Slider doesn't crash in 0x0 environment (flutter/flutter#177882)
2025-11-03 planetmarshall@users.noreply.github.com fix(impeller): fix params to glDiscardFrameBufferEXT (flutter/flutter#175589)
2025-11-03 engine-flutter-autoroll@skia.org Roll Skia from 56a10bf56ee0 to da9b8fb01101 (5 revisions) (flutter/flutter#177928)
2025-11-03 47866232+chunhtai@users.noreply.github.com wires up set application locale to web engine (flutter/flutter#177284)
2025-11-03 jesswon@google.com [Android 16] Update `linux_android_emu_unstable` to use avd rev 7 (flutter/flutter#177854)
2025-11-03 ahmedsameha1@gmail.com Make sure that a CheckedPopupMenuItem doesn't crash in 0x0 environment (flutter/flutter#177545)
2025-11-03 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from Ynp3qiXocK8WLTjlb... to vxK5obzfr1X9P2kSh... (flutter/flutter#177917)
2025-11-03 130006795+Spivak-adam@users.noreply.github.com Update pubspec.yaml.tmpl build version tracker on line 5 (flutter/flutter#173600)
2025-11-03 jason-simmons@users.noreply.github.com [Impeller] Fix the source rectangle used when rendering an AtlasContents with the strict mode for nine-patch images (flutter/flutter#177860)
2025-11-03 git@reb0.org docs: Default Splash / Loading screen for web app in index.html (flutter/flutter#177084)
2025-11-03 engine-flutter-autoroll@skia.org Roll Skia from 25e1e4e96980 to 56a10bf56ee0 (6 revisions) (flutter/flutter#177910)
2025-11-03 ahmedsameha1@gmail.com Make sure that a PopupMenuItem doesn't crash in 0x0 environment (flutter/flutter#177533)
2025-11-03 ahmedsameha1@gmail.com Make sure that a RefreshProgressIndicator doesn't crash in 0x0 enviro… (flutter/flutter#177556)
2025-11-03 ahmedsameha1@gmail.com Make sure that a PopupMenuButton doesn't crash in 0x0 environment (flutter/flutter#177493)
2025-11-03 ahmedsameha1@gmail.com Make sure that a CircularProgressIndicator doesn't crash in 0x0 envir… (flutter/flutter#177555)
2025-11-02 ahmedsameha1@gmail.com Make sure that a Radio doesn't crash in 0x0 environment (flutter/flutter#177580)
2025-11-02 ahmedsameha1@gmail.com Make sure that a RadioListTile doesn't crash in 0x0 environment (flutter/flutter#177576)
2025-11-02 ahmedsameha1@gmail.com Make sure that an ExpandIcon doesn't crash in 0x0 envrionment (flutter/flutter#175042)
2025-11-02 ahmedsameha1@gmail.com Make sure that a RangeSlider doesn't crash in 0x0 environment (flutter/flutter#177642)
2025-11-02 ahmedsameha1@gmail.com Make sure that a GridTileBar doesn't crash in 0x0 environment (flutter/flutter#177546)
2025-11-02 ahmedsameha1@gmail.com Make sure that a LinearProgressIndicator doesn't crash in 0x0 environ… (flutter/flutter#177553)
2025-11-02 ahmedsameha1@gmail.com Make sure that a PopupMenuDivider doesn't crash in 0x0 environment (flutter/flutter#177445)
...
IvoneDjaja pushed a commit to IvoneDjaja/flutter that referenced this pull request Nov 22, 2025
@bkonyi @IvoneDjaja
[ Widget Preview ] Add analytic event that's reported when the previe…
9e6d5a0 
…wer is opened (flutter#177949)

With the addition of IDE support, the widget previewer is often started
by default by IDE plugins, even if users don't open the previewer. This
change adds an additional analytics event which is reported once the
widget preview application is loaded and connects to the DTD instance.

Fixes flutter#177948
reidbaker pushed a commit to AbdeMohlbi/flutter that referenced this pull request Dec 10, 2025
@bkonyi @reidbaker
[ Widget Preview ] Add analytic event that's reported when the previe…
a6d0eee 
…wer is opened (flutter#177949)

With the addition of IDE support, the widget previewer is often started
by default by IDE plugins, even if users don't open the previewer. This
change adds an additional analytics event which is reported once the
widget preview application is loaded and connects to the DTD instance.

Fixes flutter#177948
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Feb 11, 2026
@engine-flutter-autoroll
0359d52 [ Widget Preview ] Add analytic event that's reported when th…
79b0842 
…e previewer is opened (flutter/flutter#177949)
creatorpiyush pushed a commit to creatorpiyush/packages that referenced this pull request Jun 10, 2026
@engine-flutter-autoroll
Roll Flutter from 027f2e4 to e5d5c01 (73 revisions) (flutter#10362)
6ca3181 
Roll Flutter from 027f2e4 to e5d5c01 (73 revisions)

flutter/flutter@027f2e4...e5d5c01

2025-11-04 mdebbar@google.com [web] Upgrade Chrome to 141 (for engine tests) (flutter/flutter#177743)
2025-11-04 116356835+AbdeMohlbi@users.noreply.github.com Replace deprecated withOpacity in `chip_animation_style.0.dart‎`  example (flutter/flutter#177834)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 03612114a36d to c89b6118266b (1 revision) (flutter/flutter#177991)
2025-11-04 mdebbar@google.com [web] Delete unused futurize util (flutter/flutter#177861)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 1a179581af75 to 03612114a36d (1 revision) (flutter/flutter#177984)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 150f844e83fb to 1a179581af75 (3 revisions) (flutter/flutter#177979)
2025-11-04 engine-flutter-autoroll@skia.org Roll Dart SDK from 6f1bd8d05b1d to 156bf665dba4 (2 revisions) (flutter/flutter#177976)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 3990fc40acdf to 150f844e83fb (1 revision) (flutter/flutter#177964)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 85adfd3b8e75 to 3990fc40acdf (1 revision) (flutter/flutter#177962)
2025-11-04 34871572+gmackall@users.noreply.github.com Fix `isHeif` crash (flutter/flutter#177944)
2025-11-04 engine-flutter-autoroll@skia.org Roll Dart SDK from ac065fcd782e to 6f1bd8d05b1d (1 revision) (flutter/flutter#177955)
2025-11-04 engine-flutter-autoroll@skia.org Roll Skia from 001516d132f0 to 85adfd3b8e75 (4 revisions) (flutter/flutter#177958)
2025-11-04 bkonyi@google.com [ Widget Preview ] Add analytic event that's reported when the previewer is opened (flutter/flutter#177949)
2025-11-04 fluttergithubbot@gmail.com Marks Linux_pixel_7pro dynamic_path_stroke_tessellation_perf__timeline_summary to be unflaky (flutter/flutter#171144)
2025-11-03 engine-flutter-autoroll@skia.org Roll Skia from da9b8fb01101 to 001516d132f0 (6 revisions) (flutter/flutter#177951)
2025-11-03 97480502+b-luk@users.noreply.github.com Add FAQ entry about our attempts to remove Skia image codecs. (flutter/flutter#177947)
2025-11-03 jhy03261997@gmail.com Add blockAccessibilityFocus flag (flutter/flutter#175551)
2025-11-03 ahmedsameha1@gmail.com Make sure that a SnackBarAction doesn't crash in 0x0 environment (flutter/flutter#177899)
2025-11-03 ahmedsameha1@gmail.com Make sure that a SelectionArea doesn't crash in 0x0 environment (flutter/flutter#177876)
2025-11-03 34871572+gmackall@users.noreply.github.com Speculative fix for android_verified_input_test (flutter/flutter#177937)
2025-11-03 kjlubick@users.noreply.github.com [skia] Explicitly disable XPS backend (flutter/flutter#177050)
2025-11-03 engine-flutter-autoroll@skia.org Roll Dart SDK from 2d3aa1d5cb9f to ac065fcd782e (2 revisions) (flutter/flutter#177927)
2025-11-03 737941+loic-sharma@users.noreply.github.com Improve Impeller's docs in the top-level docs folder (flutter/flutter#177848)
2025-11-03 ahmedsameha1@gmail.com Make sure that GridTile doesn't crash in 0x0 environment (flutter/flutter#175321)
2025-11-03 ahmedsameha1@gmail.com Make sure that a Slider doesn't crash in 0x0 environment (flutter/flutter#177882)
2025-11-03 planetmarshall@users.noreply.github.com fix(impeller): fix params to glDiscardFrameBufferEXT (flutter/flutter#175589)
2025-11-03 engine-flutter-autoroll@skia.org Roll Skia from 56a10bf56ee0 to da9b8fb01101 (5 revisions) (flutter/flutter#177928)
2025-11-03 47866232+chunhtai@users.noreply.github.com wires up set application locale to web engine (flutter/flutter#177284)
2025-11-03 jesswon@google.com [Android 16] Update `linux_android_emu_unstable` to use avd rev 7 (flutter/flutter#177854)
2025-11-03 ahmedsameha1@gmail.com Make sure that a CheckedPopupMenuItem doesn't crash in 0x0 environment (flutter/flutter#177545)
2025-11-03 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from Ynp3qiXocK8WLTjlb... to vxK5obzfr1X9P2kSh... (flutter/flutter#177917)
2025-11-03 130006795+Spivak-adam@users.noreply.github.com Update pubspec.yaml.tmpl build version tracker on line 5 (flutter/flutter#173600)
2025-11-03 jason-simmons@users.noreply.github.com [Impeller] Fix the source rectangle used when rendering an AtlasContents with the strict mode for nine-patch images (flutter/flutter#177860)
2025-11-03 git@reb0.org docs: Default Splash / Loading screen for web app in index.html (flutter/flutter#177084)
2025-11-03 engine-flutter-autoroll@skia.org Roll Skia from 25e1e4e96980 to 56a10bf56ee0 (6 revisions) (flutter/flutter#177910)
2025-11-03 ahmedsameha1@gmail.com Make sure that a PopupMenuItem doesn't crash in 0x0 environment (flutter/flutter#177533)
2025-11-03 ahmedsameha1@gmail.com Make sure that a RefreshProgressIndicator doesn't crash in 0x0 enviro… (flutter/flutter#177556)
2025-11-03 ahmedsameha1@gmail.com Make sure that a PopupMenuButton doesn't crash in 0x0 environment (flutter/flutter#177493)
2025-11-03 ahmedsameha1@gmail.com Make sure that a CircularProgressIndicator doesn't crash in 0x0 envir… (flutter/flutter#177555)
2025-11-02 ahmedsameha1@gmail.com Make sure that a Radio doesn't crash in 0x0 environment (flutter/flutter#177580)
2025-11-02 ahmedsameha1@gmail.com Make sure that a RadioListTile doesn't crash in 0x0 environment (flutter/flutter#177576)
2025-11-02 ahmedsameha1@gmail.com Make sure that an ExpandIcon doesn't crash in 0x0 envrionment (flutter/flutter#175042)
2025-11-02 ahmedsameha1@gmail.com Make sure that a RangeSlider doesn't crash in 0x0 environment (flutter/flutter#177642)
2025-11-02 ahmedsameha1@gmail.com Make sure that a GridTileBar doesn't crash in 0x0 environment (flutter/flutter#177546)
2025-11-02 ahmedsameha1@gmail.com Make sure that a LinearProgressIndicator doesn't crash in 0x0 environ… (flutter/flutter#177553)
2025-11-02 ahmedsameha1@gmail.com Make sure that a PopupMenuDivider doesn't crash in 0x0 environment (flutter/flutter#177445)
...
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@nshahan nshahan nshahan approved these changes
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Report analytics event when the widget preview environment is opened

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@bkonyi @nshahan