[V3] Windows: fix(application): handle error and type assertion in save file dialog #4284
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WalkthroughThe changes introduce improved error handling for the Windows SaveFileDialog, specifically addressing cases where the dialog is cancelled or closed. The modifications ensure that errors are correctly propagated and handled, preventing application crashes. Documentation is updated to reflect the fix for the panic issue when cancelling the dialog. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Application
participant SaveFileDialog
participant OS
User->>Application: Initiate SaveFileDialog
Application->>SaveFileDialog: show()
SaveFileDialog->>OS: showCfdDialog()
OS-->>SaveFileDialog: Return result or error
alt Error or Cancelled
SaveFileDialog->>Application: Return closed channel, error
else Success
SaveFileDialog->>Application: Send result (string) on channel
end
Assessment against linked issues
Assessment against linked issues: Out-of-scope changesNo out-of-scope changes found. Possibly related PRs
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🧹 Nitpick comments (1)
website/src/pages/changelog.mdx (1)
19-19: Good documentation of the fix in the changelog.The changelog entry clearly describes the issue that was fixed and references the PR number. This helps users and developers understand what was addressed in this release.
Note: "Windows" should be capitalized as it refers to the operating system.
- Fixed panic when closing or cancelling a `SaveFileDialog` on windows. Fixed in [PR](https://github.com/wailsapp/wails/pull/4284) + Fixed panic when closing or cancelling a `SaveFileDialog` on Windows. Fixed in [PR](https://github.com/wailsapp/wails/pull/4284)🧰 Tools
🪛 LanguageTool
[grammar] ~19-~19: “Windows” (operating system by Microsoft) is a proper noun and needs to be capitalized.
Context: ...ing or cancelling aSaveFileDialogon windows. Fixed in [PR](https://github.com/wails...(A_WINDOWS)
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📒 Files selected for processing (3)
v3/internal/go-common-file-dialog/cfd/vtblCommonFunc.go(2 hunks)v3/pkg/application/dialogs_windows.go(1 hunks)website/src/pages/changelog.mdx(1 hunks)
🧰 Additional context used
🪛 LanguageTool
website/src/pages/changelog.mdx
[grammar] ~19-~19: “Windows” (operating system by Microsoft) is a proper noun and needs to be capitalized.
Context: ...ing or cancelling a SaveFileDialog on windows. Fixed in [PR](https://github.com/wails...
(A_WINDOWS)
🔇 Additional comments (3)
v3/internal/go-common-file-dialog/cfd/vtblCommonFunc.go (1)
171-173: Improved error handling with specific error type.This change enhances error handling by returning a specific
ErrorCancellederror rather than a generic error message. This is a better practice as it allows calling code to check for specific error types rather than parsing error strings.v3/pkg/application/dialogs_windows.go (2)
199-202: Fixed potential resource leak by properly handling errors.This is a critical fix that properly handles errors from
showCfdDialogby closing the channel and returning early. Previously, an error could have resulted in a resource leak or incorrect behavior because the channel wouldn't be properly closed.
205-208: Added type safety to prevent panic on invalid type assertion.This change adds proper type assertion with a check, preventing a potential panic if the result is not of the expected type. This is good defensive programming that makes the code more robust against unexpected scenarios.
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🧹 Nitpick comments (1)
docs/src/content/docs/changelog.mdx (1)
131-131: Capitalize “Windows” and align entry style.The new fix entry currently reads “on windows.” Windows is a proper noun and should be capitalized. Also for consistency with other OS‐specific entries, consider adding the ⊞ badge and using the
[#4284]PR reference style:- - Fixed panic when closing or cancelling a `SaveFileDialog` on windows. Fixed in [PR](https://github.com/wailsapp/wails/pull/4284) by @hkhere + - ⊞ Fixed panic when closing or cancelling a `SaveFileDialog` on Windows. Fixed in [#4284](https://github.com/wailsapp/wails/pull/4284) by @hkhere🧰 Tools
🪛 LanguageTool
[grammar] ~131-~131: “Windows” (operating system by Microsoft) is a proper noun and needs to be capitalized.
Context: ...ing or cancelling aSaveFileDialogon windows. Fixed in [PR](https://github.com/wails...(A_WINDOWS)
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Configuration used: .coderabbit.yaml
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (1)
docs/src/content/docs/changelog.mdx(2 hunks)
🧰 Additional context used
🪛 LanguageTool
docs/src/content/docs/changelog.mdx
[grammar] ~131-~131: “Windows” (operating system by Microsoft) is a proper noun and needs to be capitalized.
Context: ...ing or cancelling a SaveFileDialog on windows. Fixed in [PR](https://github.com/wails...
(A_WINDOWS)
|
Description
This fixes a failure when closing or cancelling a
SaveFileDialogon windows.Ensure the save file dialog properly handles errors and safely asserts the result type to avoid potential runtime panics. Additionally, improve error handling in the file dialog result retrieval to return a specific error when the operation is cancelled.
Fixes #4279
Type of change
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How Has This Been Tested?
Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration using
wails doctor.If you checked Linux, please specify the distro and version.
Test Configuration
Please paste the output of
wails doctor. If you are unable to run this command, please describe your environment in as much detail as possible.Checklist:
website/src/pages/changelog.mdxwith details of this PRSummary by CodeRabbit
Bug Fixes
Documentation