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fix: error if a11y support changed before ready (#16261)

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This commit is contained in:
Shelley Vohr 2019-01-04 07:20:06 -08:00 • committed by John Kleinschmidt
commit de0e4735de
3 changed files with 12 additions and 3 deletions
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9
atom/browser/api/atom_api_app.cc
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@ -1022,7 +1022,14 @@ bool App::IsAccessibilitySupportEnabled() {
return ax_state->IsAccessibleBrowser();
}
void App::SetAccessibilitySupportEnabled(bool enabled) {
void App::SetAccessibilitySupportEnabled(bool enabled, mate::Arguments* args) {
if (!Browser::Get()->is_ready()) {
args->ThrowError(
"app.setAccessibilitySupportEnabled() can only be called "
"after app is ready");
return;
}
auto* ax_state = content::BrowserAccessibilityState::GetInstance();
if (enabled) {
ax_state->OnScreenReaderDetected();

2
atom/browser/api/atom_api_app.h
View file

@ -192,7 +192,7 @@ class App : public AtomBrowserClient::Delegate,
void DisableHardwareAcceleration(mate::Arguments* args);
void DisableDomainBlockingFor3DAPIs(mate::Arguments* args);
bool IsAccessibilitySupportEnabled();
void SetAccessibilitySupportEnabled(bool enabled);
void SetAccessibilitySupportEnabled(bool enabled, mate::Arguments* args);
Browser::LoginItemSettings GetLoginItemSettings(mate::Arguments* args);
#if defined(USE_NSS_CERTS)
void ImportCertificate(const base::DictionaryValue& options,

4
docs/api/app.md
View file

@ -1098,9 +1098,11 @@ details.
* `enabled` Boolean - Enable or disable [accessibility tree](https://developers.google.com/web/fundamentals/accessibility/semantics-builtin/the-accessibility-tree) rendering
Manually enables Chrome's accessibility support, allowing to expose accessibility switch to users in application settings. https://www.chromium.org/developers/design-documents/accessibility for more
Manually enables Chrome's accessibility support, allowing to expose accessibility switch to users in application settings. See [Chromium's accessibility docs](https://www.chromium.org/developers/design-documents/accessibility) for more
details. Disabled by default.
This API must be called after the `ready` event is emitted.
**Note:** Rendering accessibility tree can significantly affect the performance of your app. It should not be enabled by default.
### `app.showAboutPanel` _macOS_ _Linux_