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fix: on macOS show BrowserWindow on maximize if not currently shown #33535

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Apr 4, 2022
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12 changes: 11 additions & 1 deletion shell/browser/native_window_mac.mm
Original file line number Diff line number Diff line change
Expand Up @@ -602,13 +602,23 @@ void ViewDidMoveToSuperview(NSView* self, SEL _cmd) {
}

void NativeWindowMac::Maximize() {
if (IsMaximized())
const bool is_visible = [window_ isVisible];

if (IsMaximized()) {
if (!is_visible)
ShowInactive();
return;
}

// Take note of the current window size
if (IsNormal())
original_frame_ = [window_ frame];
[window_ zoom:nil];

if (!is_visible) {
ShowInactive();
NotifyWindowMaximize();
}
}

void NativeWindowMac::Unmaximize() {
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10 changes: 6 additions & 4 deletions spec-main/api-browser-window-spec.ts
Original file line number Diff line number Diff line change
Expand Up @@ -3553,22 +3553,24 @@ describe('BrowserWindow module', () => {
// TODO(dsanders11): Enable once maximize event works on Linux again on CI
ifdescribe(process.platform !== 'linux')('BrowserWindow.maximize()', () => {
afterEach(closeAllWindows);
// TODO(dsanders11): Disabled on macOS, see https://github.com/electron/electron/issues/32947
ifit(process.platform !== 'darwin')('should show the window if it is not currently shown', async () => {
it('should show the window if it is not currently shown', async () => {
const w = new BrowserWindow({ show: false });
const hidden = emittedOnce(w, 'hide');
const shown = emittedOnce(w, 'show');
let shown = emittedOnce(w, 'show');
const maximize = emittedOnce(w, 'maximize');
expect(w.isVisible()).to.be.false('visible');
w.maximize();
await maximize;
await shown;
expect(w.isMaximized()).to.be.true('maximized');
expect(w.isVisible()).to.be.true('visible');
// Even if the window is already maximized
w.hide();
await hidden;
expect(w.isVisible()).to.be.false('visible');
shown = emittedOnce(w, 'show');
w.maximize();
await shown; // Ensure a 'show' event happens when it becomes visible
await shown;
expect(w.isVisible()).to.be.true('visible');
});
});
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