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fix: BrowserWindow.setBackgroundColor should work with transparency (#42824)

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fix: BrowserWindow.setBackgroundColor should work with transparency
This commit is contained in:
Shelley Vohr 2024-07-16 20:11:49 +02:00 committed by GitHub
parent 81351dd1a9
commit cbd11bb605
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GPG key ID: B5690EEEBB952194
2 changed files with 35 additions and 12 deletions
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5
shell/browser/api/electron_api_web_contents.cc
View file

@ -3729,14 +3729,17 @@ void WebContents::SetBackgroundColor(std::optional<SkColor> maybe_color) {
type_ == Type::kBrowserView
? SK_ColorTRANSPARENT
: SK_ColorWHITE);
bool is_opaque = SkColorGetA(color) == SK_AlphaOPAQUE;
web_contents()->SetPageBaseBackgroundColor(color);
content::RenderFrameHost* rfh = web_contents()->GetPrimaryMainFrame();
if (!rfh)
return;
content::RenderWidgetHostView* rwhv = rfh->GetView();
if (rwhv) {
rwhv->SetBackgroundColor(color);
// RenderWidgetHostView doesn't allow setting an alpha that's not 0 or 255.
rwhv->SetBackgroundColor(is_opaque ? color : SK_ColorTRANSPARENT);
static_cast<content::RenderWidgetHostViewBase*>(rwhv)
->SetContentBackgroundColor(color);
}

42
spec/api-browser-window-spec.ts
View file

@ -1660,6 +1660,7 @@ describe('BrowserWindow module', () => {
w = new BrowserWindow({});
expect(w.getBackgroundColor()).to.equal('#FFFFFF');
});
it('returns correct value if backgroundColor is set', () => {
const backgroundColor = '#BBAAFF';
w.destroy();
@ -1668,6 +1669,7 @@ describe('BrowserWindow module', () => {
});
expect(w.getBackgroundColor()).to.equal(backgroundColor);
});
it('returns correct value from setBackgroundColor()', () => {
const backgroundColor = '#AABBFF';
w.destroy();
@ -1675,24 +1677,42 @@ describe('BrowserWindow module', () => {
w.setBackgroundColor(backgroundColor);
expect(w.getBackgroundColor()).to.equal(backgroundColor);
});
it('returns correct color with multiple passed formats', () => {
it('returns correct color with multiple passed formats', async () => {
w.destroy();
w = new BrowserWindow({});
w.setBackgroundColor('#AABBFF');
expect(w.getBackgroundColor()).to.equal('#AABBFF');
await w.loadURL('about:blank');
w.setBackgroundColor('blueviolet');
expect(w.getBackgroundColor()).to.equal('#8A2BE2');
const colors = new Map([
['blueviolet', '#8A2BE2'],
['rgb(255, 0, 185)', '#FF00B9'],
['hsl(155, 100%, 50%)', '#00FF95'],
['#355E3B', '#355E3B']
]);
w.setBackgroundColor('rgb(255, 0, 185)');
expect(w.getBackgroundColor()).to.equal('#FF00B9');
for (const [color, hex] of colors) {
w.setBackgroundColor(color);
expect(w.getBackgroundColor()).to.equal(hex);
}
});
w.setBackgroundColor('rgba(245, 40, 145, 0.8)');
expect(w.getBackgroundColor()).to.equal('#F52891');
it('can set the background color with transparency', async () => {
w.destroy();
w = new BrowserWindow({});
w.setBackgroundColor('hsl(155, 100%, 50%)');
expect(w.getBackgroundColor()).to.equal('#00FF95');
await w.loadURL('about:blank');
const colors = new Map([
['hsl(155, 100%, 50%)', '#00FF95'],
['rgba(245, 40, 145, 0.8)', '#F52891'],
['#1D1F21d9', '#1F21D9']
]);
for (const [color, hex] of colors) {
w.setBackgroundColor(color);
expect(w.getBackgroundColor()).to.equal(hex);
}
});
});