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fix: ensure bounds stability in OnWidgetBoundsChanged (#43644)

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fix: ensure bounds stability in OnWidgetBoundsChanged
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Shelley Vohr 2024-09-10 02:35:29 +02:00 committed by GitHub
parent f74c353abf
commit 01ef05580f
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1 changed files with 12 additions and 3 deletions
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15
shell/browser/native_window_views.cc
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@ -22,6 +22,7 @@
#include "base/containers/contains.h"
#include "base/memory/raw_ptr.h"
#include "base/numerics/ranges.h"
#include "base/stl_util.h"
#include "base/strings/utf_string_conversions.h"
#include "content/public/browser/browser_thread.h"
@ -1644,10 +1645,18 @@ void NativeWindowViews::OnWidgetBoundsChanged(views::Widget* changed_widget,
if (changed_widget != widget())
return;
// Note: We intentionally use `GetBounds()` instead of `bounds` to properly
// handle minimized windows on Windows.
// |GetWindowBoundsInScreen| has a ~1 pixel margin of error, so if we check
// existing bounds directly against the new bounds without accounting for that
// we'll have constant false positives when the window is moving but the user
// hasn't changed its size at all.
auto areWithinOnePixel = [](gfx::Size old_size, gfx::Size new_size) -> bool {
return base::IsApproximatelyEqual(old_size.width(), new_size.width(), 1) &&
base::IsApproximatelyEqual(old_size.height(), new_size.height(), 1);
};
// We use |GetBounds| to account for minimized windows on Windows.
const auto new_bounds = GetBounds();
if (widget_size_ != new_bounds.size()) {
if (!areWithinOnePixel(widget_size_, new_bounds.size())) {
NotifyWindowResize();
widget_size_ = new_bounds.size();
}