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Bug 1762255 - Convert MobileViewport intrinric size to app units and use it in the comparison. r=botond,geckoview-reviewers,m_kato

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Differential Revision: https://phabricator.services.mozilla.com/D169288
This commit is contained in:
Hiroyuki Ikezoe 2023-02-28 02:54:05 +00:00
parent d884f32d2c
commit 9d1e021d6b
4 changed files with 50 additions and 4 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

11
layout/base/nsLayoutUtils.cpp
View file

@ -8147,7 +8147,11 @@ bool nsLayoutUtils::UpdateCompositionBoundsForRCDRSF(
if (shouldSubtractDynamicToolbar == SubtractDynamicToolbar::Yes) {
if (RefPtr<MobileViewportManager> MVM =
aPresContext->PresShell()->GetMobileViewportManager()) {
CSSSize intrinsicCompositionSize = MVM->GetIntrinsicCompositionSize();
// Convert the intrinsic composition size to app units here since
// the returned size of below CalculateScrollableRectForFrame call has
// been already converted/rounded to app units.
nsSize intrinsicCompositionSize =
CSSSize::ToAppUnits(MVM->GetIntrinsicCompositionSize());
if (nsIScrollableFrame* rootScrollableFrame =
aPresContext->PresShell()->GetRootScrollFrameAsScrollable()) {
@ -8156,9 +8160,8 @@ bool nsLayoutUtils::UpdateCompositionBoundsForRCDRSF(
// composition size (i.e. the dynamic toolbar should be able to move
// only if the content is vertically scrollable).
if (intrinsicCompositionSize.height <
CSSPixel::FromAppUnits(
CalculateScrollableRectForFrame(rootScrollableFrame, nullptr)
.Height())) {
CalculateScrollableRectForFrame(rootScrollableFrame, nullptr)
.Height()) {
shouldSubtractDynamicToolbar = SubtractDynamicToolbar::No;
}
}

5
mobile/android/geckoview/src/androidTest/assets/www/no-meta-viewport.html Normal file
View file

@ -0,0 +1,5 @@
<!DOCTYPE html>
<html>
<meta charset="utf-8">
<h3>Nothing here</h3>
</html>

1
mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/BaseSessionTest.kt
View file

@ -123,6 +123,7 @@ open class BaseSessionTest(noErrorCollector: Boolean = false) {
const val COLOR_ORANGE_BACKGROUND_HTML_PATH = "/assets/www/color_orange_background.html"
const val TRACEMONKEY_PDF_PATH = "/assets/www/tracemonkey.pdf"
const val HELLO_PDF_WORLD_PDF_PATH = "/assets/www/helloPDFWorld.pdf"
const val NO_META_VIEWPORT_HTML_PATH = "/assets/www/no-meta-viewport.html"
const val TEST_ENDPOINT = GeckoSessionTestRule.TEST_ENDPOINT
const val TEST_HOST = GeckoSessionTestRule.TEST_HOST

37
mobile/android/geckoview/src/androidTest/java/org/mozilla/geckoview/test/InputResultDetailTest.kt
View file

@ -377,4 +377,41 @@ class InputResultDetailTest : BaseSessionTest() {
)
}
}
// Tests a situation where converting a scrollport size between CSS units and app units will
// result different values, and the difference causes an issue that unscrollable documents
// behave as if it's scrollable.
//
// Note about metrics that this test uses.
// A basic here is that documents having no meta viewport tags are laid out on 980px width
// canvas, the 980px is defined as "browser.viewport.desktopWidth".
//
// So, if the device screen size is (1080px, 2160px) then the document is scaled to
// (1080 / 980) = 1.10204. Then if the dynamic toolbar height is 59px, the scaled document
// height is (2160 - 59) / 1.10204 = 1906.46 (in CSS units). It's converted and actually rounded
// to 114388 (= 1906.46 * 60) in app units. And it's converted back to 1906.47 (114388 / 60) in
// CSS units unfortunately.
@WithDisplay(width = 1080, height = 2160)
@Test
fun testFractionalScrollPortSize() {
sessionRule.setPrefsUntilTestEnd(
mapOf(
"browser.viewport.desktopWidth" to 980
)
)
sessionRule.display?.run { setDynamicToolbarMaxHeight(59) }
setupDocument(NO_META_VIEWPORT_HTML_PATH)
// Try to scroll down to see if the document is scrollable or not.
var value = sessionRule.waitForResult(sendDownEvent(50f, 50f))
assertResultDetail(
"The document isn't not scrollable at all",
value,
PanZoomController.INPUT_RESULT_UNHANDLED,
PanZoomController.SCROLLABLE_FLAG_NONE,
(PanZoomController.OVERSCROLL_FLAG_HORIZONTAL or PanZoomController.OVERSCROLL_FLAG_VERTICAL)
)
}
}