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Issue #1705 - Part 8: Implement scrollbar-width:thin on GTK.

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This commit is contained in:
Moonchild
2021-01-09 23:20:31 +00:00
parent 382fe423e5
commit ecc771848f
1 changed files with 54 additions and 24 deletions
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widget/gtk/nsNativeThemeGTK.cpp
+54 -24
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@@ -1098,6 +1098,12 @@ nsNativeThemeGTK::GetExtraSizeForWidget(nsIFrame* aFrame, uint8_t aWidgetType,
return true;
}
static bool
IsScrollbarWidthThin(nsIFrame* aFrame)
{
return aFrame->StyleUserInterface()->mScrollbarWidth == StyleScrollbarWidth::Thin;
}
NS_IMETHODIMP
nsNativeThemeGTK::DrawWidgetBackground(nsRenderingContext* aContext,
nsIFrame* aFrame,
@@ -1419,32 +1425,39 @@ nsNativeThemeGTK::GetMinimumWidgetSize(nsPresContext* aPresContext,
case NS_THEME_SCROLLBARBUTTON_UP:
case NS_THEME_SCROLLBARBUTTON_DOWN:
{
if (gtk_check_version(3,20,0) == nullptr) {
moz_gtk_get_widget_min_size(MOZ_GTK_SCROLLBAR_BUTTON,
&(aResult->width), &(aResult->height));
} else {
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
if (!IsScrollbarWidthThin(aFrame)) {
// Get scrollbar button metrics from the system, except in the case of
// thin scrollbars, where we leave them at 0 (collapse)
if (gtk_check_version(3,20,0) == nullptr) {
moz_gtk_get_widget_min_size(MOZ_GTK_SCROLLBAR_BUTTON,
&(aResult->width), &(aResult->height));
} else {
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
aResult->width = metrics.slider_width;
aResult->height = metrics.stepper_size;
aResult->width = metrics.slider_width;
aResult->height = metrics.stepper_size;
}
}
*aIsOverridable = false;
}
break;
case NS_THEME_SCROLLBARBUTTON_LEFT:
case NS_THEME_SCROLLBARBUTTON_RIGHT:
{
if (gtk_check_version(3,20,0) == nullptr) {
moz_gtk_get_widget_min_size(MOZ_GTK_SCROLLBAR_BUTTON,
&(aResult->width), &(aResult->height));
} else {
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
if (!IsScrollbarWidthThin(aFrame)) {
// Get scrollbar button metrics from the system, except in the case of
// thin scrollbars, where we leave them at 0 (collapse)
if (gtk_check_version(3,20,0) == nullptr) {
moz_gtk_get_widget_min_size(MOZ_GTK_SCROLLBAR_BUTTON,
&(aResult->width), &(aResult->height));
} else {
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
aResult->width = metrics.stepper_size;
aResult->height = metrics.slider_width;
aResult->width = metrics.stepper_size;
aResult->height = metrics.slider_width;
}
}
*aIsOverridable = false;
}
@@ -1514,6 +1527,24 @@ nsNativeThemeGTK::GetMinimumWidgetSize(nsPresContext* aPresContext,
}
break;
case NS_THEME_SCROLLBARTHUMB_VERTICAL:
{
if (gtk_check_version(3,20,0) == nullptr) {
moz_gtk_get_widget_min_size(NativeThemeToGtkTheme(aWidgetType, aFrame),
&(aResult->width), &(aResult->height));
} else {
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
aResult->width = metrics.slider_width;
aResult->height = metrics.min_slider_size;
}
if (IsScrollbarWidthThin(aFrame)) {
// If thin scrollbars, divide the thickness by 3
aResult->width /= 3;
}
*aIsOverridable = false;
}
break;
case NS_THEME_SCROLLBARTHUMB_HORIZONTAL:
{
if (gtk_check_version(3,20,0) == nullptr) {
@@ -1523,13 +1554,12 @@ nsNativeThemeGTK::GetMinimumWidgetSize(nsPresContext* aPresContext,
MozGtkScrollbarMetrics metrics;
moz_gtk_get_scrollbar_metrics(&metrics);
if (aWidgetType == NS_THEME_SCROLLBARTHUMB_VERTICAL) {
aResult->width = metrics.slider_width;
aResult->height = metrics.min_slider_size;
} else {
aResult->height = metrics.slider_width;
aResult->width = metrics.min_slider_size;
}
aResult->height = metrics.slider_width;
aResult->width = metrics.min_slider_size;
}
if (IsScrollbarWidthThin(aFrame)) {
// If thin scrollbars, divide the thickness by 3
aResult->height /= 3;
}
*aIsOverridable = false;
}