@Override
protected void updateSceneLayer(
Rect viewport,
Rect contentViewport,
LayerTitleCache layerTitleCache,
TabContentManager tabContentManager,
ResourceManager resourceManager,
ChromeFullscreenManager fullscreenManager) {
super.updateSceneLayer(
viewport,
contentViewport,
layerTitleCache,
tabContentManager,
resourceManager,
fullscreenManager);
assert mSceneLayer != null;
final LayoutTab[] tabs = getLayoutTabsToRender();
if (tabs == null || tabs.length != 1 || tabs[0].getId() == Tab.INVALID_TAB_ID) {
return;
}
LayoutTab layoutTab = tabs[0];
final float dpToPx = getContext().getResources().getDisplayMetrics().density;
mReaderModeSceneLayer.update(mReaderModePanel, resourceManager);
mSceneLayer.update(
dpToPx, contentViewport, layerTitleCache, tabContentManager, fullscreenManager, layoutTab);
// TODO(pedrosimonetti): Coordinate w/ dtrainor@ to improve integration with TreeProvider.
SceneLayer overlayLayer = null;
if (mSearchPanel.isShowing()) {
overlayLayer = super.getSceneLayer();
} else if (mReaderModePanel != null && mReaderModePanel.isShowing()) {
overlayLayer = mReaderModeSceneLayer;
}
mSceneLayer.setContentSceneLayer(overlayLayer);
// TODO(dtrainor): Find the best way to properly track this metric for cold starts.
// We should probably erase the thumbnail when we select a tab that we need to restore.
if (tabContentManager != null && tabContentManager.hasFullCachedThumbnail(layoutTab.getId())) {
TabModelBase.logPerceivedTabSwitchLatencyMetric();
}
}
private void cacheTabBitmap(Tab tabToCache) {
// Trigger a capture of this tab.
if (tabToCache == null) return;
mTabContentManager.cacheTabThumbnail(tabToCache);
}