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http://b/issue?id=1918891
set cursor node hidden to 'true' to hide it
also fixing crash if detecting text address
runs out of text to look at
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WebViewCore.cpp:
Add parameter to CachedRoot::findAt to suppress check for
hidden nodes. This helps find a best match for newly built
nav caches.
Require that the new cursor node closely match the bounds
of the prior cursor node. This may need tuning.
CacheBuilder.cpp:
Remove isInput flag on cached nodes (no longer used)
CachedFrame.cpp:
Add hideCursor to complement clearCursor. Hide prevents
the cursor from drawing but does not move it. Clear removes
it altogether so that the next movement starts from the viewPort
edge.
CachedHistory.cpp:
Don't special case text fields when doing history navigation.
This special casing in part allowed setting the focus to
the homepage input, but since focus is no longer set by nav,
it is not required.
CachedNode.cpp:
Add hideCursor; clean up debugging
CachedRoot.cpp:
Use navBounds from history instead of cursor bounds to
determine next move. Clean up some obsolete code.
WebView.cpp:
Add hideCursor; call it when appropriate.
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Older code treated the trackball as a four way dpad with
equivalents to moving up, down, left and right by generating
arrow key events. This change makes the trackball solely
generate mousemove events.
The old arrow keys in turn were mapped to be as close as
possible to tab-key events that moved the focus. The new
model leaves focus-changes to the DOM.
Clicking the dpad is distinguished from pressing the enter
key to be more compatible with desktop-authored web pages.
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Check to see if the potentially larger hit-test bounds
can be used in place of the normal bounds, or if the
normal bounds can be used in place of the individual
text bounds.
Construct a region out of the individual focus ring
rectangles, then see if any text is drawn inside the
bounds but outside of the focus ring. If not, use one
rectangle instead of the rings.
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