| Commit message (Collapse) | Author | Age | Files | Lines |
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EventHandler:
* Added IgnoreClipping in order to touch nodes that are clipped
out.
android_graphics:
* Remember the absolute bounds of the node for invals.
RenderBox:
* Fix a compiler warning.
RenderLayer:
* Do not record the entire layer contents unless the scroll
dimensions are larger than the client dimensions.
* Change isSelfPaintingLayer to check for an overflow clip
instead of the scrollable dimensions since it can be too
early to check at this point.
RenderLayerCompositor:
* Same as RenderLayer for checking the overflow clip.
WebViewCore:
* Scroll the containing layer to the node bounds and offset the
mouse position if scrolled. Once the mouse event is processed,
restore the layer to 0,0.
CacheBuilder:
* The body position is no longer used.
* Do not clip out nodes if the layer is scrollable.
CachedFrame:
* Add unadjustBounds to restore adjusted bounds to their original
position (fixed position elements).
* Call unadjustBounds when a node has been found. This new set of
bounds is passed over to WebViewCore to handle clicks.
* Reject empty node bounds.
CachedLayer:
* Document adjustBounds and add unadjustBounds. Add in the scroll
position to the node bounds.
CachedRoot:
* Unadjust the mouse bounds.
WebView:
* Unadjust the mouse bounds and use the absolute bounds of the ring
during inval.
Bug: 1566791
Change-Id: Ia55f2cbb61869087176d3ff61882e40324614c6a
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This reverts commit 0ed6485271097ecf1b4cf4e790f9cfdbb57d921c.
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This allows web pages to have fine-grain control over the appearance
of the rings drawn around nodes.
Generated links (email, addresses, phone numbers) are no longer
given unique colors. To preserve this feature, a separate change
could add an HTML extension similar to vlink to provide the cursor
ring defintions for theses links. The mechanism implemented below
isn't appropriate since these links don't necessarily correspond to
single DOM nodes or other DOM elements.
------------
CSS examples
------------
The CSS to specify the ring looks like:
-webkit-ring-fill-color:rgba(0,0,255,0.4);
-webkit-ring-inner-width:2 px;
-webkit-ring-outer-width:3.5 px;
-webkit-ring-outset: 8 px;
-webkit-ring-pressed-inner-color:rgba(0,0,255,0.8);
-webkit-ring-pressed-outer-color:rgba(0,0,127,0.3);
-webkit-ring-radius: 10 px;
-webkit-ring-selected-inner-color:rgba(63,63,255,0.8);
-webkit-ring-selected-outer-color:rgba(63,63,127,0.3);
and may be alternately defined with a property shortcut:
-webkit-ring:rgba(255,0,0,0.4) 5px 7px
rgba(255,0,0,0.8) rgba(127,0,0,0.3) 20px
rgba(255,63,63,0.8) rgba(127,63,63,0.3);
--------------------
Property definitions
--------------------
A vertical cross-section of the ring corresponds to these
parameters as shown:
______
R / ___O_ R = corner radius
/ / __I_ o I = inner ring
/ / / _O_ ^ O = outer ring
| | | / F | F = fill
|O|I|O| L o = outset
| | | \_F_ | L = original link
\ \ \__O_ V
\ \___I_ o
R \____O_
The fill color specifies what to draw inside the ring
when the link is followed. The fill area consists of the
original link area the outset.
The inner and outer widths specify the stoke width of the inner
and outer rings, respectively. The widths may be specified in
fractional pixels. The implementation captures 4 bits of the
fraction.
The outset specifies the distance from the edge of the original
link to the rings' center. Both rings are drawn at the same center
location.
The radius specifies the curvature of the corners at the center
of the rings.
-------------
Data lifetime
-------------
The selected colors specify the colors of the inner and outer
rings when the trackball or D-pad hovers over the link. The
pressed colors specify the colors of the rings when the
trackball center is pressed or the link is tapped.
The CSS data is recorded in the RenderStyle when the DOM
is parsed. The widths are scaled up by 16 to preserve the fraction.
When the nav cache is built, the CSS style information is
recorded in the CachedColor class. Only unique style sets
are recorded; many CachedNode instances can share the same
CachedColor instance.
When the cursor ring is drawn, the CachedColor is
retrieved by getting the index from the CachedNode, and
looking up the entry in the CachedFrame. The widths are
scaled down by 16 since Lengths are stored by the webkit as
integers.
----------
File Edits
----------
WebCore/Android.derived.mk
- Build the CSS data property tables by concatentating
Android specific data and optionally SVG data.
WebCore/config.h
- Add switch for these rings. This switch is meant
as a convenience for finding the code in WebKit
that was added to enable this feature. Since the
old code in DrawCursor has been removed, it does
not revert to the old behavior if the switch is
turned off.
WebCore/css/AndroidCSSPropertyNames.in
- The new ring properties, plus an old one we
added before.
WebCore/css/CSSComputedStyleDeclaration.cpp
WebCore/css/CSSMutableStyleDeclaration.cpp
WebCore/css/CSSParser.cpp
WebCore/css/CSSStyleSelector.cpp
- I can guess what these functions are for as
well as anyone, but I really don't know. Do
I need all of them? Do I need to modify
Mutable at all?
WebCore/css/CSSPropertyNames.in
- Moved Android addition to AndroidCSSPropertyNames.in
WebCore/platform/graphics/Color.h
- Added initial color values here.
WebCore/platform/graphics/android/android_graphics.*
- This draws the cursor ring. The code that draws
'synthetic' links has been discarded.
WebCore/rendering/style/RenderStyle.h
- Functions to get, set, and initialize the style
data.
WebCore/rendering/style/StyleRareInheritedData.*
- The storage for the style data and an equivalence
function.
WebKit/Android.mk
- Added CachedColor to the build.
WebKit/android/nav/CacheBuilder.cpp
- Record the color from the DOM into the cache.
WebKit/android/nav/CachedColor.*
- Store the cached color info.
WebKit/android/nav/CachedFrame.*
- Where the array of colors is stored.
WebKit/android/nav/CachedNode.*
- Where the index to the colors is stored.
Change-Id: Ia3a931f41d6545e47678e245aafe7c84d4658f94
http://b/2603197
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Rewrote nextTextField() to check range and frame, and
to more resemble other node walkers.
Caller no longer passes uninitialized frame in focused
case, and looks at parent frames after the target node.
Change-Id: I7ea9dffb75d28bdd9d71d83921058feca6baf928
http://b/2607250
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The hit test on the nav cache returns a node/frame pair.
It looks for the closest hit, but gives priority to a direct
hit. Track the frame associated with the direct hit
separately, so that the correct node/frame pair is returned.
Change-Id: Icb1e3de4a0aad3c6dd9b2b81669f9c7bbb260282
http://b/2316138
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If a cache node is both in a layer and contains a layer, don't
add it the second time.
Change-Id: I45cc302e234565bfbc87649ca503f515b1f487e8
http://b/2543736
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Also no longer differentiate between textfields and areas for the purpose
of the next action.
Part of fix for http://b/issue?id=2478052
Requires a change to frameworks/base
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Drawing elements that appear atop or below layers need to be
drawn both in the proper order and with the correct canvas to
respect clipping and the matrix.
Drawing the find results, text selection, or the cursor ring,
interleaves with any layers that may be drawn. The main picture
is treated as owned by a LayerAndroid so each component can
decide when to draw.
This change leave the main picture in WebViewCore.cpp, and
draws everything else in WebView.cpp -- in the future, additional
refactoring can put all drawing in one place.
The logic of what to draw is still in WebView.java, but the
actual drawing calls are now triggered inside the layer code.
Android.mk
- Add rule to trigger building without layers from buildspec.mk.
LayerAndroid.*
- Replace FindOnPage reference with abstract DrawExtra class to
draw adornments in the layers' canvas context.
- Add a LayerAndroid constructor to create a dummy layer with a
SkPicture* and a uniqueId==-1 so that extras can detect when
they are drawn by the main picture.
android_graphics.*
- Move cursor ring drawing out of WebView.cpp to here.
- Separate cursor ring setup from actual drawing.
- Get the cursor ring metrics in local coordinates.
ChromeClientAndroid.cpp
- Fix compiler warnings.
WebViewCore.*
- Move updateCursorBounds from WebView.cpp. This permits it to
be called from CursorRing::setup.
CachedFrame.*
CachedNode.*
CachedLayer.*
- Add local bounds getters.
CachedRoot.h
- Move class FindCanvas to the android namespace.
DrawExtra.h
- Add an abstract class called by LayerAndroid to optionally
draw extra elements in its canvas context.
FindCanvas.*
SelectText.*
- Refactor drawing to draw in layers context.
WebView.cpp
- Move drawing from WebView.java.
- Remove selection code to SelectText.cpp.
- Use inverseScale to simplify viewPort metrics.
- Simplify layer root so java doesn't need to know about it.
Requires companion change in frameworks/base
http://b/2457316
http://b/2454127
http://b/2454149
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companion fix is in framework/base
With fixed layers, parts of the web page are now
in motion relative to the document when the page
scrolls. Many routines that formerly read static
coordinates need to compute locations. In some cases,
new computations are cached for speed -- for instance,
the current cursor position is cached when it is
frequently compared.
The cursor rings and other drawing elements like
finding text on the page now to be drawn in the correct
order so that they appear both under and over layers.
There's quite a bit more work to be done. Major
pieces are drawing the text selection in the correct
order, and computing locations based on nest layers.
With this checkin, only the position of the child-
most layer is considered when computing bounds.
http://b/2369549
JavaScriptCore/wtf/Platform.h
- Turn compositing on. All routines that
reference LayerAndroid are bracketed by this
condition.
WebCore/platform/graphics/android/LayerAndroid.h
WebCore/platform/graphics/android/LayerAndroid.cpp
- Add a unique id to each layer. The unique id is
used to associate a layer created when the DOM is
parsed in the webkit thread with its copy in the
UI thread.
- Add: draw the text found on the page, as a call
out in the primary draw. The call out must follow
the drawing the layers' contents to show the found
text correctly. Note that this adds a new slot with
identical contents in every child LayerAndroid. In
a future optimization, a RootLayerAndroid could hold
data common for all child layers.
- Add: clipArea(), which returns an array of rectangles
describing the clip for this LayerAndroid and its
children. Generally, this is the part of the webpage
which is covered by one or more fixed layers.
- Add: find(FloatPoint) that returns the deepest layer
that contains this point. This is used to match taps
to the layer that is tapped on.
- Add: draw all layer pictures and identify
which layer is being drawn. This is used to analyze
the picture contents for finding and selecting text.
- Add: find the layer that matches a given id; this is
used to map cached DOM node data back to the layer
that contains it.
- Fix up includes, delete unused interfaces
WebKit/android/jni/WebViewCore.h
WebKit/android/jni/WebViewCore.cpp
- Remove local mRootLayer; use the one in WebView.cpp
instead (which is in sync with WebView.java)
WebKit/Android.mk
WebKit/android/nav/CachedLayer.h
WebKit/android/nav/CachedLayer.cpp
- CacheLayer associates the cached node with the
LayerAndroid instance. It contains the index to the
node in the cached frame, the LayerAndroid's unique id,
and the spacial offset of the node within the layer
when the DOM information was captured. It also caches
a pointer to the LayerAndroid instance.
CacheLayer computes the node's location each time
it is called, since the fixed layer may be constantly
moving relative to the document's coordinates.
WebKit/android/nav/CacheBuilder.h
WebKit/android/nav/CacheBuilder.cpp
- Track the active layer while building the nav cache.
The 'Tracker' structs were refactored to share common
code, and a new 'LayerTracker' struct identifies when
the node walker is inside a layer.
- Added code to dump layer information for debugging.
- Note that CachedNode::cursorRingsPtr can only be called
during nav data construction
- The cache builder can limit or exclude nodes that
are clipped out -- but until I have more understanding
of layer clipping, treat contained nodes as unclipped.
WebKit/android/nav/CachedDebug.h
- Add a variant that can dump either to a log file
or the console including the function it was dumped from.
WebKit/android/nav/CachedFrame.h
WebKit/android/nav/CachedFrame.cpp
- Add an array of CacheLayer instances.
- Protect bounds from direct access since they must
always be computed.
- Remove misnamed focus parameter from many routines
since the cursor node can be read from the root frame.
- Add: adjustBounds(), which computes the bounds as the
layer moves.
- Add: checkRings(), which gets the appropriate picture
for the node.
- Remove disabled code
- Find the layer list for the matching node by
using a binary search
- Add: resetLayers() to reset the LayerAndroid pointer
in CachedLayers when the layer world changes.
WebKit/android/nav/CachedHistory.h
WebKit/android/nav/CachedHistory.cpp
- Update history data to have matching frame and node
WebKit/android/nav/CachedNode.h
WebKit/android/nav/CachedNode.cpp
- Refactor functions that directly read coordinates
to compute them. In some cases, pass the frame in so
that the layer coordinates can be found.
- Add a bit to note that the node belongs to a layer.
- Remove duplicate bounds interfaces.
- Add methods to get cursor ring data at runtime.
- Update debugging info.
WebKit/android/nav/CachedRoot.h
WebKit/android/nav/CachedRoot.cpp
- Isolate direct picture access so that the layer
picture can be returned.
- Add knowledge of how the base is covered by layers.
- Add a pointer to the root LayerAndroid.
- delete disabled code.
- Move the cursor ring into view if it is obscured
by a layer (this isn't totally working)
- Before finding the next node to move to, set
up 'cursor cache' data, including the visible picture.
WebKit/android/nav/FindCanvas.h
WebKit/android/nav/FindCanvas.cpp
- Move find code here so that it can be called from
layers.
WebKit/android/nav/WebView.cpp
- Add java interface to get viewport metrics on demand.
- Pass frame with the node.
- Remove the find on page code (now in FindCanvas).
- Compute focus rings instead of reading them directly.
- Transfer layer id when getting new nav cache.
- Set up root LayerAndroid.
- Add utility to track if cursor is in a layer.
- Simplify drawLayers() to use common view metrics.
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Fixes http://b/issue?id=2201866
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Some of the fields in CachedNode are relevant only to input
fields and text areas. Move these into their own vector
so that we can add more data without making all CacheNodes
bigger.
Remove CacheNode entries that are no longer used, or can
be consolidated into the node type. Alphabetize some interfaces
and implementations. Update the debugging output.
part of http://b/2299660
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These files have not yet been upstreamed to webkit.org.
WebKit requires either a BSD-style or LGPL 2.1 license for all code.
We use a BSD-style 2-clause license for Android-specific files that will be upstreamed to webkit.org.
This change adds licenses where absent or simply fixes the names of copyright holders in the license
text to 'THE COPYRIGHT OWNER' and cleans up formatting.
Files in stl/ currently use licenses other than BSD-style and will require more careful treatment.
Change-Id: I67ad4b8932e432d3eaaeecdfeb0d09418496228d
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In CachedFrame, add methods to find the next textfield and to
determine which ImeAction should be associated with a given textfield.
In WebView, uses these apis to determine the ImeAction and jump
to the next textfield and scroll it on screen. Requires a change to
frameworks/base.
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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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