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author | Samuel Tardieu <sam@rfc1149.net> | 2014-11-23 00:05:19 +0100 |
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committer | Samuel Tardieu <sam@rfc1149.net> | 2014-11-23 00:05:55 +0100 |
commit | 3e04d7a0bc1d1f747d8d18410877f72747a964a8 (patch) | |
tree | b2dabf333a82410d5f4b07d569e0f9b079223bca | |
parent | 08401b7e42d3d1ab815fc78bf84059d1455a4e44 (diff) | |
download | cgeo-3e04d7a0bc1d1f747d8d18410877f72747a964a8.zip cgeo-3e04d7a0bc1d1f747d8d18410877f72747a964a8.tar.gz cgeo-3e04d7a0bc1d1f747d8d18410877f72747a964a8.tar.bz2 |
Update JavaDoc and access level
-rw-r--r-- | main/src/cgeo/geocaching/network/HtmlImage.java | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/main/src/cgeo/geocaching/network/HtmlImage.java b/main/src/cgeo/geocaching/network/HtmlImage.java index 55c923f..81b5ba6 100644 --- a/main/src/cgeo/geocaching/network/HtmlImage.java +++ b/main/src/cgeo/geocaching/network/HtmlImage.java @@ -45,20 +45,11 @@ import java.io.FileInputStream; import java.io.FileNotFoundException; import java.util.Date; -public class HtmlImage implements Html.ImageGetter { +/** + * All-purpose image getter that can also be used as a ImageGetter interface when displaying caches. + */ - // This class implements an all-purpose image getter that can also be used as a ImageGetter interface - // when displaying caches. An instance mainly has three possible use cases: - // - If onlySave is true, getDrawable() will return null immediately and will queue the image retrieval - // and saving in the loading subject. Downloads will start in parallel when the blocking - // waitForBackgroundLoading() method is called, and they can be cancelled through the given handler. - // - If onlySave is false and the instance is called through fetchDrawable(), then an observable for the - // given URL will be returned. This observable will emit the local copy of the image if it is present, - // regardless of its freshness, then if needed an updated fresher copy after retrieving it from the network. - // - If onlySave is false and the instance is used as an ImageGetter, only the final version of the - // image will be returned, unless a view has been provided. If it has, then a dummy drawable is returned - // and is updated when the image is available, possibly several times if we had a stale copy of the image - // and then got a new one from the network. +public class HtmlImage implements Html.ImageGetter { private static final String[] BLOCKED = new String[] { "gccounter.de", @@ -80,7 +71,7 @@ public class HtmlImage implements Html.ImageGetter { final private String geocode; /** - * on error: return large error image, if <code>true</code>, otherwise empty 1x1 image + * on error: return large error image, if {@code true}, otherwise empty 1x1 image */ final private boolean returnErrorImage; final private int listId; @@ -93,10 +84,23 @@ public class HtmlImage implements Html.ImageGetter { // Background loading final private PublishSubject<Observable<String>> loading = PublishSubject.create(); final private Observable<String> waitForEnd = Observable.merge(loading).publish().refCount(); - final CompositeSubscription subscription = new CompositeSubscription(waitForEnd.subscribe()); + final private CompositeSubscription subscription = new CompositeSubscription(waitForEnd.subscribe()); /** * Create a new HtmlImage object with different behaviours depending on <tt>onlySave</tt> and <tt>view</tt> values. + * There are the three possible use cases: + * <ul> + * <li>If onlySave is true, getDrawable() will return null immediately and will queue the image retrieval + * and saving in the loading subject. Downloads will start in parallel when the blocking + * waitForBackgroundLoading() method is called, and they can be cancelled through the given handler.</li> + * <li>If onlySave is false and the instance is called through fetchDrawable(), then an observable for the + * given URL will be returned. This observable will emit the local copy of the image if it is present</li> + * regardless of its freshness, then if needed an updated fresher copy after retrieving it from the network. + * <li>If onlySave is false and the instance is used as an ImageGetter, only the final version of the + * image will be returned, unless a view has been provided. If it has, then a dummy drawable is returned + * and is updated when the image is available, possibly several times if we had a stale copy of the image + * and then got a new one from the network.</li> + * </ul> * * @param geocode the geocode of the item for which we are requesting the image * @param returnErrorImage set to <tt>true</tt> if an error image should be returned in case of a problem, |