Newsticker: Show feedicons in treeview. Small fix in opml export.

* etc/images/newsticker/README: Add rss-feed.png, rss-feed.svg.

* etc/images/newsticker/rss-feed.png: New.

* etc/images/newsticker/rss-feed.svg: New.

* lisp/net/newst-backend.el: Require url-parse.
(newsticker--get-news-by-wget): Store feed name as process property.
(newsticker--sentinel): Read feed name from process property.
(newsticker--sentinel-work): Rename argument name to feed-name.
Rename variable imageurl to image-url.  Pick icon url from Atom
1.0 data.  Launch download of feed icon.
(newsticker--get-icon-url-atom-1.0): New.
(newsticker--unxml)
(newsticker--unxml-node)
(newsticker--unxml-attribute): Documentation.
(newsticker--icons-dir): New.
(newsticker--image-get): New arguments FILENAME and DIRECTORY.
Use `url-retrieve' if `newsticker-retrieval-method' is 'intern.
(newsticker--image-download-by-wget): New.  Use process properties
for storing informations.
(newsticker--image-sentinel): Read informations from process properties.
(newsticker--image-save)
(newsticker--image-remove)
(newsticker--image-download-by-url)
(newsticker--image-download-by-url-callback): New.
(newsticker-opml-export): Handle url list entries containing a
function instead of an url string.

* lisp/net/newst-reader.el (newsticker-html-renderer): Whitespace.
(newsticker--print-extra-elements)
(newsticker--do-print-extra-element): Documentation
(newsticker--image-read): Optionally limit image height.  Use
imagemagick if possible.
(newsticker--icon-read): New.

* lisp/net/newst-treeview.el (newsticker--treeview-item-show): Limit height of feed logo.
(newsticker--treeview-tree-expand): Use feed icons in treeview.
(newsticker--tree-widget-icon-create): New.  Set the tree widget icon.
(newsticker--tree-widget-leaf-icon): Use feed icon.

4 files changed, 130 insertions, 1 deletions

diff --git a/etc/ChangeLog b/etc/ChangeLog
index 5b70ee83c8a..4968084b7ec 100644
--- a/etc/ChangeLog
+++ b/etc/ChangeLog
@@ -1,3 +1,11 @@
+2014-10-19  Ulf Jasper  <ulf.jasper@web.de>
+
+        * images/newsticker/rss-feed.png: New.
+
+        * images/newsticker/rss-feed.svg: New.
+
+        * images/newsticker/README: Add rss-feed.png, rss-feed.svg.
+
 2014-10-18  Michal Nazarewicz  <mina86@mina86.com>
 
         * NEWS: Mention new whitespace-mode option: big-indent.
diff --git a/etc/images/newsticker/README b/etc/images/newsticker/README
index 237b7f08e66..31ca46c8aff 100644
--- a/etc/images/newsticker/README
+++ b/etc/images/newsticker/README
@@ -2,7 +2,7 @@ COPYRIGHT AND LICENSE INFORMATION FOR IMAGE FILES
 
 Files: browse-url.xpm get-all.xpm mark-immortal.xpm mark-read.xpm
        narrow.xpm next-feed.xpm next-item.xpm prev-feed.xpm
-       prev-item.xpm update.xpm
+       prev-item.xpm rss-feed.png rss-feed.svg update.xpm
 Author: Ulf Jasper
 Copyright (C) 2011-2014 Free Software Foundation, Inc.
 License: GNU General Public License version 3 or later (see COPYING)
diff --git a/etc/images/newsticker/rss-feed.png b/etc/images/newsticker/rss-feed.png
new file mode 100644
index 00000000000..41a3263390a
--- /dev/null
+++ b/etc/images/newsticker/rss-feed.png
diff --git a/etc/images/newsticker/rss-feed.svg b/etc/images/newsticker/rss-feed.svg
new file mode 100644
index 00000000000..a4abd6cc19f
--- /dev/null
+++ b/etc/images/newsticker/rss-feed.svg
@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="16px"
+   height="16px"
+   id="svg3028"
+   version="1.1"
+   inkscape:version="0.48.5 r10040"
+   sodipodi:docname="newst-rss.svg">
+  <defs
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+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
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+     inkscape:current-layer="layer1"
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+     inkscape:grid-bbox="true"
+     inkscape:document-units="px"
+     inkscape:snap-global="true"
+     inkscape:snap-object-midpoints="false"
+     inkscape:window-width="1680"
+     inkscape:window-height="1026"
+     inkscape:window-x="0"
+     inkscape:window-y="24"
+     inkscape:window-maximized="0">
+    <inkscape:grid
+       type="xygrid"
+       id="grid3036" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata3033">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+      </cc:Work>
+    </rdf:RDF>
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+  <g
+     id="layer1"
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer">
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