* add autopagerize_controll.js: controll autopagerize

git-svn-id: http://svn.coderepos.org/share/lang/javascript/vimperator-plugins/trunk@28712 d0d07461-0603-4401-acd4-de1884942a52

1 files changed, 111 insertions, 0 deletions

diff --git a/autopagerize_controll.js b/autopagerize_controll.js
new file mode 100644
index 0000000..b97076e
--- /dev/null
+++ b/autopagerize_controll.js
@@ -0,0 +1,111 @@
+// PLUGIN_INFO//{{{
+var PLUGIN_INFO =
+<VimperatorPlugin>
+  <name>{NAME}</name>
+  <description>controll autopagerize</description>
+  <author mail="konbu.komuro@gmail.com" homepage="http://d.hatena.ne.jp/hogelog/">hogelog</author>
+  <version>0.0.1</version>
+  <maxVersion>2.0pre</maxVersion>
+  <updateURL>http://svn.coderepos.org/share/lang/javascript/vimperator-plugins/trunk/autopagerize_controll.js</updateURL>
+  <detail><![CDATA[
+== Options ==
+enable mapping key like
+>||
+  let g:autopagerize_prevmap = "J"
+  let g:autopagerize_nextmap = "K"
+||<
+
+== Commands ==
+autopagerize_next:
+    paging next page
+autopagerize_prev:
+    paging prev page
+
+== TODO ==
+
+  ]]></detail>
+</VimperatorPlugin>;
+//}}}
+(function() {
+
+var libly = liberator.plugins.libly;
+var $U = libly.$U;
+var prevMap = liberator.globalVariables.autopagerize_prevmap;
+var nextMap = liberator.globalVariables.autopagerize_nextmap;
+
+var pager = {
+    modes: [modes.NORMAL, modes.VISUAL],
+    next: function(doc, count) {
+        var curPage = pager.getCurrentPage(doc);
+        pager.paging(doc, Math.floor(curPage+count));
+    },
+    prev: function(doc, count) {
+        var curPage = pager.getCurrentPage(doc);
+        liberator.reportError(curPage);
+        pager.paging(doc, Math.round(curPage-count));
+    },
+    paging: function(doc, page) {
+        liberator.reportError(page);
+        var win = doc.defaultView;
+        if (page <= 1) {
+            win.scrollTo(0, 0);
+        } else if (!pager.focusPagenavi(doc, page)) {
+            win.scrollTo(0, win.scrollMaxY);
+        }
+    },
+    focusPagenavi: function(doc, page) {
+        var xpath = '//*[@class="autopagerize_page_info" and child::a[contains(text(), "'+page+'")]]';
+        var [ elem ] = $U.getNodesFromXPath(xpath, doc);
+        var win = doc.defaultView;
+        if(elem) {
+            let p = $U.getElementPosition(elem);
+            win.scrollTo(0, p.top);
+            return true;
+        }
+        return false;
+    },
+    getCurrentPage: function(doc) {
+        var xpath = '//*[@class="autopagerize_page_info"]';
+        var markers = $U.getNodesFromXPath(xpath, doc);
+        var win = doc.defaultView;
+        var curPos = win.scrollY;
+
+        // top of page
+        if(curPos <= 0) return 1.0;
+
+        // bottom of page
+        if(curPos >= win.scrollMaxY) return 1.0 + markers.length;
+
+        // return n.5 if between n and n+1
+        var page = 1.0;
+        for (var i = 0, len = markers.length; i < len; i++) {
+            let p = $U.getElementPosition(markers[i]);
+            if (curPos == p.top) return page+1;
+            if (curPos < p.top) return page+0.5;
+            ++page;
+        }
+        return page+0.5;
+    },
+};
+commands.addUserCommand(["nextpage"], "Autopagerize next page",
+    function(args)
+        pager.next(window.content.document, args.length>0 ? args[0] : 1));
+commands.addUserCommand(["prevpage"], "Autopagerize prev page",
+    function(args)
+        pager.prev(window.content.document, args.length>0 ? args[0] : 1));
+
+if(nextMap) {
+    mappings.addUserMap(pager.modes, [nextMap], "Autopagerize next page",
+            function(count)
+                pager.next(window.content.document, count>0 ? count : 1),
+            {flags: Mappings.flags.COUNT});
+}
+if(prevMap) {
+    mappings.addUserMap(pager.modes, [prevMap], "Autopagerize prev page",
+            function(count)
+                pager.prev(window.content.document, count>0 ? count : 1),
+            {flags: Mappings.flags.COUNT});
+}
+
+})();
+// vim: set fdm=marker sw=4 ts=4 et: