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// PLUGIN_INFO//{{{
var PLUGIN_INFO =
<VimperatorPlugin>
<name>{NAME}</name>
<description>controls 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>https://github.com/vimpr/vimperator-plugins/raw/master/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);
liberator.reportError(curPage);
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.focusPageNav(doc, page)) {
win.scrollTo(0, win.scrollMaxY);
}
},
focusPageNav: 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 (let 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:
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