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/*** BEGIN LICENSE BLOCK {{{
Copyright (c) 2009 hogelog<konbu.komuro@gmail.com>
Released under the GPL license
http://www.gnu.org/copyleft/gpl.html
}}} END LICENSE BLOCK ***/
// PLUGIN_INFO//{{{
var PLUGIN_INFO =
<VimperatorPlugin>
<name>{NAME}</name>
<description>marker PageDown/PageUp.</description>
<author mail="konbu.komuro@gmail.com" homepage="http://d.hatena.ne.jp/hogelog/">hogelog</author>
<version>0.0.4</version>
<license>GPL</license>
<minVersion>2.1pre</minVersion>
<maxVersion>2.1pre</maxVersion>
<updateURL>http://svn.coderepos.org/share/lang/javascript/vimperator-plugins/trunk/marker_reader.js</updateURL>
<detail><![CDATA[
== OPTION ==
>||
let g:marker_reader_scroll_ratio = "0.7"
||<
mnext, mprev scroll 0.7 * <screen height>.
>||
let g:marker_reader_onload = 0
||<
prevent PageLoad insert markers action.
== BUG ==
- all marker are inserted at top(0,0) on some page.
]]></detail>
</VimperatorPlugin>;
//}}}
plugins.marker_reader = (function() {
const HTML_NAMESPACE = "http://www.w3.org/1999/xhtml";
var libly = liberator.plugins.libly;
var $U = libly.$U;
var logger = $U.getLogger("marker");
var reader = {
pageNaviCss:
<style type="text/css"><![CDATA[
.vimperator-marker_reader-marker {
background-color: #faa;
opacity: 0.30;
margin: 0px;
/*padding: 10px;*/
height: 1.5em;
width: 100%;
font-weight: bold;
text-align: left;
position: absolute;
-moz-border-radius: 5px;
}
]]></style>,
insertMarkers: function(doc)
{
let win = doc.defaultView;
doc.naviMarker = true;
let css = $U.xmlToDom(reader.pageNaviCss, doc);
let node = doc.importNode(css, true);
doc.body.insertBefore(node, doc.body.firstChild);
let scroll_ratio = parseFloat(liberator.globalVariables.marker_reader_scroll_ratio) || 0.9;
let scroll = win.innerHeight * scroll_ratio;
let count = Math.ceil(win.scrollMaxY / scroll);
let insertPoint = doc.body.firstChild;
let markers = [];
for (let pageNum=1;pageNum<=count+1;++pageNum)
{
let p = doc.createElementNS(HTML_NAMESPACE, "p");
let id = "vimperator-marker_reader-" + pageNum;
p.id = id;
p.innerHTML = '<a href="#' + id + '">' + pageNum + "</a>";
p.className = "vimperator-marker_reader-marker";
p.style.left = 0;
p.style.top = Math.ceil((pageNum-1)*scroll);
p.style.zIndex = 1000;
doc.body.insertBefore(p, insertPoint);
//doc.body.appendChild(p);
markers.push(p);
}
return doc.markers = markers;
},
removeMarkers: function(doc)
{
let markers = doc.markers;
if (!markers) return false;
for (let i=0,len=markers.length;i<len;++i)
{
doc.body.removeChild(markers[i]);
}
return true;
},
currentPage: function(doc)
{
let markers = doc.markers;
let win = doc.defaultView;
let curPos = win.scrollY;
// top of page
if (curPos <= 0) return 1.0;
// bottom of page
if (curPos >= win.scrollMaxY) {
if (markers.length > 0) {
let lastMarker = markers[markers.length-1].offsetTop;
if (curPos <= lastMarker) return markers.length;
}
return markers.length + 0.5;
}
// return n.5 if between n and n+1
let page = 1.0;
for (let i=0,len=markers.length;i<len;++i)
{
let pos = parseInt(markers[i].offsetTop);
logger.log(pos);
if (curPos == pos) return page;
if (curPos < pos) return page - 0.5;
++page;
}
return page - 0.5;
},
focusNavi: function(doc, count)
{
function navi(win, page)
{
let xpath = '//*[@id="vimperator-marker_reader-' + page + '"]';
let [elem] = $U.getNodesFromXPath(xpath, doc);
if (elem) {
win.scrollTo(0, elem.offsetTop);
return true;
}
return false;
}
let win = doc.defaultView;
let curPage = reader.currentPage(doc);
let page = (count < 0 ? Math.round : Math.floor)(curPage + count);
logger.log(curPage);
logger.log(page);
if (page <= 1) {
win.scrollTo(0, 0);
return true;
} else if (navi(win, page)) {
return true;
}
reader.removeMarkers(doc);
reader.insertMarkers(doc);
if (navi(win, page)) return true;
win.scrollTo(0, win.scrollMaxY);
return true;
},
};
commands.addUserCommand(["markersinsert", "minsert"], "insert markers",
function ()
{
reader.insertMarkers(content.document);
});
commands.addUserCommand(["markersremove", "mremove"], "remove markers",
function ()
{
reader.removeMarkers(content.document);
});
commands.addUserCommand(["markernext", "mnext"], "marker PageDown",
function ()
{
reader.focusNavi(content.document, 1);
});
commands.addUserCommand(["markerprev", "mprev"], "marker PageUp",
function ()
{
reader.focusNavi(content.document, -1);
});
if (liberator.globalVariables.marker_reader_onload !== 0) {
gBrowser.addEventListener("load", function (event) {
let win = (event.target.contentDocument||event.target).defaultView;
if (win.frameElement) return;
let doc = win.document;
if (!(doc instanceof HTMLDocument)) return;
if (doc.contentType != "text/html") return;
reader.removeMarkers(doc);
reader.insertMarkers(doc);
}, true);
}
return reader;
})();
// vim: fdm=marker sw=4 ts=4 et:
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