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// PLUGIN_INFO//{{{
var PLUGIN_INFO =
<VimperatorPlugin>
<name>{NAME}</name>
<description>simple takahashi-method presentation tool</description>
<author mail="konbu.komuro@gmail.com" homepage="http://d.hatena.ne.jp/hogelog/">hogelog</author>
<version>0.1</version>
<minVersion>2.0a1</minVersion>
<maxVersion>2.0a1</maxVersion>
<detail><![CDATA[
== COMMANDS ==
presentation:
start presentation
== HOWTO ==
open html file includes <pre id="page">...</pre> and <div id="text">...</pre>.
start :presentation.
]]></detail>
</VimperatorPlugin>;
//}}}
(function() {
plugins.presentation = {};
let keys = [
['<Right>', 'next page', function() nextPage()],
['<Left>', 'prev page', function() prevPage()],
['^', 'first page', function() loadPage(0)],
['$', 'last page', function() loadPage(pages.length-1)],
['.', 'last page', function(count) loadPage(count?count-1:0), {flags: Mappings.flags.COUNT}],
];
let win;
let doc;
let pages = [];
let curpage = 0;
let pre;
let div;
let fontSize = 18.0;
function addKeys() {
keys.forEach(function([key, desc, action, extra])
mappings.addUserMap([modes.NORMAL], [key], desc, action, extra));
}
function fitPage() {
if(pre.innerHTML=='') return;
pre.style.display = 'inline';
let parentWidth = pre.parentNode.offsetWidth;
let parentHeight = pre.parentNode.offsetHeight;
let width = pre.offsetWidth;
let height = pre.offsetHeight;
let preRatio = width/height;
let winRatio = parentWidth/parentHeight;
if(preRatio>winRatio) {
fontSize *= 0.9*(parentWidth-10)/width;
} else {
fontSize *= 0.9*(parentHeight-10)/height;
}
pre.style.fontSize = fontSize+'px';
pre.style.display = 'block';
}
function loadPage(page) {
let text = pages[page];
pre.innerHTML = text;
head.innerHTML = (page+1)+'/'+pages.length;
fitPage();
}
function nextPage() {
curpage = curpage>=pages.length-1 ? 0 : curpage+1;
loadPage(curpage);
}
function prevPage() {
curpage = curpage<=0 ? pages.length-1 : curpage-1;
loadPage(curpage);
}
function parsePages(text) {
if(/:backgroundImage:(.+)\n/.test(text)) {
doc.body.style.backgroundImage = RegExp.$1;
doc.body.style.backgroundRepeat = 'repeat';
}
text = text.replace(/:.+\n/g, '');
return text.split('----').map(function(txt) txt.replace(/^\n/, '').replace(/\n$/, ''));
}
function start() {
options.fullscreen = true;
options.guioptions = "";
win = window.content;
doc = win.document;
let text = buffer.evaluateXPath('//div[@id="text"]').snapshotItem(0);
pages = parsePages(text.innerHTML);
addKeys();
div = doc.createElement('div');
head = doc.createElement('div');
head.style.textAlign = 'right';
doc.body.appendChild(head);
pre = buffer.evaluateXPath('//pre[@id="page"]').snapshotItem(0);
pre.style.fontSize = fontSize+'px';
pre.style.margin = '0px';
loadPage(0);
}
commands.add(['presentation'], 'start presentation', //{{{
function(args) {
stop();
},
{
argCount: '0',
}); //}}}
})();
// vim: fdm=marker sw=4 ts=4 et:
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