* add takahashiPresentation.js: takahashi-method presentation tool.

git-svn-id: http://svn.coderepos.org/share/lang/javascript/vimperator-plugins/trunk@27142 d0d07461-0603-4401-acd4-de1884942a52

1 files changed, 111 insertions, 0 deletions

diff --git a/takahashiPresentation.js b/takahashiPresentation.js
new file mode 100644
index 0000000..a0c613b
--- /dev/null
+++ b/takahashiPresentation.js
@@ -0,0 +1,111 @@
+// 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: