GoogleReaderPreviewEnhancedでキーボードショートカットを使えるように
＜＜＜追記＞＞＞
最新版で直っていると思います。
今日はTweenではない話。
最近Fx2からFx3β3に乗り換えたり、キーボードランチャ（倉）を導入したりで、キーボードオペレーションをちょこちょこ見直していました。
なるべくアドオンやグリモンの導入は控えめにして、元々メモリ食いのFxを少しでも軽く使えるように心がけていました。常用しているのは、
- Googlebar Lite
- Greasemonkey
- Remember The Milk for GMail
ぐらい。
グリモンは、
- AutoPagerize
- GoogleReaderPreviewEnhanced（リンク先を画面内にフレーム表示）
といったところ。（少ないでしょ？）
キーボードで操作を済ませようとすると、LDRize+Minibufferはすごく便利なので、導入してみました。Google検索結果の移動をキーボードで済ませられるようになって便利便利。
ただ、前々から気になっていたのがGoogleReaderPreviewEnhancedのキーボードショートカット。通常Shift+Vで機能するはずなのに利かない。これが不満だけど、便利なので捨てる気にもなれず悶々としていたんですが、一度グリモンも作ってみたいなーと思っていたので、勉強がてら改造してみました。JavaScript自体、ほとんど触ったことがないんですけどねｗ
デバッグ用にとFireBugを導入して、DOMなどを眺めつつ、試行錯誤を繰り返してたら、なんとか動くようになりました。この拡張自体、あんまり使っている人がいない気がしますが、自分用にソースを張っておきます。
// Google Reader Preview Enhanced // version 1.07d + KiriCustomize // 2008-03-06 // Copyright (c) 2007, Julien CAROSI (jcarosi@gmail.com) // Released under the GPL license // http://www.gnu.org/copyleft/gpl.html // // -------------------------------------------------------------------- // // This is a Greasemonkey user script. // // To install, you need Greasemonkey Firefox extension : http://greasemonkey.mozdev.org/ // Then restart Firefox and revisit this script. // Click on install. // // -------------------------------------------------------------------- // ==UserScript== // @name GPE // @namespace http://userscripts.org/scripts/show/9455 // @description Adds a "Preview button" that allows you to view actual article in a frame. Clicking again on that button goes back to RSS view. Does work both in List view and expanded view. // @include http://reader.google.com/reader/* // @include https://reader.google.com/reader/* // @include http://www.google.com/reader/* // @include https://www.google.com/reader/* // ==/UserScript== // // -------------------------------------------------------------------- // This script adds a "Preview button" that allows you to view actual article in a frame. // Clicking again on that button goes back to RSS view. Does work both in List view and expanded view. // // Feel free to address comments or improvement suggestions to jcarosi@gmail.com // // -------------------------------------------------------------------- // Changelog : // v1.07d + KiriCustomize : ショートカットキーShift+Vを有効に // v1.07d : makes scrolling to top of article work again because google's code was changed. Same for shortcut // v1.07c : fixes problem with Shift V shortcut that prevented typing capital V in GR's dialog boxes // added support for https urls // v1.07b : makes scrolling to top of article work again because google's code was changed. Same for shortcut // v1.07a : makes the script work again because google's code was changed. // added a try/catch statement in order to make the script work even if the code changes again, though not scrolling to the top of article // so people can still use the script until an upgrade is released // v1.07 : allows clicking on an article's title to show the preview, so you don't need to scroll it down to preview it (was opening the article in a new window previously, now not needed with preview functionnality) // v1.06a : fixes compatibility with "find as you type" firefox functionality // v1.06 : adds a keyboard shortcut for previewing an article. Now you can press Shift-V to go to preview mode or go back to rss view. // v1.05a : adds better support for Better GReader extension. // v1.05 : makes the script work again because offline functionnality broke it when it was added by Google. // v1.0 : initial release. // -------------------------------------------------------------------- // Tested on Firefox 1.5 and 2.0 // -------------------------------------------------------------------- function getFirstElementMatchingClassName(root,tag,class) { var elements=root.getElementsByTagName(tag); var i=0; while (elements[i] && !elements[i].className.match(class)) { i++; } return ((!elements[i]) ? null : (elements[i])); } function getElementsByClassName(root,tag,class) { var elements = root.getElementsByTagName(tag); var results = new Array(); for(var i=0; i<elements.length; i++) { if(elements[i].className.indexOf(class)>-1) { results.push(elements[i]); } } return (results); } function findParentNode(el,tag,class) { el=el.parentNode; if (arguments.length==3) { // Find first element's parent node matching tag and className while (el.nodeName.toLowerCase()!='body' && (el.nodeName.toLowerCase()!=tag || (el.className!=class && el.className.indexOf(class+' ')==-1))) { el=el.parentNode; } return ((el.nodeName.toLowerCase()!='body') ? el : false); } else { // Find first element's parent node matching tag while (el.nodeName.toLowerCase()!='body' && el.nodeName.toLowerCase()!=tag) { el=el.parentNode; } return ((el.nodeName.toLowerCase()!='body') ? el : false); } } function addStyles(css) { var head=document.getElementsByTagName('head')[0]; if (head) { var style=document.createElement('style'); style.type='text/css'; style.innerHTML=css; head.appendChild(style); } } function catchEntryAdded(e) { var el=e.target; if (el.nodeName=='DIV' && el.className.indexOf('entry')>-1) { if (el.className.indexOf('entry-actions')>-1) { // Expanding article in list view addPreviewButton(el); } else if (getFirstElementMatchingClassName(el,'tbody','card-tbody')) { // Adding article in expanded view addPreviewButton(getFirstElementMatchingClassName(el,'div','entry-actions')); } } } function addPreviewButton(el) { // Top link var entry=findParentNode(el,'div','entry'); var link=getFirstElementMatchingClassName(entry,'a','entry-title-link'); link.addEventListener('click', previewMouseClick, false); // link.addEventListener('click', function(e) { if (e.ctrlKey) { previewMouseClick(e); } }, false); // Bottom button var preview=document.createElement('span'); preview.className='item-preview preview link'; preview.innerHTML='Preview'; el.appendChild(preview); preview.addEventListener('click', previewMouseClick, false); } function calcEntryIndex(e) { var index=0; while (e.previousSibling) { index++; e=e.previousSibling; } return index; } function previewMouseClick(e) { var el=e.target; var entry=findParentNode(el,'div','entry'); var index = calcEntryIndex(entry); preview(entry,index); e.preventDefault(); } function previewShortcut() { // Add below 3 lines by Kiri 2008-3-6 var entry=document.getElementById('current-entry'); var index = calcEntryIndex(entry); preview(entry,index); // Delete below 6 lines by Kiri 2008-3-6 // var index=unsafeWindow.s.ma; // if (index>-1) // { // // An article is selected, preview it // preview(getEntryDOMObject(index),index); // } } function preview(entry,index) { var preview; var button = getFirstElementMatchingClassName(entry,'span','item-preview'); // Update entry with preview mode, need to do it before scrolling, because scrolling will repaint preview button (list view only) if (entry.className.indexOf('preview')==-1) { entry.className=entry.className+' preview'; preview=true; } else { entry.className=entry.className.replace('preview',''); preview=false; } // Need to scroll before changing entry-body, because scrolling repaints article from scratch (list view only) scrollTo(index); root = getEntryDOMObject(index); var body = getFirstElementMatchingClassName(entry,'div','entry-body'); var ins = body.getElementsByTagName('ins')[0]; if (preview) { // classic mode-> preview mode // hide rss item ins.style.display='none'; // iframe creation/display var iframe = getFirstElementMatchingClassName(entry,'iframe','preview'); if (iframe) { // iframe already in document, display it iframe.style.display='block'; } else { // iframe not in document, create it iframe = document.createElement('iframe'); iframe.setAttribute('width','100%'); iframe.setAttribute('height','500px'); iframe.setAttribute('src',getFirstElementMatchingClassName(entry,'a','entry-title-link')); iframe.className='preview'; body.appendChild(iframe); } // Scale article container to fullwidth body.setAttribute('style','max-width: 98%'); } else { // preview mode -> classic mode // hide iframe var iframe = getFirstElementMatchingClassName(entry,'iframe','preview'); if (iframe) iframe.style.display='none'; // show rss item ins.style.display='block'; // Go back to initial width body.removeAttribute('style',''); } } function handleKeypress(e) { // Handle a Shift-V keypress if (e.target.nodeName.toLowerCase()!='input' && e.shiftKey && e.keyCode==86) { previewShortcut(); e.preventDefault(); } } function getEntryDOMObject(index) { // Because of repaint, entry doesn't point to correct DOM object, we need to find entry using index var entries=document.getElementById('entries'); var i=0; entry=entries.firstChild; while ((i++)<index) { entry=entry.nextSibling; } return entry; } function scrollTo(index) { // Force scrolling to top of article try { location.href = 'javascript:void(s.ma=-1);'; location.href = 'javascript:void(s.hf('+index+'));'; } catch(err) { } } function restyle() { // Overwrites Better GReader extension css modifications regarding entry-actions class. // Indeed, entry-actions was set to "float : right", thus div was not in document flow. // Then, clicking on preview button let entry actions div in place instead of going down automatically when iframe was added. // That's why I use here text-align: right. That has the same effect, but keeps div in document flow. // restyle() is called after document load, in order to ensure that Better GReader has already added its styles modifications var styles = document.getElementsByTagName('head')[0].getElementsByTagName('style'); var i=0; while (i<styles.length) { if (styles[i].innerHTML.indexOf('.entry-actions { float:right !important; }')>-1) { styles[i].innerHTML=styles[i].innerHTML.replace('.entry-actions { float:right !important; }','.entry-actions { text-align: right; !important; }'); } i++; } } function init() { restyle(); addStyles('span.item-preview { background: url("data:image/gif,GIF89a%10%00%10%00%D5%13%00%D8%D8%D8%FA%FA%FA%CB%CB%CB%C8%C8%C8%D2%D2%D2%BA%BA%BA%C6%C6%C6%A1%A1%A1%9C%9C%9C%BD%BD%BD%C9%C9%C9%AB%AB%AB%F4%F4%F4%BF%BF%BF%FC%FC%FC%DB%DB%DB%AD%AD%AD%FF%FF%FF%CC%CC%CC%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00%00!%F9%04%01%00%00%13%00%2C%00%00%00%00%10%00%10%00%00%06I%C0%89pH%2C%1A%8F%C8d%F1!i%3A%9F%8F%E1%03B%ADZ%A9%D1%89%04%12%E9z%BF%10%89p%FB-G%C2c%AE%D9%8B%D6%AA%03_%F8Y%EC%8E%C8%E3%F3%F4%9AM\'%7B%1D%0E%60t%00W%85%10%00RO%8A%12YJ%8E%8EA%00%3B") no-repeat; padding-left: 16px; } div.entry.preview span.item-preview { background: url("data:image/gif,GIF89a%10%00%10%00%A2%05%00%D8%D8%D8%DB%DB%DB%AD%AD%AD%CC%CC%CC%FE%9A%20%FF%FF%FF%00%00%00%00%00%00!%F9%04%01%00%00%05%00%2C%00%00%00%00%10%00%10%00%00%03%3BX%BA%DC%FE0%B60%AA%BDa%05%C1%BB%E7Y1%08Di%9E%C2%A0%8C%A6%D7%AA%22Y%CA2%91%AE%B5%3B%C3%EC%7C%EE%B8%D6%CF%C6%AB%0D%89%0A%C0g)%00h.%D0AHB%A5%26%00%00%3B") no-repeat; padding-left: 16px; }'); } document.body.addEventListener('DOMNodeInserted', catchEntryAdded, false); document.addEventListener('keydown',handleKeypress, false); window.addEventListener('load',init,false);
