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Created Jun 19, 2013
[Vimperator]ページ内の見出し的要素へジャンプする奴
:nav コマンドでテキトウに補完を使いましょう
:nnoremap v :nav<Space> とかすると快適かも
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"use strict"; | |
var selector = "h1, h2, h3, h4, main, [role=main], [role=navigation], [role=search]"; | |
var cache = new WeakMap; | |
function getJumpList (force) { | |
var browser = gBrowser.selectedBrowser, | |
doc = browser.contentDocument, | |
win = browser.contentWindow; | |
if (!force && cache.has(win)) | |
return cache.get(win); | |
var items = []; | |
var wX = win.scrollX, | |
wY = win.scrollY, | |
index = 1; | |
for (let elm of doc.querySelectorAll(selector)) { | |
let id = elm.getAttribute("id") || "", | |
role = elm.getAttribute("role") || "", | |
rect = elm.getBoundingClientRect(); | |
let localName = elm.localName, | |
key = index + ":" + localName + ":", | |
desc = elm.textContent.substring(0, 50).replace(/\s+/g, " "); | |
if (id) | |
key += "#" + id + ":"; | |
if (role) | |
key += "[" + role + "]:" | |
items.push({ | |
id: id, | |
key: key + desc, | |
desc: localName + ": " + desc, | |
x: wX + rect.left, | |
y: wY + rect.top, | |
node: elm, | |
}); | |
index++; | |
} | |
cache.set(win, items); | |
return items; | |
} | |
function jumpTo (item) { | |
var win = gBrowser.contentWindow; | |
if (item.id) | |
win.location.hash = "#" + item.id; | |
else | |
win.scrollTo(Math.min(item.x, win.scrollMaxX), Math.min(item.y, win.scrollMaxY)); | |
item.node.focus(); | |
flashNode(item.node); | |
cache.delete(win); | |
} | |
function flashNode (node) { | |
var count = 7, | |
originalOUtline = node.style.outline, | |
win = node.ownerDocument.defaultView; | |
var id = win.setInterval(function(){ | |
if (count <= 0) { | |
win.clearInterval(id); | |
node.style.outline = originalOUtline; | |
return; | |
} | |
node.style.outline = count % 2 ? | |
"2px solid red": | |
"0 solid transparent"; | |
--count; | |
}, 200); | |
} | |
commands.addUserCommand(["nav"], "page jump", | |
function (args) { | |
var list = getJumpList(); | |
var arg = args.string; | |
var m = arg.match(/^(\d+):?/); | |
if (m) { | |
let index = parseInt(m[1], 10) - 1; | |
if (index in list) { | |
jumpTo(list[index]); | |
return; | |
} | |
} | |
var item = list.filter(function (item) { | |
return item.key.contains(arg); | |
})[0]; | |
if (item) | |
jumpTo(item); | |
}, { | |
literal: 0, | |
completer: function (context) { | |
context.title = ["Page Jump List"]; | |
context.compare = CompletionContext.Sort.unsorted; | |
context.anchored = false; | |
context.completions = [[item.key, item.desc] for (item of getJumpList(true))]; | |
}, | |
}, true); |
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