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pentadactyl-pm/common/modules/dom.jsm
2015-03-04 17:27:32 -08:00

1911 lines
69 KiB
JavaScript

// Copyright (c) 2007-2011 by Doug Kearns <dougkearns@gmail.com>
// Copyright (c) 2008-2015 Kris Maglione <maglione.k@gmail.com>
//
// This work is licensed for reuse under an MIT license. Details are
// given in the LICENSE.txt file included with this file.
"use strict";
defineModule("dom", {
exports: ["$", "DOM", "NS", "XBL", "XHTML", "XUL"]
});
lazyRequire("highlight", ["highlight"]);
lazyRequire("messages", ["_"]);
lazyRequire("overlay", ["overlay"]);
lazyRequire("prefs", ["prefs"]);
lazyRequire("template", ["template"]);
var XBL = "http://www.mozilla.org/xbl";
var XHTML = "http://www.w3.org/1999/xhtml";
var XUL = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
var NS = "http://vimperator.org/namespaces/liberator";
function BooleanAttribute(attr) ({
get: function (elem) elem.getAttribute(attr) == "true",
set: function (elem, val) {
if (val === "false" || !val)
elem.removeAttribute(attr);
else
elem.setAttribute(attr, true);
}
});
/**
* @class
*
* A jQuery-inspired DOM utility framework.
*
* Please note that while this currently implements an Array-like
* interface, this is *not a defined interface* and is very likely to
* change in the near future.
*/
var DOM = Class("DOM", {
init: function init(val, context, nodes) {
let self;
let length = 0;
if (nodes)
this.nodes = nodes;
if (context instanceof Ci.nsIDOMDocument)
this.document = context;
if (typeof val == "string")
val = context.querySelectorAll(val);
if (val == null)
;
else if (DOM.isJSONXML(val)) {
if (context instanceof Ci.nsIDOMDocument)
this[length++] = DOM.fromJSON(val, context, this.nodes);
else
this[length++] = val;
}
else if (val instanceof Ci.nsIDOMNode || val instanceof Ci.nsIDOMWindow)
this[length++] = val;
else if (Symbol.iterator in val)
for (let elem of val)
this[length++] = elem;
else if (isinstance(val, ["Iterator", "Generator"]))
for (let elem in val)
this[length++] = elem;
else if ("length" in val)
for (let i = 0; i < val.length; i++)
this[length++] = val[i];
else
this[length++] = val;
this.length = length;
return self || this;
},
"@@iterator": function* __iterator__() {
for (let i = 0; i < this.length; i++)
yield this[i];
},
Empty: function Empty() this.constructor(null, this.document),
nodes: Class.Memoize(function () ({})),
get items() {
return function* () {
for (let i = 0; i < this.length; i++)
/* FIXME: Symbols */
yield this.eq(i);
}.call(this);
},
get document() this._document || this[0] && (this[0].ownerDocument || this[0].document || this[0]),
set document(val) this._document = val,
attrHooks: {
"": {
href: { get: elem => elem.href || elem.getAttribute("href") },
src: { get: elem => elem.src || elem.getAttribute("src") },
checked: { get: elem => elem.hasAttribute("checked") ? elem.getAttribute("checked") == "true" : elem.checked,
set: (elem, val) => { elem.setAttribute("checked", !!val); elem.checked = val; } },
collapsed: BooleanAttribute("collapsed"),
disabled: BooleanAttribute("disabled"),
hidden: BooleanAttribute("hidden"),
readonly: BooleanAttribute("readonly")
}
},
matcher: function matcher(sel) elem => (elem.mozMatchesSelector && elem.mozMatchesSelector(sel)),
each: function each(fn, self) {
let obj = self || this.Empty();
for (let i = 0; i < this.length; i++)
fn.call(self || update(obj, [this[i]]), this[i], i);
return this;
},
eachDOM: function eachDOM(val, fn, self) {
let dom = this;
function munge(val, container, idx) {
if (val instanceof Ci.nsIDOMRange)
return val.extractContents();
if (val instanceof Ci.nsIDOMNode)
return val;
if (DOM.isJSONXML(val)) {
val = dom.constructor(val, dom.document);
if (container)
container[idx] = val[0];
}
if (isObject(val) && "length" in val) {
let frag = dom.document.createDocumentFragment();
for (let i = 0; i < val.length; i++)
frag.appendChild(munge(val[i], val, i));
return frag;
}
return val;
}
if (DOM.isJSONXML(val))
val = (function () this).bind(val);
if (callable(val))
return this.each(function (elem, i) {
util.withProperErrors(fn, this, munge(val.call(this, elem, i)), elem, i);
}, self || this);
if (this.length)
util.withProperErrors(fn, self || this, munge(val), this[0], 0);
return this;
},
eq: function eq(idx) {
return this.constructor(this[idx >= 0 ? idx : this.length + idx]);
},
find: function find(val) {
return this.map(elem => elem.querySelectorAll(val));
},
findAnon: function findAnon(attr, val) {
return this.map(elem => elem.ownerDocument.getAnonymousElementByAttribute(elem, attr, val));
},
filter: function filter(val, self) {
let res = this.Empty();
if (!callable(val))
val = this.matcher(val);
this.constructor(Array.filter(this, val, self || this));
let obj = self || this.Empty();
for (let i = 0; i < this.length; i++)
if (val.call(self || update(obj, [this[i]]), this[i], i))
res[res.length++] = this[i];
return res;
},
is: function is(val) {
return this.some(this.matcher(val));
},
reverse: function reverse() {
Array.reverse(this);
return this;
},
all: function all(fn, self) {
let res = this.Empty();
this.each(function (elem) {
while (true) {
elem = fn.call(this, elem);
if (elem instanceof Ci.nsIDOMNode)
res[res.length++] = elem;
else if (elem && "length" in elem)
for (let i = 0; i < elem.length; i++)
res[res.length++] = elem[j];
else
break;
}
}, self || this);
return res;
},
map: function map(fn, self) {
let res = this.Empty();
let obj = self || this.Empty();
for (let i = 0; i < this.length; i++) {
let tmp = fn.call(self || update(obj, [this[i]]), this[i], i);
if (isObject(tmp) && !(tmp instanceof Ci.nsIDOMNode) && "length" in tmp)
for (let j = 0; j < tmp.length; j++)
res[res.length++] = tmp[j];
else if (tmp != null)
res[res.length++] = tmp;
}
return res;
},
slice: function eq(start, end) {
return this.constructor(Array.slice(this, start, end));
},
some: function some(fn, self) {
for (let i = 0; i < this.length; i++)
if (fn.call(self || this, this[i], i))
return true;
return false;
},
get parent() this.map(elem => elem.parentNode, this),
get offsetParent() this.map(function (elem) {
do {
var parent = elem.offsetParent;
if (parent instanceof Ci.nsIDOMElement && DOM(parent).position != "static")
return parent;
}
while (parent);
}, this),
get ancestors() this.all(elem => elem.parentNode),
get children() this.map(elem => Array.filter(elem.childNodes,
e => e instanceof Ci.nsIDOMElement),
this),
get contents() this.map(elem => elem.childNodes, this),
get siblings() this.map(elem => Array.filter(elem.parentNode.childNodes,
e => e != elem && e instanceof Ci.nsIDOMElement),
this),
get siblingsBefore() this.all(elem => elem.previousElementSibling),
get siblingsAfter() this.all(elem => elem.nextElementSibling),
get allSiblingsBefore() this.all(elem => elem.previousSibling),
get allSiblingsAfter() this.all(elem => elem.nextSibling),
get class() {
let self = this;
return {
toString: function () self[0].className,
get list() Array.slice(self[0].classList),
set list(val) self.attr("class", val.join(" ")),
each: function each(meth, arg) {
return self.each(function (elem) {
elem.classList[meth](arg);
});
},
add: function add(cls) this.each("add", cls),
remove: function remove(cls) this.each("remove", cls),
toggle: function toggle(cls, val, thisObj) {
if (callable(val))
return self.each(function (elem, i) {
this.class.toggle(cls, val.call(thisObj || this, elem, i));
});
return this.each(val == null ? "toggle" : val ? "add" : "remove", cls);
},
has: function has(cls) this[0].classList.has(cls)
};
},
get highlight() {
let self = this;
return {
toString: function () self.attrNS(NS, "highlight") || "",
get list() {
let s = this.toString().trim();
return s ? s.split(/\s+/) : [];
},
set list(val) {
let str = Ary.uniq(val).join(" ").trim();
self.attrNS(NS, "highlight", str || null);
},
has: function has(hl) ~this.list.indexOf(hl),
add: function add(hl) self.each(function () {
highlight.loaded[hl] = true;
this.highlight.list = this.highlight.list.concat(hl);
}),
remove: function remove(hl) self.each(function () {
this.highlight.list = this.highlight.list.filter(h => h != hl);
}),
toggle: function toggle(hl, val, thisObj) self.each(function (elem, i) {
let { highlight } = this;
let v = callable(val) ? val.call(thisObj || this, elem, i) : val;
highlight[(v == null ? highlight.has(hl) : !v) ? "remove" : "add"](hl);
}),
};
},
get rect() this[0] instanceof Ci.nsIDOMWindow ? { width: this[0].scrollMaxX + this[0].innerWidth,
height: this[0].scrollMaxY + this[0].innerHeight,
get right() this.width + this.left,
get bottom() this.height + this.top,
top: -this[0].scrollY,
left: -this[0].scrollX } :
this[0] ? this[0].getBoundingClientRect() : {},
get viewport() {
let node = this[0];
if (node instanceof Ci.nsIDOMDocument)
node = node.defaultView;
if (node instanceof Ci.nsIDOMWindow)
return {
get width() this.right - this.left,
get height() this.bottom - this.top,
bottom: node.innerHeight,
right: node.innerWidth,
top: 0, left: 0
};
let r = this.rect;
return {
width: node.clientWidth,
height: node.clientHeight,
top: r.top + node.clientTop,
get bottom() this.top + this.height,
left: r.left + node.clientLeft,
get right() this.left + this.width
};
},
scrollPos: function scrollPos(left, top) {
if (arguments.length == 0) {
if (this[0] instanceof Ci.nsIDOMElement)
return { top: this[0].scrollTop, left: this[0].scrollLeft,
height: this[0].scrollHeight, width: this[0].scrollWidth,
innerHeight: this[0].clientHeight, innerWidth: this[0].innerWidth };
if (this[0] instanceof Ci.nsIDOMWindow)
return { top: this[0].scrollY, left: this[0].scrollX,
height: this[0].scrollMaxY + this[0].innerHeight,
width: this[0].scrollMaxX + this[0].innerWidth,
innerHeight: this[0].innerHeight, innerWidth: this[0].innerWidth };
return null;
}
let func = callable(left) && left;
return this.each(function (elem, i) {
if (func)
({ left, top }) = func.call(this, elem, i);
if (elem instanceof Ci.nsIDOMWindow)
elem.scrollTo(left == null ? elem.scrollX : left,
top == null ? elem.scrollY : top);
else {
if (left != null)
elem.scrollLeft = left;
if (top != null)
elem.scrollTop = top;
}
});
},
/**
* Returns true if the given DOM node is currently visible.
* @returns {boolean}
*/
get isVisible() {
let style = this[0] && this.style;
return style && style.visibility == "visible" && style.display != "none";
},
get editor() {
if (!this.length)
return;
this[0] instanceof Ci.nsIDOMNSEditableElement;
try {
if (this[0].editor instanceof Ci.nsIEditor)
var editor = this[0].editor;
}
catch (e) {
util.reportError(e);
}
try {
if (!editor)
editor = this[0].QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIWebNavigation)
.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIEditingSession)
.getEditorForWindow(this[0]);
}
catch (e) {}
editor instanceof Ci.nsIPlaintextEditor;
editor instanceof Ci.nsIHTMLEditor;
return editor;
},
get isEditable() !!this.editor || this[0] instanceof Ci.nsIDOMElement && this.style.MozUserModify == "read-write",
get isInput() isinstance(this[0], [Ci.nsIDOMHTMLInputElement,
Ci.nsIDOMHTMLTextAreaElement,
Ci.nsIDOMXULTextBoxElement])
&& this.isEditable,
/**
* Returns an object representing a Node's computed CSS style.
* @returns {Object}
*/
get style() {
let node = this[0];
if (node instanceof Ci.nsIDOMWindow)
node = node.document;
if (node instanceof Ci.nsIDOMDocument)
node = node.documentElement;
while (node && !(node instanceof Ci.nsIDOMElement) && node.parentNode)
node = node.parentNode;
try {
var res = node.ownerDocument.defaultView.getComputedStyle(node, null);
}
catch (e) {
util.reportError(e);
}
if (res == null) {
util.dumpStack(_("error.nullComputedStyle", node));
Cu.reportError(Error(_("error.nullComputedStyle", node)));
return {};
}
return res;
},
/**
* Parses the fields of a form and returns a URL/POST-data pair
* that is the equivalent of submitting the form.
*
* @returns {object} An object with the following elements:
* url: The URL the form points to.
* postData: A string containing URL-encoded post data, if this
* form is to be POSTed
* charset: The character set of the GET or POST data.
* elements: The key=value pairs used to generate query information.
*/
// Nuances gleaned from browser.jar/content/browser/browser.js
get formData() {
function encode(name, value, param) {
param = param ? "%s" : "";
if (post)
return name + "=" + encodeComponent(value + param);
return encodeComponent(name) + "=" + encodeComponent(value) + param;
}
let field = this[0];
let form = field.form;
let doc = form.ownerDocument;
let charset = doc.characterSet;
let converter = services.CharsetConv(charset);
for (let cs of form.acceptCharset.split(/\s*,\s*|\s+/)) {
let c = services.CharsetConv(cs);
if (c) {
converter = services.CharsetConv(cs);
charset = cs;
}
}
let uri = util.newURI(doc.baseURI.replace(/\?.*/, ""), charset);
let url = util.newURI(form.action, charset, uri).spec;
let post = form.method.toUpperCase() == "POST";
let encodeComponent = encodeURIComponent;
if (charset !== "UTF-8")
encodeComponent = function encodeComponent(str)
escape(converter.ConvertFromUnicode(str) + converter.Finish());
let elems = [];
if (field instanceof Ci.nsIDOMHTMLInputElement && field.type == "submit")
elems.push(encode(field.name, field.value));
for (let elem of form.elements)
if (elem.name && !elem.disabled) {
if (DOM(elem).isInput
|| /^(?:hidden|textarea)$/.test(elem.type)
|| elem.type == "submit" && elem == field
|| elem.checked && /^(?:checkbox|radio)$/.test(elem.type)) {
if (elem !== field)
elems.push(encode(elem.name, elem.value));
else if (overlay.getData(elem, "had-focus"))
elems.push(encode(elem.name, elem.value, true));
else
elems.push(encode(elem.name, "", true));
}
else if (elem instanceof Ci.nsIDOMHTMLSelectElement) {
for (let opt of elem.options)
if (opt.selected)
elems.push(encode(elem.name, opt.value));
}
}
if (post)
return { url: url, postData: elems.join('&'), charset: charset, elements: elems };
return { url: url + "?" + elems.join('&'), postData: null, charset: charset, elements: elems };
},
/**
* Generates an XPath expression for the given element.
*
* @returns {string}
*/
get xpath() {
function quote(val) "'" + val.replace(/[\\']/g, "\\$&") + "'";
if (!(this[0] instanceof Ci.nsIDOMElement))
return null;
let res = [];
let doc = this.document;
for (let elem = this[0];; elem = elem.parentNode) {
if (!(elem instanceof Ci.nsIDOMElement))
res.push("");
else if (elem.id)
res.push("id(" + quote(elem.id) + ")");
else {
let name = elem.localName;
if (elem.namespaceURI && (elem.namespaceURI != XHTML || doc.xmlVersion))
if (elem.namespaceURI in DOM.namespaceNames)
name = DOM.namespaceNames[elem.namespaceURI] + ":" + name;
else
name = "*[local-name()=" + quote(name) + " and namespace-uri()=" + quote(elem.namespaceURI) + "]";
res.push(name + "[" + (1 + iter(DOM.XPath("./" + name, elem.parentNode)).indexOf(elem)) + "]");
continue;
}
break;
}
return res.reverse().join("/");
},
/**
* Returns a string or XML representation of this node.
*
* @param {boolean} color If true, return a colored, XML
* representation of this node.
*/
repr: function repr(color) {
function namespaced(node) {
var ns = DOM.namespaceNames[node.namespaceURI] || /^(?:(.*?):)?/.exec(node.name)[1];
if (!ns)
return node.localName;
if (color)
return [["span", { highlight: "HelpXMLNamespace" }, ns],
node.localName];
return ns + ":" + node.localName;
}
let res = [];
this.each(function (elem) {
try {
let hasChildren = elem.firstChild && (!/^\s*$/.test(elem.firstChild) || elem.firstChild.nextSibling);
if (color)
res.push(["span", { highlight: "HelpXML" },
["span", { highlight: "HelpXMLTagStart" },
"<", namespaced(elem), " ",
template.map(elem.attributes,
attr => [
["span", { highlight: "HelpXMLAttribute" }, namespaced(attr)],
["span", { highlight: "HelpXMLString" }, attr.value]
],
" "),
!hasChildren ? "/>" : ">",
],
!hasChildren ? "" :
["", "...",
["span", { highlight: "HtmlTagEnd" }, "<", namespaced(elem), ">"]]
]);
else {
let tag = "<" + [namespaced(elem)].concat(
[namespaced(a) + '="' + String.replace(a.value, /["<]/, DOM.escapeHTML) + '"'
for (a of elem.attributes)]).join(" ");
res.push(tag + (!hasChildren ? "/>" : ">...</" + namespaced(elem) + ">"));
}
}
catch (e) {
res.push({}.toString.call(elem));
}
}, this);
res = template.map(res, util.identity, ",");
return color ? res : res.join("");
},
attr: function attr(key, val) {
return this.attrNS("", key, val);
},
attrNS: function attrNS(ns, key, val) {
if (val !== undefined)
key = Ary.toObject([[key, val]]);
let hooks = this.attrHooks[ns] || {};
if (isObject(key))
return this.each(function (elem, i) {
for (let [k, v] of iter(key)) {
if (callable(v))
v = v.call(this, elem, i);
if (hasOwnProperty(hooks, k) && hooks[k].set)
hooks[k].set.call(this, elem, v, k);
else if (v == null)
elem.removeAttributeNS(ns, k);
else
elem.setAttributeNS(ns, k, v);
}
});
if (!this.length)
return null;
if (hasOwnProperty(hooks, key) && hooks[key].get)
return hooks[key].get.call(this, this[0], key);
if (!this[0].hasAttributeNS(ns, key))
return null;
return this[0].getAttributeNS(ns, key);
},
css: update(function css(key, val) {
if (val !== undefined)
key = Ary.toObject([[key, val]]);
if (isObject(key))
return this.each(function (elem) {
for (let [k, v] of iter(key))
elem.style[css.property(k)] = v;
});
return this[0].style[css.property(key)];
}, {
name: function (property) property.replace(/[A-Z]/g, m0 => "-" + m0.toLowerCase()),
property: function (name) name.replace(/-(.)/g, (m0, m1) => m1.toUpperCase())
}),
append: function append(val) {
return this.eachDOM(val, function (elem, target) {
target.appendChild(elem);
});
},
prepend: function prepend(val) {
return this.eachDOM(val, function (elem, target) {
target.insertBefore(elem, target.firstChild);
});
},
before: function before(val) {
return this.eachDOM(val, function (elem, target) {
target.parentNode.insertBefore(elem, target);
});
},
after: function after(val) {
return this.eachDOM(val, function (elem, target) {
target.parentNode.insertBefore(elem, target.nextSibling);
});
},
appendTo: function appendTo(elem) {
if (!(elem instanceof this.constructor))
elem = this.constructor(elem, this.document);
elem.append(this);
return this;
},
prependTo: function prependTo(elem) {
if (!(elem instanceof this.constructor))
elem = this.constructor(elem, this.document);
elem.prepend(this);
return this;
},
insertBefore: function insertBefore(elem) {
if (!(elem instanceof this.constructor))
elem = this.constructor(elem, this.document);
elem.before(this);
return this;
},
insertAfter: function insertAfter(elem) {
if (!(elem instanceof this.constructor))
elem = this.constructor(elem, this.document);
elem.after(this);
return this;
},
remove: function remove() {
return this.each(function (elem) {
if (elem.parentNode)
elem.parentNode.removeChild(elem);
}, this);
},
empty: function empty() {
return this.each(function (elem) {
while (elem.firstChild)
elem.removeChild(elem.firstChild);
}, this);
},
fragment: function fragment() {
let frag = this.document.createDocumentFragment();
this.appendTo(frag);
return this;
},
clone: function clone(deep)
this.map(elem => elem.cloneNode(deep)),
toggle: function toggle(val, self) {
if (callable(val))
return this.each(function (elem, i) {
this[val.call(self || this, elem, i) ? "show" : "hide"]();
});
if (arguments.length)
return this[val ? "show" : "hide"]();
let hidden = this.map(elem => elem.style.display == "none");
return this.each(function (elem, i) {
this[hidden[i] ? "show" : "hide"]();
});
},
hide: function hide() {
return this.each(function (elem) { elem.style.display = "none"; }, this);
},
show: function show() {
for (let i = 0; i < this.length; i++)
if (!this[i].dactylDefaultDisplay && this[i].style.display)
this[i].style.display = "";
this.each(function (elem) {
if (!elem.dactylDefaultDisplay)
elem.dactylDefaultDisplay = this.style.display;
});
return this.each(function (elem) {
elem.style.display = elem.dactylDefaultDisplay == "none" ? "block" : "";
}, this);
},
createContents: function createContents()
this.each(DOM.createContents, this),
isScrollable: function isScrollable(direction)
this.length && DOM.isScrollable(this[0], direction),
getSet: function getSet(args, get, set) {
if (!args.length)
return this[0] && get.call(this, this[0]);
let [fn, self] = args;
if (!callable(fn))
fn = () => args[0];
return this.each(function (elem, i) {
set.call(this, elem, fn.call(self || this, elem, i));
}, this);
},
html: function html(...args) {
return this.getSet(args,
elem => elem.innerHTML,
util.wrapCallback((elem, val) => { elem.innerHTML = val; }));
},
text: function text(...args) {
return this.getSet(args,
elem => elem.textContent,
(elem, val) => { elem.textContent = val; });
},
val: function val(...args) {
return this.getSet(args,
elem => elem.value,
(elem, val) => { elem.value = val == null ? "" : val; });
},
listen: function listen(event, listener, capture) {
if (isObject(event))
capture = listener;
else
event = Ary.toObject([[event, listener]]);
for (let [evt, callback] of iter(event))
event[evt] = util.wrapCallback(callback, true);
return this.each(function (elem) {
for (let [evt, callback] of iter(event))
elem.addEventListener(evt, callback, capture);
});
},
unlisten: function unlisten(event, listener, capture) {
if (isObject(event))
capture = listener;
else
event = Ary.toObject([[event, listener]]);
return this.each(function (elem) {
for (let [k, v] of iter(event))
elem.removeEventListener(k, v.wrapper || v, capture);
});
},
once: function once(event, listener, capture) {
if (isObject(event))
capture = listener;
else
event = Ary.toObject([[event, listener]]);
for (let pair of iter(event)) {
let [evt, callback] = pair;
event[evt] = util.wrapCallback(function wrapper(event) {
this.removeEventListener(evt, wrapper.wrapper, capture);
return callback.apply(this, arguments);
}, true);
}
return this.each(function (elem) {
for (let [k, v] of iter(event))
elem.addEventListener(k, v, capture);
});
},
dispatch: function dispatch(event, params, extraProps) {
this.canceled = false;
return this.each(function (elem) {
let evt = DOM.Event(this.document, event, params, elem);
if (!DOM.Event.dispatch(elem, evt, extraProps))
this.canceled = true;
}, this);
},
focus: function focus(arg, extra) {
if (callable(arg))
return this.listen("focus", arg, extra);
let elem = this[0];
let flags = arg || services.focus.FLAG_BYMOUSE;
try {
if (elem instanceof Ci.nsIDOMDocument)
elem = elem.defaultView;
if (elem instanceof Ci.nsIDOMElement)
services.focus.setFocus(elem, flags);
else if (elem instanceof Ci.nsIDOMWindow) {
services.focus.focusedWindow = elem;
if (services.focus.focusedWindow != elem)
services.focus.clearFocus(elem);
}
}
catch (e) {
util.dump(elem);
util.reportError(e);
}
return this;
},
blur: function blur(arg, extra) {
if (callable(arg))
return this.listen("blur", arg, extra);
return this.each(function (elem) { elem.blur(); }, this);
},
/**
* Scrolls an element into view if and only if it's not already
* fully visible.
*/
scrollIntoView: function scrollIntoView(alignWithTop) {
return this.each(function (elem) {
function getAlignment(viewport) {
if (alignWithTop !== undefined)
return alignWithTop;
if (rect.bottom < viewport.top)
return true;
if (rect.top > viewport.bottom)
return false;
return Math.abs(rect.top) < Math.abs(viewport.bottom - rect.bottom);
}
let rect;
function fix(parent) {
if (!(parent[0] instanceof Ci.nsIDOMWindow)
&& parent.style.overflow == "visible")
return;
({ rect }) = DOM(elem);
let { viewport } = parent;
let isect = util.intersection(rect, viewport);
if (isect.height < Math.min(viewport.height, rect.height)) {
let { top } = parent.scrollPos();
if (getAlignment(viewport))
parent.scrollPos(null, top - (viewport.top - rect.top));
else
parent.scrollPos(null, top - (viewport.bottom - rect.bottom));
}
}
for (let parent of this.ancestors.items)
fix(parent);
fix(DOM(this.document.defaultView));
});
},
}, {
/**
* Creates an actual event from a pseudo-event object.
*
* The pseudo-event object (such as may be retrieved from
* DOM.Event.parse) should have any properties you want the event to
* have.
*
* @param {Document} doc The DOM document to associate this event with
* @param {Type} type The type of event (keypress, click, etc.)
* @param {Object} opts The pseudo-event. @optional
*/
Event: Class("Event", {
init: function Event(doc, type, opts, target) {
const DEFAULTS = {
HTML: {
type: type, bubbles: true, cancelable: false
},
Key: {
type: type,
bubbles: true, cancelable: true,
view: doc.defaultView,
ctrlKey: false, altKey: false, shiftKey: false, metaKey: false,
keyCode: 0, charCode: 0
},
Mouse: {
type: type,
bubbles: true, cancelable: true,
view: doc.defaultView,
detail: 1,
get screenX() this.view.mozInnerScreenX
+ Math.max(0, this.clientX + (DOM(target || opts.target).rect.left || 0)),
get screenY() this.view.mozInnerScreenY
+ Math.max(0, this.clientY + (DOM(target || opts.target).rect.top || 0)),
clientX: 0,
clientY: 0,
ctrlKey: false, altKey: false, shiftKey: false, metaKey: false,
button: 0,
relatedTarget: null
}
};
opts = opts || {};
var t = this.constructor.types[type] || "";
var evt = doc.createEvent(t + "Events");
let params = DEFAULTS[t || "HTML"];
let args = Object.keys(params);
update(params, this.constructor.defaults[type],
iter.toObject([k, opts[k]]
for (k in opts)
if (k in params)));
apply(evt, "init" + t + "Event", args.map(arg => params[arg]));
return evt;
}
}, {
init: function init() {
// NOTE: the order of ["Esc", "Escape"] or ["Escape", "Esc"]
// matters, so use that string as the first item, that you
// want to refer to within dactyl's source code for
// comparisons like if (key == "<Esc>") { ... }
this.keyTable = {
add: ["+", "Plus", "Add"],
back_quote: ["`"],
back_slash: ["\\"],
back_space: ["BS"],
comma: [","],
count: ["count"],
close_bracket: ["]"],
delete: ["Del"],
equals: ["="],
escape: ["Esc", "Escape"],
insert: ["Insert", "Ins"],
leader: ["Leader"],
left_shift: ["LT", "<"],
nop: ["Nop"],
open_bracket: ["["],
pass: ["Pass"],
period: ["."],
quote: ["'"],
return: ["Return", "CR", "Enter"],
right_shift: [">"],
semicolon: [";"],
slash: ["/"],
space: ["Space", " "],
subtract: ["-", "Minus", "Subtract"]
};
this.key_key = {};
this.code_key = {};
this.key_code = {};
this.code_nativeKey = {};
for (let list of values(this.keyTable))
for (let v of values(list)) {
if (v.length == 1)
v = v.toLowerCase();
this.key_key[v.toLowerCase()] = v;
}
for (let [k, v] of iter(Ci.nsIDOMKeyEvent)) {
if (!/^DOM_VK_/.test(k))
continue;
this.code_nativeKey[v] = k.substr(4);
k = k.substr(7).toLowerCase();
let names = [k.replace(/(^|_)(.)/g, (m, n1, n2) => n2.toUpperCase())
.replace(/^NUMPAD/, "k")];
if (names[0].length == 1)
names[0] = names[0].toLowerCase();
if (k in this.keyTable)
names = this.keyTable[k];
this.code_key[v] = names[0];
for (let name of names) {
this.key_key[name.toLowerCase()] = name;
this.key_code[name.toLowerCase()] = v;
}
}
// HACK: as Gecko does not include an event for <, we must add this in manually.
if (!("<" in this.key_code)) {
this.key_code["<"] = 60;
this.key_code["lt"] = 60;
this.code_key[60] = "lt";
}
return this;
},
code_key: Class.Memoize(function (prop) this.init()[prop]),
code_nativeKey: Class.Memoize(function (prop) this.init()[prop]),
keyTable: Class.Memoize(function (prop) this.init()[prop]),
key_code: Class.Memoize(function (prop) this.init()[prop]),
key_key: Class.Memoize(function (prop) this.init()[prop]),
pseudoKeys: new RealSet(["count", "leader", "nop", "pass"]),
/**
* Converts a user-input string of keys into a canonical
* representation.
*
* <C-A> maps to <C-a>, <C-S-a> maps to <C-S-A>
* <C- > maps to <C-Space>, <S-a> maps to A
* << maps to <lt><lt>
*
* <S-@> is preserved, as in Vim, to allow untypeable key-combinations
* in macros.
*
* canonicalKeys(canonicalKeys(x)) == canonicalKeys(x) for all values
* of x.
*
* @param {string} keys Messy form.
* @param {boolean} unknownOk Whether unknown keys are passed
* through rather than being converted to <lt>keyname>.
* @default true
* @returns {string} Canonical form.
*/
canonicalKeys: function canonicalKeys(keys, unknownOk=true) {
return this.parse(keys, unknownOk).map(this.bound.stringify).join("");
},
iterKeys: function iterKeys(keys) {
return iter(function* () {
let match, re = /<.*?>?>|[^<]/g;
while (match = re.exec(keys))
yield match[0];
}());
},
/**
* Converts an event string into an array of pseudo-event objects.
*
* These objects can be used as arguments to {@link #stringify} or
* {@link DOM.Event}, though they are unlikely to be much use for other
* purposes. They have many of the properties you'd expect to find on a
* real event, but none of the methods.
*
* Also may contain two "special" parameters, .dactylString and
* .dactylShift these are set for characters that can never by
* typed, but may appear in mappings, for example <Nop> is passed as
* dactylString, and dactylShift is set when a user specifies
* <S-@> where @ is a non-case-changeable, non-space character.
*
* @param {string} keys The string to parse.
* @param {boolean} unknownOk Whether unknown keys are passed
* through rather than being converted to <lt>keyname>.
* @default true
* @returns {Array[Object]}
*/
parse: function parse(input, unknownOk=true) {
if (isArray(input))
return Ary.flatten(input.map(k => this.parse(k, unknownOk)));
let out = [];
for (let match of util.regexp.iterate(/<.*?>?>|[^<]|<(?!.*>)/g, input)) {
let evt_str = match[0];
let evt_obj = { ctrlKey: false, shiftKey: false, altKey: false, metaKey: false,
keyCode: 0, charCode: 0, type: "keypress" };
if (evt_str.length == 1) {
evt_obj.charCode = evt_str.charCodeAt(0);
evt_obj._keyCode = this.key_code[evt_str[0].toLowerCase()];
evt_obj.shiftKey = evt_str !== evt_str.toLowerCase();
}
else {
let [match, modifier, keyname] = evt_str.match(/^<((?:[*12CASM⌘]-)*)(.+?)>$/i) || [false, '', ''];
modifier = new RealSet(modifier.toUpperCase());
keyname = keyname.toLowerCase();
evt_obj.dactylKeyname = keyname;
if (/^u[0-9a-f]+$/.test(keyname))
keyname = String.fromCharCode(parseInt(keyname.substr(1), 16));
if (keyname && (unknownOk || keyname.length == 1 || /mouse$/.test(keyname) ||
this.key_code[keyname] || this.pseudoKeys.has(keyname))) {
evt_obj.globKey = modifier.has("*");
evt_obj.ctrlKey = modifier.has("C");
evt_obj.altKey = modifier.has("A");
evt_obj.shiftKey = modifier.has("S");
evt_obj.metaKey = modifier.has("M") || modifier.has("⌘");
evt_obj.dactylShift = evt_obj.shiftKey;
if (keyname.length == 1) { // normal characters
if (evt_obj.shiftKey)
keyname = keyname.toUpperCase();
evt_obj.dactylShift = evt_obj.shiftKey && keyname.toUpperCase() == keyname.toLowerCase();
evt_obj.charCode = keyname.charCodeAt(0);
evt_obj.keyCode = this.key_code[keyname.toLowerCase()];
}
else if (this.pseudoKeys.has(keyname)) {
evt_obj.dactylString = "<" + this.key_key[keyname] + ">";
}
else if (/mouse$/.test(keyname)) { // mouse events
evt_obj.type = (modifier.has("2") ? "dblclick" : "click");
evt_obj.button = ["leftmouse", "middlemouse", "rightmouse"].indexOf(keyname);
delete evt_obj.keyCode;
delete evt_obj.charCode;
}
else { // spaces, control characters, and <
evt_obj.keyCode = this.key_code[keyname];
evt_obj.charCode = 0;
}
}
else { // an invalid sequence starting with <, treat as a literal
out = out.concat(this.parse("<lt>" + evt_str.substr(1)));
continue;
}
}
// TODO: make a list of characters that need keyCode and charCode somewhere
if (evt_obj.keyCode == 32 || evt_obj.charCode == 32)
evt_obj.charCode = evt_obj.keyCode = 32; // <Space>
if (evt_obj.keyCode == 60 || evt_obj.charCode == 60)
evt_obj.charCode = evt_obj.keyCode = 60; // <lt>
evt_obj.modifiers = (evt_obj.ctrlKey && Ci.nsIDOMNSEvent.CONTROL_MASK)
| (evt_obj.altKey && Ci.nsIDOMNSEvent.ALT_MASK)
| (evt_obj.shiftKey && Ci.nsIDOMNSEvent.SHIFT_MASK)
| (evt_obj.metaKey && Ci.nsIDOMNSEvent.META_MASK);
out.push(evt_obj);
}
return out;
},
/**
* Converts the specified event to a string in dactyl key-code
* notation. Returns null for an unknown event.
*
* @param {Event} event
* @returns {string}
*/
stringify: function stringify(event) {
if (isArray(event))
return event.map(e => this.stringify(e)).join("");
if (event.dactylString)
return event.dactylString;
let key = null;
let modifier = "";
if (event.globKey)
modifier += "*-";
if (event.ctrlKey)
modifier += "C-";
if (event.altKey)
modifier += "A-";
if (event.metaKey)
modifier += "M-";
if (/^key/.test(event.type)) {
let charCode = event.type == "keyup" ? 0 : event.charCode; // Why? --Kris
if (charCode == 0) {
if (event.keyCode in this.code_key) {
key = this.code_key[event.keyCode];
if (event.shiftKey && (key.length > 1 || key.toUpperCase() == key.toLowerCase()
|| event.ctrlKey || event.altKey || event.metaKey)
|| event.dactylShift)
modifier += "S-";
else if (!modifier && key.length === 1)
if (event.shiftKey)
key = key.toUpperCase();
else
key = key.toLowerCase();
if (!modifier && key.length == 1)
return key;
}
}
// [Ctrl-Bug] special handling of mysterious <C-[>, <C-\\>, <C-]>, <C-^>, <C-_> bugs (OS/X)
// (i.e., cntrl codes 27--31)
// ---
// For more information, see:
// [*] Referenced mailing list msg: http://www.mozdev.org/pipermail/pentadactyl/2008-May/001548.html
// [*] Mozilla bug 416227: event.charCode in keypress handler has unexpected values on Mac for Ctrl with chars in "[ ] _ \"
// https://bugzilla.mozilla.org/show_bug.cgi?id=416227
// [*] Mozilla bug 432951: Ctrl+'foo' doesn't seem same charCode as Meta+'foo' on Cocoa
// https://bugzilla.mozilla.org/show_bug.cgi?id=432951
// ---
//
// The following fixes are only activated if config.OS.isMacOSX.
// Technically, they prevent mappings from <C-Esc> (and
// <C-C-]> if your fancy keyboard permits such things<?>), but
// these <C-control> mappings are probably pathological (<C-Esc>
// certainly is on Windows), and so it is probably
// harmless to remove the config.OS.isMacOSX if desired.
//
else if (config.OS.isMacOSX && event.ctrlKey && charCode >= 27 && charCode <= 31) {
if (charCode == 27) { // [Ctrl-Bug 1/5] the <C-[> bug
key = "Esc";
modifier = modifier.replace("C-", "");
}
else // [Ctrl-Bug 2,3,4,5/5] the <C-\\>, <C-]>, <C-^>, <C-_> bugs
key = String.fromCharCode(charCode + 64);
}
// a normal key like a, b, c, 0, etc.
else if (charCode) {
key = String.fromCharCode(charCode);
if (!/^[^<\s]$/i.test(key) && key in this.key_code) {
// a named charCode key (<Space> and <lt>) space can be shifted, <lt> must be forced
if ((key.match(/^\s$/) && event.shiftKey) || event.dactylShift)
modifier += "S-";
key = this.code_key[this.key_code[key]];
}
else {
// a shift modifier is only allowed if the key is alphabetical and used in a C-A-M- mapping in the uppercase,
// or if the shift has been forced for a non-alphabetical character by the user while :map-ping
if (key !== key.toLowerCase() && (event.ctrlKey || event.altKey || event.metaKey) || event.dactylShift)
modifier += "S-";
if (/^\s$/.test(key)) {
let s = charCode.toString(16);
key = "U" + "0000".substr(4 - s.length) + s;
}
else if (modifier.length == 0)
return key;
}
}
if (key == null) {
if (event.shiftKey)
modifier += "S-";
key = this.key_key[event.dactylKeyname] || event.dactylKeyname;
}
if (key == null)
return null;
}
else if (event.type == "click" || event.type == "dblclick") {
if (event.shiftKey)
modifier += "S-";
if (event.type == "dblclick")
modifier += "2-";
// TODO: triple and quadruple click
switch (event.button) {
case 0:
key = "LeftMouse";
break;
case 1:
key = "MiddleMouse";
break;
case 2:
key = "RightMouse";
break;
}
}
if (key == null)
return null;
return "<" + modifier + key + ">";
},
defaults: {
load: { bubbles: false },
submit: { cancelable: true }
},
types: Class.Memoize(() => iter(
{
Mouse: "click mousedown mouseout mouseover mouseup dblclick " +
"hover " +
"popupshowing popupshown popuphiding popuphidden " +
"contextmenu",
Key: "keydown keypress keyup",
"": "change command dactyl-input input submit " +
"load unload pageshow pagehide DOMContentLoaded " +
"resize scroll"
}
).map(([k, v]) => v.split(" ").map(v => [v, k]))
.flatten()
.toObject()),
/**
* Dispatches an event to an element as if it were a native event.
*
* @param {Node} target The DOM node to which to dispatch the event.
* @param {Event} event The event to dispatch.
*/
dispatch: function dispatch(target, event, extra) {
try {
this.feedingEvent = extra;
if (target instanceof Ci.nsIDOMElement)
return (target.ownerDocument || target.document || target).defaultView
.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils)
.dispatchDOMEventViaPresShell(target, event, true);
else {
target.dispatchEvent(event);
return !event.defaultPrevented;
}
}
catch (e) {
util.reportError(e);
}
finally {
this.feedingEvent = null;
}
}
}),
createContents: Class.Memoize(() => services.has("dactyl") && services.dactyl.createContents
|| (elem => {})),
isScrollable: Class.Memoize(() => services.has("dactyl") && services.dactyl.getScrollable
? (elem, dir) => services.dactyl.getScrollable(elem) & (dir ? services.dactyl["DIRECTION_" + dir.toUpperCase()] : ~0)
: (elem, dir) => true),
isJSONXML: function isJSONXML(val) isArray(val) && isinstance(val[0], ["String", "Array", "XML", DOM.DOMString])
|| isObject(val) && "toDOM" in val,
DOMString: function DOMString(val) ({
__proto__: DOMString.prototype,
toDOM: function toDOM(doc) doc.createTextNode(val),
toString: function () val
}),
/**
* The set of input element type attribute values that mark the element as
* an editable field.
*/
editableInputs: new RealSet(["date", "datetime", "datetime-local", "email", "file",
"month", "number", "password", "range", "search",
"tel", "text", "time", "url", "week"]),
/**
* Converts a given DOM Node, Range, or Selection to a string. If
* *html* is true, the output is HTML, otherwise it is presentation
* text.
*
* @param {nsIDOMNode | nsIDOMRange | nsISelection} node The node to
* stringify.
* @param {boolean} html Whether the output should be HTML rather
* than presentation text.
*/
stringify: function stringify(node, html) {
if (node instanceof Ci.nsISelection && node.isCollapsed)
return "";
if (node instanceof Ci.nsIDOMNode) {
let range = node.ownerDocument.createRange();
range.selectNode(node);
node = range;
}
let doc = (node.getRangeAt ? node.getRangeAt(0) : node).startContainer;
doc = doc.ownerDocument || doc;
let encoder = services.HtmlEncoder();
encoder.init(doc, "text/unicode", encoder.OutputRaw|encoder.OutputPreformatted);
if (node instanceof Ci.nsISelection)
encoder.setSelection(node);
else if (node instanceof Ci.nsIDOMRange)
encoder.setRange(node);
let str = services.String(encoder.encodeToString());
if (html)
return str.data;
let [result, length] = [{}, {}];
services.HtmlConverter().convert("text/html", str, str.data.length*2, "text/unicode", result, length);
return result.value.QueryInterface(Ci.nsISupportsString).data;
},
/**
* Compiles a CSS spec and XPath pattern matcher based on the given
* list. List elements prefixed with "xpath:" are parsed as XPath
* patterns, while other elements are parsed as CSS specs. The
* returned function will, given a node, return an iterator of all
* descendants of that node which match the given specs.
*
* @param {[string]} list The list of patterns to match.
* @returns {function(Node)}
*/
compileMatcher: function compileMatcher(list) {
let xpath = [], css = [];
for (let elem of values(list))
if (/^xpath:/.test(elem))
xpath.push(elem.substr(6));
else
css.push(elem);
return update(
function* matcher(node) {
if (matcher.xpath)
for (let elem of DOM.XPath(matcher.xpath, node))
yield elem;
if (matcher.css)
for (let elem of util.withProperErrors("querySelectorAll", node, matcher.css))
yield elem;
}, {
css: css.join(", "),
xpath: xpath.join(" | ")
});
},
/**
* Validates a list as input for {@link #compileMatcher}. Returns
* true if and only if every element of the list is a valid XPath or
* CSS selector.
*
* @param {[string]} list The list of patterns to test
* @returns {boolean} True when the patterns are all valid.
*/
validateMatcher: function validateMatcher(list) {
return this.testValues(list, DOM.bound.testMatcher);
},
testMatcher: function testMatcher(value) {
let evaluator = services.XPathEvaluator();
let node = services.XMLDocument();
if (/^xpath:/.test(value))
util.withProperErrors("createExpression", evaluator, value.substr(6), DOM.XPath.resolver);
else
util.withProperErrors("querySelector", node, value);
return true;
},
/**
* Converts HTML special characters in *str* to the equivalent HTML
* entities.
*
* @param {string} str
* @param {boolean} simple If true, only escape for the simple case
* of text nodes.
* @returns {string}
*/
escapeHTML: function escapeHTML(str, simple) {
let map = { "'": "&apos;", '"': "&quot;", "%": "&#x25;", "&": "&amp;", "<": "&lt;", ">": "&gt;" };
let regexp = simple ? /[<>]/g : /['"&<>]/g;
return str.replace(regexp, m => map[m]);
},
fromJSON: update(function fromJSON(xml, doc, nodes, namespaces) {
if (!doc)
doc = document;
function tag(args, namespaces) {
let _namespaces = namespaces;
// Deal with common error case
if (args == null) {
util.reportError(Error("Unexpected null when processing XML."));
args = ["html:i", {}, "[NULL]"];
}
if (isinstance(args, ["String", "Number", "Boolean", _]))
return doc.createTextNode(args);
if (isObject(args) && "toDOM" in args)
return args.toDOM(doc, namespaces, nodes);
if (args instanceof Ci.nsIDOMNode)
return args;
if (args instanceof DOM)
return args.fragment();
if ("toJSONXML" in args)
args = args.toJSONXML();
let [name, attr] = args;
if (!isString(name) || args.length == 0 || name === "") {
var frag = doc.createDocumentFragment();
Array.forEach(args, function (arg) {
if (!isArray(arg[0]))
arg = [arg];
arg.forEach(function (arg) {
frag.appendChild(tag(arg, namespaces));
});
});
return frag;
}
attr = attr || {};
function parseNamespace(name) DOM.parseNamespace(name, namespaces);
// FIXME: Surely we can do better.
for (var key in attr) {
if (/^xmlns(?:$|:)/.test(key)) {
if (_namespaces === namespaces)
namespaces = Object.create(namespaces);
namespaces[key.substr(6)] = namespaces[attr[key]] || attr[key];
}}
var args = Array.slice(args, 2);
var vals = parseNamespace(name);
var elem = doc.createElementNS(vals[0] || namespaces[""],
name);
for (var key in attr)
if (!/^xmlns(?:$|:)/.test(key)) {
var val = attr[key];
if (nodes && key == "key")
nodes[val] = elem;
vals = parseNamespace(key);
if (key == "highlight")
;
else if (typeof val == "function")
elem.addEventListener(key.replace(/^on/, ""), val, false);
else
elem.setAttributeNS(vals[0] || "", key, val);
}
args.forEach(function (e) {
elem.appendChild(tag(e, namespaces));
});
if ("highlight" in attr)
highlight.highlightNode(elem, attr.highlight, nodes || true);
return elem;
}
if (namespaces)
namespaces = update({}, fromJSON.namespaces, namespaces);
else
namespaces = fromJSON.namespaces;
return tag(xml, namespaces);
}, {
namespaces: {
"": "http://www.w3.org/1999/xhtml",
dactyl: String(NS),
html: "http://www.w3.org/1999/xhtml",
xmlns: "http://www.w3.org/2000/xmlns/",
xul: "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
}
}),
toXML: function toXML(xml) {
// Meh. For now.
let doc = services.XMLDocument();
let node = this.fromJSON(xml, doc);
return services.XMLSerializer()
.serializeToString(node);
},
toPrettyXML: function toPrettyXML(xml, asXML, indent, namespaces) {
const INDENT = indent || " ";
const EMPTY = new RealSet("area base basefont br col frame hr img input isindex link meta param"
.split(" "));
function namespaced(namespaces, namespace, localName) {
for (let [k, v] of iter(namespaces))
if (v == namespace)
return (k ? k + ":" + localName : localName);
throw Error("No such namespace");
}
function isFragment(args) !isString(args[0]) || args.length == 0 || args[0] === "";
function hasString(args) {
return args.some(a => (isString(a) || isFragment(a) && hasString(a)));
}
const STRING_TYPES = ["String", "Number", "Boolean", _, DOM.DOMString];
function isStrings(args) {
if (!isArray(args))
return util.dump("ARGS: " + {}.toString.call(args) + " " + args), false;
return args.every(a => (isinstance(a, STRING_TYPES) || isFragment(a) && isStrings(a)));
}
function tag(args, namespaces, indent) {
let _namespaces = namespaces;
if (args == "")
return "";
if (isinstance(args, STRING_TYPES))
return indent +
DOM.escapeHTML(String(args), true);
if (isObject(args) && "toDOM" in args)
return indent +
services.XMLSerializer()
.serializeToString(args.toDOM(services.XMLDocument()))
.replace(/^/m, indent);
if (args instanceof Ci.nsIDOMNode)
return indent +
services.XMLSerializer()
.serializeToString(args)
.replace(/^/m, indent);
if ("toJSONXML" in args)
args = args.toJSONXML();
// Deal with common error case
if (args == null) {
util.reportError(Error("Unexpected null when processing XML."));
return "[NULL]";
}
let [name, attr] = args;
if (isFragment(args)) {
let res = [];
let join = isArray(args) && isStrings(args) ? "" : "\n";
Array.forEach(args, function (arg) {
if (!isArray(arg[0]))
arg = [arg];
let contents = [];
arg.forEach(function (arg) {
let string = tag(arg, namespaces, indent);
if (string)
contents.push(string);
});
if (contents.length)
res.push(contents.join("\n"), join);
});
if (res[res.length - 1] == join)
res.pop();
return res.join("");
}
attr = attr || {};
function parseNamespace(name) {
var m = /^(?:(.*):)?(.*)$/.exec(name);
return [namespaces[m[1]], m[2]];
}
// FIXME: Surely we can do better.
let skipAttr = {};
for (var key in attr) {
if (/^xmlns(?:$|:)/.test(key)) {
if (_namespaces === namespaces)
namespaces = update({}, namespaces);
let ns = namespaces[attr[key]] || attr[key];
if (ns == namespaces[key.substr(6)])
skipAttr[key] = true;
attr[key] = namespaces[key.substr(6)] = ns;
}}
var args = Array.slice(args, 2);
var vals = parseNamespace(name);
let res = [indent, "<", name];
for (let [key, val] of iter(attr)) {
if (hasOwnProperty(skipAttr, key))
continue;
let vals = parseNamespace(key);
if (typeof val == "function") {
key = key.replace(/^(?:on)?/, "on");
val = val.toSource() + "(event)";
}
if (key != "highlight" || vals[0] == String(NS))
res.push(" ", key, '="', DOM.escapeHTML(val), '"');
else
res.push(" ", namespaced(namespaces, String(NS), "highlight"),
'="', DOM.escapeHTML(val), '"');
}
if ((vals[0] || namespaces[""]) == String(XHTML) && EMPTY.has(vals[1])
|| asXML && !args.length)
res.push("/>");
else {
res.push(">");
if (isStrings(args))
res.push(args.map(e => tag(e, namespaces, "")).join(""),
"</", name, ">");
else {
let contents = [];
args.forEach(function (e) {
let string = tag(e, namespaces, indent + INDENT);
if (string)
contents.push(string);
});
res.push("\n", contents.join("\n"), "\n", indent, "</", name, ">");
}
}
return res.join("");
}
if (namespaces)
namespaces = update({}, DOM.fromJSON.namespaces, namespaces);
else
namespaces = DOM.fromJSON.namespaces;
return tag(xml, namespaces, "");
},
parseNamespace: function parseNamespace(name, namespaces) {
if (name == "xmlns")
return [DOM.fromJSON.namespaces.xmlns, "xmlns"];
var m = /^(?:(.*):)?(.*)$/.exec(name);
return [(namespaces || DOM.fromJSON.namespaces)[m[1]],
m[2]];
},
/**
* Evaluates an XPath expression in the current or provided
* document. It provides the xhtml, xhtml2 and dactyl XML
* namespaces. The result may be used as an iterator.
*
* @param {string} expression The XPath expression to evaluate.
* @param {Node} elem The context element.
* @param {boolean} asIterator Whether to return the results as an
* XPath iterator.
* @param {object} namespaces Additional namespaces to recognize.
* @optional
* @returns {Object} Iterable result of the evaluation.
*/
XPath: update(
function XPath(expression, elem, asIterator, namespaces) {
try {
let doc = elem.ownerDocument || elem;
if (isArray(expression))
expression = DOM.makeXPath(expression);
let resolver = XPath.resolver;
if (namespaces) {
namespaces = update({}, DOM.namespaces, namespaces);
resolver = prefix => namespaces[prefix] || null;
}
let result = doc.evaluate(expression, elem,
resolver,
asIterator ? Ci.nsIDOMXPathResult.ORDERED_NODE_ITERATOR_TYPE : Ci.nsIDOMXPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
null
);
let res = {
iterateNext: function () result.iterateNext(),
get resultType() result.resultType,
get snapshotLength() result.snapshotLength,
snapshotItem: function (i) result.snapshotItem(i),
}
if (asIterator)
res[Symbol.iterator] = function* () {
let elem;
while ((elem = this.iterateNext()))
yield elem;
};
else
res[Symbol.iterator] = function* () {
for (let i = 0; i < this.snapshotLength; i++)
yield this.snapshotItem(i);
};
return res;
}
catch (e) {
throw e.stack ? e : Error(e);
}
},
{
resolver: function lookupNamespaceURI(prefix) (DOM.namespaces[prefix] || null)
}),
/**
* Returns an XPath union expression constructed from the specified node
* tests. An expression is built with node tests for both the null and
* XHTML namespaces. See {@link DOM.XPath}.
*
* @param nodes {Array(string)}
* @returns {string}
*/
makeXPath: function makeXPath(nodes) {
return Ary(nodes).map(util.debrace).flatten()
.map(node => /^[a-z]+:/.test(node) ? node
: [node, "xhtml:" + node])
.flatten()
.map(node => "//" + node).join(" | ");
},
namespaces: {
xul: XUL,
xhtml: XHTML,
html: XHTML,
xhtml2: "http://www.w3.org/2002/06/xhtml2",
dactyl: NS
},
namespaceNames: Class.Memoize(function ()
iter(this.namespaces).map(([k, v]) => ([v, k])).toObject()),
});
Object.keys(DOM.Event.types).forEach(function (event) {
let name = event.replace(/-(.)/g, (m, m1) => m1.toUpperCase());
if (!hasOwnProperty(DOM.prototype, name))
DOM.prototype[name] =
function _event(arg, extra) {
return this[callable(arg) ? "listen" : "dispatch"](event, arg, extra);
};
});
var $ = DOM;
endModule();
// catch(e){ if (!e.stack) e = Error(e); dump(e.fileName+":"+e.lineNumber+": "+e+"\n" + e.stack); }
// vim: set fdm=marker sw=4 sts=4 ts=8 et ft=javascript: