mirror of
https://github.com/gryf/pentadactyl-pm.git
synced 2025-12-19 06:10:18 +01:00
393 lines
14 KiB
JavaScript
393 lines
14 KiB
JavaScript
// Copyright (c) 2009-2011 by 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";
|
|
|
|
try {
|
|
|
|
Components.utils.import("resource://dactyl/bootstrap.jsm");
|
|
defineModule("overlay", {
|
|
exports: ["overlay"],
|
|
require: ["util"]
|
|
}, this);
|
|
|
|
var getAttr = function getAttr(elem, ns, name)
|
|
elem.hasAttributeNS(ns, name) ? elem.getAttributeNS(ns, name) : null;
|
|
var setAttr = function setAttr(elem, ns, name, val) {
|
|
if (val == null)
|
|
elem.removeAttributeNS(ns, name);
|
|
else
|
|
elem.setAttributeNS(ns, name, val);
|
|
}
|
|
|
|
var Overlay = Class("Overlay", {
|
|
init: function init(window) {
|
|
this.window = window;
|
|
},
|
|
|
|
cleanups: Class.Memoize(function () []),
|
|
objects: Class.Memoize(function () ({})),
|
|
|
|
get doc() this.window.document,
|
|
|
|
get win() this.window,
|
|
|
|
$: function $(sel, node) DOM(sel, node || this.doc),
|
|
|
|
cleanup: function cleanup(window, reason) {
|
|
for (let fn in values(this.cleanups))
|
|
util.trapErrors(fn, this, window, reason);
|
|
}
|
|
});
|
|
|
|
|
|
var Overlay = Module("Overlay", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]), {
|
|
init: function init() {
|
|
util.addObserver(this);
|
|
this.overlays = {};
|
|
|
|
this.onWindowVisible = [];
|
|
},
|
|
|
|
id: Class.Memoize(function () config.addon.id),
|
|
|
|
/**
|
|
* Adds an event listener for this session and removes it on
|
|
* dactyl shutdown.
|
|
*
|
|
* @param {Element} target The element on which to listen.
|
|
* @param {string} event The event to listen for.
|
|
* @param {function} callback The function to call when the event is received.
|
|
* @param {boolean} capture When true, listen during the capture
|
|
* phase, otherwise during the bubbling phase.
|
|
* @param {boolean} allowUntrusted When true, allow capturing of
|
|
* untrusted events.
|
|
*/
|
|
listen: function (target, event, callback, capture, allowUntrusted) {
|
|
let doc = target.ownerDocument || target.document || target;
|
|
let listeners = this.getData(doc, "listeners");
|
|
|
|
if (!isObject(event))
|
|
var [self, events] = [null, array.toObject([[event, callback]])];
|
|
else
|
|
[self, events] = [event, event[callback || "events"]];
|
|
|
|
for (let [event, callback] in Iterator(events)) {
|
|
let args = [Cu.getWeakReference(target),
|
|
event,
|
|
util.wrapCallback(callback, self),
|
|
capture,
|
|
allowUntrusted];
|
|
|
|
target.addEventListener.apply(target, args.slice(1));
|
|
listeners.push(args);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Remove an event listener.
|
|
*
|
|
* @param {Element} target The element on which to listen.
|
|
* @param {string} event The event to listen for.
|
|
* @param {function} callback The function to call when the event is received.
|
|
* @param {boolean} capture When true, listen during the capture
|
|
* phase, otherwise during the bubbling phase.
|
|
*/
|
|
unlisten: function (target, event, callback, capture) {
|
|
let doc = target.ownerDocument || target.document || target;
|
|
let listeners = this.getData(doc, "listeners");
|
|
if (event === true)
|
|
target = null;
|
|
|
|
this.setData(doc, "listeners", listeners.filter(function (args) {
|
|
if (target == null || args[0].get() == target && args[1] == event && args[2].wrapped == callback && args[3] == capture) {
|
|
args[0].get().removeEventListener.apply(args[0].get(), args.slice(1));
|
|
return false;
|
|
}
|
|
return !args[0].get();
|
|
}));
|
|
},
|
|
|
|
cleanup: function cleanup(reason) {
|
|
for (let doc in util.iterDocuments()) {
|
|
for (let elem in values(this.getData(doc, "overlayElements")))
|
|
if (elem.parentNode)
|
|
elem.parentNode.removeChild(elem);
|
|
|
|
for (let [elem, ns, name, orig, value] in values(this.getData(doc, "overlayAttributes")))
|
|
if (getAttr(elem, ns, name) === value)
|
|
setAttr(elem, ns, name, orig);
|
|
|
|
for (let callback in values(this.getData(doc, "cleanup")))
|
|
util.trapErrors(callback, doc, reason);
|
|
|
|
this.unlisten(doc, true);
|
|
|
|
delete doc[this.id];
|
|
delete doc.defaultView[this.id];
|
|
}
|
|
},
|
|
|
|
observers: {
|
|
"toplevel-window-ready": function (window, data) {
|
|
window.addEventListener("DOMContentLoaded", util.wrapCallback(function listener(event) {
|
|
if (event.originalTarget === window.document) {
|
|
window.removeEventListener("DOMContentLoaded", listener.wrapper, true);
|
|
overlay._loadOverlays(window);
|
|
}
|
|
}), true);
|
|
},
|
|
"chrome-document-global-created": function (window, uri) { this.observe(window, "toplevel-window-ready", null); },
|
|
"content-document-global-created": function (window, uri) { this.observe(window, "toplevel-window-ready", null); },
|
|
"xul-window-visible": function () {
|
|
if (this.onWindowVisible)
|
|
this.onWindowVisible.forEach(function (f) f.call(this), this);
|
|
this.onWindowVisible = null;
|
|
}
|
|
},
|
|
|
|
getData: function getData(obj, key, constructor) {
|
|
let { id } = this;
|
|
|
|
if (!(id in obj && obj[id]))
|
|
obj[id] = {};
|
|
|
|
if (arguments.length == 1)
|
|
return obj[id];
|
|
|
|
if (obj[id][key] === undefined)
|
|
if (constructor === undefined || callable(constructor))
|
|
obj[id][key] = (constructor || Array)();
|
|
else
|
|
obj[id][key] = constructor;
|
|
|
|
return obj[id][key];
|
|
},
|
|
|
|
setData: function setData(obj, key, val) {
|
|
let { id } = this;
|
|
|
|
if (!(id in obj))
|
|
obj[id] = {};
|
|
|
|
return obj[id][key] = val;
|
|
},
|
|
|
|
overlayWindow: function (url, fn) {
|
|
if (url instanceof Ci.nsIDOMWindow)
|
|
overlay._loadOverlay(url, fn);
|
|
else {
|
|
Array.concat(url).forEach(function (url) {
|
|
if (!this.overlays[url])
|
|
this.overlays[url] = [];
|
|
this.overlays[url].push(fn);
|
|
}, this);
|
|
|
|
for (let doc in util.iterDocuments())
|
|
if (~["interactive", "complete"].indexOf(doc.readyState)) {
|
|
this.observe(doc.defaultView, "xul-window-visible");
|
|
this._loadOverlays(doc.defaultView);
|
|
}
|
|
else {
|
|
if (!this.onWindowVisible)
|
|
this.onWindowVisible = [];
|
|
this.observe(doc.defaultView, "toplevel-window-ready");
|
|
}
|
|
}
|
|
},
|
|
|
|
_loadOverlays: function _loadOverlays(window) {
|
|
let overlays = this.getData(window, "overlays");
|
|
|
|
for each (let obj in overlay.overlays[window.document.documentURI] || []) {
|
|
if (~overlays.indexOf(obj))
|
|
continue;
|
|
overlays.push(obj);
|
|
this._loadOverlay(window, obj(window));
|
|
}
|
|
},
|
|
|
|
_loadOverlay: function _loadOverlay(window, obj) {
|
|
let doc = window.document;
|
|
let elems = this.getData(doc, "overlayElements");
|
|
let attrs = this.getData(doc, "overlayAttributes");
|
|
|
|
function insert(key, fn) {
|
|
if (obj[key]) {
|
|
let iterator = Iterator(obj[key]);
|
|
if (!isObject(obj[key]))
|
|
iterator = ([elem.@id, elem.elements(), elem.@*::*.(function::name() != "id")] for each (elem in obj[key]));
|
|
|
|
for (let [elem, xml, attr] in iterator) {
|
|
if (elem = doc.getElementById(elem)) {
|
|
let node = DOM.fromXML(xml, doc, obj.objects);
|
|
if (!(node instanceof Ci.nsIDOMDocumentFragment))
|
|
elems.push(node);
|
|
else
|
|
for (let n in array.iterValues(node.childNodes))
|
|
elems.push(n);
|
|
|
|
fn(elem, node);
|
|
for each (let attr in attr || []) {
|
|
let ns = attr.namespace(), name = attr.localName();
|
|
attrs.push([elem, ns, name, getAttr(elem, ns, name), String(attr)]);
|
|
if (attr.name() != "highlight")
|
|
elem.setAttributeNS(ns, name, String(attr));
|
|
else
|
|
highlight.highlightNode(elem, String(attr));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
insert("before", function (elem, dom) elem.parentNode.insertBefore(dom, elem));
|
|
insert("after", function (elem, dom) elem.parentNode.insertBefore(dom, elem.nextSibling));
|
|
insert("append", function (elem, dom) elem.appendChild(dom));
|
|
insert("prepend", function (elem, dom) elem.insertBefore(dom, elem.firstChild));
|
|
if (obj.ready)
|
|
util.trapErrors("ready", obj, window);
|
|
|
|
function load(event) {
|
|
util.trapErrors("load", obj, window, event);
|
|
if (obj.visible)
|
|
if (!event || !overlay.onWindowVisible || window != util.topWindow(window))
|
|
util.trapErrors("visible", obj, window);
|
|
else
|
|
overlay.onWindowVisible.push(function () { obj.visible(window) });
|
|
}
|
|
|
|
if (obj.load)
|
|
if (doc.readyState === "complete")
|
|
load();
|
|
else
|
|
window.addEventListener("load", util.wrapCallback(function onLoad(event) {
|
|
if (event.originalTarget === doc) {
|
|
window.removeEventListener("load", onLoad.wrapper, true);
|
|
load(event);
|
|
}
|
|
}), true);
|
|
|
|
if (obj.unload || obj.cleanup)
|
|
this.listen(window, "unload", function unload(event) {
|
|
if (event.originalTarget === doc) {
|
|
overlay.unlisten(window, "unload", unload);
|
|
if (obj.unload)
|
|
util.trapErrors("unload", obj, window, event);
|
|
|
|
if (obj.cleanup)
|
|
util.trapErrors("cleanup", obj, window, "unload", event);
|
|
}
|
|
});
|
|
|
|
if (obj.cleanup)
|
|
this.getData(doc, "cleanup").push(bind("cleanup", obj, window));
|
|
},
|
|
|
|
/**
|
|
* Overlays an object with the given property overrides. Each
|
|
* property in *overrides* is added to *object*, replacing any
|
|
* original value. Functions in *overrides* are augmented with the
|
|
* new properties *super*, *supercall*, and *superapply*, in the
|
|
* same manner as class methods, so that they may call their
|
|
* overridden counterparts.
|
|
*
|
|
* @param {object} object The object to overlay.
|
|
* @param {object} overrides An object containing properties to
|
|
* override.
|
|
* @returns {function} A function which, when called, will remove
|
|
* the overlay.
|
|
*/
|
|
overlayObject: function (object, overrides) {
|
|
let original = Object.create(object);
|
|
overrides = update(Object.create(original), overrides);
|
|
|
|
Object.getOwnPropertyNames(overrides).forEach(function (k) {
|
|
let orig, desc = Object.getOwnPropertyDescriptor(overrides, k);
|
|
if (desc.value instanceof Class.Property)
|
|
desc = desc.value.init(k) || desc.value;
|
|
|
|
if (k in object) {
|
|
for (let obj = object; obj && !orig; obj = Object.getPrototypeOf(obj))
|
|
if (orig = Object.getOwnPropertyDescriptor(obj, k))
|
|
Object.defineProperty(original, k, orig);
|
|
|
|
if (!orig)
|
|
if (orig = Object.getPropertyDescriptor(object, k))
|
|
Object.defineProperty(original, k, orig);
|
|
}
|
|
|
|
// Guard against horrible add-ons that use eval-based monkey
|
|
// patching.
|
|
let value = desc.value;
|
|
if (callable(desc.value)) {
|
|
|
|
delete desc.value;
|
|
delete desc.writable;
|
|
desc.get = function get() value;
|
|
desc.set = function set(val) {
|
|
if (!callable(val) || Function.prototype.toString(val).indexOf(sentinel) < 0)
|
|
Class.replaceProperty(this, k, val);
|
|
else {
|
|
let package_ = util.newURI(Components.stack.caller.filename).host;
|
|
util.reportError(Error(_("error.monkeyPatchOverlay", package_)));
|
|
util.dactyl.echoerr(_("error.monkeyPatchOverlay", package_));
|
|
}
|
|
};
|
|
}
|
|
|
|
try {
|
|
Object.defineProperty(object, k, desc);
|
|
|
|
if (callable(value)) {
|
|
var sentinel = "(function DactylOverlay() {}())"
|
|
value.toString = function toString() toString.toString.call(this).replace(/\}?$/, sentinel + "; $&");
|
|
value.toSource = function toSource() toSource.toSource.call(this).replace(/\}?$/, sentinel + "; $&");
|
|
}
|
|
}
|
|
catch (e) {
|
|
try {
|
|
if (value) {
|
|
object[k] = value;
|
|
return;
|
|
}
|
|
}
|
|
catch (f) {}
|
|
util.reportError(e);
|
|
}
|
|
}, this);
|
|
|
|
return function unwrap() {
|
|
for each (let k in Object.getOwnPropertyNames(original))
|
|
if (Object.getOwnPropertyDescriptor(object, k).configurable)
|
|
Object.defineProperty(object, k, Object.getOwnPropertyDescriptor(original, k));
|
|
else {
|
|
try {
|
|
object[k] = original[k];
|
|
}
|
|
catch (e) {}
|
|
}
|
|
};
|
|
},
|
|
|
|
|
|
/**
|
|
* The most recently active dactyl window.
|
|
*/
|
|
get activeWindow() this.windows[0],
|
|
|
|
set activeWindow(win) this.windows = [win].concat(this.windows.filter(function (w) w != win)),
|
|
|
|
/**
|
|
* A list of extant dactyl windows.
|
|
*/
|
|
windows: Class.Memoize(function () [])
|
|
});
|
|
|
|
endModule();
|
|
|
|
} catch(e){ if (!e.stack) e = Error(e); dump(e.fileName+":"+e.lineNumber+": "+e+"\n" + e.stack); }
|
|
|
|
// vim: set fdm=marker sw=4 ts=4 et ft=javascript:
|