Diffstat (limited to 'frontend/delta/js/MochiKit/Signal.js') (more/less context) (ignore whitespace changes)
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1 files changed, 924 insertions, 0 deletions
diff --git a/frontend/delta/js/MochiKit/Signal.js b/frontend/delta/js/MochiKit/Signal.js new file mode 100644 index 0000000..58d0363 --- a/dev/null +++ b/frontend/delta/js/MochiKit/Signal.js @@ -0,0 +1,924 @@ +/* + +Copyright 2008-2013 Clipperz Srl + +This file is part of Clipperz, the online password manager. +For further information about its features and functionalities please +refer to http://www.clipperz.com. + +* Clipperz is free software: you can redistribute it and/or modify it + under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + +* Clipperz is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU Affero General Public License for more details. + +* You should have received a copy of the GNU Affero General Public + License along with Clipperz. If not, see http://www.gnu.org/licenses/. + +*/ + +/*** + +MochiKit.Signal 1.5 + +See <http://mochikit.com/> for documentation, downloads, license, etc. + +(c) 2006 Jonathan Gardner, Beau Hartshorne, Bob Ippolito. All rights Reserved. + +***/ + +MochiKit.Base.module(MochiKit, 'Signal', '1.5', ['Base', 'DOM']); + +MochiKit.Signal._observers = []; + +/** @id MochiKit.Signal.Event */ +MochiKit.Signal.Event = function (src, e) { + this._event = e || window.event; + this._src = src; +}; +MochiKit.Signal.Event.__export__ = false; + +MochiKit.Base.update(MochiKit.Signal.Event.prototype, { + + __repr__: function () { + var repr = MochiKit.Base.repr; + var str = '{event(): ' + repr(this.event()) + + ', src(): ' + repr(this.src()) + + ', type(): ' + repr(this.type()) + + ', target(): ' + repr(this.target()); + + if (this.type() && + this.type().indexOf('key') === 0 || + this.type().indexOf('mouse') === 0 || + this.type().indexOf('click') != -1 || + this.type() == 'contextmenu') { + str += ', modifier(): ' + '{alt: ' + repr(this.modifier().alt) + + ', ctrl: ' + repr(this.modifier().ctrl) + + ', meta: ' + repr(this.modifier().meta) + + ', shift: ' + repr(this.modifier().shift) + + ', any: ' + repr(this.modifier().any) + '}'; + } + + if (this.type() && this.type().indexOf('key') === 0) { + str += ', key(): {code: ' + repr(this.key().code) + + ', string: ' + repr(this.key().string) + '}'; + } + + if (this.type() && ( + this.type().indexOf('mouse') === 0 || + this.type().indexOf('click') != -1 || + this.type() == 'contextmenu')) { + + str += ', mouse(): {page: ' + repr(this.mouse().page) + + ', client: ' + repr(this.mouse().client); + + if (this.type() != 'mousemove' && this.type() != 'mousewheel') { + str += ', button: {left: ' + repr(this.mouse().button.left) + + ', middle: ' + repr(this.mouse().button.middle) + + ', right: ' + repr(this.mouse().button.right) + '}'; + } + if (this.type() == 'mousewheel') { + str += ', wheel: ' + repr(this.mouse().wheel); + } + str += '}'; + } + if (this.type() == 'mouseover' || this.type() == 'mouseout' || + this.type() == 'mouseenter' || this.type() == 'mouseleave') { + str += ', relatedTarget(): ' + repr(this.relatedTarget()); + } + str += '}'; + return str; + }, + + /** @id MochiKit.Signal.Event.prototype.toString */ + toString: function () { + return this.__repr__(); + }, + + /** @id MochiKit.Signal.Event.prototype.src */ + src: function () { + return this._src; + }, + + /** @id MochiKit.Signal.Event.prototype.event */ + event: function () { + return this._event; + }, + + /** @id MochiKit.Signal.Event.prototype.type */ + type: function () { + if (this._event.type === "DOMMouseScroll") { + return "mousewheel"; + } else { + return this._event.type || undefined; + } + }, + + /** @id MochiKit.Signal.Event.prototype.target */ + target: function () { + return this._event.target || this._event.srcElement; + }, + + _relatedTarget: null, + /** @id MochiKit.Signal.Event.prototype.relatedTarget */ + relatedTarget: function () { + if (this._relatedTarget !== null) { + return this._relatedTarget; + } + + var elem = null; + if (this.type() == 'mouseover' || this.type() == 'mouseenter') { + elem = (this._event.relatedTarget || + this._event.fromElement); + } else if (this.type() == 'mouseout' || this.type() == 'mouseleave') { + elem = (this._event.relatedTarget || + this._event.toElement); + } + try { + if (elem !== null && elem.nodeType !== null) { + this._relatedTarget = elem; + return elem; + } + } catch (ignore) { + // Firefox 3 throws a permission denied error when accessing + // any property on XUL elements (e.g. scrollbars)... + } + + return undefined; + }, + + _modifier: null, + /** @id MochiKit.Signal.Event.prototype.modifier */ + modifier: function () { + if (this._modifier !== null) { + return this._modifier; + } + var m = {}; + m.alt = this._event.altKey; + m.ctrl = this._event.ctrlKey; + m.meta = this._event.metaKey || false; // IE and Opera punt here + m.shift = this._event.shiftKey; + m.any = m.alt || m.ctrl || m.shift || m.meta; + this._modifier = m; + return m; + }, + + _key: null, + /** @id MochiKit.Signal.Event.prototype.key */ + key: function () { + if (this._key !== null) { + return this._key; + } + var k = {}; + if (this.type() && this.type().indexOf('key') === 0) { + + /* + + If you're looking for a special key, look for it in keydown or + keyup, but never keypress. If you're looking for a Unicode + chracter, look for it with keypress, but never keyup or + keydown. + + Notes: + + FF key event behavior: + key event charCode keyCode + DOWN ku,kd 0 40 + DOWN kp 0 40 + ESC ku,kd 0 27 + ESC kp 0 27 + a ku,kd 0 65 + a kp 97 0 + shift+a ku,kd 0 65 + shift+a kp 65 0 + 1 ku,kd 0 49 + 1 kp 49 0 + shift+1 ku,kd 0 0 + shift+1 kp 33 0 + + IE key event behavior: + (IE doesn't fire keypress events for special keys.) + key event keyCode + DOWN ku,kd 40 + DOWN kp undefined + ESC ku,kd 27 + ESC kp 27 + a ku,kd 65 + a kp 97 + shift+a ku,kd 65 + shift+a kp 65 + 1 ku,kd 49 + 1 kp 49 + shift+1 ku,kd 49 + shift+1 kp 33 + + Safari key event behavior: + (Safari sets charCode and keyCode to something crazy for + special keys.) + key event charCode keyCode + DOWN ku,kd 63233 40 + DOWN kp 63233 63233 + ESC ku,kd 27 27 + ESC kp 27 27 + a ku,kd 97 65 + a kp 97 97 + shift+a ku,kd 65 65 + shift+a kp 65 65 + 1 ku,kd 49 49 + 1 kp 49 49 + shift+1 ku,kd 33 49 + shift+1 kp 33 33 + + */ + + /* look for special keys here */ + if (this.type() == 'keydown' || this.type() == 'keyup') { + k.code = this._event.keyCode; + k.string = (MochiKit.Signal._specialKeys[k.code] || + 'KEY_UNKNOWN'); + this._key = k; + return k; + + /* look for characters here */ + } else if (this.type() == 'keypress') { + + /* + + Special key behavior: + + IE: does not fire keypress events for special keys + FF: sets charCode to 0, and sets the correct keyCode + Safari: sets keyCode and charCode to something stupid + + */ + + k.code = 0; + k.string = ''; + + if (typeof(this._event.charCode) != 'undefined' && + this._event.charCode !== 0 && + !MochiKit.Signal._specialMacKeys[this._event.charCode]) { + k.code = this._event.charCode; + k.string = String.fromCharCode(k.code); + } else if (this._event.keyCode && + typeof(this._event.charCode) == 'undefined') { // IE + k.code = this._event.keyCode; + k.string = String.fromCharCode(k.code); + } + + this._key = k; + return k; + } + } + return undefined; + }, + + _mouse: null, + /** @id MochiKit.Signal.Event.prototype.mouse */ + mouse: function () { + if (this._mouse !== null) { + return this._mouse; + } + + var m = {}; + var e = this._event; + + if (this.type() && ( + this.type().indexOf('mouse') === 0 || + this.type().indexOf('drag') === 0 || + this.type().indexOf('click') != -1 || + this.type() == 'contextmenu')) { + + m.client = { x: 0, y: 0 }; + if (e.clientX || e.clientY) { + m.client.x = (!e.clientX || e.clientX < 0) ? 0 : e.clientX; + m.client.y = (!e.clientY || e.clientY < 0) ? 0 : e.clientY; + } + + m.page = { x: 0, y: 0 }; + if (e.pageX || e.pageY) { + m.page.x = (!e.pageX || e.pageX < 0) ? 0 : e.pageX; + m.page.y = (!e.pageY || e.pageY < 0) ? 0 : e.pageY; + } else { + /* + + The IE shortcut can be off by two. We fix it. See: + http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/getboundingclientrect.asp + + This is similar to the method used in + MochiKit.Style.getElementPosition(). + + */ + var de = MochiKit.DOM._document.documentElement; + var b = MochiKit.DOM._document.body; + + m.page.x = e.clientX + + (de.scrollLeft || b.scrollLeft) - + (de.clientLeft || 0); + + m.page.y = e.clientY + + (de.scrollTop || b.scrollTop) - + (de.clientTop || 0); + + } + if (this.type() != 'mousemove' && this.type() != 'mousewheel') { + m.button = {}; + m.button.left = false; + m.button.right = false; + m.button.middle = false; + + /* we could check e.button, but which is more consistent */ + if (e.which) { + m.button.left = (e.which == 1); + m.button.middle = (e.which == 2); + m.button.right = (e.which == 3); + + /* + + Mac browsers and right click: + + - Safari doesn't fire any click events on a right + click: + http://bugs.webkit.org/show_bug.cgi?id=6595 + + - Firefox fires the event, and sets ctrlKey = true + + - Opera fires the event, and sets metaKey = true + + oncontextmenu is fired on right clicks between + browsers and across platforms. + + */ + + } else { + m.button.left = !!(e.button & 1); + m.button.right = !!(e.button & 2); + m.button.middle = !!(e.button & 4); + } + } + if (this.type() == 'mousewheel') { + m.wheel = { x: 0, y: 0 }; + if (e.wheelDeltaX || e.wheelDeltaY) { + m.wheel.x = e.wheelDeltaX / -40 || 0; + m.wheel.y = e.wheelDeltaY / -40 || 0; + } else if (e.wheelDelta) { + m.wheel.y = e.wheelDelta / -40; + } else { + m.wheel.y = e.detail || 0; + } + } + this._mouse = m; + return m; + } + return undefined; + }, + + /** @id MochiKit.Signal.Event.prototype.stop */ + stop: function () { + this.stopPropagation(); + this.preventDefault(); + }, + + /** @id MochiKit.Signal.Event.prototype.stopPropagation */ + stopPropagation: function () { + if (this._event.stopPropagation) { + this._event.stopPropagation(); + } else { + this._event.cancelBubble = true; + } + }, + + /** @id MochiKit.Signal.Event.prototype.preventDefault */ + preventDefault: function () { + if (this._event.preventDefault) { + this._event.preventDefault(); + } else if (this._confirmUnload === null) { + this._event.returnValue = false; + } + }, + + _confirmUnload: null, + + /** @id MochiKit.Signal.Event.prototype.confirmUnload */ + confirmUnload: function (msg) { + if (this.type() == 'beforeunload') { + this._confirmUnload = msg; + this._event.returnValue = msg; + } + } +}); + +/* Safari sets keyCode to these special values onkeypress. */ +MochiKit.Signal._specialMacKeys = { + 3: 'KEY_ENTER', + 63289: 'KEY_NUM_PAD_CLEAR', + 63276: 'KEY_PAGE_UP', + 63277: 'KEY_PAGE_DOWN', + 63275: 'KEY_END', + 63273: 'KEY_HOME', + 63234: 'KEY_ARROW_LEFT', + 63232: 'KEY_ARROW_UP', + 63235: 'KEY_ARROW_RIGHT', + 63233: 'KEY_ARROW_DOWN', + 63302: 'KEY_INSERT', + 63272: 'KEY_DELETE' +}; + +/* for KEY_F1 - KEY_F12 */ +(function () { + var _specialMacKeys = MochiKit.Signal._specialMacKeys; + for (var i = 63236; i <= 63242; i++) { + // no F0 + _specialMacKeys[i] = 'KEY_F' + (i - 63236 + 1); + } +})(); + +/* Standard keyboard key codes. */ +MochiKit.Signal._specialKeys = { + 8: 'KEY_BACKSPACE', + 9: 'KEY_TAB', + 12: 'KEY_NUM_PAD_CLEAR', // weird, for Safari and Mac FF only + 13: 'KEY_ENTER', + 16: 'KEY_SHIFT', + 17: 'KEY_CTRL', + 18: 'KEY_ALT', + 19: 'KEY_PAUSE', + 20: 'KEY_CAPS_LOCK', + 27: 'KEY_ESCAPE', + 32: 'KEY_SPACEBAR', + 33: 'KEY_PAGE_UP', + 34: 'KEY_PAGE_DOWN', + 35: 'KEY_END', + 36: 'KEY_HOME', + 37: 'KEY_ARROW_LEFT', + 38: 'KEY_ARROW_UP', + 39: 'KEY_ARROW_RIGHT', + 40: 'KEY_ARROW_DOWN', + 44: 'KEY_PRINT_SCREEN', + 45: 'KEY_INSERT', + 46: 'KEY_DELETE', + 59: 'KEY_SEMICOLON', // weird, for Safari and IE only + 91: 'KEY_WINDOWS_LEFT', + 92: 'KEY_WINDOWS_RIGHT', + 93: 'KEY_SELECT', + 106: 'KEY_NUM_PAD_ASTERISK', + 107: 'KEY_NUM_PAD_PLUS_SIGN', + 109: 'KEY_NUM_PAD_HYPHEN-MINUS', + 110: 'KEY_NUM_PAD_FULL_STOP', + 111: 'KEY_NUM_PAD_SOLIDUS', + 144: 'KEY_NUM_LOCK', + 145: 'KEY_SCROLL_LOCK', + 186: 'KEY_SEMICOLON', + 187: 'KEY_EQUALS_SIGN', + 188: 'KEY_COMMA', + 189: 'KEY_HYPHEN-MINUS', + 190: 'KEY_FULL_STOP', + 191: 'KEY_SOLIDUS', + 192: 'KEY_GRAVE_ACCENT', + 219: 'KEY_LEFT_SQUARE_BRACKET', + 220: 'KEY_REVERSE_SOLIDUS', + 221: 'KEY_RIGHT_SQUARE_BRACKET', + 222: 'KEY_APOSTROPHE' + // undefined: 'KEY_UNKNOWN' +}; + +(function () { + /* for KEY_0 - KEY_9 */ + var _specialKeys = MochiKit.Signal._specialKeys; + for (var i = 48; i <= 57; i++) { + _specialKeys[i] = 'KEY_' + (i - 48); + } + + /* for KEY_A - KEY_Z */ + for (i = 65; i <= 90; i++) { + _specialKeys[i] = 'KEY_' + String.fromCharCode(i); + } + + /* for KEY_NUM_PAD_0 - KEY_NUM_PAD_9 */ + for (i = 96; i <= 105; i++) { + _specialKeys[i] = 'KEY_NUM_PAD_' + (i - 96); + } + + /* for KEY_F1 - KEY_F12 */ + for (i = 112; i <= 123; i++) { + // no F0 + _specialKeys[i] = 'KEY_F' + (i - 112 + 1); + } +})(); + +/* Internal object to keep track of created signals. */ +MochiKit.Signal.Ident = function (ident) { + this.source = ident.source; + this.signal = ident.signal; + this.listener = ident.listener; + this.isDOM = ident.isDOM; + this.objOrFunc = ident.objOrFunc; + this.funcOrStr = ident.funcOrStr; + this.connected = ident.connected; +}; +MochiKit.Signal.Ident.__export__ = false; +MochiKit.Signal.Ident.prototype = {}; + +MochiKit.Base.update(MochiKit.Signal, { + + _unloadCache: function () { + var self = MochiKit.Signal; + var observers = self._observers; + + for (var i = 0; i < observers.length; i++) { + if (observers[i].signal !== 'onload' && observers[i].signal !== 'onunload') { + self._disconnect(observers[i]); + } + } + }, + + _listener: function (src, sig, func, obj, isDOM) { + var self = MochiKit.Signal; + var E = self.Event; + if (!isDOM) { + /* We don't want to re-bind already bound methods */ + if (typeof(func.im_self) == 'undefined') { + return MochiKit.Base.bindLate(func, obj); + } else { + return func; + } + } + obj = obj || src; + if (typeof(func) == "string") { + if (sig === 'onload' || sig === 'onunload') { + return function (nativeEvent) { + obj[func].apply(obj, [new E(src, nativeEvent)]); + + var ident = new MochiKit.Signal.Ident({ + source: src, signal: sig, objOrFunc: obj, funcOrStr: func}); + + MochiKit.Signal._disconnect(ident); + }; + } else { + return function (nativeEvent) { + obj[func].apply(obj, [new E(src, nativeEvent)]); + }; + } + } else { + if (sig === 'onload' || sig === 'onunload') { + return function (nativeEvent) { + func.apply(obj, [new E(src, nativeEvent)]); + + var ident = new MochiKit.Signal.Ident({ + source: src, signal: sig, objOrFunc: func}); + + MochiKit.Signal._disconnect(ident); + }; + } else { + return function (nativeEvent) { + func.apply(obj, [new E(src, nativeEvent)]); + }; + } + } + }, + + _browserAlreadyHasMouseEnterAndLeave: function () { + return /MSIE/.test(navigator.userAgent); + }, + + _browserLacksMouseWheelEvent: function () { + return /Gecko\//.test(navigator.userAgent); + }, + + _mouseEnterListener: function (src, sig, func, obj) { + var E = MochiKit.Signal.Event; + return function (nativeEvent) { + var e = new E(src, nativeEvent); + try { + e.relatedTarget().nodeName; + } catch (err) { + /* probably hit a permission denied error; possibly one of + * firefox's screwy anonymous DIVs inside an input element. + * Allow this event to propogate up. + */ + return; + } + e.stop(); + if (MochiKit.DOM.isChildNode(e.relatedTarget(), src)) { + /* We've moved between our node and a child. Ignore. */ + return; + } + e.type = function () { return sig; }; + if (typeof(func) == "string") { + return obj[func].apply(obj, [e]); + } else { + return func.apply(obj, [e]); + } + }; + }, + + _getDestPair: function (objOrFunc, funcOrStr) { + var obj = null; + var func = null; + if (typeof(funcOrStr) != 'undefined') { + obj = objOrFunc; + func = funcOrStr; + if (typeof(funcOrStr) == 'string') { + if (typeof(objOrFunc[funcOrStr]) != "function") { + throw new Error("'funcOrStr' must be a function on 'objOrFunc'"); + } + } else if (typeof(funcOrStr) != 'function') { + throw new Error("'funcOrStr' must be a function or string"); + } + } else if (typeof(objOrFunc) != "function") { + throw new Error("'objOrFunc' must be a function if 'funcOrStr' is not given"); + } else { + func = objOrFunc; + } + return [obj, func]; + }, + + /** @id MochiKit.Signal.connect */ + connect: function (src, sig, objOrFunc/* optional */, funcOrStr) { + if (typeof(src) == "string") { + src = MochiKit.DOM.getElement(src); + } + var self = MochiKit.Signal; + + if (typeof(sig) != 'string') { + throw new Error("'sig' must be a string"); + } + + var destPair = self._getDestPair(objOrFunc, funcOrStr); + var obj = destPair[0]; + var func = destPair[1]; + if (typeof(obj) == 'undefined' || obj === null) { + obj = src; + } + + var isDOM = !!(src.addEventListener || src.attachEvent); + if (isDOM && (sig === "onmouseenter" || sig === "onmouseleave") + && !self._browserAlreadyHasMouseEnterAndLeave()) { + var listener = self._mouseEnterListener(src, sig.substr(2), func, obj); + if (sig === "onmouseenter") { + sig = "onmouseover"; + } else { + sig = "onmouseout"; + } + } else if (isDOM && sig == "onmousewheel" && self._browserLacksMouseWheelEvent()) { + var listener = self._listener(src, sig, func, obj, isDOM); + sig = "onDOMMouseScroll"; + } else { + var listener = self._listener(src, sig, func, obj, isDOM); + } + + if (src.addEventListener) { + src.addEventListener(sig.substr(2), listener, false); + } else if (src.attachEvent) { + src.attachEvent(sig, listener); // useCapture unsupported + } + + var ident = new MochiKit.Signal.Ident({ + source: src, + signal: sig, + listener: listener, + isDOM: isDOM, + objOrFunc: objOrFunc, + funcOrStr: funcOrStr, + connected: true + }); + self._observers.push(ident); + + if (!isDOM && typeof(src.__connect__) == 'function') { + var args = MochiKit.Base.extend([ident], arguments, 1); + src.__connect__.apply(src, args); + } + + return ident; + }, + + /** @id MochiKit.Signal.connectOnce */ + connectOnce: function (src, sig, objOrFunc/* optional */, funcOrStr) { + var self = MochiKit.Signal; + var ident1 = self.connect(src, sig, objOrFunc, funcOrStr); + var ident2; + ident2 = self.connect(src, sig, function() { + self.disconnect(ident1); + self.disconnect(ident2); + }); + return ident1; + }, + + _disconnect: function (ident) { + // already disconnected + if (!ident.connected) { + return; + } + ident.connected = false; + var src = ident.source; + var sig = ident.signal; + var listener = ident.listener; + // check isDOM + if (!ident.isDOM) { + if (typeof(src.__disconnect__) == 'function') { + src.__disconnect__(ident, sig, ident.objOrFunc, ident.funcOrStr); + } + return; + } + if (src.removeEventListener) { + src.removeEventListener(sig.substr(2), listener, false); + } else if (src.detachEvent) { + src.detachEvent(sig, listener); // useCapture unsupported + } else { + throw new Error("'src' must be a DOM element"); + } + }, + + /** @id MochiKit.Signal.disconnect */ + disconnect: function (ident) { + var self = MochiKit.Signal; + var observers = self._observers; + var m = MochiKit.Base; + if (arguments.length > 1) { + // compatibility API + var src = arguments[0]; + if (typeof(src) == "string") { + src = MochiKit.DOM.getElement(src); + } + var sig = arguments[1]; + var obj = arguments[2]; + var func = arguments[3]; + for (var i = observers.length - 1; i >= 0; i--) { + var o = observers[i]; + if (o.source === src && o.signal === sig && o.objOrFunc === obj && o.funcOrStr === func) { + self._disconnect(o); + if (self._lock === 0) { + observers.splice(i, 1); + } else { + self._dirty = true; + } + return true; + } + } + } else { + var idx = m.findIdentical(observers, ident); + if (idx >= 0) { + self._disconnect(ident); + if (self._lock === 0) { + observers.splice(idx, 1); + } else { + self._dirty = true; + } + return true; + } + } + return false; + }, + + /** @id MochiKit.Signal.disconnectAllTo */ + disconnectAllTo: function (objOrFunc, /* optional */funcOrStr) { + var self = MochiKit.Signal; + var observers = self._observers; + var disconnect = self._disconnect; + var lock = self._lock; + var dirty = self._dirty; + if (typeof(funcOrStr) === 'undefined') { + funcOrStr = null; + } + for (var i = observers.length - 1; i >= 0; i--) { + var ident = observers[i]; + if (ident.objOrFunc === objOrFunc && + (funcOrStr === null || ident.funcOrStr === funcOrStr)) { + disconnect(ident); + if (lock === 0) { + observers.splice(i, 1); + } else { + dirty = true; + } + } + } + self._dirty = dirty; + }, + + /** @id MochiKit.Signal.disconnectAll */ + disconnectAll: function (src/* optional */, sig) { + if (typeof(src) == "string") { + src = MochiKit.DOM.getElement(src); + } + var m = MochiKit.Base; + var signals = m.flattenArguments(m.extend(null, arguments, 1)); + var self = MochiKit.Signal; + var disconnect = self._disconnect; + var observers = self._observers; + var i, ident; + var lock = self._lock; + var dirty = self._dirty; + if (signals.length === 0) { + // disconnect all + for (i = observers.length - 1; i >= 0; i--) { + ident = observers[i]; + if (ident.source === src) { + disconnect(ident); + if (lock === 0) { + observers.splice(i, 1); + } else { + dirty = true; + } + } + } + } else { + var sigs = {}; + for (i = 0; i < signals.length; i++) { + sigs[signals[i]] = true; + } + for (i = observers.length - 1; i >= 0; i--) { + ident = observers[i]; + if (ident.source === src && ident.signal in sigs) { + disconnect(ident); + if (lock === 0) { + observers.splice(i, 1); + } else { + dirty = true; + } + } + } + } + self._dirty = dirty; + }, + + /** @id MochiKit.Signal.signal */ + signal: function (src, sig) { + var self = MochiKit.Signal; + var observers = self._observers; + if (typeof(src) == "string") { + src = MochiKit.DOM.getElement(src); + } + var args = MochiKit.Base.extend(null, arguments, 2); + var errors = []; + self._lock++; + for (var i = 0; i < observers.length; i++) { + var ident = observers[i]; + if (ident.source === src && ident.signal === sig && + ident.connected) { + try { + if (ident.isDOM && ident.funcOrStr != null) { + var obj = ident.objOrFunc; + obj[ident.funcOrStr].apply(obj, args); + } else if (ident.isDOM) { + ident.objOrFunc.apply(src, args); + } else { + ident.listener.apply(src, args); + } + } catch (e) { + errors.push(e); + } + } + } + self._lock--; + if (self._lock === 0 && self._dirty) { + self._dirty = false; + for (var i = observers.length - 1; i >= 0; i--) { + if (!observers[i].connected) { + observers.splice(i, 1); + } + } + } + if (errors.length == 1) { + throw errors[0]; + } else if (errors.length > 1) { + var e = new Error("Multiple errors thrown in handling 'sig', see errors property"); + e.errors = errors; + throw e; + } + } + +}); + +MochiKit.Signal.__new__ = function (win) { + var m = MochiKit.Base; + this._document = document; + this._window = win; + this._lock = 0; + this._dirty = false; + + try { + this.connect(window, 'onunload', this._unloadCache); + } catch (e) { + // pass: might not be a browser + } + + m.nameFunctions(this); +}; + +MochiKit.Signal.__new__(this); + +// +// XXX: Internet Explorer blows +// +if (MochiKit.__export__) { + connect = MochiKit.Signal.connect; + disconnect = MochiKit.Signal.disconnect; + disconnectAll = MochiKit.Signal.disconnectAll; + signal = MochiKit.Signal.signal; +} + +MochiKit.Base._exportSymbols(this, MochiKit.Signal); |