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ZmMailMsgView.js
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ZmMailMsgView.js
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/*
* ***** BEGIN LICENSE BLOCK *****
* Zimbra Collaboration Suite Web Client
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Zimbra Software, LLC.
*
* The contents of this file are subject to the Zimbra Public License
* Version 1.4 ("License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.zimbra.com/license.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
* ***** END LICENSE BLOCK *****
*/
ZmMailMsgView = function(params) {
if (arguments.length == 0) { return; }
params.className = params.className || "ZmMailMsgView";
ZmMailItemView.call(this, params);
this._mode = params.mode;
this._controller = params.controller;
this._viewId = this._getViewId(params.sessionId);
this._displayImagesId = ZmId.getViewId(this._viewId, ZmId.MV_DISPLAY_IMAGES, this._mode);
this._msgTruncatedId = ZmId.getViewId(this._viewId, ZmId.MV_MSG_TRUNC, this._mode);
this._infoBarId = ZmId.getViewId(this._viewId, ZmId.MV_INFO_BAR, this._mode);
this._tagRowId = ZmId.getViewId(this._viewId, ZmId.MV_TAG_ROW, this._mode);
this._tagCellId = ZmId.getViewId(this._viewId, ZmId.MV_TAG_CELL, this._mode);
this._attLinksId = ZmId.getViewId(this._viewId, ZmId.MV_ATT_LINKS, this._mode);
this._scrollWithIframe = params.scrollWithIframe;
this._limitAttachments = this._scrollWithIframe ? 3 : 0; //making it local
this._attcMaxSize = this._limitAttachments * 16 + 8;
this.setScrollStyle(this._scrollWithIframe ? DwtControl.CLIP : DwtControl.SCROLL);
ZmTagsHelper.setupListeners(this); //setup tags related listeners.
this._setMouseEventHdlrs(); // needed by object manager
this._objectManager = true;
this._changeListener = this._msgChangeListener.bind(this);
this.addListener(DwtEvent.ONSELECTSTART, this._selectStartListener.bind(this));
this.addListener(DwtEvent.CONTROL, this._controlEventListener.bind(this));
// bug fix #25724 - disable right click selection for offline
if (!appCtxt.isOffline) {
this._setAllowSelection();
}
this.noTab = true;
this._attachmentLinkIdToFileNameMap = null;
};
ZmMailMsgView.prototype = new ZmMailItemView;
ZmMailMsgView.prototype.constructor = ZmMailMsgView;
ZmMailMsgView.prototype.isZmMailMsgView = true;
ZmMailMsgView.prototype.toString = function() { return "ZmMailMsgView"; };
// displays any additional headers in messageView
//pass ZmMailMsgView.displayAdditionalHdrsInMsgView[<actualHeaderName>] = <DisplayName>
//pass ZmMailMsgView.displayAdditionalHdrsInMsgView["X-Mailer"] = "Sent Using:"
ZmMailMsgView.displayAdditionalHdrsInMsgView = {};
// Consts
ZmMailMsgView.SCROLL_WITH_IFRAME = true;
ZmMailMsgView.LIMIT_ATTACHMENTS = ZmMailMsgView.SCROLL_WITH_IFRAME ? 3 : 0;
ZmMailMsgView.ATTC_COLUMNS = 2;
ZmMailMsgView.ATTC_MAX_SIZE = ZmMailMsgView.LIMIT_ATTACHMENTS * 16 + 8;
ZmMailMsgView.QUOTE_DEPTH_MOD = 3;
ZmMailMsgView.MAX_SIG_LINES = 8;
ZmMailMsgView.SIG_LINE = /^(- ?-+)|(__+)\r?$/;
ZmMailMsgView._inited = false;
ZmMailMsgView.SHARE_EVENT = "share";
ZmMailMsgView.SUBSCRIBE_EVENT = "subscribe";
ZmMailMsgView.IMG_FIX_RE = new RegExp("(<img\\s+.*dfsrc\\s*=\\s*)[\"']http[^'\"]+part=([\\d\\.]+)[\"']([^>]*>)", "gi");
ZmMailMsgView.FILENAME_INV_CHARS_RE = /[\./?*:;{}'\\]/g; // Chars we do not allow in a filename
ZmMailMsgView.SETHEIGHT_MAX_TRIES = 3;
ZmMailMsgView._URL_RE = /^((https?|ftps?):\x2f\x2f.+)$/;
ZmMailMsgView._MAILTO_RE = /^mailto:[\x27\x22]?([^@?&\x22\x27]+@[^@?&]+\.[^@?&\x22\x27]+)[\x27\x22]?/;
ZmMailMsgView.MAX_ADDRESSES_IN_FIELD = 10;
// tags that are trusted in HTML content that is not displayed in an iframe
ZmMailMsgView.TRUSTED_TAGS = ["#text", "a", "abbr", "acronym", "address", "article", "b", "basefont", "bdo", "big",
"blockquote", "body", "br", "caption", "center", "cite", "code", "col", "colgroup", "dd", "del", "dfn", "dir",
"div", "dl", "dt", "em", "font", "footer", "h1", "h2", "h3", "h4", "h5", "h6", "head", "header", "hr", "html", "i", "img",
"ins", "kbd", "li", "mark", "menu", "meter", "nav", "ol", "p", "pre", "q", "s", "samp", "section", "small",
"span", "strike", "strong", "sub", "sup", "table", "tbody", "td", "tfoot", "th", "thead", "time", "tr", "tt",
"u", "ul", "var", "wbr"];
// attributes that we don't want to appear in HTML displayed in a div
ZmMailMsgView.UNTRUSTED_ATTRS = ["id", "class", "name", "profile"];
// Public methods
ZmMailMsgView.prototype.getController =
function() {
return this._controller;
};
ZmMailMsgView.prototype.reset =
function() {
// Bug 23692: cancel any pending actions
if (this._resizeAction) {
AjxTimedAction.cancelAction(this._resizeAction);
this._resizeAction = null;
}
if (this._objectsAction) {
AjxTimedAction.cancelAction(this._objectsAction);
this._objectsAction = null;
}
this._msg = this._item = null;
this._htmlBody = null;
this._containerEl = null;
// TODO: reuse all these controls that are being disposed here.....
if (this._ifw) {
this._ifw.dispose();
this._ifw = null;
}
if (this._inviteMsgView) {
this._inviteMsgView.reset();
}
var el = this.getHtmlElement();
if (el) {
el.innerHTML = "";
}
if (this._objectManager && this._objectManager.reset) {
this._objectManager.reset();
}
this.setScrollWithIframe(this._scrollWithIframe);
};
ZmMailMsgView.prototype.dispose =
function() {
ZmTagsHelper.disposeListeners(this);
ZmMailItemView.prototype.dispose.apply(this, arguments);
};
ZmMailMsgView.prototype.preventSelection =
function() {
return false;
};
ZmMailMsgView.prototype.set =
function(msg, force, dayViewCallback) {
if (!force && this._msg && msg && !msg.force && (this._msg == msg)) { return; }
var oldMsg = this._msg;
this.reset();
var contentDiv = this._getContainer();
this._msg = this._item = msg;
if (!msg) {
if (this._inviteMsgView) {
this._inviteMsgView.resize(true); //make sure the msg preview pane takes the entire area, in case we were viewing an invite. (since then it was resized to allow for day view) - bug 53098
}
contentDiv.innerHTML = (this._controller.getList().size()) ? AjxTemplate.expand("mail.Message#viewMessage") : "";
this.noTab = true;
return;
}
msg.force = false;
var respCallback = this._handleResponseSet.bind(this, msg, oldMsg, dayViewCallback);
this._renderMessage(msg, contentDiv, respCallback);
this.noTab = AjxEnv.isIE;
};
ZmMailMsgView.prototype._getContainer =
function() {
return this.getHtmlElement();
};
ZmMailMsgView.prototype.__hasMountpoint =
function(share) {
var tree = appCtxt.getFolderTree();
return tree
? this.__hasMountpoint2(tree.root, share.grantor.id, share.link.id)
: false;
};
ZmMailMsgView.prototype.__hasMountpoint2 =
function(organizer, zid, rid) {
if (organizer.zid == zid && organizer.rid == rid)
return true;
if (organizer.children) {
var children = organizer.children.getArray();
for (var i = 0; i < children.length; i++) {
var found = this.__hasMountpoint2(children[i], zid, rid);
if (found) {
return true;
}
}
}
return false;
};
ZmMailMsgView.prototype.highlightObjects =
function(origText) {
if (origText != null) {
// we get here only for text messages; it's a lot
// faster to call findObjects on the whole text rather
// than parsing the DOM.
DBG.timePt("START - highlight objects on-demand, text msg.");
this._lazyCreateObjectManager();
var html = this._objectManager.findObjects(origText, true, null, true);
html = html.replace(/^ /mg, " ")
.replace(/\t/g, "<pre style='display:inline;'>\t</pre>")
.replace(/\n/g, "<br>");
var container = this.getContentContainer();
container.innerHTML = html;
DBG.timePt("END - highlight objects on-demand, text msg.");
} else {
this._processHtmlDoc();
}
};
ZmMailMsgView.prototype.resetMsg =
function(newMsg) {
// Remove listener for current msg if it exists
if (this._msg) {
this._msg.removeChangeListener(this._changeListener);
}
};
ZmMailMsgView.prototype.getMsg =
function() {
return this._msg;
};
ZmMailMsgView.prototype.getItem = ZmMailMsgView.prototype.getMsg;
// Following two overrides are a hack to allow this view to pretend it's a list view
ZmMailMsgView.prototype.getSelection =
function() {
return [this._msg];
};
ZmMailMsgView.prototype.getSelectionCount =
function() {
return 1;
};
ZmMailMsgView.prototype.getMinHeight =
function() {
if (!this._headerHeight) {
var headerObj = document.getElementById(this._hdrTableId);
this._headerHeight = headerObj ? Dwt.getSize(headerObj).y : 0;
}
return this._headerHeight;
};
// returns true if the current message was rendered in HTML
ZmMailMsgView.prototype.hasHtmlBody =
function() {
return this._htmlBody != null;
};
// returns the IFRAME's document if we are using one, or the window document
ZmMailMsgView.prototype.getDocument =
function() {
return this._usingIframe ? Dwt.getIframeDoc(this.getIframe()) : document;
};
// returns the IFRAME element if we are using one
ZmMailMsgView.prototype.getIframe =
function() {
if (!this._usingIframe) { return null; }
var iframe = this._iframeId && document.getElementById(this._iframeId);
iframe = iframe || (this._ifw && this._ifw.getIframe());
return iframe;
};
ZmMailMsgView.prototype.getIframeElement = ZmMailMsgView.prototype.getIframe;
// Returns a BODY element if we are using an IFRAME, the container DIV if we are not.
ZmMailMsgView.prototype.getContentContainer =
function() {
if (this._usingIframe) {
var idoc = this.getDocument();
return idoc && idoc.body;
}
else {
return this._containerEl;
}
};
ZmMailMsgView.prototype.getContent =
function() {
var container = this.getContentContainer();
return container ? container.innerHTML : "";
};
ZmMailMsgView.prototype.addInviteReplyListener =
function(listener) {
this.addListener(ZmInviteMsgView.REPLY_INVITE_EVENT, listener);
};
ZmMailMsgView.prototype.addShareListener =
function(listener) {
this.addListener(ZmMailMsgView.SHARE_EVENT, listener);
};
ZmMailMsgView.prototype.addSubscribeListener =
function(listener) {
this.addListener(ZmMailMsgView.SUBSCRIBE_EVENT, listener);
};
ZmMailMsgView.prototype.setVisible =
function(visible, readingPaneOnRight,msg) {
DwtComposite.prototype.setVisible.apply(this, arguments);
var inviteMsgView = this._inviteMsgView;
if (!inviteMsgView) {
return;
}
if (visible && this._msg) {
if (this._msg != msg) {
var dayView = inviteMsgView.getDayView();
if (dayView) {
dayView.setIsRight(readingPaneOnRight);
}
inviteMsgView.set(this._msg);
inviteMsgView.showMoreInfo(null, null, readingPaneOnRight);
}
}
else {
inviteMsgView.reset();
}
};
// Private / protected methods
ZmMailMsgView.prototype._getSubscribeToolbar =
function(req) {
if (this._subscribeToolbar) {
if (AjxEnv.isIE) {
//reparenting on IE does not work. So recreating in this case. (similar to bug 52412 for the invite toolbar)
this._subscribeToolbar.dispose();
this._subscribeToolbar = null;
}
else {
return this._subscribeToolbar;
}
}
this._subscribeToolbar = this._getButtonToolbar([ZmOperation.SUBSCRIBE_APPROVE, ZmOperation.SUBSCRIBE_REJECT],
ZmId.TB_SUBSCRIBE,
this._subscribeToolBarListener.bind(this, req));
return this._subscribeToolbar;
};
ZmMailMsgView.prototype._getShareToolbar =
function() {
if (this._shareToolbar) {
if (AjxEnv.isIE) {
//reparenting on IE does not work. So recreating in this case. (similar to bug 52412 for the invite toolbar)
this._shareToolbar.dispose();
this._shareToolbar = null;
}
else {
return this._shareToolbar;
}
}
this._shareToolbar = this._getButtonToolbar([ZmOperation.SHARE_ACCEPT, ZmOperation.SHARE_DECLINE],
ZmId.TB_SHARE,
this._shareToolBarListener.bind(this));
return this._shareToolbar;
};
ZmMailMsgView.prototype._getButtonToolbar =
function(buttonIds, toolbarType, listener) {
var params = {
parent: this,
buttons: buttonIds,
posStyle: DwtControl.STATIC_STYLE,
className: "ZmShareToolBar",
buttonClassName: "DwtToolbarButton",
context: this._mode,
toolbarType: toolbarType
};
var toolbar = new ZmButtonToolBar(params);
for (var i = 0; i < buttonIds.length; i++) {
var id = buttonIds[i];
// HACK: IE doesn't support multiple class names.
var b = toolbar.getButton(id);
b._hoverClassName = b._className + "-" + DwtCssStyle.HOVER;
b._activeClassName = b._className + "-" + DwtCssStyle.ACTIVE;
toolbar.addSelectionListener(id, listener);
}
return toolbar;
};
ZmMailMsgView.prototype._notifyZimletsNewMsg =
function(msg, oldMsg) {
// notify zimlets that a new message has been opened
appCtxt.notifyZimlets("onMsgView", [msg, oldMsg, this]);
};
ZmMailMsgView.prototype._handleResponseSet =
function(msg, oldMsg, dayViewCallback) {
var notifyZimletsInShowMore = false;
if (this._inviteMsgView) {
// always show F/B view if in stand-alone message view otherwise, check
// if reading pane is on
if (this._inviteMsgView.isActive() &&
(this._controller.isReadingPaneOn() || (this._controller instanceof ZmMsgController)))
{
notifyZimletsInShowMore = true;
this._inviteMsgView.showMoreInfo(this._notifyZimletsNewMsg.bind(this, msg, oldMsg), dayViewCallback);
}
else {
// resize the message view without F/B view
this._inviteMsgView.resize(true);
}
}
if (!appCtxt.isChildWindow) {
this._setTags(msg);
// Remove listener for current msg if it exists
if (oldMsg) {
oldMsg.removeChangeListener(this._changeListener);
}
msg.addChangeListener(this._changeListener);
}
// reset scroll view to top most
var htmlElement = this.getHtmlElement();
htmlElement.scrollTop = 0;
if (htmlElement.scrollTop != 0 && this._usingIframe) {
/* situation that happens only on Chrome, without repro steps - bug 55775/57090 */
AjxDebug.println(AjxDebug.SCROLL, "scrollTop not set to 0. scrollTop=" + htmlElement.scrollTop + " offsetHeight=" + htmlElement.offsetHeight + " scrollHeight=" + htmlElement.scrollHeight + " browser=" + navigator.userAgent);
AjxDebug.dumpObj(AjxDebug.SCROLL, htmlElement.outerHTML);
/*
trying this hack for solution -
explanation: The scroll bar does not appear if the scrollHeight of the div is bigger than the total height of the iframe and header together (i.e. if htmlElement.scrollHeight >= htmlElement.offsetHeight)
If the scrollbar does not appear it's set to, and stays 0 when the scrollbar reappears due to resizing the iframe in _resetIframeHeight (which is later, I think always on timer).
So what I do here is set the height of the iframe to very small (since the default is 150px), so the scroll bar disappears.
it will reappear when we reset the size in _resetIframeHeight. I hope this will solve the issue.
*/
var iframe = this.getIframe();
if (iframe) {
iframe.style.height = "1px";
AjxDebug.println(AjxDebug.SCROLL, "scrollTop after resetting it with the hack =" + htmlElement.scrollTop);
}
}
if (!notifyZimletsInShowMore) {
this._notifyZimletsNewMsg(msg, oldMsg);
}
if (!msg.isDraft && msg.readReceiptRequested) {
this._controller.sendReadReceipt(msg);
}
};
// This is needed for Gecko only: for some reason, clicking on a local link will
// open the full Zimbra chrome in the iframe :-( so we fake a scroll to the link
// target here. (bug 7927)
ZmMailMsgView.__localLinkClicked =
function(msgView, ev) {
// note that this function is called in the context of the link ('this' is an A element)
var id = this.getAttribute("href");
var el = null;
var doc = this.ownerDocument;
if (id.substr(0, 1) == "#") {
id = id.substr(1);
el = doc.getElementById(id);
if (!el) {
try {
el = doc.getElementsByName(id)[0];
} catch(ex) {}
}
if (!el) {
id = decodeURIComponent(id);
el = doc.getElementById(id);
if (!el) {
try {
el = doc.getElementsByName(id)[0];
} catch(ex) {}
}
}
}
// attempt #1: doesn't work at all -- we're not scrolling with the IFRAME :-(
// if (el) {
// var pos = Dwt.getLocation(el);
// doc.contentWindow.scrollTo(pos.x, pos.y);
// }
// attempt #2: works pretty well, but the target node will showup at the bottom of the frame
// var foo = doc.createElement("a");
// foo.href = "#";
// foo.innerHTML = "foo";
// el.parentNode.insertBefore(foo, el);
// foo.focus();
// the final monstrosity: scroll the containing DIV
// (that is the whole msgView). Note we have to take
// into account the headers, "display images", etc --
// so we add iframe.offsetTop/Left.
if (el) {
var div = msgView.getHtmlElement();
var iframe = msgView.getIframe();
var pos = Dwt.getLocation(el);
div.scrollTop = pos.y + iframe.offsetTop - 20; // fuzz factor necessary for unknown reason :-(
div.scrollLeft = pos.x + iframe.offsetLeft;
}
if (ev) {
ev.stopPropagation();
ev.preventDefault();
}
return false;
};
ZmMailMsgView.prototype.hasValidHref =
function (node) {
// Bug 22958: IE can throw when you try and get the href if it doesn't like
// the value, so we wrap the test in a try/catch.
// hrefs formatted like http://www.name@domain.com can cause this to happen.
try {
var href = node.href;
return ZmMailMsgView._URL_RE.test(href) || ZmMailMsgView._MAILTO_RE.test(href);
} catch (e) {
return false;
}
};
// Dives recursively into the given DOM node. Creates ObjectHandlers in text
// nodes and cleans the mess in element nodes. Discards by default "script",
// "link", "object", "style", "applet" and "iframe" (most of them shouldn't
// even be here since (1) they belong in the <head> and (2) are discarded on
// the server-side, but we check, just in case..).
ZmMailMsgView.prototype._processHtmlDoc =
function() {
var parent = this._usingIframe ? this.getDocument() : this._containerEl;
if (!parent) { return; }
DBG.timePt("Starting ZmMailMsgView.prototype._processHtmlDoc");
// bug 8632
var images = parent.getElementsByTagName("img");
if (images.length > 0) {
var length = images.length;
for (var i = 0; i < images.length; i++) {
this._checkImgInAttachments(images[i]);
}
}
//Find Zimlet Objects lazly
this.lazyFindMailMsgObjects(500);
DBG.timePt("-- END _processHtmlDoc");
};
ZmMailMsgView.prototype.lazyFindMailMsgObjects =
function(interval) {
if (this._objectManager && !this._disposed) {
this._lazyCreateObjectManager();
this._objectsAction = new AjxTimedAction(this, this._findMailMsgObjects);
AjxTimedAction.scheduleAction(this._objectsAction, ( interval || 500 ));
}
};
ZmMailMsgView.prototype._findMailMsgObjects =
function() {
var doc = this.getDocument();
if (doc) {
this._objectManager.processObjectsInNode(doc, this.getContentContainer());
}
};
ZmMailMsgView.prototype._checkImgInAttachments =
function(img) {
if (!this._msg) { return; }
if (img.getAttribute("zmforced")){
img.className = "InlineImage";
return;
}
var attachments = this._msg.attachments;
var csfeMsgFetch = appCtxt.get(ZmSetting.CSFE_MSG_FETCHER_URI);
try {
var src = img.getAttribute("src") || img.getAttribute("dfsrc");
}
catch(e) {
AjxDebug.println(AjxDebug.DATA_URI, "_checkImgInAttachments: couldn't access attribute src or dfsrc");
}
var cid;
if (/^cid:(.*)/.test(src)) {
cid = "<" + RegExp.$1 + ">";
}
for (var i = 0; i < attachments.length; i++) {
var att = attachments[i];
if (att.foundInMsgBody) { continue; }
if (cid && att.contentId == cid) {
att.foundInMsgBody = true;
break;
} else if (src && src.indexOf(csfeMsgFetch) == 0) {
var mpId = src.substring(src.lastIndexOf("=") + 1);
if (mpId == att.part) {
att.foundInMsgBody = true;
break;
}
} else if (att.contentLocation && src) {
var filename = src.substring(src.lastIndexOf("/") + 1);
if (filename == att.fileName) {
att.foundInMsgBody = true;
break;
}
}
}
};
ZmMailMsgView.prototype._fixMultipartRelatedImages =
function(msg, parent) {
// fix <img> tags
var images = parent.getElementsByTagName("img");
var hasExternalImages = false;
if (this._usingIframe) {
var self = this;
var onload = function() {
//resize iframe onload of image
ZmMailMsgView._resetIframeHeight(self);
this.onload = null; // *this* is reference to <img> el.
};
}
for (var i = 0; i < images.length; i++) {
var img = images[i];
var external = ZmMailMsgView._isExternalImage(img); // has "dfsrc" attr
if (!external) { //Inline image
ZmMailMsgView.__unfangInternalImage(msg, img, "src", false);
if (onload) {
img.onload = onload;
}
}
else {
img.src = "/img/zimbra/1x1-trans.png";
}
hasExternalImages = external || hasExternalImages;
}
// fix all elems with "background" attribute
hasExternalImages = this._fixMultipartRelatedImagesRecurse(msg, this._usingIframe ? parent.body : parent) || hasExternalImages;
// did we get them all?
return !hasExternalImages;
};
ZmMailMsgView.prototype._fixMultipartRelatedImagesRecurse =
function(msg, node) {
var hasExternalImages = false;
function recurse(node){
var child = node.firstChild;
while (child) {
if (child.nodeType == AjxUtil.ELEMENT_NODE) {
hasExternalImages = ZmMailMsgView.__unfangInternalImage(msg, child, "background", true) || hasExternalImages;
recurse(child);
}
child = child.nextSibling;
}
}
if (node.innerHTML.indexOf("dfbackground") != -1) {
recurse(node);
}
else if (node.attributes && node.getAttribute("dfbackground") != -1) {
hasExternalImages = ZmMailMsgView.__unfangInternalImage(msg, node, "background", true);
}
if (!hasExternalImages && $(node).find("table[dfbackground], td[dfbackground]").length) {
hasExternalImages = true;
}
return hasExternalImages;
};
/**
* Determines if an img element references an external image
* @param elem {HTMLelement}
* @return {Boolean} true if image is external
*/
ZmMailMsgView._isExternalImage =
function(elem) {
if (!elem) {
return false;
}
return Boolean(elem.getAttribute("dfsrc"));
}
/**
* Reverses the work of the (server-side) defanger, so that images are displayed.
*
* @param {ZmMailMsg} msg mail message
* @param {Element} elem element to be checked (img)
* @param {string} aname attribute name
* @param {boolean} external if true, look only for external images
*
* @return true if the image is external
*/
ZmMailMsgView.__unfangInternalImage =
function(msg, elem, aname, external) {
var avalue, pnsrc;
try {
if (external) {
avalue = elem.getAttribute("df" + aname);
}
else {
pnsrc = avalue = elem.getAttribute("pn" + aname);
avalue = avalue || elem.getAttribute(aname);
}
}
catch(e) {
AjxDebug.println(AjxDebug.DATA_URI, "__unfangInternalImage: couldn't access attribute " + aname);
}
if (avalue) {
if (avalue.substr(0,4) == "cid:") {
var cid = "<" + AjxStringUtil.urlComponentDecode(avalue.substr(4)) + ">"; // Parse percent-escaping per bug #52085 (especially %40 to @)
avalue = msg.getContentPartAttachUrl(ZmMailMsg.CONTENT_PART_ID, cid);
if (avalue) {
elem.setAttribute(aname, avalue);
}
return false;
} else if (avalue.substring(0,4) == "doc:") {
avalue = [appCtxt.get(ZmSetting.REST_URL), ZmFolder.SEP, avalue.substring(4)].join('');
if (avalue) {
elem.setAttribute(aname, avalue);
return false;
}
} else if (pnsrc) { // check for content-location verison
avalue = msg.getContentPartAttachUrl(ZmMailMsg.CONTENT_PART_LOCATION, avalue);
if (avalue) {
elem.setAttribute(aname, avalue);
return false;
}
} else if (avalue.substring(0,5) == "data:") {
return false;
}
return true; // not recognized as inline img
}
return false;
};
ZmMailMsgView.prototype._createDisplayImageClickClosure =
function(msg, parent, id) {
var self = this;
return function(ev) {
var target = DwtUiEvent.getTarget(ev),
targetId = target ? target.id : null,
addrToAdd = "";
var diEl = document.getElementById(id);
//This is required in case of the address is marked as trusted, the function is called without any target being set
var force = (msg && msg.showImages) || appCtxt.get(ZmSetting.DISPLAY_EXTERNAL_IMAGES);
if (!force) {
if (!targetId) { return; }
if (targetId.indexOf("domain") != -1) {
//clicked on domain
addrToAdd = msg.sentByDomain;
}
else if (targetId.indexOf("email") != -1) {
//clicked on email
addrToAdd = msg.sentByAddr;
}
else if (targetId.indexOf("dispImgs") != -1) {
//do nothing here - just load the images
}
else if (targetId.indexOf("close") != -1) {
Dwt.setVisible(diEl, false);
return;
}
else {
//clicked elsewhere in the info bar - DO NOTHING AND RETURN
return;
}
}
//Create a modifyprefs req and add the addr to modify
if (addrToAdd) {
var trustedList = self.getTrustedSendersList();
trustedList.add(addrToAdd, null, true);
var callback = self._addTrustedAddrCallback.bind(self, addrToAdd);
var errorCallback = self._addTrustedAddrErrorCallback.bind(self, addrToAdd);
self._controller.addTrustedAddr(trustedList.getArray(), callback, errorCallback);
}
var images = parent.getElementsByTagName("img");
var onload = null;
if (self._usingIframe) {
onload = function() {
ZmMailMsgView._resetIframeHeight(self);
this.onload = null; // *this* is reference to <img> el.
DBG.println(AjxDebug.DBG3, "external image onload called for " + this.src);
};
}
for (var i = 0; i < images.length; i++) {
var dfsrc = images[i].getAttribute("dfsrc");
if (dfsrc && dfsrc.match(/https?:\/\/([-\w\.]+)+(:\d+)?(\/([\w\_\.]*(\?\S+)?)?)?/)) {
images[i].onload = onload;
// Fix for IE: Over HTTPS, http src urls for images might cause an issue.
try {
DBG.println(AjxDebug.DBG3, "displaying external images. src = " + images[i].src);
images[i].src = ''; //unload it first
images[i].src = images[i].getAttribute("dfsrc");
DBG.println(AjxDebug.DBG3, "displaying external images. src is now = " + images[i].src);
} catch (ex) {
// do nothing
}
}
}
//determine if any tables or table cells have an external background image
var tableCells = $(parent).find("table[dfbackground], td[dfbackground]");
for (var i=0; i<tableCells.length; i++) {
var dfbackground = $(tableCells[i]).attr("dfbackground");
if (ZmMailMsgView._URL_RE.test(dfbackground)) {
$(tableCells[i]).attr("background", dfbackground);
}
}
Dwt.setVisible(diEl, false);
self._htmlBody = self.getContentContainer().innerHTML;
if (msg) {
msg.setHtmlContent(self._htmlBody);
msg.showImages = true;
}
//Make sure the link is not followed
return false;
};
};
ZmMailMsgView.prototype._resetIframeHeightOnTimer =
function(attempt) {
if (!this._usingIframe) { return; }
DBG.println(AjxDebug.DBG1, "_resetIframeHeightOnTimer attempt: " + (attempt != null ? attempt : "null"));
// Because sometimes our view contains images that are slow to download, wait a
// little while before resizing the iframe.
var act = this._resizeAction = new AjxTimedAction(this, ZmMailMsgView._resetIframeHeight, [this, attempt]);
AjxTimedAction.scheduleAction(act, 200);
};
ZmMailMsgView.prototype._makeHighlightObjectsDiv =
function(origText) {
var self = this;
function func() {
var div = document.getElementById(self._highlightObjectsId);
div.innerHTML = ZmMsg.pleaseWaitHilitingObjects;
setTimeout(function() {
self.highlightObjects(origText);
div.parentNode.removeChild(div);
ZmMailMsgView._resetIframeHeight(self);
}, 3);
return false;
}
// avoid closure memory leaks
(function() {
var infoBarDiv = document.getElementById(self._infoBarId);
if (infoBarDiv) {
self._highlightObjectsId = ZmId.getViewId(self._viewId, ZmId.MV_HIGHLIGHT_OBJ, self._mode);
var subs = {
id: self._highlightObjectsId,
text: ZmMsg.objectsNotDisplayed,
link: ZmMsg.hiliteObjects
};
var html = AjxTemplate.expand("mail.Message#InformationBar", subs);
infoBarDiv.appendChild(Dwt.parseHtmlFragment(html));
var div = document.getElementById(subs.id+"_link");
Dwt.setHandler(div, DwtEvent.ONCLICK, func);
}
})();
};
ZmMailMsgView.prototype._stripHtmlComments =
function(html) {
// bug: 38273 - Remove HTML Comments <!-- -->
// But make sure not to remove inside style|script tags.
var regex = /<(?:!(?:--[\s\S]*?--\s*)?(>)\s*|(?:script|style|SCRIPT|STYLE)[\s\S]*?<\/(?:script|style|SCRIPT|STYLE)>)/g;
html = html.replace(regex,function(m, $1) {
return $1 ? '':m;
});
return html;
};
// Returns true (the default) if we should display content in an IFRAME as opposed to a DIV.
ZmMailMsgView.prototype._useIframe =
function(isTextMsg, html, isTruncated) {
return true;
};
// Displays the given content in an IFRAME or a DIV.
ZmMailMsgView.prototype._displayContent =
function(params) {
var html = params.html || "";
if (!params.isTextMsg) {
//Microsoft silly smilies
html = html.replace(/<span style="font-family:Wingdings">J<\/span>/g, "\u263a"); // :)
html = html.replace(/<span style="font-family:Wingdings">L<\/span>/g, "\u2639"); // :(
}
// The info bar allows the user to load external images. We show it if:
// - msg is HTML
// - user pref says not to show images up front, or this is Spam folder
// - we're not already showing images
// - there are <img> tags
var isSpam = (this._msg && this._msg.folderId == ZmOrganizer.ID_SPAM);
var imagesNotShown = (!this._msg || !this._msg.showImages);
this._needToShowInfoBar = (!params.isTextMsg &&
(!appCtxt.get(ZmSetting.DISPLAY_EXTERNAL_IMAGES) || isSpam) &&
imagesNotShown && /<img/i.test(html));
var displayImages;
if (this._needToShowInfoBar) {
displayImages = this._showInfoBar(this._infoBarId);
}
var callback;
var msgSize = (html.length / 1024);
var maxHighlightSize = appCtxt.get(ZmSetting.HIGHLIGHT_OBJECTS);
if (params.isTextMsg) {
if (this._objectManager) {
if (msgSize <= maxHighlightSize) {
callback = this.lazyFindMailMsgObjects.bind(this, 500);
} else {
this._makeHighlightObjectsDiv(params.origText);
}
}
if (AjxEnv.isSafari) {
html = "<html><head></head><body>" + html + "</body></html>";
}
} else {
html = this._stripHtmlComments(html);
if (this._objectManager) {
var images = html.match(/<img[^>]+>/ig);
msgSize = (images) ? msgSize - (images.join().length / 1024) : msgSize; // Excluding images in the message
if (msgSize <= maxHighlightSize) {
callback = this._processHtmlDoc.bind(this);
} else {
this._makeHighlightObjectsDiv();
}
}
}
var msgTruncated;
this._isMsgTruncated = false;
if (params.isTruncated) {
this._isMsgTruncated = true;
var msgTruncatedDiv = document.getElementById(this._msgTruncatedId);
if (!msgTruncatedDiv) {
var infoBarDiv = document.getElementById(this._infoBarId);
if (infoBarDiv) {
var subs = {
id: this._msgTruncatedId,
text: ZmMsg.messageTooLarge,
link: ZmMsg.viewEntireMessage
};
var msgTruncatedHtml = AjxTemplate.expand("mail.Message#InformationBar", subs);
msgTruncated = Dwt.parseHtmlFragment(msgTruncatedHtml);
infoBarDiv.appendChild(msgTruncated);
Dwt.setHandler(msgTruncated, DwtEvent.ONCLICK, this._handleMsgTruncated.bind(this));
}
}
}