gecko-dev/suite/browser/nsBrowserStatusHandler.js

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JavaScript

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Blake Ross <blakeross@telocity.com>
* Peter Annema <disttsc@bart.nl>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
function nsBrowserStatusHandler()
{
this.init();
}
nsBrowserStatusHandler.prototype =
{
// Stored Status, Link and Loading values
status : "",
defaultStatus : "",
jsStatus : "",
jsDefaultStatus : "",
overLink : "",
QueryInterface : function(aIID)
{
if (aIID.equals(Components.interfaces.nsIWebProgressListener) ||
aIID.equals(Components.interfaces.nsISupportsWeakReference) ||
aIID.equals(Components.interfaces.nsIXULBrowserWindow) ||
aIID.equals(Components.interfaces.nsISupports))
return this;
throw Components.results.NS_NOINTERFACE;
},
init : function()
{
this.urlBar = document.getElementById("urlbar");
this.throbberElement = document.getElementById("navigator-throbber");
this.statusMeter = document.getElementById("statusbar-icon");
this.stopButton = document.getElementById("stop-button");
this.stopMenu = document.getElementById("menuitem-stop");
this.stopContext = document.getElementById("context-stop");
this.statusTextField = document.getElementById("statusbar-display");
this.isImage = document.getElementById("isImage");
this.securityButton = document.getElementById("security-button");
// Initialize the security button's state and tooltip text
const nsIWebProgressListener = Components.interfaces.nsIWebProgressListener;
this.onSecurityChange(null, null, nsIWebProgressListener.STATE_IS_INSECURE);
},
destroy : function()
{
// XXXjag to avoid leaks :-/, see bug 60729
this.urlBar = null;
this.throbberElement = null;
this.statusMeter = null;
this.stopButton = null;
this.stopMenu = null;
this.stopContext = null;
this.statusTextField = null;
this.isImage = null;
this.securityButton = null;
},
setJSStatus : function(status)
{
this.jsStatus = status;
this.updateStatusField();
},
setJSDefaultStatus : function(status)
{
this.jsDefaultStatus = status;
this.updateStatusField();
},
setDefaultStatus : function(status)
{
this.defaultStatus = status;
this.updateStatusField();
},
setOverLink : function(link)
{
this.overLink = link;
// clear out 'Done' (or other message) on first hover
if (this.defaultStatus)
this.defaultStatus = "";
this.updateStatusField();
if (link)
this.statusTextField.setAttribute('crop', 'center');
else
this.statusTextField.setAttribute('crop', 'end');
},
updateStatusField : function()
{
var text = this.overLink || this.status || this.jsStatus || this.jsDefaultStatus || this.defaultStatus;
// check the current value so we don't trigger an attribute change
// and cause needless (slow!) UI updates
if (this.statusTextField.label != text)
this.statusTextField.label = text;
},
mimeTypeIsTextBased : function(contentType)
{
return /^text\/|\+xml$/.test(contentType) ||
contentType == "application/x-javascript" ||
contentType == "application/xml" ||
contentType == "mozilla.application/cached-xul";
},
onLinkIconAvailable : function(aHref)
{
if (gProxyFavIcon && pref.getBoolPref("browser.chrome.site_icons")) {
var browser = getBrowser();
if (browser.userTypedValue === null)
gProxyFavIcon.setAttribute("src", aHref);
// update any bookmarks with new icon reference
if (!gBookmarksService)
gBookmarksService = Components.classes["@mozilla.org/browser/bookmarks-service;1"]
.getService(Components.interfaces.nsIBookmarksService);
gBookmarksService.updateBookmarkIcon(browser.currentURI.spec, aHref);
}
},
onProgressChange : function (aWebProgress, aRequest,
aCurSelfProgress, aMaxSelfProgress,
aCurTotalProgress, aMaxTotalProgress)
{
if (aMaxTotalProgress > 0) {
// This is highly optimized. Don't touch this code unless
// you are intimately familiar with the cost of setting
// attrs on XUL elements. -- hyatt
var percentage = (aCurTotalProgress * 100) / aMaxTotalProgress;
this.statusMeter.value = percentage;
}
},
onStateChange : function(aWebProgress, aRequest, aStateFlags, aStatus)
{
const nsIWebProgressListener = Components.interfaces.nsIWebProgressListener;
const nsIChannel = Components.interfaces.nsIChannel;
var ctype;
if (aStateFlags & nsIWebProgressListener.STATE_START) {
// This (thanks to the filter) is a network start or the first
// stray request (the first request outside of the document load),
// initialize the throbber and his friends.
// Call start document load listeners (only if this is a network load)
if (aStateFlags & nsIWebProgressListener.STATE_IS_NETWORK &&
aRequest && aWebProgress.DOMWindow == content)
this.startDocumentLoad(aRequest);
// Turn the throbber on.
this.throbberElement.setAttribute("busy", "true");
// XXX: These need to be based on window activity...
this.stopButton.disabled = false;
this.stopMenu.removeAttribute('disabled');
this.stopContext.removeAttribute('disabled');
}
else if (aStateFlags & nsIWebProgressListener.STATE_STOP) {
if (aStateFlags & nsIWebProgressListener.STATE_IS_NETWORK) {
if (aRequest) {
if (aWebProgress.DOMWindow == content)
this.endDocumentLoad(aRequest, aStatus);
}
}
// This (thanks to the filter) is a network stop or the last
// request stop outside of loading the document, stop throbbers
// and progress bars and such
if (aRequest) {
var msg = "";
// Get the channel if the request is a channel
var channel;
try {
channel = aRequest.QueryInterface(nsIChannel);
}
catch(e) { };
if (channel) {
var location = channel.URI.spec;
if (location != "about:blank") {
const kErrorBindingAborted = 0x804B0002;
const kErrorNetTimeout = 0x804B000E;
switch (aStatus) {
case kErrorBindingAborted:
msg = gNavigatorBundle.getString("nv_stopped");
break;
case kErrorNetTimeout:
msg = gNavigatorBundle.getString("nv_timeout");
break;
}
}
}
// If msg is false then we did not have an error (channel may have
// been null, in the case of a stray image load).
if (!msg) {
msg = gNavigatorBundle.getString("nv_done");
}
this.status = "";
this.setDefaultStatus(msg);
// Disable menu entries for images, enable otherwise
if (content.document && this.mimeTypeIsTextBased(content.document.contentType))
this.isImage.removeAttribute('disabled');
else
this.isImage.setAttribute('disabled', 'true');
}
// Turn the progress meter and throbber off.
this.statusMeter.value = 0; // be sure to clear the progress bar
this.throbberElement.removeAttribute("busy");
// XXX: These need to be based on window activity...
// XXXjag: <command id="cmd_stop"/> ?
this.stopButton.disabled = true;
this.stopMenu.setAttribute('disabled', 'true');
this.stopContext.setAttribute('disabled', 'true');
}
},
onLocationChange : function(aWebProgress, aRequest, aLocation)
{
// XXX temporary hack for bug 104532.
// Depends heavily on setOverLink implementation
if (!aRequest)
this.status = this.jsStatus = this.jsDefaultStatus = "";
this.setOverLink("");
var locationURI = null;
var location = "";
if (aLocation) {
try {
if (!gURIFixup)
gURIFixup = Components.classes["@mozilla.org/docshell/urifixup;1"]
.getService(Components.interfaces.nsIURIFixup);
// If the url has "wyciwyg://" as the protocol, strip it off.
// Nobody wants to see it on the urlbar for dynamically generated
// pages.
locationURI = gURIFixup.createExposableURI(aLocation);
location = locationURI.spec;
}
catch(ex) {
location = aLocation.spec;
}
}
if (!getWebNavigation().canGoBack && location == "about:blank")
location = "";
// Disable menu entries for images, enable otherwise
if (content.document && this.mimeTypeIsTextBased(content.document.contentType))
this.isImage.removeAttribute('disabled');
else
this.isImage.setAttribute('disabled', 'true');
// We should probably not do this if the value has changed since the user
// searched
// Update urlbar only if a new page was loaded on the primary content area
// Do not update urlbar if there was a subframe navigation
var browser = getBrowser().selectedBrowser;
if (aWebProgress.DOMWindow == content) {
// The document loaded correctly, clear the value if we should
if (browser.userTypedClear)
browser.userTypedValue = null;
var userTypedValue = browser.userTypedValue;
if (userTypedValue === null) {
this.urlBar.value = location;
SetPageProxyState("valid", aLocation);
// Setting the urlBar value in some cases causes userTypedValue to
// become set because of oninput, so reset it to null
browser.userTypedValue = null;
} else {
this.urlBar.value = userTypedValue;
SetPageProxyState("invalid", null);
}
}
UpdateBackForwardButtons();
var blank = (location == "about:blank") || (location == "");
//clear popupDomain accordingly so that icon will go away when visiting
//an unblocked site after a blocked site. note: if a popup is blocked
//the icon will stay as long as we are in the same domain.
if (blank ||
!("popupDomain" in browser)) {
browser.popupDomain = null;
}
else {
var hostPort = "";
try {
hostPort = locationURI.hostPort;
}
catch(ex) { }
if (hostPort != browser.popupDomain)
browser.popupDomain = null;
}
var popupIcon = document.getElementById("popupIcon");
popupIcon.hidden = !browser.popupDomain;
},
onStatusChange : function(aWebProgress, aRequest, aStatus, aMessage)
{
this.status = aMessage;
this.updateStatusField();
},
onSecurityChange : function(aWebProgress, aRequest, aState)
{
const wpl = Components.interfaces.nsIWebProgressListener;
switch (aState) {
case wpl.STATE_IS_SECURE | wpl.STATE_SECURE_HIGH:
this.securityButton.setAttribute("level", "high");
break;
case wpl.STATE_IS_SECURE | wpl.STATE_SECURE_LOW:
this.securityButton.setAttribute("level", "low");
break;
case wpl.STATE_IS_BROKEN:
this.securityButton.setAttribute("level", "broken");
break;
case wpl.STATE_IS_INSECURE:
default:
this.securityButton.removeAttribute("level");
break;
}
var securityUI = getBrowser().securityUI;
if (securityUI)
this.securityButton.setAttribute("tooltiptext", securityUI.tooltipText);
else
this.securityButton.removeAttribute("tooltiptext");
},
startDocumentLoad : function(aRequest)
{
// It's okay to clear what the user typed when we start
// loading a document. If the user types, this flag gets
// set to false, if the document load ends without an
// onLocationChange, this flag also gets set to false
// (so we keep it while switching tabs after failed load
getBrowser().userTypedClear = true;
const nsIChannel = Components.interfaces.nsIChannel;
var urlStr = aRequest.QueryInterface(nsIChannel).URI.spec;
var observerService = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
try {
observerService.notifyObservers(_content, "StartDocumentLoad", urlStr);
} catch (e) {
}
},
endDocumentLoad : function(aRequest, aStatus)
{
// The document is done loading, it's okay to clear
// the value again.
getBrowser().userTypedClear = false;
const nsIChannel = Components.interfaces.nsIChannel;
var urlStr = aRequest.QueryInterface(nsIChannel).originalURI.spec;
if (Components.isSuccessCode(aStatus))
dump("Document "+urlStr+" loaded successfully\n"); // per QA request
else {
// per QA request
var e = new Components.Exception("", aStatus);
var name = e.name;
dump("Error loading URL "+urlStr+" : "+
Number(aStatus).toString(16));
if (name)
dump(" ("+name+")");
dump('\n');
}
var observerService = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
var notification = Components.isSuccessCode(aStatus) ? "EndDocumentLoad" : "FailDocumentLoad";
try {
observerService.notifyObservers(_content, notification, urlStr);
} catch (e) {
}
}
}