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gecko-dev/browser/base/content/pageInfo.js
Jan.Varga%gmail.com e5158d88ef Fix for bug 296040. Cell-based selection in trees 
r=Neil Deakin, sr=Neil Rashbrook, sponsored by BEToptions
2006-06-06 20:05:13 +00:00

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# -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla 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/MPL/
#
# 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) 1998-2004
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# smorrison@gte.com
# Terry Hayes <thayes@netscape.com>
# Daniel Brooks <db48x@yahoo.com>
# Florian QUEZE <f.qu@laposte.net>
# Erik Fabert <jerfa@yahoo.com>
#
# 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 MPL, 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 MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
//******** define a js object to implement nsITreeView
function pageInfoTreeView(columnids, copycol)
{
// columnids is an array of strings indicating the names of the columns, in order
this.columnids = columnids;
this.colcount = columnids.length
// copycol is the index number for the column that we want to add to
// the copy-n-paste buffer when the user hits accel-c
this.copycol = copycol;
this.rows = 0;
this.tree = null;
this.data = new Array;
this.selection = null;
this.sortcol = null;
this.sortdir = 0;
}
pageInfoTreeView.prototype = {
set rowCount(c) { throw "rowCount is a readonly property"; },
get rowCount() { return this.rows; },
setTree: function(tree)
{
this.tree = tree;
},
getCellText: function(row, column)
{
// row can be null, but js arrays are 0-indexed.
// colidx cannot be null, but can be larger than the number
// of columns in the array (when column is a string not in
// this.columnids.) In this case it's the fault of
// whoever typoed while calling this function.
return this.data[row][column.index] || "";
},
setCellValue: function(row, column, value)
{
},
setCellText: function(row, column, value)
{
this.data[row][column.index] = value;
},
addRow: function(row)
{
this.rows = this.data.push(row);
this.rowCountChanged(this.rows - 1, 1);
},
addRows: function(rows)
{
var length = rows.length;
for(var i = 0; i < length; i++)
this.rows = this.data.push(rows[i]);
this.rowCountChanged(this.rows - length, length);
},
rowCountChanged: function(index, count)
{
this.tree.rowCountChanged(index, count);
},
invalidate: function()
{
this.tree.invalidate();
},
clear: function()
{
this.data = new Array;
this.rows = 0;
},
handleCopy: function(row)
{
return (row < 0 || this.copycol < 0) ? "" : (this.data[row][this.copycol] || "");
},
performActionOnRow: function(action, row)
{
if (action == "copy")
{
var data = this.handleCopy(row)
this.tree.treeBody.parentNode.setAttribute("copybuffer", data);
}
},
getRowProperties: function(row, prop) { },
getCellProperties: function(row, column, prop) { },
getColumnProperties: function(column, prop) { },
isContainer: function(index) { return false; },
isContainerOpen: function(index) { return false; },
isSeparator: function(index) { return false; },
isSorted: function() { },
canDrop: function(index, orientation) { return false; },
drop: function(row, orientation) { return false; },
getParentIndex: function(index) { return 0; },
hasNextSibling: function(index, after) { return false; },
getLevel: function(index) { return 0; },
getImageSrc: function(row, column) { },
getProgressMode: function(row, column) { },
getCellValue: function(row, column) { },
toggleOpenState: function(index) { },
cycleHeader: function(col) { },
selectionChanged: function() { },
cycleCell: function(row, column) { },
isEditable: function(row, column) { return false; },
isSelectable: function(row, column) { return false; },
performAction: function(action) { },
performActionOnCell: function(action, row, column) { }
};
// mmm, yummy. global variables.
var theWindow = null;
var theDocument = null;
// column number to copy from, second argument to pageInfoTreeView's constructor
const COPYCOL_NONE = -1;
const COPYCOL_META_CONTENT = 1;
const COPYCOL_FORM_ACTION = 2;
const COPYCOL_LINK_ADDRESS = 1;
const COPYCOL_IMAGE_ADDRESS = 0;
// one nsITreeView for each tree in the window
var metaView = new pageInfoTreeView(["meta-name","meta-content"], COPYCOL_META_CONTENT);
var formView = new pageInfoTreeView(["form-name","form-method","form-action","form-node"], COPYCOL_FORM_ACTION);
var fieldView = new pageInfoTreeView(["field-label","field-field","field-type","field-value"], COPYCOL_NONE);
var linkView = new pageInfoTreeView(["link-name","link-address","link-type","link-accesskey"], COPYCOL_LINK_ADDRESS);
var imageView = new pageInfoTreeView(["image-address","image-type","image-alt","image-count","image-node","image-bg"], COPYCOL_IMAGE_ADDRESS);
var imageHash = {};
var kmsPerSec = 1000;
// localized strings (will be filled in when the document is loaded)
// this isn't all of them, these are just the ones that would otherwise have been loaded inside a loop
var gStrings = {}
var theBundle;
const DRAGSERVICE_CONTRACTID = "@mozilla.org/widget/dragservice;1";
const TRANSFERABLE_CONTRACTID = "@mozilla.org/widget/transferable;1";
const ARRAY_CONTRACTID = "@mozilla.org/supports-array;1";
const STRING_CONTRACTID = "@mozilla.org/supports-string;1";
// a number of services I'll need later
// the cache services
const nsICacheService = Components.interfaces.nsICacheService;
const cacheService = Components.classes["@mozilla.org/network/cache-service;1"].getService(nsICacheService);
var httpCacheSession = cacheService.createSession("HTTP", 0, true);
httpCacheSession.doomEntriesIfExpired = false;
var ftpCacheSession = cacheService.createSession("FTP", 0, true);
ftpCacheSession.doomEntriesIfExpired = false;
// scriptable date formater, for pretty printing dates
const nsIScriptableDateFormat = Components.interfaces.nsIScriptableDateFormat;
var dateService = Components.classes["@mozilla.org/intl/scriptabledateformat;1"].getService(nsIScriptableDateFormat);
// clipboard helper
try
{
const gClipboardHelper = Components.classes["@mozilla.org/widget/clipboardhelper;1"].getService(Components.interfaces.nsIClipboardHelper);
}
catch(e)
{
// do nothing, later code will handle the error
}
// interfaces for the different html elements
const nsIAnchorElement = Components.interfaces.nsIDOMHTMLAnchorElement
const nsIImageElement = Components.interfaces.nsIDOMHTMLImageElement
const nsIAreaElement = Components.interfaces.nsIDOMHTMLAreaElement
const nsILinkElement = Components.interfaces.nsIDOMHTMLLinkElement
const nsIInputElement = Components.interfaces.nsIDOMHTMLInputElement
const nsIFormElement = Components.interfaces.nsIDOMHTMLFormElement
const nsIAppletElement = Components.interfaces.nsIDOMHTMLAppletElement
const nsIObjectElement = Components.interfaces.nsIDOMHTMLObjectElement
const nsIEmbedElement = Components.interfaces.nsIDOMHTMLEmbedElement
const nsIButtonElement = Components.interfaces.nsIDOMHTMLButtonElement
const nsISelectElement = Components.interfaces.nsIDOMHTMLSelectElement
const nsITextareaElement = Components.interfaces.nsIDOMHTMLTextAreaElement
const nsIQuoteElement = Components.interfaces.nsIDOMHTMLQuoteElement
const nsIModElement = Components.interfaces.nsIDOMHTMLModElement
// Interface for image loading content
const nsIImageLoadingContent = Components.interfaces.nsIImageLoadingContent;
// namespaces, don't need all of these yet...
const XLinkNS = "http://www.w3.org/1999/xlink";
const XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
const XMLNS = "http://www.w3.org/XML/1998/namespace";
const XHTMLNS = "http://www.w3.org/1999/xhtml";
const XHTML2NS = "http://www.w3.org/2002/06/xhtml2"
const XHTMLNSre = "^http\:\/\/www\.w3\.org\/1999\/xhtml$";
const XHTML2NSre = "^http\:\/\/www\.w3\.org\/2002\/06\/xhtml2$";
const XHTMLre = RegExp(XHTMLNSre + "|" + XHTML2NSre, "");
/* Overlays register init functions here.
* Add functions to call by invoking "onLoadRegistry.append(XXXLoadFunc);"
* The XXXLoadFunc should be unique to the overlay module, and will be
* invoked as "XXXLoadFunc();"
*/
var onLoadRegistry = [ ];
/* Called when PageInfo window is loaded. Arguments are:
* window.arguments[0] - (optional) an object consisting of
* - doc: (optional) document to use for source. if not provided,
* the calling window's document will be used
* - initialTab: (optional) id of the inital tab to display
*/
function onLoadPageInfo()
{
//dump("===============================================================================\n");
theBundle = document.getElementById("pageinfobundle");
gStrings.unknown = theBundle.getString("unknown");
gStrings.notSet = theBundle.getString("notset");
gStrings.emptyString = theBundle.getString("emptystring");
gStrings.noExpiration = theBundle.getString("generalNoExpiration");
gStrings.linkAnchor = theBundle.getString("linkAnchor");
gStrings.linkArea = theBundle.getString("linkArea");
gStrings.linkSubmit = theBundle.getString("linkSubmit");
gStrings.linkSubmission = theBundle.getString("linkSubmission");
gStrings.linkRel = theBundle.getString("linkRel");
gStrings.linkStylesheet = theBundle.getString("linkStylesheet");
gStrings.linkRev = theBundle.getString("linkRev");
gStrings.linkX = theBundle.getString("linkX");
gStrings.linkQuote = theBundle.getString("linkQuote");
gStrings.linkMod = theBundle.getString("linkMod");
gStrings.mediaImg = theBundle.getString("mediaImg");
gStrings.mediaBGImg = theBundle.getString("mediaBGImg");
gStrings.mediaApplet = theBundle.getString("mediaApplet");
gStrings.mediaObject = theBundle.getString("mediaObject");
gStrings.mediaEmbed = theBundle.getString("mediaEmbed");
gStrings.mediaLink = theBundle.getString("mediaLink");
gStrings.mediaInput = theBundle.getString("mediaInput");
var docTitle = "";
if ("arguments" in window && window.arguments.length >= 1 &&
window.arguments[0] && window.arguments[0].doc)
{
theWindow = null;
theDocument = window.arguments[0].doc;
docTitle = theBundle.getString("frameInfo.title");
}
else
{
if ("gBrowser" in window.opener)
theWindow = window.opener.gBrowser.contentWindow;
else
theWindow = window.opener.frames[0];
theDocument = theWindow.document;
docTitle = theBundle.getString("pageInfo.title");
}
document.title = docTitle;
document.getElementById("main-window").setAttribute("relatedUrl", theDocument.location.toString());
// do the easy stuff first
makeGeneralTab();
// and then the hard stuff
makeTabs(theDocument, theWindow);
/* Call registered overlay init functions */
for (x in onLoadRegistry)
{
onLoadRegistry[x]();
}
/* Select the requested tab, if the name is specified */
var tabControl = document.getElementById("tabbox");
if ("arguments" in window && window.arguments.length >= 1 &&
window.arguments[0] && window.arguments[0].initialTab)
{
var tab = document.getElementById(window.arguments[0].initialTab);
if (tab)
{
tabControl.selectedTab = tab;
}
}
tabControl.selectedTab.focus();
}
function doHelpButton() {
var helpdoc;
var tabControl = document.getElementById("tabbox");
switch (tabControl.selectedTab.id) {
case "generalTab":
helpdoc = "pageinfo_general";
break;
case "formsTab":
helpdoc = "pageinfo_forms";
break;
case "linksTab":
helpdoc = "pageinfo_links";
break;
case "mediaTab":
helpdoc = "pageinfo_media";
break;
case "securityTab":
helpdoc = "pageinfo_security";
break;
case "p3pTab":
helpdoc = "pageinfo_privacy";
break;
default:
helpdoc = "pageinfo_general";
break;
}
openHelp(helpdoc, 'chrome://browser/locale/help/help.rdf');
}
function makeGeneralTab()
{
var title = (theDocument.title) ? theBundle.getFormattedString("pageTitle", [theDocument.title]) : theBundle.getString("noPageTitle");
document.getElementById("titletext").value = title;
var url = theDocument.location.toString();
setItemValue("urltext", url, gStrings.unknown);
var mode = ("compatMode" in theDocument && theDocument.compatMode == "BackCompat") ? theBundle.getString("generalQuirksMode") : theBundle.getString("generalStrictMode");
document.getElementById("modetext").value = mode;
var referrer = ("referrer" in theDocument && theDocument.referrer);
setItemValue("refertext", referrer);
// find out the mime type
var mimeType = theDocument.contentType;
setItemValue("typetext", mimeType, gStrings.unknown);
// get the meta tags
var metaNodes = theDocument.getElementsByTagName("meta");
var metaTree = document.getElementById("metatree");
metaTree.treeBoxObject.view = metaView;
var length = metaNodes.length;
for (var i = 0; i < length; i++)
metaView.addRow([metaNodes[i].name || metaNodes[i].httpEquiv, metaNodes[i].content]);
// get the document characterset
var encoding = theDocument.characterSet;
document.getElementById("encodingtext").value = encoding;
// get the date of last modification
var modifiedText = formatDate(theDocument.lastModified, gStrings.notSet);
document.getElementById("modifiedtext").value = modifiedText;
// get cache info
var sourceText;
var expirationText;
var sizeText;
var pageSize = 0;
var kbSize = 0;
var expirationTime = 0;
var cacheKey = url.replace(/#.*$/, "");
try
{
var cacheEntryDescriptor = httpCacheSession.openCacheEntry(cacheKey, Components.interfaces.nsICache.ACCESS_READ, false);
if (cacheEntryDescriptor)
{
switch(cacheEntryDescriptor.deviceID)
{
case "disk":
sourceText = theBundle.getString("generalDiskCache");
break;
case "memory":
sourceText = theBundle.getString("generalMemoryCache");
break;
default:
sourceText = cacheEntryDescriptor.deviceID;
break;
}
}
}
catch(ex)
{
try
{
cacheEntryDescriptor = ftpCacheSession.openCacheEntry(cacheKey, Components.interfaces.nsICache.ACCESS_READ, false);
if (cacheEntryDescriptor)
{
switch(cacheEntryDescriptor.deviceID)
{
case "disk":
sourceText = theBundle.getString("generalDiskCache");
break;
case "memory":
sourceText = theBundle.getString("generalMemoryCache");
break;
default:
sourceText = cacheEntryDescriptor.deviceID;
break;
}
}
}
catch(ex2)
{
}
}
if (cacheEntryDescriptor)
{
pageSize = cacheEntryDescriptor.dataSize;
kbSize = pageSize / 1024;
sizeText = theBundle.getFormattedString("generalSize", [formatNumber(Math.round(kbSize*100)/100), formatNumber(pageSize)]);
expirationText = formatDate(cacheEntryDescriptor.expirationTime*kmsPerSec, gStrings.notSet);
}
setItemValue("sourcetext", sourceText, theBundle.getString("generalNotCached"));
setItemValue("expirestext", expirationText, gStrings.noExpiration);
setItemValue("sizetext", sizeText, gStrings.unknown);
}
//******** Generic Build-a-tab
// Assumes the views are empty. Only called once to build the tabs, and
// does so by farming the task off to another thread via setTimeout().
// The actual work is done with a TreeWalker that calls doGrab() once for
// each element node in the document.
function makeTabs(aDocument, aWindow)
{
if (aWindow && aWindow.frames.length > 0)
{
var num = aWindow.frames.length;
for (var i = 0; i < num; i++)
makeTabs(aWindow.frames[i].document, aWindow.frames[i]); // recurse through the frames
}
var formTree = document.getElementById("formtree");
var linkTree = document.getElementById("linktree");
var imageTree = document.getElementById("imagetree");
formTree.treeBoxObject.view = formView;
linkTree.treeBoxObject.view = linkView;
imageTree.treeBoxObject.view = imageView;
var iterator = aDocument.createTreeWalker(aDocument, NodeFilter.SHOW_ELEMENT, grabAll, true);
setTimeout(doGrab, 16, iterator);
}
function doGrab(iterator)
{
for (var i = 0; i < 50; ++i)
if (!iterator.nextNode())
return;
setTimeout(doGrab, 16, iterator);
}
function ensureSelection(view)
{
// only select something if nothing is currently selected
// and if there's anything to select
if (view.selection.count == 0 && view.rowCount)
view.selection.select(0);
}
function addImage(url, type, alt, elem, isBg)
{
if (url == "")
return;
if (!(url in imageHash))
imageHash[url] = {};
if (!(type in imageHash[url]))
imageHash[url][type] = {};
if (!(alt in imageHash[url][type])) {
imageHash[url][type][alt] = imageView.data.length;
imageView.addRow([url, type, alt, 1, elem, isBg]);
} else {
var i = imageHash[url][type][alt];
imageView.data[i][3]++;
}
}
function grabAll(elem)
{
// check for background images, any node may have one
var ComputedStyle = elem.ownerDocument.defaultView.getComputedStyle(elem, "");
var url = ComputedStyle && ComputedStyle.getPropertyCSSValue("background-image");
if (url && url.primitiveType == CSSPrimitiveValue.CSS_URI)
addImage(url.getStringValue(), gStrings.mediaBGImg, gStrings.notSet, elem, true);
// one swi^H^H^Hif-else to rule them all
if (elem instanceof nsIAnchorElement)
linkView.addRow([getValueText(elem), elem.href, gStrings.linkAnchor, elem.target, elem.accessKey]);
else if (elem instanceof nsIImageElement)
addImage(elem.src, gStrings.mediaImg, (elem.hasAttribute("alt")) ? elem.alt : gStrings.notSet, elem, false);
else if (elem instanceof nsIAreaElement)
linkView.addRow([elem.alt, elem.href, gStrings.linkArea, elem.target]);
else if (elem instanceof nsIQuoteElement && elem.cite)
linkView.addRow([getValueText(elem), elem.cite, gStrings.linkQuote]);
else if (elem instanceof nsIModElement && elem.cite)
linkView.addRow([getValueText(elem), elem.cite, gStrings.linkMod]);
else if (elem instanceof nsILinkElement)
{
if (elem.rel)
{
var rel = elem.rel;
if (/\bicon\b/i.test(rel))
addImage(elem.href, gStrings.mediaLink, "", elem, false);
else if (/\bstylesheet\b/i.test(rel))
linkView.addRow([elem.rel, elem.href, gStrings.linkStylesheet, elem.target]);
else
linkView.addRow([elem.rel, elem.href, gStrings.linkRel, elem.target]);
}
else
linkView.addRow([elem.rev, elem.href, gStrings.linkRev, elem.target]);
}
else if (elem instanceof nsIInputElement || elem instanceof nsIButtonElement)
{
switch (elem.type.toLowerCase())
{
case "image":
addImage(elem.src, gStrings.mediaInput, (elem.hasAttribute("alt")) ? elem.alt : gStrings.notSet, elem, false);
// Fall through, <input type="image"> submits, too
case "submit":
if ("form" in elem && elem.form)
{
linkView.addRow([elem.value || getValueText(elem) || gStrings.linkSubmit, elem.form.action, gStrings.linkSubmission, elem.form.target]);
}
else
linkView.addRow([elem.value || getValueText(elem) || gStrings.linkSubmit, '', gStrings.linkSubmission, '']);
}
}
else if (elem instanceof nsIFormElement)
{
formView.addRow([elem.name, elem.method, elem.action, elem]);
}
else if (elem instanceof nsIAppletElement)
{
//XXX When Java is enabled, the DOM model for <APPLET> is broken. Bug #59686.
// Also, some reports of a crash with Java in Media tab (bug 136535), and mixed
// content from two hosts (bug 136539) so just drop applets from Page Info when
// Java is on. For the 1.0.1 branch; get a real fix on the trunk.
if (!navigator.javaEnabled())
addImage(elem.code || elem.object, gStrings.mediaApplet, "", elem, false);
}
else if (elem instanceof nsIObjectElement)
addImage(elem.data, gStrings.mediaObject, getValueText(elem), elem, false);
else if (elem instanceof nsIEmbedElement)
addImage(elem.src, gStrings.mediaEmbed, "", elem, false);
else if (elem.hasAttributeNS(XLinkNS, "href")) {
var ioService = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
var href = elem.getAttributeNS(XLinkNS, "href");
try {
var baseURI = ioService.newURI(elem.baseURI,
elem.ownerDocument.characterSet, null);
var uri = ioService.newURI(href, elem.ownerDocument.characterSet,
baseURI).spec;
} catch (e) {}
linkView.addRow([getValueText(elem), uri, gStrings.linkX, ""]);
}
return NodeFilter.FILTER_ACCEPT;
}
//******** Form Stuff
function onFormSelect()
{
var formTree = document.getElementById("formtree");
if (!formView.rowCount) return;
if (formView.selection.count == 1)
{
var formPreview = document.getElementById("formpreview");
fieldView.clear();
formPreview.treeBoxObject.view = fieldView;
var clickedRow = formView.selection.currentIndex;
// form-node;
var form = formView.data[clickedRow][3];
var ft = null;
if (form.name)
ft = theBundle.getFormattedString("formTitle", [form.name]);
setItemValue("formenctype", form.encoding, theBundle.getString("default"));
setItemValue("formtarget", form.target, theBundle.getString("formDefaultTarget"));
document.getElementById("formname").value = ft || theBundle.getString("formUntitled");
var formfields = form.elements;
var length = formfields.length;
var checked = theBundle.getString("formChecked");
var unchecked = theBundle.getString("formUnchecked");
for (var i = 0; i < length; i++)
{
var elem = formfields[i], val;
if (elem instanceof nsIButtonElement)
val = getValueText(elem);
else
val = (/^password$/i.test(elem.type)) ? theBundle.getString("formPassword") : elem.value;
fieldView.addRow(["", elem.name, elem.type, val]);
}
var labels = form.getElementsByTagName("label");
var llength = labels.length;
var label;
for (i = 0; i < llength; i++)
{
label = labels[i];
var whatfor = label.hasAttribute("for") ?
theDocument.getElementById(label.getAttribute("for")) :
findFirstControl(label);
if (whatfor && (whatfor.form == form))
{
var labeltext = getValueText(label);
for (var j = 0; j < length; j++)
if (formfields[j] == whatfor) {
var col = formPreview.columns["field-label"];
fieldView.setCellText(j, col, labeltext);
}
}
}
}
}
function FormControlFilter(node)
{
if (node instanceof nsIInputElement || node instanceof nsISelectElement ||
node instanceof nsIButtonElement || node instanceof nsITextareaElement ||
node instanceof nsIObjectElement)
return NodeFilter.FILTER_ACCEPT;
return NodeFilter.FILTER_SKIP;
}
function findFirstControl(node)
{
var iterator = theDocument.createTreeWalker(node, NodeFilter.SHOW_ELEMENT, FormControlFilter, true);
return iterator.nextNode();
}
//******** Link Stuff
function openURL(target)
{
var url = target.parentNode.childNodes[2].value;
window.open(url, "_blank", "chrome");
}
function onBeginLinkDrag(event,urlField,descField)
{
if (event.originalTarget.localName != "treechildren")
return;
var tree = event.target;
if (!("treeBoxObject" in tree))
tree = tree.parentNode;
var row = tree.treeBoxObject.getRowAt(event.clientX, event.clientY);
if (row == -1)
return;
// Getting drag-system needed services
var dragService = Components.classes[DRAGSERVICE_CONTRACTID].getService().QueryInterface(Components.interfaces.nsIDragService);
var transArray = Components.classes[ARRAY_CONTRACTID].createInstance(Components.interfaces.nsISupportsArray);
if (!transArray)
return;
var trans = Components.classes[TRANSFERABLE_CONTRACTID].createInstance(Components.interfaces.nsITransferable);
if (!trans)
return;
// Adding URL flavor
trans.addDataFlavor("text/x-moz-url");
var col = tree.columns[urlField];
var url = tree.view.getCellText(row, col);
col = tree.columns[descField];
var desc = tree.view.getCellText(row, col);
var stringURL = Components.classes[STRING_CONTRACTID].createInstance(Components.interfaces.nsISupportsString);
stringURL.data = url + "\n"+desc;
trans.setTransferData("text/x-moz-url", stringURL, stringURL.data.length * 2 );
transArray.AppendElement(trans.QueryInterface(Components.interfaces.nsISupports));
dragService.invokeDragSession(event.target, transArray, null, dragService.DRAGDROP_ACTION_NONE);
}
//******** Image Stuff
function getSelectedImage(tree)
{
if (!imageView.rowCount) return null;
// Only works if only one item is selected
var clickedRow = tree.currentIndex;
// image-node
return imageView.data[clickedRow][4];
}
function saveMedia()
{
var tree = document.getElementById("imagetree");
var item = getSelectedImage(tree);
var url = imageView.data[tree.currentIndex][0];
if (url)
// XXX Firefox specfic
saveURL(url, null, 'SaveImageTitle', false, false, makeURI(item.baseURI));
}
function onImageSelect()
{
var tree = document.getElementById("imagetree");
var saveAsButton = document.getElementById("imagesaveasbutton");
if (tree.view.selection.count == 1)
{
makePreview(tree.view.selection.currentIndex);
saveAsButton.setAttribute("disabled", "false");
}
else
saveAsButton.setAttribute("disabled", "true");
}
function makePreview(row)
{
var imageTree = document.getElementById("imagetree");
var item = getSelectedImage(imageTree);
var col = imageTree.columns["image-address"];
var url = imageView.getCellText(row, col);
// image-bg
var isBG = imageView.data[row][5];
setItemValue("imageurltext", url);
if (item.hasAttribute("title"))
setItemValue("imagetitletext", item.title, gStrings.emptyString);
else
setItemValue("imagetitletext", null);
if (item.hasAttribute("longDesc"))
setItemValue("imagelongdesctext", item.longDesc, gStrings.emptyString);
else
setItemValue("imagelongdesctext", null);
if (item.hasAttribute("alt"))
setItemValue("imagealttext", item.alt, gStrings.emptyString);
else if (item instanceof nsIImageElement || isBG)
setItemValue("imagealttext", null);
else
setItemValue("imagealttext", getValueText(item));
// get cache info
var sourceText = theBundle.getString("generalNotCached");
var expirationText;
var sizeText;
var pageSize = 0;
var kbSize = 0;
var expirationTime = 0;
var expirationDate = null;
document.getElementById("imagesourcetext").removeAttribute("disabled");
var cacheKey = url.replace(/#.*$/, "");
try
{
var cacheEntryDescriptor = httpCacheSession.openCacheEntry(cacheKey, Components.interfaces.nsICache.ACCESS_READ, false); // open for READ, in non-blocking mode
if (cacheEntryDescriptor)
{
switch(cacheEntryDescriptor.deviceID)
{
case "disk":
sourceText = theBundle.getString("generalDiskCache");
break;
case "memory":
sourceText = theBundle.getString("generalMemoryCache");
break;
default:
sourceText = cacheEntryDescriptor.deviceID;
break;
}
}
}
catch(ex)
{
try
{
cacheEntryDescriptor = ftpCacheSession.openCacheEntry(cacheKey, Components.interfaces.nsICache.ACCESS_READ, false); // open for READ, in non-blocking mode
if (cacheEntryDescriptor)
{
switch(cacheEntryDescriptor.deviceID)
{
case "disk":
sourceText = theBundle.getString("generalDiskCache");
break;
case "memory":
sourceText = theBundle.getString("generalMemoryCache");
break;
default:
sourceText = cacheEntryDescriptor.deviceID;
break;
}
}
}
catch(ex2)
{
}
}
// find out the file size and expiration date
if (cacheEntryDescriptor)
{
pageSize = cacheEntryDescriptor.dataSize;
kbSize = pageSize / 1024;
sizeText = theBundle.getFormattedString("generalSize", [formatNumber(Math.round(kbSize*100)/100), formatNumber(pageSize)]);
expirationText = formatDate(cacheEntryDescriptor.expirationTime*kmsPerSec, null);
}
setItemValue("imageexpirestext", expirationText, gStrings.noExpiration);
setItemValue("imagesizetext", sizeText, gStrings.unknown);
setItemValue("imagesourcetext", sourceText, theBundle.getString("generalNotCached"));
var mimeType;
if (item instanceof nsIObjectElement || item instanceof nsIEmbedElement || item instanceof nsILinkElement)
mimeType = item.type;
if (!mimeType)
mimeType = getContentTypeFromImgRequest(item) ||
getContentTypeFromHeaders(cacheEntryDescriptor);
setItemValue("imagetypetext", mimeType, gStrings.unknown);
var imageContainer = document.getElementById("theimagecontainer");
var oldImage = document.getElementById("thepreviewimage");
const regex = /^(https?|ftp|file|gopher|about|chrome|resource):/;
var isProtocolAllowed = regex.test(url);
if (/^data:/.test(url) && /^image\//.test(mimeType))
isProtocolAllowed = true;
var newImage = new Image();
newImage.setAttribute("id", "thepreviewimage");
var physWidth = 0, physHeight = 0;
var width = 0, height = 0;
if ((item instanceof nsILinkElement || item instanceof nsIInputElement || item instanceof nsIImageElement ||
(item instanceof nsIObjectElement && /^image\//.test(mimeType)) || isBG) && isProtocolAllowed)
{
newImage.setAttribute("src", url);
physWidth = newImage.width || 0;
physHeight = newImage.height || 0;
// "width" and "height" attributes must be set to newImage,
// even if there is no "width" or "height attribute in item;
// otherwise, the preview image cannot be displayed correctly.
if (!isBG)
{
newImage.width = ("width" in item && item.width) || newImage.naturalWidth;
newImage.height = ("height" in item && item.height) || newImage.naturalHeight;
}
else
{
// the Width and Height of an HTML tag should not be use for its background image
// (for example, "table" can have "width" or "height" attributes)
newImage.width = newImage.naturalWidth;
newImage.height = newImage.naturalHeight;
}
width = newImage.width;
height = newImage.height;
document.getElementById("theimagecontainer").collapsed = false
document.getElementById("brokenimagecontainer").collapsed = true;
}
else
{
// fallback image for protocols not allowed (e.g., data: or javascript:)
// or elements not [yet] handled (e.g., object, embed).
document.getElementById("brokenimagecontainer").collapsed = false;
document.getElementById("theimagecontainer").collapsed = true;
}
var imageSize = document.getElementById("imageSize");
if (url)
{
imageSize.value = theBundle.getFormattedString("mediaSize", [formatNumber(width), formatNumber(height)]);
imageSize.removeAttribute("disabled");
}
else
{
imageSize.value = gStrings.notSet;
imageSize.setAttribute("disabled", "true");
}
var physRow = document.getElementById("physRow");
if (width != physWidth || height != physHeight)
{
physRow.collapsed = false;
document.getElementById("physSize").value = theBundle.getFormattedString("mediaSize", [formatNumber(physWidth), formatNumber(physHeight)]);
}
else
physRow.collapsed = true;
imageContainer.removeChild(oldImage);
imageContainer.appendChild(newImage);
}
function getContentTypeFromHeaders(cacheEntryDescriptor)
{
if (!cacheEntryDescriptor)
return null;
return (/^Content-Type:\s*(.*?)\s*(?:\;|$)/mi
.exec(cacheEntryDescriptor.getMetaDataElement("response-head")))[1];
}
function getContentTypeFromImgRequest(item)
{
var httpRequest;
try
{
var imageItem = item.QueryInterface(nsIImageLoadingContent);
var imageRequest = imageItem.getRequest(nsIImageLoadingContent.CURRENT_REQUEST);
if (imageRequest)
httpRequest = imageRequest.mimeType;
}
catch (ex)
{
// This never happened. ;)
}
return httpRequest;
}
//******** Other Misc Stuff
// Modified from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
// parse a node to extract the contents of the node
function getValueText(node)
{
var valueText = "";
// form input elements don't generally contain information that is useful to our callers, so return nothing
if (node instanceof nsIInputElement || node instanceof nsISelectElement || node instanceof nsITextareaElement)
return valueText;
// otherwise recurse for each child
var length = node.childNodes.length;
for (var i = 0; i < length; i++)
{
var childNode = node.childNodes[i];
var nodeType = childNode.nodeType;
// text nodes are where the goods are
if (nodeType == Node.TEXT_NODE)
valueText += " " + childNode.nodeValue;
// and elements can have more text inside them
else if (nodeType == Node.ELEMENT_NODE)
{
// images are special, we want to capture the alt text as if the image weren't there
if (childNode instanceof nsIImageElement)
valueText += " " + getAltText(childNode);
else
valueText += " " + getValueText(childNode);
}
}
return stripWS(valueText);
}
// Copied from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
// traverse the tree in search of an img or area element and grab its alt tag
function getAltText(node)
{
var altText = "";
if (node.alt)
return node.alt;
var length = node.childNodes.length;
for (var i = 0; i < length; i++)
if ((altText = getAltText(node.childNodes[i]) != undefined)) // stupid js warning...
return altText;
return "";
}
// Copied from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
// strip leading and trailing whitespace, and replace multiple consecutive whitespace characters with a single space
function stripWS(text)
{
var middleRE = /\s+/g;
var endRE = /(^\s+)|(\s+$)/g;
text = text.replace(middleRE, " ");
return text.replace(endRE, "");
}
function setItemValue(id, value, other)
{
var item = document.getElementById(id);
item.value = value || other || gStrings.notSet;
if (value)
item.removeAttribute("disabled");
else
item.setAttribute("disabled", "true");
}
function formatNumber(number)
{
return (+number).toLocaleString(); // coerce number to a numeric value before calling toLocaleString()
}
function formatDate(datestr, unknown)
{
var date = new Date(datestr);
return (date.valueOf()) ? dateService.FormatDateTime("", dateService.dateFormatLong, dateService.timeFormatSeconds, date.getFullYear(), date.getMonth()+1, date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds()) : unknown;
}
function doCopy()
{
if (!gClipboardHelper)
return;
var elem = document.commandDispatcher.focusedElement;
if (elem && "treeBoxObject" in elem)
{
var view = elem.treeBoxObject.view;
var selection = view.selection;
var text = [], tmp = '';
var min = {}, max = {};
var count = selection.getRangeCount();
for (var i = 0; i < count; i++)
{
selection.getRangeAt(i, min, max);
for (var row = min.value; row <= max.value; row++)
{
view.performActionOnRow("copy", row);
tmp = elem.getAttribute("copybuffer");
if (tmp)
text.push(tmp);
elem.removeAttribute("copybuffer");
}
}
gClipboardHelper.copyString(text.join("\n"));
}
}
function doSelectAll()
{
var elem = document.commandDispatcher.focusedElement;
if (elem && "treeBoxObject" in elem)
elem.treeBoxObject.view.selection.selectAll();
}
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