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- /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
- /*
- * 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 Communicator client code,
- * released March 31, 1998.
- *
- * The Initial Developer of the Original Code is Netscape Communications
- * Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- * William A. ("PowerGUI") Law <law@netscape.com>
- * Blake Ross <blakeross@telocity.com>
- * Gervase Markham <gerv@gerv.net>
- */
-
- /*------------------------------ nsContextMenu ---------------------------------
- | This JavaScript "class" is used to implement the browser's content-area |
- | context menu. |
- | |
- | For usage, see references to this class in navigator.xul. |
- | |
- | Currently, this code is relatively useless for any other purpose. In the |
- | longer term, this code will be restructured to make it more reusable. |
- ------------------------------------------------------------------------------*/
- function nsContextMenu( xulMenu ) {
- this.target = null;
- this.menu = null;
- this.onTextInput = false;
- this.onImage = false;
- this.onLink = false;
- this.onMailtoLink = false;
- this.onSaveableLink = false;
- this.link = false;
- this.inFrame = false;
- this.hasBGImage = false;
- this.isTextSelected = false;
- this.inDirList = false;
- this.shouldDisplay = true;
-
- // Initialize new menu.
- this.initMenu( xulMenu );
- }
-
- // Prototype for nsContextMenu "class."
- nsContextMenu.prototype = {
- // onDestroy is a no-op at this point.
- onDestroy : function () {
- },
- // Initialize context menu.
- initMenu : function ( popup ) {
- // Save menu.
- this.menu = popup;
-
- // Get contextual info.
- this.setTarget( document.popupNode );
-
- this.isTextSelected = this.isTextSelection();
-
- // Initialize (disable/remove) menu items.
- this.initItems();
- },
- initItems : function () {
- this.initOpenItems();
- this.initNavigationItems();
- this.initViewItems();
- this.initMiscItems();
- this.initSaveItems();
- this.initClipboardItems();
- this.initMetadataItems();
- },
- initOpenItems : function () {
- this.showItem( "context-openlink", this.onSaveableLink || ( this.inDirList && this.onLink ) );
- this.showItem( "context-openlinkintab", this.onSaveableLink || ( this.inDirList && this.onLink ) );
-
- this.showItem( "context-sep-open", this.onSaveableLink || ( this.inDirList && this.onLink ) );
- },
- initNavigationItems : function () {
- // Back determined by canGoBack broadcaster.
- this.setItemAttrFromNode( "context-back", "disabled", "canGoBack" );
-
- // Forward determined by canGoForward broadcaster.
- this.setItemAttrFromNode( "context-forward", "disabled", "canGoForward" );
-
- this.showItem( "context-back", !( this.isTextSelected || this.onLink || this.onImage || this.onTextInput ) );
- this.showItem( "context-forward", !( this.isTextSelected || this.onLink || this.onImage || this.onTextInput ) );
-
- this.showItem( "context-reload", !( this.isTextSelected || this.onLink || this.onImage || this.onTextInput ) );
-
- this.showItem( "context-stop", !( this.isTextSelected || this.onLink || this.onImage || this.onTextInput ) );
- this.showItem( "context-sep-stop", !( this.isTextSelected || this.onLink || this.onImage || this.onTextInput ) );
-
- // XXX: Stop is determined in navigator.js; the canStop broadcaster is broken
- //this.setItemAttrFromNode( "context-stop", "disabled", "canStop" );
- },
- initSaveItems : function () {
- this.showItem( "context-savepage", !( this.inDirList || this.isTextSelected || this.onTextInput ) && !( this.onLink && this.onImage ) );
-
- // Save link depends on whether we're in a link.
- this.showItem( "context-savelink", this.onSaveableLink );
-
- // Save image depends on whether there is one.
- this.showItem( "context-saveimage", this.onImage );
-
- this.showItem( "context-sendimage", this.onImage );
- },
- initViewItems : function () {
- // View source is always OK, unless in directory listing.
- this.showItem( "context-viewsource", !( this.inDirList || this.onImage || this.isTextSelected || this.onLink || this.onTextInput ) );
- this.showItem( "context-viewinfo", !( this.inDirList || this.onImage || this.isTextSelected || this.onLink || this.onTextInput ) );
-
- this.showItem( "context-sep-properties", !( this.inDirList || this.isTextSelected || this.onTextInput ) );
- // Set As Wallpaper depends on whether an image was clicked on, and only works on Windows.
- this.showItem( "context-setWallpaper", this.onImage && navigator.appVersion.indexOf("Windows") != -1);
-
- this.showItem( "context-sep-setWallpaper", this.onImage && navigator.appVersion.indexOf("Windows") != -1);
-
- // View Image depends on whether an image was clicked on.
- this.showItem( "context-viewimage", this.onImage );
-
- // View background image depends on whether there is one.
- this.showItem( "context-viewbgimage", !( this.inDirList || this.onImage || this.isTextSelected || this.onLink || this.onTextInput ) );
- this.showItem( "context-sep-viewbgimage", !( this.inDirList || this.onImage || this.isTextSelected || this.onLink || this.onTextInput ) );
- var menuitem = document.getElementById("context-viewbgimage");
-
- if (this.hasBGImage)
- menuitem.removeAttribute("disabled");
- else
- menuitem.setAttribute("disabled", "true");
- },
- initMiscItems : function () {
- // Use "Bookmark This Link" if on a link.
- this.showItem( "context-bookmarkpage", !( this.isTextSelected || this.onTextInput ) );
- this.showItem( "context-bookmarklink", this.onLink && !this.onMailtoLink );
- this.showItem( "context-searchselect", this.isTextSelected );
- this.showItem( "frame", this.inFrame );
- this.showItem( "frame-sep", this.inFrame );
- },
- initClipboardItems : function () {
-
- // Copy depends on whether there is selected text.
- // Enabling this context menu item is now done through the global
- // command updating system
- // this.setItemAttr( "context-copy", "disabled", !this.isTextSelected() );
-
- goUpdateGlobalEditMenuItems();
-
- this.showItem( "context-undo", this.isTextSelected || this.onTextInput );
- this.showItem( "context-sep-undo", this.isTextSelected || this.onTextInput );
- this.showItem( "context-cut", this.isTextSelected || this.onTextInput );
- this.showItem( "context-copy", this.isTextSelected || this.onTextInput );
- this.showItem( "context-paste", this.isTextSelected || this.onTextInput );
- this.showItem( "context-delete", this.isTextSelected || this.onTextInput );
- this.showItem( "context-sep-paste", this.isTextSelected || this.onTextInput );
- this.showItem( "context-selectall", this.isTextSelected || this.onTextInput );
- this.showItem( "context-sep-selectall", this.isTextSelected );
-
- // XXX dr
- // ------
- // nsDocumentViewer.cpp has code to determine whether we're
- // on a link or an image. we really ought to be using that...
-
- // Copy email link depends on whether we're on an email link.
- this.showItem( "context-copyemail", this.onMailtoLink );
-
- // Copy link location depends on whether we're on a link.
- this.showItem( "context-copylink", this.onLink );
- this.showItem( "context-sep-copylink", this.onLink );
-
- // Copy image location depends on whether we're on an image.
- this.showItem( "context-copyimage", this.onImage );
- this.showItem( "context-sep-copyimage", this.onImage );
- },
- initMetadataItems : function () {
- // Show if user clicked on something which has metadata.
- this.showItem( "context-metadata", this.onMetaDataItem );
- },
- // Set various context menu attributes based on the state of the world.
- setTarget : function ( node ) {
- const xulNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
- if ( node.namespaceURI == xulNS ) {
- this.shouldDisplay = false;
- return;
- }
- // Initialize contextual info.
- this.onImage = false;
- this.onMetaDataItem = false;
- this.onTextInput = false;
- this.imageURL = "";
- this.onLink = false;
- this.inFrame = false;
- this.hasBGImage = false;
- this.bgImageURL = "";
-
- // Remember the node that was clicked.
- this.target = node;
- // See if the user clicked on an image.
- if ( this.target.nodeType == Node.ELEMENT_NODE ) {
- if ( this.target.localName.toUpperCase() == "IMG" ) {
- this.onImage = true;
- this.imageURL = this.target.src;
- // Look for image map.
- var mapName = this.target.getAttribute( "usemap" );
- if ( mapName ) {
- // Find map.
- var map = this.target.ownerDocument.getElementById( mapName.substr(1) );
- if ( map ) {
- // Search child <area>s for a match.
- var areas = map.childNodes;
- //XXX Client side image maps are too hard for now!
- areas.length = 0;
- for ( var i = 0; i < areas.length && !this.onLink; i++ ) {
- var area = areas[i];
- if ( area.nodeType == Node.ELEMENT_NODE
- &&
- area.localName.toUpperCase() == "AREA" ) {
- // Get type (rect/circle/polygon/default).
- var type = area.getAttribute( "type" );
- var coords = this.parseCoords( area );
- switch ( type.toUpperCase() ) {
- case "RECT":
- case "RECTANGLE":
- break;
- case "CIRC":
- case "CIRCLE":
- break;
- case "POLY":
- case "POLYGON":
- break;
- case "DEFAULT":
- // Default matches entire image.
- this.onLink = true;
- this.link = area;
- this.onSaveableLink = this.isLinkSaveable( this.link );
- break;
- }
- }
- }
- }
- }
- } else if ( this.target.localName.toUpperCase() == "OBJECT"
- &&
- // See if object tag is for an image.
- this.objectIsImage( this.target ) ) {
- // This is an image.
- this.onImage = true;
- // URL must be constructed.
- this.imageURL = this.objectImageURL( this.target );
- } else if ( this.target.localName.toUpperCase() == "INPUT") {
- type = this.target.getAttribute("type");
- if(type && type.toUpperCase() == "IMAGE") {
- this.onImage = true;
- // Convert src attribute to absolute URL.
- this.imageURL = this.makeURLAbsolute( this.target.baseURI,
- this.target.src );
- } else /* if (this.target.getAttribute( "type" ).toUpperCase() == "TEXT") */ {
- this.onTextInput = this.isTargetATextBox(this.target);
- }
- } else if ( this.target.localName.toUpperCase() == "TEXTAREA" ) {
- this.onTextInput = true;
- } else if ( this.target.localName.toUpperCase() == "HTML" ) {
- // pages with multiple <body>s are lame. we'll teach them a lesson.
- var bodyElt = this.target.ownerDocument.getElementsByTagName("body")[0];
- if ( bodyElt ) {
- var attr = bodyElt.getAttribute( "background" );
- if ( attr ||
- ( attr = this.getComputedURL( bodyElt, "background-image" ) ) ) {
- this.hasBGImage = true;
- this.bgImageURL = this.makeURLAbsolute( bodyElt.baseURI,
- attr );
- }
- }
- } else if ( "HTTPIndex" in _content &&
- _content.HTTPIndex instanceof Components.interfaces.nsIHTTPIndex ) {
- this.inDirList = true;
- // Bubble outward till we get to an element with URL attribute
- // (which should be the href).
- var root = this.target;
- while ( root && !this.link ) {
- if ( root.tagName == "tree" ) {
- // Hit root of tree; must have clicked in empty space;
- // thus, no link.
- break;
- }
- if ( root.getAttribute( "URL" ) ) {
- // Build pseudo link object so link-related functions work.
- this.onLink = true;
- this.link = { href : root.getAttribute("URL"),
- getAttribute: function (attr) {
- if (attr == "title") {
- return root.firstChild.firstChild.getAttribute("label");
- } else {
- return "";
- }
- }
- };
- // If element is a directory, then you can't save it.
- if ( root.getAttribute( "container" ) == "true" ) {
- this.onSaveableLink = false;
- } else {
- this.onSaveableLink = true;
- }
- } else {
- root = root.parentNode;
- }
- }
- }
- }
-
- // We have meta data on images.
- this.onMetaDataItem = this.onImage;
-
- // See if the user clicked in a frame.
- if ( this.target.ownerDocument != window._content.document ) {
- this.inFrame = true;
- }
-
- // Bubble out, looking for items of interest
- var elem = this.target;
- while ( elem ) {
- if ( elem.nodeType == Node.ELEMENT_NODE ) {
- var localname = elem.localName.toUpperCase();
-
- // Link?
- if ( !this.onLink &&
- ( (localname === "A" && elem.href) ||
- localname === "AREA" ||
- localname === "LINK" ||
- elem.getAttributeNS( "http://www.w3.org/1999/xlink", "type") == "simple" ) ) {
- // Clicked on a link.
- this.onLink = true;
- this.onMetaDataItem = true;
- // Remember corresponding element.
- this.link = elem;
- this.onMailtoLink = this.isLinkType( "mailto:", this.link );
- // Remember if it is saveable.
- this.onSaveableLink = this.isLinkSaveable( this.link );
- }
-
- // Text input?
- if ( !this.onTextInput ) {
- // Clicked on a link.
- this.onTextInput = this.isTargetATextBox(elem);
- }
-
- // Metadata item?
- if ( !this.onMetaDataItem ) {
- // We currently display metadata on anything which fits
- // the below test.
- if ( ( localname === "BLOCKQUOTE" && 'cite' in elem && elem.cite) ||
- ( localname === "Q" && 'cite' in elem && elem.cite) ||
- ( localname === "TABLE" && 'summary' in elem && elem.summary) ||
- ( ( localname === "INS" || localname === "DEL" ) &&
- ( ( 'cite' in elem && elem.cite ) ||
- ( 'dateTime' in elem && elem.dateTime ) ) ) ||
- ( 'title' in elem && elem.title ) ||
- ( 'lang' in elem && elem.lang ) ) {
- dump("On metadata item.\n");
- this.onMetaDataItem = true;
- }
- }
-
- // Background image? We don't bother if we've already found a background
- // image further down the hierarchy. Otherwise, we look for background=
- // attribute on html elements that support that, or, background-image style.
- var bgImgUrl = null;
- if ( !this.hasBGImage &&
- ( ( localname.search( /^(?:TD|TH|TABLE|BODY)$/ ) != -1 &&
- ( bgImgUrl = elem.getAttribute( "background" ) ) ) ||
- ( bgImgUrl = this.getComputedURL( elem, "background-image" ) ) ) ) {
- this.hasBGImage = true;
- this.bgImageURL = this.makeURLAbsolute( elem.baseURI,
- bgImgUrl );
- }
- }
- elem = elem.parentNode;
- }
- },
- // Returns the computed style attribute for the given element.
- getComputedStyle: function( elem, prop ) {
- return elem.ownerDocument.defaultView.getComputedStyle( elem, '' ).getPropertyValue( prop );
- },
- // Returns a "url"-type computed style attribute value, with the url() stripped.
- getComputedURL: function( elem, prop ) {
- var url = elem.ownerDocument.defaultView.getComputedStyle( elem, '' ).getPropertyCSSValue( prop );
- return ( url.primitiveType == CSSPrimitiveValue.CSS_URI ) ? url.getStringValue() : null;
- },
- // Returns true iff clicked on link is saveable.
- isLinkSaveable : function ( link ) {
- // We don't do the Right Thing for news/snews yet, so turn them off
- // until we do.
- return !(this.isLinkType( "mailto:" , link ) ||
- this.isLinkType( "javascript:" , link ) ||
- this.isLinkType( "news:", link ) ||
- this.isLinkType( "snews:", link ) );
- },
- // Returns true iff clicked on link is of type given.
- isLinkType : function ( linktype, link ) {
- try {
- // Test for missing protocol property.
- if ( !link.protocol ) {
- // We must resort to testing the URL string :-(.
- var protocol;
- if ( link.href ) {
- protocol = link.href.substr( 0, linktype.length );
- } else {
- protocol = link.getAttributeNS("http://www.w3.org/1999/xlink","href");
- if ( protocol ) {
- protocol = protocol.substr( 0, linktype.length );
- }
- }
- return protocol.toLowerCase() === linktype;
- } else {
- // Presume all but javascript: urls are saveable.
- return link.protocol.toLowerCase() === linktype;
- }
- } catch (e) {
- // something was wrong with the link,
- // so we won't be able to save it anyway
- return false;
- }
- },
- // Open linked-to URL in a new window.
- openLink : function () {
- // Determine linked-to URL.
- openNewWindowWith( this.linkURL() );
- },
- // Open linked-to URL in a new tab.
- openLinkInTab : function () {
- // Determine linked-to URL.
- openNewTabWith( this.linkURL() );
- },
- // [ghzil]: added this function {
- // Open linked-to URL in a new tab in background
- openLinkInTabBackground : function () {
- // Determine linked-to URL.
- openNewTabWithBackground( this.linkURL() );
- },
- // } [ghzil]
- // Open frame in a new tab.
- openFrameInTab : function () {
- // Determine linked-to URL.
- openNewTabWith( this.target.ownerDocument.location.href );
- },
- // Reload clicked-in frame.
- reloadFrame : function () {
- this.target.ownerDocument.location.reload();
- },
- // Open clicked-in frame in its own window.
- openFrame : function () {
- openNewWindowWith( this.target.ownerDocument.location.href );
- },
- // Open clicked-in frame in the same window
- showOnlyThisFrame : function () {
- window.loadURI(this.target.ownerDocument.location.href);
- },
- // Open new "view source" window with the frame's URL.
- viewFrameSource : function () {
- BrowserViewSourceOfDocument(this.target.ownerDocument);
- },
- viewInfo : function () {
- BrowserPageInfo();
- },
- viewFrameInfo : function () {
- BrowserPageInfo(this.target.ownerDocument);
- },
- // Change current window to the URL of the image.
- viewImage : function () {
- openTopWin( this.imageURL );
- },
- // Change current window to the URL of the background image.
- viewBGImage : function () {
- openTopWin( this.bgImageURL );
- },
- setWallpaper: function() {
- var winhooks = Components.classes[ "@mozilla.org/winhooks;1" ].
- getService(Components.interfaces.nsIWindowsHooks);
-
- winhooks.setImageAsWallpaper(this.target, false);
- },
- // Save URL of clicked-on frame.
- saveFrame : function () {
- saveDocument( this.target.ownerDocument );
- },
- // Save URL of clicked-on link.
- saveLink : function () {
- saveURL( this.linkURL(), this.linkText(), null, true );
- },
- // Save URL of clicked-on image.
- saveImage : function () {
- saveURL( this.imageURL, null, "SaveImageTitle", false );
- },
- // Generate email address and put it on clipboard.
- copyEmail : function () {
- // Copy the comma-separated list of email addresses only.
- // There are other ways of embedding email addresses in a mailto:
- // link, but such complex parsing is beyond us.
- var url = this.linkURL();
- var qmark = url.indexOf( "?" );
- var addresses;
-
- if ( qmark > 7 ) { // 7 == length of "mailto:"
- addresses = url.substring( 7, qmark );
- } else {
- addresses = url.substr( 7 );
- }
-
- var clipboard = this.getService( "@mozilla.org/widget/clipboardhelper;1",
- Components.interfaces.nsIClipboardHelper );
- clipboard.copyString(addresses);
- },
- addBookmark : function() {
- var docshell = document.getElementById( "content" ).webNavigation;
- BookmarksUtils.addBookmark( docshell.currentURI.spec,
- docshell.document.title,
- docshell.document.charset,
- false );
- },
- addBookmarkForFrame : function() {
- var doc = this.target.ownerDocument;
- var uri = doc.location.href;
- var title = doc.title;
- if ( !title )
- title = uri;
- BookmarksUtils.addBookmark( uri,
- title,
- doc.charset,
- false );
- },
- // Open Metadata window for node
- showMetadata : function () {
- window.openDialog( "chrome://navigator/content/metadata.xul",
- "_blank",
- "scrollbars,resizable,chrome,dialog=no",
- this.target);
- },
-
- ///////////////
- // Utilities //
- ///////////////
-
- // Create instance of component given contractId and iid (as string).
- createInstance : function ( contractId, iidName ) {
- var iid = Components.interfaces[ iidName ];
- return Components.classes[ contractId ].createInstance( iid );
- },
- // Get service given contractId and iid (as string).
- getService : function ( contractId, iidName ) {
- var iid = Components.interfaces[ iidName ];
- return Components.classes[ contractId ].getService( iid );
- },
- // Show/hide one item (specified via name or the item element itself).
- showItem : function ( itemOrId, show ) {
- var item = itemOrId.constructor == String ? document.getElementById(itemOrId) : itemOrId;
- if (item)
- item.hidden = !show;
- },
- // Set given attribute of specified context-menu item. If the
- // value is null, then it removes the attribute (which works
- // nicely for the disabled attribute).
- setItemAttr : function ( id, attr, val ) {
- var elem = document.getElementById( id );
- if ( elem ) {
- if ( val == null ) {
- // null indicates attr should be removed.
- elem.removeAttribute( attr );
- } else {
- // Set attr=val.
- elem.setAttribute( attr, val );
- }
- }
- },
- // Set context menu attribute according to like attribute of another node
- // (such as a broadcaster).
- setItemAttrFromNode : function ( item_id, attr, other_id ) {
- var elem = document.getElementById( other_id );
- if ( elem && elem.getAttribute( attr ) == "true" ) {
- this.setItemAttr( item_id, attr, "true" );
- } else {
- this.setItemAttr( item_id, attr, null );
- }
- },
- // Temporary workaround for DOM api not yet implemented by XUL nodes.
- cloneNode : function ( item ) {
- // Create another element like the one we're cloning.
- var node = document.createElement( item.tagName );
-
- // Copy attributes from argument item to the new one.
- var attrs = item.attributes;
- for ( var i = 0; i < attrs.length; i++ ) {
- var attr = attrs.item( i );
- node.setAttribute( attr.nodeName, attr.nodeValue );
- }
-
- // Voila!
- return node;
- },
- // Generate fully-qualified URL for clicked-on link.
- linkURL : function () {
- if (this.link.href) {
- return this.link.href;
- }
- var href = this.link.getAttributeNS("http://www.w3.org/1999/xlink","href");
- if (!href || !href.match(/\S/)) {
- throw "Empty href"; // Without this we try to save as the current doc, for example, HTML case also throws if empty
- }
- href = this.makeURLAbsolute(this.link.baseURI,href);
- return href;
- },
- // Get text of link.
- linkText : function () {
- var text = gatherTextUnder( this.link );
- if (!text || !text.match(/\S/)) {
- text = this.link.getAttribute("title");
- if (!text || !text.match(/\S/)) {
- text = this.link.getAttribute("alt");
- if (!text || !text.match(/\S/)) {
- if (this.link.href) {
- text = this.link.href;
- } else {
- text = getAttributeNS("http://www.w3.org/1999/xlink", "href");
- if (text && text.match(/\S/)) {
- text = this.makeURLAbsolute(this.link.baseURI, text);
- }
- }
- }
- }
- }
-
- return text;
- },
-
- //Get selected object and convert it to a string to get
- //selected text. Only use the first 15 chars.
- isTextSelection : function() {
- var result = false;
- var selection = this.searchSelected();
- var searchSelect = document.getElementById('context-searchselect');
-
- var bundle = srGetStrBundle("chrome://communicator/locale/contentAreaCommands.properties");
-
- var searchSelectText;
- if (selection != "") {
- searchSelectText = selection.toString();
- if (searchSelectText.length > 15)
- searchSelectText = searchSelectText.substr(0,15) + "...";
- result = true;
-
- // format "Search for <selection>" string to show in menu
- searchSelectText = bundle.formatStringFromName("searchText",
- [searchSelectText], 1);
- searchSelect.setAttribute("label", searchSelectText);
- }
- return result;
- },
-
- searchSelected : function() {
- var focusedWindow = document.commandDispatcher.focusedWindow;
- var searchStr = focusedWindow.getSelection();
- searchStr = searchStr.toString();
- searchStr = searchStr.replace( /^\s+/, "" );
- searchStr = searchStr.replace(/(\n|\r|\t)+/g, " ");
- searchStr = searchStr.replace(/\s+$/,"");
- return searchStr;
- },
-
- // Determine if target <object> is an image.
- objectIsImage : function ( objElem ) {
- var result = false;
- // Get type and data attributes.
- var type = objElem.getAttribute( "type" );
- var data = objElem.getAttribute( "data" );
- // Presume any mime type of the form "image/..." is an image.
- // There must be a data= attribute with an URL, also.
- if ( type.substring( 0, 6 ) == "image/" && data && data != "" ) {
- result = true;
- }
- return result;
- },
- // Extract image URL from <object> tag.
- objectImageURL : function ( objElem ) {
- // Extract url from data= attribute.
- var data = objElem.getAttribute( "data" );
- // Make it absolute.
- return this.makeURLAbsolute( objElem.baseURI, data );
- },
- // Convert relative URL to absolute, using document's <base>.
- makeURLAbsolute : function ( base, url ) {
- // Construct nsIURL.
- var ioService = Components.classes["@mozilla.org/network/io-service;1"]
- .getService(Components.interfaces.nsIIOService);
- var baseURI = ioService.newURI(base, null, null);
-
- return ioService.newURI(baseURI.resolve(url), null, null).spec;
- },
- // Parse coords= attribute and return array.
- parseCoords : function ( area ) {
- return [];
- },
- toString : function () {
- return "contextMenu.target = " + this.target + "\n" +
- "contextMenu.onImage = " + this.onImage + "\n" +
- "contextMenu.onLink = " + this.onLink + "\n" +
- "contextMenu.link = " + this.link + "\n" +
- "contextMenu.inFrame = " + this.inFrame + "\n" +
- "contextMenu.hasBGImage = " + this.hasBGImage + "\n";
- },
- isTargetATextBox : function ( node )
- {
- if (node.nodeType != Node.ELEMENT_NODE)
- return false;
-
- if (node.localName.toUpperCase() == "INPUT") {
- var attrib = "";
- var type = node.getAttribute("type");
-
- if (type)
- attrib = type.toUpperCase();
-
- return( (attrib != "IMAGE") &&
- (attrib != "CHECKBOX") &&
- (attrib != "RADIO") &&
- (attrib != "SUBMIT") &&
- (attrib != "RESET") &&
- (attrib != "FILE") &&
- (attrib != "HIDDEN") &&
- (attrib != "RESET") &&
- (attrib != "BUTTON") );
- } else {
- return(node.localName.toUpperCase() == "TEXTAREA");
- }
- },
-
- // Determines whether or not the separator with the specified ID should be
- // shown or not by determining if there are any non-hidden items between it
- // and the previous separator.
- shouldShowSeparator : function ( aSeparatorID )
- {
- var separator = document.getElementById(aSeparatorID);
- if (separator) {
- var sibling = separator.previousSibling;
- while (sibling && sibling.localName != "menuseparator") {
- if (sibling.getAttribute("hidden") != "true")
- return true;
- sibling = sibling.previousSibling;
- }
- }
- return false;
- }
- };
-
- /*************************************************************************
- *
- * nsDefaultEngine : nsIObserver
- *
- *************************************************************************/
- function nsDefaultEngine()
- {
- try
- {
- var pb = Components.classes["@mozilla.org/preferences-service;1"].
- getService(Components.interfaces.nsIPrefBranch);
- var pbi = pb.QueryInterface(
- Components.interfaces.nsIPrefBranchInternal);
- pbi.addObserver(this.domain, this, false);
-
- // reuse code by explicitly invoking initial |observe| call
- // to initialize the |icon| and |name| member variables
- this.observe(pb, "", this.domain);
- }
- catch (ex)
- {
- }
- }
-
- nsDefaultEngine.prototype =
- {
- name: "",
- icon: "",
- domain: "browser.search.defaultengine",
-
- // nsIObserver implementation
- observe: function(aPrefBranch, aTopic, aPrefName)
- {
- try
- {
- var rdf = Components.
- classes["@mozilla.org/rdf/rdf-service;1"].
- getService(Components.interfaces.nsIRDFService);
- var ds = rdf.GetDataSource("rdf:internetsearch");
- var defaultEngine = aPrefBranch.getCharPref(aPrefName);
- var res = rdf.GetResource(defaultEngine);
-
- // get engine ``pretty'' name
- const kNC_Name = rdf.GetResource(
- "http://home.netscape.com/NC-rdf#Name");
- var engineName = ds.GetTarget(res, kNC_Name, true);
- if (engineName)
- {
- this.name = engineName.QueryInterface(
- Components.interfaces.nsIRDFLiteral).Value;
- }
-
- // get URL to engine vendor icon
- const kNC_Icon = rdf.GetResource(
- "http://home.netscape.com/NC-rdf#Icon");
- var iconURL = ds.GetTarget(res, kNC_Icon, true);
- if (iconURL)
- {
- this.icon = iconURL.QueryInterface(
- Components.interfaces.nsIRDFLiteral).Value;
- }
- }
- catch (ex)
- {
- }
- }
- }
-