/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* ***** 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 Communicator client code, released * March 31, 1998. * * 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): * William A. ("PowerGUI") Law * Blake Ross * Gervase Markham * * Alternatively, the contents of this file may be used under the terms of * either of 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 ***** */ /*------------------------------ 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.popupURL = null; this.onTextInput = false; this.onImage = false; this.onLoadedImage = false; this.onLink = false; this.onMailtoLink = false; this.onSaveableLink = false; this.onMetaDataItem = false; this.onMathML = false; this.link = false; this.inFrame = false; this.hasBGImage = false; this.isTextSelected = false; this.inDirList = false; this.shouldDisplay = true; this.autoDownload = false; // 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; const xulNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"; if ( document.popupNode.namespaceURI == xulNS ) { this.shouldDisplay = false; return; } // Get contextual info. this.setTarget( document.popupNode ); this.isTextSelected = this.isTextSelection(); this.initPopupURL(); // 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 () { var showOpen = this.onSaveableLink || ( this.inDirList && this.onLink ); this.showItem( "context-openlink", showOpen ); this.showItem( "context-openlinkintab", showOpen ); this.showItem( "context-sep-open", showOpen ); }, initNavigationItems : function () { // Back determined by canGoBack broadcaster. this.setItemAttrFromNode( "context-back", "disabled", "canGoBack" ); // Forward determined by canGoForward broadcaster. this.setItemAttrFromNode( "context-forward", "disabled", "canGoForward" ); var showNav = !( this.isTextSelected || this.onLink || this.onImage || this.onTextInput ); this.showItem( "context-back", showNav ); this.showItem( "context-forward", showNav ); this.showItem( "context-reload", showNav ); this.showItem( "context-stop", showNav ); this.showItem( "context-sep-stop", showNav ); // XXX: Stop is determined in navigator.js; the canStop broadcaster is broken //this.setItemAttrFromNode( "context-stop", "disabled", "canStop" ); }, initSaveItems : function () { var showSave = !( this.inDirList || this.isTextSelected || this.onTextInput || this.onStandaloneImage || ( this.onLink && this.onImage ) ); if (showSave) goSetMenuValue( "context-savepage", this.autoDownload ? "valueSave" : "valueSaveAs" ); this.showItem( "context-savepage", showSave ); // Save link depends on whether we're in a link. if (this.onSaveableLink) goSetMenuValue( "context-savelink", this.autoDownload ? "valueSave" : "valueSaveAs" ); this.showItem( "context-savelink", this.onSaveableLink ); // Save/Send image depends on whether there is one. showSave = this.onLoadedImage || this.onStandaloneImage; if (showSave) goSetMenuValue( "context-saveimage", this.autoDownload ? "valueSave" : "valueSaveAs" ); this.showItem( "context-saveimage", showSave ); this.showItem( "context-sendimage", showSave ); }, initViewItems : function () { // View source is always OK, unless in directory listing. this.showItem( "context-viewpartialsource-selection", this.isTextSelected && !this.onTextInput ); this.showItem( "context-viewpartialsource-mathml", this.onMathML && !this.isTextSelected ); var showView = !( this.inDirList || this.onImage || this.isTextSelected || this.onLink || this.onTextInput ); this.showItem( "context-viewsource", showView ); this.showItem( "context-viewinfo", showView ); 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. var isWin = navigator.appVersion.indexOf("Windows") != -1; this.showItem( "context-setWallpaper", isWin && (this.onLoadedImage || this.onStandaloneImage)); this.showItem( "context-sep-image", this.onLoadedImage || this.onStandaloneImage); if( isWin && this.onLoadedImage ) // Disable the Set As Wallpaper menu item if we're still trying to load the image this.setItemAttr( "context-setWallpaper", "disabled", (("complete" in this.target) && !this.target.complete) ? "true" : null ); this.showItem( "context-fitimage", this.onStandaloneImage && content.document.imageResizingEnabled ); if ( this.onStandaloneImage && content.document.imageResizingEnabled ) { this.setItemAttr( "context-fitimage", "disabled", content.document.imageIsOverflowing ? null : "true"); this.setItemAttr( "context-fitimage", "checked", content.document.imageIsResized ? "true" : null); } this.showItem( "context-reloadimage", this.onImage); // View Image depends on whether an image was clicked on. this.showItem( "context-viewimage", this.onImage && !this.onStandaloneImage); // View background image depends on whether there is one. this.showItem( "context-viewbgimage", showView && !this.onStandaloneImage); this.showItem( "context-sep-viewbgimage", showView && !this.onStandaloneImage); this.setItemAttr( "context-viewbgimage", "disabled", this.hasBGImage ? null : "true"); }, initMiscItems : function () { // Use "Bookmark This Link" if on a link. this.showItem( "context-bookmarkpage", !( this.isTextSelected || this.onTextInput || this.onStandaloneImage ) ); this.showItem( "context-bookmarklink", this.onLink && !this.onMailtoLink ); this.showItem( "context-searchselect", this.isTextSelected && !this.onTextInput ); this.showItem( "frame", this.inFrame ); this.showItem( "frame-sep", this.inFrame ); if (this.inFrame) goSetMenuValue( "saveframeas", this.autoDownload ? "valueSave" : "valueSaveAs" ); var blocking = true; if (this.popupURL) try { const PM = Components.classes["@mozilla.org/PopupWindowManager;1"] .getService(Components.interfaces.nsIPopupWindowManager); blocking = PM.testPermission(this.popupURL) == Components.interfaces.nsIPopupWindowManager.DENY_POPUP; } catch (e) { } this.showItem( "popupwindow-reject", this.popupURL && !blocking); this.showItem( "popupwindow-allow", this.popupURL && blocking); this.showItem( "context-sep-popup", this.popupURL); // BiDi UI this.showItem( "context-sep-bidi", gShowBiDi); this.showItem( "context-bidi-text-direction-toggle", this.onTextInput && gShowBiDi); this.showItem( "context-bidi-page-direction-toggle", !this.onTextInput && gShowBiDi); }, 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.onTextInput ); this.showItem( "context-redo", this.onTextInput ); this.showItem( "context-sep-undo", this.onTextInput ); this.showItem( "context-cut", this.onTextInput ); this.showItem( "context-copy", this.isTextSelected || this.onTextInput); this.showItem( "context-paste", this.onTextInput ); this.showItem( "context-delete", this.onTextInput ); this.showItem( "context-sep-paste", this.onTextInput ); this.showItem( "context-selectall", true ); this.showItem( "context-sep-selectall", this.isTextSelected && !this.onTextInput ); // In a text area there will be nothing after select all, so we don't want a sep // Otherwise, if there's text selected then there are extra menu items // (search for selection and view selection source), so we do want a sep // 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 ) { // Initialize contextual info. this.onImage = false; this.onLoadedImage = false; this.onStandaloneImage = false; this.onMetaDataItem = false; this.onTextInput = false; this.imageURL = ""; this.onLink = false; this.onMathML = false; this.inFrame = false; this.hasBGImage = false; this.bgImageURL = ""; // Remember the node that was clicked. this.target = node; this.autoDownload = Components.classes["@mozilla.org/preferences-service;1"] .getService(Components.interfaces.nsIPrefBranch) .getBoolPref("browser.download.autoDownload"); // See if the user clicked on an image. if ( this.target.nodeType == Node.ELEMENT_NODE ) { if ( this.target instanceof Components.interfaces.nsIImageLoadingContent && this.target.currentURI ) { this.onImage = true; var request = this.target.getRequest( Components.interfaces.nsIImageLoadingContent.CURRENT_REQUEST ); if (request && (request.imageStatus & request.STATUS_SIZE_AVAILABLE)) this.onLoadedImage = true; this.imageURL = this.target.currentURI.spec; if ( this.target.ownerDocument instanceof ImageDocument ) this.onStandaloneImage = true; } else if ( this.target instanceof HTMLInputElement ) { type = this.target.getAttribute("type"); this.onTextInput = this.isTargetATextBox(this.target); } else if ( this.target instanceof HTMLTextAreaElement ) { this.onTextInput = true; } else if ( this.target instanceof HTMLHtmlElement ) { // pages with multiple s are lame. we'll teach them a lesson. var bodyElt = this.target.ownerDocument.getElementsByTagName("body")[0]; if ( bodyElt ) { var computedURL = this.getComputedURL( bodyElt, "background-image" ); if ( computedURL ) { this.hasBGImage = true; this.bgImageURL = this.makeURLAbsolute( bodyElt.baseURI, computedURL ); } } } 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 on MathML const NS_MathML = "http://www.w3.org/1998/Math/MathML"; if ((this.target.nodeType == Node.TEXT_NODE && this.target.parentNode.namespaceURI == NS_MathML) || (this.target.namespaceURI == NS_MathML)) this.onMathML = true; // 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 const XMLNS = "http://www.w3.org/XML/1998/namespace"; var elem = this.target; while ( elem ) { if ( elem.nodeType == Node.ELEMENT_NODE ) { // Link? if ( !this.onLink && ( (elem instanceof HTMLAnchorElement && elem.href) || elem instanceof HTMLAreaElement || elem instanceof HTMLLinkElement || 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 ( ( elem instanceof HTMLQuoteElement && elem.cite) || ( elem instanceof HTMLTableElement && elem.summary) || ( elem instanceof HTMLModElement && ( elem.cite || elem.dateTime ) ) || ( elem instanceof HTMLElement && ( elem.title || elem.lang ) ) || elem.getAttributeNS(XMLNS, "lang") ) { dump("On metadata item.\n"); this.onMetaDataItem = true; } } // Background image? Don't bother if we've already found a // background image further down the hierarchy. Otherwise, // we look for the computed background-image style. if ( !this.hasBGImage ) { var bgImgUrl = this.getComputedURL( elem, "background-image" ); if ( bgImgUrl ) { this.hasBGImage = true; this.bgImageURL = this.makeURLAbsolute( elem.baseURI, bgImgUrl ); } } } elem = elem.parentNode; } }, initPopupURL: function() { // quick check: if no opener, it can't be a popup if (!window.content.opener) return; try { var show = false; // is it a popup window? const CI = Components.interfaces; var xulwin = window .QueryInterface(CI.nsIInterfaceRequestor) .getInterface(CI.nsIWebNavigation) .QueryInterface(CI.nsIDocShellTreeItem) .treeOwner .QueryInterface(CI.nsIInterfaceRequestor) .getInterface(CI.nsIXULWindow); if (xulwin.contextFlags & CI.nsIWindowCreator2.PARENT_IS_LOADING_OR_RUNNING_TIMEOUT) { // do the pref settings allow site-by-site popup management? const PB = Components.classes["@mozilla.org/preferences-service;1"] .getService(CI.nsIPrefBranch); show = !PB.getBoolPref("dom.disable_open_during_load"); } if (show) { // initialize popupURL const IOS = Components.classes["@mozilla.org/network/io-service;1"] .getService(CI.nsIIOService); this.popupURL = IOS.newURI(window.content.opener.location.href, null, null); // but cancel if it's an unsuitable URL const PM = Components.classes["@mozilla.org/PopupWindowManager;1"] .getService(CI.nsIPopupWindowManager); } } catch(e) { } }, // 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; } }, // Block popup windows rejectPopupWindows: function(andClose) { const PM = Components.classes["@mozilla.org/PopupWindowManager;1"] .getService(Components.interfaces.nsIPopupWindowManager); PM.add(this.popupURL, false); if (andClose) { const OS = Components.classes["@mozilla.org/observer-service;1"] .getService(Components.interfaces.nsIObserverService); OS.notifyObservers(window, "popup-perm-close", this.popupURL.spec); } }, // Unblock popup windows allowPopupWindows: function() { const PM = Components.classes["@mozilla.org/PopupWindowManager;1"] .getService(Components.interfaces.nsIPopupWindowManager); PM.add(this.popupURL, true); }, // Open linked-to URL in a new window. openLink : function () { // Determine linked-to URL. openNewWindowWith( this.linkURL(), true ); }, // Open linked-to URL in a new tab. openLinkInTab : function ( reverseBackgroundPref ) { // Determine linked-to URL. openNewTabWith( this.linkURL(), true, reverseBackgroundPref ); }, // Open frame in a new tab. openFrameInTab : function ( reverseBackgroundPref ) { // Determine linked-to URL. openNewTabWith( this.target.ownerDocument.location.href, true, reverseBackgroundPref ); }, // 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); }, // View Partial Source viewPartialSource : function ( context ) { var focusedWindow = document.commandDispatcher.focusedWindow; if (focusedWindow == window) focusedWindow = content; var docCharset = null; if (focusedWindow) docCharset = "charset=" + focusedWindow.document.characterSet; // "View Selection Source" and others such as "View MathML Source" // are mutually exclusive, with the precedence given to the selection // when there is one var reference = null; if (context == "selection") reference = focusedWindow.getSelection(); else if (context == "mathml") reference = this.target; else throw "not reached"; var docUrl = null; // unused (and play nice for fragments generated via XSLT too) window.openDialog("chrome://navigator/content/viewPartialSource.xul", "_blank", "scrollbars,resizable,chrome,dialog=no", docUrl, docCharset, reference, context); }, // 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); }, toggleImageSize : function () { content.document.toggleImageSize(); }, // Reload image reloadImage : function () { urlSecurityCheck( this.imageURL, document ); if (this.target instanceof Components.interfaces.nsIImageLoadingContent) this.target.forceReload(); }, // Change current window to the URL of the image. viewImage : function () { urlSecurityCheck( this.imageURL, document ); openTopWin( this.imageURL ); }, // Change current window to the URL of the background image. viewBGImage : function () { urlSecurityCheck( this.bgImageURL, document ); openTopWin( this.bgImageURL ); }, setWallpaper: function() { // Confirm since it's annoying if you hit this accidentally. var promptService = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].getService(Components.interfaces.nsIPromptService); var gNavigatorBundle = document.getElementById("bundle_navigator"); var promptTitle = gNavigatorBundle.getString("wallpaperConfirmTitle"); var promptMsg = gNavigatorBundle.getString("wallpaperConfirmMsg"); var promptConfirmButton = gNavigatorBundle.getString("wallpaperConfirmButton"); var buttonPressed = promptService.confirmEx(window, promptTitle, promptMsg, (promptService.BUTTON_TITLE_IS_STRING * promptService.BUTTON_POS_0) + (promptService.BUTTON_TITLE_CANCEL * promptService.BUTTON_POS_1), promptConfirmButton, null, null, null, {value:0}); if (buttonPressed != 0) return; 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, getReferrer(document) ); }, // Save URL of clicked-on image. saveImage : function () { // Note: getReferrer wants our chrome document, not the actual // target document; it handles getting that itself. saveImageURL( this.imageURL, null, "SaveImageTitle", false, getReferrer(document) ); }, // Generate email address. getEmail : function () { // Get 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 addresses; try { // Let's try to unescape it using a character set var characterSet = this.target.ownerDocument.characterSet; const textToSubURI = Components.classes["@mozilla.org/intl/texttosuburi;1"] .getService(Components.interfaces.nsITextToSubURI); addresses = this.linkURL().match(/^mailto:([^?]+)/)[1]; addresses = textToSubURI.unEscapeURIForUI(characterSet, addresses); } catch(ex) { // Do nothing. } return addresses; }, // Copy email to clipboard copyEmail : function () { var clipboard = this.getService( "@mozilla.org/widget/clipboardhelper;1", Components.interfaces.nsIClipboardHelper ); clipboard.copyString(this.getEmail()); }, addBookmark : function() { var docshell = document.getElementById( "content" ).webNavigation; BookmarksUtils.addBookmark( docshell.currentURI.spec, docshell.document.title, docshell.document.characterSet, 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.characterSet, 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(16); 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 " string to show in menu searchSelectText = bundle.formatStringFromName("searchText", [searchSelectText], 1); this.setItemAttr("context-searchselect", "label", searchSelectText); } return result; }, searchSelected : function( charlen ) { var focusedWindow = document.commandDispatcher.focusedWindow; var searchStr = focusedWindow.getSelection(); searchStr = searchStr.toString(); // searching for more than 150 chars makes no sense if (!charlen) charlen = 150; if (charlen < searchStr.length) { // only use the first charlen important chars. see bug 221361 var pattern = new RegExp("^(?:\\s*.){0," + charlen + "}"); pattern.test(searchStr); searchStr = RegExp.lastMatch; } searchStr = searchStr.replace(/^\s+/, ""); searchStr = searchStr.replace(/\s+$/, ""); searchStr = searchStr.replace(/\s+/g, " "); return searchStr; }, // Convert relative URL to absolute, using document's . 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; }, 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 instanceof HTMLInputElement) return (node.type == "text" || node.type == "password") return (node instanceof HTMLTextAreaElement); }, // 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.nsIPrefBranch2); 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) { } } }