zotero/chrome/content/zotero/browser.js
Simon Kornblith 64ff0e8b4e Fix #774
2015-06-29 18:03:09 -04:00

1025 lines
No EOL
32 KiB
JavaScript

/*
***** BEGIN LICENSE BLOCK *****
Copyright © 2009 Center for History and New Media
George Mason University, Fairfax, Virginia, USA
http://zotero.org
This file is part of Zotero.
Zotero is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Zotero is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with Zotero. If not, see <http://www.gnu.org/licenses/>.
Based on code from Greasemonkey and PiggyBank
***** END LICENSE BLOCK *****
*/
//
// Zotero Ingester Browser Functions
//
//////////////////////////////////////////////////////////////////////////////
//
// Zotero_Browser
//
//////////////////////////////////////////////////////////////////////////////
// Class to interface with the browser when ingesting data
var Zotero_Browser = new function() {
this.init = init;
this.annotatePage = annotatePage;
this.toggleMode = toggleMode;
this.toggleCollapsed = toggleCollapsed;
this.chromeLoad = chromeLoad;
this.contentLoad = contentLoad;
this.itemUpdated = itemUpdated;
this.contentHide = contentHide;
this.tabClose = tabClose;
this.resize = resize;
this.updateStatus = updateStatus;
this.tabbrowser = null;
this.appcontent = null;
this.isScraping = false;
var _browserData = new Object();
var _attachmentsMap = new WeakMap();
var _blacklist = [
"googlesyndication.com",
"doubleclick.net",
"questionmarket.com",
"atdmt.com",
"aggregateknowledge.com",
"ad.yieldmanager.com"
];
var _locationBlacklist = [
"zotero://debug/"
];
var tools = {
'zotero-annotate-tb-add':{
cursor:"pointer",
event:"click",
callback:function(e) { _add("annotation", e) }
},
'zotero-annotate-tb-highlight':{
cursor:"text",
event:"mouseup",
callback:function(e) { _add("highlight", e) }
},
'zotero-annotate-tb-unhighlight':{
cursor:"text",
event:"mouseup",
callback:function(e) { _add("unhighlight", e) }
}
};
//////////////////////////////////////////////////////////////////////////////
//
// Public Zotero_Browser methods
//
//////////////////////////////////////////////////////////////////////////////
/**
* Initialize some variables and prepare event listeners for when chrome is done loading
*/
function init() {
if (!window.hasOwnProperty("gBrowser")) {
return;
}
var zoteroInitDone;
if (!Zotero || !Zotero.initialized) {
// Zotero either failed to load or is reloading in Connector mode
// In case of the latter, listen for the 'zotero-loaded' event (once) and retry
var zoteroInitDone_deferred = Q.defer();
var obs = Components.classes["@mozilla.org/observer-service;1"]
.getService(Components.interfaces.nsIObserverService);
var observer = {
"observe":function() {
obs.removeObserver(observer, 'zotero-loaded')
zoteroInitDone_deferred.resolve();
}
};
obs.addObserver(observer, 'zotero-loaded', false);
zoteroInitDone = zoteroInitDone_deferred.promise;
} else {
zoteroInitDone = Q();
}
var chromeLoaded = Q.defer();
window.addEventListener("load", function(e) { chromeLoaded.resolve() }, false);
// Wait for Zotero to init and chrome to load before proceeding
Q.all([
zoteroInitDone.then(function() {
ZoteroPane_Local.addReloadListener(reload);
reload();
}),
chromeLoaded.promise
])
.then(function() {
Zotero_Browser.chromeLoad()
})
.done();
}
/**
* Called when Zotero is reloaded
*/
function reload() {
// Handles the display of a div showing progress in scraping
Zotero_Browser.progress = new Zotero.ProgressWindow();
}
/**
* Scrapes a page (called when the capture icon is clicked
* @return void
*/
this.scrapeThisPage = function (translator, event) {
// Perform translation
var tab = _getTabObject(Zotero_Browser.tabbrowser.selectedBrowser);
if(tab.page.translators && tab.page.translators.length) {
tab.page.translate.setTranslator(translator || tab.page.translators[0]);
Zotero_Browser.performTranslation(tab.page.translate);
}
else {
// Keep in sync with cmd_zotero_newItemFromCurrentPage
//
// DEBUG: Possible to just trigger command directly with event? Assigning it to the
// command property of the icon doesn't seem to work, and neither does goDoCommand()
// from chrome://global/content/globalOverlay.js. Getting the command by id and
// running doCommand() works but doesn't pass the event.
ZoteroPane.addItemFromPage(
'temporaryPDFHack',
(event && event.shiftKey) ? !Zotero.Prefs.get('automaticSnapshots') : null
);
}
}
/*
* flags a page for annotation
*/
function annotatePage(id, browser) {
if (browser) {
var tab = _getTabObject(browser);
}
else {
var tab = _getTabObject(this.tabbrowser.selectedBrowser);
}
}
/*
* toggles a tool on/off
*/
function toggleMode(toggleTool, ignoreOtherTools) {
// make sure other tools are turned off
if(!ignoreOtherTools) {
for(var tool in tools) {
if(tool != toggleTool && document.getElementById(tool).getAttribute("tool-active")) {
toggleMode(tool, true);
}
}
}
// make sure annotation action is toggled
var tab = _getTabObject(Zotero_Browser.tabbrowser.selectedBrowser);
if(tab.page && tab.page.annotations && tab.page.annotations.clearAction) tab.page.annotations.clearAction();
if(!toggleTool) return;
var body = Zotero_Browser.tabbrowser.selectedBrowser.contentDocument.getElementsByTagName("body")[0];
var addElement = document.getElementById(toggleTool);
if(addElement.getAttribute("tool-active")) {
// turn off
body.style.cursor = "auto";
addElement.removeAttribute("tool-active");
Zotero_Browser.tabbrowser.selectedBrowser.removeEventListener(tools[toggleTool].event, tools[toggleTool].callback, true);
} else {
body.style.cursor = tools[toggleTool].cursor;
addElement.setAttribute("tool-active", "true");
Zotero_Browser.tabbrowser.selectedBrowser.addEventListener(tools[toggleTool].event, tools[toggleTool].callback, true);
}
}
/*
* expands all annotations
*/
function toggleCollapsed() {
var tab = _getTabObject(Zotero_Browser.tabbrowser.selectedBrowser);
tab.page.annotations.toggleCollapsed();
}
/*
* When chrome loads, register our event handlers with the appropriate interfaces
*/
function chromeLoad() {
this.tabbrowser = gBrowser;
this.appcontent = document.getElementById("appcontent");
// this gives us onLocationChange, for updating when tabs are switched/created
gBrowser.tabContainer.addEventListener("TabClose",
function(e) {
//Zotero.debug("TabClose");
Zotero_Browser.tabClose(e);
}, false);
gBrowser.tabContainer.addEventListener("TabSelect",
function(e) {
//Zotero.debug("TabSelect");
Zotero_Browser.updateStatus();
}, false);
// this is for pageshow, for updating the status of the book icon
this.appcontent.addEventListener("pageshow", contentLoad, true);
// this is for turning off the book icon when a user navigates away from a page
this.appcontent.addEventListener("pagehide",
function(e) {
//Zotero.debug("pagehide");
Zotero_Browser.contentHide(e);
}, true);
this.tabbrowser.addEventListener("resize",
function(e) { Zotero_Browser.resize(e) }, false);
// Resize on text zoom changes
// Fx2
var reduce = document.getElementById('cmd_textZoomReduce');
if (reduce) {
var enlarge = document.getElementById('cmd_textZoomEnlarge');
var reset = document.getElementById('cmd_textZoomReset');
}
// Fx3
else {
var reduce = document.getElementById('cmd_fullZoomReduce');
var enlarge = document.getElementById('cmd_fullZoomEnlarge');
var reset = document.getElementById('cmd_fullZoomReset');
}
if(reduce) reduce.addEventListener("command",
function(e) { Zotero_Browser.resize(e) }, false);
if(enlarge) enlarge.addEventListener("command",
function(e) { Zotero_Browser.resize(e) }, false);
if(reset) reset.addEventListener("command",
function(e) { Zotero_Browser.resize(e) }, false);
}
/*
* An event handler called when a new document is loaded. Creates a new document
* object, and updates the status of the capture icon
*/
function contentLoad(event) {
var doc = event.originalTarget;
var isHTML = doc instanceof HTMLDocument;
var rootDoc = (doc instanceof HTMLDocument ? doc.defaultView.top.document : doc);
var browser = Zotero_Browser.tabbrowser.getBrowserForDocument(rootDoc);
if(!browser) return;
if(isHTML) {
// ignore blacklisted domains
try {
if(doc.domain) {
for (let i = 0; i < _blacklist.length; i++) {
let blacklistedURL = _blacklist[i];
if(doc.domain.substr(doc.domain.length-blacklistedURL.length) == blacklistedURL) {
Zotero.debug("Ignoring blacklisted URL "+doc.location);
return;
}
}
}
}
catch (e) {}
}
try {
if (_locationBlacklist.indexOf(doc.location.href) != -1) {
return;
}
// Ignore TinyMCE popups
if (!doc.location.host && doc.location.href.indexOf("tinymce/") != -1) {
return;
}
}
catch (e) {}
// get data object
var tab = _getTabObject(browser);
if(isHTML && !Zotero.isConnector) {
var annotationID = Zotero.Annotate.getAnnotationIDFromURL(browser.currentURI.spec);
if(annotationID) {
if(Zotero.Annotate.isAnnotated(annotationID)) {
//window.alert(Zotero.getString("annotations.oneWindowWarning"));
} else if(!tab.page.annotations) {
// enable annotation
tab.page.annotations = new Zotero.Annotations(Zotero_Browser, browser, annotationID);
var saveAnnotations = function() {
tab.page.annotations.save();
tab.page.annotations = undefined;
};
browser.contentWindow.addEventListener('beforeunload', saveAnnotations, false);
browser.contentWindow.addEventListener('close', saveAnnotations, false);
tab.page.annotations.load();
}
}
}
// detect translators
tab.detectTranslators(rootDoc, doc);
// register metadata updated event
if(isHTML) {
var contentWin = doc.defaultView;
if(!contentWin.haveZoteroEventListener) {
contentWin.addEventListener("ZoteroItemUpdated", function(event) { itemUpdated(event.originalTarget) }, false);
contentWin.haveZoteroEventListener = true;
}
}
}
/*
* called to unregister Zotero icon, etc.
*/
function contentHide(event) {
var doc = event.originalTarget;
if(!(doc instanceof HTMLDocument)) return;
var rootDoc = (doc instanceof HTMLDocument ? doc.defaultView.top.document : doc);
var browser = Zotero_Browser.tabbrowser.getBrowserForDocument(rootDoc);
if(!browser) return;
var tab = _getTabObject(browser);
if(!tab) return;
if(doc == tab.page.document || doc == rootDoc) {
// clear translator only if the page on which the pagehide event was called is
// either the page to which the translator corresponded, or the root document
// (the second check is probably paranoid, but won't hurt)
tab.clear();
}
// update status
if(Zotero_Browser.tabbrowser.selectedBrowser == browser) {
updateStatus();
}
}
/**
* Called when item should be updated due to a DOM event
*/
function itemUpdated(doc) {
try {
var rootDoc = (doc instanceof HTMLDocument ? doc.defaultView.top.document : doc);
var browser = Zotero_Browser.tabbrowser.getBrowserForDocument(rootDoc);
var tab = _getTabObject(browser);
if(doc == tab.page.document || doc == rootDoc) tab.clear();
tab.detectTranslators(rootDoc, doc);
} catch(e) {
Zotero.debug(e);
}
}
/*
* called when a tab is closed
*/
function tabClose(event) {
// Save annotations when closing a tab, since the browser is already
// gone from tabbrowser by the time contentHide() gets called
var tab = _getTabObject(event.target);
if(tab.page && tab.page.annotations) tab.page.annotations.save();
tab.clear();
// To execute if document object does not exist
toggleMode();
}
/*
* called when the window is resized
*/
function resize(event) {
var tab = _getTabObject(this.tabbrowser.selectedBrowser);
if(!tab.page.annotations) return;
tab.page.annotations.refresh();
}
/*
* Updates the status of the capture icon to reflect the scrapability or lack
* thereof of the current page
*/
function updateStatus() {
if (!Zotero_Browser.tabbrowser) return;
var tab = _getTabObject(Zotero_Browser.tabbrowser.selectedBrowser);
Components.utils.import("resource:///modules/CustomizableUI.jsm");
var buttons = getSaveButtons();
if (buttons.length) {
let state = tab.getCaptureState();
let tooltiptext = tab.getCaptureTooltip();
for (let { button, placement } of buttons) {
let inToolbar = placement.area == CustomizableUI.AREA_NAVBAR;
button.image = tab.getCaptureIcon(Zotero.hiDPI || !inToolbar);
button.tooltipText = tooltiptext;
if (state == tab.CAPTURE_STATE_TRANSLATABLE) {
button.classList.add('translate');
}
else {
button.classList.remove('translate');
}
button.removeAttribute('disabled');
}
}
// set annotation bar status
if(tab.page.annotations && tab.page.annotations.annotations.length) {
document.getElementById('zotero-annotate-tb').hidden = false;
toggleMode();
} else {
document.getElementById('zotero-annotate-tb').hidden = true;
}
}
function getSaveButtons() {
Components.utils.import("resource:///modules/CustomizableUI.jsm");
var buttons = [];
var placement = CustomizableUI.getPlacementOfWidget("zotero-toolbar-buttons");
if (placement) {
let button = document.getElementById("zotero-toolbar-save-button");
if (button) {
buttons.push({
button: button,
placement: placement
});
}
}
placement = CustomizableUI.getPlacementOfWidget("zotero-toolbar-save-button-single");
if (placement) {
let button = document.getElementById("zotero-toolbar-save-button-single");
if (button) {
buttons.push({
button: button,
placement: placement
});
}
}
return buttons;
}
/**
* Called when status bar icon is right-clicked
*/
this.onStatusPopupShowing = function(e) {
var popup = e.target;
while(popup.hasChildNodes()) popup.removeChild(popup.lastChild);
var tab = _getTabObject(this.tabbrowser.selectedBrowser);
if (tab.getCaptureState() == tab.CAPTURE_STATE_TRANSLATABLE) {
let translators = tab.page.translators;
for (var i=0, n = translators.length; i < n; i++) {
let translator = translators[i];
let menuitem = document.createElement("menuitem");
menuitem.setAttribute("label",
Zotero.getString("ingester.saveToZoteroUsing", translator.label));
menuitem.setAttribute("image", (translator.itemType === "multiple"
? "chrome://zotero/skin/treesource-collection.png"
: Zotero.ItemTypes.getImageSrc(translator.itemType)));
menuitem.setAttribute("class", "menuitem-iconic");
menuitem.addEventListener("command", function(e) {
Zotero_Browser.scrapeThisPage(translator, e);
e.stopPropagation();
}, false);
popup.appendChild(menuitem);
}
popup.appendChild(document.createElement("menuseparator"));
let menuitem = document.createElement("menuitem");
menuitem.setAttribute("label", Zotero.getString("locate.libraryLookup.label"));
menuitem.setAttribute("tooltiptext", Zotero.getString("locate.libraryLookup.tooltip"));
menuitem.setAttribute("image", "chrome://zotero/skin/locate-library-lookup.png");
menuitem.setAttribute("class", "menuitem-iconic");
menuitem.addEventListener("command", _constructLookupFunction(tab, function(event, obj) {
var urls = [];
for (let i = 0; i < obj.newItems.length; i++) {
var url = Zotero.OpenURL.resolve(obj.newItems[i]);
if(url) urls.push(url);
}
ZoteroPane.loadURI(urls, event);
}), false);
popup.appendChild(menuitem);
var locateEngines = Zotero.LocateManager.getVisibleEngines();
Zotero_LocateMenu.addLocateEngines(popup, locateEngines,
_constructLookupFunction(tab, function(e, obj) {
Zotero_LocateMenu.locateItem(e, obj.newItems);
}), true);
}
else {
let webPageIcon = tab.getCaptureIcon(Zotero.hiDPI);
let automaticSnapshots = Zotero.Prefs.get('automaticSnapshots');
let snapshotEvent = {
shiftKey: !automaticSnapshots
};
let noSnapshotEvent = {
shiftKey: automaticSnapshots
};
let menuitem = document.createElement("menuitem");
menuitem.setAttribute("label", "Save to Zotero as Web Page (with snapshot)");
menuitem.setAttribute("image", webPageIcon);
menuitem.setAttribute("class", "menuitem-iconic");
menuitem.addEventListener("command", function (event) {
Zotero_Browser.scrapeThisPage(null, snapshotEvent);
event.stopPropagation();
});
popup.appendChild(menuitem);
menuitem = document.createElement("menuitem");
menuitem.setAttribute("label", "Save to Zotero as Web Page (without snapshot)");
menuitem.setAttribute("image", webPageIcon);
menuitem.setAttribute("class", "menuitem-iconic");
menuitem.addEventListener("command", function (event) {
Zotero_Browser.scrapeThisPage(null, noSnapshotEvent);
event.stopPropagation();
});
popup.appendChild(menuitem);
}
}
/**
* Translates using the specified translation instance. setTranslator() must already
* have been called
* @param {Zotero.Translate} translate
*/
this.performTranslation = function(translate, libraryID, collection) {
if (Zotero.locked) {
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.scrapeError"));
var desc = Zotero.localeJoin([
Zotero.getString('general.operationInProgress'),
Zotero.getString('general.operationInProgress.waitUntilFinishedAndTryAgain')
]);
Zotero_Browser.progress.addDescription(desc);
Zotero_Browser.progress.show();
Zotero_Browser.progress.startCloseTimer(8000);
return;
}
if (!Zotero.stateCheck()) {
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.scrapeError"));
var desc = Zotero.getString("ingester.scrapeErrorDescription.previousError")
+ ' ' + Zotero.getString("general.restartFirefoxAndTryAgain", Zotero.appName);
Zotero_Browser.progress.addDescription(desc);
Zotero_Browser.progress.show();
Zotero_Browser.progress.startCloseTimer(8000);
return;
}
Zotero_Browser.progress.show();
Zotero_Browser.isScraping = true;
// Get libraryID and collectionID
if(libraryID === undefined && ZoteroPane && !Zotero.isConnector) {
try {
if (!ZoteroPane.collectionsView.editable) {
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.scrapeError"));
var desc = Zotero.getString('save.error.cannotMakeChangesToCollection');
Zotero_Browser.progress.addDescription(desc);
Zotero_Browser.progress.show();
Zotero_Browser.progress.startCloseTimer(8000);
return;
}
libraryID = ZoteroPane.getSelectedLibraryID();
collection = ZoteroPane.getSelectedCollection();
} catch(e) {
Zotero.debug(e, 1);
}
}
if(Zotero.isConnector) {
Zotero.Connector.callMethod("getSelectedCollection", {}, function(response, status) {
if(status !== 200) {
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.scraping"));
} else {
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.scrapingTo"),
"chrome://zotero/skin/treesource-"+(response.id ? "collection" : "library")+".png",
response.name+"\u2026");
}
});
} else {
var name;
if(collection) {
name = collection.name;
} else if(libraryID) {
name = Zotero.Libraries.getName(libraryID);
} else {
name = Zotero.getString("pane.collections.library");
}
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.scrapingTo"),
"chrome://zotero/skin/treesource-"+(collection ? "collection" : "library")+".png",
name+"\u2026");
}
translate.clearHandlers("done");
translate.clearHandlers("itemDone");
translate.clearHandlers("attachmentProgress");
translate.setHandler("done", function(obj, returnValue) {
if(!returnValue) {
Zotero_Browser.progress.show();
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.scrapeError"));
// Include link to translator troubleshooting page
var url = "https://www.zotero.org/support/troubleshooting_translator_issues";
var linkText = '<a href="' + url + '" tooltiptext="' + url + '">'
+ Zotero.getString('ingester.scrapeErrorDescription.linkText') + '</a>';
Zotero_Browser.progress.addDescription(Zotero.getString("ingester.scrapeErrorDescription", linkText));
Zotero_Browser.progress.startCloseTimer(8000);
} else {
Zotero_Browser.progress.startCloseTimer();
}
Zotero_Browser.isScraping = false;
});
translate.setHandler("itemDone", function(obj, dbItem, item) {
Zotero_Browser.progress.show();
var itemProgress = new Zotero_Browser.progress.ItemProgress(Zotero.ItemTypes.getImageSrc(item.itemType),
item.title);
itemProgress.setProgress(100);
for(var i=0; i<item.attachments.length; i++) {
var attachment = item.attachments[i];
_attachmentsMap.set(attachment,
new Zotero_Browser.progress.ItemProgress(
Zotero.Utilities.determineAttachmentIcon(attachment),
attachment.title, itemProgress));
}
// add item to collection, if one was specified
if(collection) {
collection.addItem(dbItem.id);
}
});
translate.setHandler("attachmentProgress", function(obj, attachment, progress, error) {
var itemProgress = _attachmentsMap.get(attachment);
if(progress === false) {
itemProgress.setError();
} else {
itemProgress.setProgress(progress);
if(progress === 100) {
itemProgress.setIcon(Zotero.Utilities.determineAttachmentIcon(attachment));
}
}
});
translate.translate(libraryID);
}
//////////////////////////////////////////////////////////////////////////////
//
// Private Zotero_Browser methods
//
//////////////////////////////////////////////////////////////////////////////
function _constructLookupFunction(tab, success) {
return function(e) {
tab.page.translate.setTranslator(tab.page.translators[0]);
tab.page.translate.clearHandlers("done");
tab.page.translate.clearHandlers("itemDone");
tab.page.translate.setHandler("done", function(obj, status) {
if(status) {
success(e, obj);
Zotero_Browser.progress.close();
} else {
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.lookup.error"));
Zotero_Browser.progress.startCloseTimer(8000);
}
});
Zotero_Browser.progress.show();
Zotero_Browser.progress.changeHeadline(Zotero.getString("ingester.lookup.performing"));
tab.page.translate.translate(false);
e.stopPropagation();
}
}
/*
* Gets a data object given a browser window object
*/
function _getTabObject(browser) {
if(!browser) return false;
if(!browser.zoteroBrowserData) {
browser.zoteroBrowserData = new Zotero_Browser.Tab(browser);
}
return browser.zoteroBrowserData;
}
/**
* Adds an annotation
*/
function _add(type, e) {
var tab = _getTabObject(Zotero_Browser.tabbrowser.selectedBrowser);
if(type == "annotation") {
// ignore click if it's on an existing annotation
if(e.target.getAttribute("zotero-annotation")) return;
var annotation = tab.page.annotations.createAnnotation();
annotation.initWithEvent(e);
// disable add mode, now that we've used it
toggleMode();
} else {
try {
var selection = Zotero_Browser.tabbrowser.selectedBrowser.contentWindow.getSelection();
} catch(err) {
return;
}
if(selection.isCollapsed) return;
if(type == "highlight") {
tab.page.annotations.highlight(selection.getRangeAt(0));
} else if(type == "unhighlight") {
tab.page.annotations.unhighlight(selection.getRangeAt(0));
}
selection.removeAllRanges();
}
// stop propagation
e.stopPropagation();
e.preventDefault();
}
}
//////////////////////////////////////////////////////////////////////////////
//
// Zotero_Browser.Tab
//
//////////////////////////////////////////////////////////////////////////////
Zotero_Browser.Tab = function(browser) {
this.browser = browser;
this.page = new Object();
}
Zotero_Browser.Tab.prototype.CAPTURE_STATE_DISABLED = 0;
Zotero_Browser.Tab.prototype.CAPTURE_STATE_GENERIC = 1;
Zotero_Browser.Tab.prototype.CAPTURE_STATE_TRANSLATABLE = 2;
/*
* clears page-specific information
*/
Zotero_Browser.Tab.prototype.clear = function() {
delete this.page;
this.page = new Object();
}
/*
* detects translators for this browser object
*/
Zotero_Browser.Tab.prototype.detectTranslators = function(rootDoc, doc) {
if (doc instanceof HTMLDocument) {
if (doc.documentURI.startsWith("about:")) {
return;
}
// get translators
var me = this;
var translate = new Zotero.Translate.Web();
translate.setDocument(doc);
translate.setHandler("translators", function(obj, item) { me._translatorsAvailable(obj, item) });
translate.setHandler("pageModified", function(translate, doc) { Zotero_Browser.itemUpdated(doc) });
translate.getTranslators(true);
} else if(doc.documentURI.substr(0, 7) == "file://") {
this._attemptLocalFileImport(doc);
}
}
/*
* searches for a document in all of the frames of a given document
*/
Zotero_Browser.Tab.prototype._searchFrames = function(rootDoc, searchDoc) {
if(rootDoc == searchDoc) return true;
var frames = rootDoc.getElementsByTagName("frame");
for (let i = 0; i < frames.length; i++) {
let frame = frames[i];
if(frame.contentDocument &&
(frame.contentDocument == searchDoc ||
this._searchFrames(frame.contentDocument, searchDoc))) {
return true;
}
}
var frames = rootDoc.getElementsByTagName("iframe");
for (let i = 0; i < frames.length; i++) {
let frame = frames[i];
if(frame.contentDocument &&
(frame.contentDocument == searchDoc ||
this._searchFrames(frame.contentDocument, searchDoc))) {
return true;
}
}
return false;
}
/*
* Attempts import of a file; to be run on local files only
*/
Zotero_Browser.Tab.prototype._attemptLocalFileImport = function(doc) {
if(doc.documentURI.match(/\.csl(\.xml|\.txt)?$/i)) {
// read CSL string
var csl = Zotero.File.getContentsFromURL(doc.documentURI);
if(csl.indexOf("http://purl.org/net/xbiblio/csl") != -1) {
// looks like a CSL; try to import
Zotero.Styles.install(csl, doc.documentURI);
}
} else {
// see if we can import this file
var file = Components.classes["@mozilla.org/network/protocol;1?name=file"]
.getService(Components.interfaces.nsIFileProtocolHandler)
.getFileFromURLSpec(doc.documentURI);
var me = this;
var translate = new Zotero.Translate.Import();
translate.setLocation(file);
translate.setHandler("translators", function(obj, item) { me._translatorsAvailable(obj, item) });
translate.getTranslators();
}
}
Zotero_Browser.Tab.prototype.getCaptureState = function () {
if (!this.page.saveEnabled) {
return this.CAPTURE_STATE_DISABLED;
}
if (this.page.translators && this.page.translators.length) {
return this.CAPTURE_STATE_TRANSLATABLE;
}
return this.CAPTURE_STATE_GENERIC;
}
/*
* returns the URL of the image representing the translator to be called on the
* current page, or false if the page cannot be scraped
*/
Zotero_Browser.Tab.prototype.getCaptureIcon = function (hiDPI) {
var suffix = hiDPI ? "@2x" : "";
switch (this.getCaptureState()) {
case this.CAPTURE_STATE_TRANSLATABLE:
var itemType = this.page.translators[0].itemType;
return (itemType === "multiple"
? "chrome://zotero/skin/treesource-collection" + suffix + ".png"
: Zotero.ItemTypes.getImageSrc(itemType));
// TODO: Show icons for images, PDFs, etc.?
default:
return "chrome://zotero/skin/treeitem-webpage" + suffix + ".png";
}
}
Zotero_Browser.Tab.prototype.getCaptureTooltip = function() {
switch (this.getCaptureState()) {
case this.CAPTURE_STATE_DISABLED:
var text = Zotero.getString('ingester.saveToZotero');
break;
case this.CAPTURE_STATE_TRANSLATABLE:
var text = Zotero.getString('ingester.saveToZotero');
if (this.page.translators[0].itemType == 'multiple') {
text += '…';
}
text += ' (' + this.page.translators[0].label + ')';
break;
// TODO: Different captions for images, PDFs, etc.?
default:
var text = Zotero.getString('ingester.saveToZotero')
+ " (" + Zotero.getString('itemTypes.webpage') + ")";
}
var key = Zotero.Keys.getKeyForCommand('saveToZotero');
if (key) {
// Add RLE mark in RTL mode to make shortcut render the right way
text += (Zotero.rtl ? ' \u202B' : ' ') + '('
+ (Zotero.isMac ? '⇧⌘' : Zotero.getString('general.keys.ctrlShift'))
+ key
+ ')';
}
return text;
}
Zotero_Browser.Tab.prototype.getCaptureCommand = function () {
switch (this.getCaptureState()) {
case this.CAPTURE_STATE_DISABLED:
return '';
case this.CAPTURE_STATE_TRANSLATABLE:
return '';
default:
return 'cmd_zotero_newItemFromCurrentPage';
}
}
/**********CALLBACKS**********/
/*
* called when a user is supposed to select items
*/
Zotero_Browser.Tab.prototype._selectItems = function(obj, itemList, callback) {
// this is kinda ugly, mozillazine made me do it! honest!
var io = { dataIn:itemList, dataOut:null }
var newDialog = window.openDialog("chrome://zotero/content/ingester/selectitems.xul",
"_blank","chrome,modal,centerscreen,resizable=yes", io);
if(!io.dataOut) { // user selected no items, so close the progress indicatior
Zotero_Browser.progress.close();
}
callback(io.dataOut);
}
/*
* called when translators are available
*/
Zotero_Browser.Tab.prototype._translatorsAvailable = function(translate, translators) {
this.page.saveEnabled = true;
if(translators && translators.length) {
//see if we should keep the previous set of translators
if(//we already have a translator for part of this page
this.page.translators && this.page.translators.length && this.page.document.location
//and the page is still there
&& this.page.document.defaultView && !this.page.document.defaultView.closed
//this set of translators is not targeting the same URL as a previous set of translators,
// because otherwise we want to use the newer set,
// but only if it's not in a subframe of the previous set
&& (this.page.document.location.href != translate.document.location.href ||
Zotero.Utilities.Internal.isIframeOf(translate.document.defaultView, this.page.document.defaultView))
//the best translator we had was of higher priority than the new set
&& (this.page.translators[0].priority < translators[0].priority
//or the priority was the same, but...
|| (this.page.translators[0].priority == translators[0].priority
//the previous set of translators targets the top frame or the current one does not either
&& (this.page.document.defaultView == this.page.document.defaultView.top
|| translate.document.defaultView !== this.page.document.defaultView.top)
))
) {
Zotero.debug("Translate: a better translator was already found for this page");
return; //keep what we had
} else {
this.clear(); //clear URL bar icon
this.page.saveEnabled = true;
}
Zotero.debug("Translate: found translators for page\n"
+ "Best translator: " + translators[0].label + " with priority " + translators[0].priority);
this.page.translate = translate;
this.page.translators = translators;
this.page.document = translate.document;
this.page.translate.clearHandlers("select");
this.page.translate.setHandler("select", this._selectItems);
} else if(translate.type != "import" && translate.document.documentURI.length > 7
&& translate.document.documentURI.substr(0, 7) == "file://") {
this._attemptLocalFileImport(translate.document);
}
if(!translators || !translators.length) Zotero.debug("Translate: No translators found");
Zotero_Browser.updateStatus();
}
Zotero_Browser.init();