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lookup.js (6609B)

---

 /*
     ***** BEGIN LICENSE BLOCK *****
     
     Copyright © 2009-2011 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/>.
     
     ***** END LICENSE BLOCK *****
 */
 
 /**
  * Handles UI for lookup panel
  * @namespace
  */
 var Zotero_Lookup = new function () {
 	/**
 	 * Performs a lookup by DOI, PMID, or ISBN
 	 */
 	this.accept = Zotero.Promise.coroutine(function* (textBox) {
 		var identifiers = Zotero.Utilities.Internal.extractIdentifiers(textBox.value);
 		if (!identifiers.length) {
 			Zotero.alert(
 				window,
 				Zotero.getString("lookup.failure.title"),
 				Zotero.getString("lookup.failureToID.description")
 			);
 			return false;
 		}
 
 		var libraryID = false;
 		var collection = false;
 		try {
 			libraryID = ZoteroPane_Local.getSelectedLibraryID();
 			collection = ZoteroPane_Local.getSelectedCollection();
 		} catch(e) {
 			/** TODO: handle this **/
 		}
 
 		var successful = 0;					//counter for successful retrievals
 
 		Zotero_Lookup.toggleProgress(true);
 
 		for (let identifier of identifiers) {
 			var translate = new Zotero.Translate.Search();
 			translate.setIdentifier(identifier);
 
 			// be lenient about translators
 			let translators = yield translate.getTranslators();
 			translate.setTranslator(translators);
 
 			try {
 				yield translate.translate({
 					libraryID,
 					collections: collection ? [collection.id] : false
 				})
 				successful++;
 			}
 			// Continue with other ids on failure
 			catch (e) {
 				Zotero.logError(e);
 			}
 		}
 		
 		Zotero_Lookup.toggleProgress(false);
 		// TODO: Give indication if some failed
 		if (successful) {
 			document.getElementById("zotero-lookup-panel").hidePopup();
 		}
 		else {
 			Zotero.alert(
 				window,
 				Zotero.getString("lookup.failure.title"),
 				Zotero.getString("lookup.failure.description")
 			);
 		}
 		
 		return false;
 	});
 	
 	
 	this.showPanel = function (button) {
 		var panel = document.getElementById('zotero-lookup-panel');
 		panel.openPopup(button, "after_start", 16, -2, false, false);
 	}
 	
 	
 	/**
 	 * Focuses the field
 	 */
 	this.onShowing = function (event) {
 		// Ignore context menu
 		if (event.originalTarget.id != 'zotero-lookup-panel') return;
 		
 		document.getElementById("zotero-lookup-panel").style.padding = "10px";
 		this.getActivePanel().getElementsByTagName('textbox')[0].focus();
 	}
 	
 	
 	/**
 	 * Cancels the popup and resets fields
 	 */
 	this.onHidden = function (event) {
 		// Ignore context menu
 		if (event.originalTarget.id != 'zotero-lookup-panel') return;
 		
 		document.getElementById("zotero-lookup-textbox").value = "";
 		document.getElementById("zotero-lookup-multiline-textbox").value = "";
 		Zotero_Lookup.toggleProgress(false);
 	}
 	
 	
 	this.getActivePanel = function() {
 		var mlPanel = document.getElementById("zotero-lookup-multiline");
 		if (mlPanel.collapsed) return document.getElementById("zotero-lookup-singleLine");
 		return mlPanel;
 	}
 	
 	
 	/**
 	 * Handles a key press
 	 */
 	this.onKeyPress = function(event, textBox) {
 		var keyCode = event.keyCode;
 		//use enter to start search, shift+enter to insert a new line. Flipped in multiline mode
 		var multiline = textBox.getAttribute('multiline');
 		var search = multiline ? event.shiftKey : !event.shiftKey;
 		if(keyCode === 13 || keyCode === 14) {
 			if(search) {
 				Zotero_Lookup.accept(textBox);
 				event.stopImmediatePropagation();
 			} else if(!multiline) {	//switch to multiline
 				var mlTextbox = Zotero_Lookup.toggleMultiline(true);
 				mlTextbox.value = mlTextbox.value + '\n';
 			}
 		} else if(keyCode == event.DOM_VK_ESCAPE) {
 			document.getElementById("zotero-lookup-panel").hidePopup();
 		}
 		return true;
 	}
 	
 	
 	this.onInput = function (event, textbox) {
 		this.adjustTextbox(textbox);
 	};
 	
 	
 	/**
 	 * Converts the textbox to multiline if newlines are detected
 	 */
 	this.adjustTextbox = function (textbox) {
 		if (textbox.value.trim().match(/[\r\n]/)) {
 			Zotero_Lookup.toggleMultiline(true);
 		}
 		// Since we ignore trailing and leading newlines, we should also trim them for display
 		// can't use trim, because then we cannot add leading/trailing spaces to the single line textbox
 		else {
 			textbox.value = textbox.value.replace(/^([ \t]*[\r\n]+[ \t]*)+|([ \t]*[\r\n]+[ \t]*)+$/g,"");
 		}
 	}
 	
 	
 	/**
 	 * Performs the switch to multiline textbox and returns that textbox
 	 */
 	this.toggleMultiline = function(on) {
 		var mlPanel = document.getElementById("zotero-lookup-multiline");
 		var mlTxtBox = document.getElementById("zotero-lookup-multiline-textbox");
 		var slPanel = document.getElementById("zotero-lookup-singleLine");
 		var slTxtBox = document.getElementById("zotero-lookup-textbox");
 		var source = on ? slTxtBox : mlTxtBox;
 		var dest = on ? mlTxtBox : slTxtBox;
 
 		if((mlPanel.collapsed && !on) || (!mlPanel.collapsed && on)) return dest;
 
 		//copy over the value
 		dest.value = source.value;
 
 		//switch textboxes
 		mlPanel.setAttribute("collapsed", !on);
 		slPanel.setAttribute("collapsed", !!on);
 
 		// Resize arrow box to fit content
 		if(Zotero.isMac) {
 			var panel = document.getElementById("zotero-lookup-panel");
 			var box = panel.firstChild;
 			panel.sizeTo(box.scrollWidth, box.scrollHeight);
 		}
 
 		dest.focus();
 		return dest;
 	}
 
 	this.toggleProgress = function(on) {
 		// In Firefox 52.6.0, progressmeters burn CPU at idle on Linux when undetermined, even
 		// if they're hidden. (Being hidden is enough on macOS.)
 		var mode = on ? 'undetermined' : 'determined';
 		
 		//single line
 		var txtBox = document.getElementById("zotero-lookup-textbox");
 		txtBox.style.opacity = on ? 0.5 : 1;
 		txtBox.disabled = !!on;
 		var p1 = document.getElementById("zotero-lookup-progress");
 		p1.mode = mode;
 
 		//multiline
 		document.getElementById("zotero-lookup-multiline-textbox").disabled = !!on;
 		var p2 = document.getElementById("zotero-lookup-multiline-progress");
 		p2.mode = mode;
 	}
 }