// Copyright 2003-2004, Cross Language Inc., All Rights Reserved. // // Project: webtranser // File: $Id: dblclickdict.js,v 1.1 2008/05/22 07:04:15 jumoriya Exp $ // Author: Brodie Thiesfield // Summary: Provide dictionary lookup on the word selected by a left double click // // NOTES: // * the body tag attribute 'ondblclick' should be set to call this like: // // target maximum number of characters to return as the selection. The actual number // of characters may exceed this as the selection code always returns a word boundary. var g_nMaxSelectionLen = 30; // ---------------------------------------------------------------------------- // onDblClickDictLookup() // Double click handler for the main body. // // Parameters: // e Event Event object for this handler // // Return: // false Don't continue normal processing of this event // function onDblClickDictLookup(e) { showPopupDict(e); return false; } // ---------------------------------------------------------------------------- // showPopupDict() // Get the selected word and show the popup dictionary window for it. // // Parameters: // none // // Return: // true Dictionary lookup attempted // false No dictionary lookup was attempted (e.g. no word selected) // function showPopupDict(e) { //alert("showPopupDict"); // get the current word var strWord = getCurrentSelection(e); if ( !strWord || strWord.length < 1 ) { return false; } // get the appropriate EID to use for this word //TODO: determine the correct EID var strEid = g_strEid; g_bDblClk = false; // NOTE: // Quick and dirty plural stemming has been removed as it is English specific. It // is the job of the engine to stem the word if necessary when looking it up in the // dictionary. // // do cheap plural stemming //strWord = fixWord( strWord, /(le)s$/ ); // girdles -> girdle //strWord = fixWord( strWord, /([aeiou][^aeiou]e)s$/ ); // estimates -> estimate //strWord = fixWord( strWord, /([cg]e)s$/ ); // faces -> face, gauges -> gauge //strWord = fixWord( strWord, /([^aeioucs])e?s$/ ); // most words are like this, e.g., dogs -> dog, fishes -> fish //strWord = strWord.replace( /ies$/, 'y' ); // flies -> fly // show the popup lookupDict( strEid, strWord ); return true; } // ---------------------------------------------------------------------------- // lookupDict() // Lookup the selected word in the dictionary // // Parameters: // a_strEid EID to use // a_strWord Word to lookup // // Return: // nothing // function lookupDict( a_strEid, a_strWord ) { // var strUrl = 'http://dic.yahoo.co.jp/bin/dsearch?p=' + urlEncode( a_strWord ) + '&stype=1&dtype=1'; // var strUrl = 'dictlookup.php?eid=' + a_strEid + '&text=' + urlEncode( a_strWord ); // var oPopup = window.open( strUrl, 'dblClickDict' ); // oPopup.focus(); // 2005/01/05 var f = window.document.ydicForm; f.stype.value = 1; f.dtype.value = 1; f.p.value = a_strWord; f.enc.value = "utf-8"; f.target = "dic"; f.method = "get"; f.submit(); // 2005/01/07 //var strUrl = 'http://rd.yahoo.co.jp/dic/redirect_from_translation/?http://dic.yahoo.co.jp/bin/dsearch?stype=1&dtype=1&enc=utf-8&p=' + urlEncode( a_strWord ); // window.open( strUrl, 'dic' ); } // ---------------------------------------------------------------------------- // getCurrentSelection() // Get the currently selected text from the document. // // Parameters: // none // // Return: // string Selected text // function getCurrentSelection(e) { // get the currently selected text var strText = ''; if ( ctw_is.mac && ctw_is.ie5up ) { strText = '' + document.getSelection(); } else if ( window.getSelection ) { strText = '' + window.getSelection(); } else if ( document.selection && document.selection.createRange ) { var range = document.selection.createRange(); if (range) { // ensure that we aren't taking a selection from inside a text // input field. This is extremely annoying to the user. var el = range.parentElement(); // var el = range.parentNode(); while ( el && el.tagName != 'TEXTAREA' && el.tagName != 'INPUT' ) { el = el.parentElement; // el = el.parentNode; } if ( !el ) { strText = range.text; } } } if ( !strText || !strText.length ) { return ''; } // trim the string and replace all internal whitespace with // single spaces //strText = strText.replace( /^\s*(.*?)\s*$/, '$1' ); //strText = strText.replace( /\s+/g, ' ' ); // truncate the text at the maximum selection length and trim back to the last space // where possible, otherwise trim it forward at the next space (always return the // selection at a word break) if ( strText.length > g_nMaxSelectionLen ) { var nLastChar = strText.lastIndexOf( ' ', g_nMaxSelectionLen ); if ( nLastChar == -1 ) { nLastChar = strText.indexOf( ' ', g_nMaxSelectionLen ); } if ( nLastChar != -1 ) { strText = strText.substr( 0, nLastChar ); } } return strText; } // ---------------------------------------------------------------------------- // urlEncode() // Replacement function for escape() to correctly encode a string using utf-8 // URL encoding (RFC1738) in all browsers. If escape() is used, IE codes the // string using the unicode %uXXXX encoding instead of a utf-8 encoding which // isn't correctly decoded in PHP. // // Source derived from: // Ronen Botzer, http://www.zend.com/codex.php?id=839&single=1 // // Parameters: // strText string Text to encode // // Return: // string Encoded text // function urlEncode( a_strText ) { nLen = a_strText.length; strResult = new String(); oCharOrd = new Number(); for ( i = 0; i < nLen; i++) { oCharOrd = a_strText.charCodeAt(i); if ( ( oCharOrd >= 65 && oCharOrd <= 90 ) || ( oCharOrd >= 97 && oCharOrd <= 122 ) || ( oCharOrd >= 48 && oCharOrd <= 57 ) || ( oCharOrd == 33 ) || ( oCharOrd == 36 ) || ( oCharOrd == 95 ) ) { // this is alphanumeric or $-_.+!*'(), which according to RFC1738 we don't escape strResult += a_strText.charAt(i); } else { strResult += '%'; if ( oCharOrd > 255 ) { strResult += 'u'; } strHexVal = oCharOrd.toString(16); if ( (strHexVal.length) % 2 == 1 ) { strHexVal = '0' + strHexVal; } strResult += strHexVal; } } return strResult; } // NOTE: // Only used by plural stemming code function fixWord( a_strWord, a_re ) { a_re.exec( a_strWord ); a_strWord = a_strWord.replace( a_re, RegExp.$1 ); return a_strWord; } var g_bDblClk = false; var g_strQuery; // NOTE: // The following code was designed to allow arbitrary selections of text from the document // and to look that up in the dictionary. We are not using this code anymore and are instead // just relying on the standard double click mechanism in the browser. // // If this code is reinserted, then the following note is relevant... // * browsersniff.js must be included before this script function installEventHandlers() { if ( ctw_is.nav ) { // Netscape Navigator window.captureEvents( Event.DBLCLICK | Event.MOUSEUP | Event.KEYDOWN ); //window.onDblClick = dblClickHandler; //window.document.onDblClick = dblClickHandler; //window.onKeyDown = keyDownHandler; //window.onMouseUp = mouseUpHandler; //window.document.body.ondblclick = dblClickHandler; } else if ( ctw_is.ie ) { //alert( 'installEventHandlers;ie;start' ); // Microsoft Internet Explorer //window.document.ondblclick = dblClickHandler; //document.onkeydown = keyDownHandler; if ( ctw_is.mac && ctw_is.ie5up ) { document.ondblclick = dblClickHandler; document.onmouseup = mouseUpHandler; } } } function dblClickHandler(e) { // Set global variable. g_bDblClk = true; if ( ctw_is.mac && ctw_is.ie5up ) { return; } // If selection is set now, pop up the dictionary window. showPopupDict(e); return true; } function keyDownHandler(e) { if ( !g_strQuery && document.forms.length > 0 ) { g_strQuery = document.forms[0].query.value; } if ( (ctw_is.nav && e.which == 13) || (ctw_is.ie && event.keyCode == 13) ) { // User hit carriage return while reading // the page. Search on selected text. // Make sure the form value hasn't changed. // If it's different, search on the form value instead. var strText = getCurrentSelection(); if ( strText.length && document.forms.length > 0 && g_strQuery == document.forms[0].query.value ) { document.forms[0].query.value = strText; document.forms[0].submit(); } else { showPopupDict(); } } // Continue normal processing for this keystroke. return true; } function mouseUpHandler(e) { // alert( 'mouseUpHandler' ); // If selection is only set here on double-click, pop up the dictionary now. if ( g_bDblClk ) showPopupDict(); return true; }