var retractButton;
var cursorButton;
var bottomButton;
+var dialogBox;
+var dialogTitle;
+var dialogContent;
var metasenv = "";
function initialize()
retractButton = document.getElementById("retract");
cursorButton = document.getElementById("cursor");
bottomButton = document.getElementById("bottom");
+ dialogBox = document.getElementById("dialogBox");
+ dialogTitle = document.getElementById("dialogTitle");
+ dialogContent = document.getElementById("dialogContent");
// hide sequent view at start
hideSequent();
+
+ // initialize keyboard events in the unlocked script
+ init_keyboard(unlocked);
}
}
+function init_keyboard(target)
+{
+ if (target.addEventListener)
+ {
+// target.addEventListener("keydown",keydown,false);
+ target.addEventListener("keypress",keypress,false);
+// target.addEventListener("keyup",keyup,false);
+// target.addEventListener("textInput",textinput,false);
+ }
+ else if (target.attachEvent)
+ {
+// target.attachEvent("onkeydown", keydown);
+ target.attachEvent("onkeypress", keypress);
+// target.attachEvent("onkeyup", keyup);
+// target.attachEvent("ontextInput", textinput);
+ }
+ else
+ {
+// target.onkeydown= keydown;
+ target.onkeypress= keypress;
+// target.onkeyup= keyup;
+// target.ontextinput= textinput; // probably doesn't work
+ }
+
+}
+
+function keyval(n)
+{
+ if (n == null) return 'undefined';
+ var s= '' + n;
+ if (n >= 32 && n < 127) s+= ' (' + String.fromCharCode(n) + ')';
+ while (s.length < 9) s+= ' ';
+ return s;
+}
+
+function string_of_key(n)
+{
+ if (n == null) return 'undefined';
+ return String.fromCharCode(n);
+}
+
+function pressmesg(w,e)
+{
+ debug(w + ' keyCode=' + keyval(e.keyCode) +
+ ' which=' + keyval(e.which) +
+ ' charCode=' + keyval(e.charCode) +
+ '\n shiftKey='+e.shiftKey
+ + ' ctrlKey='+e.ctrlKey
+ + ' altKey='+e.altKey
+ + ' metaKey='+e.metaKey);
+}
+
+function suppressdefault(e,flag)
+{
+ if (flag)
+ {
+ if (e.preventDefault) e.preventDefault();
+ if (e.stopPropagation) e.stopPropagation();
+ }
+ return !flag;
+}
+
+function restoreSelection() {
+ unlocked.focus();
+ if (savedRange != null) {
+ if (window.getSelection)//non IE and there is already a selection
+ {
+ var s = window.getSelection();
+ if (s.rangeCount > 0)
+ s.removeAllRanges();
+ range = document.createRange();
+ range.setStart(savedsc,savedso);
+ range.collapse(true);
+ s.addRange(range);
+ }
+ else
+ if (document.createRange)//non IE and no selection
+ {
+ window.getSelection().addRange(savedRange);
+ }
+ else
+ if (document.selection)//IE
+ {
+ savedRange.select();
+ }
+ }
+}
+
+function lookup_tex(texmacro)
+{
+ texmacro = texmacro.substring(1);
+ return unescape(macro2utf8[texmacro]);
+}
+
+function keypress(e)
+{
+ if (!e) e= event;
+ pressmesg('keypress',e);
+ var s = string_of_key(e.charCode);
+ if (s == " ") {
+ j = getCursorPos();
+ i = unlocked.innerHTML.lastIndexOf('\\',j);
+ if (i >= 0) {
+ match = unlocked.innerHTML.substring(i,j);
+ pre = unlocked.innerHTML.substring(0,i);
+ post = unlocked.innerHTML.substring(j);
+
+ sym = lookup_tex(match);
+ if (typeof sym != "undefined") {
+ unlocked.innerHTML = pre + sym + " " + post;
+ restoreSelection();
+ return suppressdefault(e,true);
+ }
+ else {
+ restoreSelection();
+ return suppressdefault(e,false);
+ }
+ }
+ else return suppressdefault(e,false);
+ } else {
+ return suppressdefault(e,false);
+ }
+}
+
function debug(txt)
{
// internet explorer (v.9) doesn't work with innerHTML
+ // but google chrome's innerText is, in a sense, "write only"
+ // what should we do?
logarea.innerText = txt + "\n" + logarea.innerText;
}
callServer("open",processor,"file=" + escape(filename.value));
}
+function retrieveFile(thefile)
+{
+ processor = function(xml)
+ {
+ if (is_defined(xml)) {
+ locked.innerHTML = "";
+ unlocked.innerHTML = xml.documentElement.textContent;
+ } else {
+ debug("file open failed");
+ }
+ };
+ dialogBox.style.display = "none";
+ callServer("open",processor,"file=" + escape(thefile));
+}
+
+function showLibrary()
+{
+ var req = null;
+ // pause();
+ if (window.XMLHttpRequest)
+ {
+ req = new XMLHttpRequest();
+ }
+ else if (window.ActiveXObject)
+ {
+ try {
+ req = new ActiveXObject("Msxml2.XMLHTTP");
+ } catch (e)
+ {
+ try {
+ req = new ActiveXObject("Microsoft.XMLHTTP");
+ } catch (e) {}
+ }
+ }
+ req.onreadystatechange = function()
+ {
+
+ rs = req.readyState;
+
+ if(rs == 4)
+ {
+ stat = req.status;
+ stxt = req.statusText;
+ if(stat == 200)
+ {
+ debug(req.responseText);
+ showDialog("<H2>Library</H2>",req.responseText);
+ }
+ }
+ };
+ req.open("POST", "viewlib"); // + escape(unlocked.innerHTML), true);
+ req.setRequestHeader("Content-type","application/x-www-form-urlencoded");
+ req.send();
+
+}
+
var goalcell;
function hideSequent() {
workarea.appendChild(goalcell);
}
+function showDialog(title,content) {
+ dialogTitle.innerHTML = title;
+ dialogContent.innerHTML = content;
+ dialogBox.style.display = "block";
+}
+
function removeElement(id) {
var element = document.getElementById(id);
element.parentNode.removeChild(element);
}
+var savedsc;
+var savedso;
+
function getCursorPos() {
var cursorPos;
if (window.getSelection) {
var selObj = window.getSelection();
- var selRange = selObj.getRangeAt(0);
+ savedRange = selObj.getRangeAt(0);
+ savedsc = savedRange.startContainer;
+ savedso = savedRange.startOffset;
//cursorPos = findNode(selObj.anchorNode.parentNode.childNodes, selObj.anchorNode) + selObj.anchorOffset;
cursorPos = findNode(unlocked.childNodes, selObj.anchorNode,0) + selObj.anchorOffset;
/* FIXME the following works wrong in Opera when the document is longer than 32767 chars */
return(cursorPos);
}
else if (document.selection) {
- var range = document.selection.createRange();
- var bookmark = range.getBookmark();
+ savedRange = document.selection.createRange();
+ var bookmark = savedRange.getBookmark();
/* FIXME the following works wrong when the document is longer than 65535 chars */
cursorPos = bookmark.charCodeAt(2) - 11; /* Undocumented function [3] */
return(cursorPos);
}
return null;
}
+
+function delete_cookie ( cookie_name )
+{
+ var cookie_date = new Date(); // current date & time
+ cookie_date.setTime ( cookie_date.getTime() - 1 );
+ document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
+}
+
+function delete_session()
+{
+ delete_cookie("session");
+}
projects / helm.git / blobdiff