MOve more IE<9 code to legacy_browser

1 files changed, 79 insertions, 1 deletions

diff --git a/plugins/legacy_browser/js/iehacks.js b/plugins/legacy_browser/js/iehacks.js
index 129ad6003..91dc6d63a 100644
--- a/plugins/legacy_browser/js/iehacks.js
+++ b/plugins/legacy_browser/js/iehacks.js
@@ -1,7 +1,8 @@
 
 // Make getElementById() case-sensitive on IE7
 document._getElementById = document.getElementById;
-document.getElementById = function(id) {
+document.getElementById = function(id)
+{
   var i = 0, obj = document._getElementById(id);
 
   if (obj && obj.id != id)
@@ -18,3 +19,80 @@ $(document).ready(function() {
       $('li:last-child', ul).css('border-bottom', 0);
   });
 });
+
+// gets cursor position (IE<9)
+rcube_webmail.prototype.get_caret_pos = function(obj)
+{
+  if (document.selection && document.selection.createRange) {
+    var range = document.selection.createRange();
+    if (range.parentElement() != obj)
+      return 0;
+
+    var gm = range.duplicate();
+    if (obj.tagName == 'TEXTAREA')
+      gm.moveToElementText(obj);
+    else
+      gm.expand('textedit');
+
+    gm.setEndPoint('EndToStart', range);
+    var p = gm.text.length;
+
+    return p <= obj.value.length ? p : -1;
+  }
+
+  return obj.value.length;
+};
+
+// moves cursor to specified position (IE<9)
+rcube_webmail.prototype.set_caret_pos = function(obj, pos)
+{
+  if (obj.createTextRange) {
+    var range = obj.createTextRange();
+    range.collapse(true);
+    range.moveEnd('character', pos);
+    range.moveStart('character', pos);
+    range.select();
+  }
+};
+
+// get selected text from an input field (IE<9)
+// http://stackoverflow.com/questions/7186586/how-to-get-the-selected-text-in-textarea-using-jquery-in-internet-explorer-7
+rcube_webmail.prototype.get_input_selection = function(obj)
+{
+  var start = 0, end = 0, len,
+    normalizedValue, textInputRange, endRange,
+    range = document.selection.createRange();
+
+  if (range && range.parentElement() == obj) {
+    len = obj.value.length;
+    normalizedValue = obj.value; //.replace(/\r\n/g, "\n");
+
+    // create a working TextRange that lives only in the input
+    textInputRange = obj.createTextRange();
+    textInputRange.moveToBookmark(range.getBookmark());
+
+    // Check if the start and end of the selection are at the very end
+    // of the input, since moveStart/moveEnd doesn't return what we want
+    // in those cases
+    endRange = obj.createTextRange();
+    endRange.collapse(false);
+
+    if (textInputRange.compareEndPoints("StartToEnd", endRange) > -1) {
+      start = end = len;
+    }
+    else {
+      start = -textInputRange.moveStart("character", -len);
+      start += normalizedValue.slice(0, start).split("\n").length - 1;
+
+      if (textInputRange.compareEndPoints("EndToEnd", endRange) > -1) {
+        end = len;
+      }
+      else {
+        end = -textInputRange.moveEnd("character", -len);
+        end += normalizedValue.slice(0, end).split("\n").length - 1;
+      }
+    }
+  }
+
+  return {start: start, end: end, text: normalizedValue.substr(start, end-start)};
+};