mostly cross-browser compatibility enhancements

README.mdown

@@ -34,6 +34,7 @@ Changelog
   - Script execution is now done via an async js request, preventing die() and exception to mess up the entire console
   - Added a status bar with char/line display
   - Added a toggle button to expand/collapse all krumo sub-trees at once
+  - Cross-browser compatibility enhancements
 - 1.0.0
   - Initial Public Release
 

jquery.selections.js

@@ -16,7 +16,6 @@
  * Source on Github http://github.com/Seldaek/jquery-selections
  */
 (function($) {
-
     /**
      * sets the caret position
      *
@@ -24,8 +23,19 @@
      * @see $.fn.setSelection
      */
     $.fn.setCaret = function(index) {
+        var range, elem;
+        elem = this.get(0);
+
+        if ($.browser.opera) {
+            match = this.val().match(/\n/g);
+            if (match) {
+                newlines = match.length;
+                index += newlines;
+            }
+        }
+
         this.setSelection(index);
-    }
+    };
 
     /**
      * returns the caret position, or 0 if the element has no caret
@@ -33,28 +43,58 @@
      * @return int
      */
     $.fn.getCaret = function() {
-        var elem, range, elemRange, elemRangeCopy;
+        var elem, range, elemRange, elemRangeCopy, value, caret, pos;
         elem = this.get(0);
 
+        value = $(elem).val();
+
+        // standard browsers
         if (elem.selectionStart) {
-            return elem.selectionStart;
+            caret = elem.selectionStart;
         } else if (document.selection) {
+            // old IE handling
             elem.focus();
-
             range = document.selection.createRange();
-            if (range === null) {
+
-                return 0;
+            // handle input texts
+            if (elem.nodeName === 'INPUT') {
+                elemRange = elem.createTextRange();
+                elemRangeCopy = elemRange.duplicate();
+                elemRange.moveToBookmark(range.getBookmark());
+                elemRangeCopy.setEndPoint('EndToStart', elemRange);
+                caret = elemRangeCopy.text.length;
+            } else {
+                // handle textareas
+                elemRangeCopy = range.duplicate();
+                elemRangeCopy.moveToElementText(elem);
+
+                pos = 0;
+                if (range.text.length > 1) {
+                    pos = Math.max(0, pos - range.text.length);
+                }
+
+                caret = -1 + pos;
+                elemRangeCopy .moveStart('character', pos);
+
+                while (elemRangeCopy.inRange(range)) {
+                    elemRangeCopy.moveStart('character');
+                    caret++;
+                }
             }
-
+        } else {
-            elemRange = elem.createTextRange(),
+            caret = 0;
-            elemRangeCopy = elemRange.duplicate();
-            elemRange.moveToBookmark(range.getBookmark());
-            elemRangeCopy.setEndPoint('EndToStart', elemRange);
-
-            return elemRangeCopy.text.length;
         }
 
-        return 0;
+        if ($.browser.opera) {
+            value = value.replace(/\r?\n/g, "\r\n").substr(0, caret);
+            match = value.match(/\r\n/g);
+            if (match) {
+                newlines = match.length;
+                caret -= newlines;
+            }
+        }
+
+        return caret;
     };
 
     /**
@@ -69,10 +109,12 @@
         elem = this.get(0);
         end = end || start;
 
+        // standard browsers
         if (elem.setSelectionRange) {
             elem.focus();
             elem.setSelectionRange(start, end);
         } else if (elem.createTextRange) {
+            // old IE handling
             range = elem.createTextRange();
             range.collapse(true);
             range.moveEnd('character', end);
@@ -83,6 +125,55 @@
         return this;
     };
 
+    /**
+     * reads the text the user selected
+     *
+     * @param int start index of the beginning of the selection
+     * @param int end index of the end of the selection
+     * @return string
+     */
+    $.fn.getSelectedText = function() {
+        var elem = this.get(0);
+
+        // standard browsers
+        if (elem.selectionStart) {
+            return elem.value.substr(elem.selectionStart, elem.selectionEnd);
+        }
+
+        // old IE
+        if (document.selection) {
+            elem.focus();
+            return document.selection.createRange().text;
+        }
+
+        return '';
+    };
+
+    /**
+     * injects the given text in place of the current selection
+     *
+     * @param string text
+     * @return object chainable
+     */
+    $.fn.replaceSelection = function(text) {
+        var elem = this.get(0);
+
+        // standard browsers
+        if (elem.selectionStart) {
+            elem.value = elem.value.substr(0, elem.selectionStart) + text + elem.value.substr(elem.selectionEnd, elem.value.length);
+            return this;
+        }
+
+        // old IE
+        if (document.selection) {
+            elem.focus();
+            document.selection.createRange().text = text;
+            return this;
+        }
+
+        return this;
+    };
+
     /**
      * injects the given text at the current caret position
      *
@@ -99,6 +190,5 @@
         $elem.setCaret(caret + text.length);
 
         return this;
-    }
+    };
-
+}(jQuery));
-}(jQuery));

php-console.js

@@ -13,59 +13,71 @@
  */
 $(function() {
 
-    var updateStatusBar;
+    var updateStatusBar, handleKeyPress;
 
     // updates the text of the status bar
     updateStatusBar = function() {
-        var caret, part, matches;
+        var caret, part, matches, charCount, lineCount;
         caret = $('textarea[name="code"]').getCaret();
-        part = $('textarea[name="code"]').val().substring(0, caret);
+        part = $('textarea[name="code"]').val().substr(0, caret);
-        matches = part.match(/(\r?\n)?([^\r\n]*)/g);
+        matches = part.match(/(\n|[^\r\n]*$)/g);
         part = matches.length > 1 ? matches[matches.length - 2] : matches[0];
-        $('.statusbar').text('Line: ' + Math.max(1, matches.length-1) + ', Column: ' + (matches.length > 2 ? part.length : part.length + 1));
+        lineCount = Math.max(1, matches.length);
+        // matched the first char of a line, so matches are only \n's
+        if (part === "" || part === "\r\n" || part === "\n") {
+            charCount = 1;
+        } else {
+            // matched another char, so we've got the current line as the next-to-last match
+            charCount = part.length + 1;
+            lineCount--;
+        }
+        $('.statusbar').text('Line: ' + lineCount + ', Column: ' + charCount);
+    };
+
+    handleKeyPress = function(e) {
+        var caret, part, matches;
+        switch(e.keyCode) {
+        case 9:
+            // add 4 spaces when tab is pressed
+            e.preventDefault();
+            $(this).injectText("    ");
+            break;
+        case 13:
+            // submit form on ctrl-enter or alt-enter
+            if (e.metaKey || e.altKey) {
+                e.preventDefault();
+                $('form').submit();
+                return;
+            }
+
+            // indent automatically the new lines
+            caret = $(this).getCaret();
+            part = $(this).val().substr(0, caret);
+            matches = part.match(/(\n +)[^\r\n]*$/);
+            if (matches) {
+                $(this).val(function(idx, val) {
+                    return val.substring(0, caret) + matches[1] + val.substring(caret);
+                });
+                $(this).setCaret(caret + matches[1].length);
+                e.preventDefault();
+            }
+            break;
+        }
+
+        updateStatusBar();
     };
 
     $('textarea[name="code"]')
-        .keydown(function(e) {
-            var caret, part, matches;
-            switch(e.keyCode) {
-            case 9:
-                // add 4 spaces when tab is pressed
-                e.preventDefault();
-                $(this).injectText("    ");
-                break;
-            case 13:
-                // submit form on ctrl-enter or alt-enter
-                if (e.metaKey || e.altKey) {
-                    e.preventDefault();
-                    $('form').submit();
-                    return;
-                }
-
-                // indent automatically the new lines
-                // skip because buggy in opera until they fix the preventDefault bug
-                if ($.browser.opera) {
-                    return;
-                }
-                caret = $(this).getCaret();
-                part = $(this).val().substring(0, caret);
-                matches = part.match(/(\r?\n +)[^\r\n]*$/);
-                if (matches) {
-                    $(this).val(function(idx, val) {
-                        return val.substring(0, caret) + matches[1] + val.substring(caret);
-                    });
-                    $(this).setCaret(caret + matches[1].length);
-                    e.preventDefault();
-                }
-                break;
-            }
-
-            updateStatusBar();
-        })
         .keyup(updateStatusBar)
         .click(updateStatusBar)
         .focus();
 
+    if ($.browser.opera) {
+        $('textarea[name="code"]').keypress(handleKeyPress);
+    } else {
+        $('textarea[name="code"]').keydown(handleKeyPress);
+    }
+
     updateStatusBar();
 
     $('input[name="subm"]').keyup(function(e) {