indenting.inc

<?php
global $ROOT_PATH;
include_once($ROOT_PATH.'wysiwyg_plugin.inc');

class indenting extends wysiwyg_plugin
{

    function indenting()
    {
        $this->_add_button('outdent','Outdent','Decrease Indent','false','28');
        $this->_add_button('indent','Indent','Increase Indent','false','29');
    }


    function paint_generic()
    {
        ?>
        <script type="text/javascript">
            // Called when the user clicks on "Insert Blockquote" button
            HTMLArea.prototype._changeIndent = function(direction) {

                if (HTMLArea.is_ie) {

                    // IE - we need to override some stuff
                    var blockElts = "|applet|div|embed|fieldset|form|h1|h2|h3|h4|h5|h6|iframe|ilayer|img|object|p|pre|quote|table|textarea|ul|ol|";
                    var sel = this._getSelection();
                    var range = this._createRange(sel);
                    range.expand();
                    range.select();
                    if (direction == 'right') {

                        // First get the browser to do its thing
                        this._execCommand('indent', false, '');

                        // Second, remove the blockquote element if necessary
                        var sel = this._getSelection();
                        var range = this._createRange(sel);
                        range.expand();
                        var parent = range.parentElement();
                        if (parent.tagName.toLowerCase() == 'p') {
                            parent = parent.parentNode;
                        }
                        if (parent.tagName == 'BLOCKQUOTE') {
                            var subElt = parent.firstChild;
                            while (subElt != null) {
                                newElt = subElt.nextSibling;
                                if (subElt.tagName) {
                                    if (blockElts.indexOf('|'+subElt.tagName.toLowerCase()+'|') != -1) {
                                        this._setLeftMargin(direction, subElt);
                                    }
                                    parent.removeChild(subElt);
                                    parent.parentNode.insertBefore(subElt, parent);
                                }
                                subElt = newElt;
                            }
                            parent.parentNode.removeChild(parent);
                        }
                    } else {

                        // First, try to trim off left margin ourselves
                        var tRange =  this._doc.selection.createRange()
                        if (tRange.parentElement().tagName.toLowerCase() == 'p') {
                            tRange.moveToElementText(tRange.parentElement());
                        }
                        tRange.moveStart('character', -1);
                        tRange.moveEnd('character', 1);
                        var parent = this.getParentElement();
                        if (parent.tagName.toLowerCase() == 'p') {
                            parent = parent.parentNode;
                        }
                        var subElt = parent.firstChild;
                        var success = false;
                        var foundFirst = false;
                        while (subElt != null) {
                            var nextElt = subElt.nextSibling;
                            if (subElt.tagName) {
                                var nodeRange = tRange.duplicate();
                                nodeRange.moveToElementText(subElt);
                                nodeRange.expand();
                                if (tRange.inRange(nodeRange)) {
                                    if (blockElts.indexOf('|'+subElt.tagName.toLowerCase()+'|') != -1) {
                                        success = this._setLeftMargin(direction, subElt) || success;
                                    }
                                }
                            }
                            subElt = nextElt;
                        }

                        // If we didn't catch anything, send it to the browser for handling
                        if (!success) {
                            this._doc.execCommand('outdent', false, '');
                        }
                    }

                } else {

                    // NOT IE - browser default behaviour is fine
                    this._doc.execCommand((direction == 'left') ? 'outdent' : 'indent', false, '');

                }
            }

            // Set the left margin value of the element's style
            HTMLArea.prototype._setLeftMargin = function(direction, el) {
                if (el.style.marginLeft == "" || el.style.marginLeft == "0pt"|| el.style.marginLeft == "0px") {
                    if (direction == "right") {
                        el.style.marginLeft = "40px";
                    } else {
                        return false; // could not outdent
                    }
                } else {
                    var new_px;
                    var result = el.style.marginLeft.match(/(\d)+px/g);
                    var current_indent = parseInt(result[0]);
                    if (direction == "right") {
                        new_px = current_indent + 40;
                    } else if (direction == "left") {
                        if (current_indent > 40) {
                            new_px = current_indent - 40;
                        } else if (current_indent == 40) {
                            new_px = 0;
                        } else {
                            return false; // could not outdent
                        }
                    }
                    el.style.marginLeft = new_px.toString();
                }
                return true;
            };

        </script>
        <?php
    }


    function print_plugin_button_click()
    {
        ?>
        case "outdent":
            this._changeIndent("left");
        break;
        case "indent":
            this._changeIndent("right");
        break;
        <?php

    }//end print_plugin_button_click()

}

?>