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/**
 * $Id: mcwindows.js 18 2006-06-29 14:11:23Z spocke $
 *
 * Moxiecode DHTML Windows script.
 *
 * @author Moxiecode
 * @copyright Copyright © 2004, Moxiecode Systems AB, All rights reserved.
 */

// Windows handler
function MCWindows() {
        this.settings = new Array();
        this.windows = new Array();
        this.isMSIE = (navigator.appName == "Microsoft Internet Explorer");
        this.isGecko = navigator.userAgent.indexOf('Gecko') != -1;
        this.isSafari = navigator.userAgent.indexOf('Safari') != -1;
        this.isMac = navigator.userAgent.indexOf('Mac') != -1;
        this.isMSIE5_0 = this.isMSIE && (navigator.userAgent.indexOf('MSIE 5.0') != -1);
        this.action = "none";
        this.selectedWindow = null;
        this.zindex = 100;
        this.mouseDownScreenX = 0;
        this.mouseDownScreenY = 0;
        this.mouseDownLayerX = 0;
        this.mouseDownLayerY = 0;
        this.mouseDownWidth = 0;
        this.mouseDownHeight = 0;
};

MCWindows.prototype.init = function(settings) {
        this.settings = settings;

        if (this.isMSIE)
                this.addEvent(document, "mousemove", mcWindows.eventDispatcher);
        else
                this.addEvent(window, "mousemove", mcWindows.eventDispatcher);

        this.addEvent(document, "mouseup", mcWindows.eventDispatcher);
};

MCWindows.prototype.getParam = function(name, default_value) {
        var value = null;

        value = (typeof(this.settings[name]) == "undefined") ? default_value : this.settings[name];

        // Fix bool values
        if (value == "true" || value == "false")
                return (value == "true");

        return value;
};

MCWindows.prototype.eventDispatcher = function(e) {
        e = typeof(e) == "undefined" ? window.event : e;

        if (mcWindows.selectedWindow == null)
                return;

        // Switch focus
        if (mcWindows.isGecko && e.type == "mousedown") {
                var elm = e.currentTarget;

                for (var n in mcWindows.windows) {
                        var win = mcWindows.windows[n];
                        if (typeof(win) == 'function')
                                continue;

                        if (win.headElement == elm || win.resizeElement == elm) {
                                win.focus();
                                break;
                        }
                }
        }

        switch (e.type) {
                case "mousemove":
                        mcWindows.selectedWindow.onMouseMove(e);
                        break;

                case "mouseup":
                        mcWindows.selectedWindow.onMouseUp(e);
                        break;

                case "mousedown":
                        mcWindows.selectedWindow.onMouseDown(e);
                        break;

                case "focus":
                        mcWindows.selectedWindow.onFocus(e);
                        break;
        }
}

MCWindows.prototype.addEvent = function(obj, name, handler) {
        if (this.isMSIE)
                obj.attachEvent("on" + name, handler);
        else
                obj.addEventListener(name, handler, true);
};

MCWindows.prototype.cancelEvent = function(e) {
        if (this.isMSIE) {
                e.returnValue = false;
                e.cancelBubble = true;
        } else
                e.preventDefault();
};

MCWindows.prototype.parseFeatures = function(opts) {
        // Cleanup the options
        opts = opts.toLowerCase();
        opts = opts.replace(/;/g, ",");
        opts = opts.replace(/[^0-9a-z=,]/g, "");

        var optionChunks = opts.split(',');
        var options = new Array();

        options['left'] = 10;
        options['top'] = 10;
        options['width'] = 300;
        options['height'] = 300;
        options['resizable'] = true;
        options['minimizable'] = true;
        options['maximizable'] = true;
        options['close'] = true;
        options['movable'] = true;

        if (opts == "")
                return options;

        for (var i=0; i<optionChunks.length; i++) {
                var parts = optionChunks[i].split('=');

                if (parts.length == 2)
                        options[parts[0]] = parts[1];
        }

        return options;
};

MCWindows.prototype.open = function(url, name, features) {
        var win = new MCWindow();
        var winDiv, html = "", id;

        features = this.parseFeatures(features);

        // Create div
        id = "mcWindow_" + name;

        width = parseInt(features['width']);
        height = parseInt(features['height'])-12-19;

        if (this.isMSIE)
                width -= 2;

        // Setup first part of window
        win.id = id;
        win.url = url;
        win.name = name;
        win.features = features;
        this.windows[name] = win;

        iframeWidth = width;
        iframeHeight = height;

        // Create inner content
        html += '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">';
        html += '<html>';
        html += '<head>';
        html += '<title>Wrapper iframe</title>';
        html += '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">';
        html += '<link href="../jscripts/tiny_mce/themes/advanced/css/editor_ui.css" rel="stylesheet" type="text/css" />';
        html += '</head>';
        html += '<body onload="parent.mcWindows.onLoad(\'' + name + '\');">';

        html += '<div id="' + id + '_container" class="mceWindow">';
        html += '<div id="' + id + '_head" class="mceWindowHead" onmousedown="parent.mcWindows.windows[\'' + name + '\'].focus();">';
        html += '  <div id="' + id + '_title" class="mceWindowTitle"';
        html += '  onselectstart="return false;" unselectable="on" style="-moz-user-select: none !important;">No name window</div>';
        html += '    <div class="mceWindowHeadTools">';
        html += '      <a href="javascript:parent.mcWindows.windows[\'' + name + '\'].close();" onmousedown="return false;" class="mceWindowClose"><img border="0" src="../jscripts/tiny_mce/themes/advanced/images/window_close.gif" /></a>';
//      html += '      <a href="javascript:mcWindows.windows[\'' + name + '\'].maximize();" onmousedown="return false;" class="mceWindowMaximize"></a>';
//      html += '      <a href="javascript:mcWindows.windows[\'' + name + '\'].minimize();" onmousedown="return false;" class="mceWindowMinimize"></a>';
        html += '    </div>';
        html += '</div><div id="' + id + '_body" class="mceWindowBody" style="width: ' + width + 'px; height: ' + height + 'px;">';
        html += '<iframe id="' + id + '_iframe" name="' + id + '_iframe" onfocus="parent.mcWindows.windows[\'' + name + '\'].focus();" frameborder="0" width="' + iframeWidth + '" height="' + iframeHeight + '" src="' + url + '" class="mceWindowBodyIframe"></iframe></div>';
        html += '<div id="' + id + '_statusbar" class="mceWindowStatusbar" onmousedown="parent.mcWindows.windows[\'' + name + '\'].focus();">';
        html += '<div id="' + id + '_resize" class="mceWindowResize"><img onmousedown="parent.mcWindows.windows[\'' + name + '\'].focus();" border="0" src="../jscripts/tiny_mce/themes/advanced/images/window_resize.gif" /></div>';
        html += '</div>';
        html += '</div>';

        html += '</body>';
        html += '</html>';

        // Create iframe
        this.createFloatingIFrame(id, features['left'], features['top'], features['width'], features['height'], html);
};

// Gets called when wrapper iframe is initialized
MCWindows.prototype.onLoad = function(name) {
        var win = mcWindows.windows[name];
        var id = "mcWindow_" + name;
        var wrapperIframe = window.frames[id + "_iframe"].frames[0];
        var wrapperDoc = window.frames[id + "_iframe"].document;
        var doc = window.frames[id + "_iframe"].document;
        var winDiv = document.getElementById("mcWindow_" + name + "_div");
        var realIframe = window.frames[id + "_iframe"].frames[0];

        // Set window data
        win.id = "mcWindow_" + name + "_iframe";
        win.winElement = winDiv;
        win.bodyElement = doc.getElementById(id + '_body');
        win.iframeElement = doc.getElementById(id + '_iframe');
        win.headElement = doc.getElementById(id + '_head');
        win.titleElement = doc.getElementById(id + '_title');
        win.resizeElement = doc.getElementById(id + '_resize');
        win.containerElement = doc.getElementById(id + '_container');
        win.left = win.features['left'];
        win.top = win.features['top'];
        win.frame = window.frames[id + '_iframe'].frames[0];
        win.wrapperFrame = window.frames[id + '_iframe'];
        win.wrapperIFrameElement = document.getElementById(id + "_iframe");

        // Add event handlers
        mcWindows.addEvent(win.headElement, "mousedown", mcWindows.eventDispatcher);
        mcWindows.addEvent(win.resizeElement, "mousedown", mcWindows.eventDispatcher);

        if (mcWindows.isMSIE) {
                mcWindows.addEvent(realIframe.document, "mousemove", mcWindows.eventDispatcher);
                mcWindows.addEvent(realIframe.document, "mouseup", mcWindows.eventDispatcher);
        } else {
                mcWindows.addEvent(realIframe, "mousemove", mcWindows.eventDispatcher);
                mcWindows.addEvent(realIframe, "mouseup", mcWindows.eventDispatcher);
                mcWindows.addEvent(realIframe, "focus", mcWindows.eventDispatcher);
        }

        for (var i=0; i<window.frames.length; i++) {
                if (!window.frames[i]._hasMouseHandlers) {
                        if (mcWindows.isMSIE) {
                                mcWindows.addEvent(window.frames[i].document, "mousemove", mcWindows.eventDispatcher);
                                mcWindows.addEvent(window.frames[i].document, "mouseup", mcWindows.eventDispatcher);
                        } else {
                                mcWindows.addEvent(window.frames[i], "mousemove", mcWindows.eventDispatcher);
                                mcWindows.addEvent(window.frames[i], "mouseup", mcWindows.eventDispatcher);
                        }

                        window.frames[i]._hasMouseHandlers = true;
                }
        }

        if (mcWindows.isMSIE) {
                mcWindows.addEvent(win.frame.document, "mousemove", mcWindows.eventDispatcher);
                mcWindows.addEvent(win.frame.document, "mouseup", mcWindows.eventDispatcher);
        } else {
                mcWindows.addEvent(win.frame, "mousemove", mcWindows.eventDispatcher);
                mcWindows.addEvent(win.frame, "mouseup", mcWindows.eventDispatcher);
                mcWindows.addEvent(win.frame, "focus", mcWindows.eventDispatcher);
        }

        this.selectedWindow = win;
};

MCWindows.prototype.createFloatingIFrame = function(id_prefix, left, top, width, height, html) {
        var iframe = document.createElement("iframe");
        var div = document.createElement("div");

        width = parseInt(width);
        height = parseInt(height)+1;

        // Create wrapper div
        div.setAttribute("id", id_prefix + "_div");
        div.setAttribute("width", width);
        div.setAttribute("height", (height));
        div.style.position = "absolute";
        div.style.left = left + "px";
        div.style.top = top + "px";
        div.style.width = width + "px";
        div.style.height = (height) + "px";
        div.style.backgroundColor = "white";
        div.style.display = "none";

        if (this.isGecko) {
                iframeWidth = width + 2;
                iframeHeight = height + 2;
        } else {
                iframeWidth = width;
                iframeHeight = height + 1;
        }

        // Create iframe
        iframe.setAttribute("id", id_prefix + "_iframe");
        iframe.setAttribute("name", id_prefix + "_iframe");
        iframe.setAttribute("border", "0");
        iframe.setAttribute("frameBorder", "0");
        iframe.setAttribute("marginWidth", "0");
        iframe.setAttribute("marginHeight", "0");
        iframe.setAttribute("leftMargin", "0");
        iframe.setAttribute("topMargin", "0");
        iframe.setAttribute("width", iframeWidth);
        iframe.setAttribute("height", iframeHeight);
//      iframe.setAttribute("src", "../jscripts/tiny_mce/blank.htm");
        // iframe.setAttribute("allowtransparency", "false");
        iframe.setAttribute("scrolling", "no");
        iframe.style.width = iframeWidth + "px";
        iframe.style.height = iframeHeight + "px";
        iframe.style.backgroundColor = "white";
        div.appendChild(iframe);

        document.body.appendChild(div);

        // Fixed MSIE 5.0 issue
        div.innerHTML = div.innerHTML;

        if (this.isSafari) {
                // Give Safari some time to setup
                window.setTimeout(function() {
                        doc = window.frames[id_prefix + '_iframe'].document;
                        doc.open();
                        doc.write(html);
                        doc.close();
                }, 10);
        } else {
                doc = window.frames[id_prefix + '_iframe'].window.document
                doc.open();
                doc.write(html);
                doc.close();
        }

        div.style.display = "block";

        return div;
};

// Window instance
function MCWindow() {
};

MCWindow.prototype.focus = function() {
        this.winElement.style.zIndex = mcWindows.zindex++;
        mcWindows.selectedWindow = this;
};

MCWindow.prototype.minimize = function() {
};

MCWindow.prototype.maximize = function() {
        
};

MCWindow.prototype.startResize = function() {
        mcWindows.action = "resize";
};

MCWindow.prototype.startMove = function(e) {
        mcWindows.action = "move";
};

MCWindow.prototype.close = function() {
        document.body.removeChild(this.winElement);
        mcWindows.windows[this.name] = null;
};

MCWindow.prototype.onMouseMove = function(e) {
        var scrollX = 0;//this.doc.body.scrollLeft;
        var scrollY = 0;//this.doc.body.scrollTop;

        // Calculate real X, Y
        var dx = e.screenX - mcWindows.mouseDownScreenX;
        var dy = e.screenY - mcWindows.mouseDownScreenY;

        switch (mcWindows.action) {
                case "resize":
                        width = mcWindows.mouseDownWidth + (e.screenX - mcWindows.mouseDownScreenX);
                        height = mcWindows.mouseDownHeight + (e.screenY - mcWindows.mouseDownScreenY);

                        width = width < 100 ? 100 : width;
                        height = height < 100 ? 100 : height;

                        this.wrapperIFrameElement.style.width = width+2;
                        this.wrapperIFrameElement.style.height = height+2;
                        this.wrapperIFrameElement.width = width+2;
                        this.wrapperIFrameElement.height = height+2;
                        this.winElement.style.width = width;
                        this.winElement.style.height = height;

                        height = height-12-19;

                        this.containerElement.style.width = width;

                        this.iframeElement.style.width = width;
                        this.iframeElement.style.height = height;
                        this.bodyElement.style.width = width;
                        this.bodyElement.style.height = height;
                        this.headElement.style.width = width;
                        //this.statusElement.style.width = width;

                        mcWindows.cancelEvent(e);
                        break;

                case "move":
                        this.left = mcWindows.mouseDownLayerX + (e.screenX - mcWindows.mouseDownScreenX);
                        this.top = mcWindows.mouseDownLayerY + (e.screenY - mcWindows.mouseDownScreenY);
                        this.winElement.style.left = this.left + "px";
                        this.winElement.style.top = this.top + "px";

                        mcWindows.cancelEvent(e);
                        break;
        }
};

MCWindow.prototype.onMouseUp = function(e) {
        mcWindows.action = "none";
};

MCWindow.prototype.onFocus = function(e) {
        // Gecko only handler
        var winRef = e.currentTarget;

        for (var n in mcWindows.windows) {
                var win = mcWindows.windows[n];
                if (typeof(win) == 'function')
                        continue;

                if (winRef.name == win.id) {
                        win.focus();
                        return;
                }
        }
};

MCWindow.prototype.onMouseDown = function(e) {
        var elm = mcWindows.isMSIE ? this.wrapperFrame.event.srcElement : e.target;

        var scrollX = 0;//this.doc.body.scrollLeft;
        var scrollY = 0;//this.doc.body.scrollTop;

        mcWindows.mouseDownScreenX = e.screenX;
        mcWindows.mouseDownScreenY = e.screenY;
        mcWindows.mouseDownLayerX = this.left;
        mcWindows.mouseDownLayerY = this.top;
        mcWindows.mouseDownWidth = parseInt(this.winElement.style.width);
        mcWindows.mouseDownHeight = parseInt(this.winElement.style.height);

        if (elm == this.resizeElement.firstChild)
                this.startResize(e);
        else
                this.startMove(e);

        mcWindows.cancelEvent(e);
};

// Global instance
var mcWindows = new MCWindows();
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