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/**
 * Popup.js
 *
 * Copyright, Moxiecode Systems AB
 * Released under LGPL License.
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

// Some global instances
var tinymce = null, tinyMCEPopup, tinyMCE;

/**
 * TinyMCE popup/dialog helper class. This gives you easy access to the
 * parent editor instance and a bunch of other things. It's higly recommended
 * that you load this script into your dialogs.
 *
 * @static
 * @class tinyMCEPopup
 */
tinyMCEPopup = {
        /**
         * Initializes the popup this will be called automatically.
         *
         * @method init
         */
        init : function() {
                var t = this, w, ti, settings;

                // Find window & API
                w = t.getWin();
                tinymce = w.tinymce;
                tinyMCE = w.tinyMCE;
                t.editor = tinymce.EditorManager.activeEditor;
                t.params = t.editor.windowManager.params;
                t.features = t.editor.windowManager.features;
                settings = t.editor.settings;

                // Setup popup CSS path(s)
                if (settings.popup_css !== false) {
                        if (settings.popup_css) {
                                settings.popup_css = t.documentBaseURI.toAbsolute(settings.popup_css);
                        } else {
                                settings.popup_css = t.baseURI.toAbsolute("themes/" + settings.theme + "/skins/" + settings.skin + "/dialog.css");
                        }
                }

                if (settings.popup_css_add) {
                        settings.popup_css += ',' + t.documentBaseURI.toAbsolute(settings.popup_css_add);
                }

                // Setup local DOM
                t.dom = t.editor.windowManager.createInstance('tinymce.dom.DOMUtils', document, {ownEvents: true, proxy: tinyMCEPopup._eventProxy});
                t.dom.bind(window, 'ready', t._onDOMLoaded, t);

                // Enables you to skip loading the default css
                if (t.features.popup_css !== false)
                        t.dom.loadCSS(t.features.popup_css || t.editor.settings.popup_css);

                // Setup on init listeners
                t.listeners = [];

                /**
                 * Fires when the popup is initialized.
                 *
                 * @event onInit
                 * @param {tinymce.Editor} editor Editor instance.
                 * @example
                 * // Alerts the selected contents when the dialog is loaded
                 * tinyMCEPopup.onInit.add(function(ed) {
                 *     alert(ed.selection.getContent());
                 * });
                 * 
                 * // Executes the init method on page load in some object using the SomeObject scope
                 * tinyMCEPopup.onInit.add(SomeObject.init, SomeObject);
                 */
                t.onInit = {
                        add : function(f, s) {
                                t.listeners.push({func : f, scope : s});
                        }
                };

                t.isWindow = !t.getWindowArg('mce_inline');
                t.id = t.getWindowArg('mce_window_id');
        },

        /**
         * Returns the reference to the parent window that opened the dialog.
         *
         * @method getWin
         * @return {Window} Reference to the parent window that opened the dialog.
         */
        getWin : function() {
                // Added frameElement check to fix bug: #2817583
                return (!window.frameElement && window.dialogArguments) || opener || parent || top;
        },

        /**
         * Returns a window argument/parameter by name.
         *
         * @method getWindowArg
         * @param {String} n Name of the window argument to retrive.
         * @param {String} dv Optional default value to return.
         * @return {String} Argument value or default value if it wasn't found.
         */
        getWindowArg : function(n, dv) {
                var v = this.params[n];

                return tinymce.is(v) ? v : dv;
        },

        /**
         * Returns a editor parameter/config option value.
         *
         * @method getParam
         * @param {String} n Name of the editor config option to retrive.
         * @param {String} dv Optional default value to return.
         * @return {String} Parameter value or default value if it wasn't found.
         */
        getParam : function(n, dv) {
                return this.editor.getParam(n, dv);
        },

        /**
         * Returns a language item by key.
         *
         * @method getLang
         * @param {String} n Language item like mydialog.something.
         * @param {String} dv Optional default value to return.
         * @return {String} Language value for the item like "my string" or the default value if it wasn't found.
         */
        getLang : function(n, dv) {
                return this.editor.getLang(n, dv);
        },

        /**
         * Executed a command on editor that opened the dialog/popup.
         *
         * @method execCommand
         * @param {String} cmd Command to execute.
         * @param {Boolean} ui Optional boolean value if the UI for the command should be presented or not.
         * @param {Object} val Optional value to pass with the comman like an URL.
         * @param {Object} a Optional arguments object.
         */
        execCommand : function(cmd, ui, val, a) {
                a = a || {};
                a.skip_focus = 1;

                this.restoreSelection();
                return this.editor.execCommand(cmd, ui, val, a);
        },

        /**
         * Resizes the dialog to the inner size of the window. This is needed since various browsers
         * have different border sizes on windows.
         *
         * @method resizeToInnerSize
         */
        resizeToInnerSize : function() {
                var t = this;

                // Detach it to workaround a Chrome specific bug
                // https://sourceforge.net/tracker/?func=detail&atid=635682&aid=2926339&group_id=103281
                setTimeout(function() {
                        var vp = t.dom.getViewPort(window);

                        t.editor.windowManager.resizeBy(
                                t.getWindowArg('mce_width') - vp.w,
                                t.getWindowArg('mce_height') - vp.h,
                                t.id || window
                        );
                }, 10);
        },

        /**
         * Will executed the specified string when the page has been loaded. This function
         * was added for compatibility with the 2.x branch.
         *
         * @method executeOnLoad
         * @param {String} s String to evalutate on init.
         */
        executeOnLoad : function(s) {
                this.onInit.add(function() {
                        eval(s);
                });
        },

        /**
         * Stores the current editor selection for later restoration. This can be useful since some browsers
         * looses it's selection if a control element is selected/focused inside the dialogs.
         *
         * @method storeSelection
         */
        storeSelection : function() {
                this.editor.windowManager.bookmark = tinyMCEPopup.editor.selection.getBookmark(1);
        },

        /**
         * Restores any stored selection. This can be useful since some browsers
         * looses it's selection if a control element is selected/focused inside the dialogs.
         *
         * @method restoreSelection
         */
        restoreSelection : function() {
                var t = tinyMCEPopup;

                if (!t.isWindow && tinymce.isIE)
                        t.editor.selection.moveToBookmark(t.editor.windowManager.bookmark);
        },

        /**
         * Loads a specific dialog language pack. If you pass in plugin_url as a arugment
         * when you open the window it will load the <plugin url>/langs/<code>_dlg.js lang pack file.
         *
         * @method requireLangPack
         */
        requireLangPack : function() {
                var t = this, u = t.getWindowArg('plugin_url') || t.getWindowArg('theme_url');

                if (u && t.editor.settings.language && t.features.translate_i18n !== false && t.editor.settings.language_load !== false) {
                        u += '/langs/' + t.editor.settings.language + '_dlg.js';

                        if (!tinymce.ScriptLoader.isDone(u)) {
                                document.write('<script type="text/javascript" src="' + u + '"></script>');
                                tinymce.ScriptLoader.markDone(u);
                        }
                }
        },

        /**
         * Executes a color picker on the specified element id. When the user
         * then selects a color it will be set as the value of the specified element.
         *
         * @method pickColor
         * @param {DOMEvent} e DOM event object.
         * @param {string} element_id Element id to be filled with the color value from the picker.
         */
        pickColor : function(e, element_id) {
                this.execCommand('mceColorPicker', true, {
                        color : document.getElementById(element_id).value,
                        func : function(c) {
                                document.getElementById(element_id).value = c;

                                try {
                                        document.getElementById(element_id).onchange();
                                } catch (ex) {
                                        // Try fire event, ignore errors
                                }
                        }
                });
        },

        /**
         * Opens a filebrowser/imagebrowser this will set the output value from
         * the browser as a value on the specified element.
         *
         * @method openBrowser
         * @param {string} element_id Id of the element to set value in.
         * @param {string} type Type of browser to open image/file/flash.
         * @param {string} option Option name to get the file_broswer_callback function name from.
         */
        openBrowser : function(element_id, type, option) {
                tinyMCEPopup.restoreSelection();
                this.editor.execCallback('file_browser_callback', element_id, document.getElementById(element_id).value, type, window);
        },

        /**
         * Creates a confirm dialog. Please don't use the blocking behavior of this
         * native version use the callback method instead then it can be extended.
         *
         * @method confirm
         * @param {String} t Title for the new confirm dialog.
         * @param {function} cb Callback function to be executed after the user has selected ok or cancel.
         * @param {Object} s Optional scope to execute the callback in.
         */
        confirm : function(t, cb, s) {
                this.editor.windowManager.confirm(t, cb, s, window);
        },

        /**
         * Creates a alert dialog. Please don't use the blocking behavior of this
         * native version use the callback method instead then it can be extended.
         *
         * @method alert
         * @param {String} t Title for the new alert dialog.
         * @param {function} cb Callback function to be executed after the user has selected ok.
         * @param {Object} s Optional scope to execute the callback in.
         */
        alert : function(tx, cb, s) {
                this.editor.windowManager.alert(tx, cb, s, window);
        },

        /**
         * Closes the current window.
         *
         * @method close
         */
        close : function() {
                var t = this;

                // To avoid domain relaxing issue in Opera
                function close() {
                        t.editor.windowManager.close(window);
                        tinymce = tinyMCE = t.editor = t.params = t.dom = t.dom.doc = null; // Cleanup
                };

                if (tinymce.isOpera)
                        t.getWin().setTimeout(close, 0);
                else
                        close();
        },

        // Internal functions   

        _restoreSelection : function() {
                var e = window.event.srcElement;

                if (e.nodeName == 'INPUT' && (e.type == 'submit' || e.type == 'button'))
                        tinyMCEPopup.restoreSelection();
        },

/*      _restoreSelection : function() {
                var e = window.event.srcElement;

                // If user focus a non text input or textarea
                if ((e.nodeName != 'INPUT' && e.nodeName != 'TEXTAREA') || e.type != 'text')
                        tinyMCEPopup.restoreSelection();
        },*/

        _onDOMLoaded : function() {
                var t = tinyMCEPopup, ti = document.title, bm, h, nv;

                // Translate page
                if (t.features.translate_i18n !== false) {
                        h = document.body.innerHTML;

                        // Replace a=x with a="x" in IE
                        if (tinymce.isIE)
                                h = h.replace(/ (value|title|alt)=([^"][^\s>]+)/gi, ' $1="$2"')

                        document.dir = t.editor.getParam('directionality','');

                        if ((nv = t.editor.translate(h)) && nv != h)
                                document.body.innerHTML = nv;

                        if ((nv = t.editor.translate(ti)) && nv != ti)
                                document.title = ti = nv;
                }

                if (!t.editor.getParam('browser_preferred_colors', false) || !t.isWindow)
                        t.dom.addClass(document.body, 'forceColors');

                document.body.style.display = '';

                // Restore selection in IE when focus is placed on a non textarea or input element of the type text
                if (tinymce.isIE) {
                        document.attachEvent('onmouseup', tinyMCEPopup._restoreSelection);

                        // Add base target element for it since it would fail with modal dialogs
                        t.dom.add(t.dom.select('head')[0], 'base', {target : '_self'});
                }

                t.restoreSelection();
                t.resizeToInnerSize();

                // Set inline title
                if (!t.isWindow)
                        t.editor.windowManager.setTitle(window, ti);
                else
                        window.focus();

                if (!tinymce.isIE && !t.isWindow) {
                        t.dom.bind(document, 'focus', function() {
                                t.editor.windowManager.focus(t.id);
                        });
                }

                // Patch for accessibility
                tinymce.each(t.dom.select('select'), function(e) {
                        e.onkeydown = tinyMCEPopup._accessHandler;
                });

                // Call onInit
                // Init must be called before focus so the selection won't get lost by the focus call
                tinymce.each(t.listeners, function(o) {
                        o.func.call(o.scope, t.editor);
                });

                // Move focus to window
                if (t.getWindowArg('mce_auto_focus', true)) {
                        window.focus();

                        // Focus element with mceFocus class
                        tinymce.each(document.forms, function(f) {
                                tinymce.each(f.elements, function(e) {
                                        if (t.dom.hasClass(e, 'mceFocus') && !e.disabled) {
                                                e.focus();
                                                return false; // Break loop
                                        }
                                });
                        });
                }

                document.onkeyup = tinyMCEPopup._closeWinKeyHandler;
        },

        _accessHandler : function(e) {
                e = e || window.event;

                if (e.keyCode == 13 || e.keyCode == 32) {
                        var elm = e.target || e.srcElement;

                        if (elm.onchange)
                                elm.onchange();

                        return tinymce.dom.Event.cancel(e);
                }
        },

        _closeWinKeyHandler : function(e) {
                e = e || window.event;

                if (e.keyCode == 27)
                        tinyMCEPopup.close();
        },

        _eventProxy: function(id) {
                return function(evt) {
                        tinyMCEPopup.dom.events.callNativeHandler(id, evt);
                };
        }
};

tinyMCEPopup.init();