/**
 * editor_plugin_src.js
 *
 * Copyright 2009, Moxiecode Systems AB
 * Released under LGPL License.
 *
 * License: http://tinymce.moxiecode.com/license
 * Contributing: http://tinymce.moxiecode.com/contributing
 */

(function() {
    var Event = tinymce.dom.Event, each = tinymce.each, DOM = tinymce.DOM;

    /**
     * This plugin a context menu to TinyMCE editor instances.
     *
     * @class tinymce.plugins.ContextMenu
     */
    tinymce.create('tinymce.plugins.ContextMenu', {
        /**
         * Initializes the plugin, this will be executed after the plugin has been created.
         * This call is done before the editor instance has finished it's initialization so use the onInit event
         * of the editor instance to intercept that event.
         *
         * @method init
         * @param {tinymce.Editor} ed Editor instance that the plugin is initialized in.
         * @param {string} url Absolute URL to where the plugin is located.
         */
        init : function(ed) {
            var t = this, showMenu, contextmenuNeverUseNative, realCtrlKey, hideMenu;

            t.editor = ed;

            contextmenuNeverUseNative = ed.settings.contextmenu_never_use_native;

            /**
             * This event gets fired when the context menu is shown.
             *
             * @event onContextMenu
             * @param {tinymce.plugins.ContextMenu} sender Plugin instance sending the event.
             * @param {tinymce.ui.DropMenu} menu Drop down menu to fill with more items if needed.
             */
            t.onContextMenu = new tinymce.util.Dispatcher(this);

            hideMenu = function(e) {
                hide(ed, e);
            };

            showMenu = ed.onContextMenu.add(function(ed, e) {
                // Block TinyMCE menu on ctrlKey and work around Safari issue
                if ((realCtrlKey !== 0 ? realCtrlKey : e.ctrlKey) && !contextmenuNeverUseNative)
                    return;

                Event.cancel(e);

                // Select the image if it's clicked. WebKit would other wise expand the selection
                if (e.target.nodeName == 'IMG')
                    ed.selection.select(e.target);

                t._getMenu(ed).showMenu(e.clientX || e.pageX, e.clientY || e.pageY);
                Event.add(ed.getDoc(), 'click', hideMenu);

                ed.nodeChanged();
            });
            
            ed.onRemove.add(function() {
                if (t._menu)
                    t._menu.removeAll();
            });

            function hide(ed, e) {
                realCtrlKey = 0;

                // Since the contextmenu event moves
                // the selection we need to store it away
                if (e && e.button == 2) {
                    realCtrlKey = e.ctrlKey;
                    return;
                }

                if (t._menu) {
                    t._menu.removeAll();
                     t._menu.destroy();
                    Event.remove(ed.getDoc(), 'click', hideMenu);
                    t._menu = null;
                }
            };

            ed.onMouseDown.add(hide);
            ed.onKeyDown.add(hide);
            ed.onKeyDown.add(function(ed, e) {
                if (e.shiftKey && !e.ctrlKey && !e.altKey && e.keyCode === 121) {
                    Event.cancel(e);
                    showMenu(ed, e);
                }
            });
        },

        /**
         * Returns information about the plugin as a name/value array.
         * The current keys are longname, author, authorurl, infourl and version.
         *
         * @method getInfo
         * @return {Object} Name/value array containing information about the plugin.
         */
        getInfo : function() {
            return {
                longname : 'Contextmenu',
                author : 'Moxiecode Systems AB',
                authorurl : 'http://tinymce.moxiecode.com',
                infourl : 'http://wiki.moxiecode.com/index.php/TinyMCE:Plugins/contextmenu',
                version : tinymce.majorVersion + "." + tinymce.minorVersion
            };
        },

        _getMenu : function(ed) {
            var t = this, m = t._menu, se = ed.selection, col = se.isCollapsed(), el = se.getNode() || ed.getBody(), am, p;

            if (m) {
                m.removeAll();
                m.destroy();
            }

            p = DOM.getPos(ed.getContentAreaContainer());

            m = ed.controlManager.createDropMenu('contextmenu', {
                offset_x : p.x + ed.getParam('contextmenu_offset_x', 0),
                offset_y : p.y + ed.getParam('contextmenu_offset_y', 0),
                constrain : 1,
                keyboard_focus: true
            });

            t._menu = m;

            m.add({title : 'advanced.cut_desc', icon : 'cut', cmd : 'Cut'}).setDisabled(col);
            m.add({title : 'advanced.copy_desc', icon : 'copy', cmd : 'Copy'}).setDisabled(col);
            m.add({title : 'advanced.paste_desc', icon : 'paste', cmd : 'Paste'});

            if ((el.nodeName == 'A' && !ed.dom.getAttrib(el, 'name')) || !col) {
                m.addSeparator();
                m.add({title : 'advanced.link_desc', icon : 'link', cmd : ed.plugins.advlink ? 'mceAdvLink' : 'mceLink', ui : true});
                m.add({title : 'advanced.unlink_desc', icon : 'unlink', cmd : 'UnLink'});
            }

            m.addSeparator();
            m.add({title : 'advanced.image_desc', icon : 'image', cmd : ed.plugins.advimage ? 'mceAdvImage' : 'mceImage', ui : true});

            m.addSeparator();
            am = m.addMenu({title : 'contextmenu.align'});
            am.add({title : 'contextmenu.left', icon : 'justifyleft', cmd : 'JustifyLeft'});
            am.add({title : 'contextmenu.center', icon : 'justifycenter', cmd : 'JustifyCenter'});
            am.add({title : 'contextmenu.right', icon : 'justifyright', cmd : 'JustifyRight'});
            am.add({title : 'contextmenu.full', icon : 'justifyfull', cmd : 'JustifyFull'});

            t.onContextMenu.dispatch(t, m, el, col);

            return m;
        }
    });

    // Register plugin
    tinymce.PluginManager.add('contextmenu', tinymce.plugins.ContextMenu);
})();
