зеркало из https://github.com/mozilla/pjs.git
501 строка
16 KiB
JavaScript
501 строка
16 KiB
JavaScript
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is The JavaScript Debugger
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation
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* Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation.
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU Public License (the "GPL"), in which case the
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* provisions of the GPL are applicable instead of those above.
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* If you wish to allow use of your version of this file only
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* under the terms of the GPL and not to allow others to use your
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* version of this file under the MPL, indicate your decision by
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* deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL. If you do not delete
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* the provisions above, a recipient may use your version of this
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* file under either the MPL or the GPL.
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*
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* Contributor(s):
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* Robert Ginda, <rginda@netscape.com>, original author
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*
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*/
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function MenuManager (commandManager, menuSpecs, contextFunction, commandStr)
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{
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var menuManager = this;
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this.commandManager = commandManager;
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this.menuSpecs = menuSpecs;
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this.contextFunction = contextFunction;
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this.commandStr = commandStr;
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this.onPopupShowing =
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function mmgr_onshow (event) { return menuManager.showPopup (event); };
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this.onPopupHiding =
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function mmgr_onhide (event) { return menuManager.hidePopup (event); };
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}
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/**
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* Internal use only.
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*
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* Registers event handlers on a given menu.
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*/
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MenuManager.prototype.hookPopup =
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function mmgr_hookpop (node)
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{
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node.addEventListener ("popupshowing", this.onPopupShowing, false);
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node.addEventListener ("popuphiding", this.onPopupHiding, false);
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}
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/**
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* Internal use only.
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*
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* |showPopup| is called from the "onpopupshowing" event of menus
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* managed by the CommandManager. If a command is disabled, represents a command
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* that cannot be "satisfied" by the current command context |cx|, or has an
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* "enabledif" attribute that eval()s to false, then the menuitem is disabled.
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* In addition "checkedif" and "visibleif" attributes are eval()d and
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* acted upon accordingly.
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*/
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MenuManager.prototype.showPopup =
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function mmgr_showpop (event)
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{
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//dd ("showPopup {");
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/* returns true if the command context has the properties required to
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* execute the command associated with |menuitem|.
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*/
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function satisfied()
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{
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if (menuitem.hasAttribute("isSeparator") ||
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!menuitem.hasAttribute("commandname"))
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{
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return true;
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}
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if (!("menuManager" in cx))
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{
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dd ("no menuManager in cx");
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return false;
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}
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var name = menuitem.getAttribute("commandname");
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var commandManager = cx.menuManager.commandManager;
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var commands = commandManager.commands;
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if (!ASSERT (name in commands,
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"menu contains unknown command '" + name + "'"))
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{
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return false;
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}
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var rv = commandManager.isCommandSatisfied(cx, commands[name]);
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delete cx.parseError;
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return rv;
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};
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/* Convenience function for "enabledif", etc, attributes. */
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function has (prop)
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{
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return (prop in cx);
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};
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/* evals the attribute named |attr| on the node |node|. */
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function evalIfAttribute (node, attr)
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{
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var ex;
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var expr = node.getAttribute(attr);
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if (!expr)
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return true;
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expr = expr.replace (/\Wand\W/gi, " && ");
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try
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{
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return eval("(" + expr + ")");
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}
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catch (ex)
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{
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dd ("caught exception evaling '" + node.getAttribute("id") + "'.'" +
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attr + "'\n" + ex);
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}
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return true;
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};
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var cx;
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var popup = event.originalTarget;
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var menuitem = popup.firstChild;
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/* If the host provided a |contextFunction|, use it now. Remember the
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* return result as this.cx for use if something from this menu is actually
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* dispatched. this.cx is deleted in |hidePopup|. */
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if (typeof this.contextFunction == "function")
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{
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cx = this.cx = this.contextFunction (popup.getAttribute("menuName"),
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event);
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}
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else
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{
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cx = this.cx = { menuManager: this, originalEvent: event };
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}
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do
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{
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/* should it be visible? */
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if (menuitem.hasAttribute("visibleif"))
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{
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if (evalIfAttribute(menuitem, "visibleif"))
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menuitem.removeAttribute ("hidden");
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else
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{
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menuitem.setAttribute ("hidden", "true");
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continue;
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}
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}
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/* ok, it's visible, maybe it should be disabled? */
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if (satisfied())
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{
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if (menuitem.hasAttribute("enabledif"))
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{
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if (evalIfAttribute(menuitem, "enabledif"))
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menuitem.removeAttribute ("disabled");
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else
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menuitem.setAttribute ("disabled", "true");
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}
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else
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menuitem.removeAttribute ("disabled");
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}
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else
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{
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menuitem.setAttribute ("disabled", "true");
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}
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/* should it have a check? */
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if (menuitem.hasAttribute("checkedif"))
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{
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if (evalIfAttribute(menuitem, "checkedif"))
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menuitem.setAttribute ("checked", "true");
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else
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menuitem.removeAttribute ("checked");
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}
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} while ((menuitem = menuitem.nextSibling));
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//dd ("}");
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return true;
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}
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/**
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* Internal use only.
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*
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* |hidePopup| is called from the "onpopuphiding" event of menus
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* managed by the CommandManager. Nothing to do here anymore.
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* We used to just clean up this.cx, but that's a problem for nested
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* menus.
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*/
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MenuManager.prototype.hidePopup =
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function mmgr_hidepop (id)
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{
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return true;
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}
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/**
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* Appends a sub-menu to an existing menu.
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* @param parentNode DOM Node to insert into
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* @param beforeNode DOM Node already contained by parentNode, to insert before
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* @param id ID of the sub-menu to add.
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* @param label Text to use for this sub-menu. The & character can be
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* used to indicate the accesskey.
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* @param attribs Object containing CSS attributes to set on the element.
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*/
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MenuManager.prototype.appendSubMenu =
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function mmgr_addsmenu (parentNode, beforeNode, menuName, domId, label, attribs)
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{
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var document = parentNode.ownerDocument;
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/* sometimes the menu is already there, for overlay purposes. */
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var menu = document.getElementById(domId);
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if (!menu)
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{
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menu = document.createElement ("menu");
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menu.setAttribute ("id", domId);
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parentNode.insertBefore(menu, beforeNode);
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}
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var menupopup = menu.firstChild;
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if (!menupopup)
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{
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menupopup = document.createElement ("menupopup");
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menupopup.setAttribute ("id", domId + "-popup");
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menu.appendChild(menupopup);
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menupopup = menu.firstChild;
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}
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menupopup.setAttribute ("menuName", menuName);
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menu.setAttribute ("accesskey", getAccessKey(label));
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menu.setAttribute ("label", label.replace("&", ""));
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menu.setAttribute ("isSeparator", true);
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if (typeof attribs == "object")
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{
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for (var p in attribs)
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menu.setAttribute (p, attribs[p]);
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}
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this.hookPopup (menupopup);
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return menupopup;
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}
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/**
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* Appends a popup to an existing popupset.
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* @param parentNode DOM Node to insert into
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* @param beforeNode DOM Node already contained by parentNode, to insert before
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* @param id ID of the popup to add.
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* @param label Text to use for this popup. Popup menus don't normally have
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* labels, but we set a "label" attribute anyway, in case
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* the host wants it for some reason. Any "&" characters will
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* be stripped.
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* @param attribs Object containing CSS attributes to set on the element.
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*/
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MenuManager.prototype.appendPopupMenu =
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function mmgr_addpmenu (parentNode, beforeNode, menuName, id, label, attribs)
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{
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var document = parentNode.ownerDocument;
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var popup = document.createElement ("popup");
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popup.setAttribute ("id", id);
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if (label)
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popup.setAttribute ("label", label.replace("&", ""));
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if (typeof attribs == "object")
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{
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for (var p in attribs)
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popup.setAttribute (p, attribs[p]);
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}
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popup.setAttribute ("menuName", menuName);
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parentNode.insertBefore(popup, beforeNode);
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this.hookPopup (popup);
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return popup;
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}
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/**
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* Appends a menuitem to an existing menu or popup.
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* @param parentNode DOM Node to insert into
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* @param beforeNode DOM Node already contained by parentNode, to insert before
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* @param command A reference to the CommandRecord this menu item will represent.
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* @param attribs Object containing CSS attributes to set on the element.
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*/
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MenuManager.prototype.appendMenuItem =
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function mmgr_addmenu (parentNode, beforeNode, commandName, attribs)
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{
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var menuManager = this;
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var document = parentNode.ownerDocument;
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if (commandName == "-")
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return this.appendMenuSeparator(parentNode, beforeNode, attribs);
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var parentId = parentNode.getAttribute("id");
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if (!ASSERT(commandName in this.commandManager.commands,
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"unknown command " + commandName + " targeted for " +
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parentId))
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{
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return null;
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}
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var command = this.commandManager.commands[commandName];
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var menuitem = document.createElement ("menuitem");
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menuitem.setAttribute ("id", parentId + ":" + commandName);
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menuitem.setAttribute ("commandname", command.name);
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menuitem.setAttribute ("key", "key:" + command.name);
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menuitem.setAttribute ("accesskey", getAccessKey(command.label));
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menuitem.setAttribute ("label", command.label.replace("&", ""));
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menuitem.setAttribute ("oncommand", this.commandStr);
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if (typeof attribs == "object")
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{
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for (var p in attribs)
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menuitem.setAttribute (p, attribs[p]);
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}
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command.uiElements.push(menuitem);
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parentNode.insertBefore (menuitem, beforeNode);
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return menuitem;
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}
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/**
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* Appends a menuseparator to an existing menu or popup.
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* @param parentNode DOM Node to insert into
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* @param beforeNode DOM Node already contained by parentNode, to insert before
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* @param attribs Object containing CSS attributes to set on the element.
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*/
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MenuManager.prototype.appendMenuSeparator =
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function mmgr_addsep (parentNode, beforeNode, attribs)
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{
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var document = parentNode.ownerDocument;
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var menuitem = document.createElement ("menuseparator");
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menuitem.setAttribute ("isSeparator", true);
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if (typeof attribs == "object")
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{
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for (var p in attribs)
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menuitem.setAttribute (p, attribs[p]);
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}
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parentNode.insertBefore (menuitem, beforeNode);
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return menuitem;
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}
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/**
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* Appends a toolbaritem to an existing box element.
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* @param parentNode DOM Node to insert into
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* @param beforeNode DOM Node already contained by parentNode, to insert before
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* @param command A reference to the CommandRecord this toolbaritem will
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* represent.
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* @param attribs Object containing CSS attributes to set on the element.
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*/
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MenuManager.prototype.appendToolbarItem =
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function mmgr_addtb (parentNode, beforeNode, commandName, attribs)
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{
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if (commandName == "-")
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return this.appendToolbarSeparator(parentNode, beforeNode, attribs);
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var parentId = parentNode.getAttribute("id");
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if (!ASSERT(commandName in this.commandManager.commands,
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"unknown command " + commandName + " targeted for " +
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parentId))
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{
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return null;
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}
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var command = this.commandManager.commands[commandName];
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var document = parentNode.ownerDocument;
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var tbitem = document.createElement ("toolbarbutton");
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var id = parentNode.getAttribute("id") + ":" + commandName;
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tbitem.setAttribute ("id", id);
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tbitem.setAttribute ("class", "toolbarbutton-1");
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tbitem.setAttribute ("label", command.label.replace("&", ""));
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tbitem.setAttribute ("oncommand",
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"dispatch('" + commandName + "');");
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if (typeof attribs == "object")
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{
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for (var p in attribs)
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tbitem.setAttribute (p, attribs[p]);
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}
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command.uiElements.push(tbitem);
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parentNode.insertBefore (tbitem, beforeNode);
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return tbitem;
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}
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/**
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* Appends a toolbarseparator to an existing box.
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* @param parentNode DOM Node to insert into
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* @param beforeNode DOM Node already contained by parentNode, to insert before
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* @param attribs Object containing CSS attributes to set on the element.
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*/
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MenuManager.prototype.appendToolbarSeparator =
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function mmgr_addmenu (parentNode, beforeNode, attribs)
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{
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var document = parentNode.ownerDocument;
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var tbitem = document.createElement ("toolbarseparator");
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tbitem.setAttribute ("isSeparator", true);
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if (typeof attribs == "object")
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{
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for (var p in attribs)
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tbitem.setAttribute (p, attribs[p]);
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}
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parentNode.appendChild (tbitem);
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return tbitem;
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}
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/**
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* Creates menu DOM nodes from a menu specification.
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* @param parentNode DOM Node to insert into
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* @param beforeNode DOM Node already contained by parentNode, to insert before
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* @param menuSpec array of menu items
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*/
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MenuManager.prototype.createMenu =
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function mmgr_newmenu (parentNode, beforeNode, menuName, domId, attribs)
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{
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if (typeof domId == "undefined")
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domId = menuName;
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if (!ASSERT(menuName in this.menuSpecs, "unknown menu name " + menuName))
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return null;
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var menuSpec = this.menuSpecs[menuName];
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var subMenu = this.appendSubMenu (parentNode, beforeNode, menuName, domId,
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menuSpec.label, attribs);
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this.createMenuItems (subMenu, null, menuSpec.items);
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return subMenu;
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}
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MenuManager.prototype.createMenuItems =
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function mmgr_newitems (parentNode, beforeNode, menuItems)
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{
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function itemAttribs()
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{
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return (1 in menuItems[i]) ? menuItems[i][1] : null;
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};
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var parentId = parentNode.getAttribute("id");
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for (var i in menuItems)
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{
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var itemName = menuItems[i][0];
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if (itemName[0] == ">")
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{
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itemName = itemName.substr(1);
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if (!ASSERT(itemName in this.menuSpecs,
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"unknown submenu " + itemName + " referenced in " +
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parentId))
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{
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continue;
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}
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this.createMenu (parentNode, beforeNode, itemName,
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parentId + ":" + itemName, itemAttribs());
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}
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else if (itemName in this.commandManager.commands)
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{
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this.appendMenuItem (parentNode, beforeNode, itemName,
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itemAttribs());
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}
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else if (itemName == "-")
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{
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this.appendMenuSeparator (parentNode, beforeNode, itemAttribs());
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}
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else
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{
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dd ("unknown command " + itemName + " referenced in " + parentId);
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}
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}
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}
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