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Extensible Markup Language  |  2008-03-28  |  12.5 KB  |  356 lines
  1. <?xml version="1.0"?>
  2.  
  3. <bindings id="buttonBindings"
  4.    xmlns="http://www.mozilla.org/xbl"
  5.    xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
  6.    xmlns:xbl="http://www.mozilla.org/xbl">
  7.  
  8.   <binding id="button-base" extends="chrome://global/content/bindings/general.xml#basetext">
  9.     <implementation implements="nsIDOMXULButtonElement, nsIAccessibleProvider">
  10.       <property name="accessibleType" readonly="true">
  11.         <getter>
  12.           <![CDATA[
  13.             return Components.interfaces.nsIAccessibleProvider.XULButton;
  14.           ]]>
  15.         </getter>
  16.       </property>
  17.  
  18.       <property name="type"
  19.                 onget="return this.getAttribute('type');"
  20.                 onset="this.setAttribute('type', val); return val;"/>
  21.  
  22.       <property name="dlgType"
  23.                 onget="return this.getAttribute('dlgtype');"
  24.                 onset="this.setAttribute('dlgtype', val); return val;"/>
  25.  
  26.       <property name="group"
  27.                 onget="return this.getAttribute('group');"
  28.                 onset="this.setAttribute('group', val); return val;"/>
  29.  
  30.       <property name="open" onget="return this.hasAttribute('open');">
  31.         <setter><![CDATA[
  32.           if (this.boxObject instanceof
  33.               Components.interfaces.nsIMenuBoxObject) {
  34.             this.boxObject.openMenu(val);
  35.           } else {
  36.             // Fall back to just setting the attribute
  37.             if (val) {
  38.               this.setAttribute('open', 'true');
  39.             } else {
  40.               this.removeAttribute('open');
  41.             }
  42.           }
  43.           return val;
  44.         ]]></setter>
  45.       </property>
  46.  
  47.       <property name="checked" onget="return this.hasAttribute('checked');">
  48.         <setter><![CDATA[
  49.           if (this.type == "checkbox") {
  50.             this.checkState = val ? 1 : 0;
  51.           } else if (this.type == "radio" && val) {
  52.             var sibs = this.parentNode.getElementsByAttribute("group", this.group);
  53.             for (var i = 0; i < sibs.length; ++i)
  54.               sibs[i].removeAttribute("checked");
  55.           }
  56.  
  57.           if (val)
  58.             this.setAttribute("checked", "true");
  59.           else
  60.             this.removeAttribute("checked");
  61.           
  62.           return val;
  63.         ]]></setter>
  64.       </property>
  65.       
  66.       <property name="checkState">
  67.         <getter><![CDATA[
  68.           var state = this.getAttribute("checkState");
  69.           if (state == "")
  70.             return this.checked ? 1 : 0;
  71.           else
  72.             return state == "0" ? 0 : (state == "2" ? 2 : 1);
  73.         ]]></getter>
  74.         <setter><![CDATA[
  75.           this.setAttribute("checkState", val);
  76.           return val;
  77.         ]]></setter>
  78.       </property>
  79.       
  80.       <property name="autoCheck"
  81.                 onget="return this.getAttribute('autoCheck') == 'true';"
  82.                 onset="this.setAttribute('autoCheck', val); return val;"/>
  83.  
  84.       <method name ="filterButtons">
  85.         <parameter name="node"/>
  86.         <body>
  87.         <![CDATA[
  88.           if (node.localName == "button" && node.accessKey &&
  89.             !node.disabled && !node.collapsed && !node.hidden)
  90.             return NodeFilter.FILTER_ACCEPT;
  91.           return NodeFilter.FILTER_SKIP;
  92.         ]]>
  93.         </body>
  94.       </method>
  95.  
  96.       <method name="fireAccessKeyButton">
  97.         <parameter name="aSubtree"/>
  98.         <parameter name="aAccessKeyLower"/>
  99.         <body>
  100.         <![CDATA[
  101.           var iterator = aSubtree.ownerDocument.createTreeWalker(aSubtree, 
  102.                                                                  NodeFilter.SHOW_ELEMENT, 
  103.                                                                  this.filterButtons, false);
  104.           while (iterator.nextNode()) {
  105.             var test = iterator.currentNode;
  106.             if (test.accessKey.toLowerCase() == aAccessKeyLower && 
  107.                 !test.disabled && !test.collapsed && !test.hidden) {
  108.               test.focus();
  109.               test.click();
  110.               return true;
  111.             }
  112.           }
  113.           return false;
  114.         ]]>
  115.         </body>
  116.       </method>
  117.  
  118.       <method name="_handleClick">
  119.         <body>
  120.         <![CDATA[
  121.           if (!this.disabled &&
  122.               (this.autoCheck || !this.hasAttribute("autoCheck"))) {
  123.  
  124.             if (this.type == "checkbox") {
  125.               this.checked = !this.checked;
  126.             } else if (this.type == "radio") {
  127.               this.checked = true;
  128.             }
  129.           }
  130.         ]]>
  131.         </body>
  132.       </method>
  133.     </implementation>
  134.  
  135.     <handlers>
  136.       <!-- While it would seem we could do this by handling oncommand, we can't
  137.            because any external oncommand handlers might get called before ours,
  138.            and then they would see the incorrect value of checked. Additionally
  139.            a command attribute would redirect the command events anyway.-->
  140.       <handler event="click" button="0" action="this._handleClick();"/>
  141.       <handler event="keypress" key=" " action="this._handleClick();"/>
  142.  
  143.       <handler event="keypress">
  144.       <![CDATA[
  145.         if (event.keyCode == KeyEvent.DOM_VK_UP ||
  146.             (event.keyCode == KeyEvent.DOM_VK_LEFT &&
  147.               document.defaultView.getComputedStyle(this.parentNode, "")
  148.                       .direction == "ltr") ||
  149.             (event.keyCode == KeyEvent.DOM_VK_RIGHT &&
  150.               document.defaultView.getComputedStyle(this.parentNode, "")
  151.                       .direction == "rtl")) {
  152.           event.preventDefault();
  153.           window.document.commandDispatcher.rewindFocus();
  154.           return;
  155.         }
  156.  
  157.         if (event.keyCode == KeyEvent.DOM_VK_DOWN ||
  158.             (event.keyCode == KeyEvent.DOM_VK_RIGHT &&
  159.               document.defaultView.getComputedStyle(this.parentNode, "")
  160.                       .direction == "ltr") ||
  161.             (event.keyCode == KeyEvent.DOM_VK_LEFT &&
  162.               document.defaultView.getComputedStyle(this.parentNode, "")
  163.                       .direction == "rtl")) {
  164.           event.preventDefault();
  165.           window.document.commandDispatcher.advanceFocus();
  166.           return;
  167.         }
  168.  
  169.         if (event.keyCode || event.charCode <= 32 || event.altKey || 
  170.             event.ctrlKey || event.metaKey)
  171.           return;  // No printable char pressed, not a potential accesskey
  172.  
  173.         // Possible accesskey pressed
  174.         var charPressedLower = String.fromCharCode(event.charCode).toLowerCase();
  175.  
  176.         // If the accesskey of the current button is pressed, just activate it
  177.         if (this.accessKey.toLowerCase() == charPressedLower) {
  178.           this.click();
  179.           return;
  180.         }
  181.  
  182.         // Search for accesskey in the list of buttons for this doc and each subdoc
  183.         // Get the buttons for the main document and all sub-frames
  184.         for (var frameCount = -1; frameCount < window.top.frames.length; frameCount++) {
  185.           var doc = (frameCount == -1)? window.top.document: 
  186.             window.top.frames[frameCount].document
  187.           if (this.fireAccessKeyButton(doc.documentElement, charPressedLower))
  188.             return;
  189.         }
  190.  
  191.         // Test anonymous buttons
  192.         var dlg = window.top.document;
  193.         var buttonBox = dlg.getAnonymousElementByAttribute(dlg.documentElement,
  194.                                                          "anonid", "buttons");
  195.         if (buttonBox)
  196.           this.fireAccessKeyButton(buttonBox, charPressedLower);
  197.       ]]>
  198.       </handler>
  199.     </handlers>
  200.   </binding>
  201.  
  202.   <binding id="button" display="xul:button"
  203.            extends="chrome://global/content/bindings/button.xml#button-base">
  204.     <resources>
  205.       <stylesheet src="chrome://global/skin/button.css"/>
  206.     </resources>
  207.  
  208.     <content>
  209.       <children includes="observes|template|menupopup|tooltip"/>
  210.       <xul:hbox class="box-inherit button-box" xbl:inherits="align,dir,pack,orient"
  211.                 align="center" pack="center" flex="1">
  212.         <children>
  213.           <xul:image class="button-icon" xbl:inherits="src=image"/>
  214.           <xul:label class="button-text" xbl:inherits="value=label,accesskey,crop"/>
  215.         </children>
  216.       </xul:hbox>
  217.     </content>
  218.   </binding>
  219.  
  220.   <binding id="menu" display="xul:menu"
  221.            extends="chrome://global/content/bindings/button.xml#button">
  222.     <content>
  223.       <children includes="observes|template|menupopup|tooltip"/>
  224.       <xul:hbox class="box-inherit button-box" xbl:inherits="align,dir,pack,orient"
  225.                 align="center" pack="center" flex="1">
  226.         <children>
  227.           <xul:hbox class="box-inherit" xbl:inherits="align,dir,pack,orient"
  228.                     align="center" pack="center" flex="1">
  229.             <xul:image class="button-icon" xbl:inherits="src=image"/>
  230.             <xul:label class="button-text" xbl:inherits="value=label,accesskey,crop"/>
  231.           </xul:hbox>
  232.           <xul:dropmarker class="button-menu-dropmarker" xbl:inherits="open,disabled,label"/>
  233.         </children>
  234.       </xul:hbox>
  235.     </content>
  236.  
  237.     <handlers>
  238.       <handler event="keypress" keycode="VK_RETURN" action="this.open = true;"/>
  239.       <handler event="keypress" key=" " action="this.open = true;"/>
  240.     </handlers>
  241.   </binding>
  242.  
  243.   <binding id="menu-button-base"
  244.            extends="chrome://global/content/bindings/button.xml#button-base">
  245.     <implementation implements="nsIDOMEventListener">
  246.       <constructor>
  247.         this.init();
  248.       </constructor>
  249.       
  250.       <method name="init">
  251.         <body>
  252.         <![CDATA[
  253.           var btn = document.getAnonymousElementByAttribute(this, "anonid", "button");
  254.           if (!btn)
  255.             throw "XBL binding for <button type=\"menu-button\"/> binding must contain an element with anonid=\"button\"";
  256.           
  257.           var menubuttonParent = this;
  258.           btn.addEventListener("mouseover", function() { 
  259.             if (!this.disabled)
  260.               menubuttonParent.buttonover = true;
  261.           }, true);
  262.           btn.addEventListener("mouseout", function() {
  263.             menubuttonParent.buttonover = false;
  264.           }, true);
  265.           btn.addEventListener("mousedown", function() {
  266.             if (!this.disabled) {
  267.               menubuttonParent.buttondown = true;
  268.               document.addEventListener("mouseup", menubuttonParent, true);
  269.             }
  270.           }, true);
  271.         ]]>
  272.         </body>
  273.       </method>
  274.       
  275.       <property name="buttonover" onget="return this.getAttribute('buttonover');">
  276.         <setter>
  277.         <![CDATA[
  278.           var v = val || val == "true";
  279.           if (!v && this.buttondown) { 
  280.             this.buttondown = false;
  281.             this._pendingActive = true;
  282.           } 
  283.           else {
  284.             if (this._pendingActive) {
  285.               this.buttondown = true;
  286.               this._pendingActive = false;
  287.             }
  288.           }
  289.  
  290.           if (v)
  291.             this.setAttribute("buttonover", "true");
  292.           else
  293.             this.removeAttribute("buttonover");
  294.           return val;
  295.         ]]>
  296.         </setter>
  297.       </property>
  298.       
  299.       <property name="buttondown" onget="return this.getAttribute('buttondown') == 'true';">
  300.         <setter>
  301.         <![CDATA[
  302.           if (val || val == "true")
  303.             this.setAttribute("buttondown", "true");
  304.           else
  305.             this.removeAttribute("buttondown");
  306.           return val;
  307.         ]]>
  308.         </setter>
  309.       </property>
  310.       
  311.       <field name="_pendingActive">false</field>
  312.  
  313.       <method name="handleEvent">
  314.         <parameter name="aEvent"/>
  315.         <body>
  316.         <![CDATA[
  317.           this._pendingActive = false;
  318.           this.buttondown = false;
  319.           document.removeEventListener("mouseup", this, true);
  320.         ]]>
  321.         </body>
  322.       </method>
  323.  
  324.     </implementation>
  325.   </binding>
  326.  
  327.   <binding id="menu-button" display="xul:menu"
  328.            extends="chrome://global/content/bindings/button.xml#menu-button-base">
  329.     <resources>
  330.       <stylesheet src="chrome://global/skin/button.css"/>
  331.     </resources>
  332.  
  333.     <content>
  334.       <children includes="observes|template|menupopup|tooltip"/>
  335.       <xul:button class="box-inherit button-menubutton-button"
  336.                   anonid="button" flex="1" allowevents="true"
  337.                   xbl:inherits="disabled,crop,image,label,accessKey,command,
  338.                                 buttonover,buttondown,align,dir,pack,orient">
  339.         <children/>
  340.       </xul:button>
  341.       <xul:dropmarker class="button-menubutton-dropmarker" xbl:inherits="open,disabled,label"/>
  342.     </content>
  343.   </binding>
  344.   
  345.   <binding id="button-image" display="xul:button"
  346.            extends="chrome://global/content/bindings/button.xml#button">
  347.     <content>
  348.       <xul:image class="button-image-icon" xbl:inherits="src=image"/>
  349.     </content>
  350.   </binding>
  351.  
  352.   <binding id="button-repeat" display="xul:autorepeatbutton"
  353.            extends="chrome://global/content/bindings/button.xml#button"/>
  354.   
  355. </bindings>
  356.