зеркало из https://github.com/mozilla/gecko-dev.git
353 строки
13 KiB
XML
353 строки
13 KiB
XML
<?xml version="1.0"?>
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<!-- This Source Code Form is subject to the terms of the Mozilla Public
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- License, v. 2.0. If a copy of the MPL was not distributed with this
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- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
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<bindings id="textBindings"
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xmlns="http://www.mozilla.org/xbl"
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xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
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xmlns:html="http://www.w3.org/1999/xhtml">
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<binding id="label-control">
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<content>
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<children/><html:span anonid="accessKeyParens"></html:span>
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</content>
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<implementation>
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<constructor>
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<![CDATA[
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this.formatAccessKey(true);
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]]>
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</constructor>
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<method name="formatAccessKey">
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<parameter name="firstTime"/>
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<body>
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<![CDATA[
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var control = this.labeledControlElement;
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if (!control) {
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var bindingParent = document.getBindingParent(this);
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if ("accessKey" in bindingParent) {
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control = bindingParent; // For controls that make the <label> an anon child
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}
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}
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if (control) {
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control.labelElement = this;
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var controlAccessKey = control.getAttribute("accesskey");
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if (controlAccessKey) {
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this.setAttribute("accesskey", controlAccessKey);
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}
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}
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var accessKey = this.accessKey;
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// No need to remove existing formatting the first time.
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if (firstTime && !accessKey)
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return;
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if (this.mInsertSeparator === undefined) {
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try {
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var prefs = Cc["@mozilla.org/preferences-service;1"].
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getService(Ci.nsIPrefBranch);
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this.mUnderlineAccesskey = (prefs.getIntPref("ui.key.menuAccessKey") != 0);
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const nsIPrefLocalizedString =
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Ci.nsIPrefLocalizedString;
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const prefNameInsertSeparator =
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"intl.menuitems.insertseparatorbeforeaccesskeys";
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const prefNameAlwaysAppendAccessKey =
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"intl.menuitems.alwaysappendaccesskeys";
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var val = prefs.getComplexValue(prefNameInsertSeparator,
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nsIPrefLocalizedString).data;
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this.mInsertSeparator = (val == "true");
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val = prefs.getComplexValue(prefNameAlwaysAppendAccessKey,
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nsIPrefLocalizedString).data;
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this.mAlwaysAppendAccessKey = (val == "true");
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} catch (e) {
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this.mInsertSeparator = true;
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}
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}
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if (!this.mUnderlineAccesskey)
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return;
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var afterLabel = document.getAnonymousElementByAttribute(this, "anonid", "accessKeyParens");
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afterLabel.textContent = "";
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var oldAccessKey = this.getElementsByAttribute("class", "accesskey").item(0);
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if (oldAccessKey) { // Clear old accesskey
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this.mergeElement(oldAccessKey);
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}
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var oldHiddenSpan =
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this.getElementsByAttribute("class", "hiddenColon").item(0);
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if (oldHiddenSpan) {
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this.mergeElement(oldHiddenSpan);
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}
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var labelText = this.textContent;
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if (!accessKey || !labelText || !control) {
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return;
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}
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var accessKeyIndex = -1;
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if (!this.mAlwaysAppendAccessKey) {
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accessKeyIndex = labelText.indexOf(accessKey);
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if (accessKeyIndex < 0) { // Try again in upper case
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accessKeyIndex =
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labelText.toUpperCase().indexOf(accessKey.toUpperCase());
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}
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} else if (labelText.endsWith(`(${accessKey.toUpperCase()})`)) {
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accessKeyIndex = labelText.length - (1 + accessKey.length); // = index of accessKey.
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}
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const HTML_NS = "http://www.w3.org/1999/xhtml";
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var span = document.createElementNS(HTML_NS, "span");
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span.className = "accesskey";
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// Note that if you change the following code, see the comment of
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// nsTextBoxFrame::UpdateAccessTitle.
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// If accesskey is not in string, append in parentheses
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if (accessKeyIndex < 0) {
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// If end is colon, we should insert before colon.
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// i.e., "label:" -> "label(X):"
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var colonHidden = false;
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if (/:$/.test(labelText)) {
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labelText = labelText.slice(0, -1);
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var hiddenSpan = document.createElementNS(HTML_NS, "span");
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hiddenSpan.className = "hiddenColon";
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hiddenSpan.style.display = "none";
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// Hide the last colon by using span element.
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// I.e., label<span style="display:none;">:</span>
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this.wrapChar(hiddenSpan, labelText.length);
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colonHidden = true;
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}
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// If end is space(U+20),
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// we should not add space before parentheses.
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var endIsSpace = false;
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if (/ $/.test(labelText)) {
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endIsSpace = true;
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}
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if (this.mInsertSeparator && !endIsSpace)
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afterLabel.textContent = " (";
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else
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afterLabel.textContent = "(";
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span.textContent = accessKey.toUpperCase();
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afterLabel.appendChild(span);
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if (!colonHidden)
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afterLabel.appendChild(document.createTextNode(")"));
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else
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afterLabel.appendChild(document.createTextNode("):"));
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return;
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}
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this.wrapChar(span, accessKeyIndex);
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]]>
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</body>
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</method>
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<method name="wrapChar">
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<parameter name="element"/>
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<parameter name="index"/>
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<body>
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<![CDATA[
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var treeWalker = document.createTreeWalker(this,
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NodeFilter.SHOW_TEXT,
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null);
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var node = treeWalker.nextNode();
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while (index >= node.length) {
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index -= node.length;
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node = treeWalker.nextNode();
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}
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if (index) {
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node = node.splitText(index);
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}
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node.parentNode.insertBefore(element, node);
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if (node.length > 1) {
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node.splitText(1);
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}
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element.appendChild(node);
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]]>
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</body>
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</method>
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<method name="mergeElement">
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<parameter name="element"/>
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<body>
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<![CDATA[
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if (element.previousSibling instanceof Text) {
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element.previousSibling.appendData(element.textContent);
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} else {
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element.parentNode.insertBefore(element.firstChild, element);
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}
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element.remove();
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]]>
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</body>
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</method>
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<field name="mUnderlineAccesskey">
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!/Mac/.test(navigator.platform)
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</field>
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<field name="mInsertSeparator"/>
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<field name="mAlwaysAppendAccessKey">false</field>
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<property name="accessKey">
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<getter>
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<![CDATA[
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var accessKey = this.getAttribute("accesskey");
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return accessKey ? accessKey[0] : null;
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]]>
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</getter>
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<setter>
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<![CDATA[
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// If this label already has an accesskey attribute store it here as well
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if (this.hasAttribute("accesskey")) {
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this.setAttribute("accesskey", val);
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}
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var control = this.labeledControlElement;
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if (control) {
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control.setAttribute("accesskey", val);
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}
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this.formatAccessKey(false);
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return val;
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]]>
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</setter>
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</property>
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<property name="labeledControlElement" readonly="true"
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onget="var control = this.control; return control ? document.getElementById(control) : null;" />
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<property name="control" onget="return this.getAttribute('control');">
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<setter>
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<![CDATA[
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var control = this.labeledControlElement;
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if (control) {
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control.labelElement = null; // No longer pointed to be this label
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}
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this.setAttribute("control", val);
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this.formatAccessKey(false);
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return val;
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]]>
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</setter>
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</property>
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</implementation>
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<handlers>
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<handler event="click"><![CDATA[
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if (this.disabled) {
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return;
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}
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var controlElement = this.labeledControlElement;
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if (!controlElement) {
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return;
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}
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controlElement.focus();
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const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
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if (controlElement.namespaceURI != XUL_NS) {
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return;
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}
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if (controlElement.localName == "checkbox") {
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controlElement.checked = !controlElement.checked;
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} else if (controlElement.localName == "radio") {
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controlElement.control.selectedItem = controlElement;
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}
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]]></handler>
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</handlers>
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</binding>
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<binding id="text-link">
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<implementation>
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<property name="href" onget="return this.getAttribute('href');"
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onset="this.setAttribute('href', val); return val;" />
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<method name="open">
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<parameter name="aEvent"/>
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<body>
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<![CDATA[
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var href = this.href;
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if (!href || this.disabled || aEvent.defaultPrevented)
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return;
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var uri = null;
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try {
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const nsISSM = Ci.nsIScriptSecurityManager;
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const secMan =
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Cc["@mozilla.org/scriptsecuritymanager;1"]
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.getService(nsISSM);
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const ioService =
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Cc["@mozilla.org/network/io-service;1"]
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.getService(Ci.nsIIOService);
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uri = ioService.newURI(href);
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let principal;
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if (this.getAttribute("useoriginprincipal") == "true") {
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principal = this.nodePrincipal;
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} else {
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principal = secMan.createNullPrincipal({});
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}
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try {
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secMan.checkLoadURIWithPrincipal(principal, uri,
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nsISSM.DISALLOW_INHERIT_PRINCIPAL);
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} catch (ex) {
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var msg = "Error: Cannot open a " + uri.scheme + ": link using \
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the text-link binding.";
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Cu.reportError(msg);
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return;
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}
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const cID = "@mozilla.org/uriloader/external-protocol-service;1";
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const nsIEPS = Ci.nsIExternalProtocolService;
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var protocolSvc = Cc[cID].getService(nsIEPS);
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// if the scheme is not an exposed protocol, then opening this link
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// should be deferred to the system's external protocol handler
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if (!protocolSvc.isExposedProtocol(uri.scheme)) {
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protocolSvc.loadURI(uri);
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aEvent.preventDefault();
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return;
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}
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} catch (ex) {
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Cu.reportError(ex);
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}
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aEvent.preventDefault();
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href = uri ? uri.spec : href;
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// Try handing off the link to the host application, e.g. for
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// opening it in a tabbed browser.
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var linkHandled = Cc["@mozilla.org/supports-PRBool;1"]
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.createInstance(Ci.nsISupportsPRBool);
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linkHandled.data = false;
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let {shiftKey, ctrlKey, metaKey, altKey, button} = aEvent;
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let data = {shiftKey, ctrlKey, metaKey, altKey, button, href};
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Cc["@mozilla.org/observer-service;1"]
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.getService(Ci.nsIObserverService)
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.notifyObservers(linkHandled, "handle-xul-text-link", JSON.stringify(data));
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if (linkHandled.data)
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return;
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// otherwise, fall back to opening the anchor directly
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var win = window;
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if (window.isChromeWindow) {
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while (win.opener && !win.opener.closed)
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win = win.opener;
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}
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win.open(href);
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]]>
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</body>
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</method>
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</implementation>
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<handlers>
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<handler event="click" phase="capturing" button="0" action="this.open(event)"/>
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<handler event="click" phase="capturing" button="1" action="this.open(event)"/>
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<handler event="keypress" preventdefault="true" keycode="VK_RETURN" action="this.click()" />
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</handlers>
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</binding>
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</bindings>
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