mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-16 20:40:11 +01:00
312 lines
11 KiB
XML
312 lines
11 KiB
XML
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<?xml version="1.0"?>
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<!DOCTYPE bindings [
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<!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd">
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%globalDTD;
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]>
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<bindings id="arrowscrollboxBindings"
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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:xbl="http://www.mozilla.org/xbl">
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<binding id="scrollbox-base" extends="chrome://global/content/bindings/general.xml#basecontrol">
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<resources>
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<stylesheet src="chrome://global/skin/scrollbox.css"/>
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</resources>
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</binding>
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<binding id="scrollbox" extends="chrome://global/content/bindings/scrollbox.xml#scrollbox-base">
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<content>
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<xul:box class="box-inherit scrollbox-innerbox" xbl:inherits="orient,align,pack,dir" flex="1">
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<children/>
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</xul:box>
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</content>
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</binding>
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<binding id="arrowscrollbox" extends="chrome://global/content/bindings/scrollbox.xml#scrollbox-base">
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<content>
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<xul:autorepeatbutton class="autorepeatbutton-up"
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anonid="scrollbutton-up"
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collapsed="true"
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xbl:inherits="orient"
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oncommand="scrollByPixels(this.parentNode.scrollIncrement * -1); event.stopPropagation();"/>
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<xul:scrollbox xbl:inherits="orient,align,pack,dir" flex="1" anonid="scrollbox">
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<children/>
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</xul:scrollbox>
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<xul:autorepeatbutton class="autorepeatbutton-down"
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anonid="scrollbutton-down"
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collapsed="true"
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xbl:inherits="orient"
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oncommand="scrollByPixels(this.parentNode.scrollIncrement); event.stopPropagation();"/>
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</content>
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<implementation>
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<field name="_scrollbox">
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document.getAnonymousElementByAttribute(this, "anonid", "scrollbox");
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</field>
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<field name="_scrollButtonUp">
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document.getAnonymousElementByAttribute(this, "anonid", "scrollbutton-up");
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</field>
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<field name="_scrollButtonDown">
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document.getAnonymousElementByAttribute(this, "anonid", "scrollbutton-down");
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</field>
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<field name="_scrollIncrement">20</field>
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<property name="scrollIncrement" readonly="true">
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<getter><![CDATA[
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if (!this._scrollIncrement) {
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var pb2 =
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Components.classes['@mozilla.org/preferences-service;1']
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.getService(Components.interfaces.nsIPrefBranch2);
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try {
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this._scrollIncrement = pb2.getIntPref("toolkit.scrollbox.scrollIncrement");
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}
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catch (ex) {
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}
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}
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return this._scrollIncrement;
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]]></getter>
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</property>
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<field name="_scrollBoxObject">null</field>
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<property name="scrollBoxObject" readonly="true">
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<getter><![CDATA[
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if (!this._scrollBoxObject) {
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this._scrollBoxObject =
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this._scrollbox.boxObject
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.QueryInterface(Components.interfaces.nsIScrollBoxObject);
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}
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return this._scrollBoxObject;
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]]></getter>
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</property>
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<field name="_isLTRScrollbox">
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window.getComputedStyle(this._scrollbox, "").direction == "ltr";
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</field>
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<method name="ensureElementIsVisible">
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<parameter name="aElement"/>
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<body><![CDATA[
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this.scrollBoxObject.ensureElementIsVisible(aElement);
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]]></body>
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</method>
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<method name="scrollByIndex">
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<parameter name="lines"/>
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<body><![CDATA[
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this.scrollBoxObject.scrollByIndex(lines);
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]]></body>
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</method>
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<method name="scrollByPixels">
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<parameter name="px"/>
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<body><![CDATA[
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if (this.getAttribute("orient") == "horizontal") {
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// if not ltr, we want to scroll the other direction
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var actualPx = this._isLTRScrollbox ? px : (-1 * px);
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this.scrollBoxObject.scrollBy(actualPx, 0);
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}
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else
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this.scrollBoxObject.scrollBy(0, px);
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]]></body>
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</method>
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<method name="_updateScrollButtonsDisabledState">
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<body><![CDATA[
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var disableUpButton = false;
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var disableDownButton = false;
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if (this.getAttribute("orient") == "horizontal") {
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var width = { };
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this.scrollBoxObject.getScrolledSize(width, {});
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var xPos = { }
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this.scrollBoxObject.getPosition(xPos, {});
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if (xPos.value == 0) {
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// In the RTL case, this means the _last_ element in the
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// scrollbox is visible
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if (this._isLTRScrollbox)
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disableUpButton = true;
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else
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disableDownButton = true;
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}
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else if (this._scrollbox.boxObject.width + xPos.value == width.value) {
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// In the RTL case, this means the _first_ element in the
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// scrollbox is visible
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if (this._isLTRScrollbox)
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disableDownButton = true;
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else
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disableUpButton = true;
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}
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}
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else { // vertical scrollbox
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var height = { };
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this.scrollBoxObject.getScrolledSize({}, height);
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var yPos = { }
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this.scrollBoxObject.getPosition({}, yPos);
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if (yPos.value == 0)
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disableUpButton = true;
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else if (this._scrollbox.boxObject.height + yPos.value == height.value)
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disableDownButton = true;
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}
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this._scrollButtonUp.disabled = disableUpButton;
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this._scrollButtonDown.disabled = disableDownButton;
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var event = document.createEvent("Events");
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event.initEvent("UpdatedScrollButtonsDisabledState", true, false);
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this.dispatchEvent(event);
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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="DOMMouseScroll" action="this.scrollByIndex(event.detail); event.stopPropagation();"/>
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<handler event="underflow"><![CDATA[
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// filter underflow events which were dispatched on nested scrollboxes
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if (event.target != this)
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return;
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this._scrollButtonUp.collapsed = true;
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this._scrollButtonDown.collapsed = true;
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try {
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// See bug 341047 and comments in overflow handler as to why
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// try..catch is needed here
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var childNodes = document.getAnonymousNodes(this._scrollbox);
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if (childNodes && childNodes.length) {
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if (childNodes.length > 0)
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this.ensureElementIsVisible(childNodes[0]);
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}
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}
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catch(e) {
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this._scrollButtonUp.collapsed = false;
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this._scrollButtonDown.collapsed = false;
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}
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]]></handler>
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<handler event="overflow"><![CDATA[
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// filter underflow events which were dispatched on nested scrollboxes
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if (event.target != this)
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return;
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this._scrollButtonUp.collapsed = false;
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this._scrollButtonDown.collapsed = false;
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try {
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// See bug 341047, the overflow event is dispatched when the
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// scrollbox already is mostly destroyed. This causes some code in
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// _updateScrollButtonsDisabledState() to throw an error. It also
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// means that the scrollbarbuttons were uncollapsed when that should
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// not be happening, because the whole overflow event should not be
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// happening in that case.
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this._updateScrollButtonsDisabledState();
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}
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catch(e) {
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this._scrollButtonUp.collapsed = true;
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this._scrollButtonDown.collapsed = true;
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}
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]]></handler>
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<handler event="scroll" action="this._updateScrollButtonsDisabledState()"/>
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</handlers>
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</binding>
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<binding id="autorepeatbutton" extends="chrome://global/content/bindings/scrollbox.xml#scrollbox-base">
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<content chromedir="&locale.dir;">
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<xul:image class="autorepeatbutton-icon"/>
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</content>
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</binding>
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<binding id="arrowscrollbox-clicktoscroll" extends="chrome://global/content/bindings/scrollbox.xml#arrowscrollbox">
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<content>
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<xul:toolbarbutton class="scrollbutton-up" collapsed="true"
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xbl:inherits="orient"
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anonid="scrollbutton-up"
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onmousedown="_startScroll(-1);"
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onmouseup="_stopScroll();"
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onmouseout="_stopScroll();"
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chromedir="&locale.dir;"/>
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<xul:scrollbox xbl:inherits="orient,align,pack,dir" flex="1" anonid="scrollbox">
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<children/>
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</xul:scrollbox>
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<xul:toolbarbutton class="scrollbutton-down" collapsed="true"
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xbl:inherits="orient"
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anonid="scrollbutton-down"
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onmousedown="_startScroll(1);"
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onmouseup="_stopScroll();"
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onmouseout="_stopScroll();"
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chromedir="&locale.dir;"/>
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</content>
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<implementation implements="nsITimerCallback">
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<constructor><![CDATA[
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var pb2 =
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Components.classes['@mozilla.org/preferences-service;1']
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.getService(Components.interfaces.nsIPrefBranch2);
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try {
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this._scrollDelay = pb2.getIntPref("toolkit.scrollbox.clickToScroll.scrollDelay");
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}
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catch (ex) {
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}
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]]></constructor>
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<destructor><![CDATA[
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// Release timer to avoid reference cycles.
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if (this._scrollTimer) {
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this._scrollTimer.cancel();
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this._scrollTimer = null;
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}
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]]></destructor>
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<field name="_scrollTimer">null</field>
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<field name="_scrollLines">0</field>
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<field name="_scrollDelay">150</field>
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<method name="notify">
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<parameter name="aTimer"/>
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<body>
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<![CDATA[
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if (!document)
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aTimer.cancel();
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this.scrollByIndex(this._scrollLines);
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]]>
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</body>
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</method>
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<method name="_setUpScrollTimer">
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<body>
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<![CDATA[
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if (!this._scrollTimer)
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this._scrollTimer =
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Components.classes["@mozilla.org/timer;1"]
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.createInstance(Components.interfaces.nsITimer);
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else
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this._scrollTimer.cancel();
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this._scrollTimer.initWithCallback(this,
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this._scrollDelay,
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Components.interfaces.nsITimer.TYPE_REPEATING_SLACK);
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]]>
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</body>
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</method>
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<method name="_startScroll">
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<parameter name="aScrollLines"/>
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<body><![CDATA[
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this._scrollLines = aScrollLines;
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this.scrollByIndex(this._scrollLines);
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this._setUpScrollTimer();
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]]></body>
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</method>
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<method name="_stopScroll">
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<body><![CDATA[
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if (this._scrollTimer)
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this._scrollTimer.cancel();
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]]></body>
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</method>
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</implementation>
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</binding>
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</bindings>
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