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Bug 357951: Double clicking on the tab overflow scroll buttons should scroll by the width of the tab bar. p=Dao Gottwald <dao@design-noir.de> r=enndeakin

This commit is contained in:
dtownsend@oxymoronical.com 2007-08-26 02:17:54 -07:00
Родитель ff682a76cc
Коммит 7fdcb2b07c
2 изменённых файлов: 67 добавлений и 1 удалений
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2
browser/base/content/tabbrowser.xml
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@ -2500,6 +2500,7 @@
<xul:toolbarbutton class="scrollbutton-up" collapsed="true"
xbl:inherits="orient"
anonid="scrollbutton-up"
onclick="_distanceScroll(event);"
onmousedown="_startScroll(-1);"
onmouseover="_continueScroll(-1);"
onmouseup="_stopScroll();"
@ -2516,6 +2517,7 @@
<xul:toolbarbutton class="scrollbutton-down" collapsed="true"
xbl:inherits="orient"
anonid="scrollbutton-down"
onclick="_distanceScroll(event);"
onmousedown="_startScroll(1);"
onmouseover="_continueScroll(1);"
onmouseup="_stopScroll();"

66
toolkit/content/widgets/scrollbox.xml
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@ -64,7 +64,6 @@
</property>
<field name="_scrollIncrement">null</field>
<property name="scrollIncrement" readonly="true">
<getter><![CDATA[
if (this._scrollIncrement === null) {
@ -406,6 +405,7 @@
<xul:toolbarbutton class="scrollbutton-up" collapsed="true"
xbl:inherits="orient"
anonid="scrollbutton-up"
onclick="_distanceScroll(event);"
onmousedown="_startScroll(-1);"
onmouseover="_continueScroll(-1);"
onmouseup="_stopScroll();"
@ -417,6 +417,7 @@
<xul:toolbarbutton class="scrollbutton-down" collapsed="true"
xbl:inherits="orient"
anonid="scrollbutton-down"
onclick="_distanceScroll(event);"
onmousedown="_startScroll(1);"
onmouseover="_continueScroll(1);"
onmouseup="_stopScroll();"
@ -524,6 +525,69 @@
]]></body>
</method>
<method name="_distanceScroll">
<parameter name="aEvent"/>
<body><![CDATA[
if (this.getAttribute("orient") == "vertical" ||
aEvent.detail < 2 || aEvent.detail > 3)
return;
var scrollLeft = (aEvent.originalTarget == this._scrollButtonUp);
if (!this._isLTRScrollbox)
scrollLeft = !scrollLeft;
var targetElement;
var elements = this.hasChildNodes() ?
this.childNodes :
document.getBindingParent(this).childNodes;
if (aEvent.detail == 2) {
// scroll by the width of the scrollbox; make sure that the next
// partly-offscreen element will become fully visible.
var scrollBox = this.scrollBoxObject;
var edge = scrollBox.screenX;
if (scrollLeft) {
for (var i = 0; targetElement = elements[i]; i++) {
var x = targetElement.boxObject.screenX;
if (x < edge &&
x + targetElement.boxObject.width + 1 >= edge)
break;
}
if (!targetElement)
return;
edge = targetElement.boxObject.screenX +
targetElement.boxObject.width - scrollBox.width;
while ((targetElement = targetElement.previousSibling))
if (targetElement.boxObject.screenX < edge)
break;
if (targetElement)
targetElement = targetElement.nextSibling;
} else {
edge += scrollBox.width;
for (var i = 0; targetElement = elements[i]; i++) {
var x = targetElement.boxObject.screenX;
if (x <= edge &&
x + targetElement.boxObject.width > edge)
break;
}
if (!targetElement)
return;
edge = targetElement.boxObject.screenX + scrollBox.width;
while ((targetElement = targetElement.nextSibling))
if (targetElement.boxObject.screenX + targetElement.boxObject.width > edge)
break;
if (targetElement)
targetElement = targetElement.previousSibling;
}
}
if (!targetElement)
// scroll to the first resp. last element
targetElement = scrollLeft ? elements[0] : elements[elements.length - 1];
this.ensureElementIsVisible(targetElement);
]]></body>
</method>
</implementation>
</binding>
</bindings>