Bug 1356663 - Calculate the status panel's mouse target rectangle lazily in getMouseTargetRect. r?florian
MozReview-Commit-ID: 1g07rylDWkx
--- a/browser/base/content/tabbrowser.xml
+++ b/browser/base/content/tabbrowser.xml
@@ -7704,32 +7704,35 @@
this.style.minWidth = this.getAttribute("type") == "status" &&
this.getAttribute("previoustype") == "status"
? getComputedStyle(this).width : "";
if (val) {
this.setAttribute("label", val);
this.removeAttribute("inactive");
- this._calcMouseTargetRect();
+ this._mouseTargetRect = null;
MousePosTracker.addListener(this);
} else {
this.setAttribute("inactive", "true");
MousePosTracker.removeListener(this);
}
return val;
]]></setter>
<getter>
return this.hasAttribute("inactive") ? "" : this.getAttribute("label");
</getter>
</property>
<method name="getMouseTargetRect">
<body><![CDATA[
+ if (!this._mouseTargetRect) {
+ this._calcMouseTargetRect();
+ }
return this._mouseTargetRect;
]]></body>
</method>
<method name="onMouseEnter">
<body>
this._mirror();
</body>
@@ -7744,17 +7747,17 @@
<method name="handleEvent">
<parameter name="event"/>
<body><![CDATA[
if (!this.label)
return;
switch (event.type) {
case "resize":
- this._calcMouseTargetRect();
+ this._mouseTargetRect = null;
break;
}
]]></body>
</method>
<method name="_calcMouseTargetRect">
<body><