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Bug 959076 - Browser toolbox inspector can pick elements from the browser UI; r=harth

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This commit is contained in:
Patrick Brosset 2014-01-15 20:43:25 +01:00
parent 57570f0640
commit b06852b6bd
1 changed files with 29 additions and 16 deletions
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45
toolkit/devtools/server/actors/highlighter.js
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@ -180,26 +180,39 @@ let HighlighterActor = protocol.ActorClass({
return this._walker.attachElement(node);
},
/**
* Get the right target for listening to mouse events while in pick mode.
* - On a firefox desktop content page: tabActor is a BrowserTabActor from
* which the browser property will give us a target we can use to listen to
* events, even in nested iframes.
* - On B2G: tabActor is a ContentAppActor which doesn't have a browser but
* since it overrides BrowserTabActor, it does get a browser property
* anyway, which points to its window object.
* - When using the Browser Toolbox (to inspect firefox desktop): tabActor is
* the RootActor, in which case, the window property can be used to listen
* to events
*/
_getPickerListenerTarget: function() {
let actor = this._tabActor;
return actor.isRootActor ? actor.window : actor.browser;
},
_startPickerListeners: function() {
// Note that on b2g devices, tabActor.browser actually returns a window
// object since the browser is in a separate process anyway.
// In any case, adding the event listener will work, although it won't
// fire for elements nested inside iframes
let browser = this._tabActor.browser;
browser.addEventListener("mousemove", this._onHovered, true);
browser.addEventListener("click", this._onPick, true);
browser.addEventListener("mousedown", this._preventContentEvent, true);
browser.addEventListener("mouseup", this._preventContentEvent, true);
browser.addEventListener("dblclick", this._preventContentEvent, true);
let target = this._getPickerListenerTarget();
target.addEventListener("mousemove", this._onHovered, true);
target.addEventListener("click", this._onPick, true);
target.addEventListener("mousedown", this._preventContentEvent, true);
target.addEventListener("mouseup", this._preventContentEvent, true);
target.addEventListener("dblclick", this._preventContentEvent, true);
},
_stopPickerListeners: function() {
let browser = this._tabActor.browser;
browser.removeEventListener("mousemove", this._onHovered, true);
browser.removeEventListener("click", this._onPick, true);
browser.removeEventListener("mousedown", this._preventContentEvent, true);
browser.removeEventListener("mouseup", this._preventContentEvent, true);
browser.removeEventListener("dblclick", this._preventContentEvent, true);
let target = this._getPickerListenerTarget();
target.removeEventListener("mousemove", this._onHovered, true);
target.removeEventListener("click", this._onPick, true);
target.removeEventListener("mousedown", this._preventContentEvent, true);
target.removeEventListener("mouseup", this._preventContentEvent, true);
target.removeEventListener("dblclick", this._preventContentEvent, true);
},
cancelPick: method(function() {