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Bug 653009 (part 1/2) - Make preventDefault on touch events compatible with WebKit [r=wesj] DONTBUILD (mobile only)

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--HG--
extra : rebase_source : bb77614e151f8491d2ebe0daaed2b1f809780b92
This commit is contained in:
Matt Brubeck 2011-04-29 17:19:45 -07:00
parent 86e603b07b
commit c55a97ac16
2 changed files with 11 additions and 4 deletions
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2
mobile/chrome/content/browser.js
View File

@ -1639,7 +1639,6 @@ const ContentTouchHandler = {
document.addEventListener("TapLong", this, false);
document.addEventListener("TapMove", this, false);
document.addEventListener("PanBegin", this, false);
document.addEventListener("PopupChanged", this, false);
document.addEventListener("CancelTouchSequence", this, false);
@ -1665,7 +1664,6 @@ const ContentTouchHandler = {
return;
switch (aEvent.type) {
case "PanBegin":
case "PopupChanged":
case "CancelTouchSequence":
this._clearPendingMessages();

13
mobile/chrome/content/content.js
View File

@ -1205,6 +1205,8 @@ ConsoleAPIObserver.init();
var TouchEventHandler = {
element: null,
isCancellable: true,
init: function() {
addMessageListener("Browser:MouseUp", this);
addMessageListener("Browser:MouseDown", this);
@ -1222,12 +1224,13 @@ var TouchEventHandler = {
switch (aMessage.name) {
case "Browser:MouseDown":
let cwu = Util.getWindowUtils(content);
this.isCancellable = true;
this.element = elementFromPoint(json.x, json.y);
cancelled = !this.sendEvent("touchstart", json, this.element);
break;
case "Browser:MouseUp":
this.isCancellable = false;
if (this.element)
this.sendEvent("touchend", json, this.element);
this.element = null;
@ -1239,9 +1242,15 @@ var TouchEventHandler = {
break;
}
if (aMessage.name != "Browser:MouseUp")
if (this.isCancellable) {
sendAsyncMessage("Browser:CaptureEvents", { messageId: json.messageId,
panning: cancelled });
// Panning can be cancelled only during the "touchstart" event and the
// first "touchmove" event. After it's cancelled, it stays cancelled
// until the next touchstart event.
if (cancelled || aMessage.name == "Browser:MouseMove")
this.isCancellable = false;
}
},
sendEvent: function(aName, aData, aElement) {