8150 2006-04-03 00:15:21 -0700 Click is registered only if mouse pointer is fully stationary while mouse button is down (except for link and button) 2023-10-21 03:30:24 -0700 1 1 1 Unclassified WebKit DOM 420+ Mac OS X 10.4 NEW P2 Normal --- 1 aapo-bugzilla webkit-unassigned ahmad.saleem792 a_protyasha grahamperrin ian oldest_to_newest 38369 0 aapo-bugzilla 2006-04-03 00:15:21 -0700 The click event handler attached to an element such as a table cell or a paragraph will fire only if the mouse pointer remains perfectly stationary while the mouse button is held down. However, click event handlers attached to links and buttons are fired even if the mouse moves a bit while the button is down. It is very easy to move the mouse a couple of pixels while clicking. Not having any allowance at all makes Safari seem unresponsive. All elements should have at least some degree of allowance in regards to detecting clicks. For consistency, it might be best if they were very liberal in this regard, like buttons. Strictly speaking the current behaviour is according to the standards: "A click is defined as a mousedown and mouseup over the same screen location." http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-eventgroupings-mouseevents However, it is clear that being overly strict here is bad for usability and accessibility, not to mention inconsistent. Mozilla and Opera have thus chosen ignore this bit. The workaround is to simulate the click event with mousedown and mouseup. Tested in nightly that was downloaded on 2006-04-03. Attaching a test case. 38370 1 7480 aapo-bugzilla 2006-04-03 00:15:57 -0700 Created attachment 7480 Test case 41003 2 ap 2006-05-03 06:29:31 -0700 Yes, onclick is called in Mozilla an WinIE as long as mousedown and mouseup are in the same object, regardless of how much the mouse pointer has moved. Of course, they don't agree on what to do with drag&drop or when the two objects have parent-child relationship. 32498 3 darin 2007-01-26 09:35:29 -0800 The patch for bug 12133 resolved part of this problem. We should make a layout test so it doesn't regress, and fix the third case cited in this bug too. 1986664 4 ahmad.saleem792 2023-10-21 03:30:24 -0700 I am able to click all three and also few pixels away before releasing mouse. @Alexey - Is it reproducible to you? CCing - Abrar as well, since he is recently doing lot of work on event handling. 7480 2006-04-03 00:15:57 -0700 2006-04-03 00:15:57 -0700 Test case StrictClick01.html text/html 1456 aapo-bugzilla PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMDEgVHJhbnNpdGlvbmFs Ly9FTiI+CjxodG1sPgo8aGVhZD4KICA8dGl0bGU+U2FmYXJpIGNsaWNrIGV2ZW50IHByb2JsZW08 L3RpdGxlPgo8L2hlYWQ+Cjxib2R5PgoKPGgxPlNhZmFyaSBjbGljayBldmVudCBwcm9ibGVtPC9o MT4KCjxwPkNsaWNrIGVhY2ggb2YgdGhlIGZvbGxvd2luZyBlbGVtZW50cyB0byBhZHZhbmNlIHRo ZSB2YWx1ZSBpbiB0aGVpciBjYXB0aW9uIGJ5IG9uZTo8L3A+Cgo8Zm9ybSBhY3Rpb249IiIgbWV0 aG9kPSJnZXQiPgoKPHA+PGEgaHJlZj0iIyIgc3R5bGU9ImRpc3BsYXkgOiBibG9jazsgd2lkdGgg OiAxNTBweDsgYmFja2dyb3VuZCA6ICNlZWU7IiBvbmNsaWNrPSJ0aGlzLmZpcnN0Q2hpbGQubm9k ZXZhbHVlID0gdGhpcy5maXJzdENoaWxkLm5vZGVWYWx1ZSsrOyByZXR1cm4gZmFsc2U7Ij4xPC9h PjwvcD4KCjxwPjxidXR0b24gc3R5bGU9IndpZHRoIDogMTUwcHg7IiBvbmNsaWNrPSJ0aGlzLmZp cnN0Q2hpbGQubm9kZXZhbHVlID0gdGhpcy5maXJzdENoaWxkLm5vZGVWYWx1ZSsrOyByZXR1cm4g ZmFsc2U7Ij4xPC9idXR0b24+PC9wPgoKPHAgc3R5bGU9ImJhY2tncm91bmQgOiAjZWVlOyB3aWR0 aCA6IDE1MHB4OyIgb25jbGljaz0idGhpcy5maXJzdENoaWxkLm5vZGV2YWx1ZSA9IHRoaXMuZmly c3RDaGlsZC5ub2RlVmFsdWUrKzsgcmV0dXJuIGZhbHNlOyI+MTwvcD4KCjwvZm9ybT4KCjxwPk5v dywgaW5zdGVhZCBvZiBhIHN0cmFpZ2h0IGNsaWNrLCB0cnkgbW92aW5nIHRoZSBtb3VzZSBhIGZl dyBwaXhlbHMgYmVmb3JlIHJlbGVhc2luZyB0aGUgYnV0dG9uLiBZb3UgY2FuIHNlZSB0aGF0IHRo ZSBsaW5rIHJlc3BvbmRzIGlmIHRoZSBtb3VzZSB3YXNuJ3QgbW92ZWQgZW5vdWdoIHRvIGluaXRp YXRlIGEgZHJhZywgYW5kIHRoYXQgdGhlIGJ1dHRvbiByZXNwb25kcyBpZiB0aGUgbW91c2Ugd2Fz bid0IG1vdmVkIG91dHNpZGUgdGhlIGJ1dHRvbi4gSG93ZXZlciwgdGhlIGxhc3QgZWxlbWVudCwg cGFyYWdyYXBoLCBvbmx5IHJlc3BvbmRzIGlmIHRoZSBtb3VzZSB3YXNuJ3QgbW92ZWQgYXQgYWxs LjwvcD4KCjxwPk5vdCBoYXZpbmcgYW55IGFsbG93YW5jZSBpbiBkZXRlY3RpbmcgYSBjbGljayBv biBzb21lIGVsZW1lbnRzIG1ha2VzIFNhZmFyaSBzZWVtIHVucmVzcG9uc2l2ZSB0byBwZW9wbGUg d2hvIHVzZSBoaWdoIG1vdXNlIGFjY2VsZXJhdGlvbiByYXRlIG9yIHdobyBhcmUgb3RoZXJ3aXNl IHR3aXRjaHkgd2l0aCB0aGUgbW91c2UuPC9wPgoKPHA+VGhlIHdlYiBkZXZlbG9wZXIgY2FuIHdv cmsgYXJvdW5kIHRoaXMgcHJvYmxlbSBieSBzaW11bGF0aW5nIG9uY2xpY2sgd2l0aCBvbm1vdXNl b3ZlciBhbmQgb25tb3VzZW91dCwgYnV0IHRoaXMgaXMgYmFkIGZvciBjb25zaXN0ZW5jeSBiZXR3 ZWVuIHNpdGVzLjwvcD4KCjwvYm9keT4KPC9odG1sPg==