forked from mirrors/gecko-dev
7653ddaefd
Chrome behaves like this: 1. When user starts autoscroll with a middle click, `mousedown` and `mouseup` are fired, but `auxclick` nor `paste` event is not fired. 2. When user ends autoscroll with a left click, only `mouseup` event is fired. I.e, `mousedown` nor `click` event is not fired. 3. When user ends autoscroll with a middle click, only `mouseup` event is fired. I.e., `mousedown`, `auxclick` nor `paste` events is not fired. 4. When user ends autoscroll with a right click, `mouseup` and `contextmenu` events are fired, but `mousedown` and `auxclick` events are not fired. This patch emulates these Chrome's behavior as far as possible. However, unfortunately, we cannot do exactly same behavior without some big patches because each widget (`nsWindow` or `nsChildView`) discards a mouse event which rolled up a widget before dispatching it into the DOM. Therefore, for now, this patch does not fix the following issues: 1. `mousedown` event is not fired in content when clicking outside the autoscroller to close it except when pressing the secondary button or on any buttons on Linux. 2. `mouseup` event is not fired in content when clicking outside the autoscroller to close it except when pressing the primary button macOS. 3. `click` event and `auxclick` events are fired when clicking outside the autoscroller with the secondary button. So, the middle button `click`/`auxclick` events and `paste` event which is reported to the bug won't be fired with this patch. I'll file follow up bugs. Differential Revision: https://phabricator.services.mozilla.com/D104652
126 lines
5 KiB
Text
126 lines
5 KiB
Text
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* For more information on this interface please see
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* http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html
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* https://drafts.csswg.org/cssom-view/#extensions-to-the-mouseevent-interface
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*
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* Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
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* liability, trademark and document use rules apply.
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*/
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[Exposed=Window]
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interface MouseEvent : UIEvent {
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constructor(DOMString typeArg,
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optional MouseEventInit mouseEventInitDict = {});
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[NeedsCallerType]
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readonly attribute long screenX;
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[NeedsCallerType]
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readonly attribute long screenY;
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readonly attribute long pageX;
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readonly attribute long pageY;
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readonly attribute long clientX;
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readonly attribute long clientY;
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[BinaryName="clientX"]
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readonly attribute long x;
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[BinaryName="clientY"]
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readonly attribute long y;
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readonly attribute long offsetX;
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readonly attribute long offsetY;
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readonly attribute boolean ctrlKey;
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readonly attribute boolean shiftKey;
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readonly attribute boolean altKey;
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readonly attribute boolean metaKey;
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readonly attribute short button;
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readonly attribute unsigned short buttons;
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readonly attribute EventTarget? relatedTarget;
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readonly attribute DOMString? region;
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// Pointer Lock
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readonly attribute long movementX;
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readonly attribute long movementY;
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// Deprecated in DOM Level 3:
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void initMouseEvent(DOMString typeArg,
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optional boolean canBubbleArg = false,
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optional boolean cancelableArg = false,
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optional Window? viewArg = null,
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optional long detailArg = 0,
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optional long screenXArg = 0,
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optional long screenYArg = 0,
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optional long clientXArg = 0,
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optional long clientYArg = 0,
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optional boolean ctrlKeyArg = false,
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optional boolean altKeyArg = false,
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optional boolean shiftKeyArg = false,
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optional boolean metaKeyArg = false,
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optional short buttonArg = 0,
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optional EventTarget? relatedTargetArg = null);
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// Introduced in DOM Level 3:
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boolean getModifierState(DOMString keyArg);
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};
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// Suggested initMouseEvent replacement initializer:
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dictionary MouseEventInit : EventModifierInit {
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// Attributes for MouseEvent:
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long screenX = 0;
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long screenY = 0;
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long clientX = 0;
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long clientY = 0;
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short button = 0;
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// Note: "buttons" was not previously initializable through initMouseEvent!
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unsigned short buttons = 0;
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EventTarget? relatedTarget = null;
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// Pointer Lock
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long movementX = 0;
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long movementY = 0;
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};
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// Mozilla extensions
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partial interface MouseEvent
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{
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// Finger or touch pressure event value
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// ranges between 0.0 and 1.0
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[Deprecated="MouseEvent_MozPressure"]
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readonly attribute float mozPressure;
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const unsigned short MOZ_SOURCE_UNKNOWN = 0;
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const unsigned short MOZ_SOURCE_MOUSE = 1;
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const unsigned short MOZ_SOURCE_PEN = 2;
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const unsigned short MOZ_SOURCE_ERASER = 3;
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const unsigned short MOZ_SOURCE_CURSOR = 4;
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const unsigned short MOZ_SOURCE_TOUCH = 5;
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const unsigned short MOZ_SOURCE_KEYBOARD = 6;
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readonly attribute unsigned short mozInputSource;
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void initNSMouseEvent(DOMString typeArg,
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optional boolean canBubbleArg = false,
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optional boolean cancelableArg = false,
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optional Window? viewArg = null,
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optional long detailArg = 0,
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optional long screenXArg = 0,
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optional long screenYArg = 0,
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optional long clientXArg = 0,
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optional long clientYArg = 0,
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optional boolean ctrlKeyArg = false,
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optional boolean altKeyArg = false,
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optional boolean shiftKeyArg = false,
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optional boolean metaKeyArg = false,
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optional short buttonArg = 0,
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optional EventTarget? relatedTargetArg = null,
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optional float pressure = 0,
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optional unsigned short inputSourceArg = 0);
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/**
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* preventClickEvent() prevents the following "click", "auxclick" and
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* "dblclick" events of "mousedown" and "mouseup" events.
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*/
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[ChromeOnly]
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void preventClickEvent();
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};
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