mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
841 lines
24 KiB
JavaScript
841 lines
24 KiB
JavaScript
// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; js2-strict-trailing-comma-warning: nil -*-
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/*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Mobile Browser.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2008, 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Stuart Parmenter <stuart@mozilla.com>
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* Brad Lassey <blassey@mozilla.com>
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* Mark Finkle <mfinkle@mozilla.com>
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* Gavin Sharp <gavin.sharp@gmail.com>
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* Ben Combee <combee@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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function getScrollboxFromElement(elem) {
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// check element for scrollable interface, if not found check parent until we get to root
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let scrollbox = null;
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while (elem.parentNode) {
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try {
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if ("scrollBoxObject" in elem && elem.scrollBoxObject) {
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scrollbox = elem.scrollBoxObject;
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break;
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}
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else {
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scrollbox = elem.boxObject.QueryInterface(Ci.nsIScrollBoxObject);
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break;
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}
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}
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catch (e) {
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// an exception is OK, we just don't want to propogate it
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}
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elem = elem.parentNode;
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}
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return scrollbox;
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}
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/**
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* Everything that is registed in _modules gets called with each event that the
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* InputHandler is registered to listen for.
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*
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* When one of the handlers decides it wants to handle the event, it should call
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* grab() on its owner which will cause it to receive all of the events until it
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* calls ungrab(). Calling grab will notify the other handlers via a
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* cancelPending() notification. This tells them to stop what they're doing and
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* give up hope for being the one to process the events.
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*/
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function InputHandler() {
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/* used to stop everything if mouse leaves window on desktop */
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window.addEventListener("mouseout", this, true);
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let stack = document.getElementById("browser-container");
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stack.addEventListener("DOMMouseScroll", this, true);
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/* these handle dragging of both chrome elements and content */
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//stack.addEventListener("mouseout", this, true);
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stack.addEventListener("mousedown", this, true);
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stack.addEventListener("mouseup", this, true);
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stack.addEventListener("mousemove", this, true);
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stack.addEventListener("click", this, true);
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let browserCanvas = document.getElementById("browser-canvas");
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browserCanvas.addEventListener("keydown", this, true);
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browserCanvas.addEventListener("keyup", this, true);
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let prefsvc = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch2);
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let allowKinetic = prefsvc.getBoolPref("browser.ui.panning.kinetic");
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this._modules.push(new ChromeInputModule(this, browserCanvas));
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this._modules.push(new ContentPanningModule(this, browserCanvas, allowKinetic));
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this._modules.push(new ContentClickingModule(this));
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this._modules.push(new ScrollwheelModule(this));
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}
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InputHandler.prototype = {
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_modules : [],
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_grabbed : null,
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_ignoreEvents: false,
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grab: function grab(obj) {
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this._grabbed = obj;
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for each(mod in this._modules) {
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if (mod != obj)
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mod.cancelPending();
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}
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// only send events to this object
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// call cancel on all modules
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},
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ungrab: function ungrab(obj) {
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this._grabbed = null;
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},
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startListening: function startListening() {
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this._ignoreEvents = false;
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},
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stopListening: function stopListening() {
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this._ignoreEvents = true;
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},
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handleEvent: function handleEvent(aEvent) {
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if (this._ignoreEvents)
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return;
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// relatedTarget should only be NULL if we move out of window
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// if so, ungrab and reset everything. We don't always get
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// mouseout events if the mouse movement causes other window
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// activity, but this catches many of the cases
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if (aEvent.type == "mouseout" && !aEvent.relatedTarget) {
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this.grab(null);
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return;
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}
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if (this._grabbed) {
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this._grabbed.handleEvent(aEvent);
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}
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else {
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for each(mod in this._modules) {
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mod.handleEvent(aEvent);
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// if event got grabbed, don't pass to other handlers
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if (this._grabbed)
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break;
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}
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}
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}
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};
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/**
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* Panning code for chrome elements
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*/
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function ChromeInputModule(owner, browserCanvas, useKinetic) {
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this._owner = owner;
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if (useKinetic !== undefined)
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this._dragData.useKinetic = useKinetic;
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this._browserCanvas = browserCanvas;
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}
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ChromeInputModule.prototype = {
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_owner: null,
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_ignoreNextClick: false,
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_dragData: {
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dragging: false,
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sX: 0,
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sY: 0,
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dragStartTimeout: -1,
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targetScrollbox: null,
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reset: function reset() {
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this.dragging = false;
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this.sX = 0;
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this.sY = 0;
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if (this.dragStartTimeout != -1)
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clearTimeout(this.dragStartTimeout);
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this.dragStartTimeout = -1;
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this.targetScrollbox = null;
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}
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},
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_clickData: {
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_events : [],
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reset: function reset() {
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this._events = [];
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}
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},
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handleEvent: function handleEvent(aEvent) {
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switch (aEvent.type) {
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case "mousedown":
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this._onMouseDown(aEvent);
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break;
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case "mousemove":
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this._onMouseMove(aEvent);
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break;
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case "mouseup":
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this._onMouseUp(aEvent);
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break;
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case "click":
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if (this._ignoreNextClick) {
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aEvent.stopPropagation();
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aEvent.preventDefault();
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this._ignoreNextClick = false;
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}
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break;
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}
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},
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/* If someone else grabs events ahead of us, cancel any pending
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* timeouts we may have.
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*/
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cancelPending: function cancelPending() {
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this._dragData.reset();
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},
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_dragStart: function _dragStart(sX, sY) {
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let dragData = this._dragData;
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dragData.dragging = true;
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dragData.dragStartTimeout = -1;
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// grab all events until we stop the drag
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ws.dragStart(sX, sY);
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// prevent clicks from being sent once we start drag
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this._clickData.reset();
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},
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_dragStop: function _dragStop(sX, sY) {
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let dragData = this._dragData;
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if (dragData.targetScrollbox)
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dragData.targetScrollbox.scrollBy(dragData.sX - sX, dragData.sY - sY);
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},
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_dragMove: function _dragMove(sX, sY) {
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let dragData = this._dragData;
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if (dragData.targetScrollbox)
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dragData.targetScrollbox.scrollBy(dragData.sX - sX, dragData.sY - sY);
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},
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_onMouseDown: function _onMouseDown(aEvent) {
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// exit early for events in the content area
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if (aEvent.target === this._browserCanvas) {
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return;
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}
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let dragData = this._dragData;
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dragData.targetScrollbox = getScrollboxFromElement(aEvent.target);
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if (!dragData.targetScrollbox)
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return;
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// absorb the event for the scrollable XUL element and make all future events grabbed too
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this._owner.grab(this);
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aEvent.stopPropagation();
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aEvent.preventDefault();
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dragData.sX = aEvent.screenX;
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dragData.sY = aEvent.screenY;
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dragData.dragStartTimeout = setTimeout(function(self, sX, sY) { self._dragStart(sX, sY); },
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200, this, aEvent.screenX, aEvent.screenY);
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// store away the event for possible sending later if a drag doesn't happen
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let clickData = this._clickData;
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let clickEvent = document.createEvent("MouseEvent");
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clickEvent.initMouseEvent(aEvent.type, aEvent.bubbles, aEvent.cancelable,
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aEvent.view, aEvent.detail,
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aEvent.screenX, aEvent.screenY, aEvent.clientX, aEvent.clientY,
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aEvent.ctrlKey, aEvent.altKey, aEvent.shiftKeyArg, aEvent.metaKeyArg,
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aEvent.button, aEvent.relatedTarget);
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clickData._events.push({event: clickEvent, target: aEvent.target, time: Date.now()});
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},
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_onMouseUp: function _onMouseUp(aEvent) {
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// only process if original mousedown was on a scrollable element
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let dragData = this._dragData;
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if (!dragData.targetScrollbox)
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return;
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let clickData = this._clickData;
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// keep an eye out for mouseups that didn't start with a mousedown
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if (!(clickData._events.length % 2)) {
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clickData.reset();
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}
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else {
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let clickEvent = document.createEvent("MouseEvent");
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clickEvent.initMouseEvent(aEvent.type, aEvent.bubbles, aEvent.cancelable,
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aEvent.view, aEvent.detail,
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aEvent.screenX, aEvent.screenY, aEvent.clientX, aEvent.clientY,
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aEvent.ctrlKey, aEvent.altKey, aEvent.shiftKeyArg, aEvent.metaKeyArg,
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aEvent.button, aEvent.relatedTarget);
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clickData._events.push({event: clickEvent, target: aEvent.target, time: Date.now()});
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this._ignoreNextClick = true;
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this._sendSingleClick();
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}
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aEvent.stopPropagation();
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aEvent.preventDefault();
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if (dragData.dragging)
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this._dragStop(aEvent.screenX, aEvent.screenY);
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dragData.reset(); // be sure to reset the timer
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this._owner.ungrab(this);
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},
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_onMouseMove: function _onMouseMove(aEvent) {
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let dragData = this._dragData;
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// only process if original mousedown was on a scrollable element
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if (!dragData.targetScrollbox)
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return;
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aEvent.stopPropagation();
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aEvent.preventDefault();
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let dx = dragData.sX - aEvent.screenX;
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let dy = dragData.sY - aEvent.screenY;
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if (!dragData.dragging && dragData.dragStartTimeout != -1) {
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if (dx*dx + dy*dy > 100) {
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clearTimeout(dragData.dragStartTimeout);
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this._dragStart(aEvent.screenX, aEvent.screenY);
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}
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}
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if (!dragData.dragging)
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return;
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this._dragMove(aEvent.screenX, aEvent.screenY);
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dragData.sX = aEvent.screenX;
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dragData.sY = aEvent.screenY;
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},
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// resend original events with our handler out of the loop
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_sendSingleClick: function _sendSingleClick() {
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let clickData = this._clickData;
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this._owner.grab(this);
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this._owner.stopListening();
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// send original mouseDown/mouseUps again
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this._redispatchChromeMouseEvent(clickData._events[0].event);
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this._redispatchChromeMouseEvent(clickData._events[1].event);
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this._owner.startListening();
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this._owner.ungrab(this);
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clickData.reset();
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},
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_redispatchChromeMouseEvent: function _redispatchChromeMouseEvent(aEvent) {
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if (!(aEvent instanceof MouseEvent)) {
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Cu.reportError("_redispatchChromeMouseEvent called with a non-mouse event");
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return;
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}
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var cwu = window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
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// Redispatch the mouse event, ignoring the root scroll frame
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cwu.sendMouseEvent(aEvent.type, aEvent.clientX, aEvent.clientY,
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aEvent.button, aEvent.detail, 0, true);
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}
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};
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/**
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* Kinetic panning code for content
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*/
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function ContentPanningModule(owner, browserCanvas, useKinetic) {
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this._owner = owner;
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if (useKinetic !== undefined)
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this._dragData.useKinetic = useKinetic;
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this._browserCanvas = browserCanvas;
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}
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ContentPanningModule.prototype = {
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_owner: null,
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_dragData: {
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dragging: false,
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sX: 0,
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sY: 0,
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useKinetic: true,
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dragStartTimeout: -1,
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reset: function reset() {
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this.dragging = false;
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this.sX = 0;
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this.sY = 0;
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if (this.dragStartTimeout != -1)
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clearTimeout(this.dragStartTimeout);
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this.dragStartTimeout = -1;
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}
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},
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_kineticData: {
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// const
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kineticStepSize: 15,
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kineticDecelloration: 0.004,
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momentumBufferSize: 3,
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momentumBuffer: [],
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momentumBufferIndex: 0,
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lastTime: 0,
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kineticDuration: 0,
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kineticDirX: 0,
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kineticDirY: 0,
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kineticHandle : -1,
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kineticStep : 0,
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kineticStartX : 0,
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kineticStartY : 0,
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kineticInitialVel: 0,
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reset: function reset() {
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if (this.kineticHandle != -1) {
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window.clearInterval(this.kineticHandle);
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this.kineticHandle = -1;
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}
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this.momentumBuffer = [];
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this.momentumBufferIndex = 0;
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this.lastTime = 0;
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this.kineticDuration = 0;
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this.kineticDirX = 0;
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this.kineticDirY = 0;
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this.kineticStep = 0;
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this.kineticStartX = 0;
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this.kineticStartY = 0;
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this.kineticInitialVel = 0;
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}
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},
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handleEvent: function handleEvent(aEvent) {
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// exit early for events outside displayed content area
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if (aEvent.target !== this._browserCanvas)
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return;
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switch (aEvent.type) {
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case "mousedown":
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this._onMouseDown(aEvent);
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break;
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case "mousemove":
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this._onMouseMove(aEvent);
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break;
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case "mouseup":
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this._onMouseUp(aEvent);
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break;
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}
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},
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/* If someone else grabs events ahead of us, cancel any pending
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* timeouts we may have.
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*/
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cancelPending: function cancelPending() {
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this._dragData.reset();
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// XXX we should cancel kinetic here as well
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},
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_dragStart: function _dragStart(sX, sY) {
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let dragData = this._dragData;
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dragData.dragging = true;
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dragData.dragStartTimeout = -1;
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// grab all events until we stop the drag
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this._owner.grab(this);
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ws.dragStart(sX, sY);
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Browser.canvasBrowser.startPanning();
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// set the kinetic start time
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this._kineticData.lastTime = Date.now();
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},
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_dragStop: function _dragStop(sX, sY) {
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let dragData = this._dragData;
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this._owner.ungrab(this);
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if (dragData.useKinetic) {
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// start kinetic scrolling here for canvas only
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if (!this._startKinetic(sX, sY))
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this._endKinetic(sX, sY);
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}
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else {
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ws.dragStop(sX, sY);
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}
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// flush any paints that might be left so that our next pan will be fast
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Browser.canvasBrowser.endPanning();
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},
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_dragMove: function _dragMove(sX, sY) {
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let dragData = this._dragData;
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ws.dragMove(sX, sY);
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},
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_onMouseDown: function _onMouseDown(aEvent) {
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// if we're in the process of kineticly scrolling, stop and start over
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if (this._kineticData.kineticHandle != -1)
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this._endKinetic(aEvent.screenX, aEvent.screenY);
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let dragData = this._dragData;
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dragData.sX = aEvent.screenX;
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dragData.sY = aEvent.screenY;
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dragData.dragStartTimeout = setTimeout(function(self, sX, sY) { self._dragStart(sX, sY); },
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200, this, aEvent.screenX, aEvent.screenY);
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},
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_onMouseUp: function _onMouseUp(aEvent) {
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let dragData = this._dragData;
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if (dragData.dragging)
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this._dragStop(aEvent.screenX, aEvent.screenY);
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dragData.reset(); // be sure to reset the timer
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},
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_onMouseMove: function _onMouseMove(aEvent) {
|
|
// don't do anything if we're in the process of kineticly scrolling
|
|
if (this._kineticData.kineticHandle != -1)
|
|
return;
|
|
|
|
let dragData = this._dragData;
|
|
|
|
let dx = dragData.sX - aEvent.screenX;
|
|
let dy = dragData.sY - aEvent.screenY;
|
|
|
|
if (!dragData.dragging && dragData.dragStartTimeout != -1) {
|
|
if (dx*dx + dy*dy > 100) {
|
|
clearTimeout(dragData.dragStartTimeout);
|
|
this._dragStart(aEvent.screenX, aEvent.screenY);
|
|
}
|
|
}
|
|
if (!dragData.dragging)
|
|
return;
|
|
|
|
this._dragMove(aEvent.screenX, aEvent.screenY);
|
|
|
|
dragData.sX = aEvent.screenX;
|
|
dragData.sY = aEvent.screenY;
|
|
|
|
if (dragData.useKinetic) {
|
|
// update our kinetic data
|
|
let kineticData = this._kineticData;
|
|
let t = Date.now();
|
|
let dt = t - kineticData.lastTime;
|
|
kineticData.lastTime = t;
|
|
let momentumBuffer = { dx: -dx, dy: -dy, dt: dt };
|
|
|
|
kineticData.momentumBuffer[kineticData.momentumBufferIndex] = momentumBuffer;
|
|
kineticData.momentumBufferIndex++;
|
|
kineticData.momentumBufferIndex %= kineticData.momentumBufferSize;
|
|
}
|
|
},
|
|
|
|
_startKinetic: function _startKinetic(sX, sY) {
|
|
let kineticData = this._kineticData;
|
|
|
|
let dx = 0;
|
|
let dy = 0;
|
|
let dt = 0;
|
|
if (kineticData.kineticInitialVel)
|
|
return true;
|
|
|
|
if (!kineticData.momentumBuffer)
|
|
return false;
|
|
|
|
for (let i = 0; i < kineticData.momentumBufferSize; i++) {
|
|
let me = kineticData.momentumBuffer[(kineticData.momentumBufferIndex + i) % kineticData.momentumBufferSize];
|
|
if (!me)
|
|
return false;
|
|
|
|
dx += me.dx;
|
|
dy += me.dy;
|
|
dt += me.dt;
|
|
}
|
|
if (dt <= 0)
|
|
return false;
|
|
|
|
let dist = Math.sqrt(dx*dx+dy*dy);
|
|
let vel = dist/dt;
|
|
if (vel < 1)
|
|
return false;
|
|
|
|
kineticData.kineticDirX = dx/dist;
|
|
kineticData.kineticDirY = dy/dist;
|
|
if (kineticData.kineticDirX > 0.9) {
|
|
kineticData.kineticDirX = 1;
|
|
kineticData.kineticDirY = 0;
|
|
}
|
|
else if (kineticData.kineticDirY < -0.9) {
|
|
kineticData.kineticDirX = 0;
|
|
kineticData.kineticDirY = -1;
|
|
}
|
|
else if (kineticData.kineticDirX < -0.9) {
|
|
kineticData.kineticDirX = -1;
|
|
kineticData.kineticDirY = 0;
|
|
}
|
|
else if (kineticData.kineticDirY > 0.9) {
|
|
kineticData.kineticDirX = 0;
|
|
kineticData.kineticDirY = 1;
|
|
}
|
|
|
|
kineticData.kineticDuration = vel/(2 * kineticData.kineticDecelloration);
|
|
kineticData.kineticStep = 0;
|
|
kineticData.kineticStartX = sX;
|
|
kineticData.kineticStartY = sY;
|
|
kineticData.kineticInitialVel = vel;
|
|
kineticData.kineticHandle = window.setInterval(this._doKinetic, kineticData.kineticStepSize, this);
|
|
return true;
|
|
},
|
|
|
|
_doKinetic: function _doKinetic(self) {
|
|
let kineticData = self._kineticData;
|
|
|
|
let t = kineticData.kineticStep * kineticData.kineticStepSize;
|
|
kineticData.kineticStep++;
|
|
if (t > kineticData.kineticDuration)
|
|
t = kineticData.kineticDuration;
|
|
let dist = kineticData.kineticInitialVel * t -
|
|
kineticData.kineticDecelloration * t * t;
|
|
let newX = Math.floor(kineticData.kineticDirX * dist + kineticData.kineticStartX);
|
|
let newY = Math.floor(kineticData.kineticDirY * dist + kineticData.kineticStartY);
|
|
|
|
self._dragMove(newX, newY);
|
|
|
|
if(t >= kineticData.kineticDuration)
|
|
self._endKinetic(newX, newY);
|
|
},
|
|
|
|
_endKinetic: function _endKinetic(sX, sY) {
|
|
ws.dragStop(sX, sY);
|
|
this._owner.ungrab(this);
|
|
this._dragData.reset();
|
|
this._kineticData.reset();
|
|
|
|
// Make sure that sidebars don't stay partially open
|
|
// XXX this should live somewhere else
|
|
let [leftVis,] = ws.getWidgetVisibility("tabs-container", false);
|
|
let [rightVis,] = ws.getWidgetVisibility("browser-controls", false);
|
|
if (leftVis != 0 && leftVis != 1) {
|
|
let w = document.getElementById("tabs-container").getBoundingClientRect().width;
|
|
if (leftVis >= 0.6666)
|
|
ws.panBy(-w, 0, true);
|
|
else
|
|
ws.panBy(leftVis * w, 0, true);
|
|
}
|
|
else if (rightVis != 0 && rightVis != 1) {
|
|
let w = document.getElementById("browser-controls").getBoundingClientRect().width;
|
|
if (rightVis >= 0.6666)
|
|
ws.panBy(w, 0, true);
|
|
else
|
|
ws.panBy(-rightVis * w, 0, true);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Mouse click handlers
|
|
*/
|
|
|
|
function ContentClickingModule(owner) {
|
|
this._owner = owner;
|
|
}
|
|
|
|
|
|
ContentClickingModule.prototype = {
|
|
_clickTimeout : -1,
|
|
_events : [],
|
|
_zoomed : false,
|
|
|
|
handleEvent: function handleEvent(aEvent) {
|
|
// exit early for events outside displayed content area
|
|
if (aEvent.target !== document.getElementById("browser-canvas"))
|
|
return;
|
|
|
|
switch (aEvent.type) {
|
|
// UI panning events
|
|
case "mousedown":
|
|
this._events.push({event: aEvent, time: Date.now()});
|
|
|
|
// we're waiting for a click
|
|
if (this._clickTimeout != -1) {
|
|
// if we just got another mousedown, don't send anything until we get another mousedown
|
|
clearTimeout(this._clickTimeout);
|
|
this.clickTimeout = -1;
|
|
}
|
|
break;
|
|
case "mouseup":
|
|
// keep an eye out for mouseups that didn't start with a mousedown
|
|
if (!(this._events.length % 2)) {
|
|
this._reset();
|
|
break;
|
|
}
|
|
|
|
this._events.push({event: aEvent, time: Date.now()});
|
|
|
|
if (this._clickTimeout == -1) {
|
|
this._clickTimeout = setTimeout(function(self) { self._sendSingleClick(); }, 400, this);
|
|
}
|
|
else {
|
|
clearTimeout(this._clickTimeout);
|
|
this._sendDoubleClick();
|
|
}
|
|
break;
|
|
}
|
|
},
|
|
|
|
/* If someone else grabs events ahead of us, cancel any pending
|
|
* timeouts we may have.
|
|
*/
|
|
cancelPending: function cancelPending() {
|
|
this._reset();
|
|
},
|
|
|
|
_reset: function _reset() {
|
|
if (this._clickTimeout != -1)
|
|
clearTimeout(this._clickTimeout);
|
|
this._clickTimeout = -1;
|
|
|
|
this._events = [];
|
|
},
|
|
|
|
_sendSingleClick: function _sendSingleClick() {
|
|
this._owner.grab(this);
|
|
this._dispatchContentMouseEvent(this._events[0].event);
|
|
this._dispatchContentMouseEvent(this._events[1].event);
|
|
this._owner.ungrab(this);
|
|
|
|
this._reset();
|
|
},
|
|
|
|
_sendDoubleClick: function _sendDoubleClick() {
|
|
this._owner.grab(this);
|
|
|
|
function optimalElementForPoint(cX, cY) {
|
|
var element = Browser.canvasBrowser.elementFromPoint(cX, cY);
|
|
if (!element)
|
|
return null;
|
|
|
|
// Find the nearest non-inline ancestor
|
|
while (element.parentNode) {
|
|
let display = window.getComputedStyle(element, "").getPropertyValue("display");
|
|
let zoomable = /table/.test(display) || /block/.test(display);
|
|
if (zoomable)
|
|
break;
|
|
|
|
element = element.parentNode;
|
|
}
|
|
return element;
|
|
}
|
|
|
|
let firstEvent = this._events[0].event;
|
|
let zoomElement = optimalElementForPoint(firstEvent.clientX, firstEvent.clientY);
|
|
|
|
if (zoomElement) {
|
|
if (this._zoomed) {
|
|
// zoom out
|
|
this._zoomed = false;
|
|
Browser.canvasBrowser.zoomFromElement(zoomElement);
|
|
}
|
|
else {
|
|
// zoom in
|
|
this._zoomed = true;
|
|
Browser.canvasBrowser.zoomToElement(zoomElement);
|
|
}
|
|
|
|
}
|
|
|
|
this._owner.ungrab(this);
|
|
|
|
this._reset();
|
|
},
|
|
|
|
|
|
_dispatchContentMouseEvent: function _dispatchContentMouseEvent(aEvent, aType) {
|
|
if (!(aEvent instanceof MouseEvent)) {
|
|
Cu.reportError("_dispatchContentMouseEvent called with a non-mouse event");
|
|
return;
|
|
}
|
|
|
|
let cb = Browser.canvasBrowser;
|
|
var [x, y] = cb._clientToContentCoords(aEvent.clientX, aEvent.clientY);
|
|
var cwu = cb.contentDOMWindowUtils;
|
|
|
|
// Redispatch the mouse event, ignoring the root scroll frame
|
|
cwu.sendMouseEvent(aType || aEvent.type,
|
|
x, y,
|
|
aEvent.button || 0,
|
|
aEvent.detail || 1,
|
|
0, true);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Scrollwheel zooming handler
|
|
*/
|
|
|
|
function ScrollwheelModule(owner) {
|
|
this._owner = owner;
|
|
}
|
|
|
|
ScrollwheelModule.prototype = {
|
|
handleEvent: function handleEvent(aEvent) {
|
|
switch (aEvent.type) {
|
|
// UI panning events
|
|
case "DOMMouseScroll":
|
|
this._owner.grab(this);
|
|
Browser.canvasBrowser.zoom(aEvent.detail);
|
|
this._owner.ungrab(this);
|
|
break;
|
|
}
|
|
},
|
|
|
|
/* If someone else grabs events ahead of us, cancel any pending
|
|
* timeouts we may have.
|
|
*/
|
|
cancelPending: function cancelPending() {
|
|
}
|
|
};
|