mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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879 lines
26 KiB
JavaScript
879 lines
26 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 if (elem.boxObject) {
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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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/* the list of modules that will handle input */
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this._modules = [];
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/* which module, if any, has all events directed to it */
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this._grabbed = null;
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/* when true, don't process any events */
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this._ignoreEvents = false;
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/* if set, allow a click event to get through */
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this._allowNextClick = false;
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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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/* these handle dragging of both chrome elements and content */
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window.addEventListener("mousedown", this, true);
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window.addEventListener("mouseup", this, true);
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window.addEventListener("mousemove", this, true);
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window.addEventListener("click", this, true);
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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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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 useEarlyMouseMoves = gPrefService.getBoolPref("browser.ui.panning.fixup.mousemove");
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this._modules.push(new ChromeInputModule(this, browserCanvas));
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this._modules.push(new ContentPanningModule(this, browserCanvas, useEarlyMouseMoves));
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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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grab: function grab(obj) {
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// do nothing if we have a grab and it's the one requested
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// grab(null) is allowed because of mouseout handling
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if ((obj == null) || (this._grabbed != obj)) {
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// only send events to this object
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this._grabbed = obj;
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// call cancel on all modules
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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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}
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},
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ungrab: function ungrab(obj) {
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if (this._grabbed == 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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allowNextClick: function allowNextClick() {
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this._allowNextClick = 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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// to allow supressing most clicks we don't generate ourselves,
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// filter them here unless handler code has asked us to allow it
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// through one time
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if (aEvent.type == "click") {
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if (this._allowNextClick) {
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this._allowNextClick = false;
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} else {
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aEvent.stopPropagation();
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aEvent.preventDefault();
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return;
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}
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}
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if (this._grabbed) {
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this._grabbed.handleEvent(aEvent);
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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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* Drag Data is used by both chrome and content input modules
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*/
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function DragData(owner, dragRadius, dragStartTimeoutLength) {
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this._owner = owner;
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this._dragRadius = dragRadius;
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this.reset();
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}
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DragData.prototype = {
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reset: function reset() {
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this.dragging = false;
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this.sX = null;
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this.sY = null;
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this.alreadyLocked = false;
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this.lockedX = null;
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this.lockedY = null;
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this._originX = null;
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this._originY = null;
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},
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setDragPosition: function setDragPosition(screenX, screenY) {
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this.sX = screenX;
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this.sY = screenY;
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},
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setDragStart: function setDragStart(screenX, screenY) {
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this.setDragPosition(screenX, screenY);
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this._originX = screenX;
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this._originY = screenY;
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this.dragging = true;
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},
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lockMouseMove: function lockMouseMove(sX, sY) {
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if (this.lockedX !== null)
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sX = this.lockedX;
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else if (this.lockedY !== null)
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sY = this.lockedY;
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return [sX, sY];
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},
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lockAxis: function lockAxis(sX, sY) {
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if (this.alreadyLocked)
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return this.lockMouseMove(sX, sY);
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// look at difference from stored coord to lock movement, but only
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// do it if initial movement is sufficient to detect intent
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let absX = Math.abs(this.sX - sX);
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let absY = Math.abs(this.sY - sY);
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// lock panning if we move more than half of the drag radius and that direction
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// contributed more than 2/3rd to the radial movement
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if ((absX > (this._dragRadius / 2)) && ((absX * absX) > (2 * absY * absY))) {
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this.lockedY = this.sY;
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sY = this.sY;
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}
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else if ((absY > (this._dragRadius / 2)) && ((absY * absY) > (2 * absX * absX))) {
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this.lockedX = this.sX;
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sX = this.sX;
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}
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this.alreadyLocked = true;
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return [sX, sY];
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},
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isPointOutsideRadius: function isPointOutsideRadius(sX, sY) {
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if (this._originX == undefined)
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return false;
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return (Math.pow(sX - this._originX, 2) + Math.pow(sY - this._originY, 2)) >
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(2 * Math.pow(this._dragRadius, 2));
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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) {
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this._owner = owner;
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this._browserCanvas = browserCanvas;
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this._dragData = new DragData(this, 50, 200);
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this._targetScrollbox = null;
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this._clickEvents = [];
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}
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ChromeInputModule.prototype = {
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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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}
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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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this._targetScrollbox = null;
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},
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// called from DragData.setDragStart only
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_dragStart: function _dragStart(sX, sY) {
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let dragData = this._dragData;
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dragData.setDragStart(sX, sY);
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[sX, sY] = dragData.lockAxis(sX, sY);
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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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[sX, sY] = dragData.lockMouseMove(sX, sY);
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if (this._targetScrollbox)
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this._targetScrollbox.scrollBy(dragData.sX - sX, dragData.sY - sY);
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this._targetScrollbox = null;
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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.isPointOutsideRadius(sX, sY))
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this._clickEvents = [];
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[sX, sY] = dragData.lockMouseMove(sX, sY);
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if (this._targetScrollbox)
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this._targetScrollbox.scrollBy(dragData.sX - sX, dragData.sY - sY);
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dragData.setDragPosition(sX, 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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this._targetScrollbox = getScrollboxFromElement(aEvent.target);
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if (!this._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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this._dragStart(aEvent.screenX, aEvent.screenY);
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this._onMouseMove(aEvent); // treat this as a mouse move too
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// store away the event for possible sending later if a drag doesn't happen
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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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this._clickEvents.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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if (!this._targetScrollbox) {
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this._owner.allowNextClick();
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return;
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}
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// keep an eye out for mouseups that didn't start with a mousedown
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if (!(this._clickEvents.length % 2)) {
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this._clickEvents = [];
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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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this._clickEvents.push({event: clickEvent, target: aEvent.target, time: Date.now()});
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this._sendSingleClick();
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this._targetScrollbox = null;
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}
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aEvent.stopPropagation();
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aEvent.preventDefault();
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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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this._targetScrollbox = null;
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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 (!this._targetScrollbox)
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return;
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aEvent.stopPropagation();
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aEvent.preventDefault();
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let sX = aEvent.screenX;
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let sY = aEvent.screenY;
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if (!dragData.sX)
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dragData.setDragPosition(aEvent.screenX, aEvent.screenY);
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[sX, sY] = dragData.lockMouseMove(aEvent.screenX, aEvent.screenY);
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if (!dragData.dragging)
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return;
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[sX, sY] = dragData.lockMouseMove(sX, sY);
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this._dragMove(sX, sY);
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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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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(this._clickEvents[0].event);
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this._redispatchChromeMouseEvent(this._clickEvents[1].event);
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this._owner.startListening();
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this._owner.ungrab(this);
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this._clickEvents = [];
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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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// Redispatch the mouse event, ignoring the root scroll frame
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let cwu = Browser.windowUtils;
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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 KineticData(owner) {
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this._owner = owner;
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this._kineticTimer = null;
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this.reset();
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}
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KineticData.prototype = {
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/* const */ _updateInterval : 33, // this would put us at roughly 30fps
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reset: function reset() {
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if (this._kineticTimer != null) {
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this._kineticTimer.cancel();
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this._kineticTimer = null;
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}
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this.momentumBuffer = [];
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this._speedX = 0;
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this._speedY = 0;
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},
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isActive: function isActive() {
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return (this._kineticTimer != null);
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},
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_startKineticTimer: function _startKineticTimer() {
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let callback = {
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_self: this,
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notify: function kineticTimerCallback(timer) {
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let self = this._self;
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const decelerationRate = 0.15;
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// dump(" speeds: " + self._speedX + " " + self._speedY + "\n");
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if (self._speedX == 0 && self._speedY == 0) {
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self.endKinetic();
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return;
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} else {
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let dx = Math.round(self._speedX * self._updateInterval);
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let dy = Math.round(self._speedY * self._updateInterval);
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// dump("dx, dy: " + dx + " " + dy + "\n");
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let panned = self._owner._dragBy(dx, dy);
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if (!panned) {
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self.endKinetic();
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return;
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}
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}
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if (self._speedX < 0) {
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self._speedX = Math.min(self._speedX + decelerationRate, 0);
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} else if (self._speedX > 0) {
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self._speedX = Math.max(self._speedX - decelerationRate, 0);
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}
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if (self._speedY < 0) {
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self._speedY = Math.min(self._speedY + decelerationRate, 0);
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} else if (self._speedY > 0) {
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self._speedY = Math.max(self._speedY - decelerationRate, 0);
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}
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if (self._speedX == 0 && self._speedY == 0)
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self.endKinetic();
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}
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};
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this._kineticTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
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//initialize our timer with updateInterval
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this._kineticTimer.initWithCallback(callback,
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this._updateInterval,
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this._kineticTimer.TYPE_REPEATING_SLACK);
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},
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startKinetic: function startKinetic(sX, sY) {
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let mb = this.momentumBuffer;
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let mblen = this.momentumBuffer.length;
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// If we don't have at least 2 events we can't really do kinetic panning
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if (mblen < 2)
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return false;
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let tempX = 0;
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let tempY = 0;
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// build arrays of each movement's speed in pixels/ms
|
|
let prev = mb[0];
|
|
for (let i = 1; i < mblen; i++) {
|
|
let me = mb[i];
|
|
|
|
let timeDiff = me.t - prev.t;
|
|
tempX += (me.sx - prev.sx) / timeDiff;
|
|
tempY += (me.sy - prev.sy) / timeDiff;
|
|
|
|
prev = me;
|
|
}
|
|
|
|
// average the speeds out (this could probably be a bit smarter)
|
|
this._speedX = tempX / mblen;
|
|
this._speedY = tempY / mblen;
|
|
|
|
// fire off our kinetic timer which will do all the work
|
|
this._startKineticTimer();
|
|
|
|
return true;
|
|
},
|
|
|
|
endKinetic: function endKinetic() {
|
|
if (!this.isActive()) {
|
|
this.reset();
|
|
return;
|
|
}
|
|
|
|
Browser.canvasBrowser.endPanning();
|
|
ws.dragStop();
|
|
|
|
// 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);
|
|
}
|
|
|
|
// unfreeze the toolbar if we have hide the sidebar
|
|
let visibleNow = ws.isWidgetVisible("tabs-container") || ws.isWidgetVisible("browser-controls");
|
|
if (!visibleNow)
|
|
ws.unfreeze('toolbar-main')
|
|
|
|
this.reset();
|
|
},
|
|
|
|
addData: function addData(sx, sy) {
|
|
let mbLength = this.momentumBuffer.length;
|
|
// avoid adding duplicates which would otherwise slow down the speed
|
|
let now = Date.now();
|
|
|
|
if (mbLength > 0) {
|
|
let mbLast = this.momentumBuffer[mbLength - 1];
|
|
if ((mbLast.sx == sx && mbLast.sy == sy) || mbLast.t == now) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
this.momentumBuffer.push({'t': now, 'sx' : sx, 'sy' : sy});
|
|
}
|
|
};
|
|
|
|
function ContentPanningModule(owner, browserCanvas, useEarlyMouseMoves) {
|
|
this._owner = owner;
|
|
this._browserCanvas = browserCanvas;
|
|
this._dragData = new DragData(this, 50, 200);
|
|
this._kineticData = new KineticData(this);
|
|
this._useEarlyMouseMoves = useEarlyMouseMoves;
|
|
}
|
|
|
|
ContentPanningModule.prototype = {
|
|
handleEvent: function handleEvent(aEvent) {
|
|
// exit early for events outside displayed content area
|
|
if (aEvent.target !== this._browserCanvas)
|
|
return;
|
|
|
|
switch (aEvent.type) {
|
|
case "mousedown":
|
|
this._onMouseDown(aEvent);
|
|
break;
|
|
case "mousemove":
|
|
this._onMouseMove(aEvent);
|
|
break;
|
|
case "mouseout":
|
|
case "mouseup":
|
|
this._onMouseUp(aEvent);
|
|
break;
|
|
}
|
|
},
|
|
|
|
|
|
/* If someone else grabs events ahead of us, cancel any pending
|
|
* timeouts we may have.
|
|
*/
|
|
cancelPending: function cancelPending() {
|
|
if (this._kineticData.isActive()) {
|
|
this._kineticData.endKinetic();
|
|
} else {
|
|
// make sure we're out of panning modes in case we weren't kinetic yet
|
|
ws.dragStop();
|
|
Browser.canvasBrowser.endPanning();
|
|
}
|
|
let dragData = this._dragData;
|
|
dragData.reset();
|
|
},
|
|
|
|
_dragStart: function _dragStart(sX, sY) {
|
|
let dragData = this._dragData;
|
|
|
|
dragData.setDragStart(sX, sY);
|
|
|
|
[sX, sY] = dragData.lockAxis(sX, sY);
|
|
|
|
ws.dragStart(sX, sY);
|
|
|
|
Browser.canvasBrowser.startPanning();
|
|
},
|
|
|
|
_dragStop: function _dragStop(sX, sY) {
|
|
let dragData = this._dragData;
|
|
|
|
this._owner.ungrab(this);
|
|
|
|
[sX, sY] = dragData.lockMouseMove(sX, sY);
|
|
|
|
// start kinetic scrolling here for canvas only
|
|
if (!this._kineticData.startKinetic(sX, sY))
|
|
this._kineticData.endKinetic();
|
|
|
|
dragData.reset();
|
|
},
|
|
|
|
_dragBy: function _dragBy(dx, dy) {
|
|
let panned = ws.dragBy(dx, dy);
|
|
return panned;
|
|
},
|
|
|
|
_dragMove: function _dragMove(sX, sY) {
|
|
let dragData = this._dragData;
|
|
[sX, sY] = dragData.lockMouseMove(sX, sY);
|
|
let panned = ws.dragMove(sX, sY);
|
|
dragData.setDragPosition(sX, sY);
|
|
return panned;
|
|
},
|
|
|
|
_onMouseDown: function _onMouseDown(aEvent) {
|
|
let dragData = this._dragData;
|
|
// if we're in the process of kineticly scrolling, stop and start over
|
|
if (this._kineticData.isActive()) {
|
|
this._kineticData.endKinetic();
|
|
this._owner.ungrab(this);
|
|
dragData.reset();
|
|
}
|
|
|
|
this._dragStart(aEvent.screenX, aEvent.screenY);
|
|
this._onMouseMove(aEvent); // treat this as a mouse move too
|
|
},
|
|
|
|
_onMouseUp: function _onMouseUp(aEvent) {
|
|
let dragData = this._dragData;
|
|
|
|
if (dragData.dragging) {
|
|
this._onMouseMove(aEvent); // treat this as a mouse move, incase our x/y are different
|
|
this._dragStop(aEvent.screenX, aEvent.screenY);
|
|
}
|
|
|
|
dragData.reset(); // be sure to reset the timer
|
|
},
|
|
|
|
_onMouseMove: function _onMouseMove(aEvent) {
|
|
// don't do anything if we're in the process of kineticly scrolling
|
|
if (this._kineticData.isActive())
|
|
return;
|
|
|
|
let dragData = this._dragData;
|
|
|
|
// if we move enough, start a grab to prevent click from getting events
|
|
if (dragData.isPointOutsideRadius(aEvent.screenX, aEvent.screenY))
|
|
this._owner.grab(this);
|
|
|
|
// if we never received a mouseDown, we need to go ahead and set this data
|
|
if (!dragData.sX)
|
|
dragData.setDragPosition(aEvent.screenX, aEvent.screenY);
|
|
|
|
let [sX, sY] = dragData.lockMouseMove(aEvent.screenX, aEvent.screenY);
|
|
|
|
// even if we haven't started dragging yet, we should queue up the
|
|
// mousemoves in case we do start
|
|
if (this._useEarlyMouseMoves || dragData.dragging)
|
|
this._kineticData.addData(sX, sY);
|
|
|
|
if (dragData.dragging)
|
|
this._dragMove(sX, sY);
|
|
},
|
|
};
|
|
|
|
/**
|
|
* Mouse click handlers
|
|
*/
|
|
|
|
function ContentClickingModule(owner) {
|
|
this._owner = owner;
|
|
this._clickTimeout = -1;
|
|
this._events = [];
|
|
this._zoomedTo = null;
|
|
}
|
|
|
|
ContentClickingModule.prototype = {
|
|
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) {
|
|
// go ahead and stop the timeout so no single click gets
|
|
// sent, but don't clear clickTimeout here so that mouseUp
|
|
// handler will treat this as a double click
|
|
window.clearTimeout(this._clickTimeout);
|
|
}
|
|
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 = window.setTimeout(function _clickTimeout(self) { self._sendSingleClick(); }, 400, this);
|
|
} else {
|
|
window.clearTimeout(this._clickTimeout);
|
|
this._clickTimeout = -1;
|
|
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)
|
|
window.clearTimeout(this._clickTimeout);
|
|
this._clickTimeout = -1;
|
|
|
|
this._events = [];
|
|
},
|
|
|
|
_sendSingleClick: function _sendSingleClick() {
|
|
this._owner.allowNextClick();
|
|
|
|
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);
|
|
return element;
|
|
}
|
|
|
|
let firstEvent = this._events[0].event;
|
|
let zoomElement = optimalElementForPoint(firstEvent.clientX, firstEvent.clientY);
|
|
|
|
if (zoomElement) {
|
|
if (zoomElement != this._zoomedTo) {
|
|
this._zoomedTo = zoomElement;
|
|
Browser.canvasBrowser.zoomToElement(zoomElement);
|
|
} else {
|
|
this._zoomedTo = null;
|
|
Browser.canvasBrowser.zoomFromElement(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() {
|
|
}
|
|
};
|