mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
648 lines
20 KiB
JavaScript
648 lines
20 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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let Cc = Components.classes;
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let Ci = Components.interfaces;
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let Cu = Components.utils;
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let Cr = Components.results;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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var global = this;
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// Lazily load the finder code
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addMessageListener("Finder:Initialize", function () {
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let {RemoteFinderListener} = Cu.import("resource://gre/modules/RemoteFinder.jsm", {});
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new RemoteFinderListener(global);
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});
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let ClickEventHandler = {
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init: function init() {
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this._scrollable = null;
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this._scrolldir = "";
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this._startX = null;
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this._startY = null;
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this._screenX = null;
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this._screenY = null;
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this._lastFrame = null;
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Services.els.addSystemEventListener(global, "mousedown", this, true);
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addMessageListener("Autoscroll:Stop", this);
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},
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isAutoscrollBlocker: function(node) {
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let mmPaste = Services.prefs.getBoolPref("middlemouse.paste");
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let mmScrollbarPosition = Services.prefs.getBoolPref("middlemouse.scrollbarPosition");
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while (node) {
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if ((node instanceof content.HTMLAnchorElement || node instanceof content.HTMLAreaElement) &&
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node.hasAttribute("href")) {
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return true;
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}
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if (mmPaste && (node instanceof content.HTMLInputElement ||
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node instanceof content.HTMLTextAreaElement)) {
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return true;
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}
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if (node instanceof content.XULElement && mmScrollbarPosition
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&& (node.localName == "scrollbar" || node.localName == "scrollcorner")) {
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return true;
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}
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node = node.parentNode;
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}
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return false;
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},
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findNearestScrollableElement: function(aNode) {
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// this is a list of overflow property values that allow scrolling
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const scrollingAllowed = ['scroll', 'auto'];
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// go upward in the DOM and find any parent element that has a overflow
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// area and can therefore be scrolled
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for (this._scrollable = aNode; this._scrollable;
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this._scrollable = this._scrollable.parentNode) {
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// do not use overflow based autoscroll for <html> and <body>
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// Elements or non-html elements such as svg or Document nodes
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// also make sure to skip select elements that are not multiline
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if (!(this._scrollable instanceof content.HTMLElement) ||
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((this._scrollable instanceof content.HTMLSelectElement) && !this._scrollable.multiple)) {
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continue;
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}
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var overflowx = this._scrollable.ownerDocument.defaultView
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.getComputedStyle(this._scrollable, '')
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.getPropertyValue('overflow-x');
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var overflowy = this._scrollable.ownerDocument.defaultView
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.getComputedStyle(this._scrollable, '')
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.getPropertyValue('overflow-y');
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// we already discarded non-multiline selects so allow vertical
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// scroll for multiline ones directly without checking for a
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// overflow property
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var scrollVert = this._scrollable.scrollTopMax &&
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(this._scrollable instanceof content.HTMLSelectElement ||
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scrollingAllowed.indexOf(overflowy) >= 0);
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// do not allow horizontal scrolling for select elements, it leads
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// to visual artifacts and is not the expected behavior anyway
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if (!(this._scrollable instanceof content.HTMLSelectElement) &&
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this._scrollable.scrollLeftMax &&
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scrollingAllowed.indexOf(overflowx) >= 0) {
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this._scrolldir = scrollVert ? "NSEW" : "EW";
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break;
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} else if (scrollVert) {
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this._scrolldir = "NS";
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break;
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}
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}
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if (!this._scrollable) {
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this._scrollable = aNode.ownerDocument.defaultView;
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if (this._scrollable.scrollMaxX > 0) {
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this._scrolldir = this._scrollable.scrollMaxY > 0 ? "NSEW" : "EW";
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} else if (this._scrollable.scrollMaxY > 0) {
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this._scrolldir = "NS";
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} else if (this._scrollable.frameElement) {
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this.findNearestScrollableElement(this._scrollable.frameElement);
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} else {
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this._scrollable = null; // abort scrolling
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}
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}
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},
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startScroll: function(event) {
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this.findNearestScrollableElement(event.originalTarget);
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if (!this._scrollable)
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return;
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let [enabled] = sendSyncMessage("Autoscroll:Start",
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{scrolldir: this._scrolldir,
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screenX: event.screenX,
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screenY: event.screenY});
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if (!enabled) {
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this._scrollable = null;
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return;
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}
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Services.els.addSystemEventListener(global, "mousemove", this, true);
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addEventListener("pagehide", this, true);
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this._ignoreMouseEvents = true;
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this._startX = event.screenX;
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this._startY = event.screenY;
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this._screenX = event.screenX;
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this._screenY = event.screenY;
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this._scrollErrorX = 0;
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this._scrollErrorY = 0;
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this._lastFrame = content.mozAnimationStartTime;
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content.mozRequestAnimationFrame(this);
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},
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stopScroll: function() {
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if (this._scrollable) {
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this._scrollable.mozScrollSnap();
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this._scrollable = null;
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Services.els.removeSystemEventListener(global, "mousemove", this, true);
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removeEventListener("pagehide", this, true);
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}
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},
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accelerate: function(curr, start) {
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const speed = 12;
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var val = (curr - start) / speed;
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if (val > 1)
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return val * Math.sqrt(val) - 1;
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if (val < -1)
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return val * Math.sqrt(-val) + 1;
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return 0;
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},
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roundToZero: function(num) {
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if (num > 0)
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return Math.floor(num);
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return Math.ceil(num);
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},
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autoscrollLoop: function(timestamp) {
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if (!this._scrollable) {
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// Scrolling has been canceled
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return;
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}
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// avoid long jumps when the browser hangs for more than
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// |maxTimeDelta| ms
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const maxTimeDelta = 100;
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var timeDelta = Math.min(maxTimeDelta, timestamp - this._lastFrame);
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// we used to scroll |accelerate()| pixels every 20ms (50fps)
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var timeCompensation = timeDelta / 20;
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this._lastFrame = timestamp;
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var actualScrollX = 0;
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var actualScrollY = 0;
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// don't bother scrolling vertically when the scrolldir is only horizontal
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// and the other way around
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if (this._scrolldir != 'EW') {
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var y = this.accelerate(this._screenY, this._startY) * timeCompensation;
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var desiredScrollY = this._scrollErrorY + y;
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actualScrollY = this.roundToZero(desiredScrollY);
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this._scrollErrorY = (desiredScrollY - actualScrollY);
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}
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if (this._scrolldir != 'NS') {
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var x = this.accelerate(this._screenX, this._startX) * timeCompensation;
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var desiredScrollX = this._scrollErrorX + x;
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actualScrollX = this.roundToZero(desiredScrollX);
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this._scrollErrorX = (desiredScrollX - actualScrollX);
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}
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if (this._scrollable instanceof content.Window) {
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this._scrollable.scrollBy(actualScrollX, actualScrollY);
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} else { // an element with overflow
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this._scrollable.scrollLeft += actualScrollX;
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this._scrollable.scrollTop += actualScrollY;
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}
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content.mozRequestAnimationFrame(this);
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},
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sample: function(timestamp) {
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this.autoscrollLoop(timestamp);
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},
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handleEvent: function(event) {
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if (event.type == "mousemove") {
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this._screenX = event.screenX;
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this._screenY = event.screenY;
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} else if (event.type == "mousedown") {
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if (event.isTrusted &
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!event.defaultPrevented &&
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event.button == 1 &&
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!this._scrollable &&
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!this.isAutoscrollBlocker(event.originalTarget)) {
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this.startScroll(event);
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}
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} else if (event.type == "pagehide") {
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if (this._scrollable) {
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var doc =
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this._scrollable.ownerDocument || this._scrollable.document;
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if (doc == event.target) {
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sendAsyncMessage("Autoscroll:Cancel");
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}
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}
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}
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},
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receiveMessage: function(msg) {
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switch (msg.name) {
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case "Autoscroll:Stop": {
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this.stopScroll();
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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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ClickEventHandler.init();
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let PopupBlocking = {
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popupData: null,
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popupDataInternal: null,
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init: function() {
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addEventListener("DOMPopupBlocked", this, true);
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addEventListener("pageshow", this, true);
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addEventListener("pagehide", this, true);
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addMessageListener("PopupBlocking:UnblockPopup", this);
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},
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receiveMessage: function(msg) {
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switch (msg.name) {
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case "PopupBlocking:UnblockPopup": {
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let i = msg.data.index;
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if (this.popupData && this.popupData[i]) {
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let data = this.popupData[i];
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let internals = this.popupDataInternal[i];
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let dwi = internals.requestingWindow;
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// If we have a requesting window and the requesting document is
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// still the current document, open the popup.
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if (dwi && dwi.document == internals.requestingDocument) {
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dwi.open(data.popupWindowURI, data.popupWindowName, data.popupWindowFeatures);
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}
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}
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break;
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}
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}
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},
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handleEvent: function(ev) {
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switch (ev.type) {
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case "DOMPopupBlocked":
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return this.onPopupBlocked(ev);
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case "pageshow":
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return this.onPageShow(ev);
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case "pagehide":
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return this.onPageHide(ev);
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}
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},
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onPopupBlocked: function(ev) {
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if (!this.popupData) {
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this.popupData = new Array();
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this.popupDataInternal = new Array();
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}
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let obj = {
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popupWindowURI: ev.popupWindowURI.spec,
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popupWindowFeatures: ev.popupWindowFeatures,
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popupWindowName: ev.popupWindowName
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};
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let internals = {
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requestingWindow: ev.requestingWindow,
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requestingDocument: ev.requestingWindow.document,
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};
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this.popupData.push(obj);
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this.popupDataInternal.push(internals);
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this.updateBlockedPopups(true);
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},
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onPageShow: function(ev) {
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if (this.popupData) {
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let i = 0;
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while (i < this.popupData.length) {
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// Filter out irrelevant reports.
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if (this.popupDataInternal[i].requestingWindow &&
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(this.popupDataInternal[i].requestingWindow.document ==
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this.popupDataInternal[i].requestingDocument)) {
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i++;
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} else {
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this.popupData.splice(i, 1);
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this.popupDataInternal.splice(i, 1);
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}
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}
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if (this.popupData.length == 0) {
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this.popupData = null;
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this.popupDataInternal = null;
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}
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this.updateBlockedPopups(false);
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}
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},
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onPageHide: function(ev) {
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if (this.popupData) {
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this.popupData = null;
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this.popupDataInternal = null;
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this.updateBlockedPopups(false);
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}
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},
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updateBlockedPopups: function(freshPopup) {
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sendAsyncMessage("PopupBlocking:UpdateBlockedPopups",
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{blockedPopups: this.popupData, freshPopup: freshPopup});
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},
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};
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PopupBlocking.init();
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// Set up console.* for frame scripts.
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let Console = Components.utils.import("resource://gre/modules/devtools/Console.jsm", {});
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this.console = new Console.ConsoleAPI();
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let Printing = {
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// Bug 1088061: nsPrintEngine's DoCommonPrint currently expects the
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// progress listener passed to it to QI to an nsIPrintingPromptService
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// in order to know that a printing progress dialog has been shown. That's
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// really all the interface is used for, hence the fact that I don't actually
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// implement the interface here. Bug 1088061 has been filed to remove
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// this hackery.
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
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Ci.nsIPrintingPromptService]),
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MESSAGES: [
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"Printing:Preview:Enter",
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"Printing:Preview:Exit",
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"Printing:Preview:Navigate",
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"Printing:Preview:UpdatePageCount",
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"Printing:Print",
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],
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init() {
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this.MESSAGES.forEach(msgName => addMessageListener(msgName, this));
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},
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get shouldSavePrintSettings() {
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return Services.prefs.getBoolPref("print.use_global_printsettings", false) &&
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Services.prefs.getBoolPref("print.save_print_settings", false);
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},
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receiveMessage(message) {
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let objects = message.objects;
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let data = message.data;
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switch(message.name) {
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case "Printing:Preview:Enter": {
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this.enterPrintPreview(objects.contentWindow);
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break;
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}
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case "Printing:Preview:Exit": {
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this.exitPrintPreview();
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break;
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}
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case "Printing:Preview:Navigate": {
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this.navigate(data.navType, data.pageNum);
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break;
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}
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case "Printing:Preview:UpdatePageCount": {
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this.updatePageCount();
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break;
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}
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case "Printing:Print": {
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this.print(objects.contentWindow);
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break;
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}
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}
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},
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getPrintSettings() {
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try {
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let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
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.getService(Ci.nsIPrintSettingsService);
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let printSettings = PSSVC.globalPrintSettings;
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if (!printSettings.printerName) {
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printSettings.printerName = PSSVC.defaultPrinterName;
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}
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// First get any defaults from the printer
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PSSVC.initPrintSettingsFromPrinter(printSettings.printerName,
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printSettings);
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// now augment them with any values from last time
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PSSVC.initPrintSettingsFromPrefs(printSettings, true,
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printSettings.kInitSaveAll);
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return printSettings;
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} catch(e) {
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Components.utils.reportError(e);
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}
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return null;
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},
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enterPrintPreview(contentWindow) {
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// We'll call this whenever we've finished reflowing the document, or if
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// we errored out while attempting to print preview (in which case, we'll
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// notify the parent that we've failed).
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let notifyEntered = (error) => {
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removeEventListener("printPreviewUpdate", onPrintPreviewReady);
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sendAsyncMessage("Printing:Preview:Entered", {
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failed: !!error,
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});
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};
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let onPrintPreviewReady = () => {
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notifyEntered();
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};
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// We have to wait for the print engine to finish reflowing all of the
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// documents and subdocuments before we can tell the parent to flip to
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// the print preview UI - otherwise, the print preview UI might ask for
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// information (like the number of pages in the document) before we have
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// our PresShells set up.
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addEventListener("printPreviewUpdate", onPrintPreviewReady);
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try {
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let printSettings = this.getPrintSettings();
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docShell.printPreview.printPreview(printSettings, contentWindow, this);
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} catch(error) {
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// This might fail if we, for example, attempt to print a XUL document.
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// In that case, we inform the parent to bail out of print preview.
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Components.utils.reportError(error);
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notifyEntered(error);
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}
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},
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exitPrintPreview() {
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docShell.printPreview.exitPrintPreview();
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},
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print(contentWindow) {
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let printSettings = this.getPrintSettings();
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let rv = Cr.NS_OK;
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try {
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let print = contentWindow.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIWebBrowserPrint);
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print.print(printSettings, null);
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} catch(e) {
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// Pressing cancel is expressed as an NS_ERROR_ABORT return value,
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// causing an exception to be thrown which we catch here.
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if (e.result != Cr.NS_ERROR_ABORT) {
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Cu.reportError(`In Printing:Print:Done handler, got unexpected rv
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${e.result}.`);
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}
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}
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if (this.shouldSavePrintSettings) {
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let PSSVC = Cc["@mozilla.org/gfx/printsettings-service;1"]
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.getService(Ci.nsIPrintSettingsService);
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PSSVC.savePrintSettingsToPrefs(printSettings, true,
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printSettings.kInitSaveAll);
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PSSVC.savePrintSettingsToPrefs(printSettings, false,
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printSettings.kInitSavePrinterName);
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}
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},
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updatePageCount() {
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let numPages = docShell.printPreview.printPreviewNumPages;
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sendAsyncMessage("Printing:Preview:UpdatePageCount", {
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numPages: numPages,
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});
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},
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navigate(navType, pageNum) {
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docShell.printPreview.printPreviewNavigate(navType, pageNum);
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},
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/* nsIWebProgressListener for print preview */
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onStateChange(aWebProgress, aRequest, aStateFlags, aStatus) {
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sendAsyncMessage("Printing:Preview:StateChange", {
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stateFlags: aStateFlags,
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status: aStatus,
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});
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},
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onProgressChange(aWebProgress, aRequest, aCurSelfProgress,
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aMaxSelfProgress, aCurTotalProgress,
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aMaxTotalProgress) {
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sendAsyncMessage("Printing:Preview:ProgressChange", {
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curSelfProgress: aCurSelfProgress,
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maxSelfProgress: aMaxSelfProgress,
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curTotalProgress: aCurTotalProgress,
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maxTotalProgress: aMaxTotalProgress,
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});
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},
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|
onLocationChange(aWebProgress, aRequest, aLocation, aFlags) {},
|
|
onStatusChange(aWebProgress, aRequest, aStatus, aMessage) {},
|
|
onSecurityChange(aWebProgress, aRequest, aState) {},
|
|
}
|
|
Printing.init();
|
|
|
|
function SwitchDocumentDirection(aWindow) {
|
|
// document.dir can also be "auto", in which case it won't change
|
|
if (aWindow.document.dir == "ltr" || aWindow.document.dir == "") {
|
|
aWindow.document.dir = "rtl";
|
|
} else if (aWindow.document.dir == "rtl") {
|
|
aWindow.document.dir = "ltr";
|
|
}
|
|
for (let run = 0; run < aWindow.frames.length; run++) {
|
|
SwitchDocumentDirection(aWindow.frames[run]);
|
|
}
|
|
}
|
|
|
|
addMessageListener("SwitchDocumentDirection", () => {
|
|
SwitchDocumentDirection(content.window);
|
|
});
|
|
|
|
let FindBar = {
|
|
/* Please keep in sync with toolkit/content/widgets/findbar.xml */
|
|
FIND_NORMAL: 0,
|
|
FIND_TYPEAHEAD: 1,
|
|
FIND_LINKS: 2,
|
|
FAYT_LINKS_KEY: "'".charCodeAt(0),
|
|
FAYT_TEXT_KEY: "/".charCodeAt(0),
|
|
|
|
_findMode: 0,
|
|
get _findAsYouType() {
|
|
return Services.prefs.getBoolPref("accessibility.typeaheadfind");
|
|
},
|
|
|
|
init() {
|
|
addMessageListener("Findbar:UpdateState", this);
|
|
Services.els.addSystemEventListener(global, "keypress", this, false);
|
|
Services.els.addSystemEventListener(global, "mouseup", this, false);
|
|
},
|
|
|
|
receiveMessage(msg) {
|
|
switch (msg.name) {
|
|
case "Findbar:UpdateState":
|
|
this._findMode = msg.data.findMode;
|
|
this._findAsYouType = msg.data.findAsYouType;
|
|
break;
|
|
}
|
|
},
|
|
|
|
handleEvent(event) {
|
|
switch (event.type) {
|
|
case "keypress":
|
|
this._onKeypress(event);
|
|
break;
|
|
case "mouseup":
|
|
this._onMouseup(event);
|
|
break;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Returns whether FAYT can be used for the given event in
|
|
* the current content state.
|
|
*/
|
|
_shouldFastFind() {
|
|
//XXXgijs: why all these shenanigans? Why not use the event's target?
|
|
let focusedWindow = {};
|
|
let elt = Services.focus.getFocusedElementForWindow(content, true, focusedWindow);
|
|
let win = focusedWindow.value;
|
|
let {BrowserUtils} = Cu.import("resource://gre/modules/BrowserUtils.jsm", {});
|
|
return BrowserUtils.shouldFastFind(elt, win);
|
|
},
|
|
|
|
_onKeypress(event) {
|
|
// Useless keys:
|
|
if (event.ctrlKey || event.altKey || event.metaKey || event.defaultPrevented) {
|
|
return;
|
|
}
|
|
// Not interested in random keypresses most of the time:
|
|
if (this._findMode == this.FIND_NORMAL && !this._findAsYouType &&
|
|
event.charCode != this.FAYT_LINKS_KEY && event.charCode != this.FAYT_TEXT_KEY) {
|
|
return;
|
|
}
|
|
|
|
// Check the focused element etc.
|
|
if (!this._shouldFastFind()) {
|
|
return;
|
|
}
|
|
|
|
let fakeEvent = {};
|
|
for (let k in event) {
|
|
if (typeof event[k] != "object" && typeof event[k] != "function") {
|
|
fakeEvent[k] = event[k];
|
|
}
|
|
}
|
|
// sendSyncMessage returns an array of the responses from all listeners
|
|
let rv = sendSyncMessage("Findbar:Keypress", fakeEvent);
|
|
if (rv.indexOf(false) !== -1) {
|
|
event.preventDefault();
|
|
return false;
|
|
}
|
|
},
|
|
|
|
_onMouseup(event) {
|
|
if (this._findMode != this.FIND_NORMAL)
|
|
sendAsyncMessage("Findbar:Mouseup");
|
|
},
|
|
};
|
|
FindBar.init();
|