tenfourfox/browser/base/content/browser-fullScreen.js

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JavaScript
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2017-04-19 07:56:45 +00:00
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
var FullScreen = {
_MESSAGES: [
"DOMFullscreen:Request",
"DOMFullscreen:NewOrigin",
"DOMFullscreen:Exit",
"DOMFullscreen:Painted",
],
init: function() {
// called when we go into full screen, even if initiated by a web page script
window.addEventListener("fullscreen", this, true);
window.addEventListener("MozDOMFullscreen:Entered", this,
/* useCapture */ true,
/* wantsUntrusted */ false);
window.addEventListener("MozDOMFullscreen:Exited", this,
/* useCapture */ true,
/* wantsUntrusted */ false);
for (let type of this._MESSAGES) {
window.messageManager.addMessageListener(type, this);
}
this._WarningBox.init();
if (window.fullScreen)
this.toggle();
},
uninit: function() {
for (let type of this._MESSAGES) {
window.messageManager.removeMessageListener(type, this);
}
this.cleanup();
},
toggle: function () {
var enterFS = window.fullScreen;
// Toggle the View:FullScreen command, which controls elements like the
// fullscreen menuitem, and menubars.
let fullscreenCommand = document.getElementById("View:FullScreen");
if (enterFS) {
fullscreenCommand.setAttribute("checked", enterFS);
} else {
fullscreenCommand.removeAttribute("checked");
}
if (AppConstants.platform == "macosx") {
// Make sure the menu items are adjusted.
document.getElementById("enterFullScreenItem").hidden = enterFS;
document.getElementById("exitFullScreenItem").hidden = !enterFS;
}
if (!this._fullScrToggler) {
this._fullScrToggler = document.getElementById("fullscr-toggler");
this._fullScrToggler.addEventListener("mouseover", this._expandCallback, false);
this._fullScrToggler.addEventListener("dragenter", this._expandCallback, false);
}
if (enterFS) {
gNavToolbox.setAttribute("inFullscreen", true);
document.documentElement.setAttribute("inFullscreen", true);
if (!document.mozFullScreen && this.useLionFullScreen)
document.documentElement.setAttribute("OSXLionFullscreen", true);
} else {
gNavToolbox.removeAttribute("inFullscreen");
document.documentElement.removeAttribute("inFullscreen");
document.documentElement.removeAttribute("OSXLionFullscreen");
}
if (!document.mozFullScreen)
this._updateToolbars(enterFS);
if (enterFS) {
document.addEventListener("keypress", this._keyToggleCallback, false);
document.addEventListener("popupshown", this._setPopupOpen, false);
document.addEventListener("popuphidden", this._setPopupOpen, false);
// In DOM fullscreen mode, we hide toolbars with CSS
if (!document.mozFullScreen)
this.hideNavToolbox(true);
}
else {
this.showNavToolbox(false);
// This is needed if they use the context menu to quit fullscreen
this._isPopupOpen = false;
this.cleanup();
// In TabsInTitlebar._update(), we cancel the appearance update on
// resize event for exiting fullscreen, since that happens before we
// change the UI here in the "fullscreen" event. Hence we need to
// call it here to ensure the appearance is properly updated. See
// TabsInTitlebar._update() and bug 1173768.
TabsInTitlebar.updateAppearance(true);
}
if (enterFS && !document.mozFullScreen) {
Services.telemetry.getHistogramById("FX_BROWSER_FULLSCREEN_USED")
.add(1);
}
},
exitDomFullScreen : function() {
document.mozCancelFullScreen();
},
handleEvent: function (event) {
switch (event.type) {
case "activate":
if (document.mozFullScreen) {
this._WarningBox.show();
}
break;
case "fullscreen":
this.toggle();
break;
case "MozDOMFullscreen:Entered": {
// The event target is the element which requested the DOM
// fullscreen. If we were entering DOM fullscreen for a remote
// browser, the target would be `gBrowser` and the original
// target would be the browser which was the parameter of
// `remoteFrameFullscreenChanged` call. If the fullscreen
// request was initiated from an in-process browser, we need
// to get its corresponding browser here.
let browser;
if (event.target == gBrowser) {
browser = event.originalTarget;
} else {
let topWin = event.target.ownerDocument.defaultView.top;
browser = gBrowser.getBrowserForContentWindow(topWin);
}
if (!browser || !this.enterDomFullscreen(browser)) {
if (document.mozFullScreen) {
// MozDOMFullscreen:Entered is dispatched synchronously in
// fullscreen change, hence we have to avoid calling this
// method synchronously here.
setTimeout(() => document.mozCancelFullScreen(), 0);
}
break;
}
// If it is a remote browser, send a message to ask the content
// to enter fullscreen state. We don't need to do so if it is an
// in-process browser, since all related document should have
// entered fullscreen state at this point.
if (this._isRemoteBrowser(browser)) {
browser.messageManager.sendAsyncMessage("DOMFullscreen:Entered");
}
break;
}
case "MozDOMFullscreen:Exited":
this.cleanupDomFullscreen();
break;
}
},
receiveMessage: function(aMessage) {
let browser = aMessage.target;
switch (aMessage.name) {
case "DOMFullscreen:Request": {
this._windowUtils.remoteFrameFullscreenChanged(browser);
break;
}
case "DOMFullscreen:NewOrigin": {
this._WarningBox.show(aMessage.data.originNoSuffix);
break;
}
case "DOMFullscreen:Exit": {
this._windowUtils.remoteFrameFullscreenReverted();
break;
}
case "DOMFullscreen:Painted": {
Services.obs.notifyObservers(window, "fullscreen-painted", "");
break;
}
}
},
enterDomFullscreen : function(aBrowser) {
if (!document.mozFullScreen)
return false;
// If we've received a fullscreen notification, we have to ensure that the
// element that's requesting fullscreen belongs to the browser that's currently
// active. If not, we exit fullscreen since the "full-screen document" isn't
// actually visible now.
if (gBrowser.selectedBrowser != aBrowser) {
return false;
}
let focusManager = Services.focus;
if (focusManager.activeWindow != window) {
// The top-level window has lost focus since the request to enter
// full-screen was made. Cancel full-screen.
return false;
}
document.documentElement.setAttribute("inDOMFullscreen", true);
if (gFindBarInitialized) {
gFindBar.close(true);
}
// Exit DOM full-screen mode upon open, close, or change tab.
gBrowser.tabContainer.addEventListener("TabOpen", this.exitDomFullScreen);
gBrowser.tabContainer.addEventListener("TabClose", this.exitDomFullScreen);
gBrowser.tabContainer.addEventListener("TabSelect", this.exitDomFullScreen);
// Add listener to detect when the fullscreen window is re-focused.
// If a fullscreen window loses focus, we show a warning when the
// fullscreen window is refocused.
window.addEventListener("activate", this);
return true;
},
cleanup: function () {
if (!window.fullScreen) {
MousePosTracker.removeListener(this);
document.removeEventListener("keypress", this._keyToggleCallback, false);
document.removeEventListener("popupshown", this._setPopupOpen, false);
document.removeEventListener("popuphidden", this._setPopupOpen, false);
}
},
cleanupDomFullscreen: function () {
this._WarningBox.close();
gBrowser.tabContainer.removeEventListener("TabOpen", this.exitDomFullScreen);
gBrowser.tabContainer.removeEventListener("TabClose", this.exitDomFullScreen);
gBrowser.tabContainer.removeEventListener("TabSelect", this.exitDomFullScreen);
window.removeEventListener("activate", this);
document.documentElement.removeAttribute("inDOMFullscreen");
window.messageManager
.broadcastAsyncMessage("DOMFullscreen:CleanUp");
},
_isRemoteBrowser: function (aBrowser) {
return gMultiProcessBrowser && aBrowser.getAttribute("remote") == "true";
},
get _windowUtils() {
return window.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils);
},
getMouseTargetRect: function()
{
return this._mouseTargetRect;
},
// Event callbacks
_expandCallback: function()
{
FullScreen.showNavToolbox();
},
onMouseEnter: function()
{
FullScreen.hideNavToolbox();
},
_keyToggleCallback: function(aEvent)
{
// if we can use the keyboard (eg Ctrl+L or Ctrl+E) to open the toolbars, we
// should provide a way to collapse them too.
if (aEvent.keyCode == aEvent.DOM_VK_ESCAPE) {
FullScreen.hideNavToolbox();
}
// F6 is another shortcut to the address bar, but its not covered in OpenLocation()
else if (aEvent.keyCode == aEvent.DOM_VK_F6)
FullScreen.showNavToolbox();
},
// Checks whether we are allowed to collapse the chrome
_isPopupOpen: false,
_isChromeCollapsed: false,
_safeToCollapse: function () {
if (!gPrefService.getBoolPref("browser.fullscreen.autohide"))
return false;
// a popup menu is open in chrome: don't collapse chrome
if (this._isPopupOpen)
return false;
// On OS X Lion we don't want to hide toolbars.
if (this.useLionFullScreen)
return false;
// a textbox in chrome is focused (location bar anyone?): don't collapse chrome
if (document.commandDispatcher.focusedElement &&
document.commandDispatcher.focusedElement.ownerDocument == document &&
document.commandDispatcher.focusedElement.localName == "input") {
return false;
}
return true;
},
_setPopupOpen: function(aEvent)
{
// Popups should only veto chrome collapsing if they were opened when the chrome was not collapsed.
// Otherwise, they would not affect chrome and the user would expect the chrome to go away.
// e.g. we wouldn't want the autoscroll icon firing this event, so when the user
// toggles chrome when moving mouse to the top, it doesn't go away again.
if (aEvent.type == "popupshown" && !FullScreen._isChromeCollapsed &&
aEvent.target.localName != "tooltip" && aEvent.target.localName != "window")
FullScreen._isPopupOpen = true;
else if (aEvent.type == "popuphidden" && aEvent.target.localName != "tooltip" &&
aEvent.target.localName != "window") {
FullScreen._isPopupOpen = false;
// Try again to hide toolbar when we close the popup.
FullScreen.hideNavToolbox(true);
}
},
// Autohide helpers for the context menu item
getAutohide: function(aItem)
{
aItem.setAttribute("checked", gPrefService.getBoolPref("browser.fullscreen.autohide"));
},
setAutohide: function()
{
gPrefService.setBoolPref("browser.fullscreen.autohide", !gPrefService.getBoolPref("browser.fullscreen.autohide"));
// Try again to hide toolbar when we change the pref.
FullScreen.hideNavToolbox(true);
},
_WarningBox: {
_element: null,
_origin: null,
/**
* Timeout object for managing timeout request. If it is started when
* the previous call hasn't finished, it would automatically cancelled
* the previous one.
*/
Timeout: function(func, delay) {
this._id = 0;
this._func = func;
this._delay = delay;
},
init: function() {
this.Timeout.prototype = {
start: function() {
this.cancel();
this._id = setTimeout(() => this._handle(), this._delay);
},
cancel: function() {
if (this._id) {
clearTimeout(this._id);
this._id = 0;
}
},
_handle: function() {
this._id = 0;
this._func();
},
get delay() {
return this._delay;
}
};
},
// Shows a warning that the site has entered fullscreen for a short duration.
show: function(aOrigin) {
if (!document.mozFullScreen) {
return;
}
if (!this._element) {
this._element = document.getElementById("fullscreen-warning");
// Setup event listeners
this._element.addEventListener("transitionend", this);
window.addEventListener("mousemove", this, true);
// The timeout to hide the warning box after a while.
this._timeoutHide = new this.Timeout(() => {
this._state = "hidden";
}, gPrefService.getIntPref("full-screen-api.warning.timeout"));
// The timeout to show the warning box when the pointer is at the top
this._timeoutShow = new this.Timeout(() => {
this._state = "ontop";
this._timeoutHide.start();
}, gPrefService.getIntPref("full-screen-api.warning.delay"));
}
// Set the strings on the fullscreen warning UI.
if (aOrigin) {
this._origin = aOrigin;
}
let uri = BrowserUtils.makeURI(this._origin);
let host = null;
try {
host = uri.host;
} catch (e) { }
let textElem = document.getElementById("fullscreen-domain-text");
if (!host) {
textElem.setAttribute("hidden", true);
} else {
textElem.removeAttribute("hidden");
let hostElem = document.getElementById("fullscreen-domain");
// Document's principal's URI has a host. Display a warning including it.
let utils = {};
Cu.import("resource://gre/modules/DownloadUtils.jsm", utils);
hostElem.textContent = utils.DownloadUtils.getURIHost(uri.spec)[0];
}
this._element.className = gIdentityHandler.fullscreenWarningClassName;
// User should be allowed to explicitly disable
// the prompt if they really want.
if (this._timeoutHide.delay <= 0) {
return;
}
// Explicitly set the last state to hidden to avoid the warning
// box being hidden immediately because of mousemove.
this._state = "onscreen";
this._lastState = "hidden";
this._timeoutHide.start();
},
close: function() {
if (!this._element) {
return;
}
// Cancel any pending timeout
this._timeoutHide.cancel();
this._timeoutShow.cancel();
// Reset state of the warning box
this._state = "hidden";
this._element.setAttribute("hidden", true);
// Remove all event listeners
this._element.removeEventListener("transitionend", this);
window.removeEventListener("mousemove", this, true);
// Clear fields
this._element = null;
this._timeoutHide = null;
this._timeoutShow = null;
// Ensure focus switches away from the (now hidden) warning box.
// If the user clicked buttons in the warning box, it would have
// been focused, and any key events would be directed at the (now
// hidden) chrome document instead of the target document.
gBrowser.selectedBrowser.focus();
},
// State could be one of "onscreen", "ontop", "hiding", and
// "hidden". Setting the state to "onscreen" and "ontop" takes
// effect immediately, while setting it to "hidden" actually
// turns the state to "hiding" before the transition finishes.
_lastState: null,
_STATES: ["hidden", "ontop", "onscreen"],
get _state() {
for (let state of this._STATES) {
if (this._element.hasAttribute(state)) {
return state;
}
}
return "hiding";
},
set _state(newState) {
let currentState = this._state;
if (currentState == newState) {
return;
}
if (currentState != "hiding") {
this._lastState = currentState;
this._element.removeAttribute(currentState);
}
if (newState != "hidden") {
if (currentState != "hidden") {
this._element.setAttribute(newState, true);
} else {
// When the previous state is hidden, the display was none,
// thus no box was constructed. We need to wait for the new
// display value taking effect first, otherwise, there won't
// be any transition. Since requestAnimationFrame callback is
// generally triggered before any style flush and layout, we
// should wait for the second animation frame.
requestAnimationFrame(() => {
requestAnimationFrame(() => {
if (this._element) {
this._element.setAttribute(newState, true);
}
});
});
}
}
},
handleEvent: function(event) {
switch (event.type) {
case "mousemove": {
let state = this._state;
if (state == "hidden") {
// If the warning box is currently hidden, show it after
// a short delay if the pointer is at the top.
if (event.clientY != 0) {
this._timeoutShow.cancel();
} else if (this._timeoutShow.delay >= 0) {
this._timeoutShow.start();
}
} else {
let elemRect = this._element.getBoundingClientRect();
if (state == "hiding" && this._lastState != "hidden") {
// If we are on the hiding transition, and the pointer
// moved near the box, restore to the previous state.
if (event.clientY <= elemRect.bottom + 50) {
this._state = this._lastState;
this._timeoutHide.start();
}
} else if (state == "ontop" || this._lastState != "hidden") {
// State being "ontop" or the previous state not being
// "hidden" indicates this current warning box is shown
// in response to user's action. Hide it immediately when
// the pointer leaves that area.
if (event.clientY > elemRect.bottom + 50) {
this._state = "hidden";
this._timeoutHide.cancel();
}
}
}
break;
}
case "transitionend": {
if (this._state == "hiding") {
this._element.setAttribute("hidden", true);
}
break;
}
}
}
},
showNavToolbox: function(trackMouse = true) {
this._fullScrToggler.hidden = true;
gNavToolbox.removeAttribute("fullscreenShouldAnimate");
gNavToolbox.style.marginTop = "";
if (!this._isChromeCollapsed) {
return;
}
// Track whether mouse is near the toolbox
if (trackMouse && !this.useLionFullScreen) {
let rect = gBrowser.mPanelContainer.getBoundingClientRect();
this._mouseTargetRect = {
top: rect.top + 50,
bottom: rect.bottom,
left: rect.left,
right: rect.right
};
MousePosTracker.addListener(this);
}
this._isChromeCollapsed = false;
},
hideNavToolbox: function (aAnimate = false) {
if (this._isChromeCollapsed || !this._safeToCollapse())
return;
this._fullScrToggler.hidden = false;
if (aAnimate && gPrefService.getBoolPref("browser.fullscreen.animate")) {
gNavToolbox.setAttribute("fullscreenShouldAnimate", true);
// Hide the fullscreen toggler until the transition ends.
let listener = () => {
gNavToolbox.removeEventListener("transitionend", listener, true);
if (this._isChromeCollapsed)
this._fullScrToggler.hidden = false;
};
gNavToolbox.addEventListener("transitionend", listener, true);
this._fullScrToggler.hidden = true;
}
gNavToolbox.style.marginTop =
-gNavToolbox.getBoundingClientRect().height + "px";
this._isChromeCollapsed = true;
MousePosTracker.removeListener(this);
},
_updateToolbars: function (aEnterFS) {
for (let el of document.querySelectorAll("toolbar[fullscreentoolbar=true]")) {
if (aEnterFS) {
// Give the main nav bar and the tab bar the fullscreen context menu,
// otherwise remove context menu to prevent breakage
el.setAttribute("saved-context", el.getAttribute("context"));
if (el.id == "nav-bar" || el.id == "TabsToolbar")
el.setAttribute("context", "autohide-context");
else
el.removeAttribute("context");
// Set the inFullscreen attribute to allow specific styling
// in fullscreen mode
el.setAttribute("inFullscreen", true);
} else {
if (el.hasAttribute("saved-context")) {
el.setAttribute("context", el.getAttribute("saved-context"));
el.removeAttribute("saved-context");
}
el.removeAttribute("inFullscreen");
}
}
ToolbarIconColor.inferFromText();
// For Lion fullscreen, all fullscreen controls are hidden, don't
// bother to touch them. If we don't stop here, the following code
// could cause the native fullscreen button be shown unexpectedly.
// See bug 1165570.
if (this.useLionFullScreen) {
return;
}
var fullscreenctls = document.getElementById("window-controls");
var navbar = document.getElementById("nav-bar");
var ctlsOnTabbar = window.toolbar.visible;
if (fullscreenctls.parentNode == navbar && ctlsOnTabbar) {
fullscreenctls.removeAttribute("flex");
document.getElementById("TabsToolbar").appendChild(fullscreenctls);
}
else if (fullscreenctls.parentNode.id == "TabsToolbar" && !ctlsOnTabbar) {
fullscreenctls.setAttribute("flex", "1");
navbar.appendChild(fullscreenctls);
}
fullscreenctls.hidden = !aEnterFS;
}
};
XPCOMUtils.defineLazyGetter(FullScreen, "useLionFullScreen", function() {
// We'll only use OS X Lion full screen if we're
// * on OS X
// * on Lion or higher (Darwin 11+)
// * have fullscreenbutton="true"
return AppConstants.isPlatformAndVersionAtLeast("macosx", 11) &&
document.documentElement.getAttribute("fullscreenbutton") == "true";
});