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/* 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/. */
"use strict";
var PluginHelper = {
showDoorHanger: function(aTab) {
if (!aTab.browser)
return;
// Even though we may not end up showing a doorhanger, this flag
// lets us know that we've tried to show a doorhanger.
aTab.shouldShowPluginDoorhanger = false;
let uri = aTab.browser.currentURI;
// If the user has previously set a plugins permission for this website,
// either play or don't play the plugins instead of showing a doorhanger.
let permValue = Services.perms.testPermission(uri, "plugins");
if (permValue != Services.perms.UNKNOWN_ACTION) {
if (permValue == Services.perms.ALLOW_ACTION)
PluginHelper.playAllPlugins(aTab.browser.contentWindow);
return;
}
let message = Strings.browser.formatStringFromName("clickToPlayPlugins.message2",
[uri.host], 1);
let buttons = [
{
label: Strings.browser.GetStringFromName("clickToPlayPlugins.dontActivate"),
callback: function(aChecked) {
// If the user checked "Don't ask again", make a permanent exception
if (aChecked)
Services.perms.add(uri, "plugins", Ci.nsIPermissionManager.DENY_ACTION);
// Other than that, do nothing
}
},
{
label: Strings.browser.GetStringFromName("clickToPlayPlugins.activate"),
callback: function(aChecked) {
// If the user checked "Don't ask again", make a permanent exception
if (aChecked)
Services.perms.add(uri, "plugins", Ci.nsIPermissionManager.ALLOW_ACTION);
PluginHelper.playAllPlugins(aTab.browser.contentWindow);
},
positive: true
}
];
// Add a checkbox with a "Don't ask again" message if the uri contains a
// host. Adding a permanent exception will fail if host is not present.
let options = uri.host ? { checkbox: Strings.browser.GetStringFromName("clickToPlayPlugins.dontAskAgain") } : {};
NativeWindow.doorhanger.show(message, "ask-to-play-plugins", buttons, aTab.id, options);
},
delayAndShowDoorHanger: function(aTab) {
// To avoid showing the doorhanger if there are also visible plugin
// overlays on the page, delay showing the doorhanger to check if
// visible plugins get added in the near future.
if (!aTab.pluginDoorhangerTimeout) {
aTab.pluginDoorhangerTimeout = setTimeout(function() {
if (this.shouldShowPluginDoorhanger) {
PluginHelper.showDoorHanger(this);
}
}.bind(aTab), 500);
}
},
playAllPlugins: function(aContentWindow) {
let cwu = aContentWindow.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils);
// XXX not sure if we should enable plugins for the parent documents...
let plugins = cwu.plugins;
if (!plugins || !plugins.length)
return;
plugins.forEach(this.playPlugin);
},
playPlugin: function(plugin) {
let objLoadingContent = plugin.QueryInterface(Ci.nsIObjectLoadingContent);
if (!objLoadingContent.activated)
objLoadingContent.playPlugin();
},
getPluginPreference: function getPluginPreference() {
let pluginDisable = Services.prefs.getBoolPref("plugin.disable");
if (pluginDisable)
return "0";
let state = Services.prefs.getIntPref("plugin.default.state");
return state == Ci.nsIPluginTag.STATE_CLICKTOPLAY ? "2" : "1";
},
setPluginPreference: function setPluginPreference(aValue) {
switch (aValue) {
case "0": // Enable Plugins = No
Services.prefs.setBoolPref("plugin.disable", true);
Services.prefs.clearUserPref("plugin.default.state");
break;
case "1": // Enable Plugins = Yes
Services.prefs.clearUserPref("plugin.disable");
Services.prefs.setIntPref("plugin.default.state", Ci.nsIPluginTag.STATE_ENABLED);
break;
case "2": // Enable Plugins = Tap to Play (default)
Services.prefs.clearUserPref("plugin.disable");
Services.prefs.clearUserPref("plugin.default.state");
break;
}
},
// Copied from /browser/base/content/browser.js
isTooSmall : function (plugin, overlay) {
// Is the <object>'s size too small to hold what we want to show?
let pluginRect = plugin.getBoundingClientRect();
// XXX bug 446693. The text-shadow on the submitted-report text at
// the bottom causes scrollHeight to be larger than it should be.
let overflows = (overlay.scrollWidth > pluginRect.width) ||
(overlay.scrollHeight - 5 > pluginRect.height);
return overflows;
},
getPluginMimeType: function (plugin) {
var tagMimetype = plugin.actualType;
if (tagMimetype == "") {
tagMimetype = plugin.type;
}
return tagMimetype;
},
handlePluginBindingAttached: function (aTab, aEvent) {
let plugin = aEvent.target;
let doc = plugin.ownerDocument;
let overlay = doc.getAnonymousElementByAttribute(plugin, "anonid", "main");
if (!overlay || overlay._bindingHandled) {
return;
}
overlay._bindingHandled = true;
let eventType = PluginHelper._getBindingType(plugin);
if (!eventType) {
// Not all bindings have handlers
return;
}
switch (eventType) {
case "PluginClickToPlay": {
// Check if plugins have already been activated for this page, or if
// the user has set a permission to always play plugins on the site
if (aTab.clickToPlayPluginsActivated ||
Services.perms.testPermission(aTab.browser.currentURI, "plugins") ==
Services.perms.ALLOW_ACTION) {
PluginHelper.playPlugin(plugin);
return;
}
// If the plugin is hidden, or if the overlay is too small, show a
// doorhanger notification
if (PluginHelper.isTooSmall(plugin, overlay)) {
PluginHelper.delayAndShowDoorHanger(aTab);
} else {
// There's a large enough visible overlay that we don't need to show
// the doorhanger.
aTab.shouldShowPluginDoorhanger = false;
overlay.classList.add("visible");
}
// Add click to play listener to the overlay
overlay.addEventListener("click", function(e) {
if (!e.isTrusted)
return;
e.preventDefault();
let win = e.target.ownerDocument.defaultView.top;
let tab = BrowserApp.getTabForWindow(win);
tab.clickToPlayPluginsActivated = true;
PluginHelper.playAllPlugins(win);
NativeWindow.doorhanger.hide("ask-to-play-plugins", tab.id);
}, true);
// Add handlers for over- and underflow in case the plugin gets resized
plugin.addEventListener("overflow", function(event) {
overlay.classList.remove("visible");
PluginHelper.delayAndShowDoorHanger(aTab);
});
plugin.addEventListener("underflow", function(event) {
// This is also triggered if only one dimension underflows,
// the other dimension might still overflow
if (!PluginHelper.isTooSmall(plugin, overlay)) {
overlay.classList.add("visible");
}
});
break;
}
}
},
// Helper to get the binding handler type from a plugin object
_getBindingType: function(plugin) {
if (!(plugin instanceof Ci.nsIObjectLoadingContent))
return null;
switch (plugin.pluginFallbackType) {
case Ci.nsIObjectLoadingContent.PLUGIN_UNSUPPORTED:
return "PluginNotFound";
case Ci.nsIObjectLoadingContent.PLUGIN_CLICK_TO_PLAY:
return "PluginClickToPlay";
default:
// Not all states map to a handler
return null;
}
}
};
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