606 lines
18 KiB
JavaScript
606 lines
18 KiB
JavaScript
/* -*- 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/. */
|
|
|
|
/**
|
|
* Handles the indicator that displays the progress of ongoing downloads, which
|
|
* is also used as the anchor for the downloads panel.
|
|
*
|
|
* This module includes the following constructors and global objects:
|
|
*
|
|
* DownloadsButton
|
|
* Main entry point for the downloads indicator. Depending on how the toolbars
|
|
* have been customized, this object determines if we should show a fully
|
|
* functional indicator, a placeholder used during customization and in the
|
|
* customization palette, or a neutral view as a temporary anchor for the
|
|
* downloads panel.
|
|
*
|
|
* DownloadsIndicatorView
|
|
* Builds and updates the actual downloads status widget, responding to changes
|
|
* in the global status data, or provides a neutral view if the indicator is
|
|
* removed from the toolbars and only used as a temporary anchor. In addition,
|
|
* handles the user interaction events raised by the widget.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsButton
|
|
|
|
/**
|
|
* Main entry point for the downloads indicator. Depending on how the toolbars
|
|
* have been customized, this object determines if we should show a fully
|
|
* functional indicator, a placeholder used during customization and in the
|
|
* customization palette, or a neutral view as a temporary anchor for the
|
|
* downloads panel.
|
|
*/
|
|
const DownloadsButton = {
|
|
/**
|
|
* Location of the indicator overlay.
|
|
*/
|
|
get kIndicatorOverlay() {
|
|
return "chrome://browser/content/downloads/indicatorOverlay.xul";
|
|
},
|
|
|
|
/**
|
|
* Returns a reference to the downloads button position placeholder, or null
|
|
* if not available because it has been removed from the toolbars.
|
|
*/
|
|
get _placeholder() {
|
|
return document.getElementById("downloads-button");
|
|
},
|
|
|
|
/**
|
|
* This function is called asynchronously just after window initialization.
|
|
*
|
|
* NOTE: This function should limit the input/output it performs to improve
|
|
* startup time.
|
|
*/
|
|
initializeIndicator() {
|
|
DownloadsIndicatorView.ensureInitialized();
|
|
},
|
|
|
|
/**
|
|
* Indicates whether toolbar customization is in progress.
|
|
*/
|
|
_customizing: false,
|
|
|
|
/**
|
|
* This function is called when toolbar customization starts.
|
|
*
|
|
* During customization, we never show the actual download progress indication
|
|
* or the event notifications, but we show a neutral placeholder. The neutral
|
|
* placeholder is an ordinary button defined in the browser window that can be
|
|
* moved freely between the toolbars and the customization palette.
|
|
*/
|
|
customizeStart() {
|
|
// Prevent the indicator from being displayed as a temporary anchor
|
|
// during customization, even if requested using the getAnchor method.
|
|
this._customizing = true;
|
|
this._anchorRequested = false;
|
|
},
|
|
|
|
/**
|
|
* This function is called when toolbar customization ends.
|
|
*/
|
|
customizeDone() {
|
|
this._customizing = false;
|
|
DownloadsIndicatorView.afterCustomize();
|
|
},
|
|
|
|
/**
|
|
* Determines the position where the indicator should appear, and moves its
|
|
* associated element to the new position.
|
|
*
|
|
* @return Anchor element, or null if the indicator is not visible.
|
|
*/
|
|
_getAnchorInternal() {
|
|
let indicator = DownloadsIndicatorView.indicator;
|
|
if (!indicator) {
|
|
// Exit now if the indicator overlay isn't loaded yet, or if the button
|
|
// is not in the document.
|
|
return null;
|
|
}
|
|
|
|
indicator.open = this._anchorRequested;
|
|
|
|
let widget = CustomizableUI.getWidget("downloads-button")
|
|
.forWindow(window);
|
|
// Determine if the indicator is located on an invisible toolbar.
|
|
if (!isElementVisible(indicator.parentNode) && !widget.overflowed) {
|
|
return null;
|
|
}
|
|
|
|
return DownloadsIndicatorView.indicatorAnchor;
|
|
},
|
|
|
|
/**
|
|
* Checks whether the indicator is, or will soon be visible in the browser
|
|
* window.
|
|
*
|
|
* @param aCallback
|
|
* Called once the indicator overlay has loaded. Gets a boolean
|
|
* argument representing the indicator visibility.
|
|
*/
|
|
checkIsVisible(aCallback) {
|
|
DownloadsOverlayLoader.ensureOverlayLoaded(this.kIndicatorOverlay, () => {
|
|
if (!this._placeholder) {
|
|
aCallback(false);
|
|
} else {
|
|
let element = DownloadsIndicatorView.indicator || this._placeholder;
|
|
aCallback(isElementVisible(element.parentNode));
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Indicates whether we should try and show the indicator temporarily as an
|
|
* anchor for the panel, even if the indicator would be hidden by default.
|
|
*/
|
|
_anchorRequested: false,
|
|
|
|
/**
|
|
* Ensures that there is an anchor available for the panel.
|
|
*
|
|
* @param aCallback
|
|
* Called when the anchor is available, passing the element where the
|
|
* panel should be anchored, or null if an anchor is not available (for
|
|
* example because both the tab bar and the navigation bar are hidden).
|
|
*/
|
|
getAnchor(aCallback) {
|
|
// Do not allow anchoring the panel to the element while customizing.
|
|
if (this._customizing) {
|
|
aCallback(null);
|
|
return;
|
|
}
|
|
|
|
DownloadsOverlayLoader.ensureOverlayLoaded(this.kIndicatorOverlay, () => {
|
|
this._anchorRequested = true;
|
|
aCallback(this._getAnchorInternal());
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Allows the temporary anchor to be hidden.
|
|
*/
|
|
releaseAnchor() {
|
|
this._anchorRequested = false;
|
|
this._getAnchorInternal();
|
|
},
|
|
|
|
get _tabsToolbar() {
|
|
delete this._tabsToolbar;
|
|
return this._tabsToolbar = document.getElementById("TabsToolbar");
|
|
},
|
|
|
|
get _navBar() {
|
|
delete this._navBar;
|
|
return this._navBar = document.getElementById("nav-bar");
|
|
}
|
|
};
|
|
|
|
Object.defineProperty(this, "DownloadsButton", {
|
|
value: DownloadsButton,
|
|
enumerable: true,
|
|
writable: false
|
|
});
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//// DownloadsIndicatorView
|
|
|
|
/**
|
|
* Builds and updates the actual downloads status widget, responding to changes
|
|
* in the global status data, or provides a neutral view if the indicator is
|
|
* removed from the toolbars and only used as a temporary anchor. In addition,
|
|
* handles the user interaction events raised by the widget.
|
|
*/
|
|
const DownloadsIndicatorView = {
|
|
/**
|
|
* True when the view is connected with the underlying downloads data.
|
|
*/
|
|
_initialized: false,
|
|
|
|
/**
|
|
* True when the user interface elements required to display the indicator
|
|
* have finished loading in the browser window, and can be referenced.
|
|
*/
|
|
_operational: false,
|
|
|
|
/**
|
|
* Prepares the downloads indicator to be displayed.
|
|
*/
|
|
ensureInitialized() {
|
|
if (this._initialized) {
|
|
return;
|
|
}
|
|
this._initialized = true;
|
|
|
|
window.addEventListener("unload", this.onWindowUnload, false);
|
|
DownloadsCommon.getIndicatorData(window).addView(this);
|
|
},
|
|
|
|
/**
|
|
* Frees the internal resources related to the indicator.
|
|
*/
|
|
ensureTerminated() {
|
|
if (!this._initialized) {
|
|
return;
|
|
}
|
|
this._initialized = false;
|
|
|
|
window.removeEventListener("unload", this.onWindowUnload, false);
|
|
DownloadsCommon.getIndicatorData(window).removeView(this);
|
|
|
|
// Reset the view properties, so that a neutral indicator is displayed if we
|
|
// are visible only temporarily as an anchor.
|
|
this.counter = "";
|
|
this.percentComplete = 0;
|
|
this.paused = false;
|
|
this.attention = DownloadsCommon.ATTENTION_NONE;
|
|
},
|
|
|
|
/**
|
|
* Ensures that the user interface elements required to display the indicator
|
|
* are loaded, then invokes the given callback.
|
|
*/
|
|
_ensureOperational(aCallback) {
|
|
if (this._operational) {
|
|
if (aCallback) {
|
|
aCallback();
|
|
}
|
|
return;
|
|
}
|
|
|
|
// If we don't have a _placeholder, there's no chance that the overlay
|
|
// will load correctly: bail (and don't set _operational to true!)
|
|
if (!DownloadsButton._placeholder) {
|
|
return;
|
|
}
|
|
|
|
DownloadsOverlayLoader.ensureOverlayLoaded(
|
|
DownloadsButton.kIndicatorOverlay,
|
|
() => {
|
|
this._operational = true;
|
|
|
|
// If the view is initialized, we need to update the elements now that
|
|
// they are finally available in the document.
|
|
if (this._initialized) {
|
|
DownloadsCommon.getIndicatorData(window).refreshView(this);
|
|
}
|
|
|
|
if (aCallback) {
|
|
aCallback();
|
|
}
|
|
});
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Direct control functions
|
|
|
|
/**
|
|
* Set while we are waiting for a notification to fade out.
|
|
*/
|
|
_notificationTimeout: null,
|
|
|
|
/**
|
|
* Check if the panel containing aNode is open.
|
|
* @param aNode
|
|
* the node whose panel we're interested in.
|
|
*/
|
|
_isAncestorPanelOpen(aNode) {
|
|
while (aNode && aNode.localName != "panel") {
|
|
aNode = aNode.parentNode;
|
|
}
|
|
return aNode && aNode.state == "open";
|
|
},
|
|
|
|
/**
|
|
* If the status indicator is visible in its assigned position, shows for a
|
|
* brief time a visual notification of a relevant event, like a new download.
|
|
*
|
|
* @param aType
|
|
* Set to "start" for new downloads, "finish" for completed downloads.
|
|
*/
|
|
showEventNotification(aType) {
|
|
if (!this._initialized) {
|
|
return;
|
|
}
|
|
|
|
if (!DownloadsCommon.animateNotifications) {
|
|
return;
|
|
}
|
|
|
|
// No need to show visual notification if the panel is visible.
|
|
if (DownloadsPanel.isPanelShowing) {
|
|
return;
|
|
}
|
|
|
|
let anchor = DownloadsButton._placeholder;
|
|
let widgetGroup = CustomizableUI.getWidget("downloads-button");
|
|
let widget = widgetGroup.forWindow(window);
|
|
if (widget.overflowed || widgetGroup.areaType == CustomizableUI.TYPE_MENU_PANEL) {
|
|
if (anchor && this._isAncestorPanelOpen(anchor)) {
|
|
// If the containing panel is open, don't do anything, because the
|
|
// notification would appear under the open panel. See
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=984023
|
|
return;
|
|
}
|
|
|
|
// Otherwise, try to use the anchor of the panel:
|
|
anchor = widget.anchor;
|
|
}
|
|
if (!anchor || !isElementVisible(anchor.parentNode)) {
|
|
// Our container isn't visible, so can't show the animation:
|
|
return;
|
|
}
|
|
|
|
if (this._notificationTimeout) {
|
|
clearTimeout(this._notificationTimeout);
|
|
}
|
|
|
|
// The notification element is positioned to show in the same location as
|
|
// the downloads button. It's not in the downloads button itself in order to
|
|
// be able to anchor the notification elsewhere if required, and to ensure
|
|
// the notification isn't clipped by overflow properties of the anchor's
|
|
// container.
|
|
let notifier = this.notifier;
|
|
if (notifier.style.transform == '') {
|
|
let anchorRect = anchor.getBoundingClientRect();
|
|
let notifierRect = notifier.getBoundingClientRect();
|
|
let topDiff = anchorRect.top - notifierRect.top;
|
|
let leftDiff = anchorRect.left - notifierRect.left;
|
|
let heightDiff = anchorRect.height - notifierRect.height;
|
|
let widthDiff = anchorRect.width - notifierRect.width;
|
|
let translateX = (leftDiff + .5 * widthDiff) + "px";
|
|
let translateY = (topDiff + .5 * heightDiff) + "px";
|
|
notifier.style.transform = "translate(" + translateX + ", " + translateY + ")";
|
|
}
|
|
notifier.setAttribute("notification", aType);
|
|
this._notificationTimeout = setTimeout(() => {
|
|
notifier.removeAttribute("notification");
|
|
notifier.style.transform = '';
|
|
}, 1000);
|
|
},
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// Callback functions from DownloadsIndicatorData
|
|
|
|
/**
|
|
* Indicates whether the indicator should be shown because there are some
|
|
* downloads to be displayed.
|
|
*/
|
|
set hasDownloads(aValue) {
|
|
if (this._hasDownloads != aValue || (!this._operational && aValue)) {
|
|
this._hasDownloads = aValue;
|
|
|
|
// If there is at least one download, ensure that the view elements are
|
|
if (aValue) {
|
|
this._ensureOperational();
|
|
}
|
|
}
|
|
return aValue;
|
|
},
|
|
get hasDownloads() {
|
|
return this._hasDownloads;
|
|
},
|
|
_hasDownloads: false,
|
|
|
|
/**
|
|
* Status text displayed in the indicator. If this is set to an empty value,
|
|
* then the small downloads icon is displayed instead of the text.
|
|
*/
|
|
set counter(aValue) {
|
|
if (!this._operational) {
|
|
return this._counter;
|
|
}
|
|
|
|
if (this._counter !== aValue) {
|
|
this._counter = aValue;
|
|
if (this._counter)
|
|
this.indicator.setAttribute("counter", "true");
|
|
else
|
|
this.indicator.removeAttribute("counter");
|
|
// We have to set the attribute instead of using the property because the
|
|
// XBL binding isn't applied if the element is invisible for any reason.
|
|
this._indicatorCounter.setAttribute("value", aValue);
|
|
}
|
|
return aValue;
|
|
},
|
|
_counter: null,
|
|
|
|
/**
|
|
* Progress indication to display, from 0 to 100, or -1 if unknown. The
|
|
* progress bar is hidden if the current progress is unknown and no status
|
|
* text is set in the "counter" property.
|
|
*/
|
|
set percentComplete(aValue) {
|
|
if (!this._operational) {
|
|
return this._percentComplete;
|
|
}
|
|
|
|
if (this._percentComplete !== aValue) {
|
|
this._percentComplete = aValue;
|
|
if (this._percentComplete >= 0)
|
|
this.indicator.setAttribute("progress", "true");
|
|
else
|
|
this.indicator.removeAttribute("progress");
|
|
// We have to set the attribute instead of using the property because the
|
|
// XBL binding isn't applied if the element is invisible for any reason.
|
|
this._indicatorProgress.setAttribute("value", Math.max(aValue, 0));
|
|
}
|
|
return aValue;
|
|
},
|
|
_percentComplete: null,
|
|
|
|
/**
|
|
* Indicates whether the progress won't advance because of a paused state.
|
|
* Setting this property forces a paused progress bar to be displayed, even if
|
|
* the current progress information is unavailable.
|
|
*/
|
|
set paused(aValue) {
|
|
if (!this._operational) {
|
|
return this._paused;
|
|
}
|
|
|
|
if (this._paused != aValue) {
|
|
this._paused = aValue;
|
|
if (this._paused) {
|
|
this.indicator.setAttribute("paused", "true")
|
|
} else {
|
|
this.indicator.removeAttribute("paused");
|
|
}
|
|
}
|
|
return aValue;
|
|
},
|
|
_paused: false,
|
|
|
|
/**
|
|
* Set when the indicator should draw user attention to itself.
|
|
*/
|
|
set attention(aValue) {
|
|
if (!this._operational) {
|
|
return this._attention;
|
|
}
|
|
|
|
if (this._attention != aValue) {
|
|
this._attention = aValue;
|
|
|
|
// Check if the downloads button is in the menu panel, to determine which
|
|
// button needs to get a badge.
|
|
let widgetGroup = CustomizableUI.getWidget("downloads-button");
|
|
let inMenu = widgetGroup.areaType == CustomizableUI.TYPE_MENU_PANEL;
|
|
|
|
if (aValue == DownloadsCommon.ATTENTION_NONE) {
|
|
this.indicator.removeAttribute("attention");
|
|
if (inMenu) {
|
|
gMenuButtonBadgeManager.removeBadge(gMenuButtonBadgeManager.BADGEID_DOWNLOAD);
|
|
}
|
|
} else {
|
|
this.indicator.setAttribute("attention", aValue);
|
|
if (inMenu) {
|
|
let badgeClass = "download-" + aValue;
|
|
gMenuButtonBadgeManager.addBadge(gMenuButtonBadgeManager.BADGEID_DOWNLOAD, badgeClass);
|
|
}
|
|
}
|
|
}
|
|
return aValue;
|
|
},
|
|
_attention: DownloadsCommon.ATTENTION_NONE,
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
//// User interface event functions
|
|
|
|
onWindowUnload() {
|
|
// This function is registered as an event listener, we can't use "this".
|
|
DownloadsIndicatorView.ensureTerminated();
|
|
},
|
|
|
|
onCommand(aEvent) {
|
|
// If the downloads button is in the menu panel, open the Library
|
|
let widgetGroup = CustomizableUI.getWidget("downloads-button");
|
|
if (widgetGroup.areaType == CustomizableUI.TYPE_MENU_PANEL) {
|
|
DownloadsPanel.showDownloadsHistory();
|
|
} else {
|
|
DownloadsPanel.showPanel();
|
|
}
|
|
|
|
aEvent.stopPropagation();
|
|
},
|
|
|
|
onDragOver(aEvent) {
|
|
browserDragAndDrop.dragOver(aEvent);
|
|
},
|
|
|
|
onDrop(aEvent) {
|
|
let dt = aEvent.dataTransfer;
|
|
// If dragged item is from our source, do not try to
|
|
// redownload already downloaded file.
|
|
if (dt.mozGetDataAt("application/x-moz-file", 0))
|
|
return;
|
|
|
|
let links = browserDragAndDrop.dropLinks(aEvent);
|
|
if (!links.length)
|
|
return;
|
|
let sourceDoc = dt.mozSourceNode ? dt.mozSourceNode.ownerDocument : document;
|
|
let handled = false;
|
|
for (let link of links) {
|
|
if (link.url.startsWith("about:"))
|
|
continue;
|
|
saveURL(link.url, link.name, null, true, true, null, sourceDoc);
|
|
handled = true;
|
|
}
|
|
if (handled) {
|
|
aEvent.preventDefault();
|
|
}
|
|
},
|
|
|
|
_indicator: null,
|
|
__indicatorCounter: null,
|
|
__indicatorProgress: null,
|
|
|
|
/**
|
|
* Returns a reference to the main indicator element, or null if the element
|
|
* is not present in the browser window yet.
|
|
*/
|
|
get indicator() {
|
|
if (this._indicator) {
|
|
return this._indicator;
|
|
}
|
|
|
|
let indicator = document.getElementById("downloads-button");
|
|
if (!indicator || indicator.getAttribute("indicator") != "true") {
|
|
return null;
|
|
}
|
|
|
|
return this._indicator = indicator;
|
|
},
|
|
|
|
get indicatorAnchor() {
|
|
let widget = CustomizableUI.getWidget("downloads-button")
|
|
.forWindow(window);
|
|
if (widget.overflowed) {
|
|
return widget.anchor;
|
|
}
|
|
return document.getElementById("downloads-indicator-anchor");
|
|
},
|
|
|
|
get _indicatorCounter() {
|
|
return this.__indicatorCounter ||
|
|
(this.__indicatorCounter = document.getElementById("downloads-indicator-counter"));
|
|
},
|
|
|
|
get _indicatorProgress() {
|
|
return this.__indicatorProgress ||
|
|
(this.__indicatorProgress = document.getElementById("downloads-indicator-progress"));
|
|
},
|
|
|
|
get notifier() {
|
|
return this._notifier ||
|
|
(this._notifier = document.getElementById("downloads-notification-anchor"));
|
|
},
|
|
|
|
_onCustomizedAway() {
|
|
this._indicator = null;
|
|
this.__indicatorCounter = null;
|
|
this.__indicatorProgress = null;
|
|
},
|
|
|
|
afterCustomize() {
|
|
// If the cached indicator is not the one currently in the document,
|
|
// invalidate our references
|
|
if (this._indicator != document.getElementById("downloads-button")) {
|
|
this._onCustomizedAway();
|
|
this._operational = false;
|
|
this.ensureTerminated();
|
|
this.ensureInitialized();
|
|
}
|
|
},
|
|
};
|
|
|
|
Object.defineProperty(this, "DownloadsIndicatorView", {
|
|
value: DownloadsIndicatorView,
|
|
enumerable: true,
|
|
writable: false
|
|
});
|