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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "modules/notifications/NotificationResourcesLoader.h"
#include "platform/Histogram.h"
#include "platform/weborigin/KURL.h"
#include "public/platform/modules/notifications/WebNotificationData.h"
#include "public/platform/modules/notifications/WebNotificationResources.h"
#include "wtf/CurrentTime.h"
#include "wtf/Threading.h"
#include <cmath>
namespace blink {
NotificationResourcesLoader::NotificationResourcesLoader(
std::unique_ptr<CompletionCallback> completionCallback)
: m_started(false),
m_completionCallback(std::move(completionCallback)),
m_pendingRequestCount(0) {
DCHECK(m_completionCallback);
}
NotificationResourcesLoader::~NotificationResourcesLoader() {}
void NotificationResourcesLoader::start(
ExecutionContext* executionContext,
const WebNotificationData& notificationData) {
DCHECK(!m_started);
m_started = true;
size_t numActions = notificationData.actions.size();
m_pendingRequestCount = 3 /* image, icon, badge */ + numActions;
// TODO(johnme): ensure image is not loaded when it will not be used.
// TODO(mvanouwerkerk): ensure no badge is loaded when it will not be used.
loadImage(executionContext, NotificationImageLoader::Type::Image,
notificationData.image,
WTF::bind(&NotificationResourcesLoader::didLoadImage,
wrapWeakPersistent(this)));
loadImage(executionContext, NotificationImageLoader::Type::Icon,
notificationData.icon,
WTF::bind(&NotificationResourcesLoader::didLoadIcon,
wrapWeakPersistent(this)));
loadImage(executionContext, NotificationImageLoader::Type::Badge,
notificationData.badge,
WTF::bind(&NotificationResourcesLoader::didLoadBadge,
wrapWeakPersistent(this)));
m_actionIcons.resize(numActions);
for (size_t i = 0; i < numActions; i++)
loadImage(executionContext, NotificationImageLoader::Type::ActionIcon,
notificationData.actions[i].icon,
WTF::bind(&NotificationResourcesLoader::didLoadActionIcon,
wrapWeakPersistent(this), i));
}
std::unique_ptr<WebNotificationResources>
NotificationResourcesLoader::getResources() const {
std::unique_ptr<WebNotificationResources> resources(
new WebNotificationResources());
resources->image = m_image;
resources->icon = m_icon;
resources->badge = m_badge;
resources->actionIcons = m_actionIcons;
return resources;
}
void NotificationResourcesLoader::stop() {
for (auto imageLoader : m_imageLoaders)
imageLoader->stop();
}
DEFINE_TRACE(NotificationResourcesLoader) {
visitor->trace(m_imageLoaders);
}
void NotificationResourcesLoader::loadImage(
ExecutionContext* executionContext,
NotificationImageLoader::Type type,
const KURL& url,
std::unique_ptr<NotificationImageLoader::ImageCallback> imageCallback) {
if (url.isNull() || url.isEmpty() || !url.isValid()) {
didFinishRequest();
return;
}
NotificationImageLoader* imageLoader = new NotificationImageLoader(type);
m_imageLoaders.push_back(imageLoader);
imageLoader->start(executionContext, url, std::move(imageCallback));
}
void NotificationResourcesLoader::didLoadImage(const SkBitmap& image) {
m_image = NotificationImageLoader::scaleDownIfNeeded(
image, NotificationImageLoader::Type::Image);
didFinishRequest();
}
void NotificationResourcesLoader::didLoadIcon(const SkBitmap& image) {
m_icon = NotificationImageLoader::scaleDownIfNeeded(
image, NotificationImageLoader::Type::Icon);
didFinishRequest();
}
void NotificationResourcesLoader::didLoadBadge(const SkBitmap& image) {
m_badge = NotificationImageLoader::scaleDownIfNeeded(
image, NotificationImageLoader::Type::Badge);
didFinishRequest();
}
void NotificationResourcesLoader::didLoadActionIcon(size_t actionIndex,
const SkBitmap& image) {
DCHECK_LT(actionIndex, m_actionIcons.size());
m_actionIcons[actionIndex] = NotificationImageLoader::scaleDownIfNeeded(
image, NotificationImageLoader::Type::ActionIcon);
didFinishRequest();
}
void NotificationResourcesLoader::didFinishRequest() {
DCHECK_GT(m_pendingRequestCount, 0);
m_pendingRequestCount--;
if (!m_pendingRequestCount) {
stop();
(*m_completionCallback)(this);
// The |this| pointer may have been deleted now.
}
}
} // namespace blink
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