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// Copyright 2014 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 "chrome/browser/notifications/notification_conversion_helper.h"
#include <string>
#include <vector>
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/stl_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/common/extensions/api/notification_provider.h"
#include "chrome/common/extensions/api/notifications/notification_style.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_skia_rep.h"
#include "ui/gfx/skia_util.h"
void NotificationConversionHelper::NotificationToNotificationOptions(
const Notification& notification,
extensions::api::notifications::NotificationOptions* options) {
// Extract required fields: type, title, message, and icon.
std::string type = MapTypeToString(notification.type());
options->type = extensions::api::notifications::ParseTemplateType(type);
if (!notification.icon().IsEmpty()) {
scoped_ptr<extensions::api::notifications::NotificationBitmap> icon(
new extensions::api::notifications::NotificationBitmap());
GfxImageToNotificationBitmap(¬ification.icon(), icon.get());
options->icon_bitmap = icon.Pass();
}
options->title.reset(
new std::string(base::UTF16ToUTF8(notification.title())));
options->message.reset(
new std::string(base::UTF16ToUTF8(notification.message())));
// Handle optional data provided.
const message_center::RichNotificationData* rich_data =
¬ification.rich_notification_data();
if (!rich_data->small_image.IsEmpty()) {
scoped_ptr<extensions::api::notifications::NotificationBitmap> icon_mask(
new extensions::api::notifications::NotificationBitmap());
GfxImageToNotificationBitmap(&rich_data->small_image, icon_mask.get());
options->app_icon_mask_bitmap = icon_mask.Pass();
}
options->priority.reset(new int(rich_data->priority));
options->is_clickable.reset(new bool(rich_data->clickable));
options->event_time.reset(new double(rich_data->timestamp.ToDoubleT()));
if (!rich_data->context_message.empty())
options->context_message.reset(
new std::string(base::UTF16ToUTF8(rich_data->context_message)));
if (!rich_data->buttons.empty()) {
scoped_ptr<std::vector<
linked_ptr<extensions::api::notifications::NotificationButton> > >
button_list(new std::vector<
linked_ptr<extensions::api::notifications::NotificationButton> >);
for (size_t i = 0; i < rich_data->buttons.size(); i++) {
linked_ptr<extensions::api::notifications::NotificationButton> button(
new extensions::api::notifications::NotificationButton);
button->title = base::UTF16ToUTF8(rich_data->buttons[i].title);
if (!rich_data->buttons[i].icon.IsEmpty()) {
scoped_ptr<extensions::api::notifications::NotificationBitmap> icon(
new extensions::api::notifications::NotificationBitmap());
GfxImageToNotificationBitmap(&rich_data->buttons[i].icon, icon.get());
button->icon_bitmap = icon.Pass();
}
button_list->push_back(button);
}
options->buttons = button_list.Pass();
}
// Only image type notifications should have images.
if (type == "image" && !rich_data->image.IsEmpty()) {
scoped_ptr<extensions::api::notifications::NotificationBitmap> image(
new extensions::api::notifications::NotificationBitmap());
GfxImageToNotificationBitmap(¬ification.image(), image.get());
options->image_bitmap = image.Pass();
} else if (type != "image" && !rich_data->image.IsEmpty()) {
DVLOG(1) << "Only image type notifications should have images.";
}
// Only progress type notifications should have progress bars.
if (type == "progress")
options->progress.reset(new int(rich_data->progress));
else if (rich_data->progress != 0)
DVLOG(1) << "Only progress type notifications should have progress.";
// Only list type notifications should have lists.
if (type == "list" && !rich_data->items.empty()) {
scoped_ptr<std::vector<
linked_ptr<extensions::api::notifications::NotificationItem> > >
list(new std::vector<
linked_ptr<extensions::api::notifications::NotificationItem> >);
for (size_t j = 0; j < rich_data->items.size(); j++) {
linked_ptr<extensions::api::notifications::NotificationItem> item(
new extensions::api::notifications::NotificationItem);
item->title = base::UTF16ToUTF8(rich_data->items[j].title);
item->message = base::UTF16ToUTF8(rich_data->items[j].message);
list->push_back(item);
}
options->items = list.Pass();
} else if (type != "list" && !rich_data->items.empty()) {
DVLOG(1) << "Only list type notifications should have lists.";
}
}
void NotificationConversionHelper::GfxImageToNotificationBitmap(
const gfx::Image* gfx_image,
extensions::api::notifications::NotificationBitmap* notification_bitmap) {
SkBitmap sk_bitmap = gfx_image->AsBitmap();
sk_bitmap.lockPixels();
notification_bitmap->width = sk_bitmap.width();
notification_bitmap->height = sk_bitmap.height();
int pixel_count = sk_bitmap.width() * sk_bitmap.height();
const int BYTES_PER_PIXEL = 4;
uint32_t* bitmap_pixels = sk_bitmap.getAddr32(0, 0);
const unsigned char* bitmap =
reinterpret_cast<const unsigned char*>(bitmap_pixels);
scoped_ptr<std::vector<char>> rgba_bitmap_data(
new std::vector<char>(pixel_count * BYTES_PER_PIXEL));
gfx::ConvertSkiaToRGBA(bitmap, pixel_count,
reinterpret_cast<unsigned char*>(
vector_as_array(rgba_bitmap_data.get())));
sk_bitmap.unlockPixels();
notification_bitmap->data = rgba_bitmap_data.Pass();
return;
}
bool NotificationConversionHelper::NotificationBitmapToGfxImage(
float max_scale,
const gfx::Size& target_size_dips,
extensions::api::notifications::NotificationBitmap* notification_bitmap,
gfx::Image* return_image) {
if (!notification_bitmap)
return false;
const int max_device_pixel_width = target_size_dips.width() * max_scale;
const int max_device_pixel_height = target_size_dips.height() * max_scale;
const int BYTES_PER_PIXEL = 4;
const int width = notification_bitmap->width;
const int height = notification_bitmap->height;
if (width < 0 || height < 0 || width > max_device_pixel_width ||
height > max_device_pixel_height)
return false;
// Ensure we have rgba data.
std::vector<char>* rgba_data = notification_bitmap->data.get();
if (!rgba_data)
return false;
const size_t rgba_data_length = rgba_data->size();
const size_t rgba_area = width * height;
if (rgba_data_length != rgba_area * BYTES_PER_PIXEL)
return false;
SkBitmap bitmap;
// Allocate the actual backing store with the sanitized dimensions.
if (!bitmap.tryAllocN32Pixels(width, height))
return false;
// Ensure that our bitmap and our data now refer to the same number of pixels.
if (rgba_data_length != bitmap.getSafeSize())
return false;
uint32_t* pixels = bitmap.getAddr32(0, 0);
const char* c_rgba_data = rgba_data->data();
for (size_t t = 0; t < rgba_area; ++t) {
// |c_rgba_data| is RGBA, pixels is ARGB.
size_t rgba_index = t * BYTES_PER_PIXEL;
pixels[t] =
SkPreMultiplyColor(((c_rgba_data[rgba_index + 3] & 0xFF) << 24) |
((c_rgba_data[rgba_index + 0] & 0xFF) << 16) |
((c_rgba_data[rgba_index + 1] & 0xFF) << 8) |
((c_rgba_data[rgba_index + 2] & 0xFF) << 0));
}
// TODO(dewittj): Handle HiDPI images with more than one scale factor
// representation.
gfx::ImageSkia skia(gfx::ImageSkiaRep(bitmap, 1.0f));
*return_image = gfx::Image(skia);
return true;
}
std::string NotificationConversionHelper::MapTypeToString(
message_center::NotificationType type) {
switch (type) {
case message_center::NOTIFICATION_TYPE_BASE_FORMAT:
return "basic";
case message_center::NOTIFICATION_TYPE_IMAGE:
return "image";
case message_center::NOTIFICATION_TYPE_MULTIPLE:
return "list";
case message_center::NOTIFICATION_TYPE_PROGRESS:
return "progress";
default:
NOTREACHED();
return "";
}
}
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