mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2025-06-05 21:39:12 +02:00
9cff99dc4e
- Add CefRequestContext::LoadExtension, CefExtension, CefExtensionHandler and related methods/interfaces. - Add chrome://extensions-support that lists supported Chrome APIs. - Add CefBrowserHost::SetAutoResizeEnabled and CefDisplayHandler::OnAutoResize to support browser resize based on preferred web contents size. - views: Add support for custom CefMenuButton popups. - cefclient: Run with `--load-extension=set_page_color` command-line flag for an extension loading example. Add `--use-views` on Windows and Linux for an even better example.
128 lines
4.1 KiB
C++
128 lines
4.1 KiB
C++
// Copyright (c) 2017 The Chromium Embedded Framework Authors. All rights
|
|
// reserved. Use of this source code is governed by a BSD-style license that
|
|
// can be found in the LICENSE file.
|
|
|
|
#ifndef CEF_TESTS_CEFCLIENT_BROWSER_IMAGE_CACHE_H_
|
|
#define CEF_TESTS_CEFCLIENT_BROWSER_IMAGE_CACHE_H_
|
|
#pragma once
|
|
|
|
#include <map>
|
|
#include <vector>
|
|
|
|
#include "include/base/cef_bind.h"
|
|
#include "include/base/cef_ref_counted.h"
|
|
#include "include/cef_image.h"
|
|
#include "include/wrapper/cef_closure_task.h"
|
|
#include "include/wrapper/cef_helpers.h"
|
|
|
|
namespace client {
|
|
|
|
// Simple image caching implementation.
|
|
class ImageCache
|
|
: public base::RefCountedThreadSafe<ImageCache, CefDeleteOnUIThread> {
|
|
public:
|
|
ImageCache();
|
|
|
|
// Image representation at a specific scale factor.
|
|
struct ImageRep {
|
|
ImageRep(const std::string& path, float scale_factor);
|
|
|
|
// Full file system path.
|
|
std::string path_;
|
|
|
|
// Image scale factor (usually 1.0f or 2.0f).
|
|
float scale_factor_;
|
|
};
|
|
typedef std::vector<ImageRep> ImageRepSet;
|
|
|
|
// Unique image that may have multiple representations.
|
|
struct ImageInfo {
|
|
ImageInfo(const std::string& id,
|
|
const ImageRepSet& reps,
|
|
bool internal,
|
|
bool force_reload);
|
|
|
|
// Helper for returning an empty image.
|
|
static ImageInfo Empty();
|
|
|
|
// Helpers for creating common representations.
|
|
static ImageInfo Create1x(const std::string& id,
|
|
const std::string& path_1x,
|
|
bool internal);
|
|
static ImageInfo Create2x(const std::string& id,
|
|
const std::string& path_1x,
|
|
const std::string& path_2x,
|
|
bool internal);
|
|
static ImageInfo Create2x(const std::string& id);
|
|
|
|
// Image unique ID.
|
|
std::string id_;
|
|
|
|
// Image representations to load.
|
|
ImageRepSet reps_;
|
|
|
|
// True if the image is internal (loaded via LoadBinaryResource).
|
|
bool internal_;
|
|
|
|
// True to force reload.
|
|
bool force_reload_;
|
|
};
|
|
typedef std::vector<ImageInfo> ImageInfoSet;
|
|
|
|
typedef std::vector<CefRefPtr<CefImage>> ImageSet;
|
|
|
|
typedef base::Callback<void(const ImageSet& /*images*/)> LoadImagesCallback;
|
|
|
|
// Loads the images represented by |image_info|. Executes |callback|
|
|
// either synchronously or asychronously on the UI thread after completion.
|
|
void LoadImages(const ImageInfoSet& image_info,
|
|
const LoadImagesCallback& callback);
|
|
|
|
// Returns an image that has already been cached. Must be called on the
|
|
// UI thread.
|
|
CefRefPtr<CefImage> GetCachedImage(const std::string& image_id);
|
|
|
|
private:
|
|
// Only allow deletion via scoped_refptr.
|
|
friend struct CefDeleteOnThread<TID_UI>;
|
|
friend class base::RefCountedThreadSafe<ImageCache, CefDeleteOnUIThread>;
|
|
|
|
~ImageCache();
|
|
|
|
enum ImageType {
|
|
TYPE_NONE,
|
|
TYPE_PNG,
|
|
TYPE_JPEG,
|
|
};
|
|
|
|
static ImageType GetImageType(const std::string& path);
|
|
|
|
struct ImageContent;
|
|
typedef std::vector<ImageContent> ImageContentSet;
|
|
|
|
// Load missing image contents on the FILE thread.
|
|
void LoadMissing(const ImageInfoSet& image_info,
|
|
const ImageSet& images,
|
|
const LoadImagesCallback& callback);
|
|
static bool LoadImageContents(const ImageInfo& info, ImageContent* content);
|
|
static bool LoadImageContents(const std::string& path,
|
|
bool internal,
|
|
ImageType* type,
|
|
std::string* contents);
|
|
|
|
// Create missing CefImage representations on the UI thread.
|
|
void UpdateCache(const ImageInfoSet& image_info,
|
|
const ImageContentSet& contents,
|
|
const LoadImagesCallback& callback);
|
|
static CefRefPtr<CefImage> CreateImage(const std::string& image_id,
|
|
const ImageContent& content);
|
|
|
|
// Map image ID to image representation. Only accessed on the UI thread.
|
|
typedef std::map<std::string, CefRefPtr<CefImage>> ImageMap;
|
|
ImageMap image_map_;
|
|
};
|
|
|
|
} // namespace client
|
|
|
|
#endif // CEF_TESTS_CEFCLIENT_BROWSER_IMAGE_CACHE_H_
|