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Diffstat (limited to 'chrome/browser/download/download_util.h')
| -rw-r--r-- | chrome/browser/download/download_util.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/chrome/browser/download/download_util.h b/chrome/browser/download/download_util.h new file mode 100644 index 0000000..0ad10ab --- /dev/null +++ b/chrome/browser/download/download_util.h @@ -0,0 +1,192 @@ +// Copyright (c) 2006-2008 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. +// +// Download utilities. + +#ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H__ +#define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H__ + +#include <objidl.h> + +#include "base/basictypes.h" +#include "base/task.h" +#include "chrome/browser/views/download_item_view.h" +#include "chrome/views/event.h" +#include "chrome/views/menu.h" +#include "chrome/views/view.h" + +class DownloadItem; +class SkBitmap; + +namespace download_util { + +// DownloadContextMenu --------------------------------------------------------- + +// The base class of context menus that provides the various commands. +// Subclasses are responsible for creating and running the menu. +class BaseContextMenu : public Menu::Delegate { + public: + explicit BaseContextMenu(DownloadItem* download); + virtual ~BaseContextMenu(); + + enum ContextMenuCommands { + SHOW_IN_FOLDER = 1, // Open an Explorer window with the item highlighted + COPY_LINK, // Copy the download's URL to the clipboard + COPY_PATH, // Copy the download's full path to the clipboard + COPY_FILE, // Copy the downloaded file to the clipboard + OPEN_WHEN_COMPLETE, // Open the download when it's finished + ALWAYS_OPEN_TYPE, // Default this file extension to always open + REMOVE_ITEM, // Remove the download + CANCEL, // Cancel the download + MENU_LAST + }; + + // Menu::Delegate interface + virtual bool IsItemChecked(int id) const; + virtual bool IsItemDefault(int id) const; + virtual std::wstring GetLabel(int id) const; + virtual bool SupportsCommand(int id) const; + virtual bool IsCommandEnabled(int id) const; + virtual void ExecuteCommand(int id); + + protected: + // Information source. + DownloadItem* download_; + + private: + DISALLOW_EVIL_CONSTRUCTORS(BaseContextMenu); +}; + +// Menu for the download shelf. +class DownloadShelfContextMenu : public BaseContextMenu { + public: + DownloadShelfContextMenu(DownloadItem* download, + HWND window, + DownloadItemView::BaseDownloadItemModel* model, + const CPoint& point); + virtual ~DownloadShelfContextMenu(); + + virtual bool IsItemDefault(int id) const; + virtual void ExecuteCommand(int id); + + private: + // A model to control the cancel behavior. + DownloadItemView::BaseDownloadItemModel* model_; + + DISALLOW_EVIL_CONSTRUCTORS(DownloadShelfContextMenu); +}; + +// Menu for the download destination view. +class DownloadDestinationContextMenu : public BaseContextMenu { + public: + DownloadDestinationContextMenu(DownloadItem* download, + HWND window, + const CPoint& point); + virtual ~DownloadDestinationContextMenu(); + + private: + DISALLOW_EVIL_CONSTRUCTORS(DownloadDestinationContextMenu); +}; + +// DownloadProgressTask -------------------------------------------------------- + +// A class for managing the timed progress animations for a download view. The +// view must implement an UpdateDownloadProgress() method. +template<class DownloadView> +class DownloadProgressTask : public Task { + public: + DownloadProgressTask(DownloadView* view) : view_(view) {} + virtual ~DownloadProgressTask() {} + virtual void Run() { + view_->UpdateDownloadProgress(); + } + private: + DownloadView* view_; + DISALLOW_EVIL_CONSTRUCTORS(DownloadProgressTask); +}; + +// Download opening ------------------------------------------------------------ + +// Whether it is OK to open this download. +bool CanOpenDownload(DownloadItem* download); + +// Open the file associated with this download (wait for the download to +// complete if it is in progress). +void OpenDownload(DownloadItem* download); + +// Download progress animations ------------------------------------------------ + +// Arc sweep angle for use with downloads of unknown size +const int kUnknownAngleDegrees = 50; + +// Rate of progress for use with downloads of unknown size +const int kUnknownIncrementDegrees = 12; + +// Start angle for downloads with known size (midnight position) +const int kStartAngleDegrees = -90; + +// A circle +const int kMaxDegrees = 360; + +// Progress animation timer period, in milliseconds. +const int kProgressRateMs = 150; + +// XP and Vista must support icons of this size. +const int kSmallIconSize = 16; +const int kBigIconSize = 32; + +// Our progress halo around the icon +const int kSmallProgressIconSize = 39; +const int kBigProgressIconSize = 52; + +// The offset required to center the icon in the progress bitmaps. +const int kSmallProgressIconOffset = + (kSmallProgressIconSize - kSmallIconSize) / 2; +const int kBigProgressIconOffset = (kBigProgressIconSize - kBigIconSize) / 2; + +enum PaintDownloadProgressSize { + SMALL = 0, + BIG +}; + +// Paint the common download animation progress foreground and background, +// clipping the foreground to 'percent' full. If percent is -1, then we don't +// know the total size, so we just draw a rotating segment until we're done. +// +// |containing_view| is the View subclass within which the progress animation +// is drawn (generally either DownloadItemTabView or DownloadItemView). We +// require the containing View in addition to the canvas because if we are +// drawing in a right-to-left locale, we need to mirror the position of the +// progress animation within the containing View. +void PaintDownloadProgress(ChromeCanvas* canvas, + ChromeViews::View* containing_view, + int origin_x, + int origin_y, + int start_angle, + int percent, + PaintDownloadProgressSize size); + +void PaintDownloadComplete(ChromeCanvas* canvas, + ChromeViews::View* containing_view, + int origin_x, + int origin_y, + double animation_progress, + PaintDownloadProgressSize size); + +// Drag support ---------------------------------------------------------------- + +// Helper function for download views to use when acting as a drag source for a +// DownloadItem. If 'icon' is NULL, no image will be accompany the drag. +void DragDownload(const DownloadItem* download, SkBitmap* icon); + +// Executable file support ----------------------------------------------------- + +// Copy all executable file extensions. +void InitializeExeTypes(std::set<std::wstring>* exe_extensions); + +} // namespace download_util + + +#endif // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H__ + |