Initial download shelf on OS X....

chrome/browser/cocoa/download_item_mac.mm

 // Copyright (c) 2009 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/gtk/download_item_gtk.h"
+#include "chrome/browser/cocoa/download_item_mac.h"
 
 #include "base/basictypes.h"
 #include "base/string_util.h"
+#include "base/sys_string_conversions.h"
+#import "chrome/browser/cocoa/download_shelf_controller.h"
+#import "chrome/browser/cocoa/download_shelf_mac.h"
+#import "chrome/browser/cocoa/download_shelf_view.h"
 #include "chrome/browser/download/download_item_model.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/download/download_shelf.h"
-#include "chrome/browser/gtk/menu_gtk.h"
-#include "chrome/browser/gtk/nine_box.h"
-#include "chrome/common/gfx/chrome_font.h"
-#include "chrome/common/gfx/text_elider.h"
-#include "chrome/common/resource_bundle.h"
-#include "grit/generated_resources.h"
-#include "grit/theme_resources.h"
 
-namespace {
+// A class for the chromium-side part of the download shelf context menu.
 
-// The width of the |menu_button_| widget. It has to be at least as wide as the
-// bitmap that we use to draw it, i.e. 16, but can be more.
-const int kMenuButtonWidth = 16;
-
-// Amount of space we allot to showing the filename. If the filename is too wide
-// it will be elided.
-const int kTextWidth = 140;
-
-const char* kLabelColorMarkup = "<span color='#%s'>%s</span>";
-const char* kFilenameColor = "576C95";  // 87, 108, 149
-const char* kStatusColor = "7B8DAE";  // 123, 141, 174
-
-}  // namespace
-
-// DownloadShelfContextMenuGtk -------------------------------------------------
-
-class DownloadShelfContextMenuGtk : public DownloadShelfContextMenu,
-                                    public MenuGtk::Delegate {
+class DownloadShelfContextMenuMac : public DownloadShelfContextMenu {
  public:
-  // The constructor creates the menu and immediately pops it up.
-  // |model| is the download item model associated with this context menu,
-  // |widget| is the button that popped up this context menu, and |e| is
-  // the button press event that caused this menu to be created.
-  DownloadShelfContextMenuGtk(BaseDownloadItemModel* model)
-      : DownloadShelfContextMenu(model),
-        menu_is_for_complete_download_(false) {
+  DownloadShelfContextMenuMac(BaseDownloadItemModel* model,
+      DownloadShelfContextMenuBridge* bridge)
+      : DownloadShelfContextMenu(model), bridge_(bridge) {
   }
 
-  ~DownloadShelfContextMenuGtk() {
-  }
+  NSMenu* GetCocoaMenu();
 
-  void Popup(GtkWidget* widget, GdkEvent* event) {
-    // Create the menu if we have not created it yet or we created it for
-    // an in-progress download that has since completed.
-    bool download_is_complete = download_->state() == DownloadItem::COMPLETE;
-    if (menu_.get() == NULL ||
-        (download_is_complete && !menu_is_for_complete_download_)) {
-      menu_.reset(new MenuGtk(this, download_is_complete ?
-          finished_download_menu : in_progress_download_menu, NULL));
-      menu_is_for_complete_download_ = download_is_complete;
-    }
-    menu_->Popup(widget, event);
-  }
-
-  // MenuGtk::Delegate implementation ------------------------------------------
-  virtual bool IsCommandEnabled(int id) const {
-    return IsItemCommandEnabled(id);
-  }
-
-  virtual bool IsItemChecked(int id) const {
-    return ItemIsChecked(id);
-  }
-
-  virtual void ExecuteCommand(int id) {
-    return ExecuteItemCommand(id);
-  }
+  using DownloadShelfContextMenu::ExecuteItemCommand;
 
  private:
-  // The menu we show on Popup(). We keep a pointer to it for a couple reasons:
-  //  * we don't want to have to recreate the menu every time it's popped up.
-  //  * we have to keep it in scope for longer than the duration of Popup(), or
-  //    completing the user-selected action races against the menu's
-  //    destruction.
-  scoped_ptr<MenuGtk> menu_;
-
-  // If true, the MenuGtk in |menu_| refers to a finished download menu.
-  bool menu_is_for_complete_download_;
-
-  // We show slightly different menus if the download is in progress vs. if the
-  // download has finished.
-  static MenuCreateMaterial in_progress_download_menu[];
-
-  static MenuCreateMaterial finished_download_menu[];
+  DownloadShelfContextMenuBridge* bridge_;  // weak, owns us
 };
 
-MenuCreateMaterial DownloadShelfContextMenuGtk::finished_download_menu[] = {
-  { MENU_NORMAL, OPEN_WHEN_COMPLETE, IDS_DOWNLOAD_MENU_OPEN, 0, NULL },
-  { MENU_CHECKBOX, ALWAYS_OPEN_TYPE, IDS_DOWNLOAD_MENU_ALWAYS_OPEN_TYPE,
-    0, NULL},
-  { MENU_SEPARATOR, 0, 0, 0, NULL },
-  { MENU_NORMAL, SHOW_IN_FOLDER, IDS_DOWNLOAD_LINK_SHOW, 0, NULL},
-  { MENU_SEPARATOR, 0, 0, 0, NULL },
-  { MENU_NORMAL, CANCEL, IDS_DOWNLOAD_MENU_CANCEL, 0, NULL},
-  { MENU_END, 0, 0, 0, NULL },
-};
+NSMenu* DownloadShelfContextMenuMac::GetCocoaMenu() {
+  // TODO(thakis): win/gtk show slightly different menus when the download is
+  // in progress/done (mainly the first item)
+  // TODO(thakis): this probably wants to be in a xib file or at least use
+  // localized strings
 
-MenuCreateMaterial DownloadShelfContextMenuGtk::in_progress_download_menu[] = {
-  { MENU_CHECKBOX, OPEN_WHEN_COMPLETE, IDS_DOWNLOAD_MENU_OPEN_WHEN_COMPLETE,
-    0, NULL },
-  { MENU_CHECKBOX, ALWAYS_OPEN_TYPE, IDS_DOWNLOAD_MENU_ALWAYS_OPEN_TYPE,
-    0, NULL},
-  { MENU_SEPARATOR, 0, 0, 0, NULL },
-  { MENU_NORMAL, SHOW_IN_FOLDER, IDS_DOWNLOAD_LINK_SHOW, 0, NULL},
-  { MENU_SEPARATOR, 0, 0, 0, NULL },
-  { MENU_NORMAL, CANCEL, IDS_DOWNLOAD_MENU_CANCEL, 0, NULL},
-  { MENU_END, 0, 0, 0, NULL },
-};
+  NSMenuItem* item;
+  NSMenu* menu =
+      [[[NSMenu alloc] initWithTitle:@"DownloadItemPopup"] autorelease];
+  SEL action = @selector(performAction:);
 
-// DownloadItemGtk -------------------------------------------------------------
+  item = [menu addItemWithTitle:@"Open" action:action keyEquivalent:@""];
+  //  [item addItemWithTitle:@"Open when complete" ...];  // In-progress text.
+  [item setTag:OPEN_WHEN_COMPLETE];
+  [item setTarget:bridge_];
 
-NineBox* DownloadItemGtk::body_nine_box_normal_ = NULL;
-NineBox* DownloadItemGtk::body_nine_box_prelight_ = NULL;
-NineBox* DownloadItemGtk::body_nine_box_active_ = NULL;
+  // TODO(thakis): Set correct checkbox state, make this a checkbox item
+  item = [menu addItemWithTitle:@"Always open type"
+                         action:action
+                  keyEquivalent:@""];
+  [item setTag:ALWAYS_OPEN_TYPE];
+  [item setTarget:bridge_];
 
-NineBox* DownloadItemGtk::menu_nine_box_normal_ = NULL;
-NineBox* DownloadItemGtk::menu_nine_box_prelight_ = NULL;
-NineBox* DownloadItemGtk::menu_nine_box_active_ = NULL;
+  [menu addItem:[NSMenuItem separatorItem]];
 
-DownloadItemGtk::DownloadItemGtk(BaseDownloadItemModel* download_model,
-                                 GtkWidget* parent_shelf,
-                                 GtkWidget* bounding_widget)
-    : download_model_(download_model),
-      parent_shelf_(parent_shelf),
-      bounding_widget_(bounding_widget) {
-  InitNineBoxes();
+  item = [menu addItemWithTitle:@"Reveal in Finder"
+                         action:action
+                  keyEquivalent:@""];
+  [item setTag:SHOW_IN_FOLDER];
+  [item setTarget:bridge_];
 
-  body_ = gtk_button_new();
-  // Eventually we will show an icon and graphical download progress, but for
-  // now the only contents of body_ is text, so to make its size request the
-  // same as the width of the text (plus a little padding: see below).
-  gtk_widget_set_size_request(body_, kTextWidth + 50, -1);
-  gtk_widget_set_app_paintable(body_, TRUE);
-  g_signal_connect(G_OBJECT(body_), "expose-event",
-                   G_CALLBACK(OnExpose), this);
-  GTK_WIDGET_UNSET_FLAGS(body_, GTK_CAN_FOCUS);
-  GtkWidget* name_label = gtk_label_new(NULL);
-  // TODO(estade): This is at best an educated guess, since we don't actually
-  // use ChromeFont() to draw the text. This is why we need to add so
-  // much padding when we set the size request. We need to either use ChromeFont
-  // or somehow extend TextElider.
-  std::wstring elided_filename = gfx::ElideFilename(
-      download_model->download()->GetFileName().ToWStringHack(),
-      ChromeFont(), kTextWidth);
-  std::string label_markup =
-      StringPrintf(kLabelColorMarkup, kFilenameColor,
-                   WideToUTF8(elided_filename).c_str());
-  gtk_label_set_markup(GTK_LABEL(name_label), label_markup.c_str());
-  status_label_ = gtk_label_new(NULL);
-  // Left align and vertically center the labels.
-  gtk_misc_set_alignment(GTK_MISC(name_label), 0, 0.5);
-  gtk_misc_set_alignment(GTK_MISC(status_label_), 0, 0.5);
+  [menu addItem:[NSMenuItem separatorItem]];
 
-  // Stack the labels on top of one another.
-  GtkWidget* text_stack = gtk_vbox_new(FALSE, 0);
-  gtk_box_pack_start(GTK_BOX(text_stack), name_label, TRUE, TRUE, 0);
-  gtk_box_pack_start(GTK_BOX(text_stack), status_label_, FALSE, FALSE, 0);
-  gtk_container_add(GTK_CONTAINER(body_), text_stack);
+  item = [menu addItemWithTitle:@"Cancel" action:action keyEquivalent:@""];
+  [item setTag:CANCEL];
+  [item setTarget:bridge_];
 
-  menu_button_ = gtk_button_new();
-  gtk_widget_set_app_paintable(menu_button_, TRUE);
-  GTK_WIDGET_UNSET_FLAGS(menu_button_, GTK_CAN_FOCUS);
-  g_signal_connect(G_OBJECT(menu_button_), "expose-event",
-                   G_CALLBACK(OnExpose), this);
-  g_signal_connect(G_OBJECT(menu_button_), "button-press-event",
-                   G_CALLBACK(OnMenuButtonPressEvent), this);
-  g_object_set_data(G_OBJECT(menu_button_), "left-align-popup",
-                    reinterpret_cast<void*>(true));
-  gtk_widget_set_size_request(menu_button_, kMenuButtonWidth, 0);
-
-  hbox_ = gtk_hbox_new(FALSE, 0);
-  gtk_box_pack_start(GTK_BOX(hbox_), body_, FALSE, FALSE, 0);
-  gtk_box_pack_start(GTK_BOX(hbox_), menu_button_, FALSE, FALSE, 0);
-  gtk_box_pack_start(GTK_BOX(parent_shelf), hbox_, FALSE, FALSE, 0);
-  // Insert as the leftmost item.
-  gtk_box_reorder_child(GTK_BOX(parent_shelf), hbox_, 1);
-  gtk_widget_show_all(hbox_);
-
-  g_signal_connect(G_OBJECT(parent_shelf_), "size-allocate",
-                   G_CALLBACK(OnShelfResized), this);
-
-  download_model_->download()->AddObserver(this);
+  return menu;
 }
 
-DownloadItemGtk::~DownloadItemGtk() {
+
+// A class for the cocoa side of the download shelf context menu.
+
+@interface DownloadShelfContextMenuBridge : NSObject {
+ @private
+  scoped_ptr<DownloadShelfContextMenuMac> contextMenu_;
+}
+
+- (DownloadShelfContextMenuBridge*)initWithModel:(BaseDownloadItemModel*)model;
+@end
+
+@interface DownloadShelfContextMenuBridge(Private)
+- (void)performAction:(id)sender;
+- (NSMenu*)menu;
+@end
+
+@implementation DownloadShelfContextMenuBridge
+
+- (DownloadShelfContextMenuBridge*)initWithModel:(BaseDownloadItemModel*)model {
+  if ((self = [super init]) == nil) {
+    return nil;
+  }
+  contextMenu_.reset(new DownloadShelfContextMenuMac(model, self));
+  return self;
+}
+
+@end
+
+@implementation DownloadShelfContextMenuBridge(Private)
+
+- (void)performAction:(id)sender {
+  contextMenu_->ExecuteItemCommand([sender tag]);
+}
+
+- (NSMenu*)menu {
+  return contextMenu_->GetCocoaMenu();
+}
+
+@end
+
+
+// DownloadItemMac -------------------------------------------------------------
+
+DownloadItemMac::DownloadItemMac(BaseDownloadItemModel* download_model,
+                                 NSRect frame,
+                                 DownloadShelfController* parent)
+    : download_model_(download_model), parent_(parent) {
+  download_model_->download()->AddObserver(this);
+
+  // TODO(thakis): The windows version of this does all kinds of things
+  // (gratituous use of animation, special handling of dangerous downloads)
+  // that we don't currently do.
+
+  scoped_nsobject<NSPopUpButton> view(
+      [[NSPopUpButton alloc] initWithFrame:frame pullsDown:YES]);
+  [parent_ addDownloadItem:view.get()];
+
+  // TODO(thakis): use filename eliding like gtk/windows versions
+  std::wstring tmpname =
+      download_model->download()->GetFileName().ToWStringHack();
+
+  NSString* titleString = base::SysWideToNSString(tmpname);
+
+  menu_.reset([[DownloadShelfContextMenuBridge alloc]
+      initWithModel:download_model_.get()]);
+  [view.get() setMenu:[menu_.get() menu]];
+
+  [view.get() insertItemWithTitle:titleString atIndex:0];
+
+  // TODO(thakis): Use file extension and iconForFileType. Currently, this
+  // complains "<filename> is not a full path."
+  [[view.get() itemAtIndex:0] setImage:
+      [[NSWorkspace sharedWorkspace] iconForFile:titleString]];
+}
+
+DownloadItemMac::~DownloadItemMac() {
   download_model_->download()->RemoveObserver(this);
 }
 
-void DownloadItemGtk::OnDownloadUpdated(DownloadItem* download) {
+void DownloadItemMac::OnDownloadUpdated(DownloadItem* download) {
   DCHECK_EQ(download, download_model_->download());
-  if (!status_label_) {
-    return;
-  }
 
   std::wstring status_text = download_model_->GetStatusText();
   // Remove the status text label.
   if (status_text.empty()) {
-    gtk_widget_destroy(status_label_);
-    status_label_ = NULL;
+    // TODO(thakis): Once there is a status label, hide it here
     return;
   }
 
-  std::string label_markup =
-      StringPrintf(kLabelColorMarkup, kStatusColor,
-                   WideToUTF8(status_text).c_str());
-
-  gtk_label_set_markup(GTK_LABEL(status_label_), label_markup.c_str());
+  // TODO(thakis): Set status_text as status label
 }
-
-// static
-void DownloadItemGtk::InitNineBoxes() {
-  if (body_nine_box_normal_)
-    return;
-
-  GdkPixbuf* images[9];
-  ResourceBundle &rb = ResourceBundle::GetSharedInstance();
-
-  int i = 0;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_TOP);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_TOP);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_TOP);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_MIDDLE);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_MIDDLE);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_MIDDLE);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_BOTTOM);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_BOTTOM);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_BOTTOM);
-  body_nine_box_normal_ = new NineBox(images);
-
-  i = 0;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_TOP_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_TOP_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_TOP_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_MIDDLE_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_MIDDLE_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_MIDDLE_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_BOTTOM_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_BOTTOM_H);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_BOTTOM_H);
-  body_nine_box_prelight_ = new NineBox(images);
-
-  i = 0;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_TOP_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_TOP_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_TOP_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_MIDDLE_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_MIDDLE_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_MIDDLE_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_LEFT_BOTTOM_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_CENTER_BOTTOM_P);
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_RIGHT_BOTTOM_P);
-  body_nine_box_active_ = new NineBox(images);
-
-  i = 0;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_TOP);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_MIDDLE);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_BOTTOM);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  menu_nine_box_normal_ = new NineBox(images);
-
-  i = 0;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_TOP_H);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_MIDDLE_H);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_BOTTOM_H);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  menu_nine_box_prelight_ = new NineBox(images);
-
-  i = 0;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_TOP_P);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_MIDDLE_P);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  images[i++] = rb.LoadPixbuf(IDR_DOWNLOAD_BUTTON_MENU_BOTTOM_P);
-  images[i++] = NULL;
-  images[i++] = NULL;
-  menu_nine_box_active_ = new NineBox(images);
-}
-
-// static
-gboolean DownloadItemGtk::OnExpose(GtkWidget* widget, GdkEventExpose* e,
-                                   DownloadItemGtk* download_item) {
-  NineBox* nine_box = NULL;
-  // If true, this widget is |body_|, otherwise it is |menu_button_|.
-  bool is_body = widget == download_item->body_;
-  if (GTK_WIDGET_STATE(widget) == GTK_STATE_PRELIGHT)
-    nine_box = is_body ? body_nine_box_prelight_ : menu_nine_box_prelight_;
-  else if (GTK_WIDGET_STATE(widget) == GTK_STATE_ACTIVE)
-    nine_box = is_body ? body_nine_box_active_ : menu_nine_box_active_;
-  else
-    nine_box = is_body ? body_nine_box_normal_ : menu_nine_box_normal_;
-
-  nine_box->RenderToWidget(widget);
-
-  GtkWidget* child = gtk_bin_get_child(GTK_BIN(widget));
-  if (child)
-    gtk_container_propagate_expose(GTK_CONTAINER(widget), child, e);
-
-  return TRUE;
-}
-
-gboolean DownloadItemGtk::OnMenuButtonPressEvent(GtkWidget* button,
-                                                 GdkEvent* event,
-                                                 DownloadItemGtk* item) {
-  // TODO(port): this never puts the button into the "active" state,
-  // so this may need to be changed. See note in BrowserToolbarGtk.
-  if (event->type == GDK_BUTTON_PRESS) {
-    GdkEventButton* event_button = reinterpret_cast<GdkEventButton*>(event);
-    if (event_button->button == 1) {
-      if (item->menu_.get() == NULL) {
-        item->menu_.reset(new DownloadShelfContextMenuGtk(
-            item->download_model_.get()));
-      }
-      item->menu_->Popup(button, event);
-    }
-  }
-
-  return FALSE;
-}
-
-void DownloadItemGtk::OnShelfResized(GtkWidget *widget,
-                                     GtkAllocation *allocation,
-                                     DownloadItemGtk* item) {
-  if (item->hbox_->allocation.x + item->hbox_->allocation.width >
-      item->bounding_widget_->allocation.x)
-    gtk_widget_hide(item->hbox_);
-  else
-    gtk_widget_show(item->hbox_);
-}