Rip Out the Sidebar API

chrome/browser/ui/cocoa/sidebar_controller.mm

-// Copyright (c) 2010 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.
-
-#import "chrome/browser/ui/cocoa/sidebar_controller.h"
-
-#include <algorithm>
-
-#include <Cocoa/Cocoa.h>
-
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/browser/sidebar/sidebar_manager.h"
-#import "chrome/browser/ui/cocoa/view_id_util.h"
-#include "chrome/common/pref_names.h"
-#include "content/browser/tab_contents/tab_contents.h"
-
-namespace {
-
-// By default sidebar width is 1/7th of the current page content width.
-const CGFloat kDefaultSidebarWidthRatio = 1.0 / 7;
-
-// Never make the web part of the tab contents smaller than this (needed if the
-// window is only a few pixels wide).
-const int kMinWebWidth = 50;
-
-}  // end namespace
-
-
-@interface SidebarController (Private)
-- (void)showSidebarContents:(TabContents*)sidebarContents;
-- (void)resizeSidebarToNewWidth:(CGFloat)width;
-@end
-
-
-@implementation SidebarController
-
-- (id)initWithDelegate:(id<TabContentsControllerDelegate>)delegate {
-  if ((self = [super init])) {
-    splitView_.reset([[NSSplitView alloc] initWithFrame:NSZeroRect]);
-    [splitView_ setDividerStyle:NSSplitViewDividerStyleThin];
-    [splitView_ setVertical:YES];
-    [splitView_ setAutoresizingMask:NSViewWidthSizable|NSViewHeightSizable];
-    [splitView_ setDelegate:self];
-
-    contentsController_.reset(
-        [[TabContentsController alloc] initWithContents:NULL
-                                               delegate:delegate]);
-  }
-  return self;
-}
-
-- (void)dealloc {
-  [splitView_ setDelegate:nil];
-  [super dealloc];
-}
-
-- (NSSplitView*)view {
-  return splitView_.get();
-}
-
-- (NSSplitView*)splitView {
-  return splitView_.get();
-}
-
-- (void)updateSidebarForTabContents:(TabContents*)contents {
-  // Get the active sidebar content.
-  if (SidebarManager::GetInstance() == NULL)  // Happens in tests.
-    return;
-
-  TabContents* sidebarContents = NULL;
-  if (contents && SidebarManager::IsSidebarAllowed()) {
-    SidebarContainer* activeSidebar =
-        SidebarManager::GetInstance()->GetActiveSidebarContainerFor(contents);
-    if (activeSidebar)
-      sidebarContents = activeSidebar->sidebar_contents();
-  }
-
-  TabContents* oldSidebarContents = [contentsController_ tabContents];
-  if (oldSidebarContents == sidebarContents)
-    return;
-
-  // Adjust sidebar view.
-  [self showSidebarContents:sidebarContents];
-
-  // Notify extensions.
-  SidebarManager::GetInstance()->NotifyStateChanges(
-      oldSidebarContents, sidebarContents);
-}
-
-- (void)ensureContentsVisible {
-  [contentsController_ ensureContentsVisible];
-}
-
-- (void)showSidebarContents:(TabContents*)sidebarContents {
-  [contentsController_ ensureContentsSizeDoesNotChange];
-
-  NSArray* subviews = [splitView_ subviews];
-  if (sidebarContents) {
-    DCHECK_GE([subviews count], 1u);
-
-    // Native view is a TabContentsViewCocoa object, whose ViewID was
-    // set to VIEW_ID_TAB_CONTAINER initially, so change it to
-    // VIEW_ID_SIDE_BAR_CONTAINER here.
-    view_id_util::SetID(
-        sidebarContents->GetNativeView(), VIEW_ID_SIDE_BAR_CONTAINER);
-
-    CGFloat sidebarWidth = 0;
-    if ([subviews count] == 1) {
-      // Load the default split offset.
-      sidebarWidth = g_browser_process->local_state()->GetInteger(
-          prefs::kExtensionSidebarWidth);
-      if (sidebarWidth < 0) {
-        // Initial load, set to default value.
-        sidebarWidth =
-            NSWidth([splitView_ frame]) * kDefaultSidebarWidthRatio;
-      }
-      [splitView_ addSubview:[contentsController_ view]];
-    } else {
-      DCHECK_EQ([subviews count], 2u);
-      sidebarWidth = NSWidth([[subviews objectAtIndex:1] frame]);
-    }
-
-    // Make sure |sidebarWidth| isn't too large or too small.
-    sidebarWidth = std::min(sidebarWidth,
-                            NSWidth([splitView_ frame]) - kMinWebWidth);
-    DCHECK_GE(sidebarWidth, 0) << "kMinWebWidth needs to be smaller than "
-                               << "smallest available tab contents space.";
-    sidebarWidth = std::max(static_cast<CGFloat>(0), sidebarWidth);
-
-    [self resizeSidebarToNewWidth:sidebarWidth];
-  } else {
-    if ([subviews count] > 1) {
-      NSView* oldSidebarContentsView = [subviews objectAtIndex:1];
-      // Store split offset when hiding sidebar window only.
-      int sidebarWidth = NSWidth([oldSidebarContentsView frame]);
-      g_browser_process->local_state()->SetInteger(
-          prefs::kExtensionSidebarWidth, sidebarWidth);
-      [oldSidebarContentsView removeFromSuperview];
-      [splitView_ adjustSubviews];
-    }
-  }
-
-  [contentsController_ changeTabContents:sidebarContents];
-}
-
-- (void)resizeSidebarToNewWidth:(CGFloat)width {
-  NSArray* subviews = [splitView_ subviews];
-
-  // It seems as if |-setPosition:ofDividerAtIndex:| should do what's needed,
-  // but I can't figure out how to use it. Manually resize web and sidebar.
-  // TODO(alekseys): either make setPosition:ofDividerAtIndex: work or to add a
-  // category on NSSplitView to handle manual resizing.
-  NSView* sidebarView = [subviews objectAtIndex:1];
-  NSRect sidebarFrame = [sidebarView frame];
-  sidebarFrame.size.width = width;
-  [sidebarView setFrame:sidebarFrame];
-
-  NSView* webView = [subviews objectAtIndex:0];
-  NSRect webFrame = [webView frame];
-  webFrame.size.width =
-      NSWidth([splitView_ frame]) - ([splitView_ dividerThickness] + width);
-  [webView setFrame:webFrame];
-
-  [splitView_ adjustSubviews];
-}
-
-// NSSplitViewDelegate protocol.
-- (BOOL)splitView:(NSSplitView *)splitView
-    shouldAdjustSizeOfSubview:(NSView *)subview {
-  // Return NO for the sidebar view to indicate that it should not be resized
-  // automatically.  The sidebar keeps the width set by the user.
-  if ([[splitView_ subviews] indexOfObject:subview] == 1)
-    return NO;
-  return YES;
-}
-
-@end