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// Copyright 2013 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 "ui/app_list/cocoa/apps_search_results_model_bridge.h"
#import <Cocoa/Cocoa.h>
#include "base/strings/sys_string_conversions.h"
#include "ui/app_list/app_list_model.h"
#import "ui/app_list/cocoa/apps_search_results_controller.h"
#include "ui/app_list/search_result.h"
#include "ui/app_list/search_result_observer.h"
#import "ui/base/cocoa/menu_controller.h"
namespace app_list {
class AppsSearchResultsModelBridge::ItemObserver : public SearchResultObserver {
public:
ItemObserver(AppsSearchResultsModelBridge* bridge, size_t index)
: bridge_(bridge), row_in_view_(index) {
// Cache the result, because the results array is updated before notifying
// observers (which happens before deleting the SearchResult).
result_ = [bridge_->parent_ results]->GetItemAt(index);
result_->AddObserver(this);
}
~ItemObserver() override { result_->RemoveObserver(this); }
NSMenu* GetContextMenu() {
if (!context_menu_controller_) {
ui::MenuModel* menu_model = result_->GetContextMenuModel();
if (!menu_model)
return nil;
context_menu_controller_.reset(
[[MenuController alloc] initWithModel:menu_model
useWithPopUpButtonCell:NO]);
}
return [context_menu_controller_ menu];
}
// SearchResultObserver overrides:
void OnIconChanged() override {
bridge_->ReloadDataForItems(row_in_view_, 1);
}
void OnActionsChanged() override {}
void OnIsInstallingChanged() override {}
void OnPercentDownloadedChanged() override {}
void OnItemInstalled() override {}
private:
AppsSearchResultsModelBridge* bridge_; // Weak. Owns us.
SearchResult* result_; // Weak. Owned by AppListModel::SearchResults.
size_t row_in_view_;
base::scoped_nsobject<MenuController> context_menu_controller_;
DISALLOW_COPY_AND_ASSIGN(ItemObserver);
};
AppsSearchResultsModelBridge::AppsSearchResultsModelBridge(
AppsSearchResultsController* results_controller)
: parent_(results_controller) {
UpdateItemObservers();
[parent_ results]->AddObserver(this);
}
AppsSearchResultsModelBridge::~AppsSearchResultsModelBridge() {
[parent_ results]->RemoveObserver(this);
}
NSMenu* AppsSearchResultsModelBridge::MenuForItem(size_t index) {
DCHECK_LT(index, item_observers_.size());
return item_observers_[index]->GetContextMenu();
}
void AppsSearchResultsModelBridge::UpdateItemObservers() {
DCHECK(item_observers_.empty());
const size_t itemCount = [parent_ results]->item_count();
for (size_t i = 0 ; i < itemCount; ++i)
item_observers_.push_back(new ItemObserver(this, i));
}
void AppsSearchResultsModelBridge::ReloadDataForItems(
size_t start, size_t count) const {
NSIndexSet* column = [NSIndexSet indexSetWithIndex:0];
NSIndexSet* rows =
[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(start, count)];
[[parent_ tableView] reloadDataForRowIndexes:rows
columnIndexes:column];
}
void AppsSearchResultsModelBridge::ListItemsAdded(
size_t start, size_t count) {
item_observers_.clear();
if (start == static_cast<size_t>([[parent_ tableView] numberOfRows]))
[[parent_ tableView] noteNumberOfRowsChanged];
else
[[parent_ tableView] reloadData];
UpdateItemObservers();
}
void AppsSearchResultsModelBridge::ListItemsRemoved(
size_t start, size_t count) {
item_observers_.clear();
if (start == [parent_ results]->item_count())
[[parent_ tableView] noteNumberOfRowsChanged];
else
[[parent_ tableView] reloadData];
UpdateItemObservers();
}
void AppsSearchResultsModelBridge::ListItemMoved(
size_t index, size_t target_index) {
NOTREACHED();
}
void AppsSearchResultsModelBridge::ListItemsChanged(
size_t start, size_t count) {
item_observers_.clear();
ReloadDataForItems(start, count);
UpdateItemObservers();
}
} // namespace app_list
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