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| 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/browser/command_updater.h" | 5 #include "chrome/browser/command_updater.h" |
| 6 | 6 |
| 7 #include <algorithm> | 7 #include <algorithm> |
| 8 | 8 |
| 9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "base/observer_list.h" | 10 #include "base/observer_list.h" |
| 11 #include "base/stl_util-inl.h" | 11 #include "base/stl_util-inl.h" |
| 12 | 12 |
| 13 CommandUpdater::CommandUpdaterDelegate::~CommandUpdaterDelegate() { |
| 14 } |
| 15 |
| 13 class CommandUpdater::Command { | 16 class CommandUpdater::Command { |
| 14 public: | 17 public: |
| 15 bool enabled; | 18 bool enabled; |
| 16 ObserverList<CommandObserver> observers; | 19 ObserverList<CommandObserver> observers; |
| 17 | 20 |
| 18 Command() : enabled(true) {} | 21 Command() : enabled(true) {} |
| 19 }; | 22 }; |
| 20 | 23 |
| 21 CommandUpdater::CommandUpdater(CommandUpdaterDelegate* handler) | 24 CommandUpdater::CommandUpdater(CommandUpdaterDelegate* handler) |
| 22 : delegate_(handler) { | 25 : delegate_(handler) { |
| (...skipping 12 matching lines...) Expand all Loading... |
| 35 | 38 |
| 36 bool CommandUpdater::SupportsCommand(int id) const { | 39 bool CommandUpdater::SupportsCommand(int id) const { |
| 37 return commands_.find(id) != commands_.end(); | 40 return commands_.find(id) != commands_.end(); |
| 38 } | 41 } |
| 39 | 42 |
| 40 void CommandUpdater::ExecuteCommand(int id) { | 43 void CommandUpdater::ExecuteCommand(int id) { |
| 41 if (IsCommandEnabled(id)) | 44 if (IsCommandEnabled(id)) |
| 42 delegate_->ExecuteCommand(id); | 45 delegate_->ExecuteCommand(id); |
| 43 } | 46 } |
| 44 | 47 |
| 48 CommandUpdater::CommandObserver::~CommandObserver() { |
| 49 } |
| 50 |
| 45 void CommandUpdater::UpdateCommandEnabled(int id, bool enabled) { | 51 void CommandUpdater::UpdateCommandEnabled(int id, bool enabled) { |
| 46 Command* command = GetCommand(id, true); | 52 Command* command = GetCommand(id, true); |
| 47 if (command->enabled == enabled) | 53 if (command->enabled == enabled) |
| 48 return; // Nothing to do. | 54 return; // Nothing to do. |
| 49 command->enabled = enabled; | 55 command->enabled = enabled; |
| 50 FOR_EACH_OBSERVER(CommandObserver, command->observers, | 56 FOR_EACH_OBSERVER(CommandObserver, command->observers, |
| 51 EnabledStateChangedForCommand(id, enabled)); | 57 EnabledStateChangedForCommand(id, enabled)); |
| 52 } | 58 } |
| 53 | 59 |
| 54 CommandUpdater::Command* CommandUpdater::GetCommand(int id, bool create) { | 60 CommandUpdater::Command* CommandUpdater::GetCommand(int id, bool create) { |
| (...skipping 16 matching lines...) Expand all Loading... |
| 71 | 77 |
| 72 void CommandUpdater::RemoveCommandObserver(CommandObserver* observer) { | 78 void CommandUpdater::RemoveCommandObserver(CommandObserver* observer) { |
| 73 for (CommandMap::const_iterator it = commands_.begin(); | 79 for (CommandMap::const_iterator it = commands_.begin(); |
| 74 it != commands_.end(); | 80 it != commands_.end(); |
| 75 ++it) { | 81 ++it) { |
| 76 Command* command = it->second; | 82 Command* command = it->second; |
| 77 if (command) | 83 if (command) |
| 78 command->observers.RemoveObserver(observer); | 84 command->observers.RemoveObserver(observer); |
| 79 } | 85 } |
| 80 } | 86 } |
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