| // Copyright 2010-2015, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "win32/base/indicator_visibility_tracker.h" |
| |
| #include "base/stopwatch.h" |
| |
| namespace mozc { |
| namespace win32 { |
| namespace { |
| |
| #ifdef MOZC_ENABLE_MODE_INDICATOR |
| const bool kIndicatorSupported = true; |
| #else |
| const bool kIndicatorSupported = false; |
| #endif // MOZC_ENABLE_MODE_INDICATOR |
| |
| const double kIgnoreMoveWindowDuration = 500.0; // msec |
| |
| IndicatorVisibilityTracker::Action GetDefaultAction( |
| bool previously_visible, bool now_visible) { |
| if (!kIndicatorSupported) { |
| return IndicatorVisibilityTracker::kNothing; |
| } |
| |
| if (previously_visible == now_visible) { |
| return IndicatorVisibilityTracker::kNothing; |
| } |
| return IndicatorVisibilityTracker::kUpdateUI; |
| } |
| |
| } // namespace |
| |
| struct IndicatorVisibilityTracker::InternalState { |
| public: |
| InternalState() |
| : visible(false) {} |
| |
| bool visible; |
| Stopwatch mode_changed_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(InternalState); |
| }; |
| |
| IndicatorVisibilityTracker::IndicatorVisibilityTracker() |
| : state_(new InternalState) {} |
| |
| IndicatorVisibilityTracker::~IndicatorVisibilityTracker() {} |
| |
| IndicatorVisibilityTracker::Action |
| IndicatorVisibilityTracker::OnDissociateContext() { |
| const bool original = state_->visible; |
| state_->visible = false; |
| state_->mode_changed_.Reset(); |
| return GetDefaultAction(original, state_->visible); |
| } |
| |
| IndicatorVisibilityTracker::Action IndicatorVisibilityTracker::OnTestKey( |
| const VirtualKey &key, bool is_down, bool eaten) { |
| if (!is_down) { |
| return kNothing; |
| } |
| const bool original = state_->visible; |
| state_->visible = false; |
| state_->mode_changed_.Reset(); |
| return GetDefaultAction(original, state_->visible); |
| } |
| |
| IndicatorVisibilityTracker::Action IndicatorVisibilityTracker::OnKey( |
| const VirtualKey &key, bool is_down, bool eaten) { |
| if (!is_down) { |
| return kNothing; |
| } |
| const bool original = state_->visible; |
| state_->visible = false; |
| state_->mode_changed_.Reset(); |
| return GetDefaultAction(original, state_->visible); |
| } |
| |
| IndicatorVisibilityTracker::Action |
| IndicatorVisibilityTracker::OnMoveFocusedWindow() { |
| const bool original = state_->visible; |
| if (state_->mode_changed_.IsRunning()) { |
| if (state_->mode_changed_.GetElapsedMilliseconds() >= |
| kIgnoreMoveWindowDuration) { |
| state_->mode_changed_.Reset(); |
| state_->visible = false; |
| } |
| } else { |
| state_->visible = false; |
| } |
| return GetDefaultAction(original, state_->visible); |
| } |
| |
| IndicatorVisibilityTracker::Action |
| IndicatorVisibilityTracker::OnChangeInputMode() { |
| const bool original = state_->visible; |
| state_->visible = true; |
| state_->mode_changed_.Stop(); |
| state_->mode_changed_.Reset(); |
| state_->mode_changed_.Start(); |
| return GetDefaultAction(original, state_->visible); |
| } |
| |
| bool IndicatorVisibilityTracker::IsVisible() const { |
| if (!kIndicatorSupported) { |
| return false; |
| } |
| |
| return state_->visible; |
| } |
| |
| } // namespace win32 |
| } // namespace mozc |